X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=lift_gamma_gain_effect.cpp;h=2dc827885cb46a8a005427c18a9e247087abd781;hp=5c83854339f0981c52ff3dbe2ee365d75096ad2d;hb=0dc1dfe6444a700ebd2c9f006cba000b90c3a7b0;hpb=a88f299483ffe5068cd2828513078b9103325da8

diff --git a/lift_gamma_gain_effect.cpp b/lift_gamma_gain_effect.cpp
index 5c83854..2dc8278 100644
--- a/lift_gamma_gain_effect.cpp
+++ b/lift_gamma_gain_effect.cpp
@@ -1,13 +1,40 @@
+#define GL_GLEXT_PROTOTYPES 1
+
+#include <math.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
+
 #include "lift_gamma_gain_effect.h"
+#include "util.h"
 
 LiftGammaGainEffect::LiftGammaGainEffect()
 	: lift(0.0f, 0.0f, 0.0f),
 	  gamma(1.0f, 1.0f, 1.0f),
-	  gain(1.0f, 1.0f, 1.0f),
-	  saturation(1.0f)
+	  gain(1.0f, 1.0f, 1.0f)
 {
 	register_vec3("lift", (float *)&lift);
 	register_vec3("gamma", (float *)&gamma);
 	register_vec3("gain", (float *)&gain);
-	register_float("saturation", &saturation);
+}
+
+std::string LiftGammaGainEffect::output_fragment_shader()
+{
+	return read_file("lift_gamma_gain_effect.frag");
+}
+
+void LiftGammaGainEffect::set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num)
+{
+	Effect::set_gl_state(glsl_program_num, prefix, sampler_num);
+
+	RGBTriplet gain_pow_inv_gamma(
+		pow(gain.r, 1.0f / gamma.r),
+		pow(gain.g, 1.0f / gamma.g),
+		pow(gain.b, 1.0f / gamma.b));
+	set_uniform_vec3(glsl_program_num, prefix, "gain_pow_inv_gamma", (float *)&gain_pow_inv_gamma);
+
+	RGBTriplet inv_gamma_22(
+		2.2f / gamma.r,
+		2.2f / gamma.g,
+		2.2f / gamma.b);
+	set_uniform_vec3(glsl_program_num, prefix, "inv_gamma_22", (float *)&inv_gamma_22);
 }