From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Sat, 21 May 2016 23:43:42 +0000 (-0400)
Subject: mesa: allow xfb to be active in GLES when geometry shader is enabled.
X-Git-Tag: upstream/17.1.0~9514
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2dabd4970477e956dd353be1a24e81aa1f0c5901;p=platform%2Fupstream%2Fmesa.git

mesa: allow xfb to be active in GLES when geometry shader is enabled.

OES_geometry_shader has wording to allow xfb when using Draw*Indirect
and DrawElements.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
---

diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index a714c0a..c7625c3 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -391,7 +391,8 @@ validate_DrawElements_common(struct gl_context *ctx,
     *   DrawElementsInstanced, and DrawRangeElements while transform feedback
     *   is active and not paused, regardless of mode.
     */
-   if (_mesa_is_gles3(ctx) && _mesa_is_xfb_active_and_unpaused(ctx)) {
+   if (_mesa_is_gles3(ctx) && !ctx->Extensions.OES_geometry_shader &&
+       _mesa_is_xfb_active_and_unpaused(ctx)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "%s(transform feedback active)", caller);
       return false;
@@ -741,7 +742,8 @@ valid_draw_indirect(struct gl_context *ctx,
     *      "An INVALID_OPERATION error is generated if
     *      transform feedback is active and not paused."
     */
-   if (_mesa_is_gles31(ctx) && _mesa_is_xfb_active_and_unpaused(ctx)) {
+   if (_mesa_is_gles31(ctx) && !ctx->Extensions.OES_geometry_shader &&
+       _mesa_is_xfb_active_and_unpaused(ctx)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "%s(TransformFeedback is active and not paused)", name);
    }