From c5378acab92e5d9428e35acc595f09c4bfcb3823 Mon Sep 17 00:00:00 2001
From: Pin Ting <pinting@google.com>
Date: Wed, 19 Sep 2012 15:05:28 +0800
Subject: Use 565 pixel format for pre-JB; use 888 otherwise.

Bug:7189512
Change-Id: Iec5d528fef4f4fc589370339add299a40fc8f26e
---
 .../com/android/gallery3d/common/ApiHelper.java    |  3 +++
 src/com/android/gallery3d/ui/GLRootView.java       |  6 +++++-
 .../gallery3d/ui/GalleryEGLConfigChooser.java      | 24 +++++++++++++++++-----
 3 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java b/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java
index 20d7e1dc6..df6f94048 100644
--- a/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java
+++ b/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java
@@ -38,6 +38,9 @@ public class ApiHelper {
         public static final int JELLY_BEAN_MR1 = 17;
     }
 
+    public static final boolean USE_888_PIXEL_FORMAT =
+            Build.VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN;
+
     public static final boolean ENABLE_PHOTO_EDITOR =
             Build.VERSION.SDK_INT >= VERSION_CODES.ICE_CREAM_SANDWICH;
 
diff --git a/src/com/android/gallery3d/ui/GLRootView.java b/src/com/android/gallery3d/ui/GLRootView.java
index d3969349a..390d58737 100644
--- a/src/com/android/gallery3d/ui/GLRootView.java
+++ b/src/com/android/gallery3d/ui/GLRootView.java
@@ -119,7 +119,11 @@ public class GLRootView extends GLSurfaceView
         setBackgroundDrawable(null);
         setEGLConfigChooser(mEglConfigChooser);
         setRenderer(this);
-        getHolder().setFormat(PixelFormat.RGB_565);
+        if (ApiHelper.USE_888_PIXEL_FORMAT) {
+            getHolder().setFormat(PixelFormat.RGB_888);
+        } else {
+            getHolder().setFormat(PixelFormat.RGB_565);
+        }
 
         // Uncomment this to enable gl error check.
         // setDebugFlags(DEBUG_CHECK_GL_ERROR);
diff --git a/src/com/android/gallery3d/ui/GalleryEGLConfigChooser.java b/src/com/android/gallery3d/ui/GalleryEGLConfigChooser.java
index 7089d3c1d..deeb3b76d 100644
--- a/src/com/android/gallery3d/ui/GalleryEGLConfigChooser.java
+++ b/src/com/android/gallery3d/ui/GalleryEGLConfigChooser.java
@@ -17,6 +17,8 @@ package com.android.gallery3d.ui;
 
 import android.opengl.GLSurfaceView.EGLConfigChooser;
 
+import com.android.gallery3d.common.ApiHelper;
+
 import javax.microedition.khronos.egl.EGL10;
 import javax.microedition.khronos.egl.EGLConfig;
 import javax.microedition.khronos.egl.EGLDisplay;
@@ -31,7 +33,7 @@ class GalleryEGLConfigChooser implements EGLConfigChooser {
 
     private static final String TAG = "GalleryEGLConfigChooser";
 
-    private final int mConfigSpec[] = new int[] {
+    private final int mConfigSpec565[] = new int[] {
             EGL10.EGL_RED_SIZE, 5,
             EGL10.EGL_GREEN_SIZE, 6,
             EGL10.EGL_BLUE_SIZE, 5,
@@ -39,9 +41,19 @@ class GalleryEGLConfigChooser implements EGLConfigChooser {
             EGL10.EGL_NONE
     };
 
+    private final int mConfigSpec888[] = new int[] {
+            EGL10.EGL_RED_SIZE, 8,
+            EGL10.EGL_GREEN_SIZE, 8,
+            EGL10.EGL_BLUE_SIZE, 8,
+            EGL10.EGL_ALPHA_SIZE, 0,
+            EGL10.EGL_NONE
+    };
+
     @Override
     public EGLConfig chooseConfig(EGL10 egl, EGLDisplay display) {
         int[] numConfig = new int[1];
+        int mConfigSpec[] = ApiHelper.USE_888_PIXEL_FORMAT
+                ? mConfigSpec888 : mConfigSpec565;
         if (!egl.eglChooseConfig(display, mConfigSpec, null, 0, numConfig)) {
             throw new RuntimeException("eglChooseConfig failed");
         }
@@ -70,10 +82,12 @@ class GalleryEGLConfigChooser implements EGLConfigChooser {
         // has stencil support but with smallest number of stencil bits. If
         // none is found, choose any one.
         for (int i = 0, n = configs.length; i < n; ++i) {
-            if (egl.eglGetConfigAttrib(
-                display, configs[i], EGL10.EGL_RED_SIZE, value)) {
-                // Filter out ARGB 8888 configs.
-                if (value[0] == 8) continue;
+            if (!ApiHelper.USE_888_PIXEL_FORMAT) {
+                if (egl.eglGetConfigAttrib(
+                    display, configs[i], EGL10.EGL_RED_SIZE, value)) {
+                    // Filter out ARGB 8888 configs.
+                    if (value[0] == 8) continue;
+                }
             }
             if (egl.eglGetConfigAttrib(
                     display, configs[i], EGL10.EGL_STENCIL_SIZE, value)) {
-- 
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