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pipi.h 7.4 KiB

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  1. /*
  2. * libpipi Pathetic image processing interface library
  3. * Copyright (c) 2004-2008 Sam Hocevar <sam@zoy.org>
  4. * 2008 Jean-Yves Lamoureux <jylam@lnxscene.org
  5. * All Rights Reserved
  6. *
  7. * $Id$
  8. *
  9. * This library is free software. It comes without any warranty, to
  10. * the extent permitted by applicable law. You can redistribute it
  11. * and/or modify it under the terms of the Do What The Fuck You Want
  12. * To Public License, Version 2, as published by Sam Hocevar. See
  13. * http://sam.zoy.org/wtfpl/COPYING for more details.
  14. */
  15. /*
  16. * pipi.h: the full libpipi public API
  17. */
  18. #ifndef __PIPI_H__
  19. #define __PIPI_H__
  20. #include <pipi_types.h>
  21. #undef __extern
  22. #if defined(_DOXYGEN_SKIP_ME)
  23. #elif defined(_WIN32) && defined(__LIBPIPI__)
  24. # define __extern extern __declspec(dllexport)
  25. #else
  26. # define __extern extern
  27. #endif
  28. #ifdef __cplusplus
  29. extern "C"
  30. {
  31. #endif
  32. /* pipi_scan_t: this enum is a list of all possible scanning methods when
  33. * parsing an image’s pixels. Not all functions support all scanning paths. */
  34. typedef enum
  35. {
  36. PIPI_SCAN_RASTER = 0,
  37. PIPI_SCAN_SERPENTINE = 1
  38. }
  39. pipi_scan_t;
  40. /* pipi_format_t: this enum is a list of all possible pixel formats for
  41. * our internal images. RGBA32 is the most usual format when an image has
  42. * just been loaded, but RGBA_F is a lot better for complex operations. */
  43. typedef enum
  44. {
  45. PIPI_PIXELS_UNINITIALISED = -1,
  46. PIPI_PIXELS_RGBA_C = 0,
  47. PIPI_PIXELS_BGR_C = 1,
  48. PIPI_PIXELS_RGBA_F = 2,
  49. PIPI_PIXELS_Y_F = 3,
  50. PIPI_PIXELS_MASK_C = 4,
  51. PIPI_PIXELS_MAX = 5
  52. }
  53. pipi_format_t;
  54. typedef enum
  55. {
  56. PIPI_COLOR_R = 1,
  57. PIPI_COLOR_G = 2,
  58. PIPI_COLOR_B = 4,
  59. PIPI_COLOR_A = 8,
  60. PIPI_COLOR_Y = 16
  61. }
  62. pipi_color_flag_t;
  63. struct pixel_u32
  64. {
  65. uint8_t r, g, b, a;
  66. };
  67. struct pixel_float
  68. {
  69. float r, g, b, a;
  70. };
  71. typedef struct
  72. {
  73. union
  74. {
  75. struct pixel_float pixel_float;
  76. struct pixel_u32 pixel_u32;
  77. };
  78. }
  79. pipi_pixel_t;
  80. /* pipi_pixels_t: this structure stores a pixel view of an image. */
  81. typedef struct
  82. {
  83. void *pixels;
  84. int w, h, pitch, bpp;
  85. size_t bytes;
  86. }
  87. pipi_pixels_t;
  88. /* pipi_image_t: the main image type */
  89. typedef struct pipi_image pipi_image_t;
  90. /* pipi_context_t: the processing stack */
  91. typedef struct pipi_context pipi_context_t;
  92. /* pipi_histogram_t: the histogram type */
  93. typedef struct pipi_histogram pipi_histogram_t;
  94. /* pipi_command_t: the command type */
  95. typedef struct
  96. {
  97. char const *name;
  98. int argc;
  99. }
  100. pipi_command_t;
  101. __extern pipi_pixel_t *pipi_get_color_from_string(const char* s);
  102. __extern char const * pipi_get_version(void);
  103. __extern pipi_context_t *pipi_create_context(void);
  104. __extern void pipi_destroy_context(pipi_context_t *);
  105. __extern pipi_command_t const *pipi_get_command_list(void);
  106. __extern int pipi_command(pipi_context_t *, char const *, ...);
  107. __extern pipi_image_t *pipi_load(char const *);
  108. __extern pipi_image_t *pipi_load_stock(char const *);
  109. __extern pipi_image_t *pipi_new(int, int);
  110. __extern pipi_image_t *pipi_copy(pipi_image_t *);
  111. __extern void pipi_free(pipi_image_t *);
  112. __extern int pipi_save(pipi_image_t *, const char *);
  113. __extern void pipi_set_gamma(double);
  114. __extern pipi_pixels_t *pipi_getpixels(pipi_image_t *, pipi_format_t);
  115. __extern int pipi_get_image_width(pipi_image_t *img);
  116. __extern int pipi_get_image_height(pipi_image_t *img);
  117. __extern int pipi_get_image_pitch(pipi_image_t *img);
  118. __extern int pipi_get_image_last_modified(pipi_image_t *img);
  119. __extern const char* pipi_get_format_name(int format);
  120. __extern double pipi_measure_msd(pipi_image_t *, pipi_image_t *);
  121. __extern double pipi_measure_rmsd(pipi_image_t *, pipi_image_t *);
  122. __extern pipi_image_t *pipi_resize(pipi_image_t *, int, int);
  123. __extern pipi_image_t *pipi_render_random(int, int);
  124. __extern pipi_image_t *pipi_render_bayer(int, int);
  125. __extern pipi_image_t *pipi_render_halftone(int, int);
  126. __extern pipi_image_t *pipi_rgb(pipi_image_t *, pipi_image_t *, pipi_image_t *);
  127. __extern pipi_image_t *pipi_red(pipi_image_t *);
  128. __extern pipi_image_t *pipi_green(pipi_image_t *);
  129. __extern pipi_image_t *pipi_blue(pipi_image_t *);
  130. __extern pipi_image_t *pipi_mean(pipi_image_t *, pipi_image_t *);
  131. __extern pipi_image_t *pipi_min(pipi_image_t *, pipi_image_t *);
  132. __extern pipi_image_t *pipi_max(pipi_image_t *, pipi_image_t *);
  133. __extern pipi_image_t *pipi_add(pipi_image_t *, pipi_image_t *);
  134. __extern pipi_image_t *pipi_sub(pipi_image_t *, pipi_image_t *);
  135. __extern pipi_image_t *pipi_difference(pipi_image_t *, pipi_image_t *);
  136. __extern pipi_image_t *pipi_multiply(pipi_image_t *, pipi_image_t *);
  137. __extern pipi_image_t *pipi_divide(pipi_image_t *, pipi_image_t *);
  138. __extern pipi_image_t *pipi_screen(pipi_image_t *, pipi_image_t *);
  139. __extern pipi_image_t *pipi_overlay(pipi_image_t *, pipi_image_t *);
  140. __extern pipi_image_t *pipi_convolution(pipi_image_t *, int, int, double[]);
  141. __extern pipi_image_t *pipi_gaussian_blur(pipi_image_t *, float);
  142. __extern pipi_image_t *pipi_gaussian_blur_ext(pipi_image_t *,
  143. float, float, float, float, float);
  144. __extern pipi_image_t *pipi_box_blur(pipi_image_t *, int);
  145. __extern pipi_image_t *pipi_box_blur_ext(pipi_image_t *, int, int);
  146. __extern pipi_image_t *pipi_brightness(pipi_image_t *, double);
  147. __extern pipi_image_t *pipi_contrast(pipi_image_t *, double);
  148. __extern pipi_image_t *pipi_autocontrast(pipi_image_t *);
  149. __extern pipi_image_t *pipi_invert(pipi_image_t *);
  150. __extern pipi_image_t *pipi_threshold(pipi_image_t *, double);
  151. __extern pipi_image_t *pipi_hflip(pipi_image_t *);
  152. __extern pipi_image_t *pipi_vflip(pipi_image_t *);
  153. __extern pipi_image_t *pipi_rotate90(pipi_image_t *);
  154. __extern pipi_image_t *pipi_rotate180(pipi_image_t *);
  155. __extern pipi_image_t *pipi_rotate270(pipi_image_t *);
  156. __extern pipi_image_t *pipi_median(pipi_image_t *, int);
  157. __extern pipi_image_t *pipi_median_ext(pipi_image_t *, int, int);
  158. __extern pipi_image_t *pipi_dilate(pipi_image_t *);
  159. __extern pipi_image_t *pipi_erode(pipi_image_t *);
  160. __extern pipi_image_t *pipi_order(pipi_image_t *);
  161. __extern pipi_image_t *pipi_tile(pipi_image_t *, int, int);
  162. __extern int pipi_flood_fill(pipi_image_t *,
  163. int, int, float, float, float, float);
  164. __extern int pipi_draw_line(pipi_image_t *, int, int, int, int, uint32_t, int);
  165. __extern int pipi_draw_polyline(pipi_image_t *, int const[], int const[],
  166. int , uint32_t, int);
  167. __extern int pipi_draw_bezier4(pipi_image_t *,int, int, int, int, int, int, int, int, uint32_t, int, int);
  168. __extern pipi_image_t *pipi_reduce(pipi_image_t *, int, double const *);
  169. __extern pipi_image_t *pipi_dither_ediff(pipi_image_t *, pipi_image_t *,
  170. pipi_scan_t);
  171. __extern pipi_image_t *pipi_dither_ordered(pipi_image_t *, pipi_image_t *);
  172. __extern pipi_image_t *pipi_dither_ordered_ext(pipi_image_t *, pipi_image_t *,
  173. double, double);
  174. __extern pipi_image_t *pipi_dither_halftone(pipi_image_t *, double, double);
  175. __extern pipi_image_t *pipi_dither_random(pipi_image_t *);
  176. __extern pipi_image_t *pipi_dither_ostromoukhov(pipi_image_t *, pipi_scan_t);
  177. __extern pipi_image_t *pipi_dither_dbs(pipi_image_t *);
  178. __extern void pipi_dither_24to16(pipi_image_t *);
  179. __extern pipi_histogram_t* pipi_new_histogram(void);
  180. __extern int pipi_get_image_histogram(pipi_image_t *, pipi_histogram_t *, int);
  181. __extern int pipi_free_histogram(pipi_histogram_t*);
  182. __extern int pipi_render_histogram(pipi_image_t *, pipi_histogram_t*, int);
  183. #ifdef __cplusplus
  184. }
  185. #endif
  186. #endif /* __PIPI_H__ */