Add support for GL_EXT_raster_multisample

src/gpu/GrCaps.cpp

 
 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrCaps.h"
 #include "GrContextOptions.h"
@@ skipping 73 matching lines @@
     fTwoSidedStencilSupport = false;
     fStencilWrapOpsSupport = false;
     fDiscardRenderTargetSupport = false;
     fReuseScratchTextures = true;
     fReuseScratchBuffers = true;
     fGpuTracingSupport = false;
     fCompressedTexSubImageSupport = false;
     fOversizedStencilSupport = false;
     fTextureBarrierSupport = false;
     fUsesMixedSamples = false;
+    fRasterMultisampleSupport = false;
     fSupportsInstancedDraws = false;
     fFullClearIsFree = false;
     fMustClearUploadedBufferData = false;
 
     fUseDrawInsteadOfClear = false;
 
     fBlendEquationSupport = kBasic_BlendEquationSupport;
     fAdvBlendEqBlacklist = 0;
 
     fMapBufferFlags = kNone_MapFlags;
 
     fMaxRenderTargetSize = 1;
     fMaxTextureSize = 1;
     fMaxColorSampleCount = 0;
     fMaxStencilSampleCount = 0;
+    fMaxRasterSamples = 0;
 
     fSuppressPrints = options.fSuppressPrints;
     fImmediateFlush = options.fImmediateMode;
     fDrawPathMasksToCompressedTextureSupport = options.fDrawPathToCompressedTexture;
     fGeometryBufferMapThreshold = options.fGeometryBufferMapThreshold;
     fUseDrawInsteadOfPartialRenderTargetWrite = options.fUseDrawInsteadOfPartialRenderTargetWrite;
 
     fPreferVRAMUseOverFlushes = true;
 }
 
@@ skipping 36 matching lines @@
     r.appendf("Two Sided Stencil Support          : %s\n", gNY[fTwoSidedStencilSupport]);
     r.appendf("Stencil Wrap Ops  Support          : %s\n", gNY[fStencilWrapOpsSupport]);
     r.appendf("Discard Render Target Support      : %s\n", gNY[fDiscardRenderTargetSupport]);
     r.appendf("Reuse Scratch Textures             : %s\n", gNY[fReuseScratchTextures]);
     r.appendf("Reuse Scratch Buffers              : %s\n", gNY[fReuseScratchBuffers]);
     r.appendf("Gpu Tracing Support                : %s\n", gNY[fGpuTracingSupport]);
     r.appendf("Compressed Update Support          : %s\n", gNY[fCompressedTexSubImageSupport]);
     r.appendf("Oversized Stencil Support          : %s\n", gNY[fOversizedStencilSupport]);
     r.appendf("Texture Barrier Support            : %s\n", gNY[fTextureBarrierSupport]);
     r.appendf("Uses Mixed Samples                 : %s\n", gNY[fUsesMixedSamples]);
+    r.appendf("Raster Multisample Support         : %s\n", gNY[fRasterMultisampleSupport]);
     r.appendf("Supports instanced draws           : %s\n", gNY[fSupportsInstancedDraws]);
     r.appendf("Full screen clear is free          : %s\n", gNY[fFullClearIsFree]);
     r.appendf("Must clear buffer memory           : %s\n", gNY[fMustClearUploadedBufferData]);
     r.appendf("Draw Instead of Clear [workaround] : %s\n", gNY[fUseDrawInsteadOfClear]);
     r.appendf("Draw Instead of TexSubImage [workaround] : %s\n",
               gNY[fUseDrawInsteadOfPartialRenderTargetWrite]);
     r.appendf("Prefer VRAM Use over flushes [workaround] : %s\n", gNY[fPreferVRAMUseOverFlushes]);
 
     if (this->advancedBlendEquationSupport()) {
         r.appendf("Advanced Blend Equation Blacklist  : 0x%x\n", fAdvBlendEqBlacklist);
     }
 
     r.appendf("Max Texture Size                   : %d\n", fMaxTextureSize);
     r.appendf("Max Render Target Size             : %d\n", fMaxRenderTargetSize);
     r.appendf("Max Color Sample Count             : %d\n", fMaxColorSampleCount);
     r.appendf("Max Stencil Sample Count           : %d\n", fMaxStencilSampleCount);
+    if (this->rasterMultisampleSupport()) {
+        r.appendf("Max Raster Samples                 : %d\n", fMaxRasterSamples);
+    }
 
     static const char* kBlendEquationSupportNames[] = {
         "Basic",
         "Advanced",
         "Advanced Coherent",
     };
     GR_STATIC_ASSERT(0 == kBasic_BlendEquationSupport);
     GR_STATIC_ASSERT(1 == kAdvanced_BlendEquationSupport);
     GR_STATIC_ASSERT(2 == kAdvancedCoherent_BlendEquationSupport);
     GR_STATIC_ASSERT(SK_ARRAY_COUNT(kBlendEquationSupportNames) == kLast_BlendEquationSupport + 1);
@@ skipping 52 matching lines @@
 
     for (size_t i = 1; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
         GrPixelConfig config = static_cast<GrPixelConfig>(i);
         r.appendf("%s is uploadable to a texture: %s\n",
                   kConfigNames[i],
                   gNY[this->isConfigTexturable(config)]);
     }
 
     return r;
 }