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.
This commit is contained in:
A. Tombs 2016-06-06 20:25:13 +01:00 committed by Camilla Berglund
parent 407385dc72
commit d8c278bf52

View File

@ -43,6 +43,9 @@ static GLfloat gamma_value = 1.0f;
static void usage(void) static void usage(void)
{ {
printf("Usage: gamma [-h] [-f]\n"); printf("Usage: gamma [-h] [-f]\n");
printf("Options:\n");
printf(" -f create full screen window\n");
printf(" -h show this help\n");
} }
static void set_gamma(GLFWwindow* window, float value) static void set_gamma(GLFWwindow* window, float value)