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#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[] = { float(num_repeats_x), float(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
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