Calculate stage stats in GrOptDrawState

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 "effects/GrConfigConversionEffect.h"
 #include "gl/GrGLPathRendering.h"
 #include "gl/GrGpuGL.h"
 #include "SkChecksum.h"
 #include "SkRandom.h"
 #include "Test.h"
 
+static void get_stage_stats(const GrEffectStage stage, bool* readsDst,
+                            bool* readsFragPosition, bool* requiresVertexShader) {
+    if (stage.getEffect()->willReadDstColor()) {
+        *readsDst = true;
+    }
+    if (stage.getEffect()->willReadFragmentPosition()) {
+        *readsFragPosition = true;
+    }
+    if (stage.getEffect()->requiresVertexShader()) {
+        *requiresVertexShader = true;
+    }
+}
+
 bool GrGLProgramDesc::setRandom(SkRandom* random,
                                 const GrGpuGL* gpu,
                                 const GrRenderTarget* dstRenderTarget,
                                 const GrTexture* dstCopyTexture,
                                 const GrEffectStage* geometryProcessor,
                                 const GrEffectStage* stages[],
                                 int numColorStages,
                                 int numCoverageStages,
                                 int currAttribIndex) {
     bool useLocalCoords = random->nextBool() && currAttribIndex < GrDrawState::kMaxVertexAttribCnt;
@@ skipping 16 matching lines @@
         uint16_t* offsetAndSize = reinterpret_cast<uint16_t*>(fKey.begin() +
                                                               kEffectKeyOffsetsAndLengthOffset +
                                                               offset * 2 * sizeof(uint16_t));
         uint32_t effectKeyOffset = fKey.count();
         if (effectKeyOffset > SK_MaxU16) {
             fKey.reset();
             return false;
         }
         GrEffectKeyBuilder b(&fKey);
         uint16_t effectKeySize;
-        if (!GetEffectKeyAndUpdateStats(*stage, gpu->glCaps(), useLocalCoords, &b,
-                                        &effectKeySize, &dstRead, &fragPos, &vertexShader)) {
+        if (!GetEffectKey(*stage, gpu->glCaps(), useLocalCoords, &b, &effectKeySize)) {
             fKey.reset();
             return false;
         }
+        get_stage_stats(*stage, &dstRead, &fragPos, &vertexShader);
         offsetAndSize[0] = effectKeyOffset;
         offsetAndSize[1] = effectKeySize;
         offset++;
     }
 
     for (int s = 0; s < numStages; ++s, ++offset) {
         const GrEffectStage* stage = stages[s];
         uint16_t* offsetAndSize = reinterpret_cast<uint16_t*>(fKey.begin() +
                                                               kEffectKeyOffsetsAndLengthOffset +
                                                               offset * 2 * sizeof(uint16_t));
         uint32_t effectKeyOffset = fKey.count();
         if (effectKeyOffset > SK_MaxU16) {
             fKey.reset();
             return false;
         }
         GrEffectKeyBuilder b(&fKey);
         uint16_t effectKeySize;
-        if (!GetEffectKeyAndUpdateStats(*stage, gpu->glCaps(), useLocalCoords, &b,
-                                        &effectKeySize, &dstRead, &fragPos, &vertexShader)) {
+        if (!GetEffectKey(*stages[s], gpu->glCaps(), useLocalCoords, &b, &effectKeySize)) {
             fKey.reset();
             return false;
         }
+        get_stage_stats(*stage, &dstRead, &fragPos, &vertexShader);
         offsetAndSize[0] = effectKeyOffset;
         offsetAndSize[1] = effectKeySize;
     }
 
     KeyHeader* header = this->header();
     memset(header, 0, kHeaderSize);
     header->fEmitsPointSize = random->nextBool();
 
     header->fPositionAttributeIndex = 0;
 
@@ skipping 273 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