| /* |
| * VGA hardware emulation |
| * |
| * Copyright 1998 Ove Kåven (with some help from Marcus Meissner) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include <stdarg.h> |
| #include <string.h> |
| |
| #define NONAMELESSUNION |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "winuser.h" |
| #include "wincon.h" |
| #include "dosexe.h" |
| #include "vga.h" |
| #include "ddraw.h" |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(ddraw); |
| |
| static IDirectDraw *lpddraw = NULL; |
| static IDirectDrawSurface *lpddsurf; |
| static IDirectDrawPalette *lpddpal; |
| static DDSURFACEDESC sdesc; |
| |
| static BOOL vga_retrace_vertical; |
| static BOOL vga_retrace_horizontal; |
| |
| /* |
| * Size and location of VGA controller window to framebuffer. |
| * |
| * Note: We support only single window even though some |
| * controllers support two. This should not be changed unless |
| * there are programs that depend on having two windows. |
| */ |
| #define VGA_WINDOW_SIZE (64 * 1024) |
| #define VGA_WINDOW_START ((char *)0xa0000) |
| |
| /* |
| * Size and location of CGA controller window to framebuffer. |
| */ |
| #define CGA_WINDOW_SIZE (32 * 1024) |
| #define CGA_WINDOW_START ((char *)0xb8000) |
| |
| /* |
| * VGA controller memory is emulated using linear framebuffer. |
| * This frambuffer also acts as an interface |
| * between VGA controller emulation and DirectDraw. |
| * |
| * vga_fb_width: Display width in pixels. Can be modified when |
| * display mode is changed. |
| * vga_fb_height: Display height in pixels. Can be modified when |
| * display mode is changed. |
| * vga_fb_depth: Number of bits used to store single pixel color information. |
| * Each pixel uses (vga_fb_depth+7)/8 bytes because |
| * 1-16 color modes are mapped to 256 color mode. |
| * Can be modified when display mode is changed. |
| * vga_fb_pitch: How many bytes to add to pointer in order to move |
| * from one row to another. This is fixed in VGA modes, |
| * but can be modified in SVGA modes. |
| * vga_fb_offset: Offset added to framebuffer start address in order |
| * to find the display origin. Programs use this to do |
| * double buffering and to scroll display. The value can |
| * be modified in VGA and SVGA modes. |
| * vga_fb_size: How many bytes are allocated to framebuffer. |
| * VGA framebuffers are always larger than display size and |
| * SVGA framebuffers may also be. |
| * vga_fb_data: Pointer to framebuffer start. |
| * vga_fb_window: Offset of 64k window 0xa0000 in bytes from framebuffer start. |
| * This value is >= 0, if mode uses linear framebuffer and |
| * -1, if mode uses color planes. This value is fixed |
| * in all modes except 0x13 (256 color VGA) where |
| * 0 means normal mode and -1 means Mode-X (unchained mode). |
| */ |
| static int vga_fb_width; |
| static int vga_fb_height; |
| static int vga_fb_depth; |
| static int vga_fb_pitch; |
| static int vga_fb_offset; |
| static int vga_fb_size = 0; |
| static char *vga_fb_data = 0; |
| static int vga_fb_window = 0; |
| static int vga_fb_window_size; |
| static char *vga_fb_window_data; |
| static PALETTEENTRY *vga_fb_palette; |
| static unsigned vga_fb_palette_index; |
| static unsigned vga_fb_palette_size; |
| static BOOL vga_fb_bright; |
| static BOOL vga_fb_enabled; |
| |
| /* |
| * VGA text mode data. |
| * |
| * vga_text_attr: Current active attribute. |
| * vga_text_old: Last data sent to console. |
| * This is used to optimize console updates. |
| * vga_text_width: Width of the text display in characters. |
| * vga_text_height: Height of the text display in characters. |
| * vga_text_x: Current cursor X-position. Starts from zero. |
| * vga_text_y: Current cursor Y-position. Starts from zero. |
| * vga_text_console: TRUE if stdout is console, |
| * FALSE if it is regular file. |
| */ |
| static BYTE vga_text_attr; |
| static char *vga_text_old = NULL; |
| static BYTE vga_text_width; |
| static BYTE vga_text_height; |
| static BYTE vga_text_x; |
| static BYTE vga_text_y; |
| static BOOL vga_text_console; |
| |
| /* |
| * VGA controller ports 0x3c0, 0x3c4, 0x3ce and 0x3d4 are |
| * indexed registers. These ports are used to select VGA controller |
| * subregister that can be written to or read from using ports 0x3c1, |
| * 0x3c5, 0x3cf or 0x3d5. Selected subregister indexes are |
| * stored in variables vga_index_*. |
| * |
| * Port 0x3c0 is special because it is both index and |
| * data-write register. Flip-flop vga_address_3c0 tells whether |
| * the port acts currently as an address register. Reading from port |
| * 0x3da resets the flip-flop to address mode. |
| */ |
| static BYTE vga_index_3c0; |
| static BYTE vga_index_3c4; |
| 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 */ |
| {0x0011, 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 |
| * are atomic and the user interface is protected from flicker and |
| * corruption. |
| * |
| * The mutex actually serializes VGA operations and the screen update. |
| * Which means that whenever VGA_Poll occurs, application stalls if it |
| * tries to modify VGA state. This is not how real VGA adapters work, |
| * but it makes timing and correctness issues much easier to deal with. |
| */ |
| static CRITICAL_SECTION vga_lock; |
| static CRITICAL_SECTION_DEBUG critsect_debug = |
| { |
| 0, 0, &vga_lock, |
| { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, |
| 0, 0, { (DWORD_PTR)(__FILE__ ": vga_lock") } |
| }; |
| static CRITICAL_SECTION vga_lock = { &critsect_debug, -1, 0, 0, 0, 0 }; |
| |
| static void CALLBACK VGA_Poll( LPVOID arg, DWORD low, DWORD high ); |
| |
| static HWND vga_hwnd = NULL; |
| |
| /* |
| * CGA palette 1 |
| */ |
| static PALETTEENTRY cga_palette1[] = { |
| {0x00, 0x00, 0x00}, /* 0 - Black */ |
| {0x00, 0xAA, 0xAA}, /* 1 - Cyan */ |
| {0xAA, 0x00, 0xAA}, /* 2 - Magenta */ |
| {0xAA, 0xAA, 0xAA} /* 3 - White */ |
| }; |
| |
| /* |
| * CGA palette 1 in the bright variant |
| * intensities, when signalled to do so |
| * in register 0x3d9 |
| */ |
| static PALETTEENTRY cga_palette1_bright[] = { |
| {0x00, 0x00, 0x00}, /* 0 - Black */ |
| {0x55, 0xFF, 0xFF}, /* 1 - Light cyan */ |
| {0xFF, 0x55, 0xFF}, /* 2 - Light magenta */ |
| {0xFF, 0xFF, 0xFF}, /* 3 - Bright White */ |
| }; |
| |
| /* |
| * CGA palette 2 |
| */ |
| static PALETTEENTRY cga_palette2[] = { |
| {0x00, 0x00, 0x00}, /* 0 - Black */ |
| {0x00, 0xAA, 0x00}, /* 1 - Green */ |
| {0xAA, 0x00, 0x00}, /* 2 - Red */ |
| {0xAA, 0x55, 0x00} /* 3 - Brown */ |
| }; |
| |
| /* |
| * CGA palette 2 in the bright variant |
| * intensities, when signalled to do so |
| * in register 0x3d9 |
| */ |
| static PALETTEENTRY cga_palette2_bright[] = { |
| {0x00, 0x00, 0x00}, /* 0 - Black */ |
| {0x55, 0xFF, 0x55}, /* 1 - Light green */ |
| {0xFF, 0x55, 0x55}, /* 2 - Light red */ |
| {0xFF, 0xFF, 0x55}, /* 3 - Yellow */ |
| }; |
| |
| /* |
| * 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 */ |
| 0x02, /* 2 - Green */ |
| 0x03, /* 3 - Cyan */ |
| 0x04, /* 4 - Red */ |
| 0x05, /* 5 - Magenta */ |
| 0x14, /* 6 - Brown */ |
| 0x07, /* 7 - White (Light gray) */ |
| 0x38, /* 8 - Dark gray */ |
| 0x39, /* 9 - Light blue */ |
| 0x3a, /* A - Light green */ |
| 0x3b, /* B - Light cyan */ |
| 0x3c, /* C - Light red */ |
| 0x3d, /* D - Light magenta */ |
| 0x3e, /* E - Yellow */ |
| 0x3f, /* F - Bright White (White) */ |
| 0x00 /* Border Color */ |
| }; |
| |
| /* |
| * Mode 19 Default Color Register Setting |
| * DAC palette registers, converted from actual 18 bit color to 24. |
| */ |
| static PALETTEENTRY vga_def_palette[256]={ |
| /* red green blue */ |
| /* 16 colors in IRGB values */ |
| {0x00, 0x00, 0x00}, /* 0 (0) - Black */ |
| {0x00, 0x00, 0xAA}, /* 1 (1) - Blue */ |
| {0x00, 0xAA, 0x00}, /* 2 (2) - Green */ |
| {0x00, 0xAA, 0xAA}, /* 3 (3) - Cyan */ |
| {0xAA, 0x00, 0x00}, /* 4 (4) - Red */ |
| {0xAA, 0x00, 0xAA}, /* 5 (5) - Magenta */ |
| {0xAA, 0x55, 0x00}, /* 6 (6) - Brown */ |
| {0xAA, 0xAA, 0xAA}, /* 7 (7) - White (Light gray) */ |
| {0x55, 0x55, 0x55}, /* 8 (8) - Dark gray */ |
| {0x55, 0x55, 0xFF}, /* 9 (9) - Light blue */ |
| {0x55, 0xFF, 0x55}, /* 10 (A) - Light green */ |
| {0x55, 0xFF, 0xFF}, /* 11 (B) - Light cyan */ |
| {0xFF, 0x55, 0x55}, /* 12 (C) - Light red */ |
| {0xFF, 0x55, 0xFF}, /* 13 (D) - Light magenta */ |
| {0xFF, 0xFF, 0x55}, /* 14 (E) - Yellow */ |
| {0xFF, 0xFF, 0xFF}, /* 15 (F) - Bright White (White) */ |
| /* 16 shades of gray */ |
| {0x00, 0x00, 0x00}, /* 16 (10) */ |
| {0x10, 0x10, 0x10}, /* 17 (11) */ |
| {0x20, 0x20, 0x20}, /* 18 (12) */ |
| {0x35, 0x35, 0x35}, /* 19 (13) */ |
| {0x45, 0x45, 0x45}, /* 20 (14) */ |
| {0x55, 0x55, 0x55}, /* 21 (15) */ |
| {0x65, 0x65, 0x65}, /* 22 (16) */ |
| {0x75, 0x75, 0x75}, /* 23 (17) */ |
| {0x8A, 0x8A, 0x8A}, /* 24 (18) */ |
| {0x9A, 0x9A, 0x9A}, /* 25 (19) */ |
| {0xAA, 0xAA, 0xAA}, /* 26 (1A) */ |
| {0xBA, 0xBA, 0xBA}, /* 27 (1B) */ |
| {0xCA, 0xCA, 0xCA}, /* 28 (1C) */ |
| {0xDF, 0xDF, 0xDF}, /* 29 (1D) */ |
| {0xEF, 0xEF, 0xEF}, /* 30 (1E) */ |
| {0xFF, 0xFF, 0xFF}, /* 31 (1F) */ |
| /* High Intensity group - 72 colors in 1/3 saturation groups (20H-37H high) */ |
| {0x00, 0x00, 0xFF}, /* 32 (20) */ |
| {0x41, 0x00, 0xFF}, /* 33 (21) */ |
| {0x82, 0x00, 0xFF}, /* 34 (22) */ |
| {0xBE, 0x00, 0xFF}, /* 35 (23) */ |
| {0xFF, 0x00, 0xFF}, /* 36 (24) */ |
| {0xFF, 0x00, 0xBE}, /* 37 (25) */ |
| {0xFF, 0x00, 0x82}, /* 38 (26) */ |
| {0xFF, 0x00, 0x41}, /* 39 (27) */ |
| {0xFF, 0x00, 0x00}, /* 40 (28) */ |
| {0xFF, 0x41, 0x00}, /* 41 (29) */ |
| {0xFF, 0x82, 0x00}, /* 42 (2A) */ |
| {0xFF, 0xBE, 0x00}, /* 43 (2B) */ |
| {0xFF, 0xFF, 0x00}, /* 44 (2C) */ |
| {0xBE, 0xFF, 0x00}, /* 45 (2D) */ |
| {0x82, 0xFF, 0x00}, /* 46 (2E) */ |
| {0x41, 0xFF, 0x00}, /* 47 (2F) */ |
| {0x00, 0xFF, 0x00}, /* 48 (30) */ |
| {0x00, 0xFF, 0x41}, /* 49 (31) */ |
| {0x00, 0xFF, 0x82}, /* 50 (32) */ |
| {0x00, 0xFF, 0xBE}, /* 51 (33) */ |
| {0x00, 0xFF, 0xFF}, /* 52 (34) */ |
| {0x00, 0xBE, 0xFF}, /* 53 (35) */ |
| {0x00, 0x82, 0xFF}, /* 54 (36) */ |
| {0x00, 0x41, 0xFF}, /* 55 (37) */ |
| /* High Intensity group - 72 colors in 2/3 saturation groups (38H-4FH moderate) */ |
| {0x82, 0x82, 0xFF}, /* 56 (38) */ |
| {0x9E, 0x82, 0xFF}, /* 57 (39) */ |
| {0xBE, 0x82, 0xFF}, /* 58 (3A) */ |
| {0xDF, 0x82, 0xFF}, /* 59 (3B) */ |
| {0xFF, 0x82, 0xFF}, /* 60 (3C) */ |
| {0xFF, 0x82, 0xDF}, /* 61 (3D) */ |
| {0xFF, 0x82, 0xBE}, /* 62 (3E) */ |
| {0xFF, 0x82, 0x9E}, /* 63 (3F) */ |
| {0xFF, 0x82, 0x82}, /* 64 (40) */ |
| {0xFF, 0x9E, 0x82}, /* 65 (41) */ |
| {0xFF, 0xBE, 0x82}, /* 66 (42) */ |
| {0xFF, 0xDF, 0x82}, /* 67 (43) */ |
| {0xFF, 0xFF, 0x82}, /* 68 (44) */ |
| {0xDF, 0xFF, 0x82}, /* 69 (45) */ |
| {0xBE, 0xFF, 0x82}, /* 70 (46) */ |
| {0x9E, 0xFF, 0x82}, /* 71 (47) */ |
| {0x82, 0xFF, 0x82}, /* 72 (48) */ |
| {0x82, 0xFF, 0x9E}, /* 73 (49) */ |
| {0x82, 0xFF, 0xBE}, /* 74 (4A) */ |
| {0x82, 0xFF, 0xDF}, /* 75 (4B) */ |
| {0x82, 0xFF, 0xFF}, /* 76 (4C) */ |
| {0x82, 0xDF, 0xFF}, /* 77 (4D) */ |
| {0x82, 0xBE, 0xFF}, /* 78 (4E) */ |
| {0x82, 0x9E, 0xFF}, /* 79 (4F) */ |
| /* High Intensity group - 72 colors in 3/3 saturation groups (50H-67H low) */ |
| {0xBA, 0xBA, 0xFF}, /* 80 (50) */ |
| {0xCA, 0xBA, 0xFF}, /* 81 (51) */ |
| {0xDF, 0xBA, 0xFF}, /* 82 (52) */ |
| {0xEF, 0xBA, 0xFF}, /* 83 (53) */ |
| {0xFF, 0xBA, 0xFF}, /* 84 (54) */ |
| {0xFF, 0xBA, 0xEF}, /* 85 (55) */ |
| {0xFF, 0xBA, 0xDF}, /* 86 (56) */ |
| {0xFF, 0xBA, 0xCA}, /* 87 (57) */ |
| {0xFF, 0xBA, 0xBA}, /* 88 (58) */ |
| {0xFF, 0xCA, 0xBA}, /* 89 (59) */ |
| {0xFF, 0xDF, 0xBA}, /* 90 (5A) */ |
| {0xFF, 0xEF, 0xBA}, /* 91 (5B) */ |
| {0xFF, 0xFF, 0xBA}, /* 92 (5C) */ |
| {0xEF, 0xFF, 0xBA}, /* 93 (5D) */ |
| {0xDF, 0xFF, 0xBA}, /* 94 (5E) */ |
| {0xCA, 0xFF, 0xBA}, /* 95 (5F) */ |
| {0xBA, 0xFF, 0xBA}, /* 96 (60) */ |
| {0xBA, 0xFF, 0xCA}, /* 97 (61) */ |
| {0xBA, 0xFF, 0xDF}, /* 98 (62) */ |
| {0xBA, 0xFF, 0xEF}, /* 99 (63) */ |
| {0xBA, 0xFF, 0xFF}, /* 100 (64) */ |
| {0xBA, 0xEF, 0xFF}, /* 101 (65) */ |
| {0xBA, 0xDF, 0xFF}, /* 102 (66) */ |
| {0xBA, 0xCA, 0xFF}, /* 103 (67) */ |
| /* Medium Intensity group - 72 colors in 1/3 saturation groups (68H-7FH high) */ |
| {0x00, 0x00, 0x71}, /* 104 (68) */ |
| {0x1C, 0x00, 0x71}, /* 105 (69) */ |
| {0x39, 0x00, 0x71}, /* 106 (6A) */ |
| {0x55, 0x00, 0x71}, /* 107 (6B) */ |
| {0x71, 0x00, 0x71}, /* 108 (6C) */ |
| {0x71, 0x00, 0x55}, /* 109 (6D) */ |
| {0x71, 0x00, 0x39}, /* 110 (6E) */ |
| {0x71, 0x00, 0x1C}, /* 111 (6F) */ |
| {0x71, 0x00, 0x00}, /* 112 (70) */ |
| {0x71, 0x1C, 0x00}, /* 113 (71) */ |
| {0x71, 0x39, 0x00}, /* 114 (72) */ |
| {0x71, 0x55, 0x00}, /* 115 (73) */ |
| {0x71, 0x71, 0x00}, /* 116 (74) */ |
| {0x55, 0x71, 0x00}, /* 117 (75) */ |
| {0x39, 0x71, 0x00}, /* 118 (76) */ |
| {0x1C, 0x71, 0x00}, /* 119 (77) */ |
| {0x00, 0x71, 0x00}, /* 120 (78) */ |
| {0x00, 0x71, 0x1C}, /* 121 (79) */ |
| {0x00, 0x71, 0x39}, /* 122 (7A) */ |
| {0x00, 0x71, 0x55}, /* 123 (7B) */ |
| {0x00, 0x71, 0x71}, /* 124 (7C) */ |
| {0x00, 0x55, 0x71}, /* 125 (7D) */ |
| {0x00, 0x39, 0x71}, /* 126 (7E) */ |
| {0x00, 0x1C, 0x71}, /* 127 (7F) */ |
| /* Medium Intensity group - 72 colors in 2/3 saturation groups (80H-97H moderate) */ |
| {0x39, 0x39, 0x71}, /* 128 (80) */ |
| {0x45, 0x39, 0x71}, /* 129 (81) */ |
| {0x55, 0x39, 0x71}, /* 130 (82) */ |
| {0x61, 0x39, 0x71}, /* 131 (83) */ |
| {0x71, 0x39, 0x71}, /* 132 (84) */ |
| {0x71, 0x39, 0x61}, /* 133 (85) */ |
| {0x71, 0x39, 0x55}, /* 134 (86) */ |
| {0x71, 0x39, 0x45}, /* 135 (87) */ |
| {0x71, 0x39, 0x39}, /* 136 (88) */ |
| {0x71, 0x45, 0x39}, /* 137 (89) */ |
| {0x71, 0x55, 0x39}, /* 138 (8A) */ |
| {0x71, 0x61, 0x39}, /* 139 (8B) */ |
| {0x71, 0x71, 0x39}, /* 140 (8C) */ |
| {0x61, 0x71, 0x39}, /* 141 (8D) */ |
| {0x55, 0x71, 0x39}, /* 142 (8E) */ |
| {0x45, 0x71, 0x39}, /* 143 (8F) */ |
| {0x39, 0x71, 0x39}, /* 144 (90) */ |
| {0x39, 0x71, 0x45}, /* 145 (91) */ |
| {0x39, 0x71, 0x55}, /* 146 (92) */ |
| {0x39, 0x71, 0x61}, /* 147 (93) */ |
| {0x39, 0x71, 0x71}, /* 148 (94) */ |
| {0x39, 0x61, 0x71}, /* 149 (95) */ |
| {0x39, 0x55, 0x71}, /* 150 (96) */ |
| {0x39, 0x45, 0x71}, /* 151 (97) */ |
| /* Medium Intensity group - 72 colors in 3/3 saturation groups (98H-AFH low) */ |
| {0x51, 0x51, 0x71}, /* 152 (98) */ |
| {0x59, 0x51, 0x71}, /* 153 (99) */ |
| {0x61, 0x51, 0x71}, /* 154 (9A) */ |
| {0x69, 0x51, 0x71}, /* 155 (9B) */ |
| {0x71, 0x51, 0x71}, /* 156 (9C) */ |
| {0x71, 0x51, 0x69}, /* 157 (9D) */ |
| {0x71, 0x51, 0x61}, /* 158 (9E) */ |
| {0x71, 0x51, 0x59}, /* 159 (9F) */ |
| {0x71, 0x51, 0x51}, /* 160 (A0) */ |
| {0x71, 0x59, 0x51}, /* 161 (A1) */ |
| {0x71, 0x61, 0x51}, /* 162 (A2) */ |
| {0x71, 0x69, 0x51}, /* 163 (A3) */ |
| {0x71, 0x71, 0x51}, /* 164 (A4) */ |
| {0x69, 0x71, 0x51}, /* 165 (A5) */ |
| {0x61, 0x71, 0x51}, /* 166 (A6) */ |
| {0x59, 0x71, 0x51}, /* 167 (A7) */ |
| {0x51, 0x71, 0x51}, /* 168 (A8) */ |
| {0x51, 0x71, 0x59}, /* 169 (A9) */ |
| {0x51, 0x71, 0x61}, /* 170 (AA) */ |
| {0x51, 0x71, 0x69}, /* 171 (AB) */ |
| {0x51, 0x71, 0x71}, /* 172 (AC) */ |
| {0x51, 0x69, 0x71}, /* 173 (AD) */ |
| {0x51, 0x61, 0x71}, /* 174 (AE) */ |
| {0x51, 0x59, 0x71}, /* 175 (AF) */ |
| /* Low Intensity group - 72 colors in 1/3 saturation groups (B0H-C7H high) */ |
| {0x00, 0x00, 0x41}, /* 176 (B0) */ |
| {0x10, 0x00, 0x41}, /* 177 (B1) */ |
| {0x20, 0x00, 0x41}, /* 178 (B2) */ |
| {0x31, 0x00, 0x41}, /* 179 (B3) */ |
| {0x41, 0x00, 0x41}, /* 180 (B4) */ |
| {0x41, 0x00, 0x31}, /* 181 (B5) */ |
| {0x41, 0x00, 0x20}, /* 182 (B6) */ |
| {0x41, 0x00, 0x10}, /* 183 (B7) */ |
| {0x41, 0x00, 0x00}, /* 184 (B8) */ |
| {0x41, 0x10, 0x00}, /* 185 (B9) */ |
| {0x41, 0x20, 0x00}, /* 186 (BA) */ |
| {0x41, 0x31, 0x00}, /* 187 (BB) */ |
| {0x41, 0x41, 0x00}, /* 188 (BC) */ |
| {0x31, 0x41, 0x00}, /* 189 (BD) */ |
| {0x20, 0x41, 0x00}, /* 190 (BE) */ |
| {0x10, 0x41, 0x00}, /* 191 (BF) */ |
| {0x00, 0x41, 0x00}, /* 192 (C0) */ |
| {0x00, 0x41, 0x10}, /* 193 (C1) */ |
| {0x00, 0x41, 0x20}, /* 194 (C2) */ |
| {0x00, 0x41, 0x31}, /* 195 (C3) */ |
| {0x00, 0x41, 0x41}, /* 196 (C4) */ |
| {0x00, 0x31, 0x41}, /* 197 (C5) */ |
| {0x00, 0x20, 0x41}, /* 198 (C6) */ |
| {0x00, 0x10, 0x41}, /* 199 (C7) */ |
| /* Low Intensity group - 72 colors in 2/3 saturation groups (C8H-DFH moderate) */ |
| {0x20, 0x20, 0x41}, /* 200 (C8) */ |
| {0x28, 0x20, 0x41}, /* 201 (C9) */ |
| {0x31, 0x20, 0x41}, /* 202 (CA) */ |
| {0x39, 0x20, 0x41}, /* 203 (CB) */ |
| {0x41, 0x20, 0x41}, /* 204 (CC) */ |
| {0x41, 0x20, 0x39}, /* 205 (CD) */ |
| {0x41, 0x20, 0x31}, /* 206 (CE) */ |
| {0x41, 0x20, 0x28}, /* 207 (CF) */ |
| {0x41, 0x20, 0x20}, /* 208 (D0) */ |
| {0x41, 0x28, 0x20}, /* 209 (D1) */ |
| {0x41, 0x31, 0x20}, /* 210 (D2) */ |
| {0x41, 0x39, 0x20}, /* 211 (D3) */ |
| {0x41, 0x41, 0x20}, /* 212 (D4) */ |
| {0x39, 0x41, 0x20}, /* 213 (D5) */ |
| {0x31, 0x41, 0x20}, /* 214 (D6) */ |
| {0x28, 0x41, 0x20}, /* 215 (D7) */ |
| {0x20, 0x41, 0x20}, /* 216 (D8) */ |
| {0x20, 0x41, 0x28}, /* 217 (D9) */ |
| {0x20, 0x41, 0x31}, /* 218 (DA) */ |
| {0x20, 0x41, 0x39}, /* 219 (DB) */ |
| {0x20, 0x41, 0x41}, /* 220 (DC) */ |
| {0x20, 0x39, 0x41}, /* 221 (DD) */ |
| {0x20, 0x31, 0x41}, /* 222 (DE) */ |
| {0x20, 0x28, 0x41}, /* 223 (DF) */ |
| /* Low Intensity group - 72 colors in 3/3 saturation groups (E0H-F7H low) */ |
| {0x2D, 0x2D, 0x41}, /* 223 (E0) */ |
| {0x31, 0x2D, 0x41}, /* 224 (E1) */ |
| {0x35, 0x2D, 0x41}, /* 225 (E2) */ |
| {0x3D, 0x2D, 0x41}, /* 226 (E3) */ |
| {0x41, 0x2D, 0x41}, /* 227 (E4) */ |
| {0x41, 0x2D, 0x3D}, /* 228 (E5) */ |
| {0x41, 0x2D, 0x35}, /* 229 (E6) */ |
| {0x41, 0x2D, 0x31}, /* 230 (E7) */ |
| {0x41, 0x2D, 0x2D}, /* 231 (E8) */ |
| {0x41, 0x31, 0x2D}, /* 232 (E9) */ |
| {0x41, 0x35, 0x2D}, /* 233 (EA) */ |
| {0x41, 0x3D, 0x2D}, /* 234 (EB) */ |
| {0x41, 0x41, 0x2D}, /* 235 (EC) */ |
| {0x3D, 0x41, 0x2D}, /* 236 (ED) */ |
| {0x35, 0x41, 0x2D}, /* 237 (EE) */ |
| {0x31, 0x41, 0x2D}, /* 238 (EF) */ |
| {0x2D, 0x41, 0x2D}, /* 239 (F0) */ |
| {0x2D, 0x41, 0x31}, /* 240 (F1) */ |
| {0x2D, 0x41, 0x35}, /* 241 (F2) */ |
| {0x2D, 0x41, 0x3D}, /* 242 (F3) */ |
| {0x2D, 0x41, 0x41}, /* 243 (F4) */ |
| {0x2D, 0x3D, 0x41}, /* 244 (F5) */ |
| {0x2D, 0x35, 0x41}, /* 245 (F6) */ |
| {0x2D, 0x31, 0x41}, /* 246 (F7) */ |
| /* Fill up remainder of palettes with black */ |
| {0,0,0} |
| }; |
| |
| /* |
| * Mode 18 Default Color Register Setting |
| * DAC palette registers, converted from actual 18 bit color to 24. |
| * |
| * This palette is the dos default, converted from 18 bit color to 24. |
| * It contains only 64 entries of colors--all others are zeros. |
| * --Robert 'Admiral' Coeyman |
| */ |
| static PALETTEENTRY vga_def64_palette[256]={ |
| /* red green blue */ |
| {0x00, 0x00, 0x00}, /* 0x00 Black */ |
| {0x00, 0x00, 0xaa}, /* 0x01 Blue */ |
| {0x00, 0xaa, 0x00}, /* 0x02 Green */ |
| {0x00, 0xaa, 0xaa}, /* 0x03 Cyan */ |
| {0xaa, 0x00, 0x00}, /* 0x04 Red */ |
| {0xaa, 0x00, 0xaa}, /* 0x05 Magenta */ |
| {0xaa, 0xaa, 0x00}, /* 0x06 */ |
| {0xaa, 0xaa, 0xaa}, /* 0x07 White (Light Gray) */ |
| {0x00, 0x00, 0x55}, /* 0x08 */ |
| {0x00, 0x00, 0xff}, /* 0x09 */ |
| {0x00, 0xaa, 0x55}, /* 0x0a */ |
| {0x00, 0xaa, 0xff}, /* 0x0b */ |
| {0xaa, 0x00, 0x55}, /* 0x0c */ |
| {0xaa, 0x00, 0xff}, /* 0x0d */ |
| {0xaa, 0xaa, 0x55}, /* 0x0e */ |
| {0xaa, 0xaa, 0xff}, /* 0x0f */ |
| {0x00, 0x55, 0x00}, /* 0x10 */ |
| {0x00, 0x55, 0xaa}, /* 0x11 */ |
| {0x00, 0xff, 0x00}, /* 0x12 */ |
| {0x00, 0xff, 0xaa}, /* 0x13 */ |
| {0xaa, 0x55, 0x00}, /* 0x14 Brown */ |
| {0xaa, 0x55, 0xaa}, /* 0x15 */ |
| {0xaa, 0xff, 0x00}, /* 0x16 */ |
| {0xaa, 0xff, 0xaa}, /* 0x17 */ |
| {0x00, 0x55, 0x55}, /* 0x18 */ |
| {0x00, 0x55, 0xff}, /* 0x19 */ |
| {0x00, 0xff, 0x55}, /* 0x1a */ |
| {0x00, 0xff, 0xff}, /* 0x1b */ |
| {0xaa, 0x55, 0x55}, /* 0x1c */ |
| {0xaa, 0x55, 0xff}, /* 0x1d */ |
| {0xaa, 0xff, 0x55}, /* 0x1e */ |
| {0xaa, 0xff, 0xff}, /* 0x1f */ |
| {0x55, 0x00, 0x00}, /* 0x20 */ |
| {0x55, 0x00, 0xaa}, /* 0x21 */ |
| {0x55, 0xaa, 0x00}, /* 0x22 */ |
| {0x55, 0xaa, 0xaa}, /* 0x23 */ |
| {0xff, 0x00, 0x00}, /* 0x24 */ |
| {0xff, 0x00, 0xaa}, /* 0x25 */ |
| {0xff, 0xaa, 0x00}, /* 0x26 */ |
| {0xff, 0xaa, 0xaa}, /* 0x27 */ |
| {0x55, 0x00, 0x55}, /* 0x28 */ |
| {0x55, 0x00, 0xff}, /* 0x29 */ |
| {0x55, 0xaa, 0x55}, /* 0x2a */ |
| {0x55, 0xaa, 0xff}, /* 0x2b */ |
| {0xff, 0x00, 0x55}, /* 0x2c */ |
| {0xff, 0x00, 0xff}, /* 0x2d */ |
| {0xff, 0xaa, 0x55}, /* 0x2e */ |
| {0xff, 0xaa, 0xff}, /* 0x2f */ |
| {0x55, 0x55, 0x00}, /* 0x30 */ |
| {0x55, 0x55, 0xaa}, /* 0x31 */ |
| {0x55, 0xff, 0x00}, /* 0x32 */ |
| {0x55, 0xff, 0xaa}, /* 0x33 */ |
| {0xff, 0x55, 0x00}, /* 0x34 */ |
| {0xff, 0x55, 0xaa}, /* 0x35 */ |
| {0xff, 0xff, 0x00}, /* 0x36 */ |
| {0xff, 0xff, 0xaa}, /* 0x37 */ |
| {0x55, 0x55, 0x55}, /* 0x38 Dark Gray */ |
| {0x55, 0x55, 0xff}, /* 0x39 Light Blue */ |
| {0x55, 0xff, 0x55}, /* 0x3a Light Green */ |
| {0x55, 0xff, 0xff}, /* 0x3b Light Cyan */ |
| {0xff, 0x55, 0x55}, /* 0x3c Light Red */ |
| {0xff, 0x55, 0xff}, /* 0x3d Light Magenta */ |
| {0xff, 0xff, 0x55}, /* 0x3e Yellow */ |
| {0xff, 0xff, 0xff}, /* 0x3f White */ |
| {0,0,0} /* The next 192 entries are all zeros */ |
| }; |
| |
| static HANDLE VGA_timer; |
| static HANDLE VGA_timer_thread; |
| |
| /* set the timer rate; called in the polling thread context */ |
| static void CALLBACK set_timer_rate( ULONG_PTR arg ) |
| { |
| LARGE_INTEGER when; |
| |
| when.u.LowPart = when.u.HighPart = 0; |
| SetWaitableTimer( VGA_timer, &when, arg, VGA_Poll, 0, FALSE ); |
| } |
| |
| static DWORD CALLBACK VGA_TimerThread( void *dummy ) |
| { |
| for (;;) SleepEx( INFINITE, TRUE ); |
| return 0; |
| } |
| |
| static void VGA_DeinstallTimer(void) |
| { |
| if (VGA_timer_thread) |
| { |
| /* |
| * Make sure the update thread is not holding |
| * system resources when we kill it. |
| * |
| * Now, we only need to worry about update thread |
| * getting terminated while in EnterCriticalSection |
| * or WaitForMultipleObjectsEx. |
| * |
| * FIXME: Is this a problem? |
| */ |
| EnterCriticalSection(&vga_lock); |
| |
| CancelWaitableTimer( VGA_timer ); |
| CloseHandle( VGA_timer ); |
| TerminateThread( VGA_timer_thread, 0 ); |
| CloseHandle( VGA_timer_thread ); |
| VGA_timer_thread = 0; |
| |
| LeaveCriticalSection(&vga_lock); |
| |
| /* |
| * Synchronize display. This makes sure that |
| * changes to display become visible even if program |
| * terminates before update thread had time to run. |
| */ |
| VGA_Poll( 0, 0, 0 ); |
| } |
| } |
| |
| static void VGA_InstallTimer(unsigned Rate) |
| { |
| if (!VGA_timer_thread) |
| { |
| VGA_timer = CreateWaitableTimerA( NULL, FALSE, NULL ); |
| VGA_timer_thread = CreateThread( NULL, 0, VGA_TimerThread, NULL, 0, NULL ); |
| } |
| QueueUserAPC( set_timer_rate, VGA_timer_thread, (ULONG_PTR)Rate ); |
| } |
| |
| static BOOL VGA_IsTimerRunning(void) |
| { |
| return VGA_timer_thread != 0; |
| } |
| |
| static HANDLE VGA_AlphaConsole(void) |
| { |
| /* this assumes that no Win32 redirection has taken place, but then again, |
| * only 16-bit apps are likely to use this part of Wine... */ |
| return GetStdHandle(STD_OUTPUT_HANDLE); |
| } |
| |
| static char*VGA_AlphaBuffer(void) |
| { |
| return (char *)0xb8000; |
| } |
| |
| /*** GRAPHICS MODE ***/ |
| |
| typedef struct { |
| unsigned Xres, Yres, Depth; |
| BOOL ret; |
| } ModeSet; |
| |
| |
| /********************************************************************** |
| * VGA_SyncWindow |
| * |
| * Copy VGA window into framebuffer (if argument is TRUE) or |
| * part of framebuffer into VGA window (if argument is FALSE). |
| */ |
| static void VGA_SyncWindow( BOOL target_is_fb ) |
| { |
| int size = vga_fb_window_size; |
| |
| /* Window does not overlap framebuffer. */ |
| if (vga_fb_window >= vga_fb_size) |
| return; |
| |
| /* Check if window overlaps framebuffer only partially. */ |
| if (vga_fb_size - vga_fb_window < vga_fb_window_size) |
| size = vga_fb_size - vga_fb_window; |
| |
| if (target_is_fb) |
| memmove( vga_fb_data + vga_fb_window, vga_fb_window_data, size ); |
| else |
| memmove( vga_fb_window_data, vga_fb_data + vga_fb_window, size ); |
| } |
| |
| |
| static void WINAPI VGA_DoExit(ULONG_PTR arg) |
| { |
| VGA_DeinstallTimer(); |
| IDirectDrawSurface_SetPalette(lpddsurf,NULL); |
| IDirectDrawSurface_Release(lpddsurf); |
| lpddsurf=NULL; |
| IDirectDrawPalette_Release(lpddpal); |
| lpddpal=NULL; |
| IDirectDraw_Release(lpddraw); |
| lpddraw=NULL; |
| } |
| |
| static void WINAPI VGA_DoSetMode(ULONG_PTR arg) |
| { |
| HRESULT res; |
| ModeSet *par = (ModeSet *)arg; |
| par->ret = FALSE; |
| |
| if (lpddraw) VGA_DoExit(0); |
| if (!lpddraw) { |
| res = DirectDrawCreate(NULL,&lpddraw,NULL); |
| if (!lpddraw) { |
| ERR("DirectDraw is not available (res = 0x%x)\n",res); |
| return; |
| } |
| if (!vga_hwnd) { |
| vga_hwnd = CreateWindowExA(0,"STATIC","WINEDOS VGA", |
| WS_POPUP|WS_VISIBLE|SS_NOTIFY,0,0, |
| par->Xres,par->Yres,0,0,0,NULL); |
| if (!vga_hwnd) { |
| ERR("Failed to create user window.\n"); |
| IDirectDraw_Release(lpddraw); |
| lpddraw=NULL; |
| return; |
| } |
| } |
| else |
| SetWindowPos(vga_hwnd,0,0,0,par->Xres,par->Yres,SWP_NOMOVE|SWP_NOZORDER); |
| |
| res=IDirectDraw_SetCooperativeLevel(lpddraw,vga_hwnd,DDSCL_FULLSCREEN|DDSCL_EXCLUSIVE); |
| if (res != S_OK) { |
| ERR("Could not set cooperative level to exclusive (0x%x)\n",res); |
| } |
| |
| res=IDirectDraw_SetDisplayMode(lpddraw,par->Xres,par->Yres,par->Depth); |
| if (res != S_OK) { |
| ERR("DirectDraw does not support requested display mode (%dx%dx%d), res = 0x%x!\n",par->Xres,par->Yres,par->Depth,res); |
| IDirectDraw_Release(lpddraw); |
| lpddraw=NULL; |
| return; |
| } |
| |
| res=IDirectDraw_CreatePalette(lpddraw,DDPCAPS_8BIT,NULL,&lpddpal,NULL); |
| if (res != S_OK) { |
| ERR("Could not create palette (res = 0x%x)\n",res); |
| IDirectDraw_Release(lpddraw); |
| lpddraw=NULL; |
| return; |
| } |
| |
| res=IDirectDrawPalette_SetEntries(lpddpal,0,0,vga_fb_palette_size,vga_fb_palette); |
| if (res != S_OK) { |
| ERR("Could not set default palette entries (res = 0x%x)\n", res); |
| } |
| |
| memset(&sdesc,0,sizeof(sdesc)); |
| sdesc.dwSize=sizeof(sdesc); |
| sdesc.dwFlags = DDSD_CAPS; |
| sdesc.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE; |
| res=IDirectDraw_CreateSurface(lpddraw,&sdesc,&lpddsurf,NULL); |
| if (res != S_OK || !lpddsurf) { |
| ERR("DirectDraw surface is not available\n"); |
| IDirectDraw_Release(lpddraw); |
| lpddraw=NULL; |
| return; |
| } |
| IDirectDrawSurface_SetPalette(lpddsurf,lpddpal); |
| vga_retrace_vertical = vga_retrace_horizontal = FALSE; |
| /* poll every 20ms (50fps should provide adequate responsiveness) */ |
| VGA_InstallTimer(20); |
| } |
| par->ret = TRUE; |
| return; |
| } |
| |
| /**********************************************************************\ |
| * 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; |
| } |
| |
| static BOOL VGA_SetGraphicMode(WORD mode) |
| { |
| ModeSet par; |
| int newSize; |
| |
| /* 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 = vga_fb_width * ((vga_fb_depth + 7) / 8); |
| |
| newSize = vga_fb_width * vga_fb_height * ((vga_fb_depth + 7) / 8); |
| if(newSize < 256 * 1024) |
| newSize = 256 * 1024; |
| |
| if(vga_fb_size < newSize) { |
| HeapFree(GetProcessHeap(), 0, vga_fb_data); |
| vga_fb_data = HeapAlloc(GetProcessHeap(), 0, newSize); |
| vga_fb_size = newSize; |
| } |
| |
| 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; |
| } |
| |
| /* Setup window */ |
| if(vga_fb_depth >= 8) |
| { |
| vga_fb_window_data = VGA_WINDOW_START; |
| vga_fb_window_size = VGA_WINDOW_SIZE; |
| vga_fb_palette = vga_def_palette; |
| vga_fb_palette_size = 256; |
| } |
| else |
| { |
| vga_fb_window_data = CGA_WINDOW_START; |
| vga_fb_window_size = CGA_WINDOW_SIZE; |
| if(vga_fb_depth == 2) |
| { |
| /* Select default 2 bit CGA palette */ |
| vga_fb_palette = cga_palette1; |
| vga_fb_palette_size = 4; |
| } |
| else |
| { |
| /* Top of VGA palette is same as 4 bit CGA palette */ |
| vga_fb_palette = vga_def_palette; |
| vga_fb_palette_size = 16; |
| } |
| |
| vga_fb_palette_index = 0; |
| vga_fb_bright = 0; |
| } |
| |
| /* Clean the HW buffer */ |
| memset(vga_fb_window_data, 0x00, vga_fb_window_size); |
| |
| /* Reset window start */ |
| VGA_SetWindowStart(0); |
| |
| par.Depth = (vga_fb_depth < 8) ? 8 : vga_fb_depth; |
| |
| MZ_RunInThread(VGA_DoSetMode, (ULONG_PTR)&par); |
| return par.ret; |
| } |
| |
| BOOL 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 TRUE; /* assume all good & return TRUE */ |
| } |
| |
| BOOL VGA_GetMode(unsigned *Height, unsigned *Width, unsigned *Depth) |
| { |
| if (!lpddraw) return FALSE; |
| if (!lpddsurf) return FALSE; |
| if (Height) *Height=sdesc.dwHeight; |
| if (Width) *Width=sdesc.dwWidth; |
| if (Depth) *Depth=sdesc.ddpfPixelFormat.u1.dwRGBBitCount; |
| return TRUE; |
| } |
| |
| static void VGA_Exit(void) |
| { |
| if (lpddraw) MZ_RunInThread(VGA_DoExit, 0); |
| } |
| |
| void VGA_SetPalette(PALETTEENTRY*pal,int start,int len) |
| { |
| if (!lpddraw) return; |
| IDirectDrawPalette_SetEntries(lpddpal,0,start,len,pal); |
| } |
| |
| /* set a single [char wide] color in 16 color mode. */ |
| void VGA_SetColor16(int reg,int color) |
| { |
| PALETTEENTRY *pal; |
| |
| if (!lpddraw) return; |
| pal= &vga_def64_palette[color]; |
| IDirectDrawPalette_SetEntries(lpddpal,0,reg,1,pal); |
| vga_16_palette[reg]=(char)color; |
| } |
| |
| /* Get a single [char wide] color in 16 color mode. */ |
| char VGA_GetColor16(int reg) |
| { |
| |
| if (!lpddraw) return 0; |
| return vga_16_palette[reg]; |
| } |
| |
| /* set all 17 [char wide] colors at once in 16 color mode. */ |
| void VGA_Set16Palette(char *Table) |
| { |
| PALETTEENTRY *pal; |
| int c; |
| |
| if (!lpddraw) return; /* return if we're in text only mode */ |
| memcpy( Table, vga_16_palette, 17 ); /* copy the entries into the table */ |
| |
| for (c=0; c<17; c++) { /* 17 entries */ |
| pal= &vga_def64_palette[(int)vga_16_palette[c]]; /* get color */ |
| IDirectDrawPalette_SetEntries(lpddpal,0,c,1,pal); /* set entry */ |
| TRACE("Palette register %d set to %d\n",c,(int)vga_16_palette[c]); |
| } /* end of the counting loop */ |
| } |
| |
| /* Get all 17 [ char wide ] colors at once in 16 color mode. */ |
| void VGA_Get16Palette(char *Table) |
| { |
| |
| if (!lpddraw) return; /* return if we're in text only mode */ |
| memcpy( vga_16_palette, Table, 17 ); /* copy the entries into the table */ |
| } |
| |
| static LPSTR VGA_Lock(unsigned*Pitch,unsigned*Height,unsigned*Width,unsigned*Depth) |
| { |
| if (!lpddraw) return NULL; |
| if (!lpddsurf) return NULL; |
| if (IDirectDrawSurface_Lock(lpddsurf,NULL,&sdesc,0,0) != S_OK) { |
| ERR("could not lock surface!\n"); |
| return NULL; |
| } |
| if (Pitch) *Pitch=sdesc.u1.lPitch; |
| if (Height) *Height=sdesc.dwHeight; |
| if (Width) *Width=sdesc.dwWidth; |
| if (Depth) *Depth=sdesc.ddpfPixelFormat.u1.dwRGBBitCount; |
| return sdesc.lpSurface; |
| } |
| |
| static void VGA_Unlock(void) |
| { |
| IDirectDrawSurface_Unlock(lpddsurf,sdesc.lpSurface); |
| } |
| |
| /* |
| * Set start of 64k window at 0xa0000 in bytes. |
| * If value is -1, initialize color plane support. |
| * If value is >= 0, window contains direct copy of framebuffer. |
| */ |
| void VGA_SetWindowStart(int start) |
| { |
| if(start == vga_fb_window) |
| return; |
| |
| EnterCriticalSection(&vga_lock); |
| |
| if(vga_fb_window == -1) |
| FIXME("Remove VGA memory emulation.\n"); |
| else |
| VGA_SyncWindow( TRUE ); |
| |
| vga_fb_window = start; |
| |
| if(vga_fb_window == -1) |
| FIXME("Install VGA memory emulation.\n"); |
| else |
| VGA_SyncWindow( FALSE ); |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| /* |
| * Get start of 64k window at 0xa0000 in bytes. |
| * Value is -1 in color plane modes. |
| */ |
| int VGA_GetWindowStart(void) |
| { |
| return vga_fb_window; |
| } |
| |
| |
| /********************************************************************** |
| * VGA_DoShowMouse |
| * |
| * Callback for VGA_ShowMouse. |
| */ |
| static void WINAPI VGA_DoShowMouse( ULONG_PTR show ) |
| { |
| INT rv; |
| |
| do |
| { |
| rv = ShowCursor( show ); |
| } |
| while( show ? (rv < 0) : (rv >= 0) ); |
| } |
| |
| |
| /********************************************************************** |
| * VGA_ShowMouse |
| * |
| * If argument is TRUE, unconditionally show mouse cursor. |
| * If argument is FALSE, unconditionally hide mouse cursor. |
| * This only works in graphics mode. |
| */ |
| void VGA_ShowMouse( BOOL show ) |
| { |
| if (lpddraw) |
| MZ_RunInThread( VGA_DoShowMouse, (ULONG_PTR)show ); |
| } |
| |
| |
| /********************************************************************** |
| * VGA_UpdatePalette |
| * |
| * Update the current palette |
| * |
| * Note: When updating the current CGA palette, palette index 0 |
| * refers to palette2, and index 1 is palette1 (default palette) |
| */ |
| void VGA_UpdatePalette(void) |
| { |
| /* Figure out which palette is used now */ |
| if(vga_fb_bright) |
| { |
| if(vga_fb_palette_index == 0) |
| { |
| vga_fb_palette = cga_palette2_bright; |
| } |
| else if(vga_fb_palette_index == 1) |
| { |
| vga_fb_palette = cga_palette1_bright; |
| } |
| } |
| else |
| { |
| if(vga_fb_palette_index == 0) |
| { |
| vga_fb_palette = cga_palette2; |
| } |
| else if(vga_fb_palette_index == 1) |
| { |
| vga_fb_palette = cga_palette1; |
| } |
| } |
| |
| /* Now update the palette */ |
| VGA_SetPalette(vga_fb_palette,0,4); |
| } |
| |
| /********************************************************************** |
| * VGA_SetBright |
| * |
| * Select if using a "bright" palette or not. |
| * This is a property of the CGA controller |
| */ |
| void VGA_SetBright(BOOL bright) |
| { |
| TRACE("%i\n", bright); |
| |
| /* Remember the "bright" value used by the CGA controller */ |
| vga_fb_bright = bright; |
| } |
| |
| /********************************************************************** |
| * VGA_SetEnabled |
| * |
| * Select if output is enabled or disabled |
| * This is a property of the CGA controller |
| */ |
| static void VGA_SetEnabled(BOOL enabled) |
| { |
| TRACE("%i\n", enabled); |
| |
| /* Check if going from enabled to disabled */ |
| if(vga_fb_enabled && !enabled) |
| { |
| /* Clear frame buffer */ |
| memset(vga_fb_window_data, 0x00, vga_fb_window_size); |
| } |
| |
| /* Remember the "enabled" value */ |
| vga_fb_enabled = enabled; |
| } |
| |
| /********************************************************************** |
| * VGA_SetPaletteIndex |
| * |
| * Select the index of the palette which is currently in use |
| * This is a property of the CGA controller |
| */ |
| void VGA_SetPaletteIndex(unsigned index) |
| { |
| TRACE("%i\n", index); |
| |
| /* Remember the palette index, which is only used by CGA for now */ |
| vga_fb_palette_index = index; |
| } |
| |
| /********************************************************************** |
| * VGA_WritePixel |
| * |
| * Write data to the framebuffer |
| * This is a property of the CGA controller, but might be supported |
| * later by other framebuffer types |
| */ |
| void VGA_WritePixel(unsigned color, unsigned page, unsigned col, unsigned row) |
| { |
| int off; |
| int bits; |
| int pos; |
| |
| /* Calculate CGA byte offset */ |
| char *data = vga_fb_window_data; |
| off = row & 1 ? (8 * 1024) : 0; |
| off += (80 * (row/2)); |
| off += col/4; |
| |
| /* Calculate bits offset */ |
| pos = 6 - (col%4 * 2); |
| |
| /* Clear current data */ |
| bits = 0x03 << pos; |
| data[off] &= ~bits; |
| |
| /* Set new data */ |
| bits = color << pos; |
| data[off] |= bits; |
| } |
| |
| /*** TEXT MODE ***/ |
| |
| /* prepare the text mode video memory copy that is used to only |
| * update the video memory line that did get updated. */ |
| static void VGA_PrepareVideoMemCopy(unsigned Xres, unsigned Yres) |
| { |
| char *p, *p2; |
| unsigned int i; |
| |
| /* |
| * Allocate space for char + attr. |
| */ |
| |
| if (vga_text_old) |
| vga_text_old = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, |
| vga_text_old, Xres * Yres * 2 ); |
| else |
| vga_text_old = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, |
| Xres * Yres * 2 ); |
| p = VGA_AlphaBuffer(); |
| p2 = vga_text_old; |
| |
| /* make sure the video mem copy contains the exact opposite of our |
| * actual text mode memory area to make sure the screen |
| * does get updated fully initially */ |
| for (i=0; i < Xres*Yres*2; i++) |
| *p2++ = *p++ ^ 0xff; /* XOR it */ |
| } |
| |
| /********************************************************************** |
| * VGA_SetAlphaMode |
| * |
| * Set VGA emulation to text mode. |
| */ |
| void VGA_SetAlphaMode(unsigned Xres,unsigned Yres) |
| { |
| VGA_Exit(); |
| VGA_DeinstallTimer(); |
| |
| VGA_PrepareVideoMemCopy(Xres, Yres); |
| vga_text_width = Xres; |
| vga_text_height = Yres; |
| |
| if (vga_text_x >= vga_text_width || vga_text_y >= vga_text_height) |
| VGA_SetCursorPos(0,0); |
| |
| if(vga_text_console) { |
| COORD size; |
| size.X = Xres; |
| size.Y = Yres; |
| SetConsoleScreenBufferSize( VGA_AlphaConsole(), size ); |
| |
| /* poll every 30ms (33fps should provide adequate responsiveness) */ |
| VGA_InstallTimer(30); |
| } |
| } |
| |
| /********************************************************************** |
| * VGA_InitAlphaMode |
| * |
| * Initialize VGA text mode handling and return default text mode. |
| * This function does not set VGA emulation to text mode. |
| */ |
| void VGA_InitAlphaMode(unsigned*Xres,unsigned*Yres) |
| { |
| CONSOLE_SCREEN_BUFFER_INFO info; |
| |
| if(GetConsoleScreenBufferInfo( VGA_AlphaConsole(), &info )) |
| { |
| vga_text_console = TRUE; |
| vga_text_x = info.dwCursorPosition.X; |
| vga_text_y = info.dwCursorPosition.Y; |
| vga_text_attr = info.wAttributes; |
| *Xres = info.dwSize.X; |
| *Yres = info.dwSize.Y; |
| } |
| else |
| { |
| vga_text_console = FALSE; |
| vga_text_x = 0; |
| vga_text_y = 0; |
| vga_text_attr = 0x0f; |
| *Xres = 80; |
| *Yres = 25; |
| } |
| } |
| |
| /********************************************************************** |
| * VGA_GetAlphaMode |
| * |
| * Get current text mode. Returns TRUE and sets resolution if |
| * any VGA text mode has been initialized. |
| */ |
| BOOL VGA_GetAlphaMode(unsigned*Xres,unsigned*Yres) |
| { |
| if (vga_text_width != 0 && vga_text_height != 0) { |
| *Xres = vga_text_width; |
| *Yres = vga_text_height; |
| return TRUE; |
| } else |
| return FALSE; |
| } |
| |
| void VGA_SetCursorShape(unsigned char start_options, unsigned char end) |
| { |
| CONSOLE_CURSOR_INFO cci; |
| |
| /* standard cursor settings: |
| * 0x0607 == CGA, 0x0b0c == monochrome, 0x0d0e == EGA/VGA */ |
| |
| /* calculate percentage from bottom - assuming VGA (bottom 0x0e) */ |
| cci.dwSize = ((end & 0x1f) - (start_options & 0x1f))/0x0e * 100; |
| if (!cci.dwSize) cci.dwSize++; /* NULL cursor would make SCCI() fail ! */ |
| cci.bVisible = ((start_options & 0x60) != 0x20); /* invisible ? */ |
| |
| SetConsoleCursorInfo(VGA_AlphaConsole(),&cci); |
| } |
| |
| void VGA_SetCursorPos(unsigned X,unsigned Y) |
| { |
| vga_text_x = X; |
| vga_text_y = Y; |
| } |
| |
| void VGA_GetCursorPos(unsigned*X,unsigned*Y) |
| { |
| if (X) *X = vga_text_x; |
| if (Y) *Y = vga_text_y; |
| } |
| |
| static void VGA_PutCharAt(unsigned x, unsigned y, BYTE ascii, int 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) |
| { |
| EnterCriticalSection(&vga_lock); |
| |
| while (count--) |
| VGA_PutCharAt(X + count, Y, ch, attr); |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| void VGA_PutChar(BYTE ascii) |
| { |
| DWORD w; |
| |
| EnterCriticalSection(&vga_lock); |
| |
| switch(ascii) { |
| case '\b': |
| if (vga_text_x) |
| { |
| vga_text_x--; |
| VGA_PutCharAt(vga_text_x, vga_text_y, ' ', 0); |
| } |
| break; |
| |
| case '\t': |
| vga_text_x += ((vga_text_x + 8) & ~7) - vga_text_x; |
| break; |
| |
| case '\n': |
| vga_text_y++; |
| vga_text_x = 0; |
| break; |
| |
| case '\a': |
| break; |
| |
| case '\r': |
| vga_text_x = 0; |
| break; |
| |
| default: |
| VGA_PutCharAt(vga_text_x, vga_text_y, ascii, vga_text_attr); |
| vga_text_x++; |
| } |
| |
| if (vga_text_x >= vga_text_width) |
| { |
| vga_text_x = 0; |
| vga_text_y++; |
| } |
| |
| if (vga_text_y >= vga_text_height) |
| { |
| vga_text_y = vga_text_height - 1; |
| VGA_ScrollUpText( 0, 0, |
| vga_text_height - 1, vga_text_width - 1, |
| 1, vga_text_attr ); |
| } |
| |
| /* |
| * If we don't have a console, write directly to standard output. |
| */ |
| if(!vga_text_console) |
| WriteFile(VGA_AlphaConsole(), &ascii, 1, &w, NULL); |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| void VGA_ClearText(unsigned row1, unsigned col1, |
| unsigned row2, unsigned col2, |
| BYTE attr) |
| { |
| unsigned x, y; |
| |
| EnterCriticalSection(&vga_lock); |
| |
| for(y=row1; y<=row2; y++) |
| for(x=col1; x<=col2; x++) |
| VGA_PutCharAt(x, y, 0x20, attr); |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| void VGA_ScrollUpText(unsigned row1, unsigned col1, |
| unsigned row2, unsigned col2, |
| unsigned lines, BYTE attr) |
| { |
| char *buffer = VGA_AlphaBuffer(); |
| unsigned y; |
| |
| EnterCriticalSection(&vga_lock); |
| |
| /* |
| * Scroll buffer. |
| */ |
| for (y = row1; y <= row2 - lines; y++) |
| memmove( buffer + col1 + y * vga_text_width * 2, |
| buffer + col1 + (y + lines) * vga_text_width * 2, |
| (col2 - col1 + 1) * 2 ); |
| |
| /* |
| * Fill exposed lines. |
| */ |
| for (y = max(row1, row2 - lines + 1); y <= row2; y++) |
| VGA_WriteChars( col1, y, ' ', attr, col2 - col1 + 1 ); |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| void VGA_ScrollDownText(unsigned row1, unsigned col1, |
| unsigned row2, unsigned col2, |
| unsigned lines, BYTE attr) |
| { |
| char *buffer = VGA_AlphaBuffer(); |
| unsigned y; |
| |
| EnterCriticalSection(&vga_lock); |
| |
| /* |
| * Scroll buffer. |
| */ |
| for (y = row2; y >= row1 + lines; y--) |
| memmove( buffer + col1 + y * vga_text_width * 2, |
| buffer + col1 + (y - lines) * vga_text_width * 2, |
| (col2 - col1 + 1) * 2 ); |
| |
| /* |
| * Fill exposed lines. |
| */ |
| for (y = row1; y <= min(row1 + lines - 1, row2); y++) |
| VGA_WriteChars( col1, y, ' ', attr, col2 - col1 + 1 ); |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| void VGA_GetCharacterAtCursor(BYTE *ascii, BYTE *attr) |
| { |
| char *dat; |
| |
| dat = VGA_AlphaBuffer() + ((vga_text_width * vga_text_y + vga_text_x) * 2); |
| |
| *ascii = dat[0]; |
| *attr = dat[1]; |
| } |
| |
| |
| /*** CONTROL ***/ |
| |
| /* FIXME: optimize by doing this only if the data has actually changed |
| * (in a way similar to DIBSection, perhaps) */ |
| static void VGA_Poll_Graphics(void) |
| { |
| unsigned int Pitch, Height, Width, X, Y; |
| char *surf; |
| char *dat = vga_fb_data + vga_fb_offset; |
| int bpp = (vga_fb_depth + 7) / 8; |
| |
| surf = VGA_Lock(&Pitch,&Height,&Width,NULL); |
| if (!surf) return; |
| |
| /* |
| * Synchronize framebuffer contents. |
| */ |
| if (vga_fb_window != -1) |
| VGA_SyncWindow( TRUE ); |
| |
| /* |
| * 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 |
| * - Every second line has an offset of 8096 |
| */ |
| if(vga_fb_depth == 4 && vga_fb_width == 160 && vga_fb_height == 200){ |
| WORD off = 0; |
| BYTE bits = 4; |
| BYTE value; |
| for(Y=0; Y<vga_fb_height; Y++, surf+=(Pitch*2)){ |
| for(X=0; X<vga_fb_width; X++){ |
| off = Y & 1 ? (8 * 1024) : 0; |
| off += (80 * (Y/2)); |
| off += X/2; |
| value = (dat[off] >> bits) & 0xF; |
| surf[(X*4)+0] = value; |
| surf[(X*4)+1] = value; |
| surf[(X*4)+2] = value; |
| surf[(X*4)+3] = value; |
| surf[(X*4)+Pitch+0] = value; |
| surf[(X*4)+Pitch+1] = value; |
| surf[(X*4)+Pitch+2] = value; |
| surf[(X*4)+Pitch+3] = value; |
| bits -= 4; |
| bits &= 7; |
| } |
| } |
| } |
| |
| /* |
| * CGA framebuffer (320x200) |
| * This buffer is encoded as following: |
| * - 2 bits per color, 4 pixels per byte |
| * - 80 bytes per row |
| * - Every second line has an offset of 8096 |
| */ |
| else if(vga_fb_depth == 2 && vga_fb_width == 320 && vga_fb_height == 200){ |
| WORD off = 0; |
| BYTE bits = 6; |
| BYTE value; |
| /* Iterate over the rows */ |
| for(Y=0; Y<vga_fb_height; Y++, surf+=(Pitch*2)){ |
| for(X=0; X<vga_fb_width; X++){ |
| off = Y & 1 ? (8 * 1024) : 0; |
| off += (80 * (Y/2)); |
| off += X/4; |
| value = (dat[off] >> bits) & 0x3; |
| surf[(X*2)] = value; |
| surf[(X*2)+1] = value; |
| surf[(X*2)+Pitch] = value; |
| surf[(X*2)+Pitch+1] = value; |
| bits -= 2; |
| bits &= 7; |
| } |
| } |
| } |
| |
| /* |
| * Double VGA framebuffer (320x200 -> 640x400), if needed. |
| */ |
| else if(Height >= 2 * vga_fb_height && Width >= 2 * vga_fb_width && bpp == 1) |
| for (Y=0; Y<vga_fb_height; Y++,surf+=Pitch*2,dat+=vga_fb_pitch) |
| for (X=0; X<vga_fb_width; X++) { |
| BYTE value = dat[X]; |
| surf[X*2] = value; |
| surf[X*2+1] = value; |
| 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); |
| |
| VGA_Unlock(); |
| } |
| |
| static void VGA_Poll_Text(void) |
| { |
| char *dat, *old, *p_line; |
| unsigned int X, Y; |
| CHAR_INFO ch[256]; /* that should suffice for the largest text width */ |
| COORD siz, off; |
| SMALL_RECT dest; |
| HANDLE con = VGA_AlphaConsole(); |
| BOOL linechanged = FALSE; /* video memory area differs from stored copy? */ |
| |
| /* Synchronize cursor position. */ |
| off.X = vga_text_x; |
| off.Y = vga_text_y; |
| SetConsoleCursorPosition(con,off); |
| |
| dat = VGA_AlphaBuffer(); |
| old = vga_text_old; /* pointer to stored video mem copy */ |
| siz.X = vga_text_width; siz.Y = 1; |
| off.X = 0; off.Y = 0; |
| |
| /* copy from virtual VGA frame buffer to console */ |
| for (Y=0; Y<vga_text_height; Y++) { |
| linechanged = memcmp(dat, old, vga_text_width*2); |
| if (linechanged) |
| { |
| /*TRACE("line %d changed\n", Y);*/ |
| p_line = dat; |
| for (X=0; X<vga_text_width; X++) { |
| ch[X].Char.AsciiChar = *p_line++; |
| /* WriteConsoleOutputA doesn't like "dead" chars */ |
| if (ch[X].Char.AsciiChar == '\0') |
| ch[X].Char.AsciiChar = ' '; |
| ch[X].Attributes = *p_line++; |
| } |
| dest.Top=Y; dest.Bottom=Y; |
| dest.Left=0; dest.Right=vga_text_width+1; |
| WriteConsoleOutputA(con, ch, siz, off, &dest); |
| memcpy(old, dat, vga_text_width*2); |
| } |
| /* advance to next text line */ |
| dat += vga_text_width*2; |
| old += vga_text_width*2; |
| } |
| } |
| |
| static void CALLBACK VGA_Poll( LPVOID arg, DWORD low, DWORD high ) |
| { |
| EnterCriticalSection(&vga_lock); |
| |
| if (lpddraw) |
| VGA_Poll_Graphics(); |
| else |
| VGA_Poll_Text(); |
| |
| /* |
| * Fake start of retrace. |
| */ |
| vga_retrace_vertical = TRUE; |
| |
| LeaveCriticalSection(&vga_lock); |
| } |
| |
| static BYTE palreg,palcnt; |
| static PALETTEENTRY paldat; |
| |
| void VGA_ioport_out( WORD port, BYTE val ) |
| { |
| switch (port) { |
| /* General Register - Feature Control */ |
| case 0x3ba: |
| FIXME("Unsupported VGA register: general register - feature control 0x%04x (value 0x%02x)\n", port, val); |
| break; |
| /* Attribute Controller - Address/Other */ |
| case 0x3c0: |
| if (vga_address_3c0) |
| vga_index_3c0 = val; |
| else |
| FIXME("Unsupported index, VGA attribute controller register 0x3c0: 0x%02x (value 0x%02x)\n", |
| vga_index_3c0, val); |
| vga_address_3c0 = !vga_address_3c0; |
| break; |
| /* General Register - Misc output */ |
| case 0x3c2: |
| FIXME("Unsupported VGA register: general register - misc output 0x%04x (value 0x%02x)\n", port, val); |
| break; |
| /* General Register - Video subsystem enable */ |
| case 0x3c3: |
| FIXME("Unsupported VGA register: general register - video subsystem enable 0x%04x (value 0x%02x)\n", port, val); |
| break; |
| /* Sequencer Register - Address */ |
| case 0x3c4: |
| vga_index_3c4 = val; |
| break; |
| /* Sequencer Register - Other */ |
| case 0x3c5: |
| switch(vga_index_3c4) { |
| case 0x04: /* Sequencer: Memory Mode Register */ |
| if(vga_fb_depth == 8) |
| VGA_SetWindowStart((val & 8) ? 0 : -1); |
| else |
| FIXME("Memory Mode Register not supported in this mode.\n"); |
| break; |
| default: |
| FIXME("Unsupported index, VGA sequencer register 0x3c4: 0x%02x (value 0x%02x)\n", |
| vga_index_3c4, val); |
| } |
| break; |
| case 0x3c8: |
| palreg=val; palcnt=0; break; |
| case 0x3c9: |
| ((BYTE*)&paldat)[palcnt++]=val << 2; |
| if (palcnt==3) { |
| VGA_SetPalette(&paldat,palreg++,1); |
| palcnt=0; |
| } |
| break; |
| /* Graphics Controller Register - Address */ |
| case 0x3ce: |
| vga_index_3ce = val; |
| break; |
| /* Graphics Controller Register - Other */ |
| case 0x3cf: |
| FIXME("Unsupported index, VGA graphics controller register - other 0x3ce: 0x%02x (value 0x%02x)\n", |
| vga_index_3ce, val); |
| break; |
| /* CRT Controller Register - Index (MDA) */ |
| case 0x3b4: |
| /* CRT Controller Register - Index (CGA) */ |
| case 0x3d4: |
| vga_index_3d4 = val; |
| break; |
| /* CRT Controller Register - Other (MDA) */ |
| case 0x3b5: |
| /* CRT Controller Register - Other (CGA) */ |
| case 0x3d5: |
| FIXME("Unsupported index, VGA crt controller register 0x3b4/0x3d4: 0x%02x (value 0x%02x)\n", |
| vga_index_3d4, val); |
| break; |
| /* 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 |
| */ |
| |
| /* check bits 6 and 7 */ |
| if (val & 0xC0) |
| { |
| 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) != 0); |
| |
| /* 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 */ |
| } |
| |
| break; |
| |
| /* Colour control register (CGA) */ |
| case 0x3d9: |
| /* Set bright */ |
| VGA_SetBright((val & 0x10) != 0); |
| |
| /* Set palette index */ |
| VGA_SetPaletteIndex((val & 0x20) != 0); |
| |
| /* Now update the palette */ |
| VGA_UpdatePalette(); |
| break; |
| default: |
| FIXME("Unsupported VGA register: 0x%04x (value 0x%02x)\n", port, val); |
| } |
| } |
| |
| BYTE VGA_ioport_in( WORD port ) |
| { |
| BYTE ret; |
| |
| switch (port) { |
| /* Attribute Controller - Other */ |
| case 0x3c1: |
| FIXME("Unsupported index, VGA attribute controller register 0x3c0: 0x%02x\n", |
| vga_index_3c0); |
| return 0xff; |
| /* General Register - Input status 0 */ |
| case 0x3c2: |
| ret=0xff; |
| FIXME("Unsupported VGA register: general register - input status 0 0x%04x\n", port); |
| break; |
| /* General Register - Video subsystem enable */ |
| case 0x3c3: |
| ret=0xff; |
| FIXME("Unsupported VGA register: general register - video subsystem enable 0x%04x\n", port); |
| break; |
| /* Sequencer Register - Other */ |
| case 0x3c5: |
| switch(vga_index_3c4) { |
| case 0x04: /* Sequencer: Memory Mode Register */ |
| return (VGA_GetWindowStart() == -1) ? 0xf7 : 0xff; |
| default: |
| FIXME("Unsupported index, register 0x3c4: 0x%02x\n", |
| vga_index_3c4); |
| return 0xff; |
| } |
| /* General Register - DAC State */ |
| case 0x3c7: |
| ret=0xff; |
| FIXME("Unsupported VGA register: general register - DAC State 0x%04x\n", port); |
| break; |
| /* General Register - Feature control */ |
| case 0x3ca: |
| ret=0xff; |
| FIXME("Unsupported VGA register: general register - Feature control 0x%04x\n", port); |
| break; |
| /* General Register - Misc output */ |
| case 0x3cc: |
| ret=0xff; |
| FIXME("Unsupported VGA register: general register - Feature control 0x%04x\n", port); |
| break; |
| /* Graphics Controller Register - Other */ |
| case 0x3cf: |
| FIXME("Unsupported index, register 0x3ce: 0x%02x\n", |
| vga_index_3ce); |
| return 0xff; |
| /* CRT Controller Register - Other (MDA) */ |
| case 0x3b5: |
| /* CRT Controller Register - Other (CGA) */ |
| case 0x3d5: |
| FIXME("Unsupported index, VGA crt controller register 0x3b4/0x3d4: 0x%02x\n", |
| vga_index_3d4); |
| return 0xff; |
| /* General Register - Input status 1 (MDA) */ |
| case 0x3ba: |
| /* General Register - Input status 1 (CGA) */ |
| case 0x3da: |
| /* |
| * Read from this register resets register 0x3c0 address flip-flop. |
| */ |
| vga_address_3c0 = TRUE; |
| |
| /* |
| * Read from this register returns following bits: |
| * xxxx1xxx = Vertical retrace in progress if set. |
| * xxxxx1xx = Light pen switched on. |
| * xxxxxx1x = Light pen trigger set. |
| * xxxxxxx1 = Either vertical or horizontal retrace |
| * in progress if set. |
| */ |
| ret = 0; |
| if (vga_retrace_vertical) |
| ret |= 9; |
| if (vga_retrace_horizontal) |
| ret |= 3; |
| |
| /* |
| * If VGA mode has been set, vertical retrace is |
| * turned on once a frame and cleared after each read. |
| * This might cause applications that synchronize with |
| * vertical retrace to actually skip one frame but that |
| * is probably not a problem. |
| * |
| * If no VGA mode has been set, vertical retrace is faked |
| * by toggling the value after every read. |
| */ |
| if (VGA_IsTimerRunning()) |
| vga_retrace_vertical = FALSE; |
| else |
| vga_retrace_vertical = !vga_retrace_vertical; |
| |
| /* |
| * Toggle horizontal retrace. |
| */ |
| vga_retrace_horizontal = !vga_retrace_horizontal; |
| break; |
| |
| default: |
| ret=0xff; |
| FIXME("Unsupported VGA register: 0x%04x\n", port); |
| } |
| return ret; |
| } |
| |
| void VGA_Clean(void) |
| { |
| VGA_Exit(); |
| VGA_DeinstallTimer(); |
| } |
