commit a4b740ed89074cda898a30eb1b029b0d3a5de1a5
author Mathias Agopian <mathias@google.com> Mon Oct 05 18:20:39 2009 -0700
committer Mathias Agopian <mathias@google.com> Tue Oct 06 17:24:26 2009 -0700
tree 2c7f89741b0d58e569b1392372ac344b8023267e
parent b26af23744fa73e8bc142b1eb98772fde5970c10

fix [2168528] enable glTexImage2D code path in SF for software-only buffers

libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp

diff --git a/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
index 8a7abec..f84933e 100644
--- a/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
+++ b/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -123,7 +123,7 @@
     EGLint numConfigs=0;
     EGLSurface surface;
     EGLContext context;
-    mFlags = 0;
+    mFlags = CACHED_BUFFERS;
 
     // TODO: all the extensions below should be queried through
     // eglGetProcAddress().
@@ -239,12 +239,17 @@
 
     eglMakeCurrent(display, surface, surface, context);
     const char* const  gl_extensions = (const char*)glGetString(GL_EXTENSIONS);
+    const char* const  gl_renderer = (const char*)glGetString(GL_RENDERER);
     LOGI("OpenGL informations:");
     LOGI("vendor    : %s", glGetString(GL_VENDOR));
-    LOGI("renderer  : %s", glGetString(GL_RENDERER));
+    LOGI("renderer  : %s", gl_renderer);
     LOGI("version   : %s", glGetString(GL_VERSION));
     LOGI("extensions: %s", gl_extensions);
 
+    if (strstr(gl_renderer, "PowerVR SGX 530")) {
+        LOGD("Assuming uncached graphics buffers.");
+        mFlags &= ~CACHED_BUFFERS;
+    }
     if (strstr(gl_extensions, "GL_ARB_texture_non_power_of_two")) {
         mFlags |= NPOT_EXTENSION;
     }

libs/surfaceflinger/DisplayHardware/DisplayHardware.h

diff --git a/libs/surfaceflinger/DisplayHardware/DisplayHardware.h b/libs/surfaceflinger/DisplayHardware/DisplayHardware.h
index cb688b7..6914d0c 100644
--- a/libs/surfaceflinger/DisplayHardware/DisplayHardware.h
+++ b/libs/surfaceflinger/DisplayHardware/DisplayHardware.h
@@ -51,6 +51,7 @@
         PARTIAL_UPDATES         = 0x00020000,   // video driver feature
         SLOW_CONFIG             = 0x00040000,   // software
         SWAP_RECTANGLE          = 0x00080000,
+        CACHED_BUFFERS          = 0x00100000
     };
 
     DisplayHardware(