1 /* 2 * Copyright (C) 2008 Apple Computer, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GENERATED_IMAGE_H_ 27 #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GENERATED_IMAGE_H_ 28 29 #include "third_party/blink/renderer/platform/geometry/layout_size.h" 30 #include "third_party/blink/renderer/platform/graphics/image.h" 31 #include "third_party/skia/include/core/SkRefCnt.h" 32 33 namespace blink { 34 35 class PLATFORM_EXPORT GeneratedImage : public Image { 36 public: CurrentFrameHasSingleSecurityOrigin()37 bool CurrentFrameHasSingleSecurityOrigin() const override { return true; } 38 HasIntrinsicSize()39 bool HasIntrinsicSize() const override { return false; } 40 Size()41 IntSize Size() const override { return RoundedIntSize(size_); } SizeAsFloat(RespectImageOrientationEnum)42 FloatSize SizeAsFloat(RespectImageOrientationEnum) const override { 43 return size_; 44 } 45 46 // Assume that generated content has no decoded data we need to worry about DestroyDecodedData()47 void DestroyDecodedData() override {} 48 49 PaintImage PaintImageForCurrentFrame() override; 50 51 protected: 52 void DrawPattern(GraphicsContext&, 53 const FloatRect&, 54 const FloatSize&, 55 const FloatPoint&, 56 SkBlendMode, 57 const FloatRect&, 58 const FloatSize& repeat_spacing, 59 RespectImageOrientationEnum) final; 60 virtual sk_sp<cc::PaintShader> CreateShader(const FloatRect& tile_rect, 61 const SkMatrix* pattern_matrix, 62 const FloatRect& src_rect, 63 RespectImageOrientationEnum); 64 65 // FIXME: Implement this to be less conservative. CurrentFrameKnownToBeOpaque()66 bool CurrentFrameKnownToBeOpaque() override { return false; } 67 GeneratedImage(const FloatSize & size)68 GeneratedImage(const FloatSize& size) : size_(size) {} 69 70 virtual void DrawTile(GraphicsContext&, 71 const FloatRect&, 72 RespectImageOrientationEnum) = 0; 73 74 FloatSize size_; 75 }; 76 77 } // namespace blink 78 79 #endif 80