diff options
| author | Nicolai Hähnle <[email protected]> | 2017-01-16 16:40:41 +0100 |
|---|---|---|
| committer | Nicolai Hähnle <[email protected]> | 2017-01-16 20:17:22 +0100 |
| commit | 6be4a404300e4896ef531a10e24c6b76698afe1a (patch) | |
| tree | 0a46e8ad9e353a9441bd04287afdfbcbbf66afbf /src | |
| parent | 5e94e5bb9bc30b575fdd3347bab7f170fb736e83 (diff) | |
tgsi: add DDIV instruction
Double-precision division, to allow more precision than a DRCP + DMUL
sequence.
Reviewed-by: Roland Scheidegger <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c | 2 | ||||
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_info.c | 2 | ||||
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 9 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_shader_tokens.h | 5 |
4 files changed, 17 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c index 91e959f3451..937170fec1f 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c @@ -1355,6 +1355,7 @@ lp_set_default_actions(struct lp_build_tgsi_context * bld_base) bld_base->op_actions[TGSI_OPCODE_DMAX].emit = fmax_emit; bld_base->op_actions[TGSI_OPCODE_DMIN].emit = fmin_emit; bld_base->op_actions[TGSI_OPCODE_DMUL].emit = mul_emit; + bld_base->op_actions[TGSI_OPCODE_DDIV].emit = fdiv_emit; bld_base->op_actions[TGSI_OPCODE_D2F].emit = d2f_emit; bld_base->op_actions[TGSI_OPCODE_D2I].emit = d2i_emit; @@ -2623,6 +2624,7 @@ lp_set_default_actions_cpu( bld_base->op_actions[TGSI_OPCODE_DSLT].emit = dslt_emit_cpu; bld_base->op_actions[TGSI_OPCODE_DSNE].emit = dsne_emit_cpu; + bld_base->op_actions[TGSI_OPCODE_DDIV].emit = div_emit_cpu; bld_base->op_actions[TGSI_OPCODE_DRSQ].emit = drecip_sqrt_emit_cpu; bld_base->op_actions[TGSI_OPCODE_DSQRT].emit = dsqrt_emit_cpu; diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c index a339ec281c7..3bec56119b8 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_info.c +++ b/src/gallium/auxiliary/tgsi/tgsi_info.c @@ -287,6 +287,7 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] = { 1, 2, 0, 0, 0, 0, 0, COMP, "U64DIV", TGSI_OPCODE_U64DIV }, { 1, 2, 0, 0, 0, 0, 0, COMP, "I64MOD", TGSI_OPCODE_I64MOD }, { 1, 2, 0, 0, 0, 0, 0, COMP, "U64MOD", TGSI_OPCODE_U64MOD }, + { 1, 2, 0, 0, 0, 0, 0, COMP, "DDIV", TGSI_OPCODE_DDIV }, }; const struct tgsi_opcode_info * @@ -417,6 +418,7 @@ tgsi_opcode_infer_type( uint opcode ) case TGSI_OPCODE_DNEG: case TGSI_OPCODE_DMUL: case TGSI_OPCODE_DMAX: + case TGSI_OPCODE_DDIV: case TGSI_OPCODE_DMIN: case TGSI_OPCODE_DRCP: case TGSI_OPCODE_DSQRT: diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index d2d30b41d00..3e2d0e9fac2 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2005,6 +2005,15 @@ Perform a * b + c with no intermediate rounding step. dst.zw = src0.zw \times src1.zw + src2.zw +.. opcode:: DDIV - Divide + +.. math:: + + dst.xy = \frac{src0.xy}{src1.xy} + + dst.zw = \frac{src0.zw}{src1.zw} + + .. opcode:: DRCP - Reciprocal .. math:: diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h index 3384035a711..a867d139144 100644 --- a/src/gallium/include/pipe/p_shader_tokens.h +++ b/src/gallium/include/pipe/p_shader_tokens.h @@ -601,7 +601,10 @@ struct tgsi_property_data { #define TGSI_OPCODE_U64DIV 245 #define TGSI_OPCODE_I64MOD 246 #define TGSI_OPCODE_U64MOD 247 -#define TGSI_OPCODE_LAST 248 + +#define TGSI_OPCODE_DDIV 248 + +#define TGSI_OPCODE_LAST 249 /** * Opcode is the operation code to execute. A given operation defines the |