Added framebuffer interface
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1298 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
55bdcc37ab
commit
bc0eb7f31e
@ -580,4 +580,4 @@
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second argument of the standard listen() API. Hooks are provided to support poll()/select()
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waiting for connections, with a subsequent call to accept() to use the backlogged connection.
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* Fixed a minor bug in accept(). It should allow the address and addresslen values to be NULL
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* Added first-cut definition for a framebuffer interface
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@ -8,7 +8,7 @@
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<tr align="center" bgcolor="#e4e4e4">
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<td>
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<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
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<p>Last Updated: November 20, 2008</p>
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<p>Last Updated: November 23, 2008</p>
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</td>
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</tr>
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</table>
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@ -1216,6 +1216,7 @@ nuttx-0.3.19 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
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second argument of the standard listen() API. Hooks are provided to support poll()/select()
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waiting for connections, with a subsequent call to accept() to use the backlogged connection.
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* Fixed a minor bug in accept(). It should allow the address and addresslen values to be NULL
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* Added first-cut definition for a framebuffer interface
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pascal-0.1.3 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
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@ -44,7 +44,7 @@ CSRCS = up_initialize.c up_idle.c up_interruptcontext.c \
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up_releasestack.c up_unblocktask.c up_blocktask.c \
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up_releasepending.c up_reprioritizertr.c \
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up_exit.c up_schedulesigaction.c up_allocateheap.c \
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up_devconsole.c
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up_devconsole.c up_framebuffer.c
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HOSTSRCS = up_stdio.c
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ifeq ($(CONFIG_FS_FAT),y)
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CSRCS += up_blockdevice.c up_deviceimage.c
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354
arch/sim/src/up_framebuffer.c
Normal file
354
arch/sim/src/up_framebuffer.c
Normal file
@ -0,0 +1,354 @@
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/****************************************************************************
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* arch/sim/src/up_framebuffer.c
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*
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* Copyright (C) 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <sys/types.h>
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#include <string.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/fb.h>
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#include "up_internal.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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#ifndef CONFIG_SIM_FBWIDTH
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# define CONFIG_SIM_FBWIDTH 480 /* Framebuffer width in pixels */
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#endif
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#ifndef CONFIG_SIM_FBHEIGHT
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# define CONFIG_SIM_FBHEIGHT 240 /* Framebuffer height in pixels */
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#endif
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#ifndef CONFIG_SIM_FBBPP
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# define CONFIG_SIM_FBBPP 16 /* Framebuffer bytes per pixel (RGB) */
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#endif
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#undef CONFIG_SIM_FBFMT
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#if CONFIG_SIM_FBBPP == 1
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# define FB_FMT FB_FMT_RGB1
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#elif CONFIG_SIM_FBBPP == 4
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# define FB_FMT FB_FMT_RGB4
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#elif CONFIG_SIM_FBBPP == 8
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# define FB_FMT FB_FMT_RGB8
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#elif CONFIG_SIM_FBBPP == 16
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# define FB_FMT FB_FMT_RGB16
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#elif CONFIG_SIM_FBBPP == 24
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# define FB_FMT FB_FMT_RGB24
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#elif CONFIG_SIM_FBBPP == 32
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# define FB_FMT FB_FMT_RGB32
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#else
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# error "Unsupported BPP"
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#endif
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/* Framebuffer characteristics in bytes */
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#define FB_WIDTH ((CONFIG_SIM_FBWIDTH * CONFIG_SIM_FBBPP + 7) / 8)
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#define FB_SIZE (FB_WIDTH * CONFIG_SIM_FBHEIGHT)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Get information about the video controller configuration and the configuration
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* of each color plane.
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*/
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static int up_getvideoinfo(FAR struct fb_vtable_s *vtable, FAR struct fb_videoinfo_s *vinfo);
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static int up_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno, FAR struct fb_planeinfo_s *pinfo);
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/* The following is provided only if the video hardware supports RGB color mapping */
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#if CONFIG_FB_CMAP
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static int up_getcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
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static int up_putcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
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#endif
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/* The following is provided only if the video hardware supports a hardware cursor */
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#ifdef CONFIG_FB_HWCURSOR
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static int up_getcursor(FAR struct fb_vtable_s *vtable, FAR struct fb_cursorattrib_s *attrib);
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static int up_setcursor(FAR struct fb_vtable_s *vtable, FAR struct fb_setcursor_s *setttings);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static ubyte g_fb[FB_SIZE];
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/* This structure describes the simulated video controller */
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static const struct fb_videoinfo_s g_videoinfo =
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{
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.fmt = FB_FMT,
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.xres = CONFIG_SIM_FBWIDTH,
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.yres = CONFIG_SIM_FBHEIGHT,
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.nplanes = 1,
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};
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/* This structure describes the single, simulated color plane */
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static const struct fb_planeinfo_s g_planeinfo =
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{
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.fbmem = (FAR void *)&g_fb,
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.fblen = FB_SIZE,
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.stride = FB_WIDTH,
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.bpp = CONFIG_SIM_FBBPP,
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};
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/* Simulated RGB mapping */
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#if CONFIG_FB_CMAP
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static struct fb_cmap_s g_cmap;
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#endif
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/* Current cursor position */
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#ifdef CONFIG_FB_HWCURSOR
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static struct fb_cursorpos_s g_cpos;
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/* Current cursor size */
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#ifdef CONFIG_FB_HWCURSORSIZE
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static struct fb_cursorsize_s g_csize;
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#endif
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#endif
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/* The framebuffer object -- There is no private state information in this simple
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* framebuffer simulation.
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*/
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struct fb_vtable_s g_fbobject =
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{
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.getvideoinfo = up_getvideoinfo,
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.getplaneinfo = up_getplaneinfo,
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#if CONFIG_FB_CMAP
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.getcmap = up_getcmap,
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.putcmap = up_putcmap,
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#endif
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#ifdef CONFIG_FB_HWCURSOR
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.getcursor = up_getcursor,
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.setcursor = up_setcursor,
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#endif
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name:
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****************************************************************************/
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static int up_getvideoinfo(FAR struct fb_vtable_s *vtable,
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FAR struct fb_videoinfo_s *vinfo)
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{
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dbg("vtable=%p vinfo=%p\n", vtable, vinfo);
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if (vtable && vinfo)
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{
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memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s));
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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/****************************************************************************
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* Name: up_getplaneinfo
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****************************************************************************/
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static int up_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno,
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FAR struct fb_planeinfo_s *pinfo)
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{
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dbg("vtable=%p planeno=%d pinfo=%p\n", vtable, planeno, pinfo);
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if (vtable && planeno == 0 && pinfo)
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{
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memcpy(pinfo, &g_planeinfo, sizeof(struct fb_planeinfo_s));
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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/****************************************************************************
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* Name: up_getcmap
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****************************************************************************/
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#if CONFIG_FB_CMAP
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static int up_getcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap)
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{
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int i;
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dbg("vtable=%p cmap=%p cmap->len\n", vtable, cmap, cmap->len);
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if (vtable && cmap)
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{
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cmap->len = 256;
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for (i = 0; i < 256, i++)
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{
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cmap->red[i] = i;
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cmap->green[i] = i;
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cmap->blue[i] = i;
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#ifdef CONFIG_FB_TRANSPARENCY
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cmap->transp[i] = i;
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#endif
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}
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Name: up_putcmap
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****************************************************************************/
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#if CONFIG_FB_CMAP
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static int up_putcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap)
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{
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dbg("vtable=%p cmap=%p cmap->len\n", vtable, cmap, cmap->len);
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if (vtable && cmap)
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{
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Name: up_getcursor
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****************************************************************************/
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#ifdef CONFIG_FB_HWCURSOR
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static int up_getcursor(FAR struct fb_vtable_s *vtable,
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FAR struct fb_cursorattrib_s *attrib)
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{
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dbg("vtable=%p attrib=%p\n", vtable, attrib);
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if (vtable && attrib)
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{
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#ifdef CONFIG_FB_HWCURSORIMAGE
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attrib->fmt = FB_FMT;
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#endif
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dbg("pos: (x=%d, y=%d)\n", g_cpos.x, g_cpos.y);
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attrib->pos = g_cpos;
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#ifdef CONFIG_FB_HWCURSORSIZE
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attrib->mxsize.h = CONFIG_SIM_FBHEIGHT;
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attrib->mxsize.w = CONFIG_SIM_FBWIDTH;
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dbg("size: (h=%d, w=%d)\n", g_csize.h, g_csize.w);
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attrib->size = g_csize;
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#endif
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Name:
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****************************************************************************/
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#ifdef CONFIG_FB_HWCURSOR
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static int up_setcursor(FAR struct fb_vtable_s *vtable,
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FAR struct fb_setcursor_s *setttings)
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{
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dbg("vtable=%p setttings=%p\n", vtable, setttings);
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if (vtable && setttings)
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{
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dbg("flags: %02x\n", settings->flags);
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if ((flags & FB_CUR_SETPOSITION) != 0)
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{
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g_cpos = settings->pos;
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dbg("pos: (h:%d, w:%d)\n", g_cpos.x, g_cpos.y);
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}
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#ifdef CONFIG_FB_HWCURSORSIZE
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if ((flags & FB_CUR_SETSIZE) != 0)
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{
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g_csize = settings->size;
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dbg("size: (h:%d, w:%d)\n", g_csize.h, g_csize.w);
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}
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#endif
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#ifdef CONFIG_FB_HWCURSORIMAGE
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if ((flags & FB_CUR_SETIMAGE) != 0)
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{
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dbg("image: (h:%d, w:%d) @ %p\n",
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settings->img.height, settings->img.width, settings->img.image);
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}
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#endif
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_getfbobject
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*
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* Description:
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* Get a reference to the framebuffer object
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*
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* Input parameters:
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* None
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*
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* Returned value:
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* Reference to the framebuffer object (NULL on failure)
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*
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****************************************************************************/
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FAR const struct fb_vtable_s *up_getfbobject(void)
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{
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return &g_fbobject;
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}
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309
include/nuttx/fb.h
Normal file
309
include/nuttx/fb.h
Normal file
@ -0,0 +1,309 @@
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/****************************************************************************
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* include/nuttx/fb.h
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*
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* Copyright (C) 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* 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.
|
||||
*
|
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****************************************************************************/
|
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#ifndef _INCLUDE_NUTTX_FB_H
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#define _INCLUDE_NUTTX_FB_H
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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 <sys/types.h>
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/****************************************************************************
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* Pre-processor definitions
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****************************************************************************/
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/* Color format definitions. The pretty much define the color pixel processing
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* organization of the video controller.
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*/
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/* Monochrome Formats *******************************************************/
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#define FB_FMT_Y8 0 /* BPP=8 8-bit uncompressed greyscale */
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#define FB_FMT_Y16 1 /* BPP=16 16-bit uncompressed greyscale */
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#define FB_FMT_GREY FB_FMT_Y8 /* BPP=8 */
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#define FB_FMT_Y800 FB_FMT_Y8 /* BPP=8 */
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#define FB_ISMONO(f) ((f) >= FB_FMT_Y8) && (f) <= FB_FMT_Y16)
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/* RGB video formats ********************************************************/
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/* Standard RGB */
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#define FB_FMT_RGB1 2 /* BPP=1 */
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#define FB_FMT_RGB4 3 /* BPP=4 */
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#define FB_FMT_RGB8 4 /* BPP=8 */
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#define FB_FMT_RGB16 5 /* BPP=16 */
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#define FB_FMT_RGB24 6 /* BPP=24 */
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#define FB_FMT_RGB32 7 /* BPP=32 */
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/* Run length encoded RGB */
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#define FB_FMT_RGBRLE4 8 /* BPP=4 */
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#define FB_FMT_RGBRLE8 9 /* BPP=8 */
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/* Raw RGB */
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#define FB_FMT_RGBRAW 10 /* BPP=? */
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/* Raw RGB with arbitrary sample packing within a pixel. Packing and precision
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* ov R, G and B components is determined by bit masks for each.
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*/
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#define FB_FMT_RGBBTFLD16 11 /* BPP=16 */
|
||||
#define FB_FMT_RGBBTFLD24 12 /* BPP=24 */
|
||||
#define FB_FMT_RGBBTFLD24 13 /* BPP=32 */
|
||||
#define FB_FMT_RGBA16 14 /* BPP=16 Raw RGB with alpha */
|
||||
#define FB_FMT_RGBA32 15 /* BPP=32 Raw RGB with alpha */
|
||||
|
||||
/* Raw RGB with a transparency field. Layout is as for stanadard RGB at 16 and
|
||||
* 32 bits per pixel but the msb in each pixel indicates whether the pixel is
|
||||
* transparent or not.
|
||||
*/
|
||||
|
||||
#define FB_FMT_RGBT16 16 /* BPP=16 */
|
||||
#define FB_FMT_RGBT32 17 /* BPP=32 */
|
||||
|
||||
#define FB_ISRGB(f) ((f) >= FB_FMT_RGB1) && (f) <= FB_FMT_RGBT32)
|
||||
|
||||
/* Packed YUV Formats *******************************************************/
|
||||
|
||||
#define FB_FMT_AYUV 18 /* BPP=32 Combined YUV and alpha */
|
||||
#define FB_FMT_CLJR 19 /* BPP=8 4 pixels packed into a uint32.
|
||||
* YUV 4:1:1 with l< 8 bits per YUV sample */
|
||||
#define FB_FMT_CYUV 20 /* BPP=16 UYVY except that height is reversed */
|
||||
#define FB_FMT_IRAW 21 /* BPP=? Intel uncompressed YUV.
|
||||
#define FB_FMT_IUYV 22 /* BPP=16 Interlaced UYVY (line order
|
||||
* 0,2,4,.., 1,3,5...)
|
||||
#define FB_FMT_IY41 23 /* BPP=12 Interlaced Y41P (line order
|
||||
* 0,2,4,.., 1,3,5...)
|
||||
#define FB_FMT_IYU2 24 /* BPP=24 */
|
||||
#define FB_FMT_HDYC 25 /* BPP=16 UYVY except uses the BT709 color space */
|
||||
#define FB_FMT_UYVP 26 /* BPP=24? YCbCr 4:2:2, 10-bits per component in U0Y0V0Y1 order */
|
||||
#define FB_FMT_UYVY 27 /* BPP=16 YUV 4:2:2 */
|
||||
#define FB_FMT_UYNV FB_FMT_UYVY /* BPP=16 */
|
||||
#define FB_FMT_Y422 FB_FMT_UYVY /* BPP=16 */
|
||||
#define FB_FMT_V210 28 /* BPP=32 10-bit 4:2:2 YCrCb */
|
||||
#define FB_FMT_V422 29 /* BPP=16 Upside down version of UYVY.
|
||||
#define FB_FMT_V655 30 /* BPP=16? 16-bit YUV 4:2:2 */
|
||||
#define FB_FMT_VYUY 31 /* BPP=? ATI Packed YUV Data
|
||||
#define FB_FMT_YUYV 32 /* BPP=16 YUV 4:2:2 */
|
||||
#define FB_FMT_YUY2 FB_FMT_YUYV /* BPP=16 YUV 4:2:2 */
|
||||
#define FB_FMT_YUNV FB_FMT_YUYV /* BPP=16 YUV 4:2:2 */
|
||||
#define FB_FMT_YVYU 33 /* BPP=16 YUV 4:2:2 */
|
||||
#define FB_FMT_Y41P 34 /* BPP=12 YUV 4:1:1 */
|
||||
#define FB_FMT_Y411 35 /* BPP=12 YUV 4:1:1 */
|
||||
#define FB_FMT_Y211 36 /* BPP=8 */
|
||||
#define FB_FMT_Y41T 37 /* BPP=12 Y41P LSB for transparency */
|
||||
#define FB_FMT_Y42T 38 /* BPP=16 UYVY LSB for transparency */
|
||||
#define FB_FMT_YUVP 39 /* BPP=24? YCbCr 4:2:2 Y0U0Y1V0 order */
|
||||
|
||||
#define FB_ISYUVPACKED(f) ((f) >= FB_FMT_AYUV) && (f) <= FB_FMT_YUVP)
|
||||
|
||||
/* Packed Planar YUV Formats ************************************************/
|
||||
|
||||
#define FB_FMT_YVU9 40 /* BPP=9 8-bit Y followed by 8-bit 4x4 VU */
|
||||
#define FB_FMT_YUV9 41 /* BPP=9? */
|
||||
#define FB_FMT_IF09 42 /* BPP=9.5 YVU9 + 4x4 plane of delta relative to tframe. */
|
||||
#define FB_FMT_YV16 43 /* BPP=16 8-bit Y followed by 8-bit 2x1 VU */
|
||||
#define FB_FMT_YV12 44 /* BPP=12 8-bit Y followed by 8-bit 2x2 VU */
|
||||
#define FB_FMT_I420 45 /* BPP=12 8-bit Y followed by 8-bit 2x2 UV */
|
||||
#define FB_FMT_IYUV FB_FMT_I420 /* BPP=12 */
|
||||
#define FB_FMT_NV12 46 /* BPP=12 8-bit Y followed by an interleaved 2x2 UV */
|
||||
#define FB_FMT_NV21 47 /* BPP=12 NV12 with UV reversed */
|
||||
#define FB_FMT_IMC1 48 /* BPP=12 YV12 except UV planes ame stride as Y */
|
||||
#define FB_FMT_IMC2 49 /* BPP=12 IMC1 except UV lines interleaved at half stride boundaries */
|
||||
#define FB_FMT_IMC3 50 /* BPP=12 As IMC1 except that UV swapped */
|
||||
#define FB_FMT_IMC4 51 /* BPP=12 As IMC2 except that UV swapped */
|
||||
#define FB_FMT_CLPL 52 /* BPP=12 YV12 but including a level of indirection. */
|
||||
#define FB_FMT_Y41B 53 /* BPP=12? 4:1:1 planar. */
|
||||
#define FB_FMT_Y42B 54 /* BPP=16? YUV 4:2:2 planar. */
|
||||
#define FB_FMT_CXY1 55 /* BPP=12 */
|
||||
#define FB_FMT_CXY2 56 /* BPP=16 */
|
||||
|
||||
#define FB_ISYUVPLANAR(f) ((f) >= FB_FMT_AYUV) && (f) <= FB_FMT_YUVP)
|
||||
#define FB_ISYUV(f) (FB_ISYUVPACKED(f) || FB_ISYUVPLANAR(f))
|
||||
|
||||
/* Hardware cursor control **************************************************/
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#define FB_CUR_ENABLE 0x01 /* Enable the cursor
|
||||
#define FB_CUR_SETIMAGE 0x02 /* Set the cursor image */
|
||||
#define FB_CUR_SETPOSITION 0x04 /* Set the position of the cursor */
|
||||
#define FB_CUR_SETSIZE 0x08 /* Set the size of the cursor */
|
||||
#define FB_CUR_XOR 0x10 /* Use XOR vs COPY ROP on image */
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/* If any dimension of the display exceeds 65,536 pixels, then the following
|
||||
* type will need to change:
|
||||
*/
|
||||
|
||||
typedef uint16 fb_coord_t;
|
||||
|
||||
/* This structure describes the overall video controller */
|
||||
|
||||
struct fb_videoinfo_s
|
||||
{
|
||||
ubyte fmt; /* see FB_FMT_* */
|
||||
fb_coord_t xres; /* Resolution in pixels */
|
||||
fb_coord_t yres;
|
||||
ubyte nplanes; /* Number of color planes supported */
|
||||
};
|
||||
|
||||
/* This structure describes one color plane. Some YUV formats may support
|
||||
* up to 4 planes
|
||||
*/
|
||||
|
||||
struct fb_planeinfo_s
|
||||
{
|
||||
FAR void *fbmem; /* Start of frame buffer memory */
|
||||
uint32 fblen; /* Length of frame buffer memory in bytes */
|
||||
fb_coord_t stride; /* Length of a line in bytes */
|
||||
ubyte bpp; /* Bits per pixel */
|
||||
};
|
||||
|
||||
/* On video controllers that support mapping of a pixel palette value
|
||||
* to an RGB encoding, the following structure may be used to define
|
||||
* that mapping.
|
||||
*/
|
||||
|
||||
#if CONFIG_FB_CMAP
|
||||
struct fb_cmap_s
|
||||
{
|
||||
uint16 len; /* Number of color entries */
|
||||
uint16 *red; /* Table of red values */
|
||||
uint16 *green; /* Table of red values */
|
||||
uint16 *blue; /* Table of red values */
|
||||
#ifdef CONFIG_FB_TRANSPARENCY
|
||||
uint16 *transp; /* Table of transparency */
|
||||
#endif
|
||||
};
|
||||
#endif
|
||||
|
||||
/* If the video controller hardware supports a hardware cursor and
|
||||
* that hardware cursor supports user-provided images, then the
|
||||
* following structure may be used to provide the cursor image
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_FB_HWCURSORIMAGE
|
||||
struct fb_cursorimage_s
|
||||
{
|
||||
fb_coord_t width; /* Width of the cursor image in pixels */
|
||||
fb_coord_t height /* Height of the curor image in pixels */
|
||||
const ubyte *image; /* Pointer to image data */
|
||||
};
|
||||
#endif
|
||||
|
||||
/* The following structure defines the cursor position/size */
|
||||
|
||||
struct fb_cursorpos_s
|
||||
{
|
||||
fb_coord_t x; /* X position in pixels */
|
||||
fb_coord_t y; /* Y position in rows */
|
||||
};
|
||||
|
||||
/* If the hardware supports setting the cursor size, then this structure
|
||||
* is used to provide the size.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSORSIZE
|
||||
struct fb_cursorsize_s
|
||||
{
|
||||
fb_coord_t h; /* Height in rows */
|
||||
fb_coord_t w; /* Width in pixels */
|
||||
};
|
||||
#endif
|
||||
|
||||
/* The following is used to get the cursor attributes */
|
||||
|
||||
struct fb_cursorattrib_s
|
||||
{
|
||||
#ifdef CONFIG_FB_HWCURSORIMAGE
|
||||
ubyte fmt; /* Video format of cursor */
|
||||
#endif
|
||||
struct fb_cursorpos_s pos; /* Current cursor position */
|
||||
#ifdef CONFIG_FB_HWCURSORSIZE
|
||||
struct fb_cursorsize_s mxsize; /* Maximum cursor size */
|
||||
struct fb_cursorsize_s size; /* Current size */
|
||||
#endif
|
||||
};
|
||||
|
||||
struct fb_setcursor_s
|
||||
{
|
||||
ubyte flags; /* See FB_CUR_* definitions */
|
||||
struct fb_cursorpos_s pos; /* Cursor position */
|
||||
#ifdef CONFIG_FB_HWCURSORSIZE
|
||||
struct fb_cursorsize_s size; /* Cursor size */
|
||||
#endif
|
||||
#ifdef CONFIG_FB_HWCURSORIMAGE
|
||||
struct fb_cursorimage_s img; /* Cursor image */
|
||||
#endif
|
||||
};
|
||||
#endif
|
||||
|
||||
/* The framebuffer "driver" under NuttX is not a driver at all, but simply
|
||||
* a driver "object" that is accessed through the following vtable:
|
||||
*/
|
||||
|
||||
struct fb_vtable_s
|
||||
{
|
||||
/* Get information about the video controller configuration and the configuration
|
||||
* of each color plane.
|
||||
*/
|
||||
|
||||
int (*getvideoinfo)(FAR struct fb_vtable_s *vtable, FAR struct fb_videoinfo_s *vinfo);
|
||||
int (*getplaneinfo)(FAR struct fb_vtable_s *vtable, int planeno, FAR struct fb_planeinfo_s *pinfo);
|
||||
|
||||
/* The following is provided only if the video hardware supports RGB color mapping */
|
||||
|
||||
#if CONFIG_FB_CMAP
|
||||
int (*getcmap)(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
|
||||
int (*putcmap)(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
|
||||
#endif
|
||||
/* The following is provided only if the video hardware supports a hardware cursor */
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
int (*getcursor)(FAR struct fb_vtable_s *vtable, FAR struct fb_cursorattrib_s *attrib);
|
||||
int (*setcursor)(FAR struct fb_vtable_s *vtable, FAR struct fb_setcursor_s *setttings);
|
||||
#endif
|
||||
};
|
||||
#endif /* _INCLUDE_NUTTX_FB_H */
|
||||
Loading…
x
Reference in New Issue
Block a user