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New async rendering.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@620
This commit is contained in:
Sjoerd van der Berg 2003-01-05 12:08:49 +00:00
parent 4bcf247a00
commit af01668b34
1 changed files with 21 additions and 13 deletions
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34
src/hardware/vga.cpp
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@ -39,12 +39,24 @@ Bit32u FillTable[16]={
0xffff0000,0xffff00ff,0xffffff00,0xffffffff
};
static void EndRetrace(void) {
/* start the actual display update now */
RENDER_DoUpdate();
vga.config.retrace=false;
}
static void VGA_BlankTimer(void) {
PIC_AddEvent(&VGA_BlankTimer,vga.draw.blank);
static void VGA_BlankTimer() {
PIC_AddEvent(VGA_BlankTimer,vga.draw.blank);
PIC_AddEvent(EndRetrace,667);
/* Setup a timer to destroy the vertical retrace bit in a few microseconds */
vga.config.real_start=vga.config.display_start;
vga.config.retrace=true;
}
static void VGA_DrawHandler(RENDER_Part_Handler part_handler) {
Bit8u * buf,* bufsplit;
/* Draw the current frame */
if (!vga.draw.resizing && RENDER_StartUpdate()) {
if (!vga.draw.resizing) {
if (vga.config.line_compare<vga.draw.lines) {
Bitu stop=vga.config.line_compare;
if (vga.draw.double_height) stop/=2;
@ -69,8 +81,8 @@ static void VGA_BlankTimer(void) {
LOG_WARN("VGA:Unhandled split screen mode %d",vga.mode);
goto norender;
}
RENDER_Part(buf,0,0,vga.draw.width,stop);
RENDER_Part(bufsplit,0,stop,vga.draw.width,vga.draw.height-stop);
part_handler(buf,0,0,vga.draw.width,stop);
part_handler(bufsplit,0,stop,vga.draw.width,vga.draw.height-stop);
} else {
drawnormal:
switch (vga.mode) {
@ -96,15 +108,11 @@ drawnormal:
buf=&vga.mem.linear[vga.config.real_start*4+vga.config.pel_panning/2];
break;
}
RENDER_Part(buf,0,0,vga.draw.width,vga.draw.height);
part_handler(buf,0,0,vga.draw.width,vga.draw.height);
}
norender:
RENDER_EndUpdate();
norender:;
}
VGA_StartRetrace();
}
void VGA_FindSettings(void) {
@ -220,7 +228,7 @@ static void VGA_DoResize(void) {
LOG_VGA("Width %d, Height %d",width,height);
LOG_VGA("Flags %X, fps %f",flags,fps);
RENDER_SetSize(width,height,8,pitch,((float)width/(float)height),flags);
RENDER_SetSize(width,height,8,pitch,((float)width/(float)height),flags,&VGA_DrawHandler);
vga.draw.blank=(Bitu)(1000000/fps);
PIC_AddEvent(VGA_BlankTimer,vga.draw.blank);
}