com32/include/tinyjpeg.h

   1 /*
   2  * Small jpeg decoder library (header file)
   3  *
   4  * Copyright (c) 2006, Luc Saillard <luc@saillard.org>
   5  * All rights reserved.
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright notice,
  10  *  this list of conditions and the following disclaimer.
  11  *
  12  * - Redistributions in binary form must reproduce the above copyright notice,
  13  *  this list of conditions and the following disclaimer in the documentation
  14  *  and/or other materials provided with the distribution.
  15  *
  16  * - Neither the name of the author nor the names of its contributors may be
  17  *  used to endorse or promote products derived from this software without
  18  *  specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  */
  33
  34
  35 #ifndef __JPEGDEC_H__
  36 #define __JPEGDEC_H__
  37
  38 #ifdef __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 struct jdec_private;
  43
  44 /* Flags that can be set by any applications */
  45 #define TINYJPEG_FLAGS_MJPEG_TABLE      (1<<1)
  46
  47 /* Format accepted in outout */
  48 struct tinyjpeg_colorspace;
  49 typedef const struct tinyjpeg_colorspace *tinyjpeg_colorspace_t;
  50
  51 extern const tinyjpeg_colorspace_t TINYJPEG_FMT_GREY, TINYJPEG_FMT_BGR24,
  52   TINYJPEG_FMT_RGB24, TINYJPEG_FMT_YUV420P, TINYJPEG_FMT_BGRA32,
  53   TINYJPEG_FMT_RGBA32;
  54
  55 struct jdec_private *tinyjpeg_init(void);
  56 void tinyjpeg_free(struct jdec_private *priv);
  57
  58 int tinyjpeg_parse_header(struct jdec_private *priv, const unsigned char *buf, unsigned int size);
  59 int tinyjpeg_decode(struct jdec_private *priv, tinyjpeg_colorspace_t pixel_format);
  60 const char *tinyjpeg_get_errorstring(struct jdec_private *priv);
  61 void tinyjpeg_get_size(struct jdec_private *priv, unsigned int *width, unsigned int *height);
  62 int tinyjpeg_get_components(struct jdec_private *priv, unsigned char **components, unsigned int ncomponents);
  63 int tinyjpeg_set_components(struct jdec_private *priv, unsigned char * const *components, unsigned int ncomponents);
  64 int tinyjpeg_get_bytes_per_row(struct jdec_private *priv, unsigned int *bytes, unsigned int ncomponents);
  65 int tinyjpeg_set_bytes_per_row(struct jdec_private *priv, const unsigned int *bytes, unsigned int ncomponents);
  66 int tinyjpeg_set_flags(struct jdec_private *priv, int flags);
  67
  68 #ifdef __cplusplus
  69 }
  70 #endif
  71
  72 #endif