GPUDevice: Swap out glslang for shaderc

CMakeModules/DuckStationDependencies.cmake

@@ -16,6 +16,11 @@ if(NOT WIN32 AND NOT ANDROID)
   find_package(JPEG REQUIRED) # No version because flatpak uses libjpeg-turbo.
   find_package(CURL REQUIRED)
   find_package(Freetype 2.13.1 REQUIRED)
+
+  if(ENABLE_VULKAN OR APPLE)
+    find_package(Shaderc REQUIRED)
+  endif()
+
   if(APPLE)
     set(CMAKE_FIND_FRAMEWORK ${FIND_FRAMEWORK_BACKUP})
   endif()

CMakeModules/FindShaderc.cmake

@@ -0,0 +1,32 @@
+# - Try to find SHADERC
+# Once done this will define
+#  SHADERC_FOUND - System has SHADERC
+#  SHADERC_INCLUDE_DIRS - The SHADERC include directories
+#  SHADERC_LIBRARIES - The libraries needed to use SHADERC
+
+FIND_PATH(
+    SHADERC_INCLUDE_DIR shaderc/shaderc.h
+    HINTS /usr/include /usr/local/include
+    ${SHADERC_PATH_INCLUDES}
+)
+
+FIND_LIBRARY(
+    SHADERC_LIBRARY
+    NAMES shaderc_shared
+    PATHS ${ADDITIONAL_LIBRARY_PATHS} ${SHADERC_PATH_LIB}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Shaderc DEFAULT_MSG
+                                  SHADERC_LIBRARY SHADERC_INCLUDE_DIR)
+
+if(SHADERC_FOUND)
+    add_library(Shaderc::shaderc_shared UNKNOWN IMPORTED)
+    set_target_properties(Shaderc::shaderc_shared PROPERTIES
+        IMPORTED_LOCATION ${SHADERC_LIBRARY}
+        INTERFACE_INCLUDE_DIRECTORIES ${SHADERC_INCLUDE_DIR}
+        INTERFACE_COMPILE_DEFINITIONS "SHADERC_SHAREDLIB"
+    )
+endif()
+
+mark_as_advanced(SHADERC_INCLUDE_DIR SHADERC_LIBRARY)

data/resources/thirdparty.html

@@ -522,6 +522,319 @@ NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 \****************************************************************************/
 </pre>
 
+<h3>Shaderc - <a href="https://github.com/google/shaderc">https://github.com/google/shaderc</a></h3>
+<h3>SPIRV-Tools - <a href="https://github.com/KhronosGroup/SPIRV-Tools">https://github.com/KhronosGroup/SPIRV-Tools</a></h3>
+<pre>
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+</pre>
+
+<h3>SPIRV-Headers - <a href="https://github.com/KhronosGroup/SPIRV-Headers">https://github.com/KhronosGroup/SPIRV-Headers</a></h3>
+<pre>
+Files: All files except for those called out below.
+Copyright (c) 2015-2024 The Khronos Group Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and/or associated documentation files (the
+"Materials"), to deal in the Materials without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Materials, and to
+permit persons to whom the Materials are 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 Materials.
+
+MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+   https://www.khronos.org/registry/
+
+THE MATERIALS ARE 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
+MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+
+---
+
+Files: include/spirv/spir-v.xml
+Copyright (c) 2015-2024 The Khronos Group Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and/or associated documentation files (the
+"Materials"), to deal in the Materials without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Materials, and to
+permit persons to whom the Materials are 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 Materials.
+
+THE MATERIALS ARE 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
+MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+
+---
+
+Files: tools/buildHeaders/jsoncpp/*
+The JsonCpp library's source code, including accompanying documentation,
+tests and demonstration applications, are licensed under the following
+conditions...
+
+The author (Baptiste Lepilleur) explicitly disclaims copyright in all
+jurisdictions which recognize such a disclaimer. In such jurisdictions,
+this software is released into the Public Domain.
+
+In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
+2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur, and is
+released under the terms of the MIT License (see below).
+
+In jurisdictions which recognize Public Domain property, the user of this
+software may choose to accept it either as 1) Public Domain, 2) under the
+conditions of the MIT License (see below), or 3) under the terms of dual
+Public Domain/MIT License conditions described here, as they choose.
+
+The MIT License is about as close to Public Domain as a license can get, and is
+described in clear, concise terms at:
+
+   http://en.wikipedia.org/wiki/MIT_License
+
+The full text of the MIT License follows:
+
+========================================================================
+Copyright (c) 2007-2010 Baptiste Lepilleur
+
+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.
+========================================================================
+
+---
+</pre>
+
 <h3>Dear ImGui - <a href="https://github.com/ocornut/imgui">https://github.com/ocornut/imgui</a></h3>
 <pre>
 The MIT License (MIT)

src/util/CMakeLists.txt

@@ -154,17 +154,6 @@ if(ENABLE_OPENGL)
   endif()
 endif()
 
-if(ENABLE_VULKAN OR APPLE)
-  target_sources(util PRIVATE
-    spirv_compiler.cpp
-    spirv_compiler.h
-  )
-  target_link_libraries(util PRIVATE glslang)
-  if(APPLE)
-    target_link_libraries(util PRIVATE spirv-cross)
-  endif()
-endif()
-
 if(ENABLE_VULKAN)
   target_sources(util PRIVATE
     vulkan_builders.cpp
@@ -188,6 +177,10 @@ if(ENABLE_VULKAN)
   target_link_libraries(util PUBLIC vulkan-headers)
 endif()
 
+if(ENABLE_VULKAN OR APPLE)
+  target_link_libraries(util PUBLIC Shaderc::shaderc_shared)
+endif()
+
 if(ENABLE_SDL2)
   target_sources(util PRIVATE
     sdl_audio_stream.cpp
@@ -270,7 +263,7 @@ elseif(APPLE)
   find_library(IOK_LIBRARY IOKit REQUIRED)
   find_library(METAL_LIBRARY Metal)
   find_library(QUARTZCORE_LIBRARY QuartzCore)
-  target_link_libraries(util PRIVATE ${METAL_LIBRARY} ${QUARTZCORE_LIBRARY} ${IOK_LIBRARY})
+  target_link_libraries(util PRIVATE ${METAL_LIBRARY} ${QUARTZCORE_LIBRARY} ${IOK_LIBRARY} spirv-cross)
   set_source_files_properties(${MAC_SOURCES} PROPERTIES SKIP_PRECOMPILE_HEADERS TRUE)
 elseif(NOT ANDROID)
   target_sources(util PRIVATE

src/util/d3d_common.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
 
 #include "d3d_common.h"
+#include "gpu_device.h"
 
 #include "common/assert.h"
 #include "common/error.h"
@@ -18,8 +19,6 @@
 
 Log_SetChannel(D3DCommon);
 
-static unsigned s_next_bad_shader_id = 1;
-
 const char* D3DCommon::GetFeatureLevelString(D3D_FEATURE_LEVEL feature_level)
 {
   static constexpr std::array<std::tuple<D3D_FEATURE_LEVEL, const char*>, 11> feature_level_names = {{
@@ -424,31 +423,22 @@ std::optional<DynamicHeapArray<u8>> D3DCommon::CompileShader(D3D_FEATURE_LEVEL f
     D3DCompile(source.data(), source.size(), "0", nullptr, nullptr, entry_point, target,
                debug_device ? flags_debug : flags_non_debug, 0, blob.GetAddressOf(), error_blob.GetAddressOf());
 
-  std::string error_string;
+  std::string_view error_string;
   if (error_blob)
-  {
+    error_string =
-    error_string.append(static_cast<const char*>(error_blob->GetBufferPointer()), error_blob->GetBufferSize());
+      std::string_view(static_cast<const char*>(error_blob->GetBufferPointer()), error_blob->GetBufferSize());
-    error_blob.Reset();
-  }
 
   if (FAILED(hr))
   {
-    Log_ErrorPrintf("Failed to compile '%s':\n%s", target, error_string.c_str());
+    Log_ErrorFmt("Failed to compile '{}':\n{}", target, error_string);
-
+    GPUDevice::DumpBadShader(source, error_string);
-    auto fp = FileSystem::OpenManagedCFile(
-      GPUDevice::GetShaderDumpPath(fmt::format("bad_shader_{}.txt", s_next_bad_shader_id++)).c_str(), "wb");
-    if (fp)
-    {
-      std::fwrite(source.data(), source.size(), 1, fp.get());
-      std::fprintf(fp.get(), "\n\nCompile as %s failed: %08X\n", target, static_cast<unsigned>(hr));
-      std::fwrite(error_string.c_str(), error_string.size(), 1, fp.get());
-    }
-
     return {};
   }
 
   if (!error_string.empty())
-    Log_WarningPrintf("'%s' compiled with warnings:\n%s", target, error_string.c_str());
+    Log_WarningFmt("'{}' compiled with warnings:\n{}", target, error_string);
+
+  error_blob.Reset();
 
   return DynamicHeapArray<u8>(static_cast<const u8*>(blob->GetBufferPointer()), blob->GetBufferSize());
 }

src/util/gpu_device.cpp

@@ -736,6 +736,22 @@ std::string GPUDevice::GetShaderDumpPath(const std::string_view& name)
   return Path::Combine(EmuFolders::Dumps, name);
 }
 
+void GPUDevice::DumpBadShader(std::string_view code, std::string_view errors)
+{
+  static u32 next_bad_shader_id = 0;
+
+  const std::string filename = GetShaderDumpPath(fmt::format("bad_shader_{}.txt", ++next_bad_shader_id));
+  auto fp = FileSystem::OpenManagedCFile(filename.c_str(), "wb");
+  if (fp)
+  {
+    if (!code.empty())
+      std::fwrite(code.data(), code.size(), 1, fp.get());
+    std::fputs("\n\n**** ERRORS ****\n", fp.get());
+    if (!errors.empty())
+      std::fwrite(errors.data(), errors.size(), 1, fp.get());
+  }
+}
+
 std::array<float, 4> GPUDevice::RGBA8ToFloat(u32 rgba)
 {
   return std::array<float, 4>{static_cast<float>(rgba & UINT32_C(0xFF)) * (1.0f / 255.0f),

src/util/gpu_device.h

@@ -518,6 +518,9 @@ public:
   /// Returns the directory bad shaders are saved to.
   static std::string GetShaderDumpPath(const std::string_view& name);
 
+  /// Dumps out a shader that failed compilation.
+  static void DumpBadShader(std::string_view code, std::string_view errors);
+
   /// Converts a RGBA8 value to 4 floating-point values.
   static std::array<float, 4> RGBA8ToFloat(u32 rgba);
 

src/util/metal_device.mm

@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
 
 #include "metal_device.h"
-#include "spirv_compiler.h"
 
 #include "common/align.h"
 #include "common/assert.h"
@@ -16,6 +15,10 @@
 #define FMT_EXCEPTIONS 0
 #include "fmt/format.h"
 
+#include "shaderc/shaderc.hpp"
+#include "spirv-cross/spirv_cross.hpp"
+#include "spirv-cross/spirv_msl.hpp"
+
 #include <array>
 #include <pthread.h>
 
@@ -56,7 +59,7 @@ static constexpr std::array<MTLPixelFormat, static_cast<u32>(GPUTexture::Format:
   MTLPixelFormatBGR10A2Unorm, // RGB10A2
 };
 
-static unsigned s_next_bad_shader_id = 1;
+static std::unique_ptr<shaderc::Compiler> s_shaderc_compiler;
 
 static NSString* StringViewToNSString(const std::string_view& str)
 {
@@ -615,18 +618,8 @@ std::unique_ptr<GPUShader> MetalDevice::CreateShaderFromMSL(GPUShaderStage stage
     {
       LogNSError(error, "Failed to compile %s shader", GPUShader::GetStageName(stage));
 
-      auto fp = FileSystem::OpenManagedCFile(
-        Path::Combine(EmuFolders::DataRoot, fmt::format("bad_shader_{}.txt", s_next_bad_shader_id++)).c_str(), "wb");
-      if (fp)
-      {
-        std::fwrite(source.data(), source.size(), 1, fp.get());
-        std::fprintf(fp.get(), "\n\nCompile %s failed: %u\n", GPUShader::GetStageName(stage),
-                     static_cast<u32>(error.code));
-
       const char* utf_error = [error.description UTF8String];
-        std::fwrite(utf_error, std::strlen(utf_error), 1, fp.get());
+      DumpBadShader(source, fmt::format("Error {}: {}", static_cast<u32>(error.code), utf_error ? utf_error : ""));
-      }
-
       return {};
     }
 
@@ -651,42 +644,90 @@ std::unique_ptr<GPUShader> MetalDevice::CreateShaderFromSource(GPUShaderStage st
                                                                const char* entry_point,
                                                                DynamicHeapArray<u8>* out_binary /* = nullptr */)
 {
-  const u32 options = (m_debug_device ? SPIRVCompiler::DebugInfo : 0) | SPIRVCompiler::VulkanRules;
   static constexpr bool dump_shaders = false;
 
-  if (std::strcmp(entry_point, "main") != 0)
+  static constexpr const std::array<shaderc_shader_kind, static_cast<size_t>(GPUShaderStage::MaxCount)> stage_kinds = {{
+    shaderc_glsl_vertex_shader,
+    shaderc_glsl_fragment_shader,
+    shaderc_glsl_geometry_shader,
+    shaderc_glsl_compute_shader,
+  }};
+
+  // TODO: NOT thread safe, yet.
+  if (!s_shaderc_compiler)
+    s_shaderc_compiler = std::make_unique<shaderc::Compiler>();
+
+  shaderc::CompileOptions spv_options;
+  spv_options.SetSourceLanguage(shaderc_source_language_glsl);
+  spv_options.SetTargetEnvironment(shaderc_target_env_vulkan, 0);
+
+  if (m_debug_device)
   {
-    Log_ErrorPrintf("Entry point must be 'main', but got '%s' instead.", entry_point);
+    spv_options.SetOptimizationLevel(shaderc_optimization_level_zero);
-    return {};
+    spv_options.SetGenerateDebugInfo();
+  }
+  else
+  {
+    spv_options.SetOptimizationLevel(shaderc_optimization_level_performance);
   }
 
-  std::optional<SPIRVCompiler::SPIRVCodeVector> spirv = SPIRVCompiler::CompileShader(stage, source, options);
+  const shaderc::SpvCompilationResult result = s_shaderc_compiler->CompileGlslToSpv(
-  if (!spirv.has_value())
+    source.data(), source.length(), stage_kinds[static_cast<size_t>(stage)], "source", entry_point, spv_options);
+  if (result.GetCompilationStatus() != shaderc_compilation_status_success)
   {
-    Log_ErrorPrintf("Failed to compile shader to SPIR-V.");
+    const std::string errors = result.GetErrorMessage();
+    DumpBadShader(source, errors);
+    Log_ErrorFmt("Failed to compile shader to SPIR-V:\n{}", errors);
     return {};
   }
+  else if (result.GetNumWarnings() > 0)
+  {
+    Log_WarningFmt("Shader compiled with warnings:\n{}", result.GetErrorMessage());
+  }
 
-  std::optional<std::string> msl = SPIRVCompiler::CompileSPIRVToMSL(stage, spirv.value());
+  spirv_cross::CompilerMSL compiler(result.cbegin(), std::distance(result.cbegin(), result.cend()));
-  if (!msl.has_value())
+  spirv_cross::CompilerMSL::Options msl_options = compiler.get_msl_options();
+  msl_options.pad_fragment_output_components = true;
+
+  if (stage == GPUShaderStage::Fragment)
+  {
+    for (u32 i = 0; i < MAX_TEXTURE_SAMPLERS; i++)
+    {
+      spirv_cross::MSLResourceBinding rb;
+      rb.stage = spv::ExecutionModelFragment;
+      rb.desc_set = 1;
+      rb.binding = i;
+      rb.count = 1;
+      rb.msl_texture = i;
+      rb.msl_sampler = i;
+      rb.msl_buffer = i;
+      compiler.add_msl_resource_binding(rb);
+    }
+  }
+
+  compiler.set_msl_options(msl_options);
+
+  const std::string msl = compiler.compile();
+  if (msl.empty())
   {
     Log_ErrorPrintf("Failed to compile SPIR-V to MSL.");
     return {};
   }
   if constexpr (dump_shaders)
   {
-    DumpShader(s_next_bad_shader_id, "_input", source);
+    static unsigned s_next_id = 0;
-    DumpShader(s_next_bad_shader_id, "_msl", msl.value());
+    ++s_next_id;
-    s_next_bad_shader_id++;
+    DumpShader(s_next_id, "_input", source);
+    DumpShader(s_next_id, "_msl", msl);
   }
 
   if (out_binary)
   {
-    out_binary->resize(msl->size());
+    out_binary->resize(msl.size());
-    std::memcpy(out_binary->data(), msl->data(), msl->size());
+    std::memcpy(out_binary->data(), msl.data(), msl.size());
   }
 
-  return CreateShaderFromMSL(stage, msl.value(), "main0");
+  return CreateShaderFromMSL(stage, msl, "main0");
 }
 
 MetalPipeline::MetalPipeline(id<MTLRenderPipelineState> pipeline, id<MTLDepthStencilState> depth, MTLCullMode cull_mode,

src/util/opengl_pipeline.cpp

@@ -43,8 +43,6 @@ struct PipelineDiskCacheIndexEntry
 };
 static_assert(sizeof(PipelineDiskCacheIndexEntry) == 112); // No padding
 
-static unsigned s_next_bad_shader_id = 1;
-
 static GLenum GetGLShaderType(GPUShaderStage stage)
 {
   static constexpr std::array<GLenum, static_cast<u32>(GPUShaderStage::MaxCount)> mapping = {{
@@ -138,17 +136,8 @@ bool OpenGLShader::Compile()
     }
     else
     {
-      Log_ErrorPrintf("Shader failed to compile:\n%s", info_log.c_str());
+      Log_ErrorFmt("Shader failed to compile:\n{}", info_log);
-
+      GPUDevice::DumpBadShader(m_source, info_log);
-      auto fp = FileSystem::OpenManagedCFile(
-        GPUDevice::GetShaderDumpPath(fmt::format("bad_shader_{}.txt", s_next_bad_shader_id++)).c_str(), "wb");
-      if (fp)
-      {
-        std::fwrite(m_source.data(), m_source.size(), 1, fp.get());
-        std::fprintf(fp.get(), "\n\nCompile %s shader failed\n", GPUShader::GetStageName(m_stage));
-        std::fwrite(info_log.c_str(), info_log_length, 1, fp.get());
-      }
-
       glDeleteShader(shader);
       return false;
     }

src/util/spirv_compiler.cpp

@@ -1,205 +0,0 @@
-// SPDX-FileCopyrightText: 2023 Connor McLaughlin <stenzek@gmail.com>
-// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
-
-#include "spirv_compiler.h"
-#include "gpu_device.h"
-
-#include "core/settings.h" // TODO: Remove me
-
-#include "common/assert.h"
-#include "common/file_system.h"
-#include "common/log.h"
-#include "common/path.h"
-#include "common/string_util.h"
-
-#include "fmt/format.h"
-
-#include <cstring>
-#include <memory>
-Log_SetChannel(SPIRVCompiler);
-
-// glslang includes
-#include "SPIRV/GlslangToSpv.h"
-#include "StandAlone/ResourceLimits.h"
-#include "glslang/Public/ShaderLang.h"
-
-#ifdef __APPLE__
-#include "spirv-cross/spirv_cross.hpp"
-#include "spirv-cross/spirv_msl.hpp"
-#endif
-
-namespace SPIRVCompiler {
-static std::optional<SPIRVCodeVector> CompileShaderToSPV(EShLanguage stage, const char* stage_filename,
-                                                         std::string_view source, u32 options);
-
-static unsigned s_next_bad_shader_id = 1;
-} // namespace SPIRVCompiler
-
-std::optional<SPIRVCompiler::SPIRVCodeVector>
-SPIRVCompiler::CompileShaderToSPV(EShLanguage stage, const char* stage_filename, std::string_view source, u32 options)
-{
-  static bool glslang_initialized = false;
-  if (!glslang_initialized)
-  {
-    if (!glslang::InitializeProcess())
-    {
-      Panic("Failed to initialize glslang shader compiler");
-      return std::nullopt;
-    }
-
-    std::atexit(&glslang::FinalizeProcess);
-    glslang_initialized = true;
-  }
-
-  std::unique_ptr<glslang::TShader> shader = std::make_unique<glslang::TShader>(stage);
-  std::unique_ptr<glslang::TProgram> program;
-  glslang::TShader::ForbidIncluder includer;
-  const EProfile profile = ECoreProfile;
-  const EShMessages messages =
-    static_cast<EShMessages>(EShMsgDefault | EShMsgSpvRules | ((options & VulkanRules) ? EShMsgVulkanRules : 0) |
-                             ((options & DebugInfo) ? EShMsgDebugInfo : 0));
-  const int default_version = 450;
-
-  std::string full_source_code;
-  const char* pass_source_code = source.data();
-  int pass_source_code_length = static_cast<int>(source.size());
-  shader->setStringsWithLengths(&pass_source_code, &pass_source_code_length, 1);
-
-  auto DumpBadShader = [&](const char* msg) {
-    const std::string filename =
-      Path::Combine(EmuFolders::DataRoot, fmt::format("bad_shader_{}.txt", s_next_bad_shader_id++));
-    Log_ErrorPrintf("CompileShaderToSPV: %s, writing to %s", msg, filename.c_str());
-
-    auto fp = FileSystem::OpenManagedCFile(filename.c_str(), "wb");
-    if (fp)
-    {
-      std::fwrite(source.data(), source.size(), 1, fp.get());
-      std::fprintf(fp.get(), "\n\n%s\n", msg);
-      std::fprintf(fp.get(), "Shader Info Log:\n%s\n%s\n", shader->getInfoLog(), shader->getInfoDebugLog());
-      if (program)
-        std::fprintf(fp.get(), "Program Info Log:%s\n%s\n", program->getInfoLog(), program->getInfoDebugLog());
-    }
-  };
-
-  if (!shader->parse(&glslang::DefaultTBuiltInResource, default_version, profile, false, true, messages, includer))
-  {
-    DumpBadShader("Failed to parse shader");
-    return std::nullopt;
-  }
-
-  // Even though there's only a single shader, we still need to link it to generate SPV
-  program = std::make_unique<glslang::TProgram>();
-  program->addShader(shader.get());
-  if (!program->link(messages))
-  {
-    DumpBadShader("Failed to link program");
-    return std::nullopt;
-  }
-
-  glslang::TIntermediate* intermediate = program->getIntermediate(static_cast<EShLanguage>(stage));
-  if (!intermediate)
-  {
-    DumpBadShader("Failed to generate SPIR-V");
-    return std::nullopt;
-  }
-
-  SPIRVCodeVector out_code;
-  spv::SpvBuildLogger logger;
-  glslang::SpvOptions spvoptions;
-  spvoptions.generateDebugInfo = (options & DebugInfo) != 0;
-  glslang::GlslangToSpv(*intermediate, out_code, &logger, &spvoptions);
-
-  // Write out messages
-  if (std::strlen(shader->getInfoLog()) > 0)
-    Log_WarningPrintf("Shader info log: %s", shader->getInfoLog());
-  if (std::strlen(shader->getInfoDebugLog()) > 0)
-    Log_WarningPrintf("Shader debug info log: %s", shader->getInfoDebugLog());
-  if (std::strlen(program->getInfoLog()) > 0)
-    Log_WarningPrintf("Program info log: %s", program->getInfoLog());
-  if (std::strlen(program->getInfoDebugLog()) > 0)
-    Log_WarningPrintf("Program debug info log: %s", program->getInfoDebugLog());
-  std::string spv_messages = logger.getAllMessages();
-  if (!spv_messages.empty())
-    Log_WarningPrintf("SPIR-V conversion messages: %s", spv_messages.c_str());
-
-  return out_code;
-}
-
-std::optional<SPIRVCompiler::SPIRVCodeVector> SPIRVCompiler::CompileVertexShader(std::string_view source_code,
-                                                                                 u32 options)
-{
-  return CompileShaderToSPV(EShLangVertex, "vs", source_code, options);
-}
-
-std::optional<SPIRVCompiler::SPIRVCodeVector> SPIRVCompiler::CompileFragmentShader(std::string_view source_code,
-                                                                                   u32 options)
-{
-  return CompileShaderToSPV(EShLangFragment, "ps", source_code, options);
-}
-
-std::optional<SPIRVCompiler::SPIRVCodeVector> SPIRVCompiler::CompileGeometryShader(std::string_view source_code,
-                                                                                   u32 options)
-{
-  return CompileShaderToSPV(EShLangGeometry, "gs", source_code, options);
-}
-
-std::optional<SPIRVCompiler::SPIRVCodeVector> SPIRVCompiler::CompileComputeShader(std::string_view source_code,
-                                                                                  u32 options)
-{
-  return CompileShaderToSPV(EShLangCompute, "cs", source_code, options);
-}
-
-std::optional<SPIRVCompiler::SPIRVCodeVector> SPIRVCompiler::CompileShader(GPUShaderStage type,
-                                                                           std::string_view source_code, u32 options)
-{
-  switch (type)
-  {
-    case GPUShaderStage::Vertex:
-      return CompileShaderToSPV(EShLangVertex, "vs", source_code, options);
-
-    case GPUShaderStage::Fragment:
-      return CompileShaderToSPV(EShLangFragment, "ps", source_code, options);
-
-    case GPUShaderStage::Geometry:
-      return CompileShaderToSPV(EShLangGeometry, "gs", source_code, options);
-
-    case GPUShaderStage::Compute:
-      return CompileShaderToSPV(EShLangCompute, "cs", source_code, options);
-
-    default:
-      return std::nullopt;
-  }
-}
-
-#ifdef __APPLE__
-
-std::optional<std::string> SPIRVCompiler::CompileSPIRVToMSL(GPUShaderStage stage, std::span<const SPIRVCodeType> spv)
-{
-  spirv_cross::CompilerMSL compiler(spv.data(), spv.size());
-
-  spirv_cross::CompilerMSL::Options options = compiler.get_msl_options();
-  options.pad_fragment_output_components = true;
-
-  if (stage == GPUShaderStage::Fragment)
-  {
-    for (u32 i = 0; i < GPUDevice::MAX_TEXTURE_SAMPLERS; i++)
-    {
-      spirv_cross::MSLResourceBinding rb;
-      rb.stage = spv::ExecutionModelFragment;
-      rb.desc_set = 1;
-      rb.binding = i;
-      rb.count = 1;
-      rb.msl_texture = i;
-      rb.msl_sampler = i;
-      rb.msl_buffer = i;
-      compiler.add_msl_resource_binding(rb);
-    }
-  }
-
-  compiler.set_msl_options(options);
-
-  std::string msl = compiler.compile();
-  return (msl.empty()) ? std::optional<std::string>() : std::optional<std::string>(std::move(msl));
-}
-
-#endif

src/util/spirv_compiler.h

@@ -1,49 +0,0 @@
-// SPDX-FileCopyrightText: 2023 Connor McLaughlin <stenzek@gmail.com>
-// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
-
-#pragma once
-
-#include "common/types.h"
-
-#include <optional>
-#include <span>
-#include <string>
-#include <string_view>
-#include <vector>
-
-enum class GPUShaderStage : u8;
-
-namespace SPIRVCompiler {
-
-enum CompileOptions
-{
-  DebugInfo = (1 << 0),
-  VulkanRules = (1 << 1),
-};
-
-// SPIR-V compiled code type
-using SPIRVCodeType = u32;
-using SPIRVCodeVector = std::vector<SPIRVCodeType>;
-
-// Compile a vertex shader to SPIR-V.
-std::optional<SPIRVCodeVector> CompileVertexShader(std::string_view source_code, u32 options);
-
-// Compile a fragment shader to SPIR-V.
-std::optional<SPIRVCodeVector> CompileFragmentShader(std::string_view source_code, u32 options);
-
-// Compile a geometry shader to SPIR-V.
-std::optional<SPIRVCodeVector> CompileGeometryShader(std::string_view source_code, u32 options);
-
-// Compile a compute shader to SPIR-V.
-std::optional<SPIRVCodeVector> CompileComputeShader(std::string_view source_code, u32 options);
-
-std::optional<SPIRVCodeVector> CompileShader(GPUShaderStage stage, std::string_view source_code, u32 options);
-
-#ifdef __APPLE__
-
-// Converts a SPIR-V shader into MSL.
-std::optional<std::string> CompileSPIRVToMSL(GPUShaderStage stage, std::span<const SPIRVCodeType> spv);
-
-#endif
-
-} // namespace SPIRVCompiler

src/util/util.props

@@ -4,7 +4,7 @@
 
   <ItemDefinitionGroup>
     <ClCompile>
-      <PreprocessorDefinitions>%(PreprocessorDefinitions);SOUNDTOUCH_FLOAT_SAMPLES;SOUNDTOUCH_ALLOW_SSE;ST_NO_EXCEPTION_HANDLING=1</PreprocessorDefinitions>
+      <PreprocessorDefinitions>%(PreprocessorDefinitions);SOUNDTOUCH_FLOAT_SAMPLES;SOUNDTOUCH_ALLOW_SSE;ST_NO_EXCEPTION_HANDLING=1;SHADERC_SHAREDLIB</PreprocessorDefinitions>
       <PreprocessorDefinitions>ENABLE_CUBEB=1;ENABLE_SDL2=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(Platform)'!='ARM64'">%(PreprocessorDefinitions);ENABLE_OPENGL=1;ENABLE_VULKAN=1</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(Platform)'=='ARM64'">%(PreprocessorDefinitions);SOUNDTOUCH_USE_NEON</PreprocessorDefinitions>
@@ -28,7 +28,7 @@
       <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(DepsIncludeDir)SDL2</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>%(AdditionalDependencies);freetype.lib;libjpeg.lib;libpng16.lib;libwebp.lib;SDL2.lib;zlib.lib;zstd.lib</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies);freetype.lib;libjpeg.lib;libpng16.lib;libwebp.lib;SDL2.lib;shaderc_shared.lib;zlib.lib;zstd.lib</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -39,6 +39,7 @@
     <DepsDLLs Include="$(DepsBinDir)libsharpyuv.dll" />
     <DepsDLLs Include="$(DepsBinDir)libwebp.dll" />
     <DepsDLLs Include="$(DepsBinDir)SDL2.dll" />
+    <DepsDLLs Include="$(DepsBinDir)shaderc_shared.dll" />
     <DepsDLLs Include="$(DepsBinDir)zlib1.dll" />
     <DepsDLLs Include="$(DepsBinDir)zstd.dll" />
   </ItemGroup>

src/util/util.vcxproj

@@ -88,9 +88,6 @@
     <ClInclude Include="sdl_input_source.h" />
     <ClInclude Include="shadergen.h" />
     <ClInclude Include="shiftjis.h" />
-    <ClInclude Include="spirv_compiler.h">
-      <ExcludedFromBuild Condition="'$(Platform)'=='ARM64'">true</ExcludedFromBuild>
-    </ClInclude>
     <ClInclude Include="state_wrapper.h" />
     <ClInclude Include="cd_xa.h" />
     <ClInclude Include="vulkan_builders.h">
@@ -208,9 +205,6 @@
     <ClCompile Include="shadergen.cpp" />
     <ClCompile Include="shiftjis.cpp" />
     <ClCompile Include="page_fault_handler.cpp" />
-    <ClCompile Include="spirv_compiler.cpp">
-      <ExcludedFromBuild Condition="'$(Platform)'=='ARM64'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="state_wrapper.cpp" />
     <ClCompile Include="cd_xa.cpp" />
     <ClCompile Include="vulkan_builders.cpp">
@@ -263,9 +257,6 @@
     <ProjectReference Include="..\..\dep\glad\glad.vcxproj" Condition="'$(Platform)'!='ARM64'">
       <Project>{43540154-9e1e-409c-834f-b84be5621388}</Project>
     </ProjectReference>
-    <ProjectReference Include="..\..\dep\glslang\glslang.vcxproj" Condition="'$(Platform)'!='ARM64'">
-      <Project>{7f909e29-4808-4bd9-a60c-56c51a3aaec2}</Project>
-    </ProjectReference>
     <ProjectReference Include="..\common\common.vcxproj">
       <Project>{ee054e08-3799-4a59-a422-18259c105ffd}</Project>
     </ProjectReference>

src/util/util.vcxproj.filters

@@ -32,7 +32,6 @@
     <ClInclude Include="opengl_pipeline.h" />
     <ClInclude Include="opengl_stream_buffer.h" />
     <ClInclude Include="opengl_texture.h" />
-    <ClInclude Include="spirv_compiler.h" />
     <ClInclude Include="vulkan_builders.h" />
     <ClInclude Include="vulkan_device.h" />
     <ClInclude Include="vulkan_entry_points.h" />
@@ -117,7 +116,6 @@
     <ClCompile Include="opengl_pipeline.cpp" />
     <ClCompile Include="opengl_stream_buffer.cpp" />
     <ClCompile Include="opengl_texture.cpp" />
-    <ClCompile Include="spirv_compiler.cpp" />
     <ClCompile Include="vulkan_builders.cpp" />
     <ClCompile Include="vulkan_device.cpp" />
     <ClCompile Include="vulkan_loader.cpp" />

src/util/vulkan_pipeline.cpp

@@ -1,16 +1,19 @@
-// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
+// SPDX-FileCopyrightText: 2019-2024 Connor McLaughlin <stenzek@gmail.com>
 // SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
 
 #include "vulkan_pipeline.h"
-#include "spirv_compiler.h"
 #include "vulkan_builders.h"
 #include "vulkan_device.h"
 
 #include "common/assert.h"
 #include "common/log.h"
 
+#include "shaderc/shaderc.hpp"
+
 Log_SetChannel(VulkanDevice);
 
+static std::unique_ptr<shaderc::Compiler> s_shaderc_compiler;
+
 VulkanShader::VulkanShader(GPUShaderStage stage, VkShaderModule mod) : GPUShader(stage), m_module(mod)
 {
 }
@@ -45,29 +48,54 @@ std::unique_ptr<GPUShader> VulkanDevice::CreateShaderFromSource(GPUShaderStage s
                                                                 const char* entry_point,
                                                                 DynamicHeapArray<u8>* out_binary)
 {
-  if (std::strcmp(entry_point, "main") != 0)
+  static constexpr const std::array<shaderc_shader_kind, static_cast<size_t>(GPUShaderStage::MaxCount)> stage_kinds = {{
+    shaderc_glsl_vertex_shader,
+    shaderc_glsl_fragment_shader,
+    shaderc_glsl_geometry_shader,
+    shaderc_glsl_compute_shader,
+  }};
+
+  // TODO: NOT thread safe, yet.
+  if (!s_shaderc_compiler)
+    s_shaderc_compiler = std::make_unique<shaderc::Compiler>();
+
+  shaderc::CompileOptions options;
+  options.SetSourceLanguage(shaderc_source_language_glsl);
+  options.SetTargetEnvironment(shaderc_target_env_vulkan, 0);
+
+  if (m_debug_device)
   {
-    Log_ErrorPrintf("Entry point must be 'main', but got '%s' instead.", entry_point);
+    options.SetOptimizationLevel(shaderc_optimization_level_zero);
-    return {};
+    options.SetGenerateDebugInfo();
+  }
+  else
+  {
+    options.SetOptimizationLevel(shaderc_optimization_level_performance);
   }
 
-  const u32 options = (m_debug_device ? SPIRVCompiler::DebugInfo : 0) | SPIRVCompiler::VulkanRules;
+  const shaderc::SpvCompilationResult result = s_shaderc_compiler->CompileGlslToSpv(
-
+    source.data(), source.length(), stage_kinds[static_cast<size_t>(stage)], "source", entry_point, options);
-  std::optional<SPIRVCompiler::SPIRVCodeVector> spirv = SPIRVCompiler::CompileShader(stage, source, options);
+  if (result.GetCompilationStatus() != shaderc_compilation_status_success)
-  if (!spirv.has_value())
   {
-    Log_ErrorPrintf("Failed to compile shader to SPIR-V.");
+    const std::string errors = result.GetErrorMessage();
+    DumpBadShader(source, errors);
+    Log_ErrorFmt("Failed to compile shader to SPIR-V:\n{}", errors);
     return {};
   }
+  else if (result.GetNumWarnings() > 0)
+  {
+    Log_WarningFmt("Shader compiled with warnings:\n{}", result.GetErrorMessage());
+  }
 
-  const size_t spirv_size = spirv->size() * sizeof(SPIRVCompiler::SPIRVCodeType);
+  const size_t spirv_size = std::distance(result.cbegin(), result.cend()) * sizeof(*result.cbegin());
+  DebugAssert(spirv_size > 0);
   if (out_binary)
   {
     out_binary->resize(spirv_size);
-    std::memcpy(out_binary->data(), spirv->data(), spirv_size);
+    std::copy(result.cbegin(), result.cend(), reinterpret_cast<uint32_t*>(out_binary->data()));
   }
 
-  return CreateShaderFromBinary(stage, std::span<const u8>(reinterpret_cast<const u8*>(spirv->data()), spirv_size));
+  return CreateShaderFromBinary(stage, std::span<const u8>(reinterpret_cast<const u8*>(result.cbegin()), spirv_size));
 }
 
 //////////////////////////////////////////////////////////////////////////