write_png.h
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上传日期:2009-03-27
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- /*****************************************************************************
- * Dump an Image to a Portable Network Graphics (PNG) file
- ****************************************************************************
- Copyright (C) 2004 VideoLAN
- Author: Rocky Bernstein
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #include <png.h>
- /*
- Dump an image to a Portable Network Graphics (PNG) file. File_name
- is where the file goes, i_height and i_width are the height and
- width in pixels of the image. The data for the image is stored as a
- linear array RGB pixel entries: one byte for each of red, green,
- and blue component. Thus row[i] will begin at rgb_image +
- i*(i_width*3) and the blue pixel at image[i][0] would be rgb_image
- + i*(i_width*3) + 1.
- text_ptr contains comments that can be written to the image. It can
- be null. i_text_count is the number of entries in text_ptr.
-
- */
- void write_png(const char *file_name, png_uint_32 i_height,
- png_uint_32 i_width, void *rgb_image,
- /*in*/ png_text *text_ptr, int i_text_count );