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Added gamma setting function.
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@ -35,6 +35,8 @@
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#include "getopt.h"
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#define STEP_SIZE 0.1f
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static GLfloat gamma = 1.0f;
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static void usage(void)
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@ -42,6 +44,13 @@ static void usage(void)
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printf("Usage: gammatest [-h] [-f]\n");
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}
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static void set_gamma(float value)
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{
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gamma = value;
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printf("Gamma: %f\n", gamma);
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glfwSetGamma(gamma);
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}
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static void key_callback(GLFWwindow window, int key, int action)
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{
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if (action != GLFW_PRESS)
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@ -50,20 +59,26 @@ static void key_callback(GLFWwindow window, int key, int action)
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switch (key)
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{
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case GLFW_KEY_ESCAPE:
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{
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glfwCloseWindow(window);
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break;
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}
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case GLFW_KEY_KP_ADD:
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case GLFW_KEY_Q:
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gamma += 0.1f;
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printf("Gamma: %f\n", gamma);
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glfwSetGamma(gamma);
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{
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set_gamma(gamma + STEP_SIZE);
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break;
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}
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case GLFW_KEY_KP_SUBTRACT:
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case GLFW_KEY_W:
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gamma -= 0.1f;
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printf("Gamma: %f\n", gamma);
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glfwSetGamma(gamma);
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{
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if (gamma - STEP_SIZE > 0.f)
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set_gamma(gamma - STEP_SIZE);
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break;
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}
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}
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}
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@ -124,8 +139,7 @@ int main(int argc, char** argv)
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exit(EXIT_FAILURE);
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}
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glfwSetGamma(gamma);
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printf("Gamma: %f\n", gamma);
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set_gamma(1.f);
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glfwSwapInterval(1);
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glfwSetKeyCallback(key_callback);
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