| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/GrSurfaceContext.h" |
| |
| #include "include/private/GrRecordingContext.h" |
| #include "src/core/SkAutoPixmapStorage.h" |
| #include "src/gpu/GrAuditTrail.h" |
| #include "src/gpu/GrClip.h" |
| #include "src/gpu/GrContextPriv.h" |
| #include "src/gpu/GrDataUtils.h" |
| #include "src/gpu/GrDrawingManager.h" |
| #include "src/gpu/GrGpu.h" |
| #include "src/gpu/GrOpList.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "src/gpu/GrRenderTargetContext.h" |
| #include "src/gpu/GrSurfaceContextPriv.h" |
| #include "src/gpu/GrSurfacePriv.h" |
| #include "src/gpu/GrTextureContext.h" |
| #include "src/gpu/SkGr.h" |
| |
| #define ASSERT_SINGLE_OWNER \ |
| SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(this->singleOwner());) |
| #define RETURN_FALSE_IF_ABANDONED if (this->fContext->priv().abandoned()) { return false; } |
| |
| // In MDB mode the reffing of the 'getLastOpList' call's result allows in-progress |
| // GrOpLists to be picked up and added to by renderTargetContexts lower in the call |
| // stack. When this occurs with a closed GrOpList, a new one will be allocated |
| // when the renderTargetContext attempts to use it (via getOpList). |
| GrSurfaceContext::GrSurfaceContext(GrRecordingContext* context, |
| GrColorType colorType, |
| SkAlphaType alphaType, |
| sk_sp<SkColorSpace> colorSpace) |
| : fContext(context), fColorSpaceInfo(colorType, alphaType, std::move(colorSpace)) {} |
| |
| GrAuditTrail* GrSurfaceContext::auditTrail() { |
| return fContext->priv().auditTrail(); |
| } |
| |
| GrDrawingManager* GrSurfaceContext::drawingManager() { |
| return fContext->priv().drawingManager(); |
| } |
| |
| const GrDrawingManager* GrSurfaceContext::drawingManager() const { |
| return fContext->priv().drawingManager(); |
| } |
| |
| #ifdef SK_DEBUG |
| GrSingleOwner* GrSurfaceContext::singleOwner() { |
| return fContext->priv().singleOwner(); |
| } |
| #endif |
| |
| bool GrSurfaceContext::readPixels(const GrPixelInfo& origDstInfo, void* dst, size_t rowBytes, |
| SkIPoint pt, GrContext* direct) { |
| ASSERT_SINGLE_OWNER |
| RETURN_FALSE_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| GR_AUDIT_TRAIL_AUTO_FRAME(this->auditTrail(), "GrSurfaceContext::readPixels"); |
| |
| if (!direct && !(direct = fContext->priv().asDirectContext())) { |
| return false; |
| } |
| |
| if (!dst) { |
| return false; |
| } |
| |
| size_t tightRowBytes = origDstInfo.minRowBytes(); |
| if (!rowBytes) { |
| rowBytes = tightRowBytes; |
| } else if (rowBytes < tightRowBytes) { |
| return false; |
| } |
| |
| if (!origDstInfo.isValid()) { |
| return false; |
| } |
| |
| GrSurfaceProxy* srcProxy = this->asSurfaceProxy(); |
| |
| // MDB TODO: delay this instantiation until later in the method |
| if (!srcProxy->instantiate(direct->priv().resourceProvider())) { |
| return false; |
| } |
| |
| GrSurface* srcSurface = srcProxy->peekSurface(); |
| |
| auto dstInfo = origDstInfo; |
| if (!dstInfo.clip(this->width(), this->height(), &pt, &dst, rowBytes)) { |
| return false; |
| } |
| // Our tight row bytes may have been changed by clipping. |
| tightRowBytes = dstInfo.minRowBytes(); |
| |
| bool premul = this->colorSpaceInfo().alphaType() == kUnpremul_SkAlphaType && |
| dstInfo.alphaType() == kPremul_SkAlphaType; |
| bool unpremul = this->colorSpaceInfo().alphaType() == kPremul_SkAlphaType && |
| dstInfo.alphaType() == kUnpremul_SkAlphaType; |
| |
| bool needColorConversion = SkColorSpaceXformSteps::Required(this->colorSpaceInfo().colorSpace(), |
| dstInfo.colorSpace()); |
| |
| const GrCaps* caps = direct->priv().caps(); |
| // This is the getImageData equivalent to the canvas2D putImageData fast path. We probably don't |
| // care so much about getImageData performance. However, in order to ensure putImageData/ |
| // getImageData in "legacy" mode are round-trippable we use the GPU to do the complementary |
| // unpremul step to writeSurfacePixels's premul step (which is determined empirically in |
| // fContext->vaildaPMUPMConversionExists()). |
| bool canvas2DFastPath = unpremul && !needColorConversion && |
| (GrColorType::kRGBA_8888 == dstInfo.colorType() || |
| GrColorType::kBGRA_8888 == dstInfo.colorType()) && |
| SkToBool(srcProxy->asTextureProxy()) && |
| (srcProxy->config() == kRGBA_8888_GrPixelConfig || |
| srcProxy->config() == kBGRA_8888_GrPixelConfig) && |
| caps->isConfigRenderable(kRGBA_8888_GrPixelConfig) && |
| direct->priv().validPMUPMConversionExists(); |
| |
| auto readFlag = caps->surfaceSupportsReadPixels(srcSurface); |
| if (readFlag == GrCaps::SurfaceReadPixelsSupport::kUnsupported) { |
| return false; |
| } |
| |
| if (readFlag == GrCaps::SurfaceReadPixelsSupport::kCopyToTexture2D || canvas2DFastPath) { |
| GrColorType colorType = canvas2DFastPath ? GrColorType::kRGBA_8888 |
| : this->colorSpaceInfo().colorType(); |
| sk_sp<SkColorSpace> cs = canvas2DFastPath ? nullptr |
| : this->colorSpaceInfo().refColorSpace(); |
| |
| sk_sp<GrRenderTargetContext> tempCtx = direct->priv().makeDeferredRenderTargetContext( |
| SkBackingFit::kApprox, dstInfo.width(), dstInfo.height(), colorType, std::move(cs), |
| 1, GrMipMapped::kNo, kTopLeft_GrSurfaceOrigin, nullptr, SkBudgeted::kYes); |
| if (!tempCtx) { |
| return false; |
| } |
| |
| std::unique_ptr<GrFragmentProcessor> fp; |
| if (canvas2DFastPath) { |
| fp = direct->priv().createPMToUPMEffect( |
| GrSimpleTextureEffect::Make(sk_ref_sp(srcProxy->asTextureProxy()), |
| SkMatrix::I())); |
| if (dstInfo.colorType() == GrColorType::kBGRA_8888) { |
| fp = GrFragmentProcessor::SwizzleOutput(std::move(fp), GrSwizzle::BGRA()); |
| dstInfo = dstInfo.makeColorType(GrColorType::kRGBA_8888); |
| } |
| // The render target context is incorrectly tagged as kPremul even though we're writing |
| // unpremul data thanks to the PMToUPM effect. Fake out the dst alpha type so we don't |
| // double unpremul. |
| dstInfo = dstInfo.makeAlphaType(kPremul_SkAlphaType); |
| } else { |
| fp = GrSimpleTextureEffect::Make(sk_ref_sp(srcProxy->asTextureProxy()), SkMatrix::I()); |
| } |
| if (!fp) { |
| return false; |
| } |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| paint.addColorFragmentProcessor(std::move(fp)); |
| |
| tempCtx->asRenderTargetContext()->fillRectToRect( |
| GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), |
| SkRect::MakeWH(dstInfo.width(), dstInfo.height()), |
| SkRect::MakeXYWH(pt.fX, pt.fY, dstInfo.width(), dstInfo.height())); |
| |
| return tempCtx->readPixels(dstInfo, dst, rowBytes, {0, 0}, direct); |
| } |
| |
| bool flip = srcProxy->origin() == kBottomLeft_GrSurfaceOrigin; |
| |
| auto supportedRead = caps->supportedReadPixelsColorType( |
| srcProxy->config(), srcProxy->backendFormat(), dstInfo.colorType()); |
| |
| bool makeTight = !caps->readPixelsRowBytesSupport() && tightRowBytes != rowBytes; |
| |
| bool convert = unpremul || premul || needColorConversion || flip || makeTight || |
| (dstInfo.colorType() != supportedRead.fColorType) || |
| supportedRead.fSwizzle != GrSwizzle::RGBA(); |
| |
| std::unique_ptr<char[]> tmpPixels; |
| GrPixelInfo tmpInfo; |
| void* readDst = dst; |
| size_t readRB = rowBytes; |
| if (convert) { |
| tmpInfo = {supportedRead.fColorType, this->colorSpaceInfo().alphaType(), |
| this->colorSpaceInfo().refColorSpace(), dstInfo.width(), dstInfo.height()}; |
| size_t tmpRB = tmpInfo.minRowBytes(); |
| size_t size = tmpRB * tmpInfo.height(); |
| // Chrome MSAN bots require the data to be initialized (hence the ()). |
| tmpPixels.reset(new char[size]()); |
| |
| readDst = tmpPixels.get(); |
| readRB = tmpRB; |
| pt.fY = flip ? srcSurface->height() - pt.fY - dstInfo.height() : pt.fY; |
| } |
| |
| direct->priv().flushSurface(srcProxy); |
| |
| if (!direct->priv().getGpu()->readPixels(srcSurface, pt.fX, pt.fY, dstInfo.width(), |
| dstInfo.height(), supportedRead.fColorType, readDst, |
| readRB)) { |
| return false; |
| } |
| |
| if (convert) { |
| return GrConvertPixels(dstInfo, dst, rowBytes, tmpInfo, readDst, readRB, flip, |
| supportedRead.fSwizzle); |
| } |
| return true; |
| } |
| |
| bool GrSurfaceContext::writePixels(const GrPixelInfo& origSrcInfo, const void* src, size_t rowBytes, |
| SkIPoint pt, GrContext* direct) { |
| ASSERT_SINGLE_OWNER |
| RETURN_FALSE_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| GR_AUDIT_TRAIL_AUTO_FRAME(this->auditTrail(), "GrSurfaceContext::writePixels"); |
| |
| if (!direct && !(direct = fContext->priv().asDirectContext())) { |
| return false; |
| } |
| |
| if (this->asSurfaceProxy()->readOnly()) { |
| return false; |
| } |
| |
| if (!src) { |
| return false; |
| } |
| |
| size_t tightRowBytes = origSrcInfo.minRowBytes(); |
| if (!rowBytes) { |
| rowBytes = tightRowBytes; |
| } else if (rowBytes < tightRowBytes) { |
| return false; |
| } |
| |
| if (!origSrcInfo.isValid()) { |
| return false; |
| } |
| |
| GrSurfaceProxy* dstProxy = this->asSurfaceProxy(); |
| if (!dstProxy->instantiate(direct->priv().resourceProvider())) { |
| return false; |
| } |
| |
| GrSurface* dstSurface = dstProxy->peekSurface(); |
| |
| auto srcInfo = origSrcInfo; |
| if (!srcInfo.clip(this->width(), this->height(), &pt, &src, rowBytes)) { |
| return false; |
| } |
| // Our tight row bytes may have been changed by clipping. |
| tightRowBytes = srcInfo.minRowBytes(); |
| |
| bool premul = this->colorSpaceInfo().alphaType() == kPremul_SkAlphaType && |
| srcInfo.alphaType() == kUnpremul_SkAlphaType; |
| bool unpremul = this->colorSpaceInfo().alphaType() == kUnpremul_SkAlphaType && |
| srcInfo.alphaType() == kPremul_SkAlphaType; |
| |
| bool needColorConversion = SkColorSpaceXformSteps::Required( |
| srcInfo.colorSpace(), this->colorSpaceInfo().colorSpace()); |
| |
| const GrCaps* caps = direct->priv().caps(); |
| // For canvas2D putImageData performance we have a special code path for unpremul RGBA_8888 srcs |
| // that are premultiplied on the GPU. This is kept as narrow as possible for now. |
| bool canvas2DFastPath = !caps->avoidWritePixelsFastPath() && premul && !needColorConversion && |
| (srcInfo.colorType() == GrColorType::kRGBA_8888 || |
| srcInfo.colorType() == GrColorType::kBGRA_8888) && |
| SkToBool(this->asRenderTargetContext()) && |
| (dstProxy->config() == kRGBA_8888_GrPixelConfig || |
| dstProxy->config() == kBGRA_8888_GrPixelConfig) && |
| direct->priv().caps()->isConfigTexturable(kRGBA_8888_GrPixelConfig) && |
| direct->priv().validPMUPMConversionExists(); |
| |
| if (!caps->surfaceSupportsWritePixels(dstSurface) || canvas2DFastPath) { |
| GrSurfaceDesc desc; |
| desc.fWidth = srcInfo.width(); |
| desc.fHeight = srcInfo.height(); |
| desc.fSampleCnt = 1; |
| GrColorType colorType; |
| |
| GrBackendFormat format; |
| SkAlphaType alphaType; |
| if (canvas2DFastPath) { |
| desc.fConfig = kRGBA_8888_GrPixelConfig; |
| colorType = GrColorType::kRGBA_8888; |
| format = caps->getBackendFormatFromColorType(colorType); |
| alphaType = kUnpremul_SkAlphaType; |
| } else { |
| desc.fConfig = dstProxy->config(); |
| colorType = this->colorSpaceInfo().colorType(); |
| format = dstProxy->backendFormat().makeTexture2D(); |
| if (!format.isValid()) { |
| return false; |
| } |
| alphaType = this->colorSpaceInfo().alphaType(); |
| } |
| |
| // It is more efficient for us to write pixels into a top left origin so we prefer that. |
| // However, if the final proxy isn't a render target then we must use a copy to move the |
| // data into it which requires the origins to match. If the final proxy is a render target |
| // we can use a draw instead which doesn't have this origin restriction. Thus for render |
| // targets we will use top left and otherwise we will make the origins match. |
| GrSurfaceOrigin tempOrigin = |
| this->asRenderTargetContext() ? kTopLeft_GrSurfaceOrigin : dstProxy->origin(); |
| auto tempProxy = direct->priv().proxyProvider()->createProxy( |
| format, desc, tempOrigin, SkBackingFit::kApprox, SkBudgeted::kYes); |
| |
| if (!tempProxy) { |
| return false; |
| } |
| auto tempCtx = direct->priv().drawingManager()->makeTextureContext( |
| tempProxy, colorType, alphaType, this->colorSpaceInfo().refColorSpace()); |
| if (!tempCtx) { |
| return false; |
| } |
| |
| // In the fast path we always write the srcData to the temp context as though it were RGBA. |
| // When the data is really BGRA the write will cause the R and B channels to be swapped in |
| // the intermediate surface which gets corrected by a swizzle effect when drawing to the |
| // dst. |
| if (canvas2DFastPath) { |
| srcInfo = srcInfo.makeColorType(GrColorType::kRGBA_8888); |
| } |
| if (!tempCtx->writePixels(srcInfo, src, rowBytes, {0, 0}, direct)) { |
| return false; |
| } |
| |
| if (this->asRenderTargetContext()) { |
| std::unique_ptr<GrFragmentProcessor> fp; |
| if (canvas2DFastPath) { |
| fp = direct->priv().createUPMToPMEffect( |
| GrSimpleTextureEffect::Make(std::move(tempProxy), SkMatrix::I())); |
| // Important: check the original src color type here! |
| if (origSrcInfo.colorType() == GrColorType::kBGRA_8888) { |
| fp = GrFragmentProcessor::SwizzleOutput(std::move(fp), GrSwizzle::BGRA()); |
| } |
| } else { |
| fp = GrSimpleTextureEffect::Make(std::move(tempProxy), SkMatrix::I()); |
| } |
| if (!fp) { |
| return false; |
| } |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| paint.addColorFragmentProcessor(std::move(fp)); |
| this->asRenderTargetContext()->fillRectToRect( |
| GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), |
| SkRect::MakeXYWH(pt.fX, pt.fY, srcInfo.width(), srcInfo.height()), |
| SkRect::MakeWH(srcInfo.width(), srcInfo.height())); |
| } else { |
| SkIRect srcRect = SkIRect::MakeWH(srcInfo.width(), srcInfo.height()); |
| SkIPoint dstPoint = SkIPoint::Make(pt.fX, pt.fY); |
| if (!this->copy(tempProxy.get(), srcRect, dstPoint)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| GrColorType allowedColorType = |
| caps->supportedWritePixelsColorType(dstProxy->config(), srcInfo.colorType()); |
| bool flip = dstProxy->origin() == kBottomLeft_GrSurfaceOrigin; |
| bool makeTight = !caps->writePixelsRowBytesSupport() && rowBytes != tightRowBytes; |
| bool convert = premul || unpremul || needColorConversion || makeTight || |
| (srcInfo.colorType() != allowedColorType) || flip; |
| |
| std::unique_ptr<char[]> tmpPixels; |
| GrColorType srcColorType = srcInfo.colorType(); |
| if (convert) { |
| GrPixelInfo tmpInfo(allowedColorType, this->colorSpaceInfo().alphaType(), |
| this->colorSpaceInfo().refColorSpace(), srcInfo.width(), |
| srcInfo.height()); |
| auto tmpRB = tmpInfo.minRowBytes(); |
| tmpPixels.reset(new char[tmpRB * tmpInfo.height()]); |
| |
| GrConvertPixels(tmpInfo, tmpPixels.get(), tmpRB, srcInfo, src, rowBytes, flip); |
| |
| srcColorType = tmpInfo.colorType(); |
| rowBytes = tmpRB; |
| src = tmpPixels.get(); |
| pt.fY = flip ? dstSurface->height() - pt.fY - tmpInfo.height() : pt.fY; |
| } |
| |
| // On platforms that prefer flushes over VRAM use (i.e., ANGLE) we're better off forcing a |
| // complete flush here. On platforms that prefer VRAM use over flushes we're better off |
| // giving the drawing manager the chance of skipping the flush (i.e., by passing in the |
| // destination proxy) |
| // TODO: should this policy decision just be moved into the drawing manager? |
| direct->priv().flushSurface(caps->preferVRAMUseOverFlushes() ? dstProxy : nullptr); |
| |
| return direct->priv().getGpu()->writePixels(dstSurface, pt.fX, pt.fY, srcInfo.width(), |
| srcInfo.height(), srcColorType, src, rowBytes); |
| } |
| |
| bool GrSurfaceContext::copy(GrSurfaceProxy* src, const SkIRect& srcRect, const SkIPoint& dstPoint) { |
| ASSERT_SINGLE_OWNER |
| RETURN_FALSE_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| GR_AUDIT_TRAIL_AUTO_FRAME(this->auditTrail(), "GrSurfaceContextPriv::copy"); |
| |
| const GrCaps* caps = fContext->priv().caps(); |
| |
| SkASSERT(src->backendFormat().textureType() != GrTextureType::kExternal); |
| SkASSERT(src->origin() == this->asSurfaceProxy()->origin()); |
| SkASSERT(caps->makeConfigSpecific(src->config(), src->backendFormat()) == |
| caps->makeConfigSpecific(this->asSurfaceProxy()->config(), |
| this->asSurfaceProxy()->backendFormat())); |
| |
| GrSurfaceProxy* dst = this->asSurfaceProxy(); |
| |
| if (!caps->canCopySurface(dst, src, srcRect, dstPoint)) { |
| return false; |
| } |
| |
| return this->getOpList()->copySurface(fContext, dst, src, srcRect, dstPoint); |
| } |
| |
