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/*
* vesa_lvo.c
*
* Copyright (C) Nick Kurshev <nickols_k@mail.ru> - Oct 2001
*
* You can redistribute this file under terms and conditions
* of GNU General Public licence v2.
*
* This file contains vo_vesa interface to Linux Video Overlay.
* (Partly based on vo_mga.c from mplayer's package)
*/
#include <inttypes.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "vesa_lvo.h"
#include "img_format.h"
#include "../drivers/mga_vid.h" /* <- should be changed to "linux/'something'.h" */
#include "fastmemcpy.h"
#include "../mmx_defs.h"
#define WIDTH_ALIGN 32 /* should be 16 for radeons */
#define NUM_FRAMES 2
static uint8_t *frames[NUM_FRAMES];
static int lvo_handler = -1;
static uint8_t *lvo_mem = NULL;
static uint8_t next_frame;
static mga_vid_config_t mga_vid_config;
static unsigned image_bpp,image_height,image_width;
#define PIXEL_SIZE() ((video_mode_info.BitsPerPixel+7)/8)
#define SCREEN_LINE_SIZE(pixel_size) (video_mode_info.XResolution*(pixel_size) )
#define IMAGE_LINE_SIZE(pixel_size) (image_width*(pixel_size))
int vlvo_init(const char *drvname,unsigned src_width,unsigned src_height,
unsigned x_org,unsigned y_org,unsigned dst_width,
unsigned dst_height,unsigned format,unsigned dest_bpp)
{
size_t i,awidth;
lvo_handler = open(drvname,O_RDWR);
if(lvo_handler == -1)
{
printf("Couldn't open %s\n",drvname);
return -1;
}
image_width = src_width;
image_height = src_height;
mga_vid_config.version=MGA_VID_VERSION;
mga_vid_config.format=format;
awidth = (src_width + (WIDTH_ALIGN-1)) & ~(WIDTH_ALIGN-1);
switch(format){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
image_bpp=16;
mga_vid_config.frame_size = awidth*src_height+(awidth*src_height)/2;
break;
case IMGFMT_YUY2:
case IMGFMT_UYVY:
image_bpp=16;
mga_vid_config.frame_size = awidth*src_height*2;
break;
case IMGFMT_RGB15:
case IMGFMT_BGR15:
case IMGFMT_RGB16:
case IMGFMT_BGR16:
image_bpp=16;
mga_vid_config.frame_size = awidth*src_height*2;
break;
case IMGFMT_RGB24:
case IMGFMT_BGR24:
image_bpp=24;
mga_vid_config.frame_size = awidth*src_height*3;
break;
case IMGFMT_RGB32:
case IMGFMT_BGR32:
image_bpp=32;
mga_vid_config.frame_size = awidth*src_height*4;
break;
default:
printf("vesa_lvo: invalid output format %s(%0X)\n",vo_format_name(format),format);
return -1;
}
mga_vid_config.colkey_on=0;
mga_vid_config.src_width = src_width;
mga_vid_config.src_height= src_height;
mga_vid_config.dest_width = dst_width;
mga_vid_config.dest_height= dst_height;
mga_vid_config.x_org=x_org;
mga_vid_config.y_org=y_org;
mga_vid_config.num_frames=NUM_FRAMES;
if (ioctl(lvo_handler,MGA_VID_CONFIG,&mga_vid_config))
{
perror("Error in mga_vid_config ioctl()");
printf("Your mga_vid driver version is incompatible with this MPlayer version!\n");
return -1;
}
ioctl(lvo_handler,MGA_VID_ON,0);
frames[0] = (char*)mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,lvo_handler,0);
for(i=1;i<NUM_FRAMES;i++)
frames[i] = frames[i-1] + mga_vid_config.frame_size;
next_frame = 0;
lvo_mem = frames[next_frame];
/*clear the buffer*/
memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
return 0;
}
void vlvo_term( void )
{
ioctl( lvo_handler,MGA_VID_OFF,0 );
munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
if(lvo_handler != -1) close(lvo_handler);
}
uint32_t vlvo_draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y)
{
uint8_t *src;
uint8_t *dest;
uint32_t bespitch,bespitch2;
int i;
bespitch = (mga_vid_config.src_width + (WIDTH_ALIGN-1)) & ~(WIDTH_ALIGN-1);
bespitch2 = bespitch/2;
dest = lvo_mem + bespitch * y + x;
src = image[0];
for(i=0;i<h;i++){
memcpy(dest,src,w);
src+=stride[0];
dest += bespitch;
}
w/=2;h/=2;x/=2;y/=2;
dest = lvo_mem + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
src = image[1];
for(i=0;i<h;i++){
memcpy(dest,src,w);
src+=stride[1];
dest += bespitch2;
}
dest = lvo_mem + bespitch*mga_vid_config.src_height
+ bespitch*mga_vid_config.src_height / 4
+ bespitch2 * y + x;
src = image[2];
for(i=0;i<h;i++){
memcpy(dest,src,w);
src+=stride[2];
dest += bespitch2;
}
}
uint32_t vlvo_draw_frame(uint8_t *src[])
{
size_t i, ssize;
uint8_t *dest;
const uint8_t *sptr;
ssize = IMAGE_LINE_SIZE((image_bpp+7)/8);
dest = lvo_mem;
sptr = src[0];
for(i=0;i<image_height;i++)
{
memcpy(dest,sptr,ssize);
sptr += ssize;
dest += ssize;
}
}
void vlvo_flip_page(void)
{
ioctl(lvo_handler,MGA_VID_FSEL,&next_frame);
next_frame=(next_frame+1)%mga_vid_config.num_frames;
lvo_mem=frames[next_frame];
}
void vlvo_draw_osd(void)
{
/* TODO: hw support */
}
uint32_t vlvo_query_info(uint32_t format)
{
return 1;
}
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