diff options
| -rw-r--r-- | src/mesa/main/accum.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mesa/main/accum.c b/src/mesa/main/accum.c index c1346bab4c..9a32481c93 100644 --- a/src/mesa/main/accum.c +++ b/src/mesa/main/accum.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.3 + * Version: 6.5 * * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. * @@ -76,6 +76,13 @@ _mesa_Accum( GLenum op, GLfloat value ) return; } + if (ctx->DrawBuffer != ctx->ReadBuffer) { + /* See GLX_SGI_make_current_read or WGL_ARB_make_current_read */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glAccum(different read/draw buffers)"); + return; + } + if (ctx->NewState) _mesa_update_state( ctx ); |