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#include "tests.h"
#include <libplacebo/dither.h>
#include <libplacebo/shaders/dithering.h>
#define SHIFT 4
#define SIZE (1 << SHIFT)
float data[SIZE][SIZE];
int main()
{
printf("Ordered dither matrix:\n");
pl_generate_bayer_matrix(&data[0][0], SIZE);
for (int y = 0; y < SIZE; y++) {
for (int x = 0; x < SIZE; x++)
printf(" %3d", (int)(data[y][x] * SIZE * SIZE));
printf("\n");
}
printf("Blue noise dither matrix:\n");
pl_generate_blue_noise(&data[0][0], SHIFT);
for (int y = 0; y < SIZE; y++) {
for (int x = 0; x < SIZE; x++)
printf(" %3d", (int)(data[y][x] * SIZE * SIZE));
printf("\n");
}
// Generate an example of a dither shader
pl_log log = pl_test_logger();
pl_shader sh = pl_shader_alloc(log, NULL);
pl_shader_obj obj = NULL;
pl_shader_dither(sh, 8, &obj, NULL);
const struct pl_shader_res *res = pl_shader_finalize(sh);
REQUIRE(res);
printf("Generated dither shader:\n%s\n", res->glsl);
pl_shader_obj_destroy(&obj);
pl_shader_free(&sh);
pl_log_destroy(&log);
}
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