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authorAxel Davy <[email protected]>2016-03-12 12:24:51 +0100
committerAxel Davy <[email protected]>2016-05-18 23:37:14 +0200
commitca7c78a88ecc828a1b08dc18667d2a70d9d0e09d (patch)
tree6efd9cd4bb349ce0296205435b822eff10197704 /src/gallium/state_trackers
parentb8d95d40872dafbd372c071455d26ab078cdd170 (diff)
st/nine: Fix output shift calculation
We were getting it wrong for negative values. Signed-off-by: Axel Davy <[email protected]>
Diffstat (limited to 'src/gallium/state_trackers')
-rw-r--r--src/gallium/state_trackers/nine/nine_shader.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gallium/state_trackers/nine/nine_shader.c b/src/gallium/state_trackers/nine/nine_shader.c
index 972245f4753..2e822ce80c9 100644
--- a/src/gallium/state_trackers/nine/nine_shader.c
+++ b/src/gallium/state_trackers/nine/nine_shader.c
@@ -3005,7 +3005,7 @@ sm1_parse_get_param(struct shader_translator *tx, DWORD *reg, DWORD *rel)
static void
sm1_parse_dst_param(struct sm1_dst_param *dst, DWORD tok)
{
- uint8_t shift;
+ int8_t shift;
dst->file =
(tok & D3DSP_REGTYPE_MASK) >> D3DSP_REGTYPE_SHIFT |
(tok & D3DSP_REGTYPE_MASK2) >> D3DSP_REGTYPE_SHIFT2;
@@ -3015,7 +3015,7 @@ sm1_parse_dst_param(struct sm1_dst_param *dst, DWORD tok)
dst->mask = (tok & NINED3DSP_WRITEMASK_MASK) >> NINED3DSP_WRITEMASK_SHIFT;
dst->mod = (tok & D3DSP_DSTMOD_MASK) >> D3DSP_DSTMOD_SHIFT;
shift = (tok & D3DSP_DSTSHIFT_MASK) >> D3DSP_DSTSHIFT_SHIFT;
- dst->shift = (shift & 0x8) ? -(shift & 0x7) : shift & 0x7;
+ dst->shift = (shift & 0x7) - (shift & 0x8);
}
static void