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-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.c233
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.h32
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.c483
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.h52
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/glxheader.h63
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_api.c2675
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_buffer.c115
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_dd.c1201
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_line.c674
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_span.c4799
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_tri.c1623
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xmesaP.h554
12 files changed, 12504 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.c b/nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.c
new file mode 100644
index 000000000..0177490f7
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.c
@@ -0,0 +1,233 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "buffers.h"
+#include "context.h"
+#include "framebuffer.h"
+#include "program.h"
+#include "renderbuffer.h"
+#include "texcompress.h"
+#include "texformat.h"
+#include "teximage.h"
+#include "texobj.h"
+#include "texstore.h"
+#if FEATURE_ARB_vertex_buffer_object
+#include "bufferobj.h"
+#endif
+#if FEATURE_EXT_framebuffer_object
+#include "fbobject.h"
+#include "texrender.h"
+#endif
+
+#include "driverfuncs.h"
+#include "swrast/swrast.h"
+#include "tnl/tnl.h"
+
+
+
+/**
+ * Plug in default functions for all pointers in the dd_function_table
+ * structure.
+ * Device drivers should call this function and then plug in any
+ * functions which it wants to override.
+ * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
+ *
+ * \param table the dd_function_table to initialize
+ */
+void
+_mesa_init_driver_functions(struct dd_function_table *driver)
+{
+ _mesa_bzero(driver, sizeof(*driver));
+
+ driver->GetString = NULL; /* REQUIRED! */
+ driver->UpdateState = NULL; /* REQUIRED! */
+ driver->GetBufferSize = NULL; /* REQUIRED! */
+ driver->ResizeBuffers = _mesa_resize_framebuffer;
+ driver->Error = NULL;
+
+ driver->Finish = NULL;
+ driver->Flush = NULL;
+
+ /* framebuffer/image functions */
+ driver->Clear = _swrast_Clear;
+ driver->Accum = _swrast_Accum;
+ driver->DrawPixels = _swrast_DrawPixels;
+ driver->ReadPixels = _swrast_ReadPixels;
+ driver->CopyPixels = _swrast_CopyPixels;
+ driver->Bitmap = _swrast_Bitmap;
+
+ /* Texture functions */
+ driver->ChooseTextureFormat = _mesa_choose_tex_format;
+ driver->TexImage1D = _mesa_store_teximage1d;
+ driver->TexImage2D = _mesa_store_teximage2d;
+ driver->TexImage3D = _mesa_store_teximage3d;
+ driver->TexSubImage1D = _mesa_store_texsubimage1d;
+ driver->TexSubImage2D = _mesa_store_texsubimage2d;
+ driver->TexSubImage3D = _mesa_store_texsubimage3d;
+ driver->GetTexImage = _mesa_get_teximage;
+ driver->CopyTexImage1D = _swrast_copy_teximage1d;
+ driver->CopyTexImage2D = _swrast_copy_teximage2d;
+ driver->CopyTexSubImage1D = _swrast_copy_texsubimage1d;
+ driver->CopyTexSubImage2D = _swrast_copy_texsubimage2d;
+ driver->CopyTexSubImage3D = _swrast_copy_texsubimage3d;
+ driver->TestProxyTexImage = _mesa_test_proxy_teximage;
+ driver->CompressedTexImage1D = _mesa_store_compressed_teximage1d;
+ driver->CompressedTexImage2D = _mesa_store_compressed_teximage2d;
+ driver->CompressedTexImage3D = _mesa_store_compressed_teximage3d;
+ driver->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
+ driver->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
+ driver->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
+ driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
+ driver->CompressedTextureSize = _mesa_compressed_texture_size;
+ driver->BindTexture = NULL;
+ driver->NewTextureObject = _mesa_new_texture_object;
+ driver->DeleteTexture = _mesa_delete_texture_object;
+ driver->NewTextureImage = _mesa_new_texture_image;
+ driver->FreeTexImageData = _mesa_free_texture_image_data;
+ driver->TextureMemCpy = _mesa_memcpy;
+ driver->IsTextureResident = NULL;
+ driver->PrioritizeTexture = NULL;
+ driver->ActiveTexture = NULL;
+ driver->UpdateTexturePalette = NULL;
+
+ /* imaging */
+ driver->CopyColorTable = _swrast_CopyColorTable;
+ driver->CopyColorSubTable = _swrast_CopyColorSubTable;
+ driver->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
+ driver->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+
+ /* Vertex/fragment programs */
+ driver->BindProgram = NULL;
+ driver->NewProgram = _mesa_new_program;
+ driver->DeleteProgram = _mesa_delete_program;
+
+ /* simple state commands */
+ driver->AlphaFunc = NULL;
+ driver->BlendColor = NULL;
+ driver->BlendEquationSeparate = NULL;
+ driver->BlendFuncSeparate = NULL;
+ driver->ClearColor = NULL;
+ driver->ClearDepth = NULL;
+ driver->ClearIndex = NULL;
+ driver->ClearStencil = NULL;
+ driver->ClipPlane = NULL;
+ driver->ColorMask = NULL;
+ driver->ColorMaterial = NULL;
+ driver->CullFace = NULL;
+ driver->DrawBuffer = _swrast_DrawBuffer;
+ driver->DrawBuffers = NULL; /***_swrast_DrawBuffers;***/
+ driver->FrontFace = NULL;
+ driver->DepthFunc = NULL;
+ driver->DepthMask = NULL;
+ driver->DepthRange = NULL;
+ driver->Enable = NULL;
+ driver->Fogfv = NULL;
+ driver->Hint = NULL;
+ driver->IndexMask = NULL;
+ driver->Lightfv = NULL;
+ driver->LightModelfv = NULL;
+ driver->LineStipple = NULL;
+ driver->LineWidth = NULL;
+ driver->LogicOpcode = NULL;
+ driver->PointParameterfv = NULL;
+ driver->PointSize = NULL;
+ driver->PolygonMode = NULL;
+ driver->PolygonOffset = NULL;
+ driver->PolygonStipple = NULL;
+ driver->ReadBuffer = NULL;
+ driver->RenderMode = NULL;
+ driver->Scissor = NULL;
+ driver->ShadeModel = NULL;
+ driver->StencilFunc = NULL;
+ driver->StencilMask = NULL;
+ driver->StencilOp = NULL;
+ driver->ActiveStencilFace = NULL;
+ driver->TexGen = NULL;
+ driver->TexEnv = NULL;
+ driver->TexParameter = NULL;
+ driver->TextureMatrix = NULL;
+ driver->Viewport = NULL;
+
+ /* vertex arrays */
+ driver->VertexPointer = NULL;
+ driver->NormalPointer = NULL;
+ driver->ColorPointer = NULL;
+ driver->FogCoordPointer = NULL;
+ driver->IndexPointer = NULL;
+ driver->SecondaryColorPointer = NULL;
+ driver->TexCoordPointer = NULL;
+ driver->EdgeFlagPointer = NULL;
+ driver->VertexAttribPointer = NULL;
+ driver->LockArraysEXT = NULL;
+ driver->UnlockArraysEXT = NULL;
+
+ /* state queries */
+ driver->GetBooleanv = NULL;
+ driver->GetDoublev = NULL;
+ driver->GetFloatv = NULL;
+ driver->GetIntegerv = NULL;
+ driver->GetPointerv = NULL;
+
+#if FEATURE_ARB_vertex_buffer_object
+ driver->NewBufferObject = _mesa_new_buffer_object;
+ driver->DeleteBuffer = _mesa_delete_buffer_object;
+ driver->BindBuffer = NULL;
+ driver->BufferData = _mesa_buffer_data;
+ driver->BufferSubData = _mesa_buffer_subdata;
+ driver->GetBufferSubData = _mesa_buffer_get_subdata;
+ driver->MapBuffer = _mesa_buffer_map;
+ driver->UnmapBuffer = _mesa_buffer_unmap;
+#endif
+
+#if FEATURE_EXT_framebuffer_object
+ driver->NewFramebuffer = _mesa_new_framebuffer;
+ driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
+ driver->RenderbufferTexture = _mesa_renderbuffer_texture;
+ driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
+#endif
+
+ /* T&L stuff */
+ driver->NeedValidate = GL_FALSE;
+ driver->ValidateTnlModule = NULL;
+ driver->CurrentExecPrimitive = 0;
+ driver->CurrentSavePrimitive = 0;
+ driver->NeedFlush = 0;
+ driver->SaveNeedFlush = 0;
+
+ driver->FlushVertices = NULL;
+ driver->SaveFlushVertices = NULL;
+ driver->NotifySaveBegin = NULL;
+ driver->LightingSpaceChange = NULL;
+ driver->MakeCurrent = NULL;
+ driver->ProgramStringNotify = _tnl_program_string;
+
+ /* display list */
+ driver->NewList = NULL;
+ driver->EndList = NULL;
+ driver->BeginCallList = NULL;
+ driver->EndCallList = NULL;
+}
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.h b/nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.h
new file mode 100644
index 000000000..64f56d91f
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/common/driverfuncs.h
@@ -0,0 +1,32 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.1
+ *
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef DRIVERFUNCS_H
+#define DRIVERFUNCS_H
+
+extern void
+_mesa_init_driver_functions(struct dd_function_table *driver);
+
+#endif
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.c
new file mode 100644
index 000000000..7d4d06ab8
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.c
@@ -0,0 +1,483 @@
+/*
+ * (C) Copyright IBM Corporation 2003
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file glcontextmodes.c
+ * Utility routines for working with \c __GLcontextModes structures. At
+ * some point most or all of these functions will be moved to the Mesa
+ * code base.
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+# include <stdlib.h>
+# include <string.h>
+
+#if defined(IN_MINI_GLX)
+# include <GL/gl.h>
+# include "GL/internal/dri_interface.h"
+# include "imports.h"
+#else
+# include <nx-X11/X.h>
+# include <GL/glx.h>
+# include "GL/glxint.h"
+#endif /* !defined(IN_MINI_GLX) */
+
+#include "glcontextmodes.h"
+
+#if !defined(IN_MINI_GLX)
+#define NUM_VISUAL_TYPES 6
+
+/**
+ * Convert an X visual type to a GLX visual type.
+ *
+ * \param visualType X visual type (i.e., \c TrueColor, \c StaticGray, etc.)
+ * to be converted.
+ * \return If \c visualType is a valid X visual type, a GLX visual type will
+ * be returned. Otherwise \c GLX_NONE will be returned.
+ */
+GLint
+_gl_convert_from_x_visual_type( int visualType )
+{
+ static const int glx_visual_types[ NUM_VISUAL_TYPES ] = {
+ GLX_STATIC_GRAY, GLX_GRAY_SCALE,
+ GLX_STATIC_COLOR, GLX_PSEUDO_COLOR,
+ GLX_TRUE_COLOR, GLX_DIRECT_COLOR
+ };
+
+ return ( (unsigned) visualType < NUM_VISUAL_TYPES )
+ ? glx_visual_types[ visualType ] : GLX_NONE;
+}
+
+
+/**
+ * Convert a GLX visual type to an X visual type.
+ *
+ * \param visualType GLX visual type (i.e., \c GLX_TRUE_COLOR,
+ * \c GLX_STATIC_GRAY, etc.) to be converted.
+ * \return If \c visualType is a valid GLX visual type, an X visual type will
+ * be returned. Otherwise -1 will be returned.
+ */
+GLint
+_gl_convert_to_x_visual_type( int visualType )
+{
+ static const int x_visual_types[ NUM_VISUAL_TYPES ] = {
+ TrueColor, DirectColor,
+ PseudoColor, StaticColor,
+ GrayScale, StaticGray
+ };
+
+ return ( (unsigned) (visualType - GLX_TRUE_COLOR) <= NUM_VISUAL_TYPES )
+ ? x_visual_types[ visualType - GLX_TRUE_COLOR ] : -1;
+}
+
+
+/**
+ * Copy a GLX visual config structure to a GL context mode structure. All
+ * of the fields in \c config are copied to \c mode. Additional fields in
+ * \c mode that can be derrived from the fields of \c config (i.e.,
+ * \c haveDepthBuffer) are also filled in. The remaining fields in \c mode
+ * that cannot be derrived are set to default values.
+ *
+ * \param mode Destination GL context mode.
+ * \param config Source GLX visual config.
+ *
+ * \note
+ * The \c fbconfigID and \c visualID fields of the \c __GLcontextModes
+ * structure will be set to the \c vid of the \c __GLXvisualConfig structure.
+ */
+void
+_gl_copy_visual_to_context_mode( __GLcontextModes * mode,
+ const __GLXvisualConfig * config )
+{
+ __GLcontextModes * const next = mode->next;
+
+ (void) memset( mode, 0, sizeof( __GLcontextModes ) );
+ mode->next = next;
+
+ mode->visualID = config->vid;
+ mode->visualType = _gl_convert_from_x_visual_type( config->class );
+ mode->xRenderable = GL_TRUE;
+ mode->fbconfigID = config->vid;
+ mode->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT;
+
+ mode->rgbMode = (config->rgba != 0);
+ mode->renderType = (mode->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT;
+
+ mode->colorIndexMode = !(mode->rgbMode);
+ mode->doubleBufferMode = (config->doubleBuffer != 0);
+ mode->stereoMode = (config->stereo != 0);
+
+ mode->haveAccumBuffer = ((config->accumRedSize +
+ config->accumGreenSize +
+ config->accumBlueSize +
+ config->accumAlphaSize) > 0);
+ mode->haveDepthBuffer = (config->depthSize > 0);
+ mode->haveStencilBuffer = (config->stencilSize > 0);
+
+ mode->redBits = config->redSize;
+ mode->greenBits = config->greenSize;
+ mode->blueBits = config->blueSize;
+ mode->alphaBits = config->alphaSize;
+ mode->redMask = config->redMask;
+ mode->greenMask = config->greenMask;
+ mode->blueMask = config->blueMask;
+ mode->alphaMask = config->alphaMask;
+ mode->rgbBits = mode->rgbMode ? config->bufferSize : 0;
+ mode->indexBits = mode->colorIndexMode ? config->bufferSize : 0;
+
+ mode->accumRedBits = config->accumRedSize;
+ mode->accumGreenBits = config->accumGreenSize;
+ mode->accumBlueBits = config->accumBlueSize;
+ mode->accumAlphaBits = config->accumAlphaSize;
+ mode->depthBits = config->depthSize;
+ mode->stencilBits = config->stencilSize;
+
+ mode->numAuxBuffers = config->auxBuffers;
+ mode->level = config->level;
+
+ mode->visualRating = config->visualRating;
+ mode->transparentPixel = config->transparentPixel;
+ mode->transparentRed = config->transparentRed;
+ mode->transparentGreen = config->transparentGreen;
+ mode->transparentBlue = config->transparentBlue;
+ mode->transparentAlpha = config->transparentAlpha;
+ mode->transparentIndex = config->transparentIndex;
+
+ mode->swapMethod = GLX_SWAP_UNDEFINED_OML;
+}
+
+
+/**
+ * Get data from a GL context mode.
+ *
+ * \param mode GL context mode whose data is to be returned.
+ * \param attribute Attribute of \c mode that is to be returned.
+ * \param value_return Location to store the data member of \c mode.
+ * \return If \c attribute is a valid attribute of \c mode, zero is
+ * returned. Otherwise \c GLX_BAD_ATTRIBUTE is returned.
+ */
+int
+_gl_get_context_mode_data(const __GLcontextModes *mode, int attribute,
+ int *value_return)
+{
+ switch (attribute) {
+ case GLX_USE_GL:
+ *value_return = GL_TRUE;
+ return 0;
+ case GLX_BUFFER_SIZE:
+ *value_return = mode->rgbBits;
+ return 0;
+ case GLX_RGBA:
+ *value_return = mode->rgbMode;
+ return 0;
+ case GLX_RED_SIZE:
+ *value_return = mode->redBits;
+ return 0;
+ case GLX_GREEN_SIZE:
+ *value_return = mode->greenBits;
+ return 0;
+ case GLX_BLUE_SIZE:
+ *value_return = mode->blueBits;
+ return 0;
+ case GLX_ALPHA_SIZE:
+ *value_return = mode->alphaBits;
+ return 0;
+ case GLX_DOUBLEBUFFER:
+ *value_return = mode->doubleBufferMode;
+ return 0;
+ case GLX_STEREO:
+ *value_return = mode->stereoMode;
+ return 0;
+ case GLX_AUX_BUFFERS:
+ *value_return = mode->numAuxBuffers;
+ return 0;
+ case GLX_DEPTH_SIZE:
+ *value_return = mode->depthBits;
+ return 0;
+ case GLX_STENCIL_SIZE:
+ *value_return = mode->stencilBits;
+ return 0;
+ case GLX_ACCUM_RED_SIZE:
+ *value_return = mode->accumRedBits;
+ return 0;
+ case GLX_ACCUM_GREEN_SIZE:
+ *value_return = mode->accumGreenBits;
+ return 0;
+ case GLX_ACCUM_BLUE_SIZE:
+ *value_return = mode->accumBlueBits;
+ return 0;
+ case GLX_ACCUM_ALPHA_SIZE:
+ *value_return = mode->accumAlphaBits;
+ return 0;
+ case GLX_LEVEL:
+ *value_return = mode->level;
+ return 0;
+ case GLX_TRANSPARENT_TYPE_EXT:
+ *value_return = mode->transparentPixel;
+ return 0;
+ case GLX_TRANSPARENT_RED_VALUE:
+ *value_return = mode->transparentRed;
+ return 0;
+ case GLX_TRANSPARENT_GREEN_VALUE:
+ *value_return = mode->transparentGreen;
+ return 0;
+ case GLX_TRANSPARENT_BLUE_VALUE:
+ *value_return = mode->transparentBlue;
+ return 0;
+ case GLX_TRANSPARENT_ALPHA_VALUE:
+ *value_return = mode->transparentAlpha;
+ return 0;
+ case GLX_TRANSPARENT_INDEX_VALUE:
+ *value_return = mode->transparentIndex;
+ return 0;
+ case GLX_X_VISUAL_TYPE:
+ *value_return = mode->visualType;
+ return 0;
+ case GLX_CONFIG_CAVEAT:
+ *value_return = mode->visualRating;
+ return 0;
+ case GLX_VISUAL_ID:
+ *value_return = mode->visualID;
+ return 0;
+ case GLX_DRAWABLE_TYPE:
+ *value_return = mode->drawableType;
+ return 0;
+ case GLX_RENDER_TYPE:
+ *value_return = mode->renderType;
+ return 0;
+ case GLX_X_RENDERABLE:
+ *value_return = mode->xRenderable;
+ return 0;
+ case GLX_FBCONFIG_ID:
+ *value_return = mode->fbconfigID;
+ return 0;
+ case GLX_MAX_PBUFFER_WIDTH:
+ *value_return = mode->maxPbufferWidth;
+ return 0;
+ case GLX_MAX_PBUFFER_HEIGHT:
+ *value_return = mode->maxPbufferHeight;
+ return 0;
+ case GLX_MAX_PBUFFER_PIXELS:
+ *value_return = mode->maxPbufferPixels;
+ return 0;
+ case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX:
+ *value_return = mode->optimalPbufferWidth;
+ return 0;
+ case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX:
+ *value_return = mode->optimalPbufferHeight;
+ return 0;
+ case GLX_SWAP_METHOD_OML:
+ *value_return = mode->swapMethod;
+ return 0;
+ case GLX_SAMPLE_BUFFERS_SGIS:
+ *value_return = mode->sampleBuffers;
+ return 0;
+ case GLX_SAMPLES_SGIS:
+ *value_return = mode->samples;
+ return 0;
+
+ /* Applications are NOT allowed to query GLX_VISUAL_SELECT_GROUP_SGIX.
+ * It is ONLY for communication between the GLX client and the GLX
+ * server.
+ */
+ case GLX_VISUAL_SELECT_GROUP_SGIX:
+ default:
+ return GLX_BAD_ATTRIBUTE;
+ }
+}
+#endif /* !defined(IN_MINI_GLX) */
+
+
+/**
+ * Allocate a linked list of \c __GLcontextModes structures. The fields of
+ * each structure will be initialized to "reasonable" default values. In
+ * most cases this is the default value defined by table 3.4 of the GLX
+ * 1.3 specification. This means that most values are either initialized to
+ * zero or \c GLX_DONT_CARE (which is -1). As support for additional
+ * extensions is added, the new values will be initialized to appropriate
+ * values from the extension specification.
+ *
+ * \param count Number of structures to allocate.
+ * \param minimum_size Minimum size of a structure to allocate. This allows
+ * for differences in the version of the
+ * \c __GLcontextModes stucture used in libGL and in a
+ * DRI-based driver.
+ * \returns A pointer to the first element in a linked list of \c count
+ * stuctures on success, or \c NULL on failure.
+ *
+ * \warning Use of \c minimum_size does \b not guarantee binary compatibility.
+ * The fundamental assumption is that if the \c minimum_size
+ * specified by the driver and the size of the \c __GLcontextModes
+ * structure in libGL is the same, then the meaning of each byte in
+ * the structure is the same in both places. \b Be \b careful!
+ * Basically this means that fields have to be added in libGL and
+ * then propagated to drivers. Drivers should \b never arbitrarilly
+ * extend the \c __GLcontextModes data-structure.
+ */
+__GLcontextModes *
+_gl_context_modes_create( unsigned count, size_t minimum_size )
+{
+ const size_t size = (minimum_size > sizeof( __GLcontextModes ))
+ ? minimum_size : sizeof( __GLcontextModes );
+ __GLcontextModes * base = NULL;
+ __GLcontextModes ** next;
+ unsigned i;
+
+ next = & base;
+ for ( i = 0 ; i < count ; i++ ) {
+ *next = (__GLcontextModes *) malloc( size );
+ if ( *next == NULL ) {
+ _gl_context_modes_destroy( base );
+ base = NULL;
+ break;
+ }
+
+ (void) memset( *next, 0, size );
+ (*next)->visualID = GLX_DONT_CARE;
+ (*next)->visualType = GLX_DONT_CARE;
+ (*next)->visualRating = GLX_NONE;
+ (*next)->transparentPixel = GLX_NONE;
+ (*next)->transparentRed = GLX_DONT_CARE;
+ (*next)->transparentGreen = GLX_DONT_CARE;
+ (*next)->transparentBlue = GLX_DONT_CARE;
+ (*next)->transparentAlpha = GLX_DONT_CARE;
+ (*next)->transparentIndex = GLX_DONT_CARE;
+ (*next)->xRenderable = GLX_DONT_CARE;
+ (*next)->fbconfigID = GLX_DONT_CARE;
+ (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML;
+
+ next = & ((*next)->next);
+ }
+
+ return base;
+}
+
+
+/**
+ * Destroy a linked list of \c __GLcontextModes structures created by
+ * \c _gl_context_modes_create.
+ *
+ * \param modes Linked list of structures to be destroyed. All structres
+ * in the list will be freed.
+ */
+void
+_gl_context_modes_destroy( __GLcontextModes * modes )
+{
+ while ( modes != NULL ) {
+ __GLcontextModes * const next = modes->next;
+
+ free( modes );
+ modes = next;
+ }
+}
+
+
+/**
+ * Find a context mode matching a Visual ID.
+ *
+ * \param modes List list of context-mode structures to be searched.
+ * \param vid Visual ID to be found.
+ * \returns A pointer to a context-mode in \c modes if \c vid was found in
+ * the list, or \c NULL if it was not.
+ */
+
+__GLcontextModes *
+_gl_context_modes_find_visual( __GLcontextModes * modes, int vid )
+{
+ while ( modes != NULL ) {
+ if ( modes->visualID == vid ) {
+ break;
+ }
+
+ modes = modes->next;
+ }
+
+ return modes;
+}
+
+
+/**
+ * Determine if two context-modes are the same. This is intended to be used
+ * by libGL implementations to compare to sets of driver generated FBconfigs.
+ *
+ * \param a Context-mode to be compared.
+ * \param b Context-mode to be compared.
+ * \returns \c GL_TRUE if the two context-modes are the same. \c GL_FALSE is
+ * returned otherwise.
+ */
+GLboolean
+_gl_context_modes_are_same( const __GLcontextModes * a,
+ const __GLcontextModes * b )
+{
+ return( (a->rgbMode == b->rgbMode) &&
+ (a->floatMode == b->floatMode) &&
+ (a->colorIndexMode == b->colorIndexMode) &&
+ (a->doubleBufferMode == b->doubleBufferMode) &&
+ (a->stereoMode == b->stereoMode) &&
+ (a->redBits == b->redBits) &&
+ (a->greenBits == b->greenBits) &&
+ (a->blueBits == b->blueBits) &&
+ (a->alphaBits == b->alphaBits) &&
+#if 0 /* For some reason these don't get set on the client-side in libGL. */
+ (a->redMask == b->redMask) &&
+ (a->greenMask == b->greenMask) &&
+ (a->blueMask == b->blueMask) &&
+ (a->alphaMask == b->alphaMask) &&
+#endif
+ (a->rgbBits == b->rgbBits) &&
+ (a->indexBits == b->indexBits) &&
+ (a->accumRedBits == b->accumRedBits) &&
+ (a->accumGreenBits == b->accumGreenBits) &&
+ (a->accumBlueBits == b->accumBlueBits) &&
+ (a->accumAlphaBits == b->accumAlphaBits) &&
+ (a->depthBits == b->depthBits) &&
+ (a->stencilBits == b->stencilBits) &&
+ (a->numAuxBuffers == b->numAuxBuffers) &&
+ (a->level == b->level) &&
+ (a->pixmapMode == b->pixmapMode) &&
+ (a->visualRating == b->visualRating) &&
+
+ (a->transparentPixel == b->transparentPixel) &&
+
+ ((a->transparentPixel != GLX_TRANSPARENT_RGB) ||
+ ((a->transparentRed == b->transparentRed) &&
+ (a->transparentGreen == b->transparentGreen) &&
+ (a->transparentBlue == b->transparentBlue) &&
+ (a->transparentAlpha == b->transparentAlpha))) &&
+
+ ((a->transparentPixel != GLX_TRANSPARENT_INDEX) ||
+ (a->transparentIndex == b->transparentIndex)) &&
+
+ (a->sampleBuffers == b->sampleBuffers) &&
+ (a->samples == b->samples) &&
+ ((a->drawableType & b->drawableType) != 0) &&
+ (a->renderType == b->renderType) &&
+ (a->maxPbufferWidth == b->maxPbufferWidth) &&
+ (a->maxPbufferHeight == b->maxPbufferHeight) &&
+ (a->maxPbufferPixels == b->maxPbufferPixels) &&
+ (a->optimalPbufferWidth == b->optimalPbufferWidth) &&
+ (a->optimalPbufferHeight == b->optimalPbufferHeight) &&
+ (a->swapMethod == b->swapMethod) );
+}
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.h
new file mode 100644
index 000000000..4b5c6f68b
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/glcontextmodes.h
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright IBM Corporation 2003
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file glcontextmodes.h
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#ifndef GLCONTEXTMODES_H
+#define GLCONTEXTMODES_H
+
+#include "GL/internal/glcore.h"
+
+#if !defined(IN_MINI_GLX)
+extern GLint _gl_convert_from_x_visual_type( int visualType );
+extern GLint _gl_convert_to_x_visual_type( int visualType );
+extern void _gl_copy_visual_to_context_mode( __GLcontextModes * mode,
+ const __GLXvisualConfig * config );
+extern int _gl_get_context_mode_data( const __GLcontextModes *mode,
+ int attribute, int *value_return );
+#endif /* !defined(IN_MINI_GLX) */
+
+extern __GLcontextModes * _gl_context_modes_create( unsigned count,
+ size_t minimum_size );
+extern void _gl_context_modes_destroy( __GLcontextModes * modes );
+extern __GLcontextModes * _gl_context_modes_find_visual(
+ __GLcontextModes * modes, int vid );
+extern GLboolean _gl_context_modes_are_same( const __GLcontextModes * a,
+ const __GLcontextModes * b );
+
+#endif /* GLCONTEXTMODES_H */
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/glxheader.h b/nx-X11/extras/Mesa/src/mesa/drivers/x11/glxheader.h
new file mode 100644
index 000000000..6a1f2ed20
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/glxheader.h
@@ -0,0 +1,63 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.1
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef GLX_HEADER_H
+#define GLX_HEADER_H
+
+#ifdef __VMS
+#include <GL/vms_x_fix.h>
+#endif
+
+#include "glheader.h"
+
+#ifdef XFree86Server
+
+# include "resource.h"
+# include "windowstr.h"
+# include "gcstruct.h"
+# include "xf86glx_util.h"
+
+#else
+
+# include <nx-X11/Xlib.h>
+# include <nx-X11/Xutil.h>
+# ifdef USE_XSHM /* was SHM */
+# include <sys/ipc.h>
+# include <sys/shm.h>
+# include <X11/extensions/XShm.h>
+# endif
+# include <GL/glx.h>
+
+#endif
+
+
+
+/* this silences a compiler warning on several systems */
+struct timespec;
+struct itimerspec;
+
+
+#endif /*GLX_HEADER*/
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_api.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_api.c
new file mode 100644
index 000000000..6ed2be564
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_api.c
@@ -0,0 +1,2675 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * This file contains the implementations of all the XMesa* functions.
+ *
+ *
+ * NOTES:
+ *
+ * The window coordinate system origin (0,0) is in the lower-left corner
+ * of the window. X11's window coordinate origin is in the upper-left
+ * corner of the window. Therefore, most drawing functions in this
+ * file have to flip Y coordinates.
+ *
+ * Define USE_XSHM in the Makefile with -DUSE_XSHM if you want to compile
+ * in support for the MIT Shared Memory extension. If enabled, when you
+ * use an Ximage for the back buffer in double buffered mode, the "swap"
+ * operation will be faster. You must also link with -lXext.
+ *
+ * Byte swapping: If the Mesa host and the X display use a different
+ * byte order then there's some trickiness to be aware of when using
+ * XImages. The byte ordering used for the XImage is that of the X
+ * display, not the Mesa host.
+ * The color-to-pixel encoding for True/DirectColor must be done
+ * according to the display's visual red_mask, green_mask, and blue_mask.
+ * If XPutPixel is used to put a pixel into an XImage then XPutPixel will
+ * do byte swapping if needed. If one wants to directly "poke" the pixel
+ * into the XImage's buffer then the pixel must be byte swapped first. In
+ * Mesa, when byte swapping is needed we use the PF_TRUECOLOR pixel format
+ * and use XPutPixel everywhere except in the implementation of
+ * glClear(GL_COLOR_BUFFER_BIT). We want this function to be fast so
+ * instead of using XPutPixel we "poke" our values after byte-swapping
+ * the clear pixel value if needed.
+ *
+ */
+
+#ifdef __CYGWIN__
+#undef WIN32
+#undef __WIN32__
+#endif
+
+#include "glxheader.h"
+#include "GL/xmesa.h"
+#include "xmesaP.h"
+#include "context.h"
+#include "extensions.h"
+#include "framebuffer.h"
+#include "glthread.h"
+#include "imports.h"
+#include "matrix.h"
+#include "mtypes.h"
+#include "macros.h"
+#include "renderbuffer.h"
+#include "texformat.h"
+#include "texobj.h"
+#include "texstore.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "array_cache/acache.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#include "drivers/common/driverfuncs.h"
+
+#ifdef XFree86Server
+#include <GL/glxtokens.h>
+#endif
+
+/*
+ * Global X driver lock
+ */
+_glthread_Mutex _xmesa_lock;
+
+
+
+/*
+ * Lookup tables for HPCR pixel format:
+ */
+static short hpcr_rgbTbl[3][256] = {
+{
+ 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23,
+ 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31,
+ 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39,
+ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
+ 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
+112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
+128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
+144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
+160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
+176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
+192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
+208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
+224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239
+},
+{
+ 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23,
+ 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31,
+ 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39,
+ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
+ 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
+112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
+128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
+144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
+160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
+176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
+192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
+208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
+224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239
+},
+{
+ 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39,
+ 40, 40, 41, 41, 42, 42, 43, 43, 44, 44, 45, 45, 46, 46, 47, 47,
+ 48, 48, 49, 49, 50, 50, 51, 51, 52, 52, 53, 53, 54, 54, 55, 55,
+ 56, 56, 57, 57, 58, 58, 59, 59, 60, 60, 61, 61, 62, 62, 63, 63,
+ 64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 69, 70, 70, 71, 71,
+ 72, 72, 73, 73, 74, 74, 75, 75, 76, 76, 77, 77, 78, 78, 79, 79,
+ 80, 80, 81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 86, 86, 87, 87,
+ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
+112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
+128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
+144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
+160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
+176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
+192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
+208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223
+}
+};
+
+
+
+/**********************************************************************/
+/***** X Utility Functions *****/
+/**********************************************************************/
+
+
+/*
+ * Return the host's byte order as LSBFirst or MSBFirst ala X.
+ */
+#ifndef XFree86Server
+static int host_byte_order( void )
+{
+ int i = 1;
+ char *cptr = (char *) &i;
+ return (*cptr==1) ? LSBFirst : MSBFirst;
+}
+#endif
+
+
+/*
+ * Error handling.
+ */
+#ifndef XFree86Server
+static volatile int mesaXErrorFlag = 0;
+
+static int mesaHandleXError( XMesaDisplay *dpy, XErrorEvent *event )
+{
+ (void) dpy;
+ (void) event;
+ mesaXErrorFlag = 1;
+ return 0;
+}
+#endif
+
+
+/*
+ * Check if the X Shared Memory extension is available.
+ * Return: 0 = not available
+ * 1 = shared XImage support available
+ * 2 = shared Pixmap support available also
+ */
+#ifndef XFree86Server
+static int check_for_xshm( XMesaDisplay *display )
+{
+#ifdef USE_XSHM
+ int major, minor, ignore;
+ Bool pixmaps;
+
+ if (XQueryExtension( display, "MIT-SHM", &ignore, &ignore, &ignore )) {
+ if (XShmQueryVersion( display, &major, &minor, &pixmaps )==True) {
+ return (pixmaps==True) ? 2 : 1;
+ }
+ else {
+ return 0;
+ }
+ }
+ else {
+ return 0;
+ }
+#else
+ /* Can't compile XSHM support */
+ return 0;
+#endif
+}
+#endif
+
+
+/*
+ * Apply gamma correction to an intensity value in [0..max]. Return the
+ * new intensity value.
+ */
+static GLint gamma_adjust( GLfloat gamma, GLint value, GLint max )
+{
+ if (gamma == 1.0) {
+ return value;
+ }
+ else {
+ double x = (double) value / (double) max;
+ return IROUND_POS((GLfloat) max * _mesa_pow(x, 1.0F/gamma));
+ }
+}
+
+
+
+/*
+ * Return the true number of bits per pixel for XImages.
+ * For example, if we request a 24-bit deep visual we may actually need/get
+ * 32bpp XImages. This function returns the appropriate bpp.
+ * Input: dpy - the X display
+ * visinfo - desribes the visual to be used for XImages
+ * Return: true number of bits per pixel for XImages
+ */
+#ifdef XFree86Server
+
+static int bits_per_pixel( XMesaVisual xmv )
+{
+ const int depth = xmv->nplanes;
+ int i;
+ for (i = 0; i < screenInfo.numPixmapFormats; i++) {
+ if (screenInfo.formats[i].depth == depth)
+ return screenInfo.formats[i].bitsPerPixel;
+ }
+ return depth; /* should never get here, but this should be safe */
+}
+
+#else
+
+static int bits_per_pixel( XMesaVisual xmv )
+{
+ XMesaDisplay *dpy = xmv->display;
+ XMesaVisualInfo visinfo = xmv->visinfo;
+ XMesaImage *img;
+ int bitsPerPixel;
+ /* Create a temporary XImage */
+ img = XCreateImage( dpy, visinfo->visual, visinfo->depth,
+ ZPixmap, 0, /*format, offset*/
+ (char*) MALLOC(8), /*data*/
+ 1, 1, /*width, height*/
+ 32, /*bitmap_pad*/
+ 0 /*bytes_per_line*/
+ );
+ assert(img);
+ /* grab the bits/pixel value */
+ bitsPerPixel = img->bits_per_pixel;
+ /* free the XImage */
+ _mesa_free( img->data );
+ img->data = NULL;
+ XMesaDestroyImage( img );
+ return bitsPerPixel;
+}
+#endif
+
+
+
+/*
+ * Determine if a given X window ID is valid (window exists).
+ * Do this by calling XGetWindowAttributes() for the window and
+ * checking if we catch an X error.
+ * Input: dpy - the display
+ * win - the window to check for existance
+ * Return: GL_TRUE - window exists
+ * GL_FALSE - window doesn't exist
+ */
+#ifndef XFree86Server
+static GLboolean WindowExistsFlag;
+
+static int window_exists_err_handler( XMesaDisplay* dpy, XErrorEvent* xerr )
+{
+ (void) dpy;
+ if (xerr->error_code == BadWindow) {
+ WindowExistsFlag = GL_FALSE;
+ }
+ return 0;
+}
+
+static GLboolean window_exists( XMesaDisplay *dpy, Window win )
+{
+ XWindowAttributes wa;
+ int (*old_handler)( XMesaDisplay*, XErrorEvent* );
+ WindowExistsFlag = GL_TRUE;
+ old_handler = XSetErrorHandler(window_exists_err_handler);
+ XGetWindowAttributes( dpy, win, &wa ); /* dummy request */
+ XSetErrorHandler(old_handler);
+ return WindowExistsFlag;
+}
+#endif
+
+
+
+/**********************************************************************/
+/***** Linked list of XMesaBuffers *****/
+/**********************************************************************/
+
+static XMesaBuffer XMesaBufferList = NULL;
+
+
+/**
+ * Allocate a new XMesaBuffer, initialize basic fields and add to
+ * the list of all buffers.
+ */
+static XMesaBuffer
+alloc_xmesa_buffer(XMesaVisual vis, BufferType type, XMesaColormap cmap)
+{
+ XMesaBuffer b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer);
+ if (b) {
+ GLboolean swAlpha;
+
+ b->display = vis->display;
+ b->xm_visual = vis;
+ b->type = type;
+ b->cmap = cmap;
+
+ _mesa_initialize_framebuffer(&b->mesa_buffer, &vis->mesa_visual);
+
+ /* determine back buffer implementation */
+ if (vis->mesa_visual.doubleBufferMode) {
+ if (vis->ximage_flag) {
+ b->db_state = BACK_XIMAGE;
+ }
+ else {
+ b->db_state = BACK_PIXMAP;
+ }
+ }
+ else {
+ b->db_state = 0;
+ }
+
+ /* Allocate the framebuffer's renderbuffers */
+ assert(!b->mesa_buffer.Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
+ assert(!b->mesa_buffer.Attachment[BUFFER_BACK_LEFT].Renderbuffer);
+
+ /* front renderbuffer */
+ b->frontxrb = xmesa_new_renderbuffer(NULL, 0, vis->mesa_visual.rgbMode);
+ _mesa_add_renderbuffer(&b->mesa_buffer, BUFFER_FRONT_LEFT,
+ &b->frontxrb->Base);
+
+ /* back renderbuffer */
+ if (vis->mesa_visual.doubleBufferMode) {
+ b->backxrb =xmesa_new_renderbuffer(NULL, 0, vis->mesa_visual.rgbMode);
+ _mesa_add_renderbuffer(&b->mesa_buffer, BUFFER_BACK_LEFT,
+ &b->backxrb->Base);
+ }
+
+ /* determine if we need software alpha planes */
+ if (vis->mesa_visual.alphaBits > 0
+ && vis->undithered_pf != PF_8A8B8G8R
+ && vis->undithered_pf != PF_8A8R8G8B) {
+ /* Visual has alpha, but pixel format doesn't support it.
+ * We'll use an alpha renderbuffer wrapper.
+ */
+ swAlpha = GL_TRUE;
+ }
+ else {
+ swAlpha = GL_FALSE;
+ }
+
+ _mesa_add_soft_renderbuffers(&b->mesa_buffer,
+ GL_FALSE, /* color */
+ vis->mesa_visual.haveDepthBuffer,
+ vis->mesa_visual.haveStencilBuffer,
+ vis->mesa_visual.haveAccumBuffer,
+ swAlpha,
+ vis->mesa_visual.numAuxBuffers > 0 );
+
+ /* insert into linked list */
+ b->Next = XMesaBufferList;
+ XMesaBufferList = b;
+ }
+ return b;
+}
+
+
+/*
+ * Find an XMesaBuffer by matching X display and colormap but NOT matching
+ * the notThis buffer.
+ */
+static XMesaBuffer find_xmesa_buffer(XMesaDisplay *dpy,
+ XMesaColormap cmap,
+ XMesaBuffer notThis)
+{
+ XMesaBuffer b;
+ for (b=XMesaBufferList; b; b=b->Next) {
+ if (b->display==dpy && b->cmap==cmap && b!=notThis) {
+ return b;
+ }
+ }
+ return NULL;
+}
+
+
+/*
+ * Free an XMesaBuffer, remove from linked list, perhaps free X colormap
+ * entries.
+ */
+static void free_xmesa_buffer(int client, XMesaBuffer buffer)
+{
+ XMesaBuffer prev = NULL, b;
+ (void) client;
+ for (b=XMesaBufferList; b; b=b->Next) {
+ if (b==buffer) {
+ /* unlink bufer from list */
+ if (prev)
+ prev->Next = buffer->Next;
+ else
+ XMesaBufferList = buffer->Next;
+ /* Check to free X colors */
+ if (buffer->num_alloced>0) {
+ /* If no other buffer uses this X colormap then free the colors. */
+ if (!find_xmesa_buffer(buffer->display, buffer->cmap, buffer)) {
+#ifdef XFree86Server
+ (void)FreeColors(buffer->cmap, client,
+ buffer->num_alloced, buffer->alloced_colors,
+ 0);
+#else
+ XFreeColors(buffer->display, buffer->cmap,
+ buffer->alloced_colors, buffer->num_alloced, 0);
+#endif
+ }
+ }
+
+ _mesa_free_framebuffer_data(&buffer->mesa_buffer);
+ _mesa_free(buffer);
+
+ return;
+ }
+ /* continue search */
+ prev = b;
+ }
+ /* buffer not found in XMesaBufferList */
+ _mesa_problem(NULL,"free_xmesa_buffer() - buffer not found\n");
+}
+
+
+/* Copy X color table stuff from one XMesaBuffer to another. */
+static void copy_colortable_info(XMesaBuffer dst, const XMesaBuffer src)
+{
+ MEMCPY(dst->color_table, src->color_table, sizeof(src->color_table));
+ MEMCPY(dst->pixel_to_r, src->pixel_to_r, sizeof(src->pixel_to_r));
+ MEMCPY(dst->pixel_to_g, src->pixel_to_g, sizeof(src->pixel_to_g));
+ MEMCPY(dst->pixel_to_b, src->pixel_to_b, sizeof(src->pixel_to_b));
+ dst->num_alloced = src->num_alloced;
+ MEMCPY(dst->alloced_colors, src->alloced_colors,
+ sizeof(src->alloced_colors));
+}
+
+
+
+/**********************************************************************/
+/***** Misc Private Functions *****/
+/**********************************************************************/
+
+
+/*
+ * Return number of bits set in n.
+ */
+static int bitcount( unsigned long n )
+{
+ int bits;
+ for (bits=0; n>0; n=n>>1) {
+ if (n&1) {
+ bits++;
+ }
+ }
+ return bits;
+}
+
+
+
+/**
+ * Allocate a shared memory XImage back buffer for the given XMesaBuffer.
+ * Return: GL_TRUE if success, GL_FALSE if error
+ */
+#ifndef XFree86Server
+static GLboolean
+alloc_shm_back_buffer(XMesaBuffer b, GLuint width, GLuint height)
+{
+#ifdef USE_XSHM
+ /*
+ * We have to do a _lot_ of error checking here to be sure we can
+ * really use the XSHM extension. It seems different servers trigger
+ * errors at different points if the extension won't work. Therefore
+ * we have to be very careful...
+ */
+ GC gc;
+ int (*old_handler)( XMesaDisplay *, XErrorEvent * );
+
+ if (width == 0 || height == 0) {
+ /* this will be true the first time we're called on 'b' */
+ return GL_FALSE;
+ }
+
+ b->backxrb->ximage = XShmCreateImage(b->xm_visual->display,
+ b->xm_visual->visinfo->visual,
+ b->xm_visual->visinfo->depth,
+ ZPixmap, NULL, &b->shminfo,
+ width, height);
+ if (b->backxrb->ximage == NULL) {
+ _mesa_warning(NULL, "alloc_back_buffer: Shared memory error (XShmCreateImage), disabling.");
+ b->shm = 0;
+ return GL_FALSE;
+ }
+
+ b->shminfo.shmid = shmget( IPC_PRIVATE, b->backxrb->ximage->bytes_per_line
+ * b->backxrb->ximage->height, IPC_CREAT|0777 );
+ if (b->shminfo.shmid < 0) {
+ _mesa_warning(NULL, "shmget failed while allocating back buffer");
+ XDestroyImage( b->backxrb->ximage );
+ b->backxrb->ximage = NULL;
+ _mesa_warning(NULL, "alloc_back_buffer: Shared memory error (shmget), disabling.");
+ b->shm = 0;
+ return GL_FALSE;
+ }
+
+ b->shminfo.shmaddr = b->backxrb->ximage->data
+ = (char*)shmat( b->shminfo.shmid, 0, 0 );
+ if (b->shminfo.shmaddr == (char *) -1) {
+ _mesa_warning(NULL, "shmat() failed while allocating back buffer");
+ XDestroyImage( b->backxrb->ximage );
+ shmctl( b->shminfo.shmid, IPC_RMID, 0 );
+ b->backxrb->ximage = NULL;
+ _mesa_warning(NULL, "alloc_back_buffer: Shared memory error (shmat), disabling.");
+ b->shm = 0;
+ return GL_FALSE;
+ }
+
+ b->shminfo.readOnly = False;
+ mesaXErrorFlag = 0;
+ old_handler = XSetErrorHandler( mesaHandleXError );
+ /* This may trigger the X protocol error we're ready to catch: */
+ XShmAttach( b->xm_visual->display, &b->shminfo );
+ XSync( b->xm_visual->display, False );
+
+ if (mesaXErrorFlag) {
+ /* we are on a remote display, this error is normal, don't print it */
+ XFlush( b->xm_visual->display );
+ mesaXErrorFlag = 0;
+ XDestroyImage( b->backxrb->ximage );
+ shmdt( b->shminfo.shmaddr );
+ shmctl( b->shminfo.shmid, IPC_RMID, 0 );
+ b->backxrb->ximage = NULL;
+ b->shm = 0;
+ (void) XSetErrorHandler( old_handler );
+ return GL_FALSE;
+ }
+
+ shmctl( b->shminfo.shmid, IPC_RMID, 0 ); /* nobody else needs it */
+
+ /* Finally, try an XShmPutImage to be really sure the extension works */
+ gc = XCreateGC( b->xm_visual->display, b->frontxrb->drawable, 0, NULL );
+ XShmPutImage( b->xm_visual->display, b->frontxrb->drawable, gc,
+ b->backxrb->ximage, 0, 0, 0, 0, 1, 1 /*one pixel*/, False );
+ XSync( b->xm_visual->display, False );
+ XFreeGC( b->xm_visual->display, gc );
+ (void) XSetErrorHandler( old_handler );
+ if (mesaXErrorFlag) {
+ XFlush( b->xm_visual->display );
+ mesaXErrorFlag = 0;
+ XDestroyImage( b->backxrb->ximage );
+ shmdt( b->shminfo.shmaddr );
+ shmctl( b->shminfo.shmid, IPC_RMID, 0 );
+ b->backxrb->ximage = NULL;
+ b->shm = 0;
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+#else
+ /* Can't compile XSHM support */
+ return GL_FALSE;
+#endif
+}
+#endif
+
+
+
+
+/*
+ * Setup an off-screen pixmap or Ximage to use as the back buffer.
+ * Input: b - the X/Mesa buffer
+ */
+void
+xmesa_alloc_back_buffer( XMesaBuffer b, GLuint width, GLuint height )
+{
+ if (width == 0 || height == 0)
+ return;
+
+ if (b->db_state == BACK_XIMAGE) {
+ /* Deallocate the old backxrb->ximage, if any */
+ if (b->backxrb->ximage) {
+#if defined(USE_XSHM) && !defined(XFree86Server)
+ if (b->shm) {
+ XShmDetach( b->xm_visual->display, &b->shminfo );
+ XDestroyImage( b->backxrb->ximage );
+ shmdt( b->shminfo.shmaddr );
+ }
+ else
+#endif
+ XMesaDestroyImage( b->backxrb->ximage );
+ b->backxrb->ximage = NULL;
+ }
+
+ /* Allocate new back buffer */
+#ifdef XFree86Server
+ {
+ /* Allocate a regular XImage for the back buffer. */
+ b->backxrb->ximage = XMesaCreateImage(b->xm_visual->BitsPerPixel,
+ width, height, NULL);
+#else
+ if (b->shm == 0 || !alloc_shm_back_buffer(b, width, height)) {
+ /* Allocate a regular XImage for the back buffer. */
+ b->backxrb->ximage = XCreateImage( b->xm_visual->display,
+ b->xm_visual->visinfo->visual,
+ GET_VISUAL_DEPTH(b->xm_visual),
+ ZPixmap, 0, /* format, offset */
+ NULL,
+ width, height,
+ 8, 0 ); /* pad, bytes_per_line */
+#endif
+ if (!b->backxrb->ximage) {
+ _mesa_warning(NULL, "alloc_back_buffer: XCreateImage failed.");
+ }
+ b->backxrb->ximage->data = (char *) MALLOC( b->backxrb->ximage->height
+ * b->backxrb->ximage->bytes_per_line );
+ if (!b->backxrb->ximage->data) {
+ _mesa_warning(NULL, "alloc_back_buffer: MALLOC failed.");
+ XMesaDestroyImage( b->backxrb->ximage );
+ b->backxrb->ximage = NULL;
+ }
+ /* this call just updates the width/origin fields in the xrb */
+ b->backxrb->Base.AllocStorage(NULL, &b->backxrb->Base,
+ b->backxrb->Base.InternalFormat,
+ b->backxrb->ximage->width,
+ b->backxrb->ximage->height);
+ }
+ b->backxrb->pixmap = None;
+ }
+ else if (b->db_state==BACK_PIXMAP) {
+ if (!width)
+ width = 1;
+ if (!height)
+ height = 1;
+
+ /* Free the old back pixmap */
+ if (b->backxrb->pixmap) {
+ XMesaFreePixmap( b->xm_visual->display, b->backxrb->pixmap );
+ }
+ /* Allocate new back pixmap */
+ b->backxrb->pixmap = XMesaCreatePixmap( b->xm_visual->display,
+ b->frontxrb->drawable,
+ width, height,
+ GET_VISUAL_DEPTH(b->xm_visual) );
+ b->backxrb->ximage = NULL;
+ }
+}
+
+
+
+/*
+ * A replacement for XAllocColor. This function should never
+ * fail to allocate a color. When XAllocColor fails, we return
+ * the nearest matching color. If we have to allocate many colors
+ * this function isn't too efficient; the XQueryColors() could be
+ * done just once.
+ * Written by Michael Pichler, Brian Paul, Mark Kilgard
+ * Input: dpy - X display
+ * cmap - X colormap
+ * cmapSize - size of colormap
+ * In/Out: color - the XColor struct
+ * Output: exact - 1=exact color match, 0=closest match
+ * alloced - 1=XAlloc worked, 0=XAlloc failed
+ */
+static void
+noFaultXAllocColor( int client,
+ XMesaDisplay *dpy,
+ XMesaColormap cmap,
+ int cmapSize,
+ XMesaColor *color,
+ int *exact, int *alloced )
+{
+#ifdef XFree86Server
+ Pixel *ppixIn;
+ xrgb *ctable;
+#else
+ /* we'll try to cache ctable for better remote display performance */
+ static Display *prevDisplay = NULL;
+ static XMesaColormap prevCmap = 0;
+ static int prevCmapSize = 0;
+ static XMesaColor *ctable = NULL;
+#endif
+ XMesaColor subColor;
+ int i, bestmatch;
+ double mindist; /* 3*2^16^2 exceeds long int precision. */
+
+ (void) client;
+
+ /* First try just using XAllocColor. */
+#ifdef XFree86Server
+ if (AllocColor(cmap,
+ &color->red, &color->green, &color->blue,
+ &color->pixel,
+ client) == Success) {
+#else
+ if (XAllocColor(dpy, cmap, color)) {
+#endif
+ *exact = 1;
+ *alloced = 1;
+ return;
+ }
+
+ /* Alloc failed, search for closest match */
+
+ /* Retrieve color table entries. */
+ /* XXX alloca candidate. */
+#ifdef XFree86Server
+ ppixIn = (Pixel *) MALLOC(cmapSize * sizeof(Pixel));
+ ctable = (xrgb *) MALLOC(cmapSize * sizeof(xrgb));
+ for (i = 0; i < cmapSize; i++) {
+ ppixIn[i] = i;
+ }
+ QueryColors(cmap, cmapSize, ppixIn, ctable);
+#else
+ if (prevDisplay != dpy || prevCmap != cmap
+ || prevCmapSize != cmapSize || !ctable) {
+ /* free previously cached color table */
+ if (ctable)
+ _mesa_free(ctable);
+ /* Get the color table from X */
+ ctable = (XMesaColor *) MALLOC(cmapSize * sizeof(XMesaColor));
+ assert(ctable);
+ for (i = 0; i < cmapSize; i++) {
+ ctable[i].pixel = i;
+ }
+ XQueryColors(dpy, cmap, ctable, cmapSize);
+ prevDisplay = dpy;
+ prevCmap = cmap;
+ prevCmapSize = cmapSize;
+ }
+#endif
+
+ /* Find best match. */
+ bestmatch = -1;
+ mindist = 0.0;
+ for (i = 0; i < cmapSize; i++) {
+ double dr = 0.30 * ((double) color->red - (double) ctable[i].red);
+ double dg = 0.59 * ((double) color->green - (double) ctable[i].green);
+ double db = 0.11 * ((double) color->blue - (double) ctable[i].blue);
+ double dist = dr * dr + dg * dg + db * db;
+ if (bestmatch < 0 || dist < mindist) {
+ bestmatch = i;
+ mindist = dist;
+ }
+ }
+
+ /* Return result. */
+ subColor.red = ctable[bestmatch].red;
+ subColor.green = ctable[bestmatch].green;
+ subColor.blue = ctable[bestmatch].blue;
+ /* Try to allocate the closest match color. This should only
+ * fail if the cell is read/write. Otherwise, we're incrementing
+ * the cell's reference count.
+ */
+#ifdef XFree86Server
+ if (AllocColor(cmap,
+ &subColor.red, &subColor.green, &subColor.blue,
+ &subColor.pixel,
+ client) == Success) {
+#else
+ if (XAllocColor(dpy, cmap, &subColor)) {
+#endif
+ *alloced = 1;
+ }
+ else {
+ /* do this to work around a problem reported by Frank Ortega */
+ subColor.pixel = (unsigned long) bestmatch;
+ subColor.red = ctable[bestmatch].red;
+ subColor.green = ctable[bestmatch].green;
+ subColor.blue = ctable[bestmatch].blue;
+ subColor.flags = DoRed | DoGreen | DoBlue;
+ *alloced = 0;
+ }
+#ifdef XFree86Server
+ _mesa_free(ppixIn);
+ _mesa_free(ctable);
+#else
+ /* don't free table, save it for next time */
+#endif
+
+ *color = subColor;
+ *exact = 0;
+}
+
+
+
+
+/*
+ * Do setup for PF_GRAYSCALE pixel format.
+ * Note that buffer may be NULL.
+ */
+static GLboolean setup_grayscale( int client, XMesaVisual v,
+ XMesaBuffer buffer, XMesaColormap cmap )
+{
+ if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) {
+ return GL_FALSE;
+ }
+
+ if (buffer) {
+ XMesaBuffer prevBuffer;
+
+ if (!cmap) {
+ return GL_FALSE;
+ }
+
+ prevBuffer = find_xmesa_buffer(v->display, cmap, buffer);
+ if (prevBuffer &&
+ (buffer->xm_visual->mesa_visual.rgbMode ==
+ prevBuffer->xm_visual->mesa_visual.rgbMode)) {
+ /* Copy colormap stuff from previous XMesaBuffer which uses same
+ * X colormap. Do this to avoid time spent in noFaultXAllocColor.
+ */
+ copy_colortable_info(buffer, prevBuffer);
+ }
+ else {
+ /* Allocate 256 shades of gray */
+ int gray;
+ int colorsfailed = 0;
+ for (gray=0;gray<256;gray++) {
+ GLint r = gamma_adjust( v->RedGamma, gray, 255 );
+ GLint g = gamma_adjust( v->GreenGamma, gray, 255 );
+ GLint b = gamma_adjust( v->BlueGamma, gray, 255 );
+ int exact, alloced;
+ XMesaColor xcol;
+ xcol.red = (r << 8) | r;
+ xcol.green = (g << 8) | g;
+ xcol.blue = (b << 8) | b;
+ noFaultXAllocColor( client, v->display,
+ cmap, GET_COLORMAP_SIZE(v),
+ &xcol, &exact, &alloced );
+ if (!exact) {
+ colorsfailed++;
+ }
+ if (alloced) {
+ assert(buffer->num_alloced<256);
+ buffer->alloced_colors[buffer->num_alloced] = xcol.pixel;
+ buffer->num_alloced++;
+ }
+
+ /*OLD
+ assert(gray < 576);
+ buffer->color_table[gray*3+0] = xcol.pixel;
+ buffer->color_table[gray*3+1] = xcol.pixel;
+ buffer->color_table[gray*3+2] = xcol.pixel;
+ assert(xcol.pixel < 65536);
+ buffer->pixel_to_r[xcol.pixel] = gray * 30 / 100;
+ buffer->pixel_to_g[xcol.pixel] = gray * 59 / 100;
+ buffer->pixel_to_b[xcol.pixel] = gray * 11 / 100;
+ */
+ buffer->color_table[gray] = xcol.pixel;
+ assert(xcol.pixel < 65536);
+ buffer->pixel_to_r[xcol.pixel] = gray;
+ buffer->pixel_to_g[xcol.pixel] = gray;
+ buffer->pixel_to_b[xcol.pixel] = gray;
+ }
+
+ if (colorsfailed && _mesa_getenv("MESA_DEBUG")) {
+ _mesa_warning(NULL,
+ "Note: %d out of 256 needed colors do not match exactly.\n",
+ colorsfailed );
+ }
+ }
+ }
+
+ v->dithered_pf = PF_Grayscale;
+ v->undithered_pf = PF_Grayscale;
+ return GL_TRUE;
+}
+
+
+
+/*
+ * Setup RGB rendering for a window with a PseudoColor, StaticColor,
+ * or 8-bit TrueColor visual visual. We try to allocate a palette of 225
+ * colors (5 red, 9 green, 5 blue) and dither to approximate a 24-bit RGB
+ * color. While this function was originally designed just for 8-bit
+ * visuals, it has also proven to work from 4-bit up to 16-bit visuals.
+ * Dithering code contributed by Bob Mercier.
+ */
+static GLboolean setup_dithered_color( int client, XMesaVisual v,
+ XMesaBuffer buffer, XMesaColormap cmap )
+{
+ if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) {
+ return GL_FALSE;
+ }
+
+ if (buffer) {
+ XMesaBuffer prevBuffer;
+
+ if (!cmap) {
+ return GL_FALSE;
+ }
+
+ prevBuffer = find_xmesa_buffer(v->display, cmap, buffer);
+ if (prevBuffer &&
+ (buffer->xm_visual->mesa_visual.rgbMode ==
+ prevBuffer->xm_visual->mesa_visual.rgbMode)) {
+ /* Copy colormap stuff from previous, matching XMesaBuffer.
+ * Do this to avoid time spent in noFaultXAllocColor.
+ */
+ copy_colortable_info(buffer, prevBuffer);
+ }
+ else {
+ /* Allocate X colors and initialize color_table[], red_table[], etc */
+ int r, g, b, i;
+ int colorsfailed = 0;
+ for (r = 0; r < DITH_R; r++) {
+ for (g = 0; g < DITH_G; g++) {
+ for (b = 0; b < DITH_B; b++) {
+ XMesaColor xcol;
+ int exact, alloced;
+ xcol.red =gamma_adjust(v->RedGamma, r*65535/(DITH_R-1),65535);
+ xcol.green=gamma_adjust(v->GreenGamma, g*65535/(DITH_G-1),65535);
+ xcol.blue =gamma_adjust(v->BlueGamma, b*65535/(DITH_B-1),65535);
+ noFaultXAllocColor( client, v->display,
+ cmap, GET_COLORMAP_SIZE(v),
+ &xcol, &exact, &alloced );
+ if (!exact) {
+ colorsfailed++;
+ }
+ if (alloced) {
+ assert(buffer->num_alloced<256);
+ buffer->alloced_colors[buffer->num_alloced] = xcol.pixel;
+ buffer->num_alloced++;
+ }
+ i = DITH_MIX( r, g, b );
+ assert(i < 576);
+ buffer->color_table[i] = xcol.pixel;
+ assert(xcol.pixel < 65536);
+ buffer->pixel_to_r[xcol.pixel] = r * 255 / (DITH_R-1);
+ buffer->pixel_to_g[xcol.pixel] = g * 255 / (DITH_G-1);
+ buffer->pixel_to_b[xcol.pixel] = b * 255 / (DITH_B-1);
+ }
+ }
+ }
+
+ if (colorsfailed && _mesa_getenv("MESA_DEBUG")) {
+ _mesa_warning(NULL,
+ "Note: %d out of %d needed colors do not match exactly.\n",
+ colorsfailed, DITH_R * DITH_G * DITH_B );
+ }
+ }
+ }
+
+ v->dithered_pf = PF_Dither;
+ v->undithered_pf = PF_Lookup;
+ return GL_TRUE;
+}
+
+
+/*
+ * Setup for Hewlett Packard Color Recovery 8-bit TrueColor mode.
+ * HPCR simulates 24-bit color fidelity with an 8-bit frame buffer.
+ * Special dithering tables have to be initialized.
+ */
+static void setup_8bit_hpcr( XMesaVisual v )
+{
+ /* HP Color Recovery contributed by: Alex De Bruyn (ad@lms.be)
+ * To work properly, the atom _HP_RGB_SMOOTH_MAP_LIST must be defined
+ * on the root window AND the colormap obtainable by XGetRGBColormaps
+ * for that atom must be set on the window. (see also tkInitWindow)
+ * If that colormap is not set, the output will look stripy.
+ */
+
+ /* Setup color tables with gamma correction */
+ int i;
+ double g;
+
+ g = 1.0 / v->RedGamma;
+ for (i=0; i<256; i++) {
+ GLint red = IROUND_POS(255.0 * _mesa_pow( hpcr_rgbTbl[0][i]/255.0, g ));
+ v->hpcr_rgbTbl[0][i] = CLAMP( red, 16, 239 );
+ }
+
+ g = 1.0 / v->GreenGamma;
+ for (i=0; i<256; i++) {
+ GLint green = IROUND_POS(255.0 * _mesa_pow( hpcr_rgbTbl[1][i]/255.0, g ));
+ v->hpcr_rgbTbl[1][i] = CLAMP( green, 16, 239 );
+ }
+
+ g = 1.0 / v->BlueGamma;
+ for (i=0; i<256; i++) {
+ GLint blue = IROUND_POS(255.0 * _mesa_pow( hpcr_rgbTbl[2][i]/255.0, g ));
+ v->hpcr_rgbTbl[2][i] = CLAMP( blue, 32, 223 );
+ }
+ v->undithered_pf = PF_HPCR; /* can't really disable dithering for now */
+ v->dithered_pf = PF_HPCR;
+
+ /* which method should I use to clear */
+ /* GL_FALSE: keep the ordinary method */
+ /* GL_TRUE : clear with dither pattern */
+ v->hpcr_clear_flag = _mesa_getenv("MESA_HPCR_CLEAR") ? GL_TRUE : GL_FALSE;
+
+ if (v->hpcr_clear_flag) {
+ v->hpcr_clear_pixmap = XMesaCreatePixmap(v->display,
+ DefaultRootWindow(v->display),
+ 16, 2, 8);
+#ifndef XFree86Server
+ v->hpcr_clear_ximage = XGetImage(v->display, v->hpcr_clear_pixmap,
+ 0, 0, 16, 2, AllPlanes, ZPixmap);
+#endif
+ }
+}
+
+
+/*
+ * Setup RGB rendering for a window with a True/DirectColor visual.
+ */
+static void setup_truecolor( XMesaVisual v, XMesaBuffer buffer,
+ XMesaColormap cmap )
+{
+ unsigned long rmask, gmask, bmask;
+ (void) buffer;
+ (void) cmap;
+
+ /* Compute red multiplier (mask) and bit shift */
+ v->rshift = 0;
+ rmask = GET_REDMASK(v);
+ while ((rmask & 1)==0) {
+ v->rshift++;
+ rmask = rmask >> 1;
+ }
+
+ /* Compute green multiplier (mask) and bit shift */
+ v->gshift = 0;
+ gmask = GET_GREENMASK(v);
+ while ((gmask & 1)==0) {
+ v->gshift++;
+ gmask = gmask >> 1;
+ }
+
+ /* Compute blue multiplier (mask) and bit shift */
+ v->bshift = 0;
+ bmask = GET_BLUEMASK(v);
+ while ((bmask & 1)==0) {
+ v->bshift++;
+ bmask = bmask >> 1;
+ }
+
+ /*
+ * Compute component-to-pixel lookup tables and dithering kernel
+ */
+ {
+ static GLubyte kernel[16] = {
+ 0*16, 8*16, 2*16, 10*16,
+ 12*16, 4*16, 14*16, 6*16,
+ 3*16, 11*16, 1*16, 9*16,
+ 15*16, 7*16, 13*16, 5*16,
+ };
+ GLint rBits = bitcount(rmask);
+ GLint gBits = bitcount(gmask);
+ GLint bBits = bitcount(bmask);
+ GLint maxBits;
+ GLuint i;
+
+ /* convert pixel components in [0,_mask] to RGB values in [0,255] */
+ for (i=0; i<=rmask; i++)
+ v->PixelToR[i] = (unsigned char) ((i * 255) / rmask);
+ for (i=0; i<=gmask; i++)
+ v->PixelToG[i] = (unsigned char) ((i * 255) / gmask);
+ for (i=0; i<=bmask; i++)
+ v->PixelToB[i] = (unsigned char) ((i * 255) / bmask);
+
+ /* convert RGB values from [0,255] to pixel components */
+
+ for (i=0;i<256;i++) {
+ GLint r = gamma_adjust(v->RedGamma, i, 255);
+ GLint g = gamma_adjust(v->GreenGamma, i, 255);
+ GLint b = gamma_adjust(v->BlueGamma, i, 255);
+ v->RtoPixel[i] = (r >> (8-rBits)) << v->rshift;
+ v->GtoPixel[i] = (g >> (8-gBits)) << v->gshift;
+ v->BtoPixel[i] = (b >> (8-bBits)) << v->bshift;
+ }
+ /* overflow protection */
+ for (i=256;i<512;i++) {
+ v->RtoPixel[i] = v->RtoPixel[255];
+ v->GtoPixel[i] = v->GtoPixel[255];
+ v->BtoPixel[i] = v->BtoPixel[255];
+ }
+
+ /* setup dithering kernel */
+ maxBits = rBits;
+ if (gBits > maxBits) maxBits = gBits;
+ if (bBits > maxBits) maxBits = bBits;
+ for (i=0;i<16;i++) {
+ v->Kernel[i] = kernel[i] >> maxBits;
+ }
+
+ v->undithered_pf = PF_Truecolor;
+ v->dithered_pf = (GET_VISUAL_DEPTH(v)<24) ? PF_Dither_True : PF_Truecolor;
+ }
+
+ /*
+ * Now check for TrueColor visuals which we can optimize.
+ */
+ if ( GET_REDMASK(v) ==0x0000ff
+ && GET_GREENMASK(v)==0x00ff00
+ && GET_BLUEMASK(v) ==0xff0000
+ && CHECK_BYTE_ORDER(v)
+ && v->BitsPerPixel==32
+ && sizeof(GLuint)==4
+ && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) {
+ /* common 32 bpp config used on SGI, Sun */
+ v->undithered_pf = v->dithered_pf = PF_8A8B8G8R;
+ }
+ else if (GET_REDMASK(v) ==0xff0000
+ && GET_GREENMASK(v)==0x00ff00
+ && GET_BLUEMASK(v) ==0x0000ff
+ && CHECK_BYTE_ORDER(v)
+ && v->BitsPerPixel==32
+ && sizeof(GLuint)==4
+ && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) {
+ /* common 32 bpp config used on Linux, HP, IBM */
+ if (GET_VISUAL_DEPTH(v)==32)
+ v->undithered_pf = v->dithered_pf = PF_8A8R8G8B;
+ else
+ v->undithered_pf = v->dithered_pf = PF_8R8G8B;
+ }
+ else if (GET_REDMASK(v) ==0xff0000
+ && GET_GREENMASK(v)==0x00ff00
+ && GET_BLUEMASK(v) ==0x0000ff
+ && CHECK_BYTE_ORDER(v)
+ && v->BitsPerPixel==24
+ && sizeof(GLuint)==4
+ && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) {
+ /* common packed 24 bpp config used on Linux */
+ v->undithered_pf = v->dithered_pf = PF_8R8G8B24;
+ }
+ else if (GET_REDMASK(v) ==0xf800
+ && GET_GREENMASK(v)==0x07e0
+ && GET_BLUEMASK(v) ==0x001f
+ && CHECK_BYTE_ORDER(v)
+ && v->BitsPerPixel==16
+ && sizeof(GLushort)==2
+ && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) {
+ /* 5-6-5 color weight on common PC VGA boards */
+ v->undithered_pf = PF_5R6G5B;
+ v->dithered_pf = PF_Dither_5R6G5B;
+ }
+ else if (GET_REDMASK(v) ==0xe0
+ && GET_GREENMASK(v)==0x1c
+ && GET_BLUEMASK(v) ==0x03
+ && CHECK_FOR_HPCR(v)) {
+ setup_8bit_hpcr( v );
+ }
+}
+
+
+
+/*
+ * Setup RGB rendering for a window with a monochrome visual.
+ */
+static void setup_monochrome( XMesaVisual v, XMesaBuffer b )
+{
+ (void) b;
+ v->dithered_pf = v->undithered_pf = PF_1Bit;
+ /* if black=1 then we must flip pixel values */
+ v->bitFlip = (GET_BLACK_PIXEL(v) != 0);
+}
+
+
+
+/*
+ * When a context is "made current" for the first time, we can finally
+ * finish initializing the context's visual and buffer information.
+ * Input: v - the XMesaVisual to initialize
+ * b - the XMesaBuffer to initialize (may be NULL)
+ * rgb_flag - TRUE = RGBA mode, FALSE = color index mode
+ * window - the window/pixmap we're rendering into
+ * cmap - the colormap associated with the window/pixmap
+ * Return: GL_TRUE=success, GL_FALSE=failure
+ */
+static GLboolean initialize_visual_and_buffer( int client,
+ XMesaVisual v,
+ XMesaBuffer b,
+ GLboolean rgb_flag,
+ XMesaDrawable window,
+ XMesaColormap cmap )
+{
+ struct xmesa_renderbuffer *front_xrb, *back_xrb;
+#ifndef XFree86Server
+ XGCValues gcvalues;
+#endif
+
+ if (b) {
+ assert(b->xm_visual == v);
+ }
+
+ if (b) {
+ front_xrb = b->frontxrb;
+ back_xrb = b->backxrb;
+ }
+ else {
+ front_xrb = back_xrb = NULL;
+ }
+
+ /* Save true bits/pixel */
+ v->BitsPerPixel = bits_per_pixel(v);
+ assert(v->BitsPerPixel > 0);
+
+
+ if (rgb_flag==GL_FALSE) {
+ /* COLOR-INDEXED WINDOW:
+ * Even if the visual is TrueColor or DirectColor we treat it as
+ * being color indexed. This is weird but might be useful to someone.
+ */
+ v->dithered_pf = v->undithered_pf = PF_Index;
+ v->mesa_visual.indexBits = GET_VISUAL_DEPTH(v);
+ }
+ else {
+ /* RGB WINDOW:
+ * We support RGB rendering into almost any kind of visual.
+ */
+ const int xclass = v->mesa_visual.visualType;
+ if (xclass==GLX_TRUE_COLOR || xclass==GLX_DIRECT_COLOR) {
+ setup_truecolor( v, b, cmap );
+ }
+ else if (xclass==GLX_STATIC_GRAY && GET_VISUAL_DEPTH(v)==1) {
+ setup_monochrome( v, b );
+ }
+ else if (xclass==GLX_GRAY_SCALE || xclass==GLX_STATIC_GRAY) {
+ if (!setup_grayscale( client, v, b, cmap )) {
+ return GL_FALSE;
+ }
+ }
+ else if ((xclass==GLX_PSEUDO_COLOR || xclass==GLX_STATIC_COLOR)
+ && GET_VISUAL_DEPTH(v)>=4 && GET_VISUAL_DEPTH(v)<=16) {
+ if (!setup_dithered_color( client, v, b, cmap )) {
+ return GL_FALSE;
+ }
+ }
+ else {
+ _mesa_warning(NULL, "XMesa: RGB mode rendering not supported in given visual.");
+ return GL_FALSE;
+ }
+ v->mesa_visual.indexBits = 0;
+
+ if (_mesa_getenv("MESA_NO_DITHER")) {
+ v->dithered_pf = v->undithered_pf;
+ }
+ }
+
+
+ /*
+ * If MESA_INFO env var is set print out some debugging info
+ * which can help Brian figure out what's going on when a user
+ * reports bugs.
+ */
+ if (_mesa_getenv("MESA_INFO")) {
+ _mesa_printf("X/Mesa visual = %p\n", (void *) v);
+ _mesa_printf("X/Mesa dithered pf = %u\n", v->dithered_pf);
+ _mesa_printf("X/Mesa undithered pf = %u\n", v->undithered_pf);
+ _mesa_printf("X/Mesa level = %d\n", v->mesa_visual.level);
+ _mesa_printf("X/Mesa depth = %d\n", GET_VISUAL_DEPTH(v));
+ _mesa_printf("X/Mesa bits per pixel = %d\n", v->BitsPerPixel);
+ }
+
+ if (b && window) {
+ /* Do window-specific initializations */
+
+ b->frontxrb->drawable = window;
+ b->frontxrb->pixmap = (XMesaPixmap) window;
+
+ /* Setup for single/double buffering */
+ if (v->mesa_visual.doubleBufferMode) {
+ /* Double buffered */
+#ifndef XFree86Server
+ b->shm = check_for_xshm( v->display );
+#endif
+ xmesa_alloc_back_buffer(b, b->mesa_buffer.Width, b->mesa_buffer.Height);
+ }
+
+ /* X11 graphics contexts */
+#ifdef XFree86Server
+ b->gc = CreateScratchGC(v->display, window->depth);
+#else
+ b->gc = XCreateGC( v->display, window, 0, NULL );
+#endif
+ XMesaSetFunction( v->display, b->gc, GXcopy );
+
+ /* cleargc - for glClear() */
+#ifdef XFree86Server
+ b->cleargc = CreateScratchGC(v->display, window->depth);
+#else
+ b->cleargc = XCreateGC( v->display, window, 0, NULL );
+#endif
+ XMesaSetFunction( v->display, b->cleargc, GXcopy );
+
+ /*
+ * Don't generate Graphics Expose/NoExpose events in swapbuffers().
+ * Patch contributed by Michael Pichler May 15, 1995.
+ */
+#ifdef XFree86Server
+ b->swapgc = CreateScratchGC(v->display, window->depth);
+ {
+ CARD32 v[1];
+ v[0] = FALSE;
+ dixChangeGC(NullClient, b->swapgc, GCGraphicsExposures, v, NULL);
+ }
+#else
+ gcvalues.graphics_exposures = False;
+ b->swapgc = XCreateGC( v->display, window,
+ GCGraphicsExposures, &gcvalues);
+#endif
+ XMesaSetFunction( v->display, b->swapgc, GXcopy );
+ /*
+ * Set fill style and tile pixmap once for all for HPCR stuff
+ * (instead of doing it each time in clear_color_HPCR_pixmap())
+ * Initialize whole stuff
+ * Patch contributed by Jacques Leroy March 8, 1998.
+ */
+ if (v->hpcr_clear_flag && back_xrb->pixmap) {
+ int i;
+ for (i=0; i<16; i++)
+ {
+ XMesaPutPixel(v->hpcr_clear_ximage, i, 0, 0);
+ XMesaPutPixel(v->hpcr_clear_ximage, i, 1, 0);
+ }
+ XMesaPutImage(b->display, (XMesaDrawable)v->hpcr_clear_pixmap,
+ b->cleargc, v->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2);
+ XMesaSetFillStyle( v->display, b->cleargc, FillTiled);
+ XMesaSetTile( v->display, b->cleargc, v->hpcr_clear_pixmap );
+ }
+
+ /* Initialize the row buffer XImage for use in write_color_span() */
+#ifdef XFree86Server
+ b->rowimage = XMesaCreateImage(GET_VISUAL_DEPTH(v), MAX_WIDTH, 1,
+ (char *)MALLOC(MAX_WIDTH*4));
+#else
+ b->rowimage = XCreateImage( v->display,
+ v->visinfo->visual,
+ v->visinfo->depth,
+ ZPixmap, 0, /*format, offset*/
+ (char*) MALLOC(MAX_WIDTH*4), /*data*/
+ MAX_WIDTH, 1, /*width, height*/
+ 32, /*bitmap_pad*/
+ 0 /*bytes_per_line*/ );
+#endif
+ if (!b->rowimage)
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+
+/*
+ * Convert an RGBA color to a pixel value.
+ */
+unsigned long
+xmesa_color_to_pixel(GLcontext *ctx,
+ GLubyte r, GLubyte g, GLubyte b, GLubyte a,
+ GLuint pixelFormat)
+{
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ switch (pixelFormat) {
+ case PF_Index:
+ return 0;
+ case PF_Truecolor:
+ {
+ unsigned long p;
+ PACK_TRUECOLOR( p, r, g, b );
+ return p;
+ }
+ case PF_8A8B8G8R:
+ return PACK_8A8B8G8R( r, g, b, a );
+ case PF_8A8R8G8B:
+ return PACK_8A8R8G8B( r, g, b, a );
+ case PF_8R8G8B:
+ /* fall through */
+ case PF_8R8G8B24:
+ return PACK_8R8G8B( r, g, b );
+ case PF_5R6G5B:
+ return PACK_5R6G5B( r, g, b );
+ case PF_Dither:
+ {
+ DITHER_SETUP;
+ return DITHER( 1, 0, r, g, b );
+ }
+ case PF_1Bit:
+ /* 382 = (3*255)/2 */
+ return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip;
+ case PF_HPCR:
+ return DITHER_HPCR(1, 1, r, g, b);
+ case PF_Lookup:
+ {
+ LOOKUP_SETUP;
+ return LOOKUP( r, g, b );
+ }
+ case PF_Grayscale:
+ return GRAY_RGB( r, g, b );
+ case PF_Dither_True:
+ /* fall through */
+ case PF_Dither_5R6G5B:
+ {
+ unsigned long p;
+ PACK_TRUEDITHER(p, 1, 0, r, g, b);
+ return p;
+ }
+ default:
+ _mesa_problem(ctx, "Bad pixel format in xmesa_color_to_pixel");
+ }
+ return 0;
+}
+
+
+#define NUM_VISUAL_TYPES 6
+
+/**
+ * Convert an X visual type to a GLX visual type.
+ *
+ * \param visualType X visual type (i.e., \c TrueColor, \c StaticGray, etc.)
+ * to be converted.
+ * \return If \c visualType is a valid X visual type, a GLX visual type will
+ * be returned. Otherwise \c GLX_NONE will be returned.
+ *
+ * \note
+ * This code was lifted directly from lib/GL/glx/glcontextmodes.c in the
+ * DRI CVS tree.
+ */
+static GLint
+xmesa_convert_from_x_visual_type( int visualType )
+{
+ static const int glx_visual_types[ NUM_VISUAL_TYPES ] = {
+ GLX_STATIC_GRAY, GLX_GRAY_SCALE,
+ GLX_STATIC_COLOR, GLX_PSEUDO_COLOR,
+ GLX_TRUE_COLOR, GLX_DIRECT_COLOR
+ };
+
+ return ( (unsigned) visualType < NUM_VISUAL_TYPES )
+ ? glx_visual_types[ visualType ] : GLX_NONE;
+}
+
+
+/**********************************************************************/
+/***** Public Functions *****/
+/**********************************************************************/
+
+
+/*
+ * Create a new X/Mesa visual.
+ * Input: display - X11 display
+ * visinfo - an XVisualInfo pointer
+ * rgb_flag - GL_TRUE = RGB mode,
+ * GL_FALSE = color index mode
+ * alpha_flag - alpha buffer requested?
+ * db_flag - GL_TRUE = double-buffered,
+ * GL_FALSE = single buffered
+ * stereo_flag - stereo visual?
+ * ximage_flag - GL_TRUE = use an XImage for back buffer,
+ * GL_FALSE = use an off-screen pixmap for back buffer
+ * depth_size - requested bits/depth values, or zero
+ * stencil_size - requested bits/stencil values, or zero
+ * accum_red_size - requested bits/red accum values, or zero
+ * accum_green_size - requested bits/green accum values, or zero
+ * accum_blue_size - requested bits/blue accum values, or zero
+ * accum_alpha_size - requested bits/alpha accum values, or zero
+ * num_samples - number of samples/pixel if multisampling, or zero
+ * level - visual level, usually 0
+ * visualCaveat - ala the GLX extension, usually GLX_NONE
+ * Return; a new XMesaVisual or 0 if error.
+ */
+XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
+ XMesaVisualInfo visinfo,
+ GLboolean rgb_flag,
+ GLboolean alpha_flag,
+ GLboolean db_flag,
+ GLboolean stereo_flag,
+ GLboolean ximage_flag,
+ GLint depth_size,
+ GLint stencil_size,
+ GLint accum_red_size,
+ GLint accum_green_size,
+ GLint accum_blue_size,
+ GLint accum_alpha_size,
+ GLint num_samples,
+ GLint level,
+ GLint visualCaveat )
+{
+ char *gamma;
+ XMesaVisual v;
+ GLint red_bits, green_bits, blue_bits, alpha_bits;
+
+ /* For debugging only */
+ if (_mesa_getenv("MESA_XSYNC")) {
+ /* This makes debugging X easier.
+ * In your debugger, set a breakpoint on _XError to stop when an
+ * X protocol error is generated.
+ */
+#ifdef XFree86Server
+ /* NOT_NEEDED */
+#else
+ XSynchronize( display, 1 );
+#endif
+ }
+
+ v = (XMesaVisual) CALLOC_STRUCT(xmesa_visual);
+ if (!v) {
+ return NULL;
+ }
+
+ /*
+ * In the X server, NULL is passed in for the display. It will have
+ * to be set before using this visual. See XMesaSetVisualDisplay()
+ * below.
+ */
+ v->display = display;
+
+ /* Save a copy of the XVisualInfo struct because the user may X_mesa_free()
+ * the struct but we may need some of the information contained in it
+ * at a later time.
+ */
+#ifndef XFree86Server
+ v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo));
+ if(!v->visinfo) {
+ _mesa_free(v);
+ return NULL;
+ }
+ MEMCPY(v->visinfo, visinfo, sizeof(*visinfo));
+#endif
+
+ /* check for MESA_GAMMA environment variable */
+ gamma = _mesa_getenv("MESA_GAMMA");
+ if (gamma) {
+ v->RedGamma = v->GreenGamma = v->BlueGamma = 0.0;
+ sscanf( gamma, "%f %f %f", &v->RedGamma, &v->GreenGamma, &v->BlueGamma );
+ if (v->RedGamma<=0.0) v->RedGamma = 1.0;
+ if (v->GreenGamma<=0.0) v->GreenGamma = v->RedGamma;
+ if (v->BlueGamma<=0.0) v->BlueGamma = v->RedGamma;
+ }
+ else {
+ v->RedGamma = v->GreenGamma = v->BlueGamma = 1.0;
+ }
+
+ v->ximage_flag = ximage_flag;
+
+#ifdef XFree86Server
+ /* We could calculate these values by ourselves. nplanes is either the sum
+ * of the red, green, and blue bits or the number index bits.
+ * ColormapEntries is either (1U << index_bits) or
+ * (1U << max(redBits, greenBits, blueBits)).
+ */
+ v->nplanes = visinfo->nplanes;
+ v->ColormapEntries = visinfo->ColormapEntries;
+
+ v->mesa_visual.redMask = visinfo->redMask;
+ v->mesa_visual.greenMask = visinfo->greenMask;
+ v->mesa_visual.blueMask = visinfo->blueMask;
+ v->mesa_visual.visualID = visinfo->vid;
+ v->mesa_visual.screen = 0; /* FIXME: What should be done here? */
+#else
+ v->mesa_visual.redMask = visinfo->red_mask;
+ v->mesa_visual.greenMask = visinfo->green_mask;
+ v->mesa_visual.blueMask = visinfo->blue_mask;
+ v->mesa_visual.visualID = visinfo->visualid;
+ v->mesa_visual.screen = visinfo->screen;
+#endif
+
+#if defined(XFree86Server) || !(defined(__cplusplus) || defined(c_plusplus))
+ v->mesa_visual.visualType = xmesa_convert_from_x_visual_type(visinfo->class);
+#else
+ v->mesa_visual.visualType = xmesa_convert_from_x_visual_type(visinfo->c_class);
+#endif
+
+ v->mesa_visual.visualRating = visualCaveat;
+
+ (void) initialize_visual_and_buffer( 0, v, NULL, rgb_flag, 0, 0 );
+
+ {
+ const int xclass = v->mesa_visual.visualType;
+ if (xclass==GLX_TRUE_COLOR || xclass==GLX_DIRECT_COLOR) {
+ red_bits = bitcount(GET_REDMASK(v));
+ green_bits = bitcount(GET_GREENMASK(v));
+ blue_bits = bitcount(GET_BLUEMASK(v));
+ alpha_bits = 0;
+ }
+ else {
+ /* this is an approximation */
+ int depth;
+ depth = GET_VISUAL_DEPTH(v);
+ red_bits = depth / 3;
+ depth -= red_bits;
+ green_bits = depth / 2;
+ depth -= green_bits;
+ blue_bits = depth;
+ alpha_bits = 0;
+ assert( red_bits + green_bits + blue_bits == GET_VISUAL_DEPTH(v) );
+ }
+ }
+
+ if (alpha_flag && alpha_bits == 0)
+ alpha_bits = 8;
+
+ _mesa_initialize_visual( &v->mesa_visual,
+ rgb_flag, db_flag, stereo_flag,
+ red_bits, green_bits,
+ blue_bits, alpha_bits,
+ v->mesa_visual.indexBits,
+ depth_size,
+ stencil_size,
+ accum_red_size, accum_green_size,
+ accum_blue_size, accum_alpha_size,
+ 0 );
+
+ /* XXX minor hack */
+ v->mesa_visual.level = level;
+ return v;
+}
+
+
+void XMesaSetVisualDisplay( XMesaDisplay *dpy, XMesaVisual v )
+{
+ v->display = dpy;
+}
+
+
+void XMesaDestroyVisual( XMesaVisual v )
+{
+#ifndef XFree86Server
+ _mesa_free(v->visinfo);
+#endif
+ _mesa_free(v);
+}
+
+
+
+/**
+ * Create a new XMesaContext.
+ * \param v the XMesaVisual
+ * \param share_list another XMesaContext with which to share display
+ * lists or NULL if no sharing is wanted.
+ * \return an XMesaContext or NULL if error.
+ */
+XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
+{
+ static GLboolean firstTime = GL_TRUE;
+ XMesaContext c;
+ GLcontext *mesaCtx;
+ struct dd_function_table functions;
+ TNLcontext *tnl;
+
+ if (firstTime) {
+ _glthread_INIT_MUTEX(_xmesa_lock);
+ firstTime = GL_FALSE;
+ }
+
+ /* Note: the XMesaContext contains a Mesa GLcontext struct (inheritance) */
+ c = (XMesaContext) CALLOC_STRUCT(xmesa_context);
+ if (!c)
+ return NULL;
+
+ mesaCtx = &(c->mesa);
+
+ /* initialize with default driver functions, then plug in XMesa funcs */
+ _mesa_init_driver_functions(&functions);
+ xmesa_init_driver_functions(v, &functions);
+ if (!_mesa_initialize_context(mesaCtx, &v->mesa_visual,
+ share_list ? &(share_list->mesa) : (GLcontext *) NULL,
+ &functions, (void *) c)) {
+ _mesa_free(c);
+ return NULL;
+ }
+
+ _mesa_enable_sw_extensions(mesaCtx);
+ _mesa_enable_1_3_extensions(mesaCtx);
+ _mesa_enable_1_4_extensions(mesaCtx);
+ _mesa_enable_1_5_extensions(mesaCtx);
+ _mesa_enable_2_0_extensions(mesaCtx);
+#if SWTC
+ if (c->Mesa_DXTn) {
+ _mesa_enable_extension(c, "GL_EXT_texture_compression_s3tc");
+ _mesa_enable_extension(c, "GL_S3_s3tc");
+ }
+ _mesa_enable_extension(c, "GL_3DFX_texture_compression_FXT1");
+#endif
+
+ /* finish up xmesa context initializations */
+ c->swapbytes = CHECK_BYTE_ORDER(v) ? GL_FALSE : GL_TRUE;
+ c->xm_visual = v;
+ c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */
+ c->display = v->display;
+ c->pixelformat = v->dithered_pf; /* Dithering is enabled by default */
+
+ /* Initialize the software rasterizer and helper modules.
+ */
+ if (!_swrast_CreateContext( mesaCtx ) ||
+ !_ac_CreateContext( mesaCtx ) ||
+ !_tnl_CreateContext( mesaCtx ) ||
+ !_swsetup_CreateContext( mesaCtx )) {
+ _mesa_free_context_data(&c->mesa);
+ _mesa_free(c);
+ return NULL;
+ }
+
+ /* tnl setup */
+ tnl = TNL_CONTEXT(mesaCtx);
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+ /* swrast setup */
+ xmesa_register_swrast_functions( mesaCtx );
+ _swsetup_Wakeup(mesaCtx);
+
+ return c;
+}
+
+
+
+void XMesaDestroyContext( XMesaContext c )
+{
+ GLcontext *mesaCtx = &c->mesa;
+#ifdef FX
+ XMesaBuffer xmbuf = XMESA_BUFFER(mesaCtx->DrawBuffer);
+
+ if (xmbuf && xmbuf->FXctx)
+ fxMesaDestroyContext(xmbuf->FXctx);
+#endif
+ _swsetup_DestroyContext( mesaCtx );
+ _swrast_DestroyContext( mesaCtx );
+ _tnl_DestroyContext( mesaCtx );
+ _ac_DestroyContext( mesaCtx );
+ _mesa_free_context_data( mesaCtx );
+ _mesa_free( c );
+}
+
+
+
+/*
+ * XXX this isn't a public function! It's a hack for the 3Dfx driver.
+ * Create a new XMesaBuffer from an X window.
+ * Input: v - the XMesaVisual
+ * w - the window
+ * c - the context
+ * Return: new XMesaBuffer or NULL if error
+ */
+XMesaBuffer
+XMesaCreateWindowBuffer2(XMesaVisual v, XMesaWindow w, XMesaContext c)
+{
+#ifndef XFree86Server
+ XWindowAttributes attr;
+#endif
+#ifdef FX
+ char *fxEnvVar;
+#endif
+ int client = 0;
+ XMesaBuffer b;
+ XMesaColormap cmap;
+
+ assert(v);
+ (void) c;
+
+ /* Check that window depth matches visual depth */
+#ifdef XFree86Server
+ client = CLIENT_ID(((XMesaDrawable)w)->id);
+
+ if (GET_VISUAL_DEPTH(v) != ((XMesaDrawable)w)->depth) {
+ _mesa_warning(NULL, "XMesaCreateWindowBuffer: depth mismatch between visual (%d) and window (%d)!\n",
+ GET_VISUAL_DEPTH(v), ((XMesaDrawable) w)->depth);
+ return NULL;
+ }
+#else
+ XGetWindowAttributes( v->display, w, &attr );
+
+ if (GET_VISUAL_DEPTH(v) != attr.depth) {
+ _mesa_warning(NULL, "XMesaCreateWindowBuffer: depth mismatch between visual (%d) and window (%d)!\n",
+ GET_VISUAL_DEPTH(v), attr.depth);
+ return NULL;
+ }
+#endif
+
+ /* Find colormap */
+#ifdef XFree86Server
+ cmap = (ColormapPtr)LookupIDByType(wColormap(w), RT_COLORMAP);
+#else
+ if (attr.colormap) {
+ cmap = attr.colormap;
+ }
+ else {
+ _mesa_warning(NULL, "Window %u has no colormap!\n", (unsigned int) w);
+ /* this is weird, a window w/out a colormap!? */
+ /* OK, let's just allocate a new one and hope for the best */
+ cmap = XCreateColormap(v->display, w, attr.visual, AllocNone);
+ }
+#endif
+
+ b = alloc_xmesa_buffer(v, WINDOW, cmap);
+ if (!b) {
+ return NULL;
+ }
+
+ if (!initialize_visual_and_buffer( client, v, b, v->mesa_visual.rgbMode,
+ (XMesaDrawable)w, cmap )) {
+ free_xmesa_buffer(client, b);
+ return NULL;
+ }
+
+#ifdef FX
+ fxEnvVar = _mesa_getenv("MESA_GLX_FX");
+ if (fxEnvVar) {
+ if (fxEnvVar[0]!='d') {
+ int attribs[100];
+ int numAttribs = 0;
+ int hw;
+ if (v->mesa_visual.depthBits > 0) {
+ attribs[numAttribs++] = FXMESA_DEPTH_SIZE;
+ attribs[numAttribs++] = v->mesa_visual.depthBits;
+ }
+ if (v->mesa_visual.doubleBufferMode) {
+ attribs[numAttribs++] = FXMESA_DOUBLEBUFFER;
+ }
+ if (v->mesa_visual.accumRedBits > 0) {
+ attribs[numAttribs++] = FXMESA_ACCUM_SIZE;
+ attribs[numAttribs++] = v->mesa_visual.accumRedBits;
+ }
+ if (v->mesa_visual.stencilBits > 0) {
+ attribs[numAttribs++] = FXMESA_STENCIL_SIZE;
+ attribs[numAttribs++] = v->mesa_visual.stencilBits;
+ }
+ if (v->mesa_visual.alphaBits > 0) {
+ attribs[numAttribs++] = FXMESA_ALPHA_SIZE;
+ attribs[numAttribs++] = v->mesa_visual.alphaBits;
+ }
+ if (1) {
+ attribs[numAttribs++] = FXMESA_SHARE_CONTEXT;
+ attribs[numAttribs++] = (int) &(c->mesa);
+ }
+ attribs[numAttribs++] = FXMESA_NONE;
+
+ /* [dBorca] we should take an envvar for `fxMesaSelectCurrentBoard'!!! */
+ hw = fxMesaSelectCurrentBoard(0);
+
+ /* if these fail, there's a new bug somewhere */
+ ASSERT(b->mesa_buffer.Width > 0);
+ ASSERT(b->mesa_buffer.Height > 0);
+
+ if ((hw == GR_SSTTYPE_VOODOO) || (hw == GR_SSTTYPE_Voodoo2)) {
+ b->FXctx = fxMesaCreateBestContext(0, b->mesa_buffer.Width,
+ b->mesa_buffer.Height, attribs);
+ if ((v->undithered_pf!=PF_Index) && (b->backxrb->ximage)) {
+ b->FXisHackUsable = b->FXctx ? GL_TRUE : GL_FALSE;
+ if (b->FXctx && (fxEnvVar[0]=='w' || fxEnvVar[0]=='W')) {
+ b->FXwindowHack = GL_TRUE;
+ FX_grSstControl(GR_CONTROL_DEACTIVATE);
+ }
+ else {
+ b->FXwindowHack = GL_FALSE;
+ }
+ }
+ }
+ else {
+ if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W')
+ b->FXctx = fxMesaCreateContext(w, GR_RESOLUTION_NONE,
+ GR_REFRESH_75Hz, attribs);
+ else
+ b->FXctx = fxMesaCreateBestContext(0, b->mesa_buffer.Width,
+ b->mesa_buffer.Height, attribs);
+ b->FXisHackUsable = GL_FALSE;
+ b->FXwindowHack = GL_FALSE;
+ }
+ /*
+ fprintf(stderr,
+ "voodoo %d, wid %d height %d hack: usable %d active %d\n",
+ hw, b->mesa_buffer.Width, b->mesa_buffer.Height,
+ b->FXisHackUsable, b->FXwindowHack);
+ */
+ }
+ }
+ else {
+ _mesa_warning(NULL, "WARNING: This Mesa Library includes the Glide driver but\n");
+ _mesa_warning(NULL, " you have not defined the MESA_GLX_FX env. var.\n");
+ _mesa_warning(NULL, " (check the README.3DFX file for more information).\n\n");
+ _mesa_warning(NULL, " you can disable this message with a 'export MESA_GLX_FX=disable'.\n");
+ }
+#endif
+
+ return b;
+}
+
+
+XMesaBuffer
+XMesaCreateWindowBuffer(XMesaVisual v, XMesaWindow w)
+{
+ return XMesaCreateWindowBuffer2( v, w, NULL );
+}
+
+
+/**
+ * Create a new XMesaBuffer from an X pixmap.
+ *
+ * \param v the XMesaVisual
+ * \param p the pixmap
+ * \param cmap the colormap, may be 0 if using a \c GLX_TRUE_COLOR or
+ * \c GLX_DIRECT_COLOR visual for the pixmap
+ * \returns new XMesaBuffer or NULL if error
+ */
+XMesaBuffer
+XMesaCreatePixmapBuffer(XMesaVisual v, XMesaPixmap p, XMesaColormap cmap)
+{
+ int client = 0;
+ XMesaBuffer b;
+
+ assert(v);
+
+ b = alloc_xmesa_buffer(v, PIXMAP, cmap);
+ if (!b) {
+ return NULL;
+ }
+
+#ifdef XFree86Server
+ client = CLIENT_ID(((XMesaDrawable)p)->id);
+#endif
+
+ if (!initialize_visual_and_buffer(client, v, b, v->mesa_visual.rgbMode,
+ (XMesaDrawable)p, cmap)) {
+ free_xmesa_buffer(client, b);
+ return NULL;
+ }
+
+ return b;
+}
+
+
+
+XMesaBuffer
+XMesaCreatePBuffer(XMesaVisual v, XMesaColormap cmap,
+ unsigned int width, unsigned int height)
+{
+#ifdef XFree86Server
+ return 0;
+#else
+ int client = 0;
+ XMesaWindow root;
+ XMesaDrawable drawable; /* X Pixmap Drawable */
+ XMesaBuffer b;
+
+ b = alloc_xmesa_buffer(v, PBUFFER, cmap);
+ if (!b) {
+ return NULL;
+ }
+
+ /* allocate pixmap for front buffer */
+ root = RootWindow( v->display, v->visinfo->screen );
+ drawable = XCreatePixmap( v->display, root, width, height, v->visinfo->depth );
+
+ if (!initialize_visual_and_buffer(client, v, b, v->mesa_visual.rgbMode,
+ drawable, cmap)) {
+ free_xmesa_buffer(client, b);
+ return NULL;
+ }
+
+ return b;
+#endif
+}
+
+
+
+/*
+ * Deallocate an XMesaBuffer structure and all related info.
+ */
+void XMesaDestroyBuffer( XMesaBuffer b )
+{
+ int client = 0;
+
+#ifdef XFree86Server
+ if (b->frontxrb->drawable)
+ client = CLIENT_ID(b->frontxrb->drawable->id);
+#endif
+
+ if (b->gc) XMesaFreeGC( b->xm_visual->display, b->gc );
+ if (b->cleargc) XMesaFreeGC( b->xm_visual->display, b->cleargc );
+ if (b->swapgc) XMesaFreeGC( b->xm_visual->display, b->swapgc );
+
+ if (b->xm_visual->mesa_visual.doubleBufferMode)
+ {
+ if (b->backxrb->ximage) {
+#if defined(USE_XSHM) && !defined(XFree86Server)
+ if (b->shm) {
+ XShmDetach( b->xm_visual->display, &b->shminfo );
+ XDestroyImage( b->backxrb->ximage );
+ shmdt( b->shminfo.shmaddr );
+ }
+ else
+#endif
+ XMesaDestroyImage( b->backxrb->ximage );
+ }
+ if (b->backxrb->pixmap) {
+ XMesaFreePixmap( b->xm_visual->display,
+ (XMesaPixmap) b->backxrb->pixmap );
+ if (b->xm_visual->hpcr_clear_flag) {
+ XMesaFreePixmap( b->xm_visual->display,
+ b->xm_visual->hpcr_clear_pixmap );
+ XMesaDestroyImage( b->xm_visual->hpcr_clear_ximage );
+ }
+ }
+ }
+ if (b->rowimage) {
+ _mesa_free( b->rowimage->data );
+ b->rowimage->data = NULL;
+ XMesaDestroyImage( b->rowimage );
+ }
+
+ free_xmesa_buffer(client, b);
+}
+
+
+
+/*
+ * Bind buffer b to context c and make c the current rendering context.
+ */
+GLboolean XMesaMakeCurrent( XMesaContext c, XMesaBuffer b )
+{
+ return XMesaMakeCurrent2( c, b, b );
+}
+
+
+/*
+ * Bind buffer b to context c and make c the current rendering context.
+ */
+GLboolean XMesaMakeCurrent2( XMesaContext c, XMesaBuffer drawBuffer,
+ XMesaBuffer readBuffer )
+{
+ if (c) {
+ if (!drawBuffer || !readBuffer)
+ return GL_FALSE; /* must specify buffers! */
+
+#ifdef FX
+ if (drawBuffer->FXctx) {
+ fxMesaMakeCurrent(drawBuffer->FXctx);
+
+ c->xm_buffer = drawBuffer;
+
+ return GL_TRUE;
+ }
+#endif
+ if (&(c->mesa) == _mesa_get_current_context()
+ && c->mesa.DrawBuffer == &drawBuffer->mesa_buffer
+ && c->mesa.ReadBuffer == &readBuffer->mesa_buffer
+ && ((XMesaBuffer) c->mesa.DrawBuffer)->wasCurrent) {
+ /* same context and buffer, do nothing */
+ return GL_TRUE;
+ }
+
+ c->xm_buffer = drawBuffer;
+
+ _mesa_make_current(&(c->mesa),
+ &drawBuffer->mesa_buffer,
+ &readBuffer->mesa_buffer);
+
+ if (c->xm_visual->mesa_visual.rgbMode) {
+ /*
+ * Must recompute and set these pixel values because colormap
+ * can be different for different windows.
+ */
+ c->clearpixel = xmesa_color_to_pixel( &c->mesa,
+ c->clearcolor[0],
+ c->clearcolor[1],
+ c->clearcolor[2],
+ c->clearcolor[3],
+ c->xm_visual->undithered_pf);
+ XMesaSetForeground(c->display, drawBuffer->cleargc, c->clearpixel);
+ }
+
+ /* Solution to Stephane Rehel's problem with glXReleaseBuffersMESA(): */
+ drawBuffer->wasCurrent = GL_TRUE;
+ }
+ else {
+ /* Detach */
+ _mesa_make_current( NULL, NULL, NULL );
+ }
+ return GL_TRUE;
+}
+
+
+/*
+ * Unbind the context c from its buffer.
+ */
+GLboolean XMesaUnbindContext( XMesaContext c )
+{
+ /* A no-op for XFree86 integration purposes */
+ return GL_TRUE;
+}
+
+
+XMesaContext XMesaGetCurrentContext( void )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ if (ctx) {
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ return xmesa;
+ }
+ else {
+ return 0;
+ }
+}
+
+
+XMesaBuffer XMesaGetCurrentBuffer( void )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ if (ctx) {
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ return xmbuf;
+ }
+ else {
+ return 0;
+ }
+}
+
+
+/* New in Mesa 3.1 */
+XMesaBuffer XMesaGetCurrentReadBuffer( void )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ if (ctx) {
+ return (XMesaBuffer) (ctx->ReadBuffer);
+ }
+ else {
+ return 0;
+ }
+}
+
+
+GLboolean XMesaForceCurrent(XMesaContext c)
+{
+ if (c) {
+ if (&(c->mesa) != _mesa_get_current_context()) {
+ _mesa_make_current(&c->mesa, c->mesa.DrawBuffer, c->mesa.ReadBuffer);
+ }
+ }
+ else {
+ _mesa_make_current(NULL, NULL, NULL);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean XMesaLoseCurrent(XMesaContext c)
+{
+ (void) c;
+ _mesa_make_current(NULL, NULL, NULL);
+ return GL_TRUE;
+}
+
+
+/*
+ * Switch 3Dfx support hack between window and full-screen mode.
+ */
+GLboolean XMesaSetFXmode( GLint mode )
+{
+#ifdef FX
+ const char *fx = _mesa_getenv("MESA_GLX_FX");
+ if (fx && fx[0] != 'd') {
+ GET_CURRENT_CONTEXT(ctx);
+ GrHwConfiguration hw;
+ if (!FX_grSstQueryHardware(&hw)) {
+ /*fprintf(stderr, "!grSstQueryHardware\n");*/
+ return GL_FALSE;
+ }
+ if (hw.num_sst < 1) {
+ /*fprintf(stderr, "hw.num_sst < 1\n");*/
+ return GL_FALSE;
+ }
+ if (ctx) {
+ /* [dBorca] Hack alert:
+ * oh, this is sooo wrong: ctx above is
+ * really an fxMesaContext, not an XMesaContext
+ */
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ if (mode == XMESA_FX_WINDOW) {
+ if (xmbuf->FXisHackUsable) {
+ FX_grSstControl(GR_CONTROL_DEACTIVATE);
+ xmbuf->FXwindowHack = GL_TRUE;
+ return GL_TRUE;
+ }
+ }
+ else if (mode == XMESA_FX_FULLSCREEN) {
+ FX_grSstControl(GR_CONTROL_ACTIVATE);
+ xmbuf->FXwindowHack = GL_FALSE;
+ return GL_TRUE;
+ }
+ else {
+ /* Error: Bad mode value */
+ }
+ }
+ }
+ /*fprintf(stderr, "fallthrough\n");*/
+#else
+ (void) mode;
+#endif
+ return GL_FALSE;
+}
+
+
+
+#ifdef FX
+/*
+ * Read image from VooDoo frame buffer into X/Mesa's back XImage.
+ */
+static void FXgetImage( XMesaBuffer b )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ static unsigned short pixbuf[MAX_WIDTH];
+ GLuint x, y;
+ int xpos, ypos;
+ XMesaWindow root;
+ unsigned int bw, depth, width, height;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+#ifdef XFree86Server
+ x = b->frontxrb->pixmap->x;
+ y = b->frontxrb->pixmap->y;
+ width = b->frontxrb->pixmap->width;
+ height = b->frontxrb->pixmap->height;
+ depth = b->frontxrb->pixmap->depth;
+#else
+ XGetGeometry( b->xm_visual->display, b->frontxrb->pixmap,
+ &root, &xpos, &ypos, &width, &height, &bw, &depth);
+#endif
+ if (b->mesa_buffer.Width != width || b->mesa_buffer.Height != height) {
+ b->mesa_buffer.Width = MIN2((int)width, b->FXctx->width);
+ b->mesa_buffer.Height = MIN2((int)height, b->FXctx->height);
+ if (b->mesa_buffer.Width & 1)
+ b->mesa_buffer.Width--; /* prevent odd width */
+ xmesa_alloc_back_buffer(b, b->mesa_buffer.Width, b->mesa_buffer.Height);
+ }
+
+ /* [dBorca] we're always in the right GR_COLORFORMAT... aren't we? */
+ /* grLfbWriteColorFormat(GR_COLORFORMAT_ARGB); */
+ if (b->xm_visual->undithered_pf==PF_5R6G5B) {
+ /* Special case: 16bpp RGB */
+ grLfbReadRegion( GR_BUFFER_FRONTBUFFER, /* src buffer */
+ 0, b->FXctx->height - b->mesa_buffer.Height, /*pos*/
+ b->mesa_buffer.Width, b->mesa_buffer.Height, /* size */
+ b->mesa_buffer.Width * sizeof(GLushort), /* stride */
+ b->backxrb->ximage->data); /* dest buffer */
+ }
+ else if (b->xm_visual->dithered_pf==PF_Dither
+ && GET_VISUAL_DEPTH(b->xm_visual)==8) {
+ /* Special case: 8bpp RGB */
+ for (y=0;y<b->mesa_buffer.Height;y++) {
+ GLubyte *ptr = (GLubyte*) b->backxrb->ximage->data
+ + b->backxrb->ximage->bytes_per_line * y;
+ XDITHER_SETUP(y);
+
+ /* read row from 3Dfx frame buffer */
+ grLfbReadRegion( GR_BUFFER_FRONTBUFFER,
+ 0, b->FXctx->height-(b->mesa_buffer.Height-y),
+ b->mesa_buffer.Width, 1,
+ 0,
+ pixbuf );
+
+ /* write to XImage back buffer */
+ for (x=0;x<b->mesa_buffer.Width;x++) {
+ GLubyte r = (pixbuf[x] & 0xf800) >> 8;
+ GLubyte g = (pixbuf[x] & 0x07e0) >> 3;
+ GLubyte b = (pixbuf[x] & 0x001f) << 3;
+ *ptr++ = XDITHER( x, r, g, b);
+ }
+ }
+ }
+ else {
+ /* General case: slow! */
+ for (y=0;y<b->mesa_buffer.Height;y++) {
+ /* read row from 3Dfx frame buffer */
+ grLfbReadRegion( GR_BUFFER_FRONTBUFFER,
+ 0, b->FXctx->height-(b->mesa_buffer.Height-y),
+ b->mesa_buffer.Width, 1,
+ 0,
+ pixbuf );
+
+ /* write to XImage back buffer */
+ for (x=0;x<b->mesa_buffer.Width;x++) {
+ XMesaPutPixel(b->backxrb->ximage,x,y,
+ xmesa_color_to_pixel(ctx,
+ (pixbuf[x] & 0xf800) >> 8,
+ (pixbuf[x] & 0x07e0) >> 3,
+ (pixbuf[x] & 0x001f) << 3,
+ 0xff,
+ b->xm_visual->undithered_pf));
+ }
+ }
+ }
+ /* grLfbWriteColorFormat(GR_COLORFORMAT_ABGR); */
+}
+#endif
+
+
+/*
+ * Copy the back buffer to the front buffer. If there's no back buffer
+ * this is a no-op.
+ */
+void XMesaSwapBuffers( XMesaBuffer b )
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ /* If we're swapping the buffer associated with the current context
+ * we have to flush any pending rendering commands first.
+ */
+ if (ctx && ctx->DrawBuffer == &(b->mesa_buffer))
+ _mesa_notifySwapBuffers(ctx);
+
+ if (b->db_state) {
+#ifdef FX
+ if (b->FXctx) {
+ fxMesaSwapBuffers();
+
+ if (b->FXwindowHack)
+ FXgetImage(b);
+ else
+ return;
+ }
+#endif
+ if (b->backxrb->ximage) {
+ /* Copy Ximage from host's memory to server's window */
+#if defined(USE_XSHM) && !defined(XFree86Server)
+ if (b->shm) {
+ /*_glthread_LOCK_MUTEX(_xmesa_lock);*/
+ XShmPutImage( b->xm_visual->display, b->frontxrb->drawable,
+ b->swapgc,
+ b->backxrb->ximage, 0, 0,
+ 0, 0, b->mesa_buffer.Width, b->mesa_buffer.Height,
+ False );
+ /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/
+ }
+ else
+#endif
+ {
+ /*_glthread_LOCK_MUTEX(_xmesa_lock);*/
+ XMesaPutImage( b->xm_visual->display, b->frontxrb->drawable,
+ b->swapgc,
+ b->backxrb->ximage, 0, 0,
+ 0, 0, b->mesa_buffer.Width, b->mesa_buffer.Height );
+ /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/
+ }
+ }
+ else {
+ /* Copy pixmap to window on server */
+ /*_glthread_LOCK_MUTEX(_xmesa_lock);*/
+ XMesaCopyArea( b->xm_visual->display,
+ b->backxrb->pixmap, /* source drawable */
+ b->frontxrb->drawable, /* dest. drawable */
+ b->swapgc,
+ 0, 0, b->mesa_buffer.Width, b->mesa_buffer.Height,
+ 0, 0 /* dest region */
+ );
+ /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/
+ }
+ }
+#if !defined(XFree86Server)
+ XSync( b->xm_visual->display, False );
+#endif
+}
+
+
+
+/*
+ * Copy sub-region of back buffer to front buffer
+ */
+void XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ /* If we're swapping the buffer associated with the current context
+ * we have to flush any pending rendering commands first.
+ */
+ if (ctx && ctx->DrawBuffer == &(b->mesa_buffer))
+ _mesa_notifySwapBuffers(ctx);
+
+ if (b->db_state) {
+ int yTop = b->mesa_buffer.Height - y - height;
+#ifdef FX
+ if (b->FXctx) {
+ fxMesaSwapBuffers();
+ if (b->FXwindowHack)
+ FXgetImage(b);
+ else
+ return;
+ }
+#endif
+ if (b->backxrb->ximage) {
+ /* Copy Ximage from host's memory to server's window */
+#if defined(USE_XSHM) && !defined(XFree86Server)
+ if (b->shm) {
+ /* XXX assuming width and height aren't too large! */
+ XShmPutImage( b->xm_visual->display, b->frontxrb->drawable,
+ b->swapgc,
+ b->backxrb->ximage, x, yTop,
+ x, yTop, width, height, False );
+ /* wait for finished event??? */
+ }
+ else
+#endif
+ {
+ /* XXX assuming width and height aren't too large! */
+ XMesaPutImage( b->xm_visual->display, b->frontxrb->drawable,
+ b->swapgc,
+ b->backxrb->ximage, x, yTop,
+ x, yTop, width, height );
+ }
+ }
+ else {
+ /* Copy pixmap to window on server */
+ XMesaCopyArea( b->xm_visual->display,
+ b->backxrb->pixmap, /* source drawable */
+ b->frontxrb->drawable, /* dest. drawable */
+ b->swapgc,
+ x, yTop, width, height, /* source region */
+ x, yTop /* dest region */
+ );
+ }
+ }
+}
+
+
+/*
+ * Return a pointer to the XMesa backbuffer Pixmap or XImage. This function
+ * is a way to get "under the hood" of X/Mesa so one can manipulate the
+ * back buffer directly.
+ * Output: pixmap - pointer to back buffer's Pixmap, or 0
+ * ximage - pointer to back buffer's XImage, or NULL
+ * Return: GL_TRUE = context is double buffered
+ * GL_FALSE = context is single buffered
+ */
+#ifndef XFree86Server
+GLboolean XMesaGetBackBuffer( XMesaBuffer b,
+ XMesaPixmap *pixmap,
+ XMesaImage **ximage )
+{
+ if (b->db_state) {
+ if (pixmap) *pixmap = b->backxrb->pixmap;
+ if (ximage) *ximage = b->backxrb->ximage;
+ return GL_TRUE;
+ }
+ else {
+ *pixmap = 0;
+ *ximage = NULL;
+ return GL_FALSE;
+ }
+}
+#endif /* XFree86Server */
+
+
+/*
+ * Return the depth buffer associated with an XMesaBuffer.
+ * Input: b - the XMesa buffer handle
+ * Output: width, height - size of buffer in pixels
+ * bytesPerValue - bytes per depth value (2 or 4)
+ * buffer - pointer to depth buffer values
+ * Return: GL_TRUE or GL_FALSE to indicate success or failure.
+ */
+GLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height,
+ GLint *bytesPerValue, void **buffer )
+{
+ struct gl_renderbuffer *rb
+ = b->mesa_buffer.Attachment[BUFFER_DEPTH].Renderbuffer;
+ if (!rb || !rb->Data) {
+ *width = 0;
+ *height = 0;
+ *bytesPerValue = 0;
+ *buffer = 0;
+ return GL_FALSE;
+ }
+ else {
+ *width = b->mesa_buffer.Width;
+ *height = b->mesa_buffer.Height;
+ *bytesPerValue = b->mesa_buffer.Visual.depthBits <= 16
+ ? sizeof(GLushort) : sizeof(GLuint);
+ *buffer = rb->Data;
+ return GL_TRUE;
+ }
+}
+
+
+void XMesaFlush( XMesaContext c )
+{
+ if (c && c->xm_visual) {
+#ifdef XFree86Server
+ /* NOT_NEEDED */
+#else
+ XSync( c->xm_visual->display, False );
+#endif
+ }
+}
+
+
+
+const char *XMesaGetString( XMesaContext c, int name )
+{
+ (void) c;
+ if (name==XMESA_VERSION) {
+ return "5.0";
+ }
+ else if (name==XMESA_EXTENSIONS) {
+ return "";
+ }
+ else {
+ return NULL;
+ }
+}
+
+
+
+XMesaBuffer XMesaFindBuffer( XMesaDisplay *dpy, XMesaDrawable d )
+{
+ XMesaBuffer b;
+ for (b=XMesaBufferList; b; b=b->Next) {
+ if (b->frontxrb->drawable == d && b->display == dpy) {
+ return b;
+ }
+ }
+ return NULL;
+}
+
+
+
+/*
+ * Look for XMesaBuffers whose X window has been destroyed.
+ * Deallocate any such XMesaBuffers.
+ */
+void XMesaGarbageCollect( void )
+{
+ XMesaBuffer b, next;
+ for (b=XMesaBufferList; b; b=next) {
+ next = b->Next;
+ if (b->display && b->frontxrb->drawable && b->type == WINDOW) {
+#ifdef XFree86Server
+ /* NOT_NEEDED */
+#else
+ XSync(b->display, False);
+ if (!window_exists( b->display, b->frontxrb->drawable )) {
+ /* found a dead window, free the ancillary info */
+ XMesaDestroyBuffer( b );
+ }
+#endif
+ }
+ }
+}
+
+
+void XMesaReset( void )
+{
+ while (XMesaBufferList)
+ XMesaDestroyBuffer(XMesaBufferList);
+
+ XMesaBufferList = NULL;
+}
+
+
+unsigned long XMesaDitherColor( XMesaContext xmesa, GLint x, GLint y,
+ GLfloat red, GLfloat green,
+ GLfloat blue, GLfloat alpha )
+{
+ GLcontext *ctx = &xmesa->mesa;
+ GLint r = (GLint) (red * 255.0F);
+ GLint g = (GLint) (green * 255.0F);
+ GLint b = (GLint) (blue * 255.0F);
+ GLint a = (GLint) (alpha * 255.0F);
+
+ switch (xmesa->pixelformat) {
+ case PF_Index:
+ return 0;
+ case PF_Truecolor:
+ {
+ unsigned long p;
+ PACK_TRUECOLOR( p, r, g, b );
+ return p;
+ }
+ case PF_8A8B8G8R:
+ return PACK_8A8B8G8R( r, g, b, a );
+ case PF_8A8R8G8B:
+ return PACK_8A8R8G8B( r, g, b, a );
+ case PF_8R8G8B:
+ return PACK_8R8G8B( r, g, b );
+ case PF_5R6G5B:
+ return PACK_5R6G5B( r, g, b );
+ case PF_Dither:
+ {
+ DITHER_SETUP;
+ return DITHER( x, y, r, g, b );
+ }
+ case PF_1Bit:
+ /* 382 = (3*255)/2 */
+ return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip;
+ case PF_HPCR:
+ return DITHER_HPCR(x, y, r, g, b);
+ case PF_Lookup:
+ {
+ LOOKUP_SETUP;
+ return LOOKUP( r, g, b );
+ }
+ case PF_Grayscale:
+ return GRAY_RGB( r, g, b );
+ case PF_Dither_5R6G5B:
+ /* fall through */
+ case PF_Dither_True:
+ {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, r, g, b);
+ return p;
+ }
+ default:
+ _mesa_problem(NULL, "Bad pixel format in XMesaDitherColor");
+ }
+ return 0;
+}
+
+
+/*
+ * This is typically called when the window size changes and we need
+ * to reallocate the buffer's back/depth/stencil/accum buffers.
+ */
+void XMesaResizeBuffers( XMesaBuffer b )
+{
+#ifdef XFree86Server
+ GLuint winwidth, winheight;
+ GET_CURRENT_CONTEXT(ctx);
+
+ winwidth = MIN2(b->frontxrb->drawable->width, MAX_WIDTH);
+ winheight = MIN2(b->frontxrb->drawable->height, MAX_HEIGHT);
+
+ xmesa_resize_buffers(ctx, &(b->mesa_buffer), winwidth, winheight);
+#else
+ Window root;
+ int xpos, ypos;
+ unsigned int width, height, bw, depth;
+ GET_CURRENT_CONTEXT(ctx);
+ XGetGeometry( b->xm_visual->display, b->frontxrb->pixmap,
+ &root, &xpos, &ypos, &width, &height, &bw, &depth);
+ xmesa_resize_buffers(ctx, &(b->mesa_buffer), width, height);
+#endif
+}
+
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_buffer.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_buffer.c
new file mode 100644
index 000000000..593ac2bb1
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_buffer.c
@@ -0,0 +1,115 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glxheader.h"
+#include "GL/xmesa.h"
+#include "xmesaP.h"
+#include "imports.h"
+#include "renderbuffer.h"
+
+
+static void
+xmesa_delete_renderbuffer(struct gl_renderbuffer *rb)
+{
+ /* XXX Note: the ximage or Pixmap attached to this renderbuffer
+ * should probably get freed here, but that's currently done in
+ * XMesaDestroyBuffer().
+ */
+ _mesa_free(rb);
+}
+
+
+/**
+ * Reallocate renderbuffer storage.
+ * This is called when the window's resized. It'll get called once for
+ * the front color renderbuffer and again for the back color renderbuffer.
+ */
+static GLboolean
+xmesa_alloc_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLenum internalFormat, GLuint width, GLuint height)
+{
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+
+ if (xrb->ximage) {
+ /* Needed by PIXELADDR1 macro */
+ xrb->width1 = xrb->ximage->bytes_per_line;
+ xrb->origin1 = (GLubyte *) xrb->ximage->data + xrb->width1 * (height - 1);
+
+ /* Needed by PIXELADDR2 macro */
+ xrb->width2 = xrb->ximage->bytes_per_line / 2;
+ xrb->origin2 = (GLushort *) xrb->ximage->data + xrb->width2 * (height - 1);
+
+ /* Needed by PIXELADDR3 macro */
+ xrb->width3 = xrb->ximage->bytes_per_line;
+ xrb->origin3 = (GLubyte *) xrb->ximage->data + xrb->width3 * (height - 1);
+
+ /* Needed by PIXELADDR4 macro */
+ xrb->width4 = xrb->ximage->width;
+ xrb->origin4 = (GLuint *) xrb->ximage->data + xrb->width4 * (height - 1);
+ }
+ else {
+ assert(xrb->pixmap);
+ }
+
+ /* for the FLIP macro: */
+ xrb->bottom = height - 1;
+
+ rb->Width = width;
+ rb->Height = height;
+ rb->InternalFormat = internalFormat;
+
+ return GL_TRUE;
+}
+
+
+struct xmesa_renderbuffer *
+xmesa_new_renderbuffer(GLcontext *ctx, GLuint name, GLboolean rgbMode)
+{
+ struct xmesa_renderbuffer *xrb = CALLOC_STRUCT(xmesa_renderbuffer);
+ if (xrb) {
+ GLuint name = 0;
+ _mesa_init_renderbuffer(&xrb->Base, name);
+
+ xrb->Base.Delete = xmesa_delete_renderbuffer;
+ xrb->Base.AllocStorage = xmesa_alloc_storage;
+
+ if (rgbMode) {
+ xrb->Base.InternalFormat = GL_RGBA;
+ xrb->Base._BaseFormat = GL_RGBA;
+ xrb->Base.DataType = GL_UNSIGNED_BYTE;
+ }
+ else {
+ xrb->Base.InternalFormat = GL_COLOR_INDEX;
+ xrb->Base._BaseFormat = GL_COLOR_INDEX;
+ xrb->Base.DataType = GL_UNSIGNED_INT;
+ }
+ xrb->Base.ComponentSizes[0] = 0; /* XXX fix? */
+ }
+ return xrb;
+}
+
+
+
+
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_dd.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_dd.c
new file mode 100644
index 000000000..bc16a7bd4
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_dd.c
@@ -0,0 +1,1201 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glxheader.h"
+#include "bufferobj.h"
+#include "buffers.h"
+#include "context.h"
+#include "colormac.h"
+#include "depth.h"
+#include "drawpix.h"
+#include "extensions.h"
+#include "framebuffer.h"
+#include "macros.h"
+#include "image.h"
+#include "imports.h"
+#include "mtypes.h"
+#include "state.h"
+#include "texobj.h"
+#include "teximage.h"
+#include "texstore.h"
+#include "texformat.h"
+#include "xmesaP.h"
+#include "array_cache/acache.h"
+#include "swrast/swrast.h"
+#include "swrast/s_context.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+
+#ifdef XFree86Server
+#include <GL/glxtokens.h>
+#endif
+
+
+
+/*
+ * Dithering kernels and lookup tables.
+ */
+
+const int xmesa_kernel8[DITH_DY * DITH_DX] = {
+ 0 * MAXC, 8 * MAXC, 2 * MAXC, 10 * MAXC,
+ 12 * MAXC, 4 * MAXC, 14 * MAXC, 6 * MAXC,
+ 3 * MAXC, 11 * MAXC, 1 * MAXC, 9 * MAXC,
+ 15 * MAXC, 7 * MAXC, 13 * MAXC, 5 * MAXC,
+};
+
+const short xmesa_HPCR_DRGB[3][2][16] = {
+ {
+ { 16, -4, 1,-11, 14, -6, 3, -9, 15, -5, 2,-10, 13, -7, 4, -8},
+ {-15, 5, 0, 12,-13, 7, -2, 10,-14, 6, -1, 11,-12, 8, -3, 9}
+ },
+ {
+ {-11, 15, -7, 3, -8, 14, -4, 2,-10, 16, -6, 4, -9, 13, -5, 1},
+ { 12,-14, 8, -2, 9,-13, 5, -1, 11,-15, 7, -3, 10,-12, 6, 0}
+ },
+ {
+ { 6,-18, 26,-14, 2,-22, 30,-10, 8,-16, 28,-12, 4,-20, 32, -8},
+ { -4, 20,-24, 16, 0, 24,-28, 12, -6, 18,-26, 14, -2, 22,-30, 10}
+ }
+};
+
+const int xmesa_kernel1[16] = {
+ 0*47, 9*47, 4*47, 12*47, /* 47 = (255*3)/16 */
+ 6*47, 2*47, 14*47, 8*47,
+ 10*47, 1*47, 5*47, 11*47,
+ 7*47, 13*47, 3*47, 15*47
+};
+
+
+/*
+ * Return the size (width, height) of the X window for the given GLframebuffer.
+ * Output: width - width of buffer in pixels.
+ * height - height of buffer in pixels.
+ */
+static void
+get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
+{
+ /* We can do this cast because the first field in the XMesaBuffer
+ * struct is a GLframebuffer struct. If this weren't true, we'd
+ * need a pointer from the GLframebuffer to the XMesaBuffer.
+ */
+ const XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
+ unsigned int winwidth, winheight;
+#ifdef XFree86Server
+ /* XFree86 GLX renderer */
+ winwidth = MIN2(xmBuffer->frontxrb->drawable->width, MAX_WIDTH);
+ winheight = MIN2(xmBuffer->frontxrb->drawable->height, MAX_HEIGHT);
+#else
+ Window root;
+ int winx, winy;
+ unsigned int bw, d;
+
+ _glthread_LOCK_MUTEX(_xmesa_lock);
+ XSync(xmBuffer->xm_visual->display, 0); /* added for Chromium */
+ XGetGeometry( xmBuffer->xm_visual->display, xmBuffer->frontxrb->pixmap, &root,
+ &winx, &winy, &winwidth, &winheight, &bw, &d );
+ _glthread_UNLOCK_MUTEX(_xmesa_lock);
+#endif
+
+ *width = winwidth;
+ *height = winheight;
+}
+
+
+static void
+finish_or_flush( GLcontext *ctx )
+{
+#ifdef XFree86Server
+ /* NOT_NEEDED */
+#else
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ if (xmesa) {
+ _glthread_LOCK_MUTEX(_xmesa_lock);
+ XSync( xmesa->display, False );
+ _glthread_UNLOCK_MUTEX(_xmesa_lock);
+ }
+#endif
+}
+
+
+static void
+clear_index( GLcontext *ctx, GLuint index )
+{
+ if (ctx->DrawBuffer->Name == 0) {
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ xmesa->clearpixel = (unsigned long) index;
+ XMesaSetForeground( xmesa->display, xmbuf->cleargc, (unsigned long) index );
+ }
+}
+
+
+static void
+clear_color( GLcontext *ctx, const GLfloat color[4] )
+{
+ if (ctx->DrawBuffer->Name == 0) {
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+ xmesa->clearpixel = xmesa_color_to_pixel( ctx,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2],
+ xmesa->clearcolor[3],
+ xmesa->xm_visual->undithered_pf );
+ _glthread_LOCK_MUTEX(_xmesa_lock);
+ XMesaSetForeground( xmesa->display, xmbuf->cleargc,
+ xmesa->clearpixel );
+ _glthread_UNLOCK_MUTEX(_xmesa_lock);
+ }
+}
+
+
+
+/* Set index mask ala glIndexMask */
+static void
+index_mask( GLcontext *ctx, GLuint mask )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ /* not sure this conditional is really needed */
+ if (xmbuf->backxrb && xmbuf->backxrb->pixmap) {
+ unsigned long m;
+ if (mask==0xffffffff) {
+ m = ((unsigned long)~0L);
+ }
+ else {
+ m = (unsigned long) mask;
+ }
+ XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m );
+ }
+}
+
+
+/* Implements glColorMask() */
+static void
+color_mask(GLcontext *ctx,
+ GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ const int xclass = xmesa->xm_visual->mesa_visual.visualType;
+ (void) amask;
+
+ if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) {
+ unsigned long m;
+ if (rmask && gmask && bmask) {
+ m = ((unsigned long)~0L);
+ }
+ else {
+ m = 0;
+ if (rmask) m |= GET_REDMASK(xmesa->xm_visual);
+ if (gmask) m |= GET_GREENMASK(xmesa->xm_visual);
+ if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual);
+ }
+ XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m );
+ }
+}
+
+
+
+/**********************************************************************/
+/*** glClear implementations ***/
+/**********************************************************************/
+
+
+/**
+ * Clear the front or back color buffer, if it's implemented with a pixmap.
+ */
+static void
+clear_pixmap(GLcontext *ctx, struct xmesa_renderbuffer *xrb, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height)
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+
+ assert(xmbuf);
+ assert(xrb->pixmap);
+ assert(xmesa);
+ assert(xmesa->display);
+ assert(xrb->pixmap);
+ assert(xmbuf->cleargc);
+
+ if (all) {
+ XMesaFillRectangle( xmesa->display, xrb->pixmap, xmbuf->cleargc,
+ 0, 0, xrb->Base.Width + 1, xrb->Base.Height + 1 );
+ }
+ else {
+ XMesaFillRectangle( xmesa->display, xrb->pixmap, xmbuf->cleargc,
+ x, xrb->Base.Height - y - height,
+ width, height );
+ }
+}
+
+
+static void
+clear_8bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ if (all) {
+ const size_t n = xrb->ximage->bytes_per_line * xrb->Base.Height;
+ MEMSET( xrb->ximage->data, xmesa->clearpixel, n );
+ }
+ else {
+ GLint i;
+ for (i=0;i<height;i++) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x, y + i);
+ MEMSET( ptr, xmesa->clearpixel, width );
+ }
+ }
+}
+
+
+static void
+clear_HPCR_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ if (all) {
+ GLint i, c16 = (xrb->ximage->bytes_per_line>>4)<<4;
+ GLubyte *ptr = (GLubyte *) xrb->ximage->data;
+ for (i = 0; i < xrb->Base.Height; i++) {
+ GLint j;
+ GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
+ if (i&1) {
+ sptr += 16;
+ }
+ for (j=0; j<c16; j+=16) {
+ ptr[0] = sptr[0];
+ ptr[1] = sptr[1];
+ ptr[2] = sptr[2];
+ ptr[3] = sptr[3];
+ ptr[4] = sptr[4];
+ ptr[5] = sptr[5];
+ ptr[6] = sptr[6];
+ ptr[7] = sptr[7];
+ ptr[8] = sptr[8];
+ ptr[9] = sptr[9];
+ ptr[10] = sptr[10];
+ ptr[11] = sptr[11];
+ ptr[12] = sptr[12];
+ ptr[13] = sptr[13];
+ ptr[14] = sptr[14];
+ ptr[15] = sptr[15];
+ ptr += 16;
+ }
+ for (; j < xrb->ximage->bytes_per_line; j++) {
+ *ptr = sptr[j&15];
+ ptr++;
+ }
+ }
+ }
+ else {
+ GLint i;
+ for (i=y; i<y+height; i++) {
+ GLubyte *ptr = PIXEL_ADDR1( xrb, x, i );
+ int j;
+ const GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
+ if (i&1) {
+ sptr += 16;
+ }
+ for (j=x; j<x+width; j++) {
+ *ptr = sptr[j&15];
+ ptr++;
+ }
+ }
+ }
+}
+
+
+static void
+clear_16bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint pixel = (GLuint) xmesa->clearpixel;
+
+ if (xmesa->swapbytes) {
+ pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00);
+ }
+
+ if (all) {
+ GLuint *ptr4 = (GLuint *) xrb->ximage->data;
+ if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) {
+ /* low and high bytes are equal so use memset() */
+ const GLuint n = xrb->ximage->bytes_per_line * xrb->Base.Height;
+ MEMSET( ptr4, pixel & 0xff, n );
+ }
+ else {
+ const GLuint n = xrb->ximage->bytes_per_line * xrb->Base.Height / 4;
+ GLuint i;
+ pixel = pixel | (pixel<<16);
+ for (i = 0; i < n; i++) {
+ ptr4[i] = pixel;
+ }
+ ptr4 += n;
+ /* might be one last GLushort to set */
+ if ((xrb->ximage->bytes_per_line * xrb->Base.Height) & 0x2)
+ *(GLushort *)ptr4 = pixel & 0xffff;
+ }
+ }
+ else {
+ GLint i, j;
+ for (j=0;j<height;j++) {
+ GLushort *ptr2 = PIXEL_ADDR2(xrb, x, y + j);
+ for (i=0;i<width;i++) {
+ *ptr2++ = pixel;
+ }
+ }
+ }
+}
+
+
+/* Optimized code provided by Nozomi Ytow <noz@xfree86.org> */
+static void
+clear_24bit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const GLubyte r = xmesa->clearcolor[0];
+ const GLubyte g = xmesa->clearcolor[1];
+ const GLubyte b = xmesa->clearcolor[2];
+
+ if (all) {
+ if (r == g && g == b) {
+ /* same value for all three components (gray) */
+ const GLint w3 = xrb->Base.Width * 3;
+ const GLint h = xrb->Base.Height;
+ GLint i;
+ for (i = 0; i < h; i++) {
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, 0, i);
+ MEMSET(ptr3, r, w3);
+ }
+ }
+ else {
+ /* the usual case */
+ const GLint w = xrb->Base.Width;
+ const GLint h = xrb->Base.Height;
+ GLint i, j;
+ for (i = 0; i < h; i++) {
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, 0, i);
+ for (j = 0; j < w; j++) {
+ ptr3->r = r;
+ ptr3->g = g;
+ ptr3->b = b;
+ ptr3++;
+ }
+ }
+ }
+ }
+ else {
+ /* only clear subrect of color buffer */
+ if (r == g && g == b) {
+ /* same value for all three components (gray) */
+ GLint j;
+ for (j=0;j<height;j++) {
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y + j);
+ MEMSET(ptr3, r, 3 * width);
+ }
+ }
+ else {
+ /* non-gray clear color */
+ GLint i, j;
+ for (j = 0; j < height; j++) {
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y + j);
+ for (i = 0; i < width; i++) {
+ ptr3->r = r;
+ ptr3->g = g;
+ ptr3->b = b;
+ ptr3++;
+ }
+ }
+ }
+ }
+}
+
+
+static void
+clear_32bit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint pixel = (GLuint) xmesa->clearpixel;
+
+ if (xmesa->swapbytes) {
+ pixel = ((pixel >> 24) & 0x000000ff)
+ | ((pixel >> 8) & 0x0000ff00)
+ | ((pixel << 8) & 0x00ff0000)
+ | ((pixel << 24) & 0xff000000);
+ }
+
+ if (all) {
+ const GLuint n = xrb->Base.Width * xrb->Base.Height;
+ GLuint *ptr4 = (GLuint *) xrb->ximage->data;
+ if (pixel == 0) {
+ _mesa_memset(ptr4, pixel, 4 * n);
+ }
+ else {
+ GLuint i;
+ for (i = 0; i < n; i++)
+ ptr4[i] = pixel;
+ }
+ }
+ else {
+ GLint i, j;
+ for (j = 0; j < height; j++) {
+ GLuint *ptr4 = PIXEL_ADDR4(xrb, x, y + j);
+ for (i = 0; i < width; i++) {
+ ptr4[i] = pixel;
+ }
+ }
+ }
+}
+
+
+static void
+clear_nbit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaImage *img = xrb->ximage;
+ GLint i, j;
+
+ /* We can ignore 'all' here - x, y, width, height are always right */
+ (void) all;
+
+ /* TODO: optimize this */
+ y = YFLIP(xrb, y);
+ for (j = 0; j < height; j++) {
+ for (i = 0; i < width; i++) {
+ XMesaPutPixel(img, x+i, y-j, xmesa->clearpixel);
+ }
+ }
+}
+
+
+
+static void
+clear_buffers( GLcontext *ctx, GLbitfield mask,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height )
+{
+ if (ctx->DrawBuffer->Name == 0) {
+ /* this is a window system framebuffer */
+ const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
+ XMesaBuffer b = (XMesaBuffer) ctx->DrawBuffer;
+
+ /* we can't handle color or index masking */
+ if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
+ if (mask & BUFFER_BIT_FRONT_LEFT) {
+ /* clear front color buffer */
+ if (b->frontxrb == (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->Attachment[BUFFER_FRONT_LEFT].Renderbuffer) {
+ /* renderbuffer is not wrapped - great! */
+ b->frontxrb->clearFunc(ctx, b->frontxrb, all, x, y,
+ width, height);
+ mask &= ~BUFFER_BIT_FRONT_LEFT;
+ }
+ else {
+ /* we can't directly clear an alpha-wrapped color buffer */
+ }
+ }
+ if (mask & BUFFER_BIT_BACK_LEFT) {
+ /* clear back color buffer */
+ if (b->backxrb == (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer) {
+ /* renderbuffer is not wrapped - great! */
+ b->backxrb->clearFunc(ctx, b->backxrb, all, x, y,
+ width, height);
+ mask &= ~BUFFER_BIT_BACK_LEFT;
+ }
+ }
+ }
+ }
+ if (mask)
+ _swrast_Clear( ctx, mask, all, x, y, width, height );
+}
+
+
+/**
+ * Called by ctx->Driver.ResizeBuffers()
+ * Resize the front/back colorbuffers to match the latest window size.
+ */
+void
+xmesa_resize_buffers(GLcontext *ctx, GLframebuffer *buffer,
+ GLuint width, GLuint height)
+{
+ /* We can do this cast because the first field in the XMesaBuffer
+ * struct is a GLframebuffer struct. If this weren't true, we'd
+ * need a pointer from the GLframebuffer to the XMesaBuffer.
+ */
+ XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
+
+ xmesa_alloc_back_buffer(xmBuffer, width, height);
+
+ _mesa_resize_framebuffer(ctx, buffer, width, height);
+
+ if (ctx)
+ ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */
+}
+
+
+#ifndef XFree86Server
+/* XXX this was never tested in the Xserver environment */
+
+/**
+ * This function implements glDrawPixels() with an XPutImage call when
+ * drawing to the front buffer (X Window drawable).
+ * The image format must be GL_BGRA to match the PF_8R8G8B pixel format.
+ */
+static void
+xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
+{
+ struct xmesa_renderbuffer *xrb
+ = (struct xmesa_renderbuffer *) ctx->DrawBuffer->_ColorDrawBuffers[0][0];
+
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ const XMesaGC gc = xmbuf->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+ ASSERT(xmesa->xm_visual->dithered_pf == PF_8R8G8B);
+ ASSERT(xmesa->xm_visual->undithered_pf == PF_8R8G8B);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (xrb->pixmap &&
+ format == GL_BGRA &&
+ type == GL_UNSIGNED_BYTE &&
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ int dstX = x;
+ int dstY = y;
+ int w = width;
+ int h = height;
+ int srcX = unpack->SkipPixels;
+ int srcY = unpack->SkipRows;
+ int rowLength = unpack->RowLength ? unpack->RowLength : width;
+
+ if (unpack->BufferObj->Name) {
+ /* unpack from PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx,
+ GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ unpack->BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ /* This is a little tricky since all coordinates up to now have
+ * been in the OpenGL bottom-to-top orientation. X is top-to-bottom
+ * so we have to carefully compute the Y coordinates/addresses here.
+ */
+ XMesaImage ximage;
+ MEMSET(&ximage, 0, sizeof(XMesaImage));
+ ximage.width = width;
+ ximage.height = height;
+ ximage.format = ZPixmap;
+ ximage.data = (char *) pixels
+ + ((srcY + h - 1) * rowLength + srcX) * 4;
+ ximage.byte_order = LSBFirst;
+ ximage.bitmap_unit = 32;
+ ximage.bitmap_bit_order = LSBFirst;
+ ximage.bitmap_pad = 32;
+ ximage.depth = 24;
+ ximage.bytes_per_line = -rowLength * 4; /* negative to flip image */
+ ximage.bits_per_pixel = 32;
+ /* it seems we don't need to set the ximage.red/green/blue_mask fields */
+ /* flip Y axis for dest position */
+ dstY = YFLIP(xrb, dstY) - h + 1;
+ XPutImage(dpy, xrb->pixmap, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ }
+
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
+ }
+ else {
+ /* software fallback */
+ _swrast_DrawPixels(ctx, x, y, width, height,
+ format, type, unpack, pixels);
+ }
+}
+
+
+
+/**
+ * This function implements glDrawPixels() with an XPutImage call when
+ * drawing to the front buffer (X Window drawable). The image format
+ * must be GL_RGB and image type must be GL_UNSIGNED_SHORT_5_6_5 to
+ * match the PF_5R6G5B pixel format.
+ */
+static void
+xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
+{
+ struct xmesa_renderbuffer *xrb
+ = (struct xmesa_renderbuffer *) ctx->DrawBuffer->_ColorDrawBuffers[0][0];
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ const XMesaGC gc = xmbuf->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+ ASSERT(xmesa->xm_visual->undithered_pf == PF_5R6G5B);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (xrb->pixmap &&
+ format == GL_RGB &&
+ type == GL_UNSIGNED_SHORT_5_6_5 &&
+ !ctx->Color.DitherFlag && /* no dithering */
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ int dstX = x;
+ int dstY = y;
+ int w = width;
+ int h = height;
+ int srcX = unpack->SkipPixels;
+ int srcY = unpack->SkipRows;
+ int rowLength = unpack->RowLength ? unpack->RowLength : width;
+
+ if (unpack->BufferObj->Name) {
+ /* unpack from PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx,
+ GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ unpack->BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ /* This is a little tricky since all coordinates up to now have
+ * been in the OpenGL bottom-to-top orientation. X is top-to-bottom
+ * so we have to carefully compute the Y coordinates/addresses here.
+ */
+ XMesaImage ximage;
+ MEMSET(&ximage, 0, sizeof(XMesaImage));
+ ximage.width = width;
+ ximage.height = height;
+ ximage.format = ZPixmap;
+ ximage.data = (char *) pixels
+ + ((srcY + h - 1) * rowLength + srcX) * 2;
+ ximage.byte_order = LSBFirst;
+ ximage.bitmap_unit = 16;
+ ximage.bitmap_bit_order = LSBFirst;
+ ximage.bitmap_pad = 16;
+ ximage.depth = 16;
+ ximage.bytes_per_line = -rowLength * 2; /* negative to flip image */
+ ximage.bits_per_pixel = 16;
+ /* it seems we don't need to set the ximage.red/green/blue_mask fields */
+ /* flip Y axis for dest position */
+ dstY = YFLIP(xrb, dstY) - h + 1;
+ XPutImage(dpy, xrb->pixmap, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ }
+
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
+ }
+ else {
+ /* software fallback */
+ _swrast_DrawPixels(ctx, x, y, width, height,
+ format, type, unpack, pixels);
+ }
+}
+
+
+
+/**
+ * Implement glCopyPixels for the front color buffer (or back buffer Pixmap)
+ * for the color buffer. Don't support zooming, pixel transfer, etc.
+ * We do support copying from one window to another, ala glXMakeCurrentRead.
+ */
+static void
+xmesa_CopyPixels( GLcontext *ctx,
+ GLint srcx, GLint srcy, GLsizei width, GLsizei height,
+ GLint destx, GLint desty, GLenum type )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ const XMesaGC gc = ((XMesaBuffer) ctx->DrawBuffer)->gc;
+ struct xmesa_renderbuffer *srcXrb = (struct xmesa_renderbuffer *)
+ ctx->ReadBuffer->_ColorReadBuffer;
+ struct xmesa_renderbuffer *dstXrb = (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->_ColorDrawBuffers[0][0];
+
+ ASSERT(dpy);
+ ASSERT(gc);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (ctx->Color.DrawBuffer[0] == GL_FRONT &&
+ ctx->Pixel.ReadBuffer == GL_FRONT &&
+ srcXrb->pixmap &&
+ dstXrb->pixmap &&
+ type == GL_COLOR &&
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ /* Note: we don't do any special clipping work here. We could,
+ * but X will do it for us.
+ */
+ srcy = YFLIP(srcXrb, srcy) - height + 1;
+ desty = YFLIP(dstXrb, desty) - height + 1;
+ XCopyArea(dpy, srcXrb->pixmap, dstXrb->pixmap, gc,
+ srcx, srcy, width, height, destx, desty);
+ }
+ else {
+ _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type );
+ }
+}
+#endif /* XFree86Server */
+
+
+
+/*
+ * Every driver should implement a GetString function in order to
+ * return a meaningful GL_RENDERER string.
+ */
+static const GLubyte *
+get_string( GLcontext *ctx, GLenum name )
+{
+ (void) ctx;
+ switch (name) {
+ case GL_RENDERER:
+#ifdef XFree86Server
+ return (const GLubyte *) "Mesa GLX Indirect";
+#else
+ return (const GLubyte *) "Mesa X11";
+#endif
+ case GL_VENDOR:
+#ifdef XFree86Server
+ return (const GLubyte *) "Mesa project: www.mesa3d.org";
+#else
+ return NULL;
+#endif
+ default:
+ return NULL;
+ }
+}
+
+
+/*
+ * We implement the glEnable function only because we care about
+ * dither enable/disable.
+ */
+static void
+enable( GLcontext *ctx, GLenum pname, GLboolean state )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ switch (pname) {
+ case GL_DITHER:
+ if (state)
+ xmesa->pixelformat = xmesa->xm_visual->dithered_pf;
+ else
+ xmesa->pixelformat = xmesa->xm_visual->undithered_pf;
+ break;
+ default:
+ ; /* silence compiler warning */
+ }
+}
+
+
+static void
+clear_color_HPCR_ximage( GLcontext *ctx, const GLfloat color[4] )
+{
+ int i;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+
+ if (color[0] == 0.0 && color[1] == 0.0 && color[2] == 0.0) {
+ /* black is black */
+ MEMSET( xmesa->xm_visual->hpcr_clear_ximage_pattern, 0x0 ,
+ sizeof(xmesa->xm_visual->hpcr_clear_ximage_pattern));
+ }
+ else {
+ /* build clear pattern */
+ for (i=0; i<16; i++) {
+ xmesa->xm_visual->hpcr_clear_ximage_pattern[0][i] =
+ DITHER_HPCR(i, 0,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]);
+ xmesa->xm_visual->hpcr_clear_ximage_pattern[1][i] =
+ DITHER_HPCR(i, 1,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]);
+ }
+ }
+}
+
+
+static void
+clear_color_HPCR_pixmap( GLcontext *ctx, const GLfloat color[4] )
+{
+ int i;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+
+ if (color[0] == 0.0 && color[1] == 0.0 && color[2] == 0.0) {
+ /* black is black */
+ for (i=0; i<16; i++) {
+ XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 0, 0);
+ XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1, 0);
+ }
+ }
+ else {
+ for (i=0; i<16; i++) {
+ XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 0,
+ DITHER_HPCR(i, 0,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]));
+ XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1,
+ DITHER_HPCR(i, 1,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]));
+ }
+ }
+ /* change tile pixmap content */
+ XMesaPutImage(xmesa->display,
+ (XMesaDrawable)xmesa->xm_visual->hpcr_clear_pixmap,
+ XMESA_BUFFER(ctx->DrawBuffer)->cleargc,
+ xmesa->xm_visual->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2);
+}
+
+
+/**
+ * Called when the driver should update it's state, based on the new_state
+ * flags.
+ */
+void
+xmesa_update_state( GLcontext *ctx, GLuint new_state )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *front_xrb, *back_xrb;
+
+ /* Propagate statechange information to swrast and swrast_setup
+ * modules. The X11 driver has no internal GL-dependent state.
+ */
+ _swrast_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+
+ if (ctx->DrawBuffer->Name != 0)
+ return;
+
+ front_xrb = XMESA_BUFFER(ctx->DrawBuffer)->frontxrb;
+ if (front_xrb) {
+ /* XXX check for relevant new_state flags */
+ xmesa_set_renderbuffer_funcs(front_xrb, xmesa->pixelformat,
+ xmesa->xm_visual->BitsPerPixel);
+ /* setup pointers to front and back buffer clear functions */
+ front_xrb->clearFunc = clear_pixmap;
+ }
+
+ back_xrb = XMESA_BUFFER(ctx->DrawBuffer)->backxrb;
+ if (back_xrb) {
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+
+ /* XXX check for relevant new_state flags */
+ xmesa_set_renderbuffer_funcs(back_xrb, xmesa->pixelformat,
+ xmesa->xm_visual->BitsPerPixel);
+
+ if (xmbuf->backxrb->pixmap) {
+ back_xrb->clearFunc = clear_pixmap;
+ }
+ else {
+ switch (xmesa->xm_visual->BitsPerPixel) {
+ case 8:
+ if (xmesa->xm_visual->hpcr_clear_flag) {
+ back_xrb->clearFunc = clear_HPCR_ximage;
+ }
+ else {
+ back_xrb->clearFunc = clear_8bit_ximage;
+ }
+ break;
+ case 16:
+ back_xrb->clearFunc = clear_16bit_ximage;
+ break;
+ case 24:
+ back_xrb->clearFunc = clear_24bit_ximage;
+ break;
+ case 32:
+ back_xrb->clearFunc = clear_32bit_ximage;
+ break;
+ default:
+ back_xrb->clearFunc = clear_nbit_ximage;
+ break;
+ }
+ }
+ }
+
+ if (xmesa->xm_visual->hpcr_clear_flag) {
+ /* this depends on whether we're drawing to the front or back buffer */
+ /* XXX FIX THIS! */
+#if 0
+ if (pixmap) {
+ ctx->Driver.ClearColor = clear_color_HPCR_pixmap;
+ }
+ else {
+ ctx->Driver.ClearColor = clear_color_HPCR_ximage;
+ }
+#else
+ (void) clear_color_HPCR_pixmap;
+ (void) clear_color_HPCR_ximage;
+#endif
+ }
+}
+
+
+
+/**
+ * Called via ctx->Driver.TestProxyTeximage(). Normally, we'd just use
+ * the _mesa_test_proxy_teximage() fallback function, but we're going to
+ * special-case the 3D texture case to allow textures up to 512x512x32
+ * texels.
+ */
+static GLboolean
+test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat, GLenum format, GLenum type,
+ GLint width, GLint height, GLint depth, GLint border)
+{
+ if (target == GL_PROXY_TEXTURE_3D) {
+ /* special case for 3D textures */
+ if (width * height * depth > 512 * 512 * 64 ||
+ width < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ height < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(height - 2 * border) != 1) ||
+ depth < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(depth - 2 * border) != 1)) {
+ /* Bad size, or too many texels */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ }
+ else {
+ /* use the fallback routine for 1D, 2D, cube and rect targets */
+ return _mesa_test_proxy_teximage(ctx, target, level, internalFormat,
+ format, type, width, height, depth,
+ border);
+ }
+}
+
+
+/**
+ * In SW, we don't really compress GL_COMPRESSED_RGB[A] textures!
+ */
+static const struct gl_texture_format *
+choose_tex_format( GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_ARB:
+ return &_mesa_texformat_rgb;
+ case GL_COMPRESSED_RGBA_ARB:
+ return &_mesa_texformat_rgba;
+ default:
+ return _mesa_choose_tex_format(ctx, internalFormat, format, type);
+ }
+}
+
+
+/**
+ * Called by glViewport.
+ * This is a good time for us to poll the current X window size and adjust
+ * our renderbuffers to match the current window size.
+ * Remember, we have no opportunity to respond to conventional
+ * X Resize/StructureNotify events since the X driver has no event loop.
+ * Thus, we poll.
+ * Note that this trick isn't fool-proof. If the application never calls
+ * glViewport, our notion of the current window size may be incorrect.
+ */
+static void
+xmesa_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+{
+#if 1
+ struct gl_framebuffer *fb = ctx->WinSysDrawBuffer;
+ GLuint newWidth, newHeight;
+
+ get_buffer_size(fb, &newWidth, &newHeight);
+ if (newWidth != fb->Width || newHeight != fb->Height) {
+ xmesa_resize_buffers(ctx, fb, newWidth, newHeight);
+ }
+#else
+ /* This also works: */
+ _mesa_ResizeBuffersMESA();
+#endif
+}
+
+
+/**
+ * Initialize the device driver function table with the functions
+ * we implement in this driver.
+ */
+void
+xmesa_init_driver_functions( XMesaVisual xmvisual,
+ struct dd_function_table *driver )
+{
+ driver->GetString = get_string;
+ driver->UpdateState = xmesa_update_state;
+ driver->GetBufferSize = get_buffer_size;
+ driver->Flush = finish_or_flush;
+ driver->Finish = finish_or_flush;
+ driver->ClearIndex = clear_index;
+ driver->ClearColor = clear_color;
+ driver->IndexMask = index_mask;
+ driver->ColorMask = color_mask;
+ driver->Enable = enable;
+ driver->Clear = clear_buffers;
+ driver->ResizeBuffers = xmesa_resize_buffers;
+ driver->Viewport = xmesa_viewport;
+#ifndef XFree86Server
+ driver->CopyPixels = xmesa_CopyPixels;
+ if (xmvisual->undithered_pf == PF_8R8G8B &&
+ xmvisual->dithered_pf == PF_8R8G8B) {
+ driver->DrawPixels = xmesa_DrawPixels_8R8G8B;
+ }
+ else if (xmvisual->undithered_pf == PF_5R6G5B) {
+ driver->DrawPixels = xmesa_DrawPixels_5R6G5B;
+ }
+#endif
+ driver->TestProxyTexImage = test_proxy_teximage;
+#if SWTC
+ driver->ChooseTextureFormat = choose_tex_format;
+#else
+ (void) choose_tex_format;
+#endif
+}
+
+
+#define XMESA_NEW_POINT (_NEW_POINT | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+#define XMESA_NEW_LINE (_NEW_LINE | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+#define XMESA_NEW_TRIANGLE (_NEW_POLYGON | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+
+/* Extend the software rasterizer with our line/point/triangle
+ * functions.
+ */
+void xmesa_register_swrast_functions( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT( ctx );
+
+ swrast->choose_point = xmesa_choose_point;
+ swrast->choose_line = xmesa_choose_line;
+ swrast->choose_triangle = xmesa_choose_triangle;
+
+ swrast->invalidate_point |= XMESA_NEW_POINT;
+ swrast->invalidate_line |= XMESA_NEW_LINE;
+ swrast->invalidate_triangle |= XMESA_NEW_TRIANGLE;
+}
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_line.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_line.c
new file mode 100644
index 000000000..d7c59739d
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_line.c
@@ -0,0 +1,674 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.4
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * This file contains "accelerated" point, line, and triangle functions.
+ * It should be fairly easy to write new special-purpose point, line or
+ * triangle functions and hook them into this module.
+ */
+
+
+#include "glxheader.h"
+#include "depth.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "xmesaP.h"
+
+/* Internal swrast includes:
+ */
+#include "swrast/s_depth.h"
+#include "swrast/s_points.h"
+#include "swrast/s_lines.h"
+#include "swrast/s_context.h"
+
+
+/**********************************************************************/
+/*** Point rendering ***/
+/**********************************************************************/
+
+
+/*
+ * Render an array of points into a pixmap, any pixel format.
+ */
+#if 000
+/* XXX don't use this, it doesn't dither correctly */
+static void draw_points_ANY_pixmap( GLcontext *ctx, const SWvertex *vert )
+{
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xmesa->xm_buffer->buffer;
+ XMesaGC gc = xmesa->xm_buffer->gc;
+
+ if (xmesa->xm_visual->mesa_visual.RGBAflag) {
+ register int x, y;
+ const GLubyte *color = vert->color;
+ unsigned long pixel = xmesa_color_to_pixel( xmesa,
+ color[0], color[1],
+ color[2], color[3],
+ xmesa->pixelformat);
+ XMesaSetForeground( dpy, gc, pixel );
+ x = (GLint) vert->win[0];
+ y = YFLIP( xrb, (GLint) vert->win[1] );
+ XMesaDrawPoint( dpy, buffer, gc, x, y);
+ }
+ else {
+ /* Color index mode */
+ register int x, y;
+ XMesaSetForeground( dpy, gc, vert->index );
+ x = (GLint) vert->win[0];
+ y = YFLIP( xrb, (GLint) vert->win[1] );
+ XMesaDrawPoint( dpy, buffer, gc, x, y);
+ }
+}
+#endif
+
+
+/* Override the swrast point-selection function. Try to use one of
+ * our internal point functions, otherwise fall back to the standard
+ * swrast functions.
+ */
+void xmesa_choose_point( GLcontext *ctx )
+{
+#if 0
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (ctx->RenderMode == GL_RENDER
+ && ctx->Point.Size == 1.0F && !ctx->Point.SmoothFlag
+ && swrast->_RasterMask == 0
+ && !ctx->Texture._EnabledUnits
+ && xmesa->xm_buffer->buffer != XIMAGE) {
+ swrast->Point = draw_points_ANY_pixmap;
+ }
+ else {
+ _swrast_choose_point( ctx );
+ }
+#else
+ _swrast_choose_point( ctx );
+#endif
+}
+
+
+
+/**********************************************************************/
+/*** Line rendering ***/
+/**********************************************************************/
+
+
+#define GET_XRB(XRB) struct xmesa_renderbuffer *XRB = \
+ (struct xmesa_renderbuffer *) ctx->DrawBuffer->_ColorDrawBuffers[0][0]->Wrapped
+
+
+/*
+ * Draw a flat-shaded, PF_TRUECOLOR line into an XImage.
+ */
+#define NAME flat_TRUECOLOR_line
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ unsigned long pixel; \
+ PACK_TRUECOLOR( pixel, color[0], color[1], color[2] );
+#define CLIP_HACK 1
+#define PLOT(X,Y) XMesaPutPixel(xrb->ximage, X, YFLIP(xrb, Y), pixel );
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_8A8B8G8R line into an XImage.
+ */
+#define NAME flat_8A8B8G8R_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLuint pixel = PACK_8B8G8R( color[0], color[1], color[2] );
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = pixel;
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_8A8R8G8B line into an XImage.
+ */
+#define NAME flat_8A8R8G8B_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLuint pixel = PACK_8R8G8B( color[0], color[1], color[2] );
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = pixel;
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_8R8G8B line into an XImage.
+ */
+#define NAME flat_8R8G8B_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLuint pixel = PACK_8R8G8B( color[0], color[1], color[2] );
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = pixel;
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_8R8G8B24 line into an XImage.
+ */
+#define NAME flat_8R8G8B24_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color;
+#define PIXEL_TYPE bgr_t
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR3(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) { \
+ pixelPtr->r = color[RCOMP]; \
+ pixelPtr->g = color[GCOMP]; \
+ pixelPtr->b = color[BCOMP]; \
+}
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_5R6G5B line into an XImage.
+ */
+#define NAME flat_5R6G5B_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLushort pixel = PACK_5R6G5B( color[0], color[1], color[2] );
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = pixel;
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_DITHER_5R6G5B line into an XImage.
+ */
+#define NAME flat_DITHER_5R6G5B_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ const GLubyte *color = vert1->color;
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) PACK_TRUEDITHER( *pixelPtr, X, Y, color[0], color[1], color[2] );
+#include "swrast/s_linetemp.h"
+
+
+
+
+/*
+ * Draw a flat-shaded, PF_DITHER 8-bit line into an XImage.
+ */
+#define NAME flat_DITHER8_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLint r = color[0], g = color[1], b = color[2]; \
+ DITHER_SETUP;
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = DITHER(X,Y,r,g,b);
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_LOOKUP 8-bit line into an XImage.
+ */
+#define NAME flat_LOOKUP8_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLubyte pixel; \
+ LOOKUP_SETUP; \
+ pixel = (GLubyte) LOOKUP( color[0], color[1], color[2] );
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = pixel;
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, PF_HPCR line into an XImage.
+ */
+#define NAME flat_HPCR_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ const GLubyte *color = vert1->color; \
+ GLint r = color[0], g = color[1], b = color[2];
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) *pixelPtr = (GLubyte) DITHER_HPCR(X,Y,r,g,b);
+#include "swrast/s_linetemp.h"
+
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_TRUECOLOR line into an XImage.
+ */
+#define NAME flat_TRUECOLOR_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ const GLubyte *color = vert1->color; \
+ unsigned long pixel; \
+ PACK_TRUECOLOR( pixel, color[0], color[1], color[2] );
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ XMesaPutPixel(xrb->ximage, X, YFLIP(xrb, Y), pixel); \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_8A8B8G8R line into an XImage.
+ */
+#define NAME flat_8A8B8G8R_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLuint pixel = PACK_8B8G8R( color[0], color[1], color[2] );
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = pixel; \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_8A8R8G8B line into an XImage.
+ */
+#define NAME flat_8A8R8G8B_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLuint pixel = PACK_8R8G8B( color[0], color[1], color[2] );
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = pixel; \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_8R8G8B line into an XImage.
+ */
+#define NAME flat_8R8G8B_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLuint pixel = PACK_8R8G8B( color[0], color[1], color[2] );
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = pixel; \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_8R8G8B24 line into an XImage.
+ */
+#define NAME flat_8R8G8B24_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color;
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE bgr_t
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR3(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ pixelPtr->r = color[RCOMP]; \
+ pixelPtr->g = color[GCOMP]; \
+ pixelPtr->b = color[BCOMP]; \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_5R6G5B line into an XImage.
+ */
+#define NAME flat_5R6G5B_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLushort pixel = PACK_5R6G5B( color[0], color[1], color[2] );
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = pixel; \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_DITHER_5R6G5B line into an XImage.
+ */
+#define NAME flat_DITHER_5R6G5B_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ const GLubyte *color = vert1->color;
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ PACK_TRUEDITHER(*pixelPtr, X, Y, color[0], color[1], color[2]); \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_DITHER 8-bit line into an XImage.
+ */
+#define NAME flat_DITHER8_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLint r = color[0], g = color[1], b = color[2]; \
+ DITHER_SETUP;
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = (GLubyte) DITHER( X, Y, r, g, b); \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_LOOKUP 8-bit line into an XImage.
+ */
+#define NAME flat_LOOKUP8_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = vert1->color; \
+ GLubyte pixel; \
+ LOOKUP_SETUP; \
+ pixel = (GLubyte) LOOKUP( color[0], color[1], color[2] );
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = pixel; \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+/*
+ * Draw a flat-shaded, Z-less, PF_HPCR line into an XImage.
+ */
+#define NAME flat_HPCR_z_line
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ const GLubyte *color = vert1->color; \
+ GLint r = color[0], g = color[1], b = color[2];
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X,Y)
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ *pixelPtr = (GLubyte) DITHER_HPCR( X, Y, r, g, b); \
+ }
+#include "swrast/s_linetemp.h"
+
+
+
+#ifndef XFree86Server
+/**
+ * Draw fast, XOR line with XDrawLine in front color buffer.
+ * WARNING: this isn't fully OpenGL conformant because different pixels
+ * will be hit versus using the other line functions.
+ * Don't use the code in X server GLcore module since we need a wrapper
+ * for the XSetLineAttributes() function call.
+ */
+static void
+xor_line(GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1)
+{
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaGC gc = xmesa->xm_buffer->gc;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->_ColorDrawBuffers[0][0];
+ unsigned long pixel = xmesa_color_to_pixel(ctx,
+ vert1->color[0], vert1->color[1],
+ vert1->color[2], vert1->color[3],
+ xmesa->pixelformat);
+ int x0 = (int) vert0->win[0];
+ int y0 = YFLIP(xrb, (GLint) vert0->win[1]);
+ int x1 = (int) vert1->win[0];
+ int y1 = YFLIP(xrb, (GLint) vert1->win[1]);
+ XMesaSetForeground(dpy, gc, pixel);
+ XMesaSetFunction(dpy, gc, GXxor);
+ XSetLineAttributes(dpy, gc, (int) ctx->Line.Width,
+ LineSolid, CapButt, JoinMiter);
+ XDrawLine(dpy, xrb->pixmap, gc, x0, y0, x1, y1);
+ XMesaSetFunction(dpy, gc, GXcopy); /* this gc is used elsewhere */
+}
+#endif /* XFree86Server */
+
+
+static swrast_line_func get_line_func( GLcontext *ctx )
+{
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
+ GET_XRB(xrb);
+
+ if ((ctx->DrawBuffer->_ColorDrawBufferMask[0]
+ & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) == 0)
+ return (swrast_line_func) NULL;
+ if (ctx->RenderMode != GL_RENDER) return (swrast_line_func) NULL;
+ if (ctx->Line.SmoothFlag) return (swrast_line_func) NULL;
+ if (ctx->Texture._EnabledUnits) return (swrast_line_func) NULL;
+ if (ctx->Light.ShadeModel != GL_FLAT) return (swrast_line_func) NULL;
+ if (ctx->Line.StippleFlag) return (swrast_line_func) NULL;
+ if (swrast->_RasterMask & MULTI_DRAW_BIT) return (swrast_line_func) NULL;
+
+ if (xrb->ximage
+ && swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
+ && ctx->Line.Width==1.0F) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ return flat_TRUECOLOR_z_line;
+ case PF_8A8B8G8R:
+ return flat_8A8B8G8R_z_line;
+ case PF_8A8R8G8B:
+ return flat_8A8R8G8B_z_line;
+ case PF_8R8G8B:
+ return flat_8R8G8B_z_line;
+ case PF_8R8G8B24:
+ return flat_8R8G8B24_z_line;
+ case PF_5R6G5B:
+ return flat_5R6G5B_z_line;
+ case PF_Dither_5R6G5B:
+ return flat_DITHER_5R6G5B_z_line;
+ case PF_Dither:
+ return (depth==8) ? flat_DITHER8_z_line : (swrast_line_func) NULL;
+ case PF_Lookup:
+ return (depth==8) ? flat_LOOKUP8_z_line : (swrast_line_func) NULL;
+ case PF_HPCR:
+ return flat_HPCR_z_line;
+ default:
+ return (swrast_line_func)NULL;
+ }
+ }
+ if (xrb->ximage
+ && swrast->_RasterMask==0
+ && ctx->Line.Width==1.0F) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ return flat_TRUECOLOR_line;
+ case PF_8A8B8G8R:
+ return flat_8A8B8G8R_line;
+ case PF_8A8R8G8B:
+ return flat_8A8R8G8B_line;
+ case PF_8R8G8B:
+ return flat_8R8G8B_line;
+ case PF_8R8G8B24:
+ return flat_8R8G8B24_line;
+ case PF_5R6G5B:
+ return flat_5R6G5B_line;
+ case PF_Dither_5R6G5B:
+ return flat_DITHER_5R6G5B_line;
+ case PF_Dither:
+ return (depth==8) ? flat_DITHER8_line : (swrast_line_func) NULL;
+ case PF_Lookup:
+ return (depth==8) ? flat_LOOKUP8_line : (swrast_line_func) NULL;
+ case PF_HPCR:
+ return flat_HPCR_line;
+ default:
+ return (swrast_line_func)NULL;
+ }
+ }
+
+#ifndef XFree86Server
+ if (ctx->DrawBuffer->_NumColorDrawBuffers[0] == 1
+ && ctx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT
+ && swrast->_RasterMask == LOGIC_OP_BIT
+ && ctx->Color.LogicOp == GL_XOR
+ && !ctx->Line.StippleFlag
+ && !ctx->Line.SmoothFlag) {
+ return xor_line;
+ }
+#endif /* XFree86Server */
+
+ return (swrast_line_func) NULL;
+}
+
+
+/**
+ * Override for the swrast line-selection function. Try to use one
+ * of our internal line functions, otherwise fall back to the
+ * standard swrast functions.
+ */
+void
+xmesa_choose_line(GLcontext *ctx)
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (!(swrast->Line = get_line_func( ctx )))
+ _swrast_choose_line( ctx );
+}
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_span.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_span.c
new file mode 100644
index 000000000..780ec98d9
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_span.c
@@ -0,0 +1,4799 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glxheader.h"
+#include "colormac.h"
+#include "context.h"
+#include "depth.h"
+#include "drawpix.h"
+#include "extensions.h"
+#include "macros.h"
+#include "imports.h"
+#include "mtypes.h"
+#include "state.h"
+#include "xmesaP.h"
+
+#include "swrast/swrast.h"
+
+
+/*
+ * The following functions are used to trap XGetImage() calls which
+ * generate BadMatch errors if the drawable isn't mapped.
+ */
+
+#ifndef XFree86Server
+static int caught_xgetimage_error = 0;
+static int (*old_xerror_handler)( XMesaDisplay *dpy, XErrorEvent *ev );
+static unsigned long xgetimage_serial;
+
+/*
+ * This is the error handler which will be called if XGetImage fails.
+ */
+static int xgetimage_error_handler( XMesaDisplay *dpy, XErrorEvent *ev )
+{
+ if (ev->serial==xgetimage_serial && ev->error_code==BadMatch) {
+ /* caught the expected error */
+ caught_xgetimage_error = 0;
+ }
+ else {
+ /* call the original X error handler, if any. otherwise ignore */
+ if (old_xerror_handler) {
+ (*old_xerror_handler)( dpy, ev );
+ }
+ }
+ return 0;
+}
+
+
+/*
+ * Call this right before XGetImage to setup error trap.
+ */
+static void catch_xgetimage_errors( XMesaDisplay *dpy )
+{
+ xgetimage_serial = NextRequest( dpy );
+ old_xerror_handler = XSetErrorHandler( xgetimage_error_handler );
+ caught_xgetimage_error = 0;
+}
+
+
+/*
+ * Call this right after XGetImage to check if an error occured.
+ */
+static int check_xgetimage_errors( void )
+{
+ /* restore old handler */
+ (void) XSetErrorHandler( old_xerror_handler );
+ /* return 0=no error, 1=error caught */
+ return caught_xgetimage_error;
+}
+#endif
+
+
+/*
+ * Read a pixel from an X drawable.
+ */
+static unsigned long read_pixel( XMesaDisplay *dpy,
+ XMesaDrawable d, int x, int y )
+{
+ unsigned long p;
+#ifndef XFree86Server
+ XMesaImage *pixel = NULL;
+ int error;
+
+ catch_xgetimage_errors( dpy );
+ pixel = XGetImage( dpy, d, x, y, 1, 1, AllPlanes, ZPixmap );
+ error = check_xgetimage_errors();
+ if (pixel && !error) {
+ p = XMesaGetPixel( pixel, 0, 0 );
+ }
+ else {
+ p = 0;
+ }
+ if (pixel) {
+ XMesaDestroyImage( pixel );
+ }
+#else
+ (*dpy->GetImage)(d, x, y, 1, 1, ZPixmap, ~0L, (void *)&p);
+#endif
+ return p;
+}
+
+
+
+/*
+ * The Mesa library needs to be able to draw pixels in a number of ways:
+ * 1. RGB vs Color Index
+ * 2. as horizontal spans (polygons, images) vs random locations (points,
+ * lines)
+ * 3. different color per-pixel or same color for all pixels
+ *
+ * Furthermore, the X driver needs to support rendering to 3 possible
+ * "buffers", usually one, but sometimes two at a time:
+ * 1. The front buffer as an X window
+ * 2. The back buffer as a Pixmap
+ * 3. The back buffer as an XImage
+ *
+ * Finally, if the back buffer is an XImage, we can avoid using XPutPixel and
+ * optimize common cases such as 24-bit and 8-bit modes.
+ *
+ * By multiplication, there's at least 48 possible combinations of the above.
+ *
+ * Below are implementations of the most commonly used combinations. They are
+ * accessed through function pointers which get initialized here and are used
+ * directly from the Mesa library. The 8 function pointers directly correspond
+ * to the first 3 cases listed above.
+ *
+ *
+ * The function naming convention is:
+ *
+ * [put|get]_[mono]_[row|values]_[format]_[pixmap|ximage]
+ *
+ * New functions optimized for specific cases can be added without too much
+ * trouble. An example might be the 24-bit TrueColor mode 8A8R8G8B which is
+ * found on IBM RS/6000 X servers.
+ */
+
+
+
+
+/**********************************************************************/
+/*** Write COLOR SPAN functions ***/
+/**********************************************************************/
+
+
+#define PUT_ROW_ARGS \
+ GLcontext *ctx, \
+ struct gl_renderbuffer *rb, \
+ GLuint n, GLint x, GLint y, \
+ const void *values, const GLubyte mask[]
+
+#define RGB_SPAN_ARGS \
+ GLcontext *ctx, \
+ struct gl_renderbuffer *rb, \
+ GLuint n, GLint x, GLint y, \
+ const void *values, const GLubyte mask[]
+
+
+/* NOTE: if mask==NULL, draw all pixels */
+
+
+/*
+ * Write a span of PF_TRUECOLOR pixels to a pixmap.
+ */
+static void put_row_TRUECOLOR_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = XMESA_BUFFER(ctx->DrawBuffer)->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaPutPixel( rowimg, i, 0, p );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_TRUECOLOR pixels to a pixmap.
+ */
+static void put_row_rgb_TRUECOLOR_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ XMesaPutPixel( rowimg, i, 0, p );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+/*
+ * Write a span of PF_TRUEDITHER pixels to a pixmap.
+ */
+static void put_row_TRUEDITHER_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaPutPixel( rowimg, i, 0, p );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_TRUEDITHER pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_TRUEDITHER_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ XMesaPutPixel( rowimg, i, 0, p );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_8A8B8G8R pixels to a pixmap.
+ */
+static void put_row_8A8B8G8R_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8A8B8G8R(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ for (i=0;i<n;i++) {
+ *ptr4++ = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_8A8B8G8R pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_8A8B8G8R_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8B8G8R(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ for (i=0;i<n;i++) {
+ *ptr4++ = PACK_8B8G8R(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+/*
+ * Write a span of PF_8A8R8G8B pixels to a pixmap.
+ */
+static void put_row_8A8R8G8B_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8A8R8G8B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ for (i=0;i<n;i++) {
+ *ptr4++ = PACK_8A8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_8A8R8G8B pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_8A8R8G8B_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8R8G8B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ for (i=0;i<n;i++) {
+ *ptr4++ = PACK_8R8G8B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+/*
+ * Write a span of PF_8R8G8B pixels to a pixmap.
+ */
+static void put_row_8R8G8B_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ for (i=0;i<n;i++) {
+ *ptr4++ = PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_8R8G8B24 pixels to a pixmap.
+ */
+static void put_row_8R8G8B24_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ register GLuint i;
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ register GLuint pixel;
+ static const GLuint shift[4] = {0, 8, 16, 24};
+ register GLuint i = 0;
+ int w = n;
+ while (w > 3) {
+ pixel = rgba[i][BCOMP] /* << shift[0]*/;
+ pixel |= rgba[i][GCOMP] << shift[1];
+ pixel |= rgba[i++][RCOMP] << shift[2];
+ pixel |= rgba[i][BCOMP] << shift[3];
+ *ptr4++ = pixel;
+
+ pixel = rgba[i][GCOMP] /* << shift[0]*/;
+ pixel |= rgba[i++][RCOMP] << shift[1];
+ pixel |= rgba[i][BCOMP] << shift[2];
+ pixel |= rgba[i][GCOMP] << shift[3];
+ *ptr4++ = pixel;
+
+ pixel = rgba[i++][RCOMP]/* << shift[0]*/;
+ pixel |= rgba[i][BCOMP] << shift[1];
+ pixel |= rgba[i][GCOMP] << shift[2];
+ pixel |= rgba[i++][RCOMP] << shift[3];
+ *ptr4++ = pixel;
+
+ w -= 4;
+ }
+ switch (w) {
+ case 3:
+ pixel = 0;
+ pixel |= rgba[i][BCOMP] /*<< shift[0]*/;
+ pixel |= rgba[i][GCOMP] << shift[1];
+ pixel |= rgba[i++][RCOMP] << shift[2];
+ pixel |= rgba[i][BCOMP] << shift[3];
+ *ptr4++ = pixel;
+ pixel = 0;
+ pixel |= rgba[i][GCOMP] /*<< shift[0]*/;
+ pixel |= rgba[i++][RCOMP] << shift[1];
+ pixel |= rgba[i][BCOMP] << shift[2];
+ pixel |= rgba[i][GCOMP] << shift[3];
+ *ptr4++ = pixel;
+ pixel = 0xffffff00 & *ptr4;
+ pixel |= rgba[i][RCOMP] /*<< shift[0]*/;
+ *ptr4 = pixel;
+ break;
+ case 2:
+ pixel = 0;
+ pixel |= rgba[i][BCOMP] /*<< shift[0]*/;
+ pixel |= rgba[i][GCOMP] << shift[1];
+ pixel |= rgba[i++][RCOMP] << shift[2];
+ pixel |= rgba[i][BCOMP] << shift[3];
+ *ptr4++ = pixel;
+ pixel = 0xffff0000 & *ptr4;
+ pixel |= rgba[i][GCOMP] /*<< shift[0]*/;
+ pixel |= rgba[i][RCOMP] << shift[1];
+ *ptr4 = pixel;
+ break;
+ case 1:
+ pixel = 0xff000000 & *ptr4;
+ pixel |= rgba[i][BCOMP] /*<< shift[0]*/;
+ pixel |= rgba[i][GCOMP] << shift[1];
+ pixel |= rgba[i][RCOMP] << shift[2];
+ *ptr4 = pixel;
+ break;
+ case 0:
+ break;
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_8R8G8B pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_8R8G8B_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ for (i=0;i<n;i++) {
+ *ptr4++ = PACK_8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+/*
+ * Write a span of PF_8R8G8B24 pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_8R8G8B24_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ register GLuint i;
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLuint *ptr4 = (GLuint *) rowimg->data;
+ register GLuint pixel;
+ static const GLuint shift[4] = {0, 8, 16, 24};
+ unsigned w = n;
+ register GLuint i = 0;
+ while (w > 3) {
+ pixel = 0;
+ pixel |= rgb[i][BCOMP]/* << shift[0]*/;
+ pixel |= rgb[i][GCOMP] << shift[1];
+ pixel |= rgb[i++][RCOMP] << shift[2];
+ pixel |= rgb[i][BCOMP] <<shift[3];
+ *ptr4++ = pixel;
+
+ pixel = 0;
+ pixel |= rgb[i][GCOMP]/* << shift[0]*/;
+ pixel |= rgb[i++][RCOMP] << shift[1];
+ pixel |= rgb[i][BCOMP] << shift[2];
+ pixel |= rgb[i][GCOMP] << shift[3];
+ *ptr4++ = pixel;
+
+ pixel = 0;
+ pixel |= rgb[i++][RCOMP]/* << shift[0]*/;
+ pixel |= rgb[i][BCOMP] << shift[1];
+ pixel |= rgb[i][GCOMP] << shift[2];
+ pixel |= rgb[i++][RCOMP] << shift[3];
+ *ptr4++ = pixel;
+ w -= 4;
+ }
+ switch (w) {
+ case 3:
+ pixel = 0;
+ pixel |= rgb[i][BCOMP]/* << shift[0]*/;
+ pixel |= rgb[i][GCOMP] << shift[1];
+ pixel |= rgb[i++][RCOMP] << shift[2];
+ pixel |= rgb[i][BCOMP] << shift[3];
+ *ptr4++ = pixel;
+ pixel = 0;
+ pixel |= rgb[i][GCOMP]/* << shift[0]*/;
+ pixel |= rgb[i++][RCOMP] << shift[1];
+ pixel |= rgb[i][BCOMP] << shift[2];
+ pixel |= rgb[i][GCOMP] << shift[3];
+ *ptr4++ = pixel;
+ pixel = *ptr4;
+ pixel &= 0xffffff00;
+ pixel |= rgb[i++][RCOMP]/* << shift[0]*/;
+ *ptr4++ = pixel;
+ break;
+ case 2:
+ pixel = 0;
+ pixel |= rgb[i][BCOMP]/* << shift[0]*/;
+ pixel |= rgb[i][GCOMP] << shift[1];
+ pixel |= rgb[i++][RCOMP] << shift[2];
+ pixel |= rgb[i][BCOMP] << shift[3];
+ *ptr4++ = pixel;
+ pixel = *ptr4;
+ pixel &= 0xffff0000;
+ pixel |= rgb[i][GCOMP]/* << shift[0]*/;
+ pixel |= rgb[i++][RCOMP] << shift[1];
+ *ptr4++ = pixel;
+ break;
+ case 1:
+ pixel = *ptr4;
+ pixel &= 0xff000000;
+ pixel |= rgb[i][BCOMP]/* << shift[0]*/;
+ pixel |= rgb[i][GCOMP] << shift[1];
+ pixel |= rgb[i++][RCOMP] << shift[2];
+ *ptr4++ = pixel;
+ break;
+ case 0:
+ break;
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_5R6G5B pixels to a pixmap.
+ */
+static void put_row_5R6G5B_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLushort *ptr2 = (GLushort *) rowimg->data;
+ for (i=0;i<n;i++) {
+ ptr2[i] = PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER_5R6G5B pixels to a pixmap.
+ */
+static void put_row_DITHER_5R6G5B_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLushort *ptr2 = (GLushort *) rowimg->data;
+ for (i=0;i<n;i++) {
+ PACK_TRUEDITHER( ptr2[i], x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_5R6G5B pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_5R6G5B_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLushort *ptr2 = (GLushort *) rowimg->data;
+ for (i=0;i<n;i++) {
+ ptr2[i] = PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER_5R6G5B pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_DITHER_5R6G5B_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLushort *ptr2 = (GLushort *) rowimg->data;
+ for (i=0;i<n;i++) {
+ PACK_TRUEDITHER( ptr2[i], x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER pixels to a pixmap.
+ */
+static void put_row_DITHER_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ XDITHER_SETUP(y);
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, XDITHER(x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0, XDITHER(x+i, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_DITHER_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ XDITHER_SETUP(y);
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, XDITHER(x, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0, XDITHER(x+i, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_1BIT pixels to a pixmap.
+ */
+static void put_row_1BIT_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ SETUP_1BIT;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER_1BIT( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0,
+ DITHER_1BIT( x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_1BIT pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_1BIT_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ SETUP_1BIT;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER_1BIT(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0,
+ DITHER_1BIT(x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_HPCR pixels to a pixmap.
+ */
+static void put_row_HPCR_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER_HPCR( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLubyte *ptr = (GLubyte *) XMESA_BUFFER(ctx->DrawBuffer)->rowimage->data;
+ for (i=0;i<n;i++) {
+ ptr[i] = DITHER_HPCR( (x+i), y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_HPCR pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_HPCR_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER_HPCR(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ register GLubyte *ptr = (GLubyte *) XMESA_BUFFER(ctx->DrawBuffer)->rowimage->data;
+ for (i=0;i<n;i++) {
+ ptr[i] = DITHER_HPCR( (x+i), y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+/*
+ * Write a span of PF_LOOKUP pixels to a pixmap.
+ */
+static void put_row_LOOKUP_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ LOOKUP_SETUP;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0, LOOKUP(rgba[i][RCOMP],rgba[i][GCOMP],rgba[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_LOOKUP pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_LOOKUP_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ LOOKUP_SETUP;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, LOOKUP( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0, LOOKUP(rgb[i][RCOMP],rgb[i][GCOMP],rgb[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_GRAYSCALE pixels to a pixmap.
+ */
+static void put_row_GRAYSCALE_pixmap( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0, GRAY_RGB(rgba[i][RCOMP],rgba[i][GCOMP],rgba[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+
+/*
+ * Write a span of PF_GRAYSCALE pixels to a pixmap (no alpha).
+ */
+static void put_row_rgb_GRAYSCALE_pixmap( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ XMesaImage *rowimg = XMESA_BUFFER(ctx->DrawBuffer)->rowimage;
+ for (i=0;i<n;i++) {
+ XMesaPutPixel( rowimg, i, 0, GRAY_RGB(rgb[i][RCOMP],rgb[i][GCOMP],rgb[i][BCOMP]) );
+ }
+ XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 );
+ }
+}
+
+/*
+ * Write a span of PF_TRUECOLOR pixels to an XImage.
+ */
+static void put_row_TRUECOLOR_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_TRUECOLOR pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_TRUECOLOR_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_TRUEDITHER pixels to an XImage.
+ */
+static void put_row_TRUEDITHER_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_TRUEDITHER pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_TRUEDITHER_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ XMesaPutPixel( img, x, y, p );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8A8B8G8R-format pixels to an ximage.
+ */
+static void put_row_8A8B8G8R_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLuint *ptr = PIXEL_ADDR4(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8A8B8G8R-format pixels to an ximage (no alpha).
+ */
+static void put_row_rgb_8A8B8G8R_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLuint *ptr = PIXEL_ADDR4(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_8A8B8G8R( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_8A8B8G8R( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 );
+ }
+ }
+}
+
+/*
+ * Write a span of PF_8A8R8G8B-format pixels to an ximage.
+ */
+static void put_row_8A8R8G8B_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLuint *ptr = PIXEL_ADDR4(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_8A8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_8A8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8A8R8G8B-format pixels to an ximage (no alpha).
+ */
+static void put_row_rgb_8A8R8G8B_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLuint *ptr = PIXEL_ADDR4(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_8A8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_8A8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8R8G8B-format pixels to an ximage.
+ */
+static void put_row_8R8G8B_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLuint *ptr = PIXEL_ADDR4(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_8R8G8B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+ }
+ else {
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_8R8G8B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8R8G8B24-format pixels to an ximage.
+ */
+static void put_row_8R8G8B24_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = (GLubyte *) PIXEL_ADDR3(xrb, x, y );
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr4 = (GLuint *) ptr;
+ register GLuint pixel = *ptr4;
+ switch (3 & (int)(ptr - (GLubyte*)ptr4)) {
+ case 0:
+ pixel &= 0xff000000;
+ pixel |= rgba[i][BCOMP];
+ pixel |= rgba[i][GCOMP] << 8;
+ pixel |= rgba[i][RCOMP] << 16;
+ *ptr4 = pixel;
+ break;
+ case 3:
+ pixel &= 0x00ffffff;
+ pixel |= rgba[i][BCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = *ptr4 && 0xffff0000;
+ pixel |= rgba[i][GCOMP];
+ pixel |= rgba[i][RCOMP] << 8;
+ *ptr4 = pixel;
+ break;
+ case 2:
+ pixel &= 0x0000ffff;
+ pixel |= rgba[i][BCOMP] << 16;
+ pixel |= rgba[i][GCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = *ptr4 && 0xffffff00;
+ pixel |= rgba[i][RCOMP];
+ *ptr4 = pixel;
+ break;
+ case 1:
+ pixel &= 0x000000ff;
+ pixel |= rgba[i][BCOMP] << 8;
+ pixel |= rgba[i][GCOMP] << 16;
+ pixel |= rgba[i][RCOMP] << 24;
+ *ptr4 = pixel;
+ break;
+ }
+ }
+ ptr += 3;
+ }
+ }
+ else {
+ /* write all pixels */
+ int w = n;
+ GLuint *ptr4 = (GLuint *) ptr;
+ register GLuint pixel = *ptr4;
+ int index = (int)(ptr - (GLubyte *)ptr4);
+ register GLuint i = 0;
+ switch (index) {
+ case 0:
+ break;
+ case 1:
+ pixel &= 0x00ffffff;
+ pixel |= rgba[i][BCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = *ptr4 && 0xffff0000;
+ pixel |= rgba[i][GCOMP];
+ pixel |= rgba[i++][RCOMP] << 8;
+ *ptr4 = pixel;
+ if (0 == --w)
+ break;
+ case 2:
+ pixel &= 0x0000ffff;
+ pixel |= rgba[i][BCOMP] << 16;
+ pixel |= rgba[i][GCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = *ptr4 && 0xffffff00;
+ pixel |= rgba[i++][RCOMP];
+ *ptr4 = pixel;
+ if (0 == --w)
+ break;
+ case 3:
+ pixel &= 0x000000ff;
+ pixel |= rgba[i][BCOMP] << 8;
+ pixel |= rgba[i][GCOMP] << 16;
+ pixel |= rgba[i++][RCOMP] << 24;
+ *ptr4++ = pixel;
+ if (0 == --w)
+ break;
+ break;
+ }
+ while (w > 3) {
+ pixel = rgba[i][BCOMP];
+ pixel |= rgba[i][GCOMP] << 8;
+ pixel |= rgba[i++][RCOMP] << 16;
+ pixel |= rgba[i][BCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = rgba[i][GCOMP];
+ pixel |= rgba[i++][RCOMP] << 8;
+ pixel |= rgba[i][BCOMP] << 16;
+ pixel |= rgba[i][GCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = rgba[i++][RCOMP];
+ pixel |= rgba[i][BCOMP] << 8;
+ pixel |= rgba[i][GCOMP] << 16;
+ pixel |= rgba[i++][RCOMP] << 24;
+ *ptr4++ = pixel;
+ w -= 4;
+ }
+ switch (w) {
+ case 0:
+ break;
+ case 1:
+ pixel = *ptr4 & 0xff000000;
+ pixel |= rgba[i][BCOMP];
+ pixel |= rgba[i][GCOMP] << 8;
+ pixel |= rgba[i][RCOMP] << 16;
+ *ptr4 = pixel;
+ break;
+ case 2:
+ pixel = rgba[i][BCOMP];
+ pixel |= rgba[i][GCOMP] << 8;
+ pixel |= rgba[i++][RCOMP] << 16;
+ pixel |= rgba[i][BCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = *ptr4 & 0xffff0000;
+ pixel |= rgba[i][GCOMP];
+ pixel |= rgba[i][RCOMP] << 8;
+ *ptr4 = pixel;
+ break;
+ case 3:
+ pixel = rgba[i][BCOMP];
+ pixel |= rgba[i][GCOMP] << 8;
+ pixel |= rgba[i++][RCOMP] << 16;
+ pixel |= rgba[i][BCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = rgba[i][GCOMP];
+ pixel |= rgba[i++][RCOMP] << 8;
+ pixel |= rgba[i][BCOMP] << 16;
+ pixel |= rgba[i][GCOMP] << 24;
+ *ptr4++ = pixel;
+ pixel = *ptr4 & 0xffffff00;
+ pixel |= rgba[i][RCOMP];
+ *ptr4 = pixel;
+ break;
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8R8G8B-format pixels to an ximage (no alpha).
+ */
+static void put_row_rgb_8R8G8B_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLuint *ptr = PIXEL_ADDR4(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_8R8G8B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_8R8G8B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_8R8G8B24-format pixels to an ximage (no alpha).
+ */
+static void put_row_rgb_8R8G8B24_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = (GLubyte *) PIXEL_ADDR3(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ *ptr++ = rgb[i][BCOMP];
+ *ptr++ = rgb[i][GCOMP];
+ *ptr++ = rgb[i][RCOMP];
+ }
+ else {
+ ptr += 3;
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ *ptr++ = rgb[i][BCOMP];
+ *ptr++ = rgb[i][GCOMP];
+ *ptr++ = rgb[i][RCOMP];
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_5R6G5B-format pixels to an ximage.
+ */
+static void put_row_5R6G5B_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLushort *ptr = PIXEL_ADDR2(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */
+ GLuint *ptr32 = (GLuint *) ptr;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+ for (i = 0; i < n; i += 2) {
+ GLuint p0, p1;
+ p0 = PACK_5R6G5B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ p1 = PACK_5R6G5B(rgba[i+1][RCOMP], rgba[i+1][GCOMP], rgba[i+1][BCOMP]);
+ *ptr32++ = (p1 << 16) | p0;
+ }
+ if (extraPixel) {
+ ptr[n] = PACK_5R6G5B(rgba[n][RCOMP], rgba[n][GCOMP], rgba[n][BCOMP]);
+ }
+#else
+ for (i = 0; i < n; i++) {
+ ptr[i] = PACK_5R6G5B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+#endif
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER_5R6G5B-format pixels to an ximage.
+ */
+static void put_row_DITHER_5R6G5B_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint i;
+ register GLushort *ptr = PIXEL_ADDR2(xrb, x, y);
+ const GLint y2 = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ PACK_TRUEDITHER( ptr[i], x, y2, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */
+ GLuint *ptr32 = (GLuint *) ptr;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+ for (i = 0; i < n; i += 2, x += 2) {
+ GLuint p0, p1;
+ PACK_TRUEDITHER( p0, x, y2, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ PACK_TRUEDITHER( p1, x+1, y2, rgba[i+1][RCOMP], rgba[i+1][GCOMP], rgba[i+1][BCOMP] );
+ *ptr32++ = (p1 << 16) | p0;
+ }
+ if (extraPixel) {
+ PACK_TRUEDITHER( ptr[n], x+n, y2, rgba[n][RCOMP], rgba[n][GCOMP], rgba[n][BCOMP]);
+ }
+#else
+ for (i = 0; i < n; i++, x++) {
+ PACK_TRUEDITHER( ptr[i], x, y2, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+#endif
+ }
+}
+
+
+/*
+ * Write a span of PF_5R6G5B-format pixels to an ximage (no alpha).
+ */
+static void put_row_rgb_5R6G5B_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLushort *ptr = PIXEL_ADDR2(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */
+ GLuint *ptr32 = (GLuint *) ptr;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+ for (i = 0; i < n; i += 2) {
+ GLuint p0, p1;
+ p0 = PACK_5R6G5B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ p1 = PACK_5R6G5B(rgb[i+1][RCOMP], rgb[i+1][GCOMP], rgb[i+1][BCOMP]);
+ *ptr32++ = (p1 << 16) | p0;
+ }
+ if (extraPixel) {
+ ptr[n] = PACK_5R6G5B(rgb[n][RCOMP], rgb[n][GCOMP], rgb[n][BCOMP]);
+ }
+#else
+ for (i=0;i<n;i++) {
+ ptr[i] = PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+#endif
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER_5R6G5B-format pixels to an ximage (no alpha).
+ */
+static void put_row_rgb_DITHER_5R6G5B_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint i;
+ register GLushort *ptr = PIXEL_ADDR2(xrb, x, y );
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ PACK_TRUEDITHER( ptr[i], x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */
+ GLuint *ptr32 = (GLuint *) ptr;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+ for (i = 0; i < n; i += 2, x += 2) {
+ GLuint p0, p1;
+ PACK_TRUEDITHER( p0, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ PACK_TRUEDITHER( p1, x+1, y, rgb[i+1][RCOMP], rgb[i+1][GCOMP], rgb[i+1][BCOMP] );
+ *ptr32++ = (p1 << 16) | p0;
+ }
+ if (extraPixel) {
+ PACK_TRUEDITHER( ptr[n], x+n, y, rgb[n][RCOMP], rgb[n][GCOMP], rgb[n][BCOMP]);
+ }
+#else
+ for (i=0;i<n;i++,x++) {
+ PACK_TRUEDITHER( ptr[i], x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+#endif
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER pixels to an XImage.
+ */
+static void put_row_DITHER_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ int yy = YFLIP(xrb, y);
+ XDITHER_SETUP(yy);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, yy, XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, yy, XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_DITHER_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ int yy = YFLIP(xrb, y);
+ XDITHER_SETUP(yy);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, yy, XDITHER( x, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, yy, XDITHER( x, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ }
+ }
+}
+
+
+
+/*
+ * Write a span of 8-bit PF_DITHER pixels to an XImage.
+ */
+static void put_row_DITHER8_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ XDITHER_SETUP(y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ ptr[i] = (GLubyte) XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ for (i=0;i<n;i++,x++) {
+ ptr[i] = (GLubyte) XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+static void put_row_rgb_DITHER8_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ XDITHER_SETUP(y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ ptr[i] = (GLubyte) XDITHER( x, rgb[i][0], rgb[i][1], rgb[i][2] );
+ }
+ }
+ }
+ else {
+ const GLubyte *data = (GLubyte *) rgb;
+ for (i=0;i<n;i++,x++) {
+ /*ptr[i] = XDITHER( x, rgb[i][0], rgb[i][1], rgb[i][2] );*/
+ ptr[i] = (GLubyte) XDITHER( x, data[i+i+i], data[i+i+i+1], data[i+i+i+2] );
+ }
+ }
+}
+
+
+
+/*
+ * Write a span of PF_1BIT pixels to an XImage.
+ */
+static void put_row_1BIT_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ SETUP_1BIT;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel(img, x, y, DITHER_1BIT(x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
+ }
+ }
+ }
+ else {
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, DITHER_1BIT(x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_1BIT pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_1BIT_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ SETUP_1BIT;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel(img, x, y, DITHER_1BIT(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]));
+ }
+ }
+ }
+ else {
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, DITHER_1BIT(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_HPCR pixels to an XImage.
+ */
+static void put_row_HPCR_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ ptr[i] = DITHER_HPCR( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ ptr[i] = DITHER_HPCR( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_HPCR pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_HPCR_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ ptr[i] = DITHER_HPCR( x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ ptr[i] = DITHER_HPCR( x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_LOOKUP pixels to an XImage.
+ */
+static void put_row_LOOKUP_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ LOOKUP_SETUP;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, y, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_LOOKUP pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_LOOKUP_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ LOOKUP_SETUP;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, y, LOOKUP( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, LOOKUP( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of 8-bit PF_LOOKUP pixels to an XImage.
+ */
+static void put_row_LOOKUP8_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ LOOKUP_SETUP;
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ ptr[i] = (GLubyte) LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ ptr[i] = (GLubyte) LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+static void put_row_rgb_LOOKUP8_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ LOOKUP_SETUP;
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ ptr[i] = (GLubyte) LOOKUP( rgb[i][0], rgb[i][1], rgb[i][2] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ const GLubyte *data = (GLubyte *) rgb;
+ for (i=0;i<n;i++,x++) {
+ /*ptr[i] = LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );*/
+ ptr[i] = (GLubyte) LOOKUP( data[i+i+i], data[i+i+i+1], data[i+i+i+2] );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_GRAYSCALE pixels to an XImage.
+ */
+static void put_row_GRAYSCALE_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, y, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_GRAYSCALE pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_GRAYSCALE_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, y, GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of 8-bit PF_GRAYSCALE pixels to an XImage.
+ */
+static void put_row_GRAYSCALE8_ximage( PUT_ROW_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = (GLubyte) GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = (GLubyte) GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write a span of 8-bit PF_GRAYSCALE pixels to an XImage (no alpha).
+ */
+static void put_row_rgb_GRAYSCALE8_ximage( RGB_SPAN_ARGS )
+{
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ if (mask) {
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ ptr[i] = (GLubyte) GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ }
+ }
+ else {
+ /* draw all pixels */
+ for (i=0;i<n;i++) {
+ ptr[i] = (GLubyte) GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ }
+}
+
+
+
+
+/**********************************************************************/
+/*** Write COLOR PIXEL functions ***/
+/**********************************************************************/
+
+
+#define PUT_VALUES_ARGS \
+ GLcontext *ctx, struct gl_renderbuffer *rb, \
+ GLuint n, const GLint x[], const GLint y[], \
+ const void *values, const GLubyte mask[]
+
+
+/*
+ * Write an array of PF_TRUECOLOR pixels to a pixmap.
+ */
+static void put_values_TRUECOLOR_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_TRUEDITHER pixels to a pixmap.
+ */
+static void put_values_TRUEDITHER_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_8A8B8G8R pixels to a pixmap.
+ */
+static void put_values_8A8B8G8R_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+/*
+ * Write an array of PF_8A8R8G8B pixels to a pixmap.
+ */
+static void put_values_8A8R8G8B_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ PACK_8A8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+/*
+ * Write an array of PF_8R8G8B pixels to a pixmap.
+ */
+static void put_values_8R8G8B_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_8R8G8B24 pixels to a pixmap.
+ */
+static void put_values_8R8G8B24_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_5R6G5B pixels to a pixmap.
+ */
+static void put_values_5R6G5B_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_DITHER_5R6G5B pixels to a pixmap.
+ */
+static void put_values_DITHER_5R6G5B_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_DITHER pixels to a pixmap.
+ */
+static void put_values_DITHER_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ DITHER_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER(x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_1BIT pixels to a pixmap.
+ */
+static void put_values_1BIT_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ SETUP_1BIT;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER_1BIT( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_HPCR pixels to a pixmap.
+ */
+static void put_values_HPCR_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc,
+ DITHER_HPCR( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ));
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_LOOKUP pixels to a pixmap.
+ */
+static void put_values_LOOKUP_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ LOOKUP_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_GRAYSCALE pixels to a pixmap.
+ */
+static void put_values_GRAYSCALE_pixmap( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_TRUECOLOR pixels to an ximage.
+ */
+static void put_values_TRUECOLOR_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), p );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_TRUEDITHER pixels to an XImage.
+ */
+static void put_values_TRUEDITHER_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), p );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_8A8B8G8R pixels to an ximage.
+ */
+static void put_values_8A8B8G8R_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr = PIXEL_ADDR4(xrb, x[i], y[i] );
+ *ptr = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ }
+}
+
+/*
+ * Write an array of PF_8A8R8G8B pixels to an ximage.
+ */
+static void put_values_8A8R8G8B_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr = PIXEL_ADDR4(xrb, x[i], y[i]);
+ *ptr = PACK_8A8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_8R8G8B pixels to an ximage.
+ */
+static void put_values_8R8G8B_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr = PIXEL_ADDR4(xrb, x[i], y[i]);
+ *ptr = PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_8R8G8B24 pixels to an ximage.
+ */
+static void put_values_8R8G8B24_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ bgr_t *ptr = PIXEL_ADDR3(xrb, x[i], y[i] );
+ ptr->r = rgba[i][RCOMP];
+ ptr->g = rgba[i][GCOMP];
+ ptr->b = rgba[i][BCOMP];
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_5R6G5B pixels to an ximage.
+ */
+static void put_values_5R6G5B_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLushort *ptr = PIXEL_ADDR2(xrb, x[i], y[i] );
+ *ptr = PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_DITHER_5R6G5B pixels to an ximage.
+ */
+static void put_values_DITHER_5R6G5B_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLushort *ptr = PIXEL_ADDR2(xrb, x[i], y[i] );
+ PACK_TRUEDITHER( *ptr, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_DITHER pixels to an XImage.
+ */
+static void put_values_DITHER_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ DITHER_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]),
+ DITHER( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of 8-bit PF_DITHER pixels to an XImage.
+ */
+static void put_values_DITHER8_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ DITHER_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = (GLubyte) DITHER( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_1BIT pixels to an XImage.
+ */
+static void put_values_1BIT_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ SETUP_1BIT;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]),
+ DITHER_1BIT( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ));
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_HPCR pixels to an XImage.
+ */
+static void put_values_HPCR_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = (GLubyte) DITHER_HPCR( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_LOOKUP pixels to an XImage.
+ */
+static void put_values_LOOKUP_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ LOOKUP_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), LOOKUP(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of 8-bit PF_LOOKUP pixels to an XImage.
+ */
+static void put_values_LOOKUP8_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ LOOKUP_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = (GLubyte) LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_GRAYSCALE pixels to an XImage.
+ */
+static void put_values_GRAYSCALE_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]),
+ GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of 8-bit PF_GRAYSCALE pixels to an XImage.
+ */
+static void put_values_GRAYSCALE8_ximage( PUT_VALUES_ARGS )
+{
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i] );
+ *ptr = (GLubyte) GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ }
+}
+
+
+
+
+/**********************************************************************/
+/*** Write MONO COLOR SPAN functions ***/
+/**********************************************************************/
+
+#define PUT_MONO_ROW_ARGS \
+ GLcontext *ctx, struct gl_renderbuffer *rb, \
+ GLuint n, GLint x, GLint y, const void *value, \
+ const GLubyte mask[]
+
+
+
+/*
+ * Write a span of identical pixels to a pixmap.
+ */
+static void put_mono_row_pixmap( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ const unsigned long pixel = xmesa_color_to_pixel(ctx, color[RCOMP],
+ color[GCOMP], color[BCOMP], color[ACOMP], xmesa->pixelformat);
+ register GLuint i;
+ XMesaSetForeground( xmesa->display, gc, pixel );
+ y = YFLIP(xrb, y);
+
+ /* New code contributed by Jeff Epler and cleaned up by Keith
+ * Whitwell.
+ */
+ for (i = 0; i < n; ) {
+ GLuint start = i;
+
+ /* Identify and emit contiguous rendered pixels
+ */
+ while (i < n && (!mask || mask[i]))
+ i++;
+
+ if (start < i)
+ XMesaFillRectangle( dpy, buffer, gc,
+ (int)(x+start), (int) y,
+ (int)(i-start), 1);
+
+ /* Eat up non-rendered pixels
+ */
+ while (i < n && !mask[i])
+ i++;
+ }
+}
+
+
+
+static void
+put_mono_row_ci_pixmap( PUT_MONO_ROW_ARGS )
+{
+ GLuint colorIndex = *((GLuint *) value);
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ XMesaSetForeground( xmesa->display, gc, colorIndex );
+ y = YFLIP(xrb, y);
+
+ for (i = 0 ; i < n ;) {
+ GLuint start = i;
+
+ /* Identify and emit contiguous rendered pixels
+ */
+ while (i < n && (!mask || mask[i]))
+ i++;
+
+ if (start < i)
+ XMesaFillRectangle( dpy, buffer, gc,
+ (int)(x+start), (int) y,
+ (int)(i-start), 1);
+
+ /* Eat up non-rendered pixels
+ */
+ while (i < n && !mask[i])
+ i++;
+ }
+}
+
+
+
+/*
+ * Write a span of PF_TRUEDITHER pixels to a pixmap.
+ */
+static void put_mono_row_TRUEDITHER_pixmap( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ int yy = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x, yy, r, g, b);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) yy );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_DITHER pixels to a pixmap.
+ */
+static void put_mono_row_DITHER_pixmap( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ int yy = YFLIP(xrb, y);
+ XDITHER_SETUP(yy);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ XMesaSetForeground( dpy, gc, XDITHER( x, r, g, b ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) yy );
+ }
+ }
+}
+
+
+/*
+ * Write a span of PF_1BIT pixels to a pixmap.
+ */
+static void put_mono_row_1BIT_pixmap( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ SETUP_1BIT;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ XMesaSetForeground( dpy, gc, DITHER_1BIT( x, y, r, g, b ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical pixels to an XImage.
+ */
+static void put_mono_row_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ const unsigned long pixel = xmesa_color_to_pixel(ctx, color[RCOMP],
+ color[GCOMP], color[BCOMP], color[ACOMP], xmesa->pixelformat);
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ XMesaPutPixel( img, x, y, pixel );
+ }
+ }
+}
+
+
+static void
+put_mono_row_ci_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLuint colorIndex = *((GLuint *) value);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ XMesaPutPixel( img, x, y, colorIndex );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical PF_TRUEDITHER pixels to an XImage.
+ */
+static void put_mono_row_TRUEDITHER_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaImage *img = xrb->ximage;
+ const GLint r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ GLuint i;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER( p, x+i, y, r, g, b);
+ XMesaPutPixel( img, x+i, y, p );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical 8A8B8G8R pixels to an XImage.
+ */
+static void put_mono_row_8A8B8G8R_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ GLuint i, *ptr;
+ const unsigned long pixel = xmesa_color_to_pixel(ctx, color[RCOMP],
+ color[GCOMP], color[BCOMP], color[ACOMP], xmesa->pixelformat);
+ ptr = PIXEL_ADDR4(xrb, x, y );
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ ptr[i] = pixel;
+ }
+ }
+}
+
+/*
+ * Write a span of identical 8A8R8G8B pixels to an XImage.
+ */
+static void put_mono_row_8A8R8G8B_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ GLuint i, *ptr;
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const unsigned long pixel = xmesa_color_to_pixel(ctx, color[RCOMP],
+ color[GCOMP], color[BCOMP], color[ACOMP], xmesa->pixelformat);
+ ptr = PIXEL_ADDR4(xrb, x, y );
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ ptr[i] = pixel;
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical 8R8G8B pixels to an XImage.
+ */
+static void put_mono_row_8R8G8B_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLuint pixel = PACK_8R8G8B(color[RCOMP], color[GCOMP], color[BCOMP]);
+ GLuint *ptr = PIXEL_ADDR4(xrb, x, y );
+ GLuint i;
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ ptr[i] = pixel;
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical 8R8G8B pixels to an XImage.
+ */
+static void put_mono_row_8R8G8B24_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP];
+ const GLubyte g = color[GCOMP];
+ const GLubyte b = color[BCOMP];
+ GLuint i;
+ bgr_t *ptr = PIXEL_ADDR3(xrb, x, y );
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ ptr[i].r = r;
+ ptr[i].g = g;
+ ptr[i].b = b;
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical DITHER pixels to an XImage.
+ */
+static void put_mono_row_DITHER_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ XMesaImage *img = xrb->ximage;
+ int yy = YFLIP(xrb, y);
+ register GLuint i;
+ XDITHER_SETUP(yy);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ XMesaPutPixel( img, x, yy, XDITHER( x, r, g, b ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical 8-bit DITHER pixels to an XImage.
+ */
+static void put_mono_row_DITHER8_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ register GLuint i;
+ XDITHER_SETUP(y);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ ptr[i] = (GLubyte) XDITHER( x, r, g, b );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical 8-bit LOOKUP pixels to an XImage.
+ */
+static void put_mono_row_LOOKUP8_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ GLubyte pixel;
+ LOOKUP_SETUP;
+ pixel = LOOKUP(color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ ptr[i] = pixel;
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical PF_1BIT pixels to an XImage.
+ */
+static void put_mono_row_1BIT_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ SETUP_1BIT;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ XMesaPutPixel( img, x, y, DITHER_1BIT( x, y, r, g, b ) );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical HPCR pixels to an XImage.
+ */
+static void put_mono_row_HPCR_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLubyte *ptr = PIXEL_ADDR1(xrb, x, y);
+ register GLuint i;
+ for (i=0;i<n;i++,x++) {
+ if (!mask || mask[i]) {
+ ptr[i] = DITHER_HPCR( x, y, r, g, b );
+ }
+ }
+}
+
+
+/*
+ * Write a span of identical 8-bit GRAYSCALE pixels to an XImage.
+ */
+static void put_mono_row_GRAYSCALE8_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte p = GRAY_RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
+ GLubyte *ptr = (GLubyte *) PIXEL_ADDR1(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ ptr[i] = p;
+ }
+ }
+}
+
+
+
+/*
+ * Write a span of identical PF_DITHER_5R6G5B pixels to an XImage.
+ */
+static void put_mono_row_DITHER_5R6G5B_ximage( PUT_MONO_ROW_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ register GLushort *ptr = PIXEL_ADDR2(xrb, x, y );
+ const GLint r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ GLuint i;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++) {
+ if (!mask || mask[i]) {
+ PACK_TRUEDITHER(ptr[i], x+i, y, r, g, b);
+ }
+ }
+}
+
+
+
+/**********************************************************************/
+/*** Write MONO COLOR PIXELS functions ***/
+/**********************************************************************/
+
+#define PUT_MONO_VALUES_ARGS \
+ GLcontext *ctx, struct gl_renderbuffer *rb, \
+ GLuint n, const GLint x[], const GLint y[], \
+ const void *value, const GLubyte mask[]
+
+
+
+/*
+ * Write an array of identical pixels to a pixmap.
+ */
+static void put_mono_values_pixmap( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ const unsigned long pixel = xmesa_color_to_pixel(ctx, color[RCOMP],
+ color[GCOMP], color[BCOMP], color[ACOMP], xmesa->pixelformat);
+ XMesaSetForeground( xmesa->display, gc, pixel );
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaDrawPoint( dpy, buffer, gc,
+ (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+static void
+put_mono_values_ci_pixmap( PUT_MONO_VALUES_ARGS )
+{
+ const GLuint colorIndex = *((GLuint *) value);
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ XMesaSetForeground( xmesa->display, gc, colorIndex );
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaDrawPoint( dpy, buffer, gc,
+ (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_TRUEDITHER pixels to a pixmap.
+ */
+static void put_mono_values_TRUEDITHER_pixmap( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x[i], y[i], r, g, b);
+ XMesaSetForeground( dpy, gc, p );
+ XMesaDrawPoint( dpy, buffer, gc,
+ (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_DITHER pixels to a pixmap.
+ */
+static void put_mono_values_DITHER_pixmap( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ DITHER_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, DITHER( x[i], y[i], r, g, b ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of PF_1BIT pixels to a pixmap.
+ */
+static void put_mono_values_1BIT_pixmap( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ SETUP_1BIT;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, DITHER_1BIT( x[i], y[i], r, g, b ) );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical pixels to an XImage.
+ */
+static void put_mono_values_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ const unsigned long pixel = xmesa_color_to_pixel(ctx, color[RCOMP],
+ color[GCOMP], color[BCOMP], color[ACOMP], xmesa->pixelformat);
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), pixel );
+ }
+ }
+}
+
+
+static void
+put_mono_values_ci_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLuint colorIndex = *((GLuint *) value);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), colorIndex );
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical TRUEDITHER pixels to an XImage.
+ */
+static void put_mono_values_TRUEDITHER_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ const int r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ unsigned long p;
+ PACK_TRUEDITHER(p, x[i], YFLIP(xrb, y[i]), r, g, b);
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), p );
+ }
+ }
+}
+
+
+
+/*
+ * Write an array of identical 8A8B8G8R pixels to an XImage
+ */
+static void put_mono_values_8A8B8G8R_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLuint p = PACK_8A8B8G8R(color[RCOMP], color[GCOMP],
+ color[BCOMP], color[ACOMP]);
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr = PIXEL_ADDR4(xrb, x[i], y[i] );
+ *ptr = p;
+ }
+ }
+}
+
+/*
+ * Write an array of identical 8A8R8G8B pixels to an XImage
+ */
+static void put_mono_values_8A8R8G8B_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLuint p = PACK_8A8R8G8B(color[RCOMP], color[GCOMP],
+ color[BCOMP], color[ACOMP]);
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr = PIXEL_ADDR4(xrb, x[i], y[i] );
+ *ptr = p;
+ }
+ }
+}
+
+/*
+ * Write an array of identical 8R8G8B pixels to an XImage.
+ */
+static void put_mono_values_8R8G8B_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ const GLuint p = PACK_8R8G8B(color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLuint *ptr = PIXEL_ADDR4(xrb, x[i], y[i] );
+ *ptr = p;
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical 8R8G8B pixels to an XImage.
+ */
+static void put_mono_values_8R8G8B24_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ bgr_t *ptr = PIXEL_ADDR3(xrb, x[i], y[i] );
+ ptr->r = r;
+ ptr->g = g;
+ ptr->b = b;
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical PF_DITHER pixels to an XImage.
+ */
+static void put_mono_values_DITHER_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ DITHER_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]), DITHER( x[i], y[i], r, g, b ) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical 8-bit PF_DITHER pixels to an XImage.
+ */
+static void put_mono_values_DITHER8_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ DITHER_SETUP;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = (GLubyte) DITHER( x[i], y[i], r, g, b );
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical 8-bit PF_LOOKUP pixels to an XImage.
+ */
+static void put_mono_values_LOOKUP8_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ GLubyte pixel;
+ LOOKUP_SETUP;
+ pixel = LOOKUP(color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = pixel;
+ }
+ }
+}
+
+
+
+/*
+ * Write an array of identical PF_1BIT pixels to an XImage.
+ */
+static void put_mono_values_1BIT_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ SETUP_1BIT;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x[i], YFLIP(xrb, y[i]),
+ DITHER_1BIT( x[i], y[i], r, g, b ));
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical PF_HPCR pixels to an XImage.
+ */
+static void put_mono_values_HPCR_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const GLubyte r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = DITHER_HPCR( x[i], y[i], r, g, b );
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical 8-bit PF_GRAYSCALE pixels to an XImage.
+ */
+static void put_mono_values_GRAYSCALE8_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ register GLuint i;
+ register GLubyte p = GRAY_RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x[i], y[i]);
+ *ptr = p;
+ }
+ }
+}
+
+
+/*
+ * Write an array of identical PF_DITHER_5R6G5B pixels to an XImage.
+ */
+static void put_mono_values_DITHER_5R6G5B_ximage( PUT_MONO_VALUES_ARGS )
+{
+ const GLubyte *color = (const GLubyte *) value;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const int r = color[RCOMP], g = color[GCOMP], b = color[BCOMP];
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ GLushort *ptr = PIXEL_ADDR2(xrb, x[i], y[i] );
+ PACK_TRUEDITHER(*ptr, x[i], y[i], r, g, b);
+ }
+ }
+}
+
+
+
+/**********************************************************************/
+/*** Write INDEX SPAN functions ***/
+/**********************************************************************/
+
+/*
+ * Write a span of CI pixels to a Pixmap.
+ */
+static void put_row_ci_pixmap( PUT_ROW_ARGS )
+{
+ const GLuint *index = (GLuint *) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, (unsigned long) index[i] );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+ }
+ else {
+ for (i=0;i<n;i++,x++) {
+ XMesaSetForeground( dpy, gc, (unsigned long) index[i] );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y );
+ }
+ }
+}
+
+
+/*
+ * Write a span of CI pixels to an XImage.
+ */
+static void put_row_ci_ximage( PUT_ROW_ARGS )
+{
+ const GLuint *index = (const GLuint *) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ y = YFLIP(xrb, y);
+ if (mask) {
+ for (i=0;i<n;i++,x++) {
+ if (mask[i]) {
+ XMesaPutPixel( img, x, y, (unsigned long) index[i] );
+ }
+ }
+ }
+ else {
+ for (i=0;i<n;i++,x++) {
+ XMesaPutPixel( img, x, y, (unsigned long) index[i] );
+ }
+ }
+}
+
+
+/**********************************************************************/
+/*** Write INDEX PIXELS functions ***/
+/**********************************************************************/
+
+/*
+ * Write an array of CI pixels to a Pixmap.
+ */
+static void put_values_ci_pixmap( PUT_VALUES_ARGS )
+{
+ const GLuint *index = (const GLuint *) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaDrawable buffer = xrb->drawable;
+ XMesaGC gc = XMESA_BUFFER(ctx->DrawBuffer)->gc;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaSetForeground( dpy, gc, (unsigned long) index[i] );
+ XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+/*
+ * Write an array of CI pixels to an XImage.
+ */
+static void put_values_ci_ximage( PUT_VALUES_ARGS )
+{
+ const GLuint *index = (const GLuint *) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaImage *img = xrb->ximage;
+ register GLuint i;
+ for (i=0;i<n;i++) {
+ if (mask[i]) {
+ XMesaPutPixel(img, x[i], YFLIP(xrb, y[i]), (unsigned long) index[i]);
+ }
+ }
+}
+
+
+
+
+/**********************************************************************/
+/***** Pixel reading *****/
+/**********************************************************************/
+
+#ifndef XFree86Server
+/**
+ * Do clip testing prior to calling XGetImage. If any of the region lies
+ * outside the screen's bounds, XGetImage will return NULL.
+ * We use XTranslateCoordinates() to check if that's the case and
+ * adjust the x, y and length parameters accordingly.
+ * \return -1 if span is totally clipped away,
+ * else return number of pixels to skip in the destination array.
+ */
+static int
+clip_for_xgetimage(GLcontext *ctx, GLuint *n, GLint *x, GLint *y)
+{
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer source = XMESA_BUFFER(ctx->DrawBuffer);
+ Window rootWin = RootWindow(xmesa->display, 0);
+ Window child;
+ GLint screenWidth = WidthOfScreen(DefaultScreenOfDisplay(xmesa->display));
+ GLint dx, dy;
+ if (source->type == PBUFFER || source->type == PIXMAP)
+ return 0;
+ XTranslateCoordinates(xmesa->display, source->frontxrb->pixmap, rootWin,
+ *x, *y, &dx, &dy, &child);
+ if (dx >= screenWidth) {
+ /* totally clipped on right */
+ return -1;
+ }
+ if (dx < 0) {
+ /* clipped on left */
+ GLint clip = -dx;
+ if (clip >= (GLint) *n)
+ return -1; /* totally clipped on left */
+ *x += clip;
+ *n -= clip;
+ dx = 0;
+ return clip;
+ }
+ if ((GLint) (dx + *n) > screenWidth) {
+ /* clipped on right */
+ GLint clip = dx + *n - screenWidth;
+ *n -= clip;
+ }
+ return 0;
+}
+#endif
+
+
+/*
+ * Read a horizontal span of color-index pixels.
+ */
+static void
+get_row_ci(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, void *values)
+{
+ GLuint *index = (GLuint *) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ GLuint i;
+
+ y = YFLIP(xrb, y);
+
+ if (xrb->pixmap) {
+#ifndef XFree86Server
+ XMesaImage *span = NULL;
+ int error;
+ int k = clip_for_xgetimage(ctx, &n, &x, &y);
+ if (k < 0)
+ return;
+ index += k;
+
+ catch_xgetimage_errors( xmesa->display );
+ span = XGetImage( xmesa->display, xrb->pixmap,
+ x, y, n, 1, AllPlanes, ZPixmap );
+ error = check_xgetimage_errors();
+ if (span && !error) {
+ for (i=0;i<n;i++) {
+ index[i] = (GLuint) XMesaGetPixel( span, i, 0 );
+ }
+ }
+ else {
+ /* return 0 pixels */
+ for (i=0;i<n;i++) {
+ index[i] = 0;
+ }
+ }
+ if (span) {
+ XMesaDestroyImage( span );
+ }
+#else
+ (*xmesa->display->GetImage)(xrb->drawable,
+ x, y, n, 1, ZPixmap,
+ ~0L, (void *)index);
+#endif
+ }
+ else if (xrb->ximage) {
+ XMesaImage *img = xrb->ximage;
+ for (i=0;i<n;i++,x++) {
+ index[i] = (GLuint) XMesaGetPixel( img, x, y );
+ }
+ }
+}
+
+
+
+/*
+ * Read a horizontal span of color pixels.
+ */
+static void
+get_row_rgba(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, void *values)
+{
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ XMesaBuffer source = XMESA_BUFFER(ctx->DrawBuffer);
+
+ if (xrb->pixmap) {
+ /* Read from Pixmap or Window */
+ XMesaImage *span = NULL;
+ int error;
+#ifdef XFree86Server
+ span = XMesaCreateImage(xmesa->xm_visual->BitsPerPixel, n, 1, NULL);
+ span->data = (char *)MALLOC(span->height * span->bytes_per_line);
+ error = (!span->data);
+ (*xmesa->display->GetImage)(xrb->drawable,
+ x, YFLIP(xrb, y), n, 1, ZPixmap,
+ ~0L, (void *)span->data);
+#else
+ int k;
+ y = YFLIP(xrb, y);
+ k = clip_for_xgetimage(ctx, &n, &x, &y);
+ if (k < 0)
+ return;
+ rgba += k;
+ catch_xgetimage_errors( xmesa->display );
+ span = XGetImage( xmesa->display, xrb->pixmap,
+ x, y, n, 1, AllPlanes, ZPixmap );
+ error = check_xgetimage_errors();
+#endif
+ if (span && !error) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ case PF_Dither_True:
+ {
+ const GLubyte *pixelToR = xmesa->xm_visual->PixelToR;
+ const GLubyte *pixelToG = xmesa->xm_visual->PixelToG;
+ const GLubyte *pixelToB = xmesa->xm_visual->PixelToB;
+ unsigned long rMask = GET_REDMASK(xmesa->xm_visual);
+ unsigned long gMask = GET_GREENMASK(xmesa->xm_visual);
+ unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual);
+ GLint rShift = xmesa->xm_visual->rshift;
+ GLint gShift = xmesa->xm_visual->gshift;
+ GLint bShift = xmesa->xm_visual->bshift;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ p = XMesaGetPixel( span, i, 0 );
+ rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift];
+ rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift];
+ rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_5R6G5B:
+ case PF_Dither_5R6G5B:
+ {
+ const GLubyte *pixelToR = xmesa->xm_visual->PixelToR;
+ const GLubyte *pixelToG = xmesa->xm_visual->PixelToG;
+ const GLubyte *pixelToB = xmesa->xm_visual->PixelToB;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ unsigned long p = XMesaGetPixel( span, i, 0 );
+ /* fast, but not quite accurate
+ rgba[i][RCOMP] = ((p >> 8) & 0xf8);
+ rgba[i][GCOMP] = ((p >> 3) & 0xfc);
+ rgba[i][BCOMP] = ((p << 3) & 0xff);
+ */
+ rgba[i][RCOMP] = pixelToR[p >> 11];
+ rgba[i][GCOMP] = pixelToG[(p >> 5) & 0x3f];
+ rgba[i][BCOMP] = pixelToB[p & 0x1f];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_8A8B8G8R:
+ {
+ const GLuint *ptr4 = (GLuint *) span->data;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLuint p4 = *ptr4++;
+ rgba[i][RCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][ACOMP] = (GLubyte) ((p4 >> 24) & 0xff);
+ }
+ }
+ break;
+ case PF_8A8R8G8B:
+ {
+ const GLuint *ptr4 = (GLuint *) span->data;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLuint p4 = *ptr4++;
+ rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][ACOMP] = (GLubyte) ((p4 >> 24) & 0xff);
+ }
+ }
+ break;
+ case PF_8R8G8B:
+ {
+ const GLuint *ptr4 = (GLuint *) span->data;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLuint p4 = *ptr4++;
+ rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_8R8G8B24:
+ {
+ const bgr_t *ptr3 = (bgr_t *) span->data;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ rgba[i][RCOMP] = ptr3[i].r;
+ rgba[i][GCOMP] = ptr3[i].g;
+ rgba[i][BCOMP] = ptr3[i].b;
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_HPCR:
+ {
+ GLubyte *ptr1 = (GLubyte *) span->data;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLubyte p = *ptr1++;
+ rgba[i][RCOMP] = p & 0xE0;
+ rgba[i][GCOMP] = (p & 0x1C) << 3;
+ rgba[i][BCOMP] = (p & 0x03) << 6;
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_Dither:
+ case PF_Lookup:
+ case PF_Grayscale:
+ {
+ GLubyte *rTable = source->pixel_to_r;
+ GLubyte *gTable = source->pixel_to_g;
+ GLubyte *bTable = source->pixel_to_b;
+ if (GET_VISUAL_DEPTH(xmesa->xm_visual)==8) {
+ const GLubyte *ptr1 = (GLubyte *) span->data;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ unsigned long p = *ptr1++;
+ rgba[i][RCOMP] = rTable[p];
+ rgba[i][GCOMP] = gTable[p];
+ rgba[i][BCOMP] = bTable[p];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ else {
+ GLuint i;
+ for (i=0;i<n;i++) {
+ unsigned long p = XMesaGetPixel( span, i, 0 );
+ rgba[i][RCOMP] = rTable[p];
+ rgba[i][GCOMP] = gTable[p];
+ rgba[i][BCOMP] = bTable[p];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ }
+ break;
+ case PF_1Bit:
+ {
+ int bitFlip = xmesa->xm_visual->bitFlip;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ p = XMesaGetPixel( span, i, 0 ) ^ bitFlip;
+ rgba[i][RCOMP] = (GLubyte) (p * 255);
+ rgba[i][GCOMP] = (GLubyte) (p * 255);
+ rgba[i][BCOMP] = (GLubyte) (p * 255);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL,"Problem in DD.read_color_span (1)");
+ return;
+ }
+ }
+ else {
+ /* return black pixels */
+ GLuint i;
+ for (i=0;i<n;i++) {
+ rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = rgba[i][ACOMP] = 0;
+ }
+ }
+ if (span) {
+ XMesaDestroyImage( span );
+ }
+ }
+ else if (xrb->ximage) {
+ /* Read from XImage back buffer */
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ case PF_Dither_True:
+ {
+ const GLubyte *pixelToR = xmesa->xm_visual->PixelToR;
+ const GLubyte *pixelToG = xmesa->xm_visual->PixelToG;
+ const GLubyte *pixelToB = xmesa->xm_visual->PixelToB;
+ unsigned long rMask = GET_REDMASK(xmesa->xm_visual);
+ unsigned long gMask = GET_GREENMASK(xmesa->xm_visual);
+ unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual);
+ GLint rShift = xmesa->xm_visual->rshift;
+ GLint gShift = xmesa->xm_visual->gshift;
+ GLint bShift = xmesa->xm_visual->bshift;
+ XMesaImage *img = xrb->ximage;
+ GLuint i;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ p = XMesaGetPixel( img, x+i, y );
+ rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift];
+ rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift];
+ rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_5R6G5B:
+ case PF_Dither_5R6G5B:
+ {
+ const GLubyte *pixelToR = xmesa->xm_visual->PixelToR;
+ const GLubyte *pixelToG = xmesa->xm_visual->PixelToG;
+ const GLubyte *pixelToB = xmesa->xm_visual->PixelToB;
+ const GLushort *ptr2 = PIXEL_ADDR2(xrb, x, y);
+ GLuint i;
+#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */
+ const GLuint *ptr4 = (const GLuint *) ptr2;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+ for (i = 0; i < n; i += 2) {
+ const GLuint p = *ptr4++;
+ const GLuint p0 = p & 0xffff;
+ const GLuint p1 = p >> 16;
+ /* fast, but not quite accurate
+ rgba[i][RCOMP] = ((p >> 8) & 0xf8);
+ rgba[i][GCOMP] = ((p >> 3) & 0xfc);
+ rgba[i][BCOMP] = ((p << 3) & 0xff);
+ */
+ rgba[i][RCOMP] = pixelToR[p0 >> 11];
+ rgba[i][GCOMP] = pixelToG[(p0 >> 5) & 0x3f];
+ rgba[i][BCOMP] = pixelToB[p0 & 0x1f];
+ rgba[i][ACOMP] = 255;
+ rgba[i+1][RCOMP] = pixelToR[p1 >> 11];
+ rgba[i+1][GCOMP] = pixelToG[(p1 >> 5) & 0x3f];
+ rgba[i+1][BCOMP] = pixelToB[p1 & 0x1f];
+ rgba[i+1][ACOMP] = 255;
+ }
+ if (extraPixel) {
+ GLushort p = ptr2[n];
+ rgba[n][RCOMP] = pixelToR[p >> 11];
+ rgba[n][GCOMP] = pixelToG[(p >> 5) & 0x3f];
+ rgba[n][BCOMP] = pixelToB[p & 0x1f];
+ rgba[n][ACOMP] = 255;
+ }
+#else
+ for (i = 0; i < n; i++) {
+ const GLushort p = ptr2[i];
+ rgba[i][RCOMP] = pixelToR[p >> 11];
+ rgba[i][GCOMP] = pixelToG[(p >> 5) & 0x3f];
+ rgba[i][BCOMP] = pixelToB[p & 0x1f];
+ rgba[i][ACOMP] = 255;
+ }
+#endif
+ }
+ break;
+ case PF_8A8B8G8R:
+ {
+ const GLuint *ptr4 = PIXEL_ADDR4(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLuint p4 = *ptr4++;
+ rgba[i][RCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][ACOMP] = (GLint) ((p4 >> 24) & 0xff);
+ }
+ }
+ break;
+ case PF_8A8R8G8B:
+ {
+ const GLuint *ptr4 = PIXEL_ADDR4(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLuint p4 = *ptr4++;
+ rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][ACOMP] = (GLint) ((p4 >> 24) & 0xff);
+ }
+ }
+ break;
+ case PF_8R8G8B:
+ {
+ const GLuint *ptr4 = PIXEL_ADDR4(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLuint p4 = *ptr4++;
+ rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_8R8G8B24:
+ {
+ const bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ rgba[i][RCOMP] = ptr3[i].r;
+ rgba[i][GCOMP] = ptr3[i].g;
+ rgba[i][BCOMP] = ptr3[i].b;
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_HPCR:
+ {
+ const GLubyte *ptr1 = PIXEL_ADDR1(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ GLubyte p = *ptr1++;
+ rgba[i][RCOMP] = p & 0xE0;
+ rgba[i][GCOMP] = (p & 0x1C) << 3;
+ rgba[i][BCOMP] = (p & 0x03) << 6;
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_Dither:
+ case PF_Lookup:
+ case PF_Grayscale:
+ {
+ const GLubyte *rTable = source->pixel_to_r;
+ const GLubyte *gTable = source->pixel_to_g;
+ const GLubyte *bTable = source->pixel_to_b;
+ if (GET_VISUAL_DEPTH(xmesa->xm_visual)==8) {
+ GLubyte *ptr1 = PIXEL_ADDR1(xrb, x, y);
+ GLuint i;
+ for (i=0;i<n;i++) {
+ unsigned long p = *ptr1++;
+ rgba[i][RCOMP] = rTable[p];
+ rgba[i][GCOMP] = gTable[p];
+ rgba[i][BCOMP] = bTable[p];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ else {
+ XMesaImage *img = xrb->ximage;
+ GLuint i;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ unsigned long p = XMesaGetPixel( img, x, y );
+ rgba[i][RCOMP] = rTable[p];
+ rgba[i][GCOMP] = gTable[p];
+ rgba[i][BCOMP] = bTable[p];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ }
+ break;
+ case PF_1Bit:
+ {
+ XMesaImage *img = xrb->ximage;
+ int bitFlip = xmesa->xm_visual->bitFlip;
+ GLuint i;
+ y = YFLIP(xrb, y);
+ for (i=0;i<n;i++,x++) {
+ unsigned long p;
+ p = XMesaGetPixel( img, x, y ) ^ bitFlip;
+ rgba[i][RCOMP] = (GLubyte) (p * 255);
+ rgba[i][GCOMP] = (GLubyte) (p * 255);
+ rgba[i][BCOMP] = (GLubyte) (p * 255);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL,"Problem in DD.read_color_span (2)");
+ return;
+ }
+ }
+}
+
+
+
+/*
+ * Read an array of color index pixels.
+ */
+static void
+get_values_ci(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[], void *values)
+{
+ GLuint *indx = (GLuint *) values;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ GLuint i;
+ if (xrb->pixmap) {
+ for (i=0;i<n;i++) {
+ indx[i] = (GLuint) read_pixel( xmesa->display, xrb->drawable,
+ x[i], YFLIP(xrb, y[i]) );
+ }
+ }
+ else if (xrb->ximage) {
+ XMesaImage *img = xrb->ximage;
+ for (i=0;i<n;i++) {
+ indx[i] = (GLuint) XMesaGetPixel( img, x[i], YFLIP(xrb, y[i]) );
+ }
+ }
+}
+
+
+
+static void
+get_values_rgba(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[], void *values)
+{
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ struct xmesa_renderbuffer *xrb = (struct xmesa_renderbuffer *) rb;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ XMesaBuffer source = XMESA_BUFFER(ctx->DrawBuffer);
+ register GLuint i;
+
+ if (xrb->pixmap) {
+ XMesaDrawable buffer = xrb->drawable;
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ case PF_Dither_True:
+ case PF_5R6G5B:
+ case PF_Dither_5R6G5B:
+ {
+ unsigned long rMask = GET_REDMASK(xmesa->xm_visual);
+ unsigned long gMask = GET_GREENMASK(xmesa->xm_visual);
+ unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual);
+ GLubyte *pixelToR = xmesa->xm_visual->PixelToR;
+ GLubyte *pixelToG = xmesa->xm_visual->PixelToG;
+ GLubyte *pixelToB = xmesa->xm_visual->PixelToB;
+ GLint rShift = xmesa->xm_visual->rshift;
+ GLint gShift = xmesa->xm_visual->gshift;
+ GLint bShift = xmesa->xm_visual->bshift;
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift];
+ rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift];
+ rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_8A8B8G8R:
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = (GLubyte) ( p & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ((p >> 16) & 0xff);
+ rgba[i][ACOMP] = (GLubyte) ((p >> 24) & 0xff);
+ }
+ break;
+ case PF_8A8R8G8B:
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = (GLubyte) ((p >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p & 0xff);
+ rgba[i][ACOMP] = (GLubyte) ((p >> 24) & 0xff);
+ }
+ break;
+ case PF_8R8G8B:
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = (GLubyte) ((p >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p & 0xff);
+ rgba[i][ACOMP] = 255;
+ }
+ break;
+ case PF_8R8G8B24:
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = (GLubyte) ((p >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p & 0xff);
+ rgba[i][ACOMP] = 255;
+ }
+ break;
+ case PF_HPCR:
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = (GLubyte) ( p & 0xE0 );
+ rgba[i][GCOMP] = (GLubyte) ((p & 0x1C) << 3);
+ rgba[i][BCOMP] = (GLubyte) ((p & 0x03) << 6);
+ rgba[i][ACOMP] = (GLubyte) 255;
+ }
+ break;
+ case PF_Dither:
+ case PF_Lookup:
+ case PF_Grayscale:
+ {
+ GLubyte *rTable = source->pixel_to_r;
+ GLubyte *gTable = source->pixel_to_g;
+ GLubyte *bTable = source->pixel_to_b;
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = rTable[p];
+ rgba[i][GCOMP] = gTable[p];
+ rgba[i][BCOMP] = bTable[p];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_1Bit:
+ {
+ int bitFlip = xmesa->xm_visual->bitFlip;
+ for (i=0;i<n;i++) {
+ unsigned long p = read_pixel( dpy, buffer,
+ x[i], YFLIP(xrb, y[i])) ^ bitFlip;
+ rgba[i][RCOMP] = (GLubyte) (p * 255);
+ rgba[i][GCOMP] = (GLubyte) (p * 255);
+ rgba[i][BCOMP] = (GLubyte) (p * 255);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL,"Problem in DD.read_color_pixels (1)");
+ return;
+ }
+ }
+ else if (xrb->ximage) {
+ /* Read from XImage back buffer */
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ case PF_Dither_True:
+ case PF_5R6G5B:
+ case PF_Dither_5R6G5B:
+ {
+ unsigned long rMask = GET_REDMASK(xmesa->xm_visual);
+ unsigned long gMask = GET_GREENMASK(xmesa->xm_visual);
+ unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual);
+ GLubyte *pixelToR = xmesa->xm_visual->PixelToR;
+ GLubyte *pixelToG = xmesa->xm_visual->PixelToG;
+ GLubyte *pixelToB = xmesa->xm_visual->PixelToB;
+ GLint rShift = xmesa->xm_visual->rshift;
+ GLint gShift = xmesa->xm_visual->gshift;
+ GLint bShift = xmesa->xm_visual->bshift;
+ XMesaImage *img = xrb->ximage;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ p = XMesaGetPixel( img, x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift];
+ rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift];
+ rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_8A8B8G8R:
+ for (i=0;i<n;i++) {
+ GLuint *ptr4 = PIXEL_ADDR4(xrb, x[i], y[i]);
+ GLuint p4 = *ptr4;
+ rgba[i][RCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][ACOMP] = (GLubyte) ((p4 >> 24) & 0xff);
+ }
+ break;
+ case PF_8A8R8G8B:
+ for (i=0;i<n;i++) {
+ GLuint *ptr4 = PIXEL_ADDR4(xrb, x[i], y[i]);
+ GLuint p4 = *ptr4;
+ rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][ACOMP] = (GLubyte) ((p4 >> 24) & 0xff);
+ }
+ break;
+ case PF_8R8G8B:
+ for (i=0;i<n;i++) {
+ GLuint *ptr4 = PIXEL_ADDR4(xrb, x[i], y[i]);
+ GLuint p4 = *ptr4;
+ rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff);
+ rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff);
+ rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff);
+ rgba[i][ACOMP] = 255;
+ }
+ break;
+ case PF_8R8G8B24:
+ for (i=0;i<n;i++) {
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, x[i], y[i]);
+ rgba[i][RCOMP] = ptr3->r;
+ rgba[i][GCOMP] = ptr3->g;
+ rgba[i][BCOMP] = ptr3->b;
+ rgba[i][ACOMP] = 255;
+ }
+ break;
+ case PF_HPCR:
+ for (i=0;i<n;i++) {
+ GLubyte *ptr1 = PIXEL_ADDR1(xrb, x[i], y[i]);
+ GLubyte p = *ptr1;
+ rgba[i][RCOMP] = p & 0xE0;
+ rgba[i][GCOMP] = (p & 0x1C) << 3;
+ rgba[i][BCOMP] = (p & 0x03) << 6;
+ rgba[i][ACOMP] = 255;
+ }
+ break;
+ case PF_Dither:
+ case PF_Lookup:
+ case PF_Grayscale:
+ {
+ GLubyte *rTable = source->pixel_to_r;
+ GLubyte *gTable = source->pixel_to_g;
+ GLubyte *bTable = source->pixel_to_b;
+ XMesaImage *img = xrb->ximage;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ p = XMesaGetPixel( img, x[i], YFLIP(xrb, y[i]) );
+ rgba[i][RCOMP] = rTable[p];
+ rgba[i][GCOMP] = gTable[p];
+ rgba[i][BCOMP] = bTable[p];
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ case PF_1Bit:
+ {
+ XMesaImage *img = xrb->ximage;
+ int bitFlip = xmesa->xm_visual->bitFlip;
+ for (i=0;i<n;i++) {
+ unsigned long p;
+ p = XMesaGetPixel( img, x[i], YFLIP(xrb, y[i]) ) ^ bitFlip;
+ rgba[i][RCOMP] = (GLubyte) (p * 255);
+ rgba[i][GCOMP] = (GLubyte) (p * 255);
+ rgba[i][BCOMP] = (GLubyte) (p * 255);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL,"Problem in DD.read_color_pixels (1)");
+ return;
+ }
+ }
+}
+
+
+/**
+ * Initialize the renderbuffer's PutRow, GetRow, etc. functions.
+ * This would generally only need to be called once when the renderbuffer
+ * is created. However, we can change pixel formats on the fly if dithering
+ * is enabled/disabled. Therefore, we may call this more often than that.
+ */
+void
+xmesa_set_renderbuffer_funcs(struct xmesa_renderbuffer *xrb,
+ enum pixel_format pixelformat, GLint depth)
+{
+ const GLboolean pixmap = xrb->pixmap ? GL_TRUE : GL_FALSE;
+
+ switch (pixelformat) {
+ case PF_Index:
+ ASSERT(xrb->Base.DataType == GL_UNSIGNED_INT);
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_ci_pixmap;
+ xrb->Base.PutRowRGB = NULL;
+ xrb->Base.PutMonoRow = put_mono_row_ci_pixmap;
+ xrb->Base.PutValues = put_values_ci_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_ci_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_ci_ximage;
+ xrb->Base.PutRowRGB = NULL;
+ xrb->Base.PutMonoRow = put_mono_row_ci_ximage;
+ xrb->Base.PutValues = put_values_ci_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_ci_ximage;
+ }
+ break;
+ case PF_Truecolor:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_TRUECOLOR_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_TRUECOLOR_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_TRUECOLOR_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_TRUECOLOR_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_TRUECOLOR_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_ximage;
+ xrb->Base.PutValues = put_values_TRUECOLOR_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_ximage;
+ }
+ break;
+ case PF_Dither_True:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_TRUEDITHER_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_TRUEDITHER_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_TRUEDITHER_pixmap;
+ xrb->Base.PutValues = put_values_TRUEDITHER_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_TRUEDITHER_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_TRUEDITHER_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_TRUEDITHER_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_TRUEDITHER_ximage;
+ xrb->Base.PutValues = put_values_TRUEDITHER_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_TRUEDITHER_ximage;
+ }
+ break;
+ case PF_8A8B8G8R:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_8A8B8G8R_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_8A8B8G8R_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_8A8B8G8R_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_8A8B8G8R_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_8A8B8G8R_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_8A8B8G8R_ximage;
+ xrb->Base.PutValues = put_values_8A8B8G8R_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_8A8B8G8R_ximage;
+ }
+ break;
+ case PF_8A8R8G8B:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_8A8R8G8B_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_8A8R8G8B_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_8A8R8G8B_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_8A8R8G8B_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_8A8R8G8B_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_8A8R8G8B_ximage;
+ xrb->Base.PutValues = put_values_8A8R8G8B_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_8A8R8G8B_ximage;
+ }
+ break;
+ case PF_8R8G8B:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_8R8G8B_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_8R8G8B_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_8R8G8B_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_8R8G8B_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_8R8G8B_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_8R8G8B_ximage;
+ xrb->Base.PutValues = put_values_8R8G8B_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_8R8G8B_ximage;
+ }
+ break;
+ case PF_8R8G8B24:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_8R8G8B24_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_8R8G8B24_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_8R8G8B24_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_8R8G8B24_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_8R8G8B24_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_8R8G8B24_ximage;
+ xrb->Base.PutValues = put_values_8R8G8B24_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_8R8G8B24_ximage;
+ }
+ break;
+ case PF_5R6G5B:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_5R6G5B_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_5R6G5B_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_5R6G5B_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_5R6G5B_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_5R6G5B_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_ximage;
+ xrb->Base.PutValues = put_values_5R6G5B_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_ximage;
+ }
+ break;
+ case PF_Dither_5R6G5B:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_DITHER_5R6G5B_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_DITHER_5R6G5B_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_TRUEDITHER_pixmap;
+ xrb->Base.PutValues = put_values_DITHER_5R6G5B_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_TRUEDITHER_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_DITHER_5R6G5B_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_DITHER_5R6G5B_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_DITHER_5R6G5B_ximage;
+ xrb->Base.PutValues = put_values_DITHER_5R6G5B_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_DITHER_5R6G5B_ximage;
+ }
+ break;
+ case PF_Dither:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_DITHER_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_DITHER_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_DITHER_pixmap;
+ xrb->Base.PutValues = put_values_DITHER_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_DITHER_pixmap;
+ }
+ else {
+ if (depth == 8) {
+ xrb->Base.PutRow = put_row_DITHER8_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_DITHER8_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_DITHER8_ximage;
+ xrb->Base.PutValues = put_values_DITHER8_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_DITHER8_ximage;
+ }
+ else {
+ xrb->Base.PutRow = put_row_DITHER_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_DITHER_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_DITHER_ximage;
+ xrb->Base.PutValues = put_values_DITHER_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_DITHER_ximage;
+ }
+ }
+ break;
+ case PF_1Bit:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_1BIT_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_1BIT_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_1BIT_pixmap;
+ xrb->Base.PutValues = put_values_1BIT_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_1BIT_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_1BIT_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_1BIT_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_1BIT_ximage;
+ xrb->Base.PutValues = put_values_1BIT_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_1BIT_ximage;
+ }
+ break;
+ case PF_HPCR:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_HPCR_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_HPCR_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_HPCR_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ xrb->Base.PutRow = put_row_HPCR_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_HPCR_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_HPCR_ximage;
+ xrb->Base.PutValues = put_values_HPCR_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_HPCR_ximage;
+ }
+ break;
+ case PF_Lookup:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_LOOKUP_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_LOOKUP_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_LOOKUP_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ if (depth==8) {
+ xrb->Base.PutRow = put_row_LOOKUP8_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_LOOKUP8_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_LOOKUP8_ximage;
+ xrb->Base.PutValues = put_values_LOOKUP8_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_LOOKUP8_ximage;
+ }
+ else {
+ xrb->Base.PutRow = put_row_LOOKUP_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_LOOKUP_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_ximage;
+ xrb->Base.PutValues = put_values_LOOKUP_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_ximage;
+ }
+ }
+ break;
+ case PF_Grayscale:
+ if (pixmap) {
+ xrb->Base.PutRow = put_row_GRAYSCALE_pixmap;
+ xrb->Base.PutRowRGB = put_row_rgb_GRAYSCALE_pixmap;
+ xrb->Base.PutMonoRow = put_mono_row_pixmap;
+ xrb->Base.PutValues = put_values_GRAYSCALE_pixmap;
+ xrb->Base.PutMonoValues = put_mono_values_pixmap;
+ }
+ else {
+ if (depth == 8) {
+ xrb->Base.PutRow = put_row_GRAYSCALE8_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_GRAYSCALE8_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_GRAYSCALE8_ximage;
+ xrb->Base.PutValues = put_values_GRAYSCALE8_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_GRAYSCALE8_ximage;
+ }
+ else {
+ xrb->Base.PutRow = put_row_GRAYSCALE_ximage;
+ xrb->Base.PutRowRGB = put_row_rgb_GRAYSCALE_ximage;
+ xrb->Base.PutMonoRow = put_mono_row_ximage;
+ xrb->Base.PutValues = put_values_GRAYSCALE_ximage;
+ xrb->Base.PutMonoValues = put_mono_values_ximage;
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "Bad pixel format in xmesa_update_state (1)");
+ return;
+ }
+
+
+ /* Get functions */
+ if (pixelformat == PF_Index) {
+ xrb->Base.GetRow = get_row_ci;
+ xrb->Base.GetValues = get_values_ci;
+ }
+ else {
+ xrb->Base.GetRow = get_row_rgba;
+ xrb->Base.GetValues = get_values_rgba;
+ }
+}
+
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_tri.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_tri.c
new file mode 100644
index 000000000..87989f46f
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xm_tri.c
@@ -0,0 +1,1623 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * This file contains "accelerated" triangle functions. It should be
+ * fairly easy to write new special-purpose triangle functions and hook
+ * them into this module.
+ */
+
+
+#include "glxheader.h"
+#include "depth.h"
+#include "macros.h"
+#include "imports.h"
+#include "mtypes.h"
+#include "xmesaP.h"
+
+/* Internal swrast includes:
+ */
+#include "swrast/s_context.h"
+#include "swrast/s_depth.h"
+#include "swrast/s_triangle.h"
+
+
+#define GET_XRB(XRB) struct xmesa_renderbuffer *XRB = \
+ (struct xmesa_renderbuffer *) ctx->DrawBuffer->_ColorDrawBuffers[0][0]->Wrapped
+
+
+/**********************************************************************/
+/*** Triangle rendering ***/
+/**********************************************************************/
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_TRUECOLOR triangle.
+ */
+#define NAME smooth_TRUECOLOR_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb);
+
+#define RENDER_SPAN( span ) \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ GLuint i; \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ unsigned long p; \
+ PACK_TRUECOLOR(p, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ XMesaPutPixel(xrb->ximage, x, y, p); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_8A8B8G8R triangle.
+ */
+#define NAME smooth_8A8B8G8R_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = PACK_8B8G8R(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_8A8R8G8B triangle.
+ */
+#define NAME smooth_8A8R8G8B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = PACK_8R8G8B(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_8R8G8B triangle.
+ */
+#define NAME smooth_8R8G8B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = PACK_8R8G8B(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_8R8G8B24 triangle.
+ */
+#define NAME smooth_8R8G8B24_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR3(xrb, X, Y)
+#define PIXEL_TYPE bgr_t
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ PIXEL_TYPE *ptr = pRow + i; \
+ ptr->r = FixedToInt(span.red); \
+ ptr->g = FixedToInt(span.green); \
+ ptr->b = FixedToInt(span.blue); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_TRUEDITHER triangle.
+ */
+#define NAME smooth_TRUEDITHER_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ unsigned long p; \
+ PACK_TRUEDITHER(p, x, y, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ XMesaPutPixel(xrb->ximage, x, y, p); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_5R6G5B triangle.
+ */
+#define NAME smooth_5R6G5B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = PACK_5R6G5B(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_DITHER_5R6G5B triangle.
+ */
+#define NAME smooth_DITHER_5R6G5B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ PACK_TRUEDITHER(pRow[i], x, y, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, 8-bit, PF_DITHER8 triangle.
+ */
+#define NAME smooth_DITHER8_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ XDITHER_SETUP(y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) XDITHER(x, FixedToInt(span.red),\
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, PF_DITHER triangle.
+ */
+#define NAME smooth_DITHER_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ XDITHER_SETUP(y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ unsigned long p = XDITHER(x, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ XMesaPutPixel(img, x, y, p); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, 8-bit PF_LOOKUP triangle.
+ */
+#define NAME smooth_LOOKUP8_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ LOOKUP_SETUP; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = LOOKUP(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, depth-buffered, 8-bit PF_HPCR triangle.
+ */
+#define NAME smooth_HPCR_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = DITHER_HPCR(x, y, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_TRUECOLOR triangle.
+ */
+#define NAME flat_TRUECOLOR_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage; \
+ unsigned long pixel; \
+ PACK_TRUECOLOR(pixel, v2->color[0], v2->color[1], v2->color[2]);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ XMesaPutPixel(img, x, y, pixel); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_8A8B8G8R triangle.
+ */
+#define NAME flat_8A8B8G8R_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ GLuint p = PACK_8B8G8R( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_8A8R8G8B triangle.
+ */
+#define NAME flat_8A8R8G8B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ GLuint p = PACK_8R8G8B( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_8R8G8B triangle.
+ */
+#define NAME flat_8R8G8B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ GLuint p = PACK_8R8G8B( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_8R8G8B24 triangle.
+ */
+#define NAME flat_8R8G8B24_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR3(xrb, X, Y)
+#define PIXEL_TYPE bgr_t
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = v2->color;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ PIXEL_TYPE *ptr = pRow + i; \
+ ptr->r = color[RCOMP]; \
+ ptr->g = color[GCOMP]; \
+ ptr->b = color[BCOMP]; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_TRUEDITHER triangle.
+ */
+#define NAME flat_TRUEDITHER_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ unsigned long p; \
+ PACK_TRUEDITHER(p, x, y, v2->color[0], \
+ v2->color[1], v2->color[2]); \
+ XMesaPutPixel(img, x, y, p); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_5R6G5B triangle.
+ */
+#define NAME flat_5R6G5B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ GLushort p = PACK_5R6G5B( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_DITHER_5R6G5B triangle.
+ */
+#define NAME flat_DITHER_5R6G5B_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ const GLubyte *color = v2->color;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ PACK_TRUEDITHER(pRow[i], x, y, color[RCOMP], \
+ color[GCOMP], color[BCOMP]); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, 8-bit PF_DITHER triangle.
+ */
+#define NAME flat_DITHER8_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ FLAT_DITHER_SETUP( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ FLAT_DITHER_ROW_SETUP(YFLIP(xrb, y)); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) FLAT_DITHER(x); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, PF_DITHER triangle.
+ */
+#define NAME flat_DITHER_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage; \
+ FLAT_DITHER_SETUP( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ FLAT_DITHER_ROW_SETUP(y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ unsigned long p = FLAT_DITHER(x); \
+ XMesaPutPixel(img, x, y, p); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, 8-bit PF_HPCR triangle.
+ */
+#define NAME flat_HPCR_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ GLubyte r = v2->color[0]; \
+ GLubyte g = v2->color[1]; \
+ GLubyte b = v2->color[2];
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = (PIXEL_TYPE) DITHER_HPCR(x, y, r, g, b); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, depth-buffered, 8-bit PF_LOOKUP triangle.
+ */
+#define NAME flat_LOOKUP8_z_triangle
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ LOOKUP_SETUP; \
+ GLubyte r = v2->color[0]; \
+ GLubyte g = v2->color[1]; \
+ GLubyte b = v2->color[2]; \
+ GLubyte p = LOOKUP(r,g,b);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ pRow[i] = p; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_TRUECOLOR triangle.
+ */
+#define NAME smooth_TRUECOLOR_triangle
+#define INTERP_RGB 1
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ unsigned long p; \
+ PACK_TRUECOLOR(p, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ XMesaPutPixel(img, x, y, p); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_8A8B8G8R triangle.
+ */
+#define NAME smooth_8A8B8G8R_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = PACK_8B8G8R(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_8A8R8G8B triangle.
+ */
+#define NAME smooth_8A8R8G8B_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = PACK_8R8G8B(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_8R8G8B triangle.
+ */
+#define NAME smooth_8R8G8B_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = PACK_8R8G8B(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_8R8G8B triangle.
+ */
+#define NAME smooth_8R8G8B24_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR3(xrb, X, Y)
+#define PIXEL_TYPE bgr_t
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ PIXEL_TYPE *pixel = pRow; \
+ for (i = 0; i < span.end; i++, pixel++) { \
+ pixel->r = FixedToInt(span.red); \
+ pixel->g = FixedToInt(span.green); \
+ pixel->b = FixedToInt(span.blue); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_TRUEDITHER triangle.
+ */
+#define NAME smooth_TRUEDITHER_triangle
+#define INTERP_RGB 1
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ unsigned long p; \
+ PACK_TRUEDITHER(p, x, y, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ XMesaPutPixel(img, x, y, p ); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_5R6G5B triangle.
+ */
+#define NAME smooth_5R6G5B_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = (PIXEL_TYPE) PACK_5R6G5B(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_DITHER_5R6G5B triangle.
+ */
+#define NAME smooth_DITHER_5R6G5B_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ PACK_TRUEDITHER(pRow[i], x, y, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, 8-bit PF_DITHER triangle.
+ */
+#define NAME smooth_DITHER8_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ XDITHER_SETUP(y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ pRow[i] = (PIXEL_TYPE) XDITHER(x, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, PF_DITHER triangle.
+ */
+#define NAME smooth_DITHER_triangle
+#define INTERP_RGB 1
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ XDITHER_SETUP(y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ unsigned long p = XDITHER(x, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue) ); \
+ XMesaPutPixel(img, x, y, p); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, 8-bit PF_LOOKUP triangle.
+ */
+#define NAME smooth_LOOKUP8_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ LOOKUP_SETUP; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = LOOKUP(FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, smooth, NON-depth-buffered, 8-bit PF_HPCR triangle.
+ */
+#define NAME smooth_HPCR_triangle
+#define INTERP_RGB 1
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ pRow[i] = DITHER_HPCR(x, y, FixedToInt(span.red), \
+ FixedToInt(span.green), FixedToInt(span.blue)); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_TRUECOLOR triangle.
+ */
+#define NAME flat_TRUECOLOR_triangle
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage; \
+ unsigned long pixel; \
+ PACK_TRUECOLOR(pixel, v2->color[0], v2->color[1], v2->color[2]);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ XMesaPutPixel(img, x, y, pixel); \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_8A8B8G8R triangle.
+ */
+#define NAME flat_8A8B8G8R_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ unsigned long p = PACK_8B8G8R( v2->color[0], \
+ v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_8A8R8G8B triangle.
+ */
+#define NAME flat_8A8R8G8B_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ unsigned long p = PACK_8R8G8B( v2->color[0], \
+ v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_8R8G8B triangle.
+ */
+#define NAME flat_8R8G8B_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR4(xrb, X, Y)
+#define PIXEL_TYPE GLuint
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ unsigned long p = PACK_8R8G8B( v2->color[0], \
+ v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_8R8G8B24 triangle.
+ */
+#define NAME flat_8R8G8B24_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR3(xrb, X, Y)
+#define PIXEL_TYPE bgr_t
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ const GLubyte *color = v2->color;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ PIXEL_TYPE *pixel = pRow; \
+ for (i = 0; i < span.end; i++, pixel++) { \
+ pixel->r = color[RCOMP]; \
+ pixel->g = color[GCOMP]; \
+ pixel->b = color[BCOMP]; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_TRUEDITHER triangle.
+ */
+#define NAME flat_TRUEDITHER_triangle
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ unsigned long p; \
+ PACK_TRUEDITHER(p, x, y, v2->color[0], \
+ v2->color[1], v2->color[2] ); \
+ XMesaPutPixel(img, x, y, p); \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_5R6G5B triangle.
+ */
+#define NAME flat_5R6G5B_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ unsigned long p = PACK_5R6G5B( v2->color[0], \
+ v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_DITHER_5R6G5B triangle.
+ */
+#define NAME flat_DITHER_5R6G5B_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR2(xrb, X, Y)
+#define PIXEL_TYPE GLushort
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ const GLubyte *color = v2->color;
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ PACK_TRUEDITHER(pRow[i], x, y, color[RCOMP], \
+ color[GCOMP], color[BCOMP]); \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, 8-bit PF_DITHER triangle.
+ */
+#define NAME flat_DITHER8_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ FLAT_DITHER_SETUP( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ FLAT_DITHER_ROW_SETUP(YFLIP(xrb, y)); \
+ for (i = 0; i < span.end; i++, x++) { \
+ pRow[i] = (PIXEL_TYPE) FLAT_DITHER(x); \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, PF_DITHER triangle.
+ */
+#define NAME flat_DITHER_triangle
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ XMesaImage *img = xrb->ximage; \
+ FLAT_DITHER_SETUP( v2->color[0], v2->color[1], v2->color[2] );
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ FLAT_DITHER_ROW_SETUP(y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ unsigned long p = FLAT_DITHER(x); \
+ XMesaPutPixel(img, x, y, p ); \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, 8-bit PF_HPCR triangle.
+ */
+#define NAME flat_HPCR_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ XMesaContext xmesa = XMESA_CONTEXT(ctx); \
+ GET_XRB(xrb); \
+ GLubyte r = v2->color[0]; \
+ GLubyte g = v2->color[1]; \
+ GLubyte b = v2->color[2];
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLint x = span.x, y = YFLIP(xrb, span.y); \
+ for (i = 0; i < span.end; i++, x++) { \
+ pRow[i] = (PIXEL_TYPE) DITHER_HPCR(x, y, r, g, b); \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+/*
+ * XImage, flat, NON-depth-buffered, 8-bit PF_LOOKUP triangle.
+ */
+#define NAME flat_LOOKUP8_triangle
+#define PIXEL_ADDRESS(X,Y) PIXEL_ADDR1(xrb, X, Y)
+#define PIXEL_TYPE GLubyte
+#define BYTES_PER_ROW (xrb->ximage->bytes_per_line)
+#define SETUP_CODE \
+ GET_XRB(xrb); \
+ LOOKUP_SETUP; \
+ GLubyte r = v2->color[0]; \
+ GLubyte g = v2->color[1]; \
+ GLubyte b = v2->color[2]; \
+ GLubyte p = LOOKUP(r,g,b);
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ for (i = 0; i < span.end; i++) { \
+ pRow[i] = (PIXEL_TYPE) p; \
+ }
+#include "swrast/s_tritemp.h"
+
+
+
+#ifdef DEBUG
+extern void _xmesa_print_triangle_func( swrast_tri_func triFunc );
+void _xmesa_print_triangle_func( swrast_tri_func triFunc )
+{
+ _mesa_printf("XMesa tri func = ");
+ if (triFunc ==smooth_TRUECOLOR_z_triangle)
+ _mesa_printf("smooth_TRUECOLOR_z_triangle\n");
+ else if (triFunc ==smooth_8A8B8G8R_z_triangle)
+ _mesa_printf("smooth_8A8B8G8R_z_triangle\n");
+ else if (triFunc ==smooth_8A8R8G8B_z_triangle)
+ _mesa_printf("smooth_8A8R8G8B_z_triangle\n");
+ else if (triFunc ==smooth_8R8G8B_z_triangle)
+ _mesa_printf("smooth_8R8G8B_z_triangle\n");
+ else if (triFunc ==smooth_8R8G8B24_z_triangle)
+ _mesa_printf("smooth_8R8G8B24_z_triangle\n");
+ else if (triFunc ==smooth_TRUEDITHER_z_triangle)
+ _mesa_printf("smooth_TRUEDITHER_z_triangle\n");
+ else if (triFunc ==smooth_5R6G5B_z_triangle)
+ _mesa_printf("smooth_5R6G5B_z_triangle\n");
+ else if (triFunc ==smooth_DITHER_5R6G5B_z_triangle)
+ _mesa_printf("smooth_DITHER_5R6G5B_z_triangle\n");
+ else if (triFunc ==smooth_HPCR_z_triangle)
+ _mesa_printf("smooth_HPCR_z_triangle\n");
+ else if (triFunc ==smooth_DITHER8_z_triangle)
+ _mesa_printf("smooth_DITHER8_z_triangle\n");
+ else if (triFunc ==smooth_LOOKUP8_z_triangle)
+ _mesa_printf("smooth_LOOKUP8_z_triangle\n");
+ else if (triFunc ==flat_TRUECOLOR_z_triangle)
+ _mesa_printf("flat_TRUECOLOR_z_triangle\n");
+ else if (triFunc ==flat_8A8B8G8R_z_triangle)
+ _mesa_printf("flat_8A8B8G8R_z_triangle\n");
+ else if (triFunc ==flat_8A8R8G8B_z_triangle)
+ _mesa_printf("flat_8A8R8G8B_z_triangle\n");
+ else if (triFunc ==flat_8R8G8B_z_triangle)
+ _mesa_printf("flat_8R8G8B_z_triangle\n");
+ else if (triFunc ==flat_8R8G8B24_z_triangle)
+ _mesa_printf("flat_8R8G8B24_z_triangle\n");
+ else if (triFunc ==flat_TRUEDITHER_z_triangle)
+ _mesa_printf("flat_TRUEDITHER_z_triangle\n");
+ else if (triFunc ==flat_5R6G5B_z_triangle)
+ _mesa_printf("flat_5R6G5B_z_triangle\n");
+ else if (triFunc ==flat_DITHER_5R6G5B_z_triangle)
+ _mesa_printf("flat_DITHER_5R6G5B_z_triangle\n");
+ else if (triFunc ==flat_HPCR_z_triangle)
+ _mesa_printf("flat_HPCR_z_triangle\n");
+ else if (triFunc ==flat_DITHER8_z_triangle)
+ _mesa_printf("flat_DITHER8_z_triangle\n");
+ else if (triFunc ==flat_LOOKUP8_z_triangle)
+ _mesa_printf("flat_LOOKUP8_z_triangle\n");
+ else if (triFunc ==smooth_TRUECOLOR_triangle)
+ _mesa_printf("smooth_TRUECOLOR_triangle\n");
+ else if (triFunc ==smooth_8A8B8G8R_triangle)
+ _mesa_printf("smooth_8A8B8G8R_triangle\n");
+ else if (triFunc ==smooth_8A8R8G8B_triangle)
+ _mesa_printf("smooth_8A8R8G8B_triangle\n");
+ else if (triFunc ==smooth_8R8G8B_triangle)
+ _mesa_printf("smooth_8R8G8B_triangle\n");
+ else if (triFunc ==smooth_8R8G8B24_triangle)
+ _mesa_printf("smooth_8R8G8B24_triangle\n");
+ else if (triFunc ==smooth_TRUEDITHER_triangle)
+ _mesa_printf("smooth_TRUEDITHER_triangle\n");
+ else if (triFunc ==smooth_5R6G5B_triangle)
+ _mesa_printf("smooth_5R6G5B_triangle\n");
+ else if (triFunc ==smooth_DITHER_5R6G5B_triangle)
+ _mesa_printf("smooth_DITHER_5R6G5B_triangle\n");
+ else if (triFunc ==smooth_HPCR_triangle)
+ _mesa_printf("smooth_HPCR_triangle\n");
+ else if (triFunc ==smooth_DITHER8_triangle)
+ _mesa_printf("smooth_DITHER8_triangle\n");
+ else if (triFunc ==smooth_LOOKUP8_triangle)
+ _mesa_printf("smooth_LOOKUP8_triangle\n");
+ else if (triFunc ==flat_TRUECOLOR_triangle)
+ _mesa_printf("flat_TRUECOLOR_triangle\n");
+ else if (triFunc ==flat_TRUEDITHER_triangle)
+ _mesa_printf("flat_TRUEDITHER_triangle\n");
+ else if (triFunc ==flat_8A8B8G8R_triangle)
+ _mesa_printf("flat_8A8B8G8R_triangle\n");
+ else if (triFunc ==flat_8A8R8G8B_triangle)
+ _mesa_printf("flat_8A8R8G8B_triangle\n");
+ else if (triFunc ==flat_8R8G8B_triangle)
+ _mesa_printf("flat_8R8G8B_triangle\n");
+ else if (triFunc ==flat_8R8G8B24_triangle)
+ _mesa_printf("flat_8R8G8B24_triangle\n");
+ else if (triFunc ==flat_5R6G5B_triangle)
+ _mesa_printf("flat_5R6G5B_triangle\n");
+ else if (triFunc ==flat_DITHER_5R6G5B_triangle)
+ _mesa_printf("flat_DITHER_5R6G5B_triangle\n");
+ else if (triFunc ==flat_HPCR_triangle)
+ _mesa_printf("flat_HPCR_triangle\n");
+ else if (triFunc ==flat_DITHER8_triangle)
+ _mesa_printf("flat_DITHER8_triangle\n");
+ else if (triFunc ==flat_LOOKUP8_triangle)
+ _mesa_printf("flat_LOOKUP8_triangle\n");
+ else
+ _mesa_printf("???\n");
+}
+#endif
+
+
+#ifdef DEBUG
+
+/* record the current triangle function name */
+static const char *triFuncName = NULL;
+
+#define USE(triFunc) \
+do { \
+ triFuncName = #triFunc; \
+ return triFunc; \
+} while (0)
+
+#else
+
+#define USE(triFunc) return triFunc
+
+#endif
+
+
+static swrast_tri_func get_triangle_func( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
+ GET_XRB(xrb);
+
+#ifdef DEBUG
+ triFuncName = NULL;
+#endif
+
+ if ((ctx->DrawBuffer->_ColorDrawBufferMask[0]
+ & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) == 0)
+ return (swrast_tri_func) NULL;
+ if (ctx->RenderMode != GL_RENDER) return (swrast_tri_func) NULL;
+ if (ctx->Polygon.SmoothFlag) return (swrast_tri_func) NULL;
+ if (ctx->Texture._EnabledUnits) return (swrast_tri_func) NULL;
+ if (swrast->_RasterMask & MULTI_DRAW_BIT) return (swrast_tri_func) NULL;
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
+ return (swrast_tri_func) NULL;
+
+ if (xrb->ximage) {
+ if ( ctx->Light.ShadeModel==GL_SMOOTH
+ && swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
+ && ctx->Polygon.StippleFlag==GL_FALSE) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ USE(smooth_TRUECOLOR_z_triangle);
+ case PF_8A8B8G8R:
+ USE(smooth_8A8B8G8R_z_triangle);
+ case PF_8A8R8G8B:
+ USE(smooth_8A8R8G8B_z_triangle);
+ case PF_8R8G8B:
+ USE(smooth_8R8G8B_z_triangle);
+ case PF_8R8G8B24:
+ USE(smooth_8R8G8B24_z_triangle);
+ case PF_Dither_True:
+ USE(smooth_TRUEDITHER_z_triangle);
+ case PF_5R6G5B:
+ USE(smooth_5R6G5B_z_triangle);
+ case PF_Dither_5R6G5B:
+ USE(smooth_DITHER_5R6G5B_z_triangle);
+ case PF_HPCR:
+ USE(smooth_HPCR_z_triangle);
+ case PF_Dither:
+ if (depth == 8)
+ USE(smooth_DITHER8_z_triangle);
+ else
+ USE(smooth_DITHER_z_triangle);
+ case PF_Lookup:
+ if (depth == 8)
+ USE(smooth_LOOKUP8_z_triangle);
+ else
+ return (swrast_tri_func) NULL;
+ default:
+ return (swrast_tri_func) NULL;
+ }
+ }
+ if ( ctx->Light.ShadeModel==GL_FLAT
+ && swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
+ && ctx->Polygon.StippleFlag==GL_FALSE) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ USE(flat_TRUECOLOR_z_triangle);
+ case PF_8A8B8G8R:
+ USE(flat_8A8B8G8R_z_triangle);
+ case PF_8A8R8G8B:
+ USE(flat_8A8R8G8B_z_triangle);
+ case PF_8R8G8B:
+ USE(flat_8R8G8B_z_triangle);
+ case PF_8R8G8B24:
+ USE(flat_8R8G8B24_z_triangle);
+ case PF_Dither_True:
+ USE(flat_TRUEDITHER_z_triangle);
+ case PF_5R6G5B:
+ USE(flat_5R6G5B_z_triangle);
+ case PF_Dither_5R6G5B:
+ USE(flat_DITHER_5R6G5B_z_triangle);
+ case PF_HPCR:
+ USE(flat_HPCR_z_triangle);
+ case PF_Dither:
+ if (depth == 8)
+ USE(flat_DITHER8_z_triangle);
+ else
+ USE(flat_DITHER_z_triangle);
+ case PF_Lookup:
+ if (depth == 8)
+ USE(flat_LOOKUP8_z_triangle);
+ else
+ return (swrast_tri_func) NULL;
+ default:
+ return (swrast_tri_func) NULL;
+ }
+ }
+ if ( swrast->_RasterMask==0 /* no depth test */
+ && ctx->Light.ShadeModel==GL_SMOOTH
+ && ctx->Polygon.StippleFlag==GL_FALSE) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ USE(smooth_TRUECOLOR_triangle);
+ case PF_8A8B8G8R:
+ USE(smooth_8A8B8G8R_triangle);
+ case PF_8A8R8G8B:
+ USE(smooth_8A8R8G8B_triangle);
+ case PF_8R8G8B:
+ USE(smooth_8R8G8B_triangle);
+ case PF_8R8G8B24:
+ USE(smooth_8R8G8B24_triangle);
+ case PF_Dither_True:
+ USE(smooth_TRUEDITHER_triangle);
+ case PF_5R6G5B:
+ USE(smooth_5R6G5B_triangle);
+ case PF_Dither_5R6G5B:
+ USE(smooth_DITHER_5R6G5B_triangle);
+ case PF_HPCR:
+ USE(smooth_HPCR_triangle);
+ case PF_Dither:
+ if (depth == 8)
+ USE(smooth_DITHER8_triangle);
+ else
+ USE(smooth_DITHER_triangle);
+ case PF_Lookup:
+ if (depth == 8)
+ USE(smooth_LOOKUP8_triangle);
+ else
+ return (swrast_tri_func) NULL;
+ default:
+ return (swrast_tri_func) NULL;
+ }
+ }
+
+ if ( swrast->_RasterMask==0 /* no depth test */
+ && ctx->Light.ShadeModel==GL_FLAT
+ && ctx->Polygon.StippleFlag==GL_FALSE) {
+ switch (xmesa->pixelformat) {
+ case PF_Truecolor:
+ USE(flat_TRUECOLOR_triangle);
+ case PF_Dither_True:
+ USE(flat_TRUEDITHER_triangle);
+ case PF_8A8B8G8R:
+ USE(flat_8A8B8G8R_triangle);
+ case PF_8A8R8G8B:
+ USE(flat_8A8R8G8B_triangle);
+ case PF_8R8G8B:
+ USE(flat_8R8G8B_triangle);
+ case PF_8R8G8B24:
+ USE(flat_8R8G8B24_triangle);
+ case PF_5R6G5B:
+ USE(flat_5R6G5B_triangle);
+ case PF_Dither_5R6G5B:
+ USE(flat_DITHER_5R6G5B_triangle);
+ case PF_HPCR:
+ USE(flat_HPCR_triangle);
+ case PF_Dither:
+ if (depth == 8)
+ USE(flat_DITHER8_triangle);
+ else
+ USE(flat_DITHER_triangle);
+ case PF_Lookup:
+ if (depth == 8)
+ USE(flat_LOOKUP8_triangle);
+ else
+ return (swrast_tri_func) NULL;
+ default:
+ return (swrast_tri_func) NULL;
+ }
+ }
+
+ return (swrast_tri_func) NULL;
+ }
+ else {
+ /* draw to pixmap */
+ return (swrast_tri_func) NULL;
+ }
+}
+
+
+/* Override for the swrast tri-selection function. Try to use one
+ * of our internal tri functions, otherwise fall back to the
+ * standard swrast functions.
+ */
+void xmesa_choose_triangle( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (!(swrast->Triangle = get_triangle_func( ctx )))
+ _swrast_choose_triangle( ctx );
+}
+
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xmesaP.h b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xmesaP.h
new file mode 100644
index 000000000..c5037e619
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xmesaP.h
@@ -0,0 +1,554 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef XMESAP_H
+#define XMESAP_H
+
+
+#ifdef XFree86Server
+# include "xf86glx_util.h"
+#elif defined(USE_XSHM)
+# include <X11/extensions/XShm.h>
+#endif
+#include "GL/xmesa.h"
+#include "mtypes.h"
+#if defined(FX)
+#include "GL/fxmesa.h"
+#include "../glide/fxdrv.h"
+#endif
+
+
+extern _glthread_Mutex _xmesa_lock;
+
+
+/* for PF_8R8G8B24 pixel format */
+typedef struct {
+ GLubyte b;
+ GLubyte g;
+ GLubyte r;
+} bgr_t;
+
+
+struct xmesa_renderbuffer;
+
+
+/* Function pointer for clearing color buffers */
+typedef void (*ClearFunc)( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y,
+ GLint width, GLint height );
+
+
+
+
+/** Framebuffer pixel formats */
+enum pixel_format {
+ PF_Index, /**< Color Index mode */
+ PF_Truecolor, /**< TrueColor or DirectColor, any depth */
+ PF_Dither_True, /**< TrueColor with dithering */
+ PF_8A8B8G8R, /**< 32-bit TrueColor: 8-A, 8-B, 8-G, 8-R */
+ PF_8R8G8B, /**< 32-bit TrueColor: 8-R, 8-G, 8-B bits */
+ PF_5R6G5B, /**< 16-bit TrueColor: 5-R, 6-G, 5-B bits */
+ PF_Dither, /**< Color-mapped RGB with dither */
+ PF_Lookup, /**< Color-mapped RGB without dither */
+ PF_HPCR, /**< HP Color Recovery (ad@lms.be 30/08/95) */
+ PF_1Bit, /**< monochrome dithering of RGB */
+ PF_Grayscale, /**< Grayscale or StaticGray */
+ PF_8R8G8B24, /**< 24-bit TrueColor: 8-R, 8-G, 8-B bits */
+ PF_Dither_5R6G5B, /**< 16-bit dithered TrueColor: 5-R, 6-G, 5-B */
+ PF_8A8R8G8B /**< 32-bit TrueColor: 8-A, 8-R, 8-G, 8-B */
+};
+
+
+/*
+ * "Derived" from GLvisual. Basically corresponds to an XVisualInfo.
+ */
+struct xmesa_visual {
+ GLvisual mesa_visual; /* Device independent visual parameters */
+ XMesaDisplay *display; /* The X11 display */
+#ifdef XFree86Server
+ GLint ColormapEntries;
+ GLint nplanes;
+#else
+ XMesaVisualInfo visinfo; /* X's visual info (pointer to private copy) */
+ XVisualInfo *vishandle; /* Only used in fakeglx.c */
+#endif
+ GLint BitsPerPixel; /* True bits per pixel for XImages */
+
+ GLboolean ximage_flag; /* Use XImage for back buffer (not pixmap)? */
+
+ enum pixel_format dithered_pf; /* Pixel format when dithering */
+ enum pixel_format undithered_pf;/* Pixel format when not dithering */
+
+ GLfloat RedGamma; /* Gamma values, 1.0 is default */
+ GLfloat GreenGamma;
+ GLfloat BlueGamma;
+
+ /* For PF_TRUECOLOR */
+ GLint rshift, gshift, bshift;/* Pixel color component shifts */
+ GLubyte Kernel[16]; /* Dither kernel */
+ unsigned long RtoPixel[512]; /* RGB to pixel conversion */
+ unsigned long GtoPixel[512];
+ unsigned long BtoPixel[512];
+ GLubyte PixelToR[256]; /* Pixel to RGB conversion */
+ GLubyte PixelToG[256];
+ GLubyte PixelToB[256];
+
+ /* For PF_HPCR */
+ short hpcr_rgbTbl[3][256];
+ GLboolean hpcr_clear_flag;
+ GLubyte hpcr_clear_ximage_pattern[2][16];
+ XMesaImage *hpcr_clear_ximage;
+ XMesaPixmap hpcr_clear_pixmap;
+
+ /* For PF_1BIT */
+ int bitFlip;
+};
+
+
+/*
+ * "Derived" from __GLcontextRec. Basically corresponds to a GLXContext.
+ */
+struct xmesa_context {
+ GLcontext mesa; /* the core library context (containment) */
+ XMesaVisual xm_visual; /* Describes the buffers */
+ XMesaBuffer xm_buffer; /* current span/point/line/triangle buffer */
+
+ XMesaDisplay *display; /* == xm_visual->display */
+ GLboolean swapbytes; /* Host byte order != display byte order? */
+ GLboolean direct; /* Direct rendering context? */
+
+ enum pixel_format pixelformat;
+
+ GLubyte clearcolor[4]; /* current clearing color */
+ unsigned long clearpixel; /* current clearing pixel value */
+};
+
+
+
+typedef enum {
+ WINDOW, /* An X window */
+ GLXWINDOW, /* GLX window */
+ PIXMAP, /* GLX pixmap */
+ PBUFFER /* GLX Pbuffer */
+} BufferType;
+
+
+/**
+ * An xmesa_renderbuffer represents the back or front color buffer.
+ * For the front color buffer:
+ * <drawable> is the X window
+ * For the back color buffer:
+ * Either <ximage> or <pixmap> will be used, never both.
+ * In any case, <drawable> always equals <pixmap>.
+ * For stand-alone Mesa, we could merge <drawable> and <pixmap> into one
+ * field. We don't do that for the server-side GLcore module because
+ * pixmaps and drawables are different and we'd need a bunch of casts.
+ */
+struct xmesa_renderbuffer
+{
+ struct gl_renderbuffer Base; /* Base class */
+
+ XMesaDrawable drawable; /* Usually the X window ID */
+ XMesaPixmap pixmap; /* Back color buffer */
+ XMesaImage *ximage; /* The back buffer, if not using a Pixmap */
+
+ GLubyte *origin1; /* used for PIXEL_ADDR1 macro */
+ GLint width1;
+ GLushort *origin2; /* used for PIXEL_ADDR2 macro */
+ GLint width2;
+ GLubyte *origin3; /* used for PIXEL_ADDR3 macro */
+ GLint width3;
+ GLuint *origin4; /* used for PIXEL_ADDR4 macro */
+ GLint width4;
+
+ GLint bottom; /* used for FLIP macro */
+
+ ClearFunc clearFunc;
+};
+
+
+/*
+ * "Derived" from GLframebuffer. Basically corresponds to a GLXDrawable.
+ */
+struct xmesa_buffer {
+ GLframebuffer mesa_buffer; /* depth, stencil, accum, etc buffers */
+ /* This MUST BE FIRST! */
+ GLboolean wasCurrent; /* was ever the current buffer? */
+ XMesaVisual xm_visual; /* the X/Mesa visual */
+
+ XMesaDisplay *display;
+ BufferType type; /* window, pixmap, pbuffer or glxwindow */
+
+ struct xmesa_renderbuffer *frontxrb; /* front color renderbuffer */
+ struct xmesa_renderbuffer *backxrb; /* back color renderbuffer */
+
+ XMesaColormap cmap; /* the X colormap */
+
+ unsigned long selectedEvents;/* for pbuffers only */
+
+ GLint db_state; /* 0 = single buffered */
+ /* BACK_PIXMAP = use Pixmap for back buffer */
+ /* BACK_XIMAGE = use XImage for back buffer */
+
+#ifndef XFree86Server
+ GLuint shm; /* X Shared Memory extension status: */
+ /* 0 = not available */
+ /* 1 = XImage support available */
+ /* 2 = Pixmap support available too */
+#ifdef USE_XSHM
+ XShmSegmentInfo shminfo;
+#endif
+#endif
+
+ XMesaImage *rowimage; /* Used for optimized span writing */
+ XMesaPixmap stipple_pixmap; /* For polygon stippling */
+ XMesaGC stipple_gc; /* For polygon stippling */
+
+ XMesaGC gc; /* scratch GC for span, line, tri drawing */
+ XMesaGC cleargc; /* GC for clearing the color buffer */
+ XMesaGC swapgc; /* GC for swapping the color buffers */
+
+ /* The following are here instead of in the XMesaVisual
+ * because they depend on the window's colormap.
+ */
+
+ /* For PF_DITHER, PF_LOOKUP, PF_GRAYSCALE */
+ unsigned long color_table[576]; /* RGB -> pixel value */
+
+ /* For PF_DITHER, PF_LOOKUP, PF_GRAYSCALE */
+ GLubyte pixel_to_r[65536]; /* pixel value -> red */
+ GLubyte pixel_to_g[65536]; /* pixel value -> green */
+ GLubyte pixel_to_b[65536]; /* pixel value -> blue */
+
+ /* Used to do XAllocColor/XFreeColors accounting: */
+ int num_alloced;
+#if defined(XFree86Server)
+ Pixel alloced_colors[256];
+#else
+ unsigned long alloced_colors[256];
+#endif
+
+#if defined( FX )
+ /* For 3Dfx Glide only */
+ GLboolean FXisHackUsable; /* Can we render into window? */
+ GLboolean FXwindowHack; /* Are we rendering into a window? */
+ fxMesaContext FXctx;
+#endif
+
+ struct xmesa_buffer *Next; /* Linked list pointer: */
+};
+
+
+/* Values for xmesa->db_state: */
+#define FRONT_PIXMAP 1
+#define BACK_PIXMAP 2
+#define BACK_XIMAGE 4
+
+
+/*
+ * If pixelformat==PF_TRUECOLOR:
+ */
+#define PACK_TRUECOLOR( PIXEL, R, G, B ) \
+ PIXEL = xmesa->xm_visual->RtoPixel[R] \
+ | xmesa->xm_visual->GtoPixel[G] \
+ | xmesa->xm_visual->BtoPixel[B]; \
+
+
+/*
+ * If pixelformat==PF_TRUEDITHER:
+ */
+#define PACK_TRUEDITHER( PIXEL, X, Y, R, G, B ) \
+{ \
+ int d = xmesa->xm_visual->Kernel[((X)&3) | (((Y)&3)<<2)]; \
+ PIXEL = xmesa->xm_visual->RtoPixel[(R)+d] \
+ | xmesa->xm_visual->GtoPixel[(G)+d] \
+ | xmesa->xm_visual->BtoPixel[(B)+d]; \
+}
+
+
+
+/*
+ * If pixelformat==PF_8A8B8G8R:
+ */
+#define PACK_8A8B8G8R( R, G, B, A ) \
+ ( ((A) << 24) | ((B) << 16) | ((G) << 8) | (R) )
+
+
+/*
+ * Like PACK_8A8B8G8R() but don't use alpha. This is usually an acceptable
+ * shortcut.
+ */
+#define PACK_8B8G8R( R, G, B ) ( ((B) << 16) | ((G) << 8) | (R) )
+
+
+
+/*
+ * If pixelformat==PF_8R8G8B:
+ */
+#define PACK_8R8G8B( R, G, B) ( ((R) << 16) | ((G) << 8) | (B) )
+
+
+/*
+ * If pixelformat==PF_5R6G5B:
+ */
+#define PACK_5R6G5B( R, G, B) ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
+
+
+/*
+ * If pixelformat==PF_8A8R8G8B:
+ */
+#define PACK_8A8R8G8B( R, G, B, A ) \
+ ( ((A) << 24) | ((R) << 16) | ((G) << 8) | (B) )
+
+
+
+/*
+ * If pixelformat==PF_DITHER:
+ *
+ * Improved 8-bit RGB dithering code contributed by Bob Mercier
+ * (mercier@hollywood.cinenet.net). Thanks Bob!
+ */
+#ifdef DITHER666
+# define DITH_R 6
+# define DITH_G 6
+# define DITH_B 6
+# define DITH_MIX(r,g,b) (((r) * DITH_G + (g)) * DITH_B + (b))
+#else
+# define DITH_R 5
+# define DITH_G 9
+# define DITH_B 5
+# define DITH_MIX(r,g,b) (((g) << 6) | ((b) << 3) | (r))
+#endif
+#define DITH_DX 4
+#define DITH_DY 4
+#define DITH_N (DITH_DX * DITH_DY)
+
+#define _dither(C, c, d) (((unsigned)((DITH_N * (C - 1) + 1) * c + d)) >> 12)
+
+#define MAXC 256
+extern const int xmesa_kernel8[DITH_DY * DITH_DX];
+
+/* Dither for random X,Y */
+#define DITHER_SETUP \
+ int __d; \
+ unsigned long *ctable = XMESA_BUFFER(ctx->DrawBuffer)->color_table;
+
+#define DITHER( X, Y, R, G, B ) \
+ (__d = xmesa_kernel8[(((Y)&3)<<2) | ((X)&3)], \
+ ctable[DITH_MIX(_dither(DITH_R, (R), __d), \
+ _dither(DITH_G, (G), __d), \
+ _dither(DITH_B, (B), __d))])
+
+/* Dither for random X, fixed Y */
+#define XDITHER_SETUP(Y) \
+ int __d; \
+ unsigned long *ctable = XMESA_BUFFER(ctx->DrawBuffer)->color_table; \
+ const int *kernel = &xmesa_kernel8[ ((Y)&3) << 2 ];
+
+#define XDITHER( X, R, G, B ) \
+ (__d = kernel[(X)&3], \
+ ctable[DITH_MIX(_dither(DITH_R, (R), __d), \
+ _dither(DITH_G, (G), __d), \
+ _dither(DITH_B, (B), __d))])
+
+
+
+/*
+ * Dithering for flat-shaded triangles. Precompute all 16 possible
+ * pixel values given the triangle's RGB color. Contributed by Martin Shenk.
+ */
+#define FLAT_DITHER_SETUP( R, G, B ) \
+ GLushort ditherValues[16]; \
+ { \
+ unsigned long *ctable = XMESA_BUFFER(ctx->DrawBuffer)->color_table; \
+ int msdr = (DITH_N*((DITH_R)-1)+1) * (R); \
+ int msdg = (DITH_N*((DITH_G)-1)+1) * (G); \
+ int msdb = (DITH_N*((DITH_B)-1)+1) * (B); \
+ int i; \
+ for (i=0;i<16;i++) { \
+ int k = xmesa_kernel8[i]; \
+ int j = DITH_MIX( (msdr+k)>>12, (msdg+k)>>12, (msdb+k)>>12 );\
+ ditherValues[i] = (GLushort) ctable[j]; \
+ } \
+ }
+
+#define FLAT_DITHER_ROW_SETUP(Y) \
+ GLushort *ditherRow = ditherValues + ( ((Y)&3) << 2);
+
+#define FLAT_DITHER(X) ditherRow[(X)&3]
+
+
+
+/*
+ * If pixelformat==PF_LOOKUP:
+ */
+#define _dither_lookup(C, c) (((unsigned)((DITH_N * (C - 1) + 1) * c)) >> 12)
+
+#define LOOKUP_SETUP \
+ unsigned long *ctable = XMESA_BUFFER(ctx->DrawBuffer)->color_table
+
+#define LOOKUP( R, G, B ) \
+ ctable[DITH_MIX(_dither_lookup(DITH_R, (R)), \
+ _dither_lookup(DITH_G, (G)), \
+ _dither_lookup(DITH_B, (B)))]
+
+
+
+/*
+ * If pixelformat==PF_HPCR:
+ *
+ * HP Color Recovery dithering (ad@lms.be 30/08/95)
+ * HP has on it's 8-bit 700-series computers, a feature called
+ * 'Color Recovery'. This allows near 24-bit output (so they say).
+ * It is enabled by selecting the 8-bit TrueColor visual AND
+ * corresponding colormap (see tkInitWindow) AND doing some special
+ * dither.
+ */
+extern const short xmesa_HPCR_DRGB[3][2][16];
+
+#define DITHER_HPCR( X, Y, R, G, B ) \
+ ( ((xmesa->xm_visual->hpcr_rgbTbl[0][R] + xmesa_HPCR_DRGB[0][(Y)&1][(X)&15]) & 0xE0) \
+ |(((xmesa->xm_visual->hpcr_rgbTbl[1][G] + xmesa_HPCR_DRGB[1][(Y)&1][(X)&15]) & 0xE0)>>3) \
+ | ((xmesa->xm_visual->hpcr_rgbTbl[2][B] + xmesa_HPCR_DRGB[2][(Y)&1][(X)&15])>>6) \
+ )
+
+
+
+/*
+ * If pixelformat==PF_1BIT:
+ */
+extern const int xmesa_kernel1[16];
+
+#define SETUP_1BIT int bitFlip = xmesa->xm_visual->bitFlip
+#define DITHER_1BIT( X, Y, R, G, B ) \
+ (( ((int)(R)+(int)(G)+(int)(B)) > xmesa_kernel1[(((Y)&3) << 2) | ((X)&3)] ) ^ bitFlip)
+
+
+
+/*
+ * If pixelformat==PF_GRAYSCALE:
+ */
+#define GRAY_RGB( R, G, B ) XMESA_BUFFER(ctx->DrawBuffer)->color_table[((R) + (G) + (B))/3]
+
+
+
+/*
+ * Converts a GL window Y coord to an X window Y coord:
+ */
+#define YFLIP(XRB, Y) ((XRB)->bottom - (Y))
+
+
+/*
+ * Return the address of a 1, 2 or 4-byte pixel in the buffer's XImage:
+ * X==0 is left, Y==0 is bottom.
+ */
+#define PIXEL_ADDR1(XRB, X, Y) \
+ ( (XRB)->origin1 - (Y) * (XRB)->width1 + (X) )
+
+#define PIXEL_ADDR2(XRB, X, Y) \
+ ( (XRB)->origin2 - (Y) * (XRB)->width2 + (X) )
+
+#define PIXEL_ADDR3(XRB, X, Y) \
+ ( (bgr_t *) ( (XRB)->origin3 - (Y) * (XRB)->width3 + 3 * (X) ))
+
+#define PIXEL_ADDR4(XRB, X, Y) \
+ ( (XRB)->origin4 - (Y) * (XRB)->width4 + (X) )
+
+
+
+
+/*
+ * Return pointer to XMesaContext corresponding to a Mesa GLcontext.
+ * Since we're using structure containment, it's just a cast!.
+ */
+#define XMESA_CONTEXT(MESACTX) ((XMesaContext) (MESACTX))
+
+/*
+ * Return pointer to XMesaBuffer corresponding to a Mesa GLframebuffer.
+ * Since we're using structure containment, it's just a cast!.
+ */
+#define XMESA_BUFFER(MESABUFF) ((XMesaBuffer) (MESABUFF))
+
+
+
+/*
+ * External functions:
+ */
+
+extern struct xmesa_renderbuffer *
+xmesa_new_renderbuffer(GLcontext *ctx, GLuint name, GLboolean rgbMode);
+
+extern unsigned long
+xmesa_color_to_pixel( GLcontext *ctx,
+ GLubyte r, GLubyte g, GLubyte b, GLubyte a,
+ GLuint pixelFormat );
+
+extern void
+xmesa_alloc_back_buffer(XMesaBuffer b, GLuint width, GLuint height);
+
+extern void xmesa_resize_buffers(GLcontext *ctx, GLframebuffer *buffer,
+ GLuint width, GLuint height);
+
+extern void xmesa_init_driver_functions( XMesaVisual xmvisual,
+ struct dd_function_table *driver );
+
+extern void xmesa_update_state( GLcontext *ctx, GLuint new_state );
+
+extern void
+xmesa_set_renderbuffer_funcs(struct xmesa_renderbuffer *xrb,
+ enum pixel_format pixelformat, GLint depth);
+
+
+/* Plugged into the software rasterizer. Try to use internal
+ * swrast-style point, line and triangle functions.
+ */
+extern void xmesa_choose_point( GLcontext *ctx );
+extern void xmesa_choose_line( GLcontext *ctx );
+extern void xmesa_choose_triangle( GLcontext *ctx );
+
+
+extern void xmesa_register_swrast_functions( GLcontext *ctx );
+
+
+
+/* XXX this is a hack to implement shared display lists with 3Dfx */
+extern XMesaBuffer XMesaCreateWindowBuffer2( XMesaVisual v,
+ XMesaWindow w,
+ XMesaContext c );
+
+/*
+ * These are the extra routines required for integration with XFree86.
+ * None of these routines should be user visible. -KEM
+ */
+extern void XMesaSetVisualDisplay( XMesaDisplay *dpy, XMesaVisual v );
+extern GLboolean XMesaForceCurrent(XMesaContext c);
+extern GLboolean XMesaLoseCurrent(XMesaContext c);
+extern void XMesaReset( void );
+
+
+#define SWTC 0 /* SW texture compression */
+
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 20:24:28 +0000