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winedos: Unify Fake BIOS & VGA display mode selection information and algorithms.

This commit is contained in:
Jeremiah Flerchinger 2009-02-02 22:24:03 -07:00 committed by Alexandre Julliard
parent 1ba1ff5f16
commit 8ee698c29e
3 changed files with 275 additions and 140 deletions
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118
dlls/winedos/int10.c
View File

@ -133,90 +133,6 @@ struct _ModeInfoBlock {
#include "poppack.h"
/* VGA VESA definitions */
enum modetype {TEXT=0, GRAPHIC=1};
/*
* Wine internal information about video modes.
*/
typedef struct {
WORD Mode;
BOOL ModeType;
WORD TextCols; /* columns of text in display */
WORD TextRows; /* rows of text in display */
WORD CharWidth;
WORD CharHeight;
WORD Width; /* width of display in pixels */
WORD Height; /* height of display in pixels */
WORD Depth; /* bits per pixel */
WORD Colors; /* total available colors */
WORD ScreenPages;
BOOL Supported;
} INT10_MODE;
/*
* List of supported video modes.
*
* should be expanded to contain most or all information
* as required for SVGA VESA mode info block for VESA BIOS subsystem 1 (see _ModeInfoBlock)
* this will allow proper support for FIXME items in VGA/VESA mode configuration
*
* FIXME - verify and define support for VESA modes
* FIXME - add # bit planes, # video memory banks, & memory model
*/
static const INT10_MODE INT10_modelist[] =
{
/* VGA modes */
{0x0000, TEXT, 40, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA text mode 0 */
{0x0001, TEXT, 40, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA text mode 1 */
{0x0002, TEXT, 80, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA text mode 2 */
{0x0003, TEXT, 80, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA text mode 3 */
{0x0004, GRAPHIC, 40, 25, 8, 8, 320, 200, 2, 4, 1, TRUE}, /* VGA graphics mode 4 */
{0x0005, GRAPHIC, 40, 25, 8, 8, 320, 200, 2, 4, 1, FALSE}, /* VGA graphics mode 5 */
{0x0006, GRAPHIC, 80, 25, 8, 8, 640, 200, 1, 2, 1, FALSE}, /* VGA graphics mode 6 */
{0x0007, TEXT, 80, 25, 9, 16, 720, 400, 0, 0, 8, FALSE}, /* VGA text mode 7 - FIXME bad default address */
{0x000d, GRAPHIC, 40, 25, 8, 8, 320, 200, 4, 16, 8, FALSE}, /* VGA graphics mode 13 */
{0x000e, GRAPHIC, 80, 25, 8, 8, 640, 200, 4, 16, 4, FALSE}, /* VGA graphics mode 14 */
{0x000f, GRAPHIC, 80, 25, 8, 14, 640, 350, 0, 0, 2, FALSE}, /* VGA graphics mode 15 */
{0x0010, GRAPHIC, 80, 25, 8, 14, 640, 350, 4, 16, 2, FALSE}, /* VGA graphics mode 16 */
{0x0012, GRAPHIC, 80, 30, 8, 16, 640, 480, 1, 2, 1, FALSE}, /* VGA graphics mode 17 */
{0x0012, GRAPHIC, 80, 30, 8, 16, 640, 480, 4, 16, 1, FALSE}, /* VGA graphics mode 18 */
{0x0013, GRAPHIC, 40, 25, 8, 8, 320, 200, 8, 256, 1, TRUE}, /* VGA graphics mode 19 */
/* VESA 7-bit modes */
{0x006a, GRAPHIC, 0, 0, 0, 0, 800, 600, 4, 16, 1, TRUE}, /* VESA graphics mode, same as 0x102 */
/* VESA 15-bit modes */
{0x0100, GRAPHIC, 0, 0, 0, 0, 640, 400, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0101, GRAPHIC, 0, 0, 0, 0, 640, 480, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0102, GRAPHIC, 0, 0, 0, 0, 800, 600, 4, 16, 1, TRUE}, /* VESA graphics mode */
{0x0103, GRAPHIC, 0, 0, 0, 0, 800, 600, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0104, GRAPHIC, 0, 0, 0, 0, 1024, 768, 4, 16, 1, TRUE}, /* VESA graphics mode */
{0x0105, GRAPHIC, 0, 0, 0, 0, 1024, 768, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0106, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 4, 16, 1, TRUE}, /* VESA graphics mode */
{0x0107, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0108, TEXT, 0, 0, 0, 0, 80, 60, 0, 0, 1, TRUE}, /* VESA text mode */
{0x0109, TEXT, 0, 0, 0, 0, 132, 25, 0, 0, 1, TRUE}, /* VESA text mode */
{0x010a, TEXT, 0, 0, 0, 0, 132, 43, 0, 0, 1, TRUE}, /* VESA text mode */
{0x010b, TEXT, 0, 0, 0, 0, 132, 50, 0, 0, 1, TRUE}, /* VESA text mode */
{0x010c, TEXT, 0, 0, 0, 0, 132, 60, 0, 0, 1, TRUE}, /* VESA text mode */
/* VESA 1.2 modes */
{0x010d, GRAPHIC, 0, 0, 0, 0, 320, 200, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x010e, GRAPHIC, 0, 0, 0, 0, 320, 200, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x010f, GRAPHIC, 0, 0, 0, 0, 320, 200, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0110, GRAPHIC, 0, 0, 0, 0, 640, 480, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x0111, GRAPHIC, 0, 0, 0, 0, 640, 480, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x0112, GRAPHIC, 0, 0, 0, 0, 640, 480, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0113, GRAPHIC, 0, 0, 0, 0, 800, 600, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x0114, GRAPHIC, 0, 0, 0, 0, 800, 600, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x0115, GRAPHIC, 0, 0, 0, 0, 800, 600, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0116, GRAPHIC, 0, 0, 0, 0, 1024, 768, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x0117, GRAPHIC, 0, 0, 0, 0, 1024, 768, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x0118, GRAPHIC, 0, 0, 0, 0, 1024, 768, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0119, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x011a, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x011b, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0xffff, TEXT, 0, 0, 0, 0, 0, 0, 0, 0, 1, FALSE}
};
/* True if video mode is a vesa mode, false otherwise.
* More correct would be to use something like (x > 0xff || x == 0x6a)
* but as long as we have only the standard VGA and VESA modes this is ok too */
@ -226,30 +142,6 @@ static const INT10_MODE INT10_modelist[] =
static INT10_HEAP *INT10_GetHeap(void);
static void INT10_SetCursorPos(BIOSDATA*, unsigned, unsigned, unsigned);
/**********************************************************************
* INT10_FindMode
*/
static const INT10_MODE *INT10_FindMode( WORD mode )
{
const INT10_MODE *ptr = INT10_modelist;
/*
* Filter out flags.
*/
mode &= 0x17f;
while (ptr->Mode != 0xffff)
{
if (ptr->Mode == mode)
return ptr;
ptr++;
}
return NULL;
}
/**********************************************************************
* INT10_FillControllerInformation
*
@ -342,7 +234,7 @@ static void INT10_FillControllerInformation( BYTE *buffer )
*/
static BOOL INT10_FillModeInformation( struct _ModeInfoBlock *mib, WORD mode )
{
const INT10_MODE *ptr = INT10_FindMode( mode );
const VGA_MODE *ptr = VGA_GetModeInfo( mode );
if (!ptr)
return FALSE;
@ -754,8 +646,8 @@ INT10_HEAP *INT10_GetHeap( void )
for (i=0; TRUE; i++)
{
heap_pointer->VesaModeList[i] = INT10_modelist[i].Mode;
if (INT10_modelist[i].Mode == 0xffff)
heap_pointer->VesaModeList[i] = VGA_modelist[i].Mode;
if (VGA_modelist[i].Mode == 0xffff)
break;
}
@ -797,7 +689,7 @@ INT10_HEAP *INT10_GetHeap( void )
*/
static BOOL INT10_SetVideoMode( BIOSDATA *data, WORD mode )
{
const INT10_MODE *ptr = INT10_FindMode( mode );
const VGA_MODE *ptr = VGA_GetModeInfo( mode );
INT10_HEAP *heap = INT10_GetHeap();
BOOL clearScreen = TRUE;
@ -858,7 +750,7 @@ static BOOL INT10_SetVideoMode( BIOSDATA *data, WORD mode )
ptr->Width, ptr->Height, ptr->Depth,
clearScreen ? "cleared" : "preserved" );
if (VGA_SetMode( ptr->Width, ptr->Height, ptr->Depth ))
if ( VGA_SetMode(mode) )
return FALSE;
}

268
dlls/winedos/vga.c
View File

@ -144,6 +144,73 @@ static BYTE vga_index_3ce;
static BYTE vga_index_3d4;
static BOOL vga_address_3c0 = TRUE;
/*
* List of supported video modes.
*
* should be expanded to contain most or all information
* as required for SVGA VESA mode info block for VESA BIOS subsystem 1 (see _ModeInfoBlock)
* this will allow proper support for FIXME items in VGA/VESA mode configuration
*
* FIXME - verify and define support for VESA modes
* FIXME - add # bit planes, # video memory banks, & memory model
*/
static WORD VGA_CurrentMode;
static BOOL CGA_ColorComposite = FALSE; /* behave like composite monitor */
const VGA_MODE VGA_modelist[] =
{
/* Mode, ModeType, TextCols, TextRows, CharWidth, CharHeight, Width, Height, Depth, Colors, ScreenPages, Supported*/
/* VGA modes */
{0x0000, TEXT, 40, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA/CGA text mode 0 */
{0x0001, TEXT, 40, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA/CGA text mode 1 */
{0x0002, TEXT, 80, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA/CGA text mode 2 */
{0x0003, TEXT, 80, 25, 9, 16, 360, 400, 0, 16, 8, TRUE}, /* VGA/CGA text mode 3 */
{0x0004, GRAPHIC, 40, 25, 8, 8, 320, 200, 2, 4, 1, TRUE}, /* VGA/CGA graphics mode 4 */
{0x0005, GRAPHIC, 40, 25, 8, 8, 320, 200, 2, 4, 1, TRUE}, /* VGA/CGA graphics mode 5 */
{0x0006, GRAPHIC, 80, 25, 8, 8, 640, 200, 1, 2, 1, TRUE}, /* VGA/CGA graphics mode 6 */
{0x0007, TEXT, 80, 25, 9, 16, 720, 400, 0, 0, 8, FALSE}, /* VGA text mode 7 - FIXME bad default address */
{0x000d, GRAPHIC, 40, 25, 8, 8, 320, 200, 4, 16, 8, FALSE}, /* VGA graphics mode 13 */
{0x000e, GRAPHIC, 80, 25, 8, 8, 640, 200, 4, 16, 4, FALSE}, /* VGA graphics mode 14 */
{0x000f, GRAPHIC, 80, 25, 8, 14, 640, 350, 0, 0, 2, FALSE}, /* VGA graphics mode 15 */
{0x0010, GRAPHIC, 80, 25, 8, 14, 640, 350, 4, 16, 2, FALSE}, /* VGA graphics mode 16 */
{0x0012, GRAPHIC, 80, 30, 8, 16, 640, 480, 1, 2, 1, FALSE}, /* VGA graphics mode 17 */
{0x0012, GRAPHIC, 80, 30, 8, 16, 640, 480, 4, 16, 1, FALSE}, /* VGA graphics mode 18 */
{0x0013, GRAPHIC, 40, 25, 8, 8, 320, 200, 8, 256, 1, TRUE}, /* VGA graphics mode 19 */
/* VESA 7-bit modes */
{0x006a, GRAPHIC, 0, 0, 0, 0, 800, 600, 4, 16, 1, TRUE}, /* VESA graphics mode, same as 0x102 */
/* VESA 15-bit modes */
{0x0100, GRAPHIC, 0, 0, 0, 0, 640, 400, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0101, GRAPHIC, 0, 0, 0, 0, 640, 480, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0102, GRAPHIC, 0, 0, 0, 0, 800, 600, 4, 16, 1, TRUE}, /* VESA graphics mode */
{0x0103, GRAPHIC, 0, 0, 0, 0, 800, 600, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0104, GRAPHIC, 0, 0, 0, 0, 1024, 768, 4, 16, 1, TRUE}, /* VESA graphics mode */
{0x0105, GRAPHIC, 0, 0, 0, 0, 1024, 768, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0106, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 4, 16, 1, TRUE}, /* VESA graphics mode */
{0x0107, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 8, 256, 1, TRUE}, /* VESA graphics mode */
{0x0108, TEXT, 0, 0, 0, 0, 80, 60, 0, 0, 1, TRUE}, /* VESA text mode */
{0x0109, TEXT, 0, 0, 0, 0, 132, 25, 0, 0, 1, TRUE}, /* VESA text mode */
{0x010a, TEXT, 0, 0, 0, 0, 132, 43, 0, 0, 1, TRUE}, /* VESA text mode */
{0x010b, TEXT, 0, 0, 0, 0, 132, 50, 0, 0, 1, TRUE}, /* VESA text mode */
{0x010c, TEXT, 0, 0, 0, 0, 132, 60, 0, 0, 1, TRUE}, /* VESA text mode */
/* VESA 1.2 modes */
{0x010d, GRAPHIC, 0, 0, 0, 0, 320, 200, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x010e, GRAPHIC, 0, 0, 0, 0, 320, 200, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x010f, GRAPHIC, 0, 0, 0, 0, 320, 200, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0110, GRAPHIC, 0, 0, 0, 0, 640, 480, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x0111, GRAPHIC, 0, 0, 0, 0, 640, 480, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x0112, GRAPHIC, 0, 0, 0, 0, 640, 480, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0113, GRAPHIC, 0, 0, 0, 0, 800, 600, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x0114, GRAPHIC, 0, 0, 0, 0, 800, 600, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x0115, GRAPHIC, 0, 0, 0, 0, 800, 600, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0116, GRAPHIC, 0, 0, 0, 0, 1024, 768, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x0117, GRAPHIC, 0, 0, 0, 0, 1024, 768, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x0118, GRAPHIC, 0, 0, 0, 0, 1024, 768, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0x0119, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 15, 0, 1, TRUE}, /* VESA graphics mode, 32K colors */
{0x011a, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 16, 0, 1, TRUE}, /* VESA graphics mode, 64K colors */
{0x011b, GRAPHIC, 0, 0, 0, 0, 1280, 1024, 24, 0, 1, TRUE}, /* VESA graphics mode, 16.8 Million colors */
{0xffff, TEXT, 0, 0, 0, 0, 0, 0, 0, 0, 1, FALSE}
};
/*
* This mutex is used to protect VGA state during asynchronous
* screen updates (see VGA_Poll). It makes sure that VGA state changes
@ -216,14 +283,13 @@ static PALETTEENTRY cga_palette2_bright[] = {
};
/*
* VGA Palette Registers, in actual 18 bit color
* VGA Palette Registers, in actual 16 bit color
* port 3C0H - 6 bit rgbRGB format
*
* 16 color accesses will use these pointers and insert
* entries from the 64-color palette (mode 18) into the default
* palette. --Robert 'Admiral' Coeyman
*/
static char vga_16_palette[17]={
0x00, /* 0 - Black */
0x01, /* 1 - Blue */
@ -795,18 +861,87 @@ static void WINAPI VGA_DoSetMode(ULONG_PTR arg)
return;
}
int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
/**********************************************************************\
* VGA_GetModeInfo
*
* Returns mode information, given mode number
\**********************************************************************/
const VGA_MODE *VGA_GetModeInfo(WORD mode)
{
const VGA_MODE *ModeInfo = VGA_modelist;
/*
* Filter out flags.
*/
mode &= 0x17f;
while (ModeInfo->Mode != 0xffff)
{
if (ModeInfo->Mode == mode)
return ModeInfo;
ModeInfo++;
}
return NULL;
}
const VGA_MODE *VGA_GetModeInfoList(void)
{
return VGA_modelist;
}
int VGA_SetMode(WORD mode)
{
const VGA_MODE *ModeInfo;
/* get info on VGA mode & set appropriately */
VGA_CurrentMode = mode;
ModeInfo = VGA_GetModeInfo(VGA_CurrentMode);
/* check if mode is supported */
if (ModeInfo->Supported)
{
FIXME("Setting VGA mode %i - Supported mode - Improve reporting of missing capabilities for modes & modetypes. \n", mode);
}
else
{
FIXME("Setting VGA mode %i - Unsupported mode - Will doubtfully work at all, but we'll try anyways. \n", mode);
}
/* set up graphic or text display */
if (ModeInfo->ModeType == TEXT)
{
VGA_SetAlphaMode(ModeInfo->TextCols, ModeInfo->TextRows);
}
else
{
return VGA_SetGraphicMode(mode);
}
return 0; /* assume all good & return zero */
}
int VGA_SetGraphicMode(WORD mode)
{
ModeSet par;
int newSize;
vga_fb_width = Xres;
vga_fb_height = Yres;
vga_fb_depth = Depth;
/* get info on VGA mode & set appropriately */
const VGA_MODE *ModeInfo = VGA_GetModeInfo(VGA_CurrentMode);
/* check if we're assuming composite display */
if ((mode == 6) && (CGA_ColorComposite))
{
vga_fb_width = (ModeInfo->Width / 4);
vga_fb_height = ModeInfo->Height;
vga_fb_depth = (ModeInfo->Depth * 4);
}
else
{
vga_fb_width = ModeInfo->Width;
vga_fb_height = ModeInfo->Height;
vga_fb_depth = ModeInfo->Depth;
}
vga_fb_offset = 0;
vga_fb_pitch = Xres * ((Depth + 7) / 8);
vga_fb_pitch = vga_fb_width * ((vga_fb_depth + 7) / 8);
newSize = Xres * Yres * ((Depth + 7) / 8);
newSize = vga_fb_width * vga_fb_height * ((vga_fb_depth + 7) / 8);
if(newSize < 256 * 1024)
newSize = 256 * 1024;
@ -816,9 +951,9 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
vga_fb_size = newSize;
}
if(Xres >= 640 || Yres >= 480) {
par.Xres = Xres;
par.Yres = Yres;
if(vga_fb_width >= 640 || vga_fb_height >= 480) {
par.Xres = vga_fb_width;
par.Yres = vga_fb_height;
} else {
par.Xres = 640;
par.Yres = 480;
@ -836,7 +971,7 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
{
vga_fb_window_data = CGA_WINDOW_START;
vga_fb_window_size = CGA_WINDOW_SIZE;
if(Depth == 2)
if(vga_fb_depth == 2)
{
/* Select default 2 bit CGA palette */
vga_fb_palette = cga_palette1;
@ -859,7 +994,7 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
/* Reset window start */
VGA_SetWindowStart(0);
par.Depth = (Depth < 8) ? 8 : Depth;
par.Depth = (vga_fb_depth < 8) ? 8 : vga_fb_depth;
MZ_RunInThread(VGA_DoSetMode, (ULONG_PTR)&par);
return par.ret;
@ -1267,10 +1402,18 @@ void VGA_GetCursorPos(unsigned*X,unsigned*Y)
static void VGA_PutCharAt(unsigned x, unsigned y, BYTE ascii, int attr)
{
char *dat = VGA_AlphaBuffer() + ((vga_text_width * y + x) * 2);
dat[0] = ascii;
if (attr>=0)
dat[1] = attr;
const VGA_MODE *ModeInfo = VGA_GetModeInfo(VGA_CurrentMode);
if ( ModeInfo->ModeType == TEXT )
{
char *dat = VGA_AlphaBuffer() + ((vga_text_width * y + x) * 2);
dat[0] = ascii;
if (attr>=0)
dat[1] = attr;
}
else
{
FIXME("Write %c at (%i,%i) - not yet supported in graphic modes.\n", (char)ascii, x, y);
}
}
void VGA_WriteChars(unsigned X,unsigned Y,unsigned ch,int attr,int count)
@ -1441,7 +1584,7 @@ static void VGA_Poll_Graphics(void)
VGA_SyncWindow( TRUE );
/*
* CGA framebuffer (160x200)
* CGA framebuffer (160x200) - CGA_ColorComposite, special subtype of mode 6
* This buffer is encoded as following:
* - 4 bit pr. pixel, 2 pixels per byte
* - 80 bytes per row
@ -1511,6 +1654,9 @@ static void VGA_Poll_Graphics(void)
surf[X*2+Pitch] = value;
surf[X*2+Pitch+1] = value;
}
/*
* Linear Buffer, including mode 19
*/
else
for (Y=0; Y<vga_fb_height; Y++,surf+=Pitch,dat+=vga_fb_pitch)
memcpy(surf, dat, vga_fb_width * bpp);
@ -1656,19 +1802,89 @@ 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;
/* Mode control register (CGA) */
/* Mode control register - 6845 Motorola (MDA) */
case 0x3b8:
/* Mode control register - 6845 Motorola (CGA) */
case 0x3d8:
/*
* xxxxxxx1 = 80x25 text
* xxxxxxx0 = 40x25 text (default)
* xxxxxx1x = graphics (320x200)
* xxxxxx0x = text
* xxxxx1xx = B/W
* xxxxx0xx = color
* xxxx1xxx = enable video signal
* xxx1xxxx = 640x200 B/W graphics
* xx1xxxxx = blink
*/
/* Detect 160x200, 16 color mode (composite) */
if((val & 0x02) && (val & 0x10))
/* check bits 6 and 7 */
if (val & 0xC0)
{
/* Switch to 160x200x4 composite mode */
VGA_SetMode(160, 200, 4);
FIXME("Unsupported value, VGA register 0x3d8: 0x%02x - bits 7 and 6 not supported. \n", val);
}
/* check bits 5 - blink on */
if (val & 0x20)
{
FIXME("Unsupported value, VGA register 0x3d8: 0x%02x (bit 5) - blink is not supported. \n", val);
}
/* Enable Video Signal (bit 3) - Set the enabled bit */
VGA_SetEnabled((val & 0x08) && 1);
/* xxx1x010 - Detect 160x200, 16 color mode (CGA composite) */
if( (val & 0x17) == 0x12 )
{
/* Switch to 160x200x4 composite mode - special case of mode 6 */
CGA_ColorComposite = TRUE;
VGA_SetMode(6);
}
else
{
/* turn off composite colors otherwise, including 320x200 (80x200 16 color) */
CGA_ColorComposite = FALSE;
}
/* xxx0x100 - Detect VGA mode 0 */
if( (val & 0x17) == 0x04 )
{
VGA_SetMode(0);
}
/* xxx0x000 - Detect VGA mode 1 */
else if( (val & 0x17) == 0x00 )
{
VGA_SetMode(1);
}
/* xxx0x101 - Detect VGA mode 2 */
else if( (val & 0x17) == 0x05 )
{
VGA_SetMode(2);
}
/* xxx0x001 - Detect VGA mode 3 */
else if( (val & 0x17) == 0x01 )
{
VGA_SetMode(3);
}
/* xxx0x010 - Detect VGA mode 4 */
else if( (val & 0x17) == 0x02 )
{
VGA_SetMode(4);
}
/* xxx0x110 - Detect VGA mode 5 */
else if( (val & 0x17) == 0x06 )
{
VGA_SetMode(5);
}
/* xxx1x110 - Detect VGA mode 6 */
else if( (val & 0x17) == 0x16 )
{
VGA_SetMode(6);
}
/* unsupported mode */
else
{
FIXME("Unsupported value, VGA register 0x3d8: 0x%02x - unrecognized MDA/CGA mode \n", val); /* Set the enabled bit */
}
/* Set the enabled bit */
VGA_SetEnabled((val & 0x08) && 1);
break;
/* Colour control register (CGA) */

29
dlls/winedos/vga.h
View File

@ -27,8 +27,35 @@
#include "winbase.h"
#include "wingdi.h"
/*
* VGA VESA definitions
*/
/* mode descriptor */
enum modetype {TEXT=0, GRAPHIC=1};
/* Wine internal information about video modes */
typedef struct {
WORD Mode;
BOOL ModeType;
WORD TextCols; /* columns of text in display */
WORD TextRows; /* rows of text in display */
WORD CharWidth;
WORD CharHeight;
WORD Width; /* width of display in pixels */
WORD Height; /* height of display in pixels */
WORD Depth; /* bits per pixel */
WORD Colors; /* total available colors */
WORD ScreenPages;
BOOL Supported;
} VGA_MODE;
extern const VGA_MODE VGA_modelist[];
/* all vga modes */
const VGA_MODE *VGA_GetModeInfo(WORD mode);
int VGA_SetMode(WORD mode);
/* graphics mode */
int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth);
int VGA_SetGraphicMode(WORD mode);
int VGA_GetMode(unsigned*Height,unsigned*Width,unsigned*Depth);
void VGA_SetPalette(PALETTEENTRY*pal,int start,int len);
void VGA_SetColor16(int reg,int color);