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83 lines
2.4 KiB
83 lines
2.4 KiB
#include <stdio.h> |
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#define STB_HBWANG_MAX_X 500 |
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#define STB_HBWANG_MAX_Y 500 |
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#define STB_HERRINGBONE_WANG_TILE_IMPLEMENTATION |
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#include "stb_herringbone_wang_tile.h" |
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#define STB_IMAGE_IMPLEMENTATION |
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#include "stb_image.h" |
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#define STB_IMAGE_WRITE_IMPLEMENTATION |
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#include "stb_image_write.h" |
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int main(int argc, char **argv) |
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{ |
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if (argc < 5) { |
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fprintf(stderr, "Usage: herringbone_map {inputfile} {output-width} {output-height} {outputfile}\n"); |
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return 1; |
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} else { |
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char *filename = argv[1]; |
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int out_w = atoi(argv[2]); |
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int out_h = atoi(argv[3]); |
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char *outfile = argv[4]; |
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unsigned char *pixels, *out_pixels; |
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stbhw_tileset ts; |
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int w,h; |
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pixels = stbi_load(filename, &w, &h, 0, 3); |
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if (pixels == 0) { |
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fprintf(stderr, "Couldn't open input file '%s'\n", filename); |
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exit(1); |
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} |
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if (!stbhw_build_tileset_from_image(&ts, pixels, w*3, w, h)) { |
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fprintf(stderr, "Error: %s\n", stbhw_get_last_error()); |
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return 1; |
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} |
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free(pixels); |
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#ifdef DEBUG_OUTPUT |
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{ |
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int i,j,k; |
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// add blue borders to top-left edges of the tiles |
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int hstride = (ts.short_side_len*2)*3; |
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int vstride = (ts.short_side_len )*3; |
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for (i=0; i < ts.num_h_tiles; ++i) { |
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unsigned char *pix = ts.h_tiles[i]->pixels; |
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for (j=0; j < ts.short_side_len*2; ++j) |
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for (k=0; k < 3; ++k) |
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pix[j*3+k] = (pix[j*3+k]*0.5+100+k*75)/1.5; |
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for (j=1; j < ts.short_side_len; ++j) |
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for (k=0; k < 3; ++k) |
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pix[j*hstride+k] = (pix[j*hstride+k]*0.5+100+k*75)/1.5; |
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} |
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for (i=0; i < ts.num_v_tiles; ++i) { |
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unsigned char *pix = ts.v_tiles[i]->pixels; |
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for (j=0; j < ts.short_side_len; ++j) |
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for (k=0; k < 3; ++k) |
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pix[j*3+k] = (pix[j*3+k]*0.5+100+k*75)/1.5; |
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for (j=1; j < ts.short_side_len*2; ++j) |
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for (k=0; k < 3; ++k) |
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pix[j*vstride+k] = (pix[j*vstride+k]*0.5+100+k*75)/1.5; |
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} |
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} |
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#endif |
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out_pixels = malloc(out_w * out_h * 3); |
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if (!stbhw_generate_image(&ts, NULL, out_pixels, out_w*3, out_w, out_h)) { |
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fprintf(stderr, "Error: %s\n", stbhw_get_last_error()); |
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return 1; |
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} |
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stbi_write_png(argv[4], out_w, out_h, 3, out_pixels, out_w*3); |
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free(out_pixels); |
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stbhw_free_tileset(&ts); |
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return 0; |
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} |
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} |