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freedreno/ir3: only unminify txf coords on a3xx

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Seems like a4xx gets this right.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2015-06-08 14:45:47 -04:00
parent 0f008082b1
commit 43048c7093
1 changed files with 9 additions and 1 deletions
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10
src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
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@ -109,6 +109,11 @@ struct ir3_compile {
*/
bool levels_add_one;
/* on a3xx, we need to scale up integer coords for isaml based
* on LoD:
*/
bool unminify_coords;
/* for looking up which system value is which */
unsigned sysval_semantics[8];
@ -225,10 +230,12 @@ compile_init(struct ir3_compiler *compiler,
/* need special handling for "flat" */
ctx->flat_bypass = true;
ctx->levels_add_one = false;
ctx->unminify_coords = false;
} else {
/* no special handling for "flat" */
ctx->flat_bypass = false;
ctx->levels_add_one = true;
ctx->unminify_coords = true;
}
ctx->compiler = compiler;
@ -1592,11 +1599,12 @@ emit_tex(struct ir3_compile *ctx, nir_tex_instr *tex)
tex_info(tex, &flags, &coords);
/* scale up integer coords for TXF based on the LOD */
if (opc == OPC_ISAML) {
if (ctx->unminify_coords && (opc == OPC_ISAML)) {
assert(has_lod);
for (i = 0; i < coords; i++)
coord[i] = ir3_SHL_B(b, coord[i], 0, lod, 0);
}
/*
* lay out the first argument in the proper order:
* - actual coordinates first