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radeonsi: add si_nir_load_input_tcs()

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V2: drop type param and just use ctx->i32

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Timothy Arceri 2017-12-05 12:56:12 +11:00
parent 234507b3cf
commit 8be0135082
1 changed files with 45 additions and 0 deletions
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45
src/gallium/drivers/radeonsi/si_shader.c
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@ -1208,6 +1208,50 @@ static LLVMValueRef fetch_input_tcs(
return lds_load(bld_base, tgsi2llvmtype(bld_base, type), swizzle, dw_addr);
}
static LLVMValueRef si_nir_load_input_tcs(struct ac_shader_abi *abi,
LLVMValueRef vertex_index,
LLVMValueRef param_index,
unsigned const_index,
unsigned location,
unsigned driver_location,
unsigned component,
unsigned num_components,
bool is_patch,
bool is_compact)
{
struct si_shader_context *ctx = si_shader_context_from_abi(abi);
struct tgsi_shader_info *info = &ctx->shader->selector->info;
struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
LLVMValueRef dw_addr, stride;
driver_location = driver_location / 4;
stride = get_tcs_in_vertex_dw_stride(ctx);
dw_addr = get_tcs_in_current_patch_offset(ctx);
if (param_index) {
/* Add the constant index to the indirect index */
param_index = LLVMBuildAdd(ctx->ac.builder, param_index,
LLVMConstInt(ctx->i32, const_index, 0), "");
} else {
param_index = LLVMConstInt(ctx->i32, const_index, 0);
}
dw_addr = get_dw_address_from_generic_indices(ctx, stride, dw_addr,
vertex_index, param_index,
driver_location,
info->input_semantic_name,
info->input_semantic_index,
is_patch);
LLVMValueRef value[4];
for (unsigned i = 0; i < num_components + component; i++) {
value[i] = lds_load(bld_base, ctx->i32, i, dw_addr);
}
return ac_build_varying_gather_values(&ctx->ac, value, num_components, component);
}
static LLVMValueRef fetch_output_tcs(
struct lp_build_tgsi_context *bld_base,
const struct tgsi_full_src_register *reg,
@ -5778,6 +5822,7 @@ static bool si_compile_tgsi_main(struct si_shader_context *ctx,
break;
case PIPE_SHADER_TESS_CTRL:
bld_base->emit_fetch_funcs[TGSI_FILE_INPUT] = fetch_input_tcs;
ctx->abi.load_tess_inputs = si_nir_load_input_tcs;
bld_base->emit_fetch_funcs[TGSI_FILE_OUTPUT] = fetch_output_tcs;
bld_base->emit_store = store_output_tcs;
bld_base->emit_epilogue = si_llvm_emit_tcs_epilogue;