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raze-gles/polymer/build/src/winlayer.c

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// Windows DIB/DirectDraw interface layer
// for the Build Engine
// by Jonathon Fowler (jonof@edgenetwk.com)
//
// This is all very ugly.
//
// Written for DirectX 6.0
#ifndef _WIN32
#error winlayer.c is for Windows only.
#endif
#define DIRECTINPUT_VERSION 0x0500
#define DIRECTDRAW_VERSION 0x0600
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <ddraw.h>
#include <dinput.h>
#ifndef DIK_PAUSE
# define DIK_PAUSE 0xC5
#endif
#include <math.h>
#include "dxdidf.h" // comment this out if c_dfDI* is being reported as multiply defined
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <stdarg.h>
#if defined(USE_OPENGL) && defined(POLYMOST)
#include "glbuild.h"
#endif
#include "compat.h"
#include "winlayer.h"
#include "pragmas.h"
#include "build.h"
#include "a.h"
#include "osd.h"
// undefine to restrict windowed resolutions to conventional sizes
#define ANY_WINDOWED_SIZE
int _buildargc = 0;
const char **_buildargv = NULL;
static char *argvbuf = NULL;
extern int app_main(int argc, const char *argv[]);
extern void app_crashhandler(void);
// Windows crud
static HINSTANCE hInstance = 0;
static HWND hWindow = 0;
#define WINDOW_STYLE (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX)
#define WindowClass "buildapp"
static BOOL window_class_registered = FALSE;
static HANDLE instanceflag = NULL;
int backgroundidle = 1;
int is_vista = 0;
static WORD sysgamma[3][256];
extern int curbrightness, gammabrightness;
#if defined(USE_OPENGL) && defined(POLYMOST)
// OpenGL stuff
static HGLRC hGLRC = 0;
char nofog=0;
static char nogl=0;
#endif
static LPTSTR GetWindowsErrorMsg(DWORD code);
static const char * GetDDrawError(HRESULT code);
static const char * GetDInputError(HRESULT code);
static void ShowErrorBox(const char *m);
static void ShowDDrawErrorBox(const char *m, HRESULT r);
static void ShowDInputErrorBox(const char *m, HRESULT r);
static BOOL CheckWinVersion(void);
static LRESULT CALLBACK WndProcCallback(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
static BOOL InitDirectDraw(void);
static void UninitDirectDraw(void);
static int RestoreDirectDrawMode(void);
static void ReleaseDirectDrawSurfaces(void);
static BOOL InitDirectInput(void);
static void UninitDirectInput(void);
static void GetKeyNames(void);
static void AcquireInputDevices(char acquire, signed char device);
static void ProcessInputDevices(void);
static int SetupDirectDraw(int width, int height);
static void UninitDIB(void);
static int SetupDIB(int width, int height);
static void ReleaseOpenGL(void);
static void UninitOpenGL(void);
static int SetupOpenGL(int width, int height, int bitspp);
static BOOL RegisterWindowClass(void);
static BOOL CreateAppWindow(int modenum);
static void DestroyAppWindow(void);
static void SaveSystemColours(void);
static void SetBWSystemColours(void);
static void RestoreSystemColours(void);
static void ProcessMouse(void);
// video
static int desktopxdim=0,desktopydim=0,desktopbpp=0,modesetusing=-1;
int xres=-1, yres=-1, fullscreen=0, bpp=0, bytesperline=0, imageSize=0;
intptr_t frameplace=0;
int lockcount=0;
static int curvidmode = -1;
static int customxdim = 640, customydim = 480, custombpp = 8, customfs = 0;
static unsigned modeschecked=0;
unsigned maxrefreshfreq=60;
char modechange=1, repaintneeded=0;
char offscreenrendering=0;
int glcolourdepth=32;
char videomodereset = 0;
// input and events
char inputdevices=0;
char quitevent=0, appactive=1, realfs=0;
volatile int mousex=0, mousey=0, mouseb=0;
static unsigned int mousewheel[2] = { 0,0 };
#define MouseWheelFakePressTime (50) // getticks() is a 1000Hz timer, and the button press is faked for 100ms
int *joyaxis = NULL, joyb=0, *joyhat = NULL;
char joyisgamepad=0, joynumaxes=0, joynumbuttons=0, joynumhats=0;
static char taskswitching=1;
char keystatus[256], keyfifo[KEYFIFOSIZ], keyfifoplc, keyfifoend;
unsigned char keyasciififo[KEYFIFOSIZ], keyasciififoplc, keyasciififoend;
unsigned char remap[256];
int remapinit=0;
static unsigned char keynames[256][24];
static unsigned int lastKeyDown = 0;
static unsigned int lastKeyTime = 0;
void (*keypresscallback)(int,int) = 0;
void (*mousepresscallback)(int,int) = 0;
void (*joypresscallback)(int,int) = 0;
//-------------------------------------------------------------------------------------------------
// MAIN CRAP
//=================================================================================================
//
// win_gethwnd() -- gets the window handle
//
int win_gethwnd(void)
{
return (int)hWindow;
}
//
// win_gethinstance() -- gets the application instance
//
int win_gethinstance(void)
{
return (int)hInstance;
}
//
// win_allowtaskswitching() -- captures/releases alt+tab hotkeys
//
void win_allowtaskswitching(int onf)
{
if (onf == taskswitching) return;
if (onf)
{
UnregisterHotKey(0,0);
UnregisterHotKey(0,1);
}
else
{
RegisterHotKey(0,0,MOD_ALT,VK_TAB);
RegisterHotKey(0,1,MOD_ALT|MOD_SHIFT,VK_TAB);
}
taskswitching = onf;
}
//
// win_checkinstance() -- looks for another instance of a Build app
//
int win_checkinstance(void)
{
if (!instanceflag) return 0;
return (WaitForSingleObject(instanceflag,0) == WAIT_TIMEOUT);
}
//
// wm_msgbox/wm_ynbox() -- window-manager-provided message boxes
//
int wm_msgbox(char *name, char *fmt, ...)
{
char buf[2048];
va_list va;
va_start(va,fmt);
vsprintf(buf,fmt,va);
va_end(va);
MessageBox(hWindow,buf,name,MB_OK|MB_TASKMODAL);
return 0;
}
int wm_ynbox(char *name, char *fmt, ...)
{
char buf[2048];
va_list va;
int r;
va_start(va,fmt);
vsprintf(buf,fmt,va);
va_end(va);
r = MessageBox((HWND)win_gethwnd(),buf,name,MB_YESNO|MB_TASKMODAL);
if (r==IDYES) return 1;
return 0;
}
//
// wm_setapptitle() -- changes the window title
//
void wm_setapptitle(char *name)
{
if (name)
{
Bstrncpy(apptitle, name, sizeof(apptitle)-1);
apptitle[ sizeof(apptitle)-1 ] = 0;
}
if (hWindow) SetWindowText(hWindow, apptitle);
startwin_settitle(apptitle);
}
//
// SignalHandler() -- called when we've sprung a leak
//
static void SignalHandler(int signum)
{
switch (signum)
{
case SIGSEGV:
printOSD("Fatal Signal caught: SIGSEGV. Bailing out.\n");
app_crashhandler();
uninitsystem();
if (stdout) fclose(stdout);
break;
default:
break;
}
}
//
// WinMain() -- main Windows entry point
//
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR lpCmdLine, int nCmdShow)
{
int r;
char *argp;
FILE *fp;
HDC hdc;
UNREFERENCED_PARAMETER(lpCmdLine);
UNREFERENCED_PARAMETER(nCmdShow);
hInstance = hInst;
if (CheckWinVersion() || hPrevInst)
{
MessageBox(0, "This application must be run under Windows 95/98/Me or Windows 2000/XP or better.",
apptitle, MB_OK|MB_ICONSTOP);
return -1;
}
hdc = GetDC(NULL);
r = GetDeviceCaps(hdc, BITSPIXEL);
ReleaseDC(NULL, hdc);
if (r < 8)
{
MessageBox(0, "This application requires a desktop colour depth of 256-colours or more.",
apptitle, MB_OK|MB_ICONSTOP);
return -1;
}
// carve up the commandline into more recognizable pieces
argvbuf = strdup(GetCommandLine());
_buildargc = 0;
if (argvbuf)
{
char quoted = 0, instring = 0, swallownext = 0;
char *p,*wp; int i;
for (p=wp=argvbuf; *p; p++)
{
if (*p == ' ')
{
if (instring && !quoted)
{
// end of a string
*(wp++) = 0;
instring = 0;
}
else if (instring)
{
*(wp++) = *p;
}
}
else if (*p == '"' && !swallownext)
{
if (instring && quoted)
{
// end of a string
if (p[1] == ' ')
{
*(wp++) = 0;
instring = 0;
quoted = 0;
}
else
{
quoted = 0;
}
}
else if (instring && !quoted)
{
quoted = 1;
}
else if (!instring)
{
instring = 1;
quoted = 1;
_buildargc++;
}
}
else if (*p == '\\' && p[1] == '"' && !swallownext)
{
swallownext = 1;
}
else
{
if (!instring) _buildargc++;
instring = 1;
*(wp++) = *p;
swallownext = 0;
}
}
*wp = 0;
_buildargv = (const char**)malloc(sizeof(char*)*_buildargc);
wp = argvbuf;
for (i=0; i<_buildargc; i++,wp++)
{
_buildargv[i] = wp;
while (*wp) wp++;
}
}
// pipe standard outputs to files
if ((argp = Bgetenv("BUILD_LOGSTDOUT")) != NULL)
if (!Bstrcasecmp(argp, "TRUE"))
{
fp = freopen("stdout.txt", "w", stdout);
if (!fp)
{
fp = fopen("stdout.txt", "w");
}
if (fp) setvbuf(fp, 0, _IONBF, 0);
*stdout = *fp;
*stderr = *fp;
}
#if defined(USE_OPENGL) && defined(POLYMOST)
if ((argp = Bgetenv("BUILD_NOFOG")) != NULL)
nofog = Batol(argp);
#endif
// install signal handlers
signal(SIGSEGV, SignalHandler);
if (RegisterWindowClass()) return -1;
#ifdef DISCLAIMER
MessageBox(0,
DISCLAIMER,
"Notice",
MB_OK|MB_ICONINFORMATION);
#endif
atexit(uninitsystem);
instanceflag = CreateSemaphore(NULL, 1,1, WindowClass);
startwin_open();
baselayer_init();
r = app_main(_buildargc, _buildargv);
fclose(stdout);
startwin_close();
if (instanceflag) CloseHandle(instanceflag);
if (argvbuf) free(argvbuf);
return r;
}
static int set_maxrefreshfreq(const osdfuncparm_t *parm)
{
int freq;
if (parm->numparms == 0)
{
if (maxrefreshfreq == 0)
OSD_Printf("\"maxrefreshfreq\" is \"No maximum\"\n");
else
OSD_Printf("\"maxrefreshfreq\" is \"%d\"\n",maxrefreshfreq);
return OSDCMD_OK;
}
if (parm->numparms != 1) return OSDCMD_SHOWHELP;
freq = Batol(parm->parms[0]);
if (freq < 0) return OSDCMD_SHOWHELP;
maxrefreshfreq = (unsigned)freq;
modeschecked = 0;
return OSDCMD_OK;
}
static int set_windowpos(const osdfuncparm_t *parm)
{
if (parm->numparms == 0)
{
OSD_Printf("\"r_windowpositioning\" is \"%d\"\n",windowpos);
return OSDCMD_OK;
}
if (parm->numparms != 1) return OSDCMD_SHOWHELP;
windowpos = Batol(parm->parms[0])>0;
OSD_Printf("r_windowpositioning %d\n",windowpos);
return OSDCMD_OK;
}
//
// initsystem() -- init systems
//
static void print_os_version(void)
{
OSVERSIONINFO osv;
const char *ver = NULL;
// I was going to call this 'windows_9x_is_awful', but I couldn't justify ever setting it to 0
int awful_windows_9x = 0;
osv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osv);
switch (osv.dwPlatformId)
{
case VER_PLATFORM_WIN32_NT:
if (osv.dwMajorVersion == 5)
{
switch (osv.dwMinorVersion)
{
case 0:
ver = "2000";
break;
case 1:
ver = "XP";
break;
case 2:
ver = "Server 2003";
break;
}
break;
}
if (osv.dwMajorVersion == 6 && osv.dwMinorVersion == 0)
{
ver = "Vista";
is_vista = 1;
}
break;
case VER_PLATFORM_WIN32_WINDOWS:
awful_windows_9x = 1;
if (osv.dwMinorVersion < 10)
ver = "95";
else if (osv.dwMinorVersion < 90)
ver = "98";
else ver = "Me";
break;
default:
ver = "Unknown";
initprintf("OS: Unknown OS\n");
return;
}
if (ver != NULL)
{
initprintf("OS: Windows %s (Version %lu.%lu.%lu)\n", ver, osv.dwMajorVersion, osv.dwMinorVersion,
awful_windows_9x?osv.dwBuildNumber&0xffff:osv.dwBuildNumber);
if (osv.szCSDVersion[0])
initprintf(" - %s\n", osv.szCSDVersion);
}
}
int initsystem(void)
{
DEVMODE desktopmode;
initprintf("Initializing Windows DirectX/GDI system interface\n");
// get the desktop dimensions before anything changes them
ZeroMemory(&desktopmode, sizeof(DEVMODE));
desktopmode.dmSize = sizeof(DEVMODE);
EnumDisplaySettings(NULL,ENUM_CURRENT_SETTINGS,&desktopmode);
desktopxdim = desktopmode.dmPelsWidth;
desktopydim = desktopmode.dmPelsHeight;
desktopbpp = desktopmode.dmBitsPerPel;
if (desktopbpp <= 8)
// save the system colours
SaveSystemColours();
memset(curpalette, 0, sizeof(palette_t) * 256);
atexit(uninitsystem);
frameplace=0;
lockcount=0;
print_os_version();
#if defined(USE_OPENGL) && defined(POLYMOST)
if (loadgldriver(getenv("BUILD_GLDRV")))
{
initprintf("Failed loading OpenGL driver. GL modes will be unavailable.\n");
nogl = 1;
}
#endif
// try and start DirectDraw
if (InitDirectDraw())
initprintf("DirectDraw initialization failed. Fullscreen modes will be unavailable.\n");
OSD_RegisterFunction("maxrefreshfreq", "maxrefreshfreq: maximum display frequency to set for OpenGL Polymost modes (0=no maximum)", set_maxrefreshfreq);
OSD_RegisterFunction("r_windowpositioning", "r_windowpositioning: enable/disable window position memory", set_windowpos);
return 0;
}
//
// uninitsystem() -- uninit systems
//
void uninitsystem(void)
{
DestroyAppWindow();
startwin_close();
uninitinput();
uninittimer();
win_allowtaskswitching(1);
#if defined(USE_OPENGL) && defined(POLYMOST)
unloadgldriver();
#endif
}
//
// initprintf() -- prints a string to the intitialization window
//
void initprintf(const char *f, ...)
{
va_list va;
char buf[1024];
va_start(va, f);
Bvsnprintf(buf, 1024, f, va);
va_end(va);
OSD_Printf(buf);
startwin_puts(buf);
handleevents();
}
//
// debugprintf() -- sends a debug string to the debugger
//
void debugprintf(const char *f, ...)
{
#ifdef DEBUGGINGAIDS
va_list va;
char buf[1024];
if (!IsDebuggerPresent()) return;
va_start(va,f);
Bvsnprintf(buf, 1024, f, va);
va_end(va);
OutputDebugString(buf);
#else
UNREFERENCED_PARAMETER(f);
#endif
}
//
// handleevents() -- process the Windows message queue
// returns !0 if there was an important event worth checking (like quitting)
//
int handleevents(void)
{
int rv=0;
MSG msg;
//if (frameplace && fullscreen) printf("Offscreen buffer is locked!\n");
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if (msg.message == WM_QUIT)
quitevent = 1;
if (startwin_idle((void*)&msg) > 0) continue;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
ProcessInputDevices();
if (!appactive || quitevent) rv = -1;
sampletimer();
return rv;
}
inline void idle(void)
{
Sleep(1);
}
//-------------------------------------------------------------------------------------------------
// INPUT (MOUSE/KEYBOARD/JOYSTICK?)
//=================================================================================================
#define KEYBOARD 0
#define MOUSE 1
#define JOYSTICK 2
#define NUM_INPUTS 3
static HMODULE hDInputDLL = NULL;
static LPDIRECTINPUTA lpDI = NULL;
static LPDIRECTINPUTDEVICE2A lpDID[NUM_INPUTS] = { NULL, NULL, NULL };
static BOOL bDInputInited = FALSE;
#define INPUT_BUFFER_SIZE 32
static GUID guidDevs[NUM_INPUTS];
static char devacquired[NUM_INPUTS] = { 0,0,0 };
static HANDLE inputevt[NUM_INPUTS] = {0,0,0};
static int joyblast=0;
static char volatile moustat = 0, mousegrab = 0;
HANDLE mousethread;
static struct
{
char *name;
LPDIRECTINPUTDEVICE2A *did;
const DIDATAFORMAT *df;
} devicedef[NUM_INPUTS] =
{
{ "keyboard", &lpDID[KEYBOARD], &c_dfDIKeyboard },
{ "mouse", &lpDID[MOUSE], &c_dfDIMouse },
{ "joystick", &lpDID[JOYSTICK], &c_dfDIJoystick }
};
static struct _joydef
{
const char *name;
unsigned ofs; // directinput 'dwOfs' value
} *axisdefs = NULL, *buttondefs = NULL, *hatdefs = NULL;
struct _joydevicefeature
{
unsigned int ofs;
const char *name;
};
struct _joydevicedefn
{
unsigned int devid; // is the value of DIDEVICEINSTANCE.guidProduct.Data1
int nfeatures;
struct _joydevicefeature *features;
};
// This is to give more realistic names to the buttons, axes, etc on a controller than
// those the driver reports. Curse inconsistency.
struct _joydevicefeature joyfeatures_C20A046D[] = // Logitech WingMan RumblePad USB
{
{ 0, "Left Stick X" }, { 4, "Left Stick Y" }, { 8, "Right Stick X" },
{ 20, "Right Stick Y" }, { 24, "Throttle" },
};
struct _joydevicefeature joyfeatures_C218046D[] = // Logitech RumblePad 2 USB
{
{ 0, "Left Stick X" }, { 4, "Left Stick Y" }, { 8, "Right Stick X" },
{ 20, "Right Stick Y" }, { 32, "D-Pad" }, { 48, "Button 1" },
{ 49, "Button 2" }, { 50, "Button 3" }, { 51, "Button 4" },
{ 52, "Button 5" }, { 53, "Button 6" }, { 54, "Button 7" },
{ 55, "Button 8" }, { 56, "Button 9" }, { 57, "Button 10" },
{ 58, "Left Stick Press" }, { 59, "Right Stick Press" },
};
#define featurecount(x) (sizeof(x)/sizeof(struct _joydevicefeature))
static struct _joydevicedefn *thisjoydef = NULL, joyfeatures[] =
{
{ 0xC20A046D, featurecount(joyfeatures_C20A046D), joyfeatures_C20A046D }, // Logitech WingMan RumblePad USB
{ 0xC218046D, featurecount(joyfeatures_C218046D), joyfeatures_C218046D }, // Logitech RumblePad 2 USB
};
#undef featurecount
// I don't see any pressing need to store the key-up events yet
#define SetKey(key,state) { \
keystatus[remap[key]] = state; \
if (state) { \
keyfifo[keyfifoend] = remap[key]; \
keyfifo[(keyfifoend+1)&(KEYFIFOSIZ-1)] = state; \
keyfifoend = ((keyfifoend+2)&(KEYFIFOSIZ-1)); \
} \
}
//
// initinput() -- init input system
//
int initinput(void)
{
int i;
moustat=0;
memset(keystatus, 0, sizeof(keystatus));
if (!remapinit)for (i=0;i<256;i++)remap[i]=i;remapinit=1;
keyfifoplc = keyfifoend = 0;
keyasciififoplc = keyasciififoend = 0;
inputdevices = 0;
joyisgamepad=0, joynumaxes=0, joynumbuttons=0, joynumhats=0;
if (InitDirectInput())
return -1;
return 0;
}
//
// uninitinput() -- uninit input system
//
void uninitinput(void)
{
uninitmouse();
UninitDirectInput();
}
//
// bgetchar, bkbhit, bflushchars -- character-based input functions
//
unsigned char bgetchar(void)
{
unsigned char c;
if (keyasciififoplc == keyasciififoend) return 0;
c = keyasciififo[keyasciififoplc];
keyasciififoplc = ((keyasciififoplc+1)&(KEYFIFOSIZ-1));
//OSD_Printf("bgetchar %d, %d-%d\n",c,keyasciififoplc,keyasciififoend);
return c;
}
int bkbhit(void)
{
return (keyasciififoplc != keyasciififoend);
}
void bflushchars(void)
{
keyasciififoplc = keyasciififoend = 0;
}
//
// set{key|mouse|joy}presscallback() -- sets a callback which gets notified when keys are pressed
//
void setkeypresscallback(void (*callback)(int, int)) { keypresscallback = callback; }
void setmousepresscallback(void (*callback)(int, int)) { mousepresscallback = callback; }
void setjoypresscallback(void (*callback)(int, int)) { joypresscallback = callback; }
DWORD WINAPI MouseFunc()
{
while (moustat&&lpDID[MOUSE])
{
if (!appactive)Sleep(50);else
if ((WaitForSingleObject(inputevt[MOUSE], INFINITE)) == WAIT_OBJECT_0)
{
ProcessMouse();
}
}
return 0;
}
//
// initmouse() -- init mouse input
//
int initmouse(void)
{
DWORD threadid;
if (moustat) return 0;
initprintf("Initializing mouse... ");
moustat=1;
mousethread = CreateThread
(
NULL,
0,
MouseFunc,
NULL,
CREATE_SUSPENDED,
&threadid
);
if (!mousethread)
{
initprintf("FAILED!\n");
return 0;
}
SetThreadPriority(mousethread, THREAD_PRIORITY_HIGHEST);
ResumeThread(mousethread);
initprintf("OK\n");
// grab input
grabmouse(1);
return 0;
}
//
// uninitmouse() -- uninit mouse input
//
void uninitmouse(void)
{
if (!moustat) return;
grabmouse(0);
moustat=mousegrab=0;
SetEvent(inputevt[MOUSE]);
if (WaitForSingleObject(mousethread, 300) == WAIT_OBJECT_0)
initprintf("DirectInput: Mouse thread has exited\n");
else
initprintf("DirectInput: Mouse thread failed to exit!\n");
}
//
// grabmouse() -- show/hide mouse cursor
//
void grabmouse(char a)
{
if (!moustat) return;
mousegrab = a;
AcquireInputDevices(a,MOUSE); // only release or grab the mouse
mousex = 0;
mousey = 0;
mouseb = 0;
}
//
// readmousexy() -- return mouse motion information
//
void readmousexy(int *x, int *y)
{
if (!moustat || !devacquired[MOUSE] || !mousegrab) { *x = *y = 0; return; }
*x = mousex;
*y = mousey;
mousex -= *x;
mousey -= *y;
}
//
// readmousebstatus() -- return mouse button information
//
void readmousebstatus(int *b)
{
if (!moustat || !devacquired[MOUSE] || !mousegrab) *b = 0;
else *b = mouseb;
}
//
// setjoydeadzone() -- sets the dead and saturation zones for the joystick
//
void setjoydeadzone(int axis, unsigned short dead, unsigned short satur)
{
DIPROPDWORD dipdw;
HRESULT result;
if (!lpDID[JOYSTICK]) return;
if (dead > 10000) dead = 10000;
if (satur > 10000) satur = 10000;
if (dead >= satur) dead = satur-100;
if (axis >= joynumaxes) return;
memset(&dipdw, 0, sizeof(dipdw));
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
if (axis < 0)
{
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
}
else
{
dipdw.diph.dwObj = axisdefs[axis].ofs;
dipdw.diph.dwHow = DIPH_BYOFFSET;
}
dipdw.dwData = dead;
result = IDirectInputDevice2_SetProperty(lpDID[JOYSTICK], DIPROP_DEADZONE, &dipdw.diph);
if FAILED(result)
{
//ShowDInputErrorBox("Failed setting joystick dead zone", result);
initprintf("Failed setting joystick dead zone: %s\n", GetDInputError(result));
return;
}
dipdw.dwData = satur;
result = IDirectInputDevice2_SetProperty(lpDID[JOYSTICK], DIPROP_SATURATION, &dipdw.diph);
if FAILED(result)
{
//ShowDInputErrorBox("Failed setting joystick saturation point", result);
initprintf("Failed setting joystick saturation point: %s\n", GetDInputError(result));
return;
}
}
//
// getjoydeadzone() -- gets the dead and saturation zones for the joystick
//
void getjoydeadzone(int axis, unsigned short *dead, unsigned short *satur)
{
DIPROPDWORD dipdw;
HRESULT result;
if (!dead || !satur) return;
if (!lpDID[JOYSTICK]) { *dead = *satur = 0; return; }
if (axis >= joynumaxes) { *dead = *satur = 0; return; }
memset(&dipdw, 0, sizeof(dipdw));
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
if (axis < 0)
{
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
}
else
{
dipdw.diph.dwObj = axisdefs[axis].ofs;
dipdw.diph.dwHow = DIPH_BYOFFSET;
}
result = IDirectInputDevice2_GetProperty(lpDID[JOYSTICK], DIPROP_DEADZONE, &dipdw.diph);
if FAILED(result)
{
//ShowDInputErrorBox("Failed getting joystick dead zone", result);
initprintf("Failed getting joystick dead zone: %s\n", GetDInputError(result));
return;
}
*dead = dipdw.dwData;
result = IDirectInputDevice2_GetProperty(lpDID[JOYSTICK], DIPROP_SATURATION, &dipdw.diph);
if FAILED(result)
{
//ShowDInputErrorBox("Failed getting joystick saturation point", result);
initprintf("Failed getting joystick saturation point: %s\n", GetDInputError(result));
return;
}
*satur = dipdw.dwData;
}
void releaseallbuttons(void)
{
int i;
if (mousepresscallback)
{
if (mouseb & 1) mousepresscallback(1, 0);
if (mouseb & 2) mousepresscallback(2, 0);
if (mouseb & 4) mousepresscallback(3, 0);
if (mouseb & 8) mousepresscallback(4, 0);
if (mousewheel[0]>0) mousepresscallback(5,0);
if (mousewheel[1]>0) mousepresscallback(6,0);
}
mousewheel[0]=mousewheel[1]=0;
mouseb = 0;
if (joypresscallback)
{
for (i=0;i<32;i++)
if (joyb & (1<<i)) joypresscallback(i+1, 0);
}
joyb = joyblast = 0;
for (i=0;i<256;i++)
{
//if (!keystatus[i]) continue;
//if (OSD_HandleKey(i, 0) != 0) {
OSD_HandleKey(i, 0);
SetKey(i, 0);
if (keypresscallback) keypresscallback(i, 0);
//}
}
lastKeyDown = lastKeyTime = 0;
}
//
// InitDirectInput() -- get DirectInput started
//
// device enumerator
static BOOL CALLBACK InitDirectInput_enum(LPCDIDEVICEINSTANCE lpddi, LPVOID pvRef)
{
const char *d;
UNREFERENCED_PARAMETER(pvRef);
#define COPYGUID(d,s) memcpy(&d,&s,sizeof(GUID))
switch (lpddi->dwDevType&0xff)
{
case DIDEVTYPE_KEYBOARD:
inputdevices |= (1<<KEYBOARD);
d = "KEYBOARD";
COPYGUID(guidDevs[KEYBOARD],lpddi->guidInstance);
break;
case DIDEVTYPE_MOUSE:
inputdevices |= (1<<MOUSE);
d = "MOUSE";
COPYGUID(guidDevs[MOUSE],lpddi->guidInstance);
break;
case DIDEVTYPE_JOYSTICK:
{
int i;
inputdevices |= (1<<JOYSTICK);
joyisgamepad = ((lpddi->dwDevType & (DIDEVTYPEJOYSTICK_GAMEPAD<<8)) != 0);
d = joyisgamepad ? "GAMEPAD" : "JOYSTICK";
COPYGUID(guidDevs[JOYSTICK],lpddi->guidInstance);
thisjoydef = NULL;
for (i=0; i<(int)(sizeof(joyfeatures)/sizeof(joyfeatures[0])); i++)
{
if (lpddi->guidProduct.Data1 == joyfeatures[i].devid)
{
thisjoydef = &joyfeatures[i];
break;
}
}
// Outputs the GUID of the joystick to the console
/*
initprintf("GUID = {%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}\n",
lpddi->guidProduct.Data1,
lpddi->guidProduct.Data2, lpddi->guidProduct.Data3,
lpddi->guidProduct.Data4[0], lpddi->guidProduct.Data4[1],
lpddi->guidProduct.Data4[2], lpddi->guidProduct.Data4[3],
lpddi->guidProduct.Data4[4], lpddi->guidProduct.Data4[5],
lpddi->guidProduct.Data4[6], lpddi->guidProduct.Data4[7]
);
*/
}
break;
default:
d = "OTHER"; break;
}
initprintf(" * %s: %s\n", d, lpddi->tszProductName);
return DIENUM_CONTINUE;
}
static const char *joyfindnameforofs(int ofs)
{
int i;
if (!thisjoydef) return NULL;
for (i=0;i<thisjoydef->nfeatures;i++)
{
if (ofs == (int)thisjoydef->features[i].ofs)
return Bstrdup(thisjoydef->features[i].name);
}
return NULL;
}
static BOOL CALLBACK InitDirectInput_enumobjects(LPCDIDEVICEOBJECTINSTANCE lpddoi, LPVOID pvRef)
{
int *typecounts = (int*)pvRef;
if (lpddoi->dwType & DIDFT_AXIS)
{
//initprintf(" Axis: %s (dwOfs=%d)\n", lpddoi->tszName, lpddoi->dwOfs);
axisdefs[ typecounts[0] ].name = joyfindnameforofs(lpddoi->dwOfs);
if (!axisdefs[ typecounts[0] ].name)
axisdefs[ typecounts[0] ].name = Bstrdup(lpddoi->tszName);
axisdefs[ typecounts[0] ].ofs = lpddoi->dwOfs;
typecounts[0]++;
}
else if (lpddoi->dwType & DIDFT_BUTTON)
{
//initprintf(" Button: %s (dwOfs=%d)\n", lpddoi->tszName, lpddoi->dwOfs);
buttondefs[ typecounts[1] ].name = joyfindnameforofs(lpddoi->dwOfs);
if (!buttondefs[ typecounts[1] ].name)
buttondefs[ typecounts[1] ].name = Bstrdup(lpddoi->tszName);
buttondefs[ typecounts[1] ].ofs = lpddoi->dwOfs;
typecounts[1]++;
}
else if (lpddoi->dwType & DIDFT_POV)
{
//initprintf(" POV: %s (dwOfs=%d)\n", lpddoi->tszName, lpddoi->dwOfs);
hatdefs[ typecounts[2] ].name = joyfindnameforofs(lpddoi->dwOfs);
if (!hatdefs[ typecounts[2] ].name)
hatdefs[ typecounts[2] ].name = Bstrdup(lpddoi->tszName);
hatdefs[ typecounts[2] ].ofs = lpddoi->dwOfs;
typecounts[2]++;
}
return DIENUM_CONTINUE;
}
#define HorribleDInputDeath( x, y ) \
ShowDInputErrorBox(x,y); \
UninitDirectInput(); \
return TRUE
static BOOL InitDirectInput(void)
{
HRESULT result;
HRESULT(WINAPI *aDirectInputCreateA)(HINSTANCE, DWORD, LPDIRECTINPUTA *, LPUNKNOWN);
DIPROPDWORD dipdw;
LPDIRECTINPUTDEVICEA dev;
LPDIRECTINPUTDEVICE2A dev2;
DIDEVCAPS didc;
int devn;
if (bDInputInited) return FALSE;
initprintf("Initializing DirectInput...\n");
// load up the DirectInput DLL
if (!hDInputDLL)
{
initprintf(" - Loading DINPUT.DLL\n");
hDInputDLL = LoadLibrary("DINPUT.DLL");
if (!hDInputDLL)
{
ShowErrorBox("Error loading DINPUT.DLL");
return TRUE;
}
}
// get the pointer to DirectInputCreate
aDirectInputCreateA = (void *)GetProcAddress(hDInputDLL, "DirectInputCreateA");
if (!aDirectInputCreateA) ShowErrorBox("Error fetching DirectInputCreateA()");
// create a new DirectInput object
initprintf(" - Creating DirectInput object\n");
result = aDirectInputCreateA(hInstance, DIRECTINPUT_VERSION, &lpDI, NULL);
if FAILED(result) { HorribleDInputDeath("DirectInputCreateA() failed", result); }
else if (result != DI_OK) initprintf(" Created DirectInput object with warning: %s\n",GetDInputError(result));
// enumerate devices to make us look fancy
initprintf(" - Enumerating attached input devices\n");
inputdevices = 0;
result = IDirectInput_EnumDevices(lpDI, 0, InitDirectInput_enum, NULL, DIEDFL_ATTACHEDONLY);
if FAILED(result) { HorribleDInputDeath("Failed enumerating attached input devices", result); }
else if (result != DI_OK) initprintf(" Enumerated input devices with warning: %s\n",GetDInputError(result));
if (!(inputdevices & (1<<KEYBOARD)))
{
ShowErrorBox("No keyboard detected!");
UninitDirectInput();
return TRUE;
}
// ***
// create the devices
// ***
for (devn = 0; devn < NUM_INPUTS; devn++)
{
if ((inputdevices & (1<<devn)) == 0) continue;
*devicedef[devn].did = NULL;
initprintf(" - Creating %s device\n", devicedef[devn].name);
result = IDirectInput_CreateDevice(lpDI, &guidDevs[devn], &dev, NULL);
if FAILED(result) { HorribleDInputDeath("Failed creating device", result); }
else if (result != DI_OK) initprintf(" Created device with warning: %s\n",GetDInputError(result));
result = IDirectInputDevice_QueryInterface(dev, &IID_IDirectInputDevice2, (LPVOID *)&dev2);
IDirectInputDevice_Release(dev);
if FAILED(result) { HorribleDInputDeath("Failed querying DirectInput2 interface for device", result); }
else if (result != DI_OK) initprintf(" Queried IDirectInputDevice2 interface with warning: %s\n",GetDInputError(result));
result = IDirectInputDevice2_SetDataFormat(dev2, devicedef[devn].df);
if FAILED(result) { IDirectInputDevice_Release(dev2); HorribleDInputDeath("Failed setting data format", result); }
else if (result != DI_OK) initprintf(" Set data format with warning: %s\n",GetDInputError(result));
inputevt[devn] = CreateEvent(NULL, FALSE, FALSE, NULL);
if (inputevt[devn] == NULL)
{
IDirectInputDevice_Release(dev2);
ShowErrorBox("Couldn't create event object");
UninitDirectInput();
return TRUE;
}
result = IDirectInputDevice2_SetEventNotification(dev2, inputevt[devn]);
if FAILED(result) { IDirectInputDevice_Release(dev2); HorribleDInputDeath("Failed setting event object", result); }
else if (result != DI_OK) initprintf(" Set event object with warning: %s\n",GetDInputError(result));
IDirectInputDevice2_Unacquire(dev2);
memset(&dipdw, 0, sizeof(dipdw));
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = INPUT_BUFFER_SIZE;
result = IDirectInputDevice2_SetProperty(dev2, DIPROP_BUFFERSIZE, &dipdw.diph);
if FAILED(result) { IDirectInputDevice_Release(dev2); HorribleDInputDeath("Failed setting buffering", result); }
else if (result != DI_OK) initprintf(" Set buffering with warning: %s\n",GetDInputError(result));
// set up device
if (devn == JOYSTICK)
{
int typecounts[3] = {0,0,0};
memset(&didc, 0, sizeof(didc));
didc.dwSize = sizeof(didc);
result = IDirectInputDevice2_GetCapabilities(dev2, &didc);
if FAILED(result) { IDirectInputDevice_Release(dev2); HorribleDInputDeath("Failed getting joystick capabilities", result); }
else if (result != DI_OK) initprintf(" Fetched joystick capabilities with warning: %s\n",GetDInputError(result));
joynumaxes = (char)didc.dwAxes;
joynumbuttons = min(32,(char)didc.dwButtons);
joynumhats = (char)didc.dwPOVs;
initprintf("Joystick has %d axes, %d buttons, and %d hat(s).\n",joynumaxes,joynumbuttons,joynumhats);
axisdefs = (struct _joydef *)Bcalloc(didc.dwAxes, sizeof(struct _joydef));
buttondefs = (struct _joydef *)Bcalloc(didc.dwButtons, sizeof(struct _joydef));
hatdefs = (struct _joydef *)Bcalloc(didc.dwPOVs, sizeof(struct _joydef));
joyaxis = (int *)Bcalloc(didc.dwAxes, sizeof(int));
joyhat = (int *)Bcalloc(didc.dwPOVs, sizeof(int));
result = IDirectInputDevice2_EnumObjects(dev2, InitDirectInput_enumobjects, (LPVOID)typecounts, DIDFT_ALL);
if FAILED(result) { IDirectInputDevice_Release(dev2); HorribleDInputDeath("Failed getting joystick features", result); }
else if (result != DI_OK) initprintf(" Fetched joystick features with warning: %s\n",GetDInputError(result));
}
*devicedef[devn].did = dev2;
}
GetKeyNames();
memset(devacquired, 0, sizeof(devacquired));
bDInputInited = TRUE;
return FALSE;
}
//
// UninitDirectInput() -- clean up DirectInput
//
static void UninitDirectInput(void)
{
int devn;
int i;
if (bDInputInited) initprintf("Uninitializing DirectInput...\n");
AcquireInputDevices(0,-1);
if (axisdefs)
{
for (i=joynumaxes-1; i>=0; i--) if (axisdefs[i].name) free((void*)axisdefs[i].name);
free(axisdefs); axisdefs = NULL;
}
if (buttondefs)
{
for (i=joynumbuttons-1; i>=0; i--) if (buttondefs[i].name) free((void*)buttondefs[i].name);
free(buttondefs); buttondefs = NULL;
}
if (hatdefs)
{
for (i=joynumhats-1; i>=0; i--) if (hatdefs[i].name) free((void*)hatdefs[i].name);
free(hatdefs); hatdefs = NULL;
}
for (devn = 0; devn < NUM_INPUTS; devn++)
{
if (*devicedef[devn].did)
{
initprintf(" - Releasing %s device\n", devicedef[devn].name);
if (devn != JOYSTICK) IDirectInputDevice2_SetEventNotification(*devicedef[devn].did, NULL);
IDirectInputDevice2_Release(*devicedef[devn].did);
*devicedef[devn].did = NULL;
}
if (inputevt[devn])
{
CloseHandle(inputevt[devn]);
inputevt[devn] = NULL;
}
}
if (lpDI)
{
initprintf(" - Releasing DirectInput object\n");
IDirectInput_Release(lpDI);
lpDI = NULL;
}
if (hDInputDLL)
{
initprintf(" - Unloading DINPUT.DLL\n");
FreeLibrary(hDInputDLL);
hDInputDLL = NULL;
}
bDInputInited = FALSE;
}
//
// GetKeyNames() -- retrieves the names for all the keys on the keyboard
//
static void GetKeyNames(void)
{
int i;
DIDEVICEOBJECTINSTANCE key;
HRESULT res;
char tbuf[MAX_PATH];
memset(keynames,0,sizeof(keynames));
for (i=0;i<256;i++)
{
ZeroMemory(&key,sizeof(key));
key.dwSize = sizeof(DIDEVICEOBJECTINSTANCE);
res = IDirectInputDevice_GetObjectInfo(*devicedef[KEYBOARD].did, &key, i, DIPH_BYOFFSET);
if (FAILED(res)) continue;
CharToOem(key.tszName, tbuf);
strncpy((char *)keynames[i], tbuf, sizeof(keynames[i])-1);
}
}
const unsigned char *getkeyname(int num)
{
if ((unsigned)num >= 256) return NULL;
return keynames[num];
}
const unsigned char *getjoyname(int what, int num)
{
switch (what)
{
case 0: // axis
if ((unsigned)num > (unsigned)joynumaxes) return NULL;
return (unsigned char *)axisdefs[num].name;
case 1: // button
if ((unsigned)num > (unsigned)joynumbuttons) return NULL;
return (unsigned char *)buttondefs[num].name;
case 2: // hat
if ((unsigned)num > (unsigned)joynumhats) return NULL;
return (unsigned char *)hatdefs[num].name;
default:
return NULL;
}
}
//
// AcquireInputDevices() -- (un)acquires the input devices
//
static void AcquireInputDevices(char acquire, signed char device)
{
DWORD flags;
HRESULT result;
int i;
if (!bDInputInited) return;
if (!hWindow) return;
if (acquire)
{
// if (!appactive) return; // why acquire when inactive?
for (i=0; i<NUM_INPUTS; i++)
{
if (! *devicedef[i].did) continue;
if (device != -1 && i != device) continue; // don't touch other devices if only the mouse is wanted
else if (!mousegrab && i == MOUSE) continue; // don't grab the mouse if we don't want it grabbed
IDirectInputDevice2_Unacquire(*devicedef[i].did);
if (i == MOUSE/* && fullscreen*/) flags = DISCL_FOREGROUND|DISCL_EXCLUSIVE;
else flags = DISCL_FOREGROUND|DISCL_NONEXCLUSIVE;
result = IDirectInputDevice2_SetCooperativeLevel(*devicedef[i].did, hWindow, flags);
if (FAILED(result))
initprintf("IDirectInputDevice2_SetCooperativeLevel(%s): %s\n",
devicedef[i].name, GetDInputError(result));
if (SUCCEEDED(IDirectInputDevice2_Acquire(*devicedef[i].did)))
devacquired[i] = 1;
else
devacquired[i] = 0;
}
}
else
{
releaseallbuttons();
for (i=0; i<NUM_INPUTS; i++)
{
if (! *devicedef[i].did) continue;
if (device != -1 && i != device) continue; // don't touch other devices if only the mouse is wanted
IDirectInputDevice2_Unacquire(*devicedef[i].did);
result = IDirectInputDevice2_SetCooperativeLevel(*devicedef[i].did, hWindow, DISCL_FOREGROUND|DISCL_NONEXCLUSIVE);
if (FAILED(result))
initprintf("IDirectInputDevice2_SetCooperativeLevel(%s): %s\n",
devicedef[i].name, GetDInputError(result));
devacquired[i] = 0;
}
}
}
static void ProcessMouse()
{
DWORD i;
unsigned t;
int result;
DIDEVICEOBJECTDATA didod[INPUT_BUFFER_SIZE];
DWORD dwElements = INPUT_BUFFER_SIZE;
while (1)
{
t = getticks();
if (!mousegrab) break;
result = IDirectInputDevice2_GetDeviceData(lpDID[MOUSE], sizeof(DIDEVICEOBJECTDATA),
(LPDIDEVICEOBJECTDATA)&didod, &dwElements, 0);
if (FAILED(result) || !dwElements)break;
if (result == DI_OK)
{
// process the mouse events
// mousex=0;
// mousey=0;
for (i=0; i<dwElements; i++)
{
switch (didod[i].dwOfs)
{
case DIMOFS_BUTTON0:
if (didod[i].dwData & 0x80) mouseb |= 1;
else mouseb &= ~1;
if (mousepresscallback)
mousepresscallback(1, (mouseb&1)==1);
break;
case DIMOFS_BUTTON1:
if (didod[i].dwData & 0x80) mouseb |= 2;
else mouseb &= ~2;
if (mousepresscallback)
mousepresscallback(2, (mouseb&2)==2);
break;
case DIMOFS_BUTTON2:
if (didod[i].dwData & 0x80) mouseb |= 4;
else mouseb &= ~4;
if (mousepresscallback)
mousepresscallback(3, (mouseb&4)==4);
break;
case DIMOFS_BUTTON3:
if (didod[i].dwData & 0x80) mouseb |= 8;
else mouseb &= ~8;
if (mousepresscallback)
mousepresscallback(4, (mouseb&8)==8);
break;
case DIMOFS_X:
mousex += (short)didod[i].dwData; break;
case DIMOFS_Y:
mousey += (short)didod[i].dwData; break;
case DIMOFS_Z:
if ((int)didod[i].dwData > 0) // wheel up
{
if (mousewheel[0] > 0 && mousepresscallback) mousepresscallback(5,0);
mousewheel[0] = t;
mouseb |= 16; if (mousepresscallback) mousepresscallback(5, 1);
}
else if ((int)didod[i].dwData < 0) // wheel down
{
if (mousewheel[1] > 0 && mousepresscallback) mousepresscallback(6,0);
mousewheel[1] = t;
mouseb |= 32; if (mousepresscallback) mousepresscallback(6, 1);
}
break;
}
}
}
}
}
//
// ProcessInputDevices() -- processes the input devices
//
static void ProcessInputDevices(void)
{
DWORD i;
HRESULT result;
DIDEVICEOBJECTDATA didod[INPUT_BUFFER_SIZE];
DWORD dwElements = INPUT_BUFFER_SIZE;
DWORD ev;
unsigned t,u;
unsigned idevnums[NUM_INPUTS], numdevs = 0;
HANDLE waithnds[NUM_INPUTS];
for (t = 0; t < NUM_INPUTS; t++)
{
if (*devicedef[t].did&&t!=MOUSE)
{
result = IDirectInputDevice2_Poll(*devicedef[t].did);
if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED)
{
if (SUCCEEDED(IDirectInputDevice2_Acquire(*devicedef[t].did)))
{
devacquired[t] = 1;
IDirectInputDevice2_Poll(*devicedef[t].did);
}
else
{
devacquired[t] = 0;
}
}
if (devacquired[t])
{
waithnds[numdevs] = inputevt[t];
idevnums[numdevs] = t;
numdevs++;
}
}
}
t = getticks();
// do this here because we only want the wheel to signal once, but hold the state for a moment
if (mousegrab)
{
if (mousewheel[0] > 0 && t - mousewheel[0] > MouseWheelFakePressTime)
{
if (mousepresscallback) mousepresscallback(5,0);
mousewheel[0] = 0; mouseb &= ~16;
}
if (mousewheel[1] > 0 && t - mousewheel[1] > MouseWheelFakePressTime)
{
if (mousepresscallback) mousepresscallback(6,0);
mousewheel[1] = 0; mouseb &= ~32;
}
}
if (numdevs == 0) return; // nothing to do
// use event objects so that we can quickly get indication of when data is ready
// to be read and input events processed
ev = MsgWaitForMultipleObjects(numdevs, waithnds, FALSE, 0, 0);
if (/*(ev >= WAIT_OBJECT_0) &&*/ (ev < (WAIT_OBJECT_0+numdevs)))
{
switch (idevnums[ev - WAIT_OBJECT_0])
{
case KEYBOARD: // keyboard
if (!lpDID[KEYBOARD]) break;
result = IDirectInputDevice2_GetDeviceData(lpDID[KEYBOARD], sizeof(DIDEVICEOBJECTDATA),
(LPDIDEVICEOBJECTDATA)&didod, &dwElements, 0);
if (result == DI_OK)
{
DWORD k, numlockon = FALSE;
numlockon = (GetKeyState(VK_NUMLOCK) & 1);
// process the key events
for (i=0; i<dwElements; i++)
{
k = didod[i].dwOfs;
if (k == DIK_PAUSE) continue; // fucking pause
//if (IsDebuggerPresent() && k == DIK_F12) continue;
// hook in the osd
if (OSD_HandleKey(k, (didod[i].dwData & 0x80)) != 0)
{
SetKey(k, (didod[i].dwData & 0x80) == 0x80);
if (keypresscallback)
keypresscallback(k, (didod[i].dwData & 0x80) == 0x80);
}
if (((lastKeyDown & 0x7fffffffl) == k) && !(didod[i].dwData & 0x80))
lastKeyDown = 0;
else if (didod[i].dwData & 0x80)
{
lastKeyDown = k;
lastKeyTime = t;
}
}
}
break;
case JOYSTICK: // joystick
if (!lpDID[JOYSTICK]) break;
result = IDirectInputDevice2_GetDeviceData(lpDID[JOYSTICK], sizeof(DIDEVICEOBJECTDATA),
(LPDIDEVICEOBJECTDATA)&didod, &dwElements, 0);
if (result == DI_OK)
{
int j;
for (i=0; i<dwElements; i++)
{
// check axes
for (j=0; j<joynumaxes; j++)
{
if (axisdefs[j].ofs != didod[i].dwOfs) continue;
joyaxis[j] = didod[i].dwData - 32767;
break;
}
if (j<joynumaxes) continue;
// check buttons
for (j=0; j<joynumbuttons; j++)
{
if (buttondefs[j].ofs != didod[i].dwOfs) continue;
if (didod[i].dwData & 0x80) joyb |= (1<<j);
else joyb &= ~(1<<j);
if (joypresscallback)
joypresscallback(j+1, (didod[i].dwData & 0x80)==0x80);
break;
}
if (j<joynumbuttons) continue;
// check hats
for (j=0; j<joynumhats; j++)
{
if (hatdefs[j].ofs != didod[i].dwOfs) continue;
joyhat[j] = didod[i].dwData;
break;
}
}
/*
OSD_Printf("axes:");
for (i=0;i<joynumaxes;i++) OSD_Printf(" %d", joyaxis[i]);
OSD_Printf(" - buttons: %x - hats:", joyb);
for (i=0;i<joynumhats;i++) OSD_Printf(" %d", joyhat[i]);
OSD_Printf("\n");
*/
}
break;
}
}
// key repeat
// this is like this because the period of t is 1000ms
if (lastKeyDown > 0)
{
u = (1000 + t - lastKeyTime)%1000;
if ((u >= 250) && !(lastKeyDown&0x80000000l))
{
if (OSD_HandleKey(lastKeyDown, 1) != 0)
SetKey(lastKeyDown, 1);
lastKeyDown |= 0x80000000l;
lastKeyTime = t;
}
else if ((u >= 30) && (lastKeyDown&0x80000000l))
{
if (OSD_HandleKey(lastKeyDown&(0x7fffffffl), 1) != 0)
SetKey(lastKeyDown&(0x7fffffffl), 1);
lastKeyTime = t;
}
}
}
//
// ShowDInputErrorBox() -- shows an error message box for a DirectInput error
//
static void ShowDInputErrorBox(const char *m, HRESULT r)
{
TCHAR msg[1024];
wsprintf(msg, "%s: %s", m, GetDInputError(r));
MessageBox(0, msg, apptitle, MB_OK|MB_ICONSTOP);
}
//
// GetDInputError() -- stinking huge list of error messages since MS didn't want to include
// them in the DLL
//
static const char * GetDInputError(HRESULT code)
{
switch (code)
{
case DI_OK:
return "DI_OK";
case DI_BUFFEROVERFLOW:
return "DI_BUFFEROVERFLOW";
case DI_DOWNLOADSKIPPED:
return "DI_DOWNLOADSKIPPED";
case DI_EFFECTRESTARTED:
return "DI_EFFECTRESTARTED";
case DI_POLLEDDEVICE:
return "DI_POLLEDDEVICE";
case DI_TRUNCATED:
return "DI_TRUNCATED";
case DI_TRUNCATEDANDRESTARTED:
return "DI_TRUNCATEDANDRESTARTED";
case DIERR_ACQUIRED:
return "DIERR_ACQUIRED";
case DIERR_ALREADYINITIALIZED:
return "DIERR_ALREADYINITIALIZED";
case DIERR_BADDRIVERVER:
return "DIERR_BADDRIVERVER";
case DIERR_BETADIRECTINPUTVERSION:
return "DIERR_BETADIRECTINPUTVERSION";
case DIERR_DEVICEFULL:
return "DIERR_DEVICEFULL";
case DIERR_DEVICENOTREG:
return "DIERR_DEVICENOTREG";
case DIERR_EFFECTPLAYING:
return "DIERR_EFFECTPLAYING";
case DIERR_HASEFFECTS:
return "DIERR_HASEFFECTS";
case DIERR_GENERIC:
return "DIERR_GENERIC";
case DIERR_HANDLEEXISTS:
return "DIERR_HANDLEEXISTS";
case DIERR_INCOMPLETEEFFECT:
return "DIERR_INCOMPLETEEFFECT";
case DIERR_INPUTLOST:
return "DIERR_INPUTLOST";
case DIERR_INVALIDPARAM:
return "DIERR_INVALIDPARAM";
case DIERR_MOREDATA:
return "DIERR_MOREDATA";
case DIERR_NOAGGREGATION:
return "DIERR_NOAGGREGATION";
case DIERR_NOINTERFACE:
return "DIERR_NOINTERFACE";
case DIERR_NOTACQUIRED:
return "DIERR_NOTACQUIRED";
case DIERR_NOTBUFFERED:
return "DIERR_NOTBUFFERED";
case DIERR_NOTDOWNLOADED:
return "DIERR_NOTDOWNLOADED";
case DIERR_NOTEXCLUSIVEACQUIRED:
return "DIERR_NOTEXCLUSIVEACQUIRED";
case DIERR_NOTFOUND:
return "DIERR_NOTFOUND";
case DIERR_NOTINITIALIZED:
return "DIERR_NOTINITIALIZED";
case DIERR_OLDDIRECTINPUTVERSION:
return "DIERR_OLDDIRECTINPUTVERSION";
case DIERR_OUTOFMEMORY:
return "DIERR_OUTOFMEMORY";
case DIERR_UNSUPPORTED:
return "DIERR_UNSUPPORTED";
case E_PENDING:
return "E_PENDING";
default:
break;
}
return "Unknown error";
}
//-------------------------------------------------------------------------------------------------
// TIMER
//=================================================================================================
static int64 timerfreq=0;
static int timerlastsample=0;
int timerticspersec=0;
static void (*usertimercallback)(void) = NULL;
// This timer stuff is all Ken's idea.
//
// installusertimercallback() -- set up a callback function to be called when the timer is fired
//
void (*installusertimercallback(void (*callback)(void)))(void)
{
void (*oldtimercallback)(void);
oldtimercallback = usertimercallback;
usertimercallback = callback;
return oldtimercallback;
}
//
// inittimer() -- initialize timer
//
int inittimer(int tickspersecond)
{
int64 t;
if (timerfreq) return 0; // already installed
// initprintf("Initializing timer\n");
// OpenWatcom seems to want us to query the value into a local variable
// instead of the global 'timerfreq' or else it gets pissed with an
// access violation
if (!QueryPerformanceFrequency((LARGE_INTEGER*)&t))
{
ShowErrorBox("Failed fetching timer frequency");
return -1;
}
timerfreq = t;
timerticspersec = tickspersecond;
QueryPerformanceCounter((LARGE_INTEGER*)&t);
timerlastsample = (int)(t*timerticspersec / timerfreq);
usertimercallback = NULL;
return 0;
}
//
// uninittimer() -- shut down timer
//
void uninittimer(void)
{
if (!timerfreq) return;
timerfreq=0;
timerticspersec = 0;
}
//
// sampletimer() -- update totalclock
//
void sampletimer(void)
{
int64 i;
int n;
if (!timerfreq) return;
QueryPerformanceCounter((LARGE_INTEGER*)&i);
n = (int)(i*timerticspersec / timerfreq) - timerlastsample;
if (n>0)
{
totalclock += n;
timerlastsample += n;
}
if (usertimercallback) for (; n>0; n--) usertimercallback();
}
//
// getticks() -- returns the windows ticks count
//
unsigned int getticks(void)
{
int64 i;
if (timerfreq == 0) return 0;
QueryPerformanceCounter((LARGE_INTEGER*)&i);
return (unsigned int)(i*longlong(1000)/timerfreq);
}
//
// gettimerfreq() -- returns the number of ticks per second the timer is configured to generate
//
int gettimerfreq(void)
{
return timerticspersec;
}
//-------------------------------------------------------------------------------------------------
// VIDEO
//=================================================================================================
// DirectDraw objects
static HMODULE hDDrawDLL = NULL;
static LPDIRECTDRAW lpDD = NULL;
static LPDIRECTDRAWSURFACE lpDDSPrimary = NULL;
static LPDIRECTDRAWSURFACE lpDDSBack = NULL;
static char * lpOffscreen = NULL;
static LPDIRECTDRAWPALETTE lpDDPalette = NULL;
static BOOL bDDrawInited = FALSE;
static DWORD DDdwCaps = 0, DDdwCaps2 = 0;
// DIB stuff
static HDC hDC = NULL; // opengl shares this
static HDC hDCSection = NULL;
static HBITMAP hDIBSection = NULL;
static HPALETTE hPalette = NULL;
static VOID *lpPixels = NULL;
#define NUM_SYS_COLOURS 25
static int syscolouridx[NUM_SYS_COLOURS] =
{
COLOR_SCROLLBAR, // 1
COLOR_BACKGROUND,
COLOR_ACTIVECAPTION,
COLOR_INACTIVECAPTION,
COLOR_MENU,
COLOR_WINDOW,
COLOR_WINDOWFRAME,
COLOR_MENUTEXT,
COLOR_WINDOWTEXT,
COLOR_CAPTIONTEXT, // 10
COLOR_ACTIVEBORDER,
COLOR_INACTIVEBORDER,
COLOR_APPWORKSPACE,
COLOR_HIGHLIGHT,
COLOR_HIGHLIGHTTEXT,
COLOR_BTNFACE,
COLOR_BTNSHADOW,
COLOR_GRAYTEXT,
COLOR_BTNTEXT,
COLOR_INACTIVECAPTIONTEXT, // 20
COLOR_BTNHIGHLIGHT,
COLOR_3DDKSHADOW,
COLOR_3DLIGHT,
COLOR_INFOTEXT,
COLOR_INFOBK // 25
};
static DWORD syscolours[NUM_SYS_COLOURS];
static char system_colours_saved = 0, bw_colours_set = 0;
static int setgammaramp(WORD gt[3][256]);
static int getgammaramp(WORD gt[3][256]);
//
// checkvideomode() -- makes sure the video mode passed is legal
//
int checkvideomode(int *x, int *y, int c, int fs, int forced)
{
int i, nearest=-1, dx, dy, odx=9999, ody=9999;
getvalidmodes();
// fix up the passed resolution values to be multiples of 8
// and at least 320x200 or at most MAXXDIMxMAXYDIM
if (*x < 320) *x = 320;
if (*y < 200) *y = 200;
if (*x > MAXXDIM) *x = MAXXDIM;
if (*y > MAXYDIM) *y = MAXYDIM;
*x &= 0xfffffff8l;
for (i=0; i<validmodecnt; i++)
{
if (validmode[i].bpp != c) continue;
if (validmode[i].fs != fs) continue;
dx = klabs(validmode[i].xdim - *x);
dy = klabs(validmode[i].ydim - *y);
if (!(dx | dy)) // perfect match
{
nearest = i;
break;
}
if ((dx <= odx) && (dy <= ody))
{
nearest = i;
odx = dx; ody = dy;
}
}
#ifdef ANY_WINDOWED_SIZE
if (!forced && (fs&1) == 0 && (nearest < 0 || validmode[nearest].xdim!=*x || validmode[nearest].ydim!=*y))
{
// check the colour depth is recognised at the very least
for (i=0;i<validmodecnt;i++)
if (validmode[i].bpp == c)
return 0x7fffffffl;
return -1; // strange colour depth
}
#endif
if (nearest < 0)
{
// no mode that will match (eg. if no fullscreen modes)
return -1;
}
*x = validmode[nearest].xdim;
*y = validmode[nearest].ydim;
return nearest; // JBF 20031206: Returns the mode number
}
//
// setvideomode() -- set the video mode
//
int setvideomode(int x, int y, int c, int fs)
{
char i,inp[NUM_INPUTS];
int modenum;
if ((fs == fullscreen) && (x == xres) && (y == yres) && (c == bpp) &&
!videomodereset)
{
OSD_ResizeDisplay(xres,yres);
return 0;
}
modenum = checkvideomode(&x,&y,c,fs,0);
if (modenum < 0) return -1;
if (modenum == 0x7fffffff)
{
customxdim = x;
customydim = y;
custombpp = c;
customfs = fs;
}
for (i=0;i<NUM_INPUTS;i++) inp[i] = devacquired[i];
AcquireInputDevices(0,-1);
if (hWindow && gammabrightness)
{
setgammaramp(sysgamma);
gammabrightness = 0;
}
initprintf("Setting video mode %dx%d (%d-bit %s)\n",
x,y,c, ((fs&1) ? "fullscreen" : "windowed"));
if (CreateAppWindow(modenum)) return -1;
if (!gammabrightness)
{
float f = 1.0 + ((float)curbrightness / 10.0);
if (getgammaramp(sysgamma) >= 0) gammabrightness = 1;
if (gammabrightness && setgamma(f,f,f) < 0) gammabrightness = 0;
}
for (i=0;i<NUM_INPUTS;i++) if (inp[i]) AcquireInputDevices(1,i);
modechange=1;
videomodereset = 0;
//baselayer_onvideomodechange(c>8);
return 0;
}
//
// getvalidmodes() -- figure out what video modes are available
//
#define ADDMODE(x,y,c,f,n) if (validmodecnt<MAXVALIDMODES) { \
validmode[validmodecnt].xdim=x; \
validmode[validmodecnt].ydim=y; \
validmode[validmodecnt].bpp=c; \
validmode[validmodecnt].fs=f; \
validmode[validmodecnt].extra=n; \
validmodecnt++; \
initprintf(" - %dx%d %d-bit %s\n", x, y, c, (f&1)?"fullscreen":"windowed"); \
}
#define CHECK(w,h) if ((w < maxx) && (h < maxy))
#if defined(USE_OPENGL) && defined(POLYMOST)
static void cdsenummodes(void)
{
DEVMODE dm;
int i = 0, j = 0;
struct { unsigned x,y,bpp,freq; } modes[MAXVALIDMODES];
int nmodes=0;
unsigned maxx = MAXXDIM, maxy = MAXYDIM;
ZeroMemory(&dm,sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
while (EnumDisplaySettings(NULL, j, &dm))
{
if (dm.dmBitsPerPel > 8)
{
for (i=0;i<nmodes;i++)
{
if (modes[i].x == dm.dmPelsWidth
&& modes[i].y == dm.dmPelsHeight
&& modes[i].bpp == dm.dmBitsPerPel)
break;
}
if ((i==nmodes) ||
(dm.dmDisplayFrequency <= maxrefreshfreq && dm.dmDisplayFrequency > modes[i].freq && maxrefreshfreq > 0) ||
(dm.dmDisplayFrequency > modes[i].freq && maxrefreshfreq == 0))
{
if (i==nmodes) nmodes++;
modes[i].x = dm.dmPelsWidth;
modes[i].y = dm.dmPelsHeight;
modes[i].bpp = dm.dmBitsPerPel;
modes[i].freq = dm.dmDisplayFrequency;
}
}
j++;
ZeroMemory(&dm,sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
}
for (i=0;i<nmodes;i++)
{
CHECK(modes[i].x, modes[i].y)
ADDMODE(modes[i].x, modes[i].y, modes[i].bpp, 1, modes[i].freq);
}
}
#endif
// mode enumerator
static HRESULT WINAPI getvalidmodes_enum(DDSURFACEDESC *ddsd, VOID *udata)
{
unsigned maxx = MAXXDIM, maxy = MAXYDIM;
UNREFERENCED_PARAMETER(udata);
if (ddsd->ddpfPixelFormat.dwRGBBitCount == 8)
{
CHECK(ddsd->dwWidth, ddsd->dwHeight)
ADDMODE(ddsd->dwWidth, ddsd->dwHeight, ddsd->ddpfPixelFormat.dwRGBBitCount, 1,-1);
}
return(DDENUMRET_OK);
}
static int sortmodes(const struct validmode_t *a, const struct validmode_t *b)
{
int x;
if ((x = a->fs - b->fs) != 0) return x;
if ((x = a->bpp - b->bpp) != 0) return x;
if ((x = a->xdim - b->xdim) != 0) return x;
if ((x = a->ydim - b->ydim) != 0) return x;
return 0;
}
void getvalidmodes(void)
{
static int defaultres[][2] =
{
{1280,1024},{1280,960},{1152,864},{1024,768},{800,600},{640,480},
{640,400},{512,384},{480,360},{400,300},{320,240},{320,200},{0,0}
};
int cdepths[2] = { 8, 0 };
int i, j, maxx=0, maxy=0;
HRESULT result;
#if defined(USE_OPENGL) && defined(POLYMOST)
if (desktopbpp > 8) cdepths[1] = desktopbpp;
#endif
if (modeschecked) return;
validmodecnt=0;
initprintf("Detecting video modes:\n");
if (bDDrawInited)
{
// if DirectDraw initialization didn't fail enumerate fullscreen modes
result = IDirectDraw_EnumDisplayModes(lpDD, 0, NULL, 0, getvalidmodes_enum);
if (result != DD_OK)
{
initprintf("Unable to enumerate fullscreen modes. Using default list.\n");
for (j=0; j < 2; j++)
{
if (cdepths[j] == 0) continue;
for (i=0; defaultres[i][0]; i++)
ADDMODE(defaultres[i][0],defaultres[i][1],cdepths[j],1,-1)
}
}
}
#if defined(USE_OPENGL) && defined(POLYMOST)
cdsenummodes();
#endif
// windowed modes cant be bigger than the current desktop resolution
maxx = desktopxdim-1;
maxy = desktopydim-1;
// add windowed modes next
for (j=0; j < 2; j++)
{
if (cdepths[j] == 0) continue;
for (i=0; defaultres[i][0]; i++)
CHECK(defaultres[i][0],defaultres[i][1])
ADDMODE(defaultres[i][0],defaultres[i][1],cdepths[j],0,-1)
}
qsort((void*)validmode, validmodecnt, sizeof(struct validmode_t), (int(*)(const void*,const void*))sortmodes);
modeschecked=1;
}
#undef CHECK
#undef ADDMODE
//
// resetvideomode() -- resets the video system
//
void resetvideomode(void)
{
videomodereset = 1;
modeschecked = 0;
}
//
// begindrawing() -- locks the framebuffer for drawing
//
void begindrawing(void)
{
int i,j;
if (bpp > 8)
{
if (offscreenrendering) return;
frameplace = 0;
bytesperline = 0;
imageSize = 0;
modechange = 0;
return;
}
if (lockcount++ > 0)
return; // already locked
if (offscreenrendering) return;
if (!fullscreen)
{
frameplace = (intptr_t)lpPixels;
}
else
{
frameplace = (intptr_t)lpOffscreen;
}
if (!modechange) return;
if (!fullscreen)
{
bytesperline = xres|4;
}
else
{
bytesperline = xres|1;
}
imageSize = bytesperline*yres;
setvlinebpl(bytesperline);
j = 0;
for (i=0;i<=ydim;i++) ylookup[i] = j, j += bytesperline;
modechange=0;
}
//
// enddrawing() -- unlocks the framebuffer
//
void enddrawing(void)
{
if (bpp > 8)
{
if (!offscreenrendering) frameplace = 0;
return;
}
if (!frameplace) return;
if (lockcount > 1) { lockcount--; return; }
if (!offscreenrendering) frameplace = 0;
lockcount = 0;
}
//
// showframe() -- update the display
//
void showframe(int w)
{
HRESULT result;
DDSURFACEDESC ddsd;
char *p,*q;
int i,j;
#if defined(USE_OPENGL) && defined(POLYMOST)
if (bpp > 8)
{
if (palfadedelta)
{
bglMatrixMode(GL_PROJECTION);
bglPushMatrix();
bglLoadIdentity();
bglMatrixMode(GL_MODELVIEW);
bglPushMatrix();
bglLoadIdentity();
bglDisable(GL_DEPTH_TEST);
bglDisable(GL_ALPHA_TEST);
bglDisable(GL_TEXTURE_2D);
bglEnable(GL_BLEND);
bglColor4ub(palfadergb.r, palfadergb.g, palfadergb.b, palfadedelta);
bglBegin(GL_QUADS);
bglVertex2i(-1, -1);
bglVertex2i(1, -1);
bglVertex2i(1, 1);
bglVertex2i(-1, 1);
bglEnd();
bglMatrixMode(GL_MODELVIEW);
bglPopMatrix();
bglMatrixMode(GL_PROJECTION);
bglPopMatrix();
}
bwglSwapBuffers(hDC);
return;
}
#endif
w = 1; // wait regardless. ken thinks it's better to do so.
if (offscreenrendering) return;
if (lockcount)
{
initprintf("Frame still locked %d times when showframe() called.\n", lockcount);
while (lockcount) enddrawing();
}
if (!fullscreen)
{
BitBlt(hDC, 0, 0, xres, yres, hDCSection, 0, 0, SRCCOPY);
}
else
{
if (!w)
{
if ((result = IDirectDrawSurface_GetBltStatus(lpDDSBack, DDGBS_CANBLT)) == DDERR_WASSTILLDRAWING)
return;
if ((result = IDirectDrawSurface_GetFlipStatus(lpDDSPrimary, DDGFS_CANFLIP)) == DDERR_WASSTILLDRAWING)
return;
}
// lock the backbuffer surface
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
result = IDirectDrawSurface_Lock(lpDDSBack, NULL, &ddsd, DDLOCK_SURFACEMEMORYPTR | DDLOCK_NOSYSLOCK | DDLOCK_WAIT, NULL);
if (result == DDERR_SURFACELOST)
{
if (!appactive)
return; // not in a position to restore display anyway
IDirectDrawSurface_Restore(lpDDSPrimary);
result = IDirectDrawSurface_Lock(lpDDSBack, NULL, &ddsd, DDLOCK_SURFACEMEMORYPTR | DDLOCK_NOSYSLOCK | DDLOCK_WAIT, NULL);
}
if (result != DD_OK)
{
if (result != DDERR_WASSTILLDRAWING)
initprintf("Failed locking back-buffer surface: %s\n", GetDDrawError(result));
return;
}
// copy each scanline
p = (char *)ddsd.lpSurface;
q = (char *)lpOffscreen;
j = xres >> 2;
for (i=0; i<yres; i++, p+=ddsd.lPitch, q+=bytesperline)
copybuf(q,p,j);
// unlock the backbuffer surface
result = IDirectDrawSurface_Unlock(lpDDSBack, NULL);
if (result != DD_OK)
{
initprintf("Failed unlocking back-buffer surface: %s\n", GetDDrawError(result));
return;
}
// flip the chain
result = IDirectDrawSurface_Flip(lpDDSPrimary, NULL, w?DDFLIP_WAIT:0);
if (result == DDERR_SURFACELOST)
{
if (!appactive)
return; // not in a position to restore display anyway
IDirectDrawSurface_Restore(lpDDSPrimary);
result = IDirectDrawSurface_Flip(lpDDSPrimary, NULL, w?DDFLIP_WAIT:0);
}
if (result != DD_OK)
{
if (result != DDERR_WASSTILLDRAWING)
initprintf("IDirectDrawSurface_Flip(): %s\n", GetDDrawError(result));
}
}
}
//
// setpalette() -- set palette values
// New behaviour: curpalettefaded is the live palette, and any changes this function
// makes are done to it and not the base palette.
//
int setpalette(int start, int num, char *dapal)
{
int i, n;
HRESULT result;
RGBQUAD *rgb;
//HPALETTE hPalPrev;
struct logpal
{
WORD palVersion;
WORD palNumEntries;
PALETTEENTRY palPalEntry[256];
} lpal;
UNREFERENCED_PARAMETER(dapal);
copybuf(curpalettefaded, lpal.palPalEntry, 256);
for (i=start, n=num; n>0; i++, n--)
{
/*
lpal.palPalEntry[i].peBlue = dapal[0] << 2;
lpal.palPalEntry[i].peGreen = dapal[1] << 2;
lpal.palPalEntry[i].peRed = dapal[2] << 2;
*/
curpalettefaded[i].f = lpal.palPalEntry[i].peFlags = PC_RESERVED | PC_NOCOLLAPSE;
//dapal += 4;
}
if (bpp > 8) return 0; // no palette in opengl
if (!fullscreen)
{
if (num > 0)
{
rgb = (RGBQUAD *)Bmalloc(sizeof(RGBQUAD)*num);
for (i=start, n=0; n<num; i++, n++)
{
rgb[n].rgbBlue = lpal.palPalEntry[i].peBlue;
rgb[n].rgbGreen = lpal.palPalEntry[i].peGreen;
rgb[n].rgbRed = lpal.palPalEntry[i].peRed;
rgb[n].rgbReserved = 0;
}
SetDIBColorTable(hDCSection, start, num, rgb);
free(rgb);
}
if (desktopbpp > 8) return 0; // only if an 8bit desktop do we do what follows
// set 0 and 255 to black and white
lpal.palVersion = 0x300;
lpal.palNumEntries = 256;
lpal.palPalEntry[0].peBlue = 0;
lpal.palPalEntry[0].peGreen = 0;
lpal.palPalEntry[0].peRed = 0;
lpal.palPalEntry[0].peFlags = 0;
lpal.palPalEntry[255].peBlue = 255;
lpal.palPalEntry[255].peGreen = 255;
lpal.palPalEntry[255].peRed = 255;
lpal.palPalEntry[255].peFlags = 0;
if (SetSystemPaletteUse(hDC, SYSPAL_NOSTATIC) == SYSPAL_ERROR)
{
initprintf("Problem setting system palette use.\n");
return -1;
}
if (hPalette)
{
if (num == 0) { start = 0; num = 256; } // refreshing the palette only
SetPaletteEntries(hPalette, start, num, lpal.palPalEntry+start);
}
else
{
hPalette = CreatePalette((LOGPALETTE *)lpal.palPalEntry);
if (!hPalette)
{
initprintf("Problem creating palette.\n");
return -1;
}
}
if (SelectPalette(hDC, hPalette, FALSE) == NULL)
{
initprintf("Problem selecting palette.\n");
return -1;
}
if (RealizePalette(hDC) == GDI_ERROR)
{
initprintf("Failure realizing palette.\n");
return -1;
}
SetBWSystemColours();
}
else
{
if (!lpDDPalette) return -1;
result = IDirectDrawPalette_SetEntries(lpDDPalette, 0, start, num, (PALETTEENTRY*)&lpal.palPalEntry[start]);
if (result != DD_OK)
{
initprintf("Palette set failed: %s\n", GetDDrawError(result));
return -1;
}
}
return 0;
}
//
// getpalette() -- get palette values
//
/*
int getpalette(int start, int num, char *dapal)
{
int i;
for (i=num; i>0; i--, start++) {
dapal[0] = curpalette[start].b >> 2;
dapal[1] = curpalette[start].g >> 2;
dapal[2] = curpalette[start].r >> 2;
dapal += 4;
}
return 0;
}*/
//
// setgamma
//
static int setgammaramp(WORD gt[3][256])
{
if (!fullscreen || bpp > 8)
{
// GL and windowed mode use DIB method
int i;
HDC hDC = GetDC(hWindow);
i = SetDeviceGammaRamp(hDC, gt) ? 0 : -1;
ReleaseDC(hWindow, hDC);
return i;
}
else
{
// fullscreen uses DirectX
LPDIRECTDRAWGAMMACONTROL gam;
HRESULT hr;
if (!(DDdwCaps2 & DDCAPS2_PRIMARYGAMMA)) return -1;
hr = IDirectDrawSurface_QueryInterface(lpDDSPrimary, &IID_IDirectDrawGammaControl, (LPVOID)&gam);
if (hr != DD_OK)
{
ShowDDrawErrorBox("Error querying gamma control", hr);
return -1;
}
hr = IDirectDrawGammaControl_SetGammaRamp(gam, 0, (LPDDGAMMARAMP)gt);
if (hr != DD_OK)
{
IDirectDrawGammaControl_Release(gam);
ShowDDrawErrorBox("Error setting gamma ramp", hr);
return -1;
}
IDirectDrawGammaControl_Release(gam);
return 0;
}
}
int setgamma(float ro, float go, float bo)
{
int i;
WORD gt[3][256];
if (!hWindow) return -1;
ro = 1.0 / ro; go = 1.0 / go; bo = 1.0 / bo;
for (i=0;i<256;i++)
{
gt[0][i] = (WORD)min(65535, max(0, (int)(pow((double)i / 256.0, ro) * 65535.0 + 0.5)));
gt[1][i] = (WORD)min(65535, max(0, (int)(pow((double)i / 256.0, go) * 65535.0 + 0.5)));
gt[2][i] = (WORD)min(65535, max(0, (int)(pow((double)i / 256.0, go) * 65535.0 + 0.5)));
}
return setgammaramp(gt);
}
static int getgammaramp(WORD gt[3][256])
{
if (!hWindow) return -1;
if (!fullscreen || bpp > 8)
{
int i;
HDC hDC = GetDC(hWindow);
i = GetDeviceGammaRamp(hDC, gt) ? 0 : -1;
ReleaseDC(hWindow, hDC);
return i;
}
else
{
LPDIRECTDRAWGAMMACONTROL gam;
HRESULT hr;
if (!(DDdwCaps2 & DDCAPS2_PRIMARYGAMMA)) return -1;
hr = IDirectDrawSurface_QueryInterface(lpDDSPrimary, &IID_IDirectDrawGammaControl, (LPVOID)&gam);
if (hr != DD_OK)
{
ShowDDrawErrorBox("Error querying gamma control", hr);
return -1;
}
hr = IDirectDrawGammaControl_GetGammaRamp(gam, 0, (LPDDGAMMARAMP)gt);
if (hr != DD_OK)
{
IDirectDrawGammaControl_Release(gam);
ShowDDrawErrorBox("Error getting gamma ramp", hr);
return -1;
}
IDirectDrawGammaControl_Release(gam);
return 0;
}
}
//
// InitDirectDraw() -- get DirectDraw started
//
// device enumerator
static BOOL WINAPI InitDirectDraw_enum(GUID *lpGUID, LPSTR lpDesc, LPSTR lpName, LPVOID lpContext)
{
UNREFERENCED_PARAMETER(lpGUID);
UNREFERENCED_PARAMETER(lpName);
UNREFERENCED_PARAMETER(lpContext);
initprintf(" * %s\n", lpDesc);
return 1;
}
static BOOL InitDirectDraw(void)
{
HRESULT result;
HRESULT(WINAPI *aDirectDrawCreate)(GUID *, LPDIRECTDRAW *, IUnknown *);
HRESULT(WINAPI *aDirectDrawEnumerate)(LPDDENUMCALLBACK, LPVOID);
DDCAPS ddcaps;
if (bDDrawInited) return FALSE;
initprintf("Initializing DirectDraw...\n");
// load up the DirectDraw DLL
if (!hDDrawDLL)
{
initprintf(" - Loading DDRAW.DLL\n");
hDDrawDLL = LoadLibrary("DDRAW.DLL");
if (!hDDrawDLL)
{
ShowErrorBox("Error loading DDRAW.DLL");
return TRUE;
}
}
// get the pointer to DirectDrawEnumerate
aDirectDrawEnumerate = (void *)GetProcAddress(hDDrawDLL, "DirectDrawEnumerateA");
if (!aDirectDrawEnumerate)
{
ShowErrorBox("Error fetching DirectDrawEnumerate()");
UninitDirectDraw();
return TRUE;
}
// enumerate the devices to make us look fancy
initprintf(" - Enumerating display devices\n");
aDirectDrawEnumerate(InitDirectDraw_enum, NULL);
// get the pointer to DirectDrawCreate
aDirectDrawCreate = (void *)GetProcAddress(hDDrawDLL, "DirectDrawCreate");
if (!aDirectDrawCreate)
{
ShowErrorBox("Error fetching DirectDrawCreate()");
UninitDirectDraw();
return TRUE;
}
// create a new DirectDraw object
initprintf(" - Creating DirectDraw object\n");
result = aDirectDrawCreate(NULL, &lpDD, NULL);
if (result != DD_OK)
{
ShowDDrawErrorBox("DirectDrawCreate() failed", result);
UninitDirectDraw();
return TRUE;
}
// fetch capabilities
initprintf(" - Checking capabilities\n");
ddcaps.dwSize = sizeof(DDCAPS);
result = IDirectDraw_GetCaps(lpDD, &ddcaps, NULL);
if (result != DD_OK)
{
initprintf(" Unable to get capabilities.\n");
}
else
{
DDdwCaps = ddcaps.dwCaps;
DDdwCaps2 = ddcaps.dwCaps2;
}
bDDrawInited = TRUE;
return FALSE;
}
//
// UninitDirectDraw() -- clean up DirectDraw
//
static void UninitDirectDraw(void)
{
if (bDDrawInited) initprintf("Uninitializing DirectDraw...\n");
ReleaseDirectDrawSurfaces();
RestoreDirectDrawMode();
if (lpDD)
{
initprintf(" - Releasing DirectDraw object\n");
IDirectDraw_Release(lpDD);
lpDD = NULL;
}
if (hDDrawDLL)
{
initprintf(" - Unloading DDRAW.DLL\n");
FreeLibrary(hDDrawDLL);
hDDrawDLL = NULL;
}
bDDrawInited = FALSE;
}
//
// RestoreDirectDrawMode() -- resets the screen mode
//
static int RestoreDirectDrawMode(void)
{
HRESULT result;
if (fullscreen == 0 || /*bpp > 8 ||*/ !bDDrawInited) return FALSE;
if (modesetusing == 1) ChangeDisplaySettings(NULL,0);
else if (modesetusing == 0)
{
// restore previous display mode and set to normal cooperative level
result = IDirectDraw_RestoreDisplayMode(lpDD);
if (result != DD_OK)
{
ShowDDrawErrorBox("Error restoring display mode", result);
UninitDirectDraw();
return TRUE;
}
result = IDirectDraw_SetCooperativeLevel(lpDD, hWindow, DDSCL_NORMAL);
if (result != DD_OK)
{
ShowDDrawErrorBox("Error setting cooperative level", result);
UninitDirectDraw();
return TRUE;
}
}
modesetusing = -1;
return FALSE;
}
//
// ReleaseDirectDrawSurfaces() -- release the front and back buffers
//
static void ReleaseDirectDrawSurfaces(void)
{
if (lpDDPalette)
{
initprintf(" - Releasing palette\n");
IDirectDrawPalette_Release(lpDDPalette);
lpDDPalette = NULL;
}
if (lpDDSBack)
{
initprintf(" - Releasing back-buffer surface\n");
IDirectDrawSurface_Release(lpDDSBack);
lpDDSBack = NULL;
}
if (lpDDSPrimary)
{
initprintf(" - Releasing primary surface\n");
IDirectDrawSurface_Release(lpDDSPrimary);
lpDDSPrimary = NULL;
}
if (lpOffscreen)
{
initprintf(" - Freeing offscreen buffer\n");
free(lpOffscreen);
lpOffscreen = NULL;
}
}
//
// SetupDirectDraw() -- sets up DirectDraw rendering
//
static int SetupDirectDraw(int width, int height)
{
HRESULT result;
DDSURFACEDESC ddsd;
// now create the DirectDraw surfaces
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP | DDSCAPS_COMPLEX;
ddsd.dwBackBufferCount = 2; // triple-buffer
initprintf(" - Creating primary surface\n");
result = IDirectDraw_CreateSurface(lpDD, &ddsd, &lpDDSPrimary, NULL);
if (result != DD_OK)
{
ShowDDrawErrorBox("Failure creating primary surface", result);
UninitDirectDraw();
return TRUE;
}
ZeroMemory(&ddsd.ddsCaps, sizeof(ddsd.ddsCaps));
ddsd.ddsCaps.dwCaps = DDSCAPS_BACKBUFFER;
numpages = 1; // KJS 20031225
initprintf(" - Getting back buffer\n");
result = IDirectDrawSurface_GetAttachedSurface(lpDDSPrimary, &ddsd.ddsCaps, &lpDDSBack);
if (result != DD_OK)
{
ShowDDrawErrorBox("Failure fetching back-buffer surface", result);
UninitDirectDraw();
return TRUE;
}
initprintf(" - Allocating offscreen buffer\n");
lpOffscreen = (char *)malloc((width|1)*height);
if (!lpOffscreen)
{
ShowErrorBox("Failure allocating offscreen buffer");
UninitDirectDraw();
return TRUE;
}
// attach a palette to the primary surface
initprintf(" - Creating palette\n");
result = IDirectDraw_CreatePalette(lpDD, DDPCAPS_8BIT | DDPCAPS_ALLOW256, (PALETTEENTRY*)curpalette, &lpDDPalette, NULL);
if (result != DD_OK)
{
ShowDDrawErrorBox("Failure creating palette", result);
UninitDirectDraw();
return TRUE;
}
result = IDirectDrawSurface_SetPalette(lpDDSPrimary, lpDDPalette);
if (result != DD_OK)
{
ShowDDrawErrorBox("Failure setting palette", result);
UninitDirectDraw();
return TRUE;
}
return FALSE;
}
//
// UninitDIB() -- clean up the DIB renderer
//
static void UninitDIB(void)
{
if (desktopbpp <= 8)
RestoreSystemColours();
if (hPalette)
{
DeleteObject(hPalette);
hPalette = NULL;
}
if (hDCSection)
{
DeleteDC(hDCSection);
hDCSection = NULL;
}
if (hDIBSection)
{
DeleteObject(hDIBSection);
hDIBSection = NULL;
}
if (hDC)
{
ReleaseDC(hWindow, hDC);
hDC = NULL;
}
}
//
// SetupDIB() -- sets up DIB rendering
//
static int SetupDIB(int width, int height)
{
struct binfo
{
BITMAPINFOHEADER header;
RGBQUAD colours[256];
} dibsect;
int i;
if (!hDC)
{
hDC = GetDC(hWindow);
if (!hDC)
{
ShowErrorBox("Error getting device context");
return TRUE;
}
}
if (hDCSection)
{
DeleteDC(hDCSection);
hDCSection = NULL;
}
// destroy the previous DIB section if it existed
if (hDIBSection)
{
DeleteObject(hDIBSection);
hDIBSection = NULL;
}
// create the new DIB section
memset(&dibsect, 0, sizeof(dibsect));
numpages = 1; // KJS 20031225
dibsect.header.biSize = sizeof(dibsect.header);
dibsect.header.biWidth = width|1; // Ken did this
dibsect.header.biHeight = -height;
dibsect.header.biPlanes = 1;
dibsect.header.biBitCount = 8;
dibsect.header.biCompression = BI_RGB;
dibsect.header.biClrUsed = 256;
dibsect.header.biClrImportant = 256;
for (i=0; i<256; i++)
{
dibsect.colours[i].rgbBlue = curpalette[i].b;
dibsect.colours[i].rgbGreen = curpalette[i].g;
dibsect.colours[i].rgbRed = curpalette[i].r;
}
hDIBSection = CreateDIBSection(hDC, (BITMAPINFO *)&dibsect, DIB_RGB_COLORS, &lpPixels, NULL, 0);
if (!hDIBSection)
{
ReleaseDC(hWindow, hDC);
hDC = NULL;
ShowErrorBox("Error creating DIB section");
return TRUE;
}
memset(lpPixels, 0, width*height);
// create a compatible memory DC
hDCSection = CreateCompatibleDC(hDC);
if (!hDCSection)
{
ReleaseDC(hWindow, hDC);
hDC = NULL;
ShowErrorBox("Error creating compatible DC");
return TRUE;
}
// select the DIB section into the memory DC
if (!SelectObject(hDCSection, hDIBSection))
{
ReleaseDC(hWindow, hDC);
hDC = NULL;
DeleteDC(hDCSection);
hDCSection = NULL;
ShowErrorBox("Error creating compatible DC");
return TRUE;
}
return FALSE;
}
#if defined(USE_OPENGL) && defined(POLYMOST)
//
// ReleaseOpenGL() -- cleans up OpenGL rendering stuff
//
static HWND hGLWindow = NULL;
static void ReleaseOpenGL(void)
{
if (hGLRC)
{
polymost_glreset();
if (!bwglMakeCurrent(0,0)) { }
if (!bwglDeleteContext(hGLRC)) { }
hGLRC = NULL;
}
if (hGLWindow)
{
if (hDC)
{
ReleaseDC(hGLWindow, hDC);
hDC = NULL;
}
DestroyWindow(hGLWindow);
hGLWindow = NULL;
}
}
//
// UninitOpenGL() -- unitializes any openGL libraries
//
static void UninitOpenGL(void)
{
ReleaseOpenGL();
}
//
// SetupOpenGL() -- sets up opengl rendering
//
static int SetupOpenGL(int width, int height, int bitspp)
{
PIXELFORMATDESCRIPTOR pfd =
{
sizeof(PIXELFORMATDESCRIPTOR),
1, //Version Number
PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER, //Must Support these
PFD_TYPE_RGBA, //Request An RGBA Format
0, //Select Our Color Depth
0,0,0,0,0,0, //Color Bits Ignored
0, //No Alpha Buffer
0, //Shift Bit Ignored
0, //No Accumulation Buffer
0,0,0,0, //Accumulation Bits Ignored
32, //16/24/32 Z-Buffer depth
1, //No Stencil Buffer
0, //No Auxiliary Buffer
PFD_MAIN_PLANE, //Main Drawing Layer
0, //Reserved
0,0,0 //Layer Masks Ignored
};
GLuint PixelFormat;
int minidriver;
int err;
static int warnonce = 0;
pfd.cColorBits = bitspp;
hGLWindow = CreateWindow(
WindowClass,
"OpenGL Window",
WS_CHILD|WS_VISIBLE,
0,0,
width,height,
hWindow,
(HMENU)0,
hInstance,
NULL);
if (!hGLWindow)
{
ShowErrorBox("Error creating OpenGL child window.");
return TRUE;
}
hDC = GetDC(hGLWindow);
if (!hDC)
{
ReleaseOpenGL();
ShowErrorBox("Error getting device context");
return TRUE;
}
minidriver = Bstrcasecmp(gldriver,"opengl32.dll");
if (minidriver) PixelFormat = bwglChoosePixelFormat(hDC,&pfd);
else PixelFormat = ChoosePixelFormat(hDC,&pfd);
if (!PixelFormat)
{
ReleaseOpenGL();
ShowErrorBox("Can't choose pixel format");
return TRUE;
}
if (minidriver) err = bwglSetPixelFormat(hDC, PixelFormat, &pfd);
else err = SetPixelFormat(hDC, PixelFormat, &pfd);
if (!err)
{
ReleaseOpenGL();
ShowErrorBox("Can't set pixel format");
return TRUE;
}
hGLRC = bwglCreateContext(hDC);
if (!hGLRC)
{
ReleaseOpenGL();
ShowErrorBox("Can't create GL RC");
return TRUE;
}
if (!bwglMakeCurrent(hDC, hGLRC))
{
ReleaseOpenGL();
ShowErrorBox("Can't activate GL RC");
return TRUE;
}
polymost_glreset();
bglEnable(GL_TEXTURE_2D);
bglShadeModel(GL_SMOOTH); //GL_FLAT
bglClearColor(0,0,0,0.5); //Black Background
bglHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST); //Use FASTEST for ortho!
bglHint(GL_LINE_SMOOTH_HINT,GL_NICEST);
bglHint(GL_TEXTURE_COMPRESSION_HINT, GL_NICEST);
bglDisable(GL_DITHER);
{
GLubyte *p,*p2,*p3;
glinfo.vendor = (char *)bglGetString(GL_VENDOR);
glinfo.renderer = (char *)bglGetString(GL_RENDERER);
glinfo.version = (char *)bglGetString(GL_VERSION);
glinfo.extensions = (char *)bglGetString(GL_EXTENSIONS);
glinfo.maxanisotropy = 1.0;
glinfo.bgra = 0;
glinfo.texcompr = 0;
// process the extensions string and flag stuff we recognize
p = (unsigned char *)Bstrdup(glinfo.extensions);
p3 = p;
while ((p2 = (unsigned char *)Bstrtoken(p3==p?(char *)p:NULL, " ", (char**)&p3, 1)) != NULL)
{
if (!Bstrcmp((char *)p2, "GL_EXT_texture_filter_anisotropic"))
{
// supports anisotropy. get the maximum anisotropy level
bglGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &glinfo.maxanisotropy);
}
else if (!Bstrcmp((char *)p2, "GL_EXT_texture_edge_clamp") ||
!Bstrcmp((char *)p2, "GL_SGIS_texture_edge_clamp"))
{
// supports GL_CLAMP_TO_EDGE or GL_CLAMP_TO_EDGE_SGIS
glinfo.clamptoedge = 1;
}
else if (!Bstrcmp((char *)p2, "GL_EXT_bgra"))
{
// support bgra textures
glinfo.bgra = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_texture_compression"))
{
// support texture compression
glinfo.texcompr = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_texture_non_power_of_two"))
{
// support non-power-of-two texture sizes
glinfo.texnpot = 1;
}
else if (!Bstrcmp((char *)p2, "WGL_3DFX_gamma_control"))
{
// 3dfx cards have issues with fog
nofog = 1;
if (!(warnonce&1)) initprintf("3dfx card detected: OpenGL fog disabled\n");
warnonce |= 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_fragment_program"))
{
glinfo.arbfp = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_depth_texture"))
{
glinfo.depthtex = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_shadow"))
{
glinfo.shadow = 1;
}
else if (!Bstrcmp((char *)p2, "GL_EXT_framebuffer_object"))
{
glinfo.fbos = 1;
}
else if (!Bstrcmp((char *)p2, "GL_NV_texture_rectangle") ||
!Bstrcmp((char *)p2, "GL_EXT_texture_rectangle"))
{
glinfo.rect = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_multitexture"))
{
glinfo.multitex = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_texture_env_combine"))
{
glinfo.envcombine = 1;
}
else if (!Bstrcmp((char *)p2, "GL_ARB_vertex_buffer_object"))
{
glinfo.vbos = 1;
}
}
Bfree(p);
}
numpages = 2; // KJS 20031225: tell rotatesprite that it's double buffered!
if (!glinfo.dumped)
{
int oldbpp = bpp;
bpp = 32;
osdcmd_glinfo(NULL);
glinfo.dumped = TRUE;
bpp = oldbpp;
}
return FALSE;
}
#endif
//
// CreateAppWindow() -- create the application window
//
static BOOL CreateAppWindow(int modenum)
{
RECT rect;
int w, h, x, y, stylebits = 0, stylebitsex = 0;
int width, height, fs, bitspp;
HRESULT result;
if (modenum == 0x7fffffff)
{
width = customxdim;
height = customydim;
fs = customfs;
bitspp = custombpp;
}
else
{
width = validmode[modenum].xdim;
height = validmode[modenum].ydim;
fs = validmode[modenum].fs;
bitspp = validmode[modenum].bpp;
}
if (width == xres && height == yres && fs == fullscreen && bitspp == bpp && !videomodereset) return FALSE;
if (hWindow)
{
if (bpp > 8)
{
#if defined(USE_OPENGL) && defined(POLYMOST)
ReleaseOpenGL(); // release opengl
#endif
}
else
{
ReleaseDirectDrawSurfaces(); // releases directdraw surfaces
}
if (!fs && fullscreen)
{
// restore previous display mode and set to normal cooperative level
RestoreDirectDrawMode();
#if defined(USE_OPENGL) && defined(POLYMOST)
}
else if (fs && fullscreen)
{
// using CDS for GL modes, so restore from DirectDraw
if (bpp != bitspp) RestoreDirectDrawMode();
#endif
}
ShowWindow(hWindow, SW_HIDE); // so Windows redraws what's behind if the window shrinks
}
if (fs)
{
stylebitsex = WS_EX_TOPMOST;
stylebits = WS_POPUP;
}
else
{
stylebitsex = 0;
stylebits = WINDOW_STYLE;
}
if (!hWindow)
{
hWindow = CreateWindowEx(
stylebitsex,
"buildapp",
apptitle,
stylebits,
CW_USEDEFAULT,
CW_USEDEFAULT,
320,
200,
NULL,
NULL,
hInstance,
0);
if (!hWindow)
{
ShowErrorBox("Unable to create window");
return TRUE;
}
startwin_close();
}
else
{
SetWindowLong(hWindow,GWL_EXSTYLE,stylebitsex);
SetWindowLong(hWindow,GWL_STYLE,stylebits);
}
// resize the window
if (!fs)
{
rect.left = 0;
rect.top = 0;
rect.right = width-1;
rect.bottom = height-1;
AdjustWindowRect(&rect, stylebits, FALSE);
w = (rect.right - rect.left);
h = (rect.bottom - rect.top);
x = (desktopxdim - w) / 2;
y = (desktopydim - h) / 2;
}
else
{
x=y=0;
w=width;
h=height;
}
if (windowx == -1)
windowx = x;
if (windowy == -1)
windowy = y;
SetWindowText(hWindow, apptitle);
ShowWindow(hWindow, SW_SHOWNORMAL);
SetForegroundWindow(hWindow);
SetFocus(hWindow);
SetWindowPos(hWindow, HWND_TOP, windowpos?windowx:x, windowpos?windowy:y, w, h, 0);
// fullscreen?
if (!fs)
{
if (bitspp > 8)
{
#if defined(USE_OPENGL) && defined(POLYMOST)
// yes, start up opengl
if (SetupOpenGL(width,height,bitspp))
{
return TRUE;
}
#endif
}
else
{
// no, use DIB section
if (SetupDIB(width,height))
{
return TRUE;
}
}
modesetusing = -1;
}
else
{
// yes, set up DirectDraw
// clean up after the DIB renderer if it was being used
UninitDIB();
if (!bDDrawInited)
{
DestroyWindow(hWindow);
hWindow = NULL;
return TRUE;
}
#if defined(USE_OPENGL) && defined(POLYMOST)
if (bitspp > 8)
{
DEVMODE dmScreenSettings;
ZeroMemory(&dmScreenSettings, sizeof(DEVMODE));
dmScreenSettings.dmSize = sizeof(DEVMODE);
dmScreenSettings.dmPelsWidth = width;
dmScreenSettings.dmPelsHeight = height;
dmScreenSettings.dmBitsPerPel = bitspp;
dmScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
if (modenum != 0x7fffffff)
{
dmScreenSettings.dmDisplayFrequency = validmode[modenum].extra;
dmScreenSettings.dmFields |= DM_DISPLAYFREQUENCY;
}
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
ShowErrorBox("Video mode not supported");
return TRUE;
}
ShowWindow(hWindow, SW_SHOWNORMAL);
SetForegroundWindow(hWindow);
SetFocus(hWindow);
modesetusing = 1;
}
else
#endif
{
// set exclusive cooperative level
result = IDirectDraw_SetCooperativeLevel(lpDD, hWindow, DDSCL_EXCLUSIVE|DDSCL_FULLSCREEN);
if (result != DD_OK)
{
ShowDDrawErrorBox("Error setting cooperative level", result);
UninitDirectDraw();
return TRUE;
}
result = IDirectDraw_SetDisplayMode(lpDD, width, height, bitspp);
if (result != DD_OK)
{
ShowDDrawErrorBox("Error setting display mode", result);
UninitDirectDraw();
return TRUE;
}
modesetusing = 0;
}
if (bitspp > 8)
{
#if defined(USE_OPENGL) && defined(POLYMOST)
// we want an opengl mode
if (SetupOpenGL(width,height,bitspp))
{
return TRUE;
}
#endif
}
else
{
// we want software
if (SetupDirectDraw(width,height))
{
return TRUE;
}
}
}
#if defined(USE_OPENGL) && defined(POLYMOST)
if (bitspp > 8) loadglextensions();
#endif
xres = width;
yres = height;
bpp = bitspp;
fullscreen = fs;
curvidmode = modenum;
frameplace = 0;
lockcount = 0;
// bytesperline is set when framebuffer is locked
//bytesperline = width;
//imageSize = bytesperline*yres;
modechange = 1;
OSD_ResizeDisplay(xres,yres);
UpdateWindow(hWindow);
return FALSE;
}
//
// DestroyAppWindow() -- destroys the application window
//
static void DestroyAppWindow(void)
{
if (hWindow && gammabrightness)
{
setgammaramp(sysgamma);
gammabrightness = 0;
}
#if defined(USE_OPENGL) && defined(POLYMOST)
UninitOpenGL();
#endif
UninitDirectDraw();
UninitDIB();
if (hWindow)
{
DestroyWindow(hWindow);
hWindow = NULL;
}
}
//
// SaveSystemColours() -- save the Windows-reserved colours
//
static void SaveSystemColours(void)
{
int i;
if (system_colours_saved) return;
for (i=0; i<NUM_SYS_COLOURS; i++)
syscolours[i] = GetSysColor(syscolouridx[i]);
system_colours_saved = 1;
}
//
// SetBWSystemColours() -- set system colours to a black-and-white scheme
//
static void SetBWSystemColours(void)
{
#define WHI RGB(255,255,255)
#define BLA RGB(0,0,0)
static COLORREF syscoloursbw[NUM_SYS_COLOURS] =
{
WHI, BLA, BLA, WHI, WHI, WHI, WHI, BLA, BLA, WHI,
WHI, WHI, WHI, BLA, WHI, WHI, BLA, BLA, BLA, BLA,
BLA, BLA, WHI, BLA, WHI
};
#undef WHI
#undef BLA
if (!system_colours_saved || bw_colours_set) return;
SetSysColors(NUM_SYS_COLOURS, syscolouridx, syscoloursbw);
bw_colours_set = 1;
}
//
// RestoreSystemColours() -- restore the Windows-reserved colours
//
static void RestoreSystemColours(void)
{
if (!system_colours_saved || !bw_colours_set) return;
SetSystemPaletteUse(hDC, SYSPAL_STATIC);
SetSysColors(NUM_SYS_COLOURS, syscolouridx, syscolours);
bw_colours_set = 0;
}
//
// ShowDDrawErrorBox() -- shows an error message box for a DirectDraw error
//
static void ShowDDrawErrorBox(const char *m, HRESULT r)
{
TCHAR msg[1024];
wsprintf(msg, "%s: %s", m, GetDDrawError(r));
MessageBox(0, msg, apptitle, MB_OK|MB_ICONSTOP);
}
//
// GetDDrawError() -- stinking huge list of error messages since MS didn't want to include
// them in the DLL
//
static const char * GetDDrawError(HRESULT code)
{
switch (code)
{
case DD_OK:
return "DD_OK";
case DDERR_ALREADYINITIALIZED:
return "DDERR_ALREADYINITIALIZED";
case DDERR_BLTFASTCANTCLIP:
return "DDERR_BLTFASTCANTCLIP";
case DDERR_CANNOTATTACHSURFACE:
return "DDERR_CANNOTATTACHSURFACE";
case DDERR_CANNOTDETACHSURFACE:
return "DDERR_CANNOTDETACHSURFACE";
case DDERR_CANTCREATEDC:
return "DDERR_CANTCREATEDC";
case DDERR_CANTDUPLICATE:
return "DDERR_CANTDUPLICATE";
case DDERR_CANTLOCKSURFACE:
return "DDERR_CANTLOCKSURFACE";
case DDERR_CANTPAGELOCK:
return "DDERR_CANTPAGELOCK";
case DDERR_CANTPAGEUNLOCK:
return "DDERR_CANTPAGEUNLOCK";
case DDERR_CLIPPERISUSINGHWND:
return "DDERR_CLIPPERISUSINGHWND";
case DDERR_COLORKEYNOTSET:
return "DDERR_COLORKEYNOTSET";
case DDERR_CURRENTLYNOTAVAIL:
return "DDERR_CURRENTLYNOTAVAIL";
case DDERR_DCALREADYCREATED:
return "DDERR_DCALREADYCREATED";
case DDERR_DEVICEDOESNTOWNSURFACE:
return "DDERR_DEVICEDOESNTOWNSURFACE";
case DDERR_DIRECTDRAWALREADYCREATED:
return "DDERR_DIRECTDRAWALREADYCREATED";
case DDERR_EXCEPTION:
return "DDERR_EXCEPTION";
case DDERR_EXCLUSIVEMODEALREADYSET:
return "DDERR_EXCLUSIVEMODEALREADYSET";
case DDERR_EXPIRED:
return "DDERR_EXPIRED";
case DDERR_GENERIC:
return "DDERR_GENERIC";
case DDERR_HEIGHTALIGN:
return "DDERR_HEIGHTALIGN";
case DDERR_HWNDALREADYSET:
return "DDERR_HWNDALREADYSET";
case DDERR_HWNDSUBCLASSED:
return "DDERR_HWNDSUBCLASSED";
case DDERR_IMPLICITLYCREATED:
return "DDERR_IMPLICITLYCREATED";
case DDERR_INCOMPATIBLEPRIMARY:
return "DDERR_INCOMPATIBLEPRIMARY";
case DDERR_INVALIDCAPS:
return "DDERR_INVALIDCAPS";
case DDERR_INVALIDCLIPLIST:
return "DDERR_INVALIDCLIPLIST";
case DDERR_INVALIDDIRECTDRAWGUID:
return "DDERR_INVALIDDIRECTDRAWGUID";
case DDERR_INVALIDMODE:
return "DDERR_INVALIDMODE";
case DDERR_INVALIDOBJECT:
return "DDERR_INVALIDOBJECT";
case DDERR_INVALIDPARAMS:
return "DDERR_INVALIDPARAMS";
case DDERR_INVALIDPIXELFORMAT:
return "DDERR_INVALIDPIXELFORMAT";
case DDERR_INVALIDPOSITION:
return "DDERR_INVALIDPOSITION";
case DDERR_INVALIDRECT:
return "DDERR_INVALIDRECT";
case DDERR_INVALIDSTREAM:
return "DDERR_INVALIDSTREAM";
case DDERR_INVALIDSURFACETYPE:
return "DDERR_INVALIDSURFACETYPE";
case DDERR_LOCKEDSURFACES:
return "DDERR_LOCKEDSURFACES";
case DDERR_MOREDATA:
return "DDERR_MOREDATA";
case DDERR_NO3D:
return "DDERR_NO3D";
case DDERR_NOALPHAHW:
return "DDERR_NOALPHAHW";
case DDERR_NOBLTHW:
return "DDERR_NOBLTHW";
case DDERR_NOCLIPLIST:
return "DDERR_NOCLIPLIST";
case DDERR_NOCLIPPERATTACHED:
return "DDERR_NOCLIPPERATTACHED";
case DDERR_NOCOLORCONVHW:
return "DDERR_NOCOLORCONVHW";
case DDERR_NOCOLORKEY:
return "DDERR_NOCOLORKEY";
case DDERR_NOCOLORKEYHW:
return "DDERR_NOCOLORKEYHW";
case DDERR_NOCOOPERATIVELEVELSET:
return "DDERR_NOCOOPERATIVELEVELSET";
case DDERR_NODC:
return "DDERR_NODC";
case DDERR_NODDROPSHW:
return "DDERR_NODDROPSHW";
case DDERR_NODIRECTDRAWHW:
return "DDERR_NODIRECTDRAWHW";
case DDERR_NODIRECTDRAWSUPPORT:
return "DDERR_NODIRECTDRAWSUPPORT";
case DDERR_NOEMULATION:
return "DDERR_NOEMULATION";
case DDERR_NOEXCLUSIVEMODE:
return "DDERR_NOEXCLUSIVEMODE";
case DDERR_NOFLIPHW:
return "DDERR_NOFLIPHW";
case DDERR_NOFOCUSWINDOW:
return "DDERR_NOFOCUSWINDOW";
case DDERR_NOGDI:
return "DDERR_NOGDI";
case DDERR_NOHWND:
return "DDERR_NOHWND";
case DDERR_NOMIPMAPHW:
return "DDERR_NOMIPMAPHW";
case DDERR_NOMIRRORHW:
return "DDERR_NOMIRRORHW";
case DDERR_NONONLOCALVIDMEM:
return "DDERR_NONONLOCALVIDMEM";
case DDERR_NOOPTIMIZEHW:
return "DDERR_NOOPTIMIZEHW";
case DDERR_NOOVERLAYDEST:
return "DDERR_NOOVERLAYDEST";
case DDERR_NOOVERLAYHW:
return "DDERR_NOOVERLAYHW";
case DDERR_NOPALETTEATTACHED:
return "DDERR_NOPALETTEATTACHED";
case DDERR_NOPALETTEHW:
return "DDERR_NOPALETTEHW";
case DDERR_NORASTEROPHW:
return "DDERR_NORASTEROPHW";
case DDERR_NOROTATIONHW:
return "DDERR_NOROTATIONHW";
case DDERR_NOSTRETCHHW:
return "DDERR_NOSTRETCHHW";
case DDERR_NOT4BITCOLOR:
return "DDERR_NOT4BITCOLOR";
case DDERR_NOT4BITCOLORINDEX:
return "DDERR_NOT4BITCOLORINDEX";
case DDERR_NOT8BITCOLOR:
return "DDERR_NOT8BITCOLOR";
case DDERR_NOTAOVERLAYSURFACE:
return "DDERR_NOTAOVERLAYSURFACE";
case DDERR_NOTEXTUREHW:
return "DDERR_NOTEXTUREHW";
case DDERR_NOTFLIPPABLE:
return "DDERR_NOTFLIPPABLE";
case DDERR_NOTFOUND:
return "DDERR_NOTFOUND";
case DDERR_NOTINITIALIZED:
return "DDERR_NOTINITIALIZED";
case DDERR_NOTLOADED:
return "DDERR_NOTLOADED";
case DDERR_NOTLOCKED:
return "DDERR_NOTLOCKED";
case DDERR_NOTPAGELOCKED:
return "DDERR_NOTPAGELOCKED";
case DDERR_NOTPALETTIZED:
return "DDERR_NOTPALETTIZED";
case DDERR_NOVSYNCHW:
return "DDERR_NOVSYNCHW";
case DDERR_NOZBUFFERHW:
return "DDERR_NOZBUFFERHW";
case DDERR_NOZOVERLAYHW:
return "DDERR_NOZOVERLAYHW";
case DDERR_OUTOFCAPS:
return "DDERR_OUTOFCAPS";
case DDERR_OUTOFMEMORY:
return "DDERR_OUTOFMEMORY";
case DDERR_OUTOFVIDEOMEMORY:
return "DDERR_OUTOFVIDEOMEMORY";
case DDERR_OVERLAPPINGRECTS:
return "DDERR_OVERLAPPINGRECTS";
case DDERR_OVERLAYCANTCLIP:
return "DDERR_OVERLAYCANTCLIP";
case DDERR_OVERLAYCOLORKEYONLYONEACTIVE:
return "DDERR_OVERLAYCOLORKEYONLYONEACTIVE";
case DDERR_OVERLAYNOTVISIBLE:
return "DDERR_OVERLAYNOTVISIBLE";
case DDERR_PALETTEBUSY:
return "DDERR_PALETTEBUSY";
case DDERR_PRIMARYSURFACEALREADYEXISTS:
return "DDERR_PRIMARYSURFACEALREADYEXISTS";
case DDERR_REGIONTOOSMALL:
return "DDERR_REGIONTOOSMALL";
case DDERR_SURFACEALREADYATTACHED:
return "DDERR_SURFACEALREADYATTACHED";
case DDERR_SURFACEALREADYDEPENDENT:
return "DDERR_SURFACEALREADYDEPENDENT";
case DDERR_SURFACEBUSY:
return "DDERR_SURFACEBUSY";
case DDERR_SURFACEISOBSCURED:
return "DDERR_SURFACEISOBSCURED";
case DDERR_SURFACELOST:
return "DDERR_SURFACELOST";
case DDERR_SURFACENOTATTACHED:
return "DDERR_SURFACENOTATTACHED";
case DDERR_TOOBIGHEIGHT:
return "DDERR_TOOBIGHEIGHT";
case DDERR_TOOBIGSIZE:
return "DDERR_TOOBIGSIZE";
case DDERR_TOOBIGWIDTH:
return "DDERR_TOOBIGWIDTH";
case DDERR_UNSUPPORTED:
return "DDERR_UNSUPPORTED";
case DDERR_UNSUPPORTEDFORMAT:
return "DDERR_UNSUPPORTEDFORMAT";
case DDERR_UNSUPPORTEDMASK:
return "DDERR_UNSUPPORTEDMASK";
case DDERR_UNSUPPORTEDMODE:
return "DDERR_UNSUPPORTEDMODE";
case DDERR_VERTICALBLANKINPROGRESS:
return "DDERR_VERTICALBLANKINPROGRESS";
case DDERR_VIDEONOTACTIVE:
return "DDERR_VIDEONOTACTIVE";
case DDERR_WASSTILLDRAWING:
return "DDERR_WASSTILLDRAWING";
case DDERR_WRONGMODE:
return "DDERR_WRONGMODE";
case DDERR_XALIGN:
return "DDERR_XALIGN";
default:
break;
}
return "Unknown error";
}
//-------------------------------------------------------------------------------------------------
// MOSTLY STATIC INTERNAL WINDOWS THINGS
//=================================================================================================
//
// ShowErrorBox() -- shows an error message box
//
static void ShowErrorBox(const char *m)
{
TCHAR msg[1024];
wsprintf(msg, "%s: %s", m, GetWindowsErrorMsg(GetLastError()));
MessageBox(0, msg, apptitle, MB_OK|MB_ICONSTOP);
}
//
// CheckWinVersion() -- check to see what version of Windows we happen to be running under
//
static BOOL CheckWinVersion(void)
{
OSVERSIONINFO osv;
ZeroMemory(&osv, sizeof(osv));
osv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (!GetVersionEx(&osv)) return TRUE;
// haha, yeah, like it will work on Win32s
if (osv.dwPlatformId == VER_PLATFORM_WIN32s) return TRUE;
// we don't like NT 3.51
if (osv.dwMajorVersion < 4) return TRUE;
// nor do we like NT 4
if (osv.dwPlatformId == VER_PLATFORM_WIN32_NT &&
osv.dwMajorVersion == 4) return TRUE;
return FALSE;
}
//
// WndProcCallback() -- the Windows window callback
//
static LRESULT CALLBACK WndProcCallback(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
/* RECT rect;
POINT pt;
HRESULT result; */
#if defined(POLYMOST) && defined(USE_OPENGL)
if (hWnd == hGLWindow) return DefWindowProc(hWnd,uMsg,wParam,lParam);
#endif
switch (uMsg)
{
case WM_SYSCOMMAND:
// don't let the monitor fall asleep or let the screensaver activate
if (wParam == SC_SCREENSAVE || wParam == SC_MONITORPOWER) return 0;
// Since DirectInput won't let me set an exclusive-foreground
// keyboard for some unknown reason I just have to tell Windows to
// rack off with its keyboard accelerators.
if (wParam == SC_KEYMENU || wParam == SC_HOTKEY) return 0;
break;
case WM_ACTIVATEAPP:
{
appactive = wParam;
#if defined(POLYMOST) && defined(USE_OPENGL)
if (hGLWindow)
{
if (!appactive && fullscreen)
{
realfs = fullscreen;
setgamemode(!fullscreen,xdim,ydim,bpp);
ShowWindow(hWindow, SW_MINIMIZE);
}
else if (appactive && realfs)
{
ShowWindow(hWindow, SW_SHOWNORMAL);
SetForegroundWindow(hWindow);
SetFocus(hWindow);
setgamemode(realfs,xdim,ydim,bpp);
realfs = 0;
}
}
#endif
if (backgroundidle)
SetPriorityClass(GetCurrentProcess(),
appactive ? NORMAL_PRIORITY_CLASS : IDLE_PRIORITY_CLASS);
break;
}
case WM_ACTIVATE:
if (desktopbpp <= 8)
{
if (appactive)
{
setpalette(0,0,0);
SetBWSystemColours();
// initprintf("Resetting palette.\n");
}
else
{
RestoreSystemColours();
// initprintf("Resetting system colours.\n");
}
}
AcquireInputDevices(appactive,-1);
break;
case WM_SIZE:
if (wParam == SIZE_MAXHIDE || wParam == SIZE_MINIMIZED) appactive = 0;
else appactive = 1;
AcquireInputDevices(appactive,-1);
break;
case WM_PALETTECHANGED:
// someone stole the palette so try and steal it back
if (appactive && (HWND)wParam != hWindow) setpalette(0,0,0);
break;
case WM_DISPLAYCHANGE:
// desktop settings changed so adjust our world-view accordingly
desktopxdim = LOWORD(lParam);
desktopydim = HIWORD(lParam);
desktopbpp = wParam;
getvalidmodes();
break;
case WM_PAINT:
repaintneeded=1;
break;
// don't draw the frame if fullscreen
//case WM_NCPAINT:
//if (!fullscreen) break;
//return 0;
case WM_ERASEBKGND:
return TRUE;
case WM_MOVE:
// windowx = LOWORD(lParam);
// windowy = HIWORD(lParam);
return 0;
case WM_MOVING:
{
RECT *RECTYMcRECT = (LPRECT)lParam;
windowx = RECTYMcRECT->left;
windowy = RECTYMcRECT->top;
return 0;
}
case WM_CLOSE:
quitevent = 1;
return 0;
case WM_KEYDOWN:
case WM_KEYUP:
// pause sucks. I read that apparently it doesn't work the same everwhere
// with DirectInput but it does with Windows messages. Oh well.
if (wParam == VK_PAUSE && (lParam & 0x80000000l))
{
SetKey(0x59, 1);
if (keypresscallback)
keypresscallback(0x59, 1);
}
break;
// JBF 20040115: Alt-F4 upsets us, so drop all system keys on their asses
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
return 0;
case WM_CHAR:
if (((keyasciififoend+1)&(KEYFIFOSIZ-1)) == keyasciififoplc) return 0;
if ((keyasciififoend - keyasciififoplc) > 0) return 0;
keyasciififo[keyasciififoend] = (unsigned char)wParam;
keyasciififoend = ((keyasciififoend+1)&(KEYFIFOSIZ-1));
//OSD_Printf("WM_CHAR %d, %d-%d\n",wParam,keyasciififoplc,keyasciififoend);
return 0;
case WM_HOTKEY:
return 0;
case WM_ENTERMENULOOP:
case WM_ENTERSIZEMOVE:
AcquireInputDevices(0,-1);
return 0;
case WM_EXITMENULOOP:
case WM_EXITSIZEMOVE:
AcquireInputDevices(1,-1);
return 0;
case WM_DESTROY:
hWindow = 0;
//PostQuitMessage(0); // JBF 20040115: not anymore
return 0;
default:
break;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
//
// RegisterWindowClass() -- register the window class
//
static BOOL RegisterWindowClass(void)
{
WNDCLASSEX wcx;
if (window_class_registered) return FALSE;
//initprintf("Registering window class\n");
wcx.cbSize = sizeof(wcx);
wcx.style = CS_OWNDC;
wcx.lpfnWndProc = WndProcCallback;
wcx.cbClsExtra = 0;
wcx.cbWndExtra = 0;
wcx.hInstance = hInstance;
wcx.hIcon = LoadImage(hInstance, MAKEINTRESOURCE(100), IMAGE_ICON,
GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), LR_DEFAULTCOLOR);
wcx.hCursor = LoadCursor(NULL, IDC_ARROW);
wcx.hbrBackground = (HBRUSH)COLOR_GRAYTEXT;
wcx.lpszMenuName = NULL;
wcx.lpszClassName = WindowClass;
wcx.hIconSm = LoadImage(hInstance, MAKEINTRESOURCE(100), IMAGE_ICON,
GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), LR_DEFAULTCOLOR);
if (!RegisterClassEx(&wcx))
{
ShowErrorBox("Failed to register window class");
return TRUE;
}
window_class_registered = TRUE;
return FALSE;
}
//
// GetWindowsErrorMsg() -- gives a pointer to a static buffer containing the Windows error message
//
static LPTSTR GetWindowsErrorMsg(DWORD code)
{
static TCHAR lpMsgBuf[1024];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, code,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)lpMsgBuf, 1024, NULL);
return lpMsgBuf;
}
//
// makeasmwriteable() -- removes write protection from the self-modifying assembly code
//
void makeasmwriteable(void)
{
#ifndef ENGINE_USING_A_C
extern int dep_begin, dep_end;
DWORD oldprot;
if (!VirtualProtect((LPVOID)&dep_begin, (SIZE_T)&dep_end - (SIZE_T)&dep_begin, PAGE_EXECUTE_READWRITE, &oldprot))
{
ShowErrorBox("Problem making code writeable");
}
#endif
}
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