/* fb.c -- Simple frame buffer
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/* fb.c -- Simple frame buffer
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Copyright (C) 2001 Marko Mlinar, markom@opencores.org
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Copyright (C) 2001 Marko Mlinar, markom@opencores.org
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify
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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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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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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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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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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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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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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <stdio.h>
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#include "config.h"
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#ifdef HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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#include "port.h"
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#include "arch.h"
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#include "sim-config.h"
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#include "sim-config.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "fb.h"
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#include "fb.h"
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#include "sched.h"
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#include "sched.h"
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#define FB_WRAP (512*1024)
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#define FB_WRAP (512*1024)
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static unsigned long pal[256];
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static unsigned long pal[256];
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static int fb_ctrl = 0;
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static int fb_ctrl = 0;
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static int fb_pic = 0;
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static int fb_pic = 0;
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static int fb_in_refresh = 1;
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static int fb_in_refresh = 1;
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static int fb_refresh_count = 0;
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static int fb_refresh_count = 0;
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static unsigned long fb_addr = 0;
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static oraddr_t fb_addr = 0;
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static unsigned long cam_addr = 0;
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static oraddr_t cam_addr = 0;
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static int camerax = 0, cameray = 0, camera_pos = 0;
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static int camerax = 0, cameray = 0, camera_pos = 0;
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static void change_buf_addr (unsigned long addr)
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static void change_buf_addr (oraddr_t addr)
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{
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{
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fb_addr = addr;
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fb_addr = addr;
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}
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}
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/* Write a register */
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/* Write a register */
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void fb_write32 (unsigned long addr, unsigned long value)
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void fb_write32 (oraddr_t addr, uint32_t value)
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{
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{
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int a = (addr - config.fb.baseaddr);
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int a = (addr - config.fb.baseaddr);
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switch (a) {
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switch (a) {
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case FB_CTRL: fb_ctrl = value; break;
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case FB_CTRL: fb_ctrl = value; break;
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case FB_BUFADDR: change_buf_addr (value); break;
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case FB_BUFADDR: change_buf_addr (value); break;
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case FB_CAMBUFADDR: cam_addr = value; break;
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case FB_CAMBUFADDR: cam_addr = value; break;
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case FB_CAMPOSADDR: camera_pos = value;
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case FB_CAMPOSADDR: camera_pos = value;
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camerax = value % FB_SIZEX;
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camerax = value % FB_SIZEX;
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cameray = value / FB_SIZEX;
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cameray = value / FB_SIZEX;
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break;
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break;
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default:
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default:
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a -= FB_PAL;
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a -= FB_PAL;
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a /= 4;
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a /= 4;
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if (a < 0 || a >= 256) {
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if (a < 0 || a >= 256) {
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fprintf (stderr, "Write out of palette buffer (0x%08lx)!\n", addr);
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fprintf (stderr, "Write out of palette buffer (0x%"PRIxADDR")!\n", addr);
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runtime.sim.cont_run = 0;
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runtime.sim.cont_run = 0;
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} else pal[a] = value;
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} else pal[a] = value;
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break;
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break;
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}
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}
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}
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}
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/* Read a register */
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/* Read a register */
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unsigned long fb_read32 (unsigned long addr)
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oraddr_t fb_read32 (oraddr_t addr)
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{
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{
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int a = (addr - config.fb.baseaddr);
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int a = (addr - config.fb.baseaddr);
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switch (a) {
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switch (a) {
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case FB_CTRL:
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case FB_CTRL:
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return fb_ctrl & ~0xff000000| (fb_in_refresh ? 0x80000000 : 0) | ((unsigned long)(fb_refresh_count & 0x7f) << 24);
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return fb_ctrl & ~0xff000000| (fb_in_refresh ? 0x80000000 : 0) | ((unsigned long)(fb_refresh_count & 0x7f) << 24);
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break;
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break;
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case FB_BUFADDR: return fb_addr; break;
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case FB_BUFADDR: return fb_addr; break;
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case FB_CAMBUFADDR: return cam_addr; break;
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case FB_CAMBUFADDR: return cam_addr; break;
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case FB_CAMPOSADDR: return camera_pos; break;
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case FB_CAMPOSADDR: return camera_pos; break;
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default:
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default:
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a -= FB_PAL;
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a -= FB_PAL;
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a /= 4;
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a /= 4;
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if (a < 0 || a >= 256) {
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if (a < 0 || a >= 256) {
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fprintf (stderr, "Read out of palette buffer (0x%08lx)!\n", addr);
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fprintf (stderr, "Read out of palette buffer (0x%"PRIxADDR")!\n", addr);
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runtime.sim.cont_run = 0;
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runtime.sim.cont_run = 0;
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return 0;
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return 0;
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} else return pal[a];
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} else return pal[a];
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}
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}
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}
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}
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/* define these also for big endian */
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/* define these also for big endian */
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#if __BIG_ENDIAN__
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#if __BIG_ENDIAN__
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#define CNV32(x) (\
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#define CNV32(x) (\
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((((x) >> 24) & 0xff) << 0)\
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((((x) >> 24) & 0xff) << 0)\
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| ((((x) >> 16) & 0xff) << 8)\
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| ((((x) >> 16) & 0xff) << 8)\
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| ((((x) >> 8) & 0xff) << 16)\
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| ((((x) >> 8) & 0xff) << 16)\
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| ((((x) >> 0) & 0xff) << 24))
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| ((((x) >> 0) & 0xff) << 24))
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#define CNV16(x) (\
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#define CNV16(x) (\
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((((x) >> 8) & 0xff) << 0)\
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((((x) >> 8) & 0xff) << 0)\
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| ((((x) >> 0) & 0xff) << 8))
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| ((((x) >> 0) & 0xff) << 8))
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#else
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#else
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#define CNV16(x) (x)
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#define CNV16(x) (x)
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#define CNV32(x) (x)
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#define CNV32(x) (x)
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#endif
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#endif
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/* Dumps a bmp file, based on current image */
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/* Dumps a bmp file, based on current image */
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static int fb_dump_image8 (char *filename)
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static int fb_dump_image8 (char *filename)
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{
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{
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int sx = FB_SIZEX;
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int sx = FB_SIZEX;
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int sy = FB_SIZEY;
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int sy = FB_SIZEY;
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int i, x, y;
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int i, x, y;
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FILE *fo;
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FILE *fo;
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unsigned short int u16;
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unsigned short int u16;
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unsigned long int u32;
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unsigned long int u32;
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if (config.sim.verbose) PRINTF ("Creating %s...", filename);
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if (config.sim.verbose) PRINTF ("Creating %s...", filename);
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fo = fopen (filename, "wb+");
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fo = fopen (filename, "wb+");
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u16 = CNV16(19778); /* BM */
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u16 = CNV16(19778); /* BM */
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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u32 = CNV32(14 + 40 + sx * sy + 1024); /* size */
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u32 = CNV32(14 + 40 + sx * sy + 1024); /* size */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(0); /* reserved */
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u32 = CNV32(0); /* reserved */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = 14 + 40 + 1024; /* offset */
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u32 = 14 + 40 + 1024; /* offset */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(40); /* header size */
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u32 = CNV32(40); /* header size */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(sx); /* width */
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u32 = CNV32(sx); /* width */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(sy); /* height */
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u32 = CNV32(sy); /* height */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u16 = CNV16(1); /* planes */
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u16 = CNV16(1); /* planes */
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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u16 = CNV16(8); /* bits */
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u16 = CNV16(8); /* bits */
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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u32 = CNV32(0); /* compression */
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u32 = CNV32(0); /* compression */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(x * y); /* image size */
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u32 = CNV32(x * y); /* image size */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(2835); /* x resolution */
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u32 = CNV32(2835); /* x resolution */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(2835); /* y resolution */
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u32 = CNV32(2835); /* y resolution */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(0); /* ncolours = 0; should be generated */
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u32 = CNV32(0); /* ncolours = 0; should be generated */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(0); /* important colours; all are important */
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u32 = CNV32(0); /* important colours; all are important */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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for (i = 0; i < 256; i++) {
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for (i = 0; i < 256; i++) {
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unsigned long val, d;
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unsigned long val, d;
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d = pal[i];
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d = pal[i];
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#if 1
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#if 1
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val = ((d >> 0) & 0x1f) << 3; /* Blue */
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val = ((d >> 0) & 0x1f) << 3; /* Blue */
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val |= ((d >> 5) & 0x3f) << 10; /* Green */
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val |= ((d >> 5) & 0x3f) << 10; /* Green */
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val |= ((d >> 11) & 0x1f) << 19; /* Red */
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val |= ((d >> 11) & 0x1f) << 19; /* Red */
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#else
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#else
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val = CNV32(pal[i]);
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val = CNV32(pal[i]);
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#endif
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#endif
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if (!fwrite (&val, 4, 1, fo)) return 1;
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if (!fwrite (&val, 4, 1, fo)) return 1;
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}
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}
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if (config.sim.verbose) PRINTF ("(%i,%i)", sx, sy);
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if (config.sim.verbose) PRINTF ("(%i,%i)", sx, sy);
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/* Data is stored upside down */
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/* Data is stored upside down */
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for (y = sy - 1; y >= 0; y--) {
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for (y = sy - 1; y >= 0; y--) {
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int align = (4 - sx) % 4;
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int align = (4 - sx) % 4;
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int zero = CNV32(0);
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int zero = CNV32(0);
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int add;
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int add;
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while (align < 0) align += 4;
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while (align < 0) align += 4;
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for (x = 0; x < sx; x++) {
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for (x = 0; x < sx; x++) {
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add = (fb_addr & ~(FB_WRAP - 1)) | ((fb_addr + y * sx + x) & (FB_WRAP - 1));
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add = (fb_addr & ~(FB_WRAP - 1)) | ((fb_addr + y * sx + x) & (FB_WRAP - 1));
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fputc (evalsim_mem8 (add), fo);
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fputc (evalsim_mem8 (add), fo);
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}
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}
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if (align && !fwrite (&zero, align, 1, fo)) return 1;
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if (align && !fwrite (&zero, align, 1, fo)) return 1;
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}
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}
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if (config.sim.verbose) PRINTF ("DONE\n");
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if (config.sim.verbose) PRINTF ("DONE\n");
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fclose (fo);
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fclose (fo);
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return 0;
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return 0;
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}
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}
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/* Dumps a bmp file, based on current image */
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/* Dumps a bmp file, based on current image */
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static int fb_dump_image24 (char *filename)
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static int fb_dump_image24 (char *filename)
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{
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{
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int sx = FB_SIZEX;
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int sx = FB_SIZEX;
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int sy = FB_SIZEY;
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int sy = FB_SIZEY;
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int x, y;
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int x, y;
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FILE *fo;
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FILE *fo;
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unsigned short int u16;
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unsigned short int u16;
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unsigned long int u32;
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unsigned long int u32;
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if (config.sim.verbose) PRINTF ("Creating %s...", filename);
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if (config.sim.verbose) PRINTF ("Creating %s...", filename);
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fo = fopen (filename, "wb+");
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fo = fopen (filename, "wb+");
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u16 = CNV16(19778); /* BM */
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u16 = CNV16(19778); /* BM */
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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u32 = CNV32(14 + 40 + sx * sy * 3); /* size */
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u32 = CNV32(14 + 40 + sx * sy * 3); /* size */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(0); /* reserved */
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u32 = CNV32(0); /* reserved */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = 14 + 40; /* offset */
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u32 = 14 + 40; /* offset */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(40); /* header size */
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u32 = CNV32(40); /* header size */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(sx); /* width */
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u32 = CNV32(sx); /* width */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(sy); /* height */
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u32 = CNV32(sy); /* height */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u16 = CNV16(1); /* planes */
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u16 = CNV16(1); /* planes */
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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u16 = CNV16(24); /* bits */
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u16 = CNV16(24); /* bits */
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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if (!fwrite (&u16, 2, 1, fo)) return 1;
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u32 = CNV32(0); /* compression */
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u32 = CNV32(0); /* compression */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(x * y * 3); /* image size */
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u32 = CNV32(x * y * 3); /* image size */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(2835); /* x resolution */
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u32 = CNV32(2835); /* x resolution */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(2835); /* y resolution */
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u32 = CNV32(2835); /* y resolution */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(0); /* ncolours = 0; should be generated */
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u32 = CNV32(0); /* ncolours = 0; should be generated */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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u32 = CNV32(0); /* important colours; all are important */
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u32 = CNV32(0); /* important colours; all are important */
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (!fwrite (&u32, 4, 1, fo)) return 1;
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if (config.sim.verbose) PRINTF ("(%i,%i)", sx, sy);
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if (config.sim.verbose) PRINTF ("(%i,%i)", sx, sy);
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/* Data is stored upside down */
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/* Data is stored upside down */
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for (y = sy - 1; y >= 0; y--) {
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for (y = sy - 1; y >= 0; y--) {
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unsigned char line[FB_SIZEX][3];
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unsigned char line[FB_SIZEX][3];
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for (x = 0; x < sx; x++)
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for (x = 0; x < sx; x++)
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if (y >= cameray && x >= camerax && y < cameray + CAM_SIZEY && x < camerax + CAM_SIZEX) {
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if (y >= cameray && x >= camerax && y < cameray + CAM_SIZEY && x < camerax + CAM_SIZEX) {
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int add = (cam_addr + (x - camerax + (y - cameray) * CAM_SIZEX) * 2) ^ 2;
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int add = (cam_addr + (x - camerax + (y - cameray) * CAM_SIZEX) * 2) ^ 2;
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unsigned short d = evalsim_mem16 (add);
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unsigned short d = evalsim_mem16 (add);
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line[x][0] = ((d >> 0) & 0x1f) << 3; /* Blue */
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line[x][0] = ((d >> 0) & 0x1f) << 3; /* Blue */
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line[x][1] = ((d >> 5) & 0x3f) << 2; /* Green */
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line[x][1] = ((d >> 5) & 0x3f) << 2; /* Green */
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line[x][2] = ((d >> 11) & 0x1f) << 3; /* Red */
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line[x][2] = ((d >> 11) & 0x1f) << 3; /* Red */
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} else {
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} else {
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int add = (fb_addr & ~(FB_WRAP - 1)) | ((fb_addr + y * sx + x) & (FB_WRAP - 1));
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int add = (fb_addr & ~(FB_WRAP - 1)) | ((fb_addr + y * sx + x) & (FB_WRAP - 1));
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unsigned short d = pal[evalsim_mem8 (add)];
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unsigned short d = pal[evalsim_mem8 (add)];
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line[x][0] = ((d >> 0) & 0x1f) << 3; /* Blue */
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line[x][0] = ((d >> 0) & 0x1f) << 3; /* Blue */
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line[x][1] = ((d >> 5) & 0x3f) << 2; /* Green */
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line[x][1] = ((d >> 5) & 0x3f) << 2; /* Green */
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line[x][2] = ((d >> 11) & 0x1f) << 3; /* Red */
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line[x][2] = ((d >> 11) & 0x1f) << 3; /* Red */
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}
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}
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if(!fwrite (line, sizeof(line), 1, fo)) return 1;
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if(!fwrite (line, sizeof(line), 1, fo)) return 1;
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}
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}
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|
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if (config.sim.verbose) PRINTF ("DONE\n");
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if (config.sim.verbose) PRINTF ("DONE\n");
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fclose (fo);
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fclose (fo);
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return 0;
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return 0;
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}
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}
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void fb_job (int param)
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void fb_job (int param)
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{
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{
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if (param) {
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if (param) {
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/* dump the image? */
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/* dump the image? */
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if (fb_ctrl & 1) {
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if (fb_ctrl & 1) {
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char temp[STR_SIZE];
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char temp[STR_SIZE];
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sprintf (temp, "%s%04i.bmp", &config.fb.filename[0], fb_pic);
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sprintf (temp, "%s%04i.bmp", &config.fb.filename[0], fb_pic);
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if (fb_ctrl & 2) fb_dump_image24 (temp);
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if (fb_ctrl & 2) fb_dump_image24 (temp);
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else fb_dump_image8 (temp);
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else fb_dump_image8 (temp);
|
fb_pic++;
|
fb_pic++;
|
}
|
}
|
SCHED_ADD(fb_job, 0, runtime.sim.cycles + config.fb.refresh_rate - config.fb.refresh_rate / REFRESH_DIVIDER);
|
SCHED_ADD(fb_job, 0, runtime.sim.cycles + config.fb.refresh_rate - config.fb.refresh_rate / REFRESH_DIVIDER);
|
fb_in_refresh = 0;
|
fb_in_refresh = 0;
|
} else {
|
} else {
|
fb_refresh_count++;
|
fb_refresh_count++;
|
SCHED_ADD(fb_job, 1, runtime.sim.cycles + config.fb.refresh_rate / REFRESH_DIVIDER);
|
SCHED_ADD(fb_job, 1, runtime.sim.cycles + config.fb.refresh_rate / REFRESH_DIVIDER);
|
|
|
}
|
}
|
}
|
}
|
|
|
/* Reset all VGAs */
|
/* Reset all VGAs */
|
void fb_reset ()
|
void fb_reset ()
|
{
|
{
|
int i;
|
int i;
|
|
|
if (config.fb.enabled) {
|
if (config.fb.enabled) {
|
fb_pic = 0;
|
fb_pic = 0;
|
fb_addr = 0;
|
fb_addr = 0;
|
fb_ctrl = 0;
|
fb_ctrl = 0;
|
|
|
for (i = 0; i < 256; i++)
|
for (i = 0; i < 256; i++)
|
pal[i] = (i << 16) | (i << 8) | (i << 0);
|
pal[i] = (i << 16) | (i << 8) | (i << 0);
|
|
|
if (config.fb.baseaddr)
|
if (config.fb.baseaddr)
|
register_memoryarea(config.fb.baseaddr, FB_PAL + 256*4, 4, 0, fb_read32, fb_write32);
|
register_memoryarea(config.fb.baseaddr, FB_PAL + 256*4, 4, 0, fb_read32, fb_write32);
|
SCHED_ADD(fb_job, 0, runtime.sim.cycles + config.fb.refresh_rate);
|
SCHED_ADD(fb_job, 0, runtime.sim.cycles + config.fb.refresh_rate);
|
}
|
}
|
}
|
}
|
|
|
