Mesa (master): llvmpipe: clean-up, comments in setup_point_coefficient()
Brian Paul
brianp at kemper.freedesktop.org
Tue Sep 21 15:59:20 UTC 2010
Module: Mesa
Branch: master
Commit: b7a5eac1f3723a369885bad369a04c456bdf1565
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b7a5eac1f3723a369885bad369a04c456bdf1565
Author: Brian Paul <brianp at vmware.com>
Date: Mon Sep 20 13:26:27 2010 -0600
llvmpipe: clean-up, comments in setup_point_coefficient()
---
src/gallium/drivers/llvmpipe/lp_setup_point.c | 15 ++++++++++-----
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 5521cbb..fb4fb2c 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++)
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