2 * Copyright © 2009 Red Hat, Inc.
3 * Copyright © 2000 SuSE, Inc.
4 * Copyright © 2007 Red Hat, Inc.
5 * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
6 * 2005 Lars Knoll & Zack Rusin, Trolltech
7 * 2008 Aaron Plattner, NVIDIA Corporation
9 * Permission to use, copy, modify, distribute, and sell this software and its
10 * documentation for any purpose is hereby granted without fee, provided that
11 * the above copyright notice appear in all copies and that both that
12 * copyright notice and this permission notice appear in supporting
13 * documentation, and that the name of Red Hat not be used in advertising or
14 * publicity pertaining to distribution of the software without specific,
15 * written prior permission. Red Hat makes no representations about the
16 * suitability of this software for any purpose. It is provided "as is"
17 * without express or implied warranty.
19 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
20 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
23 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
24 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
25 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
38 #include "pixman-private.h"
39 #include "pixman-combine32.h"
40 #include "pixman-private.h"
42 typedef struct pixman_iter_t pixman_iter_t;
45 ITER_NARROW = (1 << 0)
50 uint32_t *(* get_scanline) (pixman_iter_t *iter, const uint32_t *mask);
51 void (* write_back) (pixman_iter_t *iter);
53 pixman_image_t * image;
60 src_get_scanline_null (pixman_iter_t *iter, const uint32_t *mask)
66 src_get_scanline_narrow (pixman_iter_t *iter, const uint32_t *mask)
68 _pixman_image_get_scanline_32 (
69 iter->image, iter->x, iter->y++, iter->width, iter->buffer, mask);
75 src_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
77 _pixman_image_get_scanline_64 (
78 iter->image, iter->x, iter->y++, iter->width, iter->buffer, mask);
84 src_iter_init (pixman_implementation_t *imp,
86 pixman_image_t *image,
87 int x, int y, int width, int height,
88 uint8_t *buffer, iter_flags_t flags)
94 iter->buffer = (uint32_t *)buffer;
97 iter->get_scanline = src_get_scanline_null;
98 else if (flags & ITER_NARROW)
99 iter->get_scanline = src_get_scanline_narrow;
101 iter->get_scanline = src_get_scanline_wide;
105 dest_get_scanline_narrow (pixman_iter_t *iter, const uint32_t *mask)
107 _pixman_image_get_scanline_32 (
108 iter->image, iter->x, iter->y, iter->width, iter->buffer, mask);
114 dest_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
116 _pixman_image_get_scanline_64 (
117 iter->image, iter->x, iter->y, iter->width, iter->buffer, mask);
123 write_back_narrow (pixman_iter_t *iter)
125 _pixman_image_store_scanline_32 (
126 &iter->image->bits, iter->x, iter->y++, iter->width, iter->buffer);
130 write_back_wide (pixman_iter_t *iter)
132 _pixman_image_store_scanline_64 (
133 &iter->image->bits, iter->x, iter->y++, iter->width, iter->buffer);
137 dest_iter_init (pixman_implementation_t *imp,
139 pixman_image_t *image,
140 int x, int y, int width, int height,
141 uint8_t *buffer, iter_flags_t flags)
147 iter->buffer = (uint32_t *)buffer;
149 if (flags & ITER_NARROW)
151 iter->get_scanline = dest_get_scanline_narrow;
152 iter->write_back = write_back_narrow;
156 iter->get_scanline = dest_get_scanline_wide;
157 iter->write_back = write_back_wide;
161 #define SCANLINE_BUFFER_LENGTH 8192
164 general_composite_rect (pixman_implementation_t *imp,
166 pixman_image_t * src,
167 pixman_image_t * mask,
168 pixman_image_t * dest,
178 uint64_t stack_scanline_buffer[(SCANLINE_BUFFER_LENGTH * 3 + 7) / 8];
179 uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer;
180 uint8_t *src_buffer, *mask_buffer, *dest_buffer;
181 pixman_iter_t src_iter, mask_iter, dest_iter;
182 pixman_combine_32_func_t compose;
183 pixman_bool_t component_alpha;
188 if ((src->common.flags & FAST_PATH_NARROW_FORMAT) &&
189 (!mask || mask->common.flags & FAST_PATH_NARROW_FORMAT) &&
190 (dest->common.flags & FAST_PATH_NARROW_FORMAT))
192 narrow = ITER_NARROW;
201 if (width * Bpp > SCANLINE_BUFFER_LENGTH)
203 scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
205 if (!scanline_buffer)
209 src_buffer = scanline_buffer;
210 mask_buffer = src_buffer + width * Bpp;
211 dest_buffer = mask_buffer + width * Bpp;
213 src_iter_init (imp->toplevel, &src_iter, src,
214 src_x, src_y, width, height,
217 src_iter_init (imp->toplevel, &mask_iter, mask,
218 mask_x, mask_y, width, height,
219 mask_buffer, narrow);
221 dest_iter_init (imp->toplevel, &dest_iter, dest,
222 dest_x, dest_y, width, height,
223 dest_buffer, narrow);
227 mask->common.type == BITS &&
228 mask->common.component_alpha &&
229 PIXMAN_FORMAT_RGB (mask->bits.format);
234 compose = _pixman_implementation_combine_32_ca;
236 compose = _pixman_implementation_combine_32;
241 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
243 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
249 for (i = 0; i < height; ++i)
253 m = mask_iter.get_scanline (&mask_iter, NULL);
254 s = src_iter.get_scanline (&src_iter, m);
255 d = dest_iter.get_scanline (&dest_iter, NULL);
257 compose (imp->toplevel, op, d, s, m, width);
259 dest_iter.write_back (&dest_iter);
262 if (scanline_buffer != (uint8_t *) stack_scanline_buffer)
263 free (scanline_buffer);
266 static const pixman_fast_path_t general_fast_path[] =
268 { PIXMAN_OP_any, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, general_composite_rect },
273 general_blt (pixman_implementation_t *imp,
287 /* We can't blit unless we have sse2 or mmx */
293 general_fill (pixman_implementation_t *imp,
306 pixman_implementation_t *
307 _pixman_implementation_create_general (void)
309 pixman_implementation_t *imp = _pixman_implementation_create (NULL, general_fast_path);
311 _pixman_setup_combiner_functions_32 (imp);
312 _pixman_setup_combiner_functions_64 (imp);
314 imp->blt = general_blt;
315 imp->fill = general_fill;