Mesa (master): mesa: added glEnable/Disable state for transform feedback

[Brian Paul]

Module: Mesa
Branch: master
Commit: 86a1ea31ed6afdb9789671ca3fdd79709ea9f112
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=86a1ea31ed6afdb9789671ca3fdd79709ea9f112

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Mar 30 19:54:51 2010 -0600

mesa: added glEnable/Disable state for transform feedback

---

 src/mesa/main/enable.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index f5c88a6..f9decc3 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -982,6 +982,16 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
 	 ctx->Texture.CubeMapSeamless = state;
 	 break;
 
+#if FEATURE_EXT_transform_feedback
+      case GL_RASTERIZER_DISCARD:
+	 CHECK_EXTENSION(EXT_transform_feedback, cap);
+         if (ctx->TransformFeedback.RasterDiscard != state) {
+            ctx->TransformFeedback.RasterDiscard = state;
+            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+         }
+         break;
+#endif
+
       default:
          _mesa_error(ctx, GL_INVALID_ENUM,
                      "%s(0x%x)", state ? "glEnable" : "glDisable", cap);
@@ -1493,6 +1503,12 @@ _mesa_IsEnabled( GLenum cap )
 	 CHECK_EXTENSION(ARB_seamless_cube_map);
 	 return ctx->Texture.CubeMapSeamless;
 
+#if FEATURE_EXT_transform_feedback
+      case GL_RASTERIZER_DISCARD:
+	 CHECK_EXTENSION(EXT_transform_feedback);
+         return ctx->TransformFeedback.RasterDiscard;
+#endif
+
       default:
          _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap);
 	 return GL_FALSE;