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Code Issues Releases Wiki Activity

Double buffering support

Browse Source 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2687 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-11-04 16:20:58 +00:00
parent 6dfef68008
commit 11148f0835
2 changed files with 62 additions and 43 deletions

95
libvo/vo_vesa.c
View File

@ -147,9 +147,9 @@ static inline void __vbeSwitchBank(unsigned long offset)
if((err=vbeSetWindow(win.idx,new_offset)) != VBE_OK)
{
show_err:
vesa_term();
PRINT_VBE_ERR("vbeSetWindow",err);
printf("vo_vesa: Fatal error occured! Can't continue\n");
vesa_term();
exit(-1);
}
win.low = new_offset * gran;
@ -313,14 +313,19 @@ static void flip_page(void)
if(!HAS_DGA()) __vbeCopyData(dga_buffer);
flip_trigger = 0;
}
#if 0
if(vo_doublebuffering && multi_size > 1)
{
vbeSetDisplayStart(multi_buff[multi_idx],1);
multi_idx = multi_idx ? 0 : 1;
win.ptr = dga_buffer = video_base + multi_buff[multi_idx];
int err;
if((err=vbeSetDisplayStart(multi_buff[multi_idx],1)) != VBE_OK)
{
vesa_term();
PRINT_VBE_ERR("vbeSetDispayStart",err);
printf("vo_vesa: Fatal error occured! Can't continue\n");
exit(EXIT_FAILURE);
}
multi_idx = multi_idx ? 0 : 1;
win.ptr = dga_buffer = video_base + multi_buff[multi_idx];
}
#endif
/*
else
if(tripple_buffering)
@ -418,6 +423,34 @@ static void vesa_aspect(uint32_t width,uint32_t height,
}
}
static void paintBkGnd( void )
{
int x_res = video_mode_info.XResolution;
int y_res = video_mode_info.YResolution;
int x, y;
for (y = 0; y < y_res; ++y)
{
for (x = 0; x < x_res; ++x)
{
int r, g, b;
if ((x & 16) ^ (y & 16))
{
r = x * 255 / x_res;
g = y * 255 / y_res;
b = 255 - x * 255 / x_res;
}
else
{
r = 255 - x * 255 / x_res;
g = y * 255 / y_res;
b = 255 - y * 255 / y_res;
}
__vbeSetPixel(x, y, r, g, b);
}
}
}
static char *model2str(unsigned char type)
{
char *retval;
@ -796,42 +829,24 @@ init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint3
printf("vo_vesa: VESA initialization complete\n");
fflush(stdout);
}
if(verbose)
if(HAS_DGA())
{
int x_res = video_mode_info.XResolution;
int y_res = video_mode_info.YResolution;
int x, y;
for (y = 0; y < y_res; ++y)
{
for (x = 0; x < x_res; ++x)
{
int r, g, b;
if ((x & 16) ^ (y & 16))
{
r = x * 255 / x_res;
g = y * 255 / y_res;
b = 255 - x * 255 / x_res;
}
else
{
r = 255 - x * 255 / x_res;
g = y * 255 / y_res;
b = 255 - y * 255 / y_res;
}
__vbeSetPixel(x, y, r, g, b);
}
}
int y = 0;
for(i=0;i<MAX_BUFFERS;i++)
{
win.ptr = dga_buffer = video_base + multi_buff[i];
if(verbose) paintBkGnd();
}
}
/*if(1)*/
else
{
int x;
x = video_mode_info.XCharSize ?
(video_mode_info.XResolution/video_mode_info.XCharSize)/2-strlen(title)/2 :
0;
if(x < 0) x = 0;
vbeWriteString(x,0,7,title);
if(verbose) paintBkGnd();
{
int x;
x = (video_mode_info.XResolution/video_mode_info.XCharSize)/2-strlen(title)/2;
if(x < 0) x = 0;
vbeWriteString(x,0,7,title);
}
}
return 0;
}
@ -847,9 +862,9 @@ get_info(void)
static void
uninit(void)
{
vesa_term();
if(verbose > 2)
printf("vo_vesa: uninit was called\n");
vesa_term();
}

10
linux/vbelib.c
View File

@ -539,25 +539,29 @@ int vbeSetDisplayStart(unsigned long offset, int vsync)
"pushl %%ebx\n"
"movl %1, %%ebx\n"
::"a"(0x4f07),"S"(vsync ? 0x80 : 0),
"c"(offset & 0xffff),"d"((offset>>16)&0xffff):"memory");
"c"((offset>>2) & 0xffff),"d"((offset>>18)&0xffff):"memory");
(*vbe_pm_info.SetDisplayStart)();
__asm __volatile("popl %%ebx":::"memory");
retval = VBE_OK;
}
else
{
#if 0
/* Something wrong here */
struct LRMI_regs r;
unsigned long pixel_num;
memset(&r,0,sizeof(struct LRMI_regs));
r.eax = 0x4f07;
r.ebx = vsync ? 0x80 : 0;
pixel_num = offset%(unsigned long)curr_mode_info.BytesPerScanLine;
if(pixel_num*(unsigned long)curr_mode_info.BytesPerScanLine!=offset) pixel_num++;
r.eax = 0x4f07;
r.ebx = vsync ? 0x80 : 0;
r.ecx = pixel_num;
r.edx = offset/(unsigned long)curr_mode_info.BytesPerScanLine;
if(!VBE_LRMI_int(0x10,&r)) return VBE_VM86_FAIL;
retval = r.eax & 0xffff;
if(retval == 0x4f) retval = VBE_OK;
#endif
retval = VBE_BROKEN_BIOS;
}
return retval;
}