Add GL_EXT_EGL_sync extension
This commit adds the GL_EXT_EGL_sync OpenGL extension to extend
EGL_KHR_fence_sync with OpenGL client API support.
While arguably OpenGL already has GL_ARB_sync, there are platform
extensions that are layered on top EGL_KHR_fence_sync rather than
GL_ARB_sync. Without OpenGL support of EGL_KHR_fence_sync, these
extension can't be used with an OpenGL command stream. One notable
example is the EGL_ANDROID_native_fence_sync extension, which enables
`linux_sync_file` objects to be used as the backend of EGL sync objects.
Linux sync file objects can be used to synchronize buffer access between
processes dispatching OpenGL drawing commands, or to synchronize with
the Linux KMS display subsystem (aka 'explicit fencing').
diff --git a/api/GL/glcorearb.h b/api/GL/glcorearb.h
index e568510..e8515a1 100755
--- a/api/GL/glcorearb.h
+++ b/api/GL/glcorearb.h
@@ -4026,6 +4026,10 @@
#endif
#endif /* GL_EXT_EGL_image_storage */
+#ifndef GL_EXT_EGL_sync
+#define GL_EXT_EGL_sync 1
+#endif /* GL_EXT_EGL_sync */
+
#ifndef GL_EXT_debug_label
#define GL_EXT_debug_label 1
#define GL_PROGRAM_PIPELINE_OBJECT_EXT 0x8A4F
diff --git a/api/GL/glext.h b/api/GL/glext.h
index 8aa0157..8574817 100644
--- a/api/GL/glext.h
+++ b/api/GL/glext.h
@@ -51,7 +51,7 @@
#define GLAPI extern
#endif
-#define GL_GLEXT_VERSION 20190805
+#define GL_GLEXT_VERSION 20190911
#include <KHR/khrplatform.h>
@@ -6481,6 +6481,10 @@
#endif
#endif /* GL_EXT_EGL_image_storage */
+#ifndef GL_EXT_EGL_sync
+#define GL_EXT_EGL_sync 1
+#endif /* GL_EXT_EGL_sync */
+
#ifndef GL_EXT_abgr
#define GL_EXT_abgr 1
#define GL_ABGR_EXT 0x8000
diff --git a/api/GL/glxext.h b/api/GL/glxext.h
index ea970a0..662c265 100755
--- a/api/GL/glxext.h
+++ b/api/GL/glxext.h
@@ -34,7 +34,7 @@
** https://github.com/KhronosGroup/OpenGL-Registry
*/
-#define GLX_GLXEXT_VERSION 20190822
+#define GLX_GLXEXT_VERSION 20190911
/* Generated C header for:
* API: glx
diff --git a/api/GLES/gl.h b/api/GLES/gl.h
index ea586eb..e59ff13 100644
--- a/api/GLES/gl.h
+++ b/api/GLES/gl.h
@@ -36,7 +36,7 @@
#include <GLES/glplatform.h>
-/* Generated on date 20190805 */
+/* Generated on date 20190911 */
/* Generated C header for:
* API: gles1
diff --git a/api/GLES/glext.h b/api/GLES/glext.h
index be8a569..49df24e 100644
--- a/api/GLES/glext.h
+++ b/api/GLES/glext.h
@@ -38,7 +38,7 @@
#define GL_APIENTRYP GL_APIENTRY*
#endif
-/* Generated on date 20190805 */
+/* Generated on date 20190911 */
/* Generated C header for:
* API: gles1
diff --git a/api/GLES2/gl2.h b/api/GLES2/gl2.h
index f1e3dc6..e43cd5d 100644
--- a/api/GLES2/gl2.h
+++ b/api/GLES2/gl2.h
@@ -44,7 +44,7 @@
#define GL_GLES_PROTOTYPES 1
#endif
-/* Generated on date 20190805 */
+/* Generated on date 20190911 */
/* Generated C header for:
* API: gles2
diff --git a/api/GLES2/gl2ext.h b/api/GLES2/gl2ext.h
index cab1c45..141e4d6 100644
--- a/api/GLES2/gl2ext.h
+++ b/api/GLES2/gl2ext.h
@@ -38,7 +38,7 @@
#define GL_APIENTRYP GL_APIENTRY*
#endif
-/* Generated on date 20190805 */
+/* Generated on date 20190911 */
/* Generated C header for:
* API: gles2
diff --git a/api/GLES3/gl3.h b/api/GLES3/gl3.h
index 838286c..822f4c6 100644
--- a/api/GLES3/gl3.h
+++ b/api/GLES3/gl3.h
@@ -44,7 +44,7 @@
#define GL_GLES_PROTOTYPES 1
#endif
-/* Generated on date 20190805 */
+/* Generated on date 20190911 */
/* Generated C header for:
* API: gles2
diff --git a/extensions/EXT/EXT_EGL_sync.txt b/extensions/EXT/EXT_EGL_sync.txt
new file mode 100644
index 0000000..3f2c70b
--- /dev/null
+++ b/extensions/EXT/EXT_EGL_sync.txt
@@ -0,0 +1,85 @@
+Name
+
+ EXT_EGL_sync
+
+Name Strings
+
+ GL_EXT_EGL_sync
+
+Contact
+
+ Heinrich Fink, DAQRI (heinrich.fink 'at' daqri.com)
+
+Contributors
+
+ Heinrich Fink, DAQRI
+ Daniel Stone, Collabora
+ Marek Olšák, AMD
+
+Status
+
+ Proposal
+
+Version
+
+ Version 4, Sept 11, 2019
+
+Number
+
+ OpenGL Extension #546
+
+Dependencies
+
+ EGL_KHR_fence_sync is required.
+
+ This extension is written against the EGL 1.2 Specification, as modified by
+ the EGL_KHR_fence_sync extension.
+
+Overview
+
+ This extension extends EGL_KHR_fence_sync with client API support for
+ OpenGL (compatibility or core profiles) as an EXT extension.
+
+ The "GL_EXT_EGL_sync" string indicates that a fence sync object can be
+ created in association with a fence command placed in the command stream
+ of a bound OpenGL context.
+
+IP Status
+
+ None
+
+New Procedures and Functions
+
+ None
+
+New Tokens
+
+ None
+
+Additions to Chapter 3 of the EGL 1.2 Specification (EGL Functions and Errors)
+
+ Modify Section 3.8.1 Sync Objects, page 43
+
+ After "Each client API which supports..." add a new paragraph:
+
+ If the GL_EXT_EGL_sync extension is supported by OpenGL (compatibility or
+ core profile), a fence sync object may be created when the currently bound API
+ is OpenGL.
+
+Errors
+
+ None
+
+Revision History
+
+ Version 4, Sept 11th, 2019
+ Change scope from MESA to EXT on request by James Jones (NVIDIA)
+
+ Version 3, Sept 6th, 2019
+ Update extension no
+
+ Version 2, July 29th, 2019
+ Update extension no in draft
+
+ Version 1, June 5th, 2019
+ Initial draft (Heinrich Fink)
diff --git a/extensions/glext.php b/extensions/glext.php
index 9baab5d..8848c66 100644
--- a/extensions/glext.php
+++ b/extensions/glext.php
@@ -1029,4 +1029,6 @@
</li>
<li value=545><a href="extensions/NV/GLX_NV_multigpu_context.txt">GLX_NV_multigpu_context</a>
</li>
+<li value=546><a href="extensions/EXT/EXT_EGL_sync.txt">GL_EXT_EGL_sync</a>
+</li>
</ol>
diff --git a/extensions/registry.py b/extensions/registry.py
index acd3d7f..966b3a6 100644
--- a/extensions/registry.py
+++ b/extensions/registry.py
@@ -1801,6 +1801,12 @@
'flags' : { 'public' },
'url' : 'extensions/EXT/EXT_EGL_image_storage.txt',
},
+ 'GL_EXT_EGL_sync' : {
+ 'number' : 546,
+ 'flags' : { 'public' },
+ 'supporters' : { 'MESA' },
+ 'url' : 'extensions/EXT/EXT_EGL_sync.txt',
+ },
'GL_EXT_memory_object' : {
'number' : 503,
'esnumber' : 280,
diff --git a/xml/gl.xml b/xml/gl.xml
index 00846ff..a2b33d0 100644
--- a/xml/gl.xml
+++ b/xml/gl.xml
@@ -44158,6 +44158,7 @@
<command name="glEGLImageTargetTextureStorageEXT"/>
</require>
</extension>
+ <extension name="GL_EXT_EGL_sync" supported="gl|glcore"/>
<extension name="GL_EXT_YUV_target" supported="gles2">
<require>
<enum name="GL_SAMPLER_EXTERNAL_2D_Y2Y_EXT"/>
