nuttx/graphics/nxbe/nxbe_setpixel.c
Gregory Nutt 92554257b9 Squashed commit of the following:
graphics/nxbe/nxbe_bitmap.c:  Fix another coordinate system problem.

    graphics/:  Review use of device coordinate system with window frambebuffer and make fixes accordingly.

    graphics/nxbe/nxbe_fill.c:  Fix a coordinate system bug.  Was trying to update the window fraembuffer using the device coordinate system.  Need to use the relative coordinate system.

    graphics/:  Use DEBUGASSERT instead of return an error since the is no user to handle the errors within the NX server.  Use CONFIG_DEBUG_GRAPHICS instead of CONFIG_DEBUG_FEATURES in most cases.

    graphics/:  Nothing under graphics/ should set the errno.
2019-03-17 11:34:45 -06:00

154 lines
5.0 KiB
C

/****************************************************************************
* graphics/nxbe/nxbe_setpixel.c
*
* Copyright (C) 2011, 2016, 2019 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <nuttx/nx/nxglib.h>
#include <nuttx/nx/nx.h>
#include "nxbe.h"
/****************************************************************************
* Private Types
****************************************************************************/
struct nxbe_setpixel_s
{
struct nxbe_clipops_s cops;
nxgl_mxpixel_t color;
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxbe_clipfill
*
* Description:
* Called from nxbe_clipper() to performed the fill operation on visible portions
* of the rectangle.
*
****************************************************************************/
static void nxbe_clipfill(FAR struct nxbe_clipops_s *cops,
FAR struct nxbe_plane_s *plane,
FAR const struct nxgl_rect_s *rect)
{
struct nxbe_setpixel_s *fillinfo = (struct nxbe_setpixel_s *)cops;
/* Set the pixel in the graphics device. */
plane->dev.setpixel(&plane->pinfo, &rect->pt1, fillinfo->color);
#ifdef CONFIG_NX_UPDATE
/* Notify external logic that the display has been updated */
nx_notify_rectangle(&plane->pinfo, rect);
#endif
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxbe_setpixel
*
* Description:
* Fill the specified rectangle in the window with the specified color
*
* Input Parameters:
* wnd - The window structure reference
* rect - The location to be filled
* col - The color to use in the fill
*
* Returned Value:
* None
*
****************************************************************************/
void nxbe_setpixel(FAR struct nxbe_window_s *wnd,
FAR const struct nxgl_point_s *pos,
nxgl_mxpixel_t color[CONFIG_NX_NPLANES])
{
struct nxbe_setpixel_s info;
struct nxgl_rect_s rect;
int i;
DEBUGASSERT(wnd != NULL && pos != NULL);
/* Offset the position by the window origin */
nxgl_vectoradd(&rect.pt1, pos, &wnd->bounds.pt1);
/* Make sure that the point is within the limits of the window
* and of the background screen
*/
if (!nxgl_rectinside(&wnd->bounds, &rect.pt1) ||
!nxgl_rectinside(&wnd->be->bkgd.bounds, &rect.pt1))
{
return;
}
/* Then create a bounding box and render the point if there it
* is exposed.
*/
rect.pt2.x = rect.pt1.x;
rect.pt2.y = rect.pt1.y;
#if CONFIG_NX_NPLANES > 1
for (i = 0; i < wnd->be->vinfo.nplanes; i++)
#else
i = 0;
#endif
{
info.cops.visible = nxbe_clipfill;
info.cops.obscured = nxbe_clipnull;
info.color = color[i];
nxbe_clipper(wnd->above, &rect, NX_CLIPORDER_DEFAULT,
&info.cops, &wnd->be->plane[i]);
}
}