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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <imago2.h>
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5
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6 int save_image15(unsigned int *img, int x, int y, const char *fname, const char *array_name);
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7
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8 int main(int argc, char **argv)
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9 {
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10 int i;
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11
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12 if(argc < 2) {
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13 fprintf(stderr, "not enough arguments\n");
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14 return -1;
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15 }
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16
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17 for(i=1; i<argc; i++) {
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18 char fname[512], *cptr;
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19 int x, y;
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20 unsigned int *img = img_load_pixels(argv[i], &x, &y, IMG_FMT_RGBA32);
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21 if(!img) continue;
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22
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23 strcpy(fname, argv[i]);
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24 cptr = strrchr(fname, '.');
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25 if(cptr) {
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26 strcpy(cptr, ".c");
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27 } else {
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28 cptr = fname + strlen(fname);
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29 strcpy(cptr, ".c");
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30 }
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31
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32 if(save_image15(img, x, y, fname, "img") == -1) {
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33 fprintf(stderr, "could not save as %s\n", fname);
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34 }
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35
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36 img_free_pixels(img);
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37 }
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38 return 0;
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39 }
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40
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41 #define GET_R(pixel) (((pixel) >> 16) & 0xff)
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42 #define GET_G(pixel) (((pixel) >> 8) & 0xff)
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43 #define GET_B(pixel) (((pixel) >> 0) & 0xff)
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44
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45 #define PACK_COLOR15(r, g, b) ((((r) & 0x1f) << 10) | (((g) & 0x1f) << 5) | ((b) & 0x1f))
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46
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47 int save_image15(unsigned int *img, int x, int y, const char *fname, const char *array_name)
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48 {
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49 int i, j;
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50 FILE *fp;
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51
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52 if(!(fp = fopen(fname, "w"))) {
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53 return -1;
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54 }
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55
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56 fprintf(fp, "\nconst unsigned short %s[] = {\n", array_name);
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57
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58 for(j=0; j<y; j++) {
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59 fprintf(fp, "\t");
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60 for(i=0; i<x; i++) {
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61 unsigned short r = GET_R(*img) >> 3;
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62 unsigned short g = GET_G(*img) >> 3;
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63 unsigned short b = GET_B(*img) >> 3;
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64 unsigned short pixel15 = PACK_COLOR15(r, g, b);
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65 fprintf(fp, "%u", pixel15);
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66 if(i < x-1 || j < y-1) {
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67 fprintf(fp, ", ");
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68 }
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69 img++;
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70 }
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71 fprintf(fp, "\n");
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72 }
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73
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74 fprintf(fp, "};\n");
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75
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76 fclose(fp);
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77 return 0;
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78 }
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