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devilutionX/Source/dx.cpp

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#include "diablo.h"
#include "../3rdParty/Storm/Source/storm.h"
BYTE *sgpBackBuf;
LPDIRECTDRAW lpDDInterface;
IDirectDrawPalette *lpDDPalette; // idb
int sgdwLockCount;
BYTE *gpBuffer;
IDirectDrawSurface *lpDDSBackBuf;
IDirectDrawSurface *lpDDSPrimary;
#ifdef _DEBUG
int locktbl[256];
#endif
#ifdef __cplusplus
static CCritSect sgMemCrit;
#endif
char gbBackBuf; // weak
char gbEmulate; // weak
HMODULE ghDiabMod; // idb
void dx_init(HWND hWnd)
{
HRESULT hDDVal;
int winw, winh;
BOOL bSuccess;
GUID *lpGUID;
/// ASSERT: assert(! gpBuffer);
/// ASSERT: assert(! sgdwLockCount);
/// ASSERT: assert(! sgpBackBuf);
SetFocus(hWnd);
ShowWindow(hWnd, SW_SHOWNORMAL);
lpGUID = (GUID *)DDCREATE_EMULATIONONLY;
if(!gbEmulate) {
lpGUID = NULL;
}
hDDVal = dx_DirectDrawCreate(lpGUID, &lpDDInterface, NULL);
if(hDDVal != DD_OK) {
ErrDlg(IDD_DIALOG1, hDDVal, "C:\\Src\\Diablo\\Source\\dx.cpp", 149);
}
#ifdef COLORFIX
#ifdef __DDRAWI_INCLUDED__
((LPDDRAWI_DIRECTDRAW_INT)lpDDInterface)->lpLcl->dwAppHackFlags |= 0x800;
#else
((DWORD **)lpDDInterface)[1][18] |= 0x800;
#endif
#endif
#ifndef _DEBUG
fullscreen = TRUE;
#endif
if(!fullscreen) {
#ifdef __cplusplus
hDDVal = lpDDInterface->SetCooperativeLevel(hWnd, DDSCL_NORMAL | DDSCL_ALLOWREBOOT);
#else
hDDVal = lpDDInterface->lpVtbl->SetCooperativeLevel(lpDDInterface, hWnd, DDSCL_NORMAL | DDSCL_ALLOWREBOOT);
#endif
if(hDDVal == DDERR_EXCLUSIVEMODEALREADYSET) {
TriggerBreak();
} else if(hDDVal != DD_OK) {
ErrDlg(IDD_DIALOG1, hDDVal, "C:\\Diablo\\Direct\\dx.cpp", 155);
}
SetWindowPos(hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
} else {
#ifdef __cplusplus
hDDVal = lpDDInterface->SetCooperativeLevel(hWnd, DDSCL_EXCLUSIVE | DDSCL_ALLOWREBOOT | DDSCL_FULLSCREEN);
#else
hDDVal = lpDDInterface->lpVtbl->SetCooperativeLevel(lpDDInterface, hWnd, DDSCL_EXCLUSIVE | DDSCL_ALLOWREBOOT | DDSCL_FULLSCREEN);
#endif
if(hDDVal == DDERR_EXCLUSIVEMODEALREADYSET) {
TriggerBreak();
} else if(hDDVal != DD_OK) {
ErrDlg(IDD_DIALOG1, hDDVal, "C:\\Src\\Diablo\\Source\\dx.cpp", 170);
}
#ifdef __cplusplus
hDDVal = lpDDInterface->SetDisplayMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP);
#else
hDDVal = lpDDInterface->lpVtbl->SetDisplayMode(lpDDInterface, SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP);
#endif
if(hDDVal != DD_OK) {
winw = GetSystemMetrics(SM_CXSCREEN);
winh = GetSystemMetrics(SM_CYSCREEN);
#ifdef __cplusplus
hDDVal = lpDDInterface->SetDisplayMode(winw, winh, SCREEN_BPP);
#else
hDDVal = lpDDInterface->lpVtbl->SetDisplayMode(lpDDInterface, winw, winh, SCREEN_BPP);
#endif
if(hDDVal != DD_OK) {
ErrDlg(IDD_DIALOG1, hDDVal, "C:\\Src\\Diablo\\Source\\dx.cpp", 183);
}
}
}
dx_create_primary_surface();
palette_init();
GdiSetBatchLimit(1);
dx_create_back_buffer();
bSuccess = SDrawManualInitialize(hWnd, lpDDInterface, lpDDSPrimary, NULL, NULL, lpDDSBackBuf, lpDDPalette, NULL);
/// ASSERT: assert(bSuccess);
}
// 52A549: using guessed type char gbEmulate;
void dx_create_back_buffer()
{
DDSCAPS caps;
HRESULT error_code;
DDSURFACEDESC ddsd;
#ifdef __cplusplus
error_code = lpDDSPrimary->GetCaps(&caps);
#else
error_code = lpDDSPrimary->lpVtbl->GetCaps(lpDDSPrimary, &caps);
#endif
if (error_code != DD_OK)
DDErrMsg(error_code, 59, "C:\\Src\\Diablo\\Source\\dx.cpp");
if (!gbBackBuf) {
ddsd.dwSize = sizeof(ddsd);
#ifdef __cplusplus
error_code = lpDDSPrimary->Lock(NULL, &ddsd, DDLOCK_WRITEONLY | DDLOCK_WAIT, NULL);
#else
error_code = lpDDSPrimary->lpVtbl->Lock(lpDDSPrimary, NULL, &ddsd, DDLOCK_WRITEONLY | DDLOCK_WAIT, NULL);
#endif
if (error_code == DD_OK) {
#ifdef __cplusplus
lpDDSPrimary->Unlock(NULL);
#else
lpDDSPrimary->lpVtbl->Unlock(lpDDSPrimary, NULL);
#endif
sgpBackBuf = (BYTE *)DiabloAllocPtr(BUFFER_HEIGHT * BUFFER_WIDTH);
return;
}
if (error_code != DDERR_CANTLOCKSURFACE)
ErrDlg(IDD_DIALOG1, error_code, "C:\\Src\\Diablo\\Source\\dx.cpp", 81);
}
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwWidth = BUFFER_WIDTH;
ddsd.lPitch = BUFFER_WIDTH;
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_PIXELFORMAT | DDSD_PITCH | DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_SYSTEMMEMORY | DDSCAPS_OFFSCREENPLAIN;
ddsd.dwHeight = BUFFER_HEIGHT;
ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
#ifdef __cplusplus
error_code = lpDDSPrimary->GetPixelFormat(&ddsd.ddpfPixelFormat);
#else
error_code = lpDDSPrimary->lpVtbl->GetPixelFormat(lpDDSPrimary, &ddsd.ddpfPixelFormat);
#endif
if (error_code != DD_OK)
ErrDlg(IDD_DIALOG1, error_code, "C:\\Src\\Diablo\\Source\\dx.cpp", 94);
#ifdef __cplusplus
error_code = lpDDInterface->CreateSurface(&ddsd, &lpDDSBackBuf, NULL);
#else
error_code = lpDDInterface->lpVtbl->CreateSurface(lpDDInterface, &ddsd, &lpDDSBackBuf, NULL);
#endif
if (error_code != DD_OK)
ErrDlg(IDD_DIALOG1, error_code, "C:\\Src\\Diablo\\Source\\dx.cpp", 96);
}
// 52A548: using guessed type char gbBackBuf;
void dx_create_primary_surface()
{
DDSURFACEDESC ddsd;
HRESULT error_code;
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
#ifdef __cplusplus
error_code = lpDDInterface->CreateSurface(&ddsd, &lpDDSPrimary, NULL);
#else
error_code = lpDDInterface->lpVtbl->CreateSurface(lpDDInterface, &ddsd, &lpDDSPrimary, NULL);
#endif
if (error_code != DD_OK)
ErrDlg(IDD_DIALOG1, error_code, "C:\\Src\\Diablo\\Source\\dx.cpp", 109);
}
HRESULT dx_DirectDrawCreate(LPGUID guid, LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnkOuter)
{
HRESULT(WINAPI * DirectDrawCreate)
(LPGUID lpGuid, LPDIRECTDRAW * lplpDD, LPUNKNOWN pUnkOuter);
if (ghDiabMod == NULL) {
ghDiabMod = LoadLibrary("ddraw.dll");
if (ghDiabMod == NULL) {
ErrDlg(IDD_DIALOG4, GetLastError(), "C:\\Src\\Diablo\\Source\\dx.cpp", 122);
}
}
DirectDrawCreate = (HRESULT(WINAPI *)(LPGUID, LPDIRECTDRAW *, LPUNKNOWN))GetProcAddress(ghDiabMod, "DirectDrawCreate");
if (DirectDrawCreate == NULL) {
ErrDlg(IDD_DIALOG4, GetLastError(), "C:\\Src\\Diablo\\Source\\dx.cpp", 127);
}
return DirectDrawCreate(guid, lplpDD, pUnkOuter);
}
void lock_buf(BYTE idx)
{
#ifdef _DEBUG
++locktbl[idx];
#endif
lock_buf_priv();
}
void lock_buf_priv()
{
DDSURFACEDESC ddsd;
HRESULT error_code;
#ifdef __cplusplus
sgMemCrit.Enter();
#endif
if (sgpBackBuf != NULL) {
gpBuffer = sgpBackBuf;
sgdwLockCount++;
return;
}
if (lpDDSBackBuf == NULL) {
Sleep(20000);
app_fatal("lock_buf_priv");
sgdwLockCount++;
return;
}
if (sgdwLockCount != 0) {
sgdwLockCount++;
return;
}
ddsd.dwSize = sizeof(ddsd);
#ifdef __cplusplus
error_code = lpDDSBackBuf->Lock(NULL, &ddsd, DDLOCK_WAIT, NULL);
#else
error_code = lpDDSBackBuf->lpVtbl->Lock(lpDDSBackBuf, NULL, &ddsd, DDLOCK_WAIT, NULL);
#endif
if (error_code != DD_OK)
DDErrMsg(error_code, 235, "C:\\Src\\Diablo\\Source\\dx.cpp");
gpBufEnd += (size_t)ddsd.lpSurface;
gpBuffer = (BYTE *)ddsd.lpSurface;
sgdwLockCount++;
}
void unlock_buf(BYTE idx)
{
#ifdef _DEBUG
if (!locktbl[idx])
app_fatal("Draw lock underflow: 0x%x", idx);
--locktbl[idx];
#endif
unlock_buf_priv();
}
void unlock_buf_priv()
{
HRESULT error_code;
if (sgdwLockCount == 0)
app_fatal("draw main unlock error");
if (gpBuffer == NULL)
app_fatal("draw consistency error");
sgdwLockCount--;
if (sgdwLockCount == 0) {
gpBufEnd -= (size_t)gpBuffer;
gpBuffer = NULL;
if (sgpBackBuf == NULL) {
#ifdef __cplusplus
error_code = lpDDSBackBuf->Unlock(NULL);
#else
error_code = lpDDSBackBuf->lpVtbl->Unlock(lpDDSBackBuf, NULL);
#endif
if (error_code != DD_OK)
DDErrMsg(error_code, 273, "C:\\Src\\Diablo\\Source\\dx.cpp");
}
}
#ifdef __cplusplus
sgMemCrit.Leave();
#endif
}
void dx_cleanup()
{
if (ghMainWnd)
ShowWindow(ghMainWnd, SW_HIDE);
SDrawDestroy();
#ifdef __cplusplus
sgMemCrit.Enter();
#endif
if (sgpBackBuf != NULL) {
MemFreeDbg(sgpBackBuf);
} else if (lpDDSBackBuf != NULL) {
#ifdef __cplusplus
lpDDSBackBuf->Release();
#else
lpDDSBackBuf->lpVtbl->Release(lpDDSBackBuf);
#endif
lpDDSBackBuf = NULL;
}
sgdwLockCount = 0;
gpBuffer = NULL;
#ifdef __cplusplus
sgMemCrit.Leave();
#endif
if (lpDDSPrimary) {
#ifdef __cplusplus
lpDDSPrimary->Release();
#else
lpDDSPrimary->lpVtbl->Release(lpDDSPrimary);
#endif
lpDDSPrimary = NULL;
}
if (lpDDPalette) {
#ifdef __cplusplus
lpDDPalette->Release();
#else
lpDDPalette->lpVtbl->Release(lpDDPalette);
#endif
lpDDPalette = NULL;
}
if (lpDDInterface) {
#ifdef __cplusplus
lpDDInterface->Release();
#else
lpDDInterface->lpVtbl->Release(lpDDInterface);
#endif
lpDDInterface = NULL;
}
}
void dx_reinit()
{
int lockCount;
#ifdef __cplusplus
sgMemCrit.Enter();
#endif
ClearCursor();
lockCount = sgdwLockCount;
while (sgdwLockCount != 0)
unlock_buf_priv();
dx_cleanup();
drawpanflag = 255;
dx_init(ghMainWnd);
while (lockCount != 0) {
lock_buf_priv();
lockCount--;
}
#ifdef __cplusplus
sgMemCrit.Leave();
#endif
}