static void
swap(struct gbm_winsys *winsys)
{
struct gbm_dev *dev = winsys->dev;
struct gbm_context *context = winsys->context;
struct gbm_bo *bo;
uint32_t handle, stride;
uint32_t width, height;
uint32_t fb_id;
eglSwapBuffers(context->edpy, context->egl_surface);
bo = gbm_surface_lock_front_buffer(context->gbm_surface);
width = gbm_bo_get_width(bo);
height = gbm_bo_get_height(bo);
stride = gbm_bo_get_stride(bo);
handle = gbm_bo_get_handle(bo).u32;
if (drmModeAddFB(dev->fd,
width, height,
24, /* depth */
32, /* bpp */
stride,
handle,
&fb_id)) {
fprintf(stderr,
"Failed to create new back buffer handle: %m\n");
} else {
if (dev->saved_crtc == NULL &&
set_initial_crtc(dev, fb_id))
return;
if (drmModePageFlip(dev->fd,
dev->crtc,
fb_id,
DRM_MODE_PAGE_FLIP_EVENT,
dev)) {
fprintf(stderr, "Failed to page flip: %m\n");
return;
}
dev->pending_swap = 1;
wait_swap(dev);
free_current_bo(context);
context->current_bo = bo;
context->current_fb_id = fb_id;
}
}
static void
stereo_cleanup_context(struct gbm_context *context)
{
restore_saved_crtc(context->dev);
free_current_bo(context);
eglMakeCurrent(context->edpy,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT);
eglDestroyContext(context->edpy, context->egl_context);
eglDestroySurface(context->edpy, context->egl_surface);
gbm_surface_destroy(context->gbm_surface);
eglTerminate(context->edpy);
gbm_device_destroy(context->gbm);
free(context);
}
static void
page_flip_handler (int fd,
unsigned int frame,
unsigned int sec,
unsigned int usec,
void *data)
{
CoglFlipKMS *flip = data;
CoglOnscreen *onscreen = flip->onscreen;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenKMS *kms_onscreen = egl_onscreen->platform;
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
/* We're only ready to dispatch a swap notification once all outputs
* have flipped... */
flip->pending--;
if (flip->pending == 0)
{
/* We only want to notify that the swap is complete when the application
* calls cogl_context_dispatch so instead of immediately notifying we'll
* set a flag to remember to notify later */
kms_display->pending_swap_notify = TRUE;
kms_onscreen->pending_swap_notify = TRUE;
free_current_bo (onscreen);
kms_onscreen->current_fb_id = kms_onscreen->next_fb_id;
kms_onscreen->next_fb_id = 0;
kms_onscreen->current_bo = kms_onscreen->next_bo;
kms_onscreen->next_bo = NULL;
cogl_object_unref (flip->onscreen);
g_slice_free (CoglFlipKMS, flip);
}
}
static void
_cogl_winsys_onscreen_deinit (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenKMS *kms_onscreen;
/* If we never successfully allocated then there's nothing to do */
if (egl_onscreen == NULL)
return;
kms_onscreen = egl_onscreen->platform;
/* flip state takes a reference on the onscreen so there should
* never be outstanding flips when we reach here. */
g_return_if_fail (kms_onscreen->next_fb_id == 0);
free_current_bo (onscreen);
if (egl_onscreen->egl_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_onscreen->egl_surface);
egl_onscreen->egl_surface = EGL_NO_SURFACE;
}
if (kms_onscreen->surface)
{
gbm_surface_destroy (kms_onscreen->surface);
kms_onscreen->surface = NULL;
}
g_slice_free (CoglOnscreenKMS, kms_onscreen);
g_slice_free (CoglOnscreenEGL, onscreen->winsys);
onscreen->winsys = NULL;
}
static void
page_flip_handler (int fd,
unsigned int frame,
unsigned int sec,
unsigned int usec,
void *data)
{
CoglFlipKMS *flip = data;
/* We're only ready to dispatch a swap notification once all outputs
* have flipped... */
flip->pending--;
if (flip->pending == 0)
{
CoglOnscreen *onscreen = flip->onscreen;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenKMS *kms_onscreen = egl_onscreen->platform;
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
queue_swap_notify_for_onscreen (onscreen);
free_current_bo (onscreen);
kms_onscreen->current_fb_id = kms_onscreen->next_fb_id;
kms_onscreen->next_fb_id = 0;
kms_onscreen->current_bo = kms_onscreen->next_bo;
kms_onscreen->next_bo = NULL;
cogl_object_unref (flip->onscreen);
g_slice_free (CoglFlipKMS, flip);
}
}