diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_exec.c | 54 | ||||
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 8 |
2 files changed, 46 insertions, 16 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 3c1530672ff..48d91af3e16 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -3359,6 +3359,46 @@ exec_up2h(struct tgsi_exec_machine *mach, } static void +micro_ucmp(union tgsi_exec_channel *dst, + const union tgsi_exec_channel *src0, + const union tgsi_exec_channel *src1, + const union tgsi_exec_channel *src2) +{ + dst->f[0] = src0->u[0] ? src1->f[0] : src2->f[0]; + dst->f[1] = src0->u[1] ? src1->f[1] : src2->f[1]; + dst->f[2] = src0->u[2] ? src1->f[2] : src2->f[2]; + dst->f[3] = src0->u[3] ? src1->f[3] : src2->f[3]; +} + +static void +exec_ucmp(struct tgsi_exec_machine *mach, + const struct tgsi_full_instruction *inst) +{ + unsigned int chan; + struct tgsi_exec_vector dst; + + for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) { + if (inst->Dst[0].Register.WriteMask & (1 << chan)) { + union tgsi_exec_channel src[3]; + + fetch_source(mach, &src[0], &inst->Src[0], chan, + TGSI_EXEC_DATA_UINT); + fetch_source(mach, &src[1], &inst->Src[1], chan, + TGSI_EXEC_DATA_FLOAT); + fetch_source(mach, &src[2], &inst->Src[2], chan, + TGSI_EXEC_DATA_FLOAT); + micro_ucmp(&dst.xyzw[chan], &src[0], &src[1], &src[2]); + } + } + for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) { + if (inst->Dst[0].Register.WriteMask & (1 << chan)) { + store_dest(mach, &dst.xyzw[chan], &inst->Dst[0], inst, chan, + TGSI_EXEC_DATA_FLOAT); + } + } +} + +static void exec_scs(struct tgsi_exec_machine *mach, const struct tgsi_full_instruction *inst) { @@ -4997,18 +5037,6 @@ micro_uarl(union tgsi_exec_channel *dst, dst->i[3] = src->u[3]; } -static void -micro_ucmp(union tgsi_exec_channel *dst, - const union tgsi_exec_channel *src0, - const union tgsi_exec_channel *src1, - const union tgsi_exec_channel *src2) -{ - dst->u[0] = src0->u[0] ? src1->u[0] : src2->u[0]; - dst->u[1] = src0->u[1] ? src1->u[1] : src2->u[1]; - dst->u[2] = src0->u[2] ? src1->u[2] : src2->u[2]; - dst->u[3] = src0->u[3] ? src1->u[3] : src2->u[3]; -} - /** * Signed bitfield extract (i.e. sign-extend the extracted bits) */ @@ -5911,7 +5939,7 @@ exec_instruction( break; case TGSI_OPCODE_UCMP: - exec_vector_trinary(mach, inst, micro_ucmp, TGSI_EXEC_DATA_UINT, TGSI_EXEC_DATA_UINT); + exec_ucmp(mach, inst); break; case TGSI_OPCODE_IABS: diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 18b42fba747..9976875c7bd 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -28,9 +28,11 @@ Modifiers TGSI supports modifiers on inputs (as well as saturate modifier on instructions). -For inputs which have a floating point type, both absolute value and negation -modifiers are supported (with absolute value being applied first). -TGSI_OPCODE_MOV is considered to have float input type for applying modifiers. +For inputs which have a floating point type, both absolute value and +negation modifiers are supported (with absolute value being applied +first). The only source of TGSI_OPCODE_MOV and the second and third +sources of TGSI_OPCODE_UCMP are considered to have float type for +applying modifiers. For inputs which have signed or unsigned type only the negate modifier is supported. |