From 1d9a4b73a37c6e942f909c2d42ca13b5c47e8362 Mon Sep 17 00:00:00 2001 From: Mystery Man Date: Tue, 5 Apr 2005 19:41:54 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'V10_2_20mdk'. --- tools/shift_img.c | 165 ------------------------------------------------------ 1 file changed, 165 deletions(-) delete mode 100644 tools/shift_img.c (limited to 'tools/shift_img.c') 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 -#include -#include -#include - -#define PNG_DEBUG 3 -#include - -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; yrowbytes); - - 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 "); - - read_png_file(argv[1]); - process_file(argv[3]); - write_png_file(argv[2]); -} -- cgit v1.2.1