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New Video bios code:

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Support for VESA 1.2
Support for text mode font changes
Support for setting CGA colors
Support for setting text mode cursor shape
Support for 16 color palette group changes
Some initial tandy mode support
Some fixes with graphics mode text output
Some cleanups


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1060
This commit is contained in:
Sjoerd van der Berg 2003-06-15 19:37:57 +00:00
parent 1b4b7cb77b
commit 155cbb9f36
8 changed files with 921 additions and 586 deletions
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133
src/ints/int10.h
View file

@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../hardware/vga.h"
#define BIOSMEM_SEG 0x40
#define BIOSMEM_INITIAL_MODE 0x10
@ -83,99 +85,64 @@
#define VGAMEM_CTEXT 0xB800
#define VGAMEM_MTEXT 0xB000
/*
*
* Tables of default values for each mode
*
*/
#define MODE_MAX 0x13
#define TEXT 0x00
#define GRAPH 0x01
#define CTEXT 0x00
#define MTEXT 0x01
#define CGA 0x02
#define PLANAR1 0x03
#define PLANAR2 0x04
#define PLANAR4 0x05
#define LINEAR8 0x06
#define CGA2 0x07
// for Tandy
#define TANDY16 0x0A
#define LINEAR15 0x10
#define LINEAR16 0x11
#define LINEAR24 0x12
#define LINEAR32 0x13
#define SCREEN_SIZE(x,y) (((x*y*2)|0x00ff)+1)
#define SCREEN_MEM_START(x,y,p) ((((x*y*2)|0x00ff)+1)*p)
#define SCREEN_IO_START(x,y,p) ((((x*y)|0x00ff)+1)*p)
#define BIOS_NCOLS Bit16u ncols=real_readw(BIOSMEM_SEG,BIOSMEM_NB_COLS);
#define BIOS_NROWS Bit16u nrows=real_readb(BIOSMEM_SEG,BIOSMEM_NB_ROWS)+1;
extern Bit8u int10_font_08[256 * 8];
extern Bit8u int10_font_14[256 * 14];
extern Bit8u int10_font_16[256 * 16];
struct VideoModeBlock {
Bitu mode;
VGAModes type;
Bitu swidth, sheight;
Bitu twidth, theight;
Bitu cwidth, cheight;
Bitu ptotal,pstart,plength;
typedef struct
{Bit8u svgamode;
Bit16u vesamode;
Bit8u type; /* TEXT, GRAPH */
Bit8u memmodel; /* CTEXT,MTEXT,CGA,PL1,PL2,PL4,P8,P15,P16,P24,P32 */
Bit8u nbpages;
Bit8u pixbits;
Bit16u swidth, sheight;
Bit16u twidth, theight;
Bit16u cwidth, cheight;
Bit16u sstart;
Bit16u slength;
Bit8u miscreg;
Bit8u pelmask;
Bit8u crtcmodel;
Bit8u actlmodel;
Bit8u grdcmodel;
Bit8u sequmodel;
Bit8u dacmodel; /* 0 1 2 3 */
} VGAMODES;
extern VGAMODES vga_modes[MODE_MAX+1];
Bitu htotal,vtotal;
Bitu hdispend,vdispend;
Bitu special;
};
extern VideoModeBlock ModeList[];
extern VideoModeBlock * CurMode;
typedef struct {
RealPt font_8_first;
RealPt font_8_second;
RealPt font_14;
RealPt font_16;
RealPt static_state;
} VGAROMAREA;
extern VGAROMAREA int10_romarea;
struct {
RealPt font_8_first;
RealPt font_8_second;
RealPt font_14;
RealPt font_16;
RealPt static_state;
RealPt oemstring;
RealPt vesa_modes;
Bitu used;
} rom;
} Int10Data;
#define BIOS_NCOLS Bit16u ncols=real_readw(BIOSMEM_SEG,BIOSMEM_NB_COLS);
#define BIOS_NROWS Bit16u nrows=real_readb(BIOSMEM_SEG,BIOSMEM_NB_ROWS)+1;
extern Int10Data int10;
inline Bit8u CURSOR_POS_COL(Bit8u page) {
INLINE Bit8u CURSOR_POS_COL(Bit8u page) {
return real_readb(BIOSMEM_SEG,BIOSMEM_CURSOR_POS+page*2);
}
inline Bit8u CURSOR_POS_ROW(Bit8u page) {
INLINE Bit8u CURSOR_POS_ROW(Bit8u page) {
return real_readb(BIOSMEM_SEG,BIOSMEM_CURSOR_POS+page*2+1);
}
void INT10_SetVideoMode(Bit8u mode);
bool INT10_SetVideoMode(Bitu mode);
void INT10_ScrollWindow(Bit8u rul,Bit8u cul,Bit8u rlr,Bit8u clr,Bit8s nlines,Bit8u attr,Bit8u page);
void INT10_SetActivePage(Bit8u page);
void INT10_GetFuncStateInformation(PhysPt save);
void INT10_SetCursorShape(Bit8u first,Bit8u last);
void INT10_SetCursorPos(Bit8u row,Bit8u col,Bit8u page);
void INT10_TeletypeOutput(Bit8u chr,Bit8u attr,bool showattr, Bit8u page);
void INT10_ReadCharAttr(Bit16u * result,Bit8u page);
@ -185,9 +152,13 @@ void INT10_WriteString(Bit8u row,Bit8u col,Bit8u flag,Bit8u attr,PhysPt string,B
/* Graphics Stuff */
void INT10_PutPixel(Bit16u x,Bit16u y,Bit8u page,Bit8u color);
void INT10_GetPixel(Bit16u x,Bit16u y,Bit8u page,Bit8u * color);
VGAMODES * GetCurrentMode(void);
/* Font Stuff */
void INT10_LoadFont(PhysPt font,bool reload,Bitu count,Bitu offset,Bitu map,Bitu height);
/* Palette Group */
void INT10_SetBackgroundBorder(Bit8u val);
void INT10_SetColorSelect(Bit8u val);
void INT10_SetSinglePaletteRegister(Bit8u reg,Bit8u val);
void INT10_SetOverscanBorderColor(Bit8u val);
void INT10_SetAllPaletteRegisters(PhysPt data);
@ -199,17 +170,27 @@ void INT10_SetSingleDacRegister(Bit8u index,Bit8u red,Bit8u green,Bit8u blue);
void INT10_GetSingleDacRegister(Bit8u index,Bit8u * red,Bit8u * green,Bit8u * blue);
void INT10_SetDACBlock(Bit16u index,Bit16u count,PhysPt data);
void INT10_GetDACBlock(Bit16u index,Bit16u count,PhysPt data);
void INT10_SelectDACPage(Bit8u function,Bit8u mode);
void INT10_SetPelMask(Bit8u mask);
void INT10_GetPelMask(Bit8u & mask);
/* Mouse pointer */
void INT10_SetGfxControllerToDefault(void);
/* Vesa Group */
Bit8u VESA_GetSVGAInformation(Bit16u seg,Bit16u off);
Bit8u VESA_GetSVGAModeInformation(Bit16u mode,Bit16u seg,Bit16u off);
Bit8u VESA_SetSVGAMode(Bit16u mode);
Bit8u VESA_GetSVGAMode(Bit16u & mode);
Bit8u VESA_SetCPUWindow(Bit8u window,Bit16u address);
Bit8u VESA_GetCPUWindow(Bit8u window,Bit16u & address);
Bit8u VESA_ScanLineLength(Bit8u subcall,Bit16u & bytes,Bit16u & pixels,Bit16u & lines);
Bit8u VESA_SetDisplayStart(Bit16u x,Bit16u y);
Bit8u VESA_GetDisplayStart(Bit16u & x,Bit16u & y);
Bit8u VESA_SetPalette(PhysPt data,Bitu index,Bitu count);
Bit8u VESA_GetPalette(PhysPt data,Bitu index,Bitu count);
/* Sup Groups */
void INT10_SetupRomMemory(void);
void INT10_SetupVESA(void);
struct Int10Data {
Bit8u mode;
VGAMODES * entry;
};
extern Int10Data int10;