nuttx/graphics/nxglib/lcd/nxglib_copyrectangle.c
Alin Jerpelea 0a17b87286 graphics: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-09-10 22:54:31 +08:00

116 lines
3.6 KiB
C

/****************************************************************************
* graphics/nxglib/lcd/nxglib_copyrectangle.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <assert.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/nx/nxglib.h>
#include "nxglib_bitblit.h"
#include "nxglib_copyrun.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxgl_copyrectangle_*bpp
*
* Description:
* Copy a rectangular bitmap image into the specific position in the
* framebuffer memory.
*
****************************************************************************/
void NXGL_FUNCNAME(nxgl_copyrectangle, NXGLIB_SUFFIX)
(
FAR struct lcd_planeinfo_s *pinfo,
FAR const struct nxgl_rect_s *dest,
FAR const void *src,
FAR const struct nxgl_point_s *origin,
unsigned int srcstride)
{
FAR const uint8_t *sline;
unsigned int ncols;
unsigned int row;
unsigned int xoffset;
#if NXGLIB_BITSPERPIXEL < 8
unsigned int remainder;
#endif
/* Get the dimensions of the rectangle to fill: width in pixels,
* height in rows
*/
ncols = dest->pt2.x - dest->pt1.x + 1;
/* Set up to copy the image */
xoffset = dest->pt1.x - origin->x;
sline = (FAR const uint8_t *)src + NXGL_SCALEX(xoffset) +
(dest->pt1.y - origin->y) * srcstride;
#if NXGLIB_BITSPERPIXEL < 8
remainder = NXGL_REMAINDERX(xoffset);
#endif
/* Copy the image, one row at a time */
for (row = dest->pt1.y; row <= dest->pt2.y; row++)
{
#if NXGLIB_BITSPERPIXEL < 8
/* if the source pixel is not aligned with a byte boundary, then we
* will need to copy the image data to the run buffer first.
*/
if (remainder != 0)
{
NXGL_FUNCNAME(nxgl_copyrun, NXGLIB_SUFFIX)(sline,
pinfo->buffer,
remainder,
ncols);
pinfo->putrun(pinfo->dev, row, dest->pt1.x, pinfo->buffer, ncols);
}
else
#endif
{
/* The pixel data is byte aligned.
* Copy the image data directly from the image memory.
*/
pinfo->putrun(pinfo->dev, row, dest->pt1.x, sline, ncols);
}
/* Then adjust the source pointer to refer to the next line in
* the source image.
*/
sline += srcstride;
}
}