From 03f60a335767957dca451ff013a170557e0244b6 Mon Sep 17 00:00:00 2001 From: Axel Davy Date: Sun, 12 Jun 2016 22:20:21 +0200 Subject: st/nine: Implement relative addressing for ps inputs To implement the feature we copy the ps inputs to a temp array. This is not optimal for performance, but it is the simplest solution. This is a feature that is very very rarely used. Signed-off-by: Axel Davy --- src/gallium/state_trackers/nine/nine_shader.c | 30 ++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) (limited to 'src/gallium/state_trackers/nine/nine_shader.c') diff --git a/src/gallium/state_trackers/nine/nine_shader.c b/src/gallium/state_trackers/nine/nine_shader.c index 4c58a6d4ec4..140226ec58b 100644 --- a/src/gallium/state_trackers/nine/nine_shader.c +++ b/src/gallium/state_trackers/nine/nine_shader.c @@ -477,6 +477,7 @@ struct shader_translator struct ureg_dst o[PIPE_MAX_SHADER_OUTPUTS]; struct ureg_dst oDepth; struct ureg_src v[PIPE_MAX_SHADER_INPUTS]; + struct ureg_src v_consecutive; /* copy in temp array of ps inputs for rel addressing */ struct ureg_src vPos; struct ureg_src vFace; struct ureg_src s; @@ -894,9 +895,32 @@ tx_src_param(struct shader_translator *tx, const struct sm1_src_param *param) TGSI_INTERPOLATE_LOC_CENTROID : 0, 0, 1); } else { - assert(!param->rel); /* TODO */ - assert(param->idx < ARRAY_SIZE(tx->regs.v)); - src = tx->regs.v[param->idx]; + if(param->rel) { + /* Copy all inputs (non consecutive) + * to temp array (consecutive). + * This is not good for performance. + * A better way would be to have inputs + * consecutive (would need implement alternative + * way to match vs outputs and ps inputs). + * However even with the better way, the temp array + * copy would need to be used if some inputs + * are not GENERIC or if they have different + * interpolation flag. */ + if (ureg_src_is_undef(tx->regs.v_consecutive)) { + int i; + tx->regs.v_consecutive = ureg_src(ureg_DECL_array_temporary(ureg, 10, 0)); + for (i = 0; i < 10; i++) { + if (!ureg_src_is_undef(tx->regs.v[i])) + ureg_MOV(ureg, ureg_dst_array_offset(ureg_dst(tx->regs.v_consecutive), i), tx->regs.v[i]); + else + ureg_MOV(ureg, ureg_dst_array_offset(ureg_dst(tx->regs.v_consecutive), i), ureg_imm4f(ureg, 0.0f, 0.0f, 0.0f, 1.0f)); + } + } + src = ureg_src_array_offset(tx->regs.v_consecutive, param->idx); + } else { + assert(param->idx < ARRAY_SIZE(tx->regs.v)); + src = tx->regs.v[param->idx]; + } } } break; -- cgit v1.2.3