/************************************************************************** * * 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 "main/glheader.h" #include "main/context.h" #include "main/extensions.h" #include "main/fbobject.h" #include "main/framebuffer.h" #include "main/imports.h" #include "main/points.h" #include "main/renderbuffer.h" #include "swrast/swrast.h" #include "swrast_setup/swrast_setup.h" #include "tnl/tnl.h" #include "drivers/common/driverfuncs.h" #include "drivers/common/meta.h" #include "intel_chipset.h" #include "intel_buffers.h" #include "intel_tex.h" #include "intel_batchbuffer.h" #include "intel_clear.h" #include "intel_extensions.h" #include "intel_pixel.h" #include "intel_regions.h" #include "intel_buffer_objects.h" #include "intel_fbo.h" #include "intel_bufmgr.h" #include "intel_screen.h" #include "intel_mipmap_tree.h" #include "utils.h" #include "../glsl/ralloc.h" #ifndef INTEL_DEBUG int INTEL_DEBUG = (0); #endif static const GLubyte * intelGetString(struct gl_context * ctx, GLenum name) { const struct intel_context *const intel = intel_context(ctx); const char *chipset; static char buffer[128]; switch (name) { case GL_VENDOR: return (GLubyte *) "Intel Open Source Technology Center"; break; case GL_RENDERER: switch (intel->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_E7221_G: chipset = "Intel (R) E7221G (i915)"; 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; case PCI_CHIP_IGD_GM: case PCI_CHIP_IGD_G: chipset = "Intel(R) IGD"; break; case PCI_CHIP_I965_Q: chipset = "Intel(R) 965Q"; break; case PCI_CHIP_I965_G: case PCI_CHIP_I965_G_1: chipset = "Intel(R) 965G"; break; case PCI_CHIP_I946_GZ: chipset = "Intel(R) 946GZ"; break; case PCI_CHIP_I965_GM: chipset = "Intel(R) 965GM"; break; case PCI_CHIP_I965_GME: chipset = "Intel(R) 965GME/GLE"; break; case PCI_CHIP_GM45_GM: chipset = "Mobile Intel® GM45 Express Chipset"; break; case PCI_CHIP_IGD_E_G: chipset = "Intel(R) Integrated Graphics Device"; break; case PCI_CHIP_G45_G: chipset = "Intel(R) G45/G43"; break; case PCI_CHIP_Q45_G: chipset = "Intel(R) Q45/Q43"; break; case PCI_CHIP_G41_G: chipset = "Intel(R) G41"; break; case PCI_CHIP_B43_G: case PCI_CHIP_B43_G1: chipset = "Intel(R) B43"; break; case PCI_CHIP_ILD_G: chipset = "Intel(R) Ironlake Desktop"; break; case PCI_CHIP_ILM_G: chipset = "Intel(R) Ironlake Mobile"; break; case PCI_CHIP_SANDYBRIDGE_GT1: case PCI_CHIP_SANDYBRIDGE_GT2: case PCI_CHIP_SANDYBRIDGE_GT2_PLUS: chipset = "Intel(R) Sandybridge Desktop"; break; case PCI_CHIP_SANDYBRIDGE_M_GT1: case PCI_CHIP_SANDYBRIDGE_M_GT2: case PCI_CHIP_SANDYBRIDGE_M_GT2_PLUS: chipset = "Intel(R) Sandybridge Mobile"; break; case PCI_CHIP_SANDYBRIDGE_S: chipset = "Intel(R) Sandybridge Server"; break; case PCI_CHIP_IVYBRIDGE_GT1: case PCI_CHIP_IVYBRIDGE_GT2: chipset = "Intel(R) Ivybridge Desktop"; break; case PCI_CHIP_IVYBRIDGE_M_GT1: case PCI_CHIP_IVYBRIDGE_M_GT2: chipset = "Intel(R) Ivybridge Mobile"; break; case PCI_CHIP_IVYBRIDGE_S_GT1: case PCI_CHIP_IVYBRIDGE_S_GT2: chipset = "Intel(R) Ivybridge Server"; break; case PCI_CHIP_HASWELL_GT1: case PCI_CHIP_HASWELL_GT2: case PCI_CHIP_HASWELL_GT2_PLUS: case PCI_CHIP_HASWELL_SDV_GT1: case PCI_CHIP_HASWELL_SDV_GT2: case PCI_CHIP_HASWELL_SDV_GT2_PLUS: case PCI_CHIP_HASWELL_ULT_GT1: case PCI_CHIP_HASWELL_ULT_GT2: case PCI_CHIP_HASWELL_ULT_GT2_PLUS: case PCI_CHIP_HASWELL_CRW_GT1: case PCI_CHIP_HASWELL_CRW_GT2: case PCI_CHIP_HASWELL_CRW_GT2_PLUS: chipset = "Intel(R) Haswell Desktop"; break; case PCI_CHIP_HASWELL_M_GT1: case PCI_CHIP_HASWELL_M_GT2: case PCI_CHIP_HASWELL_M_GT2_PLUS: case PCI_CHIP_HASWELL_SDV_M_GT1: case PCI_CHIP_HASWELL_SDV_M_GT2: case PCI_CHIP_HASWELL_SDV_M_GT2_PLUS: case PCI_CHIP_HASWELL_ULT_M_GT1: case PCI_CHIP_HASWELL_ULT_M_GT2: case PCI_CHIP_HASWELL_ULT_M_GT2_PLUS: case PCI_CHIP_HASWELL_CRW_M_GT1: case PCI_CHIP_HASWELL_CRW_M_GT2: case PCI_CHIP_HASWELL_CRW_M_GT2_PLUS: chipset = "Intel(R) Haswell Mobile"; break; case PCI_CHIP_HASWELL_S_GT1: case PCI_CHIP_HASWELL_S_GT2: case PCI_CHIP_HASWELL_S_GT2_PLUS: case PCI_CHIP_HASWELL_SDV_S_GT1: case PCI_CHIP_HASWELL_SDV_S_GT2: case PCI_CHIP_HASWELL_SDV_S_GT2_PLUS: case PCI_CHIP_HASWELL_ULT_S_GT1: case PCI_CHIP_HASWELL_ULT_S_GT2: case PCI_CHIP_HASWELL_ULT_S_GT2_PLUS: case PCI_CHIP_HASWELL_CRW_S_GT1: case PCI_CHIP_HASWELL_CRW_S_GT2: case PCI_CHIP_HASWELL_CRW_S_GT2_PLUS: chipset = "Intel(R) Haswell Server"; break; default: chipset = "Unknown Intel Chipset"; break; } (void) driGetRendererString(buffer, chipset, 0); return (GLubyte *) buffer; default: return NULL; } } void intel_downsample_for_dri2_flush(struct intel_context *intel, __DRIdrawable *drawable) { if (intel->gen < 6) { /* MSAA is not supported, so don't waste time checking for * a multisample buffer. */ return; } struct gl_framebuffer *fb = drawable->driverPrivate; struct intel_renderbuffer *rb; /* Usually, only the back buffer will need to be downsampled. However, * the front buffer will also need it if the user has rendered into it. */ static const gl_buffer_index buffers[2] = { BUFFER_BACK_LEFT, BUFFER_FRONT_LEFT, }; for (int i = 0; i < 2; ++i) { rb = intel_get_renderbuffer(fb, buffers[i]); if (rb == NULL || rb->mt == NULL) continue; intel_miptree_downsample(intel, rb->mt); } } static void intel_flush_front(struct gl_context *ctx) { struct intel_context *intel = intel_context(ctx); __DRIcontext *driContext = intel->driContext; __DRIdrawable *driDrawable = driContext->driDrawablePriv; __DRIscreen *const screen = intel->intelScreen->driScrnPriv; if (_mesa_is_winsys_fbo(ctx->DrawBuffer) && intel->front_buffer_dirty) { if (screen->dri2.loader->flushFrontBuffer != NULL && driDrawable && driDrawable->loaderPrivate) { /* Downsample before flushing FAKE_FRONT_LEFT to FRONT_LEFT. * * This potentially downsamples both front and back buffer. It * is unnecessary to downsample the back, but harms nothing except * performance. And no one cares about front-buffer render * performance. */ intel_downsample_for_dri2_flush(intel, driDrawable); screen->dri2.loader->flushFrontBuffer(driDrawable, driDrawable->loaderPrivate); /* We set the dirty bit in intel_prepare_render() if we're * front buffer rendering once we get there. */ intel->front_buffer_dirty = false; } } } static unsigned intel_bits_per_pixel(const struct intel_renderbuffer *rb) { return _mesa_get_format_bytes(intel_rb_format(rb)) * 8; } static void intel_query_dri2_buffers(struct intel_context *intel, __DRIdrawable *drawable, __DRIbuffer **buffers, int *count); static void intel_process_dri2_buffer(struct intel_context *intel, __DRIdrawable *drawable, __DRIbuffer *buffer, struct intel_renderbuffer *rb, const char *buffer_name); void intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) { struct gl_framebuffer *fb = drawable->driverPrivate; struct intel_renderbuffer *rb; struct intel_context *intel = context->driverPrivate; __DRIbuffer *buffers = NULL; int i, count; const char *region_name; /* If we're rendering to the fake front buffer, make sure all the * pending drawing has landed on the real front buffer. Otherwise * when we eventually get to DRI2GetBuffersWithFormat the stale * real front buffer contents will get copied to the new fake front * buffer. */ if (intel->is_front_buffer_rendering) { intel_flush(&intel->ctx); intel_flush_front(&intel->ctx); } /* Set this up front, so that in case our buffers get invalidated * while we're getting new buffers, we don't clobber the stamp and * thus ignore the invalidate. */ drawable->lastStamp = drawable->dri2.stamp; if (unlikely(INTEL_DEBUG & DEBUG_DRI)) fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); intel_query_dri2_buffers(intel, drawable, &buffers, &count); if (buffers == NULL) return; for (i = 0; i < count; i++) { switch (buffers[i].attachment) { case __DRI_BUFFER_FRONT_LEFT: rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); region_name = "dri2 front buffer"; break; case __DRI_BUFFER_FAKE_FRONT_LEFT: rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); region_name = "dri2 fake front buffer"; break; case __DRI_BUFFER_BACK_LEFT: rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); region_name = "dri2 back buffer"; break; case __DRI_BUFFER_DEPTH: case __DRI_BUFFER_HIZ: case __DRI_BUFFER_DEPTH_STENCIL: case __DRI_BUFFER_STENCIL: case __DRI_BUFFER_ACCUM: default: fprintf(stderr, "unhandled buffer attach event, attachment type %d\n", buffers[i].attachment); return; } intel_process_dri2_buffer(intel, drawable, &buffers[i], rb, region_name); } driUpdateFramebufferSize(&intel->ctx, drawable); } /** * intel_prepare_render should be called anywhere that curent read/drawbuffer * state is required. */ void intel_prepare_render(struct intel_context *intel) { __DRIcontext *driContext = intel->driContext; __DRIdrawable *drawable; drawable = driContext->driDrawablePriv; if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) { if (drawable->lastStamp != drawable->dri2.stamp) intel_update_renderbuffers(driContext, drawable); intel_draw_buffer(&intel->ctx); driContext->dri2.draw_stamp = drawable->dri2.stamp; } drawable = driContext->driReadablePriv; if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) { if (drawable->lastStamp != drawable->dri2.stamp) intel_update_renderbuffers(driContext, drawable); driContext->dri2.read_stamp = drawable->dri2.stamp; } /* If we're currently rendering to the front buffer, the rendering * that will happen next will probably dirty the front buffer. So * mark it as dirty here. */ if (intel->is_front_buffer_rendering) intel->front_buffer_dirty = true; /* Wait for the swapbuffers before the one we just emitted, so we * don't get too many swaps outstanding for apps that are GPU-heavy * but not CPU-heavy. * * We're using intelDRI2Flush (called from the loader before * swapbuffer) and glFlush (for front buffer rendering) as the * indicator that a frame is done and then throttle when we get * here as we prepare to render the next frame. At this point for * round trips for swap/copy and getting new buffers are done and * we'll spend less time waiting on the GPU. * * Unfortunately, we don't have a handle to the batch containing * the swap, and getting our hands on that doesn't seem worth it, * so we just us the first batch we emitted after the last swap. */ if (intel->need_throttle && intel->first_post_swapbuffers_batch) { if (!intel->disable_throttling) drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch); drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); intel->first_post_swapbuffers_batch = NULL; intel->need_throttle = false; } } static void intel_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h) { struct intel_context *intel = intel_context(ctx); __DRIcontext *driContext = intel->driContext; if (intel->saved_viewport) intel->saved_viewport(ctx, x, y, w, h); if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { dri2InvalidateDrawable(driContext->driDrawablePriv); dri2InvalidateDrawable(driContext->driReadablePriv); } } static const struct dri_debug_control debug_control[] = { { "tex", DEBUG_TEXTURE}, { "state", DEBUG_STATE}, { "ioctl", DEBUG_IOCTL}, { "blit", DEBUG_BLIT}, { "mip", DEBUG_MIPTREE}, { "fall", DEBUG_PERF}, { "perf", DEBUG_PERF}, { "bat", DEBUG_BATCH}, { "pix", DEBUG_PIXEL}, { "buf", DEBUG_BUFMGR}, { "reg", DEBUG_REGION}, { "fbo", DEBUG_FBO}, { "fs", DEBUG_WM }, { "gs", DEBUG_GS}, { "sync", DEBUG_SYNC}, { "prim", DEBUG_PRIMS }, { "vert", DEBUG_VERTS }, { "dri", DEBUG_DRI }, { "sf", DEBUG_SF }, { "stats", DEBUG_STATS }, { "wm", DEBUG_WM }, { "urb", DEBUG_URB }, { "vs", DEBUG_VS }, { "clip", DEBUG_CLIP }, { "aub", DEBUG_AUB }, { "shader_time", DEBUG_SHADER_TIME }, { "no16", DEBUG_NO16 }, { "blorp", DEBUG_BLORP }, { NULL, 0 } }; static void intelInvalidateState(struct gl_context * ctx, GLuint new_state) { struct intel_context *intel = intel_context(ctx); if (ctx->swrast_context) _swrast_InvalidateState(ctx, new_state); _vbo_InvalidateState(ctx, new_state); intel->NewGLState |= new_state; if (intel->vtbl.invalidate_state) intel->vtbl.invalidate_state( intel, new_state ); } void intel_flush_rendering_to_batch(struct gl_context *ctx) { struct intel_context *intel = intel_context(ctx); if (intel->Fallback) _swrast_flush(ctx); if (intel->gen < 4) INTEL_FIREVERTICES(intel); } void _intel_flush(struct gl_context *ctx, const char *file, int line) { struct intel_context *intel = intel_context(ctx); intel_flush_rendering_to_batch(ctx); if (intel->batch.used) _intel_batchbuffer_flush(intel, file, line); } static void intel_glFlush(struct gl_context *ctx) { struct intel_context *intel = intel_context(ctx); intel_flush(ctx); intel_flush_front(ctx); if (intel->is_front_buffer_rendering) intel->need_throttle = true; } void intelFinish(struct gl_context * ctx) { struct intel_context *intel = intel_context(ctx); intel_flush(ctx); intel_flush_front(ctx); if (intel->batch.last_bo) drm_intel_bo_wait_rendering(intel->batch.last_bo); } void intelInitDriverFunctions(struct dd_function_table *functions) { _mesa_init_driver_functions(functions); functions->Flush = intel_glFlush; functions->Finish = intelFinish; functions->GetString = intelGetString; functions->UpdateState = intelInvalidateState; intelInitTextureFuncs(functions); intelInitTextureImageFuncs(functions); intelInitTextureSubImageFuncs(functions); intelInitTextureCopyImageFuncs(functions); intelInitClearFuncs(functions); intelInitBufferFuncs(functions); intelInitPixelFuncs(functions); intelInitBufferObjectFuncs(functions); intel_init_syncobj_functions(functions); } static bool validate_context_version(struct intel_screen *screen, int mesa_api, unsigned major_version, unsigned minor_version, unsigned *dri_ctx_error) { unsigned req_version = 10 * major_version + minor_version; unsigned max_version = 0; switch (mesa_api) { case API_OPENGL_COMPAT: max_version = screen->max_gl_compat_version; break; case API_OPENGL_CORE: max_version = screen->max_gl_core_version; break; case API_OPENGLES: max_version = screen->max_gl_es1_version; break; case API_OPENGLES2: max_version = screen->max_gl_es2_version; break; default: max_version = 0; break; } if (max_version == 0) { *dri_ctx_error = __DRI_CTX_ERROR_BAD_API; return false; } else if (req_version > max_version) { *dri_ctx_error = __DRI_CTX_ERROR_BAD_VERSION; return false; } return true; } bool intelInitContext(struct intel_context *intel, int api, unsigned major_version, unsigned minor_version, const struct gl_config * mesaVis, __DRIcontext * driContextPriv, void *sharedContextPrivate, struct dd_function_table *functions, unsigned *dri_ctx_error) { struct gl_context *ctx = &intel->ctx; struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate; __DRIscreen *sPriv = driContextPriv->driScreenPriv; struct intel_screen *intelScreen = sPriv->driverPrivate; int bo_reuse_mode; struct gl_config visual; /* we can't do anything without a connection to the device */ if (intelScreen->bufmgr == NULL) { *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY; return false; } if (!validate_context_version(intelScreen, api, major_version, minor_version, dri_ctx_error)) return false; /* Can't rely on invalidate events, fall back to glViewport hack */ if (!driContextPriv->driScreenPriv->dri2.useInvalidate) { intel->saved_viewport = functions->Viewport; functions->Viewport = intel_viewport; } if (mesaVis == NULL) { memset(&visual, 0, sizeof visual); mesaVis = &visual; } intel->intelScreen = intelScreen; if (!_mesa_initialize_context(&intel->ctx, api, mesaVis, shareCtx, functions)) { *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY; printf("%s: failed to init mesa context\n", __FUNCTION__); return false; } driContextPriv->driverPrivate = intel; intel->driContext = driContextPriv; intel->driFd = sPriv->fd; intel->gen = intelScreen->gen; const int devID = intelScreen->deviceID; if (IS_SNB_GT1(devID) || IS_IVB_GT1(devID) || IS_HSW_GT1(devID)) intel->gt = 1; else if (IS_SNB_GT2(devID) || IS_IVB_GT2(devID) || IS_HSW_GT2(devID)) intel->gt = 2; else intel->gt = 0; if (IS_HASWELL(devID)) { intel->is_haswell = true; } else if (IS_G4X(devID)) { intel->is_g4x = true; } else if (IS_945(devID)) { intel->is_945 = true; } if (intel->gen >= 5) { intel->needs_ff_sync = true; } intel->has_separate_stencil = intel->intelScreen->hw_has_separate_stencil; intel->must_use_separate_stencil = intel->intelScreen->hw_must_use_separate_stencil; intel->has_hiz = intel->gen >= 6 && !intel->is_haswell; intel->has_llc = intel->intelScreen->hw_has_llc; intel->has_swizzling = intel->intelScreen->hw_has_swizzling; memset(&ctx->TextureFormatSupported, 0, sizeof(ctx->TextureFormatSupported)); driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache, sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915"); if (intel->gen < 4) intel->maxBatchSize = 4096; else intel->maxBatchSize = BATCH_SZ; intel->bufmgr = intelScreen->bufmgr; bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse"); switch (bo_reuse_mode) { case DRI_CONF_BO_REUSE_DISABLED: break; case DRI_CONF_BO_REUSE_ALL: intel_bufmgr_gem_enable_reuse(intel->bufmgr); break; } ctx->Const.MinLineWidth = 1.0; ctx->Const.MinLineWidthAA = 1.0; ctx->Const.MaxLineWidth = 5.0; ctx->Const.MaxLineWidthAA = 5.0; ctx->Const.LineWidthGranularity = 0.5; 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; if (intel->gen >= 6) ctx->Const.MaxClipPlanes = 8; ctx->Const.StripTextureBorder = GL_TRUE; /* reinitialize the context point state. * It depend on constants in __struct gl_contextRec::Const */ _mesa_init_point(ctx); if (intel->gen >= 4) { ctx->Const.MaxRenderbufferSize = 8192; } else { ctx->Const.MaxRenderbufferSize = 2048; } /* Initialize the software rasterizer and helper modules. * * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for * software fallbacks (which we have to support on legacy GL to do weird * glDrawPixels(), glBitmap(), and other functions). */ if (intel->gen <= 3 || api != API_OPENGL_CORE) { _swrast_CreateContext(ctx); } _vbo_CreateContext(ctx); if (ctx->swrast_context) { _tnl_CreateContext(ctx); _swsetup_CreateContext(ctx); /* Configure swrast to match hardware characteristics: */ _swrast_allow_pixel_fog(ctx, false); _swrast_allow_vertex_fog(ctx, true); } _mesa_meta_init(ctx); intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; intel->hw_stipple = 1; /* XXX FBO: this doesn't seem to be used anywhere */ switch (mesaVis->depthBits) { case 0: /* what to do in this case? */ case 16: intel->polygon_offset_scale = 1.0; break; case 24: intel->polygon_offset_scale = 2.0; /* req'd to pass glean */ break; default: assert(0); break; } if (intel->gen >= 4) intel->polygon_offset_scale /= 0xffff; intel->RenderIndex = ~0; intelInitExtensions(ctx); INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control); if (INTEL_DEBUG & DEBUG_BUFMGR) dri_bufmgr_set_debug(intel->bufmgr, true); if ((INTEL_DEBUG & DEBUG_SHADER_TIME) && intel->gen < 7) { fprintf(stderr, "shader_time debugging requires gen7 (Ivybridge) or better.\n"); INTEL_DEBUG &= ~DEBUG_SHADER_TIME; } if (INTEL_DEBUG & DEBUG_PERF) intel->perf_debug = true; if (INTEL_DEBUG & DEBUG_AUB) drm_intel_bufmgr_gem_set_aub_dump(intel->bufmgr, true); intel_batchbuffer_init(intel); intel_fbo_init(intel); intel->use_texture_tiling = driQueryOptionb(&intel->optionCache, "texture_tiling"); intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z"); if (!driQueryOptionb(&intel->optionCache, "hiz")) { intel->has_hiz = false; /* On gen6, you can only do separate stencil with HIZ. */ if (intel->gen == 6) intel->has_separate_stencil = false; } intel->prim.primitive = ~0; /* Force all software fallbacks */ #ifdef I915 if (driQueryOptionb(&intel->optionCache, "no_rast")) { fprintf(stderr, "disabling 3D rasterization\n"); intel->no_rast = 1; } #endif if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) { fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); intel->always_flush_batch = 1; } if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) { fprintf(stderr, "flushing GPU caches before/after each draw call\n"); intel->always_flush_cache = 1; } if (driQueryOptionb(&intel->optionCache, "disable_throttling")) { fprintf(stderr, "disabling flush throttling\n"); intel->disable_throttling = 1; } return true; } void intelDestroyContext(__DRIcontext * driContextPriv) { struct intel_context *intel = (struct intel_context *) driContextPriv->driverPrivate; struct gl_context *ctx = &intel->ctx; assert(intel); /* should never be null */ if (intel) { INTEL_FIREVERTICES(intel); /* Dump a final BMP in case the application doesn't call SwapBuffers */ if (INTEL_DEBUG & DEBUG_AUB) { intel_batchbuffer_flush(intel); aub_dump_bmp(&intel->ctx); } _mesa_meta_free(&intel->ctx); intel->vtbl.destroy(intel); if (ctx->swrast_context) { _swsetup_DestroyContext(&intel->ctx); _tnl_DestroyContext(&intel->ctx); } _vbo_DestroyContext(&intel->ctx); if (ctx->swrast_context) _swrast_DestroyContext(&intel->ctx); intel->Fallback = 0x0; /* don't call _swrast_Flush later */ intel_batchbuffer_free(intel); free(intel->prim.vb); intel->prim.vb = NULL; drm_intel_bo_unreference(intel->prim.vb_bo); intel->prim.vb_bo = NULL; drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); intel->first_post_swapbuffers_batch = NULL; driDestroyOptionCache(&intel->optionCache); /* free the Mesa context */ _mesa_free_context_data(&intel->ctx); _math_matrix_dtr(&intel->ViewportMatrix); ralloc_free(intel); driContextPriv->driverPrivate = NULL; } } GLboolean intelUnbindContext(__DRIcontext * driContextPriv) { /* Unset current context and dispath table */ _mesa_make_current(NULL, NULL, NULL); return true; } /** * Fixes up the context for GLES23 with our default-to-sRGB-capable behavior * on window system framebuffers. * * Desktop GL is fairly reasonable in its handling of sRGB: You can ask if * your renderbuffer can do sRGB encode, and you can flip a switch that does * sRGB encode if the renderbuffer can handle it. You can ask specifically * for a visual where you're guaranteed to be capable, but it turns out that * everyone just makes all their ARGB8888 visuals capable and doesn't offer * incapable ones, becuase there's no difference between the two in resources * used. Applications thus get built that accidentally rely on the default * visual choice being sRGB, so we make ours sRGB capable. Everything sounds * great... * * But for GLES2/3, they decided that it was silly to not turn on sRGB encode * for sRGB renderbuffers you made with the GL_EXT_texture_sRGB equivalent. * So they removed the enable knob and made it "if the renderbuffer is sRGB * capable, do sRGB encode". Then, for your window system renderbuffers, you * can ask for sRGB visuals and get sRGB encode, or not ask for sRGB visuals * and get no sRGB encode (assuming that both kinds of visual are available). * Thus our choice to support sRGB by default on our visuals for desktop would * result in broken rendering of GLES apps that aren't expecting sRGB encode. * * Unfortunately, renderbuffer setup happens before a context is created. So * in intel_screen.c we always set up sRGB, and here, if you're a GLES2/3 * context (without an sRGB visual, though we don't have sRGB visuals exposed * yet), we go turn that back off before anyone finds out. */ static void intel_gles3_srgb_workaround(struct intel_context *intel, struct gl_framebuffer *fb) { struct gl_context *ctx = &intel->ctx; if (_mesa_is_desktop_gl(ctx) || !fb->Visual.sRGBCapable) return; /* Some day when we support the sRGB capable bit on visuals available for * GLES, we'll need to respect that and not disable things here. */ fb->Visual.sRGBCapable = false; for (int i = 0; i < BUFFER_COUNT; i++) { if (fb->Attachment[i].Renderbuffer && fb->Attachment[i].Renderbuffer->Format == MESA_FORMAT_SARGB8) { fb->Attachment[i].Renderbuffer->Format = MESA_FORMAT_ARGB8888; } } } GLboolean intelMakeCurrent(__DRIcontext * driContextPriv, __DRIdrawable * driDrawPriv, __DRIdrawable * driReadPriv) { struct intel_context *intel; GET_CURRENT_CONTEXT(curCtx); if (driContextPriv) intel = (struct intel_context *) driContextPriv->driverPrivate; else intel = NULL; /* According to the glXMakeCurrent() man page: "Pending commands to * the previous context, if any, are flushed before it is released." * But only flush if we're actually changing contexts. */ if (intel_context(curCtx) && intel_context(curCtx) != intel) { _mesa_flush(curCtx); } if (driContextPriv) { struct gl_context *ctx = &intel->ctx; struct gl_framebuffer *fb, *readFb; if (driDrawPriv == NULL && driReadPriv == NULL) { fb = _mesa_get_incomplete_framebuffer(); readFb = _mesa_get_incomplete_framebuffer(); } else { fb = driDrawPriv->driverPrivate; readFb = driReadPriv->driverPrivate; driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; } intel_prepare_render(intel); _mesa_make_current(ctx, fb, readFb); intel_gles3_srgb_workaround(intel, ctx->WinSysDrawBuffer); intel_gles3_srgb_workaround(intel, ctx->WinSysReadBuffer); /* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer * is NULL at that point. We can't call _mesa_makecurrent() * first, since we need the buffer size for the initial * viewport. So just call intel_draw_buffer() again here. */ intel_draw_buffer(ctx); } else { _mesa_make_current(NULL, NULL, NULL); } return true; } /** * \brief Query DRI2 to obtain a DRIdrawable's buffers. * * To determine which DRI buffers to request, examine the renderbuffers * attached to the drawable's framebuffer. Then request the buffers with * DRI2GetBuffers() or DRI2GetBuffersWithFormat(). * * This is called from intel_update_renderbuffers(). * * \param drawable Drawable whose buffers are queried. * \param buffers [out] List of buffers returned by DRI2 query. * \param buffer_count [out] Number of buffers returned. * * \see intel_update_renderbuffers() * \see DRI2GetBuffers() * \see DRI2GetBuffersWithFormat() */ static void intel_query_dri2_buffers(struct intel_context *intel, __DRIdrawable *drawable, __DRIbuffer **buffers, int *buffer_count) { __DRIscreen *screen = intel->intelScreen->driScrnPriv; struct gl_framebuffer *fb = drawable->driverPrivate; int i = 0; unsigned attachments[8]; const int max_attachments = ARRAY_SIZE(attachments) / 2; struct intel_renderbuffer *front_rb; struct intel_renderbuffer *back_rb; front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); memset(attachments, 0, sizeof(attachments)); if ((intel->is_front_buffer_rendering || intel->is_front_buffer_reading || !back_rb) && front_rb) { attachments[i++] = __DRI_BUFFER_FRONT_LEFT; attachments[i++] = intel_bits_per_pixel(front_rb); } if (back_rb) { attachments[i++] = __DRI_BUFFER_BACK_LEFT; attachments[i++] = intel_bits_per_pixel(back_rb); } assert(i <= 2 * max_attachments); *buffers = screen->dri2.loader->getBuffersWithFormat(drawable, &drawable->w, &drawable->h, attachments, i / 2, buffer_count, drawable->loaderPrivate); } /** * \brief Assign a DRI buffer's DRM region to a renderbuffer. * * This is called from intel_update_renderbuffers(). * * \par Note: * DRI buffers whose attachment point is DRI2BufferStencil or * DRI2BufferDepthStencil are handled as special cases. * * \param buffer_name is a human readable name, such as "dri2 front buffer", * that is passed to intel_region_alloc_for_handle(). * * \see intel_update_renderbuffers() * \see intel_region_alloc_for_handle() */ static void intel_process_dri2_buffer(struct intel_context *intel, __DRIdrawable *drawable, __DRIbuffer *buffer, struct intel_renderbuffer *rb, const char *buffer_name) { struct intel_region *region = NULL; if (!rb) return; unsigned num_samples = rb->Base.Base.NumSamples; /* We try to avoid closing and reopening the same BO name, because the first * use of a mapping of the buffer involves a bunch of page faulting which is * moderately expensive. */ if (num_samples == 0) { if (rb->mt && rb->mt->region && rb->mt->region->name == buffer->name) return; } else { if (rb->mt && rb->mt->singlesample_mt && rb->mt->singlesample_mt->region && rb->mt->singlesample_mt->region->name == buffer->name) return; } if (unlikely(INTEL_DEBUG & DEBUG_DRI)) { fprintf(stderr, "attaching buffer %d, at %d, cpp %d, pitch %d\n", buffer->name, buffer->attachment, buffer->cpp, buffer->pitch); } intel_miptree_release(&rb->mt); region = intel_region_alloc_for_handle(intel->intelScreen, buffer->cpp, drawable->w, drawable->h, buffer->pitch, buffer->name, buffer_name); if (!region) return; rb->mt = intel_miptree_create_for_dri2_buffer(intel, buffer->attachment, intel_rb_format(rb), num_samples, region); intel_region_release(®ion); }