Mesa (master): radeonsi: support per-sample gl_FragCoord
Marek Olšák
mareko at kemper.freedesktop.org
Tue Nov 18 13:33:03 UTC 2014
Module: Mesa
Branch: master
Commit: da2dea384374c70098a3aa74f42fda6381556945
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=da2dea384374c70098a3aa74f42fda6381556945
Author: Marek Olšák <marek.olsak at amd.com>
Date: Mon Nov 17 20:49:11 2014 +0100
radeonsi: support per-sample gl_FragCoord
Cc: 10.4 <mesa-stable at lists.freedesktop.org>
Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
---
src/gallium/drivers/radeonsi/si_state_draw.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c
index d5b27e7..f108282 100644
--- a/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -248,20 +248,21 @@ static void si_shader_ps(struct si_shader *shader)
for (i = 0; i < info->num_inputs; i++) {
switch (info->input_semantic_name[i]) {
case TGSI_SEMANTIC_POSITION:
- if (info->input_interpolate_loc[i] ==
- TGSI_INTERPOLATE_LOC_CENTROID) {
- /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
- * Possible vaules:
- * 0 -> Position = pixel center (default)
- * 1 -> Position = pixel centroid
- * 2 -> Position = iterated sample number XXX:
- * What does this mean?
- */
+ /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
+ * Possible vaules:
+ * 0 -> Position = pixel center (default)
+ * 1 -> Position = pixel centroid
+ * 2 -> Position = at sample position
+ */
+ switch (info->input_interpolate_loc[i]) {
+ case TGSI_INTERPOLATE_LOC_CENTROID:
spi_baryc_cntl |= S_0286E0_POS_FLOAT_LOCATION(1);
+ break;
+ case TGSI_INTERPOLATE_LOC_SAMPLE:
+ spi_baryc_cntl |= S_0286E0_POS_FLOAT_LOCATION(2);
+ break;
}
- /* Fall through */
- case TGSI_SEMANTIC_FACE:
- continue;
+ break;
}
}
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