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-rw-r--r--mesalib/src/mesa/drivers/dri/swrast/swrast.c1490
-rw-r--r--mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h290
-rw-r--r--mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h638
3 files changed, 1208 insertions, 1210 deletions
diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index fcb785f4c..1207825a7 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -1,746 +1,744 @@
-/*
- * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
- *
- * 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.
- */
-
-/*
- * DRI software rasterizer
- *
- * This is the mesa swrast module packaged into a DRI driver structure.
- *
- * The front-buffer is allocated by the loader. The loader provides read/write
- * callbacks for access to the front-buffer. The driver uses a scratch row for
- * front-buffer rendering to avoid repeated calls to the loader.
- *
- * The back-buffer is allocated by the driver and is private.
- */
-
-#ifdef _MSC_VER
-#define WIN32_LEAN_AND_MEAN 1
-#include <windows.h>
-#endif
-
-#include "main/context.h"
-#include "main/extensions.h"
-#include "main/formats.h"
-#include "main/framebuffer.h"
-#include "main/imports.h"
-#include "main/renderbuffer.h"
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
-#include "vbo/vbo.h"
-#include "drivers/common/driverfuncs.h"
-#include "drivers/common/meta.h"
-#include "utils.h"
-
-#include "main/teximage.h"
-#include "main/texfetch.h"
-#include "main/texformat.h"
-#include "main/texstate.h"
-
-#include "swrast_priv.h"
-
-
-/**
- * Screen and config-related functions
- */
-
-static void swrastSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
- GLint texture_format, __DRIdrawable *dPriv)
-{
- struct dri_context *dri_ctx;
- int x, y, w, h;
- __DRIscreen *sPriv = dPriv->driScreenPriv;
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
- uint32_t internalFormat;
-
- dri_ctx = pDRICtx->driverPrivate;
-
- internalFormat = (texture_format == __DRI_TEXTURE_FORMAT_RGB ? 3 : 4);
-
- texUnit = _mesa_get_current_tex_unit(&dri_ctx->Base);
- texObj = _mesa_select_tex_object(&dri_ctx->Base, texUnit, target);
- texImage = _mesa_get_tex_image(&dri_ctx->Base, texObj, target, 0);
-
- _mesa_lock_texture(&dri_ctx->Base, texObj);
-
- sPriv->swrast_loader->getDrawableInfo(dPriv, &x, &y, &w, &h, dPriv->loaderPrivate);
-
- _mesa_init_teximage_fields(&dri_ctx->Base, target, texImage,
- w, h, 1, 0, internalFormat);
-
- if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
- texImage->TexFormat = MESA_FORMAT_XRGB8888;
- else
- texImage->TexFormat = MESA_FORMAT_ARGB8888;
-
- _mesa_set_fetch_functions(texImage, 2);
-
- sPriv->swrast_loader->getImage(dPriv, x, y, w, h, (char *)texImage->Data,
- dPriv->loaderPrivate);
-
- _mesa_unlock_texture(&dri_ctx->Base, texObj);
-}
-
-static void swrastSetTexBuffer(__DRIcontext *pDRICtx, GLint target,
- __DRIdrawable *dPriv)
-{
- swrastSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
-}
-
-static const __DRItexBufferExtension swrastTexBufferExtension = {
- { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
- swrastSetTexBuffer,
- swrastSetTexBuffer2,
-};
-
-static const __DRIextension *dri_screen_extensions[] = {
- &swrastTexBufferExtension.base,
- NULL
-};
-
-static __DRIconfig **
-swrastFillInModes(__DRIscreen *psp,
- unsigned pixel_bits, unsigned depth_bits,
- unsigned stencil_bits, GLboolean have_back_buffer)
-{
- __DRIconfig **configs;
- unsigned depth_buffer_factor;
- unsigned back_buffer_factor;
- GLenum fb_format;
- GLenum fb_type;
-
- /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
- * support pageflipping at all.
- */
- static const GLenum back_buffer_modes[] = {
- GLX_NONE, GLX_SWAP_UNDEFINED_OML
- };
-
- uint8_t depth_bits_array[4];
- uint8_t stencil_bits_array[4];
- uint8_t msaa_samples_array[1];
-
- depth_bits_array[0] = 0;
- depth_bits_array[1] = 0;
- depth_bits_array[2] = depth_bits;
- depth_bits_array[3] = depth_bits;
-
- /* Just like with the accumulation buffer, always provide some modes
- * with a stencil buffer.
- */
- stencil_bits_array[0] = 0;
- stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
- stencil_bits_array[2] = 0;
- stencil_bits_array[3] = (stencil_bits == 0) ? 8 : stencil_bits;
-
- msaa_samples_array[0] = 0;
-
- depth_buffer_factor = 4;
- back_buffer_factor = 2;
-
- switch (pixel_bits) {
- case 8:
- fb_format = GL_RGB;
- fb_type = GL_UNSIGNED_BYTE_2_3_3_REV;
- break;
- case 16:
- fb_format = GL_RGB;
- fb_type = GL_UNSIGNED_SHORT_5_6_5;
- break;
- case 24:
- fb_format = GL_BGR;
- fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
- break;
- case 32:
- fb_format = GL_BGRA;
- fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
- break;
- default:
- fprintf(stderr, "[%s:%u] bad depth %d\n", __FUNCTION__, __LINE__,
- pixel_bits);
- return NULL;
- }
-
- configs = driCreateConfigs(fb_format, fb_type,
- depth_bits_array, stencil_bits_array,
- depth_buffer_factor, back_buffer_modes,
- back_buffer_factor, msaa_samples_array, 1,
- GL_TRUE);
- if (configs == NULL) {
- fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __FUNCTION__,
- __LINE__);
- return NULL;
- }
-
- return configs;
-}
-
-static const __DRIconfig **
-dri_init_screen(__DRIscreen * psp)
-{
- __DRIconfig **configs8, **configs16, **configs24, **configs32;
-
- TRACE;
-
- psp->extensions = dri_screen_extensions;
-
- configs8 = swrastFillInModes(psp, 8, 8, 0, 1);
- configs16 = swrastFillInModes(psp, 16, 16, 0, 1);
- configs24 = swrastFillInModes(psp, 24, 24, 8, 1);
- configs32 = swrastFillInModes(psp, 32, 24, 8, 1);
-
- configs16 = driConcatConfigs(configs8, configs16);
- configs24 = driConcatConfigs(configs16, configs24);
- configs32 = driConcatConfigs(configs24, configs32);
-
- return (const __DRIconfig **)configs32;
-}
-
-static void
-dri_destroy_screen(__DRIscreen * sPriv)
-{
- TRACE;
-}
-
-
-/**
- * Framebuffer and renderbuffer-related functions.
- */
-
-static GLuint
-choose_pixel_format(const GLvisual *v)
-{
- int depth = v->rgbBits;
-
- if (depth == 32
- && v->redMask == 0xff0000
- && v->greenMask == 0x00ff00
- && v->blueMask == 0x0000ff)
- return PF_A8R8G8B8;
- else if (depth == 24
- && v->redMask == 0xff0000
- && v->greenMask == 0x00ff00
- && v->blueMask == 0x0000ff)
- return PF_X8R8G8B8;
- else if (depth == 16
- && v->redMask == 0xf800
- && v->greenMask == 0x07e0
- && v->blueMask == 0x001f)
- return PF_R5G6B5;
- else if (depth == 8
- && v->redMask == 0x07
- && v->greenMask == 0x38
- && v->blueMask == 0xc0)
- return PF_R3G3B2;
-
- _mesa_problem( NULL, "unexpected format in %s", __FUNCTION__ );
- return 0;
-}
-
-static void
-swrast_delete_renderbuffer(struct gl_renderbuffer *rb)
-{
- TRACE;
-
- free(rb->Data);
- free(rb);
-}
-
-/* see bytes_per_line in libGL */
-static INLINE int
-bytes_per_line(unsigned pitch_bits, unsigned mul)
-{
- unsigned mask = mul - 1;
-
- return ((pitch_bits + mask) & ~mask) / 8;
-}
-
-static GLboolean
-swrast_alloc_front_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
-
- TRACE;
-
- rb->Data = NULL;
- rb->Width = width;
- rb->Height = height;
-
- xrb->pitch = bytes_per_line(width * xrb->bpp, 32);
-
- return GL_TRUE;
-}
-
-static GLboolean
-swrast_alloc_back_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
-
- TRACE;
-
- free(rb->Data);
-
- swrast_alloc_front_storage(ctx, rb, internalFormat, width, height);
-
- rb->Data = malloc(height * xrb->pitch);
-
- return GL_TRUE;
-}
-
-static struct swrast_renderbuffer *
-swrast_new_renderbuffer(const GLvisual *visual, GLboolean front)
-{
- struct swrast_renderbuffer *xrb = calloc(1, sizeof *xrb);
- GLuint pixel_format;
-
- TRACE;
-
- if (!xrb)
- return NULL;
-
- _mesa_init_renderbuffer(&xrb->Base, 0);
-
- pixel_format = choose_pixel_format(visual);
-
- xrb->Base.Delete = swrast_delete_renderbuffer;
- if (front) {
- xrb->Base.AllocStorage = swrast_alloc_front_storage;
- swrast_set_span_funcs_front(xrb, pixel_format);
- }
- else {
- xrb->Base.AllocStorage = swrast_alloc_back_storage;
- swrast_set_span_funcs_back(xrb, pixel_format);
- }
-
- switch (pixel_format) {
- case PF_A8R8G8B8:
- xrb->Base.Format = MESA_FORMAT_ARGB8888;
- xrb->Base.InternalFormat = GL_RGBA;
- xrb->Base._BaseFormat = GL_RGBA;
- xrb->Base.DataType = GL_UNSIGNED_BYTE;
- xrb->bpp = 32;
- break;
- case PF_X8R8G8B8:
- xrb->Base.Format = MESA_FORMAT_ARGB8888; /* XXX */
- xrb->Base.InternalFormat = GL_RGB;
- xrb->Base._BaseFormat = GL_RGB;
- xrb->Base.DataType = GL_UNSIGNED_BYTE;
- xrb->bpp = 32;
- break;
- case PF_R5G6B5:
- xrb->Base.Format = MESA_FORMAT_RGB565;
- xrb->Base.InternalFormat = GL_RGB;
- xrb->Base._BaseFormat = GL_RGB;
- xrb->Base.DataType = GL_UNSIGNED_BYTE;
- xrb->bpp = 16;
- break;
- case PF_R3G3B2:
- xrb->Base.Format = MESA_FORMAT_RGB332;
- xrb->Base.InternalFormat = GL_RGB;
- xrb->Base._BaseFormat = GL_RGB;
- xrb->Base.DataType = GL_UNSIGNED_BYTE;
- xrb->bpp = 8;
- break;
- default:
- return NULL;
- }
-
- return xrb;
-}
-
-static GLboolean
-dri_create_buffer(__DRIscreen * sPriv,
- __DRIdrawable * dPriv,
- const __GLcontextModes * visual, GLboolean isPixmap)
-{
- struct dri_drawable *drawable = NULL;
- GLframebuffer *fb;
- struct swrast_renderbuffer *frontrb, *backrb;
-
- TRACE;
-
- drawable = CALLOC_STRUCT(dri_drawable);
- if (drawable == NULL)
- goto drawable_fail;
-
- dPriv->driverPrivate = drawable;
- drawable->dPriv = dPriv;
-
- drawable->row = malloc(MAX_WIDTH * 4);
- if (drawable->row == NULL)
- goto drawable_fail;
-
- fb = &drawable->Base;
-
- /* basic framebuffer setup */
- _mesa_initialize_window_framebuffer(fb, visual);
-
- /* add front renderbuffer */
- frontrb = swrast_new_renderbuffer(visual, GL_TRUE);
- _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontrb->Base);
-
- /* add back renderbuffer */
- if (visual->doubleBufferMode) {
- backrb = swrast_new_renderbuffer(visual, GL_FALSE);
- _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backrb->Base);
- }
-
- /* add software renderbuffers */
- _mesa_add_soft_renderbuffers(fb,
- GL_FALSE, /* color */
- visual->haveDepthBuffer,
- visual->haveStencilBuffer,
- visual->haveAccumBuffer,
- GL_FALSE, /* alpha */
- GL_FALSE /* aux bufs */);
-
- return GL_TRUE;
-
-drawable_fail:
-
- if (drawable)
- free(drawable->row);
-
- FREE(drawable);
-
- return GL_FALSE;
-}
-
-static void
-dri_destroy_buffer(__DRIdrawable * dPriv)
-{
- TRACE;
-
- if (dPriv) {
- struct dri_drawable *drawable = dri_drawable(dPriv);
- GLframebuffer *fb;
-
- free(drawable->row);
-
- fb = &drawable->Base;
-
- fb->DeletePending = GL_TRUE;
- _mesa_reference_framebuffer(&fb, NULL);
- }
-}
-
-static void
-dri_swap_buffers(__DRIdrawable * dPriv)
-{
- __DRIscreen *sPriv = dPriv->driScreenPriv;
-
- GET_CURRENT_CONTEXT(ctx);
-
- struct dri_drawable *drawable = dri_drawable(dPriv);
- GLframebuffer *fb;
- struct swrast_renderbuffer *frontrb, *backrb;
-
- TRACE;
-
- fb = &drawable->Base;
-
- frontrb =
- swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
- backrb =
- swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);
-
- /* check for signle-buffered */
- if (backrb == NULL)
- return;
-
- /* check if swapping currently bound buffer */
- if (ctx && ctx->DrawBuffer == fb) {
- /* flush pending rendering */
- _mesa_notifySwapBuffers(ctx);
- }
-
- sPriv->swrast_loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
- 0, 0,
- frontrb->Base.Width,
- frontrb->Base.Height,
- backrb->Base.Data,
- dPriv->loaderPrivate);
-}
-
-
-/**
- * General device driver functions.
- */
-
-static void
-get_window_size( GLframebuffer *fb, GLsizei *w, GLsizei *h )
-{
- __DRIdrawable *dPriv = swrast_drawable(fb)->dPriv;
- __DRIscreen *sPriv = dPriv->driScreenPriv;
- int x, y;
-
- sPriv->swrast_loader->getDrawableInfo(dPriv,
- &x, &y, w, h,
- dPriv->loaderPrivate);
-}
-
-static void
-swrast_check_and_update_window_size( GLcontext *ctx, GLframebuffer *fb )
-{
- GLsizei width, height;
-
- get_window_size(fb, &width, &height);
- if (fb->Width != width || fb->Height != height) {
- _mesa_resize_framebuffer(ctx, fb, width, height);
- }
-}
-
-static const GLubyte *
-get_string(GLcontext *ctx, GLenum pname)
-{
- (void) ctx;
- switch (pname) {
- case GL_VENDOR:
- return (const GLubyte *) "Mesa Project";
- case GL_RENDERER:
- return (const GLubyte *) "Software Rasterizer";
- default:
- return NULL;
- }
-}
-
-static void
-update_state( GLcontext *ctx, GLuint new_state )
-{
- /* not much to do here - pass it on */
- _swrast_InvalidateState( ctx, new_state );
- _swsetup_InvalidateState( ctx, new_state );
- _vbo_InvalidateState( ctx, new_state );
- _tnl_InvalidateState( ctx, new_state );
-}
-
-static void
-viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
- GLframebuffer *draw = ctx->WinSysDrawBuffer;
- GLframebuffer *read = ctx->WinSysReadBuffer;
-
- swrast_check_and_update_window_size(ctx, draw);
- swrast_check_and_update_window_size(ctx, read);
-}
-
-static gl_format swrastChooseTextureFormat(GLcontext * ctx,
- GLint internalFormat,
- GLenum format,
- GLenum type)
-{
- if (internalFormat == GL_RGB)
- return MESA_FORMAT_XRGB8888;
- return _mesa_choose_tex_format(ctx, internalFormat, format, type);
-}
-
-static void
-swrast_init_driver_functions(struct dd_function_table *driver)
-{
- driver->GetString = get_string;
- driver->UpdateState = update_state;
- driver->GetBufferSize = NULL;
- driver->Viewport = viewport;
- driver->ChooseTextureFormat = swrastChooseTextureFormat;
-}
-
-
-/**
- * Context-related functions.
- */
-
-static GLboolean
-dri_create_context(gl_api api,
- const __GLcontextModes * visual,
- __DRIcontext * cPriv, void *sharedContextPrivate)
-{
- struct dri_context *ctx = NULL;
- struct dri_context *share = (struct dri_context *)sharedContextPrivate;
- GLcontext *mesaCtx = NULL;
- GLcontext *sharedCtx = NULL;
- struct dd_function_table functions;
-
- TRACE;
-
- ctx = CALLOC_STRUCT(dri_context);
- if (ctx == NULL)
- goto context_fail;
-
- cPriv->driverPrivate = ctx;
- ctx->cPriv = cPriv;
-
- /* build table of device driver functions */
- _mesa_init_driver_functions(&functions);
- swrast_init_driver_functions(&functions);
-
- if (share) {
- sharedCtx = &share->Base;
- }
-
- mesaCtx = &ctx->Base;
-
- /* basic context setup */
- if (!_mesa_initialize_context(mesaCtx, visual, sharedCtx, &functions, (void *) cPriv)) {
- goto context_fail;
- }
-
- /* do bounds checking to prevent segfaults and server crashes! */
- mesaCtx->Const.CheckArrayBounds = GL_TRUE;
-
- /* create module contexts */
- _swrast_CreateContext( mesaCtx );
- _vbo_CreateContext( mesaCtx );
- _tnl_CreateContext( mesaCtx );
- _swsetup_CreateContext( mesaCtx );
- _swsetup_Wakeup( mesaCtx );
-
- /* use default TCL pipeline */
- {
- TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
- tnl->Driver.RunPipeline = _tnl_run_pipeline;
- }
-
- _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);
- _mesa_enable_2_1_extensions(mesaCtx);
-
- _mesa_meta_init(mesaCtx);
-
- driInitExtensions( mesaCtx, NULL, GL_FALSE );
-
- return GL_TRUE;
-
-context_fail:
-
- FREE(ctx);
-
- return GL_FALSE;
-}
-
-static void
-dri_destroy_context(__DRIcontext * cPriv)
-{
- TRACE;
-
- if (cPriv) {
- struct dri_context *ctx = dri_context(cPriv);
- GLcontext *mesaCtx;
-
- mesaCtx = &ctx->Base;
-
- _mesa_meta_free(mesaCtx);
- _swsetup_DestroyContext( mesaCtx );
- _swrast_DestroyContext( mesaCtx );
- _tnl_DestroyContext( mesaCtx );
- _vbo_DestroyContext( mesaCtx );
- _mesa_destroy_context( mesaCtx );
- }
-}
-
-static GLboolean
-dri_make_current(__DRIcontext * cPriv,
- __DRIdrawable * driDrawPriv,
- __DRIdrawable * driReadPriv)
-{
- GLcontext *mesaCtx;
- GLframebuffer *mesaDraw;
- GLframebuffer *mesaRead;
- TRACE;
-
- if (cPriv) {
- struct dri_context *ctx = dri_context(cPriv);
- struct dri_drawable *draw;
- struct dri_drawable *read;
-
- if (!driDrawPriv || !driReadPriv)
- return GL_FALSE;
-
- draw = dri_drawable(driDrawPriv);
- read = dri_drawable(driReadPriv);
- mesaCtx = &ctx->Base;
- mesaDraw = &draw->Base;
- mesaRead = &read->Base;
-
- /* check for same context and buffer */
- if (mesaCtx == _mesa_get_current_context()
- && mesaCtx->DrawBuffer == mesaDraw
- && mesaCtx->ReadBuffer == mesaRead) {
- return GL_TRUE;
- }
-
- _glapi_check_multithread();
-
- swrast_check_and_update_window_size(mesaCtx, mesaDraw);
- if (mesaRead != mesaDraw)
- swrast_check_and_update_window_size(mesaCtx, mesaRead);
-
- _mesa_make_current( mesaCtx,
- mesaDraw,
- mesaRead );
- }
- else {
- /* unbind */
- _mesa_make_current( NULL, NULL, NULL );
- }
-
- return GL_TRUE;
-}
-
-static GLboolean
-dri_unbind_context(__DRIcontext * cPriv)
-{
- TRACE;
- (void) cPriv;
-
- /* Unset current context and dispath table */
- _mesa_make_current(NULL, NULL, NULL);
-
- return GL_TRUE;
-}
-
-
-const struct __DriverAPIRec driDriverAPI = {
- /*.InitScreen = */dri_init_screen,
- /*.DestroyScreen = */dri_destroy_screen,
- /*.CreateContext = */dri_create_context,
- /*.DestroyContext = */dri_destroy_context,
- /*.CreateBuffer = */dri_create_buffer,
- /*.DestroyBuffer = */dri_destroy_buffer,
- /*.SwapBuffers = */dri_swap_buffers,
- /*.MakeCurrent = */dri_make_current,
- /*.UnbindContext = */dri_unbind_context,
-};
-
-/* This is the table of extensions that the loader will dlsym() for. */
-PUBLIC const __DRIextension *__driDriverExtensions[] = {
- &driCoreExtension.base,
- &driSWRastExtension.base,
- NULL
-};
+/*
+ * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
+ *
+ * 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.
+ */
+
+/*
+ * DRI software rasterizer
+ *
+ * This is the mesa swrast module packaged into a DRI driver structure.
+ *
+ * The front-buffer is allocated by the loader. The loader provides read/write
+ * callbacks for access to the front-buffer. The driver uses a scratch row for
+ * front-buffer rendering to avoid repeated calls to the loader.
+ *
+ * The back-buffer is allocated by the driver and is private.
+ */
+
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN 1
+#include <windows.h>
+#endif
+
+#include "main/context.h"
+#include "main/extensions.h"
+#include "main/formats.h"
+#include "main/framebuffer.h"
+#include "main/imports.h"
+#include "main/renderbuffer.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#include "vbo/vbo.h"
+#include "drivers/common/driverfuncs.h"
+#include "drivers/common/meta.h"
+#include "utils.h"
+
+#include "main/teximage.h"
+#include "main/texformat.h"
+#include "main/texstate.h"
+
+#include "swrast_priv.h"
+
+
+/**
+ * Screen and config-related functions
+ */
+
+static void swrastSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
+ GLint texture_format, __DRIdrawable *dPriv)
+{
+ struct dri_context *dri_ctx;
+ int x, y, w, h;
+ __DRIscreen *sPriv = dPriv->driScreenPriv;
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ uint32_t internalFormat;
+ gl_format texFormat;
+
+ dri_ctx = pDRICtx->driverPrivate;
+
+ internalFormat = (texture_format == __DRI_TEXTURE_FORMAT_RGB ? 3 : 4);
+
+ texUnit = _mesa_get_current_tex_unit(&dri_ctx->Base);
+ texObj = _mesa_select_tex_object(&dri_ctx->Base, texUnit, target);
+ texImage = _mesa_get_tex_image(&dri_ctx->Base, texObj, target, 0);
+
+ _mesa_lock_texture(&dri_ctx->Base, texObj);
+
+ sPriv->swrast_loader->getDrawableInfo(dPriv, &x, &y, &w, &h, dPriv->loaderPrivate);
+
+ if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
+ texFormat = MESA_FORMAT_XRGB8888;
+ else
+ texFormat = MESA_FORMAT_ARGB8888;
+
+ _mesa_init_teximage_fields(&dri_ctx->Base, target, texImage,
+ w, h, 1, 0, internalFormat, texFormat);
+
+ sPriv->swrast_loader->getImage(dPriv, x, y, w, h, (char *)texImage->Data,
+ dPriv->loaderPrivate);
+
+ _mesa_unlock_texture(&dri_ctx->Base, texObj);
+}
+
+static void swrastSetTexBuffer(__DRIcontext *pDRICtx, GLint target,
+ __DRIdrawable *dPriv)
+{
+ swrastSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
+}
+
+static const __DRItexBufferExtension swrastTexBufferExtension = {
+ { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
+ swrastSetTexBuffer,
+ swrastSetTexBuffer2,
+};
+
+static const __DRIextension *dri_screen_extensions[] = {
+ &swrastTexBufferExtension.base,
+ NULL
+};
+
+static __DRIconfig **
+swrastFillInModes(__DRIscreen *psp,
+ unsigned pixel_bits, unsigned depth_bits,
+ unsigned stencil_bits, GLboolean have_back_buffer)
+{
+ __DRIconfig **configs;
+ unsigned depth_buffer_factor;
+ unsigned back_buffer_factor;
+ GLenum fb_format;
+ GLenum fb_type;
+
+ /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
+ * support pageflipping at all.
+ */
+ static const GLenum back_buffer_modes[] = {
+ GLX_NONE, GLX_SWAP_UNDEFINED_OML
+ };
+
+ uint8_t depth_bits_array[4];
+ uint8_t stencil_bits_array[4];
+ uint8_t msaa_samples_array[1];
+
+ depth_bits_array[0] = 0;
+ depth_bits_array[1] = 0;
+ depth_bits_array[2] = depth_bits;
+ depth_bits_array[3] = depth_bits;
+
+ /* Just like with the accumulation buffer, always provide some modes
+ * with a stencil buffer.
+ */
+ stencil_bits_array[0] = 0;
+ stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
+ stencil_bits_array[2] = 0;
+ stencil_bits_array[3] = (stencil_bits == 0) ? 8 : stencil_bits;
+
+ msaa_samples_array[0] = 0;
+
+ depth_buffer_factor = 4;
+ back_buffer_factor = 2;
+
+ switch (pixel_bits) {
+ case 8:
+ fb_format = GL_RGB;
+ fb_type = GL_UNSIGNED_BYTE_2_3_3_REV;
+ break;
+ case 16:
+ fb_format = GL_RGB;
+ fb_type = GL_UNSIGNED_SHORT_5_6_5;
+ break;
+ case 24:
+ fb_format = GL_BGR;
+ fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ break;
+ case 32:
+ fb_format = GL_BGRA;
+ fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ break;
+ default:
+ fprintf(stderr, "[%s:%u] bad depth %d\n", __FUNCTION__, __LINE__,
+ pixel_bits);
+ return NULL;
+ }
+
+ configs = driCreateConfigs(fb_format, fb_type,
+ depth_bits_array, stencil_bits_array,
+ depth_buffer_factor, back_buffer_modes,
+ back_buffer_factor, msaa_samples_array, 1,
+ GL_TRUE);
+ if (configs == NULL) {
+ fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __FUNCTION__,
+ __LINE__);
+ return NULL;
+ }
+
+ return configs;
+}
+
+static const __DRIconfig **
+dri_init_screen(__DRIscreen * psp)
+{
+ __DRIconfig **configs8, **configs16, **configs24, **configs32;
+
+ TRACE;
+
+ psp->extensions = dri_screen_extensions;
+
+ configs8 = swrastFillInModes(psp, 8, 8, 0, 1);
+ configs16 = swrastFillInModes(psp, 16, 16, 0, 1);
+ configs24 = swrastFillInModes(psp, 24, 24, 8, 1);
+ configs32 = swrastFillInModes(psp, 32, 24, 8, 1);
+
+ configs16 = driConcatConfigs(configs8, configs16);
+ configs24 = driConcatConfigs(configs16, configs24);
+ configs32 = driConcatConfigs(configs24, configs32);
+
+ return (const __DRIconfig **)configs32;
+}
+
+static void
+dri_destroy_screen(__DRIscreen * sPriv)
+{
+ TRACE;
+}
+
+
+/**
+ * Framebuffer and renderbuffer-related functions.
+ */
+
+static GLuint
+choose_pixel_format(const struct gl_config *v)
+{
+ int depth = v->rgbBits;
+
+ if (depth == 32
+ && v->redMask == 0xff0000
+ && v->greenMask == 0x00ff00
+ && v->blueMask == 0x0000ff)
+ return PF_A8R8G8B8;
+ else if (depth == 24
+ && v->redMask == 0xff0000
+ && v->greenMask == 0x00ff00
+ && v->blueMask == 0x0000ff)
+ return PF_X8R8G8B8;
+ else if (depth == 16
+ && v->redMask == 0xf800
+ && v->greenMask == 0x07e0
+ && v->blueMask == 0x001f)
+ return PF_R5G6B5;
+ else if (depth == 8
+ && v->redMask == 0x07
+ && v->greenMask == 0x38
+ && v->blueMask == 0xc0)
+ return PF_R3G3B2;
+
+ _mesa_problem( NULL, "unexpected format in %s", __FUNCTION__ );
+ return 0;
+}
+
+static void
+swrast_delete_renderbuffer(struct gl_renderbuffer *rb)
+{
+ TRACE;
+
+ free(rb->Data);
+ free(rb);
+}
+
+/* see bytes_per_line in libGL */
+static INLINE int
+bytes_per_line(unsigned pitch_bits, unsigned mul)
+{
+ unsigned mask = mul - 1;
+
+ return ((pitch_bits + mask) & ~mask) / 8;
+}
+
+static GLboolean
+swrast_alloc_front_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLenum internalFormat, GLuint width, GLuint height)
+{
+ struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
+
+ TRACE;
+
+ rb->Data = NULL;
+ rb->Width = width;
+ rb->Height = height;
+
+ xrb->pitch = bytes_per_line(width * xrb->bpp, 32);
+
+ return GL_TRUE;
+}
+
+static GLboolean
+swrast_alloc_back_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLenum internalFormat, GLuint width, GLuint height)
+{
+ struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
+
+ TRACE;
+
+ free(rb->Data);
+
+ swrast_alloc_front_storage(ctx, rb, internalFormat, width, height);
+
+ rb->Data = malloc(height * xrb->pitch);
+
+ return GL_TRUE;
+}
+
+static struct swrast_renderbuffer *
+swrast_new_renderbuffer(const struct gl_config *visual, GLboolean front)
+{
+ struct swrast_renderbuffer *xrb = calloc(1, sizeof *xrb);
+ GLuint pixel_format;
+
+ TRACE;
+
+ if (!xrb)
+ return NULL;
+
+ _mesa_init_renderbuffer(&xrb->Base, 0);
+
+ pixel_format = choose_pixel_format(visual);
+
+ xrb->Base.Delete = swrast_delete_renderbuffer;
+ if (front) {
+ xrb->Base.AllocStorage = swrast_alloc_front_storage;
+ swrast_set_span_funcs_front(xrb, pixel_format);
+ }
+ else {
+ xrb->Base.AllocStorage = swrast_alloc_back_storage;
+ swrast_set_span_funcs_back(xrb, pixel_format);
+ }
+
+ switch (pixel_format) {
+ case PF_A8R8G8B8:
+ xrb->Base.Format = MESA_FORMAT_ARGB8888;
+ xrb->Base.InternalFormat = GL_RGBA;
+ xrb->Base._BaseFormat = GL_RGBA;
+ xrb->Base.DataType = GL_UNSIGNED_BYTE;
+ xrb->bpp = 32;
+ break;
+ case PF_X8R8G8B8:
+ xrb->Base.Format = MESA_FORMAT_ARGB8888; /* XXX */
+ xrb->Base.InternalFormat = GL_RGB;
+ xrb->Base._BaseFormat = GL_RGB;
+ xrb->Base.DataType = GL_UNSIGNED_BYTE;
+ xrb->bpp = 32;
+ break;
+ case PF_R5G6B5:
+ xrb->Base.Format = MESA_FORMAT_RGB565;
+ xrb->Base.InternalFormat = GL_RGB;
+ xrb->Base._BaseFormat = GL_RGB;
+ xrb->Base.DataType = GL_UNSIGNED_BYTE;
+ xrb->bpp = 16;
+ break;
+ case PF_R3G3B2:
+ xrb->Base.Format = MESA_FORMAT_RGB332;
+ xrb->Base.InternalFormat = GL_RGB;
+ xrb->Base._BaseFormat = GL_RGB;
+ xrb->Base.DataType = GL_UNSIGNED_BYTE;
+ xrb->bpp = 8;
+ break;
+ default:
+ return NULL;
+ }
+
+ return xrb;
+}
+
+static GLboolean
+dri_create_buffer(__DRIscreen * sPriv,
+ __DRIdrawable * dPriv,
+ const struct gl_config * visual, GLboolean isPixmap)
+{
+ struct dri_drawable *drawable = NULL;
+ struct gl_framebuffer *fb;
+ struct swrast_renderbuffer *frontrb, *backrb;
+
+ TRACE;
+
+ drawable = CALLOC_STRUCT(dri_drawable);
+ if (drawable == NULL)
+ goto drawable_fail;
+
+ dPriv->driverPrivate = drawable;
+ drawable->dPriv = dPriv;
+
+ drawable->row = malloc(MAX_WIDTH * 4);
+ if (drawable->row == NULL)
+ goto drawable_fail;
+
+ fb = &drawable->Base;
+
+ /* basic framebuffer setup */
+ _mesa_initialize_window_framebuffer(fb, visual);
+
+ /* add front renderbuffer */
+ frontrb = swrast_new_renderbuffer(visual, GL_TRUE);
+ _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontrb->Base);
+
+ /* add back renderbuffer */
+ if (visual->doubleBufferMode) {
+ backrb = swrast_new_renderbuffer(visual, GL_FALSE);
+ _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backrb->Base);
+ }
+
+ /* add software renderbuffers */
+ _mesa_add_soft_renderbuffers(fb,
+ GL_FALSE, /* color */
+ visual->haveDepthBuffer,
+ visual->haveStencilBuffer,
+ visual->haveAccumBuffer,
+ GL_FALSE, /* alpha */
+ GL_FALSE /* aux bufs */);
+
+ return GL_TRUE;
+
+drawable_fail:
+
+ if (drawable)
+ free(drawable->row);
+
+ FREE(drawable);
+
+ return GL_FALSE;
+}
+
+static void
+dri_destroy_buffer(__DRIdrawable * dPriv)
+{
+ TRACE;
+
+ if (dPriv) {
+ struct dri_drawable *drawable = dri_drawable(dPriv);
+ struct gl_framebuffer *fb;
+
+ free(drawable->row);
+
+ fb = &drawable->Base;
+
+ fb->DeletePending = GL_TRUE;
+ _mesa_reference_framebuffer(&fb, NULL);
+ }
+}
+
+static void
+dri_swap_buffers(__DRIdrawable * dPriv)
+{
+ __DRIscreen *sPriv = dPriv->driScreenPriv;
+
+ GET_CURRENT_CONTEXT(ctx);
+
+ struct dri_drawable *drawable = dri_drawable(dPriv);
+ struct gl_framebuffer *fb;
+ struct swrast_renderbuffer *frontrb, *backrb;
+
+ TRACE;
+
+ fb = &drawable->Base;
+
+ frontrb =
+ swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
+ backrb =
+ swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);
+
+ /* check for signle-buffered */
+ if (backrb == NULL)
+ return;
+
+ /* check if swapping currently bound buffer */
+ if (ctx && ctx->DrawBuffer == fb) {
+ /* flush pending rendering */
+ _mesa_notifySwapBuffers(ctx);
+ }
+
+ sPriv->swrast_loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
+ 0, 0,
+ frontrb->Base.Width,
+ frontrb->Base.Height,
+ backrb->Base.Data,
+ dPriv->loaderPrivate);
+}
+
+
+/**
+ * General device driver functions.
+ */
+
+static void
+get_window_size( struct gl_framebuffer *fb, GLsizei *w, GLsizei *h )
+{
+ __DRIdrawable *dPriv = swrast_drawable(fb)->dPriv;
+ __DRIscreen *sPriv = dPriv->driScreenPriv;
+ int x, y;
+
+ sPriv->swrast_loader->getDrawableInfo(dPriv,
+ &x, &y, w, h,
+ dPriv->loaderPrivate);
+}
+
+static void
+swrast_check_and_update_window_size( struct gl_context *ctx, struct gl_framebuffer *fb )
+{
+ GLsizei width, height;
+
+ get_window_size(fb, &width, &height);
+ if (fb->Width != width || fb->Height != height) {
+ _mesa_resize_framebuffer(ctx, fb, width, height);
+ }
+}
+
+static const GLubyte *
+get_string(struct gl_context *ctx, GLenum pname)
+{
+ (void) ctx;
+ switch (pname) {
+ case GL_VENDOR:
+ return (const GLubyte *) "Mesa Project";
+ case GL_RENDERER:
+ return (const GLubyte *) "Software Rasterizer";
+ default:
+ return NULL;
+ }
+}
+
+static void
+update_state( struct gl_context *ctx, GLuint new_state )
+{
+ /* not much to do here - pass it on */
+ _swrast_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+ _vbo_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+}
+
+static void
+viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+{
+ struct gl_framebuffer *draw = ctx->WinSysDrawBuffer;
+ struct gl_framebuffer *read = ctx->WinSysReadBuffer;
+
+ swrast_check_and_update_window_size(ctx, draw);
+ swrast_check_and_update_window_size(ctx, read);
+}
+
+static gl_format swrastChooseTextureFormat(struct gl_context * ctx,
+ GLint internalFormat,
+ GLenum format,
+ GLenum type)
+{
+ if (internalFormat == GL_RGB)
+ return MESA_FORMAT_XRGB8888;
+ return _mesa_choose_tex_format(ctx, internalFormat, format, type);
+}
+
+static void
+swrast_init_driver_functions(struct dd_function_table *driver)
+{
+ driver->GetString = get_string;
+ driver->UpdateState = update_state;
+ driver->GetBufferSize = NULL;
+ driver->Viewport = viewport;
+ driver->ChooseTextureFormat = swrastChooseTextureFormat;
+}
+
+
+/**
+ * Context-related functions.
+ */
+
+static GLboolean
+dri_create_context(gl_api api,
+ const struct gl_config * visual,
+ __DRIcontext * cPriv, void *sharedContextPrivate)
+{
+ struct dri_context *ctx = NULL;
+ struct dri_context *share = (struct dri_context *)sharedContextPrivate;
+ struct gl_context *mesaCtx = NULL;
+ struct gl_context *sharedCtx = NULL;
+ struct dd_function_table functions;
+
+ TRACE;
+
+ ctx = CALLOC_STRUCT(dri_context);
+ if (ctx == NULL)
+ goto context_fail;
+
+ cPriv->driverPrivate = ctx;
+ ctx->cPriv = cPriv;
+
+ /* build table of device driver functions */
+ _mesa_init_driver_functions(&functions);
+ swrast_init_driver_functions(&functions);
+
+ if (share) {
+ sharedCtx = &share->Base;
+ }
+
+ mesaCtx = &ctx->Base;
+
+ /* basic context setup */
+ if (!_mesa_initialize_context(mesaCtx, visual, sharedCtx, &functions, (void *) cPriv)) {
+ goto context_fail;
+ }
+
+ /* do bounds checking to prevent segfaults and server crashes! */
+ mesaCtx->Const.CheckArrayBounds = GL_TRUE;
+
+ /* create module contexts */
+ _swrast_CreateContext( mesaCtx );
+ _vbo_CreateContext( mesaCtx );
+ _tnl_CreateContext( mesaCtx );
+ _swsetup_CreateContext( mesaCtx );
+ _swsetup_Wakeup( mesaCtx );
+
+ /* use default TCL pipeline */
+ {
+ TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+ }
+
+ _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);
+ _mesa_enable_2_1_extensions(mesaCtx);
+
+ _mesa_meta_init(mesaCtx);
+
+ driInitExtensions( mesaCtx, NULL, GL_FALSE );
+
+ return GL_TRUE;
+
+context_fail:
+
+ FREE(ctx);
+
+ return GL_FALSE;
+}
+
+static void
+dri_destroy_context(__DRIcontext * cPriv)
+{
+ TRACE;
+
+ if (cPriv) {
+ struct dri_context *ctx = dri_context(cPriv);
+ struct gl_context *mesaCtx;
+
+ mesaCtx = &ctx->Base;
+
+ _mesa_meta_free(mesaCtx);
+ _swsetup_DestroyContext( mesaCtx );
+ _swrast_DestroyContext( mesaCtx );
+ _tnl_DestroyContext( mesaCtx );
+ _vbo_DestroyContext( mesaCtx );
+ _mesa_destroy_context( mesaCtx );
+ }
+}
+
+static GLboolean
+dri_make_current(__DRIcontext * cPriv,
+ __DRIdrawable * driDrawPriv,
+ __DRIdrawable * driReadPriv)
+{
+ struct gl_context *mesaCtx;
+ struct gl_framebuffer *mesaDraw;
+ struct gl_framebuffer *mesaRead;
+ TRACE;
+
+ if (cPriv) {
+ struct dri_context *ctx = dri_context(cPriv);
+ struct dri_drawable *draw;
+ struct dri_drawable *read;
+
+ if (!driDrawPriv || !driReadPriv)
+ return GL_FALSE;
+
+ draw = dri_drawable(driDrawPriv);
+ read = dri_drawable(driReadPriv);
+ mesaCtx = &ctx->Base;
+ mesaDraw = &draw->Base;
+ mesaRead = &read->Base;
+
+ /* check for same context and buffer */
+ if (mesaCtx == _mesa_get_current_context()
+ && mesaCtx->DrawBuffer == mesaDraw
+ && mesaCtx->ReadBuffer == mesaRead) {
+ return GL_TRUE;
+ }
+
+ _glapi_check_multithread();
+
+ swrast_check_and_update_window_size(mesaCtx, mesaDraw);
+ if (mesaRead != mesaDraw)
+ swrast_check_and_update_window_size(mesaCtx, mesaRead);
+
+ _mesa_make_current( mesaCtx,
+ mesaDraw,
+ mesaRead );
+ }
+ else {
+ /* unbind */
+ _mesa_make_current( NULL, NULL, NULL );
+ }
+
+ return GL_TRUE;
+}
+
+static GLboolean
+dri_unbind_context(__DRIcontext * cPriv)
+{
+ TRACE;
+ (void) cPriv;
+
+ /* Unset current context and dispath table */
+ _mesa_make_current(NULL, NULL, NULL);
+
+ return GL_TRUE;
+}
+
+
+const struct __DriverAPIRec driDriverAPI = {
+ /*.InitScreen = */dri_init_screen,
+ /*.DestroyScreen = */dri_destroy_screen,
+ /*.CreateContext = */dri_create_context,
+ /*.DestroyContext = */dri_destroy_context,
+ /*.CreateBuffer = */dri_create_buffer,
+ /*.DestroyBuffer = */dri_destroy_buffer,
+ /*.SwapBuffers = */dri_swap_buffers,
+ /*.MakeCurrent = */dri_make_current,
+ /*.UnbindContext = */dri_unbind_context,
+};
+
+/* This is the table of extensions that the loader will dlsym() for. */
+PUBLIC const __DRIextension *__driDriverExtensions[] = {
+ &driCoreExtension.base,
+ &driSWRastExtension.base,
+ NULL
+};
diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h b/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
index ebef8455a..e61965147 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
@@ -1,145 +1,145 @@
-/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
- * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
- *
- * 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 _SWRAST_PRIV_H
-#define _SWRAST_PRIV_H
-
-#include <GL/gl.h>
-#include <GL/internal/dri_interface.h>
-#include "main/mtypes.h"
-#include "drisw_util.h"
-
-#ifdef _MSC_VER
-#ifdef PUBLIC
-#undef PUBLIC
-#endif
-#define PUBLIC __declspec(dllexport)
-#endif
-
-
-/**
- * Debugging
- */
-#define DEBUG_CORE 0
-#define DEBUG_SPAN 0
-
-#if DEBUG_CORE
-#define TRACE printf("--> %s\n", __FUNCTION__)
-#else
-#define TRACE
-#endif
-
-#if DEBUG_SPAN
-#define TRACE_SPAN printf("--> %s\n", __FUNCTION__)
-#else
-#define TRACE_SPAN
-#endif
-
-
-/**
- * Data types
- */
-struct dri_context
-{
- /* mesa, base class, must be first */
- GLcontext Base;
-
- /* dri */
- __DRIcontext *cPriv;
-};
-
-static INLINE struct dri_context *
-dri_context(__DRIcontext * driContextPriv)
-{
- return (struct dri_context *)driContextPriv->driverPrivate;
-}
-
-static INLINE struct dri_context *
-swrast_context(GLcontext *ctx)
-{
- return (struct dri_context *) ctx;
-}
-
-struct dri_drawable
-{
- /* mesa, base class, must be first */
- GLframebuffer Base;
-
- /* dri */
- __DRIdrawable *dPriv;
-
- /* scratch row for optimized front-buffer rendering */
- char *row;
-};
-
-static INLINE struct dri_drawable *
-dri_drawable(__DRIdrawable * driDrawPriv)
-{
- return (struct dri_drawable *)driDrawPriv->driverPrivate;
-}
-
-static INLINE struct dri_drawable *
-swrast_drawable(GLframebuffer *fb)
-{
- return (struct dri_drawable *) fb;
-}
-
-struct swrast_renderbuffer {
- struct gl_renderbuffer Base;
-
- /* renderbuffer pitch (in bytes) */
- GLuint pitch;
- /* bits per pixel of storage */
- GLuint bpp;
-};
-
-static INLINE struct swrast_renderbuffer *
-swrast_renderbuffer(struct gl_renderbuffer *rb)
-{
- return (struct swrast_renderbuffer *) rb;
-}
-
-
-/**
- * Pixel formats we support
- */
-#define PF_A8R8G8B8 1 /**< 32bpp TrueColor: 8-A, 8-R, 8-G, 8-B bits */
-#define PF_R5G6B5 2 /**< 16bpp TrueColor: 5-R, 6-G, 5-B bits */
-#define PF_R3G3B2 3 /**< 8bpp TrueColor: 3-R, 3-G, 2-B bits */
-#define PF_X8R8G8B8 4 /**< 32bpp TrueColor: 8-R, 8-G, 8-B bits */
-
-
-/* swrast_span.c */
-
-extern void
-swrast_set_span_funcs_back(struct swrast_renderbuffer *xrb,
- GLuint pixel_format);
-
-extern void
-swrast_set_span_funcs_front(struct swrast_renderbuffer *xrb,
- GLuint pixel_format);
-
-#endif /* _SWRAST_PRIV_H_ */
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
+ *
+ * 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 _SWRAST_PRIV_H
+#define _SWRAST_PRIV_H
+
+#include <GL/gl.h>
+#include <GL/internal/dri_interface.h>
+#include "main/mtypes.h"
+#include "drisw_util.h"
+
+#ifdef _MSC_VER
+#ifdef PUBLIC
+#undef PUBLIC
+#endif
+#define PUBLIC __declspec(dllexport)
+#endif
+
+
+/**
+ * Debugging
+ */
+#define DEBUG_CORE 0
+#define DEBUG_SPAN 0
+
+#if DEBUG_CORE
+#define TRACE printf("--> %s\n", __FUNCTION__)
+#else
+#define TRACE
+#endif
+
+#if DEBUG_SPAN
+#define TRACE_SPAN printf("--> %s\n", __FUNCTION__)
+#else
+#define TRACE_SPAN
+#endif
+
+
+/**
+ * Data types
+ */
+struct dri_context
+{
+ /* mesa, base class, must be first */
+ struct gl_context Base;
+
+ /* dri */
+ __DRIcontext *cPriv;
+};
+
+static INLINE struct dri_context *
+dri_context(__DRIcontext * driContextPriv)
+{
+ return (struct dri_context *)driContextPriv->driverPrivate;
+}
+
+static INLINE struct dri_context *
+swrast_context(struct gl_context *ctx)
+{
+ return (struct dri_context *) ctx;
+}
+
+struct dri_drawable
+{
+ /* mesa, base class, must be first */
+ struct gl_framebuffer Base;
+
+ /* dri */
+ __DRIdrawable *dPriv;
+
+ /* scratch row for optimized front-buffer rendering */
+ char *row;
+};
+
+static INLINE struct dri_drawable *
+dri_drawable(__DRIdrawable * driDrawPriv)
+{
+ return (struct dri_drawable *)driDrawPriv->driverPrivate;
+}
+
+static INLINE struct dri_drawable *
+swrast_drawable(struct gl_framebuffer *fb)
+{
+ return (struct dri_drawable *) fb;
+}
+
+struct swrast_renderbuffer {
+ struct gl_renderbuffer Base;
+
+ /* renderbuffer pitch (in bytes) */
+ GLuint pitch;
+ /* bits per pixel of storage */
+ GLuint bpp;
+};
+
+static INLINE struct swrast_renderbuffer *
+swrast_renderbuffer(struct gl_renderbuffer *rb)
+{
+ return (struct swrast_renderbuffer *) rb;
+}
+
+
+/**
+ * Pixel formats we support
+ */
+#define PF_A8R8G8B8 1 /**< 32bpp TrueColor: 8-A, 8-R, 8-G, 8-B bits */
+#define PF_R5G6B5 2 /**< 16bpp TrueColor: 5-R, 6-G, 5-B bits */
+#define PF_R3G3B2 3 /**< 8bpp TrueColor: 3-R, 3-G, 2-B bits */
+#define PF_X8R8G8B8 4 /**< 32bpp TrueColor: 8-R, 8-G, 8-B bits */
+
+
+/* swrast_span.c */
+
+extern void
+swrast_set_span_funcs_back(struct swrast_renderbuffer *xrb,
+ GLuint pixel_format);
+
+extern void
+swrast_set_span_funcs_front(struct swrast_renderbuffer *xrb,
+ GLuint pixel_format);
+
+#endif /* _SWRAST_PRIV_H_ */
diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h b/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h
index 1e9405eeb..0d2703ca5 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h
@@ -1,319 +1,319 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.1
- *
- * Copyright (C) 1999-2006 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.
- */
-
-
-/*
- * Modified version of swrast/s_spantemp.h for front-buffer rendering. The
- * no-mask paths use a scratch row to avoid repeated calls to the loader.
- *
- * For the mask paths we always use an array of 4 elements of RB_TYPE. This is
- * to satisfy the xorg loader requirement of an image pitch of 32 bits and
- * should be ok for other loaders also.
- */
-
-
-#ifndef _SWRAST_SPANTEMP_ONCE
-#define _SWRAST_SPANTEMP_ONCE
-
-static INLINE void
-PUT_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLvoid *p )
-{
- __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
- __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer)->dPriv;
-
- __DRIscreen *screen = ctx->driScreenPriv;
-
- screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW,
- x, y, 1, 1, (char *)p,
- draw->loaderPrivate);
-}
-
-
-static INLINE void
-GET_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
-{
- __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
- __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer)->dPriv;
-
- __DRIscreen *screen = ctx->driScreenPriv;
-
- screen->swrast_loader->getImage(read, x, y, 1, 1, (char *)p,
- read->loaderPrivate);
-}
-
-static INLINE void
-PUT_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
-{
- __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
- __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer)->dPriv;
-
- __DRIscreen *screen = ctx->driScreenPriv;
-
- screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW,
- x, y, n, 1, row,
- draw->loaderPrivate);
-}
-
-static INLINE void
-GET_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
-{
- __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
- __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer)->dPriv;
-
- __DRIscreen *screen = ctx->driScreenPriv;
-
- screen->swrast_loader->getImage(read, x, y, n, 1, row,
- read->loaderPrivate);
-}
-
-#endif /* _SWRAST_SPANTEMP_ONCE */
-
-
-/*
- * Templates for the span/pixel-array write/read functions called via
- * the gl_renderbuffer's GetRow, GetValues, PutRow, PutMonoRow, PutValues
- * and PutMonoValues functions.
- *
- * Define the following macros before including this file:
- * NAME(BASE) to generate the function name (i.e. add prefix or suffix)
- * RB_TYPE the renderbuffer DataType
- * SPAN_VARS to declare any local variables
- * INIT_PIXEL_PTR(P, X, Y) to initialize a pointer to a pixel
- * INC_PIXEL_PTR(P) to increment a pixel pointer by one pixel
- * STORE_PIXEL(DST, X, Y, VALUE) to store pixel values in buffer
- * FETCH_PIXEL(DST, SRC) to fetch pixel values from buffer
- *
- * Note that in the STORE_PIXEL macros, we also pass in the (X,Y) coordinates
- * for the pixels to be stored. This is useful when dithering and probably
- * ignored otherwise.
- */
-
-#include "main/macros.h"
-
-
-#if !defined(RB_COMPONENTS)
-#define RB_COMPONENTS 4
-#endif
-
-
-static void
-NAME(get_row)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, GLint x, GLint y, void *values )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values;
- GLuint i;
- char *row = swrast_drawable(ctx->ReadBuffer)->row;
- INIT_PIXEL_PTR(pixel, x, y);
- GET_ROW( ctx, x, YFLIP(xrb, y), count, row );
- for (i = 0; i < count; i++) {
- FETCH_PIXEL(dest[i], pixel);
- INC_PIXEL_PTR(pixel);
- }
- (void) rb;
-}
-
-
-static void
-NAME(get_values)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[], void *values )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values;
- GLuint i;
- for (i = 0; i < count; i++) {
- RB_TYPE pixel[4];
- GET_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
- FETCH_PIXEL(dest[i], pixel);
- }
- (void) rb;
-}
-
-
-static void
-NAME(put_row)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, GLint x, GLint y,
- const void *values, const GLubyte mask[] )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- const RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values;
- GLuint i;
- if (mask) {
- for (i = 0; i < count; i++) {
- if (mask[i]) {
- RB_TYPE row[4];
- INIT_PIXEL_PTR(pixel, x, y);
- STORE_PIXEL(pixel, x + i, y, src[i]);
- PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
- }
- }
- }
- else {
- char *row = swrast_drawable(ctx->DrawBuffer)->row;
- INIT_PIXEL_PTR(pixel, x, y);
- for (i = 0; i < count; i++) {
- STORE_PIXEL(pixel, x + i, y, src[i]);
- INC_PIXEL_PTR(pixel);
- }
- PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
- }
- (void) rb;
-}
-
-
-static void
-NAME(put_row_rgb)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, GLint x, GLint y,
- const void *values, const GLubyte mask[] )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- const RB_TYPE (*src)[3] = (const RB_TYPE (*)[3]) values;
- GLuint i;
- if (mask) {
- for (i = 0; i < count; i++) {
- if (mask[i]) {
- RB_TYPE row[4];
- INIT_PIXEL_PTR(pixel, x, y);
-#ifdef STORE_PIXEL_RGB
- STORE_PIXEL_RGB(pixel, x + i, y, src[i]);
-#else
- STORE_PIXEL(pixel, x + i, y, src[i]);
-#endif
- PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
- }
- }
- }
- else {
- char *row = swrast_drawable(ctx->DrawBuffer)->row;
- INIT_PIXEL_PTR(pixel, x, y);
- for (i = 0; i < count; i++) {
-#ifdef STORE_PIXEL_RGB
- STORE_PIXEL_RGB(pixel, x + i, y, src[i]);
-#else
- STORE_PIXEL(pixel, x + i, y, src[i]);
-#endif
- INC_PIXEL_PTR(pixel);
- }
- PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
- }
- (void) rb;
-}
-
-
-static void
-NAME(put_mono_row)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, GLint x, GLint y,
- const void *value, const GLubyte mask[] )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- const RB_TYPE *src = (const RB_TYPE *) value;
- GLuint i;
- if (mask) {
- for (i = 0; i < count; i++) {
- if (mask[i]) {
- RB_TYPE row[4];
- INIT_PIXEL_PTR(pixel, x, y);
- STORE_PIXEL(pixel, x + i, y, src);
- PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
- }
- }
- }
- else {
- char *row = swrast_drawable(ctx->DrawBuffer)->row;
- INIT_PIXEL_PTR(pixel, x, y);
- for (i = 0; i < count; i++) {
- STORE_PIXEL(pixel, x + i, y, src);
- INC_PIXEL_PTR(pixel);
- }
- PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
- }
- (void) rb;
-}
-
-
-static void
-NAME(put_values)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[],
- const void *values, const GLubyte mask[] )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- const RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values;
- GLuint i;
- ASSERT(mask);
- for (i = 0; i < count; i++) {
- if (mask[i]) {
- RB_TYPE row[4];
- INIT_PIXEL_PTR(pixel, x, y);
- STORE_PIXEL(pixel, x[i], y[i], src[i]);
- PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
- }
- }
- (void) rb;
-}
-
-
-static void
-NAME(put_mono_values)( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[],
- const void *value, const GLubyte mask[] )
-{
-#ifdef SPAN_VARS
- SPAN_VARS
-#endif
- const RB_TYPE *src = (const RB_TYPE *) value;
- GLuint i;
- ASSERT(mask);
- for (i = 0; i < count; i++) {
- if (mask[i]) {
- RB_TYPE row[4];
- INIT_PIXEL_PTR(pixel, x, y);
- STORE_PIXEL(pixel, x[i], y[i], src);
- PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
- }
- }
- (void) rb;
-}
-
-
-#undef NAME
-#undef RB_TYPE
-#undef RB_COMPONENTS
-#undef SPAN_VARS
-#undef INIT_PIXEL_PTR
-#undef INC_PIXEL_PTR
-#undef STORE_PIXEL
-#undef STORE_PIXEL_RGB
-#undef FETCH_PIXEL
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 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.
+ */
+
+
+/*
+ * Modified version of swrast/s_spantemp.h for front-buffer rendering. The
+ * no-mask paths use a scratch row to avoid repeated calls to the loader.
+ *
+ * For the mask paths we always use an array of 4 elements of RB_TYPE. This is
+ * to satisfy the xorg loader requirement of an image pitch of 32 bits and
+ * should be ok for other loaders also.
+ */
+
+
+#ifndef _SWRAST_SPANTEMP_ONCE
+#define _SWRAST_SPANTEMP_ONCE
+
+static INLINE void
+PUT_PIXEL( struct gl_context *glCtx, GLint x, GLint y, GLvoid *p )
+{
+ __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+ __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer)->dPriv;
+
+ __DRIscreen *screen = ctx->driScreenPriv;
+
+ screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW,
+ x, y, 1, 1, (char *)p,
+ draw->loaderPrivate);
+}
+
+
+static INLINE void
+GET_PIXEL( struct gl_context *glCtx, GLint x, GLint y, GLubyte *p )
+{
+ __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+ __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer)->dPriv;
+
+ __DRIscreen *screen = ctx->driScreenPriv;
+
+ screen->swrast_loader->getImage(read, x, y, 1, 1, (char *)p,
+ read->loaderPrivate);
+}
+
+static INLINE void
+PUT_ROW( struct gl_context *glCtx, GLint x, GLint y, GLuint n, char *row )
+{
+ __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+ __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer)->dPriv;
+
+ __DRIscreen *screen = ctx->driScreenPriv;
+
+ screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW,
+ x, y, n, 1, row,
+ draw->loaderPrivate);
+}
+
+static INLINE void
+GET_ROW( struct gl_context *glCtx, GLint x, GLint y, GLuint n, char *row )
+{
+ __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+ __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer)->dPriv;
+
+ __DRIscreen *screen = ctx->driScreenPriv;
+
+ screen->swrast_loader->getImage(read, x, y, n, 1, row,
+ read->loaderPrivate);
+}
+
+#endif /* _SWRAST_SPANTEMP_ONCE */
+
+
+/*
+ * Templates for the span/pixel-array write/read functions called via
+ * the gl_renderbuffer's GetRow, GetValues, PutRow, PutMonoRow, PutValues
+ * and PutMonoValues functions.
+ *
+ * Define the following macros before including this file:
+ * NAME(BASE) to generate the function name (i.e. add prefix or suffix)
+ * RB_TYPE the renderbuffer DataType
+ * SPAN_VARS to declare any local variables
+ * INIT_PIXEL_PTR(P, X, Y) to initialize a pointer to a pixel
+ * INC_PIXEL_PTR(P) to increment a pixel pointer by one pixel
+ * STORE_PIXEL(DST, X, Y, VALUE) to store pixel values in buffer
+ * FETCH_PIXEL(DST, SRC) to fetch pixel values from buffer
+ *
+ * Note that in the STORE_PIXEL macros, we also pass in the (X,Y) coordinates
+ * for the pixels to be stored. This is useful when dithering and probably
+ * ignored otherwise.
+ */
+
+#include "main/macros.h"
+
+
+#if !defined(RB_COMPONENTS)
+#define RB_COMPONENTS 4
+#endif
+
+
+static void
+NAME(get_row)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y, void *values )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values;
+ GLuint i;
+ char *row = swrast_drawable(ctx->ReadBuffer)->row;
+ INIT_PIXEL_PTR(pixel, x, y);
+ GET_ROW( ctx, x, YFLIP(xrb, y), count, row );
+ for (i = 0; i < count; i++) {
+ FETCH_PIXEL(dest[i], pixel);
+ INC_PIXEL_PTR(pixel);
+ }
+ (void) rb;
+}
+
+
+static void
+NAME(get_values)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[], void *values )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values;
+ GLuint i;
+ for (i = 0; i < count; i++) {
+ RB_TYPE pixel[4];
+ GET_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
+ FETCH_PIXEL(dest[i], pixel);
+ }
+ (void) rb;
+}
+
+
+static void
+NAME(put_row)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y,
+ const void *values, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ const RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values;
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ RB_TYPE row[4];
+ INIT_PIXEL_PTR(pixel, x, y);
+ STORE_PIXEL(pixel, x + i, y, src[i]);
+ PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
+ }
+ }
+ }
+ else {
+ char *row = swrast_drawable(ctx->DrawBuffer)->row;
+ INIT_PIXEL_PTR(pixel, x, y);
+ for (i = 0; i < count; i++) {
+ STORE_PIXEL(pixel, x + i, y, src[i]);
+ INC_PIXEL_PTR(pixel);
+ }
+ PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
+ }
+ (void) rb;
+}
+
+
+static void
+NAME(put_row_rgb)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y,
+ const void *values, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ const RB_TYPE (*src)[3] = (const RB_TYPE (*)[3]) values;
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ RB_TYPE row[4];
+ INIT_PIXEL_PTR(pixel, x, y);
+#ifdef STORE_PIXEL_RGB
+ STORE_PIXEL_RGB(pixel, x + i, y, src[i]);
+#else
+ STORE_PIXEL(pixel, x + i, y, src[i]);
+#endif
+ PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
+ }
+ }
+ }
+ else {
+ char *row = swrast_drawable(ctx->DrawBuffer)->row;
+ INIT_PIXEL_PTR(pixel, x, y);
+ for (i = 0; i < count; i++) {
+#ifdef STORE_PIXEL_RGB
+ STORE_PIXEL_RGB(pixel, x + i, y, src[i]);
+#else
+ STORE_PIXEL(pixel, x + i, y, src[i]);
+#endif
+ INC_PIXEL_PTR(pixel);
+ }
+ PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
+ }
+ (void) rb;
+}
+
+
+static void
+NAME(put_mono_row)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y,
+ const void *value, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ const RB_TYPE *src = (const RB_TYPE *) value;
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ RB_TYPE row[4];
+ INIT_PIXEL_PTR(pixel, x, y);
+ STORE_PIXEL(pixel, x + i, y, src);
+ PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
+ }
+ }
+ }
+ else {
+ char *row = swrast_drawable(ctx->DrawBuffer)->row;
+ INIT_PIXEL_PTR(pixel, x, y);
+ for (i = 0; i < count; i++) {
+ STORE_PIXEL(pixel, x + i, y, src);
+ INC_PIXEL_PTR(pixel);
+ }
+ PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
+ }
+ (void) rb;
+}
+
+
+static void
+NAME(put_values)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ const void *values, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ const RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values;
+ GLuint i;
+ ASSERT(mask);
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ RB_TYPE row[4];
+ INIT_PIXEL_PTR(pixel, x, y);
+ STORE_PIXEL(pixel, x[i], y[i], src[i]);
+ PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
+ }
+ }
+ (void) rb;
+}
+
+
+static void
+NAME(put_mono_values)( struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ const void *value, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+ SPAN_VARS
+#endif
+ const RB_TYPE *src = (const RB_TYPE *) value;
+ GLuint i;
+ ASSERT(mask);
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ RB_TYPE row[4];
+ INIT_PIXEL_PTR(pixel, x, y);
+ STORE_PIXEL(pixel, x[i], y[i], src);
+ PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
+ }
+ }
+ (void) rb;
+}
+
+
+#undef NAME
+#undef RB_TYPE
+#undef RB_COMPONENTS
+#undef SPAN_VARS
+#undef INIT_PIXEL_PTR
+#undef INC_PIXEL_PTR
+#undef STORE_PIXEL
+#undef STORE_PIXEL_RGB
+#undef FETCH_PIXEL
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 22:12:38 +0000