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opengl32: Don't use deprecated functions for extension checking purposes on core profile contexts.

This commit is contained in:
Matteo Bruni 2015-01-29 18:45:00 +01:00 committed by Alexandre Julliard
parent ae372f53f7
commit 1e48bbb7ac
1 changed files with 40 additions and 4 deletions
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44
dlls/opengl32/wgl.c
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@ -162,6 +162,12 @@ static void free_handle_ptr( struct wgl_handle *ptr )
LeaveCriticalSection( &wgl_section );
}
static inline enum wgl_handle_type get_current_context_type(void)
{
if (!NtCurrentTeb()->glCurrentRC) return HANDLE_CONTEXT;
return (LOWORD(NtCurrentTeb()->glCurrentRC) & HANDLE_TYPE_MASK) >> 12;
}
/***********************************************************************
* wglCopyContext (OPENGL32.@)
*/
@ -684,6 +690,30 @@ int WINAPI wglGetLayerPaletteEntries(HDC hdc,
/* check if the extension is present in the list */
static BOOL has_extension( const char *list, const char *ext, size_t len )
{
if (!list)
{
const struct opengl_funcs *funcs = NtCurrentTeb()->glTable;
const char *gl_ext;
unsigned int i;
GLint extensions_count;
if (!funcs->ext.p_glGetStringi)
{
void **func_ptr = (void **)&funcs->ext.p_glGetStringi;
*func_ptr = funcs->wgl.p_wglGetProcAddress("glGetStringi");
}
glGetIntegerv(GL_NUM_EXTENSIONS, &extensions_count);
for (i = 0; i < extensions_count; ++i)
{
gl_ext = (const char *)funcs->ext.p_glGetStringi(GL_EXTENSIONS, i);
if (!strncmp(gl_ext, ext, len) && !gl_ext[len])
return TRUE;
}
return FALSE;
}
while (list)
{
while (*list == ' ') list++;
@ -701,15 +731,21 @@ static int compar(const void *elt_a, const void *elt_b) {
/* Check if a GL extension is supported */
static BOOL is_extension_supported(const char* extension)
{
enum wgl_handle_type type = get_current_context_type();
const struct opengl_funcs *funcs = NtCurrentTeb()->glTable;
const char *gl_ext_string = (const char*)glGetString(GL_EXTENSIONS);
const char *gl_ext_string = NULL;
size_t len;
TRACE("Checking for extension '%s'\n", extension);
if(!gl_ext_string) {
ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
return FALSE;
if (type == HANDLE_CONTEXT)
{
gl_ext_string = (const char*)glGetString(GL_EXTENSIONS);
if (!gl_ext_string)
{
ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
return FALSE;
}
}
/* We use the GetProcAddress function from the display driver to retrieve function pointers