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;
42 } optimized_operator_info_t;
44 static const optimized_operator_info_t optimized_operators[] =
46 /* Input Operator SRC&DST Opaque SRC Opaque DST Opaque */
47 { PIXMAN_OP_OVER, PIXMAN_OP_SRC, PIXMAN_OP_SRC, PIXMAN_OP_OVER },
48 { PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST },
49 { PIXMAN_OP_IN, PIXMAN_OP_SRC, PIXMAN_OP_IN, PIXMAN_OP_SRC },
50 { PIXMAN_OP_IN_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_DST, PIXMAN_OP_IN_REVERSE },
51 { PIXMAN_OP_OUT, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT, PIXMAN_OP_CLEAR },
52 { PIXMAN_OP_OUT_REVERSE, PIXMAN_OP_CLEAR, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT_REVERSE },
53 { PIXMAN_OP_ATOP, PIXMAN_OP_SRC, PIXMAN_OP_IN, PIXMAN_OP_OVER },
54 { PIXMAN_OP_ATOP_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_IN_REVERSE },
55 { PIXMAN_OP_XOR, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT, PIXMAN_OP_OUT_REVERSE },
56 { PIXMAN_OP_SATURATE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST },
60 static pixman_implementation_t *imp;
63 * Check if the current operator could be optimized
65 static const optimized_operator_info_t*
66 pixman_operator_can_be_optimized (pixman_op_t op)
68 const optimized_operator_info_t *info;
70 for (info = optimized_operators; info->op != PIXMAN_OP_NONE; info++)
79 * Optimize the current operator based on opacity of source or destination
80 * The output operator should be mathematically equivalent to the source.
83 pixman_optimize_operator (pixman_op_t op,
84 pixman_image_t *src_image,
85 pixman_image_t *mask_image,
86 pixman_image_t *dst_image)
88 pixman_bool_t is_source_opaque;
89 pixman_bool_t is_dest_opaque;
90 const optimized_operator_info_t *info = pixman_operator_can_be_optimized (op);
92 if (!info || mask_image)
95 is_source_opaque = _pixman_image_is_opaque (src_image);
96 is_dest_opaque = _pixman_image_is_opaque (dst_image);
98 if (is_source_opaque == FALSE && is_dest_opaque == FALSE)
101 if (is_source_opaque && is_dest_opaque)
102 return info->op_src_dst_opaque;
103 else if (is_source_opaque)
104 return info->op_src_opaque;
105 else if (is_dest_opaque)
106 return info->op_dst_opaque;
113 apply_workaround (pixman_image_t *image,
116 uint32_t ** save_bits,
120 if (image && image->common.need_workaround)
122 /* Some X servers generate images that point to the
123 * wrong place in memory, but then set the clip region
124 * to point to the right place. Because of an old bug
125 * in pixman, this would actually work.
127 * Here we try and undo the damage
129 int bpp = PIXMAN_FORMAT_BPP (image->bits.format) / 8;
130 pixman_box32_t *extents;
134 extents = pixman_region32_extents (&(image->common.clip_region));
138 *save_bits = image->bits.bits;
142 pixman_region32_translate (&(image->common.clip_region), -dx, -dy);
144 t = (uint8_t *)image->bits.bits;
145 t += dy * image->bits.rowstride * 4 + dx * bpp;
146 image->bits.bits = (uint32_t *)t;
154 unapply_workaround (pixman_image_t *image, uint32_t *bits, int dx, int dy)
156 if (image && image->common.need_workaround)
158 image->bits.bits = bits;
159 pixman_region32_translate (&image->common.clip_region, dx, dy);
164 * Computing composite region
166 static inline pixman_bool_t
167 clip_general_image (pixman_region32_t * region,
168 pixman_region32_t * clip,
172 if (pixman_region32_n_rects (region) == 1 &&
173 pixman_region32_n_rects (clip) == 1)
175 pixman_box32_t * rbox = pixman_region32_rectangles (region, NULL);
176 pixman_box32_t * cbox = pixman_region32_rectangles (clip, NULL);
179 if (rbox->x1 < (v = cbox->x1 + dx))
181 if (rbox->x2 > (v = cbox->x2 + dx))
183 if (rbox->y1 < (v = cbox->y1 + dy))
185 if (rbox->y2 > (v = cbox->y2 + dy))
187 if (rbox->x1 >= rbox->x2 || rbox->y1 >= rbox->y2)
189 pixman_region32_init (region);
193 else if (!pixman_region32_not_empty (clip))
200 pixman_region32_translate (region, -dx, -dy);
202 if (!pixman_region32_intersect (region, region, clip))
206 pixman_region32_translate (region, dx, dy);
209 return pixman_region32_not_empty (region);
212 static inline pixman_bool_t
213 clip_source_image (pixman_region32_t * region,
214 pixman_image_t * image,
218 /* Source clips are ignored, unless they are explicitly turned on
219 * and the clip in question was set by an X client. (Because if
220 * the clip was not set by a client, then it is a hierarchy
221 * clip and those should always be ignored for sources).
223 if (!image->common.clip_sources || !image->common.client_clip)
226 return clip_general_image (region,
227 &image->common.clip_region,
232 * returns FALSE if the final region is empty. Indistinguishable from
233 * an allocation failure, but rendering ignores those anyways.
236 pixman_compute_composite_region32 (pixman_region32_t * region,
237 pixman_image_t * src_image,
238 pixman_image_t * mask_image,
239 pixman_image_t * dst_image,
249 region->extents.x1 = dest_x;
250 region->extents.x2 = dest_x + width;
251 region->extents.y1 = dest_y;
252 region->extents.y2 = dest_y + height;
254 region->extents.x1 = MAX (region->extents.x1, 0);
255 region->extents.y1 = MAX (region->extents.y1, 0);
256 region->extents.x2 = MIN (region->extents.x2, dst_image->bits.width);
257 region->extents.y2 = MIN (region->extents.y2, dst_image->bits.height);
261 /* Check for empty operation */
262 if (region->extents.x1 >= region->extents.x2 ||
263 region->extents.y1 >= region->extents.y2)
265 pixman_region32_init (region);
269 if (dst_image->common.have_clip_region)
271 if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
273 pixman_region32_fini (region);
278 if (dst_image->common.alpha_map && dst_image->common.alpha_map->common.have_clip_region)
280 if (!clip_general_image (region, &dst_image->common.alpha_map->common.clip_region,
281 -dst_image->common.alpha_origin_x,
282 -dst_image->common.alpha_origin_y))
284 pixman_region32_fini (region);
289 /* clip against src */
290 if (src_image->common.have_clip_region)
292 if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))
294 pixman_region32_fini (region);
298 if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)
300 if (!clip_source_image (region, (pixman_image_t *)src_image->common.alpha_map,
301 dest_x - (src_x - src_image->common.alpha_origin_x),
302 dest_y - (src_y - src_image->common.alpha_origin_y)))
304 pixman_region32_fini (region);
308 /* clip against mask */
309 if (mask_image && mask_image->common.have_clip_region)
311 if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))
313 pixman_region32_fini (region);
316 if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)
318 if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,
319 dest_x - (mask_x - mask_image->common.alpha_origin_x),
320 dest_y - (mask_y - mask_image->common.alpha_origin_y)))
322 pixman_region32_fini (region);
332 walk_region_internal (pixman_implementation_t *imp,
334 pixman_image_t * src_image,
335 pixman_image_t * mask_image,
336 pixman_image_t * dst_image,
345 pixman_bool_t src_repeat,
346 pixman_bool_t mask_repeat,
347 pixman_region32_t * region,
348 pixman_composite_func_t composite_rect)
350 int w, h, w_this, h_this;
351 int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
352 int src_dy = src_y - dest_y;
353 int src_dx = src_x - dest_x;
354 int mask_dy = mask_y - dest_y;
355 int mask_dx = mask_x - dest_x;
356 const pixman_box32_t *pbox;
359 pbox = pixman_region32_rectangles (region, &n);
361 /* Fast path for non-repeating sources */
362 if (!src_repeat && !mask_repeat)
366 (*composite_rect) (imp, op,
367 src_image, mask_image, dst_image,
375 pbox->y2 - pbox->y1);
385 h = pbox->y2 - pbox->y1;
386 y_src = pbox->y1 + src_dy;
387 y_msk = pbox->y1 + mask_dy;
393 w = pbox->x2 - pbox->x1;
394 x_src = pbox->x1 + src_dx;
395 x_msk = pbox->x1 + mask_dx;
400 y_msk = MOD (y_msk, mask_image->bits.height);
401 if (h_this > mask_image->bits.height - y_msk)
402 h_this = mask_image->bits.height - y_msk;
407 y_src = MOD (y_src, src_image->bits.height);
408 if (h_this > src_image->bits.height - y_src)
409 h_this = src_image->bits.height - y_src;
418 x_msk = MOD (x_msk, mask_image->bits.width);
419 if (w_this > mask_image->bits.width - x_msk)
420 w_this = mask_image->bits.width - x_msk;
425 x_src = MOD (x_src, src_image->bits.width);
426 if (w_this > src_image->bits.width - x_src)
427 w_this = src_image->bits.width - x_src;
430 (*composite_rect) (imp, op,
431 src_image, mask_image, dst_image,
432 x_src, y_src, x_msk, y_msk, x_dst, y_dst,
451 static force_inline pixman_bool_t
452 image_covers (pixman_image_t *image,
453 pixman_box32_t *extents,
457 if (image->common.type == BITS &&
458 image->common.repeat == PIXMAN_REPEAT_NONE)
460 if (x > extents->x1 || y > extents->y1 ||
461 x + image->bits.width < extents->x2 ||
462 y + image->bits.height < extents->y2)
472 do_composite (pixman_implementation_t *imp,
475 pixman_image_t *mask,
476 pixman_image_t *dest,
486 pixman_format_code_t src_format, mask_format, dest_format;
487 uint32_t src_flags, mask_flags, dest_flags;
488 pixman_region32_t region;
489 pixman_box32_t *extents;
491 src_format = src->common.extended_format_code;
492 src_flags = src->common.flags;
496 mask_format = mask->common.extended_format_code;
497 mask_flags = mask->common.flags;
501 mask_format = PIXMAN_null;
505 dest_format = dest->common.extended_format_code;
506 dest_flags = dest->common.flags;
508 /* Check for pixbufs */
509 if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&
510 (src->type == BITS && src->bits.bits == mask->bits.bits) &&
511 (src->common.repeat == mask->common.repeat) &&
512 (src_x == mask_x && src_y == mask_y))
514 if (src_format == PIXMAN_x8b8g8r8)
515 src_format = mask_format = PIXMAN_pixbuf;
516 else if (src_format == PIXMAN_x8r8g8b8)
517 src_format = mask_format = PIXMAN_rpixbuf;
520 pixman_region32_init (®ion);
522 if (!pixman_compute_composite_region32 (
523 ®ion, src, mask, dest,
524 src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))
529 extents = pixman_region32_extents (®ion);
531 if (image_covers (src, extents, dest_x - src_x, dest_y - src_y))
532 src_flags |= FAST_PATH_COVERS_CLIP;
534 if (mask && image_covers (mask, extents, dest_x - mask_x, dest_y - mask_y))
535 mask_flags |= FAST_PATH_COVERS_CLIP;
539 const pixman_fast_path_t *info;
541 for (info = imp->fast_paths; info->op != PIXMAN_OP_NONE; ++info)
543 if ((info->op == op || info->op == PIXMAN_OP_any) &&
545 ((info->src_format == src_format) ||
546 (info->src_format == PIXMAN_any)) &&
547 (info->src_flags & src_flags) == info->src_flags &&
549 ((info->mask_format == mask_format) ||
550 (info->mask_format == PIXMAN_any)) &&
551 (info->mask_flags & mask_flags) == info->mask_flags &&
553 ((info->dest_format == dest_format) ||
554 (info->dest_format == PIXMAN_any)) &&
555 (info->dest_flags & dest_flags) == info->dest_flags)
557 walk_region_internal (imp, op,
559 src_x, src_y, mask_x, mask_y,
562 (src_flags & FAST_PATH_SIMPLE_REPEAT),
563 (mask_flags & FAST_PATH_SIMPLE_REPEAT),
575 pixman_region32_fini (®ion);
579 * Work around GCC bug causing crashes in Mozilla with SSE2
581 * When using -msse, gcc generates movdqa instructions assuming that
582 * the stack is 16 byte aligned. Unfortunately some applications, such
583 * as Mozilla and Mono, end up aligning the stack to 4 bytes, which
584 * causes the movdqa instructions to fail.
586 * The __force_align_arg_pointer__ makes gcc generate a prologue that
587 * realigns the stack pointer to 16 bytes.
589 * On x86-64 this is not necessary because the standard ABI already
590 * calls for a 16 byte aligned stack.
592 * See https://bugs.freedesktop.org/show_bug.cgi?id=15693
594 #if defined (USE_SSE2) && defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
595 __attribute__((__force_align_arg_pointer__))
598 pixman_image_composite (pixman_op_t op,
599 pixman_image_t * src,
600 pixman_image_t * mask,
601 pixman_image_t * dest,
611 pixman_image_composite32 (op, src, mask, dest, src_x, src_y,
612 mask_x, mask_y, dest_x, dest_y, width, height);
616 pixman_image_composite32 (pixman_op_t op,
617 pixman_image_t * src,
618 pixman_image_t * mask,
619 pixman_image_t * dest,
632 int mask_dx, mask_dy;
634 int dest_dx, dest_dy;
635 pixman_bool_t need_workaround;
637 _pixman_image_validate (src);
639 _pixman_image_validate (mask);
640 _pixman_image_validate (dest);
643 * Check if we can replace our operator by a simpler one
644 * if the src or dest are opaque. The output operator should be
645 * mathematically equivalent to the source.
647 op = pixman_optimize_operator(op, src, mask, dest);
648 if (op == PIXMAN_OP_DST ||
649 op == PIXMAN_OP_CONJOINT_DST ||
650 op == PIXMAN_OP_DISJOINT_DST)
656 imp = _pixman_choose_implementation ();
659 (src->common.need_workaround) ||
660 (mask && mask->common.need_workaround) ||
661 (dest->common.need_workaround);
665 apply_workaround (src, &src_x, &src_y, &src_bits, &src_dx, &src_dy);
666 apply_workaround (mask, &mask_x, &mask_y, &mask_bits, &mask_dx, &mask_dy);
667 apply_workaround (dest, &dest_x, &dest_y, &dest_bits, &dest_dx, &dest_dy);
670 do_composite (imp, op,
679 if (src->common.need_workaround)
680 unapply_workaround (src, src_bits, src_dx, src_dy);
681 if (mask && mask->common.need_workaround)
682 unapply_workaround (mask, mask_bits, mask_dx, mask_dy);
683 if (dest->common.need_workaround)
684 unapply_workaround (dest, dest_bits, dest_dx, dest_dy);
688 PIXMAN_EXPORT pixman_bool_t
689 pixman_blt (uint32_t *src_bits,
703 imp = _pixman_choose_implementation ();
705 return _pixman_implementation_blt (imp, src_bits, dst_bits, src_stride, dst_stride,
712 PIXMAN_EXPORT pixman_bool_t
713 pixman_fill (uint32_t *bits,
723 imp = _pixman_choose_implementation ();
725 return _pixman_implementation_fill (imp, bits, stride, bpp, x, y, width, height, xor);
729 color_to_uint32 (const pixman_color_t *color)
732 (color->alpha >> 8 << 24) |
733 (color->red >> 8 << 16) |
734 (color->green & 0xff00) |
739 color_to_pixel (pixman_color_t * color,
741 pixman_format_code_t format)
743 uint32_t c = color_to_uint32 (color);
745 if (!(format == PIXMAN_a8r8g8b8 ||
746 format == PIXMAN_x8r8g8b8 ||
747 format == PIXMAN_a8b8g8r8 ||
748 format == PIXMAN_x8b8g8r8 ||
749 format == PIXMAN_b8g8r8a8 ||
750 format == PIXMAN_b8g8r8x8 ||
751 format == PIXMAN_r5g6b5 ||
752 format == PIXMAN_b5g6r5 ||
753 format == PIXMAN_a8))
758 if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_ABGR)
760 c = ((c & 0xff000000) >> 0) |
761 ((c & 0x00ff0000) >> 16) |
762 ((c & 0x0000ff00) >> 0) |
763 ((c & 0x000000ff) << 16);
765 if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_BGRA)
767 c = ((c & 0xff000000) >> 24) |
768 ((c & 0x00ff0000) >> 8) |
769 ((c & 0x0000ff00) << 8) |
770 ((c & 0x000000ff) << 24);
773 if (format == PIXMAN_a8)
775 else if (format == PIXMAN_r5g6b5 ||
776 format == PIXMAN_b5g6r5)
777 c = CONVERT_8888_TO_0565 (c);
780 printf ("color: %x %x %x %x\n", color->alpha, color->red, color->green, color->blue);
781 printf ("pixel: %x\n", c);
788 PIXMAN_EXPORT pixman_bool_t
789 pixman_image_fill_rectangles (pixman_op_t op,
790 pixman_image_t * dest,
791 pixman_color_t * color,
793 const pixman_rectangle16_t *rects)
795 pixman_box32_t stack_boxes[6];
796 pixman_box32_t *boxes;
797 pixman_bool_t result;
802 boxes = pixman_malloc_ab (sizeof (pixman_box32_t), n_rects);
811 for (i = 0; i < n_rects; ++i)
813 boxes[i].x1 = rects[i].x;
814 boxes[i].y1 = rects[i].y;
815 boxes[i].x2 = boxes[i].x1 + rects[i].width;
816 boxes[i].y2 = boxes[i].y1 + rects[i].height;
819 result = pixman_image_fill_boxes (op, dest, color, n_rects, boxes);
821 if (boxes != stack_boxes)
827 PIXMAN_EXPORT pixman_bool_t
828 pixman_image_fill_boxes (pixman_op_t op,
829 pixman_image_t * dest,
830 pixman_color_t * color,
832 const pixman_box32_t *boxes)
834 pixman_image_t *solid;
838 _pixman_image_validate (dest);
840 if (color->alpha == 0xffff)
842 if (op == PIXMAN_OP_OVER)
846 if (op == PIXMAN_OP_CLEAR)
858 if (op == PIXMAN_OP_SRC)
862 if (color_to_pixel (color, &pixel, dest->bits.format))
864 pixman_region32_t fill_region;
866 pixman_box32_t *rects;
868 if (!pixman_region32_init_rects (&fill_region, boxes, n_boxes))
871 if (dest->common.have_clip_region)
873 if (!pixman_region32_intersect (&fill_region,
875 &dest->common.clip_region))
879 rects = pixman_region32_rectangles (&fill_region, &n_rects);
880 for (j = 0; j < n_rects; ++j)
882 const pixman_box32_t *rect = &(rects[j]);
883 pixman_fill (dest->bits.bits, dest->bits.rowstride, PIXMAN_FORMAT_BPP (dest->bits.format),
884 rect->x1, rect->y1, rect->x2 - rect->x1, rect->y2 - rect->y1,
888 pixman_region32_fini (&fill_region);
893 solid = pixman_image_create_solid_fill (color);
897 for (i = 0; i < n_boxes; ++i)
899 const pixman_box32_t *box = &(boxes[i]);
901 pixman_image_composite32 (op, solid, NULL, dest,
904 box->x2 - box->x1, box->y2 - box->y1);
907 pixman_image_unref (solid);
915 * Returns the version of the pixman library encoded in a single
916 * integer as per %PIXMAN_VERSION_ENCODE. The encoding ensures that
917 * later versions compare greater than earlier versions.
919 * A run-time comparison to check that pixman's version is greater than
920 * or equal to version X.Y.Z could be performed as follows:
922 * <informalexample><programlisting>
923 * if (pixman_version() >= PIXMAN_VERSION_ENCODE(X,Y,Z)) {...}
924 * </programlisting></informalexample>
926 * See also pixman_version_string() as well as the compile-time
927 * equivalents %PIXMAN_VERSION and %PIXMAN_VERSION_STRING.
929 * Return value: the encoded version.
932 pixman_version (void)
934 return PIXMAN_VERSION;
938 * pixman_version_string:
940 * Returns the version of the pixman library as a human-readable string
941 * of the form "X.Y.Z".
943 * See also pixman_version() as well as the compile-time equivalents
944 * %PIXMAN_VERSION_STRING and %PIXMAN_VERSION.
946 * Return value: a string containing the version.
948 PIXMAN_EXPORT const char*
949 pixman_version_string (void)
951 return PIXMAN_VERSION_STRING;
955 * pixman_format_supported_source:
956 * @format: A pixman_format_code_t format
958 * Return value: whether the provided format code is a supported
959 * format for a pixman surface used as a source in
962 * Currently, all pixman_format_code_t values are supported.
964 PIXMAN_EXPORT pixman_bool_t
965 pixman_format_supported_source (pixman_format_code_t format)
970 case PIXMAN_a2b10g10r10:
971 case PIXMAN_x2b10g10r10:
972 case PIXMAN_a2r10g10b10:
973 case PIXMAN_x2r10g10b10:
974 case PIXMAN_a8r8g8b8:
975 case PIXMAN_x8r8g8b8:
976 case PIXMAN_a8b8g8r8:
977 case PIXMAN_x8b8g8r8:
978 case PIXMAN_b8g8r8a8:
979 case PIXMAN_b8g8r8x8:
985 case PIXMAN_a1r5g5b5:
986 case PIXMAN_x1r5g5b5:
987 case PIXMAN_a1b5g5r5:
988 case PIXMAN_x1b5g5r5:
989 case PIXMAN_a4r4g4b4:
990 case PIXMAN_x4r4g4b4:
991 case PIXMAN_a4b4g4r4:
992 case PIXMAN_x4b4g4r4:
997 case PIXMAN_a2r2g2b2:
998 case PIXMAN_a2b2g2r2:
1002 /* Collides with PIXMAN_c8
1005 /* Collides with PIXMAN_g8
1012 case PIXMAN_a1r1g1b1:
1013 case PIXMAN_a1b1g1r1:
1030 * pixman_format_supported_destination:
1031 * @format: A pixman_format_code_t format
1033 * Return value: whether the provided format code is a supported
1034 * format for a pixman surface used as a destination in
1037 * Currently, all pixman_format_code_t values are supported
1038 * except for the YUV formats.
1040 PIXMAN_EXPORT pixman_bool_t
1041 pixman_format_supported_destination (pixman_format_code_t format)
1043 /* YUV formats cannot be written to at the moment */
1044 if (format == PIXMAN_yuy2 || format == PIXMAN_yv12)
1047 return pixman_format_supported_source (format);
1050 PIXMAN_EXPORT pixman_bool_t
1051 pixman_compute_composite_region (pixman_region16_t * region,
1052 pixman_image_t * src_image,
1053 pixman_image_t * mask_image,
1054 pixman_image_t * dst_image,
1064 pixman_region32_t r32;
1065 pixman_bool_t retval;
1067 pixman_region32_init (&r32);
1069 retval = pixman_compute_composite_region32 (
1070 &r32, src_image, mask_image, dst_image,
1071 src_x, src_y, mask_x, mask_y, dest_x, dest_y,
1076 if (!pixman_region16_copy_from_region32 (region, &r32))
1080 pixman_region32_fini (&r32);