commit 331841b96b92646c93c87627c03f77b892f711cd
author Jamie Gennis <jgennis@google.com> Thu Sep 06 14:52:00 2012 -0700
committer Android (Google) Code Review <android-gerrit@google.com> Thu Sep 06 16:11:37 2012 -0700
tree 2fe3a05c800a44e2f6fd7d94d380fe23ee58b7d8
parent 8893d5bba1191b0dc9db1432868d8dc64de606ad

EGL: add the native_fence_sync extension

This change adds support for the EGL_ANDROID_native_fence_sync extension to the
Android EGL layer.  It also fixes a couple minor issues with the extension spec.

Change-Id: Ic8829d21f37b701f33aa9c72c3d25e88e03fa3cd

opengl/libs/EGL/eglApi.cpp

diff --git a/opengl/libs/EGL/eglApi.cpp b/opengl/libs/EGL/eglApi.cpp
index 1bc4eb7..014ac61 100644
--- a/opengl/libs/EGL/eglApi.cpp
+++ b/opengl/libs/EGL/eglApi.cpp
@@ -652,6 +652,7 @@
     // These extensions should not be exposed to applications. They're used
     // internally by the Android EGL layer.
     if (!strcmp(procname, "eglSetBlobCacheFuncsANDROID") ||
+        !strcmp(procname, "eglDupNativeFenceFDANDROID") ||
         !strcmp(procname, "eglHibernateProcessIMG") ||
         !strcmp(procname, "eglAwakenProcessIMG")) {
         return NULL;
@@ -1190,7 +1191,20 @@
 // ANDROID extensions
 // ----------------------------------------------------------------------------
 
-/* ANDROID extensions entry-point go here */
+EGLint eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSyncKHR sync)
+{
+    clearError();
+
+    const egl_display_ptr dp = validate_display(dpy);
+    if (!dp) return EGL_NO_NATIVE_FENCE_FD_ANDROID;
+
+    EGLint result = EGL_NO_NATIVE_FENCE_FD_ANDROID;
+    egl_connection_t* const cnx = &gEGLImpl;
+    if (cnx->dso && cnx->egl.eglDupNativeFenceFDANDROID) {
+        result = cnx->egl.eglDupNativeFenceFDANDROID(dp->disp.dpy, sync);
+    }
+    return result;
+}
 
 // ----------------------------------------------------------------------------
 // NVIDIA extensions

opengl/libs/EGL/egl_display.cpp

diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 80072ab..371df43 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -59,6 +59,7 @@
 // extensions not exposed to applications but used by the ANDROID system
 //      "EGL_ANDROID_recordable "               // mandatory
 //      "EGL_ANDROID_blob_cache "               // strongly recommended
+//      "EGL_ANDROID_native_fence_sync "        // strongly recommended
 //      "EGL_IMG_hibernate_process "            // optional
 
 extern void initEglTraceLevel();

opengl/libs/EGL/egl_entries.in

diff --git a/opengl/libs/EGL/egl_entries.in b/opengl/libs/EGL/egl_entries.in
index 9feb716..4cbd55f 100644
--- a/opengl/libs/EGL/egl_entries.in
+++ b/opengl/libs/EGL/egl_entries.in
@@ -62,6 +62,7 @@
 
 EGL_ENTRY(EGLBoolean, eglSetSwapRectangleANDROID, EGLDisplay, EGLSurface, EGLint, EGLint, EGLint, EGLint)
 EGL_ENTRY(EGLClientBuffer, eglGetRenderBufferANDROID, EGLDisplay, EGLSurface)
+EGL_ENTRY(EGLint, eglDupNativeFenceFDANDROID, EGLDisplay, EGLSyncKHR)
 
 /* NVIDIA extensions */