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80 lines
2 KiB
C++
80 lines
2 KiB
C++
// Copyright 2013 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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#include "VideoBackendBase.h"
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// TODO: ugly
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#ifdef _WIN32
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#include "../VideoBackends/D3D/VideoBackend.h"
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#endif
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#if !defined(USE_GLES) || USE_GLES3
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#include "../VideoBackends/OGL/VideoBackend.h"
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#endif
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#include "../VideoBackends/Software/VideoBackend.h"
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std::vector<VideoBackend*> g_available_video_backends;
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VideoBackend* g_video_backend = NULL;
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static VideoBackend* s_default_backend = NULL;
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#ifdef _WIN32
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#include <windows.h>
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// http://msdn.microsoft.com/en-us/library/ms725491.aspx
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static bool IsGteVista()
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{
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OSVERSIONINFOEX osvi;
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DWORDLONG dwlConditionMask = 0;
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ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
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osvi.dwMajorVersion = 6;
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VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
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return VerifyVersionInfo(&osvi, VER_MAJORVERSION, dwlConditionMask) != FALSE;
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}
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#endif
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void VideoBackend::PopulateList()
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{
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VideoBackend* backends[4] = { NULL };
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// D3D11 > OGL > SW
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#ifdef _WIN32
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if (IsGteVista())
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g_available_video_backends.push_back(backends[0] = new DX11::VideoBackend);
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#endif
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#if !defined(USE_GLES) || USE_GLES3
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g_available_video_backends.push_back(backends[1] = new OGL::VideoBackend);
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#endif
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g_available_video_backends.push_back(backends[3] = new SW::VideoSoftware);
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for (auto& backend : backends)
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{
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if (backend)
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{
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s_default_backend = g_video_backend = backend;
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break;
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}
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}
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}
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void VideoBackend::ClearList()
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{
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while (!g_available_video_backends.empty())
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{
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delete g_available_video_backends.back();
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g_available_video_backends.pop_back();
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}
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}
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void VideoBackend::ActivateBackend(const std::string& name)
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{
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if (name.length() == 0) // If NULL, set it to the default backend (expected behavior)
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g_video_backend = s_default_backend;
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for (std::vector<VideoBackend*>::const_iterator it = g_available_video_backends.begin(); it != g_available_video_backends.end(); ++it)
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if (name == (*it)->GetName())
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g_video_backend = *it;
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}
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