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131 lines
4.9 KiB
131 lines
4.9 KiB
/**************************************************************************** |
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* graphics/nxglib/lcd/nxglib_moverectangle.c |
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* |
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* Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <stdint.h> |
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#include <nuttx/lcd/lcd.h> |
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#include <nuttx/nx/nxglib.h> |
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#include "nxglib_bitblit.h" |
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/**************************************************************************** |
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* Pre-Processor Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: nxgl_moverectangle_*bpp |
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* |
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* Descripton: |
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* Move a rectangular region from location to another in the |
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* LCD memory. The source is expressed as a rectangle; the |
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* destination position is expressed as a point corresponding to the |
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* translation of the upper, left-hand corner. |
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* |
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****************************************************************************/ |
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void NXGL_FUNCNAME(nxgl_moverectangle,NXGLIB_SUFFIX) |
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(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *rect, |
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FAR struct nxgl_point_s *offset) |
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{ |
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unsigned int ncols; |
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unsigned int srcrow; |
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unsigned int destrow; |
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/* Get the width of the rectange to move in pixels. */ |
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ncols = rect->pt2.x - rect->pt1.x + 1; |
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/* Case 1: The destination position (offset) is above the displayed |
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* position (rect) |
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*/ |
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if (offset->y < rect->pt1.y) |
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{ |
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/* Copy the rectangle from top down */ |
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for (srcrow = rect->pt1.y, destrow = offset->y; |
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srcrow <= rect->pt2.y; |
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srcrow++, destrow++) |
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{ |
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(void)pinfo->getrun(srcrow, rect->pt1.x, pinfo->buffer, ncols); |
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(void)pinfo->putrun(destrow, offset->x, pinfo->buffer, ncols); |
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} |
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} |
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/* Case 2: The destination position (offset) is below the displayed |
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* position (rect) |
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*/ |
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else |
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{ |
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unsigned int dy = rect->pt2.y - rect->pt1.y; |
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/* Copy the rectangle from the bottom up */ |
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for (srcrow = rect->pt2.y, destrow = offset->y + dy; |
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srcrow >= rect->pt1.y; |
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srcrow--, destrow--) |
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{ |
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(void)pinfo->getrun(srcrow, rect->pt1.x, pinfo->buffer, ncols); |
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(void)pinfo->putrun(destrow, offset->x, pinfo->buffer, ncols); |
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} |
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} |
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}
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