dolphin/Source/Core/VideoBackends/Null/NullBackend.cpp

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// Copyright 2015 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
// Null Backend Documentation
// This backend tries not to do anything in the backend,
// but everything in VideoCommon.
#include "Core/Host.h"
#include "VideoBackends/Null/FramebufferManager.h"
#include "VideoBackends/Null/PerfQuery.h"
#include "VideoBackends/Null/Render.h"
#include "VideoBackends/Null/ShaderCache.h"
#include "VideoBackends/Null/TextureCache.h"
#include "VideoBackends/Null/VertexManager.h"
#include "VideoBackends/Null/VideoBackend.h"
#include "VideoCommon/BPStructs.h"
#include "VideoCommon/CommandProcessor.h"
#include "VideoCommon/Fifo.h"
#include "VideoCommon/IndexGenerator.h"
#include "VideoCommon/OnScreenDisplay.h"
#include "VideoCommon/OpcodeDecoding.h"
#include "VideoCommon/PixelEngine.h"
#include "VideoCommon/PixelShaderManager.h"
#include "VideoCommon/VertexLoaderManager.h"
#include "VideoCommon/VertexShaderManager.h"
#include "VideoCommon/VideoBackendBase.h"
#include "VideoCommon/VideoConfig.h"
namespace Null
{
static void InitBackendInfo()
{
g_Config.backend_info.APIType = API_NONE;
g_Config.backend_info.bSupportsExclusiveFullscreen = true;
g_Config.backend_info.bSupportsDualSourceBlend = true;
g_Config.backend_info.bSupportsEarlyZ = true;
g_Config.backend_info.bSupportsPrimitiveRestart = true;
g_Config.backend_info.bSupportsOversizedViewports = true;
g_Config.backend_info.bSupportsGeometryShaders = true;
g_Config.backend_info.bSupports3DVision = false;
g_Config.backend_info.bSupportsPostProcessing = false;
g_Config.backend_info.bSupportsPaletteConversion = true;
g_Config.backend_info.bSupportsClipControl = true;
// aamodes: We only support 1 sample, so no MSAA
g_Config.backend_info.AAModes = {1};
}
void VideoBackend::ShowConfig(void* parent)
{
InitBackendInfo();
Host_ShowVideoConfig(parent, GetDisplayName(), "gfx_null");
}
bool VideoBackend::Initialize(void* window_handle)
{
InitializeShared();
InitBackendInfo();
// Load Configs
g_Config.Load(File::GetUserPath(D_CONFIG_IDX) + "GFX.ini");
g_Config.GameIniLoad();
g_Config.UpdateProjectionHack();
g_Config.VerifyValidity();
UpdateActiveConfig();
// Do our OSD callbacks
OSD::DoCallbacks(OSD::CallbackType::Initialization);
// Initialize VideoCommon
CommandProcessor::Init();
PixelEngine::Init();
BPInit();
Fifo::Init();
OpcodeDecoder::Init();
IndexGenerator::Init();
VertexShaderManager::Init();
PixelShaderManager::Init();
VertexLoaderManager::Init();
Host_Message(WM_USER_CREATE);
return true;
}
// This is called after Initialize() from the Core
// Run from the graphics thread
void VideoBackend::Video_Prepare()
{
g_renderer = std::make_unique<Renderer>();
g_vertex_manager = std::make_unique<VertexManager>();
g_perf_query = std::make_unique<PerfQuery>();
g_framebuffer_manager = std::make_unique<FramebufferManager>();
g_texture_cache = std::make_unique<TextureCache>();
VertexShaderCache::s_instance = std::make_unique<VertexShaderCache>();
GeometryShaderCache::s_instance = std::make_unique<GeometryShaderCache>();
PixelShaderCache::s_instance = std::make_unique<PixelShaderCache>();
}
void VideoBackend::Shutdown()
{
// Shutdown VideoCommon
Fifo::Shutdown();
VertexLoaderManager::Shutdown();
VertexShaderManager::Shutdown();
PixelShaderManager::Shutdown();
OpcodeDecoder::Shutdown();
// Do our OSD callbacks
OSD::DoCallbacks(OSD::CallbackType::Shutdown);
}
void VideoBackend::Video_Cleanup()
{
PixelShaderCache::s_instance.reset();
VertexShaderCache::s_instance.reset();
GeometryShaderCache::s_instance.reset();
g_texture_cache.reset();
g_perf_query.reset();
g_vertex_manager.reset();
g_framebuffer_manager.reset();
g_renderer.reset();
}
}