/************************************************************************** * * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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. * **************************************************************************/ #include "glheader.h" #include "context.h" #include "matrix.h" #include "simple_list.h" #include "extensions.h" #include "framebuffer.h" #include "imports.h" #include "points.h" #include "swrast/swrast.h" #include "swrast_setup/swrast_setup.h" #include "tnl/tnl.h" #include "vbo/vbo.h" #include "tnl/t_pipeline.h" #include "tnl/t_vertex.h" #include "drivers/common/driverfuncs.h" #include "intel_screen.h" #include "i830_dri.h" #include "i830_common.h" #include "intel_tex.h" #include "intel_span.h" #include "intel_tris.h" #include "intel_ioctl.h" #include "intel_batchbuffer.h" #include "vblank.h" #include "utils.h" #include "xmlpool.h" /* for symbolic values of enum-type options */ #ifndef INTEL_DEBUG int INTEL_DEBUG = (0); #endif #define need_GL_ARB_multisample #define need_GL_ARB_point_parameters #define need_GL_ARB_texture_compression #define need_GL_ARB_vertex_buffer_object #define need_GL_ARB_vertex_program #define need_GL_ARB_window_pos #define need_GL_EXT_blend_color #define need_GL_EXT_blend_equation_separate #define need_GL_EXT_blend_func_separate #define need_GL_EXT_blend_minmax #define need_GL_EXT_cull_vertex #define need_GL_EXT_fog_coord #define need_GL_EXT_multi_draw_arrays #define need_GL_EXT_secondary_color #define need_GL_NV_vertex_program #include "extension_helper.h" #ifndef VERBOSE int VERBOSE = 0; #endif #if DEBUG_LOCKING char *prevLockFile; int prevLockLine; #endif /*************************************** * Mesa's Driver Functions ***************************************/ #define DRIVER_DATE "20061017" const GLubyte *intelGetString( GLcontext *ctx, GLenum name ) { const char * chipset; static char buffer[128]; switch (name) { case GL_VENDOR: return (GLubyte *)"Tungsten Graphics, Inc"; break; case GL_RENDERER: switch (INTEL_CONTEXT(ctx)->intelScreen->deviceID) { case PCI_CHIP_845_G: chipset = "Intel(R) 845G"; break; case PCI_CHIP_I830_M: chipset = "Intel(R) 830M"; break; case PCI_CHIP_I855_GM: chipset = "Intel(R) 852GM/855GM"; break; case PCI_CHIP_I865_G: chipset = "Intel(R) 865G"; break; case PCI_CHIP_I915_G: chipset = "Intel(R) 915G"; break; case PCI_CHIP_I915_GM: chipset = "Intel(R) 915GM"; break; case PCI_CHIP_I945_G: chipset = "Intel(R) 945G"; break; case PCI_CHIP_I945_GM: chipset = "Intel(R) 945GM"; break; case PCI_CHIP_I945_GME: chipset = "Intel(R) 945GME"; break; case PCI_CHIP_G33_G: chipset = "Intel(R) G33"; break; case PCI_CHIP_Q35_G: chipset = "Intel(R) Q35"; break; case PCI_CHIP_Q33_G: chipset = "Intel(R) Q33"; break; default: chipset = "Unknown Intel Chipset"; break; } (void) driGetRendererString( buffer, chipset, DRIVER_DATE, 0 ); return (GLubyte *) buffer; default: return NULL; } } /** * Extension strings exported by the intel driver. * * \note * It appears that ARB_texture_env_crossbar has "disappeared" compared to the * old i830-specific driver. */ const struct dri_extension card_extensions[] = { { "GL_ARB_multisample", GL_ARB_multisample_functions }, { "GL_ARB_multitexture", NULL }, { "GL_ARB_point_parameters", GL_ARB_point_parameters_functions }, { "GL_ARB_texture_border_clamp", NULL }, { "GL_ARB_texture_compression", GL_ARB_texture_compression_functions }, { "GL_ARB_texture_cube_map", NULL }, { "GL_ARB_texture_env_add", NULL }, { "GL_ARB_texture_env_combine", NULL }, { "GL_ARB_texture_env_dot3", NULL }, { "GL_ARB_texture_mirrored_repeat", NULL }, { "GL_ARB_texture_rectangle", NULL }, { "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions }, { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions }, { "GL_ARB_window_pos", GL_ARB_window_pos_functions }, { "GL_EXT_blend_color", GL_EXT_blend_color_functions }, { "GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions }, { "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions }, { "GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions }, { "GL_EXT_blend_subtract", NULL }, { "GL_EXT_cull_vertex", GL_EXT_cull_vertex_functions }, { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions }, { "GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions }, { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions }, { "GL_EXT_stencil_wrap", NULL }, { "GL_EXT_texture_edge_clamp", NULL }, { "GL_EXT_texture_env_combine", NULL }, { "GL_EXT_texture_env_dot3", NULL }, { "GL_EXT_texture_filter_anisotropic", NULL }, { "GL_EXT_texture_lod_bias", NULL }, { "GL_3DFX_texture_compression_FXT1", NULL }, { "GL_APPLE_client_storage", NULL }, { "GL_MESA_pack_invert", NULL }, { "GL_MESA_ycbcr_texture", NULL }, { "GL_NV_blend_square", NULL }, { "GL_NV_vertex_program", GL_NV_vertex_program_functions }, { "GL_NV_vertex_program1_1", NULL }, { "GL_SGIS_generate_mipmap", NULL }, { NULL, NULL } }; extern const struct tnl_pipeline_stage _intel_render_stage; static const struct tnl_pipeline_stage *intel_pipeline[] = { &_tnl_vertex_transform_stage, &_tnl_vertex_cull_stage, &_tnl_normal_transform_stage, &_tnl_lighting_stage, &_tnl_fog_coordinate_stage, &_tnl_texgen_stage, &_tnl_texture_transform_stage, &_tnl_point_attenuation_stage, &_tnl_vertex_program_stage, #if 1 &_intel_render_stage, /* ADD: unclipped rastersetup-to-dma */ #endif &_tnl_render_stage, 0, }; static const struct dri_debug_control debug_control[] = { { "fall", DEBUG_FALLBACKS }, { "tex", DEBUG_TEXTURE }, { "ioctl", DEBUG_IOCTL }, { "prim", DEBUG_PRIMS }, { "vert", DEBUG_VERTS }, { "state", DEBUG_STATE }, { "verb", DEBUG_VERBOSE }, { "dri", DEBUG_DRI }, { "dma", DEBUG_DMA }, { "san", DEBUG_SANITY }, { "sync", DEBUG_SYNC }, { "sleep", DEBUG_SLEEP }, { "pix", DEBUG_PIXEL }, { NULL, 0 } }; static void intelInvalidateState( GLcontext *ctx, GLuint new_state ) { _swrast_InvalidateState( ctx, new_state ); _swsetup_InvalidateState( ctx, new_state ); _vbo_InvalidateState( ctx, new_state ); _tnl_InvalidateState( ctx, new_state ); _tnl_invalidate_vertex_state( ctx, new_state ); INTEL_CONTEXT(ctx)->NewGLState |= new_state; } void intelInitDriverFunctions( struct dd_function_table *functions ) { _mesa_init_driver_functions( functions ); functions->Clear = intelClear; functions->Flush = intelglFlush; functions->Finish = intelFinish; functions->GetString = intelGetString; functions->UpdateState = intelInvalidateState; intelInitTextureFuncs( functions ); intelInitPixelFuncs( functions ); intelInitStateFuncs( functions ); } static void intel_emit_invarient_state( GLcontext *ctx ) { } GLboolean intelInitContext( intelContextPtr intel, const __GLcontextModes *mesaVis, __DRIcontextPrivate *driContextPriv, void *sharedContextPrivate, struct dd_function_table *functions ) { GLcontext *ctx = &intel->ctx; GLcontext *shareCtx = (GLcontext *) sharedContextPrivate; __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private; drmI830Sarea *saPriv = (drmI830Sarea *) (((GLubyte *)sPriv->pSAREA)+intelScreen->sarea_priv_offset); int fthrottle_mode; if (!_mesa_initialize_context(&intel->ctx, mesaVis, shareCtx, functions, (void*) intel)) return GL_FALSE; driContextPriv->driverPrivate = intel; intel->intelScreen = intelScreen; intel->driScreen = sPriv; intel->sarea = saPriv; (void) memset( intel->texture_heaps, 0, sizeof( intel->texture_heaps ) ); make_empty_list( & intel->swapped ); driParseConfigFiles (&intel->optionCache, &intelScreen->optionCache, intel->driScreen->myNum, "i915"); ctx->Const.MaxTextureMaxAnisotropy = 2.0; ctx->Const.MinLineWidth = 1.0; ctx->Const.MinLineWidthAA = 1.0; ctx->Const.MaxLineWidth = 3.0; ctx->Const.MaxLineWidthAA = 3.0; ctx->Const.LineWidthGranularity = 1.0; ctx->Const.MinPointSize = 1.0; ctx->Const.MinPointSizeAA = 1.0; ctx->Const.MaxPointSize = 255.0; ctx->Const.MaxPointSizeAA = 3.0; ctx->Const.PointSizeGranularity = 1.0; /* reinitialize the context point state. * It depend on constants in __GLcontextRec::Const */ _mesa_init_point(ctx); /* Initialize the software rasterizer and helper modules. */ _swrast_CreateContext( ctx ); _vbo_CreateContext( ctx ); _tnl_CreateContext( ctx ); _swsetup_CreateContext( ctx ); /* Install the customized pipeline: */ _tnl_destroy_pipeline( ctx ); _tnl_install_pipeline( ctx, intel_pipeline ); /* Configure swrast to match hardware characteristics: */ _swrast_allow_pixel_fog( ctx, GL_FALSE ); _swrast_allow_vertex_fog( ctx, GL_TRUE ); /* Dri stuff */ intel->hHWContext = driContextPriv->hHWContext; intel->driFd = sPriv->fd; intel->driHwLock = (drmLock *) &sPriv->pSAREA->lock; intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; intel->hw_stipple = 1; switch(mesaVis->depthBits) { case 0: /* what to do in this case? */ case 16: intel->depth_scale = 1.0/0xffff; intel->polygon_offset_scale = 1.0/0xffff; intel->depth_clear_mask = ~0; intel->ClearDepth = 0xffff; break; case 24: intel->depth_scale = 1.0/0xffffff; intel->polygon_offset_scale = 2.0/0xffffff; /* req'd to pass glean */ intel->depth_clear_mask = 0x00ffffff; intel->stencil_clear_mask = 0xff000000; intel->ClearDepth = 0x00ffffff; break; default: assert(0); break; } /* Initialize swrast, tnl driver tables: */ intelInitSpanFuncs( ctx ); intelInitTriFuncs( ctx ); intel->RenderIndex = ~0; fthrottle_mode = driQueryOptioni(&intel->optionCache, "fthrottle_mode"); intel->iw.irq_seq = -1; intel->irqsEmitted = 0; intel->do_irqs = (intel->intelScreen->irq_active && fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS); intel->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS); intel->vblank_flags = (intel->intelScreen->irq_active != 0) ? driGetDefaultVBlankFlags(&intel->optionCache) : VBLANK_FLAG_NO_IRQ; (*dri_interface->getUST)(&intel->swap_ust); _math_matrix_ctr (&intel->ViewportMatrix); driInitExtensions( ctx, card_extensions, GL_TRUE ); if (intel->ctx.Mesa_DXTn) { _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" ); _mesa_enable_extension( ctx, "GL_S3_s3tc" ); } else if (driQueryOptionb (&intel->optionCache, "force_s3tc_enable")) { _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" ); } /* driInitTextureObjects( ctx, & intel->swapped, */ /* DRI_TEXMGR_DO_TEXTURE_1D | */ /* DRI_TEXMGR_DO_TEXTURE_2D | */ /* DRI_TEXMGR_DO_TEXTURE_RECT ); */ intelInitBatchBuffer(&intel->ctx); intel->prim.flush = intel_emit_invarient_state; intel->prim.primitive = ~0; #if DO_DEBUG INTEL_DEBUG = driParseDebugString( getenv( "INTEL_DEBUG" ), debug_control ); INTEL_DEBUG |= driParseDebugString( getenv( "INTEL_DEBUG" ), debug_control ); #endif #ifndef VERBOSE if (getenv("INTEL_VERBOSE")) VERBOSE=1; #endif if (getenv("INTEL_NO_RAST") || getenv("INTEL_NO_RAST")) { fprintf(stderr, "disabling 3D rasterization\n"); FALLBACK(intel, INTEL_FALLBACK_USER, 1); } return GL_TRUE; } void intelDestroyContext(__DRIcontextPrivate *driContextPriv) { intelContextPtr intel = (intelContextPtr) driContextPriv->driverPrivate; assert(intel); /* should never be null */ if (intel) { GLboolean release_texture_heaps; INTEL_FIREVERTICES( intel ); intel->vtbl.destroy( intel ); release_texture_heaps = (intel->ctx.Shared->RefCount == 1); _swsetup_DestroyContext (&intel->ctx); _tnl_DestroyContext (&intel->ctx); _vbo_DestroyContext (&intel->ctx); _swrast_DestroyContext (&intel->ctx); intel->Fallback = 0; /* don't call _swrast_Flush later */ intelDestroyBatchBuffer(&intel->ctx); if ( release_texture_heaps ) { /* This share group is about to go away, free our private * texture object data. */ int i; for ( i = 0 ; i < intel->nr_heaps ; i++ ) { driDestroyTextureHeap( intel->texture_heaps[ i ] ); intel->texture_heaps[ i ] = NULL; } assert( is_empty_list( & intel->swapped ) ); } /* free the Mesa context */ _mesa_destroy_context(&intel->ctx); } } void intelSetFrontClipRects( intelContextPtr intel ) { __DRIdrawablePrivate *dPriv = intel->driDrawable; if (!dPriv) return; intel->numClipRects = dPriv->numClipRects; intel->pClipRects = dPriv->pClipRects; intel->drawX = dPriv->x; intel->drawY = dPriv->y; } void intelSetBackClipRects( intelContextPtr intel ) { __DRIdrawablePrivate *dPriv = intel->driDrawable; if (!dPriv) return; if (intel->sarea->pf_enabled == 0 && dPriv->numBackClipRects == 0) { intel->numClipRects = dPriv->numClipRects; intel->pClipRects = dPriv->pClipRects; intel->drawX = dPriv->x; intel->drawY = dPriv->y; } else { intel->numClipRects = dPriv->numBackClipRects; intel->pClipRects = dPriv->pBackClipRects; intel->drawX = dPriv->backX; intel->drawY = dPriv->backY; if (dPriv->numBackClipRects == 1 && dPriv->x == dPriv->backX && dPriv->y == dPriv->backY) { /* Repeat the calculation of the back cliprect dimensions here * as early versions of dri.a in the Xserver are incorrect. Try * very hard not to restrict future versions of dri.a which * might eg. allocate truly private back buffers. */ int x1, y1; int x2, y2; x1 = dPriv->x; y1 = dPriv->y; x2 = dPriv->x + dPriv->w; y2 = dPriv->y + dPriv->h; if (x1 < 0) x1 = 0; if (y1 < 0) y1 = 0; if (x2 > intel->intelScreen->width) x2 = intel->intelScreen->width; if (y2 > intel->intelScreen->height) y2 = intel->intelScreen->height; if (x1 == dPriv->pBackClipRects[0].x1 && y1 == dPriv->pBackClipRects[0].y1) { dPriv->pBackClipRects[0].x2 = x2; dPriv->pBackClipRects[0].y2 = y2; } } } } void intelWindowMoved( intelContextPtr intel ) { __DRIdrawablePrivate *dPriv = intel->driDrawable; GLframebuffer *drawFb = (GLframebuffer *) dPriv->driverPrivate; if (!intel->ctx.DrawBuffer) { intelSetFrontClipRects( intel ); } else { driUpdateFramebufferSize(&intel->ctx, dPriv); switch (drawFb->_ColorDrawBufferMask[0]) { case BUFFER_BIT_FRONT_LEFT: intelSetFrontClipRects( intel ); break; case BUFFER_BIT_BACK_LEFT: intelSetBackClipRects( intel ); break; default: /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */ intelSetFrontClipRects( intel ); } } if (drawFb->Width != dPriv->w || drawFb->Height != dPriv->h) { /* update Mesa's notion of framebuffer/window size */ _mesa_resize_framebuffer(&intel->ctx, drawFb, dPriv->w, dPriv->h); drawFb->Initialized = GL_TRUE; /* XXX remove someday */ } /* Set state we know depends on drawable parameters: */ { GLcontext *ctx = &intel->ctx; if (intel->intelScreen->driScrnPriv->ddxMinor >= 7) { drmI830Sarea *sarea = intel->sarea; drm_clip_rect_t drw_rect = { .x1 = dPriv->x, .x2 = dPriv->x + dPriv->w, .y1 = dPriv->y, .y2 = dPriv->y + dPriv->h }; drm_clip_rect_t pipeA_rect = { .x1 = sarea->pipeA_x, .x2 = sarea->pipeA_x + sarea->pipeA_w, .y1 = sarea->pipeA_y, .y2 = sarea->pipeA_y + sarea->pipeA_h }; drm_clip_rect_t pipeB_rect = { .x1 = sarea->pipeB_x, .x2 = sarea->pipeB_x + sarea->pipeB_w, .y1 = sarea->pipeB_y, .y2 = sarea->pipeB_y + sarea->pipeB_h }; GLint areaA = driIntersectArea( drw_rect, pipeA_rect ); GLint areaB = driIntersectArea( drw_rect, pipeB_rect ); GLuint flags = intel->vblank_flags; if (areaB > areaA || (areaA == areaB && areaB > 0)) { flags = intel->vblank_flags | VBLANK_FLAG_SECONDARY; } else { flags = intel->vblank_flags & ~VBLANK_FLAG_SECONDARY; } if (flags != intel->vblank_flags) { intel->vblank_flags = flags; driGetCurrentVBlank(dPriv, intel->vblank_flags, &intel->vbl_seq); } } else { intel->vblank_flags &= ~VBLANK_FLAG_SECONDARY; } ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y, ctx->Scissor.Width, ctx->Scissor.Height ); ctx->Driver.DepthRange( ctx, ctx->Viewport.Near, ctx->Viewport.Far ); } } GLboolean intelUnbindContext(__DRIcontextPrivate *driContextPriv) { return GL_TRUE; } GLboolean intelMakeCurrent(__DRIcontextPrivate *driContextPriv, __DRIdrawablePrivate *driDrawPriv, __DRIdrawablePrivate *driReadPriv) { if (driContextPriv) { intelContextPtr intel = (intelContextPtr) driContextPriv->driverPrivate; if ( intel->driDrawable != driDrawPriv ) { /* Shouldn't the readbuffer be stored also? */ driDrawableInitVBlank( driDrawPriv, intel->vblank_flags, &intel->vbl_seq ); intel->driDrawable = driDrawPriv; intelWindowMoved( intel ); } _mesa_make_current(&intel->ctx, (GLframebuffer *) driDrawPriv->driverPrivate, (GLframebuffer *) driReadPriv->driverPrivate); intel->ctx.Driver.DrawBuffer( &intel->ctx, intel->ctx.Color.DrawBuffer[0] ); } else { _mesa_make_current(NULL, NULL, NULL); } return GL_TRUE; } /** * Use the information in the sarea to update the screen parameters * related to screen rotation. */ static void intelUpdateScreenRotation(intelContextPtr intel, __DRIscreenPrivate *sPriv, drmI830Sarea *sarea) { intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private; intelRegion *colorBuf; intelUnmapScreenRegions(intelScreen); intelUpdateScreenFromSAREA(intelScreen, sarea); /* update the current hw offsets for the color and depth buffers */ if (intel->ctx.DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) colorBuf = &intelScreen->back; else colorBuf = &intelScreen->front; intel->vtbl.update_color_z_regions(intel, colorBuf, &intelScreen->depth); if (!intelMapScreenRegions(sPriv)) { fprintf(stderr, "ERROR Remapping screen regions!!!\n"); } } void intelGetLock( intelContextPtr intel, GLuint flags ) { __DRIdrawablePrivate *dPriv = intel->driDrawable; __DRIscreenPrivate *sPriv = intel->driScreen; intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private; drmI830Sarea * sarea = intel->sarea; unsigned i; drmGetLock(intel->driFd, intel->hHWContext, flags); /* If the window moved, may need to set a new cliprect now. * * NOTE: This releases and regains the hw lock, so all state * checking must be done *after* this call: */ if (dPriv) DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv); if (dPriv && intel->lastStamp != dPriv->lastStamp) { intelWindowMoved( intel ); intel->lastStamp = dPriv->lastStamp; } /* If we lost context, need to dump all registers to hardware. * Note that we don't care about 2d contexts, even if they perform * accelerated commands, so the DRI locking in the X server is even * more broken than usual. */ if (sarea->width != intelScreen->width || sarea->height != intelScreen->height || sarea->rotation != intelScreen->current_rotation) { intelUpdateScreenRotation(intel, sPriv, sarea); /* This will drop the outstanding batchbuffer on the floor */ intel->batch.ptr -= (intel->batch.size - intel->batch.space); intel->batch.space = intel->batch.size; /* lose all primitives */ intel->prim.primitive = ~0; intel->prim.start_ptr = 0; intel->prim.flush = 0; intel->vtbl.lost_hardware( intel ); intel->lastStamp = 0; /* force window update */ /* Release batch buffer */ intelDestroyBatchBuffer(&intel->ctx); intelInitBatchBuffer(&intel->ctx); intel->prim.flush = intel_emit_invarient_state; /* Still need to reset the global LRU? */ intel_driReinitTextureHeap( intel->texture_heaps[0], intel->intelScreen->tex.size ); } /* Shared texture managment - if another client has played with * texture space, figure out which if any of our textures have been * ejected, and update our global LRU. */ for ( i = 0 ; i < intel->nr_heaps ; i++ ) { DRI_AGE_TEXTURES( intel->texture_heaps[ i ] ); } } void intelSwapBuffers( __DRIdrawablePrivate *dPriv ) { if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { intelContextPtr intel; GLcontext *ctx; intel = (intelContextPtr) dPriv->driContextPriv->driverPrivate; ctx = &intel->ctx; if (ctx->Visual.doubleBufferMode) { intelScreenPrivate *screen = intel->intelScreen; _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ if ( 0 /*intel->doPageFlip*/ ) { /* doPageFlip is never set !!! */ intelPageFlip( dPriv ); } else { intelCopyBuffer( dPriv, NULL ); } if (screen->current_rotation != 0) { intelRotateWindow(intel, dPriv, BUFFER_BIT_FRONT_LEFT); } } } else { /* XXX this shouldn't be an error but we can't handle it for now */ fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__); } } void intelCopySubBuffer( __DRIdrawablePrivate *dPriv, int x, int y, int w, int h ) { if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { intelContextPtr intel; GLcontext *ctx; intel = (intelContextPtr) dPriv->driContextPriv->driverPrivate; ctx = &intel->ctx; if (ctx->Visual.doubleBufferMode) { drm_clip_rect_t rect; rect.x1 = x + dPriv->x; rect.y1 = (dPriv->h - y - h) + dPriv->y; rect.x2 = rect.x1 + w; rect.y2 = rect.y1 + h; _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ intelCopyBuffer( dPriv, &rect ); } } else { /* XXX this shouldn't be an error but we can't handle it for now */ fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__); } }