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authorVincent Sanders <vince@kyllikki.org>2015-09-01 15:05:27 +0100
committerVincent Sanders <vince@kyllikki.org>2015-09-01 15:05:27 +0100
commitf2d8f433391919bc13041fe850aefb502fa6f348 (patch)
tree017f5c657746b5ecf28aad956a594e667b2c2ec2 /examples/decode_bmp.c
parenta9eb97707b3960c052d05bb85a41fdb5c9ef777c (diff)
downloadlibnsbmp-f2d8f433391919bc13041fe850aefb502fa6f348.tar.gz
libnsbmp-f2d8f433391919bc13041fe850aefb502fa6f348.tar.bz2
add decode test suite
Diffstat (limited to 'examples/decode_bmp.c')
-rw-r--r--examples/decode_bmp.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/examples/decode_bmp.c b/examples/decode_bmp.c
deleted file mode 100644
index e5dc572..0000000
--- a/examples/decode_bmp.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * Copyright 2008 Sean Fox <dyntryx@gmail.com>
- * Copyright 2008 James Bursa <james@netsurf-browser.org>
- *
- * This file is part of NetSurf's libnsbmp, 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 <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/stat.h>
-#include "../include/libnsbmp.h"
-
-#define BYTES_PER_PIXEL 4
-#define TRANSPARENT_COLOR 0xffffffff
-
-unsigned char *load_file(const char *path, size_t *data_size);
-void warning(const char *context, bmp_result code);
-void *bitmap_create(int width, int height, unsigned int state);
-unsigned char *bitmap_get_buffer(void *bitmap);
-size_t bitmap_get_bpp(void *bitmap);
-void bitmap_destroy(void *bitmap);
-
-
-int main(int argc, char *argv[])
-{
- bmp_bitmap_callback_vt bitmap_callbacks = {
- bitmap_create,
- bitmap_destroy,
- bitmap_get_buffer,
- bitmap_get_bpp
- };
- bmp_result code;
- bmp_image bmp;
- size_t size;
- unsigned short res = 0;
-
- if (argc != 2) {
- fprintf(stderr, "Usage: %s image.bmp\n", argv[0]);
- return 1;
- }
-
- /* create our bmp image */
- bmp_create(&bmp, &bitmap_callbacks);
-
- /* load file into memory */
- unsigned char *data = load_file(argv[1], &size);
-
- /* analyse the BMP */
- code = bmp_analyse(&bmp, size, data);
- if (code != BMP_OK) {
- warning("bmp_analyse", code);
- res = 1;
- goto cleanup;
- }
-
- /* decode the image */
- code = bmp_decode(&bmp);
- /* code = bmp_decode_trans(&bmp, TRANSPARENT_COLOR); */
- if (code != BMP_OK) {
- warning("bmp_decode", code);
- /* allow partially decoded images */
- if (code != BMP_INSUFFICIENT_DATA) {
- res = 1;
- goto cleanup;
- }
- }
-
- printf("P3\n");
- printf("# %s\n", argv[1]);
- printf("# width %u \n", bmp.width);
- printf("# height %u \n", bmp.height);
- printf("%u %u 256\n", bmp.width, bmp.height);
-
- {
- uint16_t row, col;
- uint8_t *image;
- image = (uint8_t *) bmp.bitmap;
- for (row = 0; row != bmp.height; row++) {
- for (col = 0; col != bmp.width; col++) {
- size_t z = (row * bmp.width + col) * BYTES_PER_PIXEL;
- printf("%u %u %u ", image[z],
- image[z + 1],
- image[z + 2]);
- }
- printf("\n");
- }
- }
-
-cleanup:
- /* clean up */
- bmp_finalise(&bmp);
- free(data);
-
- return res;
-}
-
-
-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, bmp_result code)
-{
- fprintf(stderr, "%s failed: ", context);
- switch (code) {
- case BMP_INSUFFICIENT_MEMORY:
- fprintf(stderr, "BMP_INSUFFICIENT_MEMORY");
- break;
- case BMP_INSUFFICIENT_DATA:
- fprintf(stderr, "BMP_INSUFFICIENT_DATA");
- break;
- case BMP_DATA_ERROR:
- fprintf(stderr, "BMP_DATA_ERROR");
- break;
- default:
- fprintf(stderr, "unknown code %i", code);
- break;
- }
- fprintf(stderr, "\n");
-}
-
-
-void *bitmap_create(int width, int height, unsigned int state)
-{
- (void) state; /* unused */
- return calloc(width * height, BYTES_PER_PIXEL);
-}
-
-
-unsigned char *bitmap_get_buffer(void *bitmap)
-{
- assert(bitmap);
- return bitmap;
-}
-
-
-size_t bitmap_get_bpp(void *bitmap)
-{
- (void) bitmap; /* unused */
- return BYTES_PER_PIXEL;
-}
-
-
-void bitmap_destroy(void *bitmap)
-{
- assert(bitmap);
- free(bitmap);
-}
-