commit ac127dc31bd071ed522f5cd48a910065756c8ded
author Chih-Chung Chang <chihchung@google.com> Fri Jan 22 16:30:39 2010 -0800
committer Chih-Chung Chang <chihchung@google.com> Fri Jan 22 16:30:39 2010 -0800
tree cfeba59fe0f2680256e38fb95a906e8b3ca5680b
parent 7c45147f3537bc777a04545a6f0bc70550df5269

Add support for 180/270 degrees rotation.

include/ui/ISurface.h

diff --git a/include/ui/ISurface.h b/include/ui/ISurface.h
index b37a8ac..c7f181c 100644
--- a/include/ui/ISurface.h
+++ b/include/ui/ISurface.h
@@ -55,8 +55,11 @@
     class BufferHeap {
     public:
         enum {
-            /* rotate source image 90 degrees */
+            /* rotate source image */
+            ROT_0     = 0,
             ROT_90    = HAL_TRANSFORM_ROT_90,
+            ROT_180   = HAL_TRANSFORM_ROT_180,
+            ROT_270   = HAL_TRANSFORM_ROT_270,
         };
         BufferHeap();
         

libs/surfaceflinger/LayerBase.cpp

diff --git a/libs/surfaceflinger/LayerBase.cpp b/libs/surfaceflinger/LayerBase.cpp
index 17db6f4..4d7bef8 100644
--- a/libs/surfaceflinger/LayerBase.cpp
+++ b/libs/surfaceflinger/LayerBase.cpp
@@ -444,12 +444,21 @@
         glLoadIdentity();
 
         // the texture's source is rotated
-        if (texture.transform == HAL_TRANSFORM_ROT_90) {
-            // TODO: handle the other orientations
-            glTranslatef(0, 1, 0);
-            glRotatef(-90, 0, 0, 1);
+        switch (texture.transform) {
+            case HAL_TRANSFORM_ROT_90:
+                glTranslatef(0, 1, 0);
+                glRotatef(-90, 0, 0, 1);
+                break;
+            case HAL_TRANSFORM_ROT_180:
+                glTranslatef(1, 1, 0);
+                glRotatef(-180, 0, 0, 1);
+                break;
+            case HAL_TRANSFORM_ROT_270:
+                glTranslatef(1, 0, 0);
+                glRotatef(-270, 0, 0, 1);
+                break;
         }
-        
+
         if (texture.NPOTAdjust) {
             glScalef(texture.wScale, texture.hScale, 1.0f);
         }