diff options
author | Rob Clark <[email protected]> | 2019-10-24 11:26:34 -0700 |
---|---|---|
committer | Rob Clark <[email protected]> | 2019-11-12 13:55:03 -0800 |
commit | 4af86bd0b933179b9f61c74d055ae8565c59276c (patch) | |
tree | 228abe53e765b51fbe0ba1b7727c5ddee38bb591 | |
parent | 089b1053961f788f7e0d24c70a684318c4105bd0 (diff) |
freedreno/ir3: remove half-precision output
This doesn't really work, we can't necessarily just change the outputs
to half-precision like this in anything but simple cases.
Keep the shader key entry around though, eventually with proper mediump
support we could use this with a nir pass to use lower precision frag
shader outputs when the render target format has <= 16b/component.
Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Kristian H. Kristensen <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
-rw-r--r-- | src/freedreno/ir3/ir3_compiler_nir.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/src/freedreno/ir3/ir3_compiler_nir.c b/src/freedreno/ir3/ir3_compiler_nir.c index 1bc89819dfb..daa073eb266 100644 --- a/src/freedreno/ir3/ir3_compiler_nir.c +++ b/src/freedreno/ir3/ir3_compiler_nir.c @@ -3282,36 +3282,6 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler, if (so->binning_pass && (ctx->compiler->gpu_id < 600)) fixup_binning_pass(ctx); - /* if we want half-precision outputs, mark the output registers - * as half: - */ - if (so->key.half_precision) { - for (i = 0; i < ir->noutputs; i++) { - struct ir3_instruction *out = ir->outputs[i]; - - if (!out) - continue; - - /* if frag shader writes z, that needs to be full precision: */ - if (so->outputs[i/4].slot == FRAG_RESULT_DEPTH) - continue; - - out->regs[0]->flags |= IR3_REG_HALF; - /* output could be a fanout (ie. texture fetch output) - * in which case we need to propagate the half-reg flag - * up to the definer so that RA sees it: - */ - if (out->opc == OPC_META_FO) { - out = out->regs[1]->instr; - out->regs[0]->flags |= IR3_REG_HALF; - } - - if (out->opc == OPC_MOV) { - out->cat1.dst_type = half_type(out->cat1.dst_type); - } - } - } - if (ir3_shader_debug & IR3_DBG_OPTMSGS) { printf("BEFORE CP:\n"); ir3_print(ir); |