commit 82aee243796ad9dd70426550f2eb07d1b7c1f8ff
author Mathias Agopian <mathias@google.com> Mon Jul 13 14:30:48 2009 -0700
committer Mathias Agopian <mathias@google.com> Mon Jul 13 14:54:52 2009 -0700
tree 43787293e1c578f112d64c200d960dd5fd99d37c
parent f5a22bcfa64f4f33b5877cd44761363af952b768

automatically detect update-on-demand

modules/gralloc/framebuffer.cpp

diff --git a/modules/gralloc/framebuffer.cpp b/modules/gralloc/framebuffer.cpp
index 748c1b2..0aaa9da 100644
--- a/modules/gralloc/framebuffer.cpp
+++ b/modules/gralloc/framebuffer.cpp
@@ -44,9 +44,6 @@
 // should be a build option
 #define SUPPORTS_UPDATE_ON_DEMAND   1
 
-// fb_fix_screeninfo::id returned on msm7k
-#define MSM_DEV_FB_ID "msmfb"
-
 // numbers of buffers for page flipping
 #define NUM_BUFFERS 2
 
@@ -372,9 +369,10 @@
             const_cast<int&>(dev->device.maxSwapInterval) = 1;
 
 #if SUPPORTS_UPDATE_ON_DEMAND
-            if (!strcmp(m->finfo.id, MSM_DEV_FB_ID)) {
-                dev->device.setUpdateRect   = fb_setUpdateRect;
-                LOGD("msmfb driver detected, enabling UPDATE_ON_DEMAND");
+            if (m->finfo.reserved[0] == 0x5444 && 
+                    m->finfo.reserved[1] == 0x5055) {
+                dev->device.setUpdateRect = fb_setUpdateRect;
+                LOGD("UPDATE_ON_DEMAND supported");
             }
 #endif