| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkSurface_Gpu.h" |
| |
| #include "GrBackendSurface.h" |
| #include "GrContextPriv.h" |
| #include "GrRenderTarget.h" |
| #include "GrRenderTargetContextPriv.h" |
| #include "GrTexture.h" |
| |
| #include "SkCanvas.h" |
| #include "SkDeferredDisplayList.h" |
| #include "SkGpuDevice.h" |
| #include "SkImage_Base.h" |
| #include "SkImage_Gpu.h" |
| #include "SkImagePriv.h" |
| #include "SkSurface_Base.h" |
| #include "SkSurfaceCharacterization.h" |
| |
| #if SK_SUPPORT_GPU |
| |
| SkSurface_Gpu::SkSurface_Gpu(sk_sp<SkGpuDevice> device) |
| : INHERITED(device->width(), device->height(), &device->surfaceProps()) |
| , fDevice(std::move(device)) { |
| SkASSERT(fDevice->accessRenderTargetContext()->asSurfaceProxy()->priv().isExact()); |
| } |
| |
| SkSurface_Gpu::~SkSurface_Gpu() { |
| } |
| |
| static GrRenderTarget* prepare_rt_for_external_access(SkSurface_Gpu* surface, |
| SkSurface::BackendHandleAccess access) { |
| switch (access) { |
| case SkSurface::kFlushRead_BackendHandleAccess: |
| break; |
| case SkSurface::kFlushWrite_BackendHandleAccess: |
| case SkSurface::kDiscardWrite_BackendHandleAccess: |
| // for now we don't special-case on Discard, but we may in the future. |
| surface->notifyContentWillChange(SkSurface::kRetain_ContentChangeMode); |
| break; |
| } |
| |
| // Grab the render target *after* firing notifications, as it may get switched if CoW kicks in. |
| surface->getDevice()->flush(); |
| GrRenderTargetContext* rtc = surface->getDevice()->accessRenderTargetContext(); |
| return rtc->accessRenderTarget(); |
| } |
| |
| GrBackendObject SkSurface_Gpu::onGetTextureHandle(BackendHandleAccess access) { |
| GrRenderTarget* rt = prepare_rt_for_external_access(this, access); |
| if (!rt) { |
| return 0; |
| } |
| GrTexture* texture = rt->asTexture(); |
| if (texture) { |
| return texture->getTextureHandle(); |
| } |
| return 0; |
| } |
| |
| bool SkSurface_Gpu::onGetRenderTargetHandle(GrBackendObject* obj, BackendHandleAccess access) { |
| GrRenderTarget* rt = prepare_rt_for_external_access(this, access); |
| if (!rt) { |
| return false; |
| } |
| *obj = rt->getRenderTargetHandle(); |
| return true; |
| } |
| |
| SkCanvas* SkSurface_Gpu::onNewCanvas() { |
| SkCanvas::InitFlags flags = SkCanvas::kDefault_InitFlags; |
| flags = static_cast<SkCanvas::InitFlags>(flags | SkCanvas::kConservativeRasterClip_InitFlag); |
| |
| return new SkCanvas(fDevice.get(), flags); |
| } |
| |
| sk_sp<SkSurface> SkSurface_Gpu::onNewSurface(const SkImageInfo& info) { |
| int sampleCount = fDevice->accessRenderTargetContext()->numColorSamples(); |
| GrSurfaceOrigin origin = fDevice->accessRenderTargetContext()->origin(); |
| // TODO: Make caller specify this (change virtual signature of onNewSurface). |
| static const SkBudgeted kBudgeted = SkBudgeted::kNo; |
| return SkSurface::MakeRenderTarget(fDevice->context(), kBudgeted, info, sampleCount, |
| origin, &this->props()); |
| } |
| |
| sk_sp<SkImage> SkSurface_Gpu::onNewImageSnapshot() { |
| GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext(); |
| if (!rtc) { |
| return nullptr; |
| } |
| |
| GrContext* ctx = fDevice->context(); |
| |
| if (!rtc->asSurfaceProxy()) { |
| return nullptr; |
| } |
| |
| SkBudgeted budgeted = rtc->asSurfaceProxy()->isBudgeted(); |
| |
| sk_sp<GrTextureProxy> srcProxy = rtc->asTextureProxyRef(); |
| // If the original render target is a buffer originally created by the client, then we don't |
| // want to ever retarget the SkSurface at another buffer we create. Force a copy now to avoid |
| // copy-on-write. |
| if (!srcProxy || rtc->priv().refsWrappedObjects()) { |
| SkASSERT(rtc->origin() == rtc->asSurfaceProxy()->origin()); |
| |
| srcProxy = GrSurfaceProxy::Copy(ctx, rtc->asSurfaceProxy(), rtc->mipMapped(), budgeted); |
| } |
| |
| const SkImageInfo info = fDevice->imageInfo(); |
| sk_sp<SkImage> image; |
| if (srcProxy) { |
| // The renderTargetContext coming out of SkGpuDevice should always be exact and the |
| // above copy creates a kExact surfaceContext. |
| SkASSERT(srcProxy->priv().isExact()); |
| image = sk_make_sp<SkImage_Gpu>(ctx, kNeedNewImageUniqueID, |
| info.alphaType(), std::move(srcProxy), |
| info.refColorSpace(), budgeted); |
| } |
| return image; |
| } |
| |
| void SkSurface_Gpu::onWritePixels(const SkPixmap& src, int x, int y) { |
| fDevice->writePixels(src, x, y); |
| } |
| |
| // Create a new render target and, if necessary, copy the contents of the old |
| // render target into it. Note that this flushes the SkGpuDevice but |
| // doesn't force an OpenGL flush. |
| void SkSurface_Gpu::onCopyOnWrite(ContentChangeMode mode) { |
| GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext(); |
| |
| // are we sharing our backing proxy with the image? Note this call should never create a new |
| // image because onCopyOnWrite is only called when there is a cached image. |
| sk_sp<SkImage> image(this->refCachedImage()); |
| SkASSERT(image); |
| |
| GrSurfaceProxy* imageProxy = ((SkImage_Base*) image.get())->peekProxy(); |
| SkASSERT(imageProxy); |
| |
| if (rtc->asSurfaceProxy()->underlyingUniqueID() == imageProxy->underlyingUniqueID()) { |
| fDevice->replaceRenderTargetContext(SkSurface::kRetain_ContentChangeMode == mode); |
| } else if (kDiscard_ContentChangeMode == mode) { |
| this->SkSurface_Gpu::onDiscard(); |
| } |
| } |
| |
| void SkSurface_Gpu::onDiscard() { |
| fDevice->accessRenderTargetContext()->discard(); |
| } |
| |
| GrSemaphoresSubmitted SkSurface_Gpu::onFlush(int numSemaphores, |
| GrBackendSemaphore signalSemaphores[]) { |
| return fDevice->flushAndSignalSemaphores(numSemaphores, signalSemaphores); |
| } |
| |
| bool SkSurface_Gpu::onWait(int numSemaphores, const GrBackendSemaphore* waitSemaphores) { |
| return fDevice->wait(numSemaphores, waitSemaphores); |
| } |
| |
| bool SkSurface_Gpu::onCharacterize(SkSurfaceCharacterization* data) const { |
| GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext(); |
| GrContext* ctx = fDevice->context(); |
| |
| int maxResourceCount; |
| size_t maxResourceBytes; |
| ctx->getResourceCacheLimits(&maxResourceCount, &maxResourceBytes); |
| |
| bool mipmapped = rtc->asTextureProxy() ? GrMipMapped::kYes == rtc->asTextureProxy()->mipMapped() |
| : false; |
| |
| data->set(ctx->threadSafeProxy(), maxResourceCount, maxResourceBytes, |
| rtc->origin(), rtc->width(), rtc->height(), |
| rtc->colorSpaceInfo().config(), rtc->fsaaType(), rtc->numStencilSamples(), |
| SkSurfaceCharacterization::Textureable(SkToBool(rtc->asTextureProxy())), |
| SkSurfaceCharacterization::MipMapped(mipmapped), |
| rtc->colorSpaceInfo().refColorSpace(), this->props()); |
| |
| return true; |
| } |
| |
| bool SkSurface_Gpu::isCompatible(const SkSurfaceCharacterization& data) const { |
| GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext(); |
| GrContext* ctx = fDevice->context(); |
| |
| // As long as the current state if the context allows for greater or equal resources, |
| // we allow the DDL to be replayed. |
| int maxResourceCount; |
| size_t maxResourceBytes; |
| ctx->getResourceCacheLimits(&maxResourceCount, &maxResourceBytes); |
| |
| if (data.isTextureable()) { |
| if (!rtc->asTextureProxy()) { |
| // If the characterization was textureable we require the replay dest to also be |
| // textureable. If the characterized surface wasn't textureable we allow the replay |
| // dest to be textureable. |
| return false; |
| } |
| |
| if (data.isMipMapped() && GrMipMapped::kNo == rtc->asTextureProxy()->mipMapped()) { |
| // Fail if the DDL's surface was mipmapped but the replay surface is not. |
| // Allow drawing to proceed if the DDL was not mipmapped but the replay surface is. |
| return false; |
| } |
| } |
| |
| return data.contextInfo() && data.contextInfo()->matches(ctx) && |
| data.cacheMaxResourceCount() <= maxResourceCount && |
| data.cacheMaxResourceBytes() <= maxResourceBytes && |
| data.origin() == rtc->origin() && data.width() == rtc->width() && |
| data.height() == rtc->height() && data.config() == rtc->colorSpaceInfo().config() && |
| data.fsaaType() == rtc->fsaaType() && data.stencilCount() == rtc->numStencilSamples() && |
| SkColorSpace::Equals(data.colorSpace(), rtc->colorSpaceInfo().colorSpace()) && |
| data.surfaceProps() == rtc->surfaceProps(); |
| } |
| |
| bool SkSurface_Gpu::onDraw(const SkDeferredDisplayList* ddl) { |
| if (!this->isCompatible(ddl->characterization())) { |
| return false; |
| } |
| |
| #ifdef SK_RASTER_RECORDER_IMPLEMENTATION |
| // Ultimately need to pass opLists from the DeferredDisplayList on to the |
| // SkGpuDevice's renderTargetContext. |
| return ddl->draw(this); |
| #else |
| GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext(); |
| GrContext* ctx = fDevice->context(); |
| |
| ctx->contextPriv().copyOpListsFromDDL(ddl, rtc->asRenderTargetProxy()); |
| return true; |
| #endif |
| } |
| |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| bool SkSurface_Gpu::Valid(const SkImageInfo& info) { |
| switch (info.colorType()) { |
| case kRGBA_F16_SkColorType: |
| return (!info.colorSpace()) || info.colorSpace()->gammaIsLinear(); |
| case kRGBA_8888_SkColorType: |
| case kBGRA_8888_SkColorType: |
| return !info.colorSpace() || info.colorSpace()->gammaCloseToSRGB(); |
| default: |
| return !info.colorSpace(); |
| } |
| } |
| |
| bool SkSurface_Gpu::Valid(GrContext* context, GrPixelConfig config, SkColorSpace* colorSpace) { |
| switch (config) { |
| case kRGBA_half_GrPixelConfig: |
| return (!colorSpace) || colorSpace->gammaIsLinear(); |
| case kSRGBA_8888_GrPixelConfig: |
| case kSBGRA_8888_GrPixelConfig: |
| return context->caps()->srgbSupport() && colorSpace && colorSpace->gammaCloseToSRGB(); |
| case kRGBA_8888_GrPixelConfig: |
| case kBGRA_8888_GrPixelConfig: |
| // If we don't have sRGB support, we may get here with a color space. It still needs |
| // to be sRGB-like (so that the application will work correctly on sRGB devices.) |
| return !colorSpace || |
| (colorSpace->gammaCloseToSRGB() && !context->caps()->srgbSupport()); |
| default: |
| return !colorSpace; |
| } |
| } |
| |
| sk_sp<SkSurface> SkSurface::MakeRenderTarget(GrContext* ctx, SkBudgeted budgeted, |
| const SkImageInfo& info, int sampleCount, |
| GrSurfaceOrigin origin, const SkSurfaceProps* props, |
| bool shouldCreateWithMips) { |
| if (!ctx) { |
| return nullptr; |
| } |
| if (!SkSurface_Gpu::Valid(info)) { |
| return nullptr; |
| } |
| sampleCount = SkTMax(1, sampleCount); |
| GrMipMapped mipMapped = shouldCreateWithMips ? GrMipMapped::kYes : GrMipMapped::kNo; |
| |
| if (!ctx->caps()->mipMapSupport()) { |
| mipMapped = GrMipMapped::kNo; |
| } |
| |
| sk_sp<SkGpuDevice> device(SkGpuDevice::Make( |
| ctx, budgeted, info, sampleCount, origin, props, mipMapped, |
| SkGpuDevice::kClear_InitContents)); |
| if (!device) { |
| return nullptr; |
| } |
| return sk_make_sp<SkSurface_Gpu>(std::move(device)); |
| } |
| |
| sk_sp<SkSurface> SkSurface_Gpu::MakeWrappedRenderTarget(GrContext* context, |
| sk_sp<GrRenderTargetContext> rtc) { |
| if (!context) { |
| return nullptr; |
| } |
| |
| sk_sp<SkGpuDevice> device(SkGpuDevice::Make(context, std::move(rtc), |
| rtc->width(), rtc->height(), |
| SkGpuDevice::kUninit_InitContents)); |
| if (!device) { |
| return nullptr; |
| } |
| |
| return sk_make_sp<SkSurface_Gpu>(std::move(device)); |
| } |
| |
| |
| sk_sp<SkSurface> SkSurface::MakeFromBackendTexture(GrContext* context, const GrBackendTexture& tex, |
| GrSurfaceOrigin origin, int sampleCnt, |
| sk_sp<SkColorSpace> colorSpace, |
| const SkSurfaceProps* props) { |
| if (!context) { |
| return nullptr; |
| } |
| if (!SkSurface_Gpu::Valid(context, tex.config(), colorSpace.get())) { |
| return nullptr; |
| } |
| sampleCnt = SkTMax(1, sampleCnt); |
| |
| sk_sp<GrRenderTargetContext> rtc(context->contextPriv().makeBackendTextureRenderTargetContext( |
| tex, |
| origin, |
| sampleCnt, |
| std::move(colorSpace), |
| props)); |
| if (!rtc) { |
| return nullptr; |
| } |
| |
| sk_sp<SkGpuDevice> device(SkGpuDevice::Make(context, std::move(rtc), tex.width(), tex.height(), |
| SkGpuDevice::kUninit_InitContents)); |
| if (!device) { |
| return nullptr; |
| } |
| return sk_make_sp<SkSurface_Gpu>(std::move(device)); |
| } |
| |
| bool validate_backend_texture(GrContext* ctx, const GrBackendTexture& tex, GrPixelConfig* config, |
| int sampleCnt, SkColorType ct, sk_sp<SkColorSpace> cs, |
| bool texturable) { |
| // TODO: Create a SkImageColorInfo struct for color, alpha, and color space so we don't need to |
| // create a fake image info here. |
| SkImageInfo info = SkImageInfo::Make(1, 1, ct, kPremul_SkAlphaType, cs); |
| |
| if (!SkSurface_Gpu::Valid(info)) { |
| return false; |
| } |
| |
| if (!ctx->caps()->validateBackendTexture(tex, ct, config)) { |
| return false; |
| } |
| |
| // We don't require that the client gave us an exact valid sample cnt. However, it must be |
| // less than the max supported sample count and 1 if MSAA is unsupported for the color type. |
| if (!ctx->caps()->getRenderTargetSampleCount(sampleCnt, *config)) { |
| return false; |
| } |
| |
| if (texturable && !ctx->caps()->isConfigTexturable(*config)) { |
| return false; |
| } |
| return true; |
| } |
| |
| sk_sp<SkSurface> SkSurface::MakeFromBackendTexture(GrContext* context, const GrBackendTexture& tex, |
| GrSurfaceOrigin origin, int sampleCnt, |
| SkColorType colorType, |
| sk_sp<SkColorSpace> colorSpace, |
| const SkSurfaceProps* props) { |
| if (!context) { |
| return nullptr; |
| } |
| sampleCnt = SkTMax(1, sampleCnt); |
| GrBackendTexture texCopy = tex; |
| if (!validate_backend_texture(context, texCopy, &texCopy.fConfig, |
| sampleCnt, colorType, colorSpace, true)) { |
| return nullptr; |
| } |
| |
| return MakeFromBackendTexture(context, texCopy, origin, sampleCnt, colorSpace, props); |
| } |
| |
| sk_sp<SkSurface> SkSurface::MakeFromBackendRenderTarget(GrContext* context, |
| const GrBackendRenderTarget& backendRT, |
| GrSurfaceOrigin origin, |
| sk_sp<SkColorSpace> colorSpace, |
| const SkSurfaceProps* props) { |
| if (!context) { |
| return nullptr; |
| } |
| if (!SkSurface_Gpu::Valid(context, backendRT.config(), colorSpace.get())) { |
| return nullptr; |
| } |
| |
| sk_sp<GrRenderTargetContext> rtc( |
| context->contextPriv().makeBackendRenderTargetRenderTargetContext(backendRT, |
| origin, |
| std::move(colorSpace), |
| props)); |
| if (!rtc) { |
| return nullptr; |
| } |
| |
| sk_sp<SkGpuDevice> device(SkGpuDevice::Make(context, std::move(rtc), |
| backendRT.width(), backendRT.height(), |
| SkGpuDevice::kUninit_InitContents)); |
| if (!device) { |
| return nullptr; |
| } |
| |
| return sk_make_sp<SkSurface_Gpu>(std::move(device)); |
| } |
| |
| bool validate_backend_render_target(GrContext* ctx, const GrBackendRenderTarget& rt, |
| GrPixelConfig* config, SkColorType ct, sk_sp<SkColorSpace> cs) { |
| // TODO: Create a SkImageColorInfo struct for color, alpha, and color space so we don't need to |
| // create a fake image info here. |
| SkImageInfo info = SkImageInfo::Make(1, 1, ct, kPremul_SkAlphaType, cs); |
| |
| if (!SkSurface_Gpu::Valid(info)) { |
| return false; |
| } |
| |
| if (!ctx->caps()->validateBackendRenderTarget(rt, ct, config)) { |
| return false; |
| } |
| |
| if (rt.sampleCnt() > 1) { |
| if (ctx->caps()->maxRenderTargetSampleCount(*config) <= 1) { |
| return false; |
| } |
| } else if (!ctx->caps()->isConfigRenderable(*config)) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| sk_sp<SkSurface> SkSurface::MakeFromBackendRenderTarget(GrContext* context, |
| const GrBackendRenderTarget& rt, |
| GrSurfaceOrigin origin, |
| SkColorType colorType, |
| sk_sp<SkColorSpace> colorSpace, |
| const SkSurfaceProps* props) { |
| if (!context) { |
| return nullptr; |
| } |
| GrBackendRenderTarget rtCopy = rt; |
| if (!validate_backend_render_target(context, rtCopy, &rtCopy.fConfig, colorType, colorSpace)) { |
| return nullptr; |
| } |
| |
| return MakeFromBackendRenderTarget(context, rtCopy, origin, colorSpace, props); |
| } |
| |
| sk_sp<SkSurface> SkSurface::MakeFromBackendTextureAsRenderTarget(GrContext* context, |
| const GrBackendTexture& tex, |
| GrSurfaceOrigin origin, |
| int sampleCnt, |
| sk_sp<SkColorSpace> colorSpace, |
| const SkSurfaceProps* props) { |
| if (!context) { |
| return nullptr; |
| } |
| if (!SkSurface_Gpu::Valid(context, tex.config(), colorSpace.get())) { |
| return nullptr; |
| } |
| sampleCnt = SkTMax(1, sampleCnt); |
| |
| sk_sp<GrRenderTargetContext> rtc( |
| context->contextPriv().makeBackendTextureAsRenderTargetRenderTargetContext( |
| tex, |
| origin, |
| sampleCnt, |
| std::move(colorSpace), |
| props)); |
| if (!rtc) { |
| return nullptr; |
| } |
| |
| sk_sp<SkGpuDevice> device(SkGpuDevice::Make(context, std::move(rtc), tex.width(), tex.height(), |
| SkGpuDevice::kUninit_InitContents)); |
| if (!device) { |
| return nullptr; |
| } |
| return sk_make_sp<SkSurface_Gpu>(std::move(device)); |
| } |
| |
| sk_sp<SkSurface> SkSurface::MakeFromBackendTextureAsRenderTarget(GrContext* context, |
| const GrBackendTexture& tex, |
| GrSurfaceOrigin origin, |
| int sampleCnt, |
| SkColorType colorType, |
| sk_sp<SkColorSpace> colorSpace, |
| const SkSurfaceProps* props) { |
| if (!context) { |
| return nullptr; |
| } |
| sampleCnt = SkTMax(1, sampleCnt); |
| GrBackendTexture texCopy = tex; |
| if (!validate_backend_texture(context, texCopy, &texCopy.fConfig, |
| sampleCnt, colorType, colorSpace, false)) { |
| return nullptr; |
| } |
| |
| return MakeFromBackendTextureAsRenderTarget(context, texCopy, origin, sampleCnt, colorSpace, |
| props); |
| } |
| |
| #endif |