/*
** SWimp_EndFrame
**
** This does an implementation specific copy from the backbuffer to the
** front buffer. In the Win32 case it uses BitBlt or BltFast depending
** on whether we're using DIB sections/GDI or DDRAW.
*/
void SWimp_EndFrame (void)
{
if (!vga_oktowrite())
return; // can't update screen if it's not active
// if (vid_waitforrefresh.value)
// vga_waitretrace();
if (VGA_planar)
VGA_UpdatePlanarScreen (vid.buffer);
else {
int total = vid.rowbytes * vid.height;
int offset;
for (offset=0;offset<total;offset+=0x10000) {
vga_setpage(offset/0x10000);
memcpy(framebuffer_ptr,
vid.buffer + offset,
((total-offset>0x10000)?0x10000:(total-offset)));
}
}
}
/*
** SWimp_SetPalette
**
** System specific palette setting routine. A NULL palette means
** to use the existing palette. The palette is expected to be in
** a padded 4-byte xRGB format.
*/
void SWimp_SetPalette( const unsigned char *palette )
{
static int tmppal[256*3];
const unsigned char *pal;
int *tp;
int i;
if ( !palette )
palette = ( const unsigned char * ) sw_state.currentpalette;
if (vga_getcolors() == 256)
{
tp = tmppal;
pal = palette;
for (i=0 ; i < 256 ; i++, pal += 4, tp += 3) {
tp[0] = pal[0] >> 2;
tp[1] = pal[1] >> 2;
tp[2] = pal[2] >> 2;
}
if (vga_oktowrite())
vga_setpalvec(0, 256, tmppal);
}
int vga_clear(void)
{
vga_screenoff();
#ifdef BACKGROUND
__svgalib_dont_switch_vt_yet();
#endif
if (MODEX)
goto modeX;
switch (CM) {
case G320x200x256:
case G320x240x256:
case G320x400x256:
case G360x480x256:
modeX:
#ifdef BACKGROUND
if (vga_oktowrite())
{
#endif
/* write to all planes */
port_out(0x02, SEQ_I);
port_out(0x0F, SEQ_D);
/* clear video memory */
memset(GM, 0, 65536);
#ifdef BACKGROUND
}
else
{
int i;
for (i = 0; i < 4; i++) {
/* save plane i */
__svgalib_fast_setpage(i);
memset(GM, 0, GRAPH_SIZE);
}
}
#endif
break;
default:
switch (CI.colors) {
case 2:
case 16:
vga_setcolor(0);
#ifdef BACKGROUND
if (vga_oktowrite())
{
#endif
/* write to all bits */
port_out(0x08, GRA_I);
port_out(0xFF, GRA_D);
#ifdef BACKGROUND
}
#endif
default:
{
int i;
int pages = (CI.ydim * CI.xbytes + 65535) >> 16;
#if defined(CONFIG_ALPHA_JENSEN)
int j;
#endif
#ifdef BACKGROUND
if (!vga_oktowrite())
{
switch (CI.colors) {
case 2:
case 16:
pages*=4;
}
}
#endif
for (i = 0; i < pages; ++i) {
vga_setpage(i);
#if defined(CONFIG_ALPHA_JENSEN)
for (j = 0; j < 65536; j += 2)
gr_writew(0, j);
#else
/* clear video memory */
memset(GM, 0, 65536);
#endif
}
}
break;
}
break;
}
vga_setcolor(15);
#ifdef BACKGROUND
__svgalib_is_vt_switching_needed();
#endif
vga_screenon();
return 0;
}
void graphicsinit(char *svgamode) //initialization of graphics, mode according to X_LOPIF
{
const short cur[32] =
{ 0x9FFF, 0x0FFF, 0x07FF, 0x83FF, 0xC1FF, 0xE0FF, 0xF067, 0xF003,
0xF001, 0xF000, 0xF800, 0xF800, 0xF800, 0xFC00, 0xFC00, 0xFC00,
0x0000, 0x6000, 0x7000, 0x3800, 0x1C00, 0x0E00, 0x0700, 0x0018,
0x07EC, 0x07EE, 0x001E, 0x03EE, 0x03EE, 0x001E, 0x00EC, 0x0002 };
xg_256=MM_Hic; //set Hicolor flag...
initpalette();
x_settextjusty(0,2); // always write text from upper left corner
#ifdef GGI
// printf("Initializing GGI visual target.\n");
ggiVis = ggiOpen (NULL);
ggiGetMode (ggiVis, &origMode);
ggiSetSimpleMode (ggiVis, 800, 600, 1, GT_16BIT);
SVGAx=799;
SVGAy=599;
ggiAddFlags(ggiVis,GGIFLAG_ASYNC);
#else
strupr(svgamode);
// printf("Console switched to graphics mode.\n");
if(strstr(svgamode,".I"))
{
vga_setmode(G640x480x64K);
gl_setcontextvga(G640x480x64K);
SVGAx=639;
SVGAy=479;
}
else
if(strstr(svgamode,".K"))
{
vga_setmode(G1024x768x64K);
gl_setcontextvga(G1024x768x64K);
SVGAx=1023;
SVGAy=767;
}
else
if(strstr(svgamode,".L"))
{
vga_setmode(G1280x1024x64K);
gl_setcontextvga(G1280x1024x64K);
SVGAx=1279;
SVGAy=1023;
}
if(strstr(svgamode,".M"))
{
vga_setmode(G1600x1200x64K);
gl_setcontextvga(G1600x1200x64K);
SVGAx=1599;
SVGAy=1199;
}
{
vga_setmode(G800x600x64K);
gl_setcontextvga(G800x600x64K);
SVGAx=799;
SVGAy=599;
}
vga_runinbackground(1);
vga_oktowrite();
gl_setwritemode(FONT_COMPRESSED|WRITEMODE_MASKED);
gl_setfontcolors(0,vga_white());
//gl_setfont(8,8,gl_font8x8);
gl_setrgbpalette();
gl_enableclipping();
#endif
x_defcurs( (short *)cur, (short *)&cur[16], 15); //mouse kursor
}
