static void
_glitz_wgl_screen_destroy (glitz_wgl_screen_info_t *screen_info)
{
int i;
if (screen_info->root_context) {
wglMakeCurrent (NULL, NULL);
}
for (i = 0; i < screen_info->n_contexts; i++)
glitz_wgl_context_destroy (screen_info, screen_info->contexts[i]);
if (screen_info->contexts)
free (screen_info->contexts);
if (screen_info->formats)
free (screen_info->formats);
if (screen_info->format_ids)
free (screen_info->format_ids);
if (screen_info->root_context) {
wglDeleteContext (screen_info->root_context);
}
if (screen_info->root_dc) {
DeleteDC (screen_info->root_dc);
}
if (screen_info->root_window) {
DestroyWindow (screen_info->root_window);
}
free (screen_info);
}
static glitz_drawable_t *
_glitz_wgl_create_pbuffer_drawable (glitz_wgl_screen_info_t *screen_info,
glitz_drawable_format_t *format,
unsigned int width,
unsigned int height)
{
glitz_wgl_drawable_t *drawable;
glitz_wgl_context_t *context;
glitz_int_drawable_format_t *iformat = &screen_info->formats[format->id];
HPBUFFERARB pbuffer;
HDC dc;
if (!(iformat->types & GLITZ_DRAWABLE_TYPE_PBUFFER_MASK))
return NULL;
pbuffer = glitz_wgl_pbuffer_create (screen_info, screen_info->format_ids[format->id],
width, height,
&dc);
if (!pbuffer)
return NULL;
context = glitz_wgl_context_get (screen_info, dc, format);
if (!context) {
glitz_wgl_pbuffer_destroy (screen_info, pbuffer, dc);
return NULL;
}
drawable = _glitz_wgl_create_drawable (screen_info, context, format,
NULL, dc, pbuffer,
width, height);
if (!drawable) {
glitz_wgl_pbuffer_destroy (screen_info, pbuffer, dc);
glitz_wgl_context_destroy (screen_info, context);
return NULL;
}
return &drawable->base;
}
