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https://github.com/webmproject/libwebp.git
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fab8f9cfcf
we associate '*' with types rather than variables Change-Id: Id93ed65272a8a88e604278693e3850649639e9b6
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
// Copyright 2017 Google Inc. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the COPYING file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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// -----------------------------------------------------------------------------
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//
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// Simple SDL-based WebP file viewer.
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// Does not support animation, just static images.
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//
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// Press 'q' to exit.
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//
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// Author: James Zern (jzern@google.com)
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#include <stdio.h>
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#ifdef HAVE_CONFIG_H
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#include "webp/config.h"
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#endif
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#if defined(WEBP_HAVE_SDL)
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#include "webp_to_sdl.h"
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#include "webp/decode.h"
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#include "imageio/imageio_util.h"
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#include "../examples/unicode.h"
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#if defined(WEBP_HAVE_JUST_SDL_H)
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#include <SDL.h>
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#else
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#include <SDL/SDL.h>
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#endif
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static void ProcessEvents(void) {
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int done = 0;
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SDL_Event event;
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while (!done && SDL_WaitEvent(&event)) {
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switch (event.type) {
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case SDL_KEYUP:
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switch (event.key.keysym.sym) {
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case SDLK_q: done = 1; break;
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default: break;
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}
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break;
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default: break;
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}
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}
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}
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int main(int argc, char* argv[]) {
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int c;
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int ok = 0;
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INIT_WARGV(argc, argv);
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for (c = 1; c < argc; ++c) {
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const char* file = NULL;
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const uint8_t* webp = NULL;
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size_t webp_size = 0;
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if (!strcmp(argv[c], "-h")) {
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printf("Usage: %s [-h] image.webp [more_files.webp...]\n", argv[0]);
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FREE_WARGV_AND_RETURN(0);
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} else {
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file = (const char*)GET_WARGV(argv, c);
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}
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if (file == NULL) continue;
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if (!ImgIoUtilReadFile(file, &webp, &webp_size)) {
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WFPRINTF(stderr, "Error opening file: %s\n", (const W_CHAR*)file);
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goto Error;
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}
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if (webp_size != (size_t)(int)webp_size) {
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free((void*)webp);
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fprintf(stderr, "File too large.\n");
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goto Error;
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}
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ok = WebpToSDL((const char*)webp, (int)webp_size);
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free((void*)webp);
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if (!ok) {
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WFPRINTF(stderr, "Error decoding file %s\n", (const W_CHAR*)file);
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goto Error;
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}
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ProcessEvents();
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}
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ok = 1;
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Error:
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SDL_Quit();
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FREE_WARGV_AND_RETURN(ok ? 0 : 1);
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}
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#else // !WEBP_HAVE_SDL
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int main(int argc, const char* argv[]) {
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fprintf(stderr, "SDL support not enabled in %s.\n", argv[0]);
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(void)argc;
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return 0;
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}
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#endif
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