1 #include <stdio.h>

2 #include <stdlib.h>

3 #include <string.h>

4 #include <imago2.h>

5

6 int save_image15(unsigned int *img, int x, int y, const char *fname, const char *array_name);

7

8 int main(int argc, char **argv)

9 {

10 int i;

11

12 if(argc < 2) {

13 fprintf(stderr, "not enough arguments\n");

14 return -1;

15 }

16

17 for(i=1; i<argc; i++) {

18 char fname[512], *cptr;

19 int x, y;

20 unsigned int *img = img_load_pixels(argv[i], &x, &y, IMG_FMT_RGBA32);

21 if(!img) continue;

22

23 strcpy(fname, argv[i]);

24 cptr = strrchr(fname, '.');

25 if(cptr) {

26 strcpy(cptr, ".c");

27 } else {

28 cptr = fname + strlen(fname);

29 strcpy(cptr, ".c");

30 }

31

32 if(save_image15(img, x, y, fname, "img") == -1) {

33 fprintf(stderr, "could not save as %s\n", fname);

34 }

35

36 img_free_pixels(img);

37 }

38 return 0;

39 }

40

41 #define GET_R(pixel) (((pixel) >> 16) & 0xff)

42 #define GET_G(pixel) (((pixel) >> 8) & 0xff)

43 #define GET_B(pixel) (((pixel) >> 0) & 0xff)

44

45 #define PACK_COLOR15(r, g, b) ((((r) & 0x1f) << 10) | (((g) & 0x1f) << 5) | ((b) & 0x1f))

46

47 int save_image15(unsigned int *img, int x, int y, const char *fname, const char *array_name)

48 {

49 int i, j;

50 FILE *fp;

51

52 if(!(fp = fopen(fname, "w"))) {

53 return -1;

54 }

55

56 fprintf(fp, "\nconst unsigned short %s[] = {\n", array_name);

57

58 for(j=0; j<y; j++) {

59 fprintf(fp, "\t");

60 for(i=0; i<x; i++) {

61 unsigned short r = GET_R(*img) >> 3;

62 unsigned short g = GET_G(*img) >> 3;

63 unsigned short b = GET_B(*img) >> 3;

64 unsigned short pixel15 = PACK_COLOR15(r, g, b);

65 fprintf(fp, "%u", pixel15);

66 if(i < x-1 || j < y-1) {

67 fprintf(fp, ", ");

68 }

69 img++;

70 }

71 fprintf(fp, "\n");

72 }

73

74 fprintf(fp, "};\n");

75

76 fclose(fp);

77 return 0;

78 }