| /* |
| * 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_HARDWARE_RESOURCE_PROVIDER_H_ |
| #define COBALT_RENDERER_RASTERIZER_SKIA_HARDWARE_RESOURCE_PROVIDER_H_ |
| |
| #include <string> |
| |
| #include "cobalt/render_tree/resource_provider.h" |
| #include "cobalt/renderer/backend/egl/graphics_context.h" |
| #include "cobalt/renderer/rasterizer/skia/hardware_image.h" |
| #include "cobalt/renderer/rasterizer/skia/text_shaper.h" |
| #include "third_party/skia/include/gpu/GrContext.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 hardware rasterizer. It must be constructed |
| // on the thread that will be visiting submitted render trees. |
| class HardwareResourceProvider : public render_tree::ResourceProvider { |
| public: |
| HardwareResourceProvider(backend::GraphicsContextEGL* cobalt_context, |
| GrContext* gr_context); |
| |
| 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; |
| |
| 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> 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; |
| |
| private: |
| backend::GraphicsContextEGL* cobalt_context_; |
| GrContext* gr_context_; |
| |
| SkAutoTUnref<SkFontMgr> font_manager_; |
| TextShaper text_shaper_; |
| |
| // We keep a handle to the message loop that this resource provider was |
| // created on. This message loop is used whenever we need to issue graphics |
| // commands, such as during the creation of an image. If the message loop |
| // is NULL, we will try to issue the graphics commands from the current |
| // thread. |
| MessageLoop* self_message_loop_; |
| }; |
| |
| } // namespace skia |
| } // namespace rasterizer |
| } // namespace renderer |
| } // namespace cobalt |
| |
| #endif // COBALT_RENDERER_RASTERIZER_SKIA_HARDWARE_RESOURCE_PROVIDER_H_ |