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Add explanation of parameters to gamma test
Unlike similar test programs (e.g. tearing.c), the gamma test does not explain the meanings of the optional parameters `h` and `f`. This patch adds these explanations to the usage text. Closes #775.
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@ -43,6 +43,9 @@ static GLfloat gamma_value = 1.0f;
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static void usage(void)
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{
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printf("Usage: gamma [-h] [-f]\n");
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printf("Options:\n");
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printf(" -f create full screen window\n");
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printf(" -h show this help\n");
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}
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static void set_gamma(GLFWwindow* window, float value)
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