mesa/src/microsoft/spirv_to_dxil/spirv_to_dxil.c

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/*
* Copyright © Microsoft Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "dxil_spirv_nir.h"
#include "spirv_to_dxil.h"
#include "nir_to_dxil.h"
#include "dxil_nir.h"
#include "shader_enums.h"
#include "spirv/nir_spirv.h"
#include "util/blob.h"
#include "git_sha1.h"
#include "vulkan/vulkan.h"
static_assert(DXIL_SPIRV_SHADER_NONE == (int)MESA_SHADER_NONE, "must match");
static_assert(DXIL_SPIRV_SHADER_VERTEX == (int)MESA_SHADER_VERTEX, "must match");
static_assert(DXIL_SPIRV_SHADER_TESS_CTRL == (int)MESA_SHADER_TESS_CTRL, "must match");
static_assert(DXIL_SPIRV_SHADER_TESS_EVAL == (int)MESA_SHADER_TESS_EVAL, "must match");
static_assert(DXIL_SPIRV_SHADER_GEOMETRY == (int)MESA_SHADER_GEOMETRY, "must match");
static_assert(DXIL_SPIRV_SHADER_FRAGMENT == (int)MESA_SHADER_FRAGMENT, "must match");
static_assert(DXIL_SPIRV_SHADER_COMPUTE == (int)MESA_SHADER_COMPUTE, "must match");
static_assert(DXIL_SPIRV_SHADER_KERNEL == (int)MESA_SHADER_KERNEL, "must match");
/* Logic extracted from vk_spirv_to_nir() so we have the same preparation
* steps for both the vulkan driver and the lib used by the WebGPU
* implementation.
* Maybe we should move those steps out of vk_spirv_to_nir() and make
* them vk agnosting (right, the only vk specific thing is the vk_device
* object that's used for the debug callback passed to spirv_to_nir()).
*/
static void
spirv_to_dxil_nir_prep(nir_shader *nir)
{
/* We have to lower away local constant initializers right before we
* inline functions. That way they get properly initialized at the top
* of the function and not at the top of its caller.
*/
NIR_PASS_V(nir, nir_lower_variable_initializers, nir_var_function_temp);
NIR_PASS_V(nir, nir_lower_returns);
NIR_PASS_V(nir, nir_inline_functions);
NIR_PASS_V(nir, nir_copy_prop);
NIR_PASS_V(nir, nir_opt_deref);
/* Pick off the single entrypoint that we want */
foreach_list_typed_safe(nir_function, func, node, &nir->functions) {
if (!func->is_entrypoint)
exec_node_remove(&func->node);
}
assert(exec_list_length(&nir->functions) == 1);
/* Now that we've deleted all but the main function, we can go ahead and
* lower the rest of the constant initializers. We do this here so that
* nir_remove_dead_variables and split_per_member_structs below see the
* corresponding stores.
*/
NIR_PASS_V(nir, nir_lower_variable_initializers, ~0);
/* Split member structs. We do this before lower_io_to_temporaries so that
* it doesn't lower system values to temporaries by accident.
*/
NIR_PASS_V(nir, nir_split_var_copies);
NIR_PASS_V(nir, nir_split_per_member_structs);
NIR_PASS_V(nir, nir_remove_dead_variables,
nir_var_shader_in | nir_var_shader_out | nir_var_system_value |
nir_var_shader_call_data | nir_var_ray_hit_attrib,
NULL);
NIR_PASS_V(nir, nir_propagate_invariant, false);
}
bool
spirv_to_dxil(const uint32_t *words, size_t word_count,
struct dxil_spirv_specialization *specializations,
unsigned int num_specializations, dxil_spirv_shader_stage stage,
const char *entry_point_name,
const struct dxil_spirv_debug_options *dgb_opts,
const struct dxil_spirv_runtime_conf *conf,
struct dxil_spirv_object *out_dxil)
{
if (stage == DXIL_SPIRV_SHADER_NONE || stage == DXIL_SPIRV_SHADER_KERNEL)
return false;
struct spirv_to_nir_options spirv_opts = {
.caps = {
.draw_parameters = true,
},
.ubo_addr_format = nir_address_format_32bit_index_offset,
.ssbo_addr_format = nir_address_format_32bit_index_offset,
.shared_addr_format = nir_address_format_32bit_offset_as_64bit,
// use_deref_buffer_array_length + nir_lower_explicit_io force
// get_ssbo_size to take in the return from load_vulkan_descriptor
// instead of vulkan_resource_index. This makes it much easier to
// get the DXIL handle for the SSBO.
.use_deref_buffer_array_length = true
};
glsl_type_singleton_init_or_ref();
struct nir_shader_compiler_options nir_options = *dxil_get_nir_compiler_options();
// We will manually handle base_vertex when vertex_id and instance_id have
// have been already converted to zero-base.
nir_options.lower_base_vertex = !conf->zero_based_vertex_instance_id;
nir_shader *nir = spirv_to_nir(
words, word_count, (struct nir_spirv_specialization *)specializations,
num_specializations, (gl_shader_stage)stage, entry_point_name,
&spirv_opts, &nir_options);
if (!nir) {
glsl_type_singleton_decref();
return false;
}
nir_validate_shader(nir,
"Validate before feeding NIR to the DXIL compiler");
spirv_to_dxil_nir_prep(nir);
bool requires_runtime_data;
dxil_spirv_nir_passes(nir, conf, &requires_runtime_data);
if (dgb_opts->dump_nir)
nir_print_shader(nir, stderr);
struct nir_to_dxil_options opts = {
.environment = DXIL_ENVIRONMENT_VULKAN,
.shader_model_max = SHADER_MODEL_6_2,
.validator_version_max = DXIL_VALIDATOR_1_4,
};
struct blob dxil_blob;
if (!nir_to_dxil(nir, &opts, &dxil_blob)) {
if (dxil_blob.allocated)
blob_finish(&dxil_blob);
ralloc_free(nir);
glsl_type_singleton_decref();
return false;
}
ralloc_free(nir);
out_dxil->metadata.requires_runtime_data = requires_runtime_data;
blob_finish_get_buffer(&dxil_blob, &out_dxil->binary.buffer,
&out_dxil->binary.size);
glsl_type_singleton_decref();
return true;
}
void
spirv_to_dxil_free(struct dxil_spirv_object *dxil)
{
free(dxil->binary.buffer);
}
uint64_t
spirv_to_dxil_get_version()
{
const char sha1[] = MESA_GIT_SHA1;
const char* dash = strchr(sha1, '-');
if (dash) {
return strtoull(dash + 1, NULL, 16);
}
return 0;
}