X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=lift_gamma_gain_effect.cpp;h=b32ed93027f265873accad9ecf94f609315555eb;hp=eef04d54a4bd2e5141159adec62eaf073267899e;hb=f328fbede6f102cf4568da6e5d7a07e29c01f357;hpb=a592c55caca0fb654bad4ec43b84c46abcee21c2;ds=sidebyside

diff --git a/lift_gamma_gain_effect.cpp b/lift_gamma_gain_effect.cpp
index eef04d5..b32ed93 100644
--- a/lift_gamma_gain_effect.cpp
+++ b/lift_gamma_gain_effect.cpp
@@ -1,3 +1,9 @@
+#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"
 
@@ -15,5 +21,22 @@ LiftGammaGainEffect::LiftGammaGainEffect()
 
 std::string LiftGammaGainEffect::output_glsl()
 {
-	return read_file("todo.glsl");
+	return read_file("lift_gamma_gain_effect.glsl");
+}
+
+void LiftGammaGainEffect::set_uniforms(GLhandleARB glsl_program_num, const std::string &prefix)
+{
+	Effect::set_uniforms(glsl_program_num, prefix);
+
+	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);
 }