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-rw-r--r--tools/shift_img.c165
1 files changed, 0 insertions, 165 deletions
diff --git a/tools/shift_img.c b/tools/shift_img.c
deleted file mode 100644
index bd347b79f..000000000
--- a/tools/shift_img.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Guillaume Cottenceau (gc at mandrakesoft.com)
- *
- * Copyright 2002 Mandrakesoft
- *
- * This software may be freely redistributed under the terms of the GNU
- * public license.
- *
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdarg.h>
-
-#define PNG_DEBUG 3
-#include <png.h>
-
-void abort_(const char * s, ...)
-{
- va_list args;
- va_start(args, s);
- vfprintf(stderr, s, args);
- fprintf(stderr, "\n");
- va_end(args);
- abort();
-}
-
-int x, y;
-
-int width, height;
-png_byte color_type;
-png_byte bit_depth;
-
-png_structp png_ptr;
-png_infop info_ptr;
-int number_of_passes;
-png_bytep * row_pointers;
-
-void read_png_file(char* file_name)
-{
- char header[8]; // 8 is the maximum size that can be checked
-
- /* open file and test for it being a png */
- FILE *fp = fopen(file_name, "rb");
- if (!fp)
- abort_("[read_png_file] File %s could not be opened for reading", file_name);
- fread(header, 1, 8, fp);
- if (png_sig_cmp(header, 0, 8))
- abort_("[read_png_file] File %s is not recognized as a PNG file", file_name);
-
-
- /* initialize stuff */
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-
- if (!png_ptr)
- abort_("[read_png_file] png_create_read_struct failed");
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr)
- abort_("[read_png_file] png_create_info_struct failed");
-
- if (setjmp(png_jmpbuf(png_ptr)))
- abort_("[read_png_file] Error during init_io");
-
- png_init_io(png_ptr, fp);
- png_set_sig_bytes(png_ptr, 8);
-
- png_read_info(png_ptr, info_ptr);
-
- width = info_ptr->width;
- height = info_ptr->height;
- color_type = info_ptr->color_type;
- bit_depth = info_ptr->bit_depth;
-
- number_of_passes = png_set_interlace_handling(png_ptr);
- png_read_update_info(png_ptr, info_ptr);
-
-
- /* read file */
- if (setjmp(png_jmpbuf(png_ptr)))
- abort_("[read_png_file] Error during read_image");
-
- row_pointers = (png_bytep*) malloc(sizeof(png_bytep) * height);
- for (y=0; y<height; y++)
- row_pointers[y] = (png_byte*) malloc(info_ptr->rowbytes);
-
- png_read_image(png_ptr, row_pointers);
-}
-
-
-void write_png_file(char* file_name)
-{
- /* create file */
- FILE *fp = fopen(file_name, "wb");
- if (!fp)
- abort_("[write_png_file] File %s could not be opened for writing", file_name);
-
-
- /* initialize stuff */
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-
- if (!png_ptr)
- abort_("[write_png_file] png_create_write_struct failed");
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr)
- abort_("[write_png_file] png_create_info_struct failed");
-
- if (setjmp(png_jmpbuf(png_ptr)))
- abort_("[write_png_file] Error during init_io");
-
- png_init_io(png_ptr, fp);
-
-
- /* write header */
- if (setjmp(png_jmpbuf(png_ptr)))
- abort_("[write_png_file] Error during writing header");
-
- png_set_IHDR(png_ptr, info_ptr, width, height,
- bit_depth, color_type, PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- png_write_info(png_ptr, info_ptr);
-
-
- /* write bytes */
- if (setjmp(png_jmpbuf(png_ptr)))
- abort_("[write_png_file] Error during writing bytes");
-
- png_write_image(png_ptr, row_pointers);
-
-
- /* end write */
- if (setjmp(png_jmpbuf(png_ptr)))
- abort_("[write_png_file] Error during end of write");
-
- png_write_end(png_ptr, NULL);
-
-}
-
-void process_file(char* shift)
-{
- int shift_ = atoi(shift);
-
- if (info_ptr->color_type != PNG_COLOR_TYPE_RGBA)
- abort_("[process_file] color_type of input file must be PNG_COLOR_TYPE_RGBA (is %d)", info_ptr->color_type);
-
- width -= shift_;
- for (y=0; y<height; y++) {
- row_pointers[y] += 4 * shift_;
- }
-
-}
-
-
-int main(int argc, char **argv)
-{
- if (argc != 4)
- abort_("Usage: program_name <file_in> <file_out> <shift>");
-
- read_png_file(argv[1]);
- process_file(argv[3]);
- write_png_file(argv[2]);
-}