mirror of
https://github.com/godotengine/godot
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adabd14d08
Enables support for enhanced barriers if available. Gets rid of the implementation of [CROSS_FAMILY_FALLBACK] in the D3D12 driver. The logic has been reimplemented at a higher level in RenderingDevice itself. This fallback is only used if the RenderingDeviceDriver reports the API traits and the capability of sharing texture formats correctly. Aliases created in this way can only be used for sampling: never for writing. In most cases, the formats that do not support sharing do not support unordered access/storage writes in the first place.
385 lines
17 KiB
C++
385 lines
17 KiB
C++
/**************************************************************************/
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/* rendering_device_driver.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "rendering_device_driver.h"
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#include "thirdparty/spirv-reflect/spirv_reflect.h"
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/****************/
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/**** SHADER ****/
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/****************/
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Error RenderingDeviceDriver::_reflect_spirv(VectorView<ShaderStageSPIRVData> p_spirv, ShaderReflection &r_reflection) {
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r_reflection = {};
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for (uint32_t i = 0; i < p_spirv.size(); i++) {
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ShaderStage stage = p_spirv[i].shader_stage;
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ShaderStage stage_flag = (ShaderStage)(1 << p_spirv[i].shader_stage);
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if (p_spirv[i].shader_stage == SHADER_STAGE_COMPUTE) {
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r_reflection.is_compute = true;
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ERR_FAIL_COND_V_MSG(p_spirv.size() != 1, FAILED,
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"Compute shaders can only receive one stage, dedicated to compute.");
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}
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ERR_FAIL_COND_V_MSG(r_reflection.stages.has_flag(stage_flag), FAILED,
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"Stage " + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + " submitted more than once.");
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{
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SpvReflectShaderModule module;
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const uint8_t *spirv = p_spirv[i].spirv.ptr();
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SpvReflectResult result = spvReflectCreateShaderModule(p_spirv[i].spirv.size(), spirv, &module);
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed parsing shader.");
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if (r_reflection.is_compute) {
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r_reflection.compute_local_size[0] = module.entry_points->local_size.x;
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r_reflection.compute_local_size[1] = module.entry_points->local_size.y;
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r_reflection.compute_local_size[2] = module.entry_points->local_size.z;
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}
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uint32_t binding_count = 0;
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result = spvReflectEnumerateDescriptorBindings(&module, &binding_count, nullptr);
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed enumerating descriptor bindings.");
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if (binding_count > 0) {
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// Parse bindings.
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Vector<SpvReflectDescriptorBinding *> bindings;
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bindings.resize(binding_count);
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result = spvReflectEnumerateDescriptorBindings(&module, &binding_count, bindings.ptrw());
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed getting descriptor bindings.");
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for (uint32_t j = 0; j < binding_count; j++) {
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const SpvReflectDescriptorBinding &binding = *bindings[j];
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ShaderUniform uniform;
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bool need_array_dimensions = false;
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bool need_block_size = false;
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bool may_be_writable = false;
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switch (binding.descriptor_type) {
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case SPV_REFLECT_DESCRIPTOR_TYPE_SAMPLER: {
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uniform.type = UNIFORM_TYPE_SAMPLER;
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need_array_dimensions = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER: {
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uniform.type = UNIFORM_TYPE_SAMPLER_WITH_TEXTURE;
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need_array_dimensions = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_SAMPLED_IMAGE: {
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uniform.type = UNIFORM_TYPE_TEXTURE;
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need_array_dimensions = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_STORAGE_IMAGE: {
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uniform.type = UNIFORM_TYPE_IMAGE;
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need_array_dimensions = true;
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may_be_writable = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER: {
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uniform.type = UNIFORM_TYPE_TEXTURE_BUFFER;
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need_array_dimensions = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER: {
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uniform.type = UNIFORM_TYPE_IMAGE_BUFFER;
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need_array_dimensions = true;
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may_be_writable = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_UNIFORM_BUFFER: {
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uniform.type = UNIFORM_TYPE_UNIFORM_BUFFER;
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need_block_size = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_STORAGE_BUFFER: {
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uniform.type = UNIFORM_TYPE_STORAGE_BUFFER;
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need_block_size = true;
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may_be_writable = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC: {
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ERR_PRINT("Dynamic uniform buffer not supported.");
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continue;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC: {
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ERR_PRINT("Dynamic storage buffer not supported.");
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continue;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_INPUT_ATTACHMENT: {
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uniform.type = UNIFORM_TYPE_INPUT_ATTACHMENT;
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need_array_dimensions = true;
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} break;
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case SPV_REFLECT_DESCRIPTOR_TYPE_ACCELERATION_STRUCTURE_KHR: {
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ERR_PRINT("Acceleration structure not supported.");
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continue;
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} break;
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}
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if (need_array_dimensions) {
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if (binding.array.dims_count == 0) {
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uniform.length = 1;
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} else {
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for (uint32_t k = 0; k < binding.array.dims_count; k++) {
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if (k == 0) {
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uniform.length = binding.array.dims[0];
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} else {
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uniform.length *= binding.array.dims[k];
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}
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}
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}
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} else if (need_block_size) {
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uniform.length = binding.block.size;
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} else {
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uniform.length = 0;
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}
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if (may_be_writable) {
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uniform.writable = !(binding.type_description->decoration_flags & SPV_REFLECT_DECORATION_NON_WRITABLE) && !(binding.block.decoration_flags & SPV_REFLECT_DECORATION_NON_WRITABLE);
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} else {
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uniform.writable = false;
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}
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uniform.binding = binding.binding;
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uint32_t set = binding.set;
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ERR_FAIL_COND_V_MSG(set >= MAX_UNIFORM_SETS, FAILED,
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"On shader stage '" + String(SHADER_STAGE_NAMES[stage]) + "', uniform '" + binding.name + "' uses a set (" + itos(set) + ") index larger than what is supported (" + itos(MAX_UNIFORM_SETS) + ").");
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if (set < (uint32_t)r_reflection.uniform_sets.size()) {
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// Check if this already exists.
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bool exists = false;
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for (int k = 0; k < r_reflection.uniform_sets[set].size(); k++) {
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if (r_reflection.uniform_sets[set][k].binding == uniform.binding) {
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// Already exists, verify that it's the same type.
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ERR_FAIL_COND_V_MSG(r_reflection.uniform_sets[set][k].type != uniform.type, FAILED,
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"On shader stage '" + String(SHADER_STAGE_NAMES[stage]) + "', uniform '" + binding.name + "' trying to reuse location for set=" + itos(set) + ", binding=" + itos(uniform.binding) + " with different uniform type.");
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// Also, verify that it's the same size.
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ERR_FAIL_COND_V_MSG(r_reflection.uniform_sets[set][k].length != uniform.length, FAILED,
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"On shader stage '" + String(SHADER_STAGE_NAMES[stage]) + "', uniform '" + binding.name + "' trying to reuse location for set=" + itos(set) + ", binding=" + itos(uniform.binding) + " with different uniform size.");
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// Also, verify that it has the same writability.
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ERR_FAIL_COND_V_MSG(r_reflection.uniform_sets[set][k].writable != uniform.writable, FAILED,
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"On shader stage '" + String(SHADER_STAGE_NAMES[stage]) + "', uniform '" + binding.name + "' trying to reuse location for set=" + itos(set) + ", binding=" + itos(uniform.binding) + " with different writability.");
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// Just append stage mask and return.
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r_reflection.uniform_sets.write[set].write[k].stages.set_flag(stage_flag);
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exists = true;
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break;
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}
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}
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if (exists) {
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continue; // Merged.
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}
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}
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uniform.stages.set_flag(stage_flag);
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if (set >= (uint32_t)r_reflection.uniform_sets.size()) {
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r_reflection.uniform_sets.resize(set + 1);
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}
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r_reflection.uniform_sets.write[set].push_back(uniform);
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}
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}
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{
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// Specialization constants.
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uint32_t sc_count = 0;
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result = spvReflectEnumerateSpecializationConstants(&module, &sc_count, nullptr);
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed enumerating specialization constants.");
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if (sc_count) {
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Vector<SpvReflectSpecializationConstant *> spec_constants;
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spec_constants.resize(sc_count);
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result = spvReflectEnumerateSpecializationConstants(&module, &sc_count, spec_constants.ptrw());
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed obtaining specialization constants.");
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for (uint32_t j = 0; j < sc_count; j++) {
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int32_t existing = -1;
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ShaderSpecializationConstant sconst;
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SpvReflectSpecializationConstant *spc = spec_constants[j];
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sconst.constant_id = spc->constant_id;
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sconst.int_value = 0; // Clear previous value JIC.
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switch (spc->constant_type) {
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case SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL: {
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sconst.type = PIPELINE_SPECIALIZATION_CONSTANT_TYPE_BOOL;
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sconst.bool_value = spc->default_value.int_bool_value != 0;
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} break;
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case SPV_REFLECT_SPECIALIZATION_CONSTANT_INT: {
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sconst.type = PIPELINE_SPECIALIZATION_CONSTANT_TYPE_INT;
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sconst.int_value = spc->default_value.int_bool_value;
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} break;
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case SPV_REFLECT_SPECIALIZATION_CONSTANT_FLOAT: {
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sconst.type = PIPELINE_SPECIALIZATION_CONSTANT_TYPE_FLOAT;
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sconst.float_value = spc->default_value.float_value;
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} break;
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}
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sconst.stages.set_flag(stage_flag);
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for (int k = 0; k < r_reflection.specialization_constants.size(); k++) {
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if (r_reflection.specialization_constants[k].constant_id == sconst.constant_id) {
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ERR_FAIL_COND_V_MSG(r_reflection.specialization_constants[k].type != sconst.type, FAILED, "More than one specialization constant used for id (" + itos(sconst.constant_id) + "), but their types differ.");
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ERR_FAIL_COND_V_MSG(r_reflection.specialization_constants[k].int_value != sconst.int_value, FAILED, "More than one specialization constant used for id (" + itos(sconst.constant_id) + "), but their default values differ.");
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existing = k;
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break;
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}
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}
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if (existing > 0) {
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r_reflection.specialization_constants.write[existing].stages.set_flag(stage_flag);
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} else {
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r_reflection.specialization_constants.push_back(sconst);
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}
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}
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r_reflection.specialization_constants.sort();
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}
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}
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if (stage == SHADER_STAGE_VERTEX) {
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uint32_t iv_count = 0;
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result = spvReflectEnumerateInputVariables(&module, &iv_count, nullptr);
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed enumerating input variables.");
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if (iv_count) {
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Vector<SpvReflectInterfaceVariable *> input_vars;
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input_vars.resize(iv_count);
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result = spvReflectEnumerateInputVariables(&module, &iv_count, input_vars.ptrw());
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed obtaining input variables.");
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for (uint32_t j = 0; j < iv_count; j++) {
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if (input_vars[j] && input_vars[j]->decoration_flags == 0) { // Regular input.
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r_reflection.vertex_input_mask |= (((uint64_t)1) << input_vars[j]->location);
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}
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}
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}
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}
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if (stage == SHADER_STAGE_FRAGMENT) {
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uint32_t ov_count = 0;
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result = spvReflectEnumerateOutputVariables(&module, &ov_count, nullptr);
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed enumerating output variables.");
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if (ov_count) {
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Vector<SpvReflectInterfaceVariable *> output_vars;
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output_vars.resize(ov_count);
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result = spvReflectEnumerateOutputVariables(&module, &ov_count, output_vars.ptrw());
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed obtaining output variables.");
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for (uint32_t j = 0; j < ov_count; j++) {
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const SpvReflectInterfaceVariable *refvar = output_vars[j];
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if (refvar != nullptr && refvar->built_in != SpvBuiltInFragDepth) {
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r_reflection.fragment_output_mask |= 1 << refvar->location;
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}
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}
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}
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}
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uint32_t pc_count = 0;
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result = spvReflectEnumeratePushConstantBlocks(&module, &pc_count, nullptr);
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed enumerating push constants.");
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if (pc_count) {
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ERR_FAIL_COND_V_MSG(pc_count > 1, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "': Only one push constant is supported, which should be the same across shader stages.");
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Vector<SpvReflectBlockVariable *> pconstants;
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pconstants.resize(pc_count);
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result = spvReflectEnumeratePushConstantBlocks(&module, &pc_count, pconstants.ptrw());
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ERR_FAIL_COND_V_MSG(result != SPV_REFLECT_RESULT_SUCCESS, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "' failed obtaining push constants.");
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#if 0
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if (pconstants[0] == nullptr) {
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Ref<FileAccess> f = FileAccess::open("res://popo.spv", FileAccess::WRITE);
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f->store_buffer((const uint8_t *)&SpirV[0], SpirV.size() * sizeof(uint32_t));
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}
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#endif
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ERR_FAIL_COND_V_MSG(r_reflection.push_constant_size && r_reflection.push_constant_size != pconstants[0]->size, FAILED,
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"Reflection of SPIR-V shader stage '" + String(SHADER_STAGE_NAMES[p_spirv[i].shader_stage]) + "': Push constant block must be the same across shader stages.");
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r_reflection.push_constant_size = pconstants[0]->size;
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r_reflection.push_constant_stages.set_flag(stage_flag);
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//print_line("Stage: " + String(SHADER_STAGE_NAMES[stage]) + " push constant of size=" + itos(push_constant.push_constant_size));
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}
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// Destroy the reflection data when no longer required.
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spvReflectDestroyShaderModule(&module);
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}
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r_reflection.stages.set_flag(stage_flag);
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}
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return OK;
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}
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/**************/
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/**** MISC ****/
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/**************/
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uint64_t RenderingDeviceDriver::api_trait_get(ApiTrait p_trait) {
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// Sensible canonical defaults.
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switch (p_trait) {
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case API_TRAIT_HONORS_PIPELINE_BARRIERS:
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return 1;
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case API_TRAIT_SHADER_CHANGE_INVALIDATION:
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return SHADER_CHANGE_INVALIDATION_ALL_BOUND_UNIFORM_SETS;
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case API_TRAIT_TEXTURE_TRANSFER_ALIGNMENT:
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return 1;
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case API_TRAIT_TEXTURE_DATA_ROW_PITCH_STEP:
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return 1;
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case API_TRAIT_SECONDARY_VIEWPORT_SCISSOR:
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return 1;
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case API_TRAIT_CLEARS_WITH_COPY_ENGINE:
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return true;
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default:
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ERR_FAIL_V(0);
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}
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}
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/******************/
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RenderingDeviceDriver::~RenderingDeviceDriver() {}
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