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gsdx wgl: drop GL2.0 context and avoid a context leak 

Namely detach/delete context before throwing
This commit is contained in:
Gregory Hainaut 2017-02-17 19:20:42 +01:00
parent cdb71101a1
commit 674d22321a
1 changed files with 40 additions and 39 deletions
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79
plugins/GSdx/GSWndWGL.cpp
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@ -47,12 +47,14 @@ LRESULT CALLBACK GSWndWGL::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARA
void GSWndWGL::CreateContext(int major, int minor)
{
if ( !m_NativeDisplay || !m_NativeWindow )
if (!m_NativeDisplay || !m_NativeWindow)
{
fprintf( stderr, "Wrong display/window\n" );
exit(1);
}
ASSERT(major >= 3);
// GL2 context are quite easy but we need GL3 which is another painful story...
m_context = wglCreateContext(m_NativeDisplay);
if (!m_context) {
@ -63,53 +65,52 @@ void GSWndWGL::CreateContext(int major, int minor)
// FIXME test it
// Note: albeit every tutorial said that we need an opengl context to use the GL function wglCreateContextAttribsARB
// On linux it works without the extra temporary context, not sure the limitation still applied
if (major >= 3) {
AttachContext();
AttachContext();
// Create a context
int context_attribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, major,
WGL_CONTEXT_MINOR_VERSION_ARB, minor,
// FIXME : Request a debug context to ease opengl development
// Note: don't support deprecated feature (pre openg 3.1)
//GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB | GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB
// Create a context
int context_attribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, major,
WGL_CONTEXT_MINOR_VERSION_ARB, minor,
// FIXME : Request a debug context to ease opengl development
// Note: don't support deprecated feature (pre openg 3.1)
//GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB | GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB
#ifdef ENABLE_OGL_DEBUG
| WGL_CONTEXT_DEBUG_BIT_ARB
#else
| GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR
#endif
,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
if (!wglCreateContextAttribsARB) {
fprintf(stderr, "Failed to init wglCreateContextAttribsARB function pointer\n");
throw GSDXRecoverableError();
}
HGLRC context30 = wglCreateContextAttribsARB(m_NativeDisplay, NULL, context_attribs);
if (!context30) {
fprintf(stderr, "Failed to create a 3.x context with standard flags\n");
// retry with more compatible option for (Mesa on Windows, OpenGL on WINE)
context_attribs[2*2+1] = 0;
context30 = wglCreateContextAttribsARB(m_NativeDisplay, NULL, context_attribs);
if (!context30) {
fprintf(stderr, "Failed to create a 3.x context with compatible flags\n");
throw GSDXRecoverableError();
}
}
DetachContext();
wglDeleteContext(m_context);
m_context = context30;
fprintf(stderr, "3.x GL context successfully created\n");
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
if (!wglCreateContextAttribsARB) {
fprintf(stderr, "Failed to init wglCreateContextAttribsARB function pointer\n");
throw GSDXRecoverableError();
}
HGLRC context30 = wglCreateContextAttribsARB(m_NativeDisplay, NULL, context_attribs);
if (!context30) {
fprintf(stderr, "Failed to create a 3.x context with standard flags\n");
// retry with more compatible option for (Mesa on Windows, OpenGL on WINE)
context_attribs[2*2+1] = 0;
context30 = wglCreateContextAttribsARB(m_NativeDisplay, NULL, context_attribs);
}
DetachContext();
wglDeleteContext(m_context);
if (!context30) {
fprintf(stderr, "Failed to create a 3.x context with compatible flags\n");
throw GSDXRecoverableError();
}
m_context = context30;
fprintf(stderr, "3.x GL context successfully created\n");
}
void GSWndWGL::AttachContext()