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draw: check bitshift against PIPE_MAX_SHADER_OUTPUS

This commit is contained in:
Brian Paul 2010-09-20 15:34:02 -06:00
parent 1662c31703
commit 77af109554
1 changed files with 5 additions and 1 deletions
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6
src/gallium/auxiliary/draw/draw_pipe_wide_point.c
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@ -237,7 +237,11 @@ widepoint_first_point(struct draw_stage *stage,
for (i = 0; i < fs->info.num_inputs; i++) {
if (fs->info.input_semantic_name[i] == TGSI_SEMANTIC_GENERIC) {
const int generic_index = fs->info.input_semantic_index[i];
if (rast->sprite_coord_enable & (1 << generic_index)) {
/* Note that sprite_coord enable is a bitfield of
* PIPE_MAX_SHADER_OUTPUTS bits.
*/
if (generic_index < PIPE_MAX_SHADER_OUTPUTS &&
(rast->sprite_coord_enable & (1 << generic_index))) {
/* OK, this generic attribute needs to be replaced with a
* texcoord (see above).
*/