diff options
Diffstat (limited to 'modules/glslang')
| -rw-r--r-- | modules/glslang/register_types.cpp | 63 |
1 files changed, 59 insertions, 4 deletions
diff --git a/modules/glslang/register_types.cpp b/modules/glslang/register_types.cpp index 545aa68747..14135265b9 100644 --- a/modules/glslang/register_types.cpp +++ b/modules/glslang/register_types.cpp @@ -37,7 +37,7 @@ #include <glslang/Include/Types.h> #include <glslang/Public/ShaderLang.h> -static Vector<uint8_t> _compile_shader_glsl(RenderingDevice::ShaderStage p_stage, const String &p_source_code, RenderingDevice::ShaderLanguage p_language, String *r_error) { +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::Capabilities *p_capabilities) { Vector<uint8_t> ret; ERR_FAIL_COND_V(p_language == RenderingDevice::SHADER_LANGUAGE_HLSL, ret); @@ -51,20 +51,75 @@ static Vector<uint8_t> _compile_shader_glsl(RenderingDevice::ShaderStage p_stage }; int ClientInputSemanticsVersion = 100; // maps to, say, #define VULKAN 100 + bool check_subgroup_support = true; // assume we support subgroups - glslang::EShTargetClientVersion VulkanClientVersion = glslang::EShTargetVulkan_1_0; - glslang::EShTargetLanguageVersion TargetVersion = glslang::EShTargetSpv_1_3; + glslang::EShTargetClientVersion ClientVersion = glslang::EShTargetVulkan_1_2; + glslang::EShTargetLanguageVersion TargetVersion = glslang::EShTargetSpv_1_5; glslang::TShader::ForbidIncluder includer; + if (p_capabilities->device_family == RenderingDevice::DeviceFamily::DEVICE_VULKAN) { + if (p_capabilities->version_major == 1 && p_capabilities->version_minor == 0) { + ClientVersion = glslang::EShTargetVulkan_1_0; + TargetVersion = glslang::EShTargetSpv_1_0; + check_subgroup_support = false; // subgroups are not supported in Vulkan 1.0 + } else if (p_capabilities->version_major == 1 && p_capabilities->version_minor == 1) { + ClientVersion = glslang::EShTargetVulkan_1_1; + TargetVersion = glslang::EShTargetSpv_1_3; + } else { + // use defaults + } + } 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, VulkanClientVersion); + shader.setEnvClient(glslang::EShClientVulkan, ClientVersion); shader.setEnvTarget(glslang::EShTargetSpv, TargetVersion); + if (check_subgroup_support) { + uint32_t stage_bit = 1 << p_stage; + + if ((p_capabilities->subgroup_in_shaders & stage_bit) == stage_bit) { + // stage supports subgroups + preamble += "#define has_GL_KHR_shader_subgroup_basic 1\n"; + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_VOTE_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_vote 1\n"; + } + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_ARITHMETIC_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_arithmetic 1\n"; + } + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_BALLOT_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_ballot 1\n"; + } + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_SHUFFLE_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_shuffle 1\n"; + } + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_SHUFFLE_RELATIVE_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_shuffle_relative 1\n"; + } + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_CLUSTERED_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_clustered 1\n"; + } + if (p_capabilities->subgroup_operations & RenderingDevice::SUBGROUP_QUAD_BIT) { + preamble += "#define has_GL_KHR_shader_subgroup_quad 1\n"; + } + } + } + + if (preamble != "") { + shader.setPreamble(preamble.c_str()); + } + EShMessages messages = (EShMessages)(EShMsgSpvRules | EShMsgVulkanRules); const int DefaultVersion = 100; std::string pre_processed_code; |