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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/demo/simple_renderer_factory.h"
#include <memory>
#include <utility>
#include "base/command_line.h"
#include "base/logging.h"
#include "ui/gl/gl_display.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/init/gl_factory.h"
#include "ui/ozone/demo/gl_renderer.h"
#include "ui/ozone/demo/software_renderer.h"
#include "ui/ozone/demo/surfaceless_gl_renderer.h"
#include "ui/ozone/public/overlay_surface.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/platform_window_surface.h"
#include "ui/ozone/public/surface_factory_ozone.h"
#if BUILDFLAG(ENABLE_VULKAN)
#include "gpu/vulkan/init/vulkan_factory.h"
#include "gpu/vulkan/vulkan_surface.h"
#include "ui/ozone/demo/vulkan_overlay_renderer.h"
#include "ui/ozone/demo/vulkan_renderer.h"
#endif
namespace ui {
namespace {
const char kDisableSurfaceless[] = "disable-surfaceless";
const char kDisableGpu[] = "disable-gpu";
#if BUILDFLAG(ENABLE_VULKAN)
const char kEnableVulkan[] = "enable-vulkan";
#endif
scoped_refptr<gl::Presenter> CreatePresenter(gl::GLDisplay* display,
gfx::AcceleratedWidget widget) {
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(kDisableSurfaceless))
return gl::init::CreateSurfacelessViewGLSurface(display, widget);
return nullptr;
}
scoped_refptr<gl::GLSurface> CreateGLSurface(gl::GLDisplay* display,
gfx::AcceleratedWidget widget) {
return gl::init::CreateViewGLSurface(display, widget);
}
} // namespace
SimpleRendererFactory::SimpleRendererFactory() = default;
SimpleRendererFactory::~SimpleRendererFactory() {
if (display_) {
gl::init::ShutdownGL(display_, false);
display_ = nullptr;
}
}
bool SimpleRendererFactory::Initialize() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
#if BUILDFLAG(ENABLE_VULKAN)
if (command_line->HasSwitch(kEnableVulkan)) {
vulkan_implementation_ = gpu::CreateVulkanImplementation();
if (vulkan_implementation_ &&
vulkan_implementation_->InitializeVulkanInstance()) {
type_ = VULKAN;
return true;
} else {
vulkan_implementation_.reset();
}
}
#endif
if (!command_line->HasSwitch(kDisableGpu)) {
display_ = gl::init::InitializeGLOneOff(
/*gpu_preference=*/gl::GpuPreference::kDefault);
if (display_) {
type_ = GL;
} else {
type_ = SOFTWARE;
}
} else {
type_ = SOFTWARE;
}
return true;
}
std::unique_ptr<Renderer> SimpleRendererFactory::CreateRenderer(
gfx::AcceleratedWidget widget,
const gfx::Size& size) {
SurfaceFactoryOzone* surface_factory_ozone =
OzonePlatform::GetInstance()->GetSurfaceFactoryOzone();
auto window_surface =
surface_factory_ozone->CreatePlatformWindowSurface(widget);
switch (type_) {
case GL: {
if (auto presenter = CreatePresenter(display_, widget)) {
return std::make_unique<SurfacelessGlRenderer>(
widget, std::move(window_surface),
gl::init::CreateOffscreenGLSurface(display_, gfx::Size(0, 0)),
presenter, size);
}
scoped_refptr<gl::GLSurface> surface = CreateGLSurface(display_, widget);
if (!surface)
LOG(FATAL) << "Failed to create GL surface";
return std::make_unique<GlRenderer>(widget, std::move(window_surface),
surface, size);
}
#if BUILDFLAG(ENABLE_VULKAN)
case VULKAN: {
std::unique_ptr<OverlaySurface> overlay_surface =
surface_factory_ozone->CreateOverlaySurface(widget);
if (overlay_surface) {
return std::make_unique<VulkanOverlayRenderer>(
std::move(window_surface), std::move(overlay_surface),
surface_factory_ozone, vulkan_implementation_.get(), widget, size);
}
std::unique_ptr<gpu::VulkanSurface> vulkan_surface =
vulkan_implementation_->CreateViewSurface(widget);
return std::make_unique<VulkanRenderer>(
std::move(window_surface), std::move(vulkan_surface),
vulkan_implementation_.get(), widget, size);
}
#endif
case SOFTWARE:
return std::make_unique<SoftwareRenderer>(
widget, std::move(window_surface), size);
}
return nullptr;
}
} // namespace ui
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