Mesa (master): mesa: querying GL_TEXTURE_COMPRESSED_IMAGE_SIZE for a buffer obj is illegal

[Brian Paul]

Module: Mesa
Branch: master
Commit: a6af24ee14a3e3cef99e96db539aa2abc911e6e0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a6af24ee14a3e3cef99e96db539aa2abc911e6e0

Author: Brian Paul <brianp at vmware.com>
Date:   Fri Aug 17 10:50:39 2012 -0600

mesa: querying GL_TEXTURE_COMPRESSED_IMAGE_SIZE for a buffer obj is illegal

GL_INVALID_OPERATION is to be raised when querying a non-compressed
image/buffer.  Since a buffer object can't have a compressed format this
query always generates an error.

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/main/texparam.c |   10 +++-------
 1 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 8a5abe5..5a5547d 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -1136,13 +1136,9 @@ get_tex_level_parameter_buffer(struct gl_context *ctx,
 
       /* GL_ARB_texture_compression */
       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
-         if (_mesa_is_format_compressed(texFormat) &&
-             !_mesa_is_proxy_texture(target)) {
-            *params = _mesa_format_image_size(texFormat, bo->Size, 0, 0);
-         } else {
-            _mesa_error(ctx, GL_INVALID_OPERATION,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
+         /* Always illegal for GL_TEXTURE_BUFFER */
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glGetTexLevelParameter[if]v(pname)");
          break;
 
       /* GL_ARB_texture_float */