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ir3: use rpt instructions for frag coord

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Signed-off-by: Job Noorman <jnoorman@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28341>
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Job Noorman 2024-08-15 08:46:36 +02:00 • committed by Marge Bot
parent 6e6b338f33
commit cf395d1437
1 changed files with 8 additions and 9 deletions
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17
src/freedreno/ir3/ir3_compiler_nir.c
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@ -2220,11 +2220,11 @@ get_frag_coord(struct ir3_context *ctx, nir_intrinsic_instr *intr)
{
if (!ctx->frag_coord) {
struct ir3_block *b = ir3_after_preamble(ctx->ir);
struct ir3_instruction *xyzw[4];
struct ir3_instruction_rpt xyzw;
struct ir3_instruction *hw_frag_coord;
hw_frag_coord = create_sysval_input(ctx, SYSTEM_VALUE_FRAG_COORD, 0xf);
ir3_split_dest(b, xyzw, hw_frag_coord, 0, 4);
ir3_split_dest(b, xyzw.rpts, hw_frag_coord, 0, 4);
/* for frag_coord.xy, we get unsigned values.. we need
* to subtract (integer) 8 and divide by 16 (right-
@ -2235,13 +2235,12 @@ get_frag_coord(struct ir3_context *ctx, nir_intrinsic_instr *intr)
* mov.u32f32 dst, tmp
*
*/
for (int i = 0; i < 2; i++) {
xyzw[i] = ir3_COV(b, xyzw[i], TYPE_U32, TYPE_F32);
xyzw[i] =
ir3_MUL_F(b, xyzw[i], 0, create_immed(b, fui(1.0 / 16.0)), 0);
}
ctx->frag_coord = ir3_create_collect(b, xyzw, 4);
struct ir3_instruction_rpt xy =
ir3_COV_rpt(b, 2, xyzw, TYPE_U32, TYPE_F32);
xy =
ir3_MUL_F_rpt(b, 2, xy, 0, create_immed_rpt(b, 2, fui(1.0 / 16.0)), 0);
cp_instrs(xyzw.rpts, xy.rpts, 2);
ctx->frag_coord = ir3_create_collect(b, xyzw.rpts, 4);
}
ctx->so->fragcoord_compmask |= nir_def_components_read(&intr->def);