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-rw-r--r--examples/decode_gif.c211
1 files changed, 0 insertions, 211 deletions
diff --git a/examples/decode_gif.c b/examples/decode_gif.c
deleted file mode 100644
index 34d2e9d..0000000
--- a/examples/decode_gif.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * Copyright 2008 Sean Fox <dyntryx@gmail.com>
- * Copyright 2008 James Bursa <james@netsurf-browser.org>
- *
- * This file is part of NetSurf's libnsgif, http://www.netsurf-browser.org/
- * Licenced under the MIT License,
- * http://www.opensource.org/licenses/mit-license.php
- */
-
-#include <assert.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/stat.h>
-#include "../libnsgif.h"
-
-unsigned char *load_file(const char *path, size_t *data_size);
-void warning(const char *context, int code);
-void *bitmap_create(int width, int height);
-void bitmap_set_opaque(void *bitmap, bool opaque);
-bool bitmap_test_opaque(void *bitmap);
-unsigned char *bitmap_get_buffer(void *bitmap);
-void bitmap_destroy(void *bitmap);
-void bitmap_modified(void *bitmap);
-
-
-int main(int argc, char *argv[])
-{
- gif_bitmap_callback_vt bitmap_callbacks = {
- bitmap_create,
- bitmap_destroy,
- bitmap_get_buffer,
- bitmap_set_opaque,
- bitmap_test_opaque,
- bitmap_modified
- };
- gif_animation gif;
- size_t size;
- gif_result code;
- unsigned int i;
-
- if (argc != 2) {
- fprintf(stderr, "Usage: %s image.gif\n", argv[0]);
- return 1;
- }
-
- /* create our gif animation */
- gif_create(&gif, &bitmap_callbacks);
-
- /* load file into memory */
- unsigned char *data = load_file(argv[1], &size);
-
- /* begin decoding */
- do {
- code = gif_initialise(&gif, size, data);
- if (code != GIF_OK && code != GIF_WORKING) {
- warning("gif_initialise", code);
- exit(1);
- }
- } while (code != GIF_OK);
-
- printf("P3\n");
- printf("# %s\n", argv[1]);
- printf("# width %u \n", gif.width);
- printf("# height %u \n", gif.height);
- printf("# frame_count %u \n", gif.frame_count);
- printf("# frame_count_partial %u \n", gif.frame_count_partial);
- printf("# loop_count %u \n", gif.loop_count);
- printf("%u %u 256\n", gif.width, gif.height * gif.frame_count);
-
- /* decode the frames */
- for (i = 0; i != gif.frame_count; i++) {
- unsigned int row, col;
- unsigned char *image;
-
- code = gif_decode_frame(&gif, i);
- if (code != GIF_OK)
- warning("gif_decode_frame", code);
-
- printf("# frame %u:\n", i);
- image = (unsigned char *) gif.frame_image;
- for (row = 0; row != gif.height; row++) {
- for (col = 0; col != gif.width; col++) {
- size_t z = (row * gif.width + col) * 4;
- printf("%u %u %u ",
- (unsigned char) image[z],
- (unsigned char) image[z + 1],
- (unsigned char) image[z + 2]);
- }
- printf("\n");
- }
- }
-
- /* clean up */
- gif_finalise(&gif);
- free(data);
-
- return 0;
-}
-
-
-unsigned char *load_file(const char *path, size_t *data_size)
-{
- FILE *fd;
- struct stat sb;
- unsigned char *buffer;
- size_t size;
- size_t n;
-
- fd = fopen(path, "rb");
- if (!fd) {
- perror(path);
- exit(EXIT_FAILURE);
- }
-
- if (stat(path, &sb)) {
- perror(path);
- exit(EXIT_FAILURE);
- }
- size = sb.st_size;
-
- buffer = malloc(size);
- if (!buffer) {
- fprintf(stderr, "Unable to allocate %lld bytes\n",
- (long long) size);
- exit(EXIT_FAILURE);
- }
-
- n = fread(buffer, 1, size, fd);
- if (n != size) {
- perror(path);
- exit(EXIT_FAILURE);
- }
-
- fclose(fd);
-
- *data_size = size;
- return buffer;
-}
-
-
-void warning(const char *context, gif_result code)
-{
- fprintf(stderr, "%s failed: ", context);
- switch (code)
- {
- case GIF_INSUFFICIENT_FRAME_DATA:
- fprintf(stderr, "GIF_INSUFFICIENT_FRAME_DATA");
- break;
- case GIF_FRAME_DATA_ERROR:
- fprintf(stderr, "GIF_FRAME_DATA_ERROR");
- break;
- case GIF_INSUFFICIENT_DATA:
- fprintf(stderr, "GIF_INSUFFICIENT_DATA");
- break;
- case GIF_DATA_ERROR:
- fprintf(stderr, "GIF_DATA_ERROR");
- break;
- case GIF_INSUFFICIENT_MEMORY:
- fprintf(stderr, "GIF_INSUFFICIENT_MEMORY");
- break;
- default:
- fprintf(stderr, "unknown code %i", code);
- break;
- }
- fprintf(stderr, "\n");
-}
-
-
-void *bitmap_create(int width, int height)
-{
- return calloc(width * height, 4);
-}
-
-
-void bitmap_set_opaque(void *bitmap, bool opaque)
-{
- (void) opaque; /* unused */
- assert(bitmap);
-}
-
-
-bool bitmap_test_opaque(void *bitmap)
-{
- assert(bitmap);
- return false;
-}
-
-
-unsigned char *bitmap_get_buffer(void *bitmap)
-{
- assert(bitmap);
- return bitmap;
-}
-
-
-void bitmap_destroy(void *bitmap)
-{
- assert(bitmap);
- free(bitmap);
-}
-
-
-void bitmap_modified(void *bitmap)
-{
- assert(bitmap);
- return;
-}
-