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* Copyright © 2009 Red Hat, Inc.
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* Copyright © 2000 SuSE, Inc.
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* Copyright © 2007 Red Hat, Inc.
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* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
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* 2005 Lars Knoll & Zack Rusin, Trolltech
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* 2008 Aaron Plattner, NVIDIA Corporation
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Red Hat not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. Red Hat makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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#include "pixman-private.h"
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#include "pixman-combine32.h"
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#include "pixman-private.h"
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#define SCANLINE_BUFFER_LENGTH 8192
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general_composite_rect (pixman_implementation_t *imp,
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pixman_image_t * mask,
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pixman_image_t * dest,
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uint8_t stack_scanline_buffer[SCANLINE_BUFFER_LENGTH * 3];
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const pixman_format_code_t src_format =
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src->type == BITS ? src->bits.format : 0;
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const pixman_format_code_t mask_format =
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mask && mask->type == BITS ? mask->bits.format : 0;
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const pixman_format_code_t dest_format =
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dest->type == BITS ? dest->bits.format : 0;
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const int src_wide = PIXMAN_FORMAT_IS_WIDE (src_format);
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const int mask_wide = mask && PIXMAN_FORMAT_IS_WIDE (mask_format);
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const int dest_wide = PIXMAN_FORMAT_IS_WIDE (dest_format);
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const int wide = src_wide || mask_wide || dest_wide;
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const int Bpp = wide ? 8 : 4;
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uint8_t *scanline_buffer = stack_scanline_buffer;
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uint8_t *src_buffer, *mask_buffer, *dest_buffer;
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fetch_scanline_t fetch_src = NULL, fetch_mask = NULL, fetch_dest = NULL;
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pixman_combine_32_func_t compose;
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store_scanline_t store;
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source_image_class_t src_class, mask_class;
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pixman_bool_t component_alpha;
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if (width * Bpp > SCANLINE_BUFFER_LENGTH)
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scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
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src_buffer = scanline_buffer;
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mask_buffer = src_buffer + width * Bpp;
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dest_buffer = mask_buffer + width * Bpp;
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src_class = _pixman_image_classify (src,
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mask_class = SOURCE_IMAGE_CLASS_UNKNOWN;
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mask_class = _pixman_image_classify (mask,
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if (op == PIXMAN_OP_CLEAR)
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fetch_src = _pixman_image_get_scanline_64;
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fetch_src = _pixman_image_get_scanline_32;
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if (!mask || op == PIXMAN_OP_CLEAR)
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fetch_mask = _pixman_image_get_scanline_64;
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fetch_mask = _pixman_image_get_scanline_32;
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if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
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fetch_dest = _pixman_image_get_scanline_64;
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fetch_dest = _pixman_image_get_scanline_32;
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store = _pixman_image_store_scanline_64;
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store = _pixman_image_store_scanline_32;
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/* Skip the store step and composite directly into the
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* destination if the output format of the compose func matches
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* the destination format.
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!dest->common.alpha_map &&
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!dest->bits.write_func &&
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(op == PIXMAN_OP_ADD || op == PIXMAN_OP_OVER) &&
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(dest->bits.format == PIXMAN_a8r8g8b8 ||
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dest->bits.format == PIXMAN_x8r8g8b8))
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bits = dest->bits.bits;
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stride = dest->bits.rowstride;
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mask->common.type == BITS &&
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mask->common.component_alpha &&
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PIXMAN_FORMAT_RGB (mask->bits.format);
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compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
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compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
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compose = _pixman_implementation_combine_32_ca;
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compose = _pixman_implementation_combine_32;
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for (i = 0; i < height; ++i)
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/* fill first half of scanline with source */
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/* fetch mask before source so that fetching of
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source can be optimized */
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fetch_mask (mask, mask_x, mask_y + i,
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width, (void *)mask_buffer, 0, 0);
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if (mask_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
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if (src_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
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fetch_src (src, src_x, src_y + i,
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width, (void *)src_buffer, 0, 0);
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fetch_src (src, src_x, src_y + i,
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width, (void *)src_buffer, (void *)mask_buffer,
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fetch_mask (mask, mask_x, mask_y + i,
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width, (void *)mask_buffer, 0, 0);
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/* fill dest into second half of scanline */
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fetch_dest (dest, dest_x, dest_y + i,
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width, (void *)dest_buffer, 0, 0);
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compose (imp->toplevel, op,
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store (&(dest->bits), dest_x, dest_y + i, width,
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(void *)dest_buffer);
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compose (imp->toplevel, op,
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bits + (dest_y + i) * stride + dest_x,
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(void *)src_buffer, (void *)mask_buffer, width);
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if (scanline_buffer != stack_scanline_buffer)
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free (scanline_buffer);
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general_composite (pixman_implementation_t * imp,
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pixman_image_t * src,
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pixman_image_t * mask,
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pixman_image_t * dest,
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_pixman_walk_composite_region (imp, op, src, mask, dest, src_x, src_y,
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mask_x, mask_y, dest_x, dest_y,
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general_composite_rect);
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general_blt (pixman_implementation_t *imp,
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/* We can't blit unless we have sse2 or mmx */
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general_fill (pixman_implementation_t *imp,
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pixman_implementation_t *
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_pixman_implementation_create_general (void)
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pixman_implementation_t *imp = _pixman_implementation_create (NULL);
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_pixman_setup_combiner_functions_32 (imp);
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_pixman_setup_combiner_functions_64 (imp);
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imp->composite = general_composite;
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imp->blt = general_blt;
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imp->fill = general_fill;
added
removed
pixman/pixman-general.c
