mesa: fix incorrect size/error test in _mesa_GetUnsignedBytevEXT()

get_value_size() returns -1 for an error.  The similar check in
_mesa_GetUnsignedBytei_vEXT() is correct.

Found by chance.  There are apparently no Piglit tests which exercise
glGetUnsignedBytei_vEXT() or glGetUnsignedBytevEXT().

Reviewed-by: Andres Rodriguez <andresx7@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 5fee9a60bc323b739d2b7aac76344a7e3d4ccba9..bafd1e35b294ab5dbf26c1222f6fcaf6252ea7e4 100644 (file)
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -2064,7 +2064,7 @@ _mesa_GetUnsignedBytevEXT(GLenum pname, GLubyte *data)
 
    d = find_value(func, pname, &p, &v);
    size = get_value_size(d->type, &v);
-   if (size >= 0) {
+   if (size <= 0) {
       _mesa_problem(ctx, "invalid value type in GetUnsignedBytevEXT()");
    }