| 0,0 → 1,1545 |
|---|
| /* |
| Copyright 2003 VMware, Inc. |
| Copyright (C) Intel Corp. 2006. All Rights Reserved. |
| Intel funded Tungsten Graphics to |
| develop this 3D driver. |
| |
| 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 (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 NONINFRINGEMENT. |
| IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. |
| |
| **********************************************************************/ |
| /* |
| * Authors: |
| * Keith Whitwell <keithw@vmware.com> |
| */ |
| |
| |
| #include "main/api_exec.h" |
| #include "main/context.h" |
| #include "main/fbobject.h" |
| #include "main/extensions.h" |
| #include "main/imports.h" |
| #include "main/macros.h" |
| #include "main/points.h" |
| #include "main/version.h" |
| #include "main/vtxfmt.h" |
| #include "main/texobj.h" |
| |
| #include "vbo/vbo_context.h" |
| |
| #include "drivers/common/driverfuncs.h" |
| #include "drivers/common/meta.h" |
| #include "utils.h" |
| |
| #include "brw_context.h" |
| #include "brw_defines.h" |
| #include "brw_draw.h" |
| #include "brw_state.h" |
| |
| #include "intel_batchbuffer.h" |
| #include "intel_buffer_objects.h" |
| #include "intel_buffers.h" |
| #include "intel_fbo.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_pixel.h" |
| #include "intel_image.h" |
| #include "intel_tex.h" |
| #include "intel_tex_obj.h" |
| |
| #include "swrast_setup/swrast_setup.h" |
| #include "tnl/tnl.h" |
| #include "tnl/t_pipeline.h" |
| #include "util/ralloc.h" |
| |
| #include "glsl/nir/nir.h" |
| |
| /*************************************** |
| * Mesa's Driver Functions |
| ***************************************/ |
| |
| static size_t |
| brw_query_samples_for_format(struct gl_context *ctx, GLenum target, |
| GLenum internalFormat, int samples[16]) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| |
| (void) target; |
| |
| switch (brw->gen) { |
| case 9: |
| case 8: |
| samples[0] = 8; |
| samples[1] = 4; |
| samples[2] = 2; |
| return 3; |
| |
| case 7: |
| samples[0] = 8; |
| samples[1] = 4; |
| return 2; |
| |
| case 6: |
| samples[0] = 4; |
| return 1; |
| |
| default: |
| assert(brw->gen < 6); |
| samples[0] = 1; |
| return 1; |
| } |
| } |
| |
| const char *const brw_vendor_string = "Intel Open Source Technology Center"; |
| |
| const char * |
| brw_get_renderer_string(unsigned deviceID) |
| { |
| const char *chipset; |
| static char buffer[128]; |
| |
| switch (deviceID) { |
| #undef CHIPSET |
| #define CHIPSET(id, symbol, str) case id: chipset = str; break; |
| #include "pci_ids/i965_pci_ids.h" |
| default: |
| chipset = "Unknown Intel Chipset"; |
| break; |
| } |
| |
| (void) driGetRendererString(buffer, chipset, 0); |
| return buffer; |
| } |
| |
| static const GLubyte * |
| intel_get_string(struct gl_context * ctx, GLenum name) |
| { |
| const struct brw_context *const brw = brw_context(ctx); |
| |
| switch (name) { |
| case GL_VENDOR: |
| return (GLubyte *) brw_vendor_string; |
| |
| case GL_RENDERER: |
| return |
| (GLubyte *) brw_get_renderer_string(brw->intelScreen->deviceID); |
| |
| default: |
| return NULL; |
| } |
| } |
| |
| static void |
| intel_viewport(struct gl_context *ctx) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| __DRIcontext *driContext = brw->driContext; |
| |
| if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { |
| dri2InvalidateDrawable(driContext->driDrawablePriv); |
| dri2InvalidateDrawable(driContext->driReadablePriv); |
| } |
| } |
| |
| static void |
| intel_update_state(struct gl_context * ctx, GLuint new_state) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct intel_texture_object *tex_obj; |
| struct intel_renderbuffer *depth_irb; |
| |
| if (ctx->swrast_context) |
| _swrast_InvalidateState(ctx, new_state); |
| _vbo_InvalidateState(ctx, new_state); |
| |
| brw->NewGLState |= new_state; |
| |
| _mesa_unlock_context_textures(ctx); |
| |
| /* Resolve the depth buffer's HiZ buffer. */ |
| depth_irb = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_DEPTH); |
| if (depth_irb) |
| intel_renderbuffer_resolve_hiz(brw, depth_irb); |
| |
| /* Resolve depth buffer and render cache of each enabled texture. */ |
| int maxEnabledUnit = ctx->Texture._MaxEnabledTexImageUnit; |
| for (int i = 0; i <= maxEnabledUnit; i++) { |
| if (!ctx->Texture.Unit[i]._Current) |
| continue; |
| tex_obj = intel_texture_object(ctx->Texture.Unit[i]._Current); |
| if (!tex_obj || !tex_obj->mt) |
| continue; |
| intel_miptree_all_slices_resolve_depth(brw, tex_obj->mt); |
| intel_miptree_resolve_color(brw, tex_obj->mt); |
| brw_render_cache_set_check_flush(brw, tex_obj->mt->bo); |
| } |
| |
| _mesa_lock_context_textures(ctx); |
| } |
| |
| #define flushFront(screen) ((screen)->image.loader ? (screen)->image.loader->flushFrontBuffer : (screen)->dri2.loader->flushFrontBuffer) |
| |
| static void |
| intel_flush_front(struct gl_context *ctx) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| __DRIcontext *driContext = brw->driContext; |
| __DRIdrawable *driDrawable = driContext->driDrawablePriv; |
| __DRIscreen *const screen = brw->intelScreen->driScrnPriv; |
| |
| if (brw->front_buffer_dirty && _mesa_is_winsys_fbo(ctx->DrawBuffer)) { |
| if (flushFront(screen) && driDrawable && |
| driDrawable->loaderPrivate) { |
| |
| /* Resolve before flushing FAKE_FRONT_LEFT to FRONT_LEFT. |
| * |
| * This potentially resolves both front and back buffer. It |
| * is unnecessary to resolve the back, but harms nothing except |
| * performance. And no one cares about front-buffer render |
| * performance. |
| */ |
| intel_resolve_for_dri2_flush(brw, driDrawable); |
| intel_batchbuffer_flush(brw); |
| |
| flushFront(screen)(driDrawable, driDrawable->loaderPrivate); |
| |
| /* We set the dirty bit in intel_prepare_render() if we're |
| * front buffer rendering once we get there. |
| */ |
| brw->front_buffer_dirty = false; |
| } |
| } |
| } |
| |
| static void |
| intel_glFlush(struct gl_context *ctx) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| |
| intel_batchbuffer_flush(brw); |
| intel_flush_front(ctx); |
| |
| brw->need_flush_throttle = true; |
| } |
| |
| static void |
| intel_finish(struct gl_context * ctx) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| |
| intel_glFlush(ctx); |
| |
| if (brw->batch.last_bo) |
| drm_intel_bo_wait_rendering(brw->batch.last_bo); |
| } |
| |
| static void |
| brw_init_driver_functions(struct brw_context *brw, |
| struct dd_function_table *functions) |
| { |
| _mesa_init_driver_functions(functions); |
| |
| /* GLX uses DRI2 invalidate events to handle window resizing. |
| * Unfortunately, EGL does not - libEGL is written in XCB (not Xlib), |
| * which doesn't provide a mechanism for snooping the event queues. |
| * |
| * So EGL still relies on viewport hacks to handle window resizing. |
| * This should go away with DRI3000. |
| */ |
| if (!brw->driContext->driScreenPriv->dri2.useInvalidate) |
| functions->Viewport = intel_viewport; |
| |
| functions->Flush = intel_glFlush; |
| functions->Finish = intel_finish; |
| functions->GetString = intel_get_string; |
| functions->UpdateState = intel_update_state; |
| |
| intelInitTextureFuncs(functions); |
| intelInitTextureImageFuncs(functions); |
| intelInitTextureSubImageFuncs(functions); |
| intelInitTextureCopyImageFuncs(functions); |
| intelInitCopyImageFuncs(functions); |
| intelInitClearFuncs(functions); |
| intelInitBufferFuncs(functions); |
| intelInitPixelFuncs(functions); |
| intelInitBufferObjectFuncs(functions); |
| intel_init_syncobj_functions(functions); |
| brw_init_object_purgeable_functions(functions); |
| |
| brwInitFragProgFuncs( functions ); |
| brw_init_common_queryobj_functions(functions); |
| if (brw->gen >= 6) |
| gen6_init_queryobj_functions(functions); |
| else |
| gen4_init_queryobj_functions(functions); |
| brw_init_compute_functions(functions); |
| if (brw->gen >= 7) |
| brw_init_conditional_render_functions(functions); |
| |
| functions->QuerySamplesForFormat = brw_query_samples_for_format; |
| |
| functions->NewTransformFeedback = brw_new_transform_feedback; |
| functions->DeleteTransformFeedback = brw_delete_transform_feedback; |
| functions->GetTransformFeedbackVertexCount = |
| brw_get_transform_feedback_vertex_count; |
| if (brw->gen >= 7) { |
| functions->BeginTransformFeedback = gen7_begin_transform_feedback; |
| functions->EndTransformFeedback = gen7_end_transform_feedback; |
| functions->PauseTransformFeedback = gen7_pause_transform_feedback; |
| functions->ResumeTransformFeedback = gen7_resume_transform_feedback; |
| } else { |
| functions->BeginTransformFeedback = brw_begin_transform_feedback; |
| functions->EndTransformFeedback = brw_end_transform_feedback; |
| } |
| |
| if (brw->gen >= 6) |
| functions->GetSamplePosition = gen6_get_sample_position; |
| } |
| |
| static void |
| brw_initialize_context_constants(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| |
| unsigned max_samplers = |
| brw->gen >= 8 || brw->is_haswell ? BRW_MAX_TEX_UNIT : 16; |
| |
| ctx->Const.QueryCounterBits.Timestamp = 36; |
| |
| ctx->Const.StripTextureBorder = true; |
| |
| ctx->Const.MaxDualSourceDrawBuffers = 1; |
| ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = max_samplers; |
| ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */ |
| ctx->Const.MaxTextureUnits = |
| MIN2(ctx->Const.MaxTextureCoordUnits, |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits); |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = max_samplers; |
| if (brw->gen >= 6) |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits = max_samplers; |
| else |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits = 0; |
| if (_mesa_extension_override_enables.ARB_compute_shader) { |
| ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = BRW_MAX_TEX_UNIT; |
| ctx->Const.MaxUniformBufferBindings += 12; |
| } else { |
| ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = 0; |
| } |
| ctx->Const.MaxCombinedTextureImageUnits = |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits + |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits + |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits + |
| ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits; |
| |
| ctx->Const.MaxTextureLevels = 14; /* 8192 */ |
| if (ctx->Const.MaxTextureLevels > MAX_TEXTURE_LEVELS) |
| ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS; |
| ctx->Const.Max3DTextureLevels = 12; /* 2048 */ |
| ctx->Const.MaxCubeTextureLevels = 14; /* 8192 */ |
| ctx->Const.MaxTextureMbytes = 1536; |
| |
| if (brw->gen >= 7) |
| ctx->Const.MaxArrayTextureLayers = 2048; |
| else |
| ctx->Const.MaxArrayTextureLayers = 512; |
| |
| ctx->Const.MaxTextureRectSize = 1 << 12; |
| |
| ctx->Const.MaxTextureMaxAnisotropy = 16.0; |
| |
| ctx->Const.MaxRenderbufferSize = 8192; |
| |
| /* Hardware only supports a limited number of transform feedback buffers. |
| * So we need to override the Mesa default (which is based only on software |
| * limits). |
| */ |
| ctx->Const.MaxTransformFeedbackBuffers = BRW_MAX_SOL_BUFFERS; |
| |
| /* On Gen6, in the worst case, we use up one binding table entry per |
| * transform feedback component (see comments above the definition of |
| * BRW_MAX_SOL_BINDINGS, in brw_context.h), so we need to advertise a value |
| * for MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS equal to |
| * BRW_MAX_SOL_BINDINGS. |
| * |
| * In "separate components" mode, we need to divide this value by |
| * BRW_MAX_SOL_BUFFERS, so that the total number of binding table entries |
| * used up by all buffers will not exceed BRW_MAX_SOL_BINDINGS. |
| */ |
| ctx->Const.MaxTransformFeedbackInterleavedComponents = BRW_MAX_SOL_BINDINGS; |
| ctx->Const.MaxTransformFeedbackSeparateComponents = |
| BRW_MAX_SOL_BINDINGS / BRW_MAX_SOL_BUFFERS; |
| |
| ctx->Const.AlwaysUseGetTransformFeedbackVertexCount = true; |
| |
| int max_samples; |
| const int *msaa_modes = intel_supported_msaa_modes(brw->intelScreen); |
| const int clamp_max_samples = |
| driQueryOptioni(&brw->optionCache, "clamp_max_samples"); |
| |
| if (clamp_max_samples < 0) { |
| max_samples = msaa_modes[0]; |
| } else { |
| /* Select the largest supported MSAA mode that does not exceed |
| * clamp_max_samples. |
| */ |
| max_samples = 0; |
| for (int i = 0; msaa_modes[i] != 0; ++i) { |
| if (msaa_modes[i] <= clamp_max_samples) { |
| max_samples = msaa_modes[i]; |
| break; |
| } |
| } |
| } |
| |
| ctx->Const.MaxSamples = max_samples; |
| ctx->Const.MaxColorTextureSamples = max_samples; |
| ctx->Const.MaxDepthTextureSamples = max_samples; |
| ctx->Const.MaxIntegerSamples = max_samples; |
| |
| /* gen6_set_sample_maps() sets SampleMap{2,4,8}x variables which are used |
| * to map indices of rectangular grid to sample numbers within a pixel. |
| * These variables are used by GL_EXT_framebuffer_multisample_blit_scaled |
| * extension implementation. For more details see the comment above |
| * gen6_set_sample_maps() definition. |
| */ |
| gen6_set_sample_maps(ctx); |
| |
| if (brw->gen >= 7) |
| ctx->Const.MaxProgramTextureGatherComponents = 4; |
| else if (brw->gen == 6) |
| ctx->Const.MaxProgramTextureGatherComponents = 1; |
| |
| ctx->Const.MinLineWidth = 1.0; |
| ctx->Const.MinLineWidthAA = 1.0; |
| if (brw->gen >= 9 || brw->is_cherryview) { |
| ctx->Const.MaxLineWidth = 40.0; |
| ctx->Const.MaxLineWidthAA = 40.0; |
| ctx->Const.LineWidthGranularity = 0.125; |
| } else if (brw->gen >= 6) { |
| ctx->Const.MaxLineWidth = 7.375; |
| ctx->Const.MaxLineWidthAA = 7.375; |
| ctx->Const.LineWidthGranularity = 0.125; |
| } else { |
| ctx->Const.MaxLineWidth = 7.0; |
| ctx->Const.MaxLineWidthAA = 7.0; |
| ctx->Const.LineWidthGranularity = 0.5; |
| } |
| |
| ctx->Const.MinPointSize = 1.0; |
| ctx->Const.MinPointSizeAA = 1.0; |
| ctx->Const.MaxPointSize = 255.0; |
| ctx->Const.MaxPointSizeAA = 255.0; |
| ctx->Const.PointSizeGranularity = 1.0; |
| |
| if (brw->gen >= 5 || brw->is_g4x) |
| ctx->Const.MaxClipPlanes = 8; |
| |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeInstructions = 16 * 1024; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxAluInstructions = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxTexInstructions = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxTexIndirections = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAluInstructions = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTexInstructions = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTexIndirections = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAttribs = 16; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTemps = 256; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAddressRegs = 1; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeParameters = 1024; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxEnvParams = |
| MIN2(ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeParameters, |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxEnvParams); |
| |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeInstructions = 1024; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeAluInstructions = 1024; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeTexInstructions = 1024; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeTexIndirections = 1024; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeAttribs = 12; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeTemps = 256; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeAddressRegs = 0; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeParameters = 1024; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxEnvParams = |
| MIN2(ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxNativeParameters, |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxEnvParams); |
| |
| /* Fragment shaders use real, 32-bit twos-complement integers for all |
| * integer types. |
| */ |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].LowInt.RangeMin = 31; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].LowInt.RangeMax = 30; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].LowInt.Precision = 0; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].HighInt = ctx->Const.Program[MESA_SHADER_FRAGMENT].LowInt; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MediumInt = ctx->Const.Program[MESA_SHADER_FRAGMENT].LowInt; |
| |
| ctx->Const.Program[MESA_SHADER_VERTEX].LowInt.RangeMin = 31; |
| ctx->Const.Program[MESA_SHADER_VERTEX].LowInt.RangeMax = 30; |
| ctx->Const.Program[MESA_SHADER_VERTEX].LowInt.Precision = 0; |
| ctx->Const.Program[MESA_SHADER_VERTEX].HighInt = ctx->Const.Program[MESA_SHADER_VERTEX].LowInt; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MediumInt = ctx->Const.Program[MESA_SHADER_VERTEX].LowInt; |
| |
| if (brw->gen >= 7) { |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters = MAX_ATOMIC_COUNTERS; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxAtomicCounters = MAX_ATOMIC_COUNTERS; |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxAtomicCounters = MAX_ATOMIC_COUNTERS; |
| ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicCounters = MAX_ATOMIC_COUNTERS; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers = BRW_MAX_ABO; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxAtomicBuffers = BRW_MAX_ABO; |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers = BRW_MAX_ABO; |
| ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers = BRW_MAX_ABO; |
| ctx->Const.MaxCombinedAtomicBuffers = 3 * BRW_MAX_ABO; |
| } |
| |
| /* Gen6 converts quads to polygon in beginning of 3D pipeline, |
| * but we're not sure how it's actually done for vertex order, |
| * that affect provoking vertex decision. Always use last vertex |
| * convention for quad primitive which works as expected for now. |
| */ |
| if (brw->gen >= 6) |
| ctx->Const.QuadsFollowProvokingVertexConvention = false; |
| |
| ctx->Const.NativeIntegers = true; |
| ctx->Const.VertexID_is_zero_based = true; |
| |
| /* Regarding the CMP instruction, the Ivybridge PRM says: |
| * |
| * "For each enabled channel 0b or 1b is assigned to the appropriate flag |
| * bit and 0/all zeros or all ones (e.g, byte 0xFF, word 0xFFFF, DWord |
| * 0xFFFFFFFF) is assigned to dst." |
| * |
| * but PRMs for earlier generations say |
| * |
| * "In dword format, one GRF may store up to 8 results. When the register |
| * is used later as a vector of Booleans, as only LSB at each channel |
| * contains meaning [sic] data, software should make sure all higher bits |
| * are masked out (e.g. by 'and-ing' an [sic] 0x01 constant)." |
| * |
| * We select the representation of a true boolean uniform to be ~0, and fix |
| * the results of Gen <= 5 CMP instruction's with -(result & 1). |
| */ |
| ctx->Const.UniformBooleanTrue = ~0; |
| |
| /* From the gen4 PRM, volume 4 page 127: |
| * |
| * "For SURFTYPE_BUFFER non-rendertarget surfaces, this field specifies |
| * the base address of the first element of the surface, computed in |
| * software by adding the surface base address to the byte offset of |
| * the element in the buffer." |
| * |
| * However, unaligned accesses are slower, so enforce buffer alignment. |
| */ |
| ctx->Const.UniformBufferOffsetAlignment = 16; |
| ctx->Const.TextureBufferOffsetAlignment = 16; |
| |
| if (brw->gen >= 6) { |
| ctx->Const.MaxVarying = 32; |
| ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 128; |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxInputComponents = 64; |
| ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents = 128; |
| ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents = 128; |
| } |
| |
| static const nir_shader_compiler_options nir_options = { |
| .native_integers = true, |
| /* In order to help allow for better CSE at the NIR level we tell NIR |
| * to split all ffma instructions during opt_algebraic and we then |
| * re-combine them as a later step. |
| */ |
| .lower_ffma = true, |
| .lower_sub = true, |
| }; |
| |
| /* We want the GLSL compiler to emit code that uses condition codes */ |
| for (int i = 0; i < MESA_SHADER_STAGES; i++) { |
| ctx->Const.ShaderCompilerOptions[i].MaxIfDepth = brw->gen < 6 ? 16 : UINT_MAX; |
| ctx->Const.ShaderCompilerOptions[i].EmitCondCodes = true; |
| ctx->Const.ShaderCompilerOptions[i].EmitNoNoise = true; |
| ctx->Const.ShaderCompilerOptions[i].EmitNoMainReturn = true; |
| ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectInput = true; |
| ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectOutput = |
| (i == MESA_SHADER_FRAGMENT); |
| ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectTemp = |
| (i == MESA_SHADER_FRAGMENT); |
| ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectUniform = false; |
| ctx->Const.ShaderCompilerOptions[i].LowerClipDistance = true; |
| } |
| |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = true; |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_GEOMETRY].OptimizeForAOS = true; |
| |
| if (brw->scalar_vs) { |
| /* If we're using the scalar backend for vertex shaders, we need to |
| * configure these accordingly. |
| */ |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoIndirectOutput = true; |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoIndirectTemp = true; |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = false; |
| |
| if (brw_env_var_as_boolean("INTEL_USE_NIR", true)) |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].NirOptions = &nir_options; |
| } |
| |
| if (brw_env_var_as_boolean("INTEL_USE_NIR", true)) |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_FRAGMENT].NirOptions = &nir_options; |
| |
| ctx->Const.ShaderCompilerOptions[MESA_SHADER_COMPUTE].NirOptions = &nir_options; |
| |
| /* ARB_viewport_array */ |
| if (brw->gen >= 6 && ctx->API == API_OPENGL_CORE) { |
| ctx->Const.MaxViewports = GEN6_NUM_VIEWPORTS; |
| ctx->Const.ViewportSubpixelBits = 0; |
| |
| /* Cast to float before negating because MaxViewportWidth is unsigned. |
| */ |
| ctx->Const.ViewportBounds.Min = -(float)ctx->Const.MaxViewportWidth; |
| ctx->Const.ViewportBounds.Max = ctx->Const.MaxViewportWidth; |
| } |
| |
| /* ARB_gpu_shader5 */ |
| if (brw->gen >= 7) |
| ctx->Const.MaxVertexStreams = MIN2(4, MAX_VERTEX_STREAMS); |
| } |
| |
| static void |
| brw_adjust_cs_context_constants(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| |
| /* For ES, we set these constants based on SIMD8. |
| * |
| * TODO: Once we can always generate SIMD16, we should update this. |
| * |
| * For GL, we assume we can generate a SIMD16 program, but this currently |
| * is not always true. This allows us to run more test cases, and will be |
| * required based on desktop GL compute shader requirements. |
| */ |
| const int simd_size = ctx->API == API_OPENGL_CORE ? 16 : 8; |
| |
| const uint32_t max_invocations = simd_size * brw->max_cs_threads; |
| ctx->Const.MaxComputeWorkGroupSize[0] = max_invocations; |
| ctx->Const.MaxComputeWorkGroupSize[1] = max_invocations; |
| ctx->Const.MaxComputeWorkGroupSize[2] = max_invocations; |
| ctx->Const.MaxComputeWorkGroupInvocations = max_invocations; |
| } |
| |
| /** |
| * Process driconf (drirc) options, setting appropriate context flags. |
| * |
| * intelInitExtensions still pokes at optionCache directly, in order to |
| * avoid advertising various extensions. No flags are set, so it makes |
| * sense to continue doing that there. |
| */ |
| static void |
| brw_process_driconf_options(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| |
| driOptionCache *options = &brw->optionCache; |
| driParseConfigFiles(options, &brw->intelScreen->optionCache, |
| brw->driContext->driScreenPriv->myNum, "i965"); |
| |
| int bo_reuse_mode = driQueryOptioni(options, "bo_reuse"); |
| switch (bo_reuse_mode) { |
| case DRI_CONF_BO_REUSE_DISABLED: |
| break; |
| case DRI_CONF_BO_REUSE_ALL: |
| intel_bufmgr_gem_enable_reuse(brw->bufmgr); |
| break; |
| } |
| |
| if (!driQueryOptionb(options, "hiz")) { |
| brw->has_hiz = false; |
| /* On gen6, you can only do separate stencil with HIZ. */ |
| if (brw->gen == 6) |
| brw->has_separate_stencil = false; |
| } |
| |
| if (driQueryOptionb(options, "always_flush_batch")) { |
| fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); |
| brw->always_flush_batch = true; |
| } |
| |
| if (driQueryOptionb(options, "always_flush_cache")) { |
| fprintf(stderr, "flushing GPU caches before/after each draw call\n"); |
| brw->always_flush_cache = true; |
| } |
| |
| if (driQueryOptionb(options, "disable_throttling")) { |
| fprintf(stderr, "disabling flush throttling\n"); |
| brw->disable_throttling = true; |
| } |
| |
| brw->precompile = driQueryOptionb(&brw->optionCache, "shader_precompile"); |
| |
| ctx->Const.ForceGLSLExtensionsWarn = |
| driQueryOptionb(options, "force_glsl_extensions_warn"); |
| |
| ctx->Const.DisableGLSLLineContinuations = |
| driQueryOptionb(options, "disable_glsl_line_continuations"); |
| |
| ctx->Const.AllowGLSLExtensionDirectiveMidShader = |
| driQueryOptionb(options, "allow_glsl_extension_directive_midshader"); |
| } |
| |
| GLboolean |
| brwCreateContext(gl_api api, |
| const struct gl_config *mesaVis, |
| __DRIcontext *driContextPriv, |
| unsigned major_version, |
| unsigned minor_version, |
| uint32_t flags, |
| bool notify_reset, |
| unsigned *dri_ctx_error, |
| void *sharedContextPrivate) |
| { |
| __DRIscreen *sPriv = driContextPriv->driScreenPriv; |
| struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate; |
| struct intel_screen *screen = sPriv->driverPrivate; |
| const struct brw_device_info *devinfo = screen->devinfo; |
| struct dd_function_table functions; |
| |
| /* Only allow the __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag if the kernel |
| * provides us with context reset notifications. |
| */ |
| uint32_t allowed_flags = __DRI_CTX_FLAG_DEBUG |
| | __DRI_CTX_FLAG_FORWARD_COMPATIBLE; |
| |
| if (screen->has_context_reset_notification) |
| allowed_flags |= __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS; |
| |
| if (flags & ~allowed_flags) { |
| *dri_ctx_error = __DRI_CTX_ERROR_UNKNOWN_FLAG; |
| return false; |
| } |
| |
| struct brw_context *brw = rzalloc(NULL, struct brw_context); |
| if (!brw) { |
| fprintf(stderr, "%s: failed to alloc context\n", __func__); |
| *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY; |
| return false; |
| } |
| |
| driContextPriv->driverPrivate = brw; |
| brw->driContext = driContextPriv; |
| brw->intelScreen = screen; |
| brw->bufmgr = screen->bufmgr; |
| |
| brw->gen = devinfo->gen; |
| brw->gt = devinfo->gt; |
| brw->is_g4x = devinfo->is_g4x; |
| brw->is_baytrail = devinfo->is_baytrail; |
| brw->is_haswell = devinfo->is_haswell; |
| brw->is_cherryview = devinfo->is_cherryview; |
| brw->has_llc = devinfo->has_llc; |
| brw->has_hiz = devinfo->has_hiz_and_separate_stencil; |
| brw->has_separate_stencil = devinfo->has_hiz_and_separate_stencil; |
| brw->has_pln = devinfo->has_pln; |
| brw->has_compr4 = devinfo->has_compr4; |
| brw->has_surface_tile_offset = devinfo->has_surface_tile_offset; |
| brw->has_negative_rhw_bug = devinfo->has_negative_rhw_bug; |
| brw->needs_unlit_centroid_workaround = |
| devinfo->needs_unlit_centroid_workaround; |
| |
| brw->must_use_separate_stencil = screen->hw_must_use_separate_stencil; |
| brw->has_swizzling = screen->hw_has_swizzling; |
| |
| brw->vs.base.stage = MESA_SHADER_VERTEX; |
| brw->gs.base.stage = MESA_SHADER_GEOMETRY; |
| brw->wm.base.stage = MESA_SHADER_FRAGMENT; |
| if (brw->gen >= 8) { |
| gen8_init_vtable_surface_functions(brw); |
| brw->vtbl.emit_depth_stencil_hiz = gen8_emit_depth_stencil_hiz; |
| } else if (brw->gen >= 7) { |
| gen7_init_vtable_surface_functions(brw); |
| brw->vtbl.emit_depth_stencil_hiz = gen7_emit_depth_stencil_hiz; |
| } else if (brw->gen >= 6) { |
| gen6_init_vtable_surface_functions(brw); |
| brw->vtbl.emit_depth_stencil_hiz = gen6_emit_depth_stencil_hiz; |
| } else { |
| gen4_init_vtable_surface_functions(brw); |
| brw->vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz; |
| } |
| |
| brw_init_driver_functions(brw, &functions); |
| |
| if (notify_reset) |
| functions.GetGraphicsResetStatus = brw_get_graphics_reset_status; |
| |
| struct gl_context *ctx = &brw->ctx; |
| |
| if (!_mesa_initialize_context(ctx, api, mesaVis, shareCtx, &functions)) { |
| *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY; |
| fprintf(stderr, "%s: failed to init mesa context\n", __func__); |
| intelDestroyContext(driContextPriv); |
| return false; |
| } |
| |
| driContextSetFlags(ctx, flags); |
| |
| /* 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 (api != API_OPENGL_CORE && api != API_OPENGLES2) { |
| _swrast_CreateContext(ctx); |
| } |
| |
| _vbo_CreateContext(ctx); |
| if (ctx->swrast_context) { |
| _tnl_CreateContext(ctx); |
| TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline; |
| _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); |
| |
| brw_process_driconf_options(brw); |
| brw_process_intel_debug_variable(brw); |
| |
| if (brw->gen >= 8 && !(INTEL_DEBUG & DEBUG_VEC4VS)) |
| brw->scalar_vs = true; |
| |
| brw_initialize_context_constants(brw); |
| |
| ctx->Const.ResetStrategy = notify_reset |
| ? GL_LOSE_CONTEXT_ON_RESET_ARB : GL_NO_RESET_NOTIFICATION_ARB; |
| |
| /* Reinitialize the context point state. It depends on ctx->Const values. */ |
| _mesa_init_point(ctx); |
| |
| intel_fbo_init(brw); |
| |
| intel_batchbuffer_init(brw); |
| |
| if (brw->gen >= 6) { |
| /* Create a new hardware context. Using a hardware context means that |
| * our GPU state will be saved/restored on context switch, allowing us |
| * to assume that the GPU is in the same state we left it in. |
| * |
| * This is required for transform feedback buffer offsets, query objects, |
| * and also allows us to reduce how much state we have to emit. |
| */ |
| brw->hw_ctx = drm_intel_gem_context_create(brw->bufmgr); |
| |
| if (!brw->hw_ctx) { |
| fprintf(stderr, "Gen6+ requires Kernel 3.6 or later.\n"); |
| intelDestroyContext(driContextPriv); |
| return false; |
| } |
| } |
| |
| brw_init_state(brw); |
| |
| intelInitExtensions(ctx); |
| |
| brw_init_surface_formats(brw); |
| |
| brw->max_vs_threads = devinfo->max_vs_threads; |
| brw->max_hs_threads = devinfo->max_hs_threads; |
| brw->max_ds_threads = devinfo->max_ds_threads; |
| brw->max_gs_threads = devinfo->max_gs_threads; |
| brw->max_wm_threads = devinfo->max_wm_threads; |
| brw->max_cs_threads = devinfo->max_cs_threads; |
| brw->urb.size = devinfo->urb.size; |
| brw->urb.min_vs_entries = devinfo->urb.min_vs_entries; |
| brw->urb.max_vs_entries = devinfo->urb.max_vs_entries; |
| brw->urb.max_hs_entries = devinfo->urb.max_hs_entries; |
| brw->urb.max_ds_entries = devinfo->urb.max_ds_entries; |
| brw->urb.max_gs_entries = devinfo->urb.max_gs_entries; |
| |
| brw_adjust_cs_context_constants(brw); |
| |
| /* Estimate the size of the mappable aperture into the GTT. There's an |
| * ioctl to get the whole GTT size, but not one to get the mappable subset. |
| * It turns out it's basically always 256MB, though some ancient hardware |
| * was smaller. |
| */ |
| uint32_t gtt_size = 256 * 1024 * 1024; |
| |
| /* We don't want to map two objects such that a memcpy between them would |
| * just fault one mapping in and then the other over and over forever. So |
| * we would need to divide the GTT size by 2. Additionally, some GTT is |
| * taken up by things like the framebuffer and the ringbuffer and such, so |
| * be more conservative. |
| */ |
| brw->max_gtt_map_object_size = gtt_size / 4; |
| |
| if (brw->gen == 6) |
| brw->urb.gs_present = false; |
| |
| brw->prim_restart.in_progress = false; |
| brw->prim_restart.enable_cut_index = false; |
| brw->gs.enabled = false; |
| brw->sf.viewport_transform_enable = true; |
| |
| brw->predicate.state = BRW_PREDICATE_STATE_RENDER; |
| |
| ctx->VertexProgram._MaintainTnlProgram = true; |
| ctx->FragmentProgram._MaintainTexEnvProgram = true; |
| |
| brw_draw_init( brw ); |
| |
| if ((flags & __DRI_CTX_FLAG_DEBUG) != 0) { |
| /* Turn on some extra GL_ARB_debug_output generation. */ |
| brw->perf_debug = true; |
| } |
| |
| if ((flags & __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS) != 0) |
| ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB; |
| |
| if (INTEL_DEBUG & DEBUG_SHADER_TIME) |
| brw_init_shader_time(brw); |
| |
| _mesa_compute_version(ctx); |
| |
| _mesa_initialize_dispatch_tables(ctx); |
| _mesa_initialize_vbo_vtxfmt(ctx); |
| |
| if (ctx->Extensions.AMD_performance_monitor) { |
| brw_init_performance_monitors(brw); |
| } |
| |
| vbo_use_buffer_objects(ctx); |
| vbo_always_unmap_buffers(ctx); |
| |
| return true; |
| } |
| |
| void |
| intelDestroyContext(__DRIcontext * driContextPriv) |
| { |
| struct brw_context *brw = |
| (struct brw_context *) driContextPriv->driverPrivate; |
| struct gl_context *ctx = &brw->ctx; |
| |
| /* Dump a final BMP in case the application doesn't call SwapBuffers */ |
| if (INTEL_DEBUG & DEBUG_AUB) { |
| intel_batchbuffer_flush(brw); |
| aub_dump_bmp(&brw->ctx); |
| } |
| |
| _mesa_meta_free(&brw->ctx); |
| brw_meta_fast_clear_free(brw); |
| |
| if (INTEL_DEBUG & DEBUG_SHADER_TIME) { |
| /* Force a report. */ |
| brw->shader_time.report_time = 0; |
| |
| brw_collect_and_report_shader_time(brw); |
| brw_destroy_shader_time(brw); |
| } |
| |
| brw_destroy_state(brw); |
| brw_draw_destroy(brw); |
| |
| drm_intel_bo_unreference(brw->curbe.curbe_bo); |
| if (brw->vs.base.scratch_bo) |
| drm_intel_bo_unreference(brw->vs.base.scratch_bo); |
| if (brw->gs.base.scratch_bo) |
| drm_intel_bo_unreference(brw->gs.base.scratch_bo); |
| if (brw->wm.base.scratch_bo) |
| drm_intel_bo_unreference(brw->wm.base.scratch_bo); |
| |
| drm_intel_gem_context_destroy(brw->hw_ctx); |
| |
| if (ctx->swrast_context) { |
| _swsetup_DestroyContext(&brw->ctx); |
| _tnl_DestroyContext(&brw->ctx); |
| } |
| _vbo_DestroyContext(&brw->ctx); |
| |
| if (ctx->swrast_context) |
| _swrast_DestroyContext(&brw->ctx); |
| |
| intel_batchbuffer_free(brw); |
| |
| drm_intel_bo_unreference(brw->throttle_batch[1]); |
| drm_intel_bo_unreference(brw->throttle_batch[0]); |
| brw->throttle_batch[1] = NULL; |
| brw->throttle_batch[0] = NULL; |
| |
| driDestroyOptionCache(&brw->optionCache); |
| |
| /* free the Mesa context */ |
| _mesa_free_context_data(&brw->ctx); |
| |
| ralloc_free(brw); |
| 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, because 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 brw_context *brw, |
| struct gl_framebuffer *fb) |
| { |
| struct gl_context *ctx = &brw->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_B8G8R8A8_SRGB) { |
| fb->Attachment[i].Renderbuffer->Format = MESA_FORMAT_B8G8R8A8_UNORM; |
| } |
| } |
| } |
| |
| GLboolean |
| intelMakeCurrent(__DRIcontext * driContextPriv, |
| __DRIdrawable * driDrawPriv, |
| __DRIdrawable * driReadPriv) |
| { |
| struct brw_context *brw; |
| GET_CURRENT_CONTEXT(curCtx); |
| |
| if (driContextPriv) |
| brw = (struct brw_context *) driContextPriv->driverPrivate; |
| else |
| brw = 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 (brw_context(curCtx) && brw_context(curCtx) != brw) { |
| _mesa_flush(curCtx); |
| } |
| |
| if (driContextPriv) { |
| struct gl_context *ctx = &brw->ctx; |
| struct gl_framebuffer *fb, *readFb; |
| |
| if (driDrawPriv == NULL) { |
| fb = _mesa_get_incomplete_framebuffer(); |
| } else { |
| fb = driDrawPriv->driverPrivate; |
| driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; |
| } |
| |
| if (driReadPriv == NULL) { |
| readFb = _mesa_get_incomplete_framebuffer(); |
| } else { |
| readFb = driReadPriv->driverPrivate; |
| driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; |
| } |
| |
| /* The sRGB workaround changes the renderbuffer's format. We must change |
| * the format before the renderbuffer's miptree get's allocated, otherwise |
| * the formats of the renderbuffer and its miptree will differ. |
| */ |
| intel_gles3_srgb_workaround(brw, fb); |
| intel_gles3_srgb_workaround(brw, readFb); |
| |
| /* If the context viewport hasn't been initialized, force a call out to |
| * the loader to get buffers so we have a drawable size for the initial |
| * viewport. */ |
| if (!brw->ctx.ViewportInitialized) |
| intel_prepare_render(brw); |
| |
| _mesa_make_current(ctx, fb, readFb); |
| } else { |
| _mesa_make_current(NULL, NULL, NULL); |
| } |
| |
| return true; |
| } |
| |
| void |
| intel_resolve_for_dri2_flush(struct brw_context *brw, |
| __DRIdrawable *drawable) |
| { |
| if (brw->gen < 6) { |
| /* MSAA and fast color clear are not supported, so don't waste time |
| * checking whether a resolve is needed. |
| */ |
| 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; |
| if (rb->mt->num_samples <= 1) |
| intel_miptree_resolve_color(brw, rb->mt); |
| else |
| intel_renderbuffer_downsample(brw, rb); |
| } |
| } |
| |
| 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 brw_context *brw, |
| __DRIdrawable *drawable, |
| __DRIbuffer **buffers, |
| int *count); |
| |
| static void |
| intel_process_dri2_buffer(struct brw_context *brw, |
| __DRIdrawable *drawable, |
| __DRIbuffer *buffer, |
| struct intel_renderbuffer *rb, |
| const char *buffer_name); |
| |
| static void |
| intel_update_image_buffers(struct brw_context *brw, __DRIdrawable *drawable); |
| |
| static void |
| intel_update_dri2_buffers(struct brw_context *brw, __DRIdrawable *drawable) |
| { |
| struct gl_framebuffer *fb = drawable->driverPrivate; |
| struct intel_renderbuffer *rb; |
| __DRIbuffer *buffers = NULL; |
| int i, count; |
| const char *region_name; |
| |
| /* 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(brw, 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(brw, drawable, &buffers[i], rb, region_name); |
| } |
| |
| } |
| |
| void |
| intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) |
| { |
| struct brw_context *brw = context->driverPrivate; |
| __DRIscreen *screen = brw->intelScreen->driScrnPriv; |
| |
| /* 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); |
| |
| if (screen->image.loader) |
| intel_update_image_buffers(brw, drawable); |
| else |
| intel_update_dri2_buffers(brw, drawable); |
| |
| driUpdateFramebufferSize(&brw->ctx, drawable); |
| } |
| |
| /** |
| * intel_prepare_render should be called anywhere that curent read/drawbuffer |
| * state is required. |
| */ |
| void |
| intel_prepare_render(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| __DRIcontext *driContext = brw->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); |
| 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 (brw_is_front_buffer_drawing(ctx->DrawBuffer)) |
| brw->front_buffer_dirty = 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 brw_context *brw, |
| __DRIdrawable *drawable, |
| __DRIbuffer **buffers, |
| int *buffer_count) |
| { |
| __DRIscreen *screen = brw->intelScreen->driScrnPriv; |
| struct gl_framebuffer *fb = drawable->driverPrivate; |
| int i = 0; |
| unsigned attachments[8]; |
| |
| 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 ((brw_is_front_buffer_drawing(fb) || |
| brw_is_front_buffer_reading(fb) || |
| !back_rb) && front_rb) { |
| /* If a fake front buffer is in use, then querying for |
| * __DRI_BUFFER_FRONT_LEFT will cause the server to copy the image from |
| * the real front buffer to the fake front buffer. So before doing the |
| * query, we need to make sure all the pending drawing has landed in the |
| * real front buffer. |
| */ |
| intel_batchbuffer_flush(brw); |
| intel_flush_front(&brw->ctx); |
| |
| attachments[i++] = __DRI_BUFFER_FRONT_LEFT; |
| attachments[i++] = intel_bits_per_pixel(front_rb); |
| } else if (front_rb && brw->front_buffer_dirty) { |
| /* We have pending front buffer rendering, but we aren't querying for a |
| * front buffer. If the front buffer we have is a fake front buffer, |
| * the X server is going to throw it away when it processes the query. |
| * So before doing the query, make sure all the pending drawing has |
| * landed in the real front buffer. |
| */ |
| intel_batchbuffer_flush(brw); |
| intel_flush_front(&brw->ctx); |
| } |
| |
| if (back_rb) { |
| attachments[i++] = __DRI_BUFFER_BACK_LEFT; |
| attachments[i++] = intel_bits_per_pixel(back_rb); |
| } |
| |
| assert(i <= ARRAY_SIZE(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 drm_intel_bo_gem_create_from_name(). |
| * |
| * \see intel_update_renderbuffers() |
| */ |
| static void |
| intel_process_dri2_buffer(struct brw_context *brw, |
| __DRIdrawable *drawable, |
| __DRIbuffer *buffer, |
| struct intel_renderbuffer *rb, |
| const char *buffer_name) |
| { |
| struct gl_framebuffer *fb = drawable->driverPrivate; |
| drm_intel_bo *bo; |
| |
| 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. |
| */ |
| struct intel_mipmap_tree *last_mt; |
| if (num_samples == 0) |
| last_mt = rb->mt; |
| else |
| last_mt = rb->singlesample_mt; |
| |
| uint32_t old_name = 0; |
| if (last_mt) { |
| /* The bo already has a name because the miptree was created by a |
| * previous call to intel_process_dri2_buffer(). If a bo already has a |
| * name, then drm_intel_bo_flink() is a low-cost getter. It does not |
| * create a new name. |
| */ |
| drm_intel_bo_flink(last_mt->bo, &old_name); |
| } |
| |
| if (old_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); |
| bo = drm_intel_bo_gem_create_from_name(brw->bufmgr, buffer_name, |
| buffer->name); |
| if (!bo) { |
| fprintf(stderr, |
| "Failed to open BO for returned DRI2 buffer " |
| "(%dx%d, %s, named %d).\n" |
| "This is likely a bug in the X Server that will lead to a " |
| "crash soon.\n", |
| drawable->w, drawable->h, buffer_name, buffer->name); |
| return; |
| } |
| |
| intel_update_winsys_renderbuffer_miptree(brw, rb, bo, |
| drawable->w, drawable->h, |
| buffer->pitch); |
| |
| if (brw_is_front_buffer_drawing(fb) && |
| (buffer->attachment == __DRI_BUFFER_FRONT_LEFT || |
| buffer->attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) && |
| rb->Base.Base.NumSamples > 1) { |
| intel_renderbuffer_upsample(brw, rb); |
| } |
| |
| assert(rb->mt); |
| |
| drm_intel_bo_unreference(bo); |
| } |
| |
| /** |
| * \brief Query DRI image loader 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 from |
| * the image loader |
| * |
| * 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() |
| */ |
| |
| static void |
| intel_update_image_buffer(struct brw_context *intel, |
| __DRIdrawable *drawable, |
| struct intel_renderbuffer *rb, |
| __DRIimage *buffer, |
| enum __DRIimageBufferMask buffer_type) |
| { |
| struct gl_framebuffer *fb = drawable->driverPrivate; |
| |
| if (!rb || !buffer->bo) |
| return; |
| |
| unsigned num_samples = rb->Base.Base.NumSamples; |
| |
| /* Check and see if we're already bound to the right |
| * buffer object |
| */ |
| struct intel_mipmap_tree *last_mt; |
| if (num_samples == 0) |
| last_mt = rb->mt; |
| else |
| last_mt = rb->singlesample_mt; |
| |
| if (last_mt && last_mt->bo == buffer->bo) |
| return; |
| |
| intel_update_winsys_renderbuffer_miptree(intel, rb, buffer->bo, |
| buffer->width, buffer->height, |
| buffer->pitch); |
| |
| if (brw_is_front_buffer_drawing(fb) && |
| buffer_type == __DRI_IMAGE_BUFFER_FRONT && |
| rb->Base.Base.NumSamples > 1) { |
| intel_renderbuffer_upsample(intel, rb); |
| } |
| } |
| |
| static void |
| intel_update_image_buffers(struct brw_context *brw, __DRIdrawable *drawable) |
| { |
| struct gl_framebuffer *fb = drawable->driverPrivate; |
| __DRIscreen *screen = brw->intelScreen->driScrnPriv; |
| struct intel_renderbuffer *front_rb; |
| struct intel_renderbuffer *back_rb; |
| struct __DRIimageList images; |
| unsigned int format; |
| uint32_t buffer_mask = 0; |
| |
| front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); |
| back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); |
| |
| if (back_rb) |
| format = intel_rb_format(back_rb); |
| else if (front_rb) |
| format = intel_rb_format(front_rb); |
| else |
| return; |
| |
| if (front_rb && (brw_is_front_buffer_drawing(fb) || |
| brw_is_front_buffer_reading(fb) || !back_rb)) { |
| buffer_mask |= __DRI_IMAGE_BUFFER_FRONT; |
| } |
| |
| if (back_rb) |
| buffer_mask |= __DRI_IMAGE_BUFFER_BACK; |
| |
| (*screen->image.loader->getBuffers) (drawable, |
| driGLFormatToImageFormat(format), |
| &drawable->dri2.stamp, |
| drawable->loaderPrivate, |
| buffer_mask, |
| &images); |
| |
| if (images.image_mask & __DRI_IMAGE_BUFFER_FRONT) { |
| drawable->w = images.front->width; |
| drawable->h = images.front->height; |
| intel_update_image_buffer(brw, |
| drawable, |
| front_rb, |
| images.front, |
| __DRI_IMAGE_BUFFER_FRONT); |
| } |
| if (images.image_mask & __DRI_IMAGE_BUFFER_BACK) { |
| drawable->w = images.back->width; |
| drawable->h = images.back->height; |
| intel_update_image_buffer(brw, |
| drawable, |
| back_rb, |
| images.back, |
| __DRI_IMAGE_BUFFER_BACK); |
| } |
| } |