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Commit bc0eb7f3 authored by patacongo's avatar patacongo
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Added framebuffer interface 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1298 42af7a65-404d-4744-a932-0658087f49c3
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View file @ bc0eb7f3
......@@ -580,4 +580,4 @@
second argument of the standard listen() API. Hooks are provided to support poll()/select()
waiting for connections, with a subsequent call to accept() to use the backlogged connection.
* Fixed a minor bug in accept(). It should allow the address and addresslen values to be NULL
* Added first-cut definition for a framebuffer interface
Documentation/NuttX.html
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− 1
View file @ bc0eb7f3
......@@ -8,7 +8,7 @@
<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
<p>Last Updated: November 20, 2008</p>
<p>Last Updated: November 23, 2008</p>
</td>
</tr>
</table>
......@@ -1216,6 +1216,7 @@ nuttx-0.3.19 2008-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
second argument of the standard listen() API. Hooks are provided to support poll()/select()
waiting for connections, with a subsequent call to accept() to use the backlogged connection.
* Fixed a minor bug in accept(). It should allow the address and addresslen values to be NULL
* Added first-cut definition for a framebuffer interface
pascal-0.1.3 2008-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
......
arch/sim/src/Makefile
+ 1
− 1
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......@@ -44,7 +44,7 @@ CSRCS = up_initialize.c up_idle.c up_interruptcontext.c \
up_releasestack.c up_unblocktask.c up_blocktask.c \
up_releasepending.c up_reprioritizertr.c \
up_exit.c up_schedulesigaction.c up_allocateheap.c \
up_devconsole.c
up_devconsole.c up_framebuffer.c
HOSTSRCS = up_stdio.c
ifeq ($(CONFIG_FS_FAT),y)
CSRCS += up_blockdevice.c up_deviceimage.c
......
arch/sim/src/up_framebuffer.c 0 → 100644
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/****************************************************************************
* arch/sim/src/up_framebuffer.c
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 <sys/types.h>
#include <string.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/fb.h>
#include "up_internal.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
#ifndef CONFIG_SIM_FBWIDTH
# define CONFIG_SIM_FBWIDTH 480 /* Framebuffer width in pixels */
#endif
#ifndef CONFIG_SIM_FBHEIGHT
# define CONFIG_SIM_FBHEIGHT 240 /* Framebuffer height in pixels */
#endif
#ifndef CONFIG_SIM_FBBPP
# define CONFIG_SIM_FBBPP 16 /* Framebuffer bytes per pixel (RGB) */
#endif
#undef CONFIG_SIM_FBFMT
#if CONFIG_SIM_FBBPP == 1
# define FB_FMT FB_FMT_RGB1
#elif CONFIG_SIM_FBBPP == 4
# define FB_FMT FB_FMT_RGB4
#elif CONFIG_SIM_FBBPP == 8
# define FB_FMT FB_FMT_RGB8
#elif CONFIG_SIM_FBBPP == 16
# define FB_FMT FB_FMT_RGB16
#elif CONFIG_SIM_FBBPP == 24
# define FB_FMT FB_FMT_RGB24
#elif CONFIG_SIM_FBBPP == 32
# define FB_FMT FB_FMT_RGB32
#else
# error "Unsupported BPP"
#endif
/* Framebuffer characteristics in bytes */
#define FB_WIDTH ((CONFIG_SIM_FBWIDTH * CONFIG_SIM_FBBPP + 7) / 8)
#define FB_SIZE (FB_WIDTH * CONFIG_SIM_FBHEIGHT)
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/* Get information about the video controller configuration and the configuration
* of each color plane.
*/
static int up_getvideoinfo(FAR struct fb_vtable_s *vtable, FAR struct fb_videoinfo_s *vinfo);
static int up_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
static int up_getcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
static int up_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
static int up_getcursor(FAR struct fb_vtable_s *vtable, FAR struct fb_cursorattrib_s *attrib);
static int up_setcursor(FAR struct fb_vtable_s *vtable, FAR struct fb_setcursor_s *setttings);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
static ubyte g_fb[FB_SIZE];
/* This structure describes the simulated video controller */
static const struct fb_videoinfo_s g_videoinfo =
{
.fmt = FB_FMT,
.xres = CONFIG_SIM_FBWIDTH,
.yres = CONFIG_SIM_FBHEIGHT,
.nplanes = 1,
};
/* This structure describes the single, simulated color plane */
static const struct fb_planeinfo_s g_planeinfo =
{
.fbmem = (FAR void *)&g_fb,
.fblen = FB_SIZE,
.stride = FB_WIDTH,
.bpp = CONFIG_SIM_FBBPP,
};
/* Simulated RGB mapping */
#if CONFIG_FB_CMAP
static struct fb_cmap_s g_cmap;
#endif
/* Current cursor position */
#ifdef CONFIG_FB_HWCURSOR
static struct fb_cursorpos_s g_cpos;
/* Current cursor size */
#ifdef CONFIG_FB_HWCURSORSIZE
static struct fb_cursorsize_s g_csize;
#endif
#endif
/* The framebuffer object -- There is no private state information in this simple
* framebuffer simulation.
*/
struct fb_vtable_s g_fbobject =
{
.getvideoinfo = up_getvideoinfo,
.getplaneinfo = up_getplaneinfo,
#if CONFIG_FB_CMAP
.getcmap = up_getcmap,
.putcmap = up_putcmap,
#endif
#ifdef CONFIG_FB_HWCURSOR
.getcursor = up_getcursor,
.setcursor = up_setcursor,
#endif
};
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name:
****************************************************************************/
static int up_getvideoinfo(FAR struct fb_vtable_s *vtable,
FAR struct fb_videoinfo_s *vinfo)
{
dbg("vtable=%p vinfo=%p\n", vtable, vinfo);
if (vtable && vinfo)
{
memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s));
return OK;
}
dbg("Returning EINVAL\n");
return -EINVAL;
}
/****************************************************************************
* Name: up_getplaneinfo
****************************************************************************/
static int up_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno,
FAR struct fb_planeinfo_s *pinfo)
{
dbg("vtable=%p planeno=%d pinfo=%p\n", vtable, planeno, pinfo);
if (vtable && planeno == 0 && pinfo)
{
memcpy(pinfo, &g_planeinfo, sizeof(struct fb_planeinfo_s));
return OK;
}
dbg("Returning EINVAL\n");
return -EINVAL;
}
/****************************************************************************
* Name: up_getcmap
****************************************************************************/
#if CONFIG_FB_CMAP
static int up_getcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap)
{
int i;
dbg("vtable=%p cmap=%p cmap->len\n", vtable, cmap, cmap->len);
if (vtable && cmap)
{
cmap->len = 256;
for (i = 0; i < 256, i++)
{
cmap->red[i] = i;
cmap->green[i] = i;
cmap->blue[i] = i;
#ifdef CONFIG_FB_TRANSPARENCY
cmap->transp[i] = i;
#endif
}
return OK;
}
dbg("Returning EINVAL\n");
return -EINVAL;
}
#endif
/****************************************************************************
* Name: up_putcmap
****************************************************************************/
#if CONFIG_FB_CMAP
static int up_putcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap)
{
dbg("vtable=%p cmap=%p cmap->len\n", vtable, cmap, cmap->len);
if (vtable && cmap)
{
return OK;
}
dbg("Returning EINVAL\n");
return -EINVAL;
}
#endif
/****************************************************************************
* Name: up_getcursor
****************************************************************************/
#ifdef CONFIG_FB_HWCURSOR
static int up_getcursor(FAR struct fb_vtable_s *vtable,
FAR struct fb_cursorattrib_s *attrib)
{
dbg("vtable=%p attrib=%p\n", vtable, attrib);
if (vtable && attrib)
{
#ifdef CONFIG_FB_HWCURSORIMAGE
attrib->fmt = FB_FMT;
#endif
dbg("pos: (x=%d, y=%d)\n", g_cpos.x, g_cpos.y);
attrib->pos = g_cpos;
#ifdef CONFIG_FB_HWCURSORSIZE
attrib->mxsize.h = CONFIG_SIM_FBHEIGHT;
attrib->mxsize.w = CONFIG_SIM_FBWIDTH;
dbg("size: (h=%d, w=%d)\n", g_csize.h, g_csize.w);
attrib->size = g_csize;
#endif
return OK;
}
dbg("Returning EINVAL\n");
return -EINVAL;
}
#endif
/****************************************************************************
* Name:
****************************************************************************/
#ifdef CONFIG_FB_HWCURSOR
static int up_setcursor(FAR struct fb_vtable_s *vtable,
FAR struct fb_setcursor_s *setttings)
{
dbg("vtable=%p setttings=%p\n", vtable, setttings);
if (vtable && setttings)
{
dbg("flags: %02x\n", settings->flags);
if ((flags & FB_CUR_SETPOSITION) != 0)
{
g_cpos = settings->pos;
dbg("pos: (h:%d, w:%d)\n", g_cpos.x, g_cpos.y);
}
#ifdef CONFIG_FB_HWCURSORSIZE
if ((flags & FB_CUR_SETSIZE) != 0)
{
g_csize = settings->size;
dbg("size: (h:%d, w:%d)\n", g_csize.h, g_csize.w);
}
#endif
#ifdef CONFIG_FB_HWCURSORIMAGE
if ((flags & FB_CUR_SETIMAGE) != 0)
{
dbg("image: (h:%d, w:%d) @ %p\n",
settings->img.height, settings->img.width, settings->img.image);
}
#endif
return OK;
}
dbg("Returning EINVAL\n");
return -EINVAL;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_getfbobject
*
* Description:
* Get a reference to the framebuffer object
*
* Input parameters:
* None
*
* Returned value:
* Reference to the framebuffer object (NULL on failure)
*
****************************************************************************/
FAR const struct fb_vtable_s *up_getfbobject(void)
{
return &g_fbobject;
}
include/nuttx/fb.h 0 → 100644
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/****************************************************************************
* include/nuttx/fb.h
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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.
*
****************************************************************************/
#ifndef _INCLUDE_NUTTX_FB_H
#define _INCLUDE_NUTTX_FB_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
/****************************************************************************
* Pre-processor definitions
****************************************************************************/
/* Color format definitions. The pretty much define the color pixel processing
* organization of the video controller.
*/
/* Monochrome Formats *******************************************************/
#define FB_FMT_Y8 0 /* BPP=8 8-bit uncompressed greyscale */
#define FB_FMT_Y16 1 /* BPP=16 16-bit uncompressed greyscale */
#define FB_FMT_GREY FB_FMT_Y8 /* BPP=8 */
#define FB_FMT_Y800 FB_FMT_Y8 /* BPP=8 */
#define FB_ISMONO(f) ((f) >= FB_FMT_Y8) && (f) <= FB_FMT_Y16)
/* RGB video formats ********************************************************/
/* Standard RGB */
#define FB_FMT_RGB1 2 /* BPP=1 */
#define FB_FMT_RGB4 3 /* BPP=4 */
#define FB_FMT_RGB8 4 /* BPP=8 */
#define FB_FMT_RGB16 5 /* BPP=16 */
#define FB_FMT_RGB24 6 /* BPP=24 */
#define FB_FMT_RGB32 7 /* BPP=32 */
/* Run length encoded RGB */
#define FB_FMT_RGBRLE4 8 /* BPP=4 */
#define FB_FMT_RGBRLE8 9 /* BPP=8 */
/* Raw RGB */
#define FB_FMT_RGBRAW 10 /* BPP=? */
/* Raw RGB with arbitrary sample packing within a pixel. Packing and precision
* ov R, G and B components is determined by bit masks for each.
*/
#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 */
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