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winedos: Implement int10 CGA palette control.

This commit is contained in:
Peter Dons Tychsen 2008-11-10 01:55:59 +01:00 committed by Alexandre Julliard
parent 49ad04c1f7
commit db0a4b9c9b
3 changed files with 101 additions and 29 deletions
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22
dlls/winedos/int10.c
View File

@ -1242,11 +1242,27 @@ void WINAPI DOSVM_Int10Handler( CONTEXT86 *context )
apparently, the foreground or attribute of the background
with this call, so we should check first to see what the
foreground already is... FIXME */
FIXME("Set Background/Border Color: %d/%d\n",
BH_reg(context), BL_reg(context));
/* For CGA modes, background color change is the same as writing
to I/O address 0x3d9 bit 4 */
if(data->VideoMode >= 4 && data->VideoMode <= 6)
{
VGA_SetBright((BL_reg(context) & 0x10) && 1);
VGA_UpdatePalette();
}
else FIXME("Set Background/Border Color: %d/%d\n",
BH_reg(context), BL_reg(context));
break;
case 0x01: /* SET PALETTE */
FIXME("Set Palette - Not Supported\n");
/* For CGA modes, palette color change is the same as writing
to I/O address 0x3d9 bit 5 */
if(data->VideoMode >= 4 && data->VideoMode <= 6)
{
VGA_SetPaletteIndex(BL_reg(context) & 1);
VGA_UpdatePalette();
}
else FIXME("Set Palette - Not Supported: %02X\n", BL_reg(context));
break;
default:
FIXME("INT 10 AH = 0x0b BH = 0x%x - Unknown\n",

105
dlls/winedos/vga.c
View File

@ -100,6 +100,8 @@ static int vga_fb_window = 0;
static int vga_fb_window_size;
static char *vga_fb_window_data;
static PALETTEENTRY *vga_fb_palette;
static unsigned vga_fb_palette_index;
static BOOL vga_fb_bright;
/*
* VGA text mode data.
@ -196,7 +198,7 @@ static PALETTEENTRY cga_palette2[] = {
{0x00, 0x00, 0x00}, /* 0 - Black */
{0x00, 0xAA, 0x00}, /* 1 - Green */
{0xAA, 0x00, 0x00}, /* 2 - Red */
{0xAA, 0x55, 0xFF} /* 3 - Brown */
{0xAA, 0x55, 0x00} /* 3 - Brown */
};
/*
@ -832,6 +834,8 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
vga_fb_window_data = CGA_WINDOW_START;
vga_fb_window_size = CGA_WINDOW_SIZE;
vga_fb_palette = cga_palette1;
vga_fb_palette_index = 0;
vga_fb_bright = 0;
}
/* Clean the HW buffer */
@ -1012,6 +1016,73 @@ void VGA_ShowMouse( BOOL show )
MZ_RunInThread( VGA_DoShowMouse, (ULONG_PTR)show );
}
/**********************************************************************
* VGA_UpdatePalette
*
* Update the current palette
*
* Note: When updating the current CGA palette, palette index 0
* refers to palette2, and index 1 is palette1 (default palette)
*/
void VGA_UpdatePalette(void)
{
/* Figure out which palette is used now */
if(vga_fb_bright == TRUE)
{
if(vga_fb_palette_index == 0)
{
vga_fb_palette = cga_palette2_bright;
}
else if(vga_fb_palette_index == 1)
{
vga_fb_palette = cga_palette1_bright;
}
}
else
{
if(vga_fb_palette_index == 0)
{
vga_fb_palette = cga_palette2;
}
else if(vga_fb_palette_index == 1)
{
vga_fb_palette = cga_palette1;
}
}
/* Now update the palette */
VGA_SetPalette(vga_fb_palette,0,4);
}
/**********************************************************************
* VGA_SetBright
*
* Select if using a "bright" palette or not.
* This is a property of the CGA controller
*/
void VGA_SetBright(BOOL bright)
{
TRACE("%i\n", bright);
/* Remember the "bright" value used by the CGA controller */
vga_fb_bright = bright;
}
/**********************************************************************
* VGA_SetPaletteIndex
*
* Select the index of the palette which is currently in use
* This is a property of the CGA controller
*/
void VGA_SetPaletteIndex(unsigned index)
{
TRACE("%i\n", index);
/* Remember the palette index, which is only used by CGA for now */
vga_fb_palette_index = index;
}
/*** TEXT MODE ***/
/* prepare the text mode video memory copy that is used to only
@ -1505,32 +1576,14 @@ void VGA_ioport_out( WORD port, BYTE 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;
}
}
/* Set bright */
VGA_SetBright((val & 0x10) && 1);
/* Check for "deselect palette1" */
if(val & 0x20)
{
if(vga_fb_palette == cga_palette1)
{
VGA_SetPalette(cga_palette2,0,4);
vga_fb_palette = cga_palette2;
}
}
/* Set palette index */
VGA_SetPaletteIndex((val & 0x20) && 1);
/* Now update the palette */
VGA_UpdatePalette();
break;
default:
FIXME("Unsupported VGA register: 0x%04x (value 0x%02x)\n", port, val);

3
dlls/winedos/vga.h
View File

@ -39,6 +39,9 @@ void VGA_SetQuadPalette(RGBQUAD*color,int start,int len);
void VGA_SetWindowStart(int start);
int VGA_GetWindowStart(void);
void VGA_ShowMouse(BOOL show);
void VGA_UpdatePalette(void);
void VGA_SetPaletteIndex(unsigned index);
void VGA_SetBright(BOOL bright);
/* text mode */
void VGA_InitAlphaMode(unsigned*Xres,unsigned*Yres);