From 1f5e6994af4d1a414b2a95c5ebd17c56345d8676 Mon Sep 17 00:00:00 2001 From: Jukka Heinonen Date: Tue, 28 Jan 2003 00:16:01 +0000 Subject: [PATCH] Unify VGA and VESA video mode setting code. --- dlls/winedos/int10.c | 379 +++++++++++++++++++++++---------------------------- 1 file changed, 172 insertions(+), 207 deletions(-) diff --git a/dlls/winedos/int10.c b/dlls/winedos/int10.c index 4e3de15f269..795e305ca68 100644 --- a/dlls/winedos/int10.c +++ b/dlls/winedos/int10.c @@ -31,6 +31,161 @@ WINE_DEFAULT_DEBUG_CHANNEL(int); +/* + * Wine internal information about video modes. + * If depth is zero, the mode is considered to + * be a text mode. + */ +typedef struct { + WORD Mode; + WORD Width; + WORD Height; + WORD Depth; +} INT10_MODE; + + +/* + * List of supported video modes. + */ +static const INT10_MODE INT10_modelist[] = +{ + {0x0000, 40, 25, 0}, + {0x0001, 40, 25, 0}, + {0x0002, 80, 25, 0}, + {0x0003, 80, 25, 0}, + {0x0007, 80, 25, 0}, + {0x000d, 320, 200, 4}, + {0x000e, 640, 200, 4}, + {0x0010, 640, 350, 4}, + {0x0012, 640, 480, 4}, + {0x0013, 320, 200, 8}, + {0x0100, 640, 400, 8}, + {0x0101, 640, 480, 8}, + {0x0102, 800, 600, 4}, + {0x0103, 800, 600, 8}, + {0x0104, 1024, 768, 4}, + {0x0105, 1024, 768, 8}, + {0x0106, 1280, 1024, 4}, + {0x0107, 1280, 1024, 8}, + {0x0108, 80, 60, 0}, + {0x0109, 132, 25, 0}, + {0x010a, 132, 43, 0}, + {0x010b, 132, 50, 0}, + {0x010c, 132, 60, 0}, + {0x010d, 320, 200, 15}, + {0x010e, 320, 200, 16}, + {0x010f, 320, 200, 24}, + {0x0110, 640, 480, 15}, + {0x0111, 640, 480, 16}, + {0x0112, 640, 480, 24}, + {0x0113, 800, 600, 15}, + {0x0114, 800, 600, 16}, + {0x0115, 800, 600, 24}, + {0x0116, 1024, 768, 15}, + {0x0117, 1024, 768, 16}, + {0x0118, 1024, 768, 24}, + {0x0119, 1280, 1024, 15}, + {0x011a, 1280, 1024, 16}, + {0x011b, 1280, 1024, 24}, + {0xffff, 0, 0, 0} +}; + + +/********************************************************************** + * 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_SetVideoMode + * + * Change current video mode to any VGA or VESA mode. + * Returns TRUE if mode is supported. + * + * Mode bitfields: + * 0-6: .. Mode number (combined with bit 8). + * 7: =0 Clear screen. + * =1 Preserve display memory on mode change (VGA modes). + * 8: =0 VGA mode. + * =1 VESA mode. + * 9: .. Reserved, must be zero. + * 10: .. Reserved, must be zero. + * 11: =0 Use default refresh rate. + * =1 Use user specified refresh rate. + * 12: .. Reserved, must be zero. + * 13: .. Reserved, must be zero. + * 14: =0 Use windowed frame buffer model. + * =1 Use linear frame buffer model. + * 15: =0 Clear screen. + * =1 Preserve display memory on mode change (VESA modes). + */ +static BOOL INT10_SetVideoMode( BIOSDATA *data, WORD mode ) +{ + const INT10_MODE *ptr = INT10_FindMode( mode ); + + if (!ptr) + return FALSE; + + /* + * Linear framebuffer is not supported. + */ + if (mode & 0x4000) + return FALSE; + + /* + * Note that we do not mask out flags here on purpose. + * + * FIXME: Store VESA mode somewhere. + */ + if (mode <= 0xff) + data->VideoMode = mode; + else + data->VideoMode = 0; + + if (ptr->Depth == 0) + { + /* Text mode. */ + TRACE( "Setting %s %dx%d text mode\n", + mode <= 0xff ? "VGA" : "VESA", + ptr->Width, ptr->Height ); + /* + * FIXME: We should check here if alpha mode could be set. + */ + VGA_SetAlphaMode( ptr->Width, ptr->Height ); + data->VideoColumns = ptr->Width; + } + else + { + /* Graphics mode. */ + TRACE( "Setting %s %dx%dx%d graphics mode\n", + mode <= 0xff ? "VGA" : "VESA", + ptr->Width, ptr->Height, ptr->Depth ); + if (VGA_SetMode( ptr->Width, ptr->Height, ptr->Depth )) + return FALSE; + } + + return TRUE; +} + + /********************************************************************** * INT10_GetCursorPos */ @@ -73,15 +228,10 @@ static void INT10_InitializeVideoMode( BIOSDATA *data ) * FIXME: Add more mappings between initial size and * text modes. */ - if (width >= 80 && height >= 25) { - VGA_SetAlphaMode(80, 25); - data->VideoColumns = 80; - data->VideoMode = 0x03; - } else { - VGA_SetAlphaMode(40, 25); - data->VideoColumns = 40; - data->VideoMode = 0x01; - } + if (width >= 80 && height >= 25) + INT10_SetVideoMode( data, 0x03 ); + else + INT10_SetVideoMode( data, 0x01 ); } @@ -111,147 +261,18 @@ static void INT10_HandleVESA( CONTEXT86 *context ) break; case 0x02: /* SET SuperVGA VIDEO MODE */ - switch(BX_reg(context)) { - /* OEM Video Modes */ - case 0x00: /* 40x25 */ - case 0x01: - TRACE("Set VESA Text Mode - 0x0%x\n", - BX_reg(context)); - VGA_SetAlphaMode(40, 25); - data->VideoColumns = 40; - break; - case 0x02: - case 0x03: - case 0x07: - TRACE("Set VESA Text Mode - 0x0%x\n", - BX_reg(context)); - VGA_SetAlphaMode(80, 25); - data->VideoColumns = 80; - break; - case 0x0D: - TRACE("Setting VESA 320x200 16-color mode\n"); - VGA_SetMode(320,200,4); - break; - case 0x0E: - TRACE("Setting VESA 640x200 16-color mode\n"); - VGA_SetMode(640,200,4); - break; - case 0x10: - TRACE("Setting VESA 640x350 16-color mode\n"); - VGA_SetMode(640,350,4); - break; - case 0x12: - TRACE("Setting VESA 640x480 16-color mode\n"); - VGA_SetMode(640,480,4); - break; - case 0x13: - TRACE("Setting VESA 320x200 256-color mode\n"); - VGA_SetMode(320,200,8); - break; - /* VBE Modes */ - case 0x100: - TRACE("Setting VESA 640x400 256-color mode\n"); - VGA_SetMode(640,400,8); - break; - case 0x101: - TRACE("Setting VESA 640x480 256-color mode\n"); - VGA_SetMode(640,480,8); - break; - case 0x102: - TRACE("Setting VESA 800x600 16-color mode\n"); - VGA_SetMode(800,600,4); - break; - case 0x103: - TRACE("Setting VESA 800x600 256-color mode\n"); - VGA_SetMode(800,600,8); - break; - case 0x104: - TRACE("Setting VESA 1024x768 16-color mode\n"); - VGA_SetMode(1024,768,4); - break; - case 0x105: - TRACE("Setting VESA 1024x768 256-color mode\n"); - VGA_SetMode(1024,768,8); - break; - case 0x106: - TRACE("Setting VESA 1280x1024 16-color mode\n"); - VGA_SetMode(1280,1024,4); - break; - case 0x107: - TRACE("Setting VESA 1280x1024 256-color mode\n"); - VGA_SetMode(1280,1024,8); - break; - /* 108h - 10Ch are text modes and im lazy so :p */ - /* VBE v1.2+ */ - case 0x10D: - TRACE("Setting VESA 320x200 15bpp\n"); - VGA_SetMode(320,200,15); - break; - case 0x10E: - TRACE("Setting VESA 320x200 16bpp\n"); - VGA_SetMode(320,200,16); - break; - case 0x10F: - TRACE("Setting VESA 320x200 24bpp\n"); - VGA_SetMode(320,200,24); - break; - case 0x110: - TRACE("Setting VESA 640x480 15bpp\n"); - VGA_SetMode(640,480,15); - break; - case 0x111: - TRACE("Setting VESA 640x480 16bpp\n"); - VGA_SetMode(640,480,16); - break; - case 0x112: - TRACE("Setting VESA 640x480 24bpp\n"); - VGA_SetMode(640,480,24); - break; - case 0x113: - TRACE("Setting VESA 800x600 15bpp\n"); - VGA_SetMode(800,600,15); - break; - case 0x114: - TRACE("Setting VESA 800x600 16bpp\n"); - VGA_SetMode(800,600,16); - break; - case 0x115: - TRACE("Setting VESA 800x600 24bpp\n"); - VGA_SetMode(800,600,24); - break; - case 0x116: - TRACE("Setting VESA 1024x768 15bpp\n"); - VGA_SetMode(1024,768,15); - break; - case 0x117: - TRACE("Setting VESA 1024x768 16bpp\n"); - VGA_SetMode(1024,768,16); - break; - case 0x118: - TRACE("Setting VESA 1024x768 24bpp\n"); - VGA_SetMode(1024,768,24); - break; - case 0x119: - TRACE("Setting VESA 1280x1024 15bpp\n"); - VGA_SetMode(1280,1024,15); - break; - case 0x11A: - TRACE("Setting VESA 1280x1024 16bpp\n"); - VGA_SetMode(1280,1024,16); - break; - case 0x11B: - TRACE("Setting VESA 1280x1024 24bpp\n"); - VGA_SetMode(1280,1024,24); - break; - default: - FIXME("VESA Set Video Mode (0x%x) - Not Supported\n", BX_reg(context)); - } - data->VideoMode = BX_reg(context); - SET_AL( context, 0x4f ); - SET_AH( context, 0x00 ); + TRACE( "Set VESA video mode %04x\n", BX_reg(context) ); + SET_AL( context, 0x4f ); /* function supported */ + if (INT10_SetVideoMode( data, BX_reg(context) )) + SET_AH( context, 0x00 ); /* success */ + else + SET_AH( context, 0x01 ); /* failed */ break; case 0x03: /* VESA SuperVGA BIOS - GET CURRENT VIDEO MODE */ + /* + * FIXME: This returns wrong value if current mode is VESA mode. + */ SET_AL( context, 0x4f ); SET_AH( context, 0x00 ); /* should probly check if a vesa mode has ben set */ SET_BX( context, data->VideoMode ); @@ -384,66 +405,10 @@ void WINAPI DOSVM_Int10Handler( CONTEXT86 *context ) switch(AH_reg(context)) { case 0x00: /* SET VIDEO MODE */ - /* Text Modes: */ - /* (mode) (text rows/cols) - 0x00 - 40x25 - 0x01 - 40x25 - 0x02 - 80x25 - 0x03 - 80x25 or 80x43 or 80x50 (assume 80x25) - 0x07 - 80x25 - */ - - /* Bit 7 of AH = 0 -> Clean the video memory - 1 -> Don't clean it - */ - if (!(AL_reg(context)&0x80)) { - /* FIXME: Do something which cleans the video memory */ - } - - /* FIXME: Should we keep the bit 7 in the Bios Data memory? */ - context->Eax &= ~0x80; - - switch (AL_reg(context)) { - case 0x00: /* 40x25 */ - case 0x01: - TRACE("Set Video Mode - Set to Text - 0x0%x\n", - AL_reg(context)); - VGA_SetAlphaMode(40, 25); - data->VideoColumns = 40; - break; - case 0x02: - case 0x03: - case 0x07: - TRACE("Set Video Mode - Set to Text - 0x0%x\n", - AL_reg(context)); - VGA_SetAlphaMode(80, 25); - data->VideoColumns = 80; - break; - case 0x0D: - TRACE("Setting VGA 320x200 16-color mode\n"); - VGA_SetMode(320,200,4); - break; - case 0x0E: - TRACE("Setting VGA 640x200 16-color mode\n"); - VGA_SetMode(640,200,4); - break; - case 0x10: - TRACE("Setting VGA 640x350 16-color mode\n"); - VGA_SetMode(640,350,4); - break; - case 0x12: - TRACE("Setting VGA 640x480 16-color mode\n"); - VGA_SetMode(640,480,4); - break; - case 0x13: - TRACE("Setting VGA 320x200 256-color mode\n"); - VGA_SetMode(320,200,8); - break; - default: - FIXME("Set Video Mode (0x%x) - Not Supported\n", - AL_reg(context)); - } - data->VideoMode = AL_reg(context); + TRACE( "Set VGA video mode %02x\n", AL_reg(context) ); + if (!INT10_SetVideoMode( data, AL_reg(context) )) + FIXME( "Unsupported VGA video mode requested: %d\n", + AL_reg(context) ); break; case 0x01: /* SET CURSOR SHAPE */ -- 2.11.4.GIT