1 #include "gd.h"
2 #include "gdtest.h"
3
main()4 int main()
5 {
6 gdImagePtr src, dst;
7 int r, g, b;
8 void *p;
9 int size = 0;
10 int status = 0;
11 CuTestImageResult result = {0, 0};
12
13 src = gdImageCreate(100, 100);
14 if (src == NULL) {
15 gdTestErrorMsg("could not create src\n");
16 return 1;
17 }
18 r = gdImageColorAllocate(src, 0xFF, 0, 0);
19 g = gdImageColorAllocate(src, 0, 0xFF, 0);
20 b = gdImageColorAllocate(src, 0, 0, 0xFF);
21 gdImageFilledRectangle(src, 0, 0, 99, 99, r);
22 gdImageRectangle(src, 20, 20, 79, 79, g);
23 gdImageEllipse(src, 70, 25, 30, 20, b);
24
25 #define OUTPUT_PNG(name) do { \
26 FILE *fp = gdTestTempFp(); \
27 gdImagePng(name, fp); \
28 fclose(fp); \
29 } while (0)
30
31 OUTPUT_PNG(src);
32 p = gdImagePngPtr(src, &size);
33 if (p == NULL) {
34 status = 1;
35 gdTestErrorMsg("p is null\n");
36 goto door0;
37 }
38 if (size <= 0) {
39 status = 1;
40 gdTestErrorMsg("size is non-positive\n");
41 goto door1;
42 }
43
44 dst = gdImageCreateFromPngPtr(size, p);
45 if (dst == NULL) {
46 status = 1;
47 gdTestErrorMsg("could not create dst\n");
48 goto door1;
49 }
50 OUTPUT_PNG(dst);
51 gdTestImageDiff(src, dst, NULL, &result);
52 if (result.pixels_changed > 0) {
53 status = 1;
54 gdTestErrorMsg("pixels changed: %d\n", result.pixels_changed);
55 }
56 gdImageDestroy(dst);
57 door1:
58 gdFree(p);
59 door0:
60 gdImageDestroy(src);
61 return status;
62 }
63