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Code Issues Releases Wiki Activity

- added double buffering :-)

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@263 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
acki2 2001-03-30 23:12:31 +00:00
parent 59ea3d5640
commit ae3707661f
1 changed files with 51 additions and 66 deletions
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117
libvo/vo_dga.c
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@ -29,6 +29,11 @@
* this, you're well off and may use these modes; for mpeg
* movies things could be different, but I was too lazy to implement
* it ...
* o you may define VO_DGA_FORCE_DEPTH to the depth you desire
* if you don't like the choice the driver makes
* Beware: unless you can use DGA2.0 this has to be your X Servers
* depth!!!
* o Added double buffering :-))
*/
@ -42,6 +47,7 @@
#include "video_out_internal.h"
#include "yuv2rgb.h"
//#undef HAVE_DGA2
LIBVO_EXTERN( dga )
@ -67,7 +73,7 @@ static int vo_dga_src_height; // height of video in pixels
static int vo_dga_bpp; // bytes per pixel in framebuffer
static int vo_dga_src_offset=0; // offset in src
static int vo_dga_vp_offset=0; // offset in dest
static int vo_dga_bytes_per_line; // longwords per line to copy
static int vo_dga_bytes_per_line; // bytes per line to copy
static int vo_dga_src_skip; // bytes to skip after copying one line
// (not supported yet) in src
static int vo_dga_vp_skip; // dto. for dest
@ -75,6 +81,13 @@ static int vo_dga_lines; // num of lines to copy
static int vo_dga_src_format;
static int vo_dga_planes; // bits per pixel on screen
static int vo_dga_dbf_mem_offset; // offset in bytes for alternative
// framebuffer (0 if dbf is not
// possible)
static int vo_dga_dbf_y_offset; // y offset (in scanlines)
static int
vo_dga_dbf_current; // current buffer (0 or 1)
static unsigned char *vo_dga_base;
static Display *vo_dga_dpy;
@ -116,15 +129,9 @@ static uint32_t draw_frame( uint8_t *src[] ){
char *s, *d;
if( vo_dga_src_format==IMGFMT_YV12 ){
// We'll never reach this point, because YV12 codecs always
// calls draw_slice
printf("vo_dga: draw_frame() doesn't support IMGFMT_YV12 (yet?)\n");
}else{
s = *src;
d = (&((char *)vo_dga_base)[vo_dga_vp_offset]);
rep_movsl(d, s, lpl, vo_dga_vp_skip, numlines );
}
s = *src;
d = (&((char *)vo_dga_base)[vo_dga_vp_offset + vo_dga_dbf_current * vo_dga_dbf_mem_offset]);
rep_movsl(d, s, lpl, vo_dga_vp_skip, numlines );
return 0;
}
@ -139,6 +146,20 @@ static void check_events(void)
//---------------------------------------------------------
static void flip_page( void ){
if(vo_dga_dbf_mem_offset != 0){
#ifdef HAVE_DGA2
XDGASetViewport (vo_dga_dpy, XDefaultScreen(vo_dga_dpy),
0, vo_dga_dbf_current * vo_dga_dbf_y_offset,
XDGAFlipRetrace);
#else
XF86DGASetViewPort (vo_dga_dpy, XDefaultScreen(vo_dga_dpy),
0, vo_dga_dbf_current * vo_dga_dbf_y_offset);
#endif
vo_dga_dbf_current = 1 - vo_dga_dbf_current;
}
check_events();
}
@ -226,6 +247,10 @@ static uint32_t query_format( uint32_t format )
printf("vo_dga: You're running 15/16 bit X Server; your hardware might use unsuitable RGB-mask!\n");
}
#endif
#ifdef VO_DGA_FORCE_DEPTH
dga_depths = 1<<(VO_DGA_FORCE_DEPTH-1);
#endif
dga_depths_init = 1;
if( dga_depths == 0){
@ -277,60 +302,6 @@ uninit(void)
}
#if 0
if (
(modelines[i].viewportWidth >= X) &&
(modelines[i].viewportHeight >= Y) &&
(
// prefer a better resolution either in X or in Y
// as long as the other dimension is at least the same
//
// hmm ... MAYBE it would be more clever to focus on the
// x-resolution; I had 712x400 and 640x480 and the movie
// was 640x360; 640x480 would be the 'right thing' here
// but since 712x400 was queried first I got this one.
// I think there should be a cmd-line switch to let the
// user choose the mode he likes ... (acki2)
(
((modelines[i].viewportWidth < mX) &&
!(modelines[i].viewportHeight > mY)) ||
((modelines[i].viewportHeight < mY) &&
!(modelines[i].viewportWidth > mX))
)
// but if we get an identical resolution choose
// the one with the lower refreshrate (saves bandwidth !!!)
// as long as it's above 50 Hz (acki2 on 30/3/2001)
||
(
(modelines[i].viewportWidth == mX) &&
(modelines[i].viewportHeight == mY) &&
(
(
modelines[i].verticalRefresh >= mVBI && mVBI < 50
)
||
(
mVBI >= 50 &&
modelines[i].verticalRefresh < mVBI &&
modelines[i].verticalRefresh >= 50
)
)
)
)
)
{
mX=modelines[i].viewportWidth;
mY=modelines[i].viewportHeight;
mVBI = modelines[i].verticalRefresh;
j=i;
printf(".ok!!\n");
}else{
printf(".no\n");
}
#endif
//----------------------------------------------------------
int check_mode( int x, int y,
@ -577,10 +548,24 @@ static uint32_t init( uint32_t width, uint32_t height,
XGrabPointer (vo_dga_dpy, DefaultRootWindow(vo_dga_dpy), True,
ButtonPressMask,GrabModeAsync, GrabModeAsync,
None, None, CurrentTime);
// TODO: chekc if mem of graphics adaptor is large enough for dbf
// set up variables for double buffering ...
vo_dga_dbf_y_offset = y_off + vo_dga_src_height;
vo_dga_dbf_mem_offset = vo_dga_width * vo_dga_bpp * vo_dga_dbf_y_offset;
vo_dga_dbf_current = 0;
if(format ==IMGFMT_YV12 )vo_dga_dbf_mem_offset = 0;
// disable doublebuffering for YV12
// now clear screen
memset(vo_dga_base, 0, vo_dga_width * vo_dga_vp_height * vo_dga_bpp);
memset(vo_dga_base, 0, vo_dga_width *
(vo_dga_vp_height + (vo_dga_dbf_mem_offset != 0 ? (vo_dga_src_height+y_off) : 0)) *
vo_dga_bpp);
vo_dga_is_running = 1;
return 0;