pixman.h revision 317c648b
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/* 75 * Standard integers 76 */ 77#if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || defined (_sgi) || defined (__sun) || defined (sun) || defined (__digital__) 78# include <inttypes.h> 79#elif defined (_MSC_VER) 80typedef __int8 int8_t; 81typedef unsigned __int8 uint8_t; 82typedef __int16 int16_t; 83typedef unsigned __int16 uint16_t; 84typedef __int32 int32_t; 85typedef unsigned __int32 uint32_t; 86typedef __int64 int64_t; 87typedef unsigned __int64 uint64_t; 88#elif defined (_AIX) 89# include <sys/inttypes.h> 90#else 91# include <stdint.h> 92#endif 93 94/* 95 * Boolean 96 */ 97typedef int pixman_bool_t; 98 99/* 100 * Fixpoint numbers 101 */ 102typedef int64_t pixman_fixed_32_32_t; 103typedef pixman_fixed_32_32_t pixman_fixed_48_16_t; 104typedef uint32_t pixman_fixed_1_31_t; 105typedef uint32_t pixman_fixed_1_16_t; 106typedef int32_t pixman_fixed_16_16_t; 107typedef pixman_fixed_16_16_t pixman_fixed_t; 108 109#define pixman_fixed_e ((pixman_fixed_t) 1) 110#define pixman_fixed_1 (pixman_int_to_fixed(1)) 111#define pixman_fixed_1_minus_e (pixman_fixed_1 - pixman_fixed_e) 112#define pixman_fixed_to_int(f) ((int) ((f) >> 16)) 113#define pixman_int_to_fixed(i) ((pixman_fixed_t) ((i) << 16)) 114#define pixman_fixed_to_double(f) (double) ((f) / (double) pixman_fixed_1) 115#define pixman_double_to_fixed(d) ((pixman_fixed_t) ((d) * 65536.0)) 116#define pixman_fixed_frac(f) ((f) & pixman_fixed_1_minus_e) 117#define pixman_fixed_floor(f) ((f) & ~pixman_fixed_1_minus_e) 118#define pixman_fixed_ceil(f) pixman_fixed_floor ((f) + pixman_fixed_1_minus_e) 119#define pixman_fixed_fraction(f) ((f) & pixman_fixed_1_minus_e) 120#define pixman_fixed_mod_2(f) ((f) & (pixman_fixed1 | pixman_fixed_1_minus_e)) 121#define pixman_max_fixed_48_16 ((pixman_fixed_48_16_t) 0x7fffffff) 122#define pixman_min_fixed_48_16 (-((pixman_fixed_48_16_t) 1 << 31)) 123 124/* 125 * Misc structs 126 */ 127typedef struct pixman_color pixman_color_t; 128typedef struct pixman_point_fixed pixman_point_fixed_t; 129typedef struct pixman_line_fixed pixman_line_fixed_t; 130typedef struct pixman_vector pixman_vector_t; 131typedef struct pixman_transform pixman_transform_t; 132 133struct pixman_color 134{ 135 uint16_t red; 136 uint16_t green; 137 uint16_t blue; 138 uint16_t alpha; 139}; 140 141struct pixman_point_fixed 142{ 143 pixman_fixed_t x; 144 pixman_fixed_t y; 145}; 146 147struct pixman_line_fixed 148{ 149 pixman_point_fixed_t p1, p2; 150}; 151 152/* 153 * Fixed point matrices 154 */ 155 156struct pixman_vector 157{ 158 pixman_fixed_t vector[3]; 159}; 160 161struct pixman_transform 162{ 163 pixman_fixed_t matrix[3][3]; 164}; 165 166/* forward declaration (sorry) */ 167struct pixman_box16; 168 169void 170pixman_transform_init_identity(struct pixman_transform *matrix); 171 172pixman_bool_t 173pixman_transform_point_3d (const struct pixman_transform *transform, 174 struct pixman_vector *vector); 175 176pixman_bool_t 177pixman_transform_point(const struct pixman_transform *transform, 178 struct pixman_vector *vector); 179 180pixman_bool_t 181pixman_transform_multiply (struct pixman_transform *dst, 182 const struct pixman_transform *l, 183 const struct pixman_transform *r); 184 185void 186pixman_transform_init_scale (struct pixman_transform *t, 187 pixman_fixed_t sx, 188 pixman_fixed_t sy); 189 190pixman_bool_t 191pixman_transform_scale(struct pixman_transform *forward, 192 struct pixman_transform *reverse, 193 pixman_fixed_t sx, pixman_fixed_t sy); 194 195void 196pixman_transform_init_rotate(struct pixman_transform *t, 197 pixman_fixed_t cos, 198 pixman_fixed_t sin); 199 200pixman_bool_t 201pixman_transform_rotate(struct pixman_transform *forward, 202 struct pixman_transform *reverse, 203 pixman_fixed_t c, pixman_fixed_t s); 204 205void 206pixman_transform_init_translate(struct pixman_transform *t, 207 pixman_fixed_t tx, pixman_fixed_t ty); 208 209 210pixman_bool_t 211pixman_transform_translate(struct pixman_transform *forward, 212 struct pixman_transform *reverse, 213 pixman_fixed_t tx, pixman_fixed_t ty); 214 215pixman_bool_t 216pixman_transform_bounds(const struct pixman_transform *matrix, 217 struct pixman_box16 *b); 218 219 220pixman_bool_t 221pixman_transform_invert (struct pixman_transform *dst, 222 const struct pixman_transform *src); 223 224pixman_bool_t 225pixman_transform_is_identity(const struct pixman_transform *t); 226 227pixman_bool_t 228pixman_transform_is_scale(const struct pixman_transform *t); 229 230pixman_bool_t 231pixman_transform_is_int_translate(const struct pixman_transform *t); 232 233pixman_bool_t 234pixman_transform_is_inverse (const struct pixman_transform *a, 235 const struct pixman_transform *b); 236 237 238/* 239 * Floating point matrices 240 */ 241struct pixman_f_vector { 242 double v[3]; 243}; 244 245struct pixman_f_transform { 246 double m[3][3]; 247}; 248 249pixman_bool_t 250pixman_transform_from_pixman_f_transform (struct pixman_transform *t, 251 const struct pixman_f_transform *ft); 252 253void 254pixman_f_transform_from_pixman_transform (struct pixman_f_transform *ft, 255 const struct pixman_transform *t); 256 257pixman_bool_t 258pixman_transform_from_pixman_f_transform (struct pixman_transform *t, 259 const struct pixman_f_transform *ft); 260 261pixman_bool_t 262pixman_f_transform_invert (struct pixman_f_transform *dst, 263 const struct pixman_f_transform *src); 264 265pixman_bool_t 266pixman_f_transform_point (const struct pixman_f_transform *t, 267 struct pixman_f_vector *v); 268 269void 270pixman_f_transform_point_3d (const struct pixman_f_transform *t, 271 struct pixman_f_vector *v); 272 273 274void 275pixman_f_transform_multiply (struct pixman_f_transform *dst, 276 const struct pixman_f_transform *l, 277 const struct pixman_f_transform *r); 278 279void 280pixman_f_transform_init_scale (struct pixman_f_transform *t, double sx, double sy); 281 282pixman_bool_t 283pixman_f_transform_scale (struct pixman_f_transform *forward, 284 struct pixman_f_transform *reverse, 285 double sx, double sy); 286 287void 288pixman_f_transform_init_rotate (struct pixman_f_transform *t, double cos, double sin); 289 290pixman_bool_t 291pixman_f_transform_rotate (struct pixman_f_transform *forward, 292 struct pixman_f_transform *reverse, 293 double c, double s); 294 295void 296pixman_f_transform_init_translate (struct pixman_f_transform *t, double tx, double ty); 297 298pixman_bool_t 299pixman_f_transform_translate (struct pixman_f_transform *forward, 300 struct pixman_f_transform *reverse, 301 double tx, double ty); 302 303pixman_bool_t 304pixman_f_transform_bounds (const struct pixman_f_transform *t, struct pixman_box16 *b); 305 306void 307pixman_f_transform_init_identity (struct pixman_f_transform *t); 308 309/* Don't blame me, blame XRender */ 310typedef enum 311{ 312 PIXMAN_REPEAT_NONE, 313 PIXMAN_REPEAT_NORMAL, 314 PIXMAN_REPEAT_PAD, 315 PIXMAN_REPEAT_REFLECT 316} pixman_repeat_t; 317 318typedef enum 319{ 320 PIXMAN_FILTER_FAST, 321 PIXMAN_FILTER_GOOD, 322 PIXMAN_FILTER_BEST, 323 PIXMAN_FILTER_NEAREST, 324 PIXMAN_FILTER_BILINEAR, 325 PIXMAN_FILTER_CONVOLUTION 326} pixman_filter_t; 327 328typedef enum 329{ 330 PIXMAN_OP_CLEAR = 0x00, 331 PIXMAN_OP_SRC = 0x01, 332 PIXMAN_OP_DST = 0x02, 333 PIXMAN_OP_OVER = 0x03, 334 PIXMAN_OP_OVER_REVERSE = 0x04, 335 PIXMAN_OP_IN = 0x05, 336 PIXMAN_OP_IN_REVERSE = 0x06, 337 PIXMAN_OP_OUT = 0x07, 338 PIXMAN_OP_OUT_REVERSE = 0x08, 339 PIXMAN_OP_ATOP = 0x09, 340 PIXMAN_OP_ATOP_REVERSE = 0x0a, 341 PIXMAN_OP_XOR = 0x0b, 342 PIXMAN_OP_ADD = 0x0c, 343 PIXMAN_OP_SATURATE = 0x0d, 344 345 PIXMAN_OP_DISJOINT_CLEAR = 0x10, 346 PIXMAN_OP_DISJOINT_SRC = 0x11, 347 PIXMAN_OP_DISJOINT_DST = 0x12, 348 PIXMAN_OP_DISJOINT_OVER = 0x13, 349 PIXMAN_OP_DISJOINT_OVER_REVERSE = 0x14, 350 PIXMAN_OP_DISJOINT_IN = 0x15, 351 PIXMAN_OP_DISJOINT_IN_REVERSE = 0x16, 352 PIXMAN_OP_DISJOINT_OUT = 0x17, 353 PIXMAN_OP_DISJOINT_OUT_REVERSE = 0x18, 354 PIXMAN_OP_DISJOINT_ATOP = 0x19, 355 PIXMAN_OP_DISJOINT_ATOP_REVERSE = 0x1a, 356 PIXMAN_OP_DISJOINT_XOR = 0x1b, 357 358 PIXMAN_OP_CONJOINT_CLEAR = 0x20, 359 PIXMAN_OP_CONJOINT_SRC = 0x21, 360 PIXMAN_OP_CONJOINT_DST = 0x22, 361 PIXMAN_OP_CONJOINT_OVER = 0x23, 362 PIXMAN_OP_CONJOINT_OVER_REVERSE = 0x24, 363 PIXMAN_OP_CONJOINT_IN = 0x25, 364 PIXMAN_OP_CONJOINT_IN_REVERSE = 0x26, 365 PIXMAN_OP_CONJOINT_OUT = 0x27, 366 PIXMAN_OP_CONJOINT_OUT_REVERSE = 0x28, 367 PIXMAN_OP_CONJOINT_ATOP = 0x29, 368 PIXMAN_OP_CONJOINT_ATOP_REVERSE = 0x2a, 369 PIXMAN_OP_CONJOINT_XOR = 0x2b, 370 371 PIXMAN_OP_NONE, 372 PIXMAN_OP_LAST = PIXMAN_OP_NONE 373} pixman_op_t; 374 375/* 376 * Regions 377 */ 378typedef struct pixman_region16_data pixman_region16_data_t; 379typedef struct pixman_box16 pixman_box16_t; 380typedef struct pixman_rectangle16 pixman_rectangle16_t; 381typedef struct pixman_region16 pixman_region16_t; 382 383struct pixman_region16_data { 384 long size; 385 long numRects; 386/* pixman_box16_t rects[size]; in memory but not explicitly declared */ 387}; 388 389struct pixman_rectangle16 390{ 391 int16_t x, y; 392 uint16_t width, height; 393}; 394 395struct pixman_box16 396{ 397 int16_t x1, y1, x2, y2; 398}; 399 400struct pixman_region16 401{ 402 pixman_box16_t extents; 403 pixman_region16_data_t *data; 404}; 405 406typedef enum 407{ 408 PIXMAN_REGION_OUT, 409 PIXMAN_REGION_IN, 410 PIXMAN_REGION_PART 411} pixman_region_overlap_t; 412 413/* This function exists only to make it possible to preserve the X ABI - it should 414 * go away at first opportunity. 415 */ 416void pixman_region_set_static_pointers (pixman_box16_t *empty_box, 417 pixman_region16_data_t *empty_data, 418 pixman_region16_data_t *broken_data); 419 420 421/* creation/destruction */ 422void pixman_region_init (pixman_region16_t *region); 423void pixman_region_init_rect (pixman_region16_t *region, 424 int x, 425 int y, 426 unsigned int width, 427 unsigned int height); 428pixman_bool_t pixman_region_init_rects (pixman_region16_t *region, 429 pixman_box16_t *boxes, 430 int count); 431void pixman_region_init_with_extents (pixman_region16_t *region, 432 pixman_box16_t *extents); 433void pixman_region_fini (pixman_region16_t *region); 434 435 436/* manipulation */ 437void pixman_region_translate (pixman_region16_t *region, 438 int x, 439 int y); 440pixman_bool_t pixman_region_copy (pixman_region16_t *dest, 441 pixman_region16_t *source); 442pixman_bool_t pixman_region_intersect (pixman_region16_t *newReg, 443 pixman_region16_t *reg1, 444 pixman_region16_t *reg2); 445pixman_bool_t pixman_region_union (pixman_region16_t *newReg, 446 pixman_region16_t *reg1, 447 pixman_region16_t *reg2); 448pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest, 449 pixman_region16_t *source, 450 int x, 451 int y, 452 unsigned int width, 453 unsigned int height); 454pixman_bool_t pixman_region_subtract (pixman_region16_t *regD, 455 pixman_region16_t *regM, 456 pixman_region16_t *regS); 457pixman_bool_t pixman_region_inverse (pixman_region16_t *newReg, 458 pixman_region16_t *reg1, 459 pixman_box16_t *invRect); 460pixman_bool_t pixman_region_contains_point (pixman_region16_t *region, 461 int x, 462 int y, 463 pixman_box16_t *box); 464pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *pixman_region16_t, 465 pixman_box16_t *prect); 466pixman_bool_t pixman_region_not_empty (pixman_region16_t *region); 467pixman_box16_t * pixman_region_extents (pixman_region16_t *region); 468int pixman_region_n_rects (pixman_region16_t *region); 469pixman_box16_t * pixman_region_rectangles (pixman_region16_t *region, 470 int *n_rects); 471pixman_bool_t pixman_region_equal (pixman_region16_t *region1, 472 pixman_region16_t *region2); 473pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region); 474void pixman_region_reset (pixman_region16_t *region, 475 pixman_box16_t *box); 476 477/* 478 * 32 bit regions 479 */ 480typedef struct pixman_region32_data pixman_region32_data_t; 481typedef struct pixman_box32 pixman_box32_t; 482typedef struct pixman_rectangle32 pixman_rectangle32_t; 483typedef struct pixman_region32 pixman_region32_t; 484 485struct pixman_region32_data { 486 long size; 487 long numRects; 488/* pixman_box32_t rects[size]; in memory but not explicitly declared */ 489}; 490 491struct pixman_rectangle32 492{ 493 int32_t x, y; 494 uint32_t width, height; 495}; 496 497struct pixman_box32 498{ 499 int32_t x1, y1, x2, y2; 500}; 501 502struct pixman_region32 503{ 504 pixman_box32_t extents; 505 pixman_region32_data_t *data; 506}; 507 508/* creation/destruction */ 509void pixman_region32_init (pixman_region32_t *region); 510void pixman_region32_init_rect (pixman_region32_t *region, 511 int x, 512 int y, 513 unsigned int width, 514 unsigned int height); 515pixman_bool_t pixman_region32_init_rects (pixman_region32_t *region, 516 pixman_box32_t *boxes, 517 int count); 518void pixman_region32_init_with_extents (pixman_region32_t *region, 519 pixman_box32_t *extents); 520void pixman_region32_fini (pixman_region32_t *region); 521 522 523/* manipulation */ 524void pixman_region32_translate (pixman_region32_t *region, 525 int x, 526 int y); 527pixman_bool_t pixman_region32_copy (pixman_region32_t *dest, 528 pixman_region32_t *source); 529pixman_bool_t pixman_region32_intersect (pixman_region32_t *newReg, 530 pixman_region32_t *reg1, 531 pixman_region32_t *reg2); 532pixman_bool_t pixman_region32_union (pixman_region32_t *newReg, 533 pixman_region32_t *reg1, 534 pixman_region32_t *reg2); 535pixman_bool_t pixman_region32_union_rect (pixman_region32_t *dest, 536 pixman_region32_t *source, 537 int x, 538 int y, 539 unsigned int width, 540 unsigned int height); 541pixman_bool_t pixman_region32_subtract (pixman_region32_t *regD, 542 pixman_region32_t *regM, 543 pixman_region32_t *regS); 544pixman_bool_t pixman_region32_inverse (pixman_region32_t *newReg, 545 pixman_region32_t *reg1, 546 pixman_box32_t *invRect); 547pixman_bool_t pixman_region32_contains_point (pixman_region32_t *region, 548 int x, 549 int y, 550 pixman_box32_t *box); 551pixman_region_overlap_t pixman_region32_contains_rectangle (pixman_region32_t *region, 552 pixman_box32_t *prect); 553pixman_bool_t pixman_region32_not_empty (pixman_region32_t *region); 554pixman_box32_t * pixman_region32_extents (pixman_region32_t *region); 555int pixman_region32_n_rects (pixman_region32_t *region); 556pixman_box32_t * pixman_region32_rectangles (pixman_region32_t *region, 557 int *n_rects); 558pixman_bool_t pixman_region32_equal (pixman_region32_t *region1, 559 pixman_region32_t *region2); 560pixman_bool_t pixman_region32_selfcheck (pixman_region32_t *region); 561void pixman_region32_reset (pixman_region32_t *region, 562 pixman_box32_t *box); 563 564 565/* Copy / Fill / Misc */ 566pixman_bool_t pixman_blt (uint32_t *src_bits, 567 uint32_t *dst_bits, 568 int src_stride, 569 int dst_stride, 570 int src_bpp, 571 int dst_bpp, 572 int src_x, 573 int src_y, 574 int dst_x, 575 int dst_y, 576 int width, 577 int height); 578pixman_bool_t pixman_fill (uint32_t *bits, 579 int stride, 580 int bpp, 581 int x, 582 int y, 583 int width, 584 int height, 585 uint32_t _xor); 586 587int pixman_version (void); 588const char* pixman_version_string (void); 589 590/* 591 * Images 592 */ 593typedef union pixman_image pixman_image_t; 594typedef struct pixman_indexed pixman_indexed_t; 595typedef struct pixman_gradient_stop pixman_gradient_stop_t; 596 597typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size); 598typedef void (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size); 599 600struct pixman_gradient_stop { 601 pixman_fixed_t x; 602 pixman_color_t color; 603}; 604 605#define PIXMAN_MAX_INDEXED 256 /* XXX depth must be <= 8 */ 606 607#if PIXMAN_MAX_INDEXED <= 256 608typedef uint8_t pixman_index_type; 609#endif 610 611struct pixman_indexed 612{ 613 pixman_bool_t color; 614 uint32_t rgba[PIXMAN_MAX_INDEXED]; 615 pixman_index_type ent[32768]; 616}; 617 618/* 619 * While the protocol is generous in format support, the 620 * sample implementation allows only packed RGB and GBR 621 * representations for data to simplify software rendering, 622 */ 623#define PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \ 624 ((type) << 16) | \ 625 ((a) << 12) | \ 626 ((r) << 8) | \ 627 ((g) << 4) | \ 628 ((b))) 629 630#define PIXMAN_FORMAT_BPP(f) (((f) >> 24) ) 631#define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0xff) 632#define PIXMAN_FORMAT_A(f) (((f) >> 12) & 0x0f) 633#define PIXMAN_FORMAT_R(f) (((f) >> 8) & 0x0f) 634#define PIXMAN_FORMAT_G(f) (((f) >> 4) & 0x0f) 635#define PIXMAN_FORMAT_B(f) (((f) ) & 0x0f) 636#define PIXMAN_FORMAT_RGB(f) (((f) ) & 0xfff) 637#define PIXMAN_FORMAT_VIS(f) (((f) ) & 0xffff) 638#define PIXMAN_FORMAT_DEPTH(f) (PIXMAN_FORMAT_A(f) + \ 639 PIXMAN_FORMAT_R(f) + \ 640 PIXMAN_FORMAT_G(f) + \ 641 PIXMAN_FORMAT_B(f)) 642 643#define PIXMAN_TYPE_OTHER 0 644#define PIXMAN_TYPE_A 1 645#define PIXMAN_TYPE_ARGB 2 646#define PIXMAN_TYPE_ABGR 3 647#define PIXMAN_TYPE_COLOR 4 648#define PIXMAN_TYPE_GRAY 5 649#define PIXMAN_TYPE_YUY2 6 650#define PIXMAN_TYPE_YV12 7 651#define PIXMAN_TYPE_BGRA 8 652 653#define PIXMAN_FORMAT_COLOR(f) \ 654 (PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ARGB || \ 655 PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ABGR || \ 656 PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_BGRA) 657 658/* 32bpp formats */ 659typedef enum { 660 PIXMAN_a8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8), 661 PIXMAN_x8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8), 662 PIXMAN_a8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8), 663 PIXMAN_x8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8), 664 PIXMAN_b8g8r8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,8,8,8,8), 665 PIXMAN_b8g8r8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,0,8,8,8), 666 PIXMAN_x2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,10,10,10), 667 PIXMAN_a2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,2,10,10,10), 668 669/* 24bpp formats */ 670 PIXMAN_r8g8b8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8), 671 PIXMAN_b8g8r8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8), 672 673/* 16bpp formats */ 674 PIXMAN_r5g6b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5), 675 PIXMAN_b5g6r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5), 676 677 PIXMAN_a1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5), 678 PIXMAN_x1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5), 679 PIXMAN_a1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5), 680 PIXMAN_x1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5), 681 PIXMAN_a4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4), 682 PIXMAN_x4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4), 683 PIXMAN_a4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4), 684 PIXMAN_x4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4), 685 686/* 8bpp formats */ 687 PIXMAN_a8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0), 688 PIXMAN_r3g3b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2), 689 PIXMAN_b2g3r3 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2), 690 PIXMAN_a2r2g2b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2), 691 PIXMAN_a2b2g2r2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2), 692 693 PIXMAN_c8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), 694 PIXMAN_g8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), 695 696 PIXMAN_x4a4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0), 697 698 PIXMAN_x4c4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), 699 PIXMAN_x4g4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), 700 701/* 4bpp formats */ 702 PIXMAN_a4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0), 703 PIXMAN_r1g2b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1), 704 PIXMAN_b1g2r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1), 705 PIXMAN_a1r1g1b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1), 706 PIXMAN_a1b1g1r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1), 707 708 PIXMAN_c4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0), 709 PIXMAN_g4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0), 710 711/* 1bpp formats */ 712 PIXMAN_a1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0), 713 714 PIXMAN_g1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0), 715 716/* YUV formats */ 717 PIXMAN_yuy2 = PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0), 718 PIXMAN_yv12 = PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0) 719} pixman_format_code_t; 720 721/* Querying supported format values. */ 722pixman_bool_t pixman_format_supported_destination (pixman_format_code_t format); 723pixman_bool_t pixman_format_supported_source (pixman_format_code_t format); 724 725/* Constructors */ 726pixman_image_t *pixman_image_create_solid_fill (pixman_color_t *color); 727pixman_image_t *pixman_image_create_linear_gradient (pixman_point_fixed_t *p1, 728 pixman_point_fixed_t *p2, 729 const pixman_gradient_stop_t *stops, 730 int n_stops); 731pixman_image_t *pixman_image_create_radial_gradient (pixman_point_fixed_t *inner, 732 pixman_point_fixed_t *outer, 733 pixman_fixed_t inner_radius, 734 pixman_fixed_t outer_radius, 735 const pixman_gradient_stop_t *stops, 736 int n_stops); 737pixman_image_t *pixman_image_create_conical_gradient (pixman_point_fixed_t *center, 738 pixman_fixed_t angle, 739 const pixman_gradient_stop_t *stops, 740 int n_stops); 741pixman_image_t *pixman_image_create_bits (pixman_format_code_t format, 742 int width, 743 int height, 744 uint32_t *bits, 745 int rowstride_bytes); 746 747/* Destructor */ 748pixman_image_t *pixman_image_ref (pixman_image_t *image); 749pixman_bool_t pixman_image_unref (pixman_image_t *image); 750 751 752/* Set properties */ 753pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image, 754 pixman_region16_t *region); 755pixman_bool_t pixman_image_set_clip_region32 (pixman_image_t *image, 756 pixman_region32_t *region); 757void pixman_image_set_has_client_clip (pixman_image_t *image, 758 pixman_bool_t clien_clip); 759pixman_bool_t pixman_image_set_transform (pixman_image_t *image, 760 const pixman_transform_t *transform); 761void pixman_image_set_repeat (pixman_image_t *image, 762 pixman_repeat_t repeat); 763pixman_bool_t pixman_image_set_filter (pixman_image_t *image, 764 pixman_filter_t filter, 765 const pixman_fixed_t *filter_params, 766 int n_filter_params); 767void pixman_image_set_source_clipping (pixman_image_t *image, 768 pixman_bool_t source_clipping); 769void pixman_image_set_alpha_map (pixman_image_t *image, 770 pixman_image_t *alpha_map, 771 int16_t x, 772 int16_t y); 773void pixman_image_set_component_alpha (pixman_image_t *image, 774 pixman_bool_t component_alpha); 775void pixman_image_set_accessors (pixman_image_t *image, 776 pixman_read_memory_func_t read_func, 777 pixman_write_memory_func_t write_func); 778void pixman_image_set_indexed (pixman_image_t *image, 779 const pixman_indexed_t *indexed); 780uint32_t *pixman_image_get_data (pixman_image_t *image); 781int pixman_image_get_width (pixman_image_t *image); 782int pixman_image_get_height (pixman_image_t *image); 783int pixman_image_get_stride (pixman_image_t *image); /* in bytes */ 784int pixman_image_get_depth (pixman_image_t *image); 785pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op, 786 pixman_image_t *image, 787 pixman_color_t *color, 788 int n_rects, 789 const pixman_rectangle16_t *rects); 790 791/* Composite */ 792pixman_bool_t pixman_compute_composite_region (pixman_region16_t *pRegion, 793 pixman_image_t *pSrc, 794 pixman_image_t *pMask, 795 pixman_image_t *pDst, 796 int16_t xSrc, 797 int16_t ySrc, 798 int16_t xMask, 799 int16_t yMask, 800 int16_t xDst, 801 int16_t yDst, 802 uint16_t width, 803 uint16_t height); 804void pixman_image_composite (pixman_op_t op, 805 pixman_image_t *src, 806 pixman_image_t *mask, 807 pixman_image_t *dest, 808 int16_t src_x, 809 int16_t src_y, 810 int16_t mask_x, 811 int16_t mask_y, 812 int16_t dest_x, 813 int16_t dest_y, 814 uint16_t width, 815 uint16_t height); 816 817/* 818 * Trapezoids 819 */ 820typedef struct pixman_edge pixman_edge_t; 821typedef struct pixman_trapezoid pixman_trapezoid_t; 822typedef struct pixman_trap pixman_trap_t; 823typedef struct pixman_span_fix pixman_span_fix_t; 824 825/* 826 * An edge structure. This represents a single polygon edge 827 * and can be quickly stepped across small or large gaps in the 828 * sample grid 829 */ 830struct pixman_edge 831{ 832 pixman_fixed_t x; 833 pixman_fixed_t e; 834 pixman_fixed_t stepx; 835 pixman_fixed_t signdx; 836 pixman_fixed_t dy; 837 pixman_fixed_t dx; 838 839 pixman_fixed_t stepx_small; 840 pixman_fixed_t stepx_big; 841 pixman_fixed_t dx_small; 842 pixman_fixed_t dx_big; 843}; 844 845struct pixman_trapezoid 846{ 847 pixman_fixed_t top, bottom; 848 pixman_line_fixed_t left, right; 849}; 850 851 852/* whether 't' is a well defined not obviously empty trapezoid */ 853#define pixman_trapezoid_valid(t) \ 854 ((t)->left.p1.y != (t)->left.p2.y && \ 855 (t)->right.p1.y != (t)->right.p2.y && \ 856 (int) ((t)->bottom - (t)->top) > 0) 857 858struct pixman_span_fix 859{ 860 pixman_fixed_t l, r, y; 861}; 862 863struct pixman_trap 864{ 865 pixman_span_fix_t top, bot; 866}; 867 868pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y, 869 int bpp); 870pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y, 871 int bpp); 872void pixman_edge_step (pixman_edge_t *e, 873 int n); 874void pixman_edge_init (pixman_edge_t *e, 875 int bpp, 876 pixman_fixed_t y_start, 877 pixman_fixed_t x_top, 878 pixman_fixed_t y_top, 879 pixman_fixed_t x_bot, 880 pixman_fixed_t y_bot); 881void pixman_line_fixed_edge_init (pixman_edge_t *e, 882 int bpp, 883 pixman_fixed_t y, 884 const pixman_line_fixed_t *line, 885 int x_off, 886 int y_off); 887void pixman_rasterize_edges (pixman_image_t *image, 888 pixman_edge_t *l, 889 pixman_edge_t *r, 890 pixman_fixed_t t, 891 pixman_fixed_t b); 892void pixman_add_traps (pixman_image_t *image, 893 int16_t x_off, 894 int16_t y_off, 895 int ntrap, 896 pixman_trap_t *traps); 897void pixman_add_trapezoids (pixman_image_t *image, 898 int16_t x_off, 899 int y_off, 900 int ntraps, 901 const pixman_trapezoid_t *traps); 902void pixman_rasterize_trapezoid (pixman_image_t *image, 903 const pixman_trapezoid_t *trap, 904 int x_off, 905 int y_off); 906 907 908#endif /* PIXMAN_H__ */ 909