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vsync in mga/xmga

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@48 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi_esp 2001-03-07 01:07:46 +00:00
parent 1f034b6824
commit cbad69d75e
4 changed files with 28 additions and 25 deletions
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16
libvo/mga_common.c
View File

@ -1,6 +1,8 @@
// mga_vid drawing functions
extern int mga_next_frame;
static void
write_frame_g200(uint8_t *y,uint8_t *cr, uint8_t *cb)
{
@ -154,17 +156,15 @@ draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
static void
vo_mga_flip_page(void)
{
#if 0
ioctl(f,MGA_VID_FSEL,&next_frame);
if (next_frame)
vid_data = frame1;
else
vid_data = frame0;
next_frame = 2 - next_frame; // switch between fields A1 and B1
// printf("-- flip to %d --\n",mga_next_frame);
#if 1
ioctl(f,MGA_VID_FSEL,&mga_next_frame);
mga_next_frame=(mga_next_frame+1)&3;
vid_data=frames[mga_next_frame];
#endif
}

2
libvo/video_out.c
View File

@ -35,6 +35,8 @@
// Externally visible list of all vo drivers
//
int mga_next_frame=0;
extern vo_functions_t video_out_mga;
extern vo_functions_t video_out_xmga;
extern vo_functions_t video_out_x11;

17
libvo/vo_mga.c
View File

@ -50,8 +50,7 @@ static vo_info_t vo_info =
};
static mga_vid_config_t mga_vid_config;
static uint8_t *vid_data, *frame0, *frame1;
static int next_frame = 0;
static uint8_t *vid_data, *frames[4];
static int f;
#include "mga_common.c"
@ -98,14 +97,16 @@ init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint3
ioctl(f,MGA_VID_ON,0);
frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
frame_mem = (char*)mmap(0,frame_size*2,PROT_WRITE,MAP_SHARED,f,0);
frame0 = frame_mem;
frame1 = frame_mem + frame_size;
vid_data = frame0;
next_frame = 0;
frame_mem = (char*)mmap(0,frame_size*4,PROT_WRITE,MAP_SHARED,f,0);
frames[0] = frame_mem;
frames[1] = frame_mem + 1*frame_size;
frames[2] = frame_mem + 2*frame_size;
frames[3] = frame_mem + 3*frame_size;
mga_next_frame = 0;
vid_data = frames[mga_next_frame];
//clear the buffer
memset(frame_mem,0x80,frame_size*2);
memset(frame_mem,0x80,frame_size*4);
return 0;
}

18
libvo/vo_xmga.c
View File

@ -55,9 +55,7 @@ static vo_info_t vo_info =
static mga_vid_config_t mga_vid_config;
static uint8_t * vid_data;
static uint8_t * frame0;
static uint8_t * frame1;
static int next_frame=0;
static uint8_t * frames[4];
static int f;
static Display * mDisplay;
@ -277,12 +275,14 @@ static uint32_t init( uint32_t width, uint32_t height, uint32_t d_width, uint32_
#endif
frame_size=( ( width + 31 ) & ~31 ) * height + ( ( ( width + 31 ) & ~31 ) * height ) / 2;
frame_mem=(char*)mmap( 0,frame_size*2,PROT_WRITE,MAP_SHARED,f,0 );
frame0=frame_mem;
frame1=frame_mem + frame_size;
vid_data=frame0;
next_frame=0;
memset( frame_mem,0x80,frame_size * 2 );
frame_mem=(char*)mmap( 0,frame_size*4,PROT_WRITE,MAP_SHARED,f,0 );
frames[0] = frame_mem;
frames[1] = frame_mem + 1*frame_size;
frames[2] = frame_mem + 2*frame_size;
frames[3] = frame_mem + 3*frame_size;
mga_next_frame=0;
vid_data=frames[mga_next_frame];
memset( frame_mem,0x80,frame_size * 4 );
XFlush( mDisplay );
XSync( mDisplay,False );