float gain_theta = 0.0f, gain_rad = 0.0f, gain_v = 0.25f;
float saturation = 1.0f;
-float lift_r = 0.0f, lift_g = 0.0f, lift_b = 0.0f;
-float gamma_r = 1.0f, gamma_g = 1.0f, gamma_b = 1.0f;
-float gain_r = 1.0f, gain_g = 1.0f, gain_b = 1.0f;
-
-void update_hsv()
+void update_hsv(Effect *lift_gamma_gain_effect, Effect *saturation_effect)
{
- hsv2rgb(lift_theta, lift_rad, lift_v, &lift_r, &lift_g, &lift_b);
- hsv2rgb(gamma_theta, gamma_rad, gamma_v * 2.0f, &gamma_r, &gamma_g, &gamma_b);
- hsv2rgb(gain_theta, gain_rad, gain_v * 4.0f, &gain_r, &gain_g, &gain_b);
+ RGBTriplet lift(0.0f, 0.0f, 0.0f);
+ RGBTriplet gamma(1.0f, 1.0f, 1.0f);
+ RGBTriplet gain(1.0f, 1.0f, 1.0f);
+
+ hsv2rgb(lift_theta, lift_rad, lift_v, &lift.r, &lift.g, &lift.b);
+ hsv2rgb(gamma_theta, gamma_rad, gamma_v * 2.0f, &gamma.r, &gamma.g, &gamma.b);
+ hsv2rgb(gain_theta, gain_rad, gain_v * 4.0f, &gain.r, &gain.g, &gain.b);
+
+ bool ok = lift_gamma_gain_effect->set_vec3("lift", (float *)&lift);
+ ok = ok && lift_gamma_gain_effect->set_vec3("gamma", (float *)&gamma);
+ ok = ok && lift_gamma_gain_effect->set_vec3("gain", (float *)&gain);
+ assert(ok);
if (saturation < 0.0) {
saturation = 0.0;
}
-
- printf("lift: %f %f %f\n", lift_r, lift_g, lift_b);
- printf("gamma: %f %f %f\n", gamma_r, gamma_g, gamma_b);
- printf("gain: %f %f %f\n", gain_r, gain_g, gain_b);
- printf("saturation: %f\n", saturation);
- printf("\n");
+ ok = saturation_effect->set_float("saturation", saturation);
+ assert(ok);
}
void mouse(int x, int y)
} else if (yf >= 0.6f && yf < 0.62f && xf < 0.2f) {
saturation = (xf / 0.2f) * 4.0f;
}
-
- update_hsv();
}
unsigned char *load_image(const char *filename, unsigned *w, unsigned *h)
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();
glBufferData(GL_PIXEL_PACK_BUFFER_ARB, WIDTH * HEIGHT * 4, NULL, GL_STREAM_READ);
make_hsv_wheel_texture();
- update_hsv();
-
- 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;
++frame;
+ 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));