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
36 #include "pixman-private.h"
37 #include "pixman-combine32.h"
38 #include "pixman-private.h"
40 #define SCANLINE_BUFFER_LENGTH 8192
43 general_composite_rect (pixman_implementation_t *imp,
57 return_if_fail (src != NULL);
58 return_if_fail (dest != NULL);
60 uint8_t stack_scanline_buffer[SCANLINE_BUFFER_LENGTH * 3];
61 const pixman_format_code_t srcFormat = src->type == BITS ? src->bits.format : 0;
62 const pixman_format_code_t maskFormat = mask && mask->type == BITS ? mask->bits.format : 0;
63 const pixman_format_code_t destFormat = dest->type == BITS ? dest->bits.format : 0;
64 const int srcWide = PIXMAN_FORMAT_16BPC(srcFormat);
65 const int maskWide = mask && PIXMAN_FORMAT_16BPC(maskFormat);
66 const int destWide = PIXMAN_FORMAT_16BPC(destFormat);
67 const int wide = srcWide || maskWide || destWide;
68 const int Bpp = wide ? 8 : 4;
69 uint8_t *scanline_buffer = stack_scanline_buffer;
70 uint8_t *src_buffer, *mask_buffer, *dest_buffer;
71 scanFetchProc fetchSrc = NULL, fetchMask = NULL, fetchDest = NULL;
72 pixman_combine_32_func_t compose;
74 source_pict_class_t srcClass, maskClass;
75 pixman_bool_t component_alpha;
80 if (width * Bpp > SCANLINE_BUFFER_LENGTH)
82 scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
88 src_buffer = scanline_buffer;
89 mask_buffer = src_buffer + width * Bpp;
90 dest_buffer = mask_buffer + width * Bpp;
92 srcClass = _pixman_image_classify (src,
96 maskClass = SOURCE_IMAGE_CLASS_UNKNOWN;
99 maskClass = _pixman_image_classify (mask,
104 if (op == PIXMAN_OP_CLEAR)
107 fetchSrc = _pixman_image_get_scanline_64;
109 fetchSrc = _pixman_image_get_scanline_32;
111 if (!mask || op == PIXMAN_OP_CLEAR)
114 fetchMask = _pixman_image_get_scanline_64;
116 fetchMask = _pixman_image_get_scanline_32;
118 if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
121 fetchDest = _pixman_image_get_scanline_64;
123 fetchDest = _pixman_image_get_scanline_32;
126 store = _pixman_image_store_scanline_64;
128 store = _pixman_image_store_scanline_32;
130 /* Skip the store step and composite directly into the
131 * destination if the output format of the compose func matches
132 * the destination format.
135 !dest->common.alpha_map &&
136 !dest->common.write_func &&
137 (op == PIXMAN_OP_ADD || op == PIXMAN_OP_OVER) &&
138 (dest->bits.format == PIXMAN_a8r8g8b8 ||
139 dest->bits.format == PIXMAN_x8r8g8b8))
146 bits = dest->bits.bits;
147 stride = dest->bits.rowstride;
159 mask->common.type == BITS &&
160 mask->common.component_alpha &&
161 PIXMAN_FORMAT_RGB (mask->bits.format);
166 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
168 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
173 compose = _pixman_implementation_combine_32_ca;
175 compose = _pixman_implementation_combine_32;
184 for (i = 0; i < height; ++i)
186 /* fill first half of scanline with source */
191 /* fetch mask before source so that fetching of
192 source can be optimized */
193 fetchMask (mask, mask_x, mask_y + i,
194 width, (void *)mask_buffer, 0, 0);
196 if (maskClass == SOURCE_IMAGE_CLASS_HORIZONTAL)
200 if (srcClass == SOURCE_IMAGE_CLASS_HORIZONTAL)
202 fetchSrc (src, src_x, src_y + i,
203 width, (void *)src_buffer, 0, 0);
208 fetchSrc (src, src_x, src_y + i,
209 width, (void *)src_buffer, (void *)mask_buffer,
215 fetchMask (mask, mask_x, mask_y + i,
216 width, (void *)mask_buffer, 0, 0);
221 /* fill dest into second half of scanline */
223 fetchDest (dest, dest_x, dest_y + i,
224 width, (void *)dest_buffer, 0, 0);
227 compose (imp->toplevel, op, (void *)dest_buffer, (void *)src_buffer, (void *)mask_buffer, width);
230 store (&(dest->bits), dest_x, dest_y + i, width,
231 (void *)dest_buffer);
236 compose (imp->toplevel, op, bits + (dest_y + i) * stride +
238 (void *)src_buffer, (void *)mask_buffer, width);
242 if (scanline_buffer != stack_scanline_buffer)
243 free (scanline_buffer);
247 general_composite (pixman_implementation_t * imp,
249 pixman_image_t * src,
250 pixman_image_t * mask,
251 pixman_image_t * dest,
261 _pixman_walk_composite_region (imp, op, src, mask, dest, src_x, src_y,
262 mask_x, mask_y, dest_x, dest_y, width, height,
263 general_composite_rect);
267 general_blt (pixman_implementation_t *imp,
274 int src_x, int src_y,
275 int dst_x, int dst_y,
276 int width, int height)
278 /* We can't blit unless we have sse2 or mmx */
284 general_fill (pixman_implementation_t *imp,
297 pixman_implementation_t *
298 _pixman_implementation_create_general (void)
300 pixman_implementation_t *imp = _pixman_implementation_create (NULL);
302 _pixman_setup_combiner_functions_32 (imp);
303 _pixman_setup_combiner_functions_64 (imp);
305 imp->composite = general_composite;
306 imp->blt = general_blt;
307 imp->fill = general_fill;