1 /***********************************************************
3 Copyright 1987, 1998 The Open Group
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
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
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.
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.
25 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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.
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
45 ******************************************************************/
47 * Copyright © 1998, 2004 Keith Packard
48 * Copyright 2007 Red Hat, Inc.
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.
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.
72 #include <pixman-version.h>
77 #if defined (__SVR4) && defined (__sun)
78 # include <sys/int_types.h>
80 #elif defined (__OpenBSD__) || defined (__sgi)
81 # include <inttypes.h>
82 #elif defined (_MSC_VER)
83 typedef __int8 int8_t;
84 typedef unsigned __int8 uint8_t;
85 typedef __int16 int16_t;
86 typedef unsigned __int16 uint16_t;
87 typedef __int32 int32_t;
88 typedef unsigned __int32 uint32_t;
89 typedef __int64 int64_t;
90 typedef unsigned __int64 uint64_t;
98 typedef int pixman_bool_t;
103 typedef int64_t pixman_fixed_32_32_t;
104 typedef pixman_fixed_32_32_t pixman_fixed_48_16_t;
105 typedef uint32_t pixman_fixed_1_31_t;
106 typedef uint32_t pixman_fixed_1_16_t;
107 typedef int32_t pixman_fixed_16_16_t;
108 typedef pixman_fixed_16_16_t pixman_fixed_t;
110 #define pixman_fixed_e ((pixman_fixed_t) 1)
111 #define pixman_fixed_1 (pixman_int_to_fixed(1))
112 #define pixman_fixed_1_minus_e (pixman_fixed_1 - pixman_fixed_e)
113 #define pixman_fixed_to_int(f) ((int) ((f) >> 16))
114 #define pixman_int_to_fixed(i) ((pixman_fixed_t) ((i) << 16))
115 #define pixman_fixed_to_double(f) (double) ((f) / (double) pixman_fixed_1)
116 #define pixman_double_to_fixed(d) ((pixman_fixed_t) ((d) * 65536.0))
117 #define pixman_fixed_frac(f) ((f) & pixman_fixed_1_minus_e)
118 #define pixman_fixed_floor(f) ((f) & ~pixman_fixed_1_minus_e)
119 #define pixman_fixed_ceil(f) pixman_fixed_floor ((f) + pixman_fixed_1_minus_e)
120 #define pixman_fixed_fraction(f) ((f) & pixman_fixed_1_minus_e)
121 #define pixman_fixed_mod_2(f) ((f) & (pixman_fixed1 | pixman_fixed_1_minus_e))
122 #define pixman_max_fixed_48_16 ((pixman_fixed_48_16_t) 0x7fffffff)
123 #define pixman_min_fixed_48_16 (-((pixman_fixed_48_16_t) 1 << 31))
128 typedef struct pixman_color pixman_color_t;
129 typedef struct pixman_point_fixed pixman_point_fixed_t;
130 typedef struct pixman_line_fixed pixman_line_fixed_t;
131 typedef struct pixman_vector pixman_vector_t;
132 typedef struct pixman_transform pixman_transform_t;
142 struct pixman_point_fixed
148 struct pixman_line_fixed
150 pixman_point_fixed_t p1, p2;
155 pixman_fixed_t vector[3];
158 struct pixman_transform
160 pixman_fixed_t matrix[3][3];
163 /* Don't blame me, blame XRender */
167 PIXMAN_REPEAT_NORMAL,
169 PIXMAN_REPEAT_REFLECT
177 PIXMAN_FILTER_NEAREST,
178 PIXMAN_FILTER_BILINEAR,
179 PIXMAN_FILTER_CONVOLUTION
184 PIXMAN_OP_CLEAR = 0x00,
185 PIXMAN_OP_SRC = 0x01,
186 PIXMAN_OP_DST = 0x02,
187 PIXMAN_OP_OVER = 0x03,
188 PIXMAN_OP_OVER_REVERSE = 0x04,
190 PIXMAN_OP_IN_REVERSE = 0x06,
191 PIXMAN_OP_OUT = 0x07,
192 PIXMAN_OP_OUT_REVERSE = 0x08,
193 PIXMAN_OP_ATOP = 0x09,
194 PIXMAN_OP_ATOP_REVERSE = 0x0a,
195 PIXMAN_OP_XOR = 0x0b,
196 PIXMAN_OP_ADD = 0x0c,
197 PIXMAN_OP_SATURATE = 0x0d,
199 PIXMAN_OP_DISJOINT_CLEAR = 0x10,
200 PIXMAN_OP_DISJOINT_SRC = 0x11,
201 PIXMAN_OP_DISJOINT_DST = 0x12,
202 PIXMAN_OP_DISJOINT_OVER = 0x13,
203 PIXMAN_OP_DISJOINT_OVER_REVERSE = 0x14,
204 PIXMAN_OP_DISJOINT_IN = 0x15,
205 PIXMAN_OP_DISJOINT_IN_REVERSE = 0x16,
206 PIXMAN_OP_DISJOINT_OUT = 0x17,
207 PIXMAN_OP_DISJOINT_OUT_REVERSE = 0x18,
208 PIXMAN_OP_DISJOINT_ATOP = 0x19,
209 PIXMAN_OP_DISJOINT_ATOP_REVERSE = 0x1a,
210 PIXMAN_OP_DISJOINT_XOR = 0x1b,
212 PIXMAN_OP_CONJOINT_CLEAR = 0x20,
213 PIXMAN_OP_CONJOINT_SRC = 0x21,
214 PIXMAN_OP_CONJOINT_DST = 0x22,
215 PIXMAN_OP_CONJOINT_OVER = 0x23,
216 PIXMAN_OP_CONJOINT_OVER_REVERSE = 0x24,
217 PIXMAN_OP_CONJOINT_IN = 0x25,
218 PIXMAN_OP_CONJOINT_IN_REVERSE = 0x26,
219 PIXMAN_OP_CONJOINT_OUT = 0x27,
220 PIXMAN_OP_CONJOINT_OUT_REVERSE = 0x28,
221 PIXMAN_OP_CONJOINT_ATOP = 0x29,
222 PIXMAN_OP_CONJOINT_ATOP_REVERSE = 0x2a,
223 PIXMAN_OP_CONJOINT_XOR = 0x2b,
231 typedef struct pixman_region16_data pixman_region16_data_t;
232 typedef struct pixman_box16 pixman_box16_t;
233 typedef struct pixman_rectangle16 pixman_rectangle16_t;
234 typedef struct pixman_region16 pixman_region16_t;
236 struct pixman_region16_data {
239 /* pixman_box16_t rects[size]; in memory but not explicitly declared */
242 struct pixman_rectangle16
245 uint16_t width, height;
250 int16_t x1, y1, x2, y2;
253 struct pixman_region16
255 pixman_box16_t extents;
256 pixman_region16_data_t *data;
264 } pixman_region_overlap_t;
266 /* This function exists only to make it possible to preserve the X ABI - it should
267 * go away at first opportunity.
269 void pixman_region_set_static_pointers (pixman_box16_t *empty_box,
270 pixman_region16_data_t *empty_data,
271 pixman_region16_data_t *broken_data);
274 /* creation/destruction */
275 void pixman_region_init (pixman_region16_t *region);
276 void pixman_region_init_rect (pixman_region16_t *region,
280 unsigned int height);
281 pixman_bool_t pixman_region_init_rects (pixman_region16_t *region,
282 pixman_box16_t *boxes,
284 void pixman_region_init_with_extents (pixman_region16_t *region,
285 pixman_box16_t *extents);
286 void pixman_region_fini (pixman_region16_t *region);
290 void pixman_region_translate (pixman_region16_t *region,
293 pixman_bool_t pixman_region_copy (pixman_region16_t *dest,
294 pixman_region16_t *source);
295 pixman_bool_t pixman_region_intersect (pixman_region16_t *newReg,
296 pixman_region16_t *reg1,
297 pixman_region16_t *reg2);
298 pixman_bool_t pixman_region_union (pixman_region16_t *newReg,
299 pixman_region16_t *reg1,
300 pixman_region16_t *reg2);
301 pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest,
302 pixman_region16_t *source,
306 unsigned int height);
307 pixman_bool_t pixman_region_subtract (pixman_region16_t *regD,
308 pixman_region16_t *regM,
309 pixman_region16_t *regS);
310 pixman_bool_t pixman_region_inverse (pixman_region16_t *newReg,
311 pixman_region16_t *reg1,
312 pixman_box16_t *invRect);
313 pixman_bool_t pixman_region_contains_point (pixman_region16_t *region,
316 pixman_box16_t *box);
317 pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *pixman_region16_t,
318 pixman_box16_t *prect);
319 pixman_bool_t pixman_region_not_empty (pixman_region16_t *region);
320 pixman_box16_t * pixman_region_extents (pixman_region16_t *region);
321 int pixman_region_n_rects (pixman_region16_t *region);
322 pixman_box16_t * pixman_region_rectangles (pixman_region16_t *region,
324 pixman_bool_t pixman_region_equal (pixman_region16_t *region1,
325 pixman_region16_t *region2);
326 pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region);
327 void pixman_region_reset (pixman_region16_t *region,
328 pixman_box16_t *box);
333 typedef struct pixman_region32_data pixman_region32_data_t;
334 typedef struct pixman_box32 pixman_box32_t;
335 typedef struct pixman_rectangle32 pixman_rectangle32_t;
336 typedef struct pixman_region32 pixman_region32_t;
338 struct pixman_region32_data {
341 /* pixman_box32_t rects[size]; in memory but not explicitly declared */
344 struct pixman_rectangle32
347 uint32_t width, height;
352 int32_t x1, y1, x2, y2;
355 struct pixman_region32
357 pixman_box32_t extents;
358 pixman_region32_data_t *data;
361 /* creation/destruction */
362 void pixman_region32_init (pixman_region32_t *region);
363 void pixman_region32_init_rect (pixman_region32_t *region,
367 unsigned int height);
368 pixman_bool_t pixman_region32_init_rects (pixman_region32_t *region,
369 pixman_box32_t *boxes,
371 void pixman_region32_init_with_extents (pixman_region32_t *region,
372 pixman_box32_t *extents);
373 void pixman_region32_fini (pixman_region32_t *region);
377 void pixman_region32_translate (pixman_region32_t *region,
380 pixman_bool_t pixman_region32_copy (pixman_region32_t *dest,
381 pixman_region32_t *source);
382 pixman_bool_t pixman_region32_intersect (pixman_region32_t *newReg,
383 pixman_region32_t *reg1,
384 pixman_region32_t *reg2);
385 pixman_bool_t pixman_region32_union (pixman_region32_t *newReg,
386 pixman_region32_t *reg1,
387 pixman_region32_t *reg2);
388 pixman_bool_t pixman_region32_union_rect (pixman_region32_t *dest,
389 pixman_region32_t *source,
393 unsigned int height);
394 pixman_bool_t pixman_region32_subtract (pixman_region32_t *regD,
395 pixman_region32_t *regM,
396 pixman_region32_t *regS);
397 pixman_bool_t pixman_region32_inverse (pixman_region32_t *newReg,
398 pixman_region32_t *reg1,
399 pixman_box32_t *invRect);
400 pixman_bool_t pixman_region32_contains_point (pixman_region32_t *region,
403 pixman_box32_t *box);
404 pixman_region_overlap_t pixman_region32_contains_rectangle (pixman_region32_t *region,
405 pixman_box32_t *prect);
406 pixman_bool_t pixman_region32_not_empty (pixman_region32_t *region);
407 pixman_box32_t * pixman_region32_extents (pixman_region32_t *region);
408 int pixman_region32_n_rects (pixman_region32_t *region);
409 pixman_box32_t * pixman_region32_rectangles (pixman_region32_t *region,
411 pixman_bool_t pixman_region32_equal (pixman_region32_t *region1,
412 pixman_region32_t *region2);
413 pixman_bool_t pixman_region32_selfcheck (pixman_region32_t *region);
414 void pixman_region32_reset (pixman_region32_t *region,
415 pixman_box32_t *box);
418 /* Copy / Fill / Misc */
419 pixman_bool_t pixman_blt (uint32_t *src_bits,
431 pixman_bool_t pixman_fill (uint32_t *bits,
439 pixman_bool_t pixman_transform_point_3d (pixman_transform_t *transform,
440 pixman_vector_t *vector);
445 typedef union pixman_image pixman_image_t;
446 typedef struct pixman_indexed pixman_indexed_t;
447 typedef struct pixman_gradient_stop pixman_gradient_stop_t;
449 typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size);
450 typedef void (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size);
452 struct pixman_gradient_stop {
454 pixman_color_t color;
457 #define PIXMAN_MAX_INDEXED 256 /* XXX depth must be <= 8 */
459 #if PIXMAN_MAX_INDEXED <= 256
460 typedef uint8_t pixman_index_type;
463 struct pixman_indexed
466 uint32_t rgba[PIXMAN_MAX_INDEXED];
467 pixman_index_type ent[32768];
471 * While the protocol is generous in format support, the
472 * sample implementation allows only packed RGB and GBR
473 * representations for data to simplify software rendering,
475 #define PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \
482 #define PIXMAN_FORMAT_BPP(f) (((f) >> 24) )
483 #define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0xff)
484 #define PIXMAN_FORMAT_A(f) (((f) >> 12) & 0x0f)
485 #define PIXMAN_FORMAT_R(f) (((f) >> 8) & 0x0f)
486 #define PIXMAN_FORMAT_G(f) (((f) >> 4) & 0x0f)
487 #define PIXMAN_FORMAT_B(f) (((f) ) & 0x0f)
488 #define PIXMAN_FORMAT_RGB(f) (((f) ) & 0xfff)
489 #define PIXMAN_FORMAT_VIS(f) (((f) ) & 0xffff)
490 #define PIXMAN_FORMAT_DEPTH(f) (PIXMAN_FORMAT_A(f) + \
491 PIXMAN_FORMAT_R(f) + \
492 PIXMAN_FORMAT_G(f) + \
495 #define PIXMAN_TYPE_OTHER 0
496 #define PIXMAN_TYPE_A 1
497 #define PIXMAN_TYPE_ARGB 2
498 #define PIXMAN_TYPE_ABGR 3
499 #define PIXMAN_TYPE_COLOR 4
500 #define PIXMAN_TYPE_GRAY 5
501 #define PIXMAN_TYPE_YUY2 6
502 #define PIXMAN_TYPE_YV12 7
504 #define PIXMAN_FORMAT_COLOR(f) (PIXMAN_FORMAT_TYPE(f) & 2)
508 PIXMAN_a8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8),
509 PIXMAN_x8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8),
510 PIXMAN_a8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8),
511 PIXMAN_x8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8),
514 PIXMAN_r8g8b8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8),
515 PIXMAN_b8g8r8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8),
518 PIXMAN_r5g6b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5),
519 PIXMAN_b5g6r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5),
521 PIXMAN_a1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5),
522 PIXMAN_x1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5),
523 PIXMAN_a1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5),
524 PIXMAN_x1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5),
525 PIXMAN_a4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4),
526 PIXMAN_x4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4),
527 PIXMAN_a4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4),
528 PIXMAN_x4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4),
531 PIXMAN_a8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0),
532 PIXMAN_r3g3b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2),
533 PIXMAN_b2g3r3 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2),
534 PIXMAN_a2r2g2b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2),
535 PIXMAN_a2b2g2r2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2),
537 PIXMAN_c8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0),
538 PIXMAN_g8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0),
540 PIXMAN_x4a4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0),
542 PIXMAN_x4c4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0),
543 PIXMAN_x4g4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0),
546 PIXMAN_a4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0),
547 PIXMAN_r1g2b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1),
548 PIXMAN_b1g2r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1),
549 PIXMAN_a1r1g1b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1),
550 PIXMAN_a1b1g1r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1),
552 PIXMAN_c4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0),
553 PIXMAN_g4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0),
556 PIXMAN_a1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0),
558 PIXMAN_g1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0),
561 PIXMAN_yuy2 = PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0),
562 PIXMAN_yv12 = PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0)
563 } pixman_format_code_t;
565 /* Querying supported format values. */
566 pixman_bool_t pixman_format_supported_destination (pixman_format_code_t format);
567 pixman_bool_t pixman_format_supported_source (pixman_format_code_t format);
570 pixman_image_t *pixman_image_create_solid_fill (pixman_color_t *color);
571 pixman_image_t *pixman_image_create_linear_gradient (pixman_point_fixed_t *p1,
572 pixman_point_fixed_t *p2,
573 const pixman_gradient_stop_t *stops,
575 pixman_image_t *pixman_image_create_radial_gradient (pixman_point_fixed_t *inner,
576 pixman_point_fixed_t *outer,
577 pixman_fixed_t inner_radius,
578 pixman_fixed_t outer_radius,
579 const pixman_gradient_stop_t *stops,
581 pixman_image_t *pixman_image_create_conical_gradient (pixman_point_fixed_t *center,
582 pixman_fixed_t angle,
583 const pixman_gradient_stop_t *stops,
585 pixman_image_t *pixman_image_create_bits (pixman_format_code_t format,
589 int rowstride_bytes);
592 pixman_image_t *pixman_image_ref (pixman_image_t *image);
593 pixman_bool_t pixman_image_unref (pixman_image_t *image);
597 pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image,
598 pixman_region16_t *region);
599 void pixman_image_set_has_client_clip (pixman_image_t *image,
600 pixman_bool_t clien_clip);
601 pixman_bool_t pixman_image_set_transform (pixman_image_t *image,
602 const pixman_transform_t *transform);
603 void pixman_image_set_repeat (pixman_image_t *image,
604 pixman_repeat_t repeat);
605 pixman_bool_t pixman_image_set_filter (pixman_image_t *image,
606 pixman_filter_t filter,
607 const pixman_fixed_t *filter_params,
608 int n_filter_params);
609 void pixman_image_set_source_clipping (pixman_image_t *image,
610 pixman_bool_t source_clipping);
611 void pixman_image_set_alpha_map (pixman_image_t *image,
612 pixman_image_t *alpha_map,
615 void pixman_image_set_component_alpha (pixman_image_t *image,
616 pixman_bool_t component_alpha);
617 void pixman_image_set_accessors (pixman_image_t *image,
618 pixman_read_memory_func_t read_func,
619 pixman_write_memory_func_t write_func);
620 void pixman_image_set_indexed (pixman_image_t *image,
621 const pixman_indexed_t *indexed);
622 uint32_t *pixman_image_get_data (pixman_image_t *image);
623 int pixman_image_get_width (pixman_image_t *image);
624 int pixman_image_get_height (pixman_image_t *image);
625 int pixman_image_get_stride (pixman_image_t *image);
626 int pixman_image_get_depth (pixman_image_t *image);
627 pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op,
628 pixman_image_t *image,
629 pixman_color_t *color,
631 const pixman_rectangle16_t *rects);
634 pixman_bool_t pixman_compute_composite_region (pixman_region16_t *pRegion,
635 pixman_image_t *pSrc,
636 pixman_image_t *pMask,
637 pixman_image_t *pDst,
646 void pixman_image_composite (pixman_op_t op,
648 pixman_image_t *mask,
649 pixman_image_t *dest,
662 typedef struct pixman_edge pixman_edge_t;
663 typedef struct pixman_trapezoid pixman_trapezoid_t;
664 typedef struct pixman_trap pixman_trap_t;
665 typedef struct pixman_span_fix pixman_span_fix_t;
668 * An edge structure. This represents a single polygon edge
669 * and can be quickly stepped across small or large gaps in the
676 pixman_fixed_t stepx;
677 pixman_fixed_t signdx;
681 pixman_fixed_t stepx_small;
682 pixman_fixed_t stepx_big;
683 pixman_fixed_t dx_small;
684 pixman_fixed_t dx_big;
687 struct pixman_trapezoid
689 pixman_fixed_t top, bottom;
690 pixman_line_fixed_t left, right;
694 /* whether 't' is a well defined not obviously empty trapezoid */
695 #define pixman_trapezoid_valid(t) \
696 ((t)->left.p1.y != (t)->left.p2.y && \
697 (t)->right.p1.y != (t)->right.p2.y && \
698 (int) ((t)->bottom - (t)->top) > 0)
700 struct pixman_span_fix
702 pixman_fixed_t l, r, y;
707 pixman_span_fix_t top, bot;
710 pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y,
712 pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y,
714 void pixman_edge_step (pixman_edge_t *e,
716 void pixman_edge_init (pixman_edge_t *e,
718 pixman_fixed_t y_start,
719 pixman_fixed_t x_top,
720 pixman_fixed_t y_top,
721 pixman_fixed_t x_bot,
722 pixman_fixed_t y_bot);
723 void pixman_line_fixed_edge_init (pixman_edge_t *e,
726 const pixman_line_fixed_t *line,
729 void pixman_rasterize_edges (pixman_image_t *image,
734 void pixman_add_traps (pixman_image_t *image,
738 pixman_trap_t *traps);
739 void pixman_add_trapezoids (pixman_image_t *image,
743 const pixman_trapezoid_t *traps);
744 void pixman_rasterize_trapezoid (pixman_image_t *image,
745 const pixman_trapezoid_t *trap,
750 #endif /* PIXMAN_H__ */