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// Copyright 2018 The Cobalt Authors. 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.
#include <memory>
#include "cobalt/renderer/get_default_rasterizer_for_platform.h"
#include "cobalt/configuration/configuration.h"
#include "cobalt/renderer/backend/graphics_context.h"
#include "cobalt/renderer/rasterizer/blitter/hardware_rasterizer.h"
#include "cobalt/renderer/rasterizer/blitter/software_rasterizer.h"
#include "cobalt/renderer/rasterizer/egl/hardware_rasterizer.h"
#include "cobalt/renderer/rasterizer/egl/software_rasterizer.h"
#include "cobalt/renderer/rasterizer/skia/hardware_rasterizer.h"
#include "cobalt/renderer/rasterizer/stub/rasterizer.h"
#include "cobalt/renderer/renderer_module.h"
#include "starboard/gles.h"
namespace cobalt {
namespace renderer {
namespace {
std::unique_ptr<rasterizer::Rasterizer> CreateStubRasterizer(
backend::GraphicsContext* graphics_context,
const RendererModule::Options& options) {
return std::unique_ptr<rasterizer::Rasterizer>(
new rasterizer::stub::Rasterizer());
}
#if SB_API_VERSION >= 12 || SB_HAS(GLES2)
std::unique_ptr<rasterizer::Rasterizer> CreateGLESSoftwareRasterizer(
backend::GraphicsContext* graphics_context,
const RendererModule::Options& options) {
return std::unique_ptr<rasterizer::Rasterizer>(
new rasterizer::egl::SoftwareRasterizer(
graphics_context, options.purge_skia_font_caches_on_destruction));
}
std::unique_ptr<rasterizer::Rasterizer> CreateGLESHardwareRasterizer(
backend::GraphicsContext* graphics_context,
const RendererModule::Options& options) {
return std::unique_ptr<rasterizer::Rasterizer>(
new rasterizer::egl::HardwareRasterizer(
graphics_context, options.skia_glyph_texture_atlas_dimensions.width(),
options.skia_glyph_texture_atlas_dimensions.height(),
options.skia_cache_size_in_bytes,
options.scratch_surface_cache_size_in_bytes,
options.offscreen_target_cache_size_in_bytes,
options.purge_skia_font_caches_on_destruction,
options.force_deterministic_rendering));
}
std::unique_ptr<rasterizer::Rasterizer> CreateSkiaHardwareRasterizer(
backend::GraphicsContext* graphics_context,
const RendererModule::Options& options) {
return std::unique_ptr<rasterizer::Rasterizer>(
new rasterizer::skia::HardwareRasterizer(
graphics_context, options.skia_glyph_texture_atlas_dimensions.width(),
options.skia_glyph_texture_atlas_dimensions.height(),
options.skia_cache_size_in_bytes,
options.scratch_surface_cache_size_in_bytes,
options.purge_skia_font_caches_on_destruction,
options.force_deterministic_rendering));
}
#endif // #if SB_API_VERSION >= 12 ||
// SB_HAS(GLES2)
#if SB_API_VERSION < 12 && SB_HAS(BLITTER)
std::unique_ptr<rasterizer::Rasterizer> CreateBlitterSoftwareRasterizer(
backend::GraphicsContext* graphics_context,
const RendererModule::Options& options) {
return std::unique_ptr<rasterizer::Rasterizer>(
new rasterizer::blitter::SoftwareRasterizer(
graphics_context, options.purge_skia_font_caches_on_destruction));
}
std::unique_ptr<rasterizer::Rasterizer> CreateBlitterHardwareRasterizer(
backend::GraphicsContext* graphics_context,
const RendererModule::Options& options) {
return std::unique_ptr<rasterizer::Rasterizer>(
new rasterizer::blitter::HardwareRasterizer(
graphics_context, options.skia_glyph_texture_atlas_dimensions.width(),
options.skia_glyph_texture_atlas_dimensions.height(),
options.scratch_surface_cache_size_in_bytes,
options.software_surface_cache_size_in_bytes,
options.purge_skia_font_caches_on_destruction));
}
#endif // SB_API_VERSION < 12 && SB_HAS(BLITTER)
} // namespace
RasterizerInfo GetDefaultRasterizerForPlatform() {
std::string rasterizer_type =
configuration::Configuration::GetInstance()->CobaltRasterizerType();
if (rasterizer_type == "stub") {
return {"stub", base::Bind(&CreateStubRasterizer)};
}
#if SB_API_VERSION >= 12
if (SbGetGlesInterface()) {
if (rasterizer_type == "direct-gles") {
return {"gles", base::Bind(&CreateGLESHardwareRasterizer)};
} else {
return {"skia", base::Bind(&CreateSkiaHardwareRasterizer)};
}
} else {
SB_LOG(ERROR)
<< "GLES2 must be available.";
SB_DCHECK(false);
return {};
}
#else // SB_API_VERSION >= 12
#if SB_HAS(GLES2)
if (rasterizer_type == "direct-gles") {
return {"gles", base::Bind(&CreateGLESHardwareRasterizer)};
} else {
return {"skia", base::Bind(&CreateSkiaHardwareRasterizer)};
}
#elif SB_API_VERSION < 12 && SB_HAS(BLITTER)
return {"blitter", base::Bind(&CreateBlitterHardwareRasterizer)};
#else
#error "Either GLES2 or the Starboard Blitter API must be available."
return {"", NULL};
#endif
#endif // SB_API_VERSION >= 12
}
} // namespace renderer
} // namespace cobalt