256 lines
6.7 KiB
C++
256 lines
6.7 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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// OpenGL Backend Documentation
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/*
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1.1 Display settings
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Internal and fullscreen resolution: Since the only internal resolutions allowed
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are also fullscreen resolution allowed by the system there is only need for one
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resolution setting that applies to both the internal resolution and the
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fullscreen resolution. - Apparently no, someone else doesn't agree
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Todo: Make the internal resolution option apply instantly, currently only the
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native and 2x option applies instantly. To do this we need to be able to change
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the reinitialize FramebufferManager:Init() while a game is running.
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1.2 Screenshots
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The screenshots should be taken from the internal representation of the picture
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regardless of what the current window size is. Since AA and wireframe is
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applied together with the picture resizing this rule is not currently applied
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to AA or wireframe pictures, they are instead taken from whatever the window
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size is.
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Todo: Render AA and wireframe to a separate picture used for the screenshot in
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addition to the one for display.
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1.3 AA
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Make AA apply instantly during gameplay if possible
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*/
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#include <algorithm>
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#include <cstdarg>
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#include "Common/Atomic.h"
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#include "Common/CommonPaths.h"
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#include "Common/FileSearch.h"
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#include "Common/Thread.h"
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#include "Common/GL/GLInterfaceBase.h"
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#include "Common/GL/GLUtil.h"
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#include "Common/Logging/LogManager.h"
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#include "Core/ConfigManager.h"
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#include "Core/Core.h"
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#include "Core/Host.h"
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#include "VideoBackends/OGL/BoundingBox.h"
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#include "VideoBackends/OGL/FramebufferManager.h"
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#include "VideoBackends/OGL/PerfQuery.h"
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#include "VideoBackends/OGL/PostProcessing.h"
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#include "VideoBackends/OGL/ProgramShaderCache.h"
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#include "VideoBackends/OGL/Render.h"
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#include "VideoBackends/OGL/SamplerCache.h"
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#include "VideoBackends/OGL/TextureCache.h"
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#include "VideoBackends/OGL/TextureConverter.h"
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#include "VideoBackends/OGL/VertexManager.h"
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#include "VideoBackends/OGL/VideoBackend.h"
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#include "VideoCommon/BPStructs.h"
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#include "VideoCommon/CommandProcessor.h"
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#include "VideoCommon/Fifo.h"
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#include "VideoCommon/GeometryShaderManager.h"
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#include "VideoCommon/ImageWrite.h"
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#include "VideoCommon/IndexGenerator.h"
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#include "VideoCommon/LookUpTables.h"
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#include "VideoCommon/MainBase.h"
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#include "VideoCommon/OnScreenDisplay.h"
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#include "VideoCommon/OpcodeDecoding.h"
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#include "VideoCommon/PixelEngine.h"
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#include "VideoCommon/PixelShaderManager.h"
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#include "VideoCommon/VertexLoaderManager.h"
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#include "VideoCommon/VertexShaderManager.h"
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#include "VideoCommon/VideoConfig.h"
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#include "VideoCommon/VideoState.h"
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namespace OGL
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{
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// Draw messages on top of the screen
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unsigned int VideoBackend::PeekMessages()
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{
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return GLInterface->PeekMessages();
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}
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std::string VideoBackend::GetName() const
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{
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return "OGL";
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}
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std::string VideoBackend::GetDisplayName() const
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{
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if (GLInterface != nullptr && GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGLES3)
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return "OpenGLES";
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else
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return "OpenGL";
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}
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std::string VideoBackend::GetConfigName() const
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{
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return "gfx_opengl";
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}
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static std::vector<std::string> GetShaders(const std::string &sub_dir = "")
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{
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std::vector<std::string> paths = DoFileSearch({".glsl"}, {
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File::GetUserPath(D_SHADERS_IDX) + sub_dir,
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File::GetSysDirectory() + SHADERS_DIR DIR_SEP + sub_dir
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});
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std::vector<std::string> result;
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for (std::string path : paths)
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{
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std::string name;
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SplitPath(path, nullptr, &name, nullptr);
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result.push_back(name);
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}
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return result;
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}
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static void InitBackendInfo()
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{
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g_Config.backend_info.APIType = API_OPENGL;
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g_Config.backend_info.bSupportsExclusiveFullscreen = false;
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g_Config.backend_info.bSupportsOversizedViewports = true;
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g_Config.backend_info.bSupportsGeometryShaders = true;
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g_Config.backend_info.bSupports3DVision = false;
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g_Config.backend_info.bSupportsPostProcessing = true;
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g_Config.backend_info.bSupportsSSAA = true;
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g_Config.backend_info.Adapters.clear();
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// aamodes - 1 is to stay consistent with D3D (means no AA)
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const int aamodes[] = { 1, 2, 4, 8 };
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g_Config.backend_info.AAModes.assign(aamodes, aamodes + sizeof(aamodes)/sizeof(*aamodes));
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// pp shaders
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g_Config.backend_info.PPShaders = GetShaders("");
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g_Config.backend_info.AnaglyphShaders = GetShaders(ANAGLYPH_DIR DIR_SEP);
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}
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void VideoBackend::ShowConfig(void *_hParent)
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{
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if (!s_BackendInitialized)
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InitBackendInfo();
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Host_ShowVideoConfig(_hParent, GetDisplayName(), GetConfigName());
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}
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bool VideoBackend::Initialize(void *window_handle)
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{
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InitializeShared();
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InitBackendInfo();
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frameCount = 0;
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g_Config.Load(File::GetUserPath(D_CONFIG_IDX) + GetConfigName() + ".ini");
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g_Config.GameIniLoad();
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g_Config.UpdateProjectionHack();
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g_Config.VerifyValidity();
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UpdateActiveConfig();
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InitInterface();
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GLInterface->SetMode(GLInterfaceMode::MODE_DETECT);
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if (!GLInterface->Create(window_handle))
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return false;
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// Do our OSD callbacks
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OSD::DoCallbacks(OSD::OSD_INIT);
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s_BackendInitialized = true;
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return true;
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}
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// This is called after Initialize() from the Core
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// Run from the graphics thread
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void VideoBackend::Video_Prepare()
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{
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GLInterface->MakeCurrent();
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g_renderer = new Renderer;
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CommandProcessor::Init();
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PixelEngine::Init();
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BPInit();
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g_vertex_manager = new VertexManager;
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g_perf_query = GetPerfQuery();
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Fifo_Init(); // must be done before OpcodeDecoder_Init()
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OpcodeDecoder_Init();
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IndexGenerator::Init();
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VertexShaderManager::Init();
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PixelShaderManager::Init();
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GeometryShaderManager::Init();
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ProgramShaderCache::Init();
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g_texture_cache = new TextureCache();
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g_sampler_cache = new SamplerCache();
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Renderer::Init();
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VertexLoaderManager::Init();
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TextureConverter::Init();
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BoundingBox::Init();
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// Notify the core that the video backend is ready
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Host_Message(WM_USER_CREATE);
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}
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void VideoBackend::Shutdown()
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{
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s_BackendInitialized = false;
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// Do our OSD callbacks
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OSD::DoCallbacks(OSD::OSD_SHUTDOWN);
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GLInterface->Shutdown();
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delete GLInterface;
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GLInterface = nullptr;
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}
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void VideoBackend::Video_Cleanup()
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{
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if (g_renderer)
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{
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Fifo_Shutdown();
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// The following calls are NOT Thread Safe
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// And need to be called from the video thread
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Renderer::Shutdown();
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BoundingBox::Shutdown();
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TextureConverter::Shutdown();
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VertexLoaderManager::Shutdown();
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delete g_sampler_cache;
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g_sampler_cache = nullptr;
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delete g_texture_cache;
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g_texture_cache = nullptr;
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ProgramShaderCache::Shutdown();
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VertexShaderManager::Shutdown();
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PixelShaderManager::Shutdown();
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GeometryShaderManager::Shutdown();
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delete g_perf_query;
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g_perf_query = nullptr;
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delete g_vertex_manager;
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g_vertex_manager = nullptr;
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OpcodeDecoder_Shutdown();
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delete g_renderer;
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g_renderer = nullptr;
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GLInterface->ClearCurrent();
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}
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}
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}
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