| // Copyright 2014 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_RENDERER_RASTERIZER_SKIA_SOFTWARE_RESOURCE_PROVIDER_H_ |
| #define COBALT_RENDERER_RASTERIZER_SKIA_SOFTWARE_RESOURCE_PROVIDER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "cobalt/render_tree/resource_provider.h" |
| #include "cobalt/renderer/rasterizer/skia/text_shaper.h" |
| #include "third_party/skia/include/ports/SkFontMgr.h" |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace rasterizer { |
| namespace skia { |
| |
| // This class must be thread-safe and capable of creating resources that |
| // are to be consumed by this skia software rasterizer. |
| class SoftwareResourceProvider : public render_tree::ResourceProvider { |
| public: |
| SoftwareResourceProvider(); |
| |
| void Finish() OVERRIDE{}; |
| |
| bool PixelFormatSupported(render_tree::PixelFormat pixel_format) OVERRIDE; |
| bool AlphaFormatSupported(render_tree::AlphaFormat alpha_format) OVERRIDE; |
| |
| scoped_ptr<render_tree::ImageData> AllocateImageData( |
| const math::Size& size, render_tree::PixelFormat pixel_format, |
| render_tree::AlphaFormat alpha_format) OVERRIDE; |
| |
| scoped_refptr<render_tree::Image> CreateImage( |
| scoped_ptr<render_tree::ImageData> pixel_data) OVERRIDE; |
| |
| #if SB_HAS(GRAPHICS) |
| #if SB_API_VERSION >= 4 |
| scoped_refptr<render_tree::Image> CreateImageFromSbDecodeTarget( |
| SbDecodeTarget decode_target) OVERRIDE { |
| NOTREACHED(); |
| SbDecodeTargetRelease(decode_target); |
| return NULL; |
| } |
| |
| SbDecodeTargetGraphicsContextProvider* |
| GetSbDecodeTargetGraphicsContextProvider() OVERRIDE { |
| return NULL; |
| } |
| |
| bool SupportsSbDecodeTarget() OVERRIDE { return false; } |
| #elif SB_API_VERSION >= 3 |
| scoped_refptr<render_tree::Image> CreateImageFromSbDecodeTarget( |
| SbDecodeTarget decode_target) OVERRIDE { |
| NOTREACHED(); |
| SbDecodeTargetDestroy(decode_target); |
| return NULL; |
| } |
| |
| SbDecodeTargetProvider* GetSbDecodeTargetProvider() OVERRIDE { return NULL; } |
| |
| bool SupportsSbDecodeTarget() OVERRIDE { return false; } |
| #endif // SB_API_VERSION >= 4 |
| #endif // SB_HAS(GRAPHICS) |
| |
| scoped_ptr<render_tree::RawImageMemory> AllocateRawImageMemory( |
| size_t size_in_bytes, size_t alignment) OVERRIDE; |
| |
| scoped_refptr<render_tree::Image> CreateMultiPlaneImageFromRawMemory( |
| scoped_ptr<render_tree::RawImageMemory> raw_image_memory, |
| const render_tree::MultiPlaneImageDataDescriptor& descriptor) OVERRIDE; |
| |
| bool HasLocalFontFamily(const char* font_family_name) const OVERRIDE; |
| |
| scoped_refptr<render_tree::Typeface> GetLocalTypeface( |
| const char* font_family_name, render_tree::FontStyle font_style) OVERRIDE; |
| |
| scoped_refptr<render_tree::Typeface> GetLocalTypefaceByFaceNameIfAvailable( |
| const char* font_face_name) OVERRIDE; |
| |
| scoped_refptr<render_tree::Typeface> GetCharacterFallbackTypeface( |
| int32 character, render_tree::FontStyle font_style, |
| const std::string& language) OVERRIDE; |
| |
| // This resource provider uses ots (OpenTypeSanitizer) to sanitize the raw |
| // typeface data and skia to generate the typeface. It supports TrueType, |
| // OpenType, and WOFF data formats. |
| scoped_refptr<render_tree::Typeface> CreateTypefaceFromRawData( |
| scoped_ptr<render_tree::ResourceProvider::RawTypefaceDataVector> raw_data, |
| std::string* error_string) OVERRIDE; |
| |
| scoped_refptr<render_tree::GlyphBuffer> CreateGlyphBuffer( |
| const char16* text_buffer, size_t text_length, |
| const std::string& language, bool is_rtl, |
| render_tree::FontProvider* font_provider) OVERRIDE; |
| |
| scoped_refptr<render_tree::GlyphBuffer> CreateGlyphBuffer( |
| const std::string& utf8_string, |
| const scoped_refptr<render_tree::Font>& font) OVERRIDE; |
| |
| float GetTextWidth(const char16* text_buffer, size_t text_length, |
| const std::string& language, bool is_rtl, |
| render_tree::FontProvider* font_provider, |
| render_tree::FontVector* maybe_used_fonts) OVERRIDE; |
| |
| scoped_refptr<render_tree::Mesh> CreateMesh( |
| scoped_ptr<std::vector<render_tree::Mesh::Vertex> > vertices, |
| render_tree::Mesh::DrawMode draw_mode) OVERRIDE; |
| |
| scoped_refptr<render_tree::Image> DrawOffscreenImage( |
| const scoped_refptr<render_tree::Node>& root) OVERRIDE; |
| |
| void PurgeCaches() OVERRIDE; |
| |
| private: |
| TextShaper text_shaper_; |
| }; |
| |
| } // namespace skia |
| } // namespace rasterizer |
| } // namespace renderer |
| } // namespace cobalt |
| |
| #endif // COBALT_RENDERER_RASTERIZER_SKIA_SOFTWARE_RESOURCE_PROVIDER_H_ |