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EGL: add the native_fence_sync extension

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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
This commit is contained in:
Jamie Gennis 2012-09-06 14:52:00 -07:00 committed by Android (Google) Code Review
parent 8893d5bba1
commit 331841b96b
5 changed files with 34 additions and 4 deletions
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14
opengl/include/EGL/eglext.h
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@ -270,6 +270,20 @@ typedef EGLBoolean (EGLAPIENTRYP PFEGLHIBERNATEPROCESSIMGPROC)(void);
typedef EGLBoolean (EGLAPIENTRYP PFEGLAWAKENPROCESSIMGPROC)(void);
#endif
/* EGL_ANDROID_native_fence_sync
*/
#ifndef EGL_ANDROID_native_fence_sync
#define EGL_ANDROID_native_fence_sync 1
#define EGL_SYNC_NATIVE_FENCE_ANDROID 0x3144
#define EGL_SYNC_NATIVE_FENCE_FD_ANDROID 0x3145
#define EGL_NO_NATIVE_FENCE_FD_ANDROID -1
#define EGL_SYNC_NATIVE_FENCE_SIGNALED_ANDROID 0x3146
#ifdef EGL_EGLEXT_PROTOTYPES
EGLAPI EGLint EGLAPIENTRY eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSyncKHR sync);
#endif
typedef EGLint (EGLAPIENTRYP PFNEGLDUPNATIVEFENCEFDANDROID) (EGLDisplay dpy, EGLSyncKHR sync);
#endif
#ifdef __cplusplus
}
#endif

16
opengl/libs/EGL/eglApi.cpp
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@ -652,6 +652,7 @@ __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
// 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 @@ EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync,
// 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

1
opengl/libs/EGL/egl_display.cpp
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@ -59,6 +59,7 @@ static char const * const sExtensionString =
// 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();

1
opengl/libs/EGL/egl_entries.in
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@ -62,6 +62,7 @@ EGL_ENTRY(EGLBoolean, eglGetSyncAttribKHR, EGLDisplay, EGLSyncKHR, EGLint,
EGL_ENTRY(EGLBoolean, eglSetSwapRectangleANDROID, EGLDisplay, EGLSurface, EGLint, EGLint, EGLint, EGLint)
EGL_ENTRY(EGLClientBuffer, eglGetRenderBufferANDROID, EGLDisplay, EGLSurface)
EGL_ENTRY(EGLint, eglDupNativeFenceFDANDROID, EGLDisplay, EGLSyncKHR)
/* NVIDIA extensions */

6
opengl/specs/EGL_ANDROID_native_fence_sync.txt
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@ -74,7 +74,7 @@ New Tokens
Accepted by the <attrib_list> parameter of eglCreateSyncKHR, and returned
by eglDupNativeFenceFDANDROID in the event of an error:
EGL_NO_NATIVE_FENCE_ANDROID -1
EGL_NO_NATIVE_FENCE_FD_ANDROID -1
Returned in <value> when eglGetSyncAttribKHR is called with <attribute>
EGL_SYNC_CONDITION_KHR:
@ -90,7 +90,7 @@ Changes to Chapter 3 of the EGL 1.2 Specification (EGL Functions and Errors)
object is created. In this case the EGL_SYNC_NATIVE_FENCE_FD_ANDROID
attribute may optionally be specified. If this attribute is specified, it
must be set to either a file descriptor that refers to a native fence
object or to the value EGL_NO_NATIVE_FENCE_ANDROID.
object or to the value EGL_NO_NATIVE_FENCE_FD_ANDROID.
The default values for the EGL native fence sync object attributes are as
follows:
@ -202,7 +202,7 @@ Changes to Chapter 3 of the EGL 1.2 Specification (EGL Functions and Errors)
The command
EGLint eglDupNativeFenceFDANDROID(
EGLdisplay dpy,
EGLDisplay dpy,
EGLSyncKHR sync);
duplicates the file descriptor stored in the