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radeonsi: use TCS epilog for monolithic shaders

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For fixed function TCS, we keep the copying of VS outputs to TES inputs inside
the main function; the call to si_copy_tcs_inputs is moved accordingly.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-10-28 21:49:32 +02:00
parent 3f1be54e53
commit 858ac2228f
1 changed files with 21 additions and 1 deletions
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22
src/gallium/drivers/radeonsi/si_shader.c
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@ -75,6 +75,8 @@ static void si_build_vs_prolog_function(struct si_shader_context *ctx,
union si_shader_part_key *key);
static void si_build_vs_epilog_function(struct si_shader_context *ctx,
union si_shader_part_key *key);
static void si_build_tcs_epilog_function(struct si_shader_context *ctx,
union si_shader_part_key *key);
static void si_build_ps_prolog_function(struct si_shader_context *ctx,
union si_shader_part_key *key);
static void si_build_ps_epilog_function(struct si_shader_context *ctx,
@ -2483,6 +2485,10 @@ handle_semantic:
}
}
/**
* Forward all outputs from the vertex shader to the TES. This is only used
* for the fixed function TCS.
*/
static void si_copy_tcs_inputs(struct lp_build_tgsi_context *bld_base)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
@ -2637,6 +2643,8 @@ static void si_llvm_emit_tcs_epilogue(struct lp_build_tgsi_context *bld_base)
struct si_shader_context *ctx = si_shader_context(bld_base);
LLVMValueRef rel_patch_id, invocation_id, tf_lds_offset;
si_copy_tcs_inputs(bld_base);
rel_patch_id = get_rel_patch_id(ctx);
invocation_id = unpack_param(ctx, SI_PARAM_REL_IDS, 8, 5);
tf_lds_offset = get_tcs_out_current_patch_data_offset(ctx);
@ -2679,7 +2687,6 @@ static void si_llvm_emit_tcs_epilogue(struct lp_build_tgsi_context *bld_base)
return;
}
si_copy_tcs_inputs(bld_base);
si_write_tess_factors(bld_base, rel_patch_id, invocation_id, tf_lds_offset);
}
@ -7179,6 +7186,7 @@ int si_compile_tgsi_shader(struct si_screen *sscreen,
ctx.separate_prolog = !is_monolithic;
if (ctx.type == PIPE_SHADER_VERTEX ||
ctx.type == PIPE_SHADER_TESS_CTRL ||
ctx.type == PIPE_SHADER_TESS_EVAL ||
ctx.type == PIPE_SHADER_FRAGMENT) {
ctx.no_prolog = false;
@ -7224,6 +7232,18 @@ int si_compile_tgsi_shader(struct si_screen *sscreen,
si_build_wrapper_function(&ctx, parts, 1 + need_prolog + need_epilog,
need_prolog ? 1 : 0);
} else if (is_monolithic && ctx.type == PIPE_SHADER_TESS_CTRL) {
LLVMValueRef parts[2];
union si_shader_part_key epilog_key;
parts[0] = ctx.main_fn;
memset(&epilog_key, 0, sizeof(epilog_key));
epilog_key.tcs_epilog.states = shader->key.tcs.epilog;
si_build_tcs_epilog_function(&ctx, &epilog_key);
parts[1] = ctx.main_fn;
si_build_wrapper_function(&ctx, parts, 2, 0);
} else if (is_monolithic && ctx.type == PIPE_SHADER_TESS_EVAL &&
!shader->key.tes.as_es) {
LLVMValueRef parts[2];