| /* |
| * 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 "SkSpecialImage.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrTexture.h" |
| #include "GrTextureParams.h" |
| #include "SkGr.h" |
| #endif |
| |
| #include "SkBitmapCache.h" |
| #include "SkCanvas.h" |
| #include "SkImage_Base.h" |
| #include "SkSpecialSurface.h" |
| #include "SkSurfacePriv.h" |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| class SkSpecialImage_Base : public SkSpecialImage { |
| public: |
| SkSpecialImage_Base(const SkIRect& subset, uint32_t uniqueID, const SkSurfaceProps* props) |
| : INHERITED(subset, uniqueID, props) { |
| } |
| ~SkSpecialImage_Base() override { } |
| |
| virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const = 0; |
| |
| virtual bool onGetROPixels(SkBitmap*) const = 0; |
| |
| virtual GrTexture* onPeekTexture() const { return nullptr; } |
| |
| #if SK_SUPPORT_GPU |
| virtual sk_sp<GrTexture> onAsTextureRef(GrContext* context) const = 0; |
| #endif |
| |
| // Delete this entry point ASAP (see skbug.com/4965) |
| virtual bool getBitmapDeprecated(SkBitmap* result) const = 0; |
| |
| virtual sk_sp<SkSpecialImage> onMakeSubset(const SkIRect& subset) const = 0; |
| |
| virtual sk_sp<SkSpecialSurface> onMakeSurface(const SkImageInfo& info) const = 0; |
| |
| virtual sk_sp<SkImage> onMakeTightSubset(const SkIRect& subset) const = 0; |
| |
| virtual sk_sp<SkSurface> onMakeTightSurface(const SkImageInfo& info) const = 0; |
| |
| private: |
| typedef SkSpecialImage INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| static inline const SkSpecialImage_Base* as_SIB(const SkSpecialImage* image) { |
| return static_cast<const SkSpecialImage_Base*>(image); |
| } |
| |
| SkSpecialImage::SkSpecialImage(const SkIRect& subset, |
| uint32_t uniqueID, |
| const SkSurfaceProps* props) |
| : fProps(SkSurfacePropsCopyOrDefault(props)) |
| , fSubset(subset) |
| , fUniqueID(kNeedNewImageUniqueID_SpecialImage == uniqueID ? SkNextID::ImageID() : uniqueID) { |
| } |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::makeTextureImage(GrContext* context) { |
| #if SK_SUPPORT_GPU |
| if (!context) { |
| return nullptr; |
| } |
| if (GrTexture* peek = as_SIB(this)->onPeekTexture()) { |
| return peek->getContext() == context ? sk_sp<SkSpecialImage>(SkRef(this)) : nullptr; |
| } |
| |
| SkBitmap bmp; |
| if (!this->internal_getBM(&bmp)) { |
| return nullptr; |
| } |
| |
| if (bmp.empty()) { |
| return SkSpecialImage::MakeFromRaster(SkIRect::MakeEmpty(), bmp, &this->props()); |
| } |
| |
| sk_sp<GrTexture> resultTex(GrRefCachedBitmapTexture(context, |
| bmp, |
| GrTextureParams::ClampNoFilter(), |
| SkSourceGammaTreatment::kRespect)); |
| if (!resultTex) { |
| return nullptr; |
| } |
| |
| SkAlphaType at = this->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType; |
| |
| return SkSpecialImage::MakeFromGpu(SkIRect::MakeWH(resultTex->width(), resultTex->height()), |
| this->uniqueID(), |
| resultTex, &this->props(), at); |
| #else |
| return nullptr; |
| #endif |
| } |
| |
| void SkSpecialImage::draw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const { |
| return as_SIB(this)->onDraw(canvas, x, y, paint); |
| } |
| |
| bool SkSpecialImage::getROPixels(SkBitmap* bm) const { |
| return as_SIB(this)->onGetROPixels(bm); |
| } |
| |
| bool SkSpecialImage::isTextureBacked() const { |
| #if SK_SUPPORT_GPU |
| return as_SIB(this)->onPeekTexture() && as_SIB(this)->onPeekTexture()->getContext(); |
| #else |
| return false; |
| #endif |
| } |
| |
| GrContext* SkSpecialImage::getContext() const { |
| #if SK_SUPPORT_GPU |
| GrTexture* texture = as_SIB(this)->onPeekTexture(); |
| |
| if (texture) { |
| return texture->getContext(); |
| } |
| #endif |
| return nullptr; |
| } |
| |
| #if SK_SUPPORT_GPU |
| sk_sp<GrTexture> SkSpecialImage::asTextureRef(GrContext* context) const { |
| return as_SIB(this)->onAsTextureRef(context); |
| } |
| #endif |
| |
| sk_sp<SkSpecialSurface> SkSpecialImage::makeSurface(const SkImageInfo& info) const { |
| return as_SIB(this)->onMakeSurface(info); |
| } |
| |
| sk_sp<SkSurface> SkSpecialImage::makeTightSurface(const SkImageInfo& info) const { |
| return as_SIB(this)->onMakeTightSurface(info); |
| } |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::makeSubset(const SkIRect& subset) const { |
| return as_SIB(this)->onMakeSubset(subset); |
| } |
| |
| sk_sp<SkImage> SkSpecialImage::makeTightSubset(const SkIRect& subset) const { |
| return as_SIB(this)->onMakeTightSubset(subset); |
| } |
| |
| #if SK_SUPPORT_GPU |
| #include "SkGr.h" |
| #include "SkGrPixelRef.h" |
| #endif |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::internal_fromBM(const SkBitmap& src, |
| const SkSurfaceProps* props) { |
| #if SK_SUPPORT_GPU |
| // Need to test offset case! (see skbug.com/4967) |
| if (src.getTexture()) { |
| return SkSpecialImage::MakeFromGpu(src.bounds(), |
| src.getGenerationID(), |
| sk_ref_sp(src.getTexture()), |
| props); |
| } |
| #endif |
| |
| return SkSpecialImage::MakeFromRaster(src.bounds(), src, props); |
| } |
| |
| bool SkSpecialImage::internal_getBM(SkBitmap* result) { |
| const SkSpecialImage_Base* ib = as_SIB(this); |
| |
| // TODO: need to test offset case! (see skbug.com/4967) |
| return ib->getBitmapDeprecated(result); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| #include "SkImage.h" |
| #if SK_SUPPORT_GPU |
| #include "GrContext.h" |
| #include "SkGrPriv.h" |
| #endif |
| |
| class SkSpecialImage_Image : public SkSpecialImage_Base { |
| public: |
| SkSpecialImage_Image(const SkIRect& subset, |
| sk_sp<SkImage> image, |
| const SkSurfaceProps* props) |
| : INHERITED(subset, image->uniqueID(), props) |
| , fImage(image) { |
| } |
| |
| ~SkSpecialImage_Image() override { } |
| |
| bool isOpaque() const override { return fImage->isOpaque(); } |
| |
| size_t getSize() const override { |
| #if SK_SUPPORT_GPU |
| if (GrTexture* texture = as_IB(fImage.get())->peekTexture()) { |
| return texture->gpuMemorySize(); |
| } else |
| #endif |
| { |
| SkPixmap pm; |
| if (fImage->peekPixels(&pm)) { |
| return pm.height() * pm.rowBytes(); |
| } |
| } |
| return 0; |
| } |
| |
| void onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const override { |
| SkRect dst = SkRect::MakeXYWH(x, y, this->subset().width(), this->subset().height()); |
| |
| canvas->drawImageRect(fImage.get(), this->subset(), |
| dst, paint, SkCanvas::kStrict_SrcRectConstraint); |
| } |
| |
| bool onGetROPixels(SkBitmap* bm) const override { |
| return as_IB(fImage)->getROPixels(bm); |
| } |
| |
| GrTexture* onPeekTexture() const override { return as_IB(fImage)->peekTexture(); } |
| |
| #if SK_SUPPORT_GPU |
| sk_sp<GrTexture> onAsTextureRef(GrContext* context) const override { |
| return sk_sp<GrTexture>(as_IB(fImage)->asTextureRef(context, |
| GrTextureParams::ClampNoFilter(), |
| SkSourceGammaTreatment::kRespect)); |
| } |
| #endif |
| |
| bool getBitmapDeprecated(SkBitmap* result) const override { |
| #if SK_SUPPORT_GPU |
| if (GrTexture* texture = as_IB(fImage.get())->peekTexture()) { |
| const SkImageInfo info = GrMakeInfoFromTexture(texture, |
| fImage->width(), fImage->height(), |
| fImage->isOpaque()); |
| if (!result->setInfo(info)) { |
| return false; |
| } |
| |
| result->setPixelRef(new SkGrPixelRef(info, texture))->unref(); |
| return true; |
| } |
| #endif |
| |
| return as_IB(fImage.get())->asBitmapForImageFilters(result); |
| } |
| |
| sk_sp<SkSpecialSurface> onMakeSurface(const SkImageInfo& info) const override { |
| #if SK_SUPPORT_GPU |
| GrTexture* texture = as_IB(fImage.get())->peekTexture(); |
| if (texture) { |
| GrPixelConfig config = SkImageInfo2GrPixelConfig(info, *texture->getContext()->caps()); |
| |
| return SkSpecialSurface::MakeRenderTarget(texture->getContext(), |
| info.width(), |
| info.height(), |
| config); |
| } |
| #endif |
| return SkSpecialSurface::MakeRaster(info, nullptr); |
| } |
| |
| sk_sp<SkSpecialImage> onMakeSubset(const SkIRect& subset) const override { |
| sk_sp<SkImage> subsetImg(fImage->makeSubset(subset)); |
| if (!subsetImg) { |
| return nullptr; |
| } |
| |
| return SkSpecialImage::MakeFromImage(SkIRect::MakeWH(subset.width(), subset.height()), |
| subsetImg, |
| &this->props()); |
| } |
| |
| sk_sp<SkImage> onMakeTightSubset(const SkIRect& subset) const override { |
| return fImage->makeSubset(subset); |
| } |
| |
| sk_sp<SkSurface> onMakeTightSurface(const SkImageInfo& info) const override { |
| #if SK_SUPPORT_GPU |
| GrTexture* texture = as_IB(fImage.get())->peekTexture(); |
| if (texture) { |
| return SkSurface::MakeRenderTarget(texture->getContext(), SkBudgeted::kYes, info); |
| } |
| #endif |
| return SkSurface::MakeRaster(info, nullptr); |
| } |
| |
| private: |
| sk_sp<SkImage> fImage; |
| |
| typedef SkSpecialImage_Base INHERITED; |
| }; |
| |
| #ifdef SK_DEBUG |
| static bool rect_fits(const SkIRect& rect, int width, int height) { |
| if (0 == width && 0 == height) { |
| SkASSERT(0 == rect.fLeft && 0 == rect.fRight && 0 == rect.fTop && 0 == rect.fBottom); |
| return true; |
| } |
| |
| return rect.fLeft >= 0 && rect.fLeft < width && rect.fLeft < rect.fRight && |
| rect.fRight >= 0 && rect.fRight <= width && |
| rect.fTop >= 0 && rect.fTop < height && rect.fTop < rect.fBottom && |
| rect.fBottom >= 0 && rect.fBottom <= height; |
| } |
| #endif |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::MakeFromImage(const SkIRect& subset, |
| sk_sp<SkImage> image, |
| const SkSurfaceProps* props) { |
| SkASSERT(rect_fits(subset, image->width(), image->height())); |
| |
| return sk_make_sp<SkSpecialImage_Image>(subset, image, props); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| #include "SkBitmap.h" |
| #include "SkImageInfo.h" |
| #include "SkPixelRef.h" |
| |
| class SkSpecialImage_Raster : public SkSpecialImage_Base { |
| public: |
| SkSpecialImage_Raster(const SkIRect& subset, const SkBitmap& bm, const SkSurfaceProps* props) |
| : INHERITED(subset, bm.getGenerationID(), props) |
| , fBitmap(bm) { |
| if (bm.pixelRef() && bm.pixelRef()->isPreLocked()) { |
| // we only preemptively lock if there is no chance of triggering something expensive |
| // like a lazy decode or imagegenerator. PreLocked means it is flat pixels already. |
| fBitmap.lockPixels(); |
| } |
| } |
| |
| SkSpecialImage_Raster(const SkIRect& subset, |
| const SkPixmap& pixmap, |
| RasterReleaseProc releaseProc, |
| ReleaseContext context, |
| const SkSurfaceProps* props) |
| : INHERITED(subset, kNeedNewImageUniqueID_SpecialImage, props) { |
| fBitmap.installPixels(pixmap.info(), pixmap.writable_addr(), |
| pixmap.rowBytes(), pixmap.ctable(), |
| releaseProc, context); |
| } |
| |
| ~SkSpecialImage_Raster() override { } |
| |
| bool isOpaque() const override { return fBitmap.isOpaque(); } |
| |
| size_t getSize() const override { return fBitmap.getSize(); } |
| |
| void onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const override { |
| SkRect dst = SkRect::MakeXYWH(x, y, |
| this->subset().width(), this->subset().height()); |
| |
| canvas->drawBitmapRect(fBitmap, this->subset(), |
| dst, paint, SkCanvas::kStrict_SrcRectConstraint); |
| } |
| |
| bool onGetROPixels(SkBitmap* bm) const override { |
| *bm = fBitmap; |
| return true; |
| } |
| |
| #if SK_SUPPORT_GPU |
| sk_sp<GrTexture> onAsTextureRef(GrContext* context) const override { |
| if (context) { |
| return sk_ref_sp(GrRefCachedBitmapTexture(context, |
| fBitmap, |
| GrTextureParams::ClampNoFilter(), |
| SkSourceGammaTreatment::kRespect)); |
| } |
| |
| return nullptr; |
| } |
| #endif |
| |
| bool getBitmapDeprecated(SkBitmap* result) const override { |
| *result = fBitmap; |
| return true; |
| } |
| |
| sk_sp<SkSpecialSurface> onMakeSurface(const SkImageInfo& info) const override { |
| return SkSpecialSurface::MakeRaster(info, nullptr); |
| } |
| |
| sk_sp<SkSpecialImage> onMakeSubset(const SkIRect& subset) const override { |
| SkBitmap subsetBM; |
| |
| if (!fBitmap.extractSubset(&subsetBM, subset)) { |
| return nullptr; |
| } |
| |
| return SkSpecialImage::MakeFromRaster(SkIRect::MakeWH(subset.width(), subset.height()), |
| subsetBM, |
| &this->props()); |
| } |
| |
| sk_sp<SkImage> onMakeTightSubset(const SkIRect& subset) const override { |
| SkBitmap subsetBM; |
| |
| if (!fBitmap.extractSubset(&subsetBM, subset)) { |
| return nullptr; |
| } |
| |
| return SkImage::MakeFromBitmap(subsetBM); |
| } |
| |
| sk_sp<SkSurface> onMakeTightSurface(const SkImageInfo& info) const override { |
| return SkSurface::MakeRaster(info); |
| } |
| |
| private: |
| SkBitmap fBitmap; |
| |
| typedef SkSpecialImage_Base INHERITED; |
| }; |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::MakeFromRaster(const SkIRect& subset, |
| const SkBitmap& bm, |
| const SkSurfaceProps* props) { |
| SkASSERT(nullptr == bm.getTexture()); |
| SkASSERT(rect_fits(subset, bm.width(), bm.height())); |
| |
| return sk_make_sp<SkSpecialImage_Raster>(subset, bm, props); |
| } |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::MakeFromPixmap(const SkIRect& subset, |
| const SkPixmap& src, |
| RasterReleaseProc releaseProc, |
| ReleaseContext context, |
| const SkSurfaceProps* props) { |
| if (!src.addr()) { |
| return nullptr; |
| } |
| |
| return sk_make_sp<SkSpecialImage_Raster>(subset, src, releaseProc, context, props); |
| } |
| |
| |
| #if SK_SUPPORT_GPU |
| /////////////////////////////////////////////////////////////////////////////// |
| #include "GrTexture.h" |
| #include "SkImage_Gpu.h" |
| |
| class SkSpecialImage_Gpu : public SkSpecialImage_Base { |
| public: |
| SkSpecialImage_Gpu(const SkIRect& subset, |
| uint32_t uniqueID, sk_sp<GrTexture> tex, SkAlphaType at, |
| const SkSurfaceProps* props) |
| : INHERITED(subset, uniqueID, props) |
| , fTexture(std::move(tex)) |
| , fAlphaType(at) |
| , fAddedRasterVersionToCache(false) { |
| } |
| |
| ~SkSpecialImage_Gpu() override { |
| if (fAddedRasterVersionToCache.load()) { |
| SkNotifyBitmapGenIDIsStale(this->uniqueID()); |
| } |
| } |
| |
| bool isOpaque() const override { |
| return GrPixelConfigIsOpaque(fTexture->config()) || fAlphaType == kOpaque_SkAlphaType; |
| } |
| |
| size_t getSize() const override { return fTexture->gpuMemorySize(); } |
| |
| void onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const override { |
| SkRect dst = SkRect::MakeXYWH(x, y, |
| this->subset().width(), this->subset().height()); |
| |
| SkBitmap bm; |
| |
| GrWrapTextureInBitmap(fTexture.get(), |
| fTexture->width(), fTexture->height(), this->isOpaque(), &bm); |
| |
| canvas->drawBitmapRect(bm, this->subset(), |
| dst, paint, SkCanvas::kStrict_SrcRectConstraint); |
| } |
| |
| GrTexture* onPeekTexture() const override { return fTexture.get(); } |
| |
| sk_sp<GrTexture> onAsTextureRef(GrContext*) const override { return fTexture; } |
| |
| bool onGetROPixels(SkBitmap* dst) const override { |
| if (SkBitmapCache::Find(this->uniqueID(), dst)) { |
| SkASSERT(dst->getGenerationID() == this->uniqueID()); |
| SkASSERT(dst->isImmutable()); |
| SkASSERT(dst->getPixels()); |
| return true; |
| } |
| |
| SkImageInfo info = SkImageInfo::MakeN32(this->width(), this->height(), |
| this->isOpaque() ? kOpaque_SkAlphaType |
| : kPremul_SkAlphaType); |
| |
| if (!dst->tryAllocPixels(info)) { |
| return false; |
| } |
| |
| if (!fTexture->readPixels(0, 0, dst->width(), dst->height(), kSkia8888_GrPixelConfig, |
| dst->getPixels(), dst->rowBytes())) { |
| return false; |
| } |
| |
| dst->pixelRef()->setImmutableWithID(this->uniqueID()); |
| SkBitmapCache::Add(this->uniqueID(), *dst); |
| fAddedRasterVersionToCache.store(true); |
| return true; |
| } |
| |
| bool getBitmapDeprecated(SkBitmap* result) const override { |
| const SkImageInfo info = GrMakeInfoFromTexture(fTexture.get(), |
| this->width(), this->height(), |
| this->isOpaque()); |
| if (!result->setInfo(info)) { |
| return false; |
| } |
| |
| const SkImageInfo prInfo = info.makeWH(fTexture->width(), fTexture->height()); |
| |
| SkAutoTUnref<SkGrPixelRef> pixelRef(new SkGrPixelRef(prInfo, fTexture.get())); |
| result->setPixelRef(pixelRef, this->subset().fLeft, this->subset().fTop); |
| return true; |
| } |
| |
| sk_sp<SkSpecialSurface> onMakeSurface(const SkImageInfo& info) const override { |
| if (!fTexture->getContext()) { |
| return nullptr; |
| } |
| |
| GrPixelConfig config = SkImageInfo2GrPixelConfig(info, *fTexture->getContext()->caps()); |
| |
| return SkSpecialSurface::MakeRenderTarget(fTexture->getContext(), |
| info.width(), info.height(), |
| config); |
| } |
| |
| sk_sp<SkSpecialImage> onMakeSubset(const SkIRect& subset) const override { |
| return SkSpecialImage::MakeFromGpu(subset, |
| this->uniqueID(), |
| fTexture, |
| &this->props(), |
| fAlphaType); |
| } |
| |
| sk_sp<SkImage> onMakeTightSubset(const SkIRect& subset) const override { |
| if (0 == subset.fLeft && 0 == subset.fTop && |
| fTexture->width() == subset.width() && |
| fTexture->height() == subset.height()) { |
| // The existing GrTexture is already tight so reuse it in the SkImage |
| return sk_make_sp<SkImage_Gpu>(fTexture->width(), fTexture->height(), |
| kNeedNewImageUniqueID, |
| fAlphaType, fTexture.get(), SkBudgeted::kYes); |
| } |
| |
| GrContext* ctx = fTexture->getContext(); |
| GrSurfaceDesc desc = fTexture->desc(); |
| desc.fWidth = subset.width(); |
| desc.fHeight = subset.height(); |
| |
| sk_sp<GrTexture> subTx(ctx->textureProvider()->createTexture(desc, SkBudgeted::kYes)); |
| if (!subTx) { |
| return nullptr; |
| } |
| ctx->copySurface(subTx.get(), fTexture.get(), subset, SkIPoint::Make(0, 0)); |
| return sk_make_sp<SkImage_Gpu>(desc.fWidth, desc.fHeight, kNeedNewImageUniqueID, |
| fAlphaType, subTx.get(), SkBudgeted::kYes); |
| } |
| |
| sk_sp<SkSurface> onMakeTightSurface(const SkImageInfo& info) const override { |
| return SkSurface::MakeRenderTarget(fTexture->getContext(), SkBudgeted::kYes, info); |
| } |
| |
| private: |
| sk_sp<GrTexture> fTexture; |
| const SkAlphaType fAlphaType; |
| mutable SkAtomic<bool> fAddedRasterVersionToCache; |
| |
| typedef SkSpecialImage_Base INHERITED; |
| }; |
| |
| sk_sp<SkSpecialImage> SkSpecialImage::MakeFromGpu(const SkIRect& subset, |
| uint32_t uniqueID, |
| sk_sp<GrTexture> tex, |
| const SkSurfaceProps* props, |
| SkAlphaType at) { |
| SkASSERT(rect_fits(subset, tex->width(), tex->height())); |
| return sk_make_sp<SkSpecialImage_Gpu>(subset, uniqueID, std::move(tex), at, props); |
| } |
| |
| #endif |
