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DOSBox-X
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DOSBox-X
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00001 /* 00002 * Copyright (C) 2002-2020 The DOSBox Team 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License along 00015 * with this program; if not, write to the Free Software Foundation, Inc., 00016 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00017 */ 00018 00019 00020 #include "vga.h" 00021 00022 extern uint32_t S3_LFB_BASE; 00023 00024 #define BIOSMEM_SEG 0x40u 00025 00026 #define BIOSMEM_INITIAL_MODE 0x10u 00027 #define BIOSMEM_CURRENT_MODE 0x49u 00028 #define BIOSMEM_NB_COLS 0x4Au 00029 #define BIOSMEM_PAGE_SIZE 0x4Cu 00030 #define BIOSMEM_CURRENT_START 0x4Eu 00031 #define BIOSMEM_CURSOR_POS 0x50u 00032 #define BIOSMEM_CURSOR_TYPE 0x60u 00033 #define BIOSMEM_CURRENT_PAGE 0x62u 00034 #define BIOSMEM_CRTC_ADDRESS 0x63u 00035 #define BIOSMEM_CURRENT_MSR 0x65u 00036 #define BIOSMEM_CURRENT_PAL 0x66u 00037 #define BIOSMEM_NB_ROWS 0x84u 00038 #define BIOSMEM_CHAR_HEIGHT 0x85u 00039 #define BIOSMEM_VIDEO_CTL 0x87u 00040 #define BIOSMEM_SWITCHES 0x88u 00041 #define BIOSMEM_MODESET_CTL 0x89u 00042 #define BIOSMEM_DCC_INDEX 0x8Au 00043 #define BIOSMEM_CRTCPU_PAGE 0x8Au 00044 #define BIOSMEM_VS_POINTER 0xA8u 00045 00046 00047 /* 00048 * 00049 * VGA registers 00050 * 00051 */ 00052 #define VGAREG_ACTL_ADDRESS 0x3c0u 00053 #define VGAREG_ACTL_WRITE_DATA 0x3c0u 00054 #define VGAREG_ACTL_READ_DATA 0x3c1u 00055 00056 #define VGAREG_INPUT_STATUS 0x3c2u 00057 #define VGAREG_WRITE_MISC_OUTPUT 0x3c2u 00058 #define VGAREG_VIDEO_ENABLE 0x3c3u 00059 #define VGAREG_SEQU_ADDRESS 0x3c4u 00060 #define VGAREG_SEQU_DATA 0x3c5u 00061 00062 #define VGAREG_PEL_MASK 0x3c6u 00063 #define VGAREG_DAC_STATE 0x3c7u 00064 #define VGAREG_DAC_READ_ADDRESS 0x3c7u 00065 #define VGAREG_DAC_WRITE_ADDRESS 0x3c8u 00066 #define VGAREG_DAC_DATA 0x3c9u 00067 00068 #define VGAREG_READ_FEATURE_CTL 0x3cau 00069 #define VGAREG_READ_MISC_OUTPUT 0x3ccu 00070 00071 #define VGAREG_GRDC_ADDRESS 0x3ceu 00072 #define VGAREG_GRDC_DATA 0x3cfu 00073 00074 #define VGAREG_MDA_CRTC_ADDRESS 0x3b4u 00075 #define VGAREG_MDA_CRTC_DATA 0x3b5u 00076 #define VGAREG_VGA_CRTC_ADDRESS 0x3d4u 00077 #define VGAREG_VGA_CRTC_DATA 0x3d5u 00078 00079 #define VGAREG_MDA_WRITE_FEATURE_CTL 0x3bau 00080 #define VGAREG_VGA_WRITE_FEATURE_CTL 0x3dau 00081 #define VGAREG_ACTL_RESET 0x3dau 00082 #define VGAREG_TDY_RESET 0x3dau 00083 #define VGAREG_TDY_ADDRESS 0x3dau 00084 #define VGAREG_TDY_DATA 0x3deu 00085 #define VGAREG_PCJR_DATA 0x3dau 00086 00087 #define VGAREG_MDA_MODECTL 0x3b8u 00088 #define VGAREG_CGA_MODECTL 0x3d8u 00089 #define VGAREG_CGA_PALETTE 0x3d9u 00090 00091 /* Video memory */ 00092 #define VGAMEM_GRAPH 0xA000u 00093 #define VGAMEM_CTEXT 0xB800u 00094 #define VGAMEM_MTEXT 0xB000u 00095 00096 /* FIXME: Wait, what?? What the hell kind of preprocessor macro is this??? Kill these macros! --J.C. */ 00097 #define BIOS_NCOLS Bit16u ncols=IS_PC98_ARCH ? 80 : real_readw(BIOSMEM_SEG,BIOSMEM_NB_COLS); 00098 #define BIOS_NROWS Bit16u nrows=IS_PC98_ARCH ? (Bit16u)(real_readb(0x60,0x112)+1u) : (Bit16u)real_readb(BIOSMEM_SEG,BIOSMEM_NB_ROWS)+1u; 00099 00100 extern Bit8u int10_font_08[256 * 8]; 00101 extern Bit8u int10_font_14[256 * 14]; 00102 extern Bit8u int10_font_16[256 * 16]; 00103 extern Bit8u int10_font_14_alternate[20 * 15 + 1]; 00104 extern Bit8u int10_font_16_alternate[19 * 17 + 1]; 00105 00106 struct VideoModeBlock { 00107 Bit16u mode; 00108 VGAModes type; 00109 Bitu swidth, sheight; 00110 Bitu twidth, theight; 00111 Bitu cwidth, cheight; 00112 Bitu ptotal,pstart,plength; 00113 00114 Bitu htotal,vtotal; 00115 Bitu hdispend,vdispend; 00116 Bitu special; 00117 00118 }; 00119 extern VideoModeBlock ModeList_VGA[]; 00120 extern VideoModeBlock * CurMode; 00121 00122 typedef struct { 00123 struct { 00124 RealPt font_8_first; 00125 RealPt font_8_second; 00126 RealPt font_14; 00127 RealPt font_16; 00128 RealPt font_14_alternate; 00129 RealPt font_16_alternate; 00130 RealPt static_state; 00131 RealPt video_save_pointers; 00132 RealPt video_dynamic_save_area; 00133 RealPt video_parameter_table; 00134 RealPt video_save_pointer_table; 00135 RealPt video_dcc_table; 00136 RealPt oemstring; 00137 RealPt vesa_modes; 00138 RealPt wait_retrace; 00139 RealPt set_window; 00140 RealPt pmode_interface; 00141 Bit16u pmode_interface_size; 00142 Bit16u pmode_interface_start; 00143 Bit16u pmode_interface_window; 00144 Bit16u pmode_interface_palette; 00145 Bit16u vesa_alloc_modes; 00146 Bit16u used; 00147 } rom; 00148 Bit16u vesa_setmode; 00149 bool vesa_nolfb; 00150 bool vesa_oldvbe; 00151 } Int10Data; 00152 00153 #define _EGA_HALF_CLOCK 0x0001 00154 #define _DOUBLESCAN 0x0002 /* CGA/EGA on VGA doublescan (bit 7 of max scanline) */ 00155 #define _VGA_PIXEL_DOUBLE 0x0004 00156 #define _S3_PIXEL_DOUBLE 0x0008 00157 #define _REPEAT1 0x0010 /* VGA doublescan (bit 0 of max scanline) */ 00158 #define _CGA_SYNCDOUBLE 0x0020 00159 #define _HIGH_DEFINITION 0x0040 00160 #define _UNUSUAL_MODE 0x0080 00161 #define _USER_DISABLED 0x4000 /* disabled (cannot set mode) but still listed in modelist */ 00162 #define _USER_MODIFIED 0x8000 /* user modified (through VESAMOED) */ 00163 00164 extern Int10Data int10; 00165 00166 static inline Bit8u CURSOR_POS_COL(Bit8u page) { 00167 if (IS_PC98_ARCH) 00168 return real_readb(0x60,0x11C); /* MS-DOS kernel location */ 00169 else 00170 return real_readb(BIOSMEM_SEG,BIOSMEM_CURSOR_POS+page*2u); 00171 } 00172 00173 static inline Bit8u CURSOR_POS_ROW(Bit8u page) { 00174 if (IS_PC98_ARCH) 00175 return real_readb(0x60,0x110); /* MS-DOS kernel location */ 00176 else 00177 return real_readb(BIOSMEM_SEG,BIOSMEM_CURSOR_POS+page*2u+1u); 00178 } 00179 00181 bool INT10_GetInsertState(); 00182 00183 bool INT10_SetVideoMode(Bit16u mode); 00184 00185 void INT10_ScrollWindow(Bit8u rul,Bit8u cul,Bit8u rlr,Bit8u clr,Bit8s nlines,Bit8u attr,Bit8u page); 00186 00187 void INT10_SetActivePage(Bit8u page); 00188 bool INT10_SetCurMode(void); 00189 void INT10_DisplayCombinationCode(Bit16u * dcc,bool set); 00190 void INT10_GetFuncStateInformation(PhysPt save); 00191 00192 void INT10_SetCursorShape(Bit8u first,Bit8u last); 00193 void INT10_GetScreenColumns(Bit16u* cols); 00194 void INT10_GetCursorPos(Bit8u *row, Bit8u *col, Bit8u page); 00195 void INT10_SetCursorPos(Bit8u row,Bit8u col,Bit8u page); 00196 void INT10_TeletypeOutput(Bit8u chr,Bit8u attr); 00197 void INT10_TeletypeOutputAttr(Bit8u chr,Bit8u attr,bool useattr); 00198 void INT10_ReadCharAttr(Bit16u * result,Bit8u page); 00199 void INT10_WriteChar(Bit16u chr,Bit8u attr,Bit8u page,Bit16u count,bool showattr); 00200 void INT10_WriteString(Bit8u row,Bit8u col,Bit8u flag,Bit8u attr,PhysPt string,Bit16u count,Bit8u page); 00201 00202 /* Graphics Stuff */ 00203 void INT10_PutPixel(Bit16u x,Bit16u y,Bit8u page,Bit8u color); 00204 void INT10_GetPixel(Bit16u x,Bit16u y,Bit8u page,Bit8u * color); 00205 00206 /* Font Stuff */ 00207 void INT10_LoadFont(PhysPt font,bool reload,Bit16u count,Bitu offset,Bitu map,Bit8u height); 00208 void INT10_ReloadFont(void); 00209 00210 /* Palette Group */ 00211 void INT10_SetBackgroundBorder(Bit8u val); 00212 void INT10_SetColorSelect(Bit8u val); 00213 void INT10_SetSinglePaletteRegister(Bit8u reg,Bit8u val); 00214 void INT10_SetOverscanBorderColor(Bit8u val); 00215 void INT10_SetAllPaletteRegisters(PhysPt data); 00216 void INT10_ToggleBlinkingBit(Bit8u state); 00217 void INT10_GetSinglePaletteRegister(Bit8u reg,Bit8u * val); 00218 void INT10_GetOverscanBorderColor(Bit8u * val); 00219 void INT10_GetAllPaletteRegisters(PhysPt data); 00220 void INT10_SetSingleDACRegister(Bit8u index,Bit8u red,Bit8u green,Bit8u blue); 00221 void INT10_GetSingleDACRegister(Bit8u index,Bit8u * red,Bit8u * green,Bit8u * blue); 00222 void INT10_SetDACBlock(Bit16u index,Bit16u count,PhysPt data); 00223 void INT10_GetDACBlock(Bit16u index,Bit16u count,PhysPt data); 00224 void INT10_SelectDACPage(Bit8u function,Bit8u mode); 00225 void INT10_GetDACPage(Bit8u* mode,Bit8u* page); 00226 void INT10_SetPelMask(Bit8u mask); 00227 void INT10_GetPelMask(Bit8u & mask); 00228 void INT10_PerformGrayScaleSumming(Bit16u start_reg,Bit16u count); 00229 00230 00231 /* Vesa Group */ 00232 Bit8u VESA_GetSVGAInformation(Bit16u seg,Bit16u off); 00233 Bit8u VESA_GetSVGAModeInformation(Bit16u mode,Bit16u seg,Bit16u off); 00234 Bit8u VESA_SetSVGAMode(Bit16u mode); 00235 Bit8u VESA_GetSVGAMode(Bit16u & mode); 00236 Bit8u VESA_SetCPUWindow(Bit8u window,Bit8u address); 00237 Bit8u VESA_GetCPUWindow(Bit8u window,Bit16u & address); 00238 Bit8u VESA_ScanLineLength(Bit8u subcall, Bit16u val, Bit16u & bytes,Bit16u & pixels,Bit16u & lines); 00239 Bit8u VESA_SetDisplayStart(Bit16u x,Bit16u y,bool wait); 00240 Bit8u VESA_GetDisplayStart(Bit16u & x,Bit16u & y); 00241 Bit8u VESA_SetPalette(PhysPt data,Bitu index,Bitu count,bool wait); 00242 Bit8u VESA_GetPalette(PhysPt data,Bitu index,Bitu count); 00243 00244 /* Sub Groups */ 00245 void INT10_SetupRomMemory(void); 00246 void INT10_SetupRomMemoryChecksum(void); 00247 void INT10_SetupVESA(void); 00248 00249 /* EGA RIL */ 00250 RealPt INT10_EGA_RIL_GetVersionPt(void); 00251 void INT10_EGA_RIL_ReadRegister(Bit8u & bl, Bit16u dx); 00252 void INT10_EGA_RIL_WriteRegister(Bit8u & bl, Bit8u bh, Bit16u dx); 00253 void INT10_EGA_RIL_ReadRegisterRange(Bit8u ch, Bit8u cl, Bit16u dx, PhysPt dst); 00254 void INT10_EGA_RIL_WriteRegisterRange(Bit8u ch, Bit8u cl, Bit16u dx, PhysPt src); 00255 void INT10_EGA_RIL_ReadRegisterSet(Bit16u cx, PhysPt tbl); 00256 void INT10_EGA_RIL_WriteRegisterSet(Bit16u cx, PhysPt tbl); 00257 00258 /* Video State */ 00259 Bitu INT10_VideoState_GetSize(Bitu state); 00260 bool INT10_VideoState_Save(Bitu state,RealPt buffer); 00261 bool INT10_VideoState_Restore(Bitu state,RealPt buffer); 00262 00263 /* Video Parameter Tables */ 00264 Bit16u INT10_SetupVideoParameterTable(PhysPt basepos); 00265 void INT10_SetupBasicVideoParameterTable(void);
1.8.0
