mpv/libvo/vo_3dfx.c

486 lines
12 KiB
C

/*
* video_out_3dfx.c
*
* Copyright (C) Colin Cross Apr 2000
*
* This file heavily based off of video_out_mga.c of Aaron Holtzman's
* mpeg2dec
*
* mpeg2dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* mpeg2dec is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
LIBVO_EXTERN(3dfx)
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <errno.h>
#include <wchar.h>
#include <signal.h>
#include <X11/Xlib.h>
#include <X11/extensions/xf86dga.h>
#include <X11/Xutil.h>
//#define LOG(x) syslog(LOG_USER | LOG_DEBUG,x)
#define LOG(x)
#include "drivers/3dfx.h"
#include "fastmemcpy.h"
static vo_info_t vo_info =
{
"3dfx (/dev/3dfx)",
"3dfx",
"Colin Cross <colin@MIT.EDU>",
""
};
static uint32_t is_fullscreen = 1;
static uint32_t vidwidth;
static uint32_t vidheight;
static uint32_t screenwidth;
static uint32_t screenheight;
static uint32_t screendepth = 2; //Only 16bpp supported right now
static uint32_t dispwidth = 1280; // You can change these to whatever you want
static uint32_t dispheight = 720; // 16:9 screen ratio??
static uint32_t dispx;
static uint32_t dispy;
static uint32_t *vidpage0;
static uint32_t *vidpage1;
static uint32_t *vidpage2;
static uint32_t vidpage0offset;
static uint32_t vidpage1offset;
static uint32_t vidpage2offset;
// Current pointer into framebuffer where display is located
static uint32_t targetoffset;
static uint32_t page_space;
static voodoo_io_reg *reg_IO;
static voodoo_2d_reg *reg_2d;
static voodoo_yuv_reg *reg_YUV;
static voodoo_yuv_fb *fb_YUV;
static uint32_t *memBase0, *memBase1;
static uint32_t baseAddr0, baseAddr1;
/* X11 related variables */
static Display *display;
static Window mywindow;
static int bpp;
static XWindowAttributes attribs;
static int X_already_started = 0;
static void
restore(void)
{
//reg_IO->vidDesktopStartAddr = vidpage0offset;
XF86DGADirectVideo(display,0,0);
}
static void
sighup(int foo)
{
//reg_IO->vidDesktopStartAddr = vidpage0offset;
XF86DGADirectVideo(display,0,0);
exit(0);
}
static void
restore_regs(voodoo_2d_reg *regs)
{
reg_2d->commandExtra = regs->commandExtra;
reg_2d->clip0Min = regs->clip0Min;
reg_2d->clip0Max = regs->clip0Max;
reg_2d->srcBaseAddr = regs->srcBaseAddr;
reg_2d->srcXY = regs->srcXY;
reg_2d->srcFormat = regs->srcFormat;
reg_2d->srcSize = regs->srcSize;
reg_2d->dstBaseAddr = regs->dstBaseAddr;
reg_2d->dstXY = regs->dstXY;
reg_2d->dstFormat = regs->dstFormat;
reg_2d->dstSize = regs->dstSize;
reg_2d->command = 0;
}
static uint32_t
create_window(Display *display)
{
int screen;
unsigned int fg, bg;
char *hello = "I hate X11";
XSizeHints hint;
XVisualInfo vinfo;
XEvent xev;
Colormap theCmap;
XSetWindowAttributes xswa;
unsigned long xswamask;
if (X_already_started)
return -1;
screen = DefaultScreen(display);
hint.x = 0;
hint.y = 10;
hint.width = dispwidth;
hint.height = dispheight;
hint.flags = PPosition | PSize;
bg = WhitePixel(display, screen);
fg = BlackPixel(display, screen);
XGetWindowAttributes(display, DefaultRootWindow(display), &attribs);
bpp = attribs.depth;
if (bpp != 16)
{
fprintf(stderr,"Only 16bpp supported!");
exit(-1);
}
XMatchVisualInfo(display,screen,bpp,TrueColor,&vinfo);
printf("visual id is %lx\n",vinfo.visualid);
theCmap = XCreateColormap(display, RootWindow(display,screen),
vinfo.visual, AllocNone);
xswa.background_pixel = 0;
xswa.border_pixel = 1;
xswa.colormap = theCmap;
xswamask = CWBackPixel | CWBorderPixel |CWColormap;
mywindow = XCreateWindow(display, RootWindow(display,screen),
hint.x, hint.y, hint.width, hint.height, 4, bpp,CopyFromParent,vinfo.visual,xswamask,&xswa);
XSelectInput(display, mywindow, StructureNotifyMask);
/* Tell other applications about this window */
XSetStandardProperties(display, mywindow, hello, hello, None, NULL, 0, &hint);
/* Map window. */
XMapWindow(display, mywindow);
/* Wait for map. */
do
{
XNextEvent(display, &xev);
}
while (xev.type != MapNotify || xev.xmap.event != mywindow);
XSelectInput(display, mywindow, NoEventMask);
XFlush(display);
XSync(display, False);
X_already_started++;
return 0;
}
static void
dump_yuv_planar(uint32_t *y, uint32_t *u, uint32_t *v, uint32_t to, uint32_t width, uint32_t height)
{
// YUV conversion works like this:
//
// We write the Y, U, and V planes separately into 3dfx YUV Planar memory
// region. The nice chip then takes these and packs them into the YUYV
// format in the regular frame buffer, starting at yuvBaseAddr, page 2 here.
// Then we tell the 3dfx to do a Screen to Screen Stretch BLT to copy all
// of the data on page 2 onto page 1, converting it to 16 bpp RGB as it goes.
// The result is a nice image on page 1 ready for display.
uint32_t j;
uint32_t y_imax, uv_imax, jmax;
reg_YUV->yuvBaseAddr = to;
reg_YUV->yuvStride = screenwidth*2;
LOG("video_out_3dfx: starting planar dump\n");
jmax = height>>1; // vidheight/2, height of U and V planes
y_imax = width; // Y plane is twice as wide as U and V planes
uv_imax = width>>1; // vidwidth/2/4, width of U and V planes in 32-bit words
for (j=0;j<jmax;j++)
{
//XXX this should be hand-rolled 32 bit memcpy for safeness.
memcpy(fb_YUV->U + (uint32_t) VOODOO_YUV_STRIDE* j ,((uint8_t*) u) + uv_imax* j , uv_imax);
memcpy(fb_YUV->V + (uint32_t) VOODOO_YUV_STRIDE* j ,((uint8_t*) v) + uv_imax* j , uv_imax);
memcpy(fb_YUV->Y + (uint32_t) VOODOO_YUV_STRIDE* (j<<1) ,((uint8_t*) y) + y_imax * (j<<1) , y_imax);
memcpy(fb_YUV->Y + (uint32_t) VOODOO_YUV_STRIDE*((j<<1)+1),((uint8_t*) y) + y_imax *((j<<1)+1), y_imax);
}
LOG("video_out_3dfx: done planar dump\n");
}
static void
screen_to_screen_stretch_blt(uint32_t to, uint32_t from, uint32_t width, uint32_t height)
{
//FIXME - this function should be called by a show_frame function that
// uses a series of blts to show only those areas not covered
// by another window
voodoo_2d_reg saved_regs;
LOG("video_out_3dfx: saving registers\n");
// Save VGA regs (so X kinda works when we're done)
saved_regs = *reg_2d;
/* The following lines set up the screen to screen stretch blt from page2 to
page 1
*/
LOG("video_out_3dfx: setting blt registers\n");
reg_2d->commandExtra = 4; //disable colorkeying, enable wait for v-refresh (0100b)
reg_2d->clip0Min = 0;
reg_2d->clip0Max = 0xFFFFFFFF; //no clipping
reg_2d->srcBaseAddr = from;
reg_2d->srcXY = 0;
reg_2d->srcFormat = screenwidth*2 | VOODOO_BLT_FORMAT_YUYV; // | 1<<21;
reg_2d->srcSize = vidwidth | (vidheight << 16);
reg_2d->dstBaseAddr = to;
reg_2d->dstXY = 0;
reg_2d->dstFormat = screenwidth*2 | VOODOO_BLT_FORMAT_16;
reg_2d->dstSize = width | (height << 16);
LOG("video_out_3dfx: starting blt\n");
// Executes screen to screen stretch blt
reg_2d->command = 2 | 1<<8 | 0xCC<<24;
LOG("video_out_3dfx: restoring regs\n");
restore_regs(&saved_regs);
LOG("video_out_3dfx: done blt\n");
}
static void
update_target(void)
{
uint32_t xp, yp, w, h, b, d;
Window root;
XGetGeometry(display,mywindow,&root,&xp,&yp,&w,&h,&b,&d);
XTranslateCoordinates(display,mywindow,root,0,0,&xp,&yp,&root);
dispx = (uint32_t) xp;
dispy = (uint32_t) yp;
dispwidth = (uint32_t) w;
dispheight = (uint32_t) h;
if (is_fullscreen)
targetoffset = vidpage0offset + (screenheight - dispheight)/2*screenwidth*screendepth + (screenwidth-dispwidth)/2*screendepth;
else
targetoffset = vidpage0offset + (dispy*screenwidth + dispx)*screendepth;
}
static uint32_t
init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
{
int fd;
char *name = ":0.0";
pioData data;
uint32_t retval;
if(getenv("DISPLAY"))
name = getenv("DISPLAY");
display = XOpenDisplay(name);
screenwidth = XDisplayWidth(display,0);
screenheight = XDisplayHeight(display,0);
page_space = screenwidth*screenheight*screendepth;
vidpage0offset = 0;
vidpage1offset = page_space; // Use third and fourth pages
vidpage2offset = page_space*2;
signal(SIGALRM,sighup);
//alarm(120);
// Open driver device
if ( (fd = open("/dev/3dfx",O_RDWR) ) == -1)
{
fprintf(stderr,"Couldn't open /dev/3dfx\n");
exit(1);
}
// Store sizes for later
vidwidth = width;
vidheight = height;
is_fullscreen = fullscreen = 0;
if (!is_fullscreen)
create_window(display);
// Ask 3dfx driver for base memory address 0
data.port = 0x10; // PCI_BASE_ADDRESS_0_LINUX;
data.size = 4;
data.value = &baseAddr0;
data.device = 0;
if ((retval = ioctl(fd,_IOC(_IOC_READ,'3',3,0),&data)) < 0)
{
printf("Error: %d\n",retval);
//return -1;
}
// Ask 3dfx driver for base memory address 1
data.port = 0x14; // PCI_BASE_ADDRESS_1_LINUX;
data.size = 4;
data.value = &baseAddr1;
data.device = 0;
if ((retval = ioctl(fd,_IOC(_IOC_READ,'3',3,0),&data)) < 0)
{
printf("Error: %d\n",retval);
//return -1;
}
// Map all 3dfx memory areas
memBase0 = mmap(0,0x1000000,PROT_READ | PROT_WRITE,MAP_SHARED,fd,baseAddr0);
memBase1 = mmap(0,3*page_space,PROT_READ | PROT_WRITE,MAP_SHARED,fd,baseAddr1);
if (memBase0 == (uint32_t *) 0xFFFFFFFF || memBase1 == (uint32_t *) 0xFFFFFFFF)
{
printf("Couldn't map 3dfx memory areas: %p,%p,%d\n",
memBase0,memBase1,errno);
}
// Set up global pointers
reg_IO = (void *)memBase0 + VOODOO_IO_REG_OFFSET;
reg_2d = (void *)memBase0 + VOODOO_2D_REG_OFFSET;
reg_YUV = (void *)memBase0 + VOODOO_YUV_REG_OFFSET;
fb_YUV = (void *)memBase0 + VOODOO_YUV_PLANE_OFFSET;
vidpage0 = (void *)memBase1 + (unsigned long int)vidpage0offset;
vidpage1 = (void *)memBase1 + (unsigned long int)vidpage1offset;
vidpage2 = (void *)memBase1 + (unsigned long int)vidpage2offset;
// Clear pages 1,2,3
// leave page 0, that belongs to X.
// So does part of 1. Oops.
memset(vidpage1,0x00,page_space);
memset(vidpage2,0x00,page_space);
if (is_fullscreen)
memset(vidpage0,0x00,page_space);
#ifndef VOODOO_DEBUG
// Show page 0 (unblanked)
reg_IO->vidDesktopStartAddr = vidpage0offset;
/* Stop X from messing with my video registers!
Find a better way to do this?
Currently I use DGA to tell XF86 to not screw with registers, but I can't really use it
to do FB stuff because I need to know the absolute FB position and offset FB position
to feed to BLT command
*/
//XF86DGADirectVideo(display,0,XF86DGADirectGraphics); //| XF86DGADirectMouse | XF86DGADirectKeyb);
#endif
/* fd is deliberately not closed - if it were, mmaps might be released??? */
atexit(restore);
printf("(display) 3dfx initialized %p\n",memBase1);
return 0;
}
static const vo_info_t*
get_info(void)
{
return &vo_info;
}
static uint32_t
draw_frame(uint8_t *src[])
{
LOG("video_out_3dfx: starting display_frame\n");
// Put packed data onto page 2
dump_yuv_planar((uint32_t *)src[0],(uint32_t *)src[1],(uint32_t *)src[2],
vidpage2offset,vidwidth,vidheight);
LOG("video_out_3dfx: done display_frame\n");
return 0;
}
static uint32_t
draw_slice(uint8_t *src[], uint32_t slice_num)
{
uint32_t target;
target = vidpage2offset + (screenwidth*2 * 16*slice_num);
dump_yuv_planar((uint32_t *)src[0],(uint32_t *)src[1],(uint32_t *)src[2],target,vidwidth,16);
return 0;
}
static void
flip_page(void)
{
//FIXME - update_target() should be called by event handler when window
// is resized or moved
update_target();
LOG("video_out_3dfx: calling blt function\n");
screen_to_screen_stretch_blt(targetoffset, vidpage2offset, dispwidth, dispheight);
}
static uint32_t
query_format(uint32_t format)
{
switch(format){
case IMGFMT_YV12:
// case IMGFMT_YUY2:
// case IMGFMT_RGB|24:
// case IMGFMT_BGR|24:
return 1;
}
return 0;
}
static void
uninit(void)
{
}
static void check_events(void)
{
}