src/third_party/skia/src/gpu/GrEffect.cpp

   1 /*
   2  * Copyright 2012 Google Inc.
   3  *
   4  * Use of this source code is governed by a BSD-style license that can be
   5  * found in the LICENSE file.
   6  */
   7
   8 #include "GrEffect.h"
   9 #include "GrBackendEffectFactory.h"
  10 #include "GrContext.h"
  11 #include "GrCoordTransform.h"
  12 #include "GrMemoryPool.h"
  13 #include "SkTLS.h"
  14
  15 #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
  16 SkTArray<GrEffectTestFactory*, true>* GrEffectTestFactory::GetFactories() {
  17     static SkTArray<GrEffectTestFactory*, true> gFactories;
  18     return &gFactories;
  19 }
  20 #endif
  21
  22 namespace GrEffectUnitTest {
  23 const SkMatrix& TestMatrix(SkRandom* random) {
  24     static SkMatrix gMatrices[5];
  25     static bool gOnce;
  26     if (!gOnce) {
  27         gMatrices[0].reset();
  28         gMatrices[1].setTranslate(SkIntToScalar(-100), SkIntToScalar(100));
  29         gMatrices[2].setRotate(SkIntToScalar(17));
  30         gMatrices[3].setRotate(SkIntToScalar(185));
  31         gMatrices[3].postTranslate(SkIntToScalar(66), SkIntToScalar(-33));
  32         gMatrices[3].postScale(SkIntToScalar(2), SK_ScalarHalf);
  33         gMatrices[4].setRotate(SkIntToScalar(215));
  34         gMatrices[4].set(SkMatrix::kMPersp0, 0.00013f);
  35         gMatrices[4].set(SkMatrix::kMPersp1, -0.000039f);
  36         gOnce = true;
  37     }
  38     return gMatrices[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gMatrices)))];
  39 }
  40 }
  41
  42 class GrEffect_Globals {
  43 public:
  44     static GrMemoryPool* GetTLS() {
  45         return (GrMemoryPool*)SkTLS::Get(CreateTLS, DeleteTLS);
  46     }
  47
  48 private:
  49     static void* CreateTLS() {
  50         return SkNEW_ARGS(GrMemoryPool, (4096, 4096));
  51     }
  52
  53     static void DeleteTLS(void* pool) {
  54         SkDELETE(reinterpret_cast<GrMemoryPool*>(pool));
  55     }
  56 };
  57
  58 int32_t GrBackendEffectFactory::fCurrEffectClassID = GrBackendEffectFactory::kIllegalEffectClassID;
  59
  60 ///////////////////////////////////////////////////////////////////////////////
  61
  62 GrEffect::~GrEffect() {}
  63
  64 const char* GrEffect::name() const {
  65     return this->getFactory().name();
  66 }
  67
  68 void GrEffect::addCoordTransform(const GrCoordTransform* transform) {
  69     fCoordTransforms.push_back(transform);
  70     SkDEBUGCODE(transform->setInEffect();)
  71 }
  72
  73 void GrEffect::addTextureAccess(const GrTextureAccess* access) {
  74     fTextureAccesses.push_back(access);
  75 }
  76
  77 void* GrEffect::operator new(size_t size) {
  78     return GrEffect_Globals::GetTLS()->allocate(size);
  79 }
  80
  81 void GrEffect::operator delete(void* target) {
  82     GrEffect_Globals::GetTLS()->release(target);
  83 }
  84
  85 #ifdef SK_DEBUG
  86 void GrEffect::assertEquality(const GrEffect& other) const {
  87     SkASSERT(this->numTransforms() == other.numTransforms());
  88     for (int i = 0; i < this->numTransforms(); ++i) {
  89         SkASSERT(this->coordTransform(i) == other.coordTransform(i));
  90     }
  91     SkASSERT(this->numTextures() == other.numTextures());
  92     for (int i = 0; i < this->numTextures(); ++i) {
  93         SkASSERT(this->textureAccess(i) == other.textureAccess(i));
  94     }
  95 }
  96 #endif