commit 573554106db499d323bea12ff00363b1816f8c8a
author Sean Paul <seanpaul@chromium.org> Sat Sep 19 09:14:34 2015 -0400
committer Sean Paul <seanpaul@chromium.org> Thu Oct 01 14:11:24 2015 -0400
tree d9f5fe8cace780a4c44fb964474ca9f9560663b9
parent 7acc59be7f12ad45b9abfa56c2d21726edf6224e

drm_hwcomposer: Process modesets via compositor

This patch queues modeset in the compositor for application on
the next frame. This allows us to perform the modeset atomically
with the first frame that comes in after the mode is changed.

Change-Id: I6bb9edd17bbdd6dbee5c0474f2e43599781cc7a7
Signed-off-by: Sean Paul <seanpaul@chromium.org>

drmcomposition.cpp

diff --git a/drmcomposition.cpp b/drmcomposition.cpp
index 634b0bb..55fa00c 100644
--- a/drmcomposition.cpp
+++ b/drmcomposition.cpp
@@ -90,6 +90,10 @@
   return composition_map_[display]->SetDpmsMode(dpms_mode);
 }
 
+int DrmComposition::SetDisplayMode(int display, const DrmMode &display_mode) {
+  return composition_map_[display]->SetDisplayMode(display_mode);
+}
+
 std::unique_ptr<DrmDisplayComposition> DrmComposition::TakeDisplayComposition(
     int display) {
   return std::move(composition_map_[display]);
@@ -106,7 +110,8 @@
      * TODO: re-visit this and potentially disable leftover planes after the
      *       active compositions have gobbled up all they can
      */
-    if (comp->type() == DRM_COMPOSITION_TYPE_EMPTY)
+    if (comp->type() == DRM_COMPOSITION_TYPE_EMPTY ||
+        comp->type() == DRM_COMPOSITION_TYPE_MODESET)
       continue;
 
     DrmCrtc *crtc = drm_->GetCrtcForDisplay(display);