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
37 #include "pixman-private.h"
38 #include "pixman-combine32.h"
39 #include "pixman-private.h"
41 #define SCANLINE_BUFFER_LENGTH 8192
44 general_composite_rect (pixman_implementation_t *imp,
58 return_if_fail (src != NULL);
59 return_if_fail (dest != NULL);
61 uint8_t stack_scanline_buffer[SCANLINE_BUFFER_LENGTH * 3];
62 const pixman_format_code_t srcFormat = src->type == BITS ? src->bits.format : 0;
63 const pixman_format_code_t maskFormat = mask && mask->type == BITS ? mask->bits.format : 0;
64 const pixman_format_code_t destFormat = dest->type == BITS ? dest->bits.format : 0;
65 const int srcWide = PIXMAN_FORMAT_16BPC(srcFormat);
66 const int maskWide = mask && PIXMAN_FORMAT_16BPC(maskFormat);
67 const int destWide = PIXMAN_FORMAT_16BPC(destFormat);
68 const int wide = srcWide || maskWide || destWide;
69 const int Bpp = wide ? 8 : 4;
70 uint8_t *scanline_buffer = stack_scanline_buffer;
71 uint8_t *src_buffer, *mask_buffer, *dest_buffer;
72 scanFetchProc fetchSrc = NULL, fetchMask = NULL, fetchDest = NULL;
73 pixman_combine_32_func_t compose;
75 source_pict_class_t srcClass, maskClass;
76 pixman_bool_t component_alpha;
81 if (width * Bpp > SCANLINE_BUFFER_LENGTH)
83 scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
89 src_buffer = scanline_buffer;
90 mask_buffer = src_buffer + width * Bpp;
91 dest_buffer = mask_buffer + width * Bpp;
93 srcClass = _pixman_image_classify (src,
97 maskClass = SOURCE_IMAGE_CLASS_UNKNOWN;
100 maskClass = _pixman_image_classify (mask,
105 if (op == PIXMAN_OP_CLEAR)
108 fetchSrc = _pixman_image_get_scanline_64;
110 fetchSrc = _pixman_image_get_scanline_32;
112 if (!mask || op == PIXMAN_OP_CLEAR)
115 fetchMask = _pixman_image_get_scanline_64;
117 fetchMask = _pixman_image_get_scanline_32;
119 if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
122 fetchDest = _pixman_image_get_scanline_64;
124 fetchDest = _pixman_image_get_scanline_32;
127 store = _pixman_image_store_scanline_64;
129 store = _pixman_image_store_scanline_32;
131 /* Skip the store step and composite directly into the
132 * destination if the output format of the compose func matches
133 * the destination format.
136 !dest->common.alpha_map &&
137 !dest->common.write_func &&
138 (op == PIXMAN_OP_ADD || op == PIXMAN_OP_OVER) &&
139 (dest->bits.format == PIXMAN_a8r8g8b8 ||
140 dest->bits.format == PIXMAN_x8r8g8b8))
147 bits = dest->bits.bits;
148 stride = dest->bits.rowstride;
160 mask->common.type == BITS &&
161 mask->common.component_alpha &&
162 PIXMAN_FORMAT_RGB (mask->bits.format);
167 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
169 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
174 compose = _pixman_implementation_combine_32_ca;
176 compose = _pixman_implementation_combine_32;
185 for (i = 0; i < height; ++i)
187 /* fill first half of scanline with source */
192 /* fetch mask before source so that fetching of
193 source can be optimized */
194 fetchMask (mask, mask_x, mask_y + i,
195 width, (void *)mask_buffer, 0, 0);
197 if (maskClass == SOURCE_IMAGE_CLASS_HORIZONTAL)
201 if (srcClass == SOURCE_IMAGE_CLASS_HORIZONTAL)
203 fetchSrc (src, src_x, src_y + i,
204 width, (void *)src_buffer, 0, 0);
209 fetchSrc (src, src_x, src_y + i,
210 width, (void *)src_buffer, (void *)mask_buffer,
216 fetchMask (mask, mask_x, mask_y + i,
217 width, (void *)mask_buffer, 0, 0);
222 /* fill dest into second half of scanline */
224 fetchDest (dest, dest_x, dest_y + i,
225 width, (void *)dest_buffer, 0, 0);
228 compose (imp->toplevel, op, (void *)dest_buffer, (void *)src_buffer, (void *)mask_buffer, width);
231 store (&(dest->bits), dest_x, dest_y + i, width,
232 (void *)dest_buffer);
237 compose (imp->toplevel, op, bits + (dest_y + i) * stride +
239 (void *)src_buffer, (void *)mask_buffer, width);
243 if (scanline_buffer != stack_scanline_buffer)
244 free (scanline_buffer);
248 general_composite (pixman_implementation_t * imp,
250 pixman_image_t * src,
251 pixman_image_t * mask,
252 pixman_image_t * dest,
262 pixman_bool_t srcRepeat = src->type == BITS && src->common.repeat == PIXMAN_REPEAT_NORMAL;
263 pixman_bool_t maskRepeat = FALSE;
264 pixman_bool_t srcTransform = src->common.transform != NULL;
265 pixman_bool_t maskTransform = FALSE;
267 if (srcRepeat && srcTransform &&
268 src->bits.width == 1 &&
269 src->bits.height == 1)
271 srcTransform = FALSE;
274 if (mask && mask->type == BITS)
276 maskRepeat = mask->common.repeat == PIXMAN_REPEAT_NORMAL;
278 maskTransform = mask->common.transform != 0;
279 if (mask->common.filter == PIXMAN_FILTER_CONVOLUTION)
280 maskTransform = TRUE;
282 if (maskRepeat && maskTransform &&
283 mask->bits.width == 1 &&
284 mask->bits.height == 1)
286 maskTransform = FALSE;
290 /* CompositeGeneral optimizes 1x1 repeating images itself */
291 if (src->type == BITS &&
292 src->bits.width == 1 && src->bits.height == 1)
297 if (mask && mask->type == BITS &&
298 mask->bits.width == 1 && mask->bits.height == 1)
303 /* if we are transforming, repeats are handled in fbFetchTransformed */
310 _pixman_walk_composite_region (imp, op, src, mask, dest, src_x, src_y,
311 mask_x, mask_y, dest_x, dest_y, width, height,
312 srcRepeat, maskRepeat, general_composite_rect);
316 general_blt (pixman_implementation_t *imp,
323 int src_x, int src_y,
324 int dst_x, int dst_y,
325 int width, int height)
327 /* We can't blit unless we have sse2 or mmx */
333 general_fill (pixman_implementation_t *imp,
346 pixman_implementation_t *
347 _pixman_implementation_create_general (pixman_implementation_t *toplevel)
349 pixman_implementation_t *imp = _pixman_implementation_create (toplevel, NULL);
351 _pixman_setup_combiner_functions_32 (imp);
352 _pixman_setup_combiner_functions_64 (imp);
354 imp->composite = general_composite;
355 imp->blt = general_blt;
356 imp->fill = general_fill;