/*
* VGA hardware emulation
- *
- * Copyright 1998 Ove Kåven (with some help from Marcus Meissner)
+ *
+ * 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
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
+#include <stdarg.h>
#include <string.h>
+
+#define NONAMELESSUNION
+#define NONAMELESSSTRUCT
+#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "wincon.h"
-#include "miscemu.h"
#include "dosexe.h"
#include "vga.h"
#include "ddraw.h"
static IDirectDrawSurface *lpddsurf;
static IDirectDrawPalette *lpddpal;
static DDSURFACEDESC sdesc;
-static LONG vga_polling,vga_refresh;
-static HANDLE poll_timer;
-static int vga_width;
-static int vga_height;
-static int vga_depth;
+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 */
+ {0x0012, 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 };
typedef HRESULT (WINAPI *DirectDrawCreateProc)(LPGUID,LPDIRECTDRAW *,LPUNKNOWN);
static DirectDrawCreateProc pDirectDrawCreate;
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 */
+};
+
/*
- * For simplicity, I'm creating a second palette.
- * 16 color accesses will use these pointers and insert
- * entries from the 64-color palette into the default
- * palette. --Robert 'Admiral' Coeyman
+ * 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 */
0x04, /* 4 - Red */
0x05, /* 5 - Magenta */
0x14, /* 6 - Brown */
- 0x07, /* 7 - Light gray */
+ 0x07, /* 7 - White (Light gray) */
0x38, /* 8 - Dark gray */
0x39, /* 9 - Light blue */
0x3a, /* A - Light green */
0x3c, /* C - Light red */
0x3d, /* D - Light magenta */
0x3e, /* E - Yellow */
- 0x3f, /* F - White */
+ 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 */
- {0x00, 0x00, 0x00}, /* 0 - Black */
- {0x00, 0x00, 0x80}, /* 1 - Blue */
- {0x00, 0x80, 0x00}, /* 2 - Green */
- {0x00, 0x80, 0x80}, /* 3 - Cyan */
- {0x80, 0x00, 0x00}, /* 4 - Red */
- {0x80, 0x00, 0x80}, /* 5 - Magenta */
- {0x80, 0x80, 0x00}, /* 6 - Brown */
- {0xC0, 0xC0, 0xC0}, /* 7 - Light gray */
- {0x80, 0x80, 0x80}, /* 8 - Dark gray */
- {0x00, 0x00, 0xFF}, /* 9 - Light blue */
- {0x00, 0xFF, 0x00}, /* A - Light green */
- {0x00, 0xFF, 0xFF}, /* B - Light cyan */
- {0xFF, 0x00, 0x00}, /* C - Light red */
- {0xFF, 0x00, 0xFF}, /* D - Light magenta */
- {0xFF, 0xFF, 0x00}, /* E - Yellow */
- {0xFF, 0xFF, 0xFF}, /* F - White */
- {0,0,0} /* FIXME: a series of continuous rainbow hues should follow */
+ /* 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}
};
-/*
- * 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
+/*
+ * 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 */
{0xaa, 0x00, 0x00}, /* 0x04 Red */
{0xaa, 0x00, 0xaa}, /* 0x05 Magenta */
{0xaa, 0xaa, 0x00}, /* 0x06 */
- {0xaa, 0xaa, 0xaa}, /* 0x07 Light Gray */
+ {0xaa, 0xaa, 0xaa}, /* 0x07 White (Light Gray) */
{0x00, 0x00, 0x55}, /* 0x08 */
{0x00, 0x00, 0xff}, /* 0x09 */
{0x00, 0xaa, 0x55}, /* 0x0a */
{
LARGE_INTEGER when;
- when.s.LowPart = when.s.HighPart = 0;
+ when.u.LowPart = when.u.HighPart = 0;
SetWaitableTimer( VGA_timer, &when, arg, VGA_Poll, 0, FALSE );
}
static DWORD CALLBACK VGA_TimerThread( void *dummy )
{
- for (;;) WaitForMultipleObjectsEx( 0, NULL, FALSE, INFINITE, TRUE );
+ 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 );
}
}
QueueUserAPC( set_timer_rate, VGA_timer_thread, (ULONG_PTR)Rate );
}
-HANDLE VGA_AlphaConsole(void)
+static BOOL VGA_IsTimerRunning(void)
+{
+ return VGA_timer_thread ? TRUE : FALSE;
+}
+
+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);
}
-char*VGA_AlphaBuffer(void)
+static char*VGA_AlphaBuffer(void)
{
- return DOSMEM_MapDosToLinear(0xb8000);
+ return (char *)0xb8000;
}
/*** GRAPHICS MODE ***/
int 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)
{
- LRESULT res;
- HWND hwnd;
+ HRESULT res;
ModeSet *par = (ModeSet *)arg;
par->ret=1;
- if (lpddraw) VGA_Exit();
+ if (lpddraw) VGA_DoExit(0);
if (!lpddraw) {
if (!pDirectDrawCreate)
{
}
res = pDirectDrawCreate(NULL,&lpddraw,NULL);
if (!lpddraw) {
- ERR("DirectDraw is not available (res = %lx)\n",res);
+ ERR("DirectDraw is not available (res = 0x%x)\n",res);
return;
}
- hwnd = CreateWindowExA(0,"STATIC","WINEDOS VGA",WS_POPUP|WS_BORDER|WS_CAPTION|WS_SYSMENU,0,0,par->Xres,par->Yres,0,0,0,NULL);
- if (!hwnd) {
- ERR("Failed to create user window.\n");
- }
- if ((res=IDirectDraw_SetCooperativeLevel(lpddraw,hwnd,DDSCL_FULLSCREEN|DDSCL_EXCLUSIVE))) {
- ERR("Could not set cooperative level to exclusive (%lx)\n",res);
+ 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);
}
- if ((res=IDirectDraw_SetDisplayMode(lpddraw,par->Xres,par->Yres,par->Depth))) {
- ERR("DirectDraw does not support requested display mode (%dx%dx%d), res = %lx!\n",par->Xres,par->Yres,par->Depth,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) {
- ERR("Could not create palette (res = %lx)\n",res);
+ if (res != S_OK) {
+ ERR("Could not create palette (res = 0x%x)\n",res);
IDirectDraw_Release(lpddraw);
lpddraw=NULL;
return;
}
- if ((res=IDirectDrawPalette_SetEntries(lpddpal,0,0,256,vga_def_palette))) {
- ERR("Could not set default palette entries (res = %lx)\n", res);
+
+ 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;
- if (IDirectDraw_CreateSurface(lpddraw,&sdesc,&lpddsurf,NULL)||(!lpddsurf)) {
+ 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_refresh=0;
+ vga_retrace_vertical = vga_retrace_horizontal = FALSE;
/* poll every 20ms (50fps should provide adequate responsiveness) */
VGA_InstallTimer(20);
}
return;
}
-int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
+/**********************************************************************\
+* 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;
+}
+
+const VGA_MODE *VGA_GetModeInfoList(void)
+{
+ return VGA_modelist;
+}
+
+int 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 0; /* assume all good & return zero */
+}
+
+int 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);
- vga_width = Xres;
- vga_height = Yres;
- vga_depth = Depth;
+ 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(Xres >= 640 || Yres >= 480) {
- par.Xres = Xres;
- par.Yres = Yres;
+ 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;
}
- par.Depth = (Depth < 8) ? 8 : Depth;
+ /* 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;
return 0;
}
-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;
-}
-
-void VGA_Exit(void)
+static void VGA_Exit(void)
{
if (lpddraw) MZ_RunInThread(VGA_DoExit, 0);
}
IDirectDrawPalette_SetEntries(lpddpal,0,start,len,pal);
}
-/* set a single color in 16 color mode. */
+/* set a single [char wide] color in 16 color mode. */
void VGA_SetColor16(int reg,int color)
{
PALETTEENTRY *pal;
vga_16_palette[reg]=(char)color;
}
-void VGA_SetQuadPalette(RGBQUAD*color,int start,int len)
+/* Get a single [char wide] color in 16 color mode. */
+char VGA_GetColor16(int reg)
{
- PALETTEENTRY pal[256];
- int c;
- if (!lpddraw) return;
- for (c=0; c<len; c++) {
- pal[c].peRed =color[c].rgbRed;
- pal[c].peGreen=color[c].rgbGreen;
- pal[c].peBlue =color[c].rgbBlue;
- pal[c].peFlags=0;
- }
- IDirectDrawPalette_SetEntries(lpddpal,0,start,len,pal);
+ 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 */
}
-LPSTR VGA_Lock(unsigned*Pitch,unsigned*Height,unsigned*Width,unsigned*Depth)
+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)) {
+ if (IDirectDrawSurface_Lock(lpddsurf,NULL,&sdesc,0,0) != S_OK) {
ERR("could not lock surface!\n");
return NULL;
}
return sdesc.lpSurface;
}
-void VGA_Unlock(void)
+static void VGA_Unlock(void)
{
IDirectDrawSurface_Unlock(lpddsurf,sdesc.lpSurface);
}
-/*** TEXT MODE ***/
+/*
+ * 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);
+}
-int VGA_SetAlphaMode(unsigned Xres,unsigned Yres)
+/*
+ * Get start of 64k window at 0xa0000 in bytes.
+ * Value is -1 in color plane modes.
+ */
+int VGA_GetWindowStart(void)
{
- COORD siz;
+ return vga_fb_window;
+}
- if (lpddraw) VGA_Exit();
- /* the xterm is slow, so refresh only every 200ms (5fps) */
- VGA_InstallTimer(200);
+/**********************************************************************
+ * VGA_DoShowMouse
+ *
+ * Callback for VGA_ShowMouse.
+ */
+static void WINAPI VGA_DoShowMouse( ULONG_PTR show )
+{
+ INT rv;
- siz.X = Xres;
- siz.Y = Yres;
- SetConsoleScreenBufferSize(VGA_AlphaConsole(),siz);
- return 0;
+ 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 == TRUE)
+ {
+ 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 == TRUE && enabled == FALSE)
+ {
+ /* 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;
}
-void VGA_GetAlphaMode(unsigned*Xres,unsigned*Yres)
+/**********************************************************************
+ * 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;
- GetConsoleScreenBufferInfo(VGA_AlphaConsole(),&info);
- if (Xres) *Xres=info.dwSize.X;
- if (Yres) *Yres=info.dwSize.Y;
+
+ 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;
+ }
}
-void VGA_SetCursorPos(unsigned X,unsigned Y)
+/**********************************************************************
+ * 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)
{
- COORD pos;
+ CONSOLE_CURSOR_INFO cci;
- if (!poll_timer) VGA_SetAlphaMode(80, 25);
- pos.X = X;
- pos.Y = Y;
- SetConsoleCursorPosition(VGA_AlphaConsole(),pos);
+ /* 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)
{
- CONSOLE_SCREEN_BUFFER_INFO info;
- GetConsoleScreenBufferInfo(VGA_AlphaConsole(),&info);
- if (X) *X=info.dwCursorPosition.X;
- if (Y) *Y=info.dwCursorPosition.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)
{
- unsigned XR, YR;
- char*dat;
+ 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++;
+ }
- VGA_GetAlphaMode(&XR, &YR);
- dat = VGA_AlphaBuffer() + ((XR*Y + X) * 2);
- /* FIXME: also call WriteConsoleOutputA, for better responsiveness */
- while (count--) {
- *dat++ = ch;
- if (attr>=0) *dat = attr;
- dat++;
+ 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 = DOSMEM_MapDosToLinear(0xa0000);
+ 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;
- if(vga_width == 320 && vga_depth <= 4)
- for (Y=0; Y<vga_height; Y++,surf+=Pitch*2,dat+=vga_width/8) {
- for(X=0; X<vga_width; X+=8) {
- int offset = X/8;
- int Z;
- for(Z=0; Z<8; Z++) {
- int b0 = (dat[offset] >> Z) & 0x1;
- int index = 7-Z;
- surf[(X+index)*2] = b0;
- surf[(X+index)*2+1] = b0;
- surf[(X+index)*2+Pitch] = b0;
- surf[(X+index)*2+Pitch+1] = b0;
- }
+ /*
+ * 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;
}
}
-
- if(vga_width == 320 && vga_depth == 8)
- for (Y=0; Y<vga_height; Y++,surf+=Pitch*2,dat+=vga_width) {
- for(X=0; X<vga_width; X++) {
- int b0 = dat[X];
- surf[X*2] = b0;
- surf[X*2+1] = b0;
- surf[X*2+Pitch] = b0;
- surf[X*2+Pitch+1] = b0;
+ }
+
+ /*
+ * 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;
+ /* Go thru 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;
}
}
-
- if(vga_depth <= 4)
- for (Y=0; Y<vga_height; Y++,surf+=Pitch,dat+=vga_width/8) {
- for(X=0; X<vga_width; X+=8) {
- int offset = X/8;
- int Z;
- for(Z=0; Z<8; Z++) {
- int b0 = (dat[offset] >> Z) & 0x1;
- int index = 7-Z;
- surf[X+index] = b0;
- }
+ }
+
+ /*
+ * 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 )
{
- char *dat;
- unsigned int Height,Width,Y,X;
-
- if (!InterlockedExchangeAdd(&vga_polling, 1)) {
- /* FIXME: optimize by doing this only if the data has actually changed
- * (in a way similar to DIBSection, perhaps) */
- if (lpddraw) {
- VGA_Poll_Graphics();
- } else {
- /* text mode */
- CHAR_INFO ch[80];
- COORD siz, off;
- SMALL_RECT dest;
- HANDLE con = VGA_AlphaConsole();
-
- VGA_GetAlphaMode(&Width,&Height);
- dat = VGA_AlphaBuffer();
- siz.X = 80; siz.Y = 1;
- off.X = 0; off.Y = 0;
- /* copy from virtual VGA frame buffer to console */
- for (Y=0; Y<Height; Y++) {
- dest.Top=Y; dest.Bottom=Y;
- for (X=0; X<Width; X++) {
- ch[X].Char.AsciiChar = *dat++;
- /* WriteConsoleOutputA doesn't like "dead" chars */
- if (ch[X].Char.AsciiChar == '\0')
- ch[X].Char.AsciiChar = ' ';
- ch[X].Attributes = *dat++;
- }
- dest.Left=0; dest.Right=Width+1;
- WriteConsoleOutputA(con, ch, siz, off, &dest);
- }
- }
- vga_refresh=1;
- }
- InterlockedDecrement(&vga_polling);
+ 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;
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:
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) && 1);
+
+ /* 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) && 1);
+
+ /* Set palette index */
+ VGA_SetPaletteIndex((val & 0x20) && 1);
+
+ /* Now update the palette */
+ VGA_UpdatePalette();
+ break;
+ default:
+ FIXME("Unsupported VGA register: 0x%04x (value 0x%02x)\n", port, val);
}
}
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:
- /* since we don't (yet?) serve DOS VM requests while VGA_Poll is running,
- we need to fake the occurrence of the vertical refresh */
- ret=vga_refresh?0x00:0x08;
- vga_refresh=0;
+ /*
+ * 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;
}
projects / wine / blobdiff