pixman.h revision 7fb3d851
1/*********************************************************** 2 3Copyright 1987, 1998 The Open Group 4 5Permission to use, copy, modify, distribute, and sell this software and its 6documentation for any purpose is hereby granted without fee, provided that 7the above copyright notice appear in all copies and that both that 8copyright notice and this permission notice appear in supporting 9documentation. 10 11The above copyright notice and this permission notice shall be included in 12all copies or substantial portions of the Software. 13 14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 21Except as contained in this notice, the name of The Open Group shall not be 22used in advertising or otherwise to promote the sale, use or other dealings 23in this Software without prior written authorization from The Open Group. 24 25Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. 26 27 All Rights Reserved 28 29Permission to use, copy, modify, and distribute this software and its 30documentation for any purpose and without fee is hereby granted, 31provided that the above copyright notice appear in all copies and that 32both that copyright notice and this permission notice appear in 33supporting documentation, and that the name of Digital not be 34used in advertising or publicity pertaining to distribution of the 35software without specific, written prior permission. 36 37DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 39DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 43SOFTWARE. 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 82PIXMAN_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 94typedef __int8 int8_t; 95typedef unsigned __int8 uint8_t; 96typedef __int16 int16_t; 97typedef unsigned __int16 uint16_t; 98typedef __int32 int32_t; 99typedef unsigned __int32 uint32_t; 100typedef __int64 int64_t; 101typedef 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 */ 113typedef int pixman_bool_t; 114 115/* 116 * Fixpoint numbers 117 */ 118typedef int64_t pixman_fixed_32_32_t; 119typedef pixman_fixed_32_32_t pixman_fixed_48_16_t; 120typedef uint32_t pixman_fixed_1_31_t; 121typedef uint32_t pixman_fixed_1_16_t; 122typedef int32_t pixman_fixed_16_16_t; 123typedef 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) * 65536)) 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 */ 144typedef struct pixman_color pixman_color_t; 145typedef struct pixman_point_fixed pixman_point_fixed_t; 146typedef struct pixman_line_fixed pixman_line_fixed_t; 147typedef struct pixman_vector pixman_vector_t; 148typedef struct pixman_transform pixman_transform_t; 149 150struct pixman_color 151{ 152 uint16_t red; 153 uint16_t green; 154 uint16_t blue; 155 uint16_t alpha; 156}; 157 158struct pixman_point_fixed 159{ 160 pixman_fixed_t x; 161 pixman_fixed_t y; 162}; 163 164struct pixman_line_fixed 165{ 166 pixman_point_fixed_t p1, p2; 167}; 168 169/* 170 * Fixed point matrices 171 */ 172 173struct pixman_vector 174{ 175 pixman_fixed_t vector[3]; 176}; 177 178struct pixman_transform 179{ 180 pixman_fixed_t matrix[3][3]; 181}; 182 183/* forward declaration (sorry) */ 184struct pixman_box16; 185typedef union pixman_image pixman_image_t; 186 187void pixman_transform_init_identity (struct pixman_transform *matrix); 188pixman_bool_t pixman_transform_point_3d (const struct pixman_transform *transform, 189 struct pixman_vector *vector); 190pixman_bool_t pixman_transform_point (const struct pixman_transform *transform, 191 struct pixman_vector *vector); 192pixman_bool_t pixman_transform_multiply (struct pixman_transform *dst, 193 const struct pixman_transform *l, 194 const struct pixman_transform *r); 195void pixman_transform_init_scale (struct pixman_transform *t, 196 pixman_fixed_t sx, 197 pixman_fixed_t sy); 198pixman_bool_t pixman_transform_scale (struct pixman_transform *forward, 199 struct pixman_transform *reverse, 200 pixman_fixed_t sx, 201 pixman_fixed_t sy); 202void pixman_transform_init_rotate (struct pixman_transform *t, 203 pixman_fixed_t cos, 204 pixman_fixed_t sin); 205pixman_bool_t pixman_transform_rotate (struct pixman_transform *forward, 206 struct pixman_transform *reverse, 207 pixman_fixed_t c, 208 pixman_fixed_t s); 209void pixman_transform_init_translate (struct pixman_transform *t, 210 pixman_fixed_t tx, 211 pixman_fixed_t ty); 212pixman_bool_t pixman_transform_translate (struct pixman_transform *forward, 213 struct pixman_transform *reverse, 214 pixman_fixed_t tx, 215 pixman_fixed_t ty); 216pixman_bool_t pixman_transform_bounds (const struct pixman_transform *matrix, 217 struct pixman_box16 *b); 218pixman_bool_t pixman_transform_invert (struct pixman_transform *dst, 219 const struct pixman_transform *src); 220pixman_bool_t pixman_transform_is_identity (const struct pixman_transform *t); 221pixman_bool_t pixman_transform_is_scale (const struct pixman_transform *t); 222pixman_bool_t pixman_transform_is_int_translate (const struct pixman_transform *t); 223pixman_bool_t pixman_transform_is_inverse (const struct pixman_transform *a, 224 const struct pixman_transform *b); 225 226/* 227 * Floating point matrices 228 */ 229typedef struct pixman_f_transform pixman_f_transform_t; 230typedef struct pixman_f_vector pixman_f_vector_t; 231 232struct pixman_f_vector 233{ 234 double v[3]; 235}; 236 237struct pixman_f_transform 238{ 239 double m[3][3]; 240}; 241 242pixman_bool_t pixman_transform_from_pixman_f_transform (struct pixman_transform *t, 243 const struct pixman_f_transform *ft); 244void pixman_f_transform_from_pixman_transform (struct pixman_f_transform *ft, 245 const struct pixman_transform *t); 246pixman_bool_t pixman_f_transform_invert (struct pixman_f_transform *dst, 247 const struct pixman_f_transform *src); 248pixman_bool_t pixman_f_transform_point (const struct pixman_f_transform *t, 249 struct pixman_f_vector *v); 250void pixman_f_transform_point_3d (const struct pixman_f_transform *t, 251 struct pixman_f_vector *v); 252void pixman_f_transform_multiply (struct pixman_f_transform *dst, 253 const struct pixman_f_transform *l, 254 const struct pixman_f_transform *r); 255void pixman_f_transform_init_scale (struct pixman_f_transform *t, 256 double sx, 257 double sy); 258pixman_bool_t pixman_f_transform_scale (struct pixman_f_transform *forward, 259 struct pixman_f_transform *reverse, 260 double sx, 261 double sy); 262void pixman_f_transform_init_rotate (struct pixman_f_transform *t, 263 double cos, 264 double sin); 265pixman_bool_t pixman_f_transform_rotate (struct pixman_f_transform *forward, 266 struct pixman_f_transform *reverse, 267 double c, 268 double s); 269void pixman_f_transform_init_translate (struct pixman_f_transform *t, 270 double tx, 271 double ty); 272pixman_bool_t pixman_f_transform_translate (struct pixman_f_transform *forward, 273 struct pixman_f_transform *reverse, 274 double tx, 275 double ty); 276pixman_bool_t pixman_f_transform_bounds (const struct pixman_f_transform *t, 277 struct pixman_box16 *b); 278void pixman_f_transform_init_identity (struct pixman_f_transform *t); 279 280typedef enum 281{ 282 PIXMAN_REPEAT_NONE, 283 PIXMAN_REPEAT_NORMAL, 284 PIXMAN_REPEAT_PAD, 285 PIXMAN_REPEAT_REFLECT 286} pixman_repeat_t; 287 288typedef enum 289{ 290 PIXMAN_FILTER_FAST, 291 PIXMAN_FILTER_GOOD, 292 PIXMAN_FILTER_BEST, 293 PIXMAN_FILTER_NEAREST, 294 PIXMAN_FILTER_BILINEAR, 295 PIXMAN_FILTER_CONVOLUTION, 296 297 /* The SEPARABLE_CONVOLUTION filter takes the following parameters: 298 * 299 * width: integer given as 16.16 fixpoint number 300 * height: integer given as 16.16 fixpoint number 301 * x_phase_bits: integer given as 16.16 fixpoint 302 * y_phase_bits: integer given as 16.16 fixpoint 303 * xtables: (1 << x_phase_bits) tables of size width 304 * ytables: (1 << y_phase_bits) tables of size height 305 * 306 * When sampling at (x, y), the location is first rounded to one of 307 * n_x_phases * n_y_phases subpixel positions. These subpixel positions 308 * determine an xtable and a ytable to use. 309 * 310 * Conceptually a width x height matrix is then formed in which each entry 311 * is the product of the corresponding entries in the x and y tables. 312 * This matrix is then aligned with the image pixels such that its center 313 * is as close as possible to the subpixel location chosen earlier. Then 314 * the image is convolved with the matrix and the resulting pixel returned. 315 */ 316 PIXMAN_FILTER_SEPARABLE_CONVOLUTION 317} pixman_filter_t; 318 319typedef enum 320{ 321 PIXMAN_OP_CLEAR = 0x00, 322 PIXMAN_OP_SRC = 0x01, 323 PIXMAN_OP_DST = 0x02, 324 PIXMAN_OP_OVER = 0x03, 325 PIXMAN_OP_OVER_REVERSE = 0x04, 326 PIXMAN_OP_IN = 0x05, 327 PIXMAN_OP_IN_REVERSE = 0x06, 328 PIXMAN_OP_OUT = 0x07, 329 PIXMAN_OP_OUT_REVERSE = 0x08, 330 PIXMAN_OP_ATOP = 0x09, 331 PIXMAN_OP_ATOP_REVERSE = 0x0a, 332 PIXMAN_OP_XOR = 0x0b, 333 PIXMAN_OP_ADD = 0x0c, 334 PIXMAN_OP_SATURATE = 0x0d, 335 336 PIXMAN_OP_DISJOINT_CLEAR = 0x10, 337 PIXMAN_OP_DISJOINT_SRC = 0x11, 338 PIXMAN_OP_DISJOINT_DST = 0x12, 339 PIXMAN_OP_DISJOINT_OVER = 0x13, 340 PIXMAN_OP_DISJOINT_OVER_REVERSE = 0x14, 341 PIXMAN_OP_DISJOINT_IN = 0x15, 342 PIXMAN_OP_DISJOINT_IN_REVERSE = 0x16, 343 PIXMAN_OP_DISJOINT_OUT = 0x17, 344 PIXMAN_OP_DISJOINT_OUT_REVERSE = 0x18, 345 PIXMAN_OP_DISJOINT_ATOP = 0x19, 346 PIXMAN_OP_DISJOINT_ATOP_REVERSE = 0x1a, 347 PIXMAN_OP_DISJOINT_XOR = 0x1b, 348 349 PIXMAN_OP_CONJOINT_CLEAR = 0x20, 350 PIXMAN_OP_CONJOINT_SRC = 0x21, 351 PIXMAN_OP_CONJOINT_DST = 0x22, 352 PIXMAN_OP_CONJOINT_OVER = 0x23, 353 PIXMAN_OP_CONJOINT_OVER_REVERSE = 0x24, 354 PIXMAN_OP_CONJOINT_IN = 0x25, 355 PIXMAN_OP_CONJOINT_IN_REVERSE = 0x26, 356 PIXMAN_OP_CONJOINT_OUT = 0x27, 357 PIXMAN_OP_CONJOINT_OUT_REVERSE = 0x28, 358 PIXMAN_OP_CONJOINT_ATOP = 0x29, 359 PIXMAN_OP_CONJOINT_ATOP_REVERSE = 0x2a, 360 PIXMAN_OP_CONJOINT_XOR = 0x2b, 361 362 PIXMAN_OP_MULTIPLY = 0x30, 363 PIXMAN_OP_SCREEN = 0x31, 364 PIXMAN_OP_OVERLAY = 0x32, 365 PIXMAN_OP_DARKEN = 0x33, 366 PIXMAN_OP_LIGHTEN = 0x34, 367 PIXMAN_OP_COLOR_DODGE = 0x35, 368 PIXMAN_OP_COLOR_BURN = 0x36, 369 PIXMAN_OP_HARD_LIGHT = 0x37, 370 PIXMAN_OP_SOFT_LIGHT = 0x38, 371 PIXMAN_OP_DIFFERENCE = 0x39, 372 PIXMAN_OP_EXCLUSION = 0x3a, 373 PIXMAN_OP_HSL_HUE = 0x3b, 374 PIXMAN_OP_HSL_SATURATION = 0x3c, 375 PIXMAN_OP_HSL_COLOR = 0x3d, 376 PIXMAN_OP_HSL_LUMINOSITY = 0x3e 377 378#ifdef PIXMAN_USE_INTERNAL_API 379 , 380 PIXMAN_N_OPERATORS, 381 PIXMAN_OP_NONE = PIXMAN_N_OPERATORS, 382 PIXMAN_OP_any = PIXMAN_N_OPERATORS + 1 383#endif 384} pixman_op_t; 385 386/* 387 * Regions 388 */ 389typedef struct pixman_region16_data pixman_region16_data_t; 390typedef struct pixman_box16 pixman_box16_t; 391typedef struct pixman_rectangle16 pixman_rectangle16_t; 392typedef struct pixman_region16 pixman_region16_t; 393 394struct pixman_region16_data { 395 long size; 396 long numRects; 397/* pixman_box16_t rects[size]; in memory but not explicitly declared */ 398}; 399 400struct pixman_rectangle16 401{ 402 int16_t x, y; 403 uint16_t width, height; 404}; 405 406struct pixman_box16 407{ 408 int16_t x1, y1, x2, y2; 409}; 410 411struct pixman_region16 412{ 413 pixman_box16_t extents; 414 pixman_region16_data_t *data; 415}; 416 417typedef enum 418{ 419 PIXMAN_REGION_OUT, 420 PIXMAN_REGION_IN, 421 PIXMAN_REGION_PART 422} pixman_region_overlap_t; 423 424/* This function exists only to make it possible to preserve 425 * the X ABI - it should go away at first opportunity. 426 */ 427void pixman_region_set_static_pointers (pixman_box16_t *empty_box, 428 pixman_region16_data_t *empty_data, 429 pixman_region16_data_t *broken_data); 430 431/* creation/destruction */ 432void pixman_region_init (pixman_region16_t *region); 433void pixman_region_init_rect (pixman_region16_t *region, 434 int x, 435 int y, 436 unsigned int width, 437 unsigned int height); 438pixman_bool_t pixman_region_init_rects (pixman_region16_t *region, 439 const pixman_box16_t *boxes, 440 int count); 441void pixman_region_init_with_extents (pixman_region16_t *region, 442 pixman_box16_t *extents); 443void pixman_region_init_from_image (pixman_region16_t *region, 444 pixman_image_t *image); 445void pixman_region_fini (pixman_region16_t *region); 446 447 448/* manipulation */ 449void pixman_region_translate (pixman_region16_t *region, 450 int x, 451 int y); 452pixman_bool_t pixman_region_copy (pixman_region16_t *dest, 453 pixman_region16_t *source); 454pixman_bool_t pixman_region_intersect (pixman_region16_t *new_reg, 455 pixman_region16_t *reg1, 456 pixman_region16_t *reg2); 457pixman_bool_t pixman_region_union (pixman_region16_t *new_reg, 458 pixman_region16_t *reg1, 459 pixman_region16_t *reg2); 460pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest, 461 pixman_region16_t *source, 462 int x, 463 int y, 464 unsigned int width, 465 unsigned int height); 466pixman_bool_t pixman_region_intersect_rect (pixman_region16_t *dest, 467 pixman_region16_t *source, 468 int x, 469 int y, 470 unsigned int width, 471 unsigned int height); 472pixman_bool_t pixman_region_subtract (pixman_region16_t *reg_d, 473 pixman_region16_t *reg_m, 474 pixman_region16_t *reg_s); 475pixman_bool_t pixman_region_inverse (pixman_region16_t *new_reg, 476 pixman_region16_t *reg1, 477 pixman_box16_t *inv_rect); 478pixman_bool_t pixman_region_contains_point (pixman_region16_t *region, 479 int x, 480 int y, 481 pixman_box16_t *box); 482pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *region, 483 pixman_box16_t *prect); 484pixman_bool_t pixman_region_not_empty (pixman_region16_t *region); 485pixman_box16_t * pixman_region_extents (pixman_region16_t *region); 486int pixman_region_n_rects (pixman_region16_t *region); 487pixman_box16_t * pixman_region_rectangles (pixman_region16_t *region, 488 int *n_rects); 489pixman_bool_t pixman_region_equal (pixman_region16_t *region1, 490 pixman_region16_t *region2); 491pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region); 492void pixman_region_reset (pixman_region16_t *region, 493 pixman_box16_t *box); 494void pixman_region_clear (pixman_region16_t *region); 495/* 496 * 32 bit regions 497 */ 498typedef struct pixman_region32_data pixman_region32_data_t; 499typedef struct pixman_box32 pixman_box32_t; 500typedef struct pixman_rectangle32 pixman_rectangle32_t; 501typedef struct pixman_region32 pixman_region32_t; 502 503struct pixman_region32_data { 504 long size; 505 long numRects; 506/* pixman_box32_t rects[size]; in memory but not explicitly declared */ 507}; 508 509struct pixman_rectangle32 510{ 511 int32_t x, y; 512 uint32_t width, height; 513}; 514 515struct pixman_box32 516{ 517 int32_t x1, y1, x2, y2; 518}; 519 520struct pixman_region32 521{ 522 pixman_box32_t extents; 523 pixman_region32_data_t *data; 524}; 525 526/* creation/destruction */ 527void pixman_region32_init (pixman_region32_t *region); 528void pixman_region32_init_rect (pixman_region32_t *region, 529 int x, 530 int y, 531 unsigned int width, 532 unsigned int height); 533pixman_bool_t pixman_region32_init_rects (pixman_region32_t *region, 534 const pixman_box32_t *boxes, 535 int count); 536void pixman_region32_init_with_extents (pixman_region32_t *region, 537 pixman_box32_t *extents); 538void pixman_region32_init_from_image (pixman_region32_t *region, 539 pixman_image_t *image); 540void pixman_region32_fini (pixman_region32_t *region); 541 542 543/* manipulation */ 544void pixman_region32_translate (pixman_region32_t *region, 545 int x, 546 int y); 547pixman_bool_t pixman_region32_copy (pixman_region32_t *dest, 548 pixman_region32_t *source); 549pixman_bool_t pixman_region32_intersect (pixman_region32_t *new_reg, 550 pixman_region32_t *reg1, 551 pixman_region32_t *reg2); 552pixman_bool_t pixman_region32_union (pixman_region32_t *new_reg, 553 pixman_region32_t *reg1, 554 pixman_region32_t *reg2); 555pixman_bool_t pixman_region32_intersect_rect (pixman_region32_t *dest, 556 pixman_region32_t *source, 557 int x, 558 int y, 559 unsigned int width, 560 unsigned int height); 561pixman_bool_t pixman_region32_union_rect (pixman_region32_t *dest, 562 pixman_region32_t *source, 563 int x, 564 int y, 565 unsigned int width, 566 unsigned int height); 567pixman_bool_t pixman_region32_subtract (pixman_region32_t *reg_d, 568 pixman_region32_t *reg_m, 569 pixman_region32_t *reg_s); 570pixman_bool_t pixman_region32_inverse (pixman_region32_t *new_reg, 571 pixman_region32_t *reg1, 572 pixman_box32_t *inv_rect); 573pixman_bool_t pixman_region32_contains_point (pixman_region32_t *region, 574 int x, 575 int y, 576 pixman_box32_t *box); 577pixman_region_overlap_t pixman_region32_contains_rectangle (pixman_region32_t *region, 578 pixman_box32_t *prect); 579pixman_bool_t pixman_region32_not_empty (pixman_region32_t *region); 580pixman_box32_t * pixman_region32_extents (pixman_region32_t *region); 581int pixman_region32_n_rects (pixman_region32_t *region); 582pixman_box32_t * pixman_region32_rectangles (pixman_region32_t *region, 583 int *n_rects); 584pixman_bool_t pixman_region32_equal (pixman_region32_t *region1, 585 pixman_region32_t *region2); 586pixman_bool_t pixman_region32_selfcheck (pixman_region32_t *region); 587void pixman_region32_reset (pixman_region32_t *region, 588 pixman_box32_t *box); 589void pixman_region32_clear (pixman_region32_t *region); 590 591 592/* Copy / Fill / Misc */ 593pixman_bool_t pixman_blt (uint32_t *src_bits, 594 uint32_t *dst_bits, 595 int src_stride, 596 int dst_stride, 597 int src_bpp, 598 int dst_bpp, 599 int src_x, 600 int src_y, 601 int dest_x, 602 int dest_y, 603 int width, 604 int height); 605pixman_bool_t pixman_fill (uint32_t *bits, 606 int stride, 607 int bpp, 608 int x, 609 int y, 610 int width, 611 int height, 612 uint32_t _xor); 613 614int pixman_version (void); 615const char* pixman_version_string (void); 616 617/* 618 * Images 619 */ 620typedef struct pixman_indexed pixman_indexed_t; 621typedef struct pixman_gradient_stop pixman_gradient_stop_t; 622 623typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size); 624typedef void (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size); 625 626typedef void (* pixman_image_destroy_func_t) (pixman_image_t *image, void *data); 627 628struct pixman_gradient_stop { 629 pixman_fixed_t x; 630 pixman_color_t color; 631}; 632 633#define PIXMAN_MAX_INDEXED 256 /* XXX depth must be <= 8 */ 634 635#if PIXMAN_MAX_INDEXED <= 256 636typedef uint8_t pixman_index_type; 637#endif 638 639struct pixman_indexed 640{ 641 pixman_bool_t color; 642 uint32_t rgba[PIXMAN_MAX_INDEXED]; 643 pixman_index_type ent[32768]; 644}; 645 646/* 647 * While the protocol is generous in format support, the 648 * sample implementation allows only packed RGB and GBR 649 * representations for data to simplify software rendering, 650 */ 651#define PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \ 652 ((type) << 16) | \ 653 ((a) << 12) | \ 654 ((r) << 8) | \ 655 ((g) << 4) | \ 656 ((b))) 657 658#define PIXMAN_FORMAT_BYTE(bpp,type,a,r,g,b) \ 659 (((bpp >> 3) << 24) | \ 660 (3 << 22) | ((type) << 16) | \ 661 ((a >> 3) << 12) | \ 662 ((r >> 3) << 8) | \ 663 ((g >> 3) << 4) | \ 664 ((b >> 3))) 665 666#define PIXMAN_FORMAT_RESHIFT(val, ofs, num) \ 667 (((val >> (ofs)) & ((1 << (num)) - 1)) << ((val >> 22) & 3)) 668 669#define PIXMAN_FORMAT_BPP(f) PIXMAN_FORMAT_RESHIFT(f, 24, 8) 670#define PIXMAN_FORMAT_SHIFT(f) ((uint32_t)((f >> 22) & 3)) 671#define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0x3f) 672#define PIXMAN_FORMAT_A(f) PIXMAN_FORMAT_RESHIFT(f, 12, 4) 673#define PIXMAN_FORMAT_R(f) PIXMAN_FORMAT_RESHIFT(f, 8, 4) 674#define PIXMAN_FORMAT_G(f) PIXMAN_FORMAT_RESHIFT(f, 4, 4) 675#define PIXMAN_FORMAT_B(f) PIXMAN_FORMAT_RESHIFT(f, 0, 4) 676#define PIXMAN_FORMAT_RGB(f) (((f) ) & 0xfff) 677#define PIXMAN_FORMAT_VIS(f) (((f) ) & 0xffff) 678#define PIXMAN_FORMAT_DEPTH(f) (PIXMAN_FORMAT_A(f) + \ 679 PIXMAN_FORMAT_R(f) + \ 680 PIXMAN_FORMAT_G(f) + \ 681 PIXMAN_FORMAT_B(f)) 682 683#define PIXMAN_TYPE_OTHER 0 684#define PIXMAN_TYPE_A 1 685#define PIXMAN_TYPE_ARGB 2 686#define PIXMAN_TYPE_ABGR 3 687#define PIXMAN_TYPE_COLOR 4 688#define PIXMAN_TYPE_GRAY 5 689#define PIXMAN_TYPE_YUY2 6 690#define PIXMAN_TYPE_YV12 7 691#define PIXMAN_TYPE_BGRA 8 692#define PIXMAN_TYPE_RGBA 9 693#define PIXMAN_TYPE_ARGB_SRGB 10 694#define PIXMAN_TYPE_RGBA_FLOAT 11 695 696#define PIXMAN_FORMAT_COLOR(f) \ 697 (PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ARGB || \ 698 PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ABGR || \ 699 PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_BGRA || \ 700 PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_RGBA || \ 701 PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_RGBA_FLOAT) 702 703typedef enum { 704/* 128bpp formats */ 705 PIXMAN_rgba_float = PIXMAN_FORMAT_BYTE(128,PIXMAN_TYPE_RGBA_FLOAT,32,32,32,32), 706/* 96bpp formats */ 707 PIXMAN_rgb_float = PIXMAN_FORMAT_BYTE(96,PIXMAN_TYPE_RGBA_FLOAT,0,32,32,32), 708 709/* 32bpp formats */ 710 PIXMAN_a8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8), 711 PIXMAN_x8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8), 712 PIXMAN_a8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8), 713 PIXMAN_x8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8), 714 PIXMAN_b8g8r8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,8,8,8,8), 715 PIXMAN_b8g8r8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,0,8,8,8), 716 PIXMAN_r8g8b8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,8,8,8,8), 717 PIXMAN_r8g8b8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,0,8,8,8), 718 PIXMAN_x14r6g6b6 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,6,6,6), 719 PIXMAN_x2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,10,10,10), 720 PIXMAN_a2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,2,10,10,10), 721 PIXMAN_x2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,10,10,10), 722 PIXMAN_a2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,2,10,10,10), 723 724/* sRGB formats */ 725 PIXMAN_a8r8g8b8_sRGB = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB_SRGB,8,8,8,8), 726 727/* 24bpp formats */ 728 PIXMAN_r8g8b8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8), 729 PIXMAN_b8g8r8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8), 730 731/* 16bpp formats */ 732 PIXMAN_r5g6b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5), 733 PIXMAN_b5g6r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5), 734 735 PIXMAN_a1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5), 736 PIXMAN_x1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5), 737 PIXMAN_a1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5), 738 PIXMAN_x1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5), 739 PIXMAN_a4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4), 740 PIXMAN_x4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4), 741 PIXMAN_a4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4), 742 PIXMAN_x4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4), 743 744/* 8bpp formats */ 745 PIXMAN_a8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0), 746 PIXMAN_r3g3b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2), 747 PIXMAN_b2g3r3 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2), 748 PIXMAN_a2r2g2b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2), 749 PIXMAN_a2b2g2r2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2), 750 751 PIXMAN_c8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), 752 PIXMAN_g8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), 753 754 PIXMAN_x4a4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0), 755 756 PIXMAN_x4c4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), 757 PIXMAN_x4g4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), 758 759/* 4bpp formats */ 760 PIXMAN_a4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0), 761 PIXMAN_r1g2b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1), 762 PIXMAN_b1g2r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1), 763 PIXMAN_a1r1g1b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1), 764 PIXMAN_a1b1g1r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1), 765 766 PIXMAN_c4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0), 767 PIXMAN_g4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0), 768 769/* 1bpp formats */ 770 PIXMAN_a1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0), 771 772 PIXMAN_g1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0), 773 774/* YUV formats */ 775 PIXMAN_yuy2 = PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0), 776 PIXMAN_yv12 = PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0) 777} pixman_format_code_t; 778 779/* Querying supported format values. */ 780pixman_bool_t pixman_format_supported_destination (pixman_format_code_t format); 781pixman_bool_t pixman_format_supported_source (pixman_format_code_t format); 782 783/* Constructors */ 784pixman_image_t *pixman_image_create_solid_fill (const pixman_color_t *color); 785pixman_image_t *pixman_image_create_linear_gradient (const pixman_point_fixed_t *p1, 786 const pixman_point_fixed_t *p2, 787 const pixman_gradient_stop_t *stops, 788 int n_stops); 789pixman_image_t *pixman_image_create_radial_gradient (const pixman_point_fixed_t *inner, 790 const pixman_point_fixed_t *outer, 791 pixman_fixed_t inner_radius, 792 pixman_fixed_t outer_radius, 793 const pixman_gradient_stop_t *stops, 794 int n_stops); 795pixman_image_t *pixman_image_create_conical_gradient (const pixman_point_fixed_t *center, 796 pixman_fixed_t angle, 797 const pixman_gradient_stop_t *stops, 798 int n_stops); 799pixman_image_t *pixman_image_create_bits (pixman_format_code_t format, 800 int width, 801 int height, 802 uint32_t *bits, 803 int rowstride_bytes); 804pixman_image_t *pixman_image_create_bits_no_clear (pixman_format_code_t format, 805 int width, 806 int height, 807 uint32_t * bits, 808 int rowstride_bytes); 809 810/* Destructor */ 811pixman_image_t *pixman_image_ref (pixman_image_t *image); 812pixman_bool_t pixman_image_unref (pixman_image_t *image); 813 814void pixman_image_set_destroy_function (pixman_image_t *image, 815 pixman_image_destroy_func_t function, 816 void *data); 817void * pixman_image_get_destroy_data (pixman_image_t *image); 818 819/* Set properties */ 820pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image, 821 pixman_region16_t *region); 822pixman_bool_t pixman_image_set_clip_region32 (pixman_image_t *image, 823 pixman_region32_t *region); 824void pixman_image_set_has_client_clip (pixman_image_t *image, 825 pixman_bool_t clien_clip); 826pixman_bool_t pixman_image_set_transform (pixman_image_t *image, 827 const pixman_transform_t *transform); 828void pixman_image_set_repeat (pixman_image_t *image, 829 pixman_repeat_t repeat); 830pixman_bool_t pixman_image_set_filter (pixman_image_t *image, 831 pixman_filter_t filter, 832 const pixman_fixed_t *filter_params, 833 int n_filter_params); 834void pixman_image_set_source_clipping (pixman_image_t *image, 835 pixman_bool_t source_clipping); 836void pixman_image_set_alpha_map (pixman_image_t *image, 837 pixman_image_t *alpha_map, 838 int16_t x, 839 int16_t y); 840void pixman_image_set_component_alpha (pixman_image_t *image, 841 pixman_bool_t component_alpha); 842pixman_bool_t pixman_image_get_component_alpha (pixman_image_t *image); 843void pixman_image_set_accessors (pixman_image_t *image, 844 pixman_read_memory_func_t read_func, 845 pixman_write_memory_func_t write_func); 846void pixman_image_set_indexed (pixman_image_t *image, 847 const pixman_indexed_t *indexed); 848uint32_t *pixman_image_get_data (pixman_image_t *image); 849int pixman_image_get_width (pixman_image_t *image); 850int pixman_image_get_height (pixman_image_t *image); 851int pixman_image_get_stride (pixman_image_t *image); /* in bytes */ 852int pixman_image_get_depth (pixman_image_t *image); 853pixman_format_code_t pixman_image_get_format (pixman_image_t *image); 854 855typedef enum 856{ 857 PIXMAN_KERNEL_IMPULSE, 858 PIXMAN_KERNEL_BOX, 859 PIXMAN_KERNEL_LINEAR, 860 PIXMAN_KERNEL_CUBIC, 861 PIXMAN_KERNEL_GAUSSIAN, 862 PIXMAN_KERNEL_LANCZOS2, 863 PIXMAN_KERNEL_LANCZOS3, 864 PIXMAN_KERNEL_LANCZOS3_STRETCHED /* Jim Blinn's 'nice' filter */ 865} pixman_kernel_t; 866 867/* Create the parameter list for a SEPARABLE_CONVOLUTION filter 868 * with the given kernels and scale parameters. 869 */ 870pixman_fixed_t * 871pixman_filter_create_separable_convolution (int *n_values, 872 pixman_fixed_t scale_x, 873 pixman_fixed_t scale_y, 874 pixman_kernel_t reconstruct_x, 875 pixman_kernel_t reconstruct_y, 876 pixman_kernel_t sample_x, 877 pixman_kernel_t sample_y, 878 int subsample_bits_x, 879 int subsample_bits_y); 880 881pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op, 882 pixman_image_t *image, 883 const pixman_color_t *color, 884 int n_rects, 885 const pixman_rectangle16_t *rects); 886pixman_bool_t pixman_image_fill_boxes (pixman_op_t op, 887 pixman_image_t *dest, 888 const pixman_color_t *color, 889 int n_boxes, 890 const pixman_box32_t *boxes); 891 892/* Composite */ 893pixman_bool_t pixman_compute_composite_region (pixman_region16_t *region, 894 pixman_image_t *src_image, 895 pixman_image_t *mask_image, 896 pixman_image_t *dest_image, 897 int16_t src_x, 898 int16_t src_y, 899 int16_t mask_x, 900 int16_t mask_y, 901 int16_t dest_x, 902 int16_t dest_y, 903 uint16_t width, 904 uint16_t height); 905void pixman_image_composite (pixman_op_t op, 906 pixman_image_t *src, 907 pixman_image_t *mask, 908 pixman_image_t *dest, 909 int16_t src_x, 910 int16_t src_y, 911 int16_t mask_x, 912 int16_t mask_y, 913 int16_t dest_x, 914 int16_t dest_y, 915 uint16_t width, 916 uint16_t height); 917void pixman_image_composite32 (pixman_op_t op, 918 pixman_image_t *src, 919 pixman_image_t *mask, 920 pixman_image_t *dest, 921 int32_t src_x, 922 int32_t src_y, 923 int32_t mask_x, 924 int32_t mask_y, 925 int32_t dest_x, 926 int32_t dest_y, 927 int32_t width, 928 int32_t height); 929 930/* Executive Summary: This function is a no-op that only exists 931 * for historical reasons. 932 * 933 * There used to be a bug in the X server where it would rely on 934 * out-of-bounds accesses when it was asked to composite with a 935 * window as the source. It would create a pixman image pointing 936 * to some bogus position in memory, but then set a clip region 937 * to the position where the actual bits were. 938 * 939 * Due to a bug in old versions of pixman, where it would not clip 940 * against the image bounds when a clip region was set, this would 941 * actually work. So when the pixman bug was fixed, a workaround was 942 * added to allow certain out-of-bound accesses. This function disabled 943 * those workarounds. 944 * 945 * Since 0.21.2, pixman doesn't do these workarounds anymore, so now this 946 * function is a no-op. 947 */ 948void pixman_disable_out_of_bounds_workaround (void); 949 950/* 951 * Glyphs 952 */ 953typedef struct pixman_glyph_cache_t pixman_glyph_cache_t; 954typedef struct 955{ 956 int x, y; 957 const void *glyph; 958} pixman_glyph_t; 959 960pixman_glyph_cache_t *pixman_glyph_cache_create (void); 961void pixman_glyph_cache_destroy (pixman_glyph_cache_t *cache); 962void pixman_glyph_cache_freeze (pixman_glyph_cache_t *cache); 963void pixman_glyph_cache_thaw (pixman_glyph_cache_t *cache); 964const void * pixman_glyph_cache_lookup (pixman_glyph_cache_t *cache, 965 void *font_key, 966 void *glyph_key); 967const void * pixman_glyph_cache_insert (pixman_glyph_cache_t *cache, 968 void *font_key, 969 void *glyph_key, 970 int origin_x, 971 int origin_y, 972 pixman_image_t *glyph_image); 973void pixman_glyph_cache_remove (pixman_glyph_cache_t *cache, 974 void *font_key, 975 void *glyph_key); 976void pixman_glyph_get_extents (pixman_glyph_cache_t *cache, 977 int n_glyphs, 978 pixman_glyph_t *glyphs, 979 pixman_box32_t *extents); 980pixman_format_code_t pixman_glyph_get_mask_format (pixman_glyph_cache_t *cache, 981 int n_glyphs, 982 const pixman_glyph_t *glyphs); 983void pixman_composite_glyphs (pixman_op_t op, 984 pixman_image_t *src, 985 pixman_image_t *dest, 986 pixman_format_code_t mask_format, 987 int32_t src_x, 988 int32_t src_y, 989 int32_t mask_x, 990 int32_t mask_y, 991 int32_t dest_x, 992 int32_t dest_y, 993 int32_t width, 994 int32_t height, 995 pixman_glyph_cache_t *cache, 996 int n_glyphs, 997 const pixman_glyph_t *glyphs); 998void pixman_composite_glyphs_no_mask (pixman_op_t op, 999 pixman_image_t *src, 1000 pixman_image_t *dest, 1001 int32_t src_x, 1002 int32_t src_y, 1003 int32_t dest_x, 1004 int32_t dest_y, 1005 pixman_glyph_cache_t *cache, 1006 int n_glyphs, 1007 const pixman_glyph_t *glyphs); 1008 1009/* 1010 * Trapezoids 1011 */ 1012typedef struct pixman_edge pixman_edge_t; 1013typedef struct pixman_trapezoid pixman_trapezoid_t; 1014typedef struct pixman_trap pixman_trap_t; 1015typedef struct pixman_span_fix pixman_span_fix_t; 1016typedef struct pixman_triangle pixman_triangle_t; 1017 1018/* 1019 * An edge structure. This represents a single polygon edge 1020 * and can be quickly stepped across small or large gaps in the 1021 * sample grid 1022 */ 1023struct pixman_edge 1024{ 1025 pixman_fixed_t x; 1026 pixman_fixed_t e; 1027 pixman_fixed_t stepx; 1028 pixman_fixed_t signdx; 1029 pixman_fixed_t dy; 1030 pixman_fixed_t dx; 1031 1032 pixman_fixed_t stepx_small; 1033 pixman_fixed_t stepx_big; 1034 pixman_fixed_t dx_small; 1035 pixman_fixed_t dx_big; 1036}; 1037 1038struct pixman_trapezoid 1039{ 1040 pixman_fixed_t top, bottom; 1041 pixman_line_fixed_t left, right; 1042}; 1043 1044struct pixman_triangle 1045{ 1046 pixman_point_fixed_t p1, p2, p3; 1047}; 1048 1049/* whether 't' is a well defined not obviously empty trapezoid */ 1050#define pixman_trapezoid_valid(t) \ 1051 ((t)->left.p1.y != (t)->left.p2.y && \ 1052 (t)->right.p1.y != (t)->right.p2.y && \ 1053 ((t)->bottom > (t)->top)) 1054 1055struct pixman_span_fix 1056{ 1057 pixman_fixed_t l, r, y; 1058}; 1059 1060struct pixman_trap 1061{ 1062 pixman_span_fix_t top, bot; 1063}; 1064 1065pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y, 1066 int bpp); 1067pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y, 1068 int bpp); 1069void pixman_edge_step (pixman_edge_t *e, 1070 int n); 1071void pixman_edge_init (pixman_edge_t *e, 1072 int bpp, 1073 pixman_fixed_t y_start, 1074 pixman_fixed_t x_top, 1075 pixman_fixed_t y_top, 1076 pixman_fixed_t x_bot, 1077 pixman_fixed_t y_bot); 1078void pixman_line_fixed_edge_init (pixman_edge_t *e, 1079 int bpp, 1080 pixman_fixed_t y, 1081 const pixman_line_fixed_t *line, 1082 int x_off, 1083 int y_off); 1084void pixman_rasterize_edges (pixman_image_t *image, 1085 pixman_edge_t *l, 1086 pixman_edge_t *r, 1087 pixman_fixed_t t, 1088 pixman_fixed_t b); 1089void pixman_add_traps (pixman_image_t *image, 1090 int16_t x_off, 1091 int16_t y_off, 1092 int ntrap, 1093 const pixman_trap_t *traps); 1094void pixman_add_trapezoids (pixman_image_t *image, 1095 int16_t x_off, 1096 int y_off, 1097 int ntraps, 1098 const pixman_trapezoid_t *traps); 1099void pixman_rasterize_trapezoid (pixman_image_t *image, 1100 const pixman_trapezoid_t *trap, 1101 int x_off, 1102 int y_off); 1103void pixman_composite_trapezoids (pixman_op_t op, 1104 pixman_image_t * src, 1105 pixman_image_t * dst, 1106 pixman_format_code_t mask_format, 1107 int x_src, 1108 int y_src, 1109 int x_dst, 1110 int y_dst, 1111 int n_traps, 1112 const pixman_trapezoid_t * traps); 1113void pixman_composite_triangles (pixman_op_t op, 1114 pixman_image_t * src, 1115 pixman_image_t * dst, 1116 pixman_format_code_t mask_format, 1117 int x_src, 1118 int y_src, 1119 int x_dst, 1120 int y_dst, 1121 int n_tris, 1122 const pixman_triangle_t * tris); 1123void pixman_add_triangles (pixman_image_t *image, 1124 int32_t x_off, 1125 int32_t y_off, 1126 int n_tris, 1127 const pixman_triangle_t *tris); 1128 1129PIXMAN_END_DECLS 1130 1131#endif /* PIXMAN_H__ */ 1132