ShaderModuleManager()
    {
      m_usedSetupIF = &m_defaultSetupIF;
      m_supportsExtendedInclude = true;
#if USESHADERC
      m_shadercCompiler = shaderc_compiler_initialize();
      m_shadercOptions = shaderc_compile_options_initialize();
#endif
    }
bool GrVkPipelineStateBuilder::CreateVkShaderModule(const GrVkGpu* gpu,
                                                    VkShaderStageFlagBits stage,
                                                    const GrGLSLShaderBuilder& builder,
                                                    VkShaderModule* shaderModule,
                                                    VkPipelineShaderStageCreateInfo* stageInfo) {
    SkString shaderString;
    for (int i = 0; i < builder.fCompilerStrings.count(); ++i) {
        if (builder.fCompilerStrings[i]) {
            shaderString.append(builder.fCompilerStrings[i]);
            shaderString.append("\n");
        }
    }

    VkShaderModuleCreateInfo moduleCreateInfo;
    memset(&moduleCreateInfo, 0, sizeof(VkShaderModuleCreateInfo));
    moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
    moduleCreateInfo.pNext = nullptr;
    moduleCreateInfo.flags = 0;

    shaderc_compilation_result_t result = nullptr;

    if (gpu->vkCaps().canUseGLSLForShaderModule()) {
        moduleCreateInfo.codeSize = strlen(shaderString.c_str());
        moduleCreateInfo.pCode = (const uint32_t*)shaderString.c_str();
    } else {

        shaderc_compiler_t compiler = gpu->shadercCompiler();

        shaderc_compile_options_t options = shaderc_compile_options_initialize();

        shaderc_shader_kind shadercStage = vk_shader_stage_to_shaderc_kind(stage);
        result = shaderc_compile_into_spv(compiler,
                                          shaderString.c_str(),
                                          strlen(shaderString.c_str()),
                                          shadercStage,
                                          "shader",
                                          "main",
                                          options);
        shaderc_compile_options_release(options);
#ifdef SK_DEBUG
        if (shaderc_result_get_num_errors(result)) {
            SkDebugf("%s\n", shaderString.c_str());
            SkDebugf("%s\n", shaderc_result_get_error_message(result));
            return false;
        }
#endif

        moduleCreateInfo.codeSize = shaderc_result_get_length(result);
        moduleCreateInfo.pCode = (const uint32_t*)shaderc_result_get_bytes(result);
    }

    VkResult err = GR_VK_CALL(gpu->vkInterface(), CreateShaderModule(gpu->device(),
                                                                     &moduleCreateInfo,
                                                                     nullptr,
                                                                     shaderModule));
    if (!gpu->vkCaps().canUseGLSLForShaderModule()) {
        shaderc_result_release(result);
    }
    if (err) {
        return false;
    }

    memset(stageInfo, 0, sizeof(VkPipelineShaderStageCreateInfo));
    stageInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
    stageInfo->pNext = nullptr;
    stageInfo->flags = 0;
    stageInfo->stage = stage;
    stageInfo->module = *shaderModule;
    stageInfo->pName = "main";
    stageInfo->pSpecializationInfo = nullptr;

    return true;
}
Esempio n. 3
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 CompileOptions() {
     options_ = shaderc_compile_options_initialize();
 }