source: libpipi/trunk/pipi/codec/opencv.c @ 2902

Last change on this file since 2902 was 2902, checked in by Sam Hocevar, 12 years ago

Support C99 types on Win32 through the same hacks as in libcaca.

File size: 2.8 KB
Line 
1/*
2 *  libpipi       Pathetic image processing interface library
3 *  Copyright (c) 2004-2008 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id$
7 *
8 *  This library is free software. It comes without any warranty, to
9 *  the extent permitted by applicable law. You can redistribute it
10 *  and/or modify it under the terms of the Do What The Fuck You Want
11 *  To Public License, Version 2, as published by Sam Hocevar. See
12 *  http://sam.zoy.org/wtfpl/COPYING for more details.
13 */
14
15/*
16 * image.c: image I/O functions
17 */
18
19#include "config.h"
20
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24
25#include <cv.h>
26#include <highgui.h>
27
28#include "pipi.h"
29#include "pipi_internals.h"
30
31/* FIXME: this whole file is broken until we support BGR24 images */
32
33static int pipi_free_opencv(pipi_image_t *);
34
35pipi_image_t *pipi_load_opencv(const char *name)
36{
37    pipi_image_t *img;
38
39    IplImage *priv = cvLoadImage(name, 1);
40
41    if(!priv)
42        return NULL;
43
44    img = pipi_new(priv->width, priv->height);
45
46    img->p[PIPI_PIXELS_BGR_C].pixels = priv->imageData;
47    img->p[PIPI_PIXELS_BGR_C].w = priv->width;
48    img->p[PIPI_PIXELS_BGR_C].h = priv->height;
49    img->p[PIPI_PIXELS_BGR_C].pitch = priv->widthStep;
50    img->p[PIPI_PIXELS_BGR_C].bpp = 24;
51    img->p[PIPI_PIXELS_BGR_C].bytes = 3 * img->w * img->h;
52    img->last_modified = PIPI_PIXELS_BGR_C;
53
54    img->codec_priv = (void *)priv;
55    img->codec_format = PIPI_PIXELS_BGR_C;
56    img->codec_free = pipi_free_opencv;
57
58    img->wrap = 0;
59    img->u8 = 1;
60
61    return img;
62}
63
64int pipi_save_opencv(pipi_image_t *img, const char *name)
65{
66    if(!img->codec_priv)
67    {
68        IplImage *priv = cvCreateImage(cvSize(img->w, img->h),
69                                       IPL_DEPTH_8U, 3);
70
71        /* FIXME: check pitch differences here */
72        if(img->last_modified == PIPI_PIXELS_BGR_C)
73        {
74            memcpy(priv->imageData, img->p[PIPI_PIXELS_BGR_C].pixels,
75                   3 * img->w * img->h);
76            free(img->p[PIPI_PIXELS_BGR_C].pixels);
77        }
78
79        img->p[PIPI_PIXELS_BGR_C].pixels = priv->imageData;
80        img->p[PIPI_PIXELS_BGR_C].w = priv->width;
81        img->p[PIPI_PIXELS_BGR_C].h = priv->height;
82        img->p[PIPI_PIXELS_BGR_C].pitch = priv->widthStep;
83        img->p[PIPI_PIXELS_BGR_C].bpp = 24;
84        img->p[PIPI_PIXELS_BGR_C].bytes = 3 * img->w * img->h;
85
86        img->codec_priv = (void *)priv;
87        img->codec_format = PIPI_PIXELS_BGR_C;
88        img->codec_free = pipi_free_opencv;
89
90        img->wrap = 0;
91        img->u8 = 1;
92    }
93
94    pipi_getpixels(img, img->codec_format);
95    cvSaveImage(name, img->codec_priv);
96
97    return 0;
98}
99
100/*
101 * XXX: The following functions are local.
102 */
103
104static int pipi_free_opencv(pipi_image_t *img)
105{
106    IplImage *iplimg;
107    iplimg = (IplImage *)img->codec_priv;
108    cvReleaseImage(&iplimg);
109
110    return 0;
111}
112
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