mirror of https://github.com/ZDoom/raze-gles.git
90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include "compat.h"
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#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
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#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
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#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
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#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
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typedef struct {
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char magic[8]; // 'Polymost'
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int xdim, ydim; // of image, unpadded
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int flags; // 1 = !2^x, 2 = has alpha, 4 = lzw compressed
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} texcacheheader;
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typedef struct {
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int size;
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int format;
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int xdim, ydim; // of mipmap (possibly padded)
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int border, depth;
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} texcachepicture;
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int main(int argc, char **argv)
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{
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DIR *dir;
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struct dirent *dirent;
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struct stat st;
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FILE *fp;
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texcacheheader head;
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texcachepicture mip;
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dir = opendir(".");
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while ((dirent = readdir(dir))) {
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if (stat(dirent->d_name, &st)) {
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printf("%s: failed to stat\n", dirent->d_name);
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continue;
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}
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if (!(st.st_mode&S_IFREG)) {
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printf("%s: not a regular file\n", dirent->d_name);
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continue;
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}
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fp = fopen(dirent->d_name,"rb");
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if (!fp) {
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printf("%s: failed to open\n", dirent->d_name);
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continue;
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}
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if (fread(&head, sizeof(head), 1, fp) != 1) {
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fclose(fp);
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printf("%s: failed to read header\n", dirent->d_name);
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continue;
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}
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head.xdim = B_LITTLE32(head.xdim);
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head.ydim = B_LITTLE32(head.ydim);
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head.flags = B_LITTLE32(head.flags);
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if (fread(&mip, sizeof(mip), 1, fp) != 1) {
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fclose(fp);
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printf("%s: failed to read mipmap header\n", dirent->d_name);
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continue;
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}
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mip.format = B_LITTLE32(mip.format);
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fclose(fp);
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if (memcmp(head.magic, "Polymost", 8)) {
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printf("%s: bad signature\n", dirent->d_name);
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continue;
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}
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else {
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char *format;
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char flags[4] = "", flagsc = 0;
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switch (mip.format) {
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case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: format = "RGB DXT1"; break;
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case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: format = "RGBA DXT1"; break;
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case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: format = "RGBA DXT3"; break;
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case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: format = "RGBA DXT5"; break;
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default: format = "Unknown"; break;
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}
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if (head.flags&1) flags[flagsc++] = '2';
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if (head.flags&2) flags[flagsc++] = 'A';
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if (head.flags&4) flags[flagsc++] = 'L';
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flags[flagsc++] = 0;
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printf("%s: flags=%s format=%s\n", dirent->d_name, flags, format);
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}
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}
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closedir(dir);
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return 0;
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} |