| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrResourceProvider.h" |
| |
| #include "GrBuffer.h" |
| #include "GrCaps.h" |
| #include "GrContext.h" |
| #include "GrGpu.h" |
| #include "GrPathRendering.h" |
| #include "GrRenderTarget.h" |
| #include "GrRenderTargetPriv.h" |
| #include "GrResourceCache.h" |
| #include "GrResourceKey.h" |
| #include "GrSemaphore.h" |
| #include "GrStencilAttachment.h" |
| #include "GrSurfaceProxyPriv.h" |
| #include "GrTexturePriv.h" |
| #include "../private/GrSingleOwner.h" |
| #include "SkMathPriv.h" |
| |
| GR_DECLARE_STATIC_UNIQUE_KEY(gQuadIndexBufferKey); |
| |
| const int GrResourceProvider::kMinScratchTextureSize = 16; |
| |
| #define ASSERT_SINGLE_OWNER \ |
| SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fSingleOwner);) |
| |
| GrResourceProvider::GrResourceProvider(GrGpu* gpu, GrResourceCache* cache, GrSingleOwner* owner) |
| : fCache(cache) |
| , fGpu(gpu) |
| #ifdef SK_DEBUG |
| , fSingleOwner(owner) |
| #endif |
| { |
| fCaps = sk_ref_sp(fGpu->caps()); |
| |
| GR_DEFINE_STATIC_UNIQUE_KEY(gQuadIndexBufferKey); |
| fQuadIndexBufferKey = gQuadIndexBufferKey; |
| } |
| |
| bool GrResourceProvider::IsFunctionallyExact(GrTextureProxy* proxy) { |
| return proxy->priv().isExact() || (SkIsPow2(proxy->width()) && SkIsPow2(proxy->height())); |
| } |
| |
| GrTexture* GrResourceProvider::createMipMappedTexture(const GrSurfaceDesc& desc, |
| SkBudgeted budgeted, const GrMipLevel* texels, |
| int mipLevelCount, uint32_t flags, |
| SkDestinationSurfaceColorMode mipColorMode) { |
| ASSERT_SINGLE_OWNER |
| |
| if (this->isAbandoned()) { |
| return nullptr; |
| } |
| if (mipLevelCount && !texels) { |
| return nullptr; |
| } |
| for (int i = 0; i < mipLevelCount; ++i) { |
| if (!texels[i].fPixels) { |
| return nullptr; |
| } |
| } |
| if (mipLevelCount > 1 && GrPixelConfigIsSint(desc.fConfig)) { |
| return nullptr; |
| } |
| if ((desc.fFlags & kRenderTarget_GrSurfaceFlag) && |
| !fGpu->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) { |
| return nullptr; |
| } |
| if (!GrPixelConfigIsCompressed(desc.fConfig)) { |
| if (mipLevelCount < 2) { |
| flags |= kExact_Flag | kNoCreate_Flag; |
| if (GrTexture* texture = this->refScratchTexture(desc, flags)) { |
| if (!mipLevelCount || |
| texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig, |
| texels[0].fPixels, texels[0].fRowBytes)) { |
| if (SkBudgeted::kNo == budgeted) { |
| texture->resourcePriv().makeUnbudgeted(); |
| } |
| texture->texturePriv().setMipColorMode(mipColorMode); |
| return texture; |
| } |
| texture->unref(); |
| } |
| } |
| } |
| |
| SkTArray<GrMipLevel> texelsShallowCopy(mipLevelCount); |
| for (int i = 0; i < mipLevelCount; ++i) { |
| texelsShallowCopy.push_back(texels[i]); |
| } |
| GrTexture* texture = fGpu->createTexture(desc, budgeted, texelsShallowCopy); |
| if (texture) { |
| texture->texturePriv().setMipColorMode(mipColorMode); |
| } |
| return texture; |
| } |
| |
| GrTexture* GrResourceProvider::createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted, |
| const void* srcData, size_t rowBytes, uint32_t flags) { |
| GrMipLevel tempTexels; |
| GrMipLevel* texels = nullptr; |
| int levelCount = 0; |
| if (srcData) { |
| tempTexels.fPixels = srcData; |
| tempTexels.fRowBytes = rowBytes; |
| texels = &tempTexels; |
| levelCount = 1; |
| } |
| return this->createMipMappedTexture(desc, budgeted, texels, levelCount, flags); |
| } |
| |
| GrTexture* GrResourceProvider::createApproxTexture(const GrSurfaceDesc& desc, uint32_t flags) { |
| ASSERT_SINGLE_OWNER |
| SkASSERT(0 == flags || kNoPendingIO_Flag == flags); |
| return this->internalCreateApproxTexture(desc, flags); |
| } |
| |
| GrTexture* GrResourceProvider::internalCreateApproxTexture(const GrSurfaceDesc& desc, |
| uint32_t scratchFlags) { |
| ASSERT_SINGLE_OWNER |
| if (this->isAbandoned()) { |
| return nullptr; |
| } |
| // Currently we don't recycle compressed textures as scratch. |
| if (GrPixelConfigIsCompressed(desc.fConfig)) { |
| return nullptr; |
| } else { |
| return this->refScratchTexture(desc, scratchFlags); |
| } |
| } |
| |
| GrTexture* GrResourceProvider::refScratchTexture(const GrSurfaceDesc& inDesc, |
| uint32_t flags) { |
| ASSERT_SINGLE_OWNER |
| SkASSERT(!this->isAbandoned()); |
| SkASSERT(!GrPixelConfigIsCompressed(inDesc.fConfig)); |
| |
| SkTCopyOnFirstWrite<GrSurfaceDesc> desc(inDesc); |
| |
| if (fGpu->caps()->reuseScratchTextures() || (desc->fFlags & kRenderTarget_GrSurfaceFlag)) { |
| if (!(kExact_Flag & flags)) { |
| // bin by pow2 with a reasonable min |
| GrSurfaceDesc* wdesc = desc.writable(); |
| wdesc->fWidth = SkTMax(kMinScratchTextureSize, GrNextPow2(desc->fWidth)); |
| wdesc->fHeight = SkTMax(kMinScratchTextureSize, GrNextPow2(desc->fHeight)); |
| } |
| |
| GrScratchKey key; |
| GrTexturePriv::ComputeScratchKey(*desc, &key); |
| uint32_t scratchFlags = 0; |
| if (kNoPendingIO_Flag & flags) { |
| scratchFlags = GrResourceCache::kRequireNoPendingIO_ScratchFlag; |
| } else if (!(desc->fFlags & kRenderTarget_GrSurfaceFlag)) { |
| // If it is not a render target then it will most likely be populated by |
| // writePixels() which will trigger a flush if the texture has pending IO. |
| scratchFlags = GrResourceCache::kPreferNoPendingIO_ScratchFlag; |
| } |
| GrGpuResource* resource = fCache->findAndRefScratchResource(key, |
| GrSurface::WorstCaseSize(*desc), |
| scratchFlags); |
| if (resource) { |
| GrSurface* surface = static_cast<GrSurface*>(resource); |
| GrRenderTarget* rt = surface->asRenderTarget(); |
| if (rt && fGpu->caps()->discardRenderTargetSupport()) { |
| rt->discard(); |
| } |
| return surface->asTexture(); |
| } |
| } |
| |
| if (!(kNoCreate_Flag & flags)) { |
| return fGpu->createTexture(*desc, SkBudgeted::kYes); |
| } |
| |
| return nullptr; |
| } |
| |
| sk_sp<GrTexture> GrResourceProvider::wrapBackendTexture(const GrBackendTextureDesc& desc, |
| GrWrapOwnership ownership) { |
| ASSERT_SINGLE_OWNER |
| if (this->isAbandoned()) { |
| return nullptr; |
| } |
| return fGpu->wrapBackendTexture(desc, ownership); |
| } |
| |
| sk_sp<GrRenderTarget> GrResourceProvider::wrapBackendRenderTarget( |
| const GrBackendRenderTargetDesc& desc) |
| { |
| ASSERT_SINGLE_OWNER |
| return this->isAbandoned() ? nullptr : fGpu->wrapBackendRenderTarget(desc); |
| } |
| |
| void GrResourceProvider::assignUniqueKeyToResource(const GrUniqueKey& key, |
| GrGpuResource* resource) { |
| ASSERT_SINGLE_OWNER |
| if (this->isAbandoned() || !resource) { |
| return; |
| } |
| resource->resourcePriv().setUniqueKey(key); |
| } |
| |
| GrGpuResource* GrResourceProvider::findAndRefResourceByUniqueKey(const GrUniqueKey& key) { |
| ASSERT_SINGLE_OWNER |
| return this->isAbandoned() ? nullptr : fCache->findAndRefUniqueResource(key); |
| } |
| |
| GrTexture* GrResourceProvider::findAndRefTextureByUniqueKey(const GrUniqueKey& key) { |
| ASSERT_SINGLE_OWNER |
| GrGpuResource* resource = this->findAndRefResourceByUniqueKey(key); |
| if (resource) { |
| GrTexture* texture = static_cast<GrSurface*>(resource)->asTexture(); |
| SkASSERT(texture); |
| return texture; |
| } |
| return NULL; |
| } |
| |
| // MDB TODO (caching): this side-steps the issue of texture proxies with unique IDs |
| void GrResourceProvider::assignUniqueKeyToProxy(const GrUniqueKey& key, GrTextureProxy* proxy) { |
| ASSERT_SINGLE_OWNER |
| SkASSERT(key.isValid()); |
| if (this->isAbandoned() || !proxy) { |
| return; |
| } |
| |
| GrTexture* texture = proxy->instantiate(this); |
| if (!texture) { |
| return; |
| } |
| |
| this->assignUniqueKeyToResource(key, texture); |
| } |
| |
| // MDB TODO (caching): this side-steps the issue of texture proxies with unique IDs |
| sk_sp<GrTextureProxy> GrResourceProvider::findProxyByUniqueKey(const GrUniqueKey& key) { |
| ASSERT_SINGLE_OWNER |
| |
| sk_sp<GrTexture> texture(this->findAndRefTextureByUniqueKey(key)); |
| if (!texture) { |
| return nullptr; |
| } |
| |
| return GrSurfaceProxy::MakeWrapped(std::move(texture)); |
| } |
| |
| const GrBuffer* GrResourceProvider::createInstancedIndexBuffer(const uint16_t* pattern, |
| int patternSize, |
| int reps, |
| int vertCount, |
| const GrUniqueKey& key) { |
| size_t bufferSize = patternSize * reps * sizeof(uint16_t); |
| |
| // This is typically used in GrMeshDrawOps, so we assume kNoPendingIO. |
| GrBuffer* buffer = this->createBuffer(bufferSize, kIndex_GrBufferType, kStatic_GrAccessPattern, |
| kNoPendingIO_Flag); |
| if (!buffer) { |
| return nullptr; |
| } |
| uint16_t* data = (uint16_t*) buffer->map(); |
| bool useTempData = (nullptr == data); |
| if (useTempData) { |
| data = new uint16_t[reps * patternSize]; |
| } |
| for (int i = 0; i < reps; ++i) { |
| int baseIdx = i * patternSize; |
| uint16_t baseVert = (uint16_t)(i * vertCount); |
| for (int j = 0; j < patternSize; ++j) { |
| data[baseIdx+j] = baseVert + pattern[j]; |
| } |
| } |
| if (useTempData) { |
| if (!buffer->updateData(data, bufferSize)) { |
| buffer->unref(); |
| return nullptr; |
| } |
| delete[] data; |
| } else { |
| buffer->unmap(); |
| } |
| this->assignUniqueKeyToResource(key, buffer); |
| return buffer; |
| } |
| |
| const GrBuffer* GrResourceProvider::createQuadIndexBuffer() { |
| static const int kMaxQuads = 1 << 12; // max possible: (1 << 14) - 1; |
| GR_STATIC_ASSERT(4 * kMaxQuads <= 65535); |
| static const uint16_t kPattern[] = { 0, 1, 2, 0, 2, 3 }; |
| |
| return this->createInstancedIndexBuffer(kPattern, 6, kMaxQuads, 4, fQuadIndexBufferKey); |
| } |
| |
| GrPath* GrResourceProvider::createPath(const SkPath& path, const GrStyle& style) { |
| SkASSERT(this->gpu()->pathRendering()); |
| return this->gpu()->pathRendering()->createPath(path, style); |
| } |
| |
| GrPathRange* GrResourceProvider::createPathRange(GrPathRange::PathGenerator* gen, |
| const GrStyle& style) { |
| SkASSERT(this->gpu()->pathRendering()); |
| return this->gpu()->pathRendering()->createPathRange(gen, style); |
| } |
| |
| GrPathRange* GrResourceProvider::createGlyphs(const SkTypeface* tf, |
| const SkScalerContextEffects& effects, |
| const SkDescriptor* desc, |
| const GrStyle& style) { |
| |
| SkASSERT(this->gpu()->pathRendering()); |
| return this->gpu()->pathRendering()->createGlyphs(tf, effects, desc, style); |
| } |
| |
| GrBuffer* GrResourceProvider::createBuffer(size_t size, GrBufferType intendedType, |
| GrAccessPattern accessPattern, uint32_t flags, |
| const void* data) { |
| if (this->isAbandoned()) { |
| return nullptr; |
| } |
| if (kDynamic_GrAccessPattern != accessPattern) { |
| return this->gpu()->createBuffer(size, intendedType, accessPattern, data); |
| } |
| if (!(flags & kRequireGpuMemory_Flag) && |
| this->gpu()->caps()->preferClientSideDynamicBuffers() && |
| GrBufferTypeIsVertexOrIndex(intendedType) && |
| kDynamic_GrAccessPattern == accessPattern) { |
| return GrBuffer::CreateCPUBacked(this->gpu(), size, intendedType, data); |
| } |
| |
| // bin by pow2 with a reasonable min |
| static const size_t MIN_SIZE = 1 << 12; |
| size_t allocSize = SkTMax(MIN_SIZE, GrNextSizePow2(size)); |
| |
| GrScratchKey key; |
| GrBuffer::ComputeScratchKeyForDynamicVBO(allocSize, intendedType, &key); |
| uint32_t scratchFlags = 0; |
| if (flags & kNoPendingIO_Flag) { |
| scratchFlags = GrResourceCache::kRequireNoPendingIO_ScratchFlag; |
| } else { |
| scratchFlags = GrResourceCache::kPreferNoPendingIO_ScratchFlag; |
| } |
| GrBuffer* buffer = static_cast<GrBuffer*>( |
| this->cache()->findAndRefScratchResource(key, allocSize, scratchFlags)); |
| if (!buffer) { |
| buffer = this->gpu()->createBuffer(allocSize, intendedType, kDynamic_GrAccessPattern); |
| if (!buffer) { |
| return nullptr; |
| } |
| } |
| if (data) { |
| buffer->updateData(data, size); |
| } |
| SkASSERT(!buffer->isCPUBacked()); // We should only cache real VBOs. |
| return buffer; |
| } |
| |
| GrStencilAttachment* GrResourceProvider::attachStencilAttachment(GrRenderTarget* rt) { |
| SkASSERT(rt); |
| if (rt->renderTargetPriv().getStencilAttachment()) { |
| return rt->renderTargetPriv().getStencilAttachment(); |
| } |
| |
| if (!rt->wasDestroyed() && rt->canAttemptStencilAttachment()) { |
| GrUniqueKey sbKey; |
| |
| int width = rt->width(); |
| int height = rt->height(); |
| #if 0 |
| if (this->caps()->oversizedStencilSupport()) { |
| width = SkNextPow2(width); |
| height = SkNextPow2(height); |
| } |
| #endif |
| bool newStencil = false; |
| GrStencilAttachment::ComputeSharedStencilAttachmentKey(width, height, |
| rt->numStencilSamples(), &sbKey); |
| GrStencilAttachment* stencil = static_cast<GrStencilAttachment*>( |
| this->findAndRefResourceByUniqueKey(sbKey)); |
| if (!stencil) { |
| // Need to try and create a new stencil |
| stencil = this->gpu()->createStencilAttachmentForRenderTarget(rt, width, height); |
| if (stencil) { |
| this->assignUniqueKeyToResource(sbKey, stencil); |
| newStencil = true; |
| } |
| } |
| if (rt->renderTargetPriv().attachStencilAttachment(stencil)) { |
| if (newStencil) { |
| // Right now we're clearing the stencil attachment here after it is |
| // attached to a RT for the first time. When we start matching |
| // stencil buffers with smaller color targets this will no longer |
| // be correct because it won't be guaranteed to clear the entire |
| // sb. |
| // We used to clear down in the GL subclass using a special purpose |
| // FBO. But iOS doesn't allow a stencil-only FBO. It reports unsupported |
| // FBO status. |
| this->gpu()->clearStencil(rt); |
| } |
| } |
| } |
| return rt->renderTargetPriv().getStencilAttachment(); |
| } |
| |
| sk_sp<GrRenderTarget> GrResourceProvider::wrapBackendTextureAsRenderTarget( |
| const GrBackendTextureDesc& desc) |
| { |
| if (this->isAbandoned()) { |
| return nullptr; |
| } |
| return this->gpu()->wrapBackendTextureAsRenderTarget(desc); |
| } |
| |
| sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT GrResourceProvider::makeSemaphore() { |
| return fGpu->makeSemaphore(); |
| } |
| |
| void GrResourceProvider::takeOwnershipOfSemaphore(sk_sp<GrSemaphore> semaphore) { |
| semaphore->resetGpu(fGpu); |
| } |
| |
| void GrResourceProvider::releaseOwnershipOfSemaphore(sk_sp<GrSemaphore> semaphore) { |
| semaphore->resetGpu(nullptr); |
| } |
