Function loadGLSLProgram

cpp/4_CUDA_Libraries/oceanFFT/oceanFFT.cpp:872–903

Create shader program from vertex shader and fragment shader files

// Create shader program from vertex shader and fragment shader files
GLuint loadGLSLProgram(const char *vertFileName, const char *fragFileName)
{
    GLint  linked;
    GLuint program;

    program = glCreateProgram();

    if (!attachShader(program, GL_VERTEX_SHADER, vertFileName)) {
        glDeleteProgram(program);
        fprintf(stderr, "Couldn't attach vertex shader from file %s\n", vertFileName);
        return 0;
    }

    if (!attachShader(program, GL_FRAGMENT_SHADER, fragFileName)) {
        glDeleteProgram(program);
        fprintf(stderr, "Couldn't attach fragment shader from file %s\n", fragFileName);
        return 0;
    }

    glLinkProgram(program);
    glGetProgramiv(program, GL_LINK_STATUS, &linked);

    if (!linked) {
        glDeleteProgram(program);
        char temp[256];
        glGetProgramInfoLog(program, 256, 0, temp);
        fprintf(stderr, "Failed to link program: %s\n", temp);
        return 0;
    }

    return program;
}