diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_screen.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_screen.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c index e240957197..6c2cb3b57e 100644 --- a/src/mesa/drivers/dri/intel/intel_screen.c +++ b/src/mesa/drivers/dri/intel/intel_screen.c @@ -128,8 +128,29 @@ intelDRI2Flush(__DRIdrawable *drawable) static void intelDRI2FlushInvalidate(__DRIdrawable *drawable) { + struct intel_context *intel = drawable->driContextPriv->driverPrivate; + intelDRI2Flush(drawable); drawable->validBuffers = GL_FALSE; + + /* We're using FlushInvalidate as an indicator that a frame is + * done. It's only called immediately after SwapBuffers, so it + * won't affect front-buffer rendering or applications explicitly + * managing swap regions using MESA_copy_buffer. + * + * Wait for the swapbuffers before the one we just emitted, so we don't + * get too many swaps outstanding for apps that are GPU-heavy but not + * CPU-heavy. + * + * Unfortunately, we don't have a handle to the batch containing the swap, + * and getting our hands on that doesn't seem worth it, so we just use the + * first batch we emitted after the last swap. + */ + if (intel->first_post_swapbuffers_batch != NULL) { + drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch); + drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); + intel->first_post_swapbuffers_batch = NULL; + } } static const struct __DRI2flushExtensionRec intelFlushExtension = { |