diff options
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_state.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 8396ef51210..ebca4a87fea 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -166,6 +166,36 @@ static unsigned cik_db_pipe_config(struct si_screen *sscreen, unsigned tile_mode } } +static unsigned si_map_swizzle(unsigned swizzle) +{ + switch (swizzle) { + case UTIL_FORMAT_SWIZZLE_Y: + return V_008F0C_SQ_SEL_Y; + case UTIL_FORMAT_SWIZZLE_Z: + return V_008F0C_SQ_SEL_Z; + case UTIL_FORMAT_SWIZZLE_W: + return V_008F0C_SQ_SEL_W; + case UTIL_FORMAT_SWIZZLE_0: + return V_008F0C_SQ_SEL_0; + case UTIL_FORMAT_SWIZZLE_1: + return V_008F0C_SQ_SEL_1; + default: /* UTIL_FORMAT_SWIZZLE_X */ + return V_008F0C_SQ_SEL_X; + } +} + +static uint32_t S_FIXED(float value, uint32_t frac_bits) +{ + return value * (1 << frac_bits); +} + +/* 12.4 fixed-point */ +static unsigned si_pack_float_12p4(float x) +{ + return x <= 0 ? 0 : + x >= 4096 ? 0xffff : x * 16; +} + /* * inferred framebuffer and blender state */ |