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authorBrian Paul <[email protected]>2010-09-20 13:26:27 -0600
committerBrian Paul <[email protected]>2010-09-20 13:26:27 -0600
commitb7a5eac1f3723a369885bad369a04c456bdf1565 (patch)
treec3b1f75725a6e9062a63f8a70928755ad7feeefc /src/gallium/drivers
parent924c18da95bbc62492f8e54bd8273a4981a919dc (diff)
llvmpipe: clean-up, comments in setup_point_coefficient()
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_setup_point.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_point.c b/src/gallium/drivers/llvmpipe/lp_setup_point.c
index 5521cbbe876..fb4fb2c436b 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_point.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_point.c
@@ -152,6 +152,7 @@ setup_point_coefficients( struct lp_setup_context *setup,
struct lp_rast_triangle *point,
const struct point_info *info)
{
+ const struct lp_fragment_shader *shader = setup->fs.current.variant->shader;
unsigned fragcoord_usage_mask = TGSI_WRITEMASK_XYZ;
unsigned slot;
@@ -172,12 +173,16 @@ setup_point_coefficients( struct lp_setup_context *setup,
fragcoord_usage_mask |= usage_mask;
break;
+ case LP_INTERP_LINEAR:
+ /* Sprite tex coords may use linear interpolation someday */
+ /* fall-through */
+
case LP_INTERP_PERSPECTIVE:
- /* For point sprite textures */
- if (setup->fs.current.variant->shader->info.input_semantic_name[slot]
- == TGSI_SEMANTIC_GENERIC)
- {
- int index = setup->fs.current.variant->shader->info.input_semantic_index[slot];
+ /* check if the sprite coord flag is set for this attribute.
+ * If so, set it up so it up so x any y vary from 0 to 1.
+ */
+ if (shader->info.input_semantic_name[slot] == TGSI_SEMANTIC_GENERIC) {
+ const int index = shader->info.input_semantic_index[slot];
if (setup->sprite & (1 << index)) {
for (i = 0; i < NUM_CHANNELS; i++)