9140693567
In order to support multiple LCD instances per board, add a pointer from lcd_planeinfo_s to the lcd_dev_s which it belongs to. Also enhance the putrun, getrun, putarea and getarea methods to pass through the lcd_dev_s pointer to the respective device driver. Port all LCD device drivers to this lcd_planeinfo_s extension. Enhance SSD1306 driver to support multiple LCDs. Signed-off-by: Michael Jung <michael.jung@secore.ly>
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/****************************************************************************
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* graphics/nxglib/lcd/nxglib_moverectangle.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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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* 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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* Description:
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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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(
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FAR struct lcd_planeinfo_s *pinfo,
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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 rectangle 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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pinfo->getrun(pinfo->dev, srcrow, rect->pt1.x, pinfo->buffer,
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ncols);
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pinfo->putrun(pinfo->dev, destrow, offset->x, pinfo->buffer,
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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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pinfo->getrun(pinfo->dev, srcrow, rect->pt1.x, pinfo->buffer,
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ncols);
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pinfo->putrun(pinfo->dev, destrow, offset->x, pinfo->buffer,
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ncols);
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}
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}
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}
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