Mesa (master): draw: Handle the case when there isn't a fragment shader.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Fri Jun 22 08:59:21 UTC 2012
Module: Mesa
Branch: master
Commit: b8068afafacc3071cacfbaf71f176a2943341382
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b8068afafacc3071cacfbaf71f176a2943341382
Author: Olivier Galibert <galibert at pobox.com>
Date: Thu Jun 21 19:39:20 2012 +0200
draw: Handle the case when there isn't a fragment shader.
Signed-off-by: Olivier Galibert <galibert at pobox.com>
Signed-off-by: José Fonseca <jfonseca at vmware.com>
---
src/gallium/auxiliary/draw/draw_pipe_clip.c | 27 +++++++++++++++++----------
1 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c
index 2d36eb3..c02d0ef 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_clip.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c
@@ -586,6 +586,9 @@ clip_init_state( struct draw_stage *stage )
* two outputs for one input, so we tuck the information in a
* specific array. Second if they don't have qualifiers, the
* default value has to be picked from the global shade mode.
+ *
+ * Of course, if we don't have a fragment shader in the first
+ * place, defaults should be used.
*/
/* First pick up the interpolation mode for
@@ -595,10 +598,12 @@ clip_init_state( struct draw_stage *stage )
indexed_interp[0] = indexed_interp[1] = stage->draw->rasterizer->flatshade ?
TGSI_INTERPOLATE_CONSTANT : TGSI_INTERPOLATE_PERSPECTIVE;
- for (i = 0; i < fs->info.num_inputs; i++) {
- if (fs->info.input_semantic_name[i] == TGSI_SEMANTIC_COLOR) {
- if (fs->info.input_interpolate[i] != TGSI_INTERPOLATE_COLOR)
- indexed_interp[fs->info.input_semantic_index[i]] = fs->info.input_interpolate[i];
+ if (fs) {
+ for (i = 0; i < fs->info.num_inputs; i++) {
+ if (fs->info.input_semantic_name[i] == TGSI_SEMANTIC_COLOR) {
+ if (fs->info.input_interpolate[i] != TGSI_INTERPOLATE_COLOR)
+ indexed_interp[fs->info.input_semantic_index[i]] = fs->info.input_interpolate[i];
+ }
}
}
@@ -627,12 +632,14 @@ clip_init_state( struct draw_stage *stage )
*/
uint j;
interp = TGSI_INTERPOLATE_PERSPECTIVE;
- for (j = 0; j < fs->info.num_inputs; j++) {
- if (vs->info.output_semantic_name[i] == fs->info.input_semantic_name[j] &&
- vs->info.output_semantic_index[i] == fs->info.input_semantic_index[j]) {
- interp = fs->info.input_interpolate[j];
- break;
- }
+ if (fs) {
+ for (j = 0; j < fs->info.num_inputs; j++) {
+ if (vs->info.output_semantic_name[i] == fs->info.input_semantic_name[j] &&
+ vs->info.output_semantic_index[i] == fs->info.input_semantic_index[j]) {
+ interp = fs->info.input_interpolate[j];
+ break;
+ }
+ }
}
}
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