| /* |
| * 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 <cstddef> |
| #include <cstring> |
| #include <type_traits> |
| |
| #include "SkAutoPixmapStorage.h" |
| #include "GrBackendSurface.h" |
| #include "GrBitmapTextureMaker.h" |
| #include "GrCaps.h" |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrGpu.h" |
| #include "GrImageTextureMaker.h" |
| #include "GrRenderTargetContext.h" |
| #include "GrResourceProvider.h" |
| #include "GrSemaphore.h" |
| #include "GrTextureAdjuster.h" |
| #include "GrTexturePriv.h" |
| #include "GrTextureProxy.h" |
| #include "GrTextureToYUVPlanes.h" |
| #include "effects/GrNonlinearColorSpaceXformEffect.h" |
| #include "effects/GrYUVEffect.h" |
| #include "SkCanvas.h" |
| #include "SkCrossContextImageData.h" |
| #include "SkBitmapCache.h" |
| #include "SkGr.h" |
| #include "SkImage_Gpu.h" |
| #include "SkImageCacherator.h" |
| #include "SkImageInfoPriv.h" |
| #include "SkMipMap.h" |
| #include "SkPixelRef.h" |
| #include "SkReadPixelsRec.h" |
| |
| SkImage_Gpu::SkImage_Gpu(GrContext* context, uint32_t uniqueID, SkAlphaType at, |
| sk_sp<GrTextureProxy> proxy, |
| sk_sp<SkColorSpace> colorSpace, SkBudgeted budgeted) |
| : INHERITED(proxy->width(), proxy->height(), uniqueID) |
| , fContext(context) |
| , fProxy(std::move(proxy)) |
| , fAlphaType(at) |
| , fBudgeted(budgeted) |
| , fColorSpace(std::move(colorSpace)) |
| , fAddedRasterVersionToCache(false) { |
| } |
| |
| SkImage_Gpu::~SkImage_Gpu() { |
| if (fAddedRasterVersionToCache.load()) { |
| SkNotifyBitmapGenIDIsStale(this->uniqueID()); |
| } |
| } |
| |
| SkImageInfo SkImage_Gpu::onImageInfo() const { |
| SkColorType ct; |
| if (!GrPixelConfigToColorType(fProxy->config(), &ct)) { |
| ct = kUnknown_SkColorType; |
| } |
| return SkImageInfo::Make(fProxy->width(), fProxy->height(), ct, fAlphaType, fColorSpace); |
| } |
| |
| static SkImageInfo make_info(int w, int h, SkAlphaType at, sk_sp<SkColorSpace> colorSpace) { |
| return SkImageInfo::MakeN32(w, h, at, std::move(colorSpace)); |
| } |
| |
| bool SkImage_Gpu::getROPixels(SkBitmap* dst, SkColorSpace* dstColorSpace, CachingHint chint) const { |
| const auto desc = SkBitmapCacheDesc::Make(this); |
| if (SkBitmapCache::Find(desc, dst)) { |
| SkASSERT(dst->getGenerationID() == this->uniqueID()); |
| SkASSERT(dst->isImmutable()); |
| SkASSERT(dst->getPixels()); |
| return true; |
| } |
| |
| SkImageInfo ii = make_info(this->width(), this->height(), this->alphaType(), |
| sk_ref_sp(dstColorSpace)); |
| SkBitmapCache::RecPtr rec = nullptr; |
| SkPixmap pmap; |
| if (kAllow_CachingHint == chint) { |
| rec = SkBitmapCache::Alloc(desc, ii, &pmap); |
| if (!rec) { |
| return false; |
| } |
| } else { |
| if (!dst->tryAllocPixels(ii)) { |
| return false; |
| } |
| } |
| |
| sk_sp<GrSurfaceContext> sContext = fContext->contextPriv().makeWrappedSurfaceContext( |
| fProxy, |
| fColorSpace); |
| if (!sContext) { |
| return false; |
| } |
| |
| if (!sContext->readPixels(pmap.info(), pmap.writable_addr(), pmap.rowBytes(), 0, 0)) { |
| return false; |
| } |
| |
| if (rec) { |
| SkBitmapCache::Add(std::move(rec), dst); |
| fAddedRasterVersionToCache.store(true); |
| } |
| return true; |
| } |
| |
| sk_sp<GrTextureProxy> SkImage_Gpu::asTextureProxyRef(GrContext* context, |
| const GrSamplerParams& params, |
| SkColorSpace* dstColorSpace, |
| sk_sp<SkColorSpace>* texColorSpace, |
| SkScalar scaleAdjust[2]) const { |
| if (context != fContext) { |
| SkASSERT(0); |
| return nullptr; |
| } |
| |
| if (texColorSpace) { |
| *texColorSpace = this->fColorSpace; |
| } |
| |
| GrTextureAdjuster adjuster(fContext, fProxy, this->alphaType(), this->bounds(), |
| this->uniqueID(), this->fColorSpace.get()); |
| return adjuster.refTextureProxySafeForParams(params, nullptr, scaleAdjust); |
| } |
| |
| static void apply_premul(const SkImageInfo& info, void* pixels, size_t rowBytes) { |
| switch (info.colorType()) { |
| case kRGBA_8888_SkColorType: |
| case kBGRA_8888_SkColorType: |
| break; |
| default: |
| return; // nothing to do |
| } |
| |
| // SkColor is not necesarily RGBA or BGRA, but it is one of them on little-endian, |
| // and in either case, the alpha-byte is always in the same place, so we can safely call |
| // SkPreMultiplyColor() |
| // |
| SkColor* row = (SkColor*)pixels; |
| for (int y = 0; y < info.height(); ++y) { |
| for (int x = 0; x < info.width(); ++x) { |
| row[x] = SkPreMultiplyColor(row[x]); |
| } |
| } |
| } |
| |
| GrBackendObject SkImage_Gpu::onGetTextureHandle(bool flushPendingGrContextIO, |
| GrSurfaceOrigin* origin) const { |
| SkASSERT(fProxy); |
| |
| GrSurface* surface = fProxy->instantiate(fContext->resourceProvider()); |
| if (surface && surface->asTexture()) { |
| if (flushPendingGrContextIO) { |
| fContext->contextPriv().prepareSurfaceForExternalIO(fProxy.get()); |
| } |
| if (origin) { |
| *origin = fProxy->origin(); |
| } |
| return surface->asTexture()->getTextureHandle(); |
| } |
| return 0; |
| } |
| |
| GrTexture* SkImage_Gpu::onGetTexture() const { |
| GrTextureProxy* proxy = this->peekProxy(); |
| if (!proxy) { |
| return nullptr; |
| } |
| |
| return proxy->instantiate(fContext->resourceProvider()); |
| } |
| |
| bool SkImage_Gpu::onReadYUV8Planes(const SkISize sizes[3], void* const planes[3], |
| const size_t rowBytes[3], SkYUVColorSpace colorSpace) const { |
| if (GrTextureToYUVPlanes(fContext, fProxy, sizes, planes, rowBytes, colorSpace)) { |
| return true; |
| } |
| |
| return INHERITED::onReadYUV8Planes(sizes, planes, rowBytes, colorSpace); |
| } |
| |
| bool SkImage_Gpu::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB, |
| int srcX, int srcY, CachingHint) const { |
| if (!SkImageInfoValidConversion(dstInfo, this->onImageInfo())) { |
| return false; |
| } |
| |
| SkReadPixelsRec rec(dstInfo, dstPixels, dstRB, srcX, srcY); |
| if (!rec.trim(this->width(), this->height())) { |
| return false; |
| } |
| |
| // TODO: this seems to duplicate code in GrTextureContext::onReadPixels and |
| // GrRenderTargetContext::onReadPixels |
| uint32_t flags = 0; |
| if (kUnpremul_SkAlphaType == rec.fInfo.alphaType() && kPremul_SkAlphaType == fAlphaType) { |
| // let the GPU perform this transformation for us |
| flags = GrContextPriv::kUnpremul_PixelOpsFlag; |
| } |
| |
| sk_sp<GrSurfaceContext> sContext = fContext->contextPriv().makeWrappedSurfaceContext( |
| fProxy, |
| fColorSpace); |
| if (!sContext) { |
| return false; |
| } |
| |
| if (!sContext->readPixels(rec.fInfo, rec.fPixels, rec.fRowBytes, rec.fX, rec.fY, flags)) { |
| return false; |
| } |
| |
| // do we have to manually fix-up the alpha channel? |
| // src dst |
| // unpremul premul fix manually |
| // premul unpremul done by kUnpremul_PixelOpsFlag |
| // all other combos need to change. |
| // |
| // Should this be handled by Ganesh? todo:? |
| // |
| if (kPremul_SkAlphaType == rec.fInfo.alphaType() && kUnpremul_SkAlphaType == fAlphaType) { |
| apply_premul(rec.fInfo, rec.fPixels, rec.fRowBytes); |
| } |
| return true; |
| } |
| |
| sk_sp<SkImage> SkImage_Gpu::onMakeSubset(const SkIRect& subset) const { |
| GrSurfaceDesc desc = fProxy->desc(); |
| desc.fWidth = subset.width(); |
| desc.fHeight = subset.height(); |
| |
| sk_sp<GrSurfaceContext> sContext(fContext->contextPriv().makeDeferredSurfaceContext( |
| desc, |
| SkBackingFit::kExact, |
| fBudgeted)); |
| if (!sContext) { |
| return nullptr; |
| } |
| |
| if (!sContext->copy(fProxy.get(), subset, SkIPoint::Make(0, 0))) { |
| return nullptr; |
| } |
| |
| // MDB: this call is okay bc we know 'sContext' was kExact |
| return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID, |
| fAlphaType, sContext->asTextureProxyRef(), |
| fColorSpace, fBudgeted); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static sk_sp<SkImage> new_wrapped_texture_common(GrContext* ctx, |
| const GrBackendTexture& backendTex, |
| GrSurfaceOrigin origin, |
| SkAlphaType at, sk_sp<SkColorSpace> colorSpace, |
| GrWrapOwnership ownership, |
| SkImage::TextureReleaseProc releaseProc, |
| SkImage::ReleaseContext releaseCtx) { |
| if (backendTex.width() <= 0 || backendTex.height() <= 0) { |
| return nullptr; |
| } |
| |
| GrBackendTextureFlags flags = kNone_GrBackendTextureFlag; |
| sk_sp<GrTexture> tex = ctx->resourceProvider()->wrapBackendTexture(backendTex, |
| origin, |
| flags, |
| 0, |
| ownership); |
| if (!tex) { |
| return nullptr; |
| } |
| if (releaseProc) { |
| tex->setRelease(releaseProc, releaseCtx); |
| } |
| |
| const SkBudgeted budgeted = (kAdoptAndCache_GrWrapOwnership == ownership) |
| ? SkBudgeted::kYes : SkBudgeted::kNo; |
| sk_sp<GrTextureProxy> proxy(GrSurfaceProxy::MakeWrapped(std::move(tex))); |
| return sk_make_sp<SkImage_Gpu>(ctx, kNeedNewImageUniqueID, |
| at, std::move(proxy), std::move(colorSpace), budgeted); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromTexture(GrContext* ctx, const GrBackendTextureDesc& desc, |
| SkAlphaType at, sk_sp<SkColorSpace> cs, |
| TextureReleaseProc releaseP, ReleaseContext releaseC) { |
| SkASSERT(!(kRenderTarget_GrBackendTextureFlag & desc.fFlags)); |
| GrBackendTexture tex(desc, ctx->contextPriv().getBackend()); |
| return new_wrapped_texture_common(ctx, tex, desc.fOrigin, at, std::move(cs), |
| kBorrow_GrWrapOwnership, |
| releaseP, releaseC); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromAdoptedTexture(GrContext* ctx, const GrBackendTextureDesc& desc, |
| SkAlphaType at, sk_sp<SkColorSpace> cs) { |
| SkASSERT(!(kRenderTarget_GrBackendTextureFlag & desc.fFlags)); |
| GrBackendTexture tex(desc, ctx->contextPriv().getBackend()); |
| return new_wrapped_texture_common(ctx, tex, desc.fOrigin, at, std::move(cs), |
| kAdopt_GrWrapOwnership, |
| nullptr, nullptr); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromTexture(GrContext* ctx, |
| const GrBackendTexture& tex, GrSurfaceOrigin origin, |
| SkAlphaType at, sk_sp<SkColorSpace> cs, |
| TextureReleaseProc releaseP, ReleaseContext releaseC) { |
| return new_wrapped_texture_common(ctx, tex, origin, at, std::move(cs), kBorrow_GrWrapOwnership, |
| releaseP, releaseC); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromAdoptedTexture(GrContext* ctx, |
| const GrBackendTexture& tex, GrSurfaceOrigin origin, |
| SkAlphaType at, sk_sp<SkColorSpace> cs) { |
| return new_wrapped_texture_common(ctx, tex, origin, at, std::move(cs), kAdopt_GrWrapOwnership, |
| nullptr, nullptr); |
| } |
| |
| static GrBackendTexture make_backend_texture_from_handle(GrBackend backend, |
| int width, int height, |
| GrPixelConfig config, |
| GrBackendObject handle) { |
| |
| if (kOpenGL_GrBackend == backend) { |
| GrGLTextureInfo* glInfo = (GrGLTextureInfo*)(handle); |
| return GrBackendTexture(width, height, config, glInfo); |
| } else { |
| SkASSERT(kVulkan_GrBackend == backend); |
| GrVkImageInfo* vkInfo = (GrVkImageInfo*)(handle); |
| return GrBackendTexture(width, height, vkInfo); |
| } |
| } |
| |
| static sk_sp<SkImage> make_from_yuv_textures_copy(GrContext* ctx, SkYUVColorSpace colorSpace, |
| bool nv12, |
| const GrBackendObject yuvTextureHandles[], |
| const SkISize yuvSizes[], |
| GrSurfaceOrigin origin, |
| sk_sp<SkColorSpace> imageColorSpace) { |
| const SkBudgeted budgeted = SkBudgeted::kYes; |
| |
| if (yuvSizes[0].fWidth <= 0 || yuvSizes[0].fHeight <= 0 || yuvSizes[1].fWidth <= 0 || |
| yuvSizes[1].fHeight <= 0) { |
| return nullptr; |
| } |
| if (!nv12 && (yuvSizes[2].fWidth <= 0 || yuvSizes[2].fHeight <= 0)) { |
| return nullptr; |
| } |
| |
| const GrPixelConfig kConfig = nv12 ? kRGBA_8888_GrPixelConfig : kAlpha_8_GrPixelConfig; |
| |
| GrBackend backend = ctx->contextPriv().getBackend(); |
| GrBackendTexture yTex = make_backend_texture_from_handle(backend, |
| yuvSizes[0].fWidth, |
| yuvSizes[0].fHeight, |
| kConfig, |
| yuvTextureHandles[0]); |
| GrBackendTexture uTex = make_backend_texture_from_handle(backend, |
| yuvSizes[1].fWidth, |
| yuvSizes[1].fHeight, |
| kConfig, |
| yuvTextureHandles[1]); |
| |
| sk_sp<GrTextureProxy> yProxy = GrSurfaceProxy::MakeWrappedBackend(ctx, yTex, origin); |
| sk_sp<GrTextureProxy> uProxy = GrSurfaceProxy::MakeWrappedBackend(ctx, uTex, origin); |
| sk_sp<GrTextureProxy> vProxy; |
| |
| if (nv12) { |
| vProxy = uProxy; |
| } else { |
| GrBackendTexture vTex = make_backend_texture_from_handle(backend, |
| yuvSizes[2].fWidth, |
| yuvSizes[2].fHeight, |
| kConfig, |
| yuvTextureHandles[2]); |
| vProxy = GrSurfaceProxy::MakeWrappedBackend(ctx, vTex, origin); |
| } |
| if (!yProxy || !uProxy || !vProxy) { |
| return nullptr; |
| } |
| |
| const int width = yuvSizes[0].fWidth; |
| const int height = yuvSizes[0].fHeight; |
| |
| // Needs to be a render target in order to draw to it for the yuv->rgb conversion. |
| sk_sp<GrRenderTargetContext> renderTargetContext(ctx->makeDeferredRenderTargetContext( |
| SkBackingFit::kExact, |
| width, height, |
| kRGBA_8888_GrPixelConfig, |
| std::move(imageColorSpace), |
| 0, |
| origin)); |
| if (!renderTargetContext) { |
| return nullptr; |
| } |
| |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| paint.addColorFragmentProcessor( |
| GrYUVEffect::MakeYUVToRGB(ctx->resourceProvider(), |
| yProxy, uProxy, vProxy, |
| yuvSizes, colorSpace, nv12)); |
| |
| const SkRect rect = SkRect::MakeIWH(width, height); |
| |
| renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect); |
| |
| if (!renderTargetContext->asSurfaceProxy()) { |
| return nullptr; |
| } |
| ctx->contextPriv().flushSurfaceWrites(renderTargetContext->asSurfaceProxy()); |
| |
| // MDB: this call is okay bc we know 'renderTargetContext' was exact |
| return sk_make_sp<SkImage_Gpu>(ctx, kNeedNewImageUniqueID, |
| kOpaque_SkAlphaType, renderTargetContext->asTextureProxyRef(), |
| renderTargetContext->refColorSpace(), budgeted); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromYUVTexturesCopy(GrContext* ctx, SkYUVColorSpace colorSpace, |
| const GrBackendObject yuvTextureHandles[3], |
| const SkISize yuvSizes[3], GrSurfaceOrigin origin, |
| sk_sp<SkColorSpace> imageColorSpace) { |
| return make_from_yuv_textures_copy(ctx, colorSpace, false, yuvTextureHandles, yuvSizes, origin, |
| std::move(imageColorSpace)); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromNV12TexturesCopy(GrContext* ctx, SkYUVColorSpace colorSpace, |
| const GrBackendObject yuvTextureHandles[2], |
| const SkISize yuvSizes[2], |
| GrSurfaceOrigin origin, |
| sk_sp<SkColorSpace> imageColorSpace) { |
| return make_from_yuv_textures_copy(ctx, colorSpace, true, yuvTextureHandles, yuvSizes, origin, |
| std::move(imageColorSpace)); |
| } |
| |
| static sk_sp<SkImage> create_image_from_maker(GrContext* context, GrTextureMaker* maker, |
| SkAlphaType at, uint32_t id, |
| SkColorSpace* dstColorSpace) { |
| sk_sp<SkColorSpace> texColorSpace; |
| sk_sp<GrTextureProxy> proxy(maker->refTextureProxyForParams(GrSamplerParams::ClampNoFilter(), |
| dstColorSpace, |
| &texColorSpace, nullptr)); |
| if (!proxy) { |
| return nullptr; |
| } |
| return sk_make_sp<SkImage_Gpu>(context, id, at, |
| std::move(proxy), std::move(texColorSpace), SkBudgeted::kNo); |
| } |
| |
| sk_sp<SkImage> SkImage::makeTextureImage(GrContext* context, SkColorSpace* dstColorSpace) const { |
| if (!context) { |
| return nullptr; |
| } |
| if (GrTexture* peek = as_IB(this)->peekTexture()) { |
| return peek->getContext() == context ? sk_ref_sp(const_cast<SkImage*>(this)) : nullptr; |
| } |
| |
| if (SkImageCacherator* cacher = as_IB(this)->peekCacherator()) { |
| GrImageTextureMaker maker(context, cacher, this, kDisallow_CachingHint); |
| return create_image_from_maker(context, &maker, this->alphaType(), |
| this->uniqueID(), dstColorSpace); |
| } |
| |
| if (const SkBitmap* bmp = as_IB(this)->onPeekBitmap()) { |
| GrBitmapTextureMaker maker(context, *bmp); |
| return create_image_from_maker(context, &maker, this->alphaType(), |
| this->uniqueID(), dstColorSpace); |
| } |
| return nullptr; |
| } |
| |
| std::unique_ptr<SkCrossContextImageData> SkCrossContextImageData::MakeFromEncoded( |
| GrContext* context, sk_sp<SkData> encoded, SkColorSpace* dstColorSpace) { |
| sk_sp<SkImage> codecImage = SkImage::MakeFromEncoded(std::move(encoded)); |
| if (!codecImage) { |
| return nullptr; |
| } |
| |
| // Some backends or drivers don't support (safely) moving resources between contexts |
| if (!context->caps()->crossContextTextureSupport()) { |
| return std::unique_ptr<SkCrossContextImageData>( |
| new SkCCIDImage(std::move(codecImage))); |
| } |
| |
| sk_sp<SkImage> textureImage = codecImage->makeTextureImage(context, dstColorSpace); |
| if (!textureImage) { |
| // TODO: Force decode to raster here? Do mip-mapping, like getDeferredTextureImageData? |
| return std::unique_ptr<SkCrossContextImageData>( |
| new SkCCIDImage(std::move(codecImage))); |
| } |
| |
| // Crack open the gpu image, extract the backend data, stick it in the SkCCID |
| GrTexture* texture = as_IB(textureImage)->peekTexture(); |
| SkASSERT(texture); |
| |
| context->contextPriv().prepareSurfaceForExternalIO(as_IB(textureImage)->peekProxy()); |
| auto textureData = texture->texturePriv().detachBackendTexture(); |
| SkASSERT(textureData); |
| |
| GrBackend backend = context->contextPriv().getBackend(); |
| GrBackendTexture backendTex = make_backend_texture_from_handle(backend, |
| texture->width(), |
| texture->height(), |
| texture->config(), |
| textureData->getBackendObject()); |
| |
| SkImageInfo info = as_IB(textureImage)->onImageInfo(); |
| return std::unique_ptr<SkCrossContextImageData>(new SkCCIDBackendTexture( |
| backendTex, texture->origin(), std::move(textureData), |
| info.alphaType(), info.refColorSpace())); |
| } |
| |
| sk_sp<SkImage> SkCCIDBackendTexture::makeImage(GrContext* context) { |
| if (fTextureData) { |
| fTextureData->attachToContext(context); |
| } |
| |
| // This texture was created by Ganesh on another thread (see MakeFromEncoded, above). |
| // Thus, we can import it back into our cache and treat it as our own (again). |
| GrWrapOwnership ownership = kAdoptAndCache_GrWrapOwnership; |
| return new_wrapped_texture_common(context, fBackendTex, fOrigin, fAlphaType, |
| std::move(fColorSpace), ownership, nullptr, nullptr); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromCrossContextImageData( |
| GrContext* context, std::unique_ptr<SkCrossContextImageData> ccid) { |
| return ccid->makeImage(context); |
| } |
| |
| sk_sp<SkImage> SkImage::makeNonTextureImage() const { |
| if (!this->isTextureBacked()) { |
| return sk_ref_sp(const_cast<SkImage*>(this)); |
| } |
| SkImageInfo info = as_IB(this)->onImageInfo(); |
| size_t rowBytes = info.minRowBytes(); |
| size_t size = info.getSafeSize(rowBytes); |
| auto data = SkData::MakeUninitialized(size); |
| if (!data) { |
| return nullptr; |
| } |
| SkPixmap pm(info, data->writable_data(), rowBytes); |
| if (!this->readPixels(pm, 0, 0, kDisallow_CachingHint)) { |
| return nullptr; |
| } |
| return MakeRasterData(info, data, rowBytes); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| namespace { |
| struct MipMapLevelData { |
| void* fPixelData; |
| size_t fRowBytes; |
| }; |
| |
| struct DeferredTextureImage { |
| uint32_t fContextUniqueID; |
| // Right now, the destination color mode is only considered when generating mipmaps |
| SkDestinationSurfaceColorMode fColorMode; |
| // We don't store a SkImageInfo because it contains a ref-counted SkColorSpace. |
| int fWidth; |
| int fHeight; |
| SkColorType fColorType; |
| SkAlphaType fAlphaType; |
| void* fColorSpace; |
| size_t fColorSpaceSize; |
| int fMipMapLevelCount; |
| // The fMipMapLevelData array may contain more than 1 element. |
| // It contains fMipMapLevelCount elements. |
| // That means this struct's size is not known at compile-time. |
| MipMapLevelData fMipMapLevelData[1]; |
| }; |
| } // anonymous namespace |
| |
| static bool should_use_mip_maps(const SkImage::DeferredTextureImageUsageParams & param) { |
| // There is a bug in the mipmap pre-generation logic in use in getDeferredTextureImageData. |
| // This can cause runaway memory leaks, so we are disabling this path until we can |
| // investigate further. crbug.com/669775 |
| return false; |
| } |
| |
| namespace { |
| |
| class DTIBufferFiller |
| { |
| public: |
| explicit DTIBufferFiller(char* bufferAsCharPtr) |
| : bufferAsCharPtr_(bufferAsCharPtr) {} |
| |
| void fillMember(const void* source, size_t memberOffset, size_t size) { |
| memcpy(bufferAsCharPtr_ + memberOffset, source, size); |
| } |
| |
| private: |
| |
| char* bufferAsCharPtr_; |
| }; |
| } |
| |
| #define FILL_MEMBER(bufferFiller, member, source) \ |
| bufferFiller.fillMember(source, \ |
| offsetof(DeferredTextureImage, member), \ |
| sizeof(DeferredTextureImage::member)); |
| |
| size_t SkImage::getDeferredTextureImageData(const GrContextThreadSafeProxy& proxy, |
| const DeferredTextureImageUsageParams params[], |
| int paramCnt, void* buffer, |
| SkColorSpace* dstColorSpace) const { |
| // Extract relevant min/max values from the params array. |
| int lowestPreScaleMipLevel = params[0].fPreScaleMipLevel; |
| SkFilterQuality highestFilterQuality = params[0].fQuality; |
| bool useMipMaps = should_use_mip_maps(params[0]); |
| for (int i = 1; i < paramCnt; ++i) { |
| if (lowestPreScaleMipLevel > params[i].fPreScaleMipLevel) |
| lowestPreScaleMipLevel = params[i].fPreScaleMipLevel; |
| if (highestFilterQuality < params[i].fQuality) |
| highestFilterQuality = params[i].fQuality; |
| useMipMaps |= should_use_mip_maps(params[i]); |
| } |
| |
| const bool fillMode = SkToBool(buffer); |
| if (fillMode && !SkIsAlign8(reinterpret_cast<intptr_t>(buffer))) { |
| return 0; |
| } |
| |
| // Calculate scaling parameters. |
| bool isScaled = lowestPreScaleMipLevel != 0; |
| |
| SkISize scaledSize; |
| if (isScaled) { |
| // SkMipMap::ComputeLevelSize takes an index into an SkMipMap. SkMipMaps don't contain the |
| // base level, so to get an SkMipMap index we must subtract one from the GL MipMap level. |
| scaledSize = SkMipMap::ComputeLevelSize(this->width(), this->height(), |
| lowestPreScaleMipLevel - 1); |
| } else { |
| scaledSize = SkISize::Make(this->width(), this->height()); |
| } |
| |
| // We never want to scale at higher than SW medium quality, as SW medium matches GPU high. |
| SkFilterQuality scaleFilterQuality = highestFilterQuality; |
| if (scaleFilterQuality > kMedium_SkFilterQuality) { |
| scaleFilterQuality = kMedium_SkFilterQuality; |
| } |
| |
| const int maxTextureSize = proxy.fCaps->maxTextureSize(); |
| if (scaledSize.width() > maxTextureSize || scaledSize.height() > maxTextureSize) { |
| return 0; |
| } |
| |
| SkAutoPixmapStorage pixmap; |
| SkImageInfo info; |
| size_t pixelSize = 0; |
| if (!isScaled && this->peekPixels(&pixmap) && !pixmap.ctable()) { |
| info = pixmap.info(); |
| pixelSize = SkAlign8(pixmap.getSafeSize()); |
| if (!dstColorSpace) { |
| pixmap.setColorSpace(nullptr); |
| info = info.makeColorSpace(nullptr); |
| } |
| } else { |
| // Here we're just using presence of data to know whether there is a codec behind the image. |
| // In the future we will access the cacherator and get the exact data that we want to (e.g. |
| // yuv planes) upload. |
| sk_sp<SkData> data(this->refEncoded()); |
| if (!data && !this->peekPixels(nullptr)) { |
| return 0; |
| } |
| if (SkImageCacherator* cacher = as_IB(this)->peekCacherator()) { |
| // Generator backed image. Tweak info to trigger correct kind of decode. |
| SkImageCacherator::CachedFormat cacheFormat = cacher->chooseCacheFormat( |
| dstColorSpace, proxy.fCaps.get()); |
| info = cacher->buildCacheInfo(cacheFormat).makeWH(scaledSize.width(), |
| scaledSize.height()); |
| } else { |
| info = as_IB(this)->onImageInfo().makeWH(scaledSize.width(), scaledSize.height()); |
| if (!dstColorSpace) { |
| info = info.makeColorSpace(nullptr); |
| } |
| } |
| if (kIndex_8_SkColorType == info.colorType()) { |
| // Force Index8 to be N32 instead. Index8 is unsupported in Ganesh. |
| info = info.makeColorType(kN32_SkColorType); |
| } |
| pixelSize = SkAlign8(SkAutoPixmapStorage::AllocSize(info, nullptr)); |
| if (fillMode) { |
| pixmap.alloc(info); |
| if (isScaled) { |
| if (!this->scalePixels(pixmap, scaleFilterQuality, |
| SkImage::kDisallow_CachingHint)) { |
| return 0; |
| } |
| } else { |
| if (!this->readPixels(pixmap, 0, 0, SkImage::kDisallow_CachingHint)) { |
| return 0; |
| } |
| } |
| SkASSERT(!pixmap.ctable()); |
| } |
| } |
| int mipMapLevelCount = 1; |
| if (useMipMaps) { |
| // SkMipMap only deals with the mipmap levels it generates, which does |
| // not include the base level. |
| // That means it generates and holds levels 1-x instead of 0-x. |
| // So the total mipmap level count is 1 more than what |
| // SkMipMap::ComputeLevelCount returns. |
| mipMapLevelCount = SkMipMap::ComputeLevelCount(scaledSize.width(), scaledSize.height()) + 1; |
| |
| // We already initialized pixelSize to the size of the base level. |
| // SkMipMap will generate the extra mipmap levels. Their sizes need to |
| // be added to the total. |
| // Index 0 here does not refer to the base mipmap level -- it is |
| // SkMipMap's first generated mipmap level (level 1). |
| for (int currentMipMapLevelIndex = mipMapLevelCount - 2; currentMipMapLevelIndex >= 0; |
| currentMipMapLevelIndex--) { |
| SkISize mipSize = SkMipMap::ComputeLevelSize(scaledSize.width(), scaledSize.height(), |
| currentMipMapLevelIndex); |
| SkImageInfo mipInfo = info.makeWH(mipSize.fWidth, mipSize.fHeight); |
| pixelSize += SkAlign8(SkAutoPixmapStorage::AllocSize(mipInfo, nullptr)); |
| } |
| } |
| size_t size = 0; |
| size_t dtiSize = SkAlign8(sizeof(DeferredTextureImage)); |
| size += dtiSize; |
| size += (mipMapLevelCount - 1) * sizeof(MipMapLevelData); |
| // We subtract 1 because DeferredTextureImage already includes the base |
| // level in its size |
| size_t pixelOffset = size; |
| size += pixelSize; |
| size_t colorSpaceOffset = 0; |
| size_t colorSpaceSize = 0; |
| SkColorSpaceTransferFn fn; |
| if (info.colorSpace()) { |
| SkASSERT(dstColorSpace); |
| colorSpaceOffset = size; |
| colorSpaceSize = info.colorSpace()->writeToMemory(nullptr); |
| size += colorSpaceSize; |
| } else if (this->colorSpace() && this->colorSpace()->isNumericalTransferFn(&fn)) { |
| // In legacy mode, preserve the color space tag on the SkImage. This is only |
| // supported if the color space has a parametric transfer function. |
| SkASSERT(!dstColorSpace); |
| colorSpaceOffset = size; |
| colorSpaceSize = this->colorSpace()->writeToMemory(nullptr); |
| size += colorSpaceSize; |
| } |
| if (!fillMode) { |
| return size; |
| } |
| char* bufferAsCharPtr = reinterpret_cast<char*>(buffer); |
| char* pixelsAsCharPtr = bufferAsCharPtr + pixelOffset; |
| void* pixels = pixelsAsCharPtr; |
| |
| memcpy(reinterpret_cast<void*>(SkAlign8(reinterpret_cast<uintptr_t>(pixelsAsCharPtr))), |
| pixmap.addr(), pixmap.getSafeSize()); |
| |
| // If the context has sRGB support, and we're intending to render to a surface with an attached |
| // color space, and the image has an sRGB-like color space attached, then use our gamma (sRGB) |
| // aware mip-mapping. |
| SkDestinationSurfaceColorMode colorMode = SkDestinationSurfaceColorMode::kLegacy; |
| if (proxy.fCaps->srgbSupport() && SkToBool(dstColorSpace) && |
| info.colorSpace() && info.colorSpace()->gammaCloseToSRGB()) { |
| colorMode = SkDestinationSurfaceColorMode::kGammaAndColorSpaceAware; |
| } |
| |
| SkASSERT(info == pixmap.info()); |
| size_t rowBytes = pixmap.rowBytes(); |
| static_assert(std::is_standard_layout<DeferredTextureImage>::value, |
| "offsetof, which we use below, requires the type have standard layout"); |
| auto dtiBufferFiller = DTIBufferFiller{bufferAsCharPtr}; |
| FILL_MEMBER(dtiBufferFiller, fColorMode, &colorMode); |
| FILL_MEMBER(dtiBufferFiller, fContextUniqueID, &proxy.fContextUniqueID); |
| int width = info.width(); |
| FILL_MEMBER(dtiBufferFiller, fWidth, &width); |
| int height = info.height(); |
| FILL_MEMBER(dtiBufferFiller, fHeight, &height); |
| SkColorType colorType = info.colorType(); |
| FILL_MEMBER(dtiBufferFiller, fColorType, &colorType); |
| SkAlphaType alphaType = info.alphaType(); |
| FILL_MEMBER(dtiBufferFiller, fAlphaType, &alphaType); |
| FILL_MEMBER(dtiBufferFiller, fMipMapLevelCount, &mipMapLevelCount); |
| memcpy(bufferAsCharPtr + offsetof(DeferredTextureImage, fMipMapLevelData[0].fPixelData), |
| &pixels, sizeof(pixels)); |
| memcpy(bufferAsCharPtr + offsetof(DeferredTextureImage, fMipMapLevelData[0].fRowBytes), |
| &rowBytes, sizeof(rowBytes)); |
| if (colorSpaceSize) { |
| void* colorSpace = bufferAsCharPtr + colorSpaceOffset; |
| FILL_MEMBER(dtiBufferFiller, fColorSpace, &colorSpace); |
| FILL_MEMBER(dtiBufferFiller, fColorSpaceSize, &colorSpaceSize); |
| if (info.colorSpace()) { |
| info.colorSpace()->writeToMemory(bufferAsCharPtr + colorSpaceOffset); |
| } else { |
| SkASSERT(this->colorSpace() && this->colorSpace()->isNumericalTransferFn(&fn)); |
| SkASSERT(!dstColorSpace); |
| this->colorSpace()->writeToMemory(bufferAsCharPtr + colorSpaceOffset); |
| } |
| } else { |
| memset(bufferAsCharPtr + offsetof(DeferredTextureImage, fColorSpace), |
| 0, sizeof(DeferredTextureImage::fColorSpace)); |
| memset(bufferAsCharPtr + offsetof(DeferredTextureImage, fColorSpaceSize), |
| 0, sizeof(DeferredTextureImage::fColorSpaceSize)); |
| } |
| |
| // Fill in the mipmap levels if they exist |
| char* mipLevelPtr = pixelsAsCharPtr + SkAlign8(pixmap.getSafeSize()); |
| |
| if (useMipMaps) { |
| static_assert(std::is_standard_layout<MipMapLevelData>::value, |
| "offsetof, which we use below, requires the type have a standard layout"); |
| |
| std::unique_ptr<SkMipMap> mipmaps(SkMipMap::Build(pixmap, colorMode, nullptr)); |
| // SkMipMap holds only the mipmap levels it generates. |
| // A programmer can use the data they provided to SkMipMap::Build as level 0. |
| // So the SkMipMap provides levels 1-x but it stores them in its own |
| // range 0-(x-1). |
| for (int generatedMipLevelIndex = 0; generatedMipLevelIndex < mipMapLevelCount - 1; |
| generatedMipLevelIndex++) { |
| SkMipMap::Level mipLevel; |
| mipmaps->getLevel(generatedMipLevelIndex, &mipLevel); |
| |
| // Make sure the mipmap data is after the start of the buffer |
| SkASSERT(mipLevelPtr > bufferAsCharPtr); |
| // Make sure the mipmap data starts before the end of the buffer |
| SkASSERT(mipLevelPtr < bufferAsCharPtr + pixelOffset + pixelSize); |
| // Make sure the mipmap data ends before the end of the buffer |
| SkASSERT(mipLevelPtr + mipLevel.fPixmap.getSafeSize() <= |
| bufferAsCharPtr + pixelOffset + pixelSize); |
| |
| // getSafeSize includes rowbyte padding except for the last row, |
| // right? |
| |
| memcpy(mipLevelPtr, mipLevel.fPixmap.addr(), mipLevel.fPixmap.getSafeSize()); |
| |
| memcpy(bufferAsCharPtr + offsetof(DeferredTextureImage, fMipMapLevelData) + |
| sizeof(MipMapLevelData) * (generatedMipLevelIndex + 1) + |
| offsetof(MipMapLevelData, fPixelData), &mipLevelPtr, sizeof(void*)); |
| size_t rowBytes = mipLevel.fPixmap.rowBytes(); |
| memcpy(bufferAsCharPtr + offsetof(DeferredTextureImage, fMipMapLevelData) + |
| sizeof(MipMapLevelData) * (generatedMipLevelIndex + 1) + |
| offsetof(MipMapLevelData, fRowBytes), &rowBytes, sizeof(rowBytes)); |
| |
| mipLevelPtr += SkAlign8(mipLevel.fPixmap.getSafeSize()); |
| } |
| } |
| return size; |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromDeferredTextureImageData(GrContext* context, const void* data, |
| SkBudgeted budgeted) { |
| if (!data) { |
| return nullptr; |
| } |
| const DeferredTextureImage* dti = reinterpret_cast<const DeferredTextureImage*>(data); |
| |
| if (!context || context->uniqueID() != dti->fContextUniqueID) { |
| return nullptr; |
| } |
| int mipLevelCount = dti->fMipMapLevelCount; |
| SkASSERT(mipLevelCount >= 1); |
| sk_sp<SkColorSpace> colorSpace; |
| if (dti->fColorSpaceSize) { |
| colorSpace = SkColorSpace::Deserialize(dti->fColorSpace, dti->fColorSpaceSize); |
| } |
| SkImageInfo info = SkImageInfo::Make(dti->fWidth, dti->fHeight, |
| dti->fColorType, dti->fAlphaType, colorSpace); |
| if (mipLevelCount == 1) { |
| SkPixmap pixmap; |
| pixmap.reset(info, dti->fMipMapLevelData[0].fPixelData, dti->fMipMapLevelData[0].fRowBytes); |
| |
| // Use the NoCheck version because we have already validated the SkImage. The |data| |
| // used to be an SkImage before calling getDeferredTextureImageData(). In legacy mode, |
| // getDeferredTextureImageData() will allow parametric transfer functions for images |
| // generated from codecs - which is slightly more lenient than typical SkImage |
| // constructors. |
| sk_sp<GrTextureProxy> proxy(GrUploadPixmapToTextureProxyNoCheck( |
| context->resourceProvider(), pixmap, budgeted)); |
| if (!proxy) { |
| return nullptr; |
| } |
| return sk_make_sp<SkImage_Gpu>(context, kNeedNewImageUniqueID, pixmap.alphaType(), |
| std::move(proxy), std::move(colorSpace), budgeted); |
| } else { |
| std::unique_ptr<GrMipLevel[]> texels(new GrMipLevel[mipLevelCount]); |
| for (int i = 0; i < mipLevelCount; i++) { |
| texels[i].fPixels = dti->fMipMapLevelData[i].fPixelData; |
| texels[i].fRowBytes = dti->fMipMapLevelData[i].fRowBytes; |
| } |
| |
| return SkImage::MakeTextureFromMipMap(context, info, texels.get(), |
| mipLevelCount, SkBudgeted::kYes, |
| dti->fColorMode); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| sk_sp<SkImage> SkImage::MakeTextureFromMipMap(GrContext* ctx, const SkImageInfo& info, |
| const GrMipLevel* texels, int mipLevelCount, |
| SkBudgeted budgeted, |
| SkDestinationSurfaceColorMode colorMode) { |
| SkASSERT(mipLevelCount >= 1); |
| if (!ctx) { |
| return nullptr; |
| } |
| sk_sp<GrTextureProxy> proxy(GrUploadMipMapToTextureProxy(ctx, info, texels, mipLevelCount, |
| colorMode)); |
| if (!proxy) { |
| return nullptr; |
| } |
| |
| SkASSERT(proxy->priv().isExact()); |
| return sk_make_sp<SkImage_Gpu>(ctx, kNeedNewImageUniqueID, |
| info.alphaType(), std::move(proxy), |
| info.refColorSpace(), budgeted); |
| } |
| |
| sk_sp<SkImage> SkImage_Gpu::onMakeColorSpace(sk_sp<SkColorSpace> colorSpace) const { |
| sk_sp<SkColorSpace> srcSpace = fColorSpace ? fColorSpace : SkColorSpace::MakeSRGB(); |
| auto xform = GrNonlinearColorSpaceXformEffect::Make(srcSpace.get(), colorSpace.get()); |
| if (!xform) { |
| return sk_ref_sp(const_cast<SkImage_Gpu*>(this)); |
| } |
| |
| sk_sp<GrRenderTargetContext> renderTargetContext(fContext->makeDeferredRenderTargetContext( |
| SkBackingFit::kExact, this->width(), this->height(), kRGBA_8888_GrPixelConfig, nullptr)); |
| if (!renderTargetContext) { |
| return nullptr; |
| } |
| |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| paint.addColorTextureProcessor(fContext->resourceProvider(), fProxy, nullptr, SkMatrix::I()); |
| paint.addColorFragmentProcessor(std::move(xform)); |
| |
| const SkRect rect = SkRect::MakeIWH(this->width(), this->height()); |
| |
| renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect); |
| |
| if (!renderTargetContext->asTextureProxy()) { |
| return nullptr; |
| } |
| |
| // MDB: this call is okay bc we know 'renderTargetContext' was exact |
| return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID, |
| fAlphaType, renderTargetContext->asTextureProxyRef(), |
| std::move(colorSpace), fBudgeted); |
| |
| } |
