ozone: support gfx::BufferFormat::RGBX_8888 as a native pixmap format.

ui/ozone/platform/drm/common/drm_util.cc

Index: ui/ozone/platform/drm/common/drm_util.cc
diff --git a/ui/ozone/platform/drm/common/drm_util.cc b/ui/ozone/platform/drm/common/drm_util.cc
index 57f3488fbc807d9b2058052f75843200806a7b16..78dbbc3c74699fe5f7d0dd4a9025f19f72be860e 100644
--- a/ui/ozone/platform/drm/common/drm_util.cc
+++ b/ui/ozone/platform/drm/common/drm_util.cc
@@ -273,6 +273,10 @@ DisplaySnapshot_Params CreateDisplaySnapshotParams(
 
 int GetFourCCFormatFromBufferFormat(gfx::BufferFormat format) {
   switch (format) {
+    case gfx::BufferFormat::RGBA_8888:
+      return DRM_FORMAT_ABGR8888;
+    case gfx::BufferFormat::RGBX_8888:
+      return DRM_FORMAT_XBGR8888;
     case gfx::BufferFormat::BGRA_8888:
       return DRM_FORMAT_ARGB8888;
     case gfx::BufferFormat::BGRX_8888:
@@ -287,6 +291,10 @@ int GetFourCCFormatFromBufferFormat(gfx::BufferFormat format) {
 
 gfx::BufferFormat GetBufferFormatFromFourCCFormat(int format) {
   switch (format) {
+    case DRM_FORMAT_ABGR8888:
+      return gfx::BufferFormat::RGBA_8888;
+    case DRM_FORMAT_XBGR8888:
+      return gfx::BufferFormat::RGBX_8888;
     case DRM_FORMAT_ARGB8888:
       return gfx::BufferFormat::BGRA_8888;
     case DRM_FORMAT_XRGB8888:
@@ -298,4 +306,21 @@ gfx::BufferFormat GetBufferFormatFromFourCCFormat(int format) {
       return gfx::BufferFormat::BGRA_8888;
   }
 }
+
+int GetFourCCFormatForFramebuffer(gfx::BufferFormat format) {

[dshwang, 2015/12/13 05:34:44]

Now, this code is maintained by this function.

+  // Currently, drm supports 24 bitcolordepth for hardware overlay.
+  switch (format) {
+    case gfx::BufferFormat::RGBA_8888:
+    case gfx::BufferFormat::RGBX_8888:
+      return DRM_FORMAT_XBGR8888;
+    case gfx::BufferFormat::BGRA_8888:
+    case gfx::BufferFormat::BGRX_8888:
+      return DRM_FORMAT_XRGB8888;
+    case gfx::BufferFormat::UYVY_422:
+      return DRM_FORMAT_UYVY;
+    default:
+      NOTREACHED();
+      return 0;
+  }
+}
 }  // namespace ui