Implement NVPR on GLES

tests/GLProgramsTest.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This is a GPU-backend specific test. It relies on static intializers to work
 
 #include "SkTypes.h"
 
 #if SK_SUPPORT_GPU && SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
 
 #include "GrBackendEffectFactory.h"
 #include "GrContextFactory.h"
 #include "GrDrawEffect.h"
 #include "effects/GrConfigConversionEffect.h"
+#include "gl/GrGLPathRendering.h"
 #include "gl/GrGpuGL.h"
-
 #include "SkChecksum.h"
 #include "SkRandom.h"
 #include "Test.h"
 
 bool GrGLProgramDesc::setRandom(SkRandom* random,
                                 const GrGpuGL* gpu,
                                 const GrRenderTarget* dstRenderTarget,
                                 const GrTexture* dstCopyTexture,
                                 const GrEffectStage* stages[],
                                 int numColorStages,
                                 int numCoverageStages,
                                 int currAttribIndex) {
     bool useLocalCoords = random->nextBool() && currAttribIndex < GrDrawState::kMaxVertexAttribCnt;
 
     int numStages = numColorStages + numCoverageStages;
     fKey.reset();
 
     GR_STATIC_ASSERT(0 == kEffectKeyOffsetsAndLengthOffset % sizeof(uint32_t));
 
     // Make room for everything up to and including the array of offsets to effect keys.
     fKey.push_back_n(kEffectKeyOffsetsAndLengthOffset + 2 * sizeof(uint16_t) * numStages);
 
     bool dstRead = false;
     bool fragPos = false;
-    bool vertexCode = false;
+    bool vertexShader = false;
     for (int s = 0; s < numStages; ++s) {
         uint16_t* offsetAndSize = reinterpret_cast<uint16_t*>(fKey.begin() +
                                                               kEffectKeyOffsetsAndLengthOffset +
                                                               s * 2 * sizeof(uint16_t));
         uint32_t effectKeyOffset = fKey.count();
         if (effectKeyOffset > SK_MaxU16) {
             fKey.reset();
             return false;
         }
         GrDrawEffect drawEffect(*stages[s], useLocalCoords);
         GrEffectKeyBuilder b(&fKey);
         uint16_t effectKeySize;
         if (!GetEffectKeyAndUpdateStats(*stages[s], gpu->glCaps(), useLocalCoords, &b,
-                                        &effectKeySize, &dstRead, &fragPos, &vertexCode)) {
+                                        &effectKeySize, &dstRead, &fragPos, &vertexShader)) {
             fKey.reset();
             return false;
         }
         offsetAndSize[0] = effectKeyOffset;
         offsetAndSize[1] = effectKeySize;
     }
 
     KeyHeader* header = this->header();
     memset(header, 0, kHeaderSize);
     header->fEmitsPointSize = random->nextBool();
@@ skipping 37 matching lines @@
     } else {
         header->fDstReadKey = 0;
     }
     if (fragPos) {
         header->fFragPosKey = SkToU8(GrGLFragmentShaderBuilder::KeyForFragmentPosition(dstRenderTarget,
                                                                                gpu->glCaps()));
     } else {
         header->fFragPosKey = 0;
     }
 
-    header->fHasVertexCode = vertexCode ||
-                             useLocalCoords ||
-                             kAttribute_ColorInput == header->fColorInput ||
-                             kAttribute_ColorInput == header->fCoverageInput;
+    header->fRequiresVertexShader = vertexShader ||
+                                    useLocalCoords ||
+                                    kAttribute_ColorInput == header->fColorInput ||
+                                    kAttribute_ColorInput == header->fCoverageInput;
 
     CoverageOutput coverageOutput;
     bool illegalCoverageOutput;
     do {
         coverageOutput = static_cast<CoverageOutput>(random->nextULessThan(kCoverageOutputCnt));
         illegalCoverageOutput = (!gpu->caps()->dualSourceBlendingSupport() &&
                                  CoverageOutputUsesSecondaryOutput(coverageOutput)) ||
                                 (!dstRead && kCombineWithDst_CoverageOutput == coverageOutput);
     } while (illegalCoverageOutput);
 
@@ skipping 40 matching lines @@
         int currTextureCoordSet = 0;
         int attribIndices[2] = { 0, 0 };
         GrTexture* dummyTextures[] = {dummyTexture1.get(), dummyTexture2.get()};
 
         int numStages = random.nextULessThan(maxStages + 1);
         int numColorStages = random.nextULessThan(numStages + 1);
         int numCoverageStages = numStages - numColorStages;
 
         SkAutoSTMalloc<8, const GrEffectStage*> stages(numStages);
 
-        bool useFixedFunctionTexturing = this->shouldUseFixedFunctionTexturing();
+        bool useFixedFunctionPathRendering = this->glCaps().pathRenderingSupport() &&
+            this->glPathRendering()->texturingMode() == GrGLPathRendering::FixedFunction_TexturingMode;
 
         for (int s = 0; s < numStages;) {
             SkAutoTUnref<const GrEffect> effect(GrEffectTestFactory::CreateStage(
                                                                             &random,
                                                                             this->getContext(),
                                                                             *this->caps(),
                                                                             dummyTextures));
             SkASSERT(effect);
             int numAttribs = effect->numVertexAttribs();
 
             // If adding this effect would exceed the max attrib count then generate a
             // new random effect.
             if (currAttribIndex + numAttribs > GrDrawState::kMaxVertexAttribCnt) {
                 continue;
             }
 
 
             // If adding this effect would exceed the max texture coord set count then generate a
             // new random effect.
-            if (useFixedFunctionTexturing && !effect->hasVertexCode()) {
+            if (useFixedFunctionPathRendering && !effect->requiresVertexShader()) {
                 int numTransforms = effect->numTransforms();
                 if (currTextureCoordSet + numTransforms > this->glCaps().maxFixedFunctionTextureCoords()) {
                     continue;
                 }
                 currTextureCoordSet += numTransforms;
             }
 
-            useFixedFunctionTexturing = useFixedFunctionTexturing && !effect->hasVertexCode();
+            useFixedFunctionPathRendering = useFixedFunctionPathRendering && !effect->requiresVertexShader();
 
             for (int i = 0; i < numAttribs; ++i) {
                 attribIndices[i] = currAttribIndex++;
             }
             GrEffectStage* stage = SkNEW_ARGS(GrEffectStage,
                                               (effect.get(), attribIndices[0], attribIndices[1]));
             stages[s] = stage;
             ++s;
         }
         const GrTexture* dstTexture = random.nextBool() ? dummyTextures[0] : dummyTextures[1];
@@ skipping 58 matching lines @@
         SkRect::MakeWH(SK_Scalar1, SK_Scalar1), SK_Scalar1));
     GrConfigConversionEffect::Create(NULL,
                                      false,
                                      GrConfigConversionEffect::kNone_PMConversion,
                                      SkMatrix::I());
     SkScalar matrix[20];
     SkAutoTUnref<SkColorMatrixFilter> cmf(SkColorMatrixFilter::Create(matrix));
 }
 
 #endif