svn merge -r588:HEAD ^/branches/released .

1 files changed, 550 insertions, 550 deletions

diff --git a/xorg-server/hw/xquartz/GL/glcontextmodes.c b/xorg-server/hw/xquartz/GL/glcontextmodes.c
index 326c8b235..52a9ca440 100644
--- a/xorg-server/hw/xquartz/GL/glcontextmodes.c
+++ b/xorg-server/hw/xquartz/GL/glcontextmodes.c
@@ -1,550 +1,550 @@
-/*
- * (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>
- */
-
-#if defined(IN_MINI_GLX)
-#include <GL/gl.h>
-#else
-#if defined(HAVE_DIX_CONFIG_H)
-# include <dix-config.h>
-#endif
-#include <X11/X.h>
-#include <GL/glx.h>
-#include "GL/glxint.h"
-#endif
-
-/* Memory macros */
-#if defined(IN_MINI_GLX)
-# include <stdlib.h>
-# include <string.h>
-# define _mesa_malloc(b) malloc(b)
-# define _mesa_free(m) free(m)
-# define _mesa_memset  memset
-#else
-# ifdef XFree86Server
-# include <os.h>
-# include <string.h>
-#  define _mesa_malloc(b) xalloc(b)
-#  define _mesa_free(m)   xfree(m)
-#  define _mesa_memset   memset
-# else
-#  include <X11/Xlibint.h>
-#  define _mesa_memset memset
-#  define _mesa_malloc(b) Xmalloc(b)
-#  define _mesa_free(m) Xfree(m)
-# endif /* XFree86Server */
-#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 derived 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) _mesa_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->samples = config->multiSampleSize;
-    mode->sampleBuffers = config->nMultiSampleBuffers;
-    /* mode->visualSelectGroup = config->visualSelectGroup; ? */
-
-    mode->swapMethod = GLX_SWAP_UNDEFINED_OML;
-
-    mode->bindToTextureRgb = (mode->rgbMode) ? GL_TRUE : GL_FALSE;
-    mode->bindToTextureRgba = (mode->rgbMode && mode->alphaBits) ?
-	GL_TRUE : GL_FALSE;
-    mode->bindToMipmapTexture = mode->rgbMode ? GL_TRUE : GL_FALSE;
-    mode->bindToTextureTargets = mode->rgbMode ?
-	GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT |
-	GLX_TEXTURE_RECTANGLE_BIT_EXT : 0;
-    mode->yInverted = GL_FALSE;
-}
-
-
-/**
- * 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;
-      case GLX_BIND_TO_TEXTURE_RGB_EXT:
-	*value_return = mode->bindToTextureRgb;
-	return 0;
-      case GLX_BIND_TO_TEXTURE_RGBA_EXT:
-	*value_return = mode->bindToTextureRgba;
-	return 0;
-      case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
-	*value_return = mode->bindToMipmapTexture == GL_TRUE ? GL_TRUE :
-	    GL_FALSE;
-	return 0;
-      case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
-	*value_return = mode->bindToTextureTargets;
-	return 0;
-      case GLX_Y_INVERTED_EXT:
-	*value_return = mode->yInverted;
-	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 *) _mesa_malloc( size );
-      if ( *next == NULL ) {
-	 _gl_context_modes_destroy( base );
-	 base = NULL;
-	 break;
-      }
-      
-      (void) _mesa_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)->bindToTextureRgb = GLX_DONT_CARE;
-      (*next)->bindToTextureRgba = GLX_DONT_CARE;
-      (*next)->bindToMipmapTexture = GLX_DONT_CARE;
-      (*next)->bindToTextureTargets = GLX_DONT_CARE;
-      (*next)->yInverted = GLX_DONT_CARE;
-
-      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;
-
-      _mesa_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)
-{
-    __GLcontextModes *m;
-
-    for (m = modes; m != NULL; m = m->next)
-	if (m->visualID == vid)
-	    return m;
-
-    return NULL;
-}
-
-__GLcontextModes *
-_gl_context_modes_find_fbconfig(__GLcontextModes *modes, int fbid)
-{
-    __GLcontextModes *m;
-
-    for (m = modes; m != NULL; m = m->next)
-	if (m->fbconfigID == fbid)
-	    return m;
-
-    return NULL;
-}
-
-/**
- * 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) &&
-	    (a->bindToTextureRgb == b->bindToTextureRgb) &&
-	    (a->bindToTextureRgba == b->bindToTextureRgba) &&
-	    (a->bindToMipmapTexture == b->bindToMipmapTexture) &&
-	    (a->bindToTextureTargets == b->bindToTextureTargets) &&
-	    (a->yInverted == b->yInverted) );
-}
+/*

+ * (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>

+ */

+

+#if defined(IN_MINI_GLX)

+#include <GL/gl.h>

+#else

+#if defined(HAVE_DIX_CONFIG_H)

+# include <dix-config.h>

+#endif

+#include <X11/X.h>

+#include <GL/glx.h>

+#include "GL/glxint.h"

+#endif

+

+/* Memory macros */

+#if defined(IN_MINI_GLX)

+# include <stdlib.h>

+# include <string.h>

+# define _mesa_malloc(b) malloc(b)

+# define _mesa_free(m) free(m)

+# define _mesa_memset  memset

+#else

+# ifdef XFree86Server

+# include <os.h>

+# include <string.h>

+#  define _mesa_malloc(b) malloc(b)

+#  define _mesa_free(m)   free(m)

+#  define _mesa_memset   memset

+# else

+#  include <X11/Xlibint.h>

+#  define _mesa_memset memset

+#  define _mesa_malloc(b) Xmalloc(b)

+#  define _mesa_free(m) free(m)

+# endif /* XFree86Server */

+#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 derived 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) _mesa_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->samples = config->multiSampleSize;

+    mode->sampleBuffers = config->nMultiSampleBuffers;

+    /* mode->visualSelectGroup = config->visualSelectGroup; ? */

+

+    mode->swapMethod = GLX_SWAP_UNDEFINED_OML;

+

+    mode->bindToTextureRgb = (mode->rgbMode) ? GL_TRUE : GL_FALSE;

+    mode->bindToTextureRgba = (mode->rgbMode && mode->alphaBits) ?

+	GL_TRUE : GL_FALSE;

+    mode->bindToMipmapTexture = mode->rgbMode ? GL_TRUE : GL_FALSE;

+    mode->bindToTextureTargets = mode->rgbMode ?

+	GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT |

+	GLX_TEXTURE_RECTANGLE_BIT_EXT : 0;

+    mode->yInverted = GL_FALSE;

+}

+

+

+/**

+ * 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;

+      case GLX_BIND_TO_TEXTURE_RGB_EXT:

+	*value_return = mode->bindToTextureRgb;

+	return 0;

+      case GLX_BIND_TO_TEXTURE_RGBA_EXT:

+	*value_return = mode->bindToTextureRgba;

+	return 0;

+      case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:

+	*value_return = mode->bindToMipmapTexture == GL_TRUE ? GL_TRUE :

+	    GL_FALSE;

+	return 0;

+      case GLX_BIND_TO_TEXTURE_TARGETS_EXT:

+	*value_return = mode->bindToTextureTargets;

+	return 0;

+      case GLX_Y_INVERTED_EXT:

+	*value_return = mode->yInverted;

+	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 *) _mesa_malloc( size );

+      if ( *next == NULL ) {

+	 _gl_context_modes_destroy( base );

+	 base = NULL;

+	 break;

+      }

+      

+      (void) _mesa_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)->bindToTextureRgb = GLX_DONT_CARE;

+      (*next)->bindToTextureRgba = GLX_DONT_CARE;

+      (*next)->bindToMipmapTexture = GLX_DONT_CARE;

+      (*next)->bindToTextureTargets = GLX_DONT_CARE;

+      (*next)->yInverted = GLX_DONT_CARE;

+

+      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;

+

+      _mesa_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)

+{

+    __GLcontextModes *m;

+

+    for (m = modes; m != NULL; m = m->next)

+	if (m->visualID == vid)

+	    return m;

+

+    return NULL;

+}

+

+__GLcontextModes *

+_gl_context_modes_find_fbconfig(__GLcontextModes *modes, int fbid)

+{

+    __GLcontextModes *m;

+

+    for (m = modes; m != NULL; m = m->next)

+	if (m->fbconfigID == fbid)

+	    return m;

+

+    return NULL;

+}

+

+/**

+ * 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) &&

+	    (a->bindToTextureRgb == b->bindToTextureRgb) &&

+	    (a->bindToTextureRgba == b->bindToTextureRgba) &&

+	    (a->bindToMipmapTexture == b->bindToMipmapTexture) &&

+	    (a->bindToTextureTargets == b->bindToTextureTargets) &&

+	    (a->yInverted == b->yInverted) );

+}