From: Matthew Waters <matthew@centricular.com>
Date: Thu, 7 May 2015 05:25:10 +0000 (+0700)
Subject: glmemory: properly detect (hopefully) the correct ext_rg/arb_rg variant
X-Git-Tag: 1.19.3~511^2~1989^2~881
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cc587ce1f153b6db3ee00e8813664460eb79151b;p=platform%2Fupstream%2Fgstreamer.git

glmemory: properly detect (hopefully) the correct ext_rg/arb_rg variant

GL_EXT_texture_rg is only valid for GLES2. GLES3 uses similar wording to
the GL_ARB_texture_rg which requires a sized internal format that the
GL_EXT_texture_rg does not require.

https://www.khronos.org/registry/gles/extensions/EXT/EXT_texture_rg.txt
https://www.opengl.org/registry/specs/ARB/texture_rg.txt
---

diff --git a/gst-libs/gst/gl/gstglmemory.c b/gst-libs/gst/gl/gstglmemory.c
index 254e617..a4dc7dc 100644
--- a/gst-libs/gst/gl/gstglmemory.c
+++ b/gst-libs/gst/gl/gstglmemory.c
@@ -320,7 +320,7 @@ _sized_gl_format_from_gl_format_type (GstGLContext * context, GLenum format,
     case GL_RG:
       switch (type) {
         case GL_UNSIGNED_BYTE:
-          if (ext_texture_rg)
+          if (!USING_GLES3 (context) && USING_GLES2 (context) && ext_texture_rg)
             return GL_RG;
           return GL_RG8;
           break;
@@ -329,7 +329,7 @@ _sized_gl_format_from_gl_format_type (GstGLContext * context, GLenum format,
     case GL_RED:
       switch (type) {
         case GL_UNSIGNED_BYTE:
-          if (ext_texture_rg)
+          if (!USING_GLES3 (context) && USING_GLES2 (context) && ext_texture_rg)
             return GL_RED;
           return GL_R8;
           break;