diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Makefile | 12 | ||||
| -rw-r--r-- | main.c | 57 |
3 files changed, 64 insertions, 6 deletions
@@ -1,2 +1,3 @@ /kd-forest *.png +*.mkv @@ -23,7 +23,17 @@ kd-forest.png: kd-forest image: kd-forest.png +kd-forest.mkv: kd-forest + $(RM) kd-forest.mkv + $(RM) -r frames + mkdir -p frames + ./kd-forest -b 20 -s -c Lab -a -o frames + ffmpeg -r 60 -i frames/%04d.png -c:v libx264 -preset veryslow -qp 0 kd-forest.mkv + +anim: kd-forest.mkv + clean: $(RM) kd-forest + $(RM) -r frames -.PHONY: image clean +.PHONY: image anim clean @@ -9,6 +9,8 @@ * the COPYING file or http://www.wtfpl.net/ for more details. * *********************************************************************/ +#define _POSIX_C_SOURCE 200809L + #include "kd-forest.h" #include "util.h" #include "color.h" @@ -43,6 +45,7 @@ typedef struct { unsigned int bit_depth; mode_t mode; color_space_t color_space; + bool animate; const char *filename; bool help; } options_t; @@ -168,15 +171,19 @@ print_usage(FILE *file, const char *command) fprintf(file, " $ %s [-b|--bit-depth DEPTH]\n", command); fprintf(file, " %s [-s|--hue-sort] [-r|--random]\n", whitespace); fprintf(file, " %s [-c|--color-space RGB|Lab|Luv]\n", whitespace); + fprintf(file, " %s [-a|--animate]\n", whitespace); fprintf(file, " %s [-o|--output PATH]\n", whitespace); fprintf(file, " %s [-h|--help]\n", whitespace); fprintf(file, "\n"); - fprintf(file, " -b, --bit-depth DEPTH: Use all DEPTH-bit colors (default: 24)\n"); + fprintf(file, " -b, --bit-depth DEPTH: Use all DEPTH-bit colors (default: 24)\n\n"); fprintf(file, " -s, --hue-sort: Sort colors by hue first (default)\n"); - fprintf(file, " -r, --random: Randomize colors first\n"); + fprintf(file, " -r, --random: Randomize colors first\n\n"); fprintf(file, " -c, --color-space RGB|Lab|Luv:\n"); - fprintf(file, " Use the given color space (default: Lab)\n"); + fprintf(file, " Use the given color space (default: Lab)\n\n"); + fprintf(file, " -a, --animate: Generate frames of an animation\n\n"); fprintf(file, " -o, --output PATH: Output a PNG file at PATH (default: kd-forest.png)\n"); + fprintf(file, " If -a/--animate is specified, this is treated as a\n"); + fprintf(file, " directory which will hold many frames\n\n"); fprintf(file, " -h, --help: Show this message\n"); } @@ -187,7 +194,8 @@ parse_options(options_t *options, int argc, char *argv[]) options->bit_depth = 24; options->mode = MODE_HUE_SORT; options->color_space = COLOR_SPACE_LAB; - options->filename = "kd-forest.png"; + options->animate = false; + options->filename = NULL; options->help = false; bool result = true; @@ -207,6 +215,8 @@ parse_options(options_t *options, int argc, char *argv[]) options->mode = MODE_HUE_SORT; } else if (parse_arg(argc, argv, "-r", "--random", NULL, &i, &error)) { options->mode = MODE_RANDOM; + } else if (parse_arg(argc, argv, "-a", "--animate", NULL, &i, &error)) { + options->animate = true; } else if (parse_arg(argc, argv, "-o", "--output", &value, &i, &error)) { options->filename = value; } else if (parse_arg(argc, argv, "-c", "--color-space", &value, &i, &error)) { @@ -231,6 +241,11 @@ parse_options(options_t *options, int argc, char *argv[]) } } + // Default filename depends on -a flag + if (!options->filename) { + options->filename = options->animate ? "frames" : "kd-forest.png"; + } + return result; } @@ -318,7 +333,10 @@ static void generate_image(const state_t *state) { generate_bitmap(state); - write_png(state, state->options->filename); + + if (!state->options->animate) { + write_png(state, state->options->filename); + } } static void @@ -440,6 +458,10 @@ generate_bitmap(const state_t *state) kd_forest_t kdf; kdf_init(&kdf); + bool animate = state->options->animate; + unsigned int frame = 0; + char filename[strlen(state->options->filename) + 10]; + size_t max_size = 0; // Do multiple passes to get rid of artifacts in HUE_SORT mode @@ -449,6 +471,12 @@ generate_bitmap(const state_t *state) for (unsigned int j = stripe/2 - 1; j < state->size; j += stripe, ++progress) { if (progress%state->width == 0) { + if (animate) { + sprintf(filename, "%s/%04u.png", state->options->filename, frame); + write_png(state, filename); + ++frame; + } + print_progress("%.2f%%\t| boundary size: %zu\t| max boundary size: %zu", 100.0*progress/state->size, kdf.size, max_size); } @@ -490,6 +518,25 @@ generate_bitmap(const state_t *state) } } + if (animate) { +#if __unix__ + sprintf(filename, "%s/last.png", state->options->filename); + write_png(state, filename); + + for (int i = 0; i < 120; ++i) { + sprintf(filename, "%s/%04u.png", state->options->filename, frame + i); + if (symlink("last.png", filename) != 0) { + abort(); + } + } +#else + for (int i = 0; i < 120; ++i) { + sprintf(filename, "%s/%04u.png", state->options->filename, frame + i); + write_png(state, filename); + } +#endif + } + print_progress("%.2f%%\t| boundary size: 0\t| max boundary size: %zu\n", 100.0, max_size); |