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/*
* Copyright 2016 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_BLITTER_RESOURCE_PROVIDER_H_
#define COBALT_RENDERER_RASTERIZER_BLITTER_RESOURCE_PROVIDER_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "cobalt/render_tree/font.h"
#include "cobalt/render_tree/font_provider.h"
#include "cobalt/render_tree/image.h"
#include "cobalt/render_tree/resource_provider.h"
#include "starboard/blitter.h"
#if SB_HAS(BLITTER)
namespace cobalt {
namespace renderer {
namespace rasterizer {
namespace blitter {
class ResourceProvider : public render_tree::ResourceProvider {
public:
explicit ResourceProvider(
SbBlitterDevice device,
render_tree::ResourceProvider* skia_resource_provider);
~ResourceProvider() OVERRIDE {}
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> source_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> GetLocalTypefaceByFaceNameIfAvailable(
const std::string& font_face_name) OVERRIDE;
scoped_refptr<render_tree::Typeface> GetCharacterFallbackTypeface(
int32 utf32_character, render_tree::FontStyle font_style,
const std::string& language) OVERRIDE;
scoped_refptr<render_tree::Typeface> CreateTypefaceFromRawData(
scoped_ptr<RawTypefaceDataVector> raw_data,
std::string* error_string) 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::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;
private:
SbBlitterDevice device_;
// Any requests for font-related resources will be forwarded on to this
// ResourceProvider, as the Blitter API does not natively support font
// rendering.
render_tree::ResourceProvider* skia_resource_provider_;
};
} // namespace blitter
} // namespace rasterizer
} // namespace renderer
} // namespace cobalt
#endif // #if SB_HAS(BLITTER)
#endif // COBALT_RENDERER_RASTERIZER_BLITTER_RESOURCE_PROVIDER_H_