124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/****************************************************************************
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* libs/libnx/nxmu/nx_bitmap.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 <errno.h>
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#include <debug.h>
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#include <nuttx/semaphore.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/nx/nxbe.h>
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#include <nuttx/nx/nxmu.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nx_bitmap
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*
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* Description:
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* Copy a rectangular region of a larger image into the rectangle in the
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* specified window.
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*
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* Input Parameters:
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* hwnd - The window that will receive the bitmap image
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* dest - Describes the rectangular region on the display that will
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* receive the the bit map.
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* src - The start of the source image.
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* origin - The origin of the upper, left-most corner of the full bitmap.
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* Both dest and origin are in window coordinates, however, origin
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* may lie outside of the display.
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* stride - The width of the full source image in pixels.
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*
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* Returned Value:
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* OK on success; ERROR on failure with errno set appropriately
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*
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****************************************************************************/
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int nx_bitmap(NXWINDOW hwnd, FAR const struct nxgl_rect_s *dest,
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FAR const void *src[CONFIG_NX_NPLANES],
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FAR const struct nxgl_point_s *origin, unsigned int stride)
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{
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FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd;
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struct nxsvrmsg_bitmap_s outmsg;
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int i;
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int ret;
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sem_t sem_done;
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#ifdef CONFIG_DEBUG_FEATURES
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if (!wnd || !dest || !src || !origin)
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{
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set_errno(EINVAL);
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return ERROR;
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}
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#endif
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/* Format the bitmap command */
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outmsg.msgid = NX_SVRMSG_BITMAP;
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outmsg.wnd = wnd;
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outmsg.stride = stride;
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for (i = 0; i < CONFIG_NX_NPLANES; i++)
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{
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outmsg.src[i] = src[i];
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}
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outmsg.origin.x = origin->x;
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outmsg.origin.y = origin->y;
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nxgl_rectcopy(&outmsg.dest, dest);
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/* Create a semaphore for tracking command completion */
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outmsg.sem_done = &sem_done;
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ret = _SEM_INIT(&sem_done, 0, 0);
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if (ret < 0)
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{
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gerr("ERROR: _SEM_INIT failed: %d\n", _SEM_ERRNO(ret));
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return ret;
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}
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/* Forward the fill command to the server */
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ret = nxmu_sendwindow(wnd, &outmsg, sizeof(struct nxsvrmsg_bitmap_s));
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/* Wait that the command is completed, so that caller can release the
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* buffer.
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*/
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if (ret == OK)
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{
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ret = _SEM_WAIT(&sem_done);
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}
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/* Destroy the semaphore and return. */
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_SEM_DESTROY(&sem_done);
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return ret;
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}
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