Add a inverse flag to LumaMixEffect.

[movit] / luma_mix_effect.cpp

diff --git a/luma_mix_effect.cpp b/luma_mix_effect.cpp
index e34d87f167376cfae61f43f854845995ab3da000..92c599e06993830de78b92a3c826cc13d164e4a3 100644 (file)
--- a/luma_mix_effect.cpp
+++ b/luma_mix_effect.cpp
@@ -7,10 +7,11 @@ using namespace std;
 namespace movit {
 
 LumaMixEffect::LumaMixEffect()
-       : transition_width(1.0f), progress(0.5f)
+       : transition_width(1.0f), progress(0.5f), inverse(0)
 {
        register_float("transition_width", &transition_width);
        register_float("progress", &progress);
+       register_int("inverse", &inverse);
 }
 
 string LumaMixEffect::output_fragment_shader()
@@ -22,6 +23,7 @@ void LumaMixEffect::set_gl_state(GLuint glsl_program_num, const string &prefix,
 {
        Effect::set_gl_state(glsl_program_num, prefix, sampler_num);
        set_uniform_float(glsl_program_num, prefix, "progress_mul_w_plus_one", progress * (transition_width + 1.0));
+       set_uniform_int(glsl_program_num, prefix, "inverse", inverse);
 }
 
 }  // namespace movit