intel: Add an assert for glCopyTexSubImage() being called on MSAA buffers.

This is just in case someone else trips over this due to our weird reuse
of this code in glBlitFramebuffer().

Reviewed-and-tested-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Paul Berry <stereotype441@gmail.com>

diff --git a/src/mesa/drivers/dri/intel/intel_tex_copy.c b/src/mesa/drivers/dri/intel/intel_tex_copy.c
index 94e90da5eaa87cc991ebf6d854caa7555484cf93..4a13b9ae2c2e4cdab6d3b7c633b19e9daf78d6f4 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_tex_copy.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_copy.c
@@ -62,6 +62,12 @@ intel_copy_texsubimage(struct intel_context *intel,
 
    intel_prepare_render(intel);
 
+   /* glCopyTexSubImage() can't be called on multisampled renderbuffers or
+    * textures.
+    */
+   assert(!irb->Base.Base.NumSamples);
+   assert(!intelImage->base.Base.NumSamples);
+
    if (!intelImage->mt || !irb || !irb->mt) {
       if (unlikely(INTEL_DEBUG & DEBUG_PERF))
         fprintf(stderr, "%s fail %p %p (0x%08x)\n",