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- /**************************************************************************/
- /* register_types.cpp */
- /**************************************************************************/
- /* 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 "register_types.h"
- #include "core/config/engine.h"
- #include "servers/rendering/rendering_device.h"
- #include <glslang/Public/ResourceLimits.h>
- #include <glslang/Public/ShaderLang.h>
- #include <glslang/SPIRV/GlslangToSpv.h>
- static Vector<uint8_t> _compile_shader_glsl(RenderingDevice::ShaderStage p_stage, const String &p_source_code, RenderingDevice::ShaderLanguage p_language, String *r_error, const RenderingDevice *p_render_device) {
- const RDD::Capabilities &capabilities = p_render_device->get_device_capabilities();
- Vector<uint8_t> ret;
- ERR_FAIL_COND_V(p_language == RenderingDevice::SHADER_LANGUAGE_HLSL, ret);
- EShLanguage stages[RenderingDevice::SHADER_STAGE_MAX] = {
- EShLangVertex,
- EShLangFragment,
- EShLangTessControl,
- EShLangTessEvaluation,
- EShLangCompute
- };
- int ClientInputSemanticsVersion = 100; // maps to, say, #define VULKAN 100
- glslang::EShTargetClientVersion ClientVersion = glslang::EShTargetVulkan_1_2;
- glslang::EShTargetLanguageVersion TargetVersion = glslang::EShTargetSpv_1_5;
- if (capabilities.device_family == RDD::DEVICE_VULKAN) {
- if (capabilities.version_major == 1 && capabilities.version_minor == 0) {
- ClientVersion = glslang::EShTargetVulkan_1_0;
- TargetVersion = glslang::EShTargetSpv_1_0;
- } else if (capabilities.version_major == 1 && capabilities.version_minor == 1) {
- ClientVersion = glslang::EShTargetVulkan_1_1;
- TargetVersion = glslang::EShTargetSpv_1_3;
- } else {
- // use defaults
- }
- } else if (capabilities.device_family == RDD::DEVICE_DIRECTX) {
- // NIR-DXIL is Vulkan 1.1-conformant.
- ClientVersion = glslang::EShTargetVulkan_1_1;
- // The SPIR-V part of Mesa supports 1.6, but:
- // - SPIRV-Reflect won't be able to parse the compute workgroup size.
- // - We want to play it safe with NIR-DXIL.
- TargetVersion = glslang::EShTargetSpv_1_3;
- } else if (capabilities.device_family == RDD::DEVICE_METAL) {
- ClientVersion = glslang::EShTargetVulkan_1_1;
- TargetVersion = glslang::EShTargetSpv_1_6;
- } else {
- // once we support other backends we'll need to do something here
- if (r_error) {
- (*r_error) = "GLSLANG - Unsupported device family";
- }
- return ret;
- }
- glslang::TShader shader(stages[p_stage]);
- CharString cs = p_source_code.ascii();
- const char *cs_strings = cs.get_data();
- std::string preamble = "";
- shader.setStrings(&cs_strings, 1);
- shader.setEnvInput(glslang::EShSourceGlsl, stages[p_stage], glslang::EShClientVulkan, ClientInputSemanticsVersion);
- shader.setEnvClient(glslang::EShClientVulkan, ClientVersion);
- shader.setEnvTarget(glslang::EShTargetSpv, TargetVersion);
- {
- uint32_t stage_bit = 1 << p_stage;
- uint32_t subgroup_in_shaders = uint32_t(p_render_device->limit_get(RD::LIMIT_SUBGROUP_IN_SHADERS));
- uint32_t subgroup_operations = uint32_t(p_render_device->limit_get(RD::LIMIT_SUBGROUP_OPERATIONS));
- if ((subgroup_in_shaders & stage_bit) == stage_bit) {
- // stage supports subgroups
- preamble += "#define has_GL_KHR_shader_subgroup_basic 1\n";
- if (subgroup_operations & RenderingDevice::SUBGROUP_VOTE_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_vote 1\n";
- }
- if (subgroup_operations & RenderingDevice::SUBGROUP_ARITHMETIC_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_arithmetic 1\n";
- }
- if (subgroup_operations & RenderingDevice::SUBGROUP_BALLOT_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_ballot 1\n";
- }
- if (subgroup_operations & RenderingDevice::SUBGROUP_SHUFFLE_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_shuffle 1\n";
- }
- if (subgroup_operations & RenderingDevice::SUBGROUP_SHUFFLE_RELATIVE_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_shuffle_relative 1\n";
- }
- if (subgroup_operations & RenderingDevice::SUBGROUP_CLUSTERED_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_clustered 1\n";
- }
- if (subgroup_operations & RenderingDevice::SUBGROUP_QUAD_BIT) {
- preamble += "#define has_GL_KHR_shader_subgroup_quad 1\n";
- }
- }
- }
- if (p_render_device->has_feature(RD::SUPPORTS_MULTIVIEW)) {
- preamble += "#define has_VK_KHR_multiview 1\n";
- }
- if (!preamble.empty()) {
- shader.setPreamble(preamble.c_str());
- }
- EShMessages messages = (EShMessages)(EShMsgSpvRules | EShMsgVulkanRules);
- if (Engine::get_singleton()->is_generate_spirv_debug_info_enabled()) {
- messages = (EShMessages)(messages | EShMsgDebugInfo);
- }
- const int DefaultVersion = 100;
- //parse
- if (!shader.parse(GetDefaultResources(), DefaultVersion, false, messages)) {
- if (r_error) {
- (*r_error) = "Failed parse:\n";
- (*r_error) += shader.getInfoLog();
- (*r_error) += "\n";
- (*r_error) += shader.getInfoDebugLog();
- }
- return ret;
- }
- //link
- glslang::TProgram program;
- program.addShader(&shader);
- if (!program.link(messages)) {
- if (r_error) {
- (*r_error) = "Failed link:\n";
- (*r_error) += program.getInfoLog();
- (*r_error) += "\n";
- (*r_error) += program.getInfoDebugLog();
- }
- return ret;
- }
- std::vector<uint32_t> SpirV;
- spv::SpvBuildLogger logger;
- glslang::SpvOptions spvOptions;
- if (Engine::get_singleton()->is_generate_spirv_debug_info_enabled()) {
- spvOptions.generateDebugInfo = true;
- spvOptions.emitNonSemanticShaderDebugInfo = true;
- spvOptions.emitNonSemanticShaderDebugSource = true;
- }
- glslang::GlslangToSpv(*program.getIntermediate(stages[p_stage]), SpirV, &logger, &spvOptions);
- ret.resize(SpirV.size() * sizeof(uint32_t));
- {
- uint8_t *w = ret.ptrw();
- memcpy(w, &SpirV[0], SpirV.size() * sizeof(uint32_t));
- }
- return ret;
- }
- static String _get_cache_key_function_glsl(const RenderingDevice *p_render_device) {
- const RenderingDeviceDriver::Capabilities &capabilities = p_render_device->get_device_capabilities();
- String version;
- version = "SpirVGen=" + itos(glslang::GetSpirvGeneratorVersion()) + ", major=" + itos(capabilities.version_major) + ", minor=" + itos(capabilities.version_minor) + " , subgroup_size=" + itos(p_render_device->limit_get(RD::LIMIT_SUBGROUP_SIZE)) + " , subgroup_ops=" + itos(p_render_device->limit_get(RD::LIMIT_SUBGROUP_OPERATIONS)) + " , subgroup_in_shaders=" + itos(p_render_device->limit_get(RD::LIMIT_SUBGROUP_IN_SHADERS)) + " , debug=" + itos(Engine::get_singleton()->is_generate_spirv_debug_info_enabled());
- return version;
- }
- void initialize_glslang_module(ModuleInitializationLevel p_level) {
- if (p_level != MODULE_INITIALIZATION_LEVEL_CORE) {
- return;
- }
- // Initialize in case it's not initialized. This is done once per thread
- // and it's safe to call multiple times.
- glslang::InitializeProcess();
- RenderingDevice::shader_set_compile_to_spirv_function(_compile_shader_glsl);
- RenderingDevice::shader_set_get_cache_key_function(_get_cache_key_function_glsl);
- }
- void uninitialize_glslang_module(ModuleInitializationLevel p_level) {
- if (p_level != MODULE_INITIALIZATION_LEVEL_CORE) {
- return;
- }
- glslang::FinalizeProcess();
- }
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