Peter Dons Tychsen : winedos: Implement int10 CGA palette control.
Alexandre Julliard
julliard at winehq.org
Mon Nov 10 07:44:02 CST 2008
Module: wine
Branch: master
Commit: db0a4b9c9b6fcfc5b7a5aef36ad970fcb011d39b
URL: http://source.winehq.org/git/wine.git/?a=commit;h=db0a4b9c9b6fcfc5b7a5aef36ad970fcb011d39b
Author: Peter Dons Tychsen <donpedro at tdcadsl.dk>
Date: Mon Nov 10 01:55:59 2008 +0100
winedos: Implement int10 CGA palette control.
---
dlls/winedos/int10.c | 22 +++++++++-
dlls/winedos/vga.c | 105 +++++++++++++++++++++++++++++++++++++------------
dlls/winedos/vga.h | 3 +
3 files changed, 101 insertions(+), 29 deletions(-)
diff --git a/dlls/winedos/int10.c b/dlls/winedos/int10.c
index c1ec98b..4132f58 100644
--- a/dlls/winedos/int10.c
+++ b/dlls/winedos/int10.c
@@ -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",
diff --git a/dlls/winedos/vga.c b/dlls/winedos/vga.c
index bc8bc85..f255994 100644
--- a/dlls/winedos/vga.c
+++ b/dlls/winedos/vga.c
@@ -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);
diff --git a/dlls/winedos/vga.h b/dlls/winedos/vga.h
index e417388..60444a9 100644
--- a/dlls/winedos/vga.h
+++ b/dlls/winedos/vga.h
@@ -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);
More information about the wine-cvs
mailing list