Method _CreateShaderProgram

pxr/imaging/hgi/unitTestHelper.cpp:88–132

}

bool 
HgiPipelineCreationTestDriver::_CreateShaderProgram()
{
    HgiShaderFunctionDesc vertDesc;
    vertDesc.debugName = TfToken("Vertex");
    vertDesc.shaderStage = HgiShaderStageVertex;
    HgiShaderFunctionAddStageInput(
        &vertDesc, "position", "vec4", "position");
    HgiShaderFunctionAddStageInput(
        &vertDesc, "uvIn", "vec2");
    HgiShaderFunctionAddStageOutput(
        &vertDesc, "gl_Position", "vec4", "position");
    HgiShaderFunctionAddStageOutput(
        &vertDesc, "uvOut", "vec2");

    HgiShaderFunctionDesc fragDesc;
    fragDesc.debugName = TfToken("Fragment");
    fragDesc.shaderStage = HgiShaderStageFragment;
    HgiShaderFunctionAddStageInput(
        &fragDesc, "uvOut", "vec2");
    HgiShaderFunctionAddStageOutput(
        &fragDesc, "hd_FragColor", "vec4", "color");

    vertDesc.shaderCode = glslfx_vertShaderStr.c_str();
    HgiShaderFunctionHandle vertFn = _hgi->CreateShaderFunction(vertDesc);
    
    fragDesc.shaderCode = glslfx_fragShaderStr.c_str();
    HgiShaderFunctionHandle fragFn = _hgi->CreateShaderFunction(fragDesc);
    
    HgiShaderProgramDesc programDesc;
    programDesc.debugName = TfToken("FullscreenTriangle").GetString();
    programDesc.shaderFunctions.push_back(std::move(vertFn));
    programDesc.shaderFunctions.push_back(std::move(fragFn));
    _shaderProgram = _hgi->CreateShaderProgram(programDesc);
    
    if (!_shaderProgram->IsValid() || !vertFn->IsValid() ||
        !fragFn->IsValid()) {
        TF_CODING_ERROR("Failed to create shader program");
        _PrintCompileErrors();
        _DestroyShaderProgram();
        return false;
    }

    return true;
}

bool
HgiPipelineCreationTestDriver::_CreatePipeline()