commit 3094df359d1e6e2ae8ca4e935cc093f563804c96
author Mathias Agopian <mathias@google.com> Mon Jun 18 18:06:45 2012 -0700
committer Mathias Agopian <mathias@google.com> Thu Jun 28 15:51:08 2012 -0700
tree e103ad608725652ec640963481151b59432c7475
parent 852db07d69352ec5f75e16a6e5059f05faabdaf5

First prototype atttempting to support an external display

both API and implementation will change, this is just a prototype
intended to show feasability.

SurfaceFlinger is passed an ISurfaceTexture through a new
callback, it is in turn used to create an EGLSurface which
surfaceflinger will draw into in addition to the main screen.

Change-Id: Id0bbb0b854bb7bae44d57246a90b65d4567f9a21

services/surfaceflinger/DisplayHardware/DisplayHardware.cpp

diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
index e1c4f62..bb537c9 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -224,21 +224,11 @@
 
     // initialize EGL
     EGLint attribs[] = {
-            EGL_SURFACE_TYPE,       EGL_WINDOW_BIT,
-            EGL_NONE,               0,
+            EGL_SURFACE_TYPE,           EGL_WINDOW_BIT,
+            EGL_RECORDABLE_ANDROID,     EGL_TRUE,
             EGL_NONE
     };
 
-    // debug: disable h/w rendering
-    char property[PROPERTY_VALUE_MAX];
-    if (property_get("debug.sf.hw", property, NULL) > 0) {
-        if (atoi(property) == 0) {
-            ALOGW("H/W composition disabled");
-            attribs[2] = EGL_CONFIG_CAVEAT;
-            attribs[3] = EGL_SLOW_CONFIG;
-        }
-    }
-
     // TODO: all the extensions below should be queried through
     // eglGetProcAddress().
 
@@ -248,6 +238,13 @@
 
     EGLConfig config = NULL;
     err = selectConfigForPixelFormat(display, attribs, format, &config);
+    if (err) {
+        // maybe we failed because of EGL_RECORDABLE_ANDROID
+        ALOGW("couldn't find an EGLConfig with EGL_RECORDABLE_ANDROID");
+        attribs[2] = EGL_NONE;
+        err = selectConfigForPixelFormat(display, attribs, format, &config);
+    }
+
     ALOGE_IF(err, "couldn't find an EGLConfig matching the screen format");
     
     EGLint r,g,b,a;