X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=complex_modulate_effect.cpp;fp=complex_modulate_effect.cpp;h=656de3a3728ef0fb6006f5ba31811fac677f0fa5;hp=0000000000000000000000000000000000000000;hb=15daf781e6ce00ec37ca806a16e490d59dcb4e24;hpb=56ff92c5828a143595eeb7a1906418cc30668f9d

diff --git a/complex_modulate_effect.cpp b/complex_modulate_effect.cpp
new file mode 100644
index 0000000..656de3a
--- /dev/null
+++ b/complex_modulate_effect.cpp
@@ -0,0 +1,60 @@
+#include <epoxy/gl.h>
+
+#include "complex_modulate_effect.h"
+#include "effect_chain.h"
+#include "effect_util.h"
+#include "util.h"
+
+using namespace std;
+
+namespace movit {
+
+ComplexModulateEffect::ComplexModulateEffect()
+	: num_repeats_x(1), num_repeats_y(1)
+{
+	register_int("num_repeats_x", &num_repeats_x);
+	register_int("num_repeats_y", &num_repeats_y);
+}
+
+string ComplexModulateEffect::output_fragment_shader()
+{
+	return read_file("complex_modulate_effect.frag");
+}
+
+void ComplexModulateEffect::set_gl_state(GLuint glsl_program_num, const string &prefix, unsigned *sampler_num)
+{
+	Effect::set_gl_state(glsl_program_num, prefix, sampler_num);
+
+	float num_repeats[] = { num_repeats_x, num_repeats_y };
+	set_uniform_vec2(glsl_program_num, prefix, "num_repeats", num_repeats);
+
+	// Set the secondary input to repeat (and nearest while we're at it).
+	Node *self = chain->find_node_for_effect(this);
+	glActiveTexture(chain->get_input_sampler(self, 1));
+	check_error();
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	check_error();
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	check_error();
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	check_error();
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+	check_error();
+}
+
+void ComplexModulateEffect::inform_input_size(unsigned input_num, unsigned width, unsigned height)
+{
+	if (input_num == 0) {
+		primary_input_width = width;
+		primary_input_height = height;
+	}
+}
+
+void ComplexModulateEffect::get_output_size(unsigned *width, unsigned *height,
+                                            unsigned *virtual_width, unsigned *virtual_height) const
+{
+	*width = *virtual_width = primary_input_width;
+	*height = *virtual_height = primary_input_height;
+}
+
+}  // namespace movit