Lime3DS/src/video_core/video_core.cpp

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include <memory>
#include "common/archives.h"
#include "common/logging/log.h"
#include "common/settings.h"
#include "core/core.h"
#include "video_core/pica.h"
#include "video_core/pica_state.h"
#include "video_core/renderer_base.h"
#include "video_core/renderer_opengl/gl_vars.h"
#include "video_core/renderer_opengl/renderer_opengl.h"
#include "video_core/renderer_software/renderer_software.h"
#include "video_core/video_core.h"

////////////////////////////////////////////////////////////////////////////////////////////////////
// Video Core namespace

namespace VideoCore {

std::unique_ptr<RendererBase> g_renderer{}; ///< Renderer plugin

std::atomic<bool> g_shader_jit_enabled;
std::atomic<bool> g_hw_shader_enabled;
std::atomic<bool> g_separable_shader_enabled;
std::atomic<bool> g_hw_shader_accurate_mul;
std::atomic<bool> g_use_disk_shader_cache;
std::atomic<bool> g_renderer_bg_color_update_requested;
std::atomic<bool> g_renderer_sampler_update_requested;
std::atomic<bool> g_renderer_shader_update_requested;
std::atomic<bool> g_texture_filter_update_requested;

Memory::MemorySystem* g_memory;

/// Initialize the video core
void Init(Frontend::EmuWindow& emu_window, Frontend::EmuWindow* secondary_window,
          Core::System& system) {
    g_memory = &system.Memory();
    Pica::Init();

    const Settings::GraphicsAPI graphics_api = Settings::values.graphics_api.GetValue();
    OpenGL::GLES = Settings::values.use_gles.GetValue();

    switch (graphics_api) {
    case Settings::GraphicsAPI::Software:
        g_renderer = std::make_unique<VideoCore::RendererSoftware>(system, emu_window);
        break;
    case Settings::GraphicsAPI::OpenGL:
        g_renderer = std::make_unique<OpenGL::RendererOpenGL>(system, emu_window, secondary_window);
        break;
    default:
        LOG_CRITICAL(Render, "Unknown graphics API {}, using OpenGL", graphics_api);
        g_renderer = std::make_unique<OpenGL::RendererOpenGL>(system, emu_window, secondary_window);
    }
}

/// Shutdown the video core
void Shutdown() {
    Pica::Shutdown();
    g_renderer.reset();

    LOG_DEBUG(Render, "shutdown OK");
}

u16 GetResolutionScaleFactor() {
    const auto graphics_api = Settings::values.graphics_api.GetValue();
    if (graphics_api == Settings::GraphicsAPI::Software) {
        // Software renderer always render at native resolution
        return 1;
    }

    return Settings::values.resolution_factor.GetValue()
               ? Settings::values.resolution_factor.GetValue()
               : g_renderer->GetRenderWindow().GetFramebufferLayout().GetScalingRatio();
}

template <class Archive>
void serialize(Archive& ar, const unsigned int) {
    ar& Pica::g_state;
}

} // namespace VideoCore

SERIALIZE_IMPL(VideoCore)