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Code Issues Releases Wiki Activity

Allow negative x,y for the overlay. 

Fix the window size


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10340 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
albeu 2003-06-26 13:21:59 +00:00
parent 17d2c8e424
commit 329c07dcb2
1 changed files with 29 additions and 7 deletions
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34
drivers/tdfx_vid.c
View File

@ -529,10 +529,32 @@ static int tdfx_vid_set_overlay(unsigned long arg) {
return(-EFAULT);
}
if(ov.dst_x < 0 || ov.dst_y < 0) {
printk(KERN_DEBUG "tdfx_vid: Negative x/y not yet supported\n");
if(ov.dst_y < 0) {
int shift;
if(-ov.dst_y >= ov.src_height) {
printk(KERN_DEBUG "tdfx_vid: Overlay outside of the screen ????\n");
return(-EFAULT);
}
shift = (-ov.dst_y)/(double)ov.dst_height*ov.src_height;
ov.src[0] += shift*ov.src_stride;
ov.src_height -= shift;
ov.dst_height += ov.dst_y;
ov.dst_y = 0;
}
if(ov.dst_x < 0) {
int shift;
if(-ov.dst_x >= ov.src_width) {
printk(KERN_DEBUG "tdfx_vid: Overlay outside of the screen ????\n");
return(-EFAULT);
}
shift = (-ov.dst_x)/(double)ov.dst_width*ov.src_width;
shift = ((shift+3)/2)*2;
ov.src[0] += shift*2;
ov.src_width -= shift;
ov.dst_width += ov.dst_x;
ov.dst_x = 0;
}
vidcfg = tdfx_inl(VIDPROCCFG);
// clear the overlay fmt
@ -574,9 +596,9 @@ static int tdfx_vid_set_overlay(unsigned long arg) {
screen_w = tdfx_inl(VIDSCREENSIZE);
screen_h = (screen_w >> 12) & 0xFFF;
screen_w &= 0xFFF;
disp_w = ov.dst_x + ov.dst_width > screen_w ?
disp_w = ov.dst_x + ov.dst_width >= screen_w ?
screen_w - ov.dst_x : ov.dst_width;
disp_h = ov.dst_y + ov.dst_height > screen_h ?
disp_h = ov.dst_y + ov.dst_height >= screen_h ?
screen_h - ov.dst_y : ov.dst_height;
if(ov.dst_x >= screen_w || ov.dst_y >= screen_h ||
@ -621,8 +643,8 @@ static int tdfx_vid_set_overlay(unsigned long arg) {
//printk(KERN_DEBUG "tdfx_vid: start %dx%d\n",ov.dst_x & 0xFFF,ov.dst_y & 0xFFF);
tdfx_outl(VIDOVRSTARTCRD,(ov.dst_x & 0xFFF)|((ov.dst_y & 0xFFF)<<12));
// End coord
tdfx_outl(VIDOVRENDCRD, ((ov.dst_x + disp_w) & 0xFFF)|
(((ov.dst_y + disp_h) & 0xFFF)<<12));
tdfx_outl(VIDOVRENDCRD, ((ov.dst_x + disp_w-1) & 0xFFF)|
(((ov.dst_y + disp_h-1) & 0xFFF)<<12));
// H Scaling
tdfx_outl(VIDOVRDUDX,( ((u32)ov.src_width) << 20) / ov.dst_width);
// Src offset and width (in bytes)