Function GLSLtoSPV

tests/framework/shader_helper.cpp:264–299

Compile a given string containing GLSL into SPV for use by VK Return value of false means an error was encountered.

// Return value of false means an error was encountered.
//
bool GLSLtoSPV(const VkPhysicalDeviceLimits& device_limits, const VkShaderStageFlagBits shader_type, const char* p_shader,
               std::vector<uint32_t>& spirv, const spv_target_env spv_env) {
    TBuiltInResource resources;
    ProcessConfigFile(device_limits, resources);

    EShMessages messages = static_cast<EShMessages>(EShMsgDefault | EShMsgSpvRules | EShMsgVulkanRules);
    EShLanguage stage = FindLanguage(shader_type);
    glslang::TShader shader(stage);
    GlslangTargetEnv glslang_env(spv_env);
    shader.setEnvTarget(glslang::EshTargetSpv, glslang_env);
    shader.setEnvClient(glslang::EShClientVulkan, glslang_env);

    const char* shader_strings[1];
    shader_strings[0] = p_shader;
    shader.setStrings(shader_strings, 1);

    if (!shader.parse(&resources, 100, false, messages)) {
        puts(shader.getInfoLog());
        puts(shader.getInfoDebugLog());
        return false;  // something didn't work
    }

    glslang::TProgram program;
    program.addShader(&shader);

    if (!program.link(messages)) {
        puts(shader.getInfoLog());
        puts(shader.getInfoDebugLog());
        return false;
    }

    glslang::SpvOptions spv_options;
    glslang::GlslangToSpv(*program.getIntermediate(stage), spirv, &spv_options);

    return true;
}

//
// Compile a given string containing SPIR-V assembly into SPV for use by VK