tinyjpeg.h 2.7 KB

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  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. #ifndef __JPEGDEC_H__
  34. #define __JPEGDEC_H__
  35. #ifdef __cplusplus
  36. extern "C" {
  37. #endif
  38. struct jdec_private;
  39. /* Flags that can be set by any applications */
  40. #define TINYJPEG_FLAGS_MJPEG_TABLE (1<<1)
  41. /* Format accepted in outout */
  42. enum tinyjpeg_fmt {
  43. TINYJPEG_FMT_GREY = 1,
  44. TINYJPEG_FMT_BGR24,
  45. TINYJPEG_FMT_RGB24,
  46. TINYJPEG_FMT_YUV420P,
  47. };
  48. struct jdec_private *tinyjpeg_init(void *(*allocate_mem)(unsigned int),void (*free_mem)(void *));
  49. void tinyjpeg_free(struct jdec_private *priv);
  50. int tinyjpeg_parse_header(struct jdec_private *priv, const unsigned char *buf, unsigned int size);
  51. int tinyjpeg_decode(struct jdec_private *priv, int pixel_format);
  52. const char *tinyjpeg_get_errorstring(struct jdec_private *priv);
  53. void tinyjpeg_get_size(struct jdec_private *priv, unsigned int *width, unsigned int *height);
  54. int tinyjpeg_get_components(struct jdec_private *priv, unsigned char **components);
  55. int tinyjpeg_set_components(struct jdec_private *priv, unsigned char **components, unsigned int ncomponents);
  56. int tinyjpeg_set_flags(struct jdec_private *priv, int flags);
  57. #ifdef __cplusplus
  58. }
  59. #endif
  60. #endif