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/**
* This is called when we need to set up GL rendering to a new X window.
*/
static boolean
dri_create_buffer(__DRIscreenPrivate *sPriv,
__DRIdrawablePrivate *dPriv,
const __GLcontextModes *visual,
boolean isPixmap)
{
enum pipe_format colorFormat, depthFormat, stencilFormat;
struct dri_drawable *drawable;
if (isPixmap)
goto fail; /* not implemented */
drawable = CALLOC_STRUCT(dri_drawable);
if (drawable == NULL)
goto fail;
/* XXX: todo: use the pipe_screen queries to figure out which
* render targets are supportable.
*/
if (visual->redBits == 5)
colorFormat = PIPE_FORMAT_R5G6B5_UNORM;
else
colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM;
if (visual->depthBits == 16)
depthFormat = PIPE_FORMAT_Z16_UNORM;
else if (visual->depthBits == 24) {
if (visual->stencilBits == 8)
depthFormat = PIPE_FORMAT_S8Z24_UNORM;
else
depthFormat = PIPE_FORMAT_X8Z24_UNORM;
}
drawable->stfb = st_create_framebuffer(visual,
colorFormat,
depthFormat,
dPriv->w,
dPriv->h,
(void*) drawable);
if (drawable->stfb == NULL)
goto fail;
dPriv->driverPrivate = (void *) drawable;
return GL_TRUE;
fail:
FREE(drawable);
return GL_FALSE;
}
static void
dri_destroy_buffer(__DRIdrawablePrivate *dPriv)
{
struct dri_drawable *drawable = dri_drawable(dPriv);
assert(drawable->stfb);
st_unreference_framebuffer(drawable->stfb);
FREE(drawable);
}
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