mpv/libvo/vo_tdfxfb.c

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/* Copyright (C) Mark Zealey, 2002, <mark@zealos.org>. Released under the terms
* and conditions of the GPL.
*
* 30/03/02: An almost total rewrite, added DR support and support for modes
* other than 16bpp. Fixed the crash when playing multiple files
* 07/04/02: Fixed DR support, added YUY2 support, fixed OSD stuff.
* 08/04/02: Fixed a wierd sound corruption problem caused by some optomizations
* I made.
* 09/04/02: Fixed a problem with changing the variables passed to draw_slice().
* Fixed DR support for YV12 et al. Added BGR support. Removed lots of dud code.
* 10/04/02: Changed the memcpy functions to mem2agpcpy.. should be a tad
* faster.
* 11/04/02: Added a compile option so you can watch the film with the console
* as the background, or not.
* 13/04/02: Fix rough OSD stuff by rendering it straight onto the output
* buffer. Added double-buffering. Supports hardware zoom/reduce zoom modes.
* 13/04/02: Misc cleanups of the code.
*
* Hints and tricks:
* - Use -dr to get direct rendering
* - Use -vop yuy2 to get yuy2 rendering, *MUCH* faster than yv12
* - To get a black background and nice smooth OSD, use -double
* - To get the console as a background, but with scaled OSD, use -nodouble
* - The driver supports both scaling and shrinking the image using the -x and
* -y options on the mplayer commandline.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <linux/fb.h>
#include "config.h"
#include "fastmemcpy.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "drivers/3dfx.h"
LIBVO_EXTERN(tdfxfb)
static vo_info_t vo_info =
{
"3Dfx Banshee/Voodoo3/Voodoo5",
"tdfxfb",
"Mark Zealey <mark@zealos.org>"
""
};
/* Some registers on the card */
#define S2S_STRECH_BLT 2 // BLT + Strech
#define S2S_IMMED (1 << 8) // Do it immediatly
#define S2S_ROP (0xCC << 24) // ???
/* Stepping between the different YUV plane registers */
#define YUV_STRIDE 1024
struct YUV_plane {
char Y[0x0100000];
char U[0x0100000];
char V[0x0100000];
};
static int fd;
static struct fb_fix_screeninfo fb_finfo;
static struct fb_var_screeninfo fb_vinfo;
static uint32_t in_width, in_height, in_format, in_depth, in_voodoo_format,
screenwidth, screenheight, screendepth, vidwidth, vidheight, vidx, vidy,
vid_voodoo_format, *vidpage, *hidpage, *inpage, vidpageoffset,
hidpageoffset, inpageoffset, *memBase0, *memBase1, fs, r_width, r_height;
static volatile voodoo_io_reg *reg_IO;
static voodoo_2d_reg *reg_2d;
static voodoo_yuv_reg *reg_YUV;
static struct YUV_plane *YUV;
static void (*alpha_func)(), (*alpha_func_double)();
static uint32_t preinit(const char *arg)
{
char *name;
if(!(name = getenv("FRAMEBUFFER")))
name = "/dev/fb0";
if((fd = open(name, O_RDWR)) == -1) {
printf("tdfxfb: can't open %s: %s\n", name, strerror(errno));
return -1;
}
if(ioctl(fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
printf("tdfxfb: problem with FBITGET_FSCREENINFO ioctl: %s\n",
strerror(errno));
return -1;
}
if(ioctl(fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
printf("tdfxfb: problem with FBITGET_VSCREENINFO ioctl: %s\n",
strerror(errno));
return -1;
}
/* BANSHEE means any of the series aparently */
if (fb_finfo.accel != FB_ACCEL_3DFX_BANSHEE) {
printf("tdfxfb: This driver is only supports the 3Dfx Banshee,"
" Voodoo3 and Voodoo 5\n");
return -1;
}
/* Open up a window to the hardware */
memBase1 = mmap(0, fb_finfo.smem_len, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
memBase0 = mmap(0, fb_finfo.mmio_len, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, fb_finfo.smem_len);
if((long)memBase0 == -1 || (long)memBase1 == -1) {
printf("tdfxfb: Couldn't map memory areas: %s\n", strerror(errno));
return -1;
}
/* Set up global pointers to the voodoo's regs */
reg_IO = (void *)memBase0 + VOODOO_IO_REG_OFFSET;
reg_2d = (void *)memBase0 + VOODOO_2D_REG_OFFSET;
reg_YUV = (void *)memBase0 + VOODOO_YUV_REG_OFFSET;
YUV = (void *)memBase0 + VOODOO_YUV_PLANE_OFFSET;
return 0;
}
static void uninit(void)
{
if(reg_IO) {
/* Restore the screen (Linux lives at 0) */
reg_IO->vidDesktopStartAddr = 0;
reg_IO = NULL;
}
/* And close our mess */
if(memBase1) {
munmap(memBase1, fb_finfo.smem_len);
memBase1 = NULL;
}
if(memBase0) {
munmap(memBase0, fb_finfo.mmio_len);
memBase0 = NULL;
}
if(fd != -1) {
close(fd);
fd = -1;
}
}
static void clear_screen()
{
if(vo_doublebuffering) {
memset(vidpage, 0, screenwidth * screenheight * screendepth);
memset(hidpage, 0, screenwidth * screenheight * screendepth);
}
}
/* Setup output screen dimensions etc */
static void setup_screen(uint32_t full)
{
fs = full;
if(fs) { /* Full screen */
double ratio = (double)in_width / in_height;
vidwidth = screenwidth;
vidheight = screenheight;
if(screenwidth / ratio <= screenheight)
vidheight = (double)screenwidth / ratio;
else
vidwidth = (double)screenheight * ratio;
vidx = (screenwidth - vidwidth) / 2;
vidy = (screenheight - vidheight) / 2;
} else { /* Reset to normal size */
if(r_width > screenwidth || r_height > screenheight)
printf("tdfxfb: your resolution is too small to display "
"the whole movie...\n");
vidwidth = r_width;
vidheight = r_height;
vidx = vidy = 0;
}
clear_screen();
}
static uint32_t config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height,
uint32_t flags, char *title, uint32_t format, const vo_tune_info_t *info)
{
screenwidth = fb_vinfo.xres;
screenheight = fb_vinfo.yres;
in_width = width;
in_height = height;
in_format = format;
r_width = d_width;
r_height = d_height;
/* Setup the screen for rendering to */
switch(fb_vinfo.bits_per_pixel) {
case 16:
screendepth = 2;
vid_voodoo_format = VOODOO_BLT_FORMAT_16;
alpha_func_double = vo_draw_alpha_rgb16;
break;
case 24:
screendepth = 3;
vid_voodoo_format = VOODOO_BLT_FORMAT_24;
alpha_func_double = vo_draw_alpha_rgb24;
break;
case 32:
screendepth = 4;
vid_voodoo_format = VOODOO_BLT_FORMAT_32;
alpha_func_double = vo_draw_alpha_rgb32;
break;
default:
printf("tdfxfb: %d bpp output is not supported\n", fb_vinfo.bits_per_pixel);
return -1;
}
vid_voodoo_format |= screenwidth * screendepth;
/* Some defaults here */
in_voodoo_format = VOODOO_BLT_FORMAT_YUYV;
in_depth = 2;
alpha_func = vo_draw_alpha_yuy2;
switch(in_format) {
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YUY2:
break;
case IMGFMT_BGR16:
in_voodoo_format = VOODOO_BLT_FORMAT_16;
alpha_func = vo_draw_alpha_rgb16;
break;
case IMGFMT_BGR24:
in_depth = 3;
in_voodoo_format = VOODOO_BLT_FORMAT_24;
alpha_func = vo_draw_alpha_rgb24;
break;
case IMGFMT_BGR32:
in_depth = 4;
in_voodoo_format = VOODOO_BLT_FORMAT_32;
alpha_func = vo_draw_alpha_rgb32;
break;
default:
printf("tdfxfb: Eik! Something's wrong with control().\n");
return -1;
}
in_voodoo_format |= in_width * in_depth;
/* Linux lives in the first frame */
if(vo_doublebuffering) {
vidpageoffset = screenwidth * screenheight * screendepth;
hidpageoffset = vidpageoffset + screenwidth * screenheight * screendepth;
} else
vidpageoffset = hidpageoffset = 0; /* Console background */
inpageoffset = hidpageoffset + screenwidth * screenheight * screendepth;
if(inpageoffset + in_width * in_depth * in_height > fb_finfo.smem_len) {
printf("tdfxfb: Not enough video memory to play this movie. Try at a lower resolution\n");
return -1;
}
vidpage = (void *)memBase1 + (unsigned long)vidpageoffset;
hidpage = (void *)memBase1 + (unsigned long)hidpageoffset;
inpage = (void *)memBase1 + (unsigned long)inpageoffset;
setup_screen(flags & VOFLAG_FULLSCREEN);
memset(inpage, 0, in_width * in_height * in_depth);
printf("tdfxfb: screen is %dx%d at %d bpp, in is %dx%d at %d bpp, norm is %dx%d\n",
screenwidth, screenheight, screendepth * 8,
in_width, in_height, in_depth * 8,
d_width, d_height);
return 0;
}
/* Double-buffering draw_alpha */
static void draw_alpha_double(int x, int y, int w, int h, unsigned char *src,
unsigned char *srca, int stride)
{
char *dst = (char *)vidpage + ((y + vidy) * screenwidth + x + vidx) * screendepth;
alpha_func_double(w, h, src, srca, stride, dst, screenwidth * screendepth);
}
/* Single-buffering draw_alpha */
static void draw_alpha(int x, int y, int w, int h, unsigned char *src,
unsigned char *srca, int stride)
{
char *dst = (char *)inpage + (y * in_width + x) * in_depth;
alpha_func(w, h, src, srca, stride, dst, in_width * in_depth);
}
static void draw_osd(void)
{
if(!vo_doublebuffering)
vo_draw_text(in_width, in_height, draw_alpha);
}
/* Render onto the screen */
static void flip_page(void)
{
voodoo_2d_reg regs = *reg_2d; /* Copy the regs */
int i = 0;
if(vo_doublebuffering) {
/* Flip to an offscreen buffer for rendering */
uint32_t t = vidpageoffset;
void *j = vidpage;
vidpage = hidpage;
hidpage = j;
vidpageoffset = hidpageoffset;
hidpageoffset = t;
}
reg_2d->commandExtra = 0;
reg_2d->clip0Min = 0;
reg_2d->clip0Max = 0xffffffff;
reg_2d->srcBaseAddr = inpageoffset;
reg_2d->srcXY = 0;
reg_2d->srcFormat = in_voodoo_format;
reg_2d->srcSize = XYREG(in_width, in_height);
reg_2d->dstBaseAddr = vidpageoffset;
reg_2d->dstXY = XYREG(vidx, vidy);
reg_2d->dstFormat = vid_voodoo_format;
reg_2d->dstSize = XYREG(vidwidth, vidheight);
reg_2d->command = S2S_STRECH_BLT | S2S_IMMED | S2S_ROP;
/* Wait for the command to finish (If we don't do this, we get wierd
* sound corruption... */
while((reg_IO->status & 0x1f) < 1)
/* Wait */;
*((volatile uint32_t *)((uint32_t *)reg_IO + COMMAND_3D)) = COMMAND_3D_NOP;
while(i < 3)
if(!(reg_IO->status & STATUS_BUSY))
i++;
/* Restore the old regs now */
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;
/* Render any text onto this buffer */
if(vo_doublebuffering)
vo_draw_text(vidwidth, vidheight, draw_alpha_double);
/* And flip to the new buffer! */
reg_IO->vidDesktopStartAddr = vidpageoffset;
}
static uint32_t draw_frame(uint8_t *src[])
{
mem2agpcpy(inpage, src[0], in_width * in_depth * in_height);
return 0;
}
static uint32_t draw_slice(uint8_t *i[], int s[], int w, int h, int x, int y)
{
/* We want to render to the YUV to the input page + the location
* of the stripes we're doing */
reg_YUV->yuvBaseAddr = inpageoffset + in_width * in_depth * y + x;
reg_YUV->yuvStride = in_width * in_depth;
/* Put the YUV channels into the voodoos internal combiner unit
* thingie */
mem2agpcpy_pic(YUV->Y, i[0], s[0], h , YUV_STRIDE, s[0]);
mem2agpcpy_pic(YUV->U, i[1], s[1], h / 2, YUV_STRIDE, s[1]);
mem2agpcpy_pic(YUV->V, i[2], s[2], h / 2, YUV_STRIDE, s[2]);
return 0;
}
/* Attempt to start doing DR */
static uint32_t get_image(mp_image_t *mpi)
{
static int enabled = 0;
if(!enabled && mpi->flags & MP_IMGFLAG_READABLE) /* slow video ram */
return VO_FALSE;
switch(in_format) {
case IMGFMT_YUY2:
case IMGFMT_BGR16:
case IMGFMT_BGR24:
case IMGFMT_BGR32:
mpi->planes[0] = (char *)inpage;
mpi->stride[0] = in_width * in_depth;
break;
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
if(!enabled)
if(!(mpi->flags & MP_IMGFLAG_ACCEPT_STRIDE))
return VO_FALSE;
mpi->planes[0] = YUV->Y;
mpi->planes[1] = YUV->U;
mpi->planes[2] = YUV->V;
mpi->stride[0] = mpi->stride[1] = mpi->stride[2] = YUV_STRIDE;
break;
default:
return VO_FALSE;
}
if(!enabled) {
printf("tdfxfb: get_image() SUCCESS -> Direct Rendering ENABLED\n");
enabled = 1;
}
mpi->width = in_width;
mpi->flags |= MP_IMGFLAG_DIRECT;
return VO_TRUE;
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch(request) {
case VOCTRL_GET_IMAGE:
return get_image(data);
case VOCTRL_QUERY_FORMAT:
switch(*((uint32_t*)data)) {
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YUY2:
case IMGFMT_BGR16:
case IMGFMT_BGR24:
case IMGFMT_BGR32:
return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
VFCAP_OSD | VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN;
}
return 0; /* Not supported */
case VOCTRL_FULLSCREEN:
setup_screen(!fs);
return 0;
}
return VO_NOTIMPL;
}
/* Dummy funcs */
static void check_events(void) {}
static const vo_info_t* get_info(void) { return &vo_info; }