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Bochs/bochs/gui/win32.cc
Todd T.Fries 2bbb1ef8eb strip '\n' from BX_{INFO,DEBUG,ERROR,PANIC} 
don't need it, moved the output of it into the general io functions.
saves space, as well as removes the confusing output if a '\n' is left off
2001-05-30 18:56:02 +00:00

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// Copyright (C) 2001 MandrakeSoft S.A.
//
// MandrakeSoft S.A.
// 43, rue d'Aboukir
// 75002 Paris - France
// http://www.linux-mandrake.com/
// http://www.mandrakesoft.com/
//
// 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// Much of this file was written by:
// David Ross
// dross@pobox.com
#include "bochs.h"
#include "icon_bochs.h"
#include "font/vga.bitmap.h"
#include <windows.h>
#include <process.h>
#define LOG_THIS bx_gui.
#ifdef __MINGW32__
#if BX_SHOW_IPS
#include <windows32/CommonFunctions.h>
#endif
#endif
#define EXIT_GUI_SHUTDOWN 1
#define EXIT_GMH_FAILURE 2
#define EXIT_FONT_BITMAP_ERROR 3
#define EXIT_NORMAL 4
#define EXIT_HEADER_BITMAP_ERROR 5
// Keyboard/mouse stuff
#define SCANCODE_BUFSIZE 20
#define MOUSE_PRESSED 0x20000000
#define HEADERBAR_CLICKED 0x08000000
#define MOUSE_MOTION 0x22000000
void enq_key_event(Bit32u, Bit32u);
void enq_mouse_event(void);
struct QueueEvent {
Bit32u key_event;
int mouse_x;
int mouse_y;
int mouse_button_state;
};
QueueEvent* deq_key_event(void);
static QueueEvent keyevents[SCANCODE_BUFSIZE];
static unsigned head=0, tail=0;
static unsigned mouse_button_state = 0;
static int ms_xdelta=0, ms_ydelta=0;
static int ms_lastx=0, ms_lasty=0;
static int ms_savedx=0, ms_savedy=0;
static BOOL mouseCaptureMode = TRUE;
static unsigned long workerThread = NULL;
static DWORD workerThreadID = 0;
// Graphics screen stuff
static unsigned x_tilesize = 0, y_tilesize = 0;
static BITMAPINFO* bitmap_info=(BITMAPINFO*)0;
static RGBQUAD* cmap_index; // indeces into system colormap
static HBITMAP MemoryBitmap = NULL;
static HDC MemoryDC = NULL;
static RECT updated_area;
static BOOL updated_area_valid = FALSE;
static Bit32u *VideoBits;
// Headerbar stuff
unsigned bx_bitmap_entries = 0;
struct {
HBITMAP bmap;
unsigned xdim;
unsigned ydim;
} bx_bitmaps[BX_MAX_PIXMAPS];
static struct {
HBITMAP bitmap;
unsigned xdim;
unsigned ydim;
unsigned xorigin;
unsigned yorigin;
unsigned alignment;
void (*f)(void);
} bx_headerbar_entry[BX_MAX_HEADERBAR_ENTRIES];
static unsigned bx_headerbar_y = 0;
static unsigned bx_headerbar_entries = 0;
static unsigned bx_bitmap_left_xorigin = 0; // pixels from left
static unsigned bx_bitmap_right_xorigin = 0; // pixels from right
static BOOL headerbar_changed = FALSE;
// Misc stuff
static unsigned dimension_x, dimension_y;
static unsigned stretched_x, stretched_y;
static unsigned stretch_factor=1;
static unsigned prev_block_cursor_x = 0;
static unsigned prev_block_cursor_y = 0;
static HBITMAP vgafont[256];
static unsigned x_edge=0, y_edge=0, y_caption=0;
static char szAppName[] = "Bochs for Windows";
static char szWindowName[] = "Bochs for Windows - Display";
typedef struct {
HINSTANCE hInstance;
CRITICAL_SECTION drawCS;
CRITICAL_SECTION keyCS;
CRITICAL_SECTION mouseCS;
int kill; // reason for terminateEmul(int)
BOOL UIinited;
HWND hwnd;
} sharedThreadInfo;
sharedThreadInfo stInfo;
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
VOID UIThread(PVOID);
void terminateEmul(int);
void create_vga_font(void);
static unsigned char reverse_bitorder(unsigned char);
void DrawBitmap (HDC, HBITMAP, int, int, DWORD, unsigned char cColor);
void updateUpdated(int,int,int,int);
static void headerbar_click(int x);
/* Macro to convert WM_ button state to BX button state */
#ifdef __MINGW32__
VOID CALLBACK MyTimer(HWND,UINT,UINT,DWORD);
void alarm(int);
void bx_signal_handler(int);
#endif
static void processMouseXY( int x, int y, int windows_state, int implied_state_change)
{
int bx_state;
int old_bx_state;
EnterCriticalSection( &stInfo.mouseCS);
bx_state=( ( windows_state & MK_LBUTTON) ? 1 : 0 ) + ( ( windows_state & MK_RBUTTON) ? 2 : 0);
old_bx_state=bx_state ^ implied_state_change;
if ( old_bx_state!=mouse_button_state)
{
/* Make up for missing message */
BX_INFO(( "&&&missing mouse state change"));
EnterCriticalSection( &stInfo.keyCS);
enq_mouse_event();
mouse_button_state=old_bx_state;
enq_key_event( mouse_button_state, MOUSE_PRESSED);
LeaveCriticalSection( &stInfo.keyCS);
}
ms_ydelta=ms_savedy-y;
ms_xdelta=x-ms_savedx;
ms_lastx=x;
ms_lasty=y;
if ( bx_state!=mouse_button_state)
{
EnterCriticalSection( &stInfo.keyCS);
enq_mouse_event();
mouse_button_state=bx_state;
enq_key_event( mouse_button_state, MOUSE_PRESSED);
LeaveCriticalSection( &stInfo.keyCS);
}
LeaveCriticalSection( &stInfo.mouseCS);
}
static void resetDelta()
{
EnterCriticalSection( &stInfo.mouseCS);
ms_savedx=ms_lastx;
ms_savedy=ms_lasty;
ms_ydelta=ms_xdelta=0;
LeaveCriticalSection( &stInfo.mouseCS);
}
static void cursorWarped()
{
EnterCriticalSection( &stInfo.mouseCS);
EnterCriticalSection( &stInfo.keyCS);
enq_mouse_event();
LeaveCriticalSection( &stInfo.keyCS);
ms_lastx=stretched_x/2;
ms_lasty=stretched_y/2;
ms_savedx=ms_lastx;
ms_savedy=ms_lasty;
LeaveCriticalSection( &stInfo.mouseCS);
}
// GUI thread must be dead/done in order to call terminateEmul
void terminateEmul(int reason) {
// We know that Critical Sections were inited when x_tilesize has been set
// See bx_gui_c::specific_init
if (x_tilesize != 0) {
DeleteCriticalSection (&stInfo.drawCS);
DeleteCriticalSection (&stInfo.keyCS);
DeleteCriticalSection (&stInfo.mouseCS);
}
if (MemoryDC) DeleteDC (MemoryDC);
if (MemoryBitmap) DeleteObject (MemoryBitmap);
if ( bitmap_info) delete[] (char*)bitmap_info;
for (unsigned c=0; c<256; c++)
if (vgafont[c]) DeleteObject(vgafont[c]);
switch (reason) {
case EXIT_GUI_SHUTDOWN:
BX_PANIC(("Window closed, exiting!"));
break;
case EXIT_GMH_FAILURE:
BX_PANIC(("GetModuleHandle failure!"));
break;
case EXIT_FONT_BITMAP_ERROR:
BX_PANIC(("Font bitmap creation failure!"));
break;
case EXIT_HEADER_BITMAP_ERROR:
BX_PANIC(("Header bitmap creation failure!"));
break;
case EXIT_NORMAL:
break;
}
}
// ::SPECIFIC_INIT()
//
// Called from gui.cc, once upon program startup, to allow for the
// specific GUI code (X11, BeOS, ...) to be initialized.
//
// th: a 'this' pointer to the gui class. If a function external to the
// class needs access, store this pointer and use later.
// argc, argv: not used right now, but the intention is to pass native GUI
// specific options from the command line. (X11 options, BeOS options,...)
//
// tilewidth, tileheight: for optimization, graphics_tile_update() passes
// only updated regions of the screen to the gui code to be redrawn.
// These define the dimensions of a region (tile).
// headerbar_y: A headerbar (toolbar) is display on the top of the
// VGA window, showing floppy status, and other information. It
// always assumes the width of the current VGA mode width, but
// it's height is defined by this parameter.
void bx_gui_c::specific_init(bx_gui_c *th, int argc, char **argv, unsigned
tilewidth, unsigned tileheight,
unsigned headerbar_y) {
th->setprefix("[WGUI]");
static RGBQUAD black_quad={ 0, 0, 0, 0};
stInfo.kill = 0;
stInfo.UIinited = FALSE;
InitializeCriticalSection(&stInfo.drawCS);
InitializeCriticalSection(&stInfo.keyCS);
InitializeCriticalSection(&stInfo.mouseCS);
x_tilesize = tilewidth;
y_tilesize = tileheight;
stInfo.hInstance = GetModuleHandle(NULL);
bx_headerbar_y = headerbar_y;
dimension_x = 640;
dimension_y = 480 + bx_headerbar_y;
stretched_x = dimension_x;
stretched_y = dimension_y;
stretch_factor = 1;
for(unsigned c=0; c<256; c++) vgafont[c] = NULL;
create_vga_font();
bitmap_info=(BITMAPINFO*)new char[sizeof(BITMAPINFOHEADER)+
256*sizeof(RGBQUAD)];
bitmap_info->bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
bitmap_info->bmiHeader.biWidth=x_tilesize;
// Height is negative for top-down bitmap
bitmap_info->bmiHeader.biHeight= -y_tilesize;
bitmap_info->bmiHeader.biPlanes=1;
bitmap_info->bmiHeader.biBitCount=8;
bitmap_info->bmiHeader.biCompression=BI_RGB;
bitmap_info->bmiHeader.biSizeImage=x_tilesize*y_tilesize;
// I think these next two figures don't matter; saying 45 pixels/centimeter
bitmap_info->bmiHeader.biXPelsPerMeter=4500;
bitmap_info->bmiHeader.biYPelsPerMeter=4500;
bitmap_info->bmiHeader.biClrUsed=256;
bitmap_info->bmiHeader.biClrImportant=0;
cmap_index=bitmap_info->bmiColors;
// start out with all color map indeces pointing to Black
cmap_index[0] = black_quad;
for (unsigned i=1; i<256; i++) {
cmap_index[i] = cmap_index[0];
}
x_edge = GetSystemMetrics(SM_CXFIXEDFRAME);
y_edge = GetSystemMetrics(SM_CYFIXEDFRAME);
y_caption = GetSystemMetrics(SM_CYCAPTION);
if (stInfo.hInstance)
workerThread = _beginthread (UIThread, 0, NULL);
else
terminateEmul(EXIT_GMH_FAILURE);
// Wait for a window before continuing
if ((stInfo.kill == 0) && (FindWindow(szAppName, NULL) == NULL))
Sleep(500);
// Now set this thread's priority to below normal because this is where
// the emulated CPU runs, and it hogs the real CPU
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_BELOW_NORMAL);
if (bx_options.private_colormap)
BX_INFO(( "private_colormap option ignored."));
}
// This thread controls the GUI window.
VOID UIThread(PVOID pvoid) {
MSG msg;
HDC hdc;
WNDCLASSEX wndclass;
RECT wndRect;
workerThreadID = GetCurrentThreadId();
wndclass.cbSize = sizeof (wndclass);
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = stInfo.hInstance;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szAppName;
wndclass.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
RegisterClassEx (&wndclass);
stInfo.hwnd = CreateWindow (szAppName,
szWindowName,
WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
CW_USEDEFAULT,
CW_USEDEFAULT,
stretched_x + x_edge * 2,
stretched_y + y_edge * 2 + y_caption,
NULL,
NULL,
stInfo.hInstance,
NULL);
if (stInfo.hwnd) {
ShowWindow (stInfo.hwnd, SW_SHOW);
UpdateWindow (stInfo.hwnd);
ShowCursor(FALSE);
GetWindowRect(stInfo.hwnd, &wndRect);
SetCursorPos(wndRect.left + stretched_x/2 + x_edge,
wndRect.top + stretched_y/2 + y_edge + y_caption);
cursorWarped();
hdc = GetDC(stInfo.hwnd);
MemoryBitmap = CreateCompatibleBitmap(hdc, dimension_x, dimension_y);
MemoryDC = CreateCompatibleDC(hdc);
ReleaseDC(stInfo.hwnd, hdc);
if (MemoryBitmap && MemoryDC) {
stInfo.UIinited = TRUE;
while (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
}
stInfo.kill = EXIT_GUI_SHUTDOWN;
_endthread();
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) {
HDC hdc, hdcMem;
PAINTSTRUCT ps;
RECT wndRect;
POINT ptCursorPos;
switch (iMsg) {
case WM_CREATE:
SetWindowText(hwnd, "Bochs for Windows - Display [Press F12 to release mouse capture]");
SetTimer (hwnd, 1, 330, NULL);
return 0;
case WM_TIMER:
// If mouse escaped, bring it back
if ( mouseCaptureMode)
{
GetCursorPos( &ptCursorPos);
GetWindowRect(hwnd, &wndRect);
if ( ptCursorPos.x<wndRect.left || ptCursorPos.x>wndRect.right
|| ptCursorPos.y<( wndRect.top+BX_HEADER_BAR_Y*stretch_factor) || ptCursorPos.y>wndRect.bottom)
{
SetCursorPos(wndRect.left + stretched_x/2 + x_edge,
wndRect.top + stretched_y/2 + y_edge + y_caption);
cursorWarped();
}
}
return 0;
case WM_PAINT:
EnterCriticalSection(&stInfo.drawCS);
hdc = BeginPaint (hwnd, &ps);
hdcMem = CreateCompatibleDC (hdc);
SelectObject (hdcMem, MemoryBitmap);
StretchBlt(hdc, ps.rcPaint.left, ps.rcPaint.top,
ps.rcPaint.right - ps.rcPaint.left + 1,
ps.rcPaint.bottom - ps.rcPaint.top + 1, hdcMem,
ps.rcPaint.left/stretch_factor, ps.rcPaint.top/stretch_factor,
(ps.rcPaint.right - ps.rcPaint.left+1)/stretch_factor, (ps.rcPaint.bottom - ps.rcPaint.top+1)/stretch_factor,SRCCOPY);
DeleteDC (hdcMem);
EndPaint (hwnd, &ps);
LeaveCriticalSection(&stInfo.drawCS);
return 0;
case WM_MOUSEMOVE:
processMouseXY( LOWORD(lParam), HIWORD(lParam), wParam, 0);
return 0;
case WM_LBUTTONDOWN:
case WM_LBUTTONDBLCLK:
if (HIWORD(lParam) < BX_HEADER_BAR_Y * stretch_factor) {
EnterCriticalSection(&stInfo.keyCS);
enq_key_event(LOWORD(lParam)/stretch_factor, HEADERBAR_CLICKED);
LeaveCriticalSection(&stInfo.keyCS);
}
processMouseXY( LOWORD(lParam), HIWORD(lParam), wParam, 1);
return 0;
case WM_LBUTTONUP:
processMouseXY( LOWORD(lParam), HIWORD(lParam), wParam, 1);
return 0;
case WM_RBUTTONDOWN:
case WM_RBUTTONDBLCLK:
case WM_RBUTTONUP:
processMouseXY( LOWORD(lParam), HIWORD(lParam), wParam, 2);
case WM_CLOSE:
return DefWindowProc (hwnd, iMsg, wParam, lParam);
case WM_DESTROY:
KillTimer (hwnd, 1);
stInfo.UIinited = FALSE;
PostQuitMessage (0);
return 0;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
if (wParam == VK_F12) {
mouseCaptureMode = !mouseCaptureMode;
ShowCursor(!mouseCaptureMode);
GetWindowRect(hwnd, &wndRect);
SetCursorPos(wndRect.left + stretched_x/2 + x_edge,
wndRect.top + stretched_y/2 + y_edge + y_caption);
cursorWarped();
if (mouseCaptureMode)
SetWindowText(hwnd, "Bochs for Windows - Display [Press F12 to release mouse capture]");
else
SetWindowText(hwnd, "Bochs for Windows - Display");
} else {
EnterCriticalSection(&stInfo.keyCS);
enq_key_event(HIWORD (lParam) & 0xFF, BX_KEY_PRESSED);
LeaveCriticalSection(&stInfo.keyCS);
}
return 0;
case WM_KEYUP:
case WM_SYSKEYUP:
EnterCriticalSection(&stInfo.keyCS);
enq_key_event(HIWORD (lParam) & 0xFF, BX_KEY_RELEASED);
LeaveCriticalSection(&stInfo.keyCS);
return 0;
case WM_CHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
return 0;
}
return DefWindowProc (hwnd, iMsg, wParam, lParam);
}
void enq_key_event(Bit32u key, Bit32u press_release) {
if (((tail+1) % SCANCODE_BUFSIZE) == head) {
BX_ERROR(( "enq_scancode: buffer full"));
return;
}
keyevents[tail].key_event = key | press_release;
tail = (tail + 1) % SCANCODE_BUFSIZE;
}
void enq_mouse_event(void)
{
EnterCriticalSection( &stInfo.mouseCS);
if ( ms_xdelta || ms_ydelta)
{
if (((tail+1) % SCANCODE_BUFSIZE) == head) {
BX_ERROR(( "enq_scancode: buffer full" ));
return;
}
QueueEvent& current=keyevents[tail];
current.key_event=MOUSE_MOTION;
current.mouse_x=ms_xdelta;
current.mouse_y=ms_ydelta;
current.mouse_button_state=mouse_button_state;
resetDelta();
tail = (tail + 1) % SCANCODE_BUFSIZE;
}
LeaveCriticalSection( &stInfo.mouseCS);
}
QueueEvent* deq_key_event(void) {
QueueEvent* key;
if ( head == tail ) {
BX_ERROR(("deq_scancode: buffer empty"));
return((QueueEvent*)0);
}
key = &keyevents[head];
head = (head + 1) % SCANCODE_BUFSIZE;
return(key);
}
// ::HANDLE_EVENTS()
//
// Called periodically (vga_update_interval in .bochsrc) so the
// the gui code can poll for keyboard, mouse, and other
// relevant events.
void bx_gui_c::handle_events(void) {
Bit32u key;
unsigned char scancode;
// printf("# Hey!!!\n");
if (stInfo.kill) terminateEmul(stInfo.kill);
// Handle mouse moves
enq_mouse_event();
// Handle keyboard and mouse clicks
EnterCriticalSection(&stInfo.keyCS);
while (head != tail) {
QueueEvent* queue_event=deq_key_event();
if ( ! queue_event)
break;
// Bypass bx_devices.keyboard->gen_scancode so we may enter
// a scancode directly
// bx_devices.keyboard->gen_scancode(deq_key_event());
key = queue_event->key_event;
if ( key==MOUSE_MOTION)
{
bx_devices.keyboard->mouse_motion( queue_event->mouse_x,
queue_event->mouse_y, queue_event->mouse_button_state);
}
// Check for mouse buttons first
else if ( key & MOUSE_PRESSED) {
// printf("# click!\n");
bx_devices.keyboard->mouse_motion( 0, 0, LOWORD(key));
}
else if (key & HEADERBAR_CLICKED) {
headerbar_click(LOWORD(key));
}
else {
// Its a key
scancode = LOBYTE(LOWORD(key));
// printf("# key = %d, scancode = %d\n",key,scancode);
if (key & BX_KEY_RELEASED) scancode |= 0x80;
bx_devices.keyboard->put_scancode(&scancode, 1);
}
}
LeaveCriticalSection(&stInfo.keyCS);
}
// ::FLUSH()
//
// Called periodically, requesting that the gui code flush all pending
// screen update requests.
void bx_gui_c::flush(void) {
EnterCriticalSection( &stInfo.drawCS);
if (updated_area_valid) {
// slight bugfix
updated_area.right++;
updated_area.bottom++;
InvalidateRect( stInfo.hwnd, &updated_area, FALSE);
updated_area_valid = FALSE;
}
LeaveCriticalSection( &stInfo.drawCS);
}
// ::CLEAR_SCREEN()
//
// Called to request that the VGA region is cleared. Don't
// clear the area that defines the headerbar.
void bx_gui_c::clear_screen(void) {
HGDIOBJ oldObj;
if (!stInfo.UIinited) return;
EnterCriticalSection(&stInfo.drawCS);
oldObj = SelectObject(MemoryDC, MemoryBitmap);
PatBlt(MemoryDC, 0, bx_headerbar_y, stretched_x, stretched_y -
bx_headerbar_y, BLACKNESS);
SelectObject(MemoryDC, oldObj);
updateUpdated(0, bx_headerbar_y, dimension_x-1, dimension_y-1);
LeaveCriticalSection(&stInfo.drawCS);
}
// ::TEXT_UPDATE()
//
// Called in a VGA text mode, to update the screen with
// new content.
//
// old_text: array of character/attributes making up the contents
// of the screen from the last call. See below
// new_text: array of character/attributes making up the current
// contents, which should now be displayed. See below
//
// format of old_text & new_text: each is 80*nrows*2 bytes long.
// This represents 80 characters wide by 'nrows' high, with
// each character being 2 bytes. The first by is the
// character value, the second is the attribute byte.
// I currently don't handle the attribute byte.
//
// cursor_x: new x location of cursor
// cursor_y: new y location of cursor
void bx_gui_c::text_update(Bit8u *old_text, Bit8u *new_text,
unsigned long cursor_x, unsigned long cursor_y,
unsigned nrows) {
HDC hdc;
unsigned char cChar;
unsigned i, x, y;
unsigned nchars;
if (!stInfo.UIinited) return;
EnterCriticalSection(&stInfo.drawCS);
hdc = GetDC(stInfo.hwnd);
// Number of characters on screen, variable number of rows
nchars = 80*nrows;
if ( (prev_block_cursor_y*80 + prev_block_cursor_x) < nchars) {
cChar = new_text[(prev_block_cursor_y*80 + prev_block_cursor_x)*2];
DrawBitmap(hdc, vgafont[cChar], prev_block_cursor_x*8,
prev_block_cursor_y*16 + bx_headerbar_y, SRCCOPY,
new_text[((prev_block_cursor_y*80 + prev_block_cursor_x)*2)+1]);
}
for (i=0; i<nchars*2; i+=2) {
if ((old_text[i] != new_text[i]) ||
(old_text[i+1] != new_text[i+1])) {
cChar = new_text[i];
x = (i/2) % 80;
y = (i/2) / 80;
DrawBitmap(hdc, vgafont[cChar], x*8, y*16 + bx_headerbar_y, SRCCOPY, new_text[i+1]);
}
}
prev_block_cursor_x = cursor_x;
prev_block_cursor_y = cursor_y;
// now draw character at new block cursor location in reverse
if ((cursor_y*80 + cursor_x) < nchars ) {
cChar = new_text[(cursor_y*80 + cursor_x)*2];
//reverse background and foreground colors
char cAttr = new_text[((cursor_y*80 + cursor_x)*2)+1];
cAttr = ((cAttr>>4)&0xf)+((cAttr&0xf)<<4);
DrawBitmap(hdc, vgafont[cChar], cursor_x*8, cursor_y*16 + bx_headerbar_y,
SRCCOPY, cAttr);
}
ReleaseDC(stInfo.hwnd, hdc);
LeaveCriticalSection(&stInfo.drawCS);
}
// ::PALETTE_CHANGE()
//
// Allocate a color in the native GUI, for this color, and put
// it in the colormap location 'index'.
// returns: 0=no screen update needed (color map change has direct effect)
// 1=screen updated needed (redraw using current colormap)
Boolean bx_gui_c::palette_change(unsigned index, unsigned red,
unsigned green, unsigned blue) {
cmap_index[index].rgbRed = red;
cmap_index[index].rgbBlue = blue;
cmap_index[index].rgbGreen = green;
return(1);
}
// ::GRAPHICS_TILE_UPDATE()
//
// Called to request that a tile of graphics be drawn to the
// screen, since info in this region has changed.
//
// tile: array of 8bit values representing a block of pixels with
// dimension equal to the 'tilewidth' & 'tileheight' parameters to
// ::specific_init(). Each value specifies an index into the
// array of colors you allocated for ::palette_change()
// x0: x origin of tile
// y0: y origin of tile
//
// note: origin of tile and of window based on (0,0) being in the upper
// left of the window.
void bx_gui_c::graphics_tile_update(Bit8u *tile, unsigned x0, unsigned y0) {
HDC hdc;
HGDIOBJ oldObj;
unsigned true_y0;
true_y0 = y0 + bx_headerbar_y;
EnterCriticalSection(&stInfo.drawCS);
hdc = GetDC(stInfo.hwnd);
oldObj = SelectObject(MemoryDC, MemoryBitmap);
StretchDIBits( MemoryDC, x0, true_y0, x_tilesize, y_tilesize, 0, 0,
x_tilesize, y_tilesize, tile, bitmap_info, DIB_RGB_COLORS, SRCCOPY);
SelectObject(MemoryDC, oldObj);
updateUpdated(x0, true_y0, x0 + x_tilesize - 1, true_y0 + y_tilesize - 1);
ReleaseDC(stInfo.hwnd, hdc);
LeaveCriticalSection(&stInfo.drawCS);
}
// ::DIMENSION_UPDATE()
//
// Called when the VGA mode changes it's X,Y dimensions.
// Resize the window to this size, but you need to add on
// the height of the headerbar to the Y value.
//
// x: new VGA x size
// y: new VGA y size (add headerbar_y parameter from ::specific_init().
void bx_gui_c::dimension_update(unsigned x, unsigned y) {
if ( x==dimension_x && y+bx_headerbar_y==dimension_y)
return;
dimension_x = x;
dimension_y = y + bx_headerbar_y;
stretched_x = dimension_x;
stretched_y = dimension_y;
stretch_factor = 1;
while ( stretched_x<400)
{
stretched_x *= 2;
stretched_y *= 2;
stretch_factor *= 2;
}
SetWindowPos(stInfo.hwnd, HWND_TOP, 0, 0, stretched_x + x_edge * 2,
stretched_y+ y_edge * 2 + y_caption,
SWP_NOMOVE | SWP_NOZORDER);
headerbar_changed = TRUE;
show_headerbar();
}
// ::CREATE_BITMAP()
//
// Create a monochrome bitmap of size 'xdim' by 'ydim', which will
// be drawn in the headerbar. Return an integer ID to the bitmap,
// with which the bitmap can be referenced later.
//
// bmap: packed 8 pixels-per-byte bitmap. The pixel order is:
// bit0 is the left most pixel, bit7 is the right most pixel.
// xdim: x dimension of bitmap
// ydim: y dimension of bitmap
unsigned bx_gui_c::create_bitmap(const unsigned char *bmap, unsigned xdim,
unsigned ydim) {
unsigned char *data;
if (bx_bitmap_entries >= BX_MAX_PIXMAPS)
terminateEmul(EXIT_HEADER_BITMAP_ERROR);
bx_bitmaps[bx_bitmap_entries].bmap = CreateBitmap(xdim,ydim,1,1,NULL);
if (!bx_bitmaps[bx_bitmap_entries].bmap)
terminateEmul(EXIT_HEADER_BITMAP_ERROR);
data = new unsigned char[ydim * xdim/8];
for (unsigned i=0; i<ydim * xdim/8; i++)
data[i] = reverse_bitorder(bmap[i]);
SetBitmapBits(bx_bitmaps[bx_bitmap_entries].bmap, ydim * xdim/8, data);
free(data);
bx_bitmaps[bx_bitmap_entries].xdim = xdim;
bx_bitmaps[bx_bitmap_entries].ydim = ydim;
bx_bitmap_entries++;
return(bx_bitmap_entries-1); // return index as handle
}
// ::HEADERBAR_BITMAP()
//
// Called to install a bitmap in the bochs headerbar (toolbar).
//
// bmap_id: will correspond to an ID returned from
// ::create_bitmap(). 'alignment' is either BX_GRAVITY_LEFT
// or BX_GRAVITY_RIGHT, meaning install the bitmap in the next
// available leftmost or rightmost space.
// alignment: is either BX_GRAVITY_LEFT or BX_GRAVITY_RIGHT,
// meaning install the bitmap in the next
// available leftmost or rightmost space.
// f: a 'C' function pointer to callback when the mouse is clicked in
// the boundaries of this bitmap.
unsigned bx_gui_c::headerbar_bitmap(unsigned bmap_id, unsigned alignment,
void (*f)(void)) {
unsigned hb_index;
if ( (bx_headerbar_entries+1) > BX_MAX_HEADERBAR_ENTRIES )
terminateEmul(EXIT_HEADER_BITMAP_ERROR);
bx_headerbar_entries++;
hb_index = bx_headerbar_entries - 1;
bx_headerbar_entry[hb_index].bitmap = bx_bitmaps[bmap_id].bmap;
bx_headerbar_entry[hb_index].xdim = bx_bitmaps[bmap_id].xdim;
bx_headerbar_entry[hb_index].ydim = bx_bitmaps[bmap_id].ydim;
bx_headerbar_entry[hb_index].alignment = alignment;
bx_headerbar_entry[hb_index].f = f;
if (alignment == BX_GRAVITY_LEFT) {
bx_headerbar_entry[hb_index].xorigin = bx_bitmap_left_xorigin;
bx_headerbar_entry[hb_index].yorigin = 0;
bx_bitmap_left_xorigin += bx_bitmaps[bmap_id].xdim;
} else { // BX_GRAVITY_RIGHT
bx_bitmap_right_xorigin += bx_bitmaps[bmap_id].xdim;
bx_headerbar_entry[hb_index].xorigin = bx_bitmap_right_xorigin;
bx_headerbar_entry[hb_index].yorigin = 0;
}
headerbar_changed = TRUE;
return(hb_index);
}
// ::SHOW_HEADERBAR()
//
// Show (redraw) the current headerbar, which is composed of
// currently installed bitmaps.
void bx_gui_c::show_headerbar(void) {
unsigned xorigin;
HGDIOBJ oldObj;
if (!headerbar_changed || !stInfo.UIinited) return;
EnterCriticalSection(&stInfo.drawCS);
oldObj = SelectObject(MemoryDC, MemoryBitmap);
PatBlt (MemoryDC, 0, 0, dimension_x, bx_headerbar_y, BLACKNESS);
for (unsigned i=0; i<bx_headerbar_entries; i++) {
if (bx_headerbar_entry[i].alignment == BX_GRAVITY_LEFT)
xorigin = bx_headerbar_entry[i].xorigin;
else
xorigin = dimension_x - bx_headerbar_entry[i].xorigin;
DrawBitmap(MemoryDC, bx_headerbar_entry[i].bitmap, xorigin, 0, SRCCOPY, 0x7);
}
SelectObject(MemoryDC, oldObj);
updateUpdated(0, 0, dimension_x-1, bx_headerbar_y-1);
LeaveCriticalSection(&stInfo.drawCS);
headerbar_changed = FALSE;
}
// ::REPLACE_BITMAP()
//
// Replace the bitmap installed in the headerbar ID slot 'hbar_id',
// with the one specified by 'bmap_id'. 'bmap_id' will have
// been generated by ::create_bitmap(). The old and new bitmap
// must be of the same size. This allows the bitmap the user
// sees to change, when some action occurs. For example when
// the user presses on the floppy icon, it then displays
// the ejected status.
//
// hbar_id: headerbar slot ID
// bmap_id: bitmap ID
void bx_gui_c::replace_bitmap(unsigned hbar_id, unsigned bmap_id) {
headerbar_changed = TRUE;
bx_headerbar_entry[hbar_id].bitmap = bx_bitmaps[bmap_id].bmap;
show_headerbar();
}
// ::EXIT()
//
// Called before bochs terminates, to allow for a graceful
// exit from the native GUI mechanism.
void bx_gui_c::exit(void) {
printf("# In bx_gui_c::exit(void)!\n");
// kill thread first...
PostMessage(stInfo.hwnd, WM_CLOSE, 0, 0);
// Wait until it dies
while ((stInfo.kill == 0) && (workerThreadID != 0)) Sleep(500);
if (!stInfo.kill) terminateEmul(EXIT_NORMAL);
}
void create_vga_font(void) {
HDC hdc;
unsigned char data[32];
// VGA font is 8wide x 16high
hdc = GetDC(stInfo.hwnd);
for (unsigned c = 0; c<256; c++) {
vgafont[c] = CreateBitmap(8,16,1,1,NULL);
if (!vgafont[c]) terminateEmul(EXIT_FONT_BITMAP_ERROR);
memset(data, 0, 16);
for (unsigned i=0; i<16; i++)
data[i*2] = reverse_bitorder(bx_vgafont[c].data[i]);
SetBitmapBits(vgafont[c], 32, data);
}
}
unsigned char reverse_bitorder(unsigned char b) {
unsigned char ret=0;
for (unsigned i=0; i<8; i++) {
ret |= (b & 0x01) << (7-i);
b >>= 1;
}
return(ret);
}
void DrawBitmap (HDC hdc, HBITMAP hBitmap, int xStart, int yStart,
DWORD dwRop, unsigned char cColor) {
BITMAP bm;
HDC hdcMem;
POINT ptSize, ptOrg;
HGDIOBJ oldObj;
hdcMem = CreateCompatibleDC (hdc);
SelectObject (hdcMem, hBitmap);
SetMapMode (hdcMem, GetMapMode (hdc));
GetObject (hBitmap, sizeof (BITMAP), (LPVOID) &bm);
ptSize.x = bm.bmWidth;
ptSize.y = bm.bmHeight;
DPtoLP (hdc, &ptSize, 1);
ptOrg.x = 0;
ptOrg.y = 0;
DPtoLP (hdcMem, &ptOrg, 1);
// BitBlt (hdc, xStart, yStart, ptSize.x, ptSize.y, hdcMem, ptOrg.x,
// ptOrg.y, dwRop);
oldObj = SelectObject(MemoryDC, MemoryBitmap);
// BitBlt(MemoryDC, xStart, yStart, ptSize.x, ptSize.y, hdcMem, ptOrg.x,
// ptOrg.y, dwRop);
//Colors taken from Ralf Browns interrupt list.
//(0=black, 1=blue, 2=red, 3=purple, 4=green, 5=cyan, 6=yellow, 7=white)
//The highest background bit usually means blinking characters. No idea
//how to implement that so for now it's just implemented as color.
//Note: it is also possible to program the VGA controller to have the
//high bit for the foreground color enable blinking characters.
const COLORREF crPal[16] = {
RGB(0 ,0 ,0 ), //0 black
RGB(0 ,0 ,0x80 ), //1 dark blue
RGB(0 ,0x80 ,0 ), //2 dark green
RGB(0 ,0x80 ,0x80 ), //3 dark cyan
RGB(0x80 ,0 ,0 ), //4 dark red
RGB(0x80 ,0 ,0x80 ), //5 dark magenta
RGB(0x80 ,0x80 ,0 ), //6 brown
RGB(0xC0 ,0xC0 ,0xC0 ), //7 light gray
RGB(0x80 ,0x80 ,0x80 ), //8 dark gray
RGB(0 ,0 ,0xFF ), //9 light blue
RGB(0 ,0xFF ,0 ), //10 green
RGB(0 ,0xFF ,0xFF ), //11 cyan
RGB(0xFF ,0 ,0 ), //12 light red
RGB(0xFF ,0 ,0xFF ), //13 magenta
RGB(0xFF ,0xFF ,0 ), //14 yellow
RGB(0xFF ,0xFF ,0xFF )}; //15 white
COLORREF crFore = SetTextColor(MemoryDC, crPal[(cColor>>4)&0xf]);
COLORREF crBack = SetBkColor(MemoryDC, crPal[cColor&0xf]);
BitBlt (MemoryDC, xStart, yStart, ptSize.x, ptSize.y, hdcMem, ptOrg.x,
ptOrg.y, dwRop);
SetBkColor(MemoryDC, crBack);
SetTextColor(MemoryDC, crFore);
SelectObject(MemoryDC, oldObj);
updateUpdated(xStart, yStart, ptSize.x + xStart - 1, ptSize.y + yStart - 1);
DeleteDC (hdcMem);
}
void updateUpdated(int x1, int y1, int x2, int y2) {
x1*=stretch_factor;
y1*=stretch_factor;
x2*=stretch_factor;
y2*=stretch_factor;
if (!updated_area_valid) {
updated_area.left = x1 ;
updated_area.top = y1 ;
updated_area.right = x2 ;
updated_area.bottom = y2 ;
} else {
if (x1 < updated_area.left) updated_area.left = x1 ;
if (y1 < updated_area.top) updated_area.top = y1 ;
if (x2 > updated_area.right) updated_area.right = x2 ;
if (y2 > updated_area.bottom) updated_area.bottom = y2;
}
updated_area_valid = TRUE;
}
void headerbar_click(int x) {
int xorigin;
for (unsigned i=0; i<bx_headerbar_entries; i++) {
if (bx_headerbar_entry[i].alignment == BX_GRAVITY_LEFT)
xorigin = bx_headerbar_entry[i].xorigin;
else
xorigin = dimension_x - bx_headerbar_entry[i].xorigin;
if ( (x>=xorigin) && (x<(xorigin+int(bx_headerbar_entry[i].xdim))) ) {
bx_headerbar_entry[i].f();
return;
}
}
}
#ifdef __MINGW32__
#if BX_SHOW_IPS
VOID CALLBACK MyTimer(HWND hwnd,UINT uMsg, UINT idEvent, DWORD dwTime)
{
bx_signal_handler(SIGALRM);
}
void alarm (int time)
{
UINT idTimer;
SetTimer(stInfo.hwnd,idTimer,time*1000,MyTimer);
}
#endif
#endif
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