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winedos: Add support for the Color Control Register (CGA).

This commit is contained in:
Peter Dons Tychsen 2008-11-09 18:29:41 +01:00 committed by Alexandre Julliard
parent f397252071
commit 49ad04c1f7
1 changed files with 70 additions and 10 deletions
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80
dlls/winedos/vga.c
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@ -99,6 +99,7 @@ static char *vga_fb_data = 0;
static int vga_fb_window = 0;
static int vga_fb_window_size;
static char *vga_fb_window_data;
static PALETTEENTRY *vga_fb_palette;
/*
* VGA text mode data.
@ -171,9 +172,43 @@ static HWND vga_hwnd = NULL;
*/
static PALETTEENTRY cga_palette1[] = {
{0x00, 0x00, 0x00}, /* 0 - Black */
{0x00, 0x80, 0x80}, /* 1 - Cyan */
{0x80, 0x00, 0x80}, /* 2 - Magenta */
{0xFF, 0xFF, 0xFF} /* 3 - White */
{0x00, 0xAA, 0xAA}, /* 1 - Cyan */
{0xAA, 0x00, 0xAA}, /* 2 - Magenta */
{0xAA, 0xAA, 0xAA} /* 3 - White */
};
/*
* CGA palette 1 in the bright variant
* intensities, when signalled to do so
* in register 0x3d9
*/
static PALETTEENTRY cga_palette1_bright[] = {
{0x00, 0x00, 0x00}, /* 0 - Black */
{0x55, 0xFF, 0xFF}, /* 1 - Light cyan */
{0xFF, 0x55, 0xFF}, /* 2 - Light magenta */
{0xFF, 0xFF, 0xFF}, /* 3 - Bright White */
};
/*
* CGA palette 2
*/
static PALETTEENTRY cga_palette2[] = {
{0x00, 0x00, 0x00}, /* 0 - Black */
{0x00, 0xAA, 0x00}, /* 1 - Green */
{0xAA, 0x00, 0x00}, /* 2 - Red */
{0xAA, 0x55, 0xFF} /* 3 - Brown */
};
/*
* CGA palette 2 in the bright variant
* intensities, when signalled to do so
* in register 0x3d9
*/
static PALETTEENTRY cga_palette2_bright[] = {
{0x00, 0x00, 0x00}, /* 0 - Black */
{0x55, 0xFF, 0x55}, /* 1 - Light green */
{0xFF, 0x55, 0x55}, /* 2 - Light red */
{0xFF, 0xFF, 0x55}, /* 3 - Yellow */
};
/*
@ -731,12 +766,7 @@ static void WINAPI VGA_DoSetMode(ULONG_PTR arg)
return;
}
if(vga_fb_depth == 2){
res=IDirectDrawPalette_SetEntries(lpddpal,0,0,4,cga_palette1);
}
else{
res=IDirectDrawPalette_SetEntries(lpddpal,0,0,256,vga_def_palette);
}
res=IDirectDrawPalette_SetEntries(lpddpal,0,0,4,vga_fb_palette);
if (res != S_OK) {
ERR("Could not set default palette entries (res = 0x%x)\n", res);
}
@ -795,11 +825,13 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
{
vga_fb_window_data = VGA_WINDOW_START;
vga_fb_window_size = VGA_WINDOW_SIZE;
vga_fb_palette = vga_def_palette;
}
else
{
vga_fb_window_data = CGA_WINDOW_START;
vga_fb_window_size = CGA_WINDOW_SIZE;
vga_fb_palette = cga_palette1;
}
/* Clean the HW buffer */
@ -980,7 +1012,6 @@ void VGA_ShowMouse( BOOL show )
MZ_RunInThread( VGA_DoShowMouse, (ULONG_PTR)show );
}
/*** TEXT MODE ***/
/* prepare the text mode video memory copy that is used to only
@ -1472,6 +1503,35 @@ void VGA_ioport_out( WORD port, BYTE val )
FIXME("Unsupported index, VGA crt controller register 0x3b4/0x3d4: 0x%02x (value 0x%02x)\n",
vga_index_3d4, val);
break;
/* Colour control register (CGA) */
case 0x3d9:
/* Check for "switch to bright" */
if(val & 0x10)
{
if(vga_fb_palette == cga_palette1)
{
/* Switch to palette 1 bright version */
VGA_SetPalette(cga_palette1_bright,0,4);
vga_fb_palette = cga_palette1_bright;
}
else if(vga_fb_palette == cga_palette2)
{
/* Switch to palette 2 bright version */
VGA_SetPalette(cga_palette2_bright,0,4);
vga_fb_palette = cga_palette2_bright;
}
}
/* Check for "deselect palette1" */
if(val & 0x20)
{
if(vga_fb_palette == cga_palette1)
{
VGA_SetPalette(cga_palette2,0,4);
vga_fb_palette = cga_palette2;
}
}
break;
default:
FIXME("Unsupported VGA register: 0x%04x (value 0x%02x)\n", port, val);
}