static boolean
drm_surface_present(struct native_surface *nsurf,
enum native_attachment natt,
boolean preserve,
uint swap_interval)
{
boolean ret;
if (swap_interval)
return FALSE;
switch (natt) {
case NATIVE_ATTACHMENT_FRONT_LEFT:
ret = drm_surface_flush_frontbuffer(nsurf);
break;
case NATIVE_ATTACHMENT_BACK_LEFT:
if (preserve)
ret = drm_surface_copy_swap(nsurf);
else
ret = drm_surface_swap_buffers(nsurf);
break;
default:
ret = FALSE;
break;
}
return ret;
}
static boolean
drm_surface_present(struct native_surface *nsurf,
const struct native_present_control *ctrl)
{
boolean ret;
if (ctrl->swap_interval)
return FALSE;
switch (ctrl->natt) {
case NATIVE_ATTACHMENT_FRONT_LEFT:
ret = drm_surface_flush_frontbuffer(nsurf);
break;
case NATIVE_ATTACHMENT_BACK_LEFT:
if (ctrl->preserve)
ret = drm_surface_copy_swap(nsurf);
else
ret = drm_surface_swap_buffers(nsurf);
break;
default:
ret = FALSE;
break;
}
return ret;
}
static boolean
drm_surface_swap_buffers(struct native_surface *nsurf)
{
struct drm_surface *drmsurf = drm_surface(nsurf);
struct drm_crtc *drmcrtc = &drmsurf->current_crtc;
struct drm_display *drmdpy = drmsurf->drmdpy;
struct drm_framebuffer tmp_fb;
int err;
if (!drmsurf->have_pageflip)
return drm_surface_copy_swap(nsurf);
if (!drmsurf->back_fb.buffer_id) {
if (!drm_surface_init_framebuffers(&drmsurf->base, TRUE))
return FALSE;
}
if (drmsurf->is_shown && drmcrtc->crtc) {
err = drmModePageFlip(drmdpy->fd, drmcrtc->crtc->crtc_id,
drmsurf->back_fb.buffer_id, 0, NULL);
if (err) {
drmsurf->have_pageflip = FALSE;
return drm_surface_copy_swap(nsurf);
}
}
/* swap the buffers */
tmp_fb = drmsurf->front_fb;
drmsurf->front_fb = drmsurf->back_fb;
drmsurf->back_fb = tmp_fb;
resource_surface_swap_buffers(drmsurf->rsurf,
NATIVE_ATTACHMENT_FRONT_LEFT, NATIVE_ATTACHMENT_BACK_LEFT, FALSE);
/* the front/back textures are swapped */
drmsurf->sequence_number++;
drmdpy->event_handler->invalid_surface(&drmdpy->base,
&drmsurf->base, drmsurf->sequence_number);
return TRUE;
}
