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test mapsize against 1, not 0 in glPixelMap()

This commit is contained in:
Brian Paul 2002-04-24 20:11:20 +00:00
parent fb68919362
commit df7bd4bf11
1 changed files with 4 additions and 4 deletions
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8
src/mesa/main/pixel.c
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@ -1,10 +1,10 @@
/* $Id: pixel.c,v 1.33 2001/12/18 04:06:45 brianp Exp $ */
/* $Id: pixel.c,v 1.34 2002/04/24 20:11:20 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 4.1
*
* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@ -251,12 +251,12 @@ _mesa_PixelMapfv( GLenum map, GLint mapsize, const GLfloat *values )
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (mapsize<0 || mapsize>MAX_PIXEL_MAP_TABLE) {
if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
return;
}
if (map>=GL_PIXEL_MAP_S_TO_S && map<=GL_PIXEL_MAP_I_TO_A) {
if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
/* test that mapsize is a power of two */
if (_mesa_bitcount((GLuint) mapsize) != 1) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );