174 lines
6 KiB
C
174 lines
6 KiB
C
#define STBI_WINDOWS_UTF8
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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#define STB_DEFINE
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#include "stb.h"
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//#define PNGSUITE_PRIMARY
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#if 0
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void test_ycbcr(void)
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{
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STBI_SIMD_ALIGN(unsigned char, y[256]);
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STBI_SIMD_ALIGN(unsigned char, cb[256]);
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STBI_SIMD_ALIGN(unsigned char, cr[256]);
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STBI_SIMD_ALIGN(unsigned char, out1[256][4]);
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STBI_SIMD_ALIGN(unsigned char, out2[256][4]);
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int i,j,k;
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int count = 0, bigcount=0, total=0;
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for (i=0; i < 256; ++i) {
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for (j=0; j < 256; ++j) {
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for (k=0; k < 256; ++k) {
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y [k] = k;
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cb[k] = j;
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cr[k] = i;
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}
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stbi__YCbCr_to_RGB_row(out1[0], y, cb, cr, 256, 4);
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stbi__YCbCr_to_RGB_sse2(out2[0], y, cb, cr, 256, 4);
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for (k=0; k < 256; ++k) {
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// inaccurate proxy for values outside of RGB cube
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if (out1[k][0] == 0 || out1[k][1] == 0 || out1[k][2] == 0 || out1[k][0] == 255 || out1[k][1] == 255 || out1[k][2] == 255)
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continue;
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++total;
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if (out1[k][0] != out2[k][0] || out1[k][1] != out2[k][1] || out1[k][2] != out2[k][2]) {
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int dist1 = abs(out1[k][0] - out2[k][0]);
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int dist2 = abs(out1[k][1] - out2[k][1]);
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int dist3 = abs(out1[k][2] - out2[k][2]);
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++count;
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if (out1[k][1] > out2[k][1])
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++bigcount;
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}
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}
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}
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printf("So far: %d (%d big) of %d\n", count, bigcount, total);
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}
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printf("Final: %d (%d big) of %d\n", count, bigcount, total);
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}
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#endif
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float hdr_data[200][200][3];
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void dummy_write(void *context, void *data, int len)
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{
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static char dummy[1024];
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if (len > 1024) len = 1024;
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memcpy(dummy, data, len);
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}
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extern void image_write_test(void);
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int main(int argc, char **argv)
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{
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int w,h;
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//test_ycbcr();
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image_write_test();
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#if 0
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// test hdr asserts
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for (h=0; h < 100; h += 2)
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for (w=0; w < 200; ++w)
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hdr_data[h][w][0] = (float) rand(),
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hdr_data[h][w][1] = (float) rand(),
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hdr_data[h][w][2] = (float) rand();
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stbi_write_hdr("output/test.hdr", 200,200,3,hdr_data[0][0]);
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#endif
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if (argc > 1) {
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int i, n;
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for (i=1; i < argc; ++i) {
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int res;
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int w2,h2,n2;
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unsigned char *data;
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printf("%s\n", argv[i]);
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res = stbi_info(argv[i], &w2, &h2, &n2);
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data = stbi_load(argv[i], &w, &h, &n, 0); if (data) free(data); else printf("Failed &n\n");
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data = stbi_load(argv[i], &w, &h, &n, 4); if (data) free(data); else printf("Failed &n\n");
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data = stbi_load(argv[i], &w, &h, 0, 1); if (data) free(data); else printf("Failed 1\n");
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data = stbi_load(argv[i], &w, &h, 0, 2); if (data) free(data); else printf("Failed 2\n");
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data = stbi_load(argv[i], &w, &h, 0, 3); if (data) free(data); else printf("Failed 3\n");
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data = stbi_load(argv[i], &w, &h, &n, 4);
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assert(data);
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assert(w == w2 && h == h2 && n == n2);
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assert(res);
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if (data) {
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char fname[512];
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stb_splitpath(fname, argv[i], STB_FILE);
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stbi_write_png(stb_sprintf("output/%s.png", fname), w, h, 4, data, w*4);
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stbi_write_bmp(stb_sprintf("output/%s.bmp", fname), w, h, 4, data);
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stbi_write_tga(stb_sprintf("output/%s.tga", fname), w, h, 4, data);
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stbi_write_png_to_func(dummy_write,0, w, h, 4, data, w*4);
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stbi_write_bmp_to_func(dummy_write,0, w, h, 4, data);
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stbi_write_tga_to_func(dummy_write,0, w, h, 4, data);
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free(data);
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} else
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printf("FAILED 4\n");
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}
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} else {
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int i;
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#ifdef PNGSUITE_PRIMARY
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char **files = stb_readdir_files("pngsuite/primary");
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#else
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char **files = stb_readdir_files("images");
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#endif
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for (i=0; i < stb_arr_len(files); ++i) {
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int n;
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char **failed = NULL;
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unsigned char *data;
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printf(".");
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//printf("%s\n", files[i]);
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data = stbi_load(files[i], &w, &h, &n, 0); if (data) free(data); else stb_arr_push(failed, "&n");
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data = stbi_load(files[i], &w, &h, 0, 1); if (data) free(data); else stb_arr_push(failed, "1");
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data = stbi_load(files[i], &w, &h, 0, 2); if (data) free(data); else stb_arr_push(failed, "2");
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data = stbi_load(files[i], &w, &h, 0, 3); if (data) free(data); else stb_arr_push(failed, "3");
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data = stbi_load(files[i], &w, &h, 0, 4); if (data) ; else stb_arr_push(failed, "4");
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if (data) {
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char fname[512];
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#ifdef PNGSUITE_PRIMARY
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int w2,h2;
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unsigned char *data2;
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stb_splitpath(fname, files[i], STB_FILE_EXT);
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data2 = stbi_load(stb_sprintf("pngsuite/primary_check/%s", fname), &w2, &h2, 0, 4);
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if (!data2)
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printf("FAILED: couldn't load 'pngsuite/primary_check/%s\n", fname);
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else {
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if (w != w2 || h != w2 || 0 != memcmp(data, data2, w*h*4)) {
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int x,y,c;
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if (w == w2 && h == h2)
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for (y=0; y < h; ++y)
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for (x=0; x < w; ++x)
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for (c=0; c < 4; ++c)
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assert(data[y*w*4+x*4+c] == data2[y*w*4+x*4+c]);
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printf("FAILED: %s loaded but didn't match PRIMARY_check 32-bit version\n", files[i]);
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}
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free(data2);
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}
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#else
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stb_splitpath(fname, files[i], STB_FILE);
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stbi_write_png(stb_sprintf("output/%s.png", fname), w, h, 4, data, w*4);
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#endif
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free(data);
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}
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if (failed) {
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int j;
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printf("FAILED: ");
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for (j=0; j < stb_arr_len(failed); ++j)
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printf("%s ", failed[j]);
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printf(" -- %s\n", files[i]);
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}
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}
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printf("Tested %d files.\n", i);
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}
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return 0;
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}
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