pixman/pixman.h

   1 /***********************************************************
   2
   3 Copyright 1987, 1998  The Open Group
   4
   5 Permission to use, copy, modify, distribute, and sell this software and its
   6 documentation for any purpose is hereby granted without fee, provided that
   7 the above copyright notice appear in all copies and that both that
   8 copyright notice and this permission notice appear in supporting
   9 documentation.
  10
  11 The above copyright notice and this permission notice shall be included in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20
  21 Except as contained in this notice, the name of The Open Group shall not be
  22 used in advertising or otherwise to promote the sale, use or other dealings
  23 in this Software without prior written authorization from The Open Group.
  24
  25 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  26
  27                         All Rights Reserved
  28
  29 Permission to use, copy, modify, and distribute this software and its
  30 documentation for any purpose and without fee is hereby granted,
  31 provided that the above copyright notice appear in all copies and that
  32 both that copyright notice and this permission notice appear in
  33 supporting documentation, and that the name of Digital not be
  34 used in advertising or publicity pertaining to distribution of the
  35 software without specific, written prior permission.
  36
  37 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  39 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  43 SOFTWARE.
  44
  45 ******************************************************************/
  46 /*
  47  * Copyright © 1998, 2004 Keith Packard
  48  * Copyright   2007 Red Hat, Inc.
  49  *
  50  * Permission to use, copy, modify, distribute, and sell this software and its
  51  * documentation for any purpose is hereby granted without fee, provided that
  52  * the above copyright notice appear in all copies and that both that
  53  * copyright notice and this permission notice appear in supporting
  54  * documentation, and that the name of Keith Packard not be used in
  55  * advertising or publicity pertaining to distribution of the software without
  56  * specific, written prior permission.  Keith Packard makes no
  57  * representations about the suitability of this software for any purpose.  It
  58  * is provided "as is" without express or implied warranty.
  59  *
  60  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  61  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  62  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  63  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  64  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  65  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  66  * PERFORMANCE OF THIS SOFTWARE.
  67  */
  68
  69 #ifndef PIXMAN_H__
  70 #define PIXMAN_H__
  71
  72 #include <pixman-version.h>
  73
  74 #ifdef  __cplusplus
  75 #define PIXMAN_BEGIN_DECLS extern "C" {
  76 #define PIXMAN_END_DECLS }
  77 #else
  78 #define PIXMAN_BEGIN_DECLS
  79 #define PIXMAN_END_DECLS
  80 #endif
  81
  82 PIXMAN_BEGIN_DECLS
  83
  84 /*
  85  * Standard integers
  86  */
  87
  88 #if !defined (PIXMAN_DONT_DEFINE_STDINT)
  89
  90 #if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || defined (_sgi) || defined (__sun) || defined (sun) || defined (__digital__) || defined (__HP_cc)
  91 #  include <inttypes.h>
  92 /* VS 2010 (_MSC_VER 1600) has stdint.h */
  93 #elif defined (_MSC_VER) && _MSC_VER < 1600
  94 typedef __int8 int8_t;
  95 typedef unsigned __int8 uint8_t;
  96 typedef __int16 int16_t;
  97 typedef unsigned __int16 uint16_t;
  98 typedef __int32 int32_t;
  99 typedef unsigned __int32 uint32_t;
 100 typedef __int64 int64_t;
 101 typedef unsigned __int64 uint64_t;
 102 #elif defined (_AIX)
 103 #  include <sys/inttypes.h>
 104 #else
 105 #  include <stdint.h>
 106 #endif
 107
 108 #endif
 109
 110 /*
 111  * Boolean
 112  */
 113 typedef int pixman_bool_t;
 114
 115 /*
 116  * Fixpoint numbers
 117  */
 118 typedef int64_t                 pixman_fixed_32_32_t;
 119 typedef pixman_fixed_32_32_t    pixman_fixed_48_16_t;
 120 typedef uint32_t                pixman_fixed_1_31_t;
 121 typedef uint32_t                pixman_fixed_1_16_t;
 122 typedef int32_t                 pixman_fixed_16_16_t;
 123 typedef pixman_fixed_16_16_t    pixman_fixed_t;
 124
 125 #define pixman_fixed_e                  ((pixman_fixed_t) 1)
 126 #define pixman_fixed_1                  (pixman_int_to_fixed(1))
 127 #define pixman_fixed_1_minus_e          (pixman_fixed_1 - pixman_fixed_e)
 128 #define pixman_fixed_minus_1            (pixman_int_to_fixed(-1))
 129 #define pixman_fixed_to_int(f)          ((int) ((f) >> 16))
 130 #define pixman_int_to_fixed(i)          ((pixman_fixed_t) ((i) << 16))
 131 #define pixman_fixed_to_double(f)       (double) ((f) / (double) pixman_fixed_1)
 132 #define pixman_double_to_fixed(d)       ((pixman_fixed_t) ((d) * 65536.0))
 133 #define pixman_fixed_frac(f)            ((f) & pixman_fixed_1_minus_e)
 134 #define pixman_fixed_floor(f)           ((f) & ~pixman_fixed_1_minus_e)
 135 #define pixman_fixed_ceil(f)            pixman_fixed_floor ((f) + pixman_fixed_1_minus_e)
 136 #define pixman_fixed_fraction(f)        ((f) & pixman_fixed_1_minus_e)
 137 #define pixman_fixed_mod_2(f)           ((f) & (pixman_fixed1 | pixman_fixed_1_minus_e))
 138 #define pixman_max_fixed_48_16          ((pixman_fixed_48_16_t) 0x7fffffff)
 139 #define pixman_min_fixed_48_16          (-((pixman_fixed_48_16_t) 1 << 31))
 140
 141 /*
 142  * Misc structs
 143  */
 144 typedef struct pixman_color pixman_color_t;
 145 typedef struct pixman_point_fixed pixman_point_fixed_t;
 146 typedef struct pixman_line_fixed pixman_line_fixed_t;
 147 typedef struct pixman_vector pixman_vector_t;
 148 typedef struct pixman_transform pixman_transform_t;
 149
 150 struct pixman_color
 151 {
 152     uint16_t    red;
 153     uint16_t    green;
 154     uint16_t    blue;
 155     uint16_t    alpha;
 156 };
 157
 158 struct pixman_point_fixed
 159 {
 160     pixman_fixed_t      x;
 161     pixman_fixed_t      y;
 162 };
 163
 164 struct pixman_line_fixed
 165 {
 166     pixman_point_fixed_t        p1, p2;
 167 };
 168
 169 /*
 170  * Fixed point matrices
 171  */
 172
 173 struct pixman_vector
 174 {
 175     pixman_fixed_t      vector[3];
 176 };
 177
 178 struct pixman_transform
 179 {
 180     pixman_fixed_t      matrix[3][3];
 181 };
 182
 183 /* forward declaration (sorry) */
 184 struct pixman_box16;
 185 typedef  union pixman_image             pixman_image_t;
 186
 187 void          pixman_transform_init_identity    (struct pixman_transform       *matrix);
 188 pixman_bool_t pixman_transform_point_3d         (const struct pixman_transform *transform,
 189                                                  struct pixman_vector          *vector);
 190 pixman_bool_t pixman_transform_point            (const struct pixman_transform *transform,
 191                                                  struct pixman_vector          *vector);
 192 pixman_bool_t pixman_transform_multiply         (struct pixman_transform       *dst,
 193                                                  const struct pixman_transform *l,
 194                                                  const struct pixman_transform *r);
 195 void          pixman_transform_init_scale       (struct pixman_transform       *t,
 196                                                  pixman_fixed_t                 sx,
 197                                                  pixman_fixed_t                 sy);
 198 pixman_bool_t pixman_transform_scale            (struct pixman_transform       *forward,
 199                                                  struct pixman_transform       *reverse,
 200                                                  pixman_fixed_t                 sx,
 201                                                  pixman_fixed_t                 sy);
 202 void          pixman_transform_init_rotate      (struct pixman_transform       *t,
 203                                                  pixman_fixed_t                 cos,
 204                                                  pixman_fixed_t                 sin);
 205 pixman_bool_t pixman_transform_rotate           (struct pixman_transform       *forward,
 206                                                  struct pixman_transform       *reverse,
 207                                                  pixman_fixed_t                 c,
 208                                                  pixman_fixed_t                 s);
 209 void          pixman_transform_init_translate   (struct pixman_transform       *t,
 210                                                  pixman_fixed_t                 tx,
 211                                                  pixman_fixed_t                 ty);
 212 pixman_bool_t pixman_transform_translate        (struct pixman_transform       *forward,
 213                                                  struct pixman_transform       *reverse,
 214                                                  pixman_fixed_t                 tx,
 215                                                  pixman_fixed_t                 ty);
 216 pixman_bool_t pixman_transform_bounds           (const struct pixman_transform *matrix,
 217                                                  struct pixman_box16           *b);
 218 pixman_bool_t pixman_transform_invert           (struct pixman_transform       *dst,
 219                                                  const struct pixman_transform *src);
 220 pixman_bool_t pixman_transform_is_identity      (const struct pixman_transform *t);
 221 pixman_bool_t pixman_transform_is_scale         (const struct pixman_transform *t);
 222 pixman_bool_t pixman_transform_is_int_translate (const struct pixman_transform *t);
 223 pixman_bool_t pixman_transform_is_inverse       (const struct pixman_transform *a,
 224                                                  const struct pixman_transform *b);
 225
 226 /*
 227  * Floating point matrices
 228  */
 229 struct pixman_f_vector
 230 {
 231     double  v[3];
 232 };
 233
 234 struct pixman_f_transform
 235 {
 236     double  m[3][3];
 237 };
 238
 239 pixman_bool_t pixman_transform_from_pixman_f_transform (struct pixman_transform         *t,
 240                                                         const struct pixman_f_transform *ft);
 241 void          pixman_f_transform_from_pixman_transform (struct pixman_f_transform       *ft,
 242                                                         const struct pixman_transform   *t);
 243 pixman_bool_t pixman_f_transform_invert                (struct pixman_f_transform       *dst,
 244                                                         const struct pixman_f_transform *src);
 245 pixman_bool_t pixman_f_transform_point                 (const struct pixman_f_transform *t,
 246                                                         struct pixman_f_vector          *v);
 247 void          pixman_f_transform_point_3d              (const struct pixman_f_transform *t,
 248                                                         struct pixman_f_vector          *v);
 249 void          pixman_f_transform_multiply              (struct pixman_f_transform       *dst,
 250                                                         const struct pixman_f_transform *l,
 251                                                         const struct pixman_f_transform *r);
 252 void          pixman_f_transform_init_scale            (struct pixman_f_transform       *t,
 253                                                         double                           sx,
 254                                                         double                           sy);
 255 pixman_bool_t pixman_f_transform_scale                 (struct pixman_f_transform       *forward,
 256                                                         struct pixman_f_transform       *reverse,
 257                                                         double                           sx,
 258                                                         double                           sy);
 259 void          pixman_f_transform_init_rotate           (struct pixman_f_transform       *t,
 260                                                         double                           cos,
 261                                                         double                           sin);
 262 pixman_bool_t pixman_f_transform_rotate                (struct pixman_f_transform       *forward,
 263                                                         struct pixman_f_transform       *reverse,
 264                                                         double                           c,
 265                                                         double                           s);
 266 void          pixman_f_transform_init_translate        (struct pixman_f_transform       *t,
 267                                                         double                           tx,
 268                                                         double                           ty);
 269 pixman_bool_t pixman_f_transform_translate             (struct pixman_f_transform       *forward,
 270                                                         struct pixman_f_transform       *reverse,
 271                                                         double                           tx,
 272                                                         double                           ty);
 273 pixman_bool_t pixman_f_transform_bounds                (const struct pixman_f_transform *t,
 274                                                         struct pixman_box16             *b);
 275 void          pixman_f_transform_init_identity         (struct pixman_f_transform       *t);
 276
 277 typedef enum
 278 {
 279     PIXMAN_REPEAT_NONE,
 280     PIXMAN_REPEAT_NORMAL,
 281     PIXMAN_REPEAT_PAD,
 282     PIXMAN_REPEAT_REFLECT
 283 } pixman_repeat_t;
 284
 285 typedef enum
 286 {
 287     PIXMAN_FILTER_FAST,
 288     PIXMAN_FILTER_GOOD,
 289     PIXMAN_FILTER_BEST,
 290     PIXMAN_FILTER_NEAREST,
 291     PIXMAN_FILTER_BILINEAR,
 292     PIXMAN_FILTER_CONVOLUTION
 293 } pixman_filter_t;
 294
 295 typedef enum
 296 {
 297     PIXMAN_OP_CLEAR                     = 0x00,
 298     PIXMAN_OP_SRC                       = 0x01,
 299     PIXMAN_OP_DST                       = 0x02,
 300     PIXMAN_OP_OVER                      = 0x03,
 301     PIXMAN_OP_OVER_REVERSE              = 0x04,
 302     PIXMAN_OP_IN                        = 0x05,
 303     PIXMAN_OP_IN_REVERSE                = 0x06,
 304     PIXMAN_OP_OUT                       = 0x07,
 305     PIXMAN_OP_OUT_REVERSE               = 0x08,
 306     PIXMAN_OP_ATOP                      = 0x09,
 307     PIXMAN_OP_ATOP_REVERSE              = 0x0a,
 308     PIXMAN_OP_XOR                       = 0x0b,
 309     PIXMAN_OP_ADD                       = 0x0c,
 310     PIXMAN_OP_SATURATE                  = 0x0d,
 311
 312     PIXMAN_OP_DISJOINT_CLEAR            = 0x10,
 313     PIXMAN_OP_DISJOINT_SRC              = 0x11,
 314     PIXMAN_OP_DISJOINT_DST              = 0x12,
 315     PIXMAN_OP_DISJOINT_OVER             = 0x13,
 316     PIXMAN_OP_DISJOINT_OVER_REVERSE     = 0x14,
 317     PIXMAN_OP_DISJOINT_IN               = 0x15,
 318     PIXMAN_OP_DISJOINT_IN_REVERSE       = 0x16,
 319     PIXMAN_OP_DISJOINT_OUT              = 0x17,
 320     PIXMAN_OP_DISJOINT_OUT_REVERSE      = 0x18,
 321     PIXMAN_OP_DISJOINT_ATOP             = 0x19,
 322     PIXMAN_OP_DISJOINT_ATOP_REVERSE     = 0x1a,
 323     PIXMAN_OP_DISJOINT_XOR              = 0x1b,
 324
 325     PIXMAN_OP_CONJOINT_CLEAR            = 0x20,
 326     PIXMAN_OP_CONJOINT_SRC              = 0x21,
 327     PIXMAN_OP_CONJOINT_DST              = 0x22,
 328     PIXMAN_OP_CONJOINT_OVER             = 0x23,
 329     PIXMAN_OP_CONJOINT_OVER_REVERSE     = 0x24,
 330     PIXMAN_OP_CONJOINT_IN               = 0x25,
 331     PIXMAN_OP_CONJOINT_IN_REVERSE       = 0x26,
 332     PIXMAN_OP_CONJOINT_OUT              = 0x27,
 333     PIXMAN_OP_CONJOINT_OUT_REVERSE      = 0x28,
 334     PIXMAN_OP_CONJOINT_ATOP             = 0x29,
 335     PIXMAN_OP_CONJOINT_ATOP_REVERSE     = 0x2a,
 336     PIXMAN_OP_CONJOINT_XOR              = 0x2b,
 337
 338     PIXMAN_OP_MULTIPLY                  = 0x30,
 339     PIXMAN_OP_SCREEN                    = 0x31,
 340     PIXMAN_OP_OVERLAY                   = 0x32,
 341     PIXMAN_OP_DARKEN                    = 0x33,
 342     PIXMAN_OP_LIGHTEN                   = 0x34,
 343     PIXMAN_OP_COLOR_DODGE               = 0x35,
 344     PIXMAN_OP_COLOR_BURN                = 0x36,
 345     PIXMAN_OP_HARD_LIGHT                = 0x37,
 346     PIXMAN_OP_SOFT_LIGHT                = 0x38,
 347     PIXMAN_OP_DIFFERENCE                = 0x39,
 348     PIXMAN_OP_EXCLUSION                 = 0x3a,
 349     PIXMAN_OP_HSL_HUE                   = 0x3b,
 350     PIXMAN_OP_HSL_SATURATION            = 0x3c,
 351     PIXMAN_OP_HSL_COLOR                 = 0x3d,
 352     PIXMAN_OP_HSL_LUMINOSITY            = 0x3e
 353
 354 #ifdef PIXMAN_USE_INTERNAL_API
 355     ,
 356     PIXMAN_N_OPERATORS,
 357     PIXMAN_OP_NONE = PIXMAN_N_OPERATORS
 358 #endif
 359 } pixman_op_t;
 360
 361 /*
 362  * Regions
 363  */
 364 typedef struct pixman_region16_data     pixman_region16_data_t;
 365 typedef struct pixman_box16             pixman_box16_t;
 366 typedef struct pixman_rectangle16       pixman_rectangle16_t;
 367 typedef struct pixman_region16          pixman_region16_t;
 368
 369 struct pixman_region16_data {
 370     long                size;
 371     long                numRects;
 372 /*  pixman_box16_t      rects[size];   in memory but not explicitly declared */
 373 };
 374
 375 struct pixman_rectangle16
 376 {
 377     int16_t     x, y;
 378     uint16_t    width, height;
 379 };
 380
 381 struct pixman_box16
 382 {
 383     int16_t x1, y1, x2, y2;
 384 };
 385
 386 struct pixman_region16
 387 {
 388     pixman_box16_t          extents;
 389     pixman_region16_data_t *data;
 390 };
 391
 392 typedef enum
 393 {
 394     PIXMAN_REGION_OUT,
 395     PIXMAN_REGION_IN,
 396     PIXMAN_REGION_PART
 397 } pixman_region_overlap_t;
 398
 399 /* This function exists only to make it possible to preserve
 400  * the X ABI - it should go away at first opportunity.
 401  */
 402 void pixman_region_set_static_pointers (pixman_box16_t         *empty_box,
 403                                         pixman_region16_data_t *empty_data,
 404                                         pixman_region16_data_t *broken_data);
 405
 406 /* creation/destruction */
 407 void                    pixman_region_init               (pixman_region16_t *region);
 408 void                    pixman_region_init_rect          (pixman_region16_t *region,
 409                                                           int                x,
 410                                                           int                y,
 411                                                           unsigned int       width,
 412                                                           unsigned int       height);
 413 pixman_bool_t           pixman_region_init_rects         (pixman_region16_t *region,
 414                                                           const pixman_box16_t *boxes,
 415                                                           int                count);
 416 void                    pixman_region_init_with_extents  (pixman_region16_t *region,
 417                                                           pixman_box16_t    *extents);
 418 void                    pixman_region_init_from_image    (pixman_region16_t *region,
 419                                                           pixman_image_t    *image);
 420 void                    pixman_region_fini               (pixman_region16_t *region);
 421
 422
 423 /* manipulation */
 424 void                    pixman_region_translate          (pixman_region16_t *region,
 425                                                           int                x,
 426                                                           int                y);
 427 pixman_bool_t           pixman_region_copy               (pixman_region16_t *dest,
 428                                                           pixman_region16_t *source);
 429 pixman_bool_t           pixman_region_intersect          (pixman_region16_t *new_reg,
 430                                                           pixman_region16_t *reg1,
 431                                                           pixman_region16_t *reg2);
 432 pixman_bool_t           pixman_region_union              (pixman_region16_t *new_reg,
 433                                                           pixman_region16_t *reg1,
 434                                                           pixman_region16_t *reg2);
 435 pixman_bool_t           pixman_region_union_rect         (pixman_region16_t *dest,
 436                                                           pixman_region16_t *source,
 437                                                           int                x,
 438                                                           int                y,
 439                                                           unsigned int       width,
 440                                                           unsigned int       height);
 441 pixman_bool_t           pixman_region_intersect_rect     (pixman_region16_t *dest,
 442                                                           pixman_region16_t *source,
 443                                                           int                x,
 444                                                           int                y,
 445                                                           unsigned int       width,
 446                                                           unsigned int       height);
 447 pixman_bool_t           pixman_region_subtract           (pixman_region16_t *reg_d,
 448                                                           pixman_region16_t *reg_m,
 449                                                           pixman_region16_t *reg_s);
 450 pixman_bool_t           pixman_region_inverse            (pixman_region16_t *new_reg,
 451                                                           pixman_region16_t *reg1,
 452                                                           pixman_box16_t    *inv_rect);
 453 pixman_bool_t           pixman_region_contains_point     (pixman_region16_t *region,
 454                                                           int                x,
 455                                                           int                y,
 456                                                           pixman_box16_t    *box);
 457 pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *region,
 458                                                           pixman_box16_t    *prect);
 459 pixman_bool_t           pixman_region_not_empty          (pixman_region16_t *region);
 460 pixman_box16_t *        pixman_region_extents            (pixman_region16_t *region);
 461 int                     pixman_region_n_rects            (pixman_region16_t *region);
 462 pixman_box16_t *        pixman_region_rectangles         (pixman_region16_t *region,
 463                                                           int               *n_rects);
 464 pixman_bool_t           pixman_region_equal              (pixman_region16_t *region1,
 465                                                           pixman_region16_t *region2);
 466 pixman_bool_t           pixman_region_selfcheck          (pixman_region16_t *region);
 467 void                    pixman_region_reset              (pixman_region16_t *region,
 468                                                           pixman_box16_t    *box);
 469 void                    pixman_region_clear              (pixman_region16_t *region);
 470 /*
 471  * 32 bit regions
 472  */
 473 typedef struct pixman_region32_data     pixman_region32_data_t;
 474 typedef struct pixman_box32             pixman_box32_t;
 475 typedef struct pixman_rectangle32       pixman_rectangle32_t;
 476 typedef struct pixman_region32          pixman_region32_t;
 477
 478 struct pixman_region32_data {
 479     long                size;
 480     long                numRects;
 481 /*  pixman_box32_t      rects[size];   in memory but not explicitly declared */
 482 };
 483
 484 struct pixman_rectangle32
 485 {
 486     int32_t x, y;
 487     uint32_t width, height;
 488 };
 489
 490 struct pixman_box32
 491 {
 492     int32_t x1, y1, x2, y2;
 493 };
 494
 495 struct pixman_region32
 496 {
 497     pixman_box32_t          extents;
 498     pixman_region32_data_t  *data;
 499 };
 500
 501 /* creation/destruction */
 502 void                    pixman_region32_init               (pixman_region32_t *region);
 503 void                    pixman_region32_init_rect          (pixman_region32_t *region,
 504                                                             int                x,
 505                                                             int                y,
 506                                                             unsigned int       width,
 507                                                             unsigned int       height);
 508 pixman_bool_t           pixman_region32_init_rects         (pixman_region32_t *region,
 509                                                             const pixman_box32_t *boxes,
 510                                                             int                count);
 511 void                    pixman_region32_init_with_extents  (pixman_region32_t *region,
 512                                                             pixman_box32_t    *extents);
 513 void                    pixman_region32_init_from_image    (pixman_region32_t *region,
 514                                                             pixman_image_t    *image);
 515 void                    pixman_region32_fini               (pixman_region32_t *region);
 516
 517
 518 /* manipulation */
 519 void                    pixman_region32_translate          (pixman_region32_t *region,
 520                                                             int                x,
 521                                                             int                y);
 522 pixman_bool_t           pixman_region32_copy               (pixman_region32_t *dest,
 523                                                             pixman_region32_t *source);
 524 pixman_bool_t           pixman_region32_intersect          (pixman_region32_t *new_reg,
 525                                                             pixman_region32_t *reg1,
 526                                                             pixman_region32_t *reg2);
 527 pixman_bool_t           pixman_region32_union              (pixman_region32_t *new_reg,
 528                                                             pixman_region32_t *reg1,
 529                                                             pixman_region32_t *reg2);
 530 pixman_bool_t           pixman_region32_intersect_rect     (pixman_region32_t *dest,
 531                                                             pixman_region32_t *source,
 532                                                             int                x,
 533                                                             int                y,
 534                                                             unsigned int       width,
 535                                                             unsigned int       height);
 536 pixman_bool_t           pixman_region32_union_rect         (pixman_region32_t *dest,
 537                                                             pixman_region32_t *source,
 538                                                             int                x,
 539                                                             int                y,
 540                                                             unsigned int       width,
 541                                                             unsigned int       height);
 542 pixman_bool_t           pixman_region32_subtract           (pixman_region32_t *reg_d,
 543                                                             pixman_region32_t *reg_m,
 544                                                             pixman_region32_t *reg_s);
 545 pixman_bool_t           pixman_region32_inverse            (pixman_region32_t *new_reg,
 546                                                             pixman_region32_t *reg1,
 547                                                             pixman_box32_t    *inv_rect);
 548 pixman_bool_t           pixman_region32_contains_point     (pixman_region32_t *region,
 549                                                             int                x,
 550                                                             int                y,
 551                                                             pixman_box32_t    *box);
 552 pixman_region_overlap_t pixman_region32_contains_rectangle (pixman_region32_t *region,
 553                                                             pixman_box32_t    *prect);
 554 pixman_bool_t           pixman_region32_not_empty          (pixman_region32_t *region);
 555 pixman_box32_t *        pixman_region32_extents            (pixman_region32_t *region);
 556 int                     pixman_region32_n_rects            (pixman_region32_t *region);
 557 pixman_box32_t *        pixman_region32_rectangles         (pixman_region32_t *region,
 558                                                             int               *n_rects);
 559 pixman_bool_t           pixman_region32_equal              (pixman_region32_t *region1,
 560                                                             pixman_region32_t *region2);
 561 pixman_bool_t           pixman_region32_selfcheck          (pixman_region32_t *region);
 562 void                    pixman_region32_reset              (pixman_region32_t *region,
 563                                                             pixman_box32_t    *box);
 564 void                    pixman_region32_clear              (pixman_region32_t *region);
 565
 566
 567 /* Copy / Fill / Misc */
 568 pixman_bool_t pixman_blt                (uint32_t           *src_bits,
 569                                          uint32_t           *dst_bits,
 570                                          int                 src_stride,
 571                                          int                 dst_stride,
 572                                          int                 src_bpp,
 573                                          int                 dst_bpp,
 574                                          int                 src_x,
 575                                          int                 src_y,
 576                                          int                 dest_x,
 577                                          int                 dest_y,
 578                                          int                 width,
 579                                          int                 height);
 580 pixman_bool_t pixman_fill               (uint32_t           *bits,
 581                                          int                 stride,
 582                                          int                 bpp,
 583                                          int                 x,
 584                                          int                 y,
 585                                          int                 width,
 586                                          int                 height,
 587                                          uint32_t            _xor);
 588
 589 int           pixman_version            (void);
 590 const char*   pixman_version_string     (void);
 591
 592 /*
 593  * Images
 594  */
 595 typedef struct pixman_indexed           pixman_indexed_t;
 596 typedef struct pixman_gradient_stop     pixman_gradient_stop_t;
 597
 598 typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size);
 599 typedef void     (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size);
 600
 601 typedef void     (* pixman_image_destroy_func_t) (pixman_image_t *image, void *data);
 602
 603 struct pixman_gradient_stop {
 604     pixman_fixed_t x;
 605     pixman_color_t color;
 606 };
 607
 608 #define PIXMAN_MAX_INDEXED  256 /* XXX depth must be <= 8 */
 609
 610 #if PIXMAN_MAX_INDEXED <= 256
 611 typedef uint8_t pixman_index_type;
 612 #endif
 613
 614 struct pixman_indexed
 615 {
 616     pixman_bool_t       color;
 617     uint32_t            rgba[PIXMAN_MAX_INDEXED];
 618     pixman_index_type   ent[32768];
 619 };
 620
 621 /*
 622  * While the protocol is generous in format support, the
 623  * sample implementation allows only packed RGB and GBR
 624  * representations for data to simplify software rendering,
 625  */
 626 #define PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) |  \
 627                                          ((type) << 16) | \
 628                                          ((a) << 12) |    \
 629                                          ((r) << 8) |     \
 630                                          ((g) << 4) |     \
 631                                          ((b)))
 632
 633 #define PIXMAN_FORMAT_BPP(f)    (((f) >> 24)       )
 634 #define PIXMAN_FORMAT_TYPE(f)   (((f) >> 16) & 0xff)
 635 #define PIXMAN_FORMAT_A(f)      (((f) >> 12) & 0x0f)
 636 #define PIXMAN_FORMAT_R(f)      (((f) >>  8) & 0x0f)
 637 #define PIXMAN_FORMAT_G(f)      (((f) >>  4) & 0x0f)
 638 #define PIXMAN_FORMAT_B(f)      (((f)      ) & 0x0f)
 639 #define PIXMAN_FORMAT_RGB(f)    (((f)      ) & 0xfff)
 640 #define PIXMAN_FORMAT_VIS(f)    (((f)      ) & 0xffff)
 641 #define PIXMAN_FORMAT_DEPTH(f)  (PIXMAN_FORMAT_A(f) +   \
 642                                  PIXMAN_FORMAT_R(f) +   \
 643                                  PIXMAN_FORMAT_G(f) +   \
 644                                  PIXMAN_FORMAT_B(f))
 645
 646 #define PIXMAN_TYPE_OTHER       0
 647 #define PIXMAN_TYPE_A           1
 648 #define PIXMAN_TYPE_ARGB        2
 649 #define PIXMAN_TYPE_ABGR        3
 650 #define PIXMAN_TYPE_COLOR       4
 651 #define PIXMAN_TYPE_GRAY        5
 652 #define PIXMAN_TYPE_YUY2        6
 653 #define PIXMAN_TYPE_YV12        7
 654 #define PIXMAN_TYPE_BGRA        8
 655 #define PIXMAN_TYPE_RGBA        9
 656
 657 #define PIXMAN_FORMAT_COLOR(f)                          \
 658         (PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ARGB ||   \
 659          PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ABGR ||   \
 660          PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_BGRA ||   \
 661          PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_RGBA)
 662
 663 /* 32bpp formats */
 664 typedef enum {
 665     PIXMAN_a8r8g8b8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8),
 666     PIXMAN_x8r8g8b8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8),
 667     PIXMAN_a8b8g8r8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8),
 668     PIXMAN_x8b8g8r8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8),
 669     PIXMAN_b8g8r8a8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,8,8,8,8),
 670     PIXMAN_b8g8r8x8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,0,8,8,8),
 671     PIXMAN_r8g8b8a8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,8,8,8,8),
 672     PIXMAN_r8g8b8x8 =    PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,0,8,8,8),
 673     PIXMAN_x14r6g6b6 =   PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,6,6,6),
 674     PIXMAN_x2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,10,10,10),
 675     PIXMAN_a2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,2,10,10,10),
 676     PIXMAN_x2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,10,10,10),
 677     PIXMAN_a2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,2,10,10,10),
 678
 679 /* 24bpp formats */
 680     PIXMAN_r8g8b8 =      PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8),
 681     PIXMAN_b8g8r8 =      PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8),
 682
 683 /* 16bpp formats */
 684     PIXMAN_r5g6b5 =      PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5),
 685     PIXMAN_b5g6r5 =      PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5),
 686
 687     PIXMAN_a1r5g5b5 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5),
 688     PIXMAN_x1r5g5b5 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5),
 689     PIXMAN_a1b5g5r5 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5),
 690     PIXMAN_x1b5g5r5 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5),
 691     PIXMAN_a4r4g4b4 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4),
 692     PIXMAN_x4r4g4b4 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4),
 693     PIXMAN_a4b4g4r4 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4),
 694     PIXMAN_x4b4g4r4 =    PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4),
 695
 696 /* 8bpp formats */
 697     PIXMAN_a8 =          PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0),
 698     PIXMAN_r3g3b2 =      PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2),
 699     PIXMAN_b2g3r3 =      PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2),
 700     PIXMAN_a2r2g2b2 =    PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2),
 701     PIXMAN_a2b2g2r2 =    PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2),
 702
 703     PIXMAN_c8 =          PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0),
 704     PIXMAN_g8 =          PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0),
 705
 706     PIXMAN_x4a4 =        PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0),
 707
 708     PIXMAN_x4c4 =        PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0),
 709     PIXMAN_x4g4 =        PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0),
 710
 711 /* 4bpp formats */
 712     PIXMAN_a4 =          PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0),
 713     PIXMAN_r1g2b1 =      PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1),
 714     PIXMAN_b1g2r1 =      PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1),
 715     PIXMAN_a1r1g1b1 =    PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1),
 716     PIXMAN_a1b1g1r1 =    PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1),
 717
 718     PIXMAN_c4 =          PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0),
 719     PIXMAN_g4 =          PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0),
 720
 721 /* 1bpp formats */
 722     PIXMAN_a1 =          PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0),
 723
 724     PIXMAN_g1 =          PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0),
 725
 726 /* YUV formats */
 727     PIXMAN_yuy2 =        PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0),
 728     PIXMAN_yv12 =        PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0)
 729 } pixman_format_code_t;
 730
 731 /* Querying supported format values. */
 732 pixman_bool_t pixman_format_supported_destination (pixman_format_code_t format);
 733 pixman_bool_t pixman_format_supported_source      (pixman_format_code_t format);
 734
 735 /* Constructors */
 736 pixman_image_t *pixman_image_create_solid_fill       (pixman_color_t               *color);
 737 pixman_image_t *pixman_image_create_linear_gradient  (pixman_point_fixed_t         *p1,
 738                                                       pixman_point_fixed_t         *p2,
 739                                                       const pixman_gradient_stop_t *stops,
 740                                                       int                           n_stops);
 741 pixman_image_t *pixman_image_create_radial_gradient  (pixman_point_fixed_t         *inner,
 742                                                       pixman_point_fixed_t         *outer,
 743                                                       pixman_fixed_t                inner_radius,
 744                                                       pixman_fixed_t                outer_radius,
 745                                                       const pixman_gradient_stop_t *stops,
 746                                                       int                           n_stops);
 747 pixman_image_t *pixman_image_create_conical_gradient (pixman_point_fixed_t         *center,
 748                                                       pixman_fixed_t                angle,
 749                                                       const pixman_gradient_stop_t *stops,
 750                                                       int                           n_stops);
 751 pixman_image_t *pixman_image_create_bits             (pixman_format_code_t          format,
 752                                                       int                           width,
 753                                                       int                           height,
 754                                                       uint32_t                     *bits,
 755                                                       int                           rowstride_bytes);
 756
 757 /* Destructor */
 758 pixman_image_t *pixman_image_ref                     (pixman_image_t               *image);
 759 pixman_bool_t   pixman_image_unref                   (pixman_image_t               *image);
 760
 761 void            pixman_image_set_destroy_function    (pixman_image_t               *image,
 762                                                       pixman_image_destroy_func_t   function,
 763                                                       void                         *data);
 764 void *          pixman_image_get_destroy_data        (pixman_image_t               *image);
 765
 766 /* Set properties */
 767 pixman_bool_t   pixman_image_set_clip_region         (pixman_image_t               *image,
 768                                                       pixman_region16_t            *region);
 769 pixman_bool_t   pixman_image_set_clip_region32       (pixman_image_t               *image,
 770                                                       pixman_region32_t            *region);
 771 void            pixman_image_set_has_client_clip     (pixman_image_t               *image,
 772                                                       pixman_bool_t                 clien_clip);
 773 pixman_bool_t   pixman_image_set_transform           (pixman_image_t               *image,
 774                                                       const pixman_transform_t     *transform);
 775 void            pixman_image_set_repeat              (pixman_image_t               *image,
 776                                                       pixman_repeat_t               repeat);
 777 pixman_bool_t   pixman_image_set_filter              (pixman_image_t               *image,
 778                                                       pixman_filter_t               filter,
 779                                                       const pixman_fixed_t         *filter_params,
 780                                                       int                           n_filter_params);
 781 void            pixman_image_set_source_clipping     (pixman_image_t               *image,
 782                                                       pixman_bool_t                 source_clipping);
 783 void            pixman_image_set_alpha_map           (pixman_image_t               *image,
 784                                                       pixman_image_t               *alpha_map,
 785                                                       int16_t                       x,
 786                                                       int16_t                       y);
 787 void            pixman_image_set_component_alpha     (pixman_image_t               *image,
 788                                                       pixman_bool_t                 component_alpha);
 789 pixman_bool_t   pixman_image_get_component_alpha     (pixman_image_t               *image);
 790 void            pixman_image_set_accessors           (pixman_image_t               *image,
 791                                                       pixman_read_memory_func_t     read_func,
 792                                                       pixman_write_memory_func_t    write_func);
 793 void            pixman_image_set_indexed             (pixman_image_t               *image,
 794                                                       const pixman_indexed_t       *indexed);
 795 uint32_t       *pixman_image_get_data                (pixman_image_t               *image);
 796 int             pixman_image_get_width               (pixman_image_t               *image);
 797 int             pixman_image_get_height              (pixman_image_t               *image);
 798 int             pixman_image_get_stride              (pixman_image_t               *image); /* in bytes */
 799 int             pixman_image_get_depth               (pixman_image_t               *image);
 800 pixman_format_code_t pixman_image_get_format         (pixman_image_t               *image);
 801 pixman_bool_t   pixman_image_fill_rectangles         (pixman_op_t                   op,
 802                                                       pixman_image_t               *image,
 803                                                       pixman_color_t               *color,
 804                                                       int                           n_rects,
 805                                                       const pixman_rectangle16_t   *rects);
 806 pixman_bool_t   pixman_image_fill_boxes              (pixman_op_t                   op,
 807                                                       pixman_image_t               *dest,
 808                                                       pixman_color_t               *color,
 809                                                       int                           n_boxes,
 810                                                       const pixman_box32_t         *boxes);
 811
 812 /* Composite */
 813 pixman_bool_t pixman_compute_composite_region (pixman_region16_t *region,
 814                                                pixman_image_t    *src_image,
 815                                                pixman_image_t    *mask_image,
 816                                                pixman_image_t    *dest_image,
 817                                                int16_t            src_x,
 818                                                int16_t            src_y,
 819                                                int16_t            mask_x,
 820                                                int16_t            mask_y,
 821                                                int16_t            dest_x,
 822                                                int16_t            dest_y,
 823                                                uint16_t           width,
 824                                                uint16_t           height);
 825 void          pixman_image_composite          (pixman_op_t        op,
 826                                                pixman_image_t    *src,
 827                                                pixman_image_t    *mask,
 828                                                pixman_image_t    *dest,
 829                                                int16_t            src_x,
 830                                                int16_t            src_y,
 831                                                int16_t            mask_x,
 832                                                int16_t            mask_y,
 833                                                int16_t            dest_x,
 834                                                int16_t            dest_y,
 835                                                uint16_t           width,
 836                                                uint16_t           height);
 837 void          pixman_image_composite32        (pixman_op_t        op,
 838                                                pixman_image_t    *src,
 839                                                pixman_image_t    *mask,
 840                                                pixman_image_t    *dest,
 841                                                int32_t            src_x,
 842                                                int32_t            src_y,
 843                                                int32_t            mask_x,
 844                                                int32_t            mask_y,
 845                                                int32_t            dest_x,
 846                                                int32_t            dest_y,
 847                                                int32_t            width,
 848                                                int32_t            height);
 849
 850 /* Executive Summary: This function is a no-op that only exists
 851  * for historical reasons.
 852  *
 853  * There used to be a bug in the X server where it would rely on
 854  * out-of-bounds accesses when it was asked to composite with a
 855  * window as the source. It would create a pixman image pointing
 856  * to some bogus position in memory, but then set a clip region
 857  * to the position where the actual bits were.
 858  *
 859  * Due to a bug in old versions of pixman, where it would not clip
 860  * against the image bounds when a clip region was set, this would
 861  * actually work. So when the pixman bug was fixed, a workaround was
 862  * added to allow certain out-of-bound accesses. This function disabled
 863  * those workarounds.
 864  *
 865  * Since 0.21.2, pixman doesn't do these workarounds anymore, so now this
 866  * function is a no-op.
 867  */
 868 void pixman_disable_out_of_bounds_workaround (void);
 869
 870 /*
 871  * Trapezoids
 872  */
 873 typedef struct pixman_edge pixman_edge_t;
 874 typedef struct pixman_trapezoid pixman_trapezoid_t;
 875 typedef struct pixman_trap pixman_trap_t;
 876 typedef struct pixman_span_fix pixman_span_fix_t;
 877 typedef struct pixman_triangle pixman_triangle_t;
 878
 879 /*
 880  * An edge structure.  This represents a single polygon edge
 881  * and can be quickly stepped across small or large gaps in the
 882  * sample grid
 883  */
 884 struct pixman_edge
 885 {
 886     pixman_fixed_t      x;
 887     pixman_fixed_t      e;
 888     pixman_fixed_t      stepx;
 889     pixman_fixed_t      signdx;
 890     pixman_fixed_t      dy;
 891     pixman_fixed_t      dx;
 892
 893     pixman_fixed_t      stepx_small;
 894     pixman_fixed_t      stepx_big;
 895     pixman_fixed_t      dx_small;
 896     pixman_fixed_t      dx_big;
 897 };
 898
 899 struct pixman_trapezoid
 900 {
 901     pixman_fixed_t      top, bottom;
 902     pixman_line_fixed_t left, right;
 903 };
 904
 905 struct pixman_triangle
 906 {
 907     pixman_point_fixed_t p1, p2, p3;
 908 };
 909
 910 /* whether 't' is a well defined not obviously empty trapezoid */
 911 #define pixman_trapezoid_valid(t)                                  \
 912     ((t)->left.p1.y != (t)->left.p2.y &&                           \
 913      (t)->right.p1.y != (t)->right.p2.y &&                         \
 914      (int) ((t)->bottom - (t)->top) > 0)
 915
 916 struct pixman_span_fix
 917 {
 918     pixman_fixed_t      l, r, y;
 919 };
 920
 921 struct pixman_trap
 922 {
 923     pixman_span_fix_t   top, bot;
 924 };
 925
 926 pixman_fixed_t pixman_sample_ceil_y        (pixman_fixed_t             y,
 927                                             int                        bpp);
 928 pixman_fixed_t pixman_sample_floor_y       (pixman_fixed_t             y,
 929                                             int                        bpp);
 930 void           pixman_edge_step            (pixman_edge_t             *e,
 931                                             int                        n);
 932 void           pixman_edge_init            (pixman_edge_t             *e,
 933                                             int                        bpp,
 934                                             pixman_fixed_t             y_start,
 935                                             pixman_fixed_t             x_top,
 936                                             pixman_fixed_t             y_top,
 937                                             pixman_fixed_t             x_bot,
 938                                             pixman_fixed_t             y_bot);
 939 void           pixman_line_fixed_edge_init (pixman_edge_t             *e,
 940                                             int                        bpp,
 941                                             pixman_fixed_t             y,
 942                                             const pixman_line_fixed_t *line,
 943                                             int                        x_off,
 944                                             int                        y_off);
 945 void           pixman_rasterize_edges      (pixman_image_t            *image,
 946                                             pixman_edge_t             *l,
 947                                             pixman_edge_t             *r,
 948                                             pixman_fixed_t             t,
 949                                             pixman_fixed_t             b);
 950 void           pixman_add_traps            (pixman_image_t            *image,
 951                                             int16_t                    x_off,
 952                                             int16_t                    y_off,
 953                                             int                        ntrap,
 954                                             pixman_trap_t             *traps);
 955 void           pixman_add_trapezoids       (pixman_image_t            *image,
 956                                             int16_t                    x_off,
 957                                             int                        y_off,
 958                                             int                        ntraps,
 959                                             const pixman_trapezoid_t  *traps);
 960 void           pixman_rasterize_trapezoid  (pixman_image_t            *image,
 961                                             const pixman_trapezoid_t  *trap,
 962                                             int                        x_off,
 963                                             int                        y_off);
 964 void          pixman_composite_trapezoids (pixman_op_t                 op,
 965                                            pixman_image_t *            src,
 966                                            pixman_image_t *            dst,
 967                                            pixman_format_code_t        mask_format,
 968                                            int                         x_src,
 969                                            int                         y_src,
 970                                            int                         x_dst,
 971                                            int                         y_dst,
 972                                            int                         n_traps,
 973                                            const pixman_trapezoid_t *  traps);
 974 void          pixman_composite_triangles (pixman_op_t                  op,
 975                                           pixman_image_t *             src,
 976                                           pixman_image_t *             dst,
 977                                           pixman_format_code_t         mask_format,
 978                                           int                          x_src,
 979                                           int                          y_src,
 980                                           int                          x_dst,
 981                                           int                          y_dst,
 982                                           int                          n_tris,
 983                                           const pixman_triangle_t *    tris);
 984 void          pixman_add_triangles       (pixman_image_t              *image,
 985                                           int32_t                      x_off,
 986                                           int32_t                      y_off,
 987                                           int                          n_tris,
 988                                           const pixman_triangle_t     *tris);
 989
 990 PIXMAN_END_DECLS
 991
 992 #endif /* PIXMAN_H__ */