| /* |
| Copyright 2005-2010 Intel Corporation. All Rights Reserved. |
| |
| This file is part of Threading Building Blocks. |
| |
| Threading Building Blocks is free software; you can redistribute it |
| and/or modify it under the terms of the GNU General Public License |
| version 2 as published by the Free Software Foundation. |
| |
| Threading Building Blocks 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 Threading Building Blocks; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| As a special exception, you may use this file as part of a free software |
| library without restriction. Specifically, if other files instantiate |
| templates or use macros or inline functions from this file, or you compile |
| this file and link it with other files to produce an executable, this |
| file does not by itself cause the resulting executable to be covered by |
| the GNU General Public License. This exception does not however |
| invalidate any other reasons why the executable file might be covered by |
| the GNU General Public License. |
| */ |
| |
| /* |
| The original source for this example is |
| Copyright (c) 1994-2008 John E. Stone |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| 3. The name of the author may not be used to endorse or promote products |
| derived from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| SUCH DAMAGE. |
| */ |
| |
| /* |
| * imageio.c - This file deals with reading/writing image files |
| * |
| * $Id: imageio.cpp,v 1.1.1.1 2012/03/29 17:22:19 uid42307 Exp $ |
| */ |
| |
| /* For our puposes, we're interested only in the 3 byte per pixel 24 bit |
| * truecolor sort of file.. |
| */ |
| |
| #include <stdio.h> |
| #include "machine.h" |
| #include "types.h" |
| #include "util.h" |
| #include "imageio.h" |
| #include "ppm.h" /* PPM files */ |
| #include "tgafile.h" /* Truevision Targa files */ |
| #include "jpeg.h" /* JPEG files */ |
| |
| static |
| int fakeimage(char * name, int * xres, int * yres, unsigned char ** imgdata) { |
| int i, imgsize; |
| |
| fprintf(stderr, "Error loading image %s. Faking it.\n", name); |
| |
| *xres = 2; |
| *yres = 2; |
| imgsize = 3 * (*xres) * (*yres); |
| *imgdata = (unsigned char *)rt_getmem(imgsize); |
| for (i=0; i<imgsize; i++) { |
| (*imgdata)[i] = 255; |
| } |
| |
| return IMAGENOERR; |
| } |
| |
| |
| int readimage(rawimage * img) { |
| int rc; |
| int xres, yres; |
| unsigned char * imgdata; |
| char * name = img->name; |
| |
| if (strstr(name, ".ppm")) { |
| rc = readppm(name, &xres, &yres, &imgdata); |
| } |
| else if (strstr(name, ".tga")) { |
| rc = readtga(name, &xres, &yres, &imgdata); |
| } |
| else if (strstr(name, ".jpg")) { |
| rc = readjpeg(name, &xres, &yres, &imgdata); |
| } |
| else if (strstr(name, ".gif")) { |
| rc = IMAGEUNSUP; |
| } |
| else if (strstr(name, ".png")) { |
| rc = IMAGEUNSUP; |
| } |
| else if (strstr(name, ".tiff")) { |
| rc = IMAGEUNSUP; |
| } |
| else if (strstr(name, ".rgb")) { |
| rc = IMAGEUNSUP; |
| } |
| else if (strstr(name, ".xpm")) { |
| rc = IMAGEUNSUP; |
| } |
| else { |
| rc = readppm(name, &xres, &yres, &imgdata); |
| } |
| |
| switch (rc) { |
| case IMAGEREADERR: |
| fprintf(stderr, "Short read encountered while loading image %s\n", name); |
| rc = IMAGENOERR; /* remap to non-fatal error */ |
| break; |
| |
| case IMAGEUNSUP: |
| fprintf(stderr, "Cannot read unsupported image format for image %s\n", name); |
| break; |
| } |
| |
| /* If the image load failed, create a tiny white colored image to fake it */ |
| /* this allows a scene to render even when a file can't be loaded */ |
| if (rc != IMAGENOERR) { |
| rc = fakeimage(name, &xres, &yres, &imgdata); |
| } |
| |
| /* If we succeeded in loading the image, return it. */ |
| if (rc == IMAGENOERR) { |
| img->xres = xres; |
| img->yres = yres; |
| img->bpp = 3; |
| img->data = imgdata; |
| } |
| |
| return rc; |
| } |
| |
| |