1 files changed, 19 insertions, 2 deletions
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index dc562f1..1842949 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -104,7 +104,8 @@ SurfaceFlinger::SurfaceFlinger()
         mLastSwapBufferTime(0),
         mDebugInTransaction(0),
         mLastTransactionTime(0),
-        mBootFinished(false)
+        mBootFinished(false),
+        mUseDithering(0)
 {
     ALOGI("SurfaceFlinger is starting");
 
@@ -122,8 +123,13 @@ SurfaceFlinger::SurfaceFlinger()
             mDebugDDMS = 0;
         }
     }
+
+    property_get("persist.sys.use_dithering", value, "1");
+    mUseDithering = atoi(value);
+
     ALOGI_IF(mDebugRegion, "showupdates enabled");
     ALOGI_IF(mDebugDDMS, "DDMS debugging enabled");
+    ALOGI_IF(mUseDithering, "use dithering");
 
 #ifdef SAMSUNG_HDMI_SUPPORT
     ALOGD(">>> Run service");
@@ -429,7 +435,11 @@ void SurfaceFlinger::initializeGL(EGLDisplay display) {
     glPixelStorei(GL_PACK_ALIGNMENT, 4);
     glEnableClientState(GL_VERTEX_ARRAY);
     glShadeModel(GL_FLAT);
-    glDisable(GL_DITHER);
+    if (mUseDithering == 2) {
+        glEnable(GL_DITHER);
+    } else {
+        glDisable(GL_DITHER);
+    }
     glDisable(GL_CULL_FACE);
 
     struct pack565 {
@@ -467,6 +477,9 @@ void SurfaceFlinger::initializeGL(EGLDisplay display) {
     ALOGI("extensions: %s", extensions.getExtension());
     ALOGI("GL_MAX_TEXTURE_SIZE = %d", mMaxTextureSize);
     ALOGI("GL_MAX_VIEWPORT_DIMS = %d x %d", mMaxViewportDims[0], mMaxViewportDims[1]);
+
+    // XXX Assume bit depth for red is equal to minimum depth of all colors
+    mMinColorDepth = r;
 }
 
 status_t SurfaceFlinger::readyToRun()
@@ -564,6 +577,10 @@ uint32_t SurfaceFlinger::getMaxTextureSize() const {
     return mMaxTextureSize;
 }
 
+uint32_t SurfaceFlinger::getMinColorDepth() const {
+    return mMinColorDepth;
+}
+
 uint32_t SurfaceFlinger::getMaxViewportDims() const {
     return mMaxViewportDims[0] < mMaxViewportDims[1] ?
             mMaxViewportDims[0] : mMaxViewportDims[1];