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nuttx/graphics/nxbe/nxbe_configure.c
patacongo dbf37c6315 Add logic to read from graphics memory 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4057 42af7a65-404d-4744-a932-0658087f49c3
2011-10-22 18:13:04 +00:00

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/****************************************************************************
* graphics/nxbe/nxbe_configure.c
*
* Copyright (C) 2008-2010 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 <stddef.h>
#include <errno.h>
#include <debug.h>
#include "nxbe.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxbe_configure
*
* Description:
* Configure the back end state structure based on information from the
* framebuffer driver
*
****************************************************************************/
int nxbe_configure(FAR NX_DRIVERTYPE *dev, FAR struct nxbe_state_s *be)
{
int ret;
int i;
/* Get the video controller configuration */
ret = dev->getvideoinfo(dev, &be->vinfo);
if (ret < 0)
{
gdbg("Failed to get vinfo\n");
return ret;
}
/* Check the number of color planes */
#ifdef CONFIG_DEBUG
if (be->vinfo.nplanes > CONFIG_NX_NPLANES)
{
gdbg("NX configured for only %d planes, controller wants %d\n",
CONFIG_NX_NPLANES, be->vinfo.nplanes);
return -E2BIG;
}
else if (be->vinfo.nplanes < CONFIG_NX_NPLANES)
{
gdbg("NX configured for %d planes, controller only needs %d\n",
CONFIG_NX_NPLANES, be->vinfo.nplanes);
}
#endif
/* Then get information about each color plane */
for (i = 0; i < be->vinfo.nplanes; i++)
{
ret = dev->getplaneinfo(dev, i, &be->plane[i].pinfo);
if (ret < 0)
{
gdbg("Failed to get pinfo[%d]\n", i);
return ret;
}
/* Select rasterizers to match the BPP reported for this plane.
* NOTE that there are configuration options to eliminate support
* for unused BPP values. If the unused BPP values are not suppressed
* in this way, then ALL rasterizers will be drawn into the link and
* will signicantly increase the size
*/
#ifndef CONFIG_NX_DISABLE_1BPP
if (be->plane[i].pinfo.bpp == 1)
{
be->plane[i].setpixel = nxgl_setpixel_1bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_1bpp;
be->plane[i].getrectangle = nxgl_getrectangle_1bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_1bpp;
be->plane[i].moverectangle = nxgl_moverectangle_1bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_1bpp;
}
else
#endif
#ifndef CONFIG_NX_DISABLE_2BPP
if (be->plane[i].pinfo.bpp == 2)
{
be->plane[i].setpixel = nxgl_setpixel_2bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_2bpp;
be->plane[i].getrectangle = nxgl_getrectangle_2bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_2bpp;
be->plane[i].moverectangle = nxgl_moverectangle_2bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_2bpp;
}
else
#endif
#ifndef CONFIG_NX_DISABLE_4BPP
if (be->plane[i].pinfo.bpp == 4)
{
be->plane[i].setpixel = nxgl_setpixel_4bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_4bpp;
be->plane[i].getrectangle = nxgl_getrectangle_4bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_4bpp;
be->plane[i].moverectangle = nxgl_moverectangle_4bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_4bpp;
}
else
#endif
#ifndef CONFIG_NX_DISABLE_8BPP
if (be->plane[i].pinfo.bpp == 8)
{
be->plane[i].setpixel = nxgl_setpixel_8bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_8bpp;
be->plane[i].getrectangle = nxgl_getrectangle_8bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_8bpp;
be->plane[i].moverectangle = nxgl_moverectangle_8bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_8bpp;
}
else
#endif
#ifndef CONFIG_NX_DISABLE_16BPP
if (be->plane[i].pinfo.bpp == 16)
{
be->plane[i].setpixel = nxgl_setpixel_16bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_16bpp;
be->plane[i].getrectangle = nxgl_getrectangle_16bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_16bpp;
be->plane[i].moverectangle = nxgl_moverectangle_16bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_16bpp;
}
else
#endif
#ifndef CONFIG_NX_DISABLE_24BPP
if (be->plane[i].pinfo.bpp == 24)
{
be->plane[i].setpixel = nxgl_setpixel_24bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_24bpp;
be->plane[i].getrectangle = nxgl_getrectangle_24bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_24bpp;
be->plane[i].moverectangle = nxgl_moverectangle_24bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_24bpp;
}
else
#endif
#ifndef CONFIG_NX_DISABLE_32BPP
if (be->plane[i].pinfo.bpp == 32)
{
be->plane[i].setpixel = nxgl_setpixel_32bpp;
be->plane[i].fillrectangle = nxgl_fillrectangle_32bpp;
be->plane[i].getrectangle = nxgl_getrectangle_32bpp;
be->plane[i].filltrapezoid = nxgl_filltrapezoid_32bpp;
be->plane[i].moverectangle = nxgl_moverectangle_32bpp;
be->plane[i].copyrectangle = nxgl_copyrectangle_32bpp;
}
else
#endif
{
gdbg("Unsupported pinfo[%d] BPP: %d\n", i, be->plane[i].pinfo.bpp);
return -ENOSYS;
}
}
return OK;
}
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