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New retrace code and fixed the display start

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@521
This commit is contained in:
Sjoerd van der Berg 2002-11-17 11:21:12 +00:00
parent 073f2bcfe3
commit 8cd9f4a3a6
1 changed files with 18 additions and 16 deletions
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34
src/hardware/vga_draw.cpp
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@ -26,34 +26,36 @@
void VGA_Render_GFX_2(Bit8u * * data) {
*data=vga.buffer;
VGA_DrawGFX2_Full(vga.buffer,vga.draw.width);
vga.config.retrace=true;
VGA_StartRetrace();
}
void VGA_Render_GFX_4(Bit8u * * data) {
*data=vga.buffer;
VGA_DrawGFX4_Full(vga.buffer,vga.draw.width);
vga.config.retrace=true;
VGA_StartRetrace();
}
void VGA_Render_GFX_16(Bit8u * * data) {
*data=&vga.buffer[vga.config.display_start*8+vga.config.pel_panning];
vga.config.retrace=true;
// *data=&vga.buffer[vga.config.display_start*8+vga.config.pel_panning];
*data=&vga.buffer[vga.config.real_start*8+vga.config.pel_panning];
VGA_StartRetrace();
}
void VGA_Render_GFX_256U(Bit8u * * data) {
*data=&vga.mem.linear[vga.config.display_start*4+vga.config.pel_panning];
vga.config.retrace=true;
// *data=&vga.mem.linear[vga.config.display_start*4+vga.config.pel_panning];
*data=&vga.mem.linear[vga.config.real_start*4+vga.config.pel_panning];
VGA_StartRetrace();
}
void VGA_Render_GFX_256C(Bit8u * * data) {
*data=memory+0xa0000;
vga.config.retrace=true;
VGA_StartRetrace();
}
void VGA_Render_TEXT_16(Bit8u * * data) {
*data=vga.buffer;
if (!vga.draw.resizing) VGA_DrawTEXT(vga.buffer,vga.draw.width);
vga.config.retrace=true;
if (data && !vga.draw.resizing) VGA_DrawTEXT(vga.buffer,vga.draw.width);
VGA_StartRetrace();
}
void VGA_DrawGFX2_Full(Bit8u * bitdata,Bitu pitch) {
@ -82,7 +84,7 @@ void VGA_DrawGFX2_Full(Bit8u * bitdata,Bitu pitch) {
}
bitdata+=pitch;
};
vga.config.retrace=true;
VGA_StartRetrace();
}
@ -105,7 +107,7 @@ void VGA_DrawGFX4_Full(Bit8u * bitdata,Bitu pitch) {
}
bitdata+=pitch;
};
vga.config.retrace=true;
VGA_StartRetrace();
}
/* Draw the screen using the lookup buffer */
@ -117,7 +119,7 @@ void VGA_DrawGFX16_Fast(Bit8u * bitdata,Bitu next_line) {
bitdata+=vga.draw.width+next_line;
reader+=vga.config.scan_len*16;
}
vga.config.retrace=true;
VGA_StartRetrace();
};
@ -136,7 +138,7 @@ void VGA_DrawGFX256_Full(Bit8u * bitdata,Bitu next_line) {
yreader+=vga.config.scan_len*2;
bitdata+=next_line;
};
vga.config.retrace=true;
VGA_StartRetrace();
};
void VGA_DrawGFX256_Fast(Bit8u * bitdata,Bitu pitch) {
@ -147,13 +149,13 @@ void VGA_DrawGFX256_Fast(Bit8u * bitdata,Bitu pitch) {
bitdata+=pitch;
reader+=vga.draw.width;
}
vga.config.retrace=true;
VGA_StartRetrace();
};
void VGA_DrawTEXT(Bit8u * bitdata,Bitu pitch) {
Bit8u * reader=HostMake(0xB800,0);
Bit8u * draw_start=bitdata;;
Bit8u * draw_start=bitdata;
/* Todo Blinking and high intensity colors */
for (Bitu cy=0;cy<(vga.draw.height/16);cy++) {
Bit8u * draw_char=draw_start;
@ -173,7 +175,7 @@ void VGA_DrawTEXT(Bit8u * bitdata,Bitu pitch) {
};
draw_start+=16*pitch;
};
vga.config.retrace=true;
VGA_StartRetrace();
/* Draw a cursor */
if (((Bitu)vga.draw.cursor_col*8)>=vga.draw.width) return;