diff options
Diffstat (limited to 'source/blender/imbuf/intern/png_encode.c')
| -rw-r--r-- | source/blender/imbuf/intern/png_encode.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/source/blender/imbuf/intern/png_encode.c b/source/blender/imbuf/intern/png_encode.c deleted file mode 100644 index fbc9afd7b2c..00000000000 --- a/source/blender/imbuf/intern/png_encode.c +++ /dev/null @@ -1,240 +0,0 @@ -/** - * - * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** - * - * 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. The Blender - * Foundation also sells licenses for use in proprietary software under - * the Blender License. See http://www.blender.org/BL/ for information - * about this. - * - * 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 02111-1307, USA. - * - * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. - * All rights reserved. - * - * The Original Code is: all of this file. - * - * Contributor(s): none yet. - * - * ***** END GPL/BL DUAL LICENSE BLOCK ***** - * $Id$ - */ - - -#include "png.h" - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#ifdef WIN32 -#include "BLI_winstuff.h" -#endif -#include "BLI_blenlib.h" - -#include "imbuf.h" -#include "imbuf_patch.h" - -#include "IMB_imbuf_types.h" -#include "IMB_imbuf.h" - -#include "IMB_allocimbuf.h" -#include "IMB_cmap.h" - -static void -WriteData( - png_structp png_ptr, - png_bytep data, - png_size_t length); - -static void -Flush( - png_structp png_ptr); - -static void -WriteData( - png_structp png_ptr, - png_bytep data, - png_size_t length) -{ - ImBuf *ibuf = (ImBuf *) png_get_io_ptr(png_ptr); - - // if buffer is to small increase it. - while (ibuf->encodedsize + length > ibuf->encodedbuffersize) { - imb_enlargeencodedbufferImBuf(ibuf); - } - - memcpy(ibuf->encodedbuffer + ibuf->encodedsize, data, length); - ibuf->encodedsize += length; -} - -static void -Flush( - png_structp png_ptr) -{ -} - -short IMB_png_encode(struct ImBuf *ibuf, int file, int flags) -{ - png_structp png_ptr; - png_infop info_ptr; - unsigned char *pixels = 0; - unsigned char *from, *to; - png_bytepp row_pointers = 0; - int i, bytesperpixel, color_type = PNG_COLOR_TYPE_GRAY; - FILE *fp = 0; - - bytesperpixel = (ibuf->depth + 7) >> 3; - if ((bytesperpixel > 4) || (bytesperpixel == 2)) { - printf("imb_png_encode: unsupported bytes per pixel: %d\n", bytesperpixel); - return (0); - } - - png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, - NULL, NULL, NULL); - if (png_ptr == NULL) { - printf("Cannot png_create_write_struct\n"); - return 0; - } - - info_ptr = png_create_info_struct(png_ptr); - if (info_ptr == NULL) { - png_destroy_write_struct(&png_ptr, (png_infopp)NULL); - printf("Cannot png_create_info_struct\n"); - return 0; - } - - if (setjmp(png_jmpbuf(png_ptr))) { - png_destroy_write_struct(&png_ptr, &info_ptr); - if (pixels) MEM_freeN(pixels); - if (row_pointers) MEM_freeN(row_pointers); - // printf("Aborting\n"); - if (fp) { - fflush(fp); - fclose(fp); - } - return 0; - } - - // copy image data - - pixels = MEM_mallocN(ibuf->x * ibuf->y * bytesperpixel * sizeof(unsigned char), "pixels"); - if (pixels == NULL) { - printf("Cannot allocate pixels array\n"); - return 0; - } - - from = (unsigned char *) ibuf->rect; - to = pixels; - - switch (bytesperpixel) { - case 4: - color_type = PNG_COLOR_TYPE_RGBA; - for (i = ibuf->x * ibuf->y; i > 0; i--) { - to[0] = from[0]; - to[1] = from[1]; - to[2] = from[2]; - to[3] = from[3]; - to += 4; from += 4; - } - break; - case 3: - color_type = PNG_COLOR_TYPE_RGB; - for (i = ibuf->x * ibuf->y; i > 0; i--) { - to[0] = from[0]; - to[1] = from[1]; - to[2] = from[2]; - to += 3; from += 4; - } - break; - case 1: - color_type = PNG_COLOR_TYPE_GRAY; - for (i = ibuf->x * ibuf->y; i > 0; i--) { - to[0] = from[0]; - to++; from += 4; - } - break; - } - - if (flags & IB_mem) { - // create image in memory - imb_addencodedbufferImBuf(ibuf); - ibuf->encodedsize = 0; - - png_set_write_fn(png_ptr, - (png_voidp) ibuf, - WriteData, - Flush); - } else { - fp = fdopen(file, "wb"); - png_init_io(png_ptr, fp); - } - - /* - png_set_filter(png_ptr, 0, - PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE | - PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB | - PNG_FILTER_UP | PNG_FILTER_VALUE_UP | - PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG | - PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH| - PNG_ALL_FILTERS); - - png_set_compression_level(png_ptr, Z_BEST_COMPRESSION); - */ - - // png image settings - png_set_IHDR(png_ptr, - info_ptr, - ibuf->x, - ibuf->y, - 8, - color_type, - PNG_INTERLACE_NONE, - PNG_COMPRESSION_TYPE_DEFAULT, - PNG_FILTER_TYPE_DEFAULT); - - // write the file header information - png_write_info(png_ptr, info_ptr); - - // allocate memory for an array of row-pointers - row_pointers = (png_bytepp) MEM_mallocN(ibuf->y * sizeof(png_bytep), "row_pointers"); - if (row_pointers == NULL) { - printf("Cannot allocate row-pointers array\n"); - return 0; - } - - // set the individual row-pointers to point at the correct offsets - for (i = 0; i < ibuf->y; i++) { - row_pointers[ibuf->y-1-i] = (png_bytep) - ((unsigned char *)pixels + (i * ibuf->x) * bytesperpixel * sizeof(unsigned char)); - } - - // write out the entire image data in one call - png_write_image(png_ptr, row_pointers); - - // write the additional chunks to the PNG file (not really needed) - png_write_end(png_ptr, info_ptr); - - // clean up - MEM_freeN(pixels); - MEM_freeN(row_pointers); - png_destroy_write_struct(&png_ptr, &info_ptr); - - if (fp) { - fflush(fp); - fclose(fp); - } - - return(1); -} - |