| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrGpu_DEFINED |
| #define GrGpu_DEFINED |
| |
| #include "include/core/SkPath.h" |
| #include "include/core/SkSurface.h" |
| #include "include/gpu/GrTypes.h" |
| #include "include/private/SkTArray.h" |
| #include "src/core/SkSpan.h" |
| #include "src/core/SkTInternalLList.h" |
| #include "src/gpu/GrAttachment.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrOpsRenderPass.h" |
| #include "src/gpu/GrPixmap.h" |
| #include "src/gpu/GrSwizzle.h" |
| #include "src/gpu/GrTextureProducer.h" |
| #include "src/gpu/GrXferProcessor.h" |
| |
| class GrAttachment; |
| class GrBackendRenderTarget; |
| class GrBackendSemaphore; |
| struct GrContextOptions; |
| class GrDirectContext; |
| class GrGpuBuffer; |
| class GrGLContext; |
| class GrPath; |
| class GrPathRenderer; |
| class GrPathRendererChain; |
| class GrPipeline; |
| class GrGeometryProcessor; |
| class GrRenderTarget; |
| class GrRingBuffer; |
| class GrSemaphore; |
| class GrStagingBufferManager; |
| class GrStencilSettings; |
| class GrSurface; |
| class GrTexture; |
| class GrThreadSafePipelineBuilder; |
| class SkJSONWriter; |
| |
| namespace SkSL { |
| class Compiler; |
| } |
| |
| class GrGpu : public SkRefCnt { |
| public: |
| GrGpu(GrDirectContext* direct); |
| ~GrGpu() override; |
| |
| GrDirectContext* getContext() { return fContext; } |
| const GrDirectContext* getContext() const { return fContext; } |
| |
| /** |
| * Gets the capabilities of the draw target. |
| */ |
| const GrCaps* caps() const { return fCaps.get(); } |
| sk_sp<const GrCaps> refCaps() const { return fCaps; } |
| |
| virtual GrStagingBufferManager* stagingBufferManager() { return nullptr; } |
| |
| virtual GrRingBuffer* uniformsRingBuffer() { return nullptr; } |
| |
| SkSL::Compiler* shaderCompiler() const { return fCompiler.get(); } |
| |
| enum class DisconnectType { |
| // No cleanup should be attempted, immediately cease making backend API calls |
| kAbandon, |
| // Free allocated resources (not known by GrResourceCache) before returning and |
| // ensure no backend backend 3D API calls will be made after disconnect() returns. |
| kCleanup, |
| }; |
| |
| // Called by context when the underlying backend context is already or will be destroyed |
| // before GrDirectContext. |
| virtual void disconnect(DisconnectType); |
| |
| virtual GrThreadSafePipelineBuilder* pipelineBuilder() = 0; |
| virtual sk_sp<GrThreadSafePipelineBuilder> refPipelineBuilder() = 0; |
| |
| // Called by GrDirectContext::isContextLost. Returns true if the backend Gpu object has gotten |
| // into an unrecoverable, lost state. |
| virtual bool isDeviceLost() const { return false; } |
| |
| /** |
| * The GrGpu object normally assumes that no outsider is setting state |
| * within the underlying 3D API's context/device/whatever. This call informs |
| * the GrGpu that the state was modified and it shouldn't make assumptions |
| * about the state. |
| */ |
| void markContextDirty(uint32_t state = kAll_GrBackendState) { fResetBits |= state; } |
| |
| /** |
| * Creates a texture object. If renderable is kYes then the returned texture can |
| * be used as a render target by calling GrTexture::asRenderTarget(). Not all |
| * pixel configs can be used as render targets. Support for configs as textures |
| * or render targets can be checked using GrCaps. |
| * |
| * @param dimensions dimensions of the texture to be created. |
| * @param format the format for the texture (not currently used). |
| * @param renderable should the resulting texture be renderable |
| * @param renderTargetSampleCnt The number of samples to use for rendering if renderable is |
| * kYes. If renderable is kNo then this must be 1. |
| * @param budgeted does this texture count against the resource cache budget? |
| * @param isProtected should the texture be created as protected. |
| * @param texels array of mipmap levels containing texel data to load. |
| * If level i has pixels then it is assumed that its dimensions are |
| * max(1, floor(dimensions.fWidth / 2)) by |
| * max(1, floor(dimensions.fHeight / 2)). |
| * If texels[i].fPixels == nullptr for all i <= mipLevelCount or |
| * mipLevelCount is 0 then the texture's contents are uninitialized. |
| * If a level has non-null pixels, its row bytes must be a multiple of the |
| * config's bytes-per-pixel. The row bytes must be tight to the |
| * level width if !caps->writePixelsRowBytesSupport(). |
| * If mipLevelCount > 1 and texels[i].fPixels != nullptr for any i > 0 |
| * then all levels must have non-null pixels. All levels must have |
| * non-null pixels if GrCaps::createTextureMustSpecifyAllLevels() is true. |
| * @param textureColorType The color type interpretation of the texture for the purpose of |
| * of uploading texel data. |
| * @param srcColorType The color type of data in texels[]. |
| * @param texelLevelCount the number of levels in 'texels'. May be 0, 1, or |
| * floor(max((log2(dimensions.fWidth), log2(dimensions.fHeight)))). It |
| * must be the latter if GrCaps::createTextureMustSpecifyAllLevels() is |
| * true. |
| * @return The texture object if successful, otherwise nullptr. |
| */ |
| sk_sp<GrTexture> createTexture(SkISize dimensions, |
| const GrBackendFormat& format, |
| GrRenderable renderable, |
| int renderTargetSampleCnt, |
| SkBudgeted budgeted, |
| GrProtected isProtected, |
| GrColorType textureColorType, |
| GrColorType srcColorType, |
| const GrMipLevel texels[], |
| int texelLevelCount); |
| |
| /** |
| * Simplified createTexture() interface for when there is no initial texel data to upload. |
| */ |
| sk_sp<GrTexture> createTexture(SkISize dimensions, |
| const GrBackendFormat& format, |
| GrRenderable renderable, |
| int renderTargetSampleCnt, |
| GrMipmapped mipMapped, |
| SkBudgeted budgeted, |
| GrProtected isProtected); |
| |
| sk_sp<GrTexture> createCompressedTexture(SkISize dimensions, |
| const GrBackendFormat& format, |
| SkBudgeted budgeted, |
| GrMipmapped mipMapped, |
| GrProtected isProtected, |
| const void* data, size_t dataSize); |
| |
| /** |
| * Implements GrResourceProvider::wrapBackendTexture |
| */ |
| sk_sp<GrTexture> wrapBackendTexture(const GrBackendTexture&, |
| GrWrapOwnership, |
| GrWrapCacheable, |
| GrIOType); |
| |
| sk_sp<GrTexture> wrapCompressedBackendTexture(const GrBackendTexture&, |
| GrWrapOwnership, |
| GrWrapCacheable); |
| |
| /** |
| * Implements GrResourceProvider::wrapRenderableBackendTexture |
| */ |
| sk_sp<GrTexture> wrapRenderableBackendTexture(const GrBackendTexture&, |
| int sampleCnt, |
| GrWrapOwnership, |
| GrWrapCacheable); |
| |
| /** |
| * Implements GrResourceProvider::wrapBackendRenderTarget |
| */ |
| sk_sp<GrRenderTarget> wrapBackendRenderTarget(const GrBackendRenderTarget&); |
| |
| /** |
| * Implements GrResourceProvider::wrapVulkanSecondaryCBAsRenderTarget |
| */ |
| sk_sp<GrRenderTarget> wrapVulkanSecondaryCBAsRenderTarget(const SkImageInfo&, |
| const GrVkDrawableInfo&); |
| |
| /** |
| * Creates a buffer in GPU memory. For a client-side buffer use GrBuffer::CreateCPUBacked. |
| * |
| * @param size size of buffer to create. |
| * @param intendedType hint to the graphics subsystem about what the buffer will be used for. |
| * @param accessPattern hint to the graphics subsystem about how the data will be accessed. |
| * @param data optional data with which to initialize the buffer. |
| * |
| * @return the buffer if successful, otherwise nullptr. |
| */ |
| sk_sp<GrGpuBuffer> createBuffer(size_t size, GrGpuBufferType intendedType, |
| GrAccessPattern accessPattern, const void* data = nullptr); |
| |
| /** |
| * Resolves MSAA. The resolveRect must already be in the native destination space. |
| */ |
| void resolveRenderTarget(GrRenderTarget*, const SkIRect& resolveRect); |
| |
| /** |
| * Uses the base of the texture to recompute the contents of the other levels. |
| */ |
| bool regenerateMipMapLevels(GrTexture*); |
| |
| /** |
| * If the backend API has stateful texture bindings, this resets them back to defaults. |
| */ |
| void resetTextureBindings(); |
| |
| /** |
| * Reads a rectangle of pixels from a render target. No sRGB/linear conversions are performed. |
| * |
| * @param surface The surface to read from |
| * @param left left edge of the rectangle to read (inclusive) |
| * @param top top edge of the rectangle to read (inclusive) |
| * @param width width of rectangle to read in pixels. |
| * @param height height of rectangle to read in pixels. |
| * @param surfaceColorType the color type for this use of the surface. |
| * @param dstColorType the color type of the destination buffer. |
| * @param buffer memory to read the rectangle into. |
| * @param rowBytes the number of bytes between consecutive rows. Must be a multiple of |
| * dstColorType's bytes-per-pixel. Must be tight to width if |
| * !caps->readPixelsRowBytesSupport(). |
| * |
| * @return true if the read succeeded, false if not. The read can fail |
| * because of the surface doesn't support reading, the color type |
| * is not allowed for the format of the surface or if the rectangle |
| * read is not contained in the surface. |
| */ |
| bool readPixels(GrSurface* surface, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType dstColorType, void* buffer, |
| size_t rowBytes); |
| |
| /** |
| * Updates the pixels in a rectangle of a surface. No sRGB/linear conversions are performed. |
| * |
| * @param surface The surface to write to. |
| * @param left left edge of the rectangle to write (inclusive) |
| * @param top top edge of the rectangle to write (inclusive) |
| * @param width width of rectangle to write in pixels. |
| * @param height height of rectangle to write in pixels. |
| * @param surfaceColorType the color type for this use of the surface. |
| * @param srcColorType the color type of the source buffer. |
| * @param texels array of mipmap levels containing texture data. Row bytes must be a |
| * multiple of srcColorType's bytes-per-pixel. Must be tight to level |
| * width if !caps->writePixelsRowBytesSupport(). |
| * @param mipLevelCount number of levels in 'texels' |
| * @param prepForTexSampling After doing write pixels should the surface be prepared for texture |
| * sampling. This is currently only used by Vulkan for inline uploads |
| * to set that layout back to sampled after doing the upload. Inline |
| * uploads currently can happen between draws in a single op so it is |
| * not trivial to break up the GrOpsTask into two tasks when we see |
| * an inline upload. However, once we are able to support doing that |
| * we can remove this parameter. |
| * |
| * @return true if the write succeeded, false if not. The read can fail |
| * because of the surface doesn't support writing (e.g. read only), |
| * the color type is not allowed for the format of the surface or |
| * if the rectangle written is not contained in the surface. |
| */ |
| bool writePixels(GrSurface* surface, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType srcColorType, |
| const GrMipLevel texels[], int mipLevelCount, bool prepForTexSampling = false); |
| |
| /** |
| * Helper for the case of a single level. |
| */ |
| bool writePixels(GrSurface* surface, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType srcColorType, const void* buffer, |
| size_t rowBytes, bool prepForTexSampling = false) { |
| GrMipLevel mipLevel = {buffer, rowBytes, nullptr}; |
| return this->writePixels(surface, left, top, width, height, surfaceColorType, srcColorType, |
| &mipLevel, 1, prepForTexSampling); |
| } |
| |
| /** |
| * Updates the pixels in a rectangle of a texture using a buffer. If the texture is MIP mapped, |
| * the base level is written to. |
| * |
| * @param texture The texture to write to. |
| * @param left left edge of the rectangle to write (inclusive) |
| * @param top top edge of the rectangle to write (inclusive) |
| * @param width width of rectangle to write in pixels. |
| * @param height height of rectangle to write in pixels. |
| * @param textureColorType the color type for this use of the surface. |
| * @param bufferColorType the color type of the transfer buffer's pixel data |
| * @param transferBuffer GrBuffer to read pixels from (type must be "kXferCpuToGpu") |
| * @param offset offset from the start of the buffer |
| * @param rowBytes number of bytes between consecutive rows in the buffer. Must be a |
| * multiple of bufferColorType's bytes-per-pixel. Must be tight to width |
| * if !caps->writePixelsRowBytesSupport(). |
| */ |
| bool transferPixelsTo(GrTexture* texture, int left, int top, int width, int height, |
| GrColorType textureColorType, GrColorType bufferColorType, |
| sk_sp<GrGpuBuffer> transferBuffer, size_t offset, size_t rowBytes); |
| |
| /** |
| * Reads the pixels from a rectangle of a surface into a buffer. Use |
| * GrCaps::SupportedRead::fOffsetAlignmentForTransferBuffer to determine the requirements for |
| * the buffer offset alignment. If the surface is a MIP mapped texture, the base level is read. |
| * |
| * If successful the row bytes in the buffer is always: |
| * GrColorTypeBytesPerPixel(bufferColorType) * width |
| * |
| * Asserts that the caller has passed a properly aligned offset and that the buffer is |
| * large enough to hold the result |
| * |
| * @param surface The surface to read from. |
| * @param left left edge of the rectangle to read (inclusive) |
| * @param top top edge of the rectangle to read (inclusive) |
| * @param width width of rectangle to read in pixels. |
| * @param height height of rectangle to read in pixels. |
| * @param surfaceColorType the color type for this use of the surface. |
| * @param bufferColorType the color type of the transfer buffer's pixel data |
| * @param transferBuffer GrBuffer to write pixels to (type must be "kXferGpuToCpu") |
| * @param offset offset from the start of the buffer |
| */ |
| bool transferPixelsFrom(GrSurface* surface, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType bufferColorType, |
| sk_sp<GrGpuBuffer> transferBuffer, size_t offset); |
| |
| // Called to perform a surface to surface copy. Fallbacks to issuing a draw from the src to dst |
| // take place at higher levels and this function implement faster copy paths. The rect |
| // and point are pre-clipped. The src rect and implied dst rect are guaranteed to be within the |
| // src/dst bounds and non-empty. They must also be in their exact device space coords, including |
| // already being transformed for origin if need be. If canDiscardOutsideDstRect is set to true |
| // then we don't need to preserve any data on the dst surface outside of the copy. |
| bool copySurface(GrSurface* dst, GrSurface* src, const SkIRect& srcRect, |
| const SkIPoint& dstPoint); |
| |
| // Returns a GrOpsRenderPass which GrOpsTasks send draw commands to instead of directly |
| // to the Gpu object. The 'bounds' rect is the content rect of the renderTarget. |
| // If a 'stencil' is provided it will be the one bound to 'renderTarget'. If one is not |
| // provided but 'renderTarget' has a stencil buffer then that is a signal that the |
| // render target's stencil buffer should be ignored. |
| GrOpsRenderPass* getOpsRenderPass(GrRenderTarget* renderTarget, |
| bool useMSAASurface, |
| GrAttachment* stencil, |
| GrSurfaceOrigin, |
| const SkIRect& bounds, |
| const GrOpsRenderPass::LoadAndStoreInfo&, |
| const GrOpsRenderPass::StencilLoadAndStoreInfo&, |
| const SkTArray<GrSurfaceProxy*, true>& sampledProxies, |
| GrXferBarrierFlags renderPassXferBarriers); |
| |
| // Called by GrDrawingManager when flushing. |
| // Provides a hook for post-flush actions (e.g. Vulkan command buffer submits). This will also |
| // insert any numSemaphore semaphores on the gpu and set the backendSemaphores to match the |
| // inserted semaphores. |
| void executeFlushInfo(SkSpan<GrSurfaceProxy*>, |
| SkSurface::BackendSurfaceAccess access, |
| const GrFlushInfo&, |
| const GrBackendSurfaceMutableState* newState); |
| |
| bool submitToGpu(bool syncCpu); |
| |
| virtual void submit(GrOpsRenderPass*) = 0; |
| |
| virtual GrFence SK_WARN_UNUSED_RESULT insertFence() = 0; |
| virtual bool waitFence(GrFence) = 0; |
| virtual void deleteFence(GrFence) const = 0; |
| |
| virtual std::unique_ptr<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore( |
| bool isOwned = true) = 0; |
| virtual std::unique_ptr<GrSemaphore> wrapBackendSemaphore(const GrBackendSemaphore& semaphore, |
| GrResourceProvider::SemaphoreWrapType wrapType, GrWrapOwnership ownership) = 0; |
| virtual void insertSemaphore(GrSemaphore* semaphore) = 0; |
| virtual void waitSemaphore(GrSemaphore* semaphore) = 0; |
| |
| virtual void addFinishedProc(GrGpuFinishedProc finishedProc, |
| GrGpuFinishedContext finishedContext) = 0; |
| virtual void checkFinishProcs() = 0; |
| virtual void finishOutstandingGpuWork() = 0; |
| |
| virtual void takeOwnershipOfBuffer(sk_sp<GrGpuBuffer>) {} |
| |
| /** |
| * Checks if we detected an OOM from the underlying 3D API and if so returns true and resets |
| * the internal OOM state to false. Otherwise, returns false. |
| */ |
| bool checkAndResetOOMed(); |
| |
| /** |
| * Put this texture in a safe and known state for use across multiple contexts. Depending on |
| * the backend, this may return a GrSemaphore. If so, other contexts should wait on that |
| * semaphore before using this texture. |
| */ |
| virtual std::unique_ptr<GrSemaphore> prepareTextureForCrossContextUsage(GrTexture*) = 0; |
| |
| /** |
| * Frees any backend specific objects that are not currently in use by the GPU. This is called |
| * when the client is trying to free up as much GPU memory as possible. We will not release |
| * resources connected to programs/pipelines since the cost to recreate those is significantly |
| * higher that other resources. |
| */ |
| virtual void releaseUnlockedBackendObjects() {} |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // Debugging and Stats |
| |
| class Stats { |
| public: |
| #if GR_GPU_STATS |
| Stats() = default; |
| |
| void reset() { *this = {}; } |
| |
| int textureCreates() const { return fTextureCreates; } |
| void incTextureCreates() { fTextureCreates++; } |
| |
| int textureUploads() const { return fTextureUploads; } |
| void incTextureUploads() { fTextureUploads++; } |
| |
| int transfersToTexture() const { return fTransfersToTexture; } |
| void incTransfersToTexture() { fTransfersToTexture++; } |
| |
| int transfersFromSurface() const { return fTransfersFromSurface; } |
| void incTransfersFromSurface() { fTransfersFromSurface++; } |
| |
| int stencilAttachmentCreates() const { return fStencilAttachmentCreates; } |
| void incStencilAttachmentCreates() { fStencilAttachmentCreates++; } |
| |
| int msaaAttachmentCreates() const { return fMSAAAttachmentCreates; } |
| void incMSAAAttachmentCreates() { fMSAAAttachmentCreates++; } |
| |
| int numDraws() const { return fNumDraws; } |
| void incNumDraws() { fNumDraws++; } |
| |
| int numFailedDraws() const { return fNumFailedDraws; } |
| void incNumFailedDraws() { ++fNumFailedDraws; } |
| |
| int numSubmitToGpus() const { return fNumSubmitToGpus; } |
| void incNumSubmitToGpus() { ++fNumSubmitToGpus; } |
| |
| int numScratchTexturesReused() const { return fNumScratchTexturesReused; } |
| void incNumScratchTexturesReused() { ++fNumScratchTexturesReused; } |
| |
| int numScratchMSAAAttachmentsReused() const { return fNumScratchMSAAAttachmentsReused; } |
| void incNumScratchMSAAAttachmentsReused() { ++fNumScratchMSAAAttachmentsReused; } |
| |
| int renderPasses() const { return fRenderPasses; } |
| void incRenderPasses() { fRenderPasses++; } |
| |
| int numReorderedDAGsOverBudget() const { return fNumReorderedDAGsOverBudget; } |
| void incNumReorderedDAGsOverBudget() { fNumReorderedDAGsOverBudget++; } |
| |
| #if GR_TEST_UTILS |
| void dump(SkString*); |
| void dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values); |
| #endif |
| private: |
| int fTextureCreates = 0; |
| int fTextureUploads = 0; |
| int fTransfersToTexture = 0; |
| int fTransfersFromSurface = 0; |
| int fStencilAttachmentCreates = 0; |
| int fMSAAAttachmentCreates = 0; |
| int fNumDraws = 0; |
| int fNumFailedDraws = 0; |
| int fNumSubmitToGpus = 0; |
| int fNumScratchTexturesReused = 0; |
| int fNumScratchMSAAAttachmentsReused = 0; |
| int fRenderPasses = 0; |
| int fNumReorderedDAGsOverBudget = 0; |
| |
| #else // !GR_GPU_STATS |
| |
| #if GR_TEST_UTILS |
| void dump(SkString*) {} |
| void dumpKeyValuePairs(SkTArray<SkString>*, SkTArray<double>*) {} |
| #endif |
| void incTextureCreates() {} |
| void incTextureUploads() {} |
| void incTransfersToTexture() {} |
| void incTransfersFromSurface() {} |
| void incStencilAttachmentCreates() {} |
| void incMSAAAttachmentCreates() {} |
| void incNumDraws() {} |
| void incNumFailedDraws() {} |
| void incNumSubmitToGpus() {} |
| void incNumScratchTexturesReused() {} |
| void incNumScratchMSAAAttachmentsReused() {} |
| void incRenderPasses() {} |
| void incNumReorderedDAGsOverBudget() {} |
| #endif |
| }; |
| |
| Stats* stats() { return &fStats; } |
| void dumpJSON(SkJSONWriter*) const; |
| |
| |
| /** |
| * Creates a texture directly in the backend API without wrapping it in a GrTexture. |
| * Must be matched with a call to deleteBackendTexture(). |
| * |
| * If data is null the texture is uninitialized. |
| * |
| * If data represents a color then all texture levels are cleared to that color. |
| * |
| * If data represents pixmaps then it must have a either one pixmap or, if mipmapping |
| * is specified, a complete MIP hierarchy of pixmaps. Additionally, if provided, the mip |
| * levels must be sized correctly according to the MIP sizes implied by dimensions. They |
| * must all have the same color type and that color type must be compatible with the |
| * texture format. |
| */ |
| GrBackendTexture createBackendTexture(SkISize dimensions, |
| const GrBackendFormat&, |
| GrRenderable, |
| GrMipmapped, |
| GrProtected); |
| |
| bool clearBackendTexture(const GrBackendTexture&, |
| sk_sp<GrRefCntedCallback> finishedCallback, |
| std::array<float, 4> color); |
| |
| /** |
| * Same as the createBackendTexture case except compressed backend textures can |
| * never be renderable. |
| */ |
| GrBackendTexture createCompressedBackendTexture(SkISize dimensions, |
| const GrBackendFormat&, |
| GrMipmapped, |
| GrProtected); |
| |
| bool updateCompressedBackendTexture(const GrBackendTexture&, |
| sk_sp<GrRefCntedCallback> finishedCallback, |
| const void* data, |
| size_t length); |
| |
| virtual bool setBackendTextureState(const GrBackendTexture&, |
| const GrBackendSurfaceMutableState&, |
| GrBackendSurfaceMutableState* previousState, |
| sk_sp<GrRefCntedCallback> finishedCallback) { |
| return false; |
| } |
| |
| virtual bool setBackendRenderTargetState(const GrBackendRenderTarget&, |
| const GrBackendSurfaceMutableState&, |
| GrBackendSurfaceMutableState* previousState, |
| sk_sp<GrRefCntedCallback> finishedCallback) { |
| return false; |
| } |
| |
| /** |
| * Frees a texture created by createBackendTexture(). If ownership of the backend |
| * texture has been transferred to a context using adopt semantics this should not be called. |
| */ |
| virtual void deleteBackendTexture(const GrBackendTexture&) = 0; |
| |
| /** |
| * In this case we have a program descriptor and a program info but no render target. |
| */ |
| virtual bool compile(const GrProgramDesc&, const GrProgramInfo&) = 0; |
| |
| virtual bool precompileShader(const SkData& key, const SkData& data) { return false; } |
| |
| #if GR_TEST_UTILS |
| /** Check a handle represents an actual texture in the backend API that has not been freed. */ |
| virtual bool isTestingOnlyBackendTexture(const GrBackendTexture&) const = 0; |
| |
| /** |
| * Creates a GrBackendRenderTarget that can be wrapped using |
| * SkSurface::MakeFromBackendRenderTarget. Ideally this is a non-textureable allocation to |
| * differentiate from testing with SkSurface::MakeFromBackendTexture. When sampleCnt > 1 this |
| * is used to test client wrapped allocations with MSAA where Skia does not allocate a separate |
| * buffer for resolving. If the color is non-null the backing store should be cleared to the |
| * passed in color. |
| */ |
| virtual GrBackendRenderTarget createTestingOnlyBackendRenderTarget( |
| SkISize dimensions, |
| GrColorType, |
| int sampleCount = 1, |
| GrProtected = GrProtected::kNo) = 0; |
| |
| /** |
| * Deletes a GrBackendRenderTarget allocated with the above. Synchronization to make this safe |
| * is up to the caller. |
| */ |
| virtual void deleteTestingOnlyBackendRenderTarget(const GrBackendRenderTarget&) = 0; |
| |
| // This is only to be used in GL-specific tests. |
| virtual const GrGLContext* glContextForTesting() const { return nullptr; } |
| |
| // This is only to be used by testing code |
| virtual void resetShaderCacheForTesting() const {} |
| |
| /** |
| * Inserted as a pair around a block of code to do a GPU frame capture. |
| * Currently only works with the Metal backend. |
| */ |
| virtual void testingOnly_startCapture() {} |
| virtual void testingOnly_endCapture() {} |
| #endif |
| |
| // width and height may be larger than rt (if underlying API allows it). |
| // Returns nullptr if compatible sb could not be created, otherwise the caller owns the ref on |
| // the GrAttachment. |
| virtual sk_sp<GrAttachment> makeStencilAttachmentForRenderTarget(const GrRenderTarget*, |
| SkISize dimensions, |
| int numStencilSamples) = 0; |
| |
| virtual GrBackendFormat getPreferredStencilFormat(const GrBackendFormat&) = 0; |
| |
| // Creates an MSAA surface to be used as an MSAA attachment on a framebuffer. |
| virtual sk_sp<GrAttachment> makeMSAAAttachment(SkISize dimensions, |
| const GrBackendFormat& format, |
| int numSamples, |
| GrProtected isProtected) = 0; |
| |
| void handleDirtyContext() { |
| if (fResetBits) { |
| this->resetContext(); |
| } |
| } |
| |
| virtual void storeVkPipelineCacheData() {} |
| |
| // http://skbug.com/9739 |
| virtual void insertManualFramebufferBarrier() { |
| SkASSERT(!this->caps()->requiresManualFBBarrierAfterTessellatedStencilDraw()); |
| SK_ABORT("Manual framebuffer barrier not supported."); |
| } |
| |
| // Called before certain draws in order to guarantee coherent results from dst reads. |
| virtual void xferBarrier(GrRenderTarget*, GrXferBarrierType) = 0; |
| |
| protected: |
| static bool CompressedDataIsCorrect(SkISize dimensions, |
| SkImage::CompressionType, |
| GrMipmapped, |
| const void* data, |
| size_t length); |
| |
| // Handles cases where a surface will be updated without a call to flushRenderTarget. |
| void didWriteToSurface(GrSurface* surface, GrSurfaceOrigin origin, const SkIRect* bounds, |
| uint32_t mipLevels = 1) const; |
| |
| void setOOMed() { fOOMed = true; } |
| |
| Stats fStats; |
| |
| // Subclass must call this to initialize caps & compiler in its constructor. |
| void initCapsAndCompiler(sk_sp<const GrCaps> caps); |
| |
| private: |
| virtual GrBackendTexture onCreateBackendTexture(SkISize dimensions, |
| const GrBackendFormat&, |
| GrRenderable, |
| GrMipmapped, |
| GrProtected) = 0; |
| |
| virtual GrBackendTexture onCreateCompressedBackendTexture( |
| SkISize dimensions, const GrBackendFormat&, GrMipmapped, GrProtected) = 0; |
| |
| virtual bool onClearBackendTexture(const GrBackendTexture&, |
| sk_sp<GrRefCntedCallback> finishedCallback, |
| std::array<float, 4> color) = 0; |
| |
| virtual bool onUpdateCompressedBackendTexture(const GrBackendTexture&, |
| sk_sp<GrRefCntedCallback> finishedCallback, |
| const void* data, |
| size_t length) = 0; |
| |
| // called when the 3D context state is unknown. Subclass should emit any |
| // assumed 3D context state and dirty any state cache. |
| virtual void onResetContext(uint32_t resetBits) {} |
| |
| // Implementation of resetTextureBindings. |
| virtual void onResetTextureBindings() {} |
| |
| // overridden by backend-specific derived class to create objects. |
| // Texture size, renderablility, format support, sample count will have already been validated |
| // in base class before onCreateTexture is called. |
| // If the ith bit is set in levelClearMask then the ith MIP level should be cleared. |
| virtual sk_sp<GrTexture> onCreateTexture(SkISize dimensions, |
| const GrBackendFormat&, |
| GrRenderable, |
| int renderTargetSampleCnt, |
| SkBudgeted, |
| GrProtected, |
| int mipLevelCoont, |
| uint32_t levelClearMask) = 0; |
| virtual sk_sp<GrTexture> onCreateCompressedTexture(SkISize dimensions, |
| const GrBackendFormat&, |
| SkBudgeted, |
| GrMipmapped, |
| GrProtected, |
| const void* data, size_t dataSize) = 0; |
| virtual sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&, |
| GrWrapOwnership, |
| GrWrapCacheable, |
| GrIOType) = 0; |
| |
| virtual sk_sp<GrTexture> onWrapCompressedBackendTexture(const GrBackendTexture&, |
| GrWrapOwnership, |
| GrWrapCacheable) = 0; |
| |
| virtual sk_sp<GrTexture> onWrapRenderableBackendTexture(const GrBackendTexture&, |
| int sampleCnt, |
| GrWrapOwnership, |
| GrWrapCacheable) = 0; |
| virtual sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTarget&) = 0; |
| virtual sk_sp<GrRenderTarget> onWrapVulkanSecondaryCBAsRenderTarget(const SkImageInfo&, |
| const GrVkDrawableInfo&); |
| |
| virtual sk_sp<GrGpuBuffer> onCreateBuffer(size_t size, GrGpuBufferType intendedType, |
| GrAccessPattern, const void* data) = 0; |
| |
| // overridden by backend-specific derived class to perform the surface read |
| virtual bool onReadPixels(GrSurface*, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType dstColorType, void* buffer, |
| size_t rowBytes) = 0; |
| |
| // overridden by backend-specific derived class to perform the surface write |
| virtual bool onWritePixels(GrSurface*, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType srcColorType, |
| const GrMipLevel texels[], int mipLevelCount, |
| bool prepForTexSampling) = 0; |
| |
| // overridden by backend-specific derived class to perform the texture transfer |
| virtual bool onTransferPixelsTo(GrTexture*, int left, int top, int width, int height, |
| GrColorType textiueColorType, GrColorType bufferColorType, |
| sk_sp<GrGpuBuffer> transferBuffer, size_t offset, |
| size_t rowBytes) = 0; |
| // overridden by backend-specific derived class to perform the surface transfer |
| virtual bool onTransferPixelsFrom(GrSurface*, int left, int top, int width, int height, |
| GrColorType surfaceColorType, GrColorType bufferColorType, |
| sk_sp<GrGpuBuffer> transferBuffer, |
| size_t offset) = 0; |
| |
| // overridden by backend-specific derived class to perform the resolve |
| virtual void onResolveRenderTarget(GrRenderTarget* target, const SkIRect& resolveRect) = 0; |
| |
| // overridden by backend specific derived class to perform mip map level regeneration. |
| virtual bool onRegenerateMipMapLevels(GrTexture*) = 0; |
| |
| // overridden by backend specific derived class to perform the copy surface |
| virtual bool onCopySurface(GrSurface* dst, GrSurface* src, const SkIRect& srcRect, |
| const SkIPoint& dstPoint) = 0; |
| |
| virtual GrOpsRenderPass* onGetOpsRenderPass( |
| GrRenderTarget* renderTarget, |
| bool useMSAASurface, |
| GrAttachment* stencil, |
| GrSurfaceOrigin, |
| const SkIRect& bounds, |
| const GrOpsRenderPass::LoadAndStoreInfo&, |
| const GrOpsRenderPass::StencilLoadAndStoreInfo&, |
| const SkTArray<GrSurfaceProxy*, true>& sampledProxies, |
| GrXferBarrierFlags renderPassXferBarriers) = 0; |
| |
| virtual void prepareSurfacesForBackendAccessAndStateUpdates( |
| SkSpan<GrSurfaceProxy*> proxies, |
| SkSurface::BackendSurfaceAccess access, |
| const GrBackendSurfaceMutableState* newState) {} |
| |
| virtual bool onSubmitToGpu(bool syncCpu) = 0; |
| |
| void reportSubmitHistograms(); |
| virtual void onReportSubmitHistograms() {} |
| |
| #ifdef SK_ENABLE_DUMP_GPU |
| virtual void onDumpJSON(SkJSONWriter*) const {} |
| #endif |
| |
| sk_sp<GrTexture> createTextureCommon(SkISize, |
| const GrBackendFormat&, |
| GrRenderable, |
| int renderTargetSampleCnt, |
| SkBudgeted, |
| GrProtected, |
| int mipLevelCnt, |
| uint32_t levelClearMask); |
| |
| void resetContext() { |
| this->onResetContext(fResetBits); |
| fResetBits = 0; |
| } |
| |
| void callSubmittedProcs(bool success); |
| |
| sk_sp<const GrCaps> fCaps; |
| // Compiler used for compiling SkSL into backend shader code. We only want to create the |
| // compiler once, as there is significant overhead to the first compile. |
| std::unique_ptr<SkSL::Compiler> fCompiler; |
| |
| uint32_t fResetBits; |
| // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu. |
| GrDirectContext* fContext; |
| |
| struct SubmittedProc { |
| SubmittedProc(GrGpuSubmittedProc proc, GrGpuSubmittedContext context) |
| : fProc(proc), fContext(context) {} |
| |
| GrGpuSubmittedProc fProc; |
| GrGpuSubmittedContext fContext; |
| }; |
| SkSTArray<4, SubmittedProc> fSubmittedProcs; |
| |
| bool fOOMed = false; |
| |
| #if SK_HISTOGRAMS_ENABLED |
| int fCurrentSubmitRenderPassCount = 0; |
| #endif |
| |
| friend class GrPathRendering; |
| using INHERITED = SkRefCnt; |
| }; |
| |
| #endif |
