X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=slice_effect.cpp;h=50504fecbf0a4851af6c59d69fac02ad92349558;hp=3a884656108154278d3f2bfcddb87d9c2b182b73;hb=refs%2Ftags%2F1.1.1;hpb=5b6ab865efa692b25590f302c111b30680fbacdd

diff --git a/slice_effect.cpp b/slice_effect.cpp
index 3a88465..50504fe 100644
--- a/slice_effect.cpp
+++ b/slice_effect.cpp
@@ -10,9 +10,14 @@ using namespace std;
 namespace movit {
 
 SliceEffect::SliceEffect()
+	: input_slice_size(1),
+	  output_slice_size(1),
+	  offset(0),
+	  direction(VERTICAL)
 {
 	register_int("input_slice_size", &input_slice_size);
 	register_int("output_slice_size", &output_slice_size);
+	register_int("offset", &offset);
 	register_int("direction", (int *)&direction);
 }
 
@@ -55,10 +60,12 @@ void SliceEffect::set_gl_state(GLuint glsl_program_num, const string &prefix, un
 		set_uniform_float(glsl_program_num, prefix, "output_coord_to_slice_num", float(output_width) / float(output_slice_size));
 		set_uniform_float(glsl_program_num, prefix, "slice_num_to_input_coord", float(input_slice_size) / float(input_width));
 		set_uniform_float(glsl_program_num, prefix, "slice_offset_to_input_coord", float(output_slice_size) / float(input_width));
+		set_uniform_float(glsl_program_num, prefix, "offset", float(offset) / float(input_width));
 	} else {
 		set_uniform_float(glsl_program_num, prefix, "output_coord_to_slice_num", float(output_height) / float(output_slice_size));
 		set_uniform_float(glsl_program_num, prefix, "slice_num_to_input_coord", float(input_slice_size) / float(input_height));
 		set_uniform_float(glsl_program_num, prefix, "slice_offset_to_input_coord", float(output_slice_size) / float(input_height));
+		set_uniform_float(glsl_program_num, prefix, "offset", float(offset) / float(input_height));
 	}
 
 	// Normalized coordinates could potentially cause blurring of the image.