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/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */
/*
* Copyright © 2011 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <pixman-config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include "pixman-private.h"
#include "pixman-combine32.h"
#include "pixman-inlines.h"
static void
noop_composite (pixman_implementation_t *imp,
pixman_composite_info_t *info)
{
return;
}
static uint32_t *
noop_get_scanline (pixman_iter_t *iter, const uint32_t *mask)
{
uint32_t *result = iter->buffer;
iter->buffer += iter->image->bits.rowstride;
return result;
}
static void
noop_init_solid_narrow (pixman_iter_t *iter,
const pixman_iter_info_t *info)
{
pixman_image_t *image = iter->image;
uint32_t *buffer = iter->buffer;
uint32_t *end = buffer + iter->width;
uint32_t color;
if (iter->image->type == SOLID)
color = image->solid.color_32;
else
color = image->bits.fetch_pixel_32 (&image->bits, 0, 0);
while (buffer < end)
*(buffer++) = color;
}
static void
noop_init_solid_wide (pixman_iter_t *iter,
const pixman_iter_info_t *info)
{
pixman_image_t *image = iter->image;
argb_t *buffer = (argb_t *)iter->buffer;
argb_t *end = buffer + iter->width;
argb_t color;
if (iter->image->type == SOLID)
color = image->solid.color_float;
else
color = image->bits.fetch_pixel_float (&image->bits, 0, 0);
while (buffer < end)
*(buffer++) = color;
}
static void
noop_init_direct_buffer (pixman_iter_t *iter, const pixman_iter_info_t *info)
{
pixman_image_t *image = iter->image;
iter->buffer =
image->bits.bits + iter->y * image->bits.rowstride + iter->x;
}
static void
dest_write_back_direct (pixman_iter_t *iter)
{
iter->buffer += iter->image->bits.rowstride;
}
static const pixman_iter_info_t noop_iters[] =
{
/* Source iters */
{ PIXMAN_any,
0, ITER_IGNORE_ALPHA | ITER_IGNORE_RGB | ITER_SRC,
NULL,
_pixman_iter_get_scanline_noop,
NULL
},
{ PIXMAN_solid,
FAST_PATH_NO_ALPHA_MAP, ITER_NARROW | ITER_SRC,
noop_init_solid_narrow,
_pixman_iter_get_scanline_noop,
NULL,
},
{ PIXMAN_solid,
FAST_PATH_NO_ALPHA_MAP, ITER_WIDE | ITER_SRC,
noop_init_solid_wide,
_pixman_iter_get_scanline_noop,
NULL
},
{ PIXMAN_a8r8g8b8,
FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM |
FAST_PATH_BITS_IMAGE | FAST_PATH_SAMPLES_COVER_CLIP_NEAREST,
ITER_NARROW | ITER_SRC,
noop_init_direct_buffer,
noop_get_scanline,
NULL
},
/* Dest iters */
{ PIXMAN_a8r8g8b8,
FAST_PATH_STD_DEST_FLAGS, ITER_NARROW | ITER_DEST,
noop_init_direct_buffer,
_pixman_iter_get_scanline_noop,
dest_write_back_direct
},
{ PIXMAN_x8r8g8b8,
FAST_PATH_STD_DEST_FLAGS, ITER_NARROW | ITER_DEST | ITER_LOCALIZED_ALPHA,
noop_init_direct_buffer,
_pixman_iter_get_scanline_noop,
dest_write_back_direct
},
{ PIXMAN_null },
};
static const pixman_fast_path_t noop_fast_paths[] =
{
{ PIXMAN_OP_DST, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, noop_composite },
{ PIXMAN_OP_NONE },
};
pixman_implementation_t *
_pixman_implementation_create_noop (pixman_implementation_t *fallback)
{
pixman_implementation_t *imp =
_pixman_implementation_create (fallback, noop_fast_paths);
imp->iter_info = noop_iters;
return imp;
}