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authorMichal Krol <michal@tungstengraphics.com>2008-08-18 17:09:20 +0200
committerMichal Krol <michal@tungstengraphics.com>2008-08-18 17:20:12 +0200
commit56c30bf17b9f57efdb93ae5d1b801677535a9651 (patch)
treeff8196e6703c69fd5de51f3a84d5d674c2c0a97e /src/gallium/auxiliary/tgsi
parent6aacca106b0619d87015aece1a0b1d6332910926 (diff)
tgsi: Saturate modifier obeys ExecMask.
Implement NVIDIA [-1;+1] saturate mode.
Diffstat (limited to 'src/gallium/auxiliary/tgsi')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 1217ee71a5..dfd22270c8 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -1263,13 +1263,27 @@ store_dest(
break;
case TGSI_SAT_ZERO_ONE:
- /* XXX need to obey ExecMask here */
- micro_max( dst, chan, &mach->Temps[TEMP_0_I].xyzw[TEMP_0_C] );
- micro_min( dst, dst, &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C] );
+ for (i = 0; i < QUAD_SIZE; i++)
+ if (execmask & (1 << i)) {
+ if (chan->f[i] < 0.0f)
+ dst->f[i] = 0.0f;
+ else if (chan->f[i] > 1.0f)
+ dst->f[i] = 1.0f;
+ else
+ dst->i[i] = chan->i[i];
+ }
break;
case TGSI_SAT_MINUS_PLUS_ONE:
- assert( 0 );
+ for (i = 0; i < QUAD_SIZE; i++)
+ if (execmask & (1 << i)) {
+ if (chan->f[i] < -1.0f)
+ dst->f[i] = -1.0f;
+ else if (chan->f[i] > 1.0f)
+ dst->f[i] = 1.0f;
+ else
+ dst->i[i] = chan->i[i];
+ }
break;
default: