diff options
Diffstat (limited to 'utl/rearrange.c')
-rw-r--r-- | utl/rearrange.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/utl/rearrange.c b/utl/rearrange.c new file mode 100644 index 0000000..1d82029 --- /dev/null +++ b/utl/rearrange.c @@ -0,0 +1,73 @@ +#include <stdio.h> +#include <libplum.h> + +int main(int const argc, char *const *const argv) { + if (argc < 3) { + fprintf(stderr, "usage: %s <OUT.png> <IN.png>...\n", argv[0]); + return 1; + } + unsigned error; + struct plum_image *outimage = plum_new_image(); + outimage->type = PLUM_IMAGE_PNG; + outimage->color_format = PLUM_COLOR_32; + outimage->frames = 1; + outimage->width = 128; + if (argc == 3) { + struct plum_image *inimage = plum_load_image(argv[2], PLUM_MODE_FILENAME, PLUM_COLOR_32, &error); + if (inimage == NULL) { + printf("%s: read error (%s)\n", argv[2], plum_get_error_text(error)); + return 1; + } + outimage->height = inimage->height / 4; + outimage->data = plum_malloc(outimage, plum_pixel_buffer_size(outimage)); + for (int i = 0; i < inimage->height / 32; i++) { + int const toy = i * outimage->width * 8; + for (int j = 0; j < 16; j++) { + int const tox = j * 8; + int const tiy = ((int [16]) {0, 0, 1, 3, 3, 3, 0, 2, 0, 2, 1, 1, 1, 3, 2, 2}[j]) * 8 + inimage->width * 32 * i; + int const tix = ((int [16]) {0, 3, 0, 3, 0, 1, 2, 3, 1, 0, 3, 2, 1, 2, 1, 2}[j]) * 8 * inimage->width; + for (int py = 0; py < 8; py++) { + int const poy = py * outimage->width; + int const piy = py * inimage->width; + for (int px = 0; px < 8; px++) { + outimage->data32[toy + tox + poy + px] = inimage->data32[tiy + tix + piy + px]; + } + } + } + } + plum_destroy_image(inimage); + + } else { + outimage->height = (argc - 2) * 8; + outimage->data = plum_malloc(outimage, plum_pixel_buffer_size(outimage)); + + for (int i = 2; i < argc; i++) { + struct plum_image *inimage = plum_load_image(argv[i], PLUM_MODE_FILENAME, PLUM_COLOR_32, &error); + if (inimage == NULL) { + printf("%s: read error (%s)\n", argv[i], plum_get_error_text(error)); + return 1; + } + int const toy = (i - 2) * outimage->width * 8; + for (int j = 0; j < 16; j++) { + int const tox = j * 8; + int const tiy = ((int [16]) {0, 0, 1, 3, 3, 3, 0, 2, 0, 2, 1, 1, 1, 3, 2, 2}[j]) * 8; + int const tix = ((int [16]) {0, 3, 0, 3, 0, 1, 2, 3, 1, 0, 3, 2, 1, 2, 1, 2}[j]) * 8 * inimage->width; + for (int py = 0; py < 8; py++) { + int const poy = py * outimage->width; + int const piy = py * inimage->width; + for (int px = 0; px < 8; px++) { + outimage->data32[toy + tox + poy + px] = inimage->data32[tiy + tix + piy + px]; + } + } + } + plum_destroy_image(inimage); + } + } + plum_store_image(outimage, argv[1], PLUM_MODE_FILENAME, &error); + if (error) { + printf("%s: write error (%s)\n", argv[1], plum_get_error_text(error)); + return 1; + } + plum_destroy_image(outimage); + return 0; +} |