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.
75 #if defined (__SVR4) && defined (__sun)
76 # include <sys/int_types.h>
78 #elif defined (__OpenBSD__)
79 # include <inttypes.h>
80 #elif defined (_MSC_VER)
81 typedef __int8 int8_t;
82 typedef unsigned __int8 uint8_t;
83 typedef __int16 int16_t;
84 typedef unsigned __int16 uint16_t;
85 typedef __int32 int32_t;
86 typedef unsigned __int32 uint32_t;
87 typedef __int64 int64_t;
88 typedef unsigned __int64 uint64_t;
96 typedef int pixman_bool_t;
101 typedef int64_t pixman_fixed_32_32_t;
102 typedef pixman_fixed_32_32_t pixman_fixed_48_16_t;
103 typedef uint32_t pixman_fixed_1_31_t;
104 typedef uint32_t pixman_fixed_1_16_t;
105 typedef int32_t pixman_fixed_16_16_t;
106 typedef pixman_fixed_16_16_t pixman_fixed_t;
108 #define pixman_fixed_e ((pixman_fixed_t) 1)
109 #define pixman_fixed_1 (pixman_int_to_fixed(1))
110 #define pixman_fixed_1_minus_e (pixman_fixed_1 - pixman_fixed_e)
111 #define pixman_fixed_to_int(f) ((int) ((f) >> 16))
112 #define pixman_int_to_fixed(i) ((pixman_fixed_t) ((i) << 16))
113 #define pixman_fixed_to_double(f) (double) ((f) / (double) pixman_fixed_1)
114 #define pixman_double_to_fixed(d) ((pixman_fixed_t) ((d) * 65536.0))
115 #define pixman_fixed_frac(f) ((f) & pixman_fixed_1_minus_e)
116 #define pixman_fixed_floor(f) ((f) & ~pixman_fixed_1_minus_e)
117 #define pixman_fixed_ceil(f) pixman_fixed_floor ((f) + pixman_fixed_1_minus_e)
118 #define pixman_fixed_fraction(f) ((f) & pixman_fixed_1_minus_e)
119 #define pixman_fixed_mod_2(f) ((f) & (pixman_fixed1 | pixman_fixed_1_minus_e))
120 #define pixman_max_fixed_48_16 ((pixman_fixed_48_16_t) 0x7fffffff)
121 #define pixman_min_fixed_48_16 (-((pixman_fixed_48_16_t) 1 << 31))
126 typedef struct pixman_color pixman_color_t;
127 typedef struct pixman_point_fixed pixman_point_fixed_t;
128 typedef struct pixman_line_fixed pixman_line_fixed_t;
129 typedef struct pixman_vector pixman_vector_t;
130 typedef struct pixman_transform pixman_transform_t;
140 struct pixman_point_fixed
146 struct pixman_line_fixed
148 pixman_point_fixed_t p1, p2;
153 pixman_fixed_t vector[3];
156 struct pixman_transform
158 pixman_fixed_t matrix[3][3];
161 pixman_bool_t pixman_transform_point_3d (pixman_transform_t *transform,
162 pixman_vector_t *vector);
164 /* Don't blame me, blame XRender */
168 PIXMAN_REPEAT_NORMAL,
170 PIXMAN_REPEAT_REFLECT
178 PIXMAN_FILTER_NEAREST,
179 PIXMAN_FILTER_BILINEAR,
180 PIXMAN_FILTER_CONVOLUTION
185 PIXMAN_OP_CLEAR = 0x00,
186 PIXMAN_OP_SRC = 0x01,
187 PIXMAN_OP_DST = 0x02,
188 PIXMAN_OP_OVER = 0x03,
189 PIXMAN_OP_OVER_REVERSE = 0x04,
191 PIXMAN_OP_IN_REVERSE = 0x06,
192 PIXMAN_OP_OUT = 0x07,
193 PIXMAN_OP_OUT_REVERSE = 0x08,
194 PIXMAN_OP_ATOP = 0x09,
195 PIXMAN_OP_ATOP_REVERSE = 0x0a,
196 PIXMAN_OP_XOR = 0x0b,
197 PIXMAN_OP_ADD = 0x0c,
198 PIXMAN_OP_SATURATE = 0x0d,
200 PIXMAN_OP_DISJOINT_CLEAR = 0x10,
201 PIXMAN_OP_DISJOINT_SRC = 0x11,
202 PIXMAN_OP_DISJOINT_DST = 0x12,
203 PIXMAN_OP_DISJOINT_OVER = 0x13,
204 PIXMAN_OP_DISJOINT_OVER_REVERSE = 0x14,
205 PIXMAN_OP_DISJOINT_IN = 0x15,
206 PIXMAN_OP_DISJOINT_IN_REVERSE = 0x16,
207 PIXMAN_OP_DISJOINT_OUT = 0x17,
208 PIXMAN_OP_DISJOINT_OUT_REVERSE = 0x18,
209 PIXMAN_OP_DISJOINT_ATOP = 0x19,
210 PIXMAN_OP_DISJOINT_ATOP_REVERSE = 0x1a,
211 PIXMAN_OP_DISJOINT_XOR = 0x1b,
213 PIXMAN_OP_CONJOINT_CLEAR = 0x20,
214 PIXMAN_OP_CONJOINT_SRC = 0x21,
215 PIXMAN_OP_CONJOINT_DST = 0x22,
216 PIXMAN_OP_CONJOINT_OVER = 0x23,
217 PIXMAN_OP_CONJOINT_OVER_REVERSE = 0x24,
218 PIXMAN_OP_CONJOINT_IN = 0x25,
219 PIXMAN_OP_CONJOINT_IN_REVERSE = 0x26,
220 PIXMAN_OP_CONJOINT_OUT = 0x27,
221 PIXMAN_OP_CONJOINT_OUT_REVERSE = 0x28,
222 PIXMAN_OP_CONJOINT_ATOP = 0x29,
223 PIXMAN_OP_CONJOINT_ATOP_REVERSE = 0x2a,
224 PIXMAN_OP_CONJOINT_XOR = 0x2b
230 typedef struct pixman_region16_data pixman_region16_data_t;
231 typedef struct pixman_box16 pixman_box16_t;
232 typedef struct pixman_rectangle16 pixman_rectangle16_t;
233 typedef struct pixman_region16 pixman_region16_t;
235 struct pixman_region16_data {
238 /* pixman_box16_t rects[size]; in memory but not explicitly declared */
241 struct pixman_rectangle16
244 uint16_t width, height;
249 int16_t x1, y1, x2, y2;
252 struct pixman_region16
254 pixman_box16_t extents;
255 pixman_region16_data_t *data;
263 } pixman_region_overlap_t;
265 /* This function exists only to make it possible to preserve the X ABI - it should
266 * go away at first opportunity.
268 void pixman_region_set_static_pointers (pixman_box16_t *empty_box,
269 pixman_region16_data_t *empty_data,
270 pixman_region16_data_t *broken_data);
272 /* creation/destruction */
273 void pixman_region_init (pixman_region16_t *region);
274 void pixman_region_init_rect (pixman_region16_t *region,
278 unsigned int height);
279 void pixman_region_init_with_extents (pixman_region16_t *region,
280 pixman_box16_t *extents);
281 void pixman_region_fini (pixman_region16_t *region);
284 void pixman_region_translate (pixman_region16_t *region,
287 pixman_bool_t pixman_region_copy (pixman_region16_t *dest,
288 pixman_region16_t *source);
289 pixman_bool_t pixman_region_intersect (pixman_region16_t *newReg,
290 pixman_region16_t *reg1,
291 pixman_region16_t *reg2);
292 pixman_bool_t pixman_region_union (pixman_region16_t *newReg,
293 pixman_region16_t *reg1,
294 pixman_region16_t *reg2);
295 pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest,
296 pixman_region16_t *source,
300 unsigned int height);
301 pixman_bool_t pixman_region_subtract (pixman_region16_t *regD,
302 pixman_region16_t *regM,
303 pixman_region16_t *regS);
304 pixman_bool_t pixman_region_inverse (pixman_region16_t *newReg,
305 pixman_region16_t *reg1,
306 pixman_box16_t *invRect);
307 pixman_bool_t pixman_region_contains_point (pixman_region16_t *region,
308 int x, int y, pixman_box16_t *box);
309 pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *pixman_region16_t,
310 pixman_box16_t *prect);
311 pixman_bool_t pixman_region_not_empty (pixman_region16_t *region);
312 pixman_box16_t * pixman_region_extents (pixman_region16_t *region);
313 int pixman_region_n_rects (pixman_region16_t *region);
314 pixman_box16_t * pixman_region_rectangles (pixman_region16_t *region,
316 pixman_bool_t pixman_region_equal (pixman_region16_t *region1,
317 pixman_region16_t *region2);
318 pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region);
319 void pixman_region_reset (pixman_region16_t *region, pixman_box16_t *box);
320 pixman_bool_t pixman_region_init_rects (pixman_region16_t *region,
321 pixman_box16_t *boxes, int count);
324 pixman_bool_t pixman_blt (uint32_t *src_bits,
330 int src_x, int src_y,
331 int dst_x, int dst_y,
332 int width, int height);
333 pixman_bool_t pixman_fill (uint32_t *bits,
344 typedef union pixman_image pixman_image_t;
345 typedef struct pixman_indexed pixman_indexed_t;
346 typedef struct pixman_gradient_stop pixman_gradient_stop_t;
348 typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size);
349 typedef void (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size);
351 struct pixman_gradient_stop {
353 pixman_color_t color;
356 #define PIXMAN_MAX_INDEXED 256 /* XXX depth must be <= 8 */
358 #if PIXMAN_MAX_INDEXED <= 256
359 typedef uint8_t pixman_index_type;
362 struct pixman_indexed
365 uint32_t rgba[PIXMAN_MAX_INDEXED];
366 pixman_index_type ent[32768];
370 * While the protocol is generous in format support, the
371 * sample implementation allows only packed RGB and GBR
372 * representations for data to simplify software rendering,
374 #define PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \
381 #define PIXMAN_FORMAT_BPP(f) (((f) >> 24) )
382 #define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0xff)
383 #define PIXMAN_FORMAT_A(f) (((f) >> 12) & 0x0f)
384 #define PIXMAN_FORMAT_R(f) (((f) >> 8) & 0x0f)
385 #define PIXMAN_FORMAT_G(f) (((f) >> 4) & 0x0f)
386 #define PIXMAN_FORMAT_B(f) (((f) ) & 0x0f)
387 #define PIXMAN_FORMAT_RGB(f) (((f) ) & 0xfff)
388 #define PIXMAN_FORMAT_VIS(f) (((f) ) & 0xffff)
389 #define PIXMAN_FORMAT_DEPTH(f) (PIXMAN_FORMAT_A(f) + \
390 PIXMAN_FORMAT_R(f) + \
391 PIXMAN_FORMAT_G(f) + \
394 #define PIXMAN_TYPE_OTHER 0
395 #define PIXMAN_TYPE_A 1
396 #define PIXMAN_TYPE_ARGB 2
397 #define PIXMAN_TYPE_ABGR 3
398 #define PIXMAN_TYPE_COLOR 4
399 #define PIXMAN_TYPE_GRAY 5
400 #define PIXMAN_TYPE_YUY2 6
401 #define PIXMAN_TYPE_YV12 7
403 #define PIXMAN_FORMAT_COLOR(f) (PIXMAN_FORMAT_TYPE(f) & 2)
407 PIXMAN_a8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8),
408 PIXMAN_x8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8),
409 PIXMAN_a8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8),
410 PIXMAN_x8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8),
413 PIXMAN_r8g8b8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8),
414 PIXMAN_b8g8r8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8),
417 PIXMAN_r5g6b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5),
418 PIXMAN_b5g6r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5),
420 PIXMAN_a1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5),
421 PIXMAN_x1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5),
422 PIXMAN_a1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5),
423 PIXMAN_x1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5),
424 PIXMAN_a4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4),
425 PIXMAN_x4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4),
426 PIXMAN_a4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4),
427 PIXMAN_x4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4),
430 PIXMAN_a8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0),
431 PIXMAN_r3g3b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2),
432 PIXMAN_b2g3r3 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2),
433 PIXMAN_a2r2g2b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2),
434 PIXMAN_a2b2g2r2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2),
436 PIXMAN_c8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0),
437 PIXMAN_g8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0),
439 PIXMAN_x4a4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0),
441 PIXMAN_x4c4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0),
442 PIXMAN_x4g4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0),
445 PIXMAN_a4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0),
446 PIXMAN_r1g2b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1),
447 PIXMAN_b1g2r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1),
448 PIXMAN_a1r1g1b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1),
449 PIXMAN_a1b1g1r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1),
451 PIXMAN_c4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0),
452 PIXMAN_g4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0),
455 PIXMAN_a1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0),
457 PIXMAN_g1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0),
460 PIXMAN_yuy2 = PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0),
461 PIXMAN_yv12 = PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0)
462 } pixman_format_code_t;
465 pixman_image_t *pixman_image_create_solid_fill (pixman_color_t *color);
466 pixman_image_t *pixman_image_create_linear_gradient (pixman_point_fixed_t *p1,
467 pixman_point_fixed_t *p2,
468 const pixman_gradient_stop_t *stops,
470 pixman_image_t *pixman_image_create_radial_gradient (pixman_point_fixed_t *inner,
471 pixman_point_fixed_t *outer,
472 pixman_fixed_t inner_radius,
473 pixman_fixed_t outer_radius,
474 const pixman_gradient_stop_t *stops,
476 pixman_image_t *pixman_image_create_conical_gradient (pixman_point_fixed_t *center,
477 pixman_fixed_t angle,
478 const pixman_gradient_stop_t *stops,
480 pixman_image_t *pixman_image_create_bits (pixman_format_code_t format,
484 int rowstride_bytes);
487 pixman_image_t *pixman_image_ref (pixman_image_t *image);
488 pixman_bool_t pixman_image_unref (pixman_image_t *image);
492 pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image,
493 pixman_region16_t *region);
494 void pixman_image_set_has_client_clip (pixman_image_t *image,
495 pixman_bool_t clien_clip);
496 pixman_bool_t pixman_image_set_transform (pixman_image_t *image,
497 const pixman_transform_t *transform);
498 void pixman_image_set_repeat (pixman_image_t *image,
499 pixman_repeat_t repeat);
500 pixman_bool_t pixman_image_set_filter (pixman_image_t *image,
501 pixman_filter_t filter,
502 const pixman_fixed_t *filter_params,
503 int n_filter_params);
504 void pixman_image_set_filter_params (pixman_image_t *image,
505 pixman_fixed_t *params,
507 void pixman_image_set_source_clipping (pixman_image_t *image,
508 pixman_bool_t source_clipping);
509 void pixman_image_set_alpha_map (pixman_image_t *image,
510 pixman_image_t *alpha_map,
513 void pixman_image_set_component_alpha (pixman_image_t *image,
514 pixman_bool_t component_alpha);
515 void pixman_image_set_accessors (pixman_image_t *image,
516 pixman_read_memory_func_t read_func,
517 pixman_write_memory_func_t write_func);
518 void pixman_image_set_indexed (pixman_image_t *image,
519 const pixman_indexed_t *indexed);
520 uint32_t *pixman_image_get_data (pixman_image_t *image);
521 int pixman_image_get_width (pixman_image_t *image);
522 int pixman_image_get_height (pixman_image_t *image);
523 int pixman_image_get_stride (pixman_image_t *image);
524 int pixman_image_get_depth (pixman_image_t *image);
525 pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op,
526 pixman_image_t *image,
527 pixman_color_t *color,
529 const pixman_rectangle16_t *rects);
532 pixman_bool_t pixman_compute_composite_region (pixman_region16_t * pRegion,
533 pixman_image_t * pSrc,
534 pixman_image_t * pMask,
535 pixman_image_t * pDst,
544 void pixman_image_composite (pixman_op_t op,
546 pixman_image_t *mask,
547 pixman_image_t *dest,
560 typedef struct pixman_edge pixman_edge_t;
561 typedef struct pixman_trapezoid pixman_trapezoid_t;
562 typedef struct pixman_trap pixman_trap_t;
563 typedef struct pixman_span_fix pixman_span_fix_t;
566 * An edge structure. This represents a single polygon edge
567 * and can be quickly stepped across small or large gaps in the
574 pixman_fixed_t stepx;
575 pixman_fixed_t signdx;
579 pixman_fixed_t stepx_small;
580 pixman_fixed_t stepx_big;
581 pixman_fixed_t dx_small;
582 pixman_fixed_t dx_big;
585 struct pixman_trapezoid
587 pixman_fixed_t top, bottom;
588 pixman_line_fixed_t left, right;
592 /* whether 't' is a well defined not obviously empty trapezoid */
593 #define pixman_trapezoid_valid(t) \
594 ((t)->left.p1.y != (t)->left.p2.y && \
595 (t)->right.p1.y != (t)->right.p2.y && \
596 (int) ((t)->bottom - (t)->top) > 0)
598 struct pixman_span_fix
600 pixman_fixed_t l, r, y;
605 pixman_span_fix_t top, bot;
608 pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y,
610 pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y,
612 void pixman_edge_step (pixman_edge_t *e,
614 void pixman_edge_init (pixman_edge_t *e,
616 pixman_fixed_t y_start,
617 pixman_fixed_t x_top,
618 pixman_fixed_t y_top,
619 pixman_fixed_t x_bot,
620 pixman_fixed_t y_bot);
621 void pixman_line_fixed_edge_init (pixman_edge_t *e,
624 const pixman_line_fixed_t *line,
627 void pixman_rasterize_edges (pixman_image_t *image,
632 void pixman_add_traps (pixman_image_t *image,
636 pixman_trap_t *traps);
637 void pixman_add_trapezoids (pixman_image_t *image,
641 const pixman_trapezoid_t *traps);
642 void pixman_rasterize_trapezoid (pixman_image_t *image,
643 const pixman_trapezoid_t *trap,
648 #endif /* PIXMAN_H__ */