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https://github.com/libretro/Play-.git
synced 2025-01-07 09:00:25 +00:00
106 lines
2.4 KiB
C++
106 lines
2.4 KiB
C++
#include "GSH_OpenGLWin32.h"
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#include "GSH_OpenGL_SettingsWnd.h"
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PIXELFORMATDESCRIPTOR CGSH_OpenGLWin32::m_pfd =
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{
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sizeof(PIXELFORMATDESCRIPTOR),
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1,
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PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
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PFD_TYPE_RGBA,
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32,
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0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0,
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0,
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32,
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0,
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0,
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PFD_MAIN_PLANE,
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0,
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0, 0, 0
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};
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CGSH_OpenGLWin32::CGSH_OpenGLWin32(Framework::Win32::CWindow* outputWindow)
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: m_outputWnd(outputWindow)
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{
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}
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CGSHandler::FactoryFunction CGSH_OpenGLWin32::GetFactoryFunction(Framework::Win32::CWindow* outputWindow)
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{
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return std::bind(&CGSH_OpenGLWin32::GSHandlerFactory, outputWindow);
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}
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void CGSH_OpenGLWin32::InitializeImpl()
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{
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m_dc = GetDC(m_outputWnd->m_hWnd);
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unsigned int pf = ChoosePixelFormat(m_dc, &m_pfd);
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SetPixelFormat(m_dc, pf, &m_pfd);
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m_context = wglCreateContext(m_dc);
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wglMakeCurrent(m_dc, m_context);
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auto createContextAttribsARB = reinterpret_cast<PFNWGLCREATECONTEXTATTRIBSARBPROC>(wglGetProcAddress("wglCreateContextAttribsARB"));
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if(createContextAttribsARB != nullptr)
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{
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static const int attributes[] =
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{
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WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
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WGL_CONTEXT_MINOR_VERSION_ARB, 2,
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WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
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0
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};
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auto newContext = createContextAttribsARB(m_dc, nullptr, attributes);
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assert(newContext != nullptr);
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if(newContext != nullptr)
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{
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auto prevContext = m_context;
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m_context = newContext;
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wglMakeCurrent(m_dc, m_context);
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auto deleteResult = wglDeleteContext(prevContext);
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assert(deleteResult == TRUE);
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}
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}
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//GLEW doesn't work well with core profiles, thus, we need to enable "experimental" to make
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//sure it properly gets all function pointers.
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glewExperimental = GL_TRUE;
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auto result = glewInit();
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assert(result == GLEW_OK);
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//Clear any error that might rise from GLEW getting function pointers
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glGetError();
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CGSH_OpenGL::InitializeImpl();
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}
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void CGSH_OpenGLWin32::ReleaseImpl()
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{
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CGSH_OpenGL::ReleaseImpl();
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wglMakeCurrent(NULL, NULL);
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auto deleteResult = wglDeleteContext(m_context);
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assert(deleteResult == TRUE);
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}
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void CGSH_OpenGLWin32::PresentBackbuffer()
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{
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SwapBuffers(m_dc);
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}
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Framework::Win32::CWindow* CGSH_OpenGLWin32::CreateSettingsDialog(HWND parentWnd)
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{
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return new CGSH_OpenGL_SettingsWnd(parentWnd);
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}
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void CGSH_OpenGLWin32::OnSettingsDialogDestroyed()
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{
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NotifyPreferencesChanged();
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}
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CGSHandler* CGSH_OpenGLWin32::GSHandlerFactory(Framework::Win32::CWindow* outputWindow)
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{
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return new CGSH_OpenGLWin32(outputWindow);
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}
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