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  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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