| /* |
| * 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 "GrCaps.h" |
| #include "GrContext.h" |
| #include "GrDrawContext.h" |
| #include "GrImageIDTextureAdjuster.h" |
| #include "GrTexturePriv.h" |
| #include "effects/GrYUVEffect.h" |
| #include "SkCanvas.h" |
| #include "SkBitmapCache.h" |
| #include "SkGrPriv.h" |
| #include "SkImage_Gpu.h" |
| #include "SkMipMap.h" |
| #include "SkPixelRef.h" |
| |
| SkImage_Gpu::SkImage_Gpu(int w, int h, uint32_t uniqueID, SkAlphaType at, GrTexture* tex, |
| sk_sp<SkColorSpace> colorSpace, SkBudgeted budgeted) |
| : INHERITED(w, h, uniqueID) |
| , fTexture(SkRef(tex)) |
| , fAlphaType(at) |
| , fBudgeted(budgeted) |
| , fColorSpace(std::move(colorSpace)) |
| , fAddedRasterVersionToCache(false) |
| { |
| SkASSERT(tex->width() == w); |
| SkASSERT(tex->height() == h); |
| } |
| |
| SkImage_Gpu::~SkImage_Gpu() { |
| if (fAddedRasterVersionToCache.load()) { |
| SkNotifyBitmapGenIDIsStale(this->uniqueID()); |
| } |
| } |
| |
| extern void SkTextureImageApplyBudgetedDecision(SkImage* image) { |
| if (image->isTextureBacked()) { |
| ((SkImage_Gpu*)image)->applyBudgetDecision(); |
| } |
| } |
| |
| SkImageInfo SkImage_Gpu::onImageInfo() const { |
| SkColorType ct; |
| if (!GrPixelConfigToColorType(fTexture->config(), &ct)) { |
| ct = kUnknown_SkColorType; |
| } |
| return SkImageInfo::Make(fTexture->width(), fTexture->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, CachingHint chint) const { |
| if (SkBitmapCache::Find(this->uniqueID(), dst)) { |
| SkASSERT(dst->getGenerationID() == this->uniqueID()); |
| SkASSERT(dst->isImmutable()); |
| SkASSERT(dst->getPixels()); |
| return true; |
| } |
| |
| if (!dst->tryAllocPixels(make_info(this->width(), this->height(), this->alphaType(), |
| this->fColorSpace))) { |
| return false; |
| } |
| if (!fTexture->readPixels(0, 0, dst->width(), dst->height(), kSkia8888_GrPixelConfig, |
| dst->getPixels(), dst->rowBytes())) { |
| return false; |
| } |
| |
| dst->pixelRef()->setImmutableWithID(this->uniqueID()); |
| if (kAllow_CachingHint == chint) { |
| SkBitmapCache::Add(this->uniqueID(), *dst); |
| fAddedRasterVersionToCache.store(true); |
| } |
| return true; |
| } |
| |
| GrTexture* SkImage_Gpu::asTextureRef(GrContext* ctx, const GrTextureParams& params, |
| SkSourceGammaTreatment gammaTreatment) const { |
| GrTextureAdjuster adjuster(this->peekTexture(), this->alphaType(), this->bounds(), this->uniqueID(), |
| this->onImageInfo().colorSpace()); |
| return adjuster.refTextureSafeForParams(params, gammaTreatment, nullptr); |
| } |
| |
| 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]); |
| } |
| } |
| } |
| |
| bool SkImage_Gpu::onReadPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, |
| int srcX, int srcY, CachingHint) const { |
| GrPixelConfig config = SkImageInfo2GrPixelConfig(info, *fTexture->getContext()->caps()); |
| uint32_t flags = 0; |
| if (kUnpremul_SkAlphaType == info.alphaType() && kPremul_SkAlphaType == fAlphaType) { |
| // let the GPU perform this transformation for us |
| flags = GrContext::kUnpremul_PixelOpsFlag; |
| } |
| if (!fTexture->readPixels(srcX, srcY, info.width(), info.height(), config, |
| pixels, rowBytes, 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 == info.alphaType() && kUnpremul_SkAlphaType == fAlphaType) { |
| apply_premul(info, pixels, rowBytes); |
| } |
| return true; |
| } |
| |
| sk_sp<SkImage> SkImage_Gpu::onMakeSubset(const SkIRect& subset) const { |
| GrContext* ctx = fTexture->getContext(); |
| GrSurfaceDesc desc = fTexture->desc(); |
| desc.fWidth = subset.width(); |
| desc.fHeight = subset.height(); |
| |
| sk_sp<GrTexture> subTx(ctx->textureProvider()->createTexture(desc, fBudgeted)); |
| if (!subTx) { |
| return nullptr; |
| } |
| ctx->copySurface(subTx.get(), fTexture, subset, SkIPoint::Make(0, 0)); |
| return sk_make_sp<SkImage_Gpu>(desc.fWidth, desc.fHeight, kNeedNewImageUniqueID, |
| fAlphaType, subTx.get(), fColorSpace, fBudgeted); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static sk_sp<SkImage> new_wrapped_texture_common(GrContext* ctx, const GrBackendTextureDesc& desc, |
| SkAlphaType at, sk_sp<SkColorSpace> colorSpace, |
| GrWrapOwnership ownership, |
| SkImage::TextureReleaseProc releaseProc, |
| SkImage::ReleaseContext releaseCtx) { |
| if (desc.fWidth <= 0 || desc.fHeight <= 0) { |
| return nullptr; |
| } |
| SkAutoTUnref<GrTexture> tex(ctx->textureProvider()->wrapBackendTexture(desc, ownership)); |
| if (!tex) { |
| return nullptr; |
| } |
| if (releaseProc) { |
| tex->setRelease(releaseProc, releaseCtx); |
| } |
| |
| const SkBudgeted budgeted = SkBudgeted::kNo; |
| return sk_make_sp<SkImage_Gpu>(desc.fWidth, desc.fHeight, kNeedNewImageUniqueID, |
| at, tex, colorSpace, budgeted); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromTexture(GrContext* ctx, const GrBackendTextureDesc& desc, |
| SkAlphaType at, sk_sp<SkColorSpace> cs, |
| TextureReleaseProc releaseP, ReleaseContext releaseC) { |
| return new_wrapped_texture_common(ctx, desc, at, std::move(cs), kBorrow_GrWrapOwnership, |
| releaseP, releaseC); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeFromAdoptedTexture(GrContext* ctx, const GrBackendTextureDesc& desc, |
| SkAlphaType at, sk_sp<SkColorSpace> cs) { |
| return new_wrapped_texture_common(ctx, desc, at, std::move(cs), kAdopt_GrWrapOwnership, |
| nullptr, nullptr); |
| } |
| |
| 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; |
| |
| GrBackendTextureDesc yDesc; |
| yDesc.fConfig = kConfig; |
| yDesc.fOrigin = origin; |
| yDesc.fSampleCnt = 0; |
| yDesc.fTextureHandle = yuvTextureHandles[0]; |
| yDesc.fWidth = yuvSizes[0].fWidth; |
| yDesc.fHeight = yuvSizes[0].fHeight; |
| |
| GrBackendTextureDesc uDesc; |
| uDesc.fConfig = kConfig; |
| uDesc.fOrigin = origin; |
| uDesc.fSampleCnt = 0; |
| uDesc.fTextureHandle = yuvTextureHandles[1]; |
| uDesc.fWidth = yuvSizes[1].fWidth; |
| uDesc.fHeight = yuvSizes[1].fHeight; |
| |
| sk_sp<GrTexture> yTex( |
| ctx->textureProvider()->wrapBackendTexture(yDesc, kBorrow_GrWrapOwnership)); |
| sk_sp<GrTexture> uTex( |
| ctx->textureProvider()->wrapBackendTexture(uDesc, kBorrow_GrWrapOwnership)); |
| sk_sp<GrTexture> vTex; |
| if (nv12) { |
| vTex = uTex; |
| } else { |
| GrBackendTextureDesc vDesc; |
| vDesc.fConfig = kConfig; |
| vDesc.fOrigin = origin; |
| vDesc.fSampleCnt = 0; |
| vDesc.fTextureHandle = yuvTextureHandles[2]; |
| vDesc.fWidth = yuvSizes[2].fWidth; |
| vDesc.fHeight = yuvSizes[2].fHeight; |
| |
| vTex = sk_sp<GrTexture>( |
| ctx->textureProvider()->wrapBackendTexture(vDesc, kBorrow_GrWrapOwnership)); |
| } |
| if (!yTex || !uTex || !vTex) { |
| 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<GrDrawContext> drawContext(ctx->makeDrawContext(SkBackingFit::kExact, |
| width, height, |
| kRGBA_8888_GrPixelConfig, |
| std::move(imageColorSpace), |
| 0, |
| origin)); |
| if (!drawContext) { |
| return nullptr; |
| } |
| |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode); |
| paint.addColorFragmentProcessor( |
| GrYUVEffect::MakeYUVToRGB(yTex.get(), uTex.get(), vTex.get(), yuvSizes, colorSpace, nv12)); |
| |
| const SkRect rect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)); |
| |
| drawContext->drawRect(GrNoClip(), paint, SkMatrix::I(), rect); |
| ctx->flushSurfaceWrites(drawContext->accessRenderTarget()); |
| return sk_make_sp<SkImage_Gpu>(width, height, kNeedNewImageUniqueID, |
| kOpaque_SkAlphaType, drawContext->asTexture().get(), |
| sk_ref_sp(drawContext->getColorSpace()), 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(GrTextureMaker* maker, SkAlphaType at, uint32_t id) { |
| SkAutoTUnref<GrTexture> texture(maker->refTextureForParams(GrTextureParams::ClampNoFilter(), |
| SkSourceGammaTreatment::kRespect)); |
| if (!texture) { |
| return nullptr; |
| } |
| return sk_make_sp<SkImage_Gpu>(texture->width(), texture->height(), id, at, texture, |
| sk_ref_sp(maker->getColorSpace()), SkBudgeted::kNo); |
| } |
| |
| sk_sp<SkImage> SkImage::makeTextureImage(GrContext *context) 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(&maker, this->alphaType(), this->uniqueID()); |
| } |
| |
| if (const SkBitmap* bmp = as_IB(this)->onPeekBitmap()) { |
| GrBitmapTextureMaker maker(context, *bmp); |
| return create_image_from_maker(&maker, this->alphaType(), this->uniqueID()); |
| } |
| return nullptr; |
| } |
| |
| 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); |
| } |
| |
| sk_sp<SkImage> SkImage::MakeTextureFromPixmap(GrContext* ctx, const SkPixmap& pixmap, |
| SkBudgeted budgeted) { |
| if (!ctx) { |
| return nullptr; |
| } |
| SkAutoTUnref<GrTexture> texture(GrUploadPixmapToTexture(ctx, pixmap, budgeted)); |
| if (!texture) { |
| return nullptr; |
| } |
| return sk_make_sp<SkImage_Gpu>(texture->width(), texture->height(), kNeedNewImageUniqueID, |
| pixmap.alphaType(), texture, |
| sk_ref_sp(pixmap.info().colorSpace()), budgeted); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| namespace { |
| struct MipMapLevelData { |
| void* fPixelData; |
| size_t fRowBytes; |
| }; |
| |
| struct DeferredTextureImage { |
| uint32_t fContextUniqueID; |
| // Right now, the gamma treatment is only considered when generating mipmaps |
| SkSourceGammaTreatment fGammaTreatment; |
| // 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 fColorTableCnt; |
| uint32_t* fColorTableData; |
| 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, |
| SkSourceGammaTreatment gammaTreatment) 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; |
| size_t ctSize = 0; |
| int ctCount = 0; |
| if (!isScaled && this->peekPixels(&pixmap)) { |
| info = pixmap.info(); |
| pixelSize = SkAlign8(pixmap.getSafeSize()); |
| if (pixmap.ctable()) { |
| ctCount = pixmap.ctable()->count(); |
| ctSize = SkAlign8(pixmap.ctable()->count() * 4); |
| } |
| } 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; |
| } |
| info = SkImageInfo::MakeN32(scaledSize.width(), scaledSize.height(), this->alphaType()); |
| 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()); |
| } |
| } |
| SkAlphaType at = this->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType; |
| 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 = SkImageInfo::MakeN32(mipSize.fWidth, mipSize.fHeight, at); |
| 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 ctOffset = size; |
| size += ctSize; |
| size_t colorSpaceOffset = 0; |
| size_t colorSpaceSize = 0; |
| if (info.colorSpace()) { |
| colorSpaceOffset = size; |
| colorSpaceSize = info.colorSpace()->writeToMemory(nullptr); |
| size += colorSpaceSize; |
| } |
| if (!fillMode) { |
| return size; |
| } |
| char* bufferAsCharPtr = reinterpret_cast<char*>(buffer); |
| char* pixelsAsCharPtr = bufferAsCharPtr + pixelOffset; |
| void* pixels = pixelsAsCharPtr; |
| void* ct = nullptr; |
| if (ctSize) { |
| ct = bufferAsCharPtr + ctOffset; |
| } |
| |
| memcpy(reinterpret_cast<void*>(SkAlign8(reinterpret_cast<uintptr_t>(pixelsAsCharPtr))), |
| pixmap.addr(), pixmap.getSafeSize()); |
| if (ctSize) { |
| memcpy(ct, pixmap.ctable()->readColors(), ctSize); |
| } |
| |
| 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, fGammaTreatment, &gammaTreatment); |
| 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, fColorTableCnt, &ctCount); |
| FILL_MEMBER(dtiBufferFiller, fColorTableData, &ct); |
| 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); |
| info.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"); |
| |
| SkAutoTDelete<SkMipMap> mipmaps(SkMipMap::Build(pixmap, gammaTreatment, 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++) { |
| SkISize mipSize = SkMipMap::ComputeLevelSize(scaledSize.width(), scaledSize.height(), |
| generatedMipLevelIndex); |
| |
| SkImageInfo mipInfo = SkImageInfo::MakeN32(mipSize.fWidth, mipSize.fHeight, at); |
| 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; |
| } |
| SkAutoTUnref<SkColorTable> colorTable; |
| if (dti->fColorTableCnt) { |
| SkASSERT(dti->fColorTableData); |
| colorTable.reset(new SkColorTable(dti->fColorTableData, dti->fColorTableCnt)); |
| } |
| 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, colorTable.get()); |
| return SkImage::MakeTextureFromPixmap(context, pixmap, budgeted); |
| } else { |
| SkAutoTDeleteArray<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->fGammaTreatment); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| sk_sp<SkImage> SkImage::MakeTextureFromMipMap(GrContext* ctx, const SkImageInfo& info, |
| const GrMipLevel* texels, int mipLevelCount, |
| SkBudgeted budgeted, |
| SkSourceGammaTreatment gammaTreatment) { |
| if (!ctx) { |
| return nullptr; |
| } |
| SkAutoTUnref<GrTexture> texture(GrUploadMipMapToTexture(ctx, info, texels, mipLevelCount)); |
| if (!texture) { |
| return nullptr; |
| } |
| texture->texturePriv().setGammaTreatment(gammaTreatment); |
| return sk_make_sp<SkImage_Gpu>(texture->width(), texture->height(), kNeedNewImageUniqueID, |
| info.alphaType(), texture, sk_ref_sp(info.colorSpace()), |
| budgeted); |
| } |
