Path: blob/master/drivers/metal/rendering_shader_container_metal.mm
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/**************************************************************************/
/* rendering_shader_container_metal.mm */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 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 "rendering_shader_container_metal.h"
#include "servers/rendering/rendering_device.h"
#import "core/io/marshalls.h"
#import <Metal/Metal.h>
#import <spirv.hpp>
#import <spirv_msl.hpp>
#import <spirv_parser.hpp>
Mutex MetalDeviceProfile::profiles_lock;
HashMap<uint32_t, MetalDeviceProfile> MetalDeviceProfile::profiles;
const MetalDeviceProfile *MetalDeviceProfile::get_profile(MetalDeviceProfile::Platform p_platform, MetalDeviceProfile::GPU p_gpu) {
DEV_ASSERT(p_platform == Platform::macOS || p_platform == Platform::iOS);
MutexLock lock(profiles_lock);
uint32_t key = (uint32_t)p_platform << 16 | (uint32_t)p_gpu;
if (MetalDeviceProfile *profile = profiles.getptr(key)) {
return profile;
}
MetalDeviceProfile res;
res.platform = p_platform;
res.gpu = p_gpu;
if (p_platform == Platform::macOS) {
res.features.mslVersionMajor = 3;
res.features.mslVersionMinor = 2;
res.features.argument_buffers_tier = ArgumentBuffersTier::Tier2;
res.features.simdPermute = true;
} else if (p_platform == Platform::iOS) {
switch (p_gpu) {
case GPU::Apple1:
case GPU::Apple2:
case GPU::Apple3:
case GPU::Apple4:
case GPU::Apple5: {
res.features.simdPermute = false;
res.features.argument_buffers_tier = ArgumentBuffersTier::Tier1;
} break;
case GPU::Apple6:
case GPU::Apple7:
case GPU::Apple8:
case GPU::Apple9: {
res.features.argument_buffers_tier = ArgumentBuffersTier::Tier2;
res.features.simdPermute = true;
} break;
}
res.features.mslVersionMajor = 3;
res.features.mslVersionMinor = 1;
}
return &profiles.insert(key, res)->value;
}
Error RenderingShaderContainerMetal::compile_metal_source(const char *p_source, const StageData &p_stage_data, Vector<uint8_t> &r_binary_data) {
String name(shader_name.ptr());
if (name.contains_char(':')) {
name = name.replace_char(':', '_');
}
Error r_error;
Ref<FileAccess> source_file = FileAccess::create_temp(FileAccess::ModeFlags::READ_WRITE,
name + "_" + itos(p_stage_data.hash.short_sha()),
"metal", false, &r_error);
ERR_FAIL_COND_V_MSG(r_error != OK, r_error, "Unable to create temporary source file.");
if (!source_file->store_buffer((const uint8_t *)p_source, strlen(p_source))) {
ERR_FAIL_V_MSG(ERR_CANT_CREATE, "Unable to write temporary source file");
}
source_file->flush();
Ref<FileAccess> result_file = FileAccess::create_temp(FileAccess::ModeFlags::READ_WRITE,
name + "_" + itos(p_stage_data.hash.short_sha()),
"metallib", false, &r_error);
ERR_FAIL_COND_V_MSG(r_error != OK, r_error, "Unable to create temporary target file");
String sdk;
switch (device_profile->platform) {
case MetalDeviceProfile::Platform::macOS:
sdk = "macosx";
break;
case MetalDeviceProfile::Platform::iOS:
sdk = "iphoneos";
break;
}
// Build the metallib binary.
{
List<String> args{ "-sdk", sdk, "metal", "-O3" };
if (p_stage_data.is_position_invariant) {
args.push_back("-fpreserve-invariance");
}
args.push_back("-fmetal-math-mode=fast");
args.push_back(source_file->get_path_absolute());
args.push_back("-o");
args.push_back(result_file->get_path_absolute());
String r_pipe;
int exit_code;
Error err = OS::get_singleton()->execute("/usr/bin/xcrun", args, &r_pipe, &exit_code, true);
if (!r_pipe.is_empty()) {
print_line(r_pipe);
}
if (err != OK) {
ERR_PRINT(vformat("Metal compiler returned error code: %d", err));
}
if (exit_code != 0) {
ERR_PRINT(vformat("Metal compiler exited with error code: %d", exit_code));
}
int len = result_file->get_length();
ERR_FAIL_COND_V_MSG(len == 0, ERR_CANT_CREATE, "Metal compiler created empty library");
}
// Strip the source from the binary.
{
List<String> args{ "-sdk", sdk, "metal-dsymutil", "--remove-source", result_file->get_path_absolute() };
String r_pipe;
int exit_code;
Error err = OS::get_singleton()->execute("/usr/bin/xcrun", args, &r_pipe, &exit_code, true);
if (!r_pipe.is_empty()) {
print_line(r_pipe);
}
if (err != OK) {
ERR_PRINT(vformat("metal-dsymutil tool returned error code: %d", err));
}
if (exit_code != 0) {
ERR_PRINT(vformat("metal-dsymutil Compiler exited with error code: %d", exit_code));
}
int len = result_file->get_length();
ERR_FAIL_COND_V_MSG(len == 0, ERR_CANT_CREATE, "metal-dsymutil tool created empty library");
}
r_binary_data = result_file->get_buffer(result_file->get_length());
return OK;
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunguarded-availability"
bool RenderingShaderContainerMetal::_set_code_from_spirv(const Vector<RenderingDeviceCommons::ShaderStageSPIRVData> &p_spirv) {
using namespace spirv_cross;
using spirv_cross::CompilerMSL;
using spirv_cross::Resource;
// initialize Metal-specific reflection data
shaders.resize(p_spirv.size());
mtl_shaders.resize(p_spirv.size());
mtl_reflection_binding_set_uniforms_data.resize(reflection_binding_set_uniforms_data.size());
mtl_reflection_specialization_data.resize(reflection_specialization_data.size());
mtl_reflection_data.set_needs_view_mask_buffer(reflection_data.has_multiview);
// set_indexes will contain the starting offsets of each descriptor set in the binding set uniforms data
// including the last one, which is the size of reflection_binding_set_uniforms_count.
LocalVector<uint32_t> set_indexes;
uint32_t set_indexes_size = reflection_binding_set_uniforms_count.size() + 1;
{
// calculate the starting offsets of each descriptor set in the binding set uniforms data
uint32_t size = reflection_binding_set_uniforms_count.size();
set_indexes.resize(set_indexes_size);
uint32_t offset = 0;
for (uint32_t i = 0; i < size; i++) {
set_indexes[i] = offset;
offset += reflection_binding_set_uniforms_count.get(i);
}
set_indexes[set_indexes_size - 1] = offset;
}
CompilerMSL::Options msl_options{};
// MAJOR * 10000 + MINOR * 100
uint32_t msl_version = CompilerMSL::Options::make_msl_version(device_profile->features.mslVersionMajor, device_profile->features.mslVersionMinor);
msl_options.set_msl_version(device_profile->features.mslVersionMajor, device_profile->features.mslVersionMinor);
mtl_reflection_data.msl_version = msl_options.msl_version;
msl_options.platform = device_profile->platform == MetalDeviceProfile::Platform::macOS ? CompilerMSL::Options::macOS : CompilerMSL::Options::iOS;
if (device_profile->platform == MetalDeviceProfile::Platform::iOS) {
msl_options.ios_use_simdgroup_functions = device_profile->features.simdPermute;
msl_options.ios_support_base_vertex_instance = true;
}
bool disable_argument_buffers = false;
if (String v = OS::get_singleton()->get_environment("GODOT_MTL_DISABLE_ARGUMENT_BUFFERS"); v == "1") {
disable_argument_buffers = true;
}
if (device_profile->features.argument_buffers_tier >= MetalDeviceProfile::ArgumentBuffersTier::Tier2 && !disable_argument_buffers) {
msl_options.argument_buffers_tier = CompilerMSL::Options::ArgumentBuffersTier::Tier2;
msl_options.argument_buffers = true;
mtl_reflection_data.set_uses_argument_buffers(true);
} else {
msl_options.argument_buffers_tier = CompilerMSL::Options::ArgumentBuffersTier::Tier1;
// Tier 1 argument buffers don't support writable textures, so we disable them completely.
msl_options.argument_buffers = false;
mtl_reflection_data.set_uses_argument_buffers(false);
}
msl_options.force_active_argument_buffer_resources = true;
// We can't use this, as we have to add the descriptor sets via compiler.add_msl_resource_binding.
// msl_options.pad_argument_buffer_resources = true;
msl_options.texture_buffer_native = true; // Enable texture buffer support.
msl_options.use_framebuffer_fetch_subpasses = false;
msl_options.pad_fragment_output_components = true;
msl_options.r32ui_alignment_constant_id = R32UI_ALIGNMENT_CONSTANT_ID;
msl_options.agx_manual_cube_grad_fixup = true;
if (reflection_data.has_multiview) {
msl_options.multiview = true;
msl_options.multiview_layered_rendering = true;
msl_options.view_mask_buffer_index = VIEW_MASK_BUFFER_INDEX;
}
if (msl_version >= CompilerMSL::Options::make_msl_version(3, 2)) {
// All 3.2+ versions support device coherence, so we can disable texture fences.
msl_options.readwrite_texture_fences = false;
}
CompilerGLSL::Options options{};
options.vertex.flip_vert_y = true;
#if DEV_ENABLED
options.emit_line_directives = true;
#endif
for (uint32_t i = 0; i < p_spirv.size(); i++) {
StageData &stage_data = mtl_shaders.write[i];
RD::ShaderStageSPIRVData const &v = p_spirv[i];
RD::ShaderStage stage = v.shader_stage;
char const *stage_name = RD::SHADER_STAGE_NAMES[stage];
uint32_t const *const ir = reinterpret_cast<uint32_t const *const>(v.spirv.ptr());
size_t word_count = v.spirv.size() / sizeof(uint32_t);
Parser parser(ir, word_count);
try {
parser.parse();
} catch (CompilerError &e) {
ERR_FAIL_V_MSG(false, "Failed to parse IR at stage " + String(RD::SHADER_STAGE_NAMES[stage]) + ": " + e.what());
}
CompilerMSL compiler(std::move(parser.get_parsed_ir()));
compiler.set_msl_options(msl_options);
compiler.set_common_options(options);
std::unordered_set<VariableID> active = compiler.get_active_interface_variables();
ShaderResources resources = compiler.get_shader_resources();
std::string source;
try {
source = compiler.compile();
} catch (CompilerError &e) {
ERR_FAIL_V_MSG(false, "Failed to compile stage " + String(RD::SHADER_STAGE_NAMES[stage]) + ": " + e.what());
}
ERR_FAIL_COND_V_MSG(compiler.get_entry_points_and_stages().size() != 1, false, "Expected a single entry point and stage.");
SmallVector<EntryPoint> entry_pts_stages = compiler.get_entry_points_and_stages();
EntryPoint &entry_point_stage = entry_pts_stages.front();
SPIREntryPoint &entry_point = compiler.get_entry_point(entry_point_stage.name, entry_point_stage.execution_model);
// Process specialization constants.
if (!compiler.get_specialization_constants().empty()) {
uint32_t size = reflection_specialization_data.size();
for (SpecializationConstant const &constant : compiler.get_specialization_constants()) {
uint32_t j = 0;
while (j < size) {
const ReflectionSpecializationData &res = reflection_specialization_data.ptr()[j];
if (res.constant_id == constant.constant_id) {
mtl_reflection_specialization_data.ptrw()[j].used_stages |= 1 << stage;
// emulate labeled for loop and continue
goto outer_continue;
}
++j;
}
if (j == size) {
WARN_PRINT(String(stage_name) + ": unable to find constant_id: " + itos(constant.constant_id));
}
outer_continue:;
}
}
// Process bindings.
uint32_t uniform_sets_size = reflection_binding_set_uniforms_count.size();
using BT = SPIRType::BaseType;
// Always clearer than a boolean.
enum class Writable {
No,
Maybe,
};
// Returns a std::optional containing the value of the
// decoration, if it exists.
auto get_decoration = [&compiler](spirv_cross::ID id, spv::Decoration decoration) {
uint32_t res = -1;
if (compiler.has_decoration(id, decoration)) {
res = compiler.get_decoration(id, decoration);
}
return res;
};
auto descriptor_bindings = [&compiler, &active, this, &set_indexes, uniform_sets_size, stage, &get_decoration](SmallVector<Resource> &p_resources, Writable p_writable) {
for (Resource const &res : p_resources) {
uint32_t dset = get_decoration(res.id, spv::DecorationDescriptorSet);
uint32_t dbin = get_decoration(res.id, spv::DecorationBinding);
UniformData *found = nullptr;
if (dset != (uint32_t)-1 && dbin != (uint32_t)-1 && dset < uniform_sets_size) {
uint32_t begin = set_indexes[dset];
uint32_t end = set_indexes[dset + 1];
for (uint32_t j = begin; j < end; j++) {
const ReflectionBindingData &ref_bind = reflection_binding_set_uniforms_data[j];
if (dbin == ref_bind.binding) {
found = &mtl_reflection_binding_set_uniforms_data.write[j];
break;
}
}
}
ERR_FAIL_NULL_V_MSG(found, ERR_CANT_CREATE, "UniformData not found");
bool is_active = active.find(res.id) != active.end();
if (is_active) {
found->active_stages |= 1 << stage;
}
BindingInfoData &primary = found->get_binding_for_stage(stage);
SPIRType const &a_type = compiler.get_type(res.type_id);
BT basetype = a_type.basetype;
switch (basetype) {
case BT::Struct: {
primary.data_type = MTLDataTypePointer;
} break;
case BT::Image:
case BT::SampledImage: {
primary.data_type = MTLDataTypeTexture;
} break;
case BT::Sampler: {
primary.data_type = MTLDataTypeSampler;
primary.array_length = 1;
for (uint32_t const &a : a_type.array) {
primary.array_length *= a;
}
} break;
default: {
ERR_FAIL_V_MSG(ERR_CANT_CREATE, "Unexpected BaseType");
} break;
}
// Find array length of image.
if (basetype == BT::Image || basetype == BT::SampledImage) {
primary.array_length = 1;
for (uint32_t const &a : a_type.array) {
primary.array_length *= a;
}
primary.is_multisampled = a_type.image.ms;
SPIRType::ImageType const &image = a_type.image;
primary.image_format = image.format;
switch (image.dim) {
case spv::Dim1D: {
if (image.arrayed) {
primary.texture_type = MTLTextureType1DArray;
} else {
primary.texture_type = MTLTextureType1D;
}
} break;
case spv::DimSubpassData: {
[[fallthrough]];
}
case spv::Dim2D: {
if (image.arrayed && image.ms) {
primary.texture_type = MTLTextureType2DMultisampleArray;
} else if (image.arrayed) {
primary.texture_type = MTLTextureType2DArray;
} else if (image.ms) {
primary.texture_type = MTLTextureType2DMultisample;
} else {
primary.texture_type = MTLTextureType2D;
}
} break;
case spv::Dim3D: {
primary.texture_type = MTLTextureType3D;
} break;
case spv::DimCube: {
if (image.arrayed) {
primary.texture_type = MTLTextureTypeCube;
}
} break;
case spv::DimRect: {
} break;
case spv::DimBuffer: {
// VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER
primary.texture_type = MTLTextureTypeTextureBuffer;
} break;
case spv::DimTileImageDataEXT: {
// Godot does not use this extension.
// See: https://registry.khronos.org/vulkan/specs/latest/man/html/VK_EXT_shader_tile_image.html
} break;
case spv::DimMax: {
// Add all enumerations to silence the compiler warning
// and generate future warnings, should a new one be added.
} break;
}
}
// Update writable.
if (p_writable == Writable::Maybe) {
if (basetype == BT::Struct) {
Bitset flags = compiler.get_buffer_block_flags(res.id);
if (!flags.get(spv::DecorationNonWritable)) {
if (flags.get(spv::DecorationNonReadable)) {
primary.access = MTLBindingAccessWriteOnly;
} else {
primary.access = MTLBindingAccessReadWrite;
}
}
} else if (basetype == BT::Image) {
switch (a_type.image.access) {
case spv::AccessQualifierWriteOnly:
primary.access = MTLBindingAccessWriteOnly;
break;
case spv::AccessQualifierReadWrite:
primary.access = MTLBindingAccessReadWrite;
break;
case spv::AccessQualifierReadOnly:
break;
case spv::AccessQualifierMax:
[[fallthrough]];
default:
if (!compiler.has_decoration(res.id, spv::DecorationNonWritable)) {
if (compiler.has_decoration(res.id, spv::DecorationNonReadable)) {
primary.access = MTLBindingAccessWriteOnly;
} else {
primary.access = MTLBindingAccessReadWrite;
}
}
break;
}
}
}
switch (primary.access) {
case MTLBindingAccessReadOnly:
primary.usage = MTLResourceUsageRead;
break;
case MTLBindingAccessWriteOnly:
primary.usage = MTLResourceUsageWrite;
break;
case MTLBindingAccessReadWrite:
primary.usage = MTLResourceUsageRead | MTLResourceUsageWrite;
break;
}
primary.index = compiler.get_automatic_msl_resource_binding(res.id);
// A sampled image contains two bindings, the primary
// is to the image, and the secondary is to the associated sampler.
if (basetype == BT::SampledImage) {
uint32_t binding = compiler.get_automatic_msl_resource_binding_secondary(res.id);
if (binding != (uint32_t)-1) {
BindingInfoData &secondary = found->get_secondary_binding_for_stage(stage);
secondary.data_type = MTLDataTypeSampler;
secondary.index = binding;
secondary.access = MTLBindingAccessReadOnly;
}
}
// An image may have a secondary binding if it is used
// for atomic operations.
if (basetype == BT::Image) {
uint32_t binding = compiler.get_automatic_msl_resource_binding_secondary(res.id);
if (binding != (uint32_t)-1) {
BindingInfoData &secondary = found->get_secondary_binding_for_stage(stage);
secondary.data_type = MTLDataTypePointer;
secondary.index = binding;
secondary.access = MTLBindingAccessReadWrite;
}
}
}
return Error::OK;
};
if (!resources.uniform_buffers.empty()) {
Error err = descriptor_bindings(resources.uniform_buffers, Writable::No);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.storage_buffers.empty()) {
Error err = descriptor_bindings(resources.storage_buffers, Writable::Maybe);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.storage_images.empty()) {
Error err = descriptor_bindings(resources.storage_images, Writable::Maybe);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.sampled_images.empty()) {
Error err = descriptor_bindings(resources.sampled_images, Writable::No);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.separate_images.empty()) {
Error err = descriptor_bindings(resources.separate_images, Writable::No);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.separate_samplers.empty()) {
Error err = descriptor_bindings(resources.separate_samplers, Writable::No);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.subpass_inputs.empty()) {
Error err = descriptor_bindings(resources.subpass_inputs, Writable::No);
ERR_FAIL_COND_V(err != OK, false);
}
if (!resources.push_constant_buffers.empty()) {
for (Resource const &res : resources.push_constant_buffers) {
uint32_t binding = compiler.get_automatic_msl_resource_binding(res.id);
if (binding != (uint32_t)-1) {
stage_data.push_constant_binding = binding;
}
}
}
ERR_FAIL_COND_V_MSG(!resources.atomic_counters.empty(), false, "Atomic counters not supported");
ERR_FAIL_COND_V_MSG(!resources.acceleration_structures.empty(), false, "Acceleration structures not supported");
ERR_FAIL_COND_V_MSG(!resources.shader_record_buffers.empty(), false, "Shader record buffers not supported");
if (!resources.stage_inputs.empty()) {
for (Resource const &res : resources.stage_inputs) {
uint32_t binding = compiler.get_automatic_msl_resource_binding(res.id);
if (binding != (uint32_t)-1) {
stage_data.vertex_input_binding_mask |= 1 << binding;
}
}
}
stage_data.is_position_invariant = compiler.is_position_invariant();
stage_data.supports_fast_math = !entry_point.flags.get(spv::ExecutionModeSignedZeroInfNanPreserve);
stage_data.hash = SHA256Digest(source.c_str(), source.length());
stage_data.source_size = source.length();
::Vector<uint8_t> binary_data;
binary_data.resize(stage_data.source_size);
memcpy(binary_data.ptrw(), source.c_str(), stage_data.source_size);
if (export_mode) {
// Try to compile the Metal source code
::Vector<uint8_t> library_data;
Error compile_err = compile_metal_source(source.c_str(), stage_data, library_data);
if (compile_err == OK) {
stage_data.library_size = library_data.size();
binary_data.resize(stage_data.source_size + stage_data.library_size);
memcpy(binary_data.ptrw() + stage_data.source_size, library_data.ptr(), stage_data.library_size);
}
}
uint32_t binary_data_size = binary_data.size();
Shader &shader = shaders.write[i];
shader.shader_stage = stage;
shader.code_decompressed_size = binary_data_size;
shader.code_compressed_bytes.resize(binary_data_size);
uint32_t compressed_size = 0;
bool compressed = compress_code(binary_data.ptr(), binary_data_size, shader.code_compressed_bytes.ptrw(), &compressed_size, &shader.code_compression_flags);
ERR_FAIL_COND_V_MSG(!compressed, false, vformat("Failed to compress native code to native for SPIR-V #%d.", i));
shader.code_compressed_bytes.resize(compressed_size);
}
return true;
}
#pragma clang diagnostic pop
uint32_t RenderingShaderContainerMetal::_to_bytes_reflection_extra_data(uint8_t *p_bytes) const {
if (p_bytes != nullptr) {
*(HeaderData *)p_bytes = mtl_reflection_data;
}
return sizeof(HeaderData);
}
uint32_t RenderingShaderContainerMetal::_to_bytes_reflection_binding_uniform_extra_data(uint8_t *p_bytes, uint32_t p_index) const {
if (p_bytes != nullptr) {
*(UniformData *)p_bytes = mtl_reflection_binding_set_uniforms_data[p_index];
}
return sizeof(UniformData);
}
uint32_t RenderingShaderContainerMetal::_to_bytes_reflection_specialization_extra_data(uint8_t *p_bytes, uint32_t p_index) const {
if (p_bytes != nullptr) {
*(SpecializationData *)p_bytes = mtl_reflection_specialization_data[p_index];
}
return sizeof(SpecializationData);
}
uint32_t RenderingShaderContainerMetal::_to_bytes_shader_extra_data(uint8_t *p_bytes, uint32_t p_index) const {
if (p_bytes != nullptr) {
*(StageData *)p_bytes = mtl_shaders[p_index];
}
return sizeof(StageData);
}
uint32_t RenderingShaderContainerMetal::_from_bytes_reflection_extra_data(const uint8_t *p_bytes) {
mtl_reflection_data = *(HeaderData *)p_bytes;
return sizeof(HeaderData);
}
uint32_t RenderingShaderContainerMetal::_from_bytes_reflection_binding_uniform_extra_data_start(const uint8_t *p_bytes) {
mtl_reflection_binding_set_uniforms_data.resize(reflection_binding_set_uniforms_data.size());
return 0;
}
uint32_t RenderingShaderContainerMetal::_from_bytes_reflection_binding_uniform_extra_data(const uint8_t *p_bytes, uint32_t p_index) {
mtl_reflection_binding_set_uniforms_data.ptrw()[p_index] = *(UniformData *)p_bytes;
return sizeof(UniformData);
}
uint32_t RenderingShaderContainerMetal::_from_bytes_reflection_specialization_extra_data_start(const uint8_t *p_bytes) {
mtl_reflection_specialization_data.resize(reflection_specialization_data.size());
return 0;
}
uint32_t RenderingShaderContainerMetal::_from_bytes_reflection_specialization_extra_data(const uint8_t *p_bytes, uint32_t p_index) {
mtl_reflection_specialization_data.ptrw()[p_index] = *(SpecializationData *)p_bytes;
return sizeof(SpecializationData);
}
uint32_t RenderingShaderContainerMetal::_from_bytes_shader_extra_data_start(const uint8_t *p_bytes) {
mtl_shaders.resize(shaders.size());
return 0;
}
uint32_t RenderingShaderContainerMetal::_from_bytes_shader_extra_data(const uint8_t *p_bytes, uint32_t p_index) {
mtl_shaders.ptrw()[p_index] = *(StageData *)p_bytes;
return sizeof(StageData);
}
RenderingShaderContainerMetal::MetalShaderReflection RenderingShaderContainerMetal::get_metal_shader_reflection() const {
MetalShaderReflection res;
res.specialization_constants = mtl_reflection_specialization_data;
uint32_t uniform_set_count = reflection_binding_set_uniforms_count.size();
uint32_t start = 0;
res.uniform_sets.resize(uniform_set_count);
for (uint32_t i = 0; i < uniform_set_count; i++) {
Vector<UniformData> &set = res.uniform_sets.ptrw()[i];
uint32_t count = reflection_binding_set_uniforms_count.get(i);
set.resize(count);
memcpy(set.ptrw(), &mtl_reflection_binding_set_uniforms_data.ptr()[start], count * sizeof(UniformData));
start += count;
}
return res;
}
uint32_t RenderingShaderContainerMetal::_format() const {
return 0x42424242;
}
uint32_t RenderingShaderContainerMetal::_format_version() const {
return FORMAT_VERSION;
}
Ref<RenderingShaderContainer> RenderingShaderContainerFormatMetal::create_container() const {
Ref<RenderingShaderContainerMetal> result;
result.instantiate();
result->set_export_mode(export_mode);
result->set_device_profile(device_profile);
return result;
}
RenderingDeviceCommons::ShaderLanguageVersion RenderingShaderContainerFormatMetal::get_shader_language_version() const {
return SHADER_LANGUAGE_VULKAN_VERSION_1_1;
}
RenderingDeviceCommons::ShaderSpirvVersion RenderingShaderContainerFormatMetal::get_shader_spirv_version() const {
return SHADER_SPIRV_VERSION_1_6;
}
RenderingShaderContainerFormatMetal::RenderingShaderContainerFormatMetal(const MetalDeviceProfile *p_device_profile, bool p_export) :
export_mode(p_export), device_profile(p_device_profile) {
}