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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 = 41;
     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 GrProcessor::~GrProcessor() {}
    124 
    125 void GrProcessor::addTextureSampler(const TextureSampler* access) {
    126     fTextureSamplers.push_back(access);
    127 }
    128 
    129 void GrProcessor::addBufferAccess(const BufferAccess* access) {
    130     fBufferAccesses.push_back(access);
    131 }
    132 
    133 void GrProcessor::addImageStorageAccess(const ImageStorageAccess* access) {
    134     fImageStorageAccesses.push_back(access);
    135 }
    136 
    137 void GrProcessor::addPendingIOs() const {
    138     for (const auto& sampler : fTextureSamplers) {
    139         sampler->programTexture()->markPendingIO();
    140     }
    141     for (const auto& buffer : fBufferAccesses) {
    142         buffer->programBuffer()->markPendingIO();
    143     }
    144     for (const auto& imageStorage : fImageStorageAccesses) {
    145         imageStorage->programTexture()->markPendingIO();
    146     }
    147 }
    148 
    149 void GrProcessor::removeRefs() const {
    150     for (const auto& sampler : fTextureSamplers) {
    151         sampler->programTexture()->removeRef();
    152     }
    153     for (const auto& buffer : fBufferAccesses) {
    154         buffer->programBuffer()->removeRef();
    155     }
    156     for (const auto& imageStorage : fImageStorageAccesses) {
    157         imageStorage->programTexture()->removeRef();
    158     }
    159 }
    160 
    161 void GrProcessor::pendingIOComplete() const {
    162     for (const auto& sampler : fTextureSamplers) {
    163         sampler->programTexture()->pendingIOComplete();
    164     }
    165     for (const auto& buffer : fBufferAccesses) {
    166         buffer->programBuffer()->pendingIOComplete();
    167     }
    168     for (const auto& imageStorage : fImageStorageAccesses) {
    169         imageStorage->programTexture()->pendingIOComplete();
    170     }
    171 }
    172 
    173 void* GrProcessor::operator new(size_t size) {
    174     return MemoryPoolAccessor().pool()->allocate(size);
    175 }
    176 
    177 void GrProcessor::operator delete(void* target) {
    178     return MemoryPoolAccessor().pool()->release(target);
    179 }
    180 
    181 bool GrProcessor::hasSameSamplersAndAccesses(const GrProcessor &that) const {
    182     if (this->numTextureSamplers() != that.numTextureSamplers() ||
    183         this->numBuffers() != that.numBuffers() ||
    184         this->numImageStorages() != that.numImageStorages()) {
    185         return false;
    186     }
    187     for (int i = 0; i < this->numTextureSamplers(); ++i) {
    188         if (this->textureSampler(i) != that.textureSampler(i)) {
    189             return false;
    190         }
    191     }
    192     for (int i = 0; i < this->numBuffers(); ++i) {
    193         if (this->bufferAccess(i) != that.bufferAccess(i)) {
    194             return false;
    195         }
    196     }
    197     for (int i = 0; i < this->numImageStorages(); ++i) {
    198         if (this->imageStorageAccess(i) != that.imageStorageAccess(i)) {
    199             return false;
    200         }
    201     }
    202     return true;
    203 }
    204 
    205 ///////////////////////////////////////////////////////////////////////////////////////////////////
    206 
    207 GrProcessor::TextureSampler::TextureSampler() {}
    208 
    209 GrProcessor::TextureSampler::TextureSampler(GrTexture* texture, const GrSamplerParams& params) {
    210     this->reset(texture, params);
    211 }
    212 
    213 GrProcessor::TextureSampler::TextureSampler(GrTexture* texture,
    214                                             GrSamplerParams::FilterMode filterMode,
    215                                             SkShader::TileMode tileXAndY,
    216                                             GrShaderFlags visibility) {
    217     this->reset(texture, filterMode, tileXAndY, visibility);
    218 }
    219 
    220 GrProcessor::TextureSampler::TextureSampler(GrResourceProvider* resourceProvider,
    221                                             sk_sp<GrTextureProxy> proxy,
    222                                             const GrSamplerParams& params) {
    223     this->reset(resourceProvider, std::move(proxy), params);
    224 }
    225 
    226 GrProcessor::TextureSampler::TextureSampler(GrResourceProvider* resourceProvider,
    227                                             sk_sp<GrTextureProxy> proxy,
    228                                             GrSamplerParams::FilterMode filterMode,
    229                                             SkShader::TileMode tileXAndY,
    230                                             GrShaderFlags visibility) {
    231     this->reset(resourceProvider, std::move(proxy), filterMode, tileXAndY, visibility);
    232 }
    233 
    234 void GrProcessor::TextureSampler::reset(GrTexture* texture,
    235                                         const GrSamplerParams& params,
    236                                         GrShaderFlags visibility) {
    237     SkASSERT(texture);
    238     fTexture.set(SkRef(texture), kRead_GrIOType);
    239     fParams = params;
    240     fParams.setFilterMode(SkTMin(params.filterMode(), texture->texturePriv().highestFilterMode()));
    241     fVisibility = visibility;
    242 }
    243 
    244 void GrProcessor::TextureSampler::reset(GrTexture* texture,
    245                                         GrSamplerParams::FilterMode filterMode,
    246                                         SkShader::TileMode tileXAndY,
    247                                         GrShaderFlags visibility) {
    248     SkASSERT(texture);
    249     fTexture.set(SkRef(texture), kRead_GrIOType);
    250     filterMode = SkTMin(filterMode, texture->texturePriv().highestFilterMode());
    251     fParams.reset(tileXAndY, filterMode);
    252     fVisibility = visibility;
    253 }
    254 
    255 void GrProcessor::TextureSampler::reset(GrResourceProvider* resourceProvider,
    256                                         sk_sp<GrTextureProxy> proxy,
    257                                         const GrSamplerParams& params,
    258                                         GrShaderFlags visibility) {
    259     // For now, end the deferral at this time. Once all the TextureSamplers are swapped over
    260     // to taking a GrSurfaceProxy just use the IORefs on the proxy
    261     GrTexture* texture = proxy->instantiate(resourceProvider);
    262     SkASSERT(texture);
    263     fTexture.set(SkRef(texture), kRead_GrIOType);
    264     fParams = params;
    265     fParams.setFilterMode(SkTMin(params.filterMode(), texture->texturePriv().highestFilterMode()));
    266     fVisibility = visibility;
    267 }
    268 
    269 void GrProcessor::TextureSampler::reset(GrResourceProvider* resourceProvider,
    270                                         sk_sp<GrTextureProxy> proxy,
    271                                         GrSamplerParams::FilterMode filterMode,
    272                                         SkShader::TileMode tileXAndY,
    273                                         GrShaderFlags visibility) {
    274     // For now, end the deferral at this time. Once all the TextureSamplers are swapped over
    275     // to taking a GrSurfaceProxy just use the IORefs on the proxy
    276     GrTexture* texture = proxy->instantiate(resourceProvider);
    277     SkASSERT(texture);
    278     fTexture.set(SkRef(texture), kRead_GrIOType);
    279     filterMode = SkTMin(filterMode, texture->texturePriv().highestFilterMode());
    280     fParams.reset(tileXAndY, filterMode);
    281     fVisibility = visibility;
    282 }
    283 
    284 ///////////////////////////////////////////////////////////////////////////////////////////////////
    285 
    286 GrProcessor::ImageStorageAccess::ImageStorageAccess(sk_sp<GrTexture> texture, GrIOType ioType,
    287                                                     GrSLMemoryModel memoryModel,
    288                                                     GrSLRestrict restrict,
    289                                                     GrShaderFlags visibility) {
    290     SkASSERT(texture);
    291     fTexture.set(texture.release(), ioType);
    292     fMemoryModel = memoryModel;
    293     fRestrict = restrict;
    294     fVisibility = visibility;
    295     // We currently infer this from the config. However, we could allow the client to specify
    296     // a format that is different but compatible with the config.
    297     switch (fTexture.get()->config()) {
    298         case kRGBA_8888_GrPixelConfig:
    299             fFormat = GrImageStorageFormat::kRGBA8;
    300             break;
    301         case kRGBA_8888_sint_GrPixelConfig:
    302             fFormat = GrImageStorageFormat::kRGBA8i;
    303             break;
    304         case kRGBA_half_GrPixelConfig:
    305             fFormat = GrImageStorageFormat::kRGBA16f;
    306             break;
    307         case kRGBA_float_GrPixelConfig:
    308             fFormat = GrImageStorageFormat::kRGBA32f;
    309             break;
    310         default:
    311             SkFAIL("Config is not (yet) supported as image storage.");
    312             break;
    313     }
    314 }
    315