448 lines
13 KiB
C
448 lines
13 KiB
C
/******************************************************************************
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* fbtest - fbtest.c
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* test program for the tuxbox-framebuffer device
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* tests all GTX/eNX supported modes
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*
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* (c) 2003 Carsten Juttner (carjay@gmx.net)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* The Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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******************************************************************************
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* $Id: fbtest.c,v 1.5 2005/01/14 23:14:41 carjay Exp $
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******************************************************************************/
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// TODO: - should restore the colour map and mode to what it was before
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// - is colour map handled correctly?
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <linux/fb.h>
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#include <error.h>
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#define FBDEV "/dev/fb0"
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struct vidsize{
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int width;
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int height;
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};
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static
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const struct vidsize vidsizetable[]={ // all supported sizes
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{720,576},{720,480},{720,288},{720,240},
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{640,576},{640,480},{640,288},{640,240},
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{360,576},{360,480},{360,288},{360,240},
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{320,576},{320,480},{320,288},{320,240}
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};
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#define VIDSIZENUM (sizeof(vidsizetable)/sizeof(struct vidsize))
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enum pixenum{ // keep in sync with pixname !
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CLUT4=0,
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CLUT8,
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RGB565,
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ARGB1555,
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ARGB
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};
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const char *pixname[] = {
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"CLUT4",
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"CLUT8",
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"RGB565",
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"ARGB1555",
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"ARGB"
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};
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struct pixelformat{
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char *name;
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struct fb_bitfield red;
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struct fb_bitfield green;
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struct fb_bitfield blue;
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struct fb_bitfield transp;
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char bpp;
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char pixenum;
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};
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static // so far these are all modes supported by the eNX (only partially by GTX)
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const struct pixelformat pixelformattable[] = {
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{ .name = "CLUT4 ARGB8888", // CLUT4 (ARGB8888)
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.bpp = 4, .pixenum = CLUT4,
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.red = { .offset = 0, .length=8, .msb_right =0 },
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.green = { .offset = 0, .length=8, .msb_right =0 },
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.blue = { .offset = 0, .length=8, .msb_right =0 },
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.transp= { .offset = 0, .length=8, .msb_right =0 }
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},
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{ .name = "CLUT4 ARGB1555", // CLUT4 (ARGB1555)
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.bpp = 4, .pixenum = CLUT4,
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.red = { .offset = 0, .length=5, .msb_right =0 },
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.green = { .offset = 0, .length=5, .msb_right =0 },
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.blue = { .offset = 0, .length=5, .msb_right =0 },
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.transp= { .offset = 0, .length=1, .msb_right =0 }
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},
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{ .name = "CLUT8 ARGB8888", // CLUT8 (ARGB8888)
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.bpp = 8, .pixenum = CLUT8,
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.red = { .offset = 0, .length=8, .msb_right =0 },
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.green = { .offset = 0, .length=8, .msb_right =0 },
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.blue = { .offset = 0, .length=8, .msb_right =0 },
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.transp= { .offset = 0, .length=8, .msb_right =0 }
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},
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{ .name = "CLUT8 ARGB1555", // CLUT8 (ARGB1555)
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.bpp = 8, .pixenum = CLUT8,
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.red = { .offset = 0, .length=5, .msb_right =0 },
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.green = { .offset = 0, .length=5, .msb_right =0 },
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.blue = { .offset = 0, .length=5, .msb_right =0 },
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.transp= { .offset = 0, .length=1, .msb_right =0 }
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},
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{ .name = "ARGB1555", // ARGB1555
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.bpp = 16, .pixenum = ARGB1555,
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.red = { .offset = 10, .length=5, .msb_right =0 },
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.green = { .offset = 5, .length=5, .msb_right =0 },
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.blue = { .offset = 0, .length=5, .msb_right =0 },
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.transp= { .offset = 15, .length=1, .msb_right =0 }
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},
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{ .name = "RGB565", // RGB565
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.bpp = 16, .pixenum = RGB565,
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.red = { .offset = 11, .length=5, .msb_right =0 },
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.green = { .offset = 5, .length=6, .msb_right =0 },
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.blue = { .offset = 0, .length=5, .msb_right =0 },
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.transp= { .offset = 0, .length=0, .msb_right =0 }
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},
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{ .name = "ARGB", // 32 f*cking bits, the real McCoy :)
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.bpp = 32, .pixenum = ARGB,
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.red = { .offset = 16, .length=8, .msb_right =0 },
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.green = { .offset = 8, .length=8, .msb_right =0 },
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.blue = { .offset = 0, .length=8, .msb_right =0 },
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.transp= { .offset = 24, .length=8, .msb_right =0 }
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}
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};
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#define PIXELFORMATNUM (sizeof(pixelformattable)/sizeof(struct pixelformat))
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struct colour {
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__u16 r;
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__u16 g;
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__u16 b;
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__u16 a;
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};
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static
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struct colour colourtable[] = {
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{.r =0xffff, .g = 0xffff, .b=0xffff, .a=0xffff}, // fully transparent white
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{.r =0xffff, .g = 0x0000, .b=0x0000, .a=0x0000}, // red
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{.r =0x0000, .g = 0xffff, .b=0x0000, .a=0x0000}, // green
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{.r =0x0000, .g = 0x0000, .b=0xffff, .a=0x0000}, // blue
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{.r =0x0000, .g = 0x0000, .b=0x0000, .a=0x0000} // black
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};
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#define COLOURNUM (sizeof(colourtable)/sizeof(struct colour))
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struct rect{
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int x;
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int y;
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int width;
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int height;
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const struct colour *col;
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};
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struct pixel{ // up to 32 bits of pixel information
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char byte[4];
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};
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void col2pixel (struct pixel *pix, const struct pixelformat *pixf, const struct colour *col){
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switch (pixf->pixenum){
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case RGB565:
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pix->byte[0]=(col->r&0xf8)|(col->g&0xfc)>>5;
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pix->byte[1]=(col->g&0xfc)<<3|(col->b&0xf8)>>3;
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break;
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case ARGB1555:
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pix->byte[0]=(col->a&0x80)|(col->r&0xf8)>>1|(col->g&0xf8)>>6;
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pix->byte[1]=(col->g&0xf8)<<2|(col->b&0xf8)>>3;
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break;
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case ARGB:
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pix->byte[0]=col->a;
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pix->byte[1]=col->r;
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pix->byte[2]=col->g;
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pix->byte[3]=col->b;
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break;
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default:
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printf ("unknown pixelformat\n");
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exit(1);
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}
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}
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int setmode(int fbd, const struct pixelformat *pixf,const struct vidsize *vids){
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struct fb_var_screeninfo var;
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int stat;
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stat = ioctl (fbd, FBIOGET_VSCREENINFO,&var);
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if (stat<0) return -2;
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var.xres= vids->width;
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var.xres_virtual = vids->width;
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var.yres= vids->height;
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var.yres_virtual = vids->height;
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var.bits_per_pixel = pixf->bpp;
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var.red = pixf->red;
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var.green = pixf->green;
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var.blue = pixf->blue;
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var.transp = pixf->transp;
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stat = ioctl (fbd, FBIOPUT_VSCREENINFO,&var);
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if (stat<0) return -1;
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return 0;
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}
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// unefficient implementation, do NOT use it for your next ego shooter, please :)
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// for 4-Bit only rectangles with even width are supported
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// CLUT-modes use value of red component as index
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void drawrect(void *videoram, struct rect *r, const struct pixelformat *pixf, const struct vidsize *vids){
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int x,y,corwidth, bpp = 0, tocopy = 1;
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struct pixel pix;
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unsigned char *pmem = videoram;
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corwidth = r->width; // actually only "corrected" for 4 Bit
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if (pixf->pixenum!=CLUT4&&pixf->pixenum!=CLUT8){
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switch (pixf->pixenum){
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case ARGB1555:
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case RGB565:
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bpp = 16;
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tocopy = 2;
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break;
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case ARGB:
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bpp = 32;
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tocopy = 4;
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break;
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default:
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printf ("drawrect: unknown pixelformat(%d) bpp:%d\n",pixf->pixenum,pixf->bpp);
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exit(1);
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}
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col2pixel(&pix,pixf,r->col);
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} else {
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switch (pixf->pixenum){ // CLUT = Colour LookUp Table (palette)
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case CLUT4: // take red value as index in this case
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pix.byte[0]=(r->col->r)<<4|(r->col->r&0xf); // slightly cryptic... "rect->colour->red"
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corwidth>>=1; // we copy bytes
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bpp=4;
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tocopy=1;
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break;
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case CLUT8:
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pix.byte[0]=(r->col->r&0xff);
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bpp=8;
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tocopy=1;
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break;
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}
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}
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pmem=videoram+((((r->y*vids->width)+r->x)*bpp)>>3);
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for (y=0;y<r->height;y++){
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int offset = 0;
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for (x=0;x<corwidth;x++){
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memcpy (pmem+offset,pix.byte,tocopy);
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offset+=tocopy;
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}
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pmem +=((vids->width*bpp)>>3); // skip one whole line, actually should be taken from "fix-info"
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}
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}
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// create quick little test image, 4 colours from table
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void draw4field(void *videoram, const struct pixelformat *pixf, const struct vidsize *vids){
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struct rect r;
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struct colour c;
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int height, width;
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c.r = 1; // only used for the indexed modes, r is taken as index
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height = vids->height;
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width = vids->width;
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r.height = height>>1;
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r.width = width>>1;
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r.x = 0; r.y = 0;
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if (pixf->pixenum==CLUT4||pixf->pixenum==CLUT8) r.col = &c;
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else r.col = &colourtable[1];
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drawrect (videoram, &r, pixf, vids);
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r.x = width/2; r.y = 0;
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if (pixf->pixenum==CLUT4||pixf->pixenum==CLUT8) c.r = 2;
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else r.col = &colourtable[2];
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drawrect (videoram, &r, pixf, vids);
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r.x = 0; r.y = height/2;
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if (pixf->pixenum==CLUT4||pixf->pixenum==CLUT8) c.r = 3;
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else r.col = &colourtable[3];
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drawrect (videoram, &r, pixf, vids);
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r.x = width/2; r.y = height/2;
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if (pixf->pixenum==CLUT4||pixf->pixenum==CLUT8) c.r = 0;
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else r.col = &colourtable[0];
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drawrect (videoram, &r, pixf, vids);
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}
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void usage(char *name){
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printf ("Usage: %s [options]\n"
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"Options: -f<pixelformat>\n"
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" where format is one of:\n"
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" CLUT4,CLUT8,ARGB1555,RGB565,ARGB\n"
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" -s<width>x<heigth>\n"
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" where width is either 720,640,360,320\n"
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" and height is either 288,240,480,576\n"
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" -n\n"
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" disables clearing the framebuffer after drawing\n"
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" the testimage. This can be useful to keep the last\n"
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" drawn image onscreen.\n"
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"\nExample: %s -fRGB322\n",name,name);
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exit(0);
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}
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int main (int argc,char **argv){
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struct fb_fix_screeninfo fix;
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struct fb_var_screeninfo var;
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struct fb_cmap cmap;
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struct rect r;
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int fbd;
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unsigned char *pfb;
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int stat;
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int optchar,fmode=-1,smode=-1,clear=1;
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int i_cmap,i_size,i_pix;
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extern char *optarg;
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if (argc!=0&&argc>4) usage(argv[0]);
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while ( (optchar = getopt (argc,argv,"f:s:n"))!= -1){
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int i,height,width;
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switch (optchar){
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case 'f':
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for (i=0;i<(sizeof(pixname)/sizeof(char*));i++){
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if (!strncmp (optarg,pixname[i],strlen(pixname[i]))){
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fmode=i;
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printf ("displaying only %s-modes\n",pixname[i]);
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break;
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}
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}
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if (fmode==-1){
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printf ("unknown pixelformat\n");
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exit(0);
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}
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break;
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case 's':
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if (sscanf (optarg,"%dx%d",&width,&height)!=2){
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printf ("parsing size failed\n");
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exit(0);
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} else {
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printf ("requested size %dx%d\n",width,height);
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for (i=0;i<VIDSIZENUM;i++){
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if (vidsizetable[i].width == width &&
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vidsizetable[i].height == height){
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smode = i;
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break;
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}
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}
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if (smode==-1){
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printf ("this size is not supported\n");
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exit(0);
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}
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}
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break;
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case 'n':
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clear = 0;
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printf ("clearing framebuffer after drawing is disabled\n");
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break;
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case '?':
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usage (argv[0]);
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}
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}
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fbd = open (FBDEV, O_RDWR);
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if (fbd<0){
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perror ("Error opening framebuffer device");
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return 1;
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}
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stat = ioctl (fbd, FBIOGET_FSCREENINFO,&fix);
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if (stat<0){
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perror ("Error getting fix screeninfo");
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return 1;
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}
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stat = ioctl (fbd, FBIOGET_VSCREENINFO,&var);
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if (stat<0){
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perror ("Error getting var screeninfo");
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return 1;
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}
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stat = ioctl (fbd, FBIOPUT_VSCREENINFO,&var);
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if (stat<0){
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perror ("Error setting mode");
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return 1;
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}
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pfb = mmap (0, fix.smem_len, PROT_READ|PROT_WRITE, MAP_SHARED, fbd, 0);
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if (pfb == MAP_FAILED){
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perror ("Error mmap'ing framebuffer device");
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return 1;
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}
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// iterate over all modes
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for (i_pix=0;i_pix<PIXELFORMATNUM;i_pix++){
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if (fmode!=-1 && pixelformattable[i_pix].pixenum != fmode) continue;
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printf ("testing: %s",pixelformattable[i_pix].name);
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printf (" for sizes: \n");
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for (i_size=0;i_size<VIDSIZENUM;i_size++){
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if (smode!=-1 && i_size!=smode) continue;
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printf ("%dx%d ",vidsizetable[i_size].width,vidsizetable[i_size].height);
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fflush(stdout);
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if ((i_size%4)==3) printf ("\n");
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// try to set mode
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stat = setmode(fbd,&pixelformattable[i_pix],&vidsizetable[i_size]);
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if (stat==-2) perror ("fbtest: could not get fb_var-screeninfo from fb-device");
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else if (stat==-1){
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printf ("\nCould not set mode %s (%dx%d), possible reasons:\n"
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"- you have a GTX (soz m8)\n"
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"- your configuration does not have enough graphics RAM\n"
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"- you found a bug\n"
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"choose your poison accordingly...\n",
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pixelformattable[i_pix].name,vidsizetable[i_size].width,vidsizetable[i_size].height);
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continue;
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}
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// fill cmap;
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cmap.len = 1;
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if ((pixelformattable[i_pix].bpp==4)||
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((pixelformattable[i_pix].bpp==8)&&(pixelformattable[i_pix].red.length!=3))){
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for (i_cmap=0;i_cmap<COLOURNUM;i_cmap++){
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cmap.start=i_cmap;
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cmap.red=&colourtable[i_cmap].r;
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cmap.green=&colourtable[i_cmap].g;
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cmap.blue=&colourtable[i_cmap].b;
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cmap.transp=&colourtable[i_cmap].a;
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stat = ioctl (fbd, FBIOPUTCMAP, &cmap);
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if (stat<0) printf ("setting colourmap failed\n");
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}
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}
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// create the test image
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draw4field(pfb,&pixelformattable[i_pix],&vidsizetable[i_size]);
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usleep (500000);
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// clear screen
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if (clear){
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r.x=r.y=0;r.width = vidsizetable[i_size].width; r.height = vidsizetable[i_size].height;
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r.col = &colourtable[4];
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drawrect(pfb,&r,&pixelformattable[i_pix],&vidsizetable[i_size]);
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}
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}
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printf ("\n");
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}
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stat = munmap (pfb,fix.smem_len);
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if (stat<0){
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perror ("Error munmap'ing framebuffer device");
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return 1;
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}
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close (fbd);
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return 0;
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}
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