/* * TEX Device Driver ver 2.02- * copyright(c) 1988,89 by TSG, 1990-93 SHIMA * * PREVIEWER ver 2.02- * device.c : previewer module * 4th edition * * very slightly modified against warnings by Oh-Yeah? 25 May 1992 * support EMS by SHIMA, Dec 1992 * modified for DOS/V by hero.h, Jan. 1993 * * Of course, this module is device-dependent. */ #define SIZE64KB 65536L #define ONEBYTE 8 #define V_BIOS 0x10 /* Video Bios Int. NO. */ #define BIOS_WORK 0x0040 /* BIOS work data area segment address */ #define RESUME_BASE 0x00F0 /* resume information area address */ #undef LOOK_SMOOTH /* To look smooth in hard scrolling */ #define LOOK_SMOOTH #define WEIGHT 900 /* Display weight to look smooth */ /* Display resolution */ #define RES_640_480 0 #define RES_800_600 1 #define RES_1024_768 2 #define RES_1280_1024 3 /* Video chip */ #define CHIP_VGA 0 #define CHIP_ET4000 1 #define CHIP_86C911 2 #define CHIP_T8900 3 #define CHIP_WD90C00 4 #define CHIP_WD100X 5 #define CHIP_MACH 6 #define CHIP_VBE 9 /* Video Mode information */ #define VMODE_VGA 0x12 /* 640 x 480 16 color */ #define VMODE_ET4000_800 0x29 /* 800 x 600 16 color */ #define VMODE_WD90C00_800 0x58 #define VMODE_T8900_800 0x5B #define VMODE_86C911_800 0x6A #define VMODE_MACH_800 0x54 #define VMODE_ET4000_1K 0x37 /* 1024 x 768 16 color */ #define VMODE_WD90C00_1K 0x5D #define VMODE_T8900_1K 0x5F #define VMODE_86C911_1K 0x104 #define VMODE_MACH_1K 0x55 #define VMODE_HITEXT 0x72 /* HiText driver */ #define VMODE_ERR_VESA 0xFFFD #define VMODE_ERR_HIRESO 0xFFFE #define VMODE_UNKNOWN 0xFFFF /* VGA regieters */ #define START_ADDRESS_HIGH 0X0C #define START_ADDRESS_LOW 0X0D #define AC_INDEX 0X3C0 #define AC_HPP 0X13 | 0X20 #define OFFSET_REG 0X013 #define INPUT_STATUS1 0x3DA #define V_RETRACE 0x08 /* SVGA registers */ #define ET4000_BANK_PORT 0x3CD #define ET4000_DISP_INDEX 0x33 #define WD90C00_GRC_PORT 0x3CE #define WD90C00_BANK_PORT 0x3CE #define WD90C00_BANK_INDEX 0x09 #define WD90C00_DISP_INDEX 0x0D #define T8900_BANK_PORT 0x3C4 #define T8900_BANK_INDEX 0x0E #define T8900_DISP_INDEX 0x1E #define S86C911_BANK_INDEX 0x35 #define S86C911_DISP_INDEX 0x31 #define S86C80X_BANK_INDEX 0x50 #define S86C80X_DISP_INDEX 0x51 #define S86C911_S3_LOCK 0x38 #define S86C911_SC_LOCK 0x39 #define MACH_CMD_PORT 0x1ce #define G_TOP 0xa0000000L #define G_SEG 0xa000 #define G_WIDTH_B_MAX 200 #define G_WIDTH_B_1280 160 #define G_WIDTH_B_1024 128 #define G_WIDTH_B_800 100 #define G_WIDTH_B_640 80 #define G_HEIGHT_MAX 1200 #define G_HEIGHT_1024 1024 #define G_HEIGHT_768 768 #define G_HEIGHT_600 600 #define G_HEIGHT_480 480 #define X_ORG_B_640 5 #define X_ORG_B_800 3 #define X_ORG_B_1024 1 #define X_ORG_B_1280 1 #define Y_ORG_480 2 #define Y_ORG_600 2 #define Y_ORG_768 2 #define Y_ORG_1024 2 #define DIV_F1_HI 2 /* 1/2 view */ #define DIV_F2_HI 4 /* 1/4 */ #define SHIFT_F1_HI 1 /* 1/2 view */ #define SHIFT_F2_HI 2 /* 1/4 */ #define DIV_F1_LOW 4 /* 1/4 view */ #define DIV_F2_LOW 8 /* 1/8 */ #define SHIFT_F1_LOW 2 /* 1/4 view */ #define SHIFT_F2_LOW 3 /* 1/8 */ /* Display offset (Byte) */ #define X_ORG_B 5 #define Y_ORG_B 2 #define ON 1 #define OFF 0 #define ESC 0x1b #define V_SHIFT 1 #define GRAM_BUF uchar far #define MAX_VIEW 16 /* 縮小画面数 */ #define DIVSCAN_MAX 17 /* 画面分割バッファ数 */ struct VIEW { int current; /* current screen to be saved */ int total; /* total screen saved */ int page[MAX_VIEW]; /* page numbers for screens */ }; struct SCROLL { /* output parameter. send to scroll-functions and other device-output- * functions */ ulong offset; /* Screen Display offset address (OFFSET) */ ulong gaddr; /* the current position in video buffer */ int o_width, o_height; /* width(bytes) and height(pixels) of output screen */ int x, y; /* the current positioin in bitmap. */ int gw_act, gh_act; /* width and height to output on screen */ BOOL x_lock, y_lock; /* permition to scroll horizontal and vertical direction. */ HUGE_BUF *mptr; /* the current position of bitmap pointer */ int h_spc, v_spc; /* h_spc and v_spc is to put at the center of the screen */ }; /* light color element */ struct COLOR_ELEMENT { uchar r; uchar g; uchar b; }; struct PALETTE { struct COLOR_ELEMENT fg; struct COLOR_ELEMENT bg; }; typedef enum { BackSpace, SpaceKey, /* PreviousPart, NextPart */ Key_P, Key_N, /* PreviousPage, NextPage */ CaridgeReturn, /* NextPageDirection */ EscapeKey, /* EscapeQuit */ Key_Q, /* Same as above */ Key_B, /* Another Previous Page */ Key_V, /* View outline */ Key_C, /* Comressed View */ Key_R, /* Reverse */ Key_H, /* HELP */ HELP, /* Same as above */ Key_M, /* Move to a page */ Key_G, /* Same as above */ ArrowDown, ArrowUp, ArrowLeft, ArrowRight, ShiftDown, ShiftUp, ShiftLeft, ShiftRight, LoopEnd } KeyInput; /* VESA BIOS Extention information structure */ /* VBE information */ struct VBE_INFO { char sign[4]; uchar ver_lo; uchar ver_hi; char far *oemstrp; ulong capa; uint far *modesp; }; /* VBE Mode information */ struct VBE_MODE_INFO { uint mode_attr; uchar win_a_attr; uchar win_b_attr; uint win_granula; uint win_size; uint win_a_seg; uint win_b_seg; void (far * win_func) (void); uint win_bps; /* Optional information */ uint x_reso; uint y_reso; uchar x_char_size; uchar y_char_size; uchar number_of_planes; uchar bits_per_pixel; uchar number_of_banks; uchar memory_model; uchar bank_size; uchar image_pages; uchar reserve00; /* VBE 1.2+ */ uchar red_mask_size; uchar red_field_pos; uchar green_mask_size; uchar green_field_pos; uchar blue_mask_size; uchar blue_field_pos; uchar reserved_mask_size; uchar reserved_field_pos; uchar direct_color_mode_info; }; /* VBE モード動作時に使用する情報の構造 */ struct VBE_ACT_INFO { ulong granula; ulong int size; uint width; uint rd_win; uint wr_win; BUFFER far *rd_top; BUFFER far *wr_top; }; /* チップ <=> 画面モード・対応テーブル構造 */ struct CHIP_MODES { uint chip; uint vmode; }; /* 解像度 <=> VESA 画面モード・対応テーブル構造 */ struct VESA_MODES { int reso; uint vmode; }; /* 画面分割テーブル構造 */ struct DIVSCAN { BOOL div; /* スキャンライン分割フラグ */ uint lines; /* 同一バンクのライン数 */ uint len1; /* スキャンライン・バイト数(分割:前半、非分割:全長) */ uint len2; /* 後半スキャンライン・バイト数 */ }; /* オプション=>実装名 変換テーブル構造 */ static struct OPT_NAMES { int opt; /* オプション値 */ char *name; /* 実装名文字列 */ };