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wined3d: Don't reuse random GL contexts during initialization. 

Obviously there's no guarantee about the state of such a context. The specific
problem is that it might have GL_UNPACK_CLIENT_STORAGE_APPLE enabled, causing
some glTexImage2D() calls to fail, but it's a bad idea in general.
This commit is contained in:
Henri Verbeet 2009-07-02 10:01:37 +02:00 committed by Alexandre Julliard
parent 50e9ad66e2
commit b5da7f49d3
1 changed files with 47 additions and 48 deletions
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95
dlls/wined3d/directx.c
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@ -198,7 +198,6 @@ glMultiTexCoordFunc multi_texcoord_funcs[WINED3D_FFP_EMIT_COUNT];
*/
static int wined3d_fake_gl_context_ref = 0;
static BOOL wined3d_fake_gl_context_foreign;
static BOOL wined3d_fake_gl_context_available = FALSE;
static HDC wined3d_fake_gl_context_hdc = NULL;
static HWND wined3d_fake_gl_context_hwnd = NULL;
@ -228,7 +227,8 @@ static void WineD3D_ReleaseFakeGLContext(void) {
TRACE_(d3d_caps)("decrementing ref from %i\n", wined3d_fake_gl_context_ref);
if (0 == (--wined3d_fake_gl_context_ref) ) {
if(!wined3d_fake_gl_context_foreign && glCtx) {
if (glCtx)
{
TRACE_(d3d_caps)("destroying fake GL context\n");
if (!pwglMakeCurrent(NULL, NULL))
{
@ -249,64 +249,63 @@ static void WineD3D_ReleaseFakeGLContext(void) {
}
static BOOL WineD3D_CreateFakeGLContext(void) {
PIXELFORMATDESCRIPTOR pfd;
HGLRC glCtx = NULL;
int iPixelFormat;
EnterCriticalSection(&wined3d_fake_gl_context_cs);
TRACE("getting context...\n");
if(wined3d_fake_gl_context_ref > 0) goto ret;
wined3d_fake_gl_context_foreign = TRUE;
/* We need a fake window as a hdc retrieved using GetDC(0) can't be used for much GL purposes. */
wined3d_fake_gl_context_hwnd = CreateWindowA(WINED3D_OPENGL_WINDOW_CLASS_NAME, "WineD3D fake window",
WS_OVERLAPPEDWINDOW, 10, 10, 10, 10, NULL, NULL, NULL, NULL);
if (!wined3d_fake_gl_context_hwnd)
{
ERR("HWND creation failed!\n");
goto fail;
}
glCtx = pwglGetCurrentContext();
if (!glCtx) {
PIXELFORMATDESCRIPTOR pfd;
int iPixelFormat;
wined3d_fake_gl_context_hdc = GetDC(wined3d_fake_gl_context_hwnd);
if (!wined3d_fake_gl_context_hdc)
{
ERR("GetDC failed!\n");
goto fail;
}
wined3d_fake_gl_context_foreign = FALSE;
/* PixelFormat selection */
ZeroMemory(&pfd, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW; /* PFD_GENERIC_ACCELERATED */
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.iLayerType = PFD_MAIN_PLANE;
/* We need a fake window as a hdc retrieved using GetDC(0) can't be used for much GL purposes */
wined3d_fake_gl_context_hwnd = CreateWindowA(WINED3D_OPENGL_WINDOW_CLASS_NAME, "WineD3D fake window", WS_OVERLAPPEDWINDOW, 10, 10, 10, 10, NULL, NULL, NULL, NULL);
if(!wined3d_fake_gl_context_hwnd) {
ERR("HWND creation failed!\n");
goto fail;
}
wined3d_fake_gl_context_hdc = GetDC(wined3d_fake_gl_context_hwnd);
if(!wined3d_fake_gl_context_hdc) {
ERR("GetDC failed!\n");
goto fail;
}
iPixelFormat = ChoosePixelFormat(wined3d_fake_gl_context_hdc, &pfd);
if (!iPixelFormat)
{
/* If this happens something is very wrong as ChoosePixelFormat barely fails. */
ERR("Can't find a suitable iPixelFormat.\n");
goto fail;
}
DescribePixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, sizeof(pfd), &pfd);
SetPixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, &pfd);
/* PixelFormat selection */
ZeroMemory(&pfd, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.iLayerType = PFD_MAIN_PLANE;
/* Create a GL context. */
glCtx = pwglCreateContext(wined3d_fake_gl_context_hdc);
if (!glCtx)
{
WARN_(d3d_caps)("Error creating default context for capabilities initialization.\n");
goto fail;
}
iPixelFormat = ChoosePixelFormat(wined3d_fake_gl_context_hdc, &pfd);
if(!iPixelFormat) {
/* If this happens something is very wrong as ChoosePixelFormat barely fails */
ERR("Can't find a suitable iPixelFormat\n");
goto fail;
}
DescribePixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, sizeof(pfd), &pfd);
SetPixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, &pfd);
/* Create a GL context */
glCtx = pwglCreateContext(wined3d_fake_gl_context_hdc);
if (!glCtx) {
WARN_(d3d_caps)("Error creating default context for capabilities initialization\n");
goto fail;
}
/* Make it the current GL context */
if (!pwglMakeCurrent(wined3d_fake_gl_context_hdc, glCtx)) {
ERR_(d3d_caps)("Failed to make fake GL context current.\n");
goto fail;
}
/* Make it the current GL context. */
if (!pwglMakeCurrent(wined3d_fake_gl_context_hdc, glCtx))
{
ERR_(d3d_caps)("Failed to make fake GL context current.\n");
goto fail;
}
context_set_last_device(NULL);