| /* |
| * Copyright (c) 2013, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef ImageBufferSurface_h |
| #define ImageBufferSurface_h |
| |
| #include "platform/PlatformExport.h" |
| #include "platform/geometry/IntSize.h" |
| #include "platform/graphics/GraphicsTypes.h" |
| #include "third_party/khronos/GLES2/gl2.h" |
| #include "third_party/skia/include/core/SkPaint.h" |
| #include "third_party/skia/include/core/SkRefCnt.h" |
| #include "wtf/Allocator.h" |
| #include "wtf/Noncopyable.h" |
| |
| class SkBitmap; |
| class SkCanvas; |
| class SkColorSpace; |
| class SkImage; |
| struct SkImageInfo; |
| class SkPicture; |
| |
| namespace blink { |
| |
| class ImageBuffer; |
| class WebLayer; |
| class FloatRect; |
| class GraphicsContext; |
| |
| class PLATFORM_EXPORT ImageBufferSurface { |
| WTF_MAKE_NONCOPYABLE(ImageBufferSurface); |
| USING_FAST_MALLOC(ImageBufferSurface); |
| |
| public: |
| virtual ~ImageBufferSurface(); |
| |
| virtual SkCanvas* canvas() = 0; |
| virtual void disableDeferral(DisableDeferralReason) {} |
| virtual void willOverwriteCanvas() {} |
| virtual void didDraw(const FloatRect& rect) {} |
| virtual bool isValid() const = 0; |
| virtual bool restore() { return false; } |
| virtual WebLayer* layer() const { return 0; } |
| virtual bool isAccelerated() const { return false; } |
| virtual bool isRecording() const { return false; } |
| virtual bool isExpensiveToPaint() { return false; } |
| virtual void setFilterQuality(SkFilterQuality) {} |
| virtual void setIsHidden(bool) {} |
| virtual void setImageBuffer(ImageBuffer*) {} |
| virtual sk_sp<SkPicture> getPicture(); |
| virtual void finalizeFrame(const FloatRect& dirtyRect) {} |
| virtual void draw(GraphicsContext&, |
| const FloatRect& destRect, |
| const FloatRect& srcRect, |
| SkXfermode::Mode); |
| virtual void setHasExpensiveOp() {} |
| virtual GLuint getBackingTextureHandleForOverwrite() { return 0; } |
| |
| // Executes all deferred rendering immediately. |
| virtual void flush(FlushReason); |
| |
| // Like flush, but flushes all the way down to the GPU context if the surface |
| // uses the GPU. |
| virtual void flushGpu(FlushReason reason) { flush(reason); } |
| |
| virtual void prepareSurfaceForPaintingIfNeeded() {} |
| virtual bool writePixels(const SkImageInfo& origInfo, |
| const void* pixels, |
| size_t rowBytes, |
| int x, |
| int y); |
| |
| // May return nullptr if the surface is GPU-backed and the GPU context was |
| // lost. |
| virtual sk_sp<SkImage> newImageSnapshot(AccelerationHint, SnapshotReason) = 0; |
| |
| OpacityMode getOpacityMode() const { return m_opacityMode; } |
| const IntSize& size() const { return m_size; } |
| const sk_sp<SkColorSpace> colorSpace() const { return m_colorSpace; } |
| void notifyIsValidChanged(bool isValid) const; |
| |
| protected: |
| ImageBufferSurface(const IntSize&, OpacityMode, sk_sp<SkColorSpace>); |
| void clear(); |
| |
| private: |
| OpacityMode m_opacityMode; |
| IntSize m_size; |
| sk_sp<SkColorSpace> m_colorSpace; |
| }; |
| |
| } // namespace blink |
| |
| #endif |