float gain_theta = 0.0f, gain_rad = 0.0f, gain_v = 0.25f;
float saturation = 1.0f;
-void update_hsv(Effect *lift_gamma_gain_effect)
+void update_hsv(Effect *lift_gamma_gain_effect, Effect *saturation_effect)
{
RGBTriplet lift(0.0f, 0.0f, 0.0f);
RGBTriplet gamma(1.0f, 1.0f, 1.0f);
if (saturation < 0.0) {
saturation = 0.0;
}
+ ok = saturation_effect->set_float("saturation", saturation);
+ assert(ok);
}
void mouse(int x, int y)
inout_format.gamma_curve = GAMMA_sRGB;
chain.add_input(inout_format);
- Effect *lift_gamma_gain_effect = chain.add_effect(LIFT_GAMMA_GAIN);
+ Effect *lift_gamma_gain_effect = chain.add_effect(EFFECT_LIFT_GAMMA_GAIN);
+ Effect *saturation_effect = chain.add_effect(EFFECT_SATURATION);
chain.add_output(inout_format);
chain.finalize();
make_hsv_wheel_texture();
- int prog = glCreateProgram();
- GLhandleARB vs_obj = compile_shader(read_file("vs.glsl"), GL_VERTEX_SHADER);
- GLhandleARB fs_obj = compile_shader(read_file("fs.glsl"), GL_FRAGMENT_SHADER);
- glAttachObjectARB(prog, vs_obj);
- check_error();
- glAttachObjectARB(prog, fs_obj);
- check_error();
- glLinkProgram(prog);
- check_error();
-
- GLchar info_log[4096];
- GLsizei log_length = sizeof(info_log) - 1;
- log_length = sizeof(info_log) - 1;
- glGetProgramInfoLog(prog, log_length, &log_length, info_log);
- info_log[log_length] = 0;
- printf("link: %s\n", info_log);
-
struct timespec start, now;
int frame = 0, screenshot = 0;
clock_gettime(CLOCK_MONOTONIC, &start);
++frame;
- update_hsv(lift_gamma_gain_effect);
+ update_hsv(lift_gamma_gain_effect, saturation_effect);
chain.render_to_screen(src_img);
glReadPixels(0, 0, WIDTH, HEIGHT, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, BUFFER_OFFSET(0));