| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #include "GrGpu.h" |
| |
| #include "GrBuffer.h" |
| #include "GrCaps.h" |
| #include "GrContext.h" |
| #include "GrGpuResourcePriv.h" |
| #include "GrMesh.h" |
| #include "GrPathRendering.h" |
| #include "GrPipeline.h" |
| #include "GrResourceCache.h" |
| #include "GrResourceProvider.h" |
| #include "GrRenderTargetPriv.h" |
| #include "GrStencilAttachment.h" |
| #include "GrSurfacePriv.h" |
| #include "GrTexturePriv.h" |
| #include "SkMathPriv.h" |
| |
| GrMesh& GrMesh::operator =(const GrMesh& di) { |
| fPrimitiveType = di.fPrimitiveType; |
| fStartVertex = di.fStartVertex; |
| fStartIndex = di.fStartIndex; |
| fVertexCount = di.fVertexCount; |
| fIndexCount = di.fIndexCount; |
| |
| fInstanceCount = di.fInstanceCount; |
| fVerticesPerInstance = di.fVerticesPerInstance; |
| fIndicesPerInstance = di.fIndicesPerInstance; |
| fMaxInstancesPerDraw = di.fMaxInstancesPerDraw; |
| |
| fVertexBuffer.reset(di.vertexBuffer()); |
| fIndexBuffer.reset(di.indexBuffer()); |
| |
| return *this; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| GrGpu::GrGpu(GrContext* context) |
| : fResetTimestamp(kExpiredTimestamp+1) |
| , fResetBits(kAll_GrBackendState) |
| , fMultisampleSpecsAllocator(1) |
| , fContext(context) { |
| } |
| |
| GrGpu::~GrGpu() {} |
| |
| void GrGpu::disconnect(DisconnectType) {} |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| bool GrGpu::makeCopyForTextureParams(int width, int height, const GrTextureParams& textureParams, |
| GrTextureProducer::CopyParams* copyParams) const { |
| const GrCaps& caps = *this->caps(); |
| if (textureParams.isTiled() && !caps.npotTextureTileSupport() && |
| (!SkIsPow2(width) || !SkIsPow2(height))) { |
| copyParams->fWidth = GrNextPow2(width); |
| copyParams->fHeight = GrNextPow2(height); |
| switch (textureParams.filterMode()) { |
| case GrTextureParams::kNone_FilterMode: |
| copyParams->fFilter = GrTextureParams::kNone_FilterMode; |
| break; |
| case GrTextureParams::kBilerp_FilterMode: |
| case GrTextureParams::kMipMap_FilterMode: |
| // We are only ever scaling up so no reason to ever indicate kMipMap. |
| copyParams->fFilter = GrTextureParams::kBilerp_FilterMode; |
| break; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| static GrSurfaceOrigin resolve_origin(GrSurfaceOrigin origin, bool renderTarget) { |
| // By default, GrRenderTargets are GL's normal orientation so that they |
| // can be drawn to by the outside world without the client having |
| // to render upside down. |
| if (kDefault_GrSurfaceOrigin == origin) { |
| return renderTarget ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin; |
| } else { |
| return origin; |
| } |
| } |
| |
| /** |
| * Prior to creating a texture, make sure the type of texture being created is |
| * supported by calling check_texture_creation_params. |
| * |
| * @param caps The capabilities of the GL device. |
| * @param desc The descriptor of the texture to create. |
| * @param isRT Indicates if the texture can be a render target. |
| */ |
| static bool check_texture_creation_params(const GrCaps& caps, const GrSurfaceDesc& desc, |
| bool* isRT, const SkTArray<GrMipLevel>& texels) { |
| if (!caps.isConfigTexturable(desc.fConfig)) { |
| return false; |
| } |
| |
| *isRT = SkToBool(desc.fFlags & kRenderTarget_GrSurfaceFlag); |
| if (*isRT && !caps.isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) { |
| return false; |
| } |
| |
| // We currently do not support multisampled textures |
| if (!*isRT && desc.fSampleCnt > 0) { |
| return false; |
| } |
| |
| if (*isRT) { |
| int maxRTSize = caps.maxRenderTargetSize(); |
| if (desc.fWidth > maxRTSize || desc.fHeight > maxRTSize) { |
| return false; |
| } |
| } else { |
| int maxSize = caps.maxTextureSize(); |
| if (desc.fWidth > maxSize || desc.fHeight > maxSize) { |
| return false; |
| } |
| } |
| |
| for (int i = 0; i < texels.count(); ++i) { |
| if (!texels[i].fPixels) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| GrTexture* GrGpu::createTexture(const GrSurfaceDesc& origDesc, SkBudgeted budgeted, |
| const SkTArray<GrMipLevel>& texels) { |
| GrSurfaceDesc desc = origDesc; |
| |
| const GrCaps* caps = this->caps(); |
| bool isRT = false; |
| bool textureCreationParamsValid = check_texture_creation_params(*caps, desc, &isRT, texels); |
| if (!textureCreationParamsValid) { |
| return nullptr; |
| } |
| |
| desc.fSampleCnt = SkTMin(desc.fSampleCnt, caps->maxSampleCount()); |
| // Attempt to catch un- or wrongly intialized sample counts; |
| SkASSERT(desc.fSampleCnt >= 0 && desc.fSampleCnt <= 64); |
| |
| desc.fOrigin = resolve_origin(desc.fOrigin, isRT); |
| |
| GrTexture* tex = nullptr; |
| |
| if (GrPixelConfigIsCompressed(desc.fConfig)) { |
| // We shouldn't be rendering into this |
| SkASSERT(!isRT); |
| SkASSERT(0 == desc.fSampleCnt); |
| |
| if (!caps->npotTextureTileSupport() && |
| (!SkIsPow2(desc.fWidth) || !SkIsPow2(desc.fHeight))) { |
| return nullptr; |
| } |
| |
| this->handleDirtyContext(); |
| tex = this->onCreateCompressedTexture(desc, budgeted, texels); |
| } else { |
| this->handleDirtyContext(); |
| tex = this->onCreateTexture(desc, budgeted, texels); |
| } |
| if (tex) { |
| if (!caps->reuseScratchTextures() && !isRT) { |
| tex->resourcePriv().removeScratchKey(); |
| } |
| fStats.incTextureCreates(); |
| if (!texels.empty()) { |
| if (texels[0].fPixels) { |
| fStats.incTextureUploads(); |
| } |
| } |
| } |
| return tex; |
| } |
| |
| GrTexture* GrGpu::wrapBackendTexture(const GrBackendTextureDesc& desc, GrWrapOwnership ownership) { |
| this->handleDirtyContext(); |
| if (!this->caps()->isConfigTexturable(desc.fConfig)) { |
| return nullptr; |
| } |
| if ((desc.fFlags & kRenderTarget_GrBackendTextureFlag) && |
| !this->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) { |
| return nullptr; |
| } |
| int maxSize = this->caps()->maxTextureSize(); |
| if (desc.fWidth > maxSize || desc.fHeight > maxSize) { |
| return nullptr; |
| } |
| GrTexture* tex = this->onWrapBackendTexture(desc, ownership); |
| if (nullptr == tex) { |
| return nullptr; |
| } |
| // TODO: defer this and attach dynamically |
| GrRenderTarget* tgt = tex->asRenderTarget(); |
| if (tgt && !fContext->resourceProvider()->attachStencilAttachment(tgt)) { |
| tex->unref(); |
| return nullptr; |
| } else { |
| return tex; |
| } |
| } |
| |
| GrRenderTarget* GrGpu::wrapBackendRenderTarget(const GrBackendRenderTargetDesc& desc, |
| GrWrapOwnership ownership) { |
| if (!this->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) { |
| return nullptr; |
| } |
| this->handleDirtyContext(); |
| return this->onWrapBackendRenderTarget(desc, ownership); |
| } |
| |
| GrRenderTarget* GrGpu::wrapBackendTextureAsRenderTarget(const GrBackendTextureDesc& desc) { |
| this->handleDirtyContext(); |
| if (!(desc.fFlags & kRenderTarget_GrBackendTextureFlag)) { |
| return nullptr; |
| } |
| if (!this->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) { |
| return nullptr; |
| } |
| int maxSize = this->caps()->maxTextureSize(); |
| if (desc.fWidth > maxSize || desc.fHeight > maxSize) { |
| return nullptr; |
| } |
| return this->onWrapBackendTextureAsRenderTarget(desc); |
| } |
| |
| GrBuffer* GrGpu::createBuffer(size_t size, GrBufferType intendedType, |
| GrAccessPattern accessPattern, const void* data) { |
| this->handleDirtyContext(); |
| GrBuffer* buffer = this->onCreateBuffer(size, intendedType, accessPattern, data); |
| if (!this->caps()->reuseScratchBuffers()) { |
| buffer->resourcePriv().removeScratchKey(); |
| } |
| return buffer; |
| } |
| |
| void GrGpu::clear(const SkIRect& rect, |
| GrColor color, |
| GrRenderTarget* renderTarget) { |
| SkASSERT(renderTarget); |
| SkASSERT(SkIRect::MakeWH(renderTarget->width(), renderTarget->height()).contains(rect)); |
| this->handleDirtyContext(); |
| this->onClear(renderTarget, rect, color); |
| } |
| |
| void GrGpu::clearStencilClip(const SkIRect& rect, |
| bool insideClip, |
| GrRenderTarget* renderTarget) { |
| SkASSERT(renderTarget); |
| this->handleDirtyContext(); |
| this->onClearStencilClip(renderTarget, rect, insideClip); |
| } |
| |
| bool GrGpu::copySurface(GrSurface* dst, |
| GrSurface* src, |
| const SkIRect& srcRect, |
| const SkIPoint& dstPoint) { |
| SkASSERT(dst && src); |
| this->handleDirtyContext(); |
| return this->onCopySurface(dst, src, srcRect, dstPoint); |
| } |
| |
| bool GrGpu::getReadPixelsInfo(GrSurface* srcSurface, int width, int height, size_t rowBytes, |
| GrPixelConfig readConfig, DrawPreference* drawPreference, |
| ReadPixelTempDrawInfo* tempDrawInfo) { |
| SkASSERT(drawPreference); |
| SkASSERT(tempDrawInfo); |
| SkASSERT(kGpuPrefersDraw_DrawPreference != *drawPreference); |
| |
| // We currently do not support reading into a compressed buffer |
| if (GrPixelConfigIsCompressed(readConfig)) { |
| return false; |
| } |
| |
| if (!this->onGetReadPixelsInfo(srcSurface, width, height, rowBytes, readConfig, drawPreference, |
| tempDrawInfo)) { |
| return false; |
| } |
| |
| // Check to see if we're going to request that the caller draw when drawing is not possible. |
| if (!srcSurface->asTexture() || |
| !this->caps()->isConfigRenderable(tempDrawInfo->fTempSurfaceDesc.fConfig, false)) { |
| // If we don't have a fallback to a straight read then fail. |
| if (kRequireDraw_DrawPreference == *drawPreference) { |
| return false; |
| } |
| *drawPreference = kNoDraw_DrawPreference; |
| } |
| |
| return true; |
| } |
| bool GrGpu::getWritePixelsInfo(GrSurface* dstSurface, int width, int height, |
| GrPixelConfig srcConfig, DrawPreference* drawPreference, |
| WritePixelTempDrawInfo* tempDrawInfo) { |
| SkASSERT(drawPreference); |
| SkASSERT(tempDrawInfo); |
| SkASSERT(kGpuPrefersDraw_DrawPreference != *drawPreference); |
| |
| if (GrPixelConfigIsCompressed(dstSurface->desc().fConfig) && |
| dstSurface->desc().fConfig != srcConfig) { |
| return false; |
| } |
| |
| if (SkToBool(dstSurface->asRenderTarget())) { |
| if (this->caps()->useDrawInsteadOfAllRenderTargetWrites()) { |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| } else if (this->caps()->useDrawInsteadOfPartialRenderTargetWrite() && |
| (width < dstSurface->width() || height < dstSurface->height())) { |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| } |
| } |
| |
| if (!this->onGetWritePixelsInfo(dstSurface, width, height, srcConfig, drawPreference, |
| tempDrawInfo)) { |
| return false; |
| } |
| |
| // Check to see if we're going to request that the caller draw when drawing is not possible. |
| if (!dstSurface->asRenderTarget() || |
| !this->caps()->isConfigTexturable(tempDrawInfo->fTempSurfaceDesc.fConfig)) { |
| // If we don't have a fallback to a straight upload then fail. |
| if (kRequireDraw_DrawPreference == *drawPreference || |
| !this->caps()->isConfigTexturable(srcConfig)) { |
| return false; |
| } |
| *drawPreference = kNoDraw_DrawPreference; |
| } |
| return true; |
| } |
| |
| bool GrGpu::readPixels(GrSurface* surface, |
| int left, int top, int width, int height, |
| GrPixelConfig config, void* buffer, |
| size_t rowBytes) { |
| this->handleDirtyContext(); |
| |
| // We cannot read pixels into a compressed buffer |
| if (GrPixelConfigIsCompressed(config)) { |
| return false; |
| } |
| |
| size_t bpp = GrBytesPerPixel(config); |
| if (!GrSurfacePriv::AdjustReadPixelParams(surface->width(), surface->height(), bpp, |
| &left, &top, &width, &height, |
| &buffer, |
| &rowBytes)) { |
| return false; |
| } |
| |
| return this->onReadPixels(surface, |
| left, top, width, height, |
| config, buffer, |
| rowBytes); |
| } |
| |
| bool GrGpu::writePixels(GrSurface* surface, |
| int left, int top, int width, int height, |
| GrPixelConfig config, const SkTArray<GrMipLevel>& texels) { |
| if (!surface) { |
| return false; |
| } |
| for (int currentMipLevel = 0; currentMipLevel < texels.count(); currentMipLevel++) { |
| if (!texels[currentMipLevel].fPixels ) { |
| return false; |
| } |
| } |
| |
| this->handleDirtyContext(); |
| if (this->onWritePixels(surface, left, top, width, height, config, texels)) { |
| SkIRect rect = SkIRect::MakeXYWH(left, top, width, height); |
| this->didWriteToSurface(surface, &rect, texels.count()); |
| fStats.incTextureUploads(); |
| return true; |
| } |
| return false; |
| } |
| |
| bool GrGpu::writePixels(GrSurface* surface, |
| int left, int top, int width, int height, |
| GrPixelConfig config, const void* buffer, |
| size_t rowBytes) { |
| GrMipLevel mipLevel; |
| mipLevel.fPixels = buffer; |
| mipLevel.fRowBytes = rowBytes; |
| SkSTArray<1, GrMipLevel> texels; |
| texels.push_back(mipLevel); |
| |
| return this->writePixels(surface, left, top, width, height, config, texels); |
| } |
| |
| bool GrGpu::transferPixels(GrSurface* surface, |
| int left, int top, int width, int height, |
| GrPixelConfig config, GrBuffer* transferBuffer, |
| size_t offset, size_t rowBytes) { |
| SkASSERT(transferBuffer); |
| |
| this->handleDirtyContext(); |
| if (this->onTransferPixels(surface, left, top, width, height, config, |
| transferBuffer, offset, rowBytes)) { |
| SkIRect rect = SkIRect::MakeXYWH(left, top, width, height); |
| this->didWriteToSurface(surface, &rect); |
| fStats.incTransfersToTexture(); |
| return true; |
| } |
| return false; |
| } |
| |
| void GrGpu::resolveRenderTarget(GrRenderTarget* target) { |
| SkASSERT(target); |
| this->handleDirtyContext(); |
| this->onResolveRenderTarget(target); |
| } |
| |
| void GrGpu::didWriteToSurface(GrSurface* surface, const SkIRect* bounds, uint32_t mipLevels) const { |
| SkASSERT(surface); |
| // Mark any MIP chain and resolve buffer as dirty if and only if there is a non-empty bounds. |
| if (nullptr == bounds || !bounds->isEmpty()) { |
| if (GrRenderTarget* target = surface->asRenderTarget()) { |
| target->flagAsNeedingResolve(bounds); |
| } |
| GrTexture* texture = surface->asTexture(); |
| if (texture && 1 == mipLevels) { |
| texture->texturePriv().dirtyMipMaps(true); |
| } |
| } |
| } |
| |
| inline static uint8_t multisample_specs_id(uint8_t numSamples, GrSurfaceOrigin origin, |
| const GrCaps& caps) { |
| if (!caps.sampleLocationsSupport()) { |
| return numSamples; |
| } |
| |
| SkASSERT(numSamples < 128); |
| SkASSERT(kTopLeft_GrSurfaceOrigin == origin || kBottomLeft_GrSurfaceOrigin == origin); |
| return (numSamples << 1) | (origin - 1); |
| |
| GR_STATIC_ASSERT(1 == kTopLeft_GrSurfaceOrigin); |
| GR_STATIC_ASSERT(2 == kBottomLeft_GrSurfaceOrigin); |
| } |
| |
| const GrGpu::MultisampleSpecs& GrGpu::getMultisampleSpecs(GrRenderTarget* rt, |
| const GrStencilSettings& stencil) { |
| const GrSurfaceDesc& desc = rt->desc(); |
| uint8_t surfDescKey = multisample_specs_id(desc.fSampleCnt, desc.fOrigin, *this->caps()); |
| if (fMultisampleSpecsMap.count() > surfDescKey && fMultisampleSpecsMap[surfDescKey]) { |
| #if !defined(SK_DEBUG) |
| // In debug mode we query the multisample info every time and verify the caching is correct. |
| return *fMultisampleSpecsMap[surfDescKey]; |
| #endif |
| } |
| int effectiveSampleCnt; |
| SkAutoTDeleteArray<SkPoint> locations(nullptr); |
| this->onGetMultisampleSpecs(rt, stencil, &effectiveSampleCnt, &locations); |
| SkASSERT(effectiveSampleCnt && effectiveSampleCnt >= desc.fSampleCnt); |
| uint8_t effectiveKey = multisample_specs_id(effectiveSampleCnt, desc.fOrigin, *this->caps()); |
| if (fMultisampleSpecsMap.count() > effectiveKey && fMultisampleSpecsMap[effectiveKey]) { |
| const MultisampleSpecs& specs = *fMultisampleSpecsMap[effectiveKey]; |
| SkASSERT(effectiveKey == specs.fUniqueID); |
| SkASSERT(effectiveSampleCnt == specs.fEffectiveSampleCnt); |
| SkASSERT(!this->caps()->sampleLocationsSupport() || |
| !memcmp(locations.get(), specs.fSampleLocations.get(), |
| effectiveSampleCnt * sizeof(SkPoint))); |
| SkASSERT(surfDescKey <= effectiveKey); |
| SkASSERT(!fMultisampleSpecsMap[surfDescKey] || fMultisampleSpecsMap[surfDescKey] == &specs); |
| fMultisampleSpecsMap[surfDescKey] = &specs; |
| return specs; |
| } |
| const MultisampleSpecs& specs = *new (&fMultisampleSpecsAllocator) |
| MultisampleSpecs{effectiveKey, effectiveSampleCnt, locations.release()}; |
| if (fMultisampleSpecsMap.count() <= effectiveKey) { |
| int n = 1 + effectiveKey - fMultisampleSpecsMap.count(); |
| fMultisampleSpecsMap.push_back_n(n, (const MultisampleSpecs*) nullptr); |
| } |
| fMultisampleSpecsMap[effectiveKey] = &specs; |
| if (effectiveSampleCnt != desc.fSampleCnt) { |
| SkASSERT(surfDescKey < effectiveKey); |
| fMultisampleSpecsMap[surfDescKey] = &specs; |
| } |
| return specs; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| bool GrGpu::draw(const GrPipeline& pipeline, |
| const GrPrimitiveProcessor& primProc, |
| const GrMesh* meshes, |
| int meshCount) { |
| if (primProc.numAttribs() > this->caps()->maxVertexAttributes()) { |
| fStats.incNumFailedDraws(); |
| return false; |
| } |
| this->handleDirtyContext(); |
| |
| this->onDraw(pipeline, primProc, meshes, meshCount); |
| return true; |
| } |
