1 /* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */
3 * Copyright © 2000 SuSE, Inc.
4 * Copyright © 2007 Red Hat, Inc.
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of SuSE not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission. SuSE makes no representations about the
13 * suitability of this software for any purpose. It is provided "as is"
14 * without express or implied warranty.
16 * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
18 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * Author: Keith Packard, SuSE, Inc.
29 #include "pixman-private.h"
34 * Operator optimizations based on source or destination opacity
39 pixman_op_t op_src_dst_opaque;
40 pixman_op_t op_src_opaque;
41 pixman_op_t op_dst_opaque;
44 #define NO_OPTIMIZATION(a) (a), (a), (a), (a)
46 static const operator_info_t operator_table[] =
48 /* Input Operator SRC&DST Opaque SRC Opaque DST Opaque */
49 { NO_OPTIMIZATION (PIXMAN_OP_CLEAR) },
50 { NO_OPTIMIZATION (PIXMAN_OP_SRC) },
51 { NO_OPTIMIZATION (PIXMAN_OP_DST) },
52 { PIXMAN_OP_OVER, PIXMAN_OP_SRC, PIXMAN_OP_SRC, PIXMAN_OP_OVER },
53 { PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST },
54 { PIXMAN_OP_IN, PIXMAN_OP_SRC, PIXMAN_OP_IN, PIXMAN_OP_SRC },
55 { PIXMAN_OP_IN_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_DST, PIXMAN_OP_IN_REVERSE },
56 { PIXMAN_OP_OUT, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT, PIXMAN_OP_CLEAR },
57 { PIXMAN_OP_OUT_REVERSE, PIXMAN_OP_CLEAR, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT_REVERSE },
58 { PIXMAN_OP_ATOP, PIXMAN_OP_SRC, PIXMAN_OP_IN, PIXMAN_OP_OVER },
59 { PIXMAN_OP_ATOP_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_IN_REVERSE },
60 { PIXMAN_OP_XOR, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT, PIXMAN_OP_OUT_REVERSE },
61 { NO_OPTIMIZATION (PIXMAN_OP_ADD) },
62 { PIXMAN_OP_SATURATE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST },
64 { PIXMAN_OP_NONE /* 0x0e */ },
65 { PIXMAN_OP_NONE /* 0x0f */ },
67 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_CLEAR) },
68 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_SRC) },
69 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_DST) },
70 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_OVER) },
71 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_OVER_REVERSE) },
72 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_IN) },
73 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_IN_REVERSE) },
74 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_OUT) },
75 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_OUT_REVERSE) },
76 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_ATOP) },
77 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_ATOP_REVERSE) },
78 { NO_OPTIMIZATION (PIXMAN_OP_DISJOINT_XOR) },
80 { PIXMAN_OP_NONE /* 0x1c */ },
81 { PIXMAN_OP_NONE /* 0x1d */ },
82 { PIXMAN_OP_NONE /* 0x1e */ },
83 { PIXMAN_OP_NONE /* 0x1f */ },
85 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_CLEAR) },
86 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_SRC) },
87 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_DST) },
88 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_OVER) },
89 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_OVER_REVERSE) },
90 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_IN) },
91 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_IN_REVERSE) },
92 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_OUT) },
93 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_OUT_REVERSE) },
94 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_ATOP) },
95 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_ATOP_REVERSE) },
96 { NO_OPTIMIZATION (PIXMAN_OP_CONJOINT_XOR) },
98 { PIXMAN_OP_NONE /* 0x2c */ },
99 { PIXMAN_OP_NONE /* 0x2d */ },
100 { PIXMAN_OP_NONE /* 0x2e */ },
101 { PIXMAN_OP_NONE /* 0x2f */ },
103 { NO_OPTIMIZATION (PIXMAN_OP_MULTIPLY) },
104 { NO_OPTIMIZATION (PIXMAN_OP_SCREEN) },
105 { NO_OPTIMIZATION (PIXMAN_OP_OVERLAY) },
106 { NO_OPTIMIZATION (PIXMAN_OP_DARKEN) },
107 { NO_OPTIMIZATION (PIXMAN_OP_LIGHTEN) },
108 { NO_OPTIMIZATION (PIXMAN_OP_COLOR_DODGE) },
109 { NO_OPTIMIZATION (PIXMAN_OP_COLOR_BURN) },
110 { NO_OPTIMIZATION (PIXMAN_OP_HARD_LIGHT) },
111 { NO_OPTIMIZATION (PIXMAN_OP_SOFT_LIGHT) },
112 { NO_OPTIMIZATION (PIXMAN_OP_DIFFERENCE) },
113 { NO_OPTIMIZATION (PIXMAN_OP_EXCLUSION) },
114 { NO_OPTIMIZATION (PIXMAN_OP_HSL_HUE) },
115 { NO_OPTIMIZATION (PIXMAN_OP_HSL_SATURATION) },
116 { NO_OPTIMIZATION (PIXMAN_OP_HSL_COLOR) },
117 { NO_OPTIMIZATION (PIXMAN_OP_HSL_LUMINOSITY) },
122 static pixman_implementation_t *imp;
125 * Optimize the current operator based on opacity of source or destination
126 * The output operator should be mathematically equivalent to the source.
129 optimize_operator (pixman_op_t op,
134 const operator_info_t *info = &(operator_table[op]);
135 pixman_bool_t is_source_opaque, is_dest_opaque;
137 assert (info->op == op);
139 is_source_opaque = (src_flags & mask_flags) & FAST_PATH_IS_OPAQUE;
140 is_dest_opaque = dst_flags & FAST_PATH_IS_OPAQUE;
142 if (is_source_opaque && is_dest_opaque)
143 return info->op_src_dst_opaque;
144 else if (is_source_opaque)
145 return info->op_src_opaque;
146 else if (is_dest_opaque)
147 return info->op_dst_opaque;
153 apply_workaround (pixman_image_t *image,
156 uint32_t ** save_bits,
160 if (image && (image->common.flags & FAST_PATH_NEEDS_WORKAROUND))
162 /* Some X servers generate images that point to the
163 * wrong place in memory, but then set the clip region
164 * to point to the right place. Because of an old bug
165 * in pixman, this would actually work.
167 * Here we try and undo the damage
169 int bpp = PIXMAN_FORMAT_BPP (image->bits.format) / 8;
170 pixman_box32_t *extents;
174 extents = pixman_region32_extents (&(image->common.clip_region));
178 *save_bits = image->bits.bits;
182 pixman_region32_translate (&(image->common.clip_region), -dx, -dy);
184 t = (uint8_t *)image->bits.bits;
185 t += dy * image->bits.rowstride * 4 + dx * bpp;
186 image->bits.bits = (uint32_t *)t;
194 unapply_workaround (pixman_image_t *image, uint32_t *bits, int dx, int dy)
196 if (image && (image->common.flags & FAST_PATH_NEEDS_WORKAROUND))
198 image->bits.bits = bits;
199 pixman_region32_translate (&image->common.clip_region, dx, dy);
204 * Computing composite region
206 static inline pixman_bool_t
207 clip_general_image (pixman_region32_t * region,
208 pixman_region32_t * clip,
212 if (pixman_region32_n_rects (region) == 1 &&
213 pixman_region32_n_rects (clip) == 1)
215 pixman_box32_t * rbox = pixman_region32_rectangles (region, NULL);
216 pixman_box32_t * cbox = pixman_region32_rectangles (clip, NULL);
219 if (rbox->x1 < (v = cbox->x1 + dx))
221 if (rbox->x2 > (v = cbox->x2 + dx))
223 if (rbox->y1 < (v = cbox->y1 + dy))
225 if (rbox->y2 > (v = cbox->y2 + dy))
227 if (rbox->x1 >= rbox->x2 || rbox->y1 >= rbox->y2)
229 pixman_region32_init (region);
233 else if (!pixman_region32_not_empty (clip))
240 pixman_region32_translate (region, -dx, -dy);
242 if (!pixman_region32_intersect (region, region, clip))
246 pixman_region32_translate (region, dx, dy);
249 return pixman_region32_not_empty (region);
252 static inline pixman_bool_t
253 clip_source_image (pixman_region32_t * region,
254 pixman_image_t * image,
258 /* Source clips are ignored, unless they are explicitly turned on
259 * and the clip in question was set by an X client. (Because if
260 * the clip was not set by a client, then it is a hierarchy
261 * clip and those should always be ignored for sources).
263 if (!image->common.clip_sources || !image->common.client_clip)
266 return clip_general_image (region,
267 &image->common.clip_region,
272 * returns FALSE if the final region is empty. Indistinguishable from
273 * an allocation failure, but rendering ignores those anyways.
276 pixman_compute_composite_region32 (pixman_region32_t * region,
277 pixman_image_t * src_image,
278 pixman_image_t * mask_image,
279 pixman_image_t * dst_image,
289 region->extents.x1 = dest_x;
290 region->extents.x2 = dest_x + width;
291 region->extents.y1 = dest_y;
292 region->extents.y2 = dest_y + height;
294 region->extents.x1 = MAX (region->extents.x1, 0);
295 region->extents.y1 = MAX (region->extents.y1, 0);
296 region->extents.x2 = MIN (region->extents.x2, dst_image->bits.width);
297 region->extents.y2 = MIN (region->extents.y2, dst_image->bits.height);
301 /* Check for empty operation */
302 if (region->extents.x1 >= region->extents.x2 ||
303 region->extents.y1 >= region->extents.y2)
305 pixman_region32_init (region);
309 if (dst_image->common.have_clip_region)
311 if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
313 pixman_region32_fini (region);
318 if (dst_image->common.alpha_map && dst_image->common.alpha_map->common.have_clip_region)
320 if (!clip_general_image (region, &dst_image->common.alpha_map->common.clip_region,
321 -dst_image->common.alpha_origin_x,
322 -dst_image->common.alpha_origin_y))
324 pixman_region32_fini (region);
329 /* clip against src */
330 if (src_image->common.have_clip_region)
332 if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))
334 pixman_region32_fini (region);
338 if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)
340 if (!clip_source_image (region, (pixman_image_t *)src_image->common.alpha_map,
341 dest_x - (src_x - src_image->common.alpha_origin_x),
342 dest_y - (src_y - src_image->common.alpha_origin_y)))
344 pixman_region32_fini (region);
348 /* clip against mask */
349 if (mask_image && mask_image->common.have_clip_region)
351 if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))
353 pixman_region32_fini (region);
356 if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)
358 if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,
359 dest_x - (mask_x - mask_image->common.alpha_origin_x),
360 dest_y - (mask_y - mask_image->common.alpha_origin_y)))
362 pixman_region32_fini (region);
372 walk_region_internal (pixman_implementation_t *imp,
374 pixman_image_t * src_image,
375 pixman_image_t * mask_image,
376 pixman_image_t * dst_image,
385 pixman_bool_t src_repeat,
386 pixman_bool_t mask_repeat,
387 pixman_region32_t * region,
388 pixman_composite_func_t composite_rect)
390 int w, h, w_this, h_this;
391 int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
392 int src_dy = src_y - dest_y;
393 int src_dx = src_x - dest_x;
394 int mask_dy = mask_y - dest_y;
395 int mask_dx = mask_x - dest_x;
396 const pixman_box32_t *pbox;
399 pbox = pixman_region32_rectangles (region, &n);
401 /* Fast path for non-repeating sources */
402 if (!src_repeat && !mask_repeat)
406 (*composite_rect) (imp, op,
407 src_image, mask_image, dst_image,
415 pbox->y2 - pbox->y1);
425 h = pbox->y2 - pbox->y1;
426 y_src = pbox->y1 + src_dy;
427 y_msk = pbox->y1 + mask_dy;
433 w = pbox->x2 - pbox->x1;
434 x_src = pbox->x1 + src_dx;
435 x_msk = pbox->x1 + mask_dx;
440 y_msk = MOD (y_msk, mask_image->bits.height);
441 if (h_this > mask_image->bits.height - y_msk)
442 h_this = mask_image->bits.height - y_msk;
447 y_src = MOD (y_src, src_image->bits.height);
448 if (h_this > src_image->bits.height - y_src)
449 h_this = src_image->bits.height - y_src;
458 x_msk = MOD (x_msk, mask_image->bits.width);
459 if (w_this > mask_image->bits.width - x_msk)
460 w_this = mask_image->bits.width - x_msk;
465 x_src = MOD (x_src, src_image->bits.width);
466 if (w_this > src_image->bits.width - x_src)
467 w_this = src_image->bits.width - x_src;
470 (*composite_rect) (imp, op,
471 src_image, mask_image, dst_image,
472 x_src, y_src, x_msk, y_msk, x_dst, y_dst,
491 static force_inline pixman_bool_t
492 image_covers (pixman_image_t *image,
493 pixman_box32_t *extents,
497 if (image->common.type == BITS &&
498 image->common.repeat == PIXMAN_REPEAT_NONE)
500 if (x > extents->x1 || y > extents->y1 ||
501 x + image->bits.width < extents->x2 ||
502 y + image->bits.height < extents->y2)
512 do_composite (pixman_implementation_t *imp,
515 pixman_image_t *mask,
516 pixman_image_t *dest,
526 #define N_CACHED_FAST_PATHS 8
527 static THREAD_LOCAL pixman_fast_path_t tls_cache[N_CACHED_FAST_PATHS];
528 pixman_format_code_t src_format, mask_format, dest_format;
529 uint32_t src_flags, mask_flags, dest_flags;
530 pixman_region32_t region;
531 pixman_box32_t *extents;
535 int mask_dx, mask_dy;
537 int dest_dx, dest_dy;
538 pixman_bool_t need_workaround;
539 pixman_fast_path_t *cache;
540 const pixman_fast_path_t *info;
543 src_format = src->common.extended_format_code;
544 src_flags = src->common.flags;
548 mask_format = mask->common.extended_format_code;
549 mask_flags = mask->common.flags;
553 mask_format = PIXMAN_null;
554 mask_flags = FAST_PATH_IS_OPAQUE;
557 dest_format = dest->common.extended_format_code;
558 dest_flags = dest->common.flags;
560 /* Check for pixbufs */
561 if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&
562 (src->type == BITS && src->bits.bits == mask->bits.bits) &&
563 (src->common.repeat == mask->common.repeat) &&
564 (src_x == mask_x && src_y == mask_y))
566 if (src_format == PIXMAN_x8b8g8r8)
567 src_format = mask_format = PIXMAN_pixbuf;
568 else if (src_format == PIXMAN_x8r8g8b8)
569 src_format = mask_format = PIXMAN_rpixbuf;
572 /* Check for workaround */
573 need_workaround = (src_flags | mask_flags | dest_flags) & FAST_PATH_NEEDS_WORKAROUND;
577 apply_workaround (src, &src_x, &src_y, &src_bits, &src_dx, &src_dy);
578 apply_workaround (mask, &mask_x, &mask_y, &mask_bits, &mask_dx, &mask_dy);
579 apply_workaround (dest, &dest_x, &dest_y, &dest_bits, &dest_dx, &dest_dy);
582 pixman_region32_init (®ion);
584 if (!pixman_compute_composite_region32 (
585 ®ion, src, mask, dest,
586 src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))
591 extents = pixman_region32_extents (®ion);
593 if (image_covers (src, extents, dest_x - src_x, dest_y - src_y))
594 src_flags |= FAST_PATH_COVERS_CLIP;
596 if (mask && image_covers (mask, extents, dest_x - mask_x, dest_y - mask_y))
597 mask_flags |= FAST_PATH_COVERS_CLIP;
600 * Check if we can replace our operator by a simpler one
601 * if the src or dest are opaque. The output operator should be
602 * mathematically equivalent to the source.
604 op = optimize_operator (op, src_flags, mask_flags, dest_flags);
605 if (op == PIXMAN_OP_DST ||
606 op == PIXMAN_OP_CONJOINT_DST ||
607 op == PIXMAN_OP_DISJOINT_DST)
614 for (i = 0; i < N_CACHED_FAST_PATHS; ++i)
618 /* Note that we check for equality here, not whether
619 * the cached fast path matches. This is to prevent
620 * us from selecting an overly general fast path
621 * when a more specific one would work.
623 if (info->op == op &&
624 info->src_format == src_format &&
625 info->mask_format == mask_format &&
626 info->dest_format == dest_format &&
627 info->src_flags == src_flags &&
628 info->mask_flags == mask_flags &&
629 info->dest_flags == dest_flags &&
638 info = imp->fast_paths;
640 while (info->op != PIXMAN_OP_NONE)
642 if ((info->op == op || info->op == PIXMAN_OP_any) &&
644 ((info->src_format == src_format) ||
645 (info->src_format == PIXMAN_any)) &&
646 ((info->mask_format == mask_format) ||
647 (info->mask_format == PIXMAN_any)) &&
648 ((info->dest_format == dest_format) ||
649 (info->dest_format == PIXMAN_any)) &&
651 (info->src_flags & src_flags) == info->src_flags &&
652 (info->mask_flags & mask_flags) == info->mask_flags &&
653 (info->dest_flags & dest_flags) == info->dest_flags)
655 /* Set i to the last spot in the cache so that the
656 * move-to-front code below will work
658 i = N_CACHED_FAST_PATHS - 1;
669 /* We didn't find a compositing routine. This should not happen, but if
670 * it somehow does, just exit rather than crash.
675 walk_region_internal (imp, op,
677 src_x, src_y, mask_x, mask_y,
680 (src_flags & FAST_PATH_SIMPLE_REPEAT),
681 (mask_flags & FAST_PATH_SIMPLE_REPEAT),
682 ®ion, info->func);
686 /* Make a copy of info->func, because info->func may change when
687 * we update the cache.
689 pixman_composite_func_t func = info->func;
692 cache[i + 1] = cache[i];
695 cache[0].src_format = src_format;
696 cache[0].src_flags = src_flags;
697 cache[0].mask_format = mask_format;
698 cache[0].mask_flags = mask_flags;
699 cache[0].dest_format = dest_format;
700 cache[0].dest_flags = dest_flags;
701 cache[0].func = func;
707 unapply_workaround (src, src_bits, src_dx, src_dy);
708 unapply_workaround (mask, mask_bits, mask_dx, mask_dy);
709 unapply_workaround (dest, dest_bits, dest_dx, dest_dy);
712 pixman_region32_fini (®ion);
716 pixman_image_composite (pixman_op_t op,
717 pixman_image_t * src,
718 pixman_image_t * mask,
719 pixman_image_t * dest,
729 pixman_image_composite32 (op, src, mask, dest, src_x, src_y,
730 mask_x, mask_y, dest_x, dest_y, width, height);
734 * Work around GCC bug causing crashes in Mozilla with SSE2
736 * When using -msse, gcc generates movdqa instructions assuming that
737 * the stack is 16 byte aligned. Unfortunately some applications, such
738 * as Mozilla and Mono, end up aligning the stack to 4 bytes, which
739 * causes the movdqa instructions to fail.
741 * The __force_align_arg_pointer__ makes gcc generate a prologue that
742 * realigns the stack pointer to 16 bytes.
744 * On x86-64 this is not necessary because the standard ABI already
745 * calls for a 16 byte aligned stack.
747 * See https://bugs.freedesktop.org/show_bug.cgi?id=15693
749 #if defined (USE_SSE2) && defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
750 __attribute__((__force_align_arg_pointer__))
753 pixman_image_composite32 (pixman_op_t op,
754 pixman_image_t * src,
755 pixman_image_t * mask,
756 pixman_image_t * dest,
766 _pixman_image_validate (src);
768 _pixman_image_validate (mask);
769 _pixman_image_validate (dest);
772 imp = _pixman_choose_implementation ();
774 do_composite (imp, op,
782 PIXMAN_EXPORT pixman_bool_t
783 pixman_blt (uint32_t *src_bits,
797 imp = _pixman_choose_implementation ();
799 return _pixman_implementation_blt (imp, src_bits, dst_bits, src_stride, dst_stride,
806 PIXMAN_EXPORT pixman_bool_t
807 pixman_fill (uint32_t *bits,
817 imp = _pixman_choose_implementation ();
819 return _pixman_implementation_fill (imp, bits, stride, bpp, x, y, width, height, xor);
823 color_to_uint32 (const pixman_color_t *color)
826 (color->alpha >> 8 << 24) |
827 (color->red >> 8 << 16) |
828 (color->green & 0xff00) |
833 color_to_pixel (pixman_color_t * color,
835 pixman_format_code_t format)
837 uint32_t c = color_to_uint32 (color);
839 if (!(format == PIXMAN_a8r8g8b8 ||
840 format == PIXMAN_x8r8g8b8 ||
841 format == PIXMAN_a8b8g8r8 ||
842 format == PIXMAN_x8b8g8r8 ||
843 format == PIXMAN_b8g8r8a8 ||
844 format == PIXMAN_b8g8r8x8 ||
845 format == PIXMAN_r5g6b5 ||
846 format == PIXMAN_b5g6r5 ||
847 format == PIXMAN_a8))
852 if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_ABGR)
854 c = ((c & 0xff000000) >> 0) |
855 ((c & 0x00ff0000) >> 16) |
856 ((c & 0x0000ff00) >> 0) |
857 ((c & 0x000000ff) << 16);
859 if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_BGRA)
861 c = ((c & 0xff000000) >> 24) |
862 ((c & 0x00ff0000) >> 8) |
863 ((c & 0x0000ff00) << 8) |
864 ((c & 0x000000ff) << 24);
867 if (format == PIXMAN_a8)
869 else if (format == PIXMAN_r5g6b5 ||
870 format == PIXMAN_b5g6r5)
871 c = CONVERT_8888_TO_0565 (c);
874 printf ("color: %x %x %x %x\n", color->alpha, color->red, color->green, color->blue);
875 printf ("pixel: %x\n", c);
882 PIXMAN_EXPORT pixman_bool_t
883 pixman_image_fill_rectangles (pixman_op_t op,
884 pixman_image_t * dest,
885 pixman_color_t * color,
887 const pixman_rectangle16_t *rects)
889 pixman_box32_t stack_boxes[6];
890 pixman_box32_t *boxes;
891 pixman_bool_t result;
896 boxes = pixman_malloc_ab (sizeof (pixman_box32_t), n_rects);
905 for (i = 0; i < n_rects; ++i)
907 boxes[i].x1 = rects[i].x;
908 boxes[i].y1 = rects[i].y;
909 boxes[i].x2 = boxes[i].x1 + rects[i].width;
910 boxes[i].y2 = boxes[i].y1 + rects[i].height;
913 result = pixman_image_fill_boxes (op, dest, color, n_rects, boxes);
915 if (boxes != stack_boxes)
921 PIXMAN_EXPORT pixman_bool_t
922 pixman_image_fill_boxes (pixman_op_t op,
923 pixman_image_t * dest,
924 pixman_color_t * color,
926 const pixman_box32_t *boxes)
928 pixman_image_t *solid;
932 _pixman_image_validate (dest);
934 if (color->alpha == 0xffff)
936 if (op == PIXMAN_OP_OVER)
940 if (op == PIXMAN_OP_CLEAR)
952 if (op == PIXMAN_OP_SRC)
956 if (color_to_pixel (color, &pixel, dest->bits.format))
958 pixman_region32_t fill_region;
960 pixman_box32_t *rects;
962 if (!pixman_region32_init_rects (&fill_region, boxes, n_boxes))
965 if (dest->common.have_clip_region)
967 if (!pixman_region32_intersect (&fill_region,
969 &dest->common.clip_region))
973 rects = pixman_region32_rectangles (&fill_region, &n_rects);
974 for (j = 0; j < n_rects; ++j)
976 const pixman_box32_t *rect = &(rects[j]);
977 pixman_fill (dest->bits.bits, dest->bits.rowstride, PIXMAN_FORMAT_BPP (dest->bits.format),
978 rect->x1, rect->y1, rect->x2 - rect->x1, rect->y2 - rect->y1,
982 pixman_region32_fini (&fill_region);
987 solid = pixman_image_create_solid_fill (color);
991 for (i = 0; i < n_boxes; ++i)
993 const pixman_box32_t *box = &(boxes[i]);
995 pixman_image_composite32 (op, solid, NULL, dest,
998 box->x2 - box->x1, box->y2 - box->y1);
1001 pixman_image_unref (solid);
1009 * Returns the version of the pixman library encoded in a single
1010 * integer as per %PIXMAN_VERSION_ENCODE. The encoding ensures that
1011 * later versions compare greater than earlier versions.
1013 * A run-time comparison to check that pixman's version is greater than
1014 * or equal to version X.Y.Z could be performed as follows:
1016 * <informalexample><programlisting>
1017 * if (pixman_version() >= PIXMAN_VERSION_ENCODE(X,Y,Z)) {...}
1018 * </programlisting></informalexample>
1020 * See also pixman_version_string() as well as the compile-time
1021 * equivalents %PIXMAN_VERSION and %PIXMAN_VERSION_STRING.
1023 * Return value: the encoded version.
1026 pixman_version (void)
1028 return PIXMAN_VERSION;
1032 * pixman_version_string:
1034 * Returns the version of the pixman library as a human-readable string
1035 * of the form "X.Y.Z".
1037 * See also pixman_version() as well as the compile-time equivalents
1038 * %PIXMAN_VERSION_STRING and %PIXMAN_VERSION.
1040 * Return value: a string containing the version.
1042 PIXMAN_EXPORT const char*
1043 pixman_version_string (void)
1045 return PIXMAN_VERSION_STRING;
1049 * pixman_format_supported_source:
1050 * @format: A pixman_format_code_t format
1052 * Return value: whether the provided format code is a supported
1053 * format for a pixman surface used as a source in
1056 * Currently, all pixman_format_code_t values are supported.
1058 PIXMAN_EXPORT pixman_bool_t
1059 pixman_format_supported_source (pixman_format_code_t format)
1063 /* 32 bpp formats */
1064 case PIXMAN_a2b10g10r10:
1065 case PIXMAN_x2b10g10r10:
1066 case PIXMAN_a2r10g10b10:
1067 case PIXMAN_x2r10g10b10:
1068 case PIXMAN_a8r8g8b8:
1069 case PIXMAN_x8r8g8b8:
1070 case PIXMAN_a8b8g8r8:
1071 case PIXMAN_x8b8g8r8:
1072 case PIXMAN_b8g8r8a8:
1073 case PIXMAN_b8g8r8x8:
1078 /* 16 bpp formats */
1079 case PIXMAN_a1r5g5b5:
1080 case PIXMAN_x1r5g5b5:
1081 case PIXMAN_a1b5g5r5:
1082 case PIXMAN_x1b5g5r5:
1083 case PIXMAN_a4r4g4b4:
1084 case PIXMAN_x4r4g4b4:
1085 case PIXMAN_a4b4g4r4:
1086 case PIXMAN_x4b4g4r4:
1091 case PIXMAN_a2r2g2b2:
1092 case PIXMAN_a2b2g2r2:
1096 /* Collides with PIXMAN_c8
1099 /* Collides with PIXMAN_g8
1106 case PIXMAN_a1r1g1b1:
1107 case PIXMAN_a1b1g1r1:
1124 * pixman_format_supported_destination:
1125 * @format: A pixman_format_code_t format
1127 * Return value: whether the provided format code is a supported
1128 * format for a pixman surface used as a destination in
1131 * Currently, all pixman_format_code_t values are supported
1132 * except for the YUV formats.
1134 PIXMAN_EXPORT pixman_bool_t
1135 pixman_format_supported_destination (pixman_format_code_t format)
1137 /* YUV formats cannot be written to at the moment */
1138 if (format == PIXMAN_yuy2 || format == PIXMAN_yv12)
1141 return pixman_format_supported_source (format);
1144 PIXMAN_EXPORT pixman_bool_t
1145 pixman_compute_composite_region (pixman_region16_t * region,
1146 pixman_image_t * src_image,
1147 pixman_image_t * mask_image,
1148 pixman_image_t * dst_image,
1158 pixman_region32_t r32;
1159 pixman_bool_t retval;
1161 pixman_region32_init (&r32);
1163 retval = pixman_compute_composite_region32 (
1164 &r32, src_image, mask_image, dst_image,
1165 src_x, src_y, mask_x, mask_y, dest_x, dest_y,
1170 if (!pixman_region16_copy_from_region32 (region, &r32))
1174 pixman_region32_fini (&r32);