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6f7d0cb1c3
This makes breaking changes to add underscores to many non-standard function names provided by the c library. MODE=tiny is now tinier and we now use smaller locks that are better for tiny apps in this mode. Some headers have been renamed to be in the same folder as the build package, so it'll be easier to know which build dependency is needed. Certain old misguided interfaces have been removed. Intel intrinsics headers are now listed in libc/isystem (but not in the amalgamation) to help further improve open source compatibility. Header complexity has also been reduced. Lastly, more shell scripts are now available.
106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/dce.h"
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#include "libc/log/log.h"
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#include "libc/mem/gc.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/x/x.h"
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#include "libc/x/xasprintf.h"
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#include "net/http/escape.h"
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#include "net/http/http.h"
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#include "third_party/getopt/getopt.h"
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#include "third_party/stb/stb_image.h"
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#define USAGE \
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" [FLAGS] IMG...\n\
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Utility for printing HTML <img> tags.\n\
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\n\
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FLAGS\n\
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\n\
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-h Help\n\
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-a Wrap with <a> tag\n\
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-u Embed data:base64 URI\n"
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int scale;
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bool linktag;
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bool datauri;
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bool sizeonly;
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void PrintUsage(int rc, FILE *f) {
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fputs("Usage: ", f);
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fputs(program_invocation_name, f);
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fputs(USAGE, f);
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exit(rc);
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}
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void PrintImg(const char *path) {
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size_t n;
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int opt, i, yn, xn, cn, w, h;
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void *img, *pix, *src, *mime;
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if (!(img = _gc(xslurp(path, &n)))) exit(2);
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if (!(pix = _gc(stbi_load_from_memory(img, n, &xn, &yn, &cn, 0)))) exit(3);
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if (linktag) {
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printf("<a href=\"%s\"\n >", path);
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}
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src = path;
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if (datauri) {
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src = xasprintf("data:%s;base64,%s", FindContentType(path, -1),
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_gc(EncodeBase64(img, n, &n)));
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}
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w = (xn + (1 << scale) / 2) >> scale;
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h = (yn + (1 << scale) / 2) >> scale;
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if (sizeonly) {
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printf("width=\"%d\" height=\"%d\"", w, h);
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} else {
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printf("<img width=\"%d\" height=\"%d\" alt=\"[%s]\"\n src=\"%s\">", w,
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h, path, src);
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}
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if (linktag) {
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printf("</a>");
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}
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printf("\n");
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}
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int main(int argc, char *argv[]) {
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if (!NoDebug()) ShowCrashReports();
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int i;
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while ((i = getopt(argc, argv, "?huas01234")) != -1) {
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switch (i) {
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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scale = i - '0';
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break;
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case 's':
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sizeonly = true;
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break;
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case 'a':
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linktag = true;
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break;
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case 'u':
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datauri = true;
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break;
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case '?':
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case 'h':
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PrintUsage(0, stdout);
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default:
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PrintUsage(1, stderr);
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}
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}
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if (optind == argc) {
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PrintUsage(1, stderr);
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}
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for (i = optind; i < argc; ++i) {
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PrintImg(argv[i]);
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}
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}
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