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      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 "GrProcessor.h"
      9 #include "GrContext.h"
     10 #include "GrGeometryProcessor.h"
     11 #include "GrMemoryPool.h"
     12 #include "GrSamplerParams.h"
     13 #include "GrTexturePriv.h"
     14 #include "GrTextureProxy.h"
     15 #include "GrXferProcessor.h"
     16 #include "SkSpinlock.h"
     17 
     18 #if GR_TEST_UTILS
     19 
     20 GrResourceProvider* GrProcessorTestData::resourceProvider() {
     21     return fContext->resourceProvider();
     22 }
     23 
     24 const GrCaps* GrProcessorTestData::caps() {
     25     return fContext->caps();
     26 }
     27 
     28 #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
     29 class GrFragmentProcessor;
     30 class GrGeometryProcessor;
     31 
     32 /*
     33  * Originally these were both in the processor unit test header, but then it seemed to cause linker
     34  * problems on android.
     35  */
     36 template<>
     37 SkTArray<GrProcessorTestFactory<GrFragmentProcessor>*, true>*
     38 GrProcessorTestFactory<GrFragmentProcessor>::GetFactories() {
     39     static SkTArray<GrProcessorTestFactory<GrFragmentProcessor>*, true> gFactories;
     40     return &gFactories;
     41 }
     42 
     43 template<>
     44 SkTArray<GrProcessorTestFactory<GrGeometryProcessor>*, true>*
     45 GrProcessorTestFactory<GrGeometryProcessor>::GetFactories() {
     46     static SkTArray<GrProcessorTestFactory<GrGeometryProcessor>*, true> gFactories;
     47     return &gFactories;
     48 }
     49 
     50 SkTArray<GrXPFactoryTestFactory*, true>* GrXPFactoryTestFactory::GetFactories() {
     51     static SkTArray<GrXPFactoryTestFactory*, true> gFactories;
     52     return &gFactories;
     53 }
     54 
     55 /*
     56  * To ensure we always have successful static initialization, before creating from the factories
     57  * we verify the count is as expected.  If a new factory is added, then these numbers must be
     58  * manually adjusted.
     59  */
     60 static const int kFPFactoryCount = 42;
     61 static const int kGPFactoryCount = 14;
     62 static const int kXPFactoryCount = 4;
     63 
     64 template<>
     65 void GrProcessorTestFactory<GrFragmentProcessor>::VerifyFactoryCount() {
     66     if (kFPFactoryCount != GetFactories()->count()) {
     67         SkDebugf("\nExpected %d fragment processor factories, found %d.\n",
     68                  kFPFactoryCount, GetFactories()->count());
     69         SkFAIL("Wrong number of fragment processor factories!");
     70     }
     71 }
     72 
     73 template<>
     74 void GrProcessorTestFactory<GrGeometryProcessor>::VerifyFactoryCount() {
     75     if (kGPFactoryCount != GetFactories()->count()) {
     76         SkDebugf("\nExpected %d geometry processor factories, found %d.\n",
     77                  kGPFactoryCount, GetFactories()->count());
     78         SkFAIL("Wrong number of geometry processor factories!");
     79     }
     80 }
     81 
     82 void GrXPFactoryTestFactory::VerifyFactoryCount() {
     83     if (kXPFactoryCount != GetFactories()->count()) {
     84         SkDebugf("\nExpected %d xp factory factories, found %d.\n",
     85                  kXPFactoryCount, GetFactories()->count());
     86         SkFAIL("Wrong number of xp factory factories!");
     87     }
     88 }
     89 
     90 #endif
     91 #endif
     92 
     93 
     94 // We use a global pool protected by a mutex(spinlock). Chrome may use the same GrContext on
     95 // different threads. The GrContext is not used concurrently on different threads and there is a
     96 // memory barrier between accesses of a context on different threads. Also, there may be multiple
     97 // GrContexts and those contexts may be in use concurrently on different threads.
     98 namespace {
     99 static SkSpinlock gProcessorSpinlock;
    100 class MemoryPoolAccessor {
    101 public:
    102 
    103 // We know in the Android framework there is only one GrContext.
    104 #if defined(SK_BUILD_FOR_ANDROID_FRAMEWORK)
    105     MemoryPoolAccessor() {}
    106     ~MemoryPoolAccessor() {}
    107 #else
    108     MemoryPoolAccessor() { gProcessorSpinlock.acquire(); }
    109     ~MemoryPoolAccessor() { gProcessorSpinlock.release(); }
    110 #endif
    111 
    112     GrMemoryPool* pool() const {
    113         static GrMemoryPool gPool(4096, 4096);
    114         return &gPool;
    115     }
    116 };
    117 }
    118 
    119 int32_t GrProcessor::gCurrProcessorClassID = GrProcessor::kIllegalProcessorClassID;
    120 
    121 ///////////////////////////////////////////////////////////////////////////////
    122 
    123 void* GrProcessor::operator new(size_t size) { return MemoryPoolAccessor().pool()->allocate(size); }
    124 
    125 void GrProcessor::operator delete(void* target) {
    126     return MemoryPoolAccessor().pool()->release(target);
    127 }
    128 
    129 ///////////////////////////////////////////////////////////////////////////////
    130 
    131 void GrResourceIOProcessor::addTextureSampler(const TextureSampler* access) {
    132     fTextureSamplers.push_back(access);
    133 }
    134 
    135 void GrResourceIOProcessor::addBufferAccess(const BufferAccess* access) {
    136     fBufferAccesses.push_back(access);
    137 }
    138 
    139 void GrResourceIOProcessor::addImageStorageAccess(const ImageStorageAccess* access) {
    140     fImageStorageAccesses.push_back(access);
    141 }
    142 
    143 void GrResourceIOProcessor::addPendingIOs() const {
    144     for (const auto& sampler : fTextureSamplers) {
    145         sampler->programProxy()->markPendingIO();
    146     }
    147     for (const auto& buffer : fBufferAccesses) {
    148         buffer->programBuffer()->markPendingIO();
    149     }
    150     for (const auto& imageStorage : fImageStorageAccesses) {
    151         imageStorage->programProxy()->markPendingIO();
    152     }
    153 }
    154 
    155 void GrResourceIOProcessor::removeRefs() const {
    156     for (const auto& sampler : fTextureSamplers) {
    157         sampler->programProxy()->removeRef();
    158     }
    159     for (const auto& buffer : fBufferAccesses) {
    160         buffer->programBuffer()->removeRef();
    161     }
    162     for (const auto& imageStorage : fImageStorageAccesses) {
    163         imageStorage->programProxy()->removeRef();
    164     }
    165 }
    166 
    167 void GrResourceIOProcessor::pendingIOComplete() const {
    168     for (const auto& sampler : fTextureSamplers) {
    169         sampler->programProxy()->pendingIOComplete();
    170     }
    171     for (const auto& buffer : fBufferAccesses) {
    172         buffer->programBuffer()->pendingIOComplete();
    173     }
    174     for (const auto& imageStorage : fImageStorageAccesses) {
    175         imageStorage->programProxy()->pendingIOComplete();
    176     }
    177 }
    178 
    179 bool GrResourceIOProcessor::instantiate(GrResourceProvider* resourceProvider) const {
    180     for (const auto& sampler : fTextureSamplers) {
    181         if (!sampler->instantiate(resourceProvider)) {
    182             return false;
    183         }
    184     }
    185 
    186     // MDB TODO: instantiate 'fBufferAccesses' here as well
    187 
    188     for (const auto& imageStorage : fImageStorageAccesses) {
    189         if (!imageStorage->instantiate(resourceProvider)) {
    190             return false;
    191         }
    192     }
    193 
    194     return true;
    195 }
    196 
    197 bool GrResourceIOProcessor::hasSameSamplersAndAccesses(const GrResourceIOProcessor& that) const {
    198     if (this->numTextureSamplers() != that.numTextureSamplers() ||
    199         this->numBuffers() != that.numBuffers() ||
    200         this->numImageStorages() != that.numImageStorages()) {
    201         return false;
    202     }
    203     for (int i = 0; i < this->numTextureSamplers(); ++i) {
    204         if (this->textureSampler(i) != that.textureSampler(i)) {
    205             return false;
    206         }
    207     }
    208     for (int i = 0; i < this->numBuffers(); ++i) {
    209         if (this->bufferAccess(i) != that.bufferAccess(i)) {
    210             return false;
    211         }
    212     }
    213     for (int i = 0; i < this->numImageStorages(); ++i) {
    214         if (this->imageStorageAccess(i) != that.imageStorageAccess(i)) {
    215             return false;
    216         }
    217     }
    218     return true;
    219 }
    220 
    221 ///////////////////////////////////////////////////////////////////////////////////////////////////
    222 
    223 GrResourceIOProcessor::TextureSampler::TextureSampler() {}
    224 
    225 GrResourceIOProcessor::TextureSampler::TextureSampler(sk_sp<GrTextureProxy> proxy,
    226                                                       const GrSamplerParams& params) {
    227     this->reset(std::move(proxy), params);
    228 }
    229 
    230 GrResourceIOProcessor::TextureSampler::TextureSampler(sk_sp<GrTextureProxy> proxy,
    231                                                       GrSamplerParams::FilterMode filterMode,
    232                                                       SkShader::TileMode tileXAndY,
    233                                                       GrShaderFlags visibility) {
    234     this->reset(std::move(proxy), filterMode, tileXAndY, visibility);
    235 }
    236 
    237 void GrResourceIOProcessor::TextureSampler::reset(sk_sp<GrTextureProxy> proxy,
    238                                                   const GrSamplerParams& params,
    239                                                   GrShaderFlags visibility) {
    240     fParams = params;
    241     fProxyRef.setProxy(std::move(proxy), kRead_GrIOType);
    242     fParams.setFilterMode(SkTMin(params.filterMode(), this->proxy()->highestFilterMode()));
    243     fVisibility = visibility;
    244 }
    245 
    246 void GrResourceIOProcessor::TextureSampler::reset(sk_sp<GrTextureProxy> proxy,
    247                                                   GrSamplerParams::FilterMode filterMode,
    248                                                   SkShader::TileMode tileXAndY,
    249                                                   GrShaderFlags visibility) {
    250     fProxyRef.setProxy(std::move(proxy), kRead_GrIOType);
    251     filterMode = SkTMin(filterMode, this->proxy()->highestFilterMode());
    252     fParams.reset(tileXAndY, filterMode);
    253     fVisibility = visibility;
    254 }
    255 
    256 ///////////////////////////////////////////////////////////////////////////////////////////////////
    257 
    258 GrResourceIOProcessor::ImageStorageAccess::ImageStorageAccess(sk_sp<GrTextureProxy> proxy,
    259                                                               GrIOType ioType,
    260                                                               GrSLMemoryModel memoryModel,
    261                                                               GrSLRestrict restrict,
    262                                                               GrShaderFlags visibility)
    263         : fProxyRef(std::move(proxy), ioType) {
    264     SkASSERT(fProxyRef.get());
    265 
    266     fMemoryModel = memoryModel;
    267     fRestrict = restrict;
    268     fVisibility = visibility;
    269     // We currently infer this from the config. However, we could allow the client to specify
    270     // a format that is different but compatible with the config.
    271     switch (fProxyRef.get()->config()) {
    272         case kRGBA_8888_GrPixelConfig:
    273             fFormat = GrImageStorageFormat::kRGBA8;
    274             break;
    275         case kRGBA_8888_sint_GrPixelConfig:
    276             fFormat = GrImageStorageFormat::kRGBA8i;
    277             break;
    278         case kRGBA_half_GrPixelConfig:
    279             fFormat = GrImageStorageFormat::kRGBA16f;
    280             break;
    281         case kRGBA_float_GrPixelConfig:
    282             fFormat = GrImageStorageFormat::kRGBA32f;
    283             break;
    284         default:
    285             SkFAIL("Config is not (yet) supported as image storage.");
    286             break;
    287     }
    288 }
    289