From: Matthew Waters <matthew@centricular.com>
Date: Wed, 28 Jun 2017 04:45:18 +0000 (+1000)
Subject: gl: reset gl->DrawBuffer to the necessary values
X-Git-Tag: accepted/tizen/unified/20220217.153506~2^2~10^2~9^2~12^2~2^2~111^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e9bcddb7c61d681ef24cc901bff25fdc2b3ac555;p=platform%2Fupstream%2Fgstreamer.git

gl: reset gl->DrawBuffer to the necessary values

GL_COLOR_ATTACHMENT0 when a framebuffer is bound
GL_BACK if no framebuffer is bound

https://bugzilla.gnome.org/show_bug.cgi?id=784210
---

diff --git a/gst-libs/gst/gl/gstglcolorconvert.c b/gst-libs/gst/gl/gstglcolorconvert.c
index 89edb16..5947c6a 100644
--- a/gst-libs/gst/gl/gstglcolorconvert.c
+++ b/gst-libs/gst/gl/gstglcolorconvert.c
@@ -2504,7 +2504,7 @@ _do_convert_draw (GstGLContext * context, GstGLColorConvert * convert)
   _unbind_buffer (convert);
 
   if (gl->DrawBuffer)
-    gl->DrawBuffer (GL_NONE);
+    gl->DrawBuffer (GL_COLOR_ATTACHMENT0);
 
   /* we are done with the shader */
   gst_gl_context_clear_shader (context);
diff --git a/gst-libs/gst/gl/gstglframebuffer.c b/gst-libs/gst/gl/gstglframebuffer.c
index f628997..5720cc0 100644
--- a/gst-libs/gst/gl/gstglframebuffer.c
+++ b/gst-libs/gst/gl/gstglframebuffer.c
@@ -288,7 +288,7 @@ gst_gl_framebuffer_draw_to_texture (GstGLFramebuffer * fb, GstGLMemory * mem,
 
   if (gst_gl_context_get_gl_api (fb->context) & (GST_GL_API_OPENGL |
           GST_GL_API_OPENGL3))
-    gl->DrawBuffer (GL_NONE);
+    gl->DrawBuffer (GL_COLOR_ATTACHMENT0);
   gl->Viewport (viewport_dim[0], viewport_dim[1], viewport_dim[2],
       viewport_dim[3]);
   gst_gl_context_clear_framebuffer (fb->context);
diff --git a/gst-libs/gst/gl/gstglviewconvert.c b/gst-libs/gst/gl/gstglviewconvert.c
index acb9c85..7f08d19 100644
--- a/gst-libs/gst/gl/gstglviewconvert.c
+++ b/gst-libs/gst/gl/gstglviewconvert.c
@@ -1946,7 +1946,7 @@ _do_view_convert_draw (GstGLContext * context, GstGLViewConvert * viewconvert)
     gl->BindVertexArray (0);
   _unbind_buffer (viewconvert);
   if (gl->DrawBuffer)
-    gl->DrawBuffer (GL_NONE);
+    gl->DrawBuffer (GL_COLOR_ATTACHMENT0);
   /* we are done with the shader */
   gst_gl_context_clear_shader (context);
   gl->Viewport (viewport_dim[0], viewport_dim[1], viewport_dim[2],