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It prevents mode change when Hsync out of range.

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Supports non-countinous Hsync freq spec.

patch by Rudolf Marek <MAREKR2@cs.felk.cvut.cz>


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7361 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-09-10 20:41:13 +00:00
parent 6f66631ef5
commit 36abc4832b
1 changed files with 18 additions and 5 deletions
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23
libvo/vo_vesa.c
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@ -527,6 +527,7 @@ unsigned fillMultiBuffer( unsigned long vsize, unsigned nbuffs )
return i;
}
static int set_refresh(unsigned x, unsigned y, unsigned mode,struct VesaCRTCInfoBlock *crtc_pass)
{
unsigned pixclk;
@ -552,11 +553,12 @@ static int set_refresh(unsigned x, unsigned y, unsigned mode,struct VesaCRTCInfo
do
{
H_freq -= 0.1;
H_freq -= 0.01;
GTF_calcTimings(x,y,H_freq,GTF_HF,0, 0,crtc_pass);
// printf("PixelCLK %d\n",(unsigned)crtc_pass->PixelClock);
}
while (!in_range(monitor_vfreq,crtc_pass->RefreshRate/100));
while ( (!in_range(monitor_vfreq,crtc_pass->RefreshRate/100)||
!in_range(monitor_hfreq,H_freq*1000))&&(H_freq>0));
pixclk = crtc_pass->PixelClock;
// printf("PIXclk before %d\n",pixclk);
@ -575,8 +577,17 @@ static int set_refresh(unsigned x, unsigned y, unsigned mode,struct VesaCRTCInfo
printf("RR %d\n",crtc_pass->RefreshRate);
printf("PixelCLK %d\n",(unsigned)crtc_pass->PixelClock);*/
if (!in_range(monitor_vfreq,crtc_pass->RefreshRate/100)||
!in_range(monitor_hfreq,H_freq*1000)) {
printf( "vo_vesa: Unable to fit the mode into monitor's limitation."
" Not changing refresh rate.\n");
return 0;
}
return 1;
}
/* fullscreen:
* bit 0 (0x01) means fullscreen (-fs)
* bit 1 (0x02) means mode switching (-vm)
@ -886,11 +897,13 @@ config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uin
PRINT_VBE_ERR("vbeSaveState",err);
return -1;
}
/* TODO: check for VBE 3, monitor limitation
user might pass refresh value
/* TODO:
user might pass refresh value,
GTF constants might be read from monitor
for best results
for best results, I don't have a spec (RM)
*/
if (((int)(vib.VESAVersion >> 8) & 0xff) > 2) {
if (set_refresh(dstW,dstH,video_mode,&crtc_pass))