mpv/libvo/vo_syncfb.c

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// How many MegaBytes of RAM is on your G200/G400 card?
#define RAM_SIZE 16
/*
* video_out_syncfb.c
*
* Copyright (C) Aaron Holtzman - Aug 1999
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
*
* 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 <errno.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
LIBVO_EXTERN(syncfb)
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <linux/videodev.h>
#include "drivers/syncfb/syncfb.h"
#include "fastmemcpy.h"
static vo_info_t vo_info =
{
"Matrox G200/G400 Synchronous framebuffer (/dev/syncfb)",
"syncfb",
"Matthias Oelmann <mao@well.com>",
""
};
/* deinterlacing on? looks only good in 50 Hz(PAL) or 60 Hz(NTSC) modes */
static int vo_conf_deinterlace = 0;
/* 72/75 Hz Monitor frequency for progressive output */
static int vo_conf_cinemode = 0;
static syncfb_config_t _config;
static syncfb_capability_t sfb_caps;
static syncfb_buffer_info_t bufinfo;
static uint_8 *vid_data;
static uint_8 *frame_mem;
static int debug_skip_first = 250;
static int dbg_singleframe = 0;
static int conf_palette;
static int f;
/*
it seems that mpeg2dec never calls
draw_frame, so i could not test it....
*/
static void
write_frame_YUV422(uint_8 *y,uint_8 *cr, uint_8 *cb)
{
uint_8 *crp, *cbp;
uint_32 *dest32;
uint_32 bespitch,h,w;
bespitch = _config.src_pitch;
dest32 = (uint_32 *)vid_data;
for(h=0; h < _config.src_height/2; h++)
{
cbp = cb;
crp = cr;
for(w=0; w < _config.src_width/2; w++)
{
*dest32++ = (*y) + ((*cr)<<8) + ((*(y+1))<<16) + ((*cb)<<24);
y++; y++; cb++; cr++;
}
dest32 += (bespitch - _config.src_width) / 2;
for(w=0; w < _config.src_width/2; w++)
{
*dest32++ = (*y) + ((*crp)<<8) + ((*(y+1))<<16) + ((*cbp)<<24);
y++; y++; cbp++; crp++;
}
dest32 += (bespitch - _config.src_width) / 2;
}
}
static void
write_frame_YUV420P2(uint_8 *y,uint_8 *cr, uint_8 *cb)
{
uint_8 *dest, *tmp;
uint_32 bespitch,h,w;
bespitch = _config.src_pitch;
dest = frame_mem + bufinfo.offset;
for(h=0; h < _config.src_height; h++)
{
memcpy(dest, y, _config.src_width);
y += _config.src_width;
dest += bespitch;
}
dest = frame_mem + bufinfo.offset_p2;
for(h=0; h < _config.src_height/2; h++)
{
tmp = dest;
for(w=0; w < _config.src_width/2; w++)
{
*tmp++ = *cr++;
*tmp++ = *cb++;
}
dest += bespitch;
}
}
static void
write_frame_YUV420P3(uint_8 *y,uint_8 *cr, uint_8 *cb)
{
}
static void
write_slice_YUV420P2(uint_8 *y,uint_8 *cr, uint_8 *cb,uint_32 slice_num)
{
uint_8 *dest, *tmp;
uint_32 bespitch,h,w;
bespitch = _config.src_pitch;
dest = frame_mem + bufinfo.offset + (bespitch * 16 * slice_num);
for(h=0; h < 16; h++)
{
memcpy(dest, y, _config.src_width);
y += _config.src_width;
dest += bespitch;
}
dest = frame_mem + bufinfo.offset_p2 + (bespitch * 16 * slice_num) /2;
for(h=0; h < 8; h++)
{
tmp = dest;
for(w=0; w < _config.src_width/2; w++)
{
*tmp++ = *cr++;
*tmp++ = *cb++;
}
dest += bespitch;
}
}
static void
write_slice_YUV420P3(uint_8 *y,uint_8 *cr, uint_8 *cb,int stride[],uint_32 ypos,uint_32 xsize,uint_32 ysize)
{
uint_8 *dest;
uint_32 bespitch,h;
bespitch = _config.src_pitch;
dest = frame_mem + bufinfo.offset + (bespitch * ypos);
for(h=0; h < ysize; h++)
{
memcpy(dest, y, xsize);
y += stride[0];
dest += bespitch;
}
xsize/=2;
ysize/=2;
dest = frame_mem + bufinfo.offset_p2 + (bespitch * ypos)/4;
for(h=0; h < ysize; h++)
{
memcpy(dest, cr, xsize);
cr += stride[1];
dest += bespitch/2;
}
dest = frame_mem + bufinfo.offset_p3 + (bespitch * ypos)/4;
for(h=0; h < ysize; h++)
{
memcpy(dest, cb, xsize);
cb += stride[2];
dest += bespitch/2;
}
}
static void
write_slice_YUV422(uint_8 *y,uint_8 *cr, uint_8 *cb,uint_32 slice_num)
{
uint_8 *crp, *cbp;
uint_32 *dest32;
uint_32 bespitch,h,w;
bespitch = _config.src_pitch;
dest32 = (uint_32 *)(vid_data + (bespitch * 16 * slice_num) * 2);
for(h=0; h < 8; h++)
{
cbp = cb;
crp = cr;
for(w=0; w < _config.src_width/2; w++)
{
*dest32++ = (*y) + ((*cr)<<8) + ((*(y+1))<<16) + ((*cb)<<24);
y++; y++; cb++; cr++;
}
dest32 += (bespitch - _config.src_width) / 2;
for(w=0; w < _config.src_width/2; w++)
{
*dest32++ = (*y) + ((*crp)<<8) + ((*(y+1))<<16) + ((*cbp)<<24);
y++; y++; cbp++; crp++;
}
dest32 += (bespitch - _config.src_width) / 2;
}
}
//static uint32_t draw_slice(uint8_t *src[], uint32_t slice_num)
static uint32_t
draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
{
if ( vid_data == NULL ) return 0;
write_slice_YUV420P3(src[0],src[1], src[2],stride,y,w,h);
//printf("sorry, not syncfb/draw_slice() implemented yet...\n");
#if 0
if ( conf_palette == VIDEO_PALETTE_YUV422 ) {
write_slice_YUV422(src[0],src[1], src[2],slice_num);
} else if ( conf_palette == VIDEO_PALETTE_YUV420P2 ) {
write_slice_YUV420P2(src[0],src[1], src[2],slice_num);
} else if ( conf_palette == VIDEO_PALETTE_YUV420P3 ) {
write_slice_YUV420P3(src[0],src[1], src[2],slice_num);
}
#endif
return 0;
}
static void draw_osd(void)
{
}
static void
flip_page(void)
{
// memset(frame_mem + bufinfo.offset_p2, 0x80, _config.src_width*config.src_height);
ioctl(f,SYNCFB_COMMIT_BUFFER,&bufinfo);
if ( dbg_singleframe ) {
if ( debug_skip_first == 0 ) {
printf( "Press 'anykey' for field 1\n" );
getchar();
ioctl(f,SYNCFB_VBI,0);
}
if ( debug_skip_first > 0 ) {
debug_skip_first--;
// debug_skip_first = 0;
if ( debug_skip_first == 0 ) {
ioctl(f,SYNCFB_VBI,0);
ioctl(f,SYNCFB_VBI,0);
ioctl(f,SYNCFB_VBI,0);
}
}
if ( debug_skip_first == 0 ) {
printf( "Press 'anykey' for field 2\n" );
getchar();
ioctl(f,SYNCFB_VBI,0);
}
}
ioctl(f,SYNCFB_REQUEST_BUFFER,&bufinfo);
if ( bufinfo.id == -1 ) printf( "Got buffer #%d\n", bufinfo.id );
vid_data = (uint_8 *)(frame_mem + bufinfo.offset);
if ( bufinfo.id == -1 ) {
//vid_data = frame_mem;
vid_data = NULL;
}
// printf("Flip %d\n", bufinfo.offset);
}
static uint32_t draw_frame(uint8_t *src[])
{
printf("DRAW FRAME!!!\n");
if ( conf_palette == VIDEO_PALETTE_YUV422 ) {
write_frame_YUV422(src[0],src[1], src[2]);
} else if ( conf_palette == VIDEO_PALETTE_YUV420P2 ) {
write_frame_YUV420P2(src[0],src[1], src[2]);
} else if ( conf_palette == VIDEO_PALETTE_YUV420P3 ) {
write_frame_YUV420P3(src[0],src[1], src[2]);
}
flip_page();
return 0;
}
static uint32_t
query_format(uint32_t format)
{
switch(format){
case IMGFMT_YV12:
// case IMGFMT_RGB|24:
// case IMGFMT_BGR|24:
return 1;
}
return 0;
}
static uint32_t config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
{
uint_32 frame_size;
f = open("/dev/syncfb",O_RDWR);
if(f == -1)
{
f = open("/dev/mga_vid",O_RDWR);
if(f == -1)
{
printf("Couldn't open /dev/syncfb or /dev/mga_vid\n");
return(-1);
}
}
if (ioctl(f,SYNCFB_GET_CAPS,&sfb_caps)) perror("Error in mga_vid_config ioctl");
if (ioctl(f,SYNCFB_GET_CONFIG,&config)) perror("Error in mga_vid_config ioctl");
if (sfb_caps.palettes & (1<<VIDEO_PALETTE_YUV420P3) ) {
_config.src_palette= VIDEO_PALETTE_YUV420P3;
printf("using palette yuv420p3\n");
}else if ( sfb_caps.palettes & (1<<VIDEO_PALETTE_YUV420P2) ) {
_config.src_palette= VIDEO_PALETTE_YUV420P2;
printf("using palette yuv420p2\n");
} else if ( sfb_caps.palettes & (1<<VIDEO_PALETTE_YUV422) ) {
_config.src_palette= VIDEO_PALETTE_YUV422;
printf("using palette yuv422\n");
} else {
printf("no supported palette found\n");
return -1;
}
// _config.src_palette= VIDEO_PALETTE_YUV422;
if ( vo_conf_cinemode ) {
_config.default_repeat = 3;
} else {
_config.default_repeat = 2;
}
conf_palette = _config.src_palette;
if ( vo_conf_deinterlace ) {
_config.syncfb_mode = SYNCFB_FEATURE_SCALE | SYNCFB_FEATURE_BLOCK_REQUEST | SYNCFB_FEATURE_DEINTERLACE;
_config.default_repeat = 1;
} else {
_config.syncfb_mode = SYNCFB_FEATURE_SCALE | SYNCFB_FEATURE_BLOCK_REQUEST;
}
_config.fb_screen_size = (RAM_SIZE-4)*0x100000; //(1280 * 1024 * 32) / 8;
_config.src_width = width;
_config.src_height= height;
_config.image_width = d_width;
_config.image_height= d_height;
//_config.image_width = 1024;
//_config.image_height= 576;
_config.image_xorg= 0;
_config.image_yorg= 0;
printf ("BES Sourcer size: %d x %d\n", width, height);
ioctl(f,SYNCFB_ON,0);
if (ioctl(f,SYNCFB_SET_CONFIG,&_config)) perror("Error in mga_vid_config ioctl");
printf ("Framebuffer memory: %ld in %ld buffers\n", sfb_caps.memory_size, _config.buffers);
frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
frame_mem = (uint_8*)mmap(0,sfb_caps.memory_size,PROT_WRITE,MAP_SHARED,f,0);
printf( "Requesting first buffer #%d\n", bufinfo.id );
ioctl(f,SYNCFB_REQUEST_BUFFER,&bufinfo);
printf( "Got first buffer #%d\n", bufinfo.id );
vid_data = (uint_8 *)(frame_mem + bufinfo.offset);
//clear the buffer
// memset(frame_mem,0x80,frame_size*2);
return 0;
}
static const vo_info_t*
get_info(void)
{
return &vo_info;
}
static void
uninit(void)
{
if (ioctl(f,SYNCFB_OFF,0)) perror("Error in OFF ioctl");
}
static void check_events(void)
{
}
static uint32_t preinit(const char *arg)
{
if(arg)
{
printf("vo_syncfb: Unknown subdevice: %s\n",arg);
return ENOSYS;
}
return 0;
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
}
return VO_NOTIMPL;
}