Symbian

开发平台：

Visual C++

windraw2.cpp：源码内容

/* ***** BEGIN LICENSE BLOCK *****
* Source last modified: $Id: windraw2.cpp,v 1.19.10.1 2004/07/09 01:59:19 hubbe Exp $
*
*
* The contents of this file, and the files included with this file,
* are subject to the current version of the RealNetworks Public
* Source License (the "RPSL") available at
* http://www.helixcommunity.org/content/rpsl unless you have licensed
* the file under the current version of the RealNetworks Community
* Source License (the "RCSL") available at
* http://www.helixcommunity.org/content/rcsl, in which case the RCSL
* will apply. You may also obtain the license terms directly from
* RealNetworks. You may not use this file except in compliance with
* the RPSL or, if you have a valid RCSL with RealNetworks applicable
* to this file, the RCSL. Please see the applicable RPSL or RCSL for
* the rights, obligations and limitations governing use of the
* contents of the file.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL") in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your version of
* this file only under the terms of the GPL, and not to allow others
* to use your version of this file under the terms of either the RPSL
* or RCSL, indicate your decision by deleting the provisions above
* and replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient may
* use your version of this file under the terms of any one of the
* RPSL, the RCSL or the GPL.
*
* This file is part of the Helix DNA Technology. RealNetworks is the
* developer of the Original Code and owns the copyrights in the
* portions it created.
*
* This file, and the files included with this file, is distributed
* and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
* KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
* ENJOYMENT OR NON-INFRINGEMENT.
*
* Technology Compatibility Kit Test Suite(s) Location:
* http://www.helixcommunity.org/content/tck
*
* Contributor(s):
*
* ***** END LICENSE BLOCK ***** */
/* for MS VC++ 6.0, pntypes needs to be included before windows include files */
#include "hxtypes.h"
#include "hxcom.h"
#include "hxwintyp.h"
#include "hxvsurf.h"
#include "hxassert.h"
#include "hxthread.h"
#include "hxtick.h"
#include "dllpath.h"
#include "hxerror.h"
#include "hxstrutl.h"
/* Windows include files: */
#include <windows.h>
#include "ddraw.h"
#define COMPILE_MULTIMON_STUBS
#include <multimon.h>
/* standard libraries: */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <math.h>
#include "hxcom.h"
#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE
static const char HX_THIS_FILE[] = __FILE__;
#endif
/* our stuff:*/
#include "hxcolor.h"
#include "colormap.h"
#include "windraw2.h"
#include "ddpdb.h" /* DirectDraw profiles database */
/* DirectDraw profile: */
static LPDDDEVICEPROFILE lpddprofDirectDrawProfile = NULL;
//#define _CHECK_PERFORMANCE
//#define _REMOVE_WINDRAW_CLIPPER
// Exception handler mutex
static CRITICAL_SECTION g_ehandlerMutex;
static INT32 g_ehandlerMutexCnt = 0;
static INT32 g_ehandlerSilent = 1;
static INT32 g_ehandlerCount = 0;
#include "hxmap.h"
typedef void (HXEXPORT_PTR INITCOLORCONVERTERFN)();
typedef int (HXEXPORT_PTR SETRGB8PALETTEFN) (int,UINT32*,int*);
INITCOLORCONVERTERFN pfInitColorConverter = 0;
SETRGB8PALETTEFN pfSetRGB8Palette = 0;
HMODULE z_hHxColor = 0;
struct CEnumDisplaySetting
{
CEnumDisplaySetting();
~CEnumDisplaySetting();
CHXMapStringToOb m_Settings;
void GetSettings(CHXSimpleList* pList);
};
CEnumDisplaySetting::CEnumDisplaySetting()
{
DEVMODE modeDesc;
DWORD index = 0;
char buffer[64]; /* Flawfinder: ignore */
while(EnumDisplaySettings(0, index, &modeDesc))
{
sprintf(buffer, "%dx%dx%d", modeDesc.dmPelsWidth, modeDesc.dmPelsHeight, modeDesc.dmBitsPerPel); /* Flawfinder: ignore */
void* ptemp;
if (!m_Settings.Lookup(buffer, ptemp))
{
CModesDesc* pDesc = new CModesDesc;
pDesc->m_nWidth = modeDesc.dmPelsWidth;
pDesc->m_nHeight = modeDesc.dmPelsHeight;
pDesc->m_nBitCount = modeDesc.dmBitsPerPel;
m_Settings.SetAt(buffer, pDesc);
}
index++;
}
}
CEnumDisplaySetting::~CEnumDisplaySetting()
{
CHXMapStringToOb::Iterator ndx = m_Settings.Begin();
for(; ndx != m_Settings.End(); ++ndx)
{
CModesDesc* pDesc = (CModesDesc*) (*ndx);
delete pDesc;
}
m_Settings.RemoveAll();
}
void CEnumDisplaySetting::GetSettings(CHXSimpleList* pList)
{
CHXMapStringToOb::Iterator i;
i = m_Settings.Begin();
for(; i!= m_Settings.End(); ++i)
{
CModesDesc* pOldDesc = (CModesDesc*) *i;
CModesDesc* pNewDesc = new CModesDesc;
pNewDesc->m_nWidth = pOldDesc->m_nWidth;
pNewDesc->m_nHeight = pOldDesc->m_nHeight;
pNewDesc->m_nBitCount = pOldDesc->m_nBitCount;
pList->AddTail(pNewDesc);
}
}
CEnumDisplaySetting zm_DisplaySettings;
/***************************************
*
* Routines for using DirectDraw on a multimonitor system
*
*/
/* DDRAW.H might not include these: */
#ifndef DDENUM_ATTACHEDSECONDARYDEVICES
#define DDENUM_ATTACHEDSECONDARYDEVICES 0x00000001L
#endif
#if DIRECTDRAW_VERSION <= 0x0500
typedef BOOL (FAR PASCAL * LPDDENUMCALLBACKEXA) (GUID FAR *, LPSTR, LPSTR, LPVOID, HANDLE);
typedef HRESULT (WINAPI * LPDIRECTDRAWENUMERATEEXA) ( LPDDENUMCALLBACKEXA lpCallback, LPVOID lpContext, DWORD dwFlags);
#define HMONITOR HANDLE
#endif
typedef HRESULT (*PDRAWCREATE) (IID *,LPDIRECTDRAW *,LPUNKNOWN);
typedef HRESULT (*PDRAWENUM) (LPDDENUMCALLBACKA, LPVOID);
/*
* FindDeviceCallback functions:
*/
typedef struct
{
LPSTR lpszDevice;
GUID* lpGUID;
GUID GUID;
BOOL fFound;
} FINDDEVICEDATA;
static BOOL CALLBACK FindDeviceCallback (GUID* lpGUID, LPSTR lpszName,
LPSTR lpszDevice, LPVOID lParam)
{
FINDDEVICEDATA *p = (FINDDEVICEDATA*) lParam;
if (lstrcmpiA (p->lpszDevice, lpszDevice) == 0) {
if (lpGUID) {
p->GUID = *lpGUID;
p->lpGUID = &p->GUID;
} else
p->lpGUID = NULL;
p->fFound = TRUE;
return FALSE;
}
return TRUE;
}
static BOOL CALLBACK FindDeviceCallbackEx (GUID* lpGUID, LPSTR lpszName,
LPSTR lpszDevice, LPVOID lParam, HMONITOR hMonitor)
{
FINDDEVICEDATA *p = (FINDDEVICEDATA*) lParam;
if (lstrcmpiA (p->lpszDevice, lpszDevice) == 0) {
if (lpGUID) {
p->GUID = *lpGUID;
p->lpGUID = &p->GUID;
} else
p->lpGUID = NULL;
p->fFound = TRUE;
return FALSE;
}
return TRUE;
}
HRESULT WINAPI EnumSurfacesCallback(LPDIRECTDRAWSURFACE lpDDSurface,
LPDDSURFACEDESC lpDDSurfaceDesc,
LPVOID pSurface)
{
LPDIRECTDRAWSURFACE *lpSurf = (LPDIRECTDRAWSURFACE*)pSurface;
if (lpDDSurface)
{
*lpSurf = lpDDSurface;
lpDDSurface->Release();
}
return DDENUMRET_OK;
}
/*
* DirectDrawCreateFromDevice
*
* create a DirectDraw object for a particular device
*/
static IDirectDraw * DirectDrawCreateFromDevice (LPSTR lpszDevice,
PDRAWCREATE DirectDrawCreateP, PDRAWENUM DirectDrawEnumerateP)
{
IDirectDraw *pdd = NULL;
/* check if device name is specified: */
if (lpszDevice != NULL) {
/* try to find device with a given name: */
FINDDEVICEDATA find;
find.lpszDevice = lpszDevice;
find.fFound = FALSE;
DirectDrawEnumerateP (FindDeviceCallback, (LPVOID)&find);
/* check if found: */
if (find.fFound) {
/* In 4bpp mode the following DDraw call causes a
* message box to be popped up by DDraw (!?!).
* It's DDraw's fault, but we don't like it.
* So we make sure it doesn't happen. */
UINT ErrorMode = SetErrorMode (SEM_FAILCRITICALERRORS);
DirectDrawCreateP (find.lpGUID, &pdd, NULL);
SetErrorMode (ErrorMode);
}
} else
DirectDrawCreateP (NULL, &pdd, NULL);
/* return whatever we have found: */
return pdd;
}
/*
* DirectDrawCreateFromDeviceEx
*
* create a DirectDraw object for a particular device
*/
static IDirectDraw * DirectDrawCreateFromDeviceEx (LPSTR lpszDevice, PDRAWCREATE DirectDrawCreateP, LPDIRECTDRAWENUMERATEEXA DirectDrawEnumerateExP)
{
IDirectDraw *pdd = NULL;
/* check if device name is specified: */
if (lpszDevice != NULL) {
/* try to find device with a given name: */
FINDDEVICEDATA find;
find.lpszDevice = lpszDevice;
find.fFound = FALSE;
DirectDrawEnumerateExP (FindDeviceCallbackEx, (LPVOID)&find, DDENUM_ATTACHEDSECONDARYDEVICES);
/* check if found: */
if (find.fFound) {
/* In 4bpp mode the following DDraw call causes a
* message box to be popped up by DDraw (!?!).
* It's DDraw's fault, but we don't like it.
* So we make sure it doesn't happen. */
UINT ErrorMode = SetErrorMode (SEM_FAILCRITICALERRORS);
DirectDrawCreateP (find.lpGUID, &pdd, NULL);
SetErrorMode (ErrorMode);
}
} else
DirectDrawCreateP (NULL, &pdd, NULL);
/* return whatever we have found: */
return pdd;
}
/***************************************
*
* Routines for dynamic loading and unloading of the DirectDraw library.
*
*/
typedef DWORD (WINAPI *PGETFILEVERSIONINFOSIZE) (LPTSTR,LPDWORD);
typedef BOOL (WINAPI *PGETFILEVERSIONINFO) (LPTSTR,DWORD,DWORD,LPVOID);
typedef BOOL (WINAPI *PVERQUERYVALUE) (LPVOID,LPTSTR,LPVOID,PUINT);
/* forward prototypes: */
HRESULT LockSurface(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpSurface, DDSURFACEDESC *pddsd, BOOL bBlock=TRUE);
HRESULT IsFlipDone(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds, ENUMSURFACE* lpSurfEnum, BOOL bBlock=TRUE);
HRESULT IsFrontBuffer(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds, ENUMSURFACE* lpSurfEnum, BOOL bBlock=TRUE);
HRESULT RestoreSurfaces(LPWINDRAW lpwd, LPWINDRAWSURFACE lpSurface);
HRESULT LoadDirectDraw (LPSTR lpszDevice, LPDIRECTDRAW *ppDirectDraw, HINSTANCE *phDirectDraw);
void ReleaseDirectDraw (LPDIRECTDRAW *ppDirectDraw, LPDIRECTDRAW2 *ppDirectDraw2, HINSTANCE *phDirectDraw);
void DumpDDInfo(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpSurface, char *pFunction);
/*
* We can't be sure that DirectDraw is always available
* so we can't statically link to the library.
* Therefore we load the library, get the function entry
* point addresses and call them to create the driver objects.
* We return S_OK if we manage to load DirectDraw correctly
* otherwise we return E_NOINTERFACE
* We initialise a DirectDraw instance by explicitely loading
* the library and calling GetProcAddress on the DirectDrawCreate
* entry point that it exports
*
* On a multi monitor system, we can get the DirectDraw object
* for any monitor (device) with the optional lpszDevice parameter
*/
static HRESULT LoadDirectDraw (LPSTR lpszDevice,
LPDIRECTDRAW *ppDirectDraw, HINSTANCE *phDirectDraw)
{
UINT ErrorMode;
PDRAWCREATE pDrawCreate;
PDRAWENUM pDrawEnum;
LPDIRECTDRAWENUMERATEEXA pDrawEnumEx;
HRESULT hr = NOERROR;
/*
* Check the display mode if it is less than 8 bits do not call into direct draw.
*/
HDC hdc = GetDC(0);
int bpp = GetDeviceCaps(hdc, BITSPIXEL);
ReleaseDC(0, hdc);
if (bpp < 8)
{
*ppDirectDraw = 0;
return E_NOINTERFACE; /* whatever */
}
/* is DirectDraw already loaded? */
if (*ppDirectDraw) {
/* ... */
return NOERROR;
}
/* make sure the library is available: */
ErrorMode = SetErrorMode (SEM_NOOPENFILEERRORBOX);
*phDirectDraw = LoadLibrary (TEXT ("DDRAW.DLL"));
SetErrorMode (ErrorMode);
if (*phDirectDraw == NULL) {
/* ... */
return E_NOINTERFACE;
}
/* get the DLL address for the creator function: */
pDrawCreate = (PDRAWCREATE) GetProcAddress (*phDirectDraw, "DirectDrawCreate");
/* force ANSI, we assume it: */
pDrawEnum = (PDRAWENUM) GetProcAddress (*phDirectDraw, "DirectDrawEnumerateA");
pDrawEnumEx = (LPDIRECTDRAWENUMERATEEXA)GetProcAddress (*phDirectDraw, "DirectDrawEnumerateExA");
/* we don't need DirectDrawEnumerateEx, that's just for multimon stuff: */
if (pDrawCreate == NULL || pDrawEnum == NULL) {
/* ... */
ReleaseDirectDraw (ppDirectDraw, NULL, phDirectDraw);
return E_NOINTERFACE;
}
/* create a DirectDraw display provider for this device,
* using the fancy multimon-aware version, if it exists: */
if (pDrawEnumEx)
*ppDirectDraw = DirectDrawCreateFromDeviceEx (lpszDevice, pDrawCreate, pDrawEnumEx);
else
*ppDirectDraw = DirectDrawCreateFromDevice (lpszDevice, pDrawCreate, pDrawEnum);
if (*ppDirectDraw == NULL)
{
ReleaseDirectDraw (ppDirectDraw, NULL, phDirectDraw);
return E_NOINTERFACE;
}
return NOERROR;
}
/*
* Called to release any DirectDraw provider we previously loaded.
* We may be called at any time especially when something goes
* horribly wrong and when we need to clean up before returning
* so we can't guarantee that all state variables are consistent
* so free only those really allocated. This should only be called
* once all the reference counts have been released.
*/
void ReleaseDirectDraw (LPDIRECTDRAW *ppDirectDraw, LPDIRECTDRAW2 *ppDirectDraw2, HINSTANCE *phDirectDraw)
{
/* release any DirectDraw provider interface: */
if (ppDirectDraw && *ppDirectDraw) {
IDirectDraw_Release (*ppDirectDraw);
*ppDirectDraw = NULL;
}
if (ppDirectDraw2 && *ppDirectDraw2)
{
(*ppDirectDraw2)->Release();
*ppDirectDraw2 = NULL;
}
/* decrement module load count: */
if (*phDirectDraw) {
FreeLibrary (*phDirectDraw);
*phDirectDraw = NULL;
}
}
#if 0
/*
* Are we running on Direct Draw version 1? We need to find out as
* we rely on specific bug fixes in DirectDraw 2 for fullscreen playback. To
* find out, we simply see if it supports IDirectDraw2. Only version 2 and
* higher support this.
*/
BOOL IsDirectDrawVersion1 (LPDIRECTDRAW pDirectDraw)
{
IDirectDraw2 *p;
HRESULT hr;
/* check if DirectDraw is available: */
if (pDirectDraw == NULL)
return FALSE;
/* query and release interface: */
p = NULL;
hr = IDirectDraw_QueryInterface(pDirectDraw, IID_IDirectDraw2, (void *)&p);
if (p)
IDirectDraw2_Release (p);
/* returns TRUE, if !IDrectDraw2; FALSE otherwise */
return hr != NOERROR;
}
#endif
/***************************************
*
* Routines for using GDI on a multimonitor system
*
*/
/*
* Get display DC.
* Use:
* HDC GetDisplayDC (LPSTR lpszDevice)
* Input:
* lpszDevice - device name to use (in a multimonitor system)
* Returns:
* NULL, if error; !NULL - display device DC.
*/
static HDC GetDisplayDC (LPSTR lpszDevice)
{
HDC hdcDisplay;
/* get a DC on the right monitor - it's ugly, but this is the way
* you have to do it */
if (lpszDevice == NULL || lstrcmpiA (lpszDevice, "DISPLAY") == 0)
hdcDisplay = CreateDCA ("DISPLAY", NULL, NULL, NULL);
else
hdcDisplay = CreateDCA (NULL, lpszDevice, NULL, NULL);
return hdcDisplay;
}
/*
* Get pixel format for a given device context.
* Use:
* HRESULT GetDeviceFormat (HDC hDC, LPBMI lpbmi);
* Input:
* hDC - device context to query
* lpbmi - pointer to a bitmapinfo structure to initialize
* Returns:
* NOERROR, if success, E_FAIL otherwise.
*/
static HRESULT GetDeviceFormat (HDC hDC, LPBMI lpbmi)
{
HBITMAP hBM;
/* initialize the bitmapinfo structure: */
memset (lpbmi, 0, sizeof (BMI));
lpbmi->bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
lpbmi->bmiHeader.biBitCount = 0;
/* retrieve display format parameters: */
hBM = CreateCompatibleBitmap (hDC,1,1);
GetDIBits (hDC,hBM,0,1,NULL, (BITMAPINFO *)& (lpbmi->bmiHeader),DIB_RGB_COLORS);
/* this call will get the color table or the proper bitfields */
GetDIBits (hDC,hBM,0,1,NULL, (BITMAPINFO *)& (lpbmi->bmiHeader),DIB_RGB_COLORS);
DeleteObject (hBM);
/* check the validity of the format & exit: */
return CheckBitmap ((BITMAPINFO *)& (lpbmi->bmiHeader))? NOERROR: E_FAIL;
}
/*
* Retrieves display pixel format. This is normally called
* when we receive WM_DEVMODECHANGED device change messages.
*
* The optional szDevice parameter tells us which monitor we are interested
* in for a multi monitor system.
*
* The calling program mush use global syncronization objects to prevent
* re-entering this code.
*/
static HRESULT GetDisplayFormat (LPBMI lpbmi, LPSTR lpszDevice)
{
HDC hdcDisplay;
HRESULT hr;
/* get a DC of a given monitor: */
if ((hdcDisplay = GetDisplayDC (lpszDevice)) == NULL)
return E_FAIL;
/* retrieve display format parameters: */
hr = GetDeviceFormat (hdcDisplay, lpbmi);
/* delete hdcDisplay & exit: */
DeleteDC (hdcDisplay);
return hr;
}
/*
* Generates the "standard" WinDraw palette.
* Since we will have to deal with multiple datatypes, each having
* its own combination of colors, what we really need is some "uniform"
* palette, we could use to render all these objects with minimum loss
* of quality.
* This function generates so-called 6x6x6-color palette that contains
* all possible combinations of 6 uniformly-displaced values for each
* color component (R, G, and B). To avoid interference with Windows
* system palette (first and last 10 entries in the palette), we will
* insert our colors in 10..225 range, and mark them as non-collapsable
* in hope to boost the performance (ideally, this should prevent GDI
* from compressing the palette, and eliminate extra mapping).
*/
static HRESULT CreateDefaultPalette (LPPALETTEENTRY lppe,
int *pnLoColor, int *pnHiColor, LPSTR lpszDevice)
{
HDC hdc;
HRESULT hr = E_FAIL;
unsigned int i, r, g, b;
/* get a DC of a given monitor: */
if ((hdc = GetDisplayDC (lpszDevice)) != NULL) {
/* apparently some displays have odd numbers of system colors: */
if (GetDeviceCaps (hdc, NUMRESERVED) == 20) {
/* retrieve system colors: */
memset (lppe, 0, 256 * sizeof (RGBQUAD));
GetSystemPaletteEntries (hdc, 0, 10, lppe);
GetSystemPaletteEntries (hdc, 246, 10, lppe + 246);
/* generate 6x6x6 (~2.58 bits/channel) palette: */
i = 10;
for (b = 0; b <= 0xFF; b += 0x33)
for (g = 0; g <= 0xFF; g += 0x33)
for (r = 0; r <= 0xFF; r += 0x33) {
/* create a palette entry: */
lppe [i].peGreen = g;
lppe [i].peBlue = b;
lppe [i].peRed = r;
lppe [i].peFlags = PC_NOCOLLAPSE; /* !!! */
i ++;
}
/* store the range of our colors: */
*pnLoColor = 10;
*pnHiColor = i;
hr = NOERROR;
}
DeleteDC (hdc);
}
return hr;
}
char*
CollectDDInfo(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpSurface, char *pFunction, char* pSeparator)
{
char* pszDDInfo = NULL;
CHXString pDDInfo;
char szTemp[MAX_DISPLAY_NAME]; /* Flawfinder: ignore */
char szTmp[MAX_DISPLAY_NAME]; /* Flawfinder: ignore */
// write date and time of log
SYSTEMTIME time;
memset(&time, 0, sizeof(time));
GetSystemTime(&time);
GetDateFormat(LOCALE_SYSTEM_DEFAULT, 0, &time, "ddd',' MMM dd yyyy, ", szTmp, sizeof(szTmp));
SafeSprintf(szTemp, MAX_DISPLAY_NAME, "nLog Entry: %s", szTmp);
pDDInfo = szTemp;
GetTimeFormat(LOCALE_SYSTEM_DEFAULT, 0, &time, "hh:mm:ss tt", szTmp, sizeof(szTmp));
SafeSprintf(szTemp, MAX_DISPLAY_NAME, "%s%s", szTmp, pSeparator);
pDDInfo += szTemp;
// write systime members
SafeSprintf(szTemp, MAX_DISPLAY_NAME, "Systime: %d %d %d %d %d %d %d %d%s",
time.wYear, time.wMonth, time.wDayOfWeek, time.wDay,
time.wHour, time.wMinute, time.wSecond, time.wMilliseconds, pSeparator);
pDDInfo += szTemp;
// write function that caused fault
SafeSprintf(szTemp, MAX_DISPLAY_NAME, "Function: %s%s", pFunction, pSeparator);
pDDInfo += szTemp;
// write OS version
OSVERSIONINFO ver;
memset(&ver, 0, sizeof(ver));
ver.dwOSVersionInfoSize = sizeof(ver);
GetVersionEx(&ver);
SafeSprintf(szTemp, MAX_DISPLAY_NAME,
"OS MajorVersion: %ld MinorVersion: %ld BuildNum: %ld PlatformId: %ld Build: %s%s",
ver.dwMajorVersion, ver.dwMinorVersion, ver.dwBuildNumber, ver.dwPlatformId, ver.szCSDVersion, pSeparator);
pDDInfo += szTemp;
// write processor info
SYSTEM_INFO sysinfo;
memset(&sysinfo, 0, sizeof(sysinfo));
GetSystemInfo(&sysinfo);
SafeSprintf(szTemp, MAX_DISPLAY_NAME, "Processor Type: %ld Level: %ld Revision: %ld Count: %ld%s",
sysinfo.dwProcessorType,
sysinfo.wProcessorLevel,
sysinfo.wProcessorRevision,
sysinfo.dwNumberOfProcessors,
pSeparator);
pDDInfo += szTemp;
// write DD version
TCHAR szVersion[256] = __TEXT(""); /* Flawfinder: ignore */
HKEY hKey = 0;
RegOpenKeyEx(HKEY_LOCAL_MACHINE,
__TEXT("Software\Microsoft\DirectX"),
0, KEY_READ, &hKey);
if (hKey)
{
DWORD dwType = REG_SZ;
DWORD dwSize = sizeof(szVersion);
RegQueryValueEx(hKey, __TEXT("Version"), NULL, &dwType, (BYTE*)szVersion, &dwSize);
RegCloseKey(hKey);
}
SafeSprintf(szTemp, MAX_DISPLAY_NAME, "DirectDraw Version %s%s", szVersion, pSeparator);
pDDInfo += szTemp;
if (lpSurface)
{
// Get DD4* from the surface
void* pVoid = NULL;
IDirectDrawSurface2* lpSurface2 = NULL;
#if DIRECTDRAW_VERSION > 0x0500
IDirectDraw4* pDD4 = NULL;
IDirectDraw* pDD = NULL;
#endif //DIRECTDRAW_VERSION > 0x0500
DDDEVICEIDENTIFIER ddID;
memset(&ddID, 0, sizeof(ddID));
lpSurface->QueryInterface(IID_IDirectDrawSurface2, (void**)&lpSurface2);
if (lpSurface2)
{
lpSurface2->GetDDInterface(&pVoid);
lpSurface2->Release();
}
#if DIRECTDRAW_VERSION > 0x0500
if (pVoid)
((IUnknown*)pVoid)->QueryInterface(IID_IDirectDraw, (void**)&pDD);
if (pDD)
{
pDD->QueryInterface(IID_IDirectDraw4, (void **)&pDD4);
pDD->Release();
}
// Query for the driver descripton
if (pDD4)
{
pDD4->GetDeviceIdentifier(&ddID, DDGDI_GETHOSTIDENTIFIER);
pDD4->Release();
}
// DD4 not supportted (probably NT4)...use more drastic measures
else
#endif //DIRECTDRAW_VERSION > 0x0500
{
// Check if we are runnning NT
OSVERSIONINFO osVersion;
memset(&osVersion,0, sizeof(OSVERSIONINFO));
osVersion.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (GetVersionEx(&osVersion) && osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
char szChipType[MAXCHIPTYPE]; /* Flawfinder: ignore */
// Try to get WinNT device information
GetWinNTDeviceID (&ddID, szChipType);
}
}
// write DD driver
unsigned short data4 = ddID.guidDeviceIdentifier.Data4[0]<<8 |
ddID.guidDeviceIdentifier.Data4[1];
unsigned long data5 = ddID.guidDeviceIdentifier.Data4[2]<<24 |
ddID.guidDeviceIdentifier.Data4[3]<<16 |
ddID.guidDeviceIdentifier.Data4[4]<<8 |
ddID.guidDeviceIdentifier.Data4[5];
unsigned short data6 = ddID.guidDeviceIdentifier.Data4[6]<<8 |
ddID.guidDeviceIdentifier.Data4[7];
SafeSprintf(szTemp, MAX_DISPLAY_NAME,
"DirectDraw Driver: %s VendorID: %ld GUID {""%lx-%x-%x-%x-%lx%x""}%s",
ddID.szDescription,
ddID.dwVendorId,
ddID.guidDeviceIdentifier.Data1,
ddID.guidDeviceIdentifier.Data2,
ddID.guidDeviceIdentifier.Data3,
data4,
data5,
data6,
pSeparator);
pDDInfo += szTemp;
// write display properties
DDSURFACEDESC ddsd;
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
lpSurface->GetSurfaceDesc(&ddsd);
char fourCC[5] = {(char)(ddsd.ddpfPixelFormat.dwFourCC & 0x000000FF), /* Flawfinder: ignore */
((char)(ddsd.ddpfPixelFormat.dwFourCC & 0x0000FF00)>>8),
((char)(ddsd.ddpfPixelFormat.dwFourCC & 0x00FF0000)>>16),
(char)(ddsd.ddpfPixelFormat.dwFourCC>>24),
''};
SafeSprintf(szTemp, MAX_DISPLAY_NAME,
"DisplayMode: %s %s BackBuffers: %ld Width: %ld Height: %ld%s",
(ddsd.ddsCaps.dwCaps & DDSCAPS_OVERLAY) ? "Overlay" : "Offscreen",
fourCC,
(ddsd.dwFlags & DDSD_BACKBUFFERCOUNT) ? ddsd.dwBackBufferCount : 0,
ddsd.dwWidth,
ddsd.dwHeight,
pSeparator);
pDDInfo += szTemp;
}
BMI bmi;
memset(&bmi, 0, sizeof(bmi));
GetDisplayFormat(&bmi, NULL);
// write monitor properties
SafeSprintf(szTemp, MAX_DISPLAY_NAME,
"Screen Width %ld Height %ld BPP: %ld%s",
GetSystemMetrics(SM_CXSCREEN),
GetSystemMetrics(SM_CYSCREEN),
bmi.bmiHeader.biBitCount,
pSeparator);
pDDInfo += szTemp;
pszDDInfo = new char[pDDInfo.GetLength()+1];
if (pszDDInfo)
{
strncpy(pszDDInfo, pDDInfo, pDDInfo.GetLength()+1);
}
return pszDDInfo;
}
void DumpDDInfo(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpSurface, char *pFunction)
{
// A DirectDraw exception occured...bad bad bad
//HX_ASSERT(0);
// Serialize access to ddinfo.txt
if (g_ehandlerMutexCnt)
EnterCriticalSection(&g_ehandlerMutex);
// Write a file in the plugins dir
char szPath[256]; /* Flawfinder: ignore */
char szFilePerm[] = "r+";
int nEntries = 1;
char szTmp[MAX_DISPLAY_NAME]; /* Flawfinder: ignore */
char* pszDDInfo = NULL;
const char* pPath = NULL;
pPath = GetDLLAccessPath()->GetPath(DLLTYPE_PLUGIN);
SafeStrCpy(szPath, pPath, 256);
SafeStrCat(szPath, "ddinfo.txt", 256);
FILE *fp = fopen(szPath, "r"); /* Flawfinder: ignore */
if (fp)
{
const int nMaxChars = 2048;
int nMaxEntries = 50;
// check log entry count
fscanf(fp, "%s %d", szTmp, &nEntries);
// Limit log file entries to nMaxEntries
if (++nEntries > nMaxEntries)
{
char *pTime = NULL;
SYSTEMTIME time;
double dTime = 0;
double dOldTime = 3000*8760; // 3000 A.D. in hours
int nOldestOffset = 0;
int nLoc = 0;
char pBuffer[nMaxChars]; /* Flawfinder: ignore */
memset(&time, 0, sizeof(time));
// read first <cr>
fgets(pBuffer, nMaxChars, fp);
// Find the oldest entry if the file
while (!feof(fp))
{
nLoc = ftell(fp);
fgets(pBuffer, nMaxChars, fp);
// Find start of date
pTime = strstr(pBuffer, "Systime: ");
if (pTime)
{
// Read systime values for this log entry
pTime += 9;
sscanf(pTime, "%d %d %d %d %d %d %d %d",
&time.wYear, &time.wMonth, &time.wDayOfWeek,
&time.wDay, &time.wHour, &time.wMinute,
&time.wSecond, &time.wMilliseconds);
// Change date to hours for comparison
dTime = time.wYear*8760 +
time.wMonth*720 +
time.wDay*24 +
time.wHour +
time.wSecond/60.0 +
time.wMilliseconds/60000.0;
// Compare with the current oldest entry
if (dTime < dOldTime)
{
dOldTime = dTime;
nOldestOffset = nLoc;
}
}
}
// Remove oldest log entry: move contents of ddinfo to a temp file,
// delete ddinfo.txt, ren. temp file to ddinfo.txt.
pPath = GetDLLAccessPath()->GetPath(DLLTYPE_PLUGIN);
SafeStrCpy(szTmp, pPath, 256);
SafeStrCat(szTmp, "ddtemp.txt", 256);
FILE *fpTemp = fopen(szTmp, "w"); /* Flawfinder: ignore */
if (fpTemp)
{
fseek(fp, 0, SEEK_SET);
while (!feof(fp))
{
nLoc = ftell(fp);
if (fgets(pBuffer, nMaxChars, fp))
{
// Skip oldest entry
if (nLoc != nOldestOffset)
fputs(pBuffer, fpTemp);
}
}
}
fclose(fp);
if (fpTemp)
{
fclose(fpTemp);
DeleteFile(szPath);
rename(szTmp, szPath);
}
nEntries = nMaxEntries;
}
else
fclose(fp);
}
else
{
szFilePerm[0] = 'w';
szFilePerm[1] = '';
}
fp = fopen(szPath, szFilePerm); /* Flawfinder: ignore */
if (fp)
{
fseek(fp, 0, SEEK_SET);
fprintf(fp, "%s%dt ", "Entries ", nEntries);
fseek(fp, -1, SEEK_END);
pszDDInfo = CollectDDInfo(lpwd, lpSurface, pFunction, "t");
if (pszDDInfo)
{
fprintf(fp, "%s", pszDDInfo);
}
HX_VECTOR_DELETE(pszDDInfo);
fclose(fp);
}
if (g_ehandlerCount < g_ehandlerSilent)
{
// Need to throw error
if (lpwd && lpwd->pErrMsg)
{
lpwd->pErrMsg->Report(HXLOG_INFO, HXR_WINDRAW_EXCEPTION, 0,
szPath, NULL);
}
}
if (lpwd && lpwd->pErrMsg)
InterlockedIncrement(&g_ehandlerCount);
if (g_ehandlerMutexCnt)
LeaveCriticalSection(&g_ehandlerMutex);
}
/*
* Load system and/or bitmap palette.
*/
static int nSystemColors = 0; /* !0 when system palette is loaded */
static PALETTEENTRY SystemPalette [256];
static RGBQUAD SystemPaletteRGB[256];
static int SystemPaletteIndices [256];
static int LoadPalette (LPWINDRAW lpwd)
{
HDC hDC;
int i, n = 0;
/* get system palette first: */
if ((hDC = GetDC (NULL)) != NULL)
{
n = GetSystemPaletteEntries (hDC, 0, 256, SystemPalette);
ReleaseDC (NULL,hDC);
}
/* check if system palette is loaded: */
/* generate palette index: */
for (i=0; i<n; i++)
{
SystemPaletteIndices[i] = i;
SystemPaletteRGB[i].rgbBlue = SystemPalette[i].peBlue;
SystemPaletteRGB[i].rgbGreen = SystemPalette[i].peGreen;
SystemPaletteRGB[i].rgbRed = SystemPalette[i].peRed;
SystemPaletteRGB[i].rgbReserved = 0;
}
/* update color conversion tables: */
if (pfSetRGB8Palette)
{
(*pfSetRGB8Palette)(n, (unsigned long *)SystemPalette, SystemPaletteIndices);
}
/* indicate that palette is set: */
nSystemColors = n;
/* return # of colors loaded: */
return n;
}
HRESULT CreateDirectDrawPalette (LPWINDRAW pwd, LPDIRECTDRAWSURFACE pSurface)
{
HRESULT ddrval = E_FAIL;
if (!pSurface || !pwd)
{
return ddrval;
}
try
{
/* load system palette if necessary: */
if (nSystemColors) {
/* create DirectDraw palette object: */
if ((ddrval = IDirectDraw_CreatePalette (pwd->dd.lpDD2, DDPCAPS_8BIT, SystemPalette, &(pwd->dd.lpDDPal), NULL)) == DD_OK)
{
/* check if we can attach palette to a primary surface: */
if ((ddrval = IDirectDrawSurface_SetPalette (pSurface, pwd->dd.lpDDPal)) != DD_OK)
{
/* release it and return error code: */
IDirectDrawPalette_Release (pwd->dd.lpDDPal);
}
}
}
}
catch (...)
{
DumpDDInfo(pwd, pSurface, "CreateDirectDrawPalette");
ddrval = E_FAIL;
}
return ddrval;
}
/*
* Instructs color converters to use new destination palette:
*/
static void SetColorConverterPalette (PALETTEENTRY *pPalette, int l, int h)
{
int i, palIdx [256];
/* Instruct the color conversion library to use set of our
* "standard" colors ( [l,h] range) from the logical palette: */
for (i=l; i<h; i++) palIdx [i] = i;
if (pfSetRGB8Palette)
{
(*pfSetRGB8Palette)(h-l, (ULONG32*) (pPalette + l), palIdx + l);
}
}
/*
* Checks if system palette contains our colors.
*/
static BOOL HasPaletteChanged (LPWINDRAW lpwd)
{
PALETTEENTRY lppe [256], *lppe2;
register int i;
/* clear memory: */
memset(lppe, 0, sizeof(lppe));
/* retrive system palette: */
if ((lpwd->fMode & WINDRAW_DIRECTDRAW) && lpwd->dd.lpDDPal != NULL &&
/* use DirectDraw: */
IDirectDrawPalette_GetEntries (lpwd->dd.lpDDPal, 0, lpwd->loColor,
lpwd->hiColor - lpwd->loColor, lppe + lpwd->loColor) == DD_OK) {
; /* we're all done here */
} else {
/* use GDI: */
HDC hdc = GetDisplayDC (lpwd->lpszDisplayDevice);
GetSystemPaletteEntries (hdc, lpwd->loColor, lpwd->hiColor, lppe);
DeleteDC (hdc);
}
/* check if our colors are still there: */
lppe2 = lpwd->lgplDefaultPalette.palPalEntry;
for (i=lpwd->loColor; i<lpwd->hiColor; i++)
if (lppe [i].peGreen != lppe2 [i].peGreen ||
lppe [i].peBlue != lppe2 [i].peBlue ||
lppe [i].peRed != lppe2 [i].peRed) {
break;
}
return i == lpwd->hiColor;
}
/*
* Handles Windows palette change messages.
* Use:
* LRESULT WinDraw2_OnPaletteChange (LPWINDRAW lpwd, HWND hwnd, UINT Message);
* Input:
* lpwd - pointer to a WINDRAW structure we work with
* hwnd - with WM_PALETTECHANGED: identifies a window that CAUSED the
* palette to change; window that received a message otherwise
* Message - either WM_QUERYNEWPALETTE or WM_PALETTECHANGED
* Returns:
* TRUE, if we do realise our palette; FALSE, otherwise.
* Notes:
* If our window is foreground application then we should get first
* choice of colors in the system palette entries.
* We get best performance when our logical palette includes the
* standard VGA colors (at the beginning and end) otherwise GDI may have
* to map from our palette to the device palette while drawing.
*/
LRESULT WinDraw2_OnPaletteChange (LPWINDRAW lpwd, HWND hwnd, UINT Message)
{
if (lpwd && (lpwd->fMode & WINDRAW_OPENED) && hwnd == lpwd->hWnd &&
(Message == WM_QUERYNEWPALETTE || Message == WM_PALETTECHANGED))
{
if (LoadPalette(lpwd))
{
/* check if we are using DirectDraw: */
if (lpwd->fMode & WINDRAW_DIRECTDRAW)
{
if (FAILED(CreateDirectDrawPalette(lpwd, lpwd->dd.lpDDSPrimary)))
return 0;
}
if (lpwd->m_pSurfaceList)
{
for(CHXSimpleList::Iterator i = lpwd->m_pSurfaceList->Begin(); i!= lpwd->m_pSurfaceList->End(); ++i)
{
LPWINDRAWSURFACE lpwds = (LPWINDRAWSURFACE) *i;
if (lpwds)
{
if (lpwds->fMode & WINDRAWSURFACE_DIRECTDRAW)
{
CreateDirectDrawPalette(lpwd, lpwds->dd.lpDDSurface);
CreateDirectDrawPalette(lpwd, lpwds->dd.lpDDBackBuffer);
}
else
{
HBITMAP hOldBitmap;
for(int i = 0; i<(int)lpwds->dwBackBufferCount; i++)
{
if (lpwds->gdi.lpGDIBackBuffer[i])
{
hOldBitmap = (HBITMAP) SelectObject (lpwd->gdi.hMemoryDC, lpwds->gdi.lpGDIBackBuffer[i]->hBitMap);
SetDIBColorTable(lpwd->gdi.hMemoryDC, 0, nSystemColors, SystemPaletteRGB);
SelectObject(lpwd->gdi.hMemoryDC, hOldBitmap);
}
}
}
}
}
return (LRESULT) 1;
}
}
}
return 0;
}
/*
* When the window size changes we adjust our WINDRAW variables that
* contain the dimensions of the client rectangle for our window so
* that we come to render an image we will know whether to stretch.
*/
LRESULT WinDraw2_OnSize (LPWINDRAW lpwd, DWORD dwWidth, DWORD dwHeight)
{
/* check parameters: */
if (lpwd == NULL)
return (LRESULT) 0;
/* update client area size: */
lpwd->dwWindowWidth = dwWidth;
lpwd->dwWindowHeight = dwHeight;
/* ... */
return (LRESULT) 1;
}
/*
* This function handles the WM_CLOSE message:
*/
LRESULT WinDraw2_OnClose (LPWINDRAW lpwd)
{
/* check parameters: */
if (lpwd == NULL || lpwd->hWnd == NULL)
return (LRESULT) 0;
/* hide window before destroying it: */
ShowWindow (lpwd->hWnd, SW_HIDE);
return TRUE;
}
HRESULT CALLBACK
DisplayModeEnumeratorCallback(LPDDSURFACEDESC pddsd, LPVOID Context)
{
CHXSimpleList* pList = (CHXSimpleList*) Context;
CModesDesc* pDesc = new CModesDesc;
pDesc->m_nWidth = pddsd->dwWidth;
pDesc->m_nHeight = pddsd->dwHeight;
pDesc->m_nBitCount = pddsd->ddpfPixelFormat.dwRGBBitCount;
pDesc->m_fourCC = pddsd->ddpfPixelFormat.dwFourCC;
pList->AddTail(pDesc);
return DDENUMRET_OK;
}
/*
* Initialize WinDraw engine.
* Use:
* HRESULT WinDraw2_Open (LPWINDRAW lpwd, HWND hWnd, DWORD fMode,
* LPSTR lpszDisplay, LPBMI lpbiDisplayFormat);
* Input:
* lpwd - pointer to a WINDRAW structure to initialize
* hWnd - a window handle to use
* fMode - WinDraw mode to set (e.g. WINDRAW_FULLSCREEN)
* lpszDisplay - monitor to use (NULL or zero string = use all monitors)
* lpbiDisplayFormat - preferred display mode in full screen
* Returns:
* NOERROR if OK, or the last relevant DirectDraw error code, or E_FAIL.
*/
HRESULT WinDraw2_Open (LPWINDRAW lpwd, HWND hWnd, DWORD fMode,
LPSTR lpszDisplay, LPBMI lpbiDisplayFormat)
{
/* check parameters: */
if (lpwd == NULL || hWnd == NULL || (lpwd->fMode & WINDRAW_OPENED))
return E_INVALIDARG;
HRESULT hrFail = E_FAIL;
if (!g_ehandlerMutexCnt)
{
InitializeCriticalSection(&g_ehandlerMutex);
}
InterlockedIncrement(&g_ehandlerMutexCnt);
z_hHxColor = LoadLibrary("colorcvt.dll");
if (!z_hHxColor)
z_hHxColor = LoadLibrary("hxltcolor.dll");
if (z_hHxColor)
{
pfInitColorConverter = (INITCOLORCONVERTERFN) GetProcAddress(z_hHxColor,"InitColorConverter");
pfSetRGB8Palette = (SETRGB8PALETTEFN) GetProcAddress(z_hHxColor,"SetRGB8Palette");
}
/* initialize WinDraw structure: */
memset (lpwd, 0, sizeof (WINDRAW));
lpwd->hWnd = hWnd;
lpwd->m_pModesList = new CHXSimpleList;
lpwd->m_pSurfaceList = new CHXSimpleList;
lpwd->nSchedulerResolution = 0;
InitializeCriticalSection(&lpwd->csPrimary);
/* check if want to use DirectDraw: */
if (fMode & WINDRAW_DIRECTDRAW)
{
lpwd->fMode |= WINDRAW_DIRECTDRAW;
/* initialize DirectDraw objects: */
LPDIRECTDRAW pDirectDraw = NULL;
try
{
if (LoadDirectDraw (lpszDisplay, &pDirectDraw, & (lpwd->dd.hDD)) != NOERROR)
goto dd_fail;
}
catch (...)
{
DumpDDInfo(lpwd, NULL, "WinDraw2_Open");
goto dd_fail;
}
pDirectDraw->QueryInterface(IID_IDirectDraw2, (void**)&lpwd->dd.lpDD2);
pDirectDraw->Release();
pDirectDraw = 0;
/*
* DirectX 1.0 installed (e.g. boxes with the original (Aug 95) release of Win95).
* don't support that!
*/
if (!lpwd->dd.lpDD2)
{
goto dd_fail;
}
/* initialize our color conversion engine: */
if (pfInitColorConverter)
(*pfInitColorConverter)();
/* get display format: */
lpwd->lpszDisplayDevice = lpszDisplay;
lpwd->cidDisplayColor = CID_UNKNOWN;
if (GetDisplayFormat (&lpwd->bmiDisplayFormat, lpwd->lpszDisplayDevice) != NOERROR ||
(lpwd->cidDisplayColor = GetBitmapColor ((LPBITMAPINFO)&lpwd->bmiDisplayFormat)) == CID_UNKNOWN)
{
/* this is very bad... */
#ifdef _DEBUG
OutputDebugString ("WinDraw: cannot obtain display pixel format.n");
#endif
goto dd_fail;
}
/* find out what FourCC codes are supported */
lpwd->dd.lpDD2->GetFourCCCodes(&(lpwd->numCodes), lpwd->lpCodes);
if (lpwd->numCodes)
{
lpwd->lpCodes = (LPDWORD) malloc (lpwd->numCodes*4);
lpwd->lpCID = (LPDWORD) malloc (lpwd->numCodes*4);
lpwd->dd.lpDD2->GetFourCCCodes(&(lpwd->numCodes), lpwd->lpCodes);
for(unsigned int i = 0; i<lpwd->numCodes; i++)
{
lpwd->lpCID[i] = MapFourCCtoCID(lpwd->lpCodes[i]);
}
}
/* Get the device caps */
memset(&lpwd->dd.m_caps, 0, sizeof(DDCAPS));
lpwd->dd.m_caps.dwSize = sizeof(DDCAPS_DX3);
lpwd->dd.lpDD2->GetCaps(&(lpwd->dd.m_caps), 0);
/*
* If we have neither overlay nor streatching then we will use DibEngine (good call? time will tell)
*/
if (! ( (lpwd->dd.m_caps.dwCaps & DDCAPS_OVERLAY) || (lpwd->dd.m_caps.dwCaps & DDCAPS_BLTSTRETCH) ))
{
goto dd_fail;
}
/* set normal cooperative level */
if (DD_OK != lpwd->dd.lpDD2->SetCooperativeLevel(lpwd->hWnd, DDSCL_NORMAL))
{
goto dd_fail;
}
try
{
if (DD_OK == WindrawSurface_CreatePrimarySurface(lpwd))
{
/* DirectDraw profile/mode masks: */
DWORD dwOverlayMask, dwBltMask;
DDPIXELFORMAT ddpf;
/* color formats: */
int cidOut = CID_UNKNOWN;
/* get pixel format of the primary surface: */
memset (&ddpf, 0, sizeof (DDPIXELFORMAT));
ddpf.dwSize = sizeof (DDPIXELFORMAT);
ddpf.dwFlags = DDPF_RGB | DDPF_FOURCC;
if (lpwd->dd.lpDDSPrimary->GetPixelFormat(&ddpf) != DD_OK)
goto dd_fail;
/* convert it to our color ID: */
cidOut = GetDirectDrawColor (&ddpf);
if (cidOut < CID_RGB32 || cidOut > CID_RGB8)
goto dd_fail;
/* check if DirectDraw profile needs to be loaded: */
if (!lpddprofDirectDrawProfile || DDPDB_IsNewProfile ()) {
/* get DirectDraw device profile: */
lpwd->dd.lpDD2->QueryInterface(IID_IDirectDraw, (void**)&pDirectDraw);
HX_ASSERT(pDirectDraw);
lpddprofDirectDrawProfile = DDPDB_GetDeviceProfile(pDirectDraw);
pDirectDraw->Release();
pDirectDraw = 0;
}
/* get mode masks: */
dwOverlayMask = lpddprofDirectDrawProfile->fOverlays [cidOut-CID_RGB32];
dwBltMask = lpddprofDirectDrawProfile->fBlts [cidOut-CID_RGB32];
// if (dwOverlayMask == 0 || dwBltMask == 0)
/* We currently disable DirectDraw if bltMask is 0.
* Need to add support for selecting DirectDraw features based on
* the info in the database.
*/
if (dwOverlayMask == 0)
goto dd_fail;
/* Enum the display modes */
zm_DisplaySettings.GetSettings(lpwd->m_pModesList);
/*
* For SOME reason EnumDisplayModes is causing a number of cards to go CRAZY.
* So we now we call a function which calls enum display modes early and caches
* the results. For some reason this does not cause things to go INSANE. Who knows why.
*/
// lpwd->dd.lpDD2->EnumDisplayModes(0, NULL, lpwd->m_pModesList, DisplayModeEnumeratorCallback);
}
else
{
goto dd_fail;
}
}
catch(...)
{
DumpDDInfo(lpwd, lpwd->dd.lpDDSPrimary, "WinDraw2_Open");
goto dd_fail;
}
goto success;
dd_fail:
/* release DirectDraw library, if loaded: */
if (lpwd->dd.lpDD2 != NULL && lpwd->dd.hDD != NULL)
ReleaseDirectDraw(&(lpwd->dd.lpDD), &(lpwd->dd.lpDD2), & (lpwd->dd.hDD));
/* exit with error: */
return hrFail;
} else { /* use GDI: */
/* grab DCs: */
if ((lpwd->gdi.hDC = GetDC (lpwd->hWnd)) == NULL ||
(lpwd->gdi.hMemoryDC = CreateCompatibleDC (lpwd->gdi.hDC)) == NULL ||
(lpwd->gdi.hMemoryDC2 = CreateCompatibleDC (lpwd->gdi.hDC)) == NULL)
goto gdi_fail;
/* set default StretchBlt () mode: */
SetStretchBltMode (lpwd->gdi.hDC, COLORONCOLOR);
SetStretchBltMode (lpwd->gdi.hMemoryDC,COLORONCOLOR);
SetStretchBltMode (lpwd->gdi.hMemoryDC2,COLORONCOLOR);
/* get display format: */
lpwd->lpszDisplayDevice = lpszDisplay;
lpwd->cidDisplayColor = CID_UNKNOWN;
if (GetDisplayFormat (&lpwd->bmiDisplayFormat, lpwd->lpszDisplayDevice) != NOERROR ||
(lpwd->cidDisplayColor = GetBitmapColor ((LPBITMAPINFO)&lpwd->bmiDisplayFormat)) == CID_UNKNOWN) {
/* this is very bad... */
#ifdef _DEBUG
OutputDebugString ("WinDraw: cannot obtain display pixel format.n");
#endif
goto gdi_fail;
}
/* initialize our color conversion engine: */
if (pfInitColorConverter)
(*pfInitColorConverter)();
goto success;
/* something really bad has happened... */
gdi_fail:
/* delete palette: */
if (lpwd->gdi.hPalette) {
DeleteObject (lpwd->gdi.hPalette);
lpwd->gdi.hPalette = NULL;
}
/* release DCs, if taken: */
if (lpwd->gdi.hDC != NULL)
{
ReleaseDC (lpwd->hWnd, lpwd->gdi.hDC);
lpwd->gdi.hDC = NULL;
}
if (lpwd->gdi.hMemoryDC != NULL) {
DeleteDC (lpwd->gdi.hMemoryDC);
lpwd->gdi.hMemoryDC = NULL;
}
if (lpwd->gdi.hMemoryDC2 != NULL) {
DeleteDC (lpwd->gdi.hMemoryDC2);
lpwd->gdi.hMemoryDC2 = NULL;
}
/* exit with error: */
return E_FAIL;
}
success:
/* activate WinDraw & exit: */
lpwd->fMode |= WINDRAW_OPENED;
WinDraw2_OnPaletteChange(lpwd, lpwd->hWnd, WM_PALETTECHANGED);
return NOERROR;
}
void DeleteDisplayModes(LPWINDRAW lpwd)
{
CHXSimpleList::Iterator i;
if (!lpwd->m_pModesList || !lpwd->m_pModesList->GetCount())
return;
for(i=lpwd->m_pModesList->Begin(); i!= lpwd->m_pModesList->End(); ++i)
{
CModesDesc* pDesc = (CModesDesc*) *i;
HX_DELETE(pDesc);
}
lpwd->m_pModesList->RemoveAll();
}
/*
* Close WinDraw library.
* Use:
* HRESULT WinDrawClose (LPWINDRAW lpwd);
* Input:
* lpwd - pointer to a WINDRAW engine to deactivate
* Returns:
* NOERROR if OK, or E_FAIL.
*/
HRESULT WinDraw2_Close (LPWINDRAW lpwd)
{
/* check parameters: */
if (lpwd == NULL || !(lpwd->fMode & WINDRAW_OPENED))
// return E_INVALIDARG;
goto cleanup;
if (z_hHxColor)
{
FreeLibrary(z_hHxColor);
z_hHxColor = 0;
pfInitColorConverter = 0;
pfSetRGB8Palette = 0;
}
/* check mode: */
if (lpwd->fMode & WINDRAW_DIRECTDRAW)
{
free(lpwd->lpCodes);
free(lpwd->lpCID);
/*
* Release the Primary Surface
*/
if (lpwd->dd.lpDDSPrimary)
{
int rel = lpwd->dd.lpDDSPrimary->Release();
lpwd->dd.lpDDSPrimary = NULL;
}
/* release DirectDraw library, if loaded: */
if (lpwd->dd.lpDD2 != NULL && lpwd->dd.hDD != NULL)
ReleaseDirectDraw (&(lpwd->dd.lpDD), &(lpwd->dd.lpDD2), &(lpwd->dd.hDD));
}
else
{ /* GDI: */
/* delete palette: */
if (lpwd->gdi.hPalette)
{
DeleteObject (lpwd->gdi.hPalette);
lpwd->gdi.hPalette = NULL;
}
/* release DCs, if taken: */
if (lpwd->gdi.hDC != NULL)
{
ReleaseDC (lpwd->hWnd, lpwd->gdi.hDC);
lpwd->gdi.hDC = NULL;
}
if (lpwd->gdi.hMemoryDC != NULL)
{
DeleteDC (lpwd->gdi.hMemoryDC);
lpwd->gdi.hMemoryDC = NULL;
}
if (lpwd->gdi.hMemoryDC2 != NULL)
{
DeleteDC (lpwd->gdi.hMemoryDC2);
lpwd->gdi.hMemoryDC2 = NULL;
}
}
cleanup:
/* deactivate WinDraw & exit: */
lpwd->fMode = 0;
/* remove display mode data */
DeleteDisplayModes(lpwd);
HX_DELETE(lpwd->m_pModesList);
HX_DELETE(lpwd->m_pSurfaceList);
DeleteCriticalSection(&lpwd->csPrimary);
InterlockedDecrement(&g_ehandlerMutexCnt);
if (!g_ehandlerMutexCnt)
{
DeleteCriticalSection(&g_ehandlerMutex);
}
return NOERROR;
}
/*
* Get display/primary surface format.
* Use:
* HRESULT WinDraw2_GetDisplayFormat (LPWINDRAW lpwd, LPBMI lpbiDisplayFormat);
* Input:
* lpwd - pointer to a WINDRAW structure to initialize
* lpbiDisplayFormat - a structure to contain display format
* Returns:
* NOERROR if OK, or the last relevant DirectDraw error code, or E_FAIL.
*/
HRESULT WinDraw2_GetDisplayFormat (LPWINDRAW lpwd, LPBMI lpbiDisplayFormat)
{
int sz;
/* check parameters: */
if (lpwd == NULL || !(lpwd->fMode & WINDRAW_OPENED) ||
lpbiDisplayFormat == NULL)
return E_INVALIDARG;
/* check the size of BITMAPINFO structure to copy: */
sz = lpbiDisplayFormat->bmiHeader.biSize;
if (sz < (int)sizeof(BITMAPINFOHEADER) || sz > (int)lpwd->bmiDisplayFormat.bmiHeader.biSize)
sz = lpwd->bmiDisplayFormat.bmiHeader.biSize;
/* copy bitmap info: */
/* Since it seems that our convention was to set biSize to the sizeof
* BITMAPINFOHEADER instead of the actual size of the structure (which
* causes us to lose the color table of bit fields) we will use the size
* of the structure.
*/
// memcpy(lpbiDisplayFormat, &(lpwd->bmiDisplayFormat), sz);
GetDisplayFormat(&lpwd->bmiDisplayFormat, lpwd->lpszDisplayDevice);
memcpy(lpbiDisplayFormat, &(lpwd->bmiDisplayFormat), sizeof(BMI) ); /* Flawfinder: ignore */
return NOERROR;
}
/*
* GDISURFACE functions:
*/
#define hMEMORY ((HANDLE) 0xFFFFFFFF) /* says to open as memory file */
/*
* This function allocates a shared memory block for use by the source filter
* generating DIBs for us to render. The memory block is created in shared
* memory so that GDI doesn't have to copy the memory when we do a BitBlt
*/
static LPGDISURFACE GDISurface_Alloc (LPBITMAPINFO pbmi)
{
LPGDISURFACE lpGDISurface; /* pointer to a new GDISURFACE */
HANDLE hMapping; /* handle to mapped object */
HBITMAP hBitmap; /* DIB section bitmap handle */
BYTE *pBase; /* pointer to the actual image */
/* allocate a new GDISURFACE structure to use: */
lpGDISurface = (LPGDISURFACE)malloc (sizeof (GDISURFACE));
if (lpGDISurface != NULL) {
/* create a file mapping object and map into our address space: */
hMapping = CreateFileMapping (hMEMORY, NULL, PAGE_READWRITE, (DWORD) 0, pbmi->bmiHeader.biSizeImage, NULL);
if (hMapping != NULL) {
/* create a DIB section using given image format */
hBitmap = CreateDIBSection ((HDC) NULL, pbmi, DIB_RGB_COLORS, (VOID **) &pBase, hMapping, (DWORD) 0);
if (hBitmap != NULL && pBase != NULL) {
/* initialise the GDISURFACE structure: */
lpGDISurface->hBitMap = hBitmap;
lpGDISurface->hMapping = hMapping;
lpGDISurface->lpBase = pBase;
lpGDISurface->lpAlphaSurface = NULL;
lpGDISurface->hEmpty = CreateEvent(NULL, TRUE, TRUE, NULL);
/* lpGDISurface->PaletteVersion = PALETTE_VERSION; */
GetObject (hBitmap, sizeof (DIBSECTION), (VOID *)& (lpGDISurface->DibSection));
/* success: */
return lpGDISurface;
}
/* close file mapping... */
CloseHandle (hMapping);
}
/* free buffer: */
free (lpGDISurface);
}
return NULL;
}
/*
* Releases previously allocated GDI buffer.
* Main application should consider calling GdiFlush ();
* before releasing these buffers.
*/
static void GDISurface_Free (LPGDISURFACE lpGDISurface)
{
/* check pointer to a buffer structure to use: */
if (lpGDISurface != NULL) {
/* close dibsection: */
DeleteObject (lpGDISurface->hBitMap);
/* close file mapping: */
CloseHandle (lpGDISurface->hMapping);
/* close alpha channel */
free(lpGDISurface->lpAlphaSurface);
/* close event */
CloseHandle(lpGDISurface->hEmpty);
/* free buffer: */
free (lpGDISurface);
}
}
static BOOL GDISurface_AlphaBltIndirect(LPWINDRAW lpwd, LPGDISURFACE lpGDISurfaceDest,
LPGDISURFACE lpGDISurfaceSrc, LPRECT lpDestRect, LPRECT lpSrcRect)
{
#if 0
INT32 destX, destY;
INT32 destStride, srcStride, alphaStride;
UINT32 *srcBuf, *destBuf;
UCHAR *alphaBuf;
UCHAR alpha, invalpha;
UCHAR *pSrc, *pDest;
int destCID = GetBitmapColor((LPBITMAPINFO) &lpGDISurfaceDest->DibSection.dsBmih);
int srcCID = GetBitmapColor((LPBITMAPINFO) &lpGDISurfaceSrc->DibSection.dsBmih);
assert(destCID == srcCID); // not supported
switch (destCID)
{
case CID_RGB565:
case CID_RGB555:
destStride = (lpGDISurfaceDest->DibSection.dsBmih.biWidth - (lpDestRect->right - lpDestRect->left)) * 2;
srcStride = (lpGDISurfaceSrc->DibSection.dsBmih.biWidth - (lpSrcRect->right - lpSrcRect->left)) * 2;
srcBuf = (UINT32*)(lpGDISurfaceSrc->lpBase + ( (lpSrcRect->right - lpSrcRect->left) * lpSrcRect->top
+ lpSrcRect->left ) * 2);
destBuf = (UINT32*)(lpGDISurfaceDest->lpBase + ( (lpDestRect->right - lpDestRect->left) * lpDestRect->top
+ lpDestRect->left) *2);
break;
case CID_RGB32:
destStride = (lpGDISurfaceDest->DibSection.dsBmih.biWidth - (lpDestRect->right - lpDestRect->left)) * 4;
srcStride = (lpGDISurfaceSrc->DibSection.dsBmih.biWidth - (lpSrcRect->right - lpSrcRect->left)) * 4;
srcBuf = (UINT32*)(lpGDISurfaceSrc->lpBase + ( (lpSrcRect->right - lpSrcRect->left) * lpSrcRect->top
+ lpSrcRect->left ) *4);
destBuf = (UINT32*)(lpGDISurfaceDest->lpBase + ( (lpDestRect->right - lpDestRect->left) * lpDestRect->top
+ lpDestRect->left ) *4);
break;
case CID_RGB24:
break;
default:
assert(CID_NOTSUPPORTED);
}
alphaBuf = lpGDISurfaceSrc->lpAlphaSurface;
alphaStride = lpGDISurfaceDest->DibSection.dsBmih.biWidth - (lpSrcRect->right - lpSrcRect->left);
switch (destCID)
{
case CID_RGB32:
{
for (destY = lpDestRect->top; destY < lpDestRect->bottom; destY++ )
{
for (destX = lpDestRect->left;destX < lpDestRect->right;destX++, srcBuf++, destBuf++, alphaBuf++)
{
alpha = *alphaBuf>128 ? *alphaBuf + 1 : *alphaBuf;
invalpha = 256 - alpha;
*destBuf =
((((*srcBuf & 0x00ff0000) * alpha) >> 8 ) & 0x00ff0000) +
((((*destBuf & 0x00ff0000) * invalpha) >> 8 ) & 0x00ff0000) +
((((*srcBuf & 0x0000ff00) * alpha) >> 8 ) & 0x0000ff00) +
((((*destBuf & 0x0000ff00) * invalpha) >> 8 ) & 0x0000ff00) +
((((*srcBuf & 0x000000ff) * alpha) >> 8 ) & 0x000000ff) +
((((*destBuf & 0x000000ff) * invalpha) >> 8 ) & 0x000000ff);
}
destBuf += destStride;
srcBuf += srcStride;
alphaBuf += alphaStride;
}
break;
}
case CID_RGB24:
{
pSrc = lpGDISurfaceSrc->lpBase;
pDest = lpGDISurfaceDest->lpBase;
pDest += (lpGDISurfaceDest->DibSection.dsBmih.biWidth * (lpGDISurfaceDest->DibSection.dsBmih.biHeight - lpDestRect->top) + lpDestRect->left)* 3;
pSrc += (lpGDISurfaceSrc->DibSection.dsBmih.biWidth * (lpGDISurfaceSrc->DibSection.dsBmih.biHeight - lpSrcRect->top) + lpSrcRect->left)* 3;
for (destY = lpDestRect->top; destY < lpDestRect->bottom; destY++ )
{
for (destX = lpDestRect->left;destX < lpDestRect->right;destX++, alphaBuf++)
{
// alpha = *alphaBuf;
alpha = 128;
invalpha = 256 - alpha;
*pDest = (*pSrc * alpha) >> 8 + (*pDest * invalpha) >> 8;
pDest++; pSrc++;
*pDest = (*pSrc * alpha) >> 8 + (*pDest * invalpha) >> 8;
pDest++; pSrc++;
*pDest = (*pSrc * alpha) >> 8 + (*pDest * invalpha) >> 8;
pDest++; pSrc++;
}
pDest -= (lpGDISurfaceDest->DibSection.dsBmih.biWidth + (lpDestRect->right - lpDestRect->left))*3;
pSrc -= (lpGDISurfaceSrc->DibSection.dsBmih.biWidth + (lpSrcRect->right - lpSrcRect->left))*3;
alphaBuf +=alphaStride;
}
break;
}
case CID_RGB565:
case CID_RGB555:
{
/*
* The following bugs are plain (and all stem from the same problem)
*
* 1. If the dest/src rects are not both even.
* 2. If the width of the blt is not even
*
*/
for (destY = lpDestRect->top; destY < lpDestRect->bottom; destY++ )
{
for (destX = lpDestRect->left;destX < lpDestRect->right;destX+=2, srcBuf++, destBuf++, alphaBuf++)
{
alpha = *alphaBuf>128 ? *alphaBuf + 1 : *alphaBuf;
invalpha = 256 - alpha;
*destBuf =
((((*srcBuf & 0xf8000000) * alpha) >> 8 ) & 0xf8000000) +
((((*destBuf & 0xf8000000) * invalpha) >> 8 ) & 0xf8000000) +
((((*srcBuf & 0x07e00000) * alpha) >> 8 ) & 0x07e00000) +
((((*destBuf & 0x07e00000) * invalpha) >> 8 ) & 0x07e00000) +
((((*srcBuf & 0x001f0000) * alpha) >> 8 ) & 0x001f0000) +
((((*destBuf & 0x001f0000) * invalpha) >> 8 ) & 0x001f0000) +
((((*srcBuf & 0x0000f800) * alpha) >> 8 ) & 0x0000f800) +
((((*destBuf & 0x0000f800) * invalpha) >> 8 ) & 0x0000f800) +
((((*srcBuf & 0x000007e0) * alpha) >> 8 ) & 0x000007e0) +
((((*destBuf & 0x000007e0) * invalpha) >> 8 ) & 0x000007e0) +
((((*srcBuf & 0x0000001f) * alpha) >> 8 ) & 0x0000001f) +
((((*destBuf & 0x0000001f) * invalpha) >> 8 ) & 0x0000001f);
}
destBuf += destStride;
srcBuf += srcStride;
alphaBuf += alphaStride;
}
break;
}
}
#endif
return NOERROR;
}
/*
* Blits image data into the window.
* Use:
* BOOL DDSurface_BltIndirect(LPWINDRAW lpwd, LPGDISURFACE lpGDISurface,
* LPRECT lpSourceRect, LPRECT lpTargetRect)
* Input:
* lpwd - pointer to the WINDRAW structure
* lpDDSurfaceSrc - a structure containing DIBSECTION of image to blit
* lpDDSurfaceDst - a
* lpSrcRect - a source image region to blit
* lpDstRect - a target window region to fill with image
* Returns:
* TRUE, if success; FALSE, otherwise.
*/
static BOOL DDSurface_BltIndirect(
LPWINDRAW lpwd,
LPDIRECTDRAWSURFACE lpDDSurfaceDst,
LPDIRECTDRAWSURFACE lpDDSurfaceSrc,
LPRECT lpDstRect,
LPRECT lpSrcRect
)
{
/*
* this will currently only work if the two color formats are
* the same.
*/
/* set update mode: */
DWORD dwFlags = DDBLT_WAIT | DDBLT_ROP;
/* set effects: */
DDBLTFX ddBltFx;
ZeroMemory(&ddBltFx, sizeof(DDBLTFX));
ddBltFx.dwSize = sizeof (DDBLTFX);
ddBltFx.dwROP = SRCCOPY;
/* try to blit data from an offscreen surface: */
HRESULT retVal;
try
{
retVal = lpDDSurfaceDst->Blt(lpDstRect, lpDDSurfaceSrc, lpSrcRect, dwFlags, &ddBltFx);
}
catch(...)
{
char szTmp[256]; /* Flawfinder: ignore */
sprintf(szTmp, "DDSurface_BltIndirect srcRect %ld %ld %ld %ld dstRc %ld %ld %ld %ld", /* Flawfinder: ignore */
lpSrcRect->left, lpSrcRect->top, lpSrcRect->right, lpSrcRect->bottom,
lpDstRect->left, lpDstRect->top, lpDstRect->right, lpDstRect->bottom);
DumpDDInfo(lpwd, lpDDSurfaceDst, "DDSurface_BltIndirect");
retVal = HXR_FAIL;
}
return retVal;
}
/*
* Blits image data into the window.
* Use:
* BOOL GDISurface_BltIndirect(LPWINDRAW lpwd, LPGDISURFACE lpGDISurface,
* LPRECT lpSourceRect, LPRECT lpTargetRect)
* Input:
* lpwd - pointer to the WINDRAW structure
* lpGDISurface - a structure containing DIBSECTION of image to blit
* lpSourceRect - a source image region to blit
* lpTargetRect - a target window region to fill with image
* Returns:
* TRUE, if success; FALSE, otherwise.
*/
static BOOL GDISurface_BltIndirect(LPWINDRAW lpwd, LPGDISURFACE lpGDISurfaceDest,
LPGDISURFACE lpGDISurfaceSrc, LPRECT lpSourceRect, LPRECT lpTargetRect)
{
BOOL bResult; /* return value */
/* get sizes of source/destination rectangles: */
LONG lTargetWidth = lpTargetRect->right - lpTargetRect->left;
LONG lTargetHeight = lpTargetRect->bottom - lpTargetRect->top;
LONG lSourceWidth = lpSourceRect->right - lpSourceRect->left;
LONG lSourceHeight = lpSourceRect->bottom - lpSourceRect->top;
/* select bitmap to blit: */
HBITMAP hOldBitmap = (HBITMAP) SelectObject (lpwd->gdi.hMemoryDC, lpGDISurfaceDest->hBitMap);
HBITMAP hOldBitmap2 = (HBITMAP) SelectObject (lpwd->gdi.hMemoryDC2, lpGDISurfaceSrc->hBitMap);
if (lpGDISurfaceSrc->lpAlphaSurface)
{
return GDISurface_AlphaBltIndirect(lpwd, lpGDISurfaceDest, lpGDISurfaceSrc, lpTargetRect, lpSourceRect);
}
/* is the window the same size as the video: */
if (lTargetWidth == lSourceWidth && lTargetHeight == lSourceHeight)
{
/* put the image straight into the destination: */
bResult = BitBlt (
lpwd->gdi.hMemoryDC, /* target device HDC */
lpTargetRect->left, /* x sink position */
lpTargetRect->top, /* y sink position */
lTargetWidth, /* destination width */
lTargetHeight, /* destination height */
lpwd->gdi.hMemoryDC2, /* source device context */
lpSourceRect->left, /* x source position */
lpSourceRect->top, /* y source position */
SRCCOPY); /* simple copy */
}
else
{
/* stretch the image when copying to the destination: */
bResult = StretchBlt (
lpwd->gdi.hMemoryDC, /* target device HDC */
lpTargetRect->left, /* x sink position */
lpTargetRect->top, /* y sink position */
lTargetWidth, /* destination width */
lTargetHeight, /* destination height */
lpwd->gdi.hMemoryDC2, /* source device HDC */
lpSourceRect->left, /* x source position */
lpSourceRect->top, /* y source position */
lSourceWidth, /* source width */
lSourceHeight, /* source height */
SRCCOPY); /* simple copy */
}
/* put the old bitmap back into the device context so we don't leak */
SelectObject (lpwd->gdi.hMemoryDC, hOldBitmap);
SelectObject (lpwd->gdi.hMemoryDC2, hOldBitmap2);
/* pass the result of Bit/StretchBlt: */
return bResult;
}
/*
* Blits image data into the window.
* Use:
* BOOL DDSurface_Blt(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpDDSurface,
* LPRECT lpSourceRect, LPRECT lpTargetRect)
* Input:
* lpwd - pointer to the WINDRAW structure
* lpDDSurface - a structure containing DIBSECTION of image to blit
* lpSourceRect - a source image region to blit
* lpTargetRect - a target window region to fill with image
* Returns:
* TRUE, if success; FALSE, otherwise.
*/
BOOL DDSurface_Blt(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpDDSurface,
LPRECT lpSourceRect, LPRECT lpTargetRect)
{
/*
* this will currently only work if the two color formats are
* the same.
*/
/* set update mode: */
DWORD dwFlags = DDBLT_WAIT;
/* set effects: */
DDBLTFX ddBltFx;
ZeroMemory(&ddBltFx, sizeof(DDBLTFX));
ddBltFx.dwSize = sizeof (DDBLTFX);
ddBltFx.dwDDFX = DDBLTFX_NOTEARING;
//ddBltFx.dwROP = SRCCOPY;
/* try to blit data from an offscreen surface: */
RECT rect, destRect;
GetWindowRect(lpwd->hWnd, &rect);
destRect.left = lpTargetRect->left + rect.left;
destRect.right = lpTargetRect->right + rect.left;
destRect.top = lpTargetRect->top + rect.top;
destRect.bottom = lpTargetRect->bottom + rect.top;
/* handle monitor spanning blts */
RECT srcRect = *lpSourceRect;
double ratio;
UINT32 uHorzRes = xGetSystemMetrics(SM_CXVIRTUALSCREEN);
UINT32 uVertRes = xGetSystemMetrics(SM_CYVIRTUALSCREEN);
if (destRect.left < 0)
{
ratio = ((double)abs(destRect.left)) / (double)(destRect.right - destRect.left);
destRect.left = 0;
srcRect.left = (int) (((double) (lpSourceRect->right-lpSourceRect->left)) * ratio);
}
if (destRect.right> uHorzRes)
{
ratio = ((double)(destRect.right - uHorzRes)) / (double)(destRect.right - destRect.left);
destRect.right = uHorzRes;
srcRect.right = (int) (((double) (lpSourceRect->right-lpSourceRect->left)) * (1.0 - ratio));
}
if (destRect.top < 0)
{
ratio = ((double)abs(destRect.top)) / (double)(destRect.bottom - destRect.top);
destRect.top = 0;
srcRect.top = (int) (((double) (lpSourceRect->bottom-lpSourceRect->top)) * ratio);
}
if (destRect.bottom > uVertRes)
{
ratio = ((double)(destRect.bottom - uVertRes)) / (double)(destRect.bottom - destRect.top);
destRect.bottom = uVertRes;
srcRect.bottom = (int) (((double) (lpSourceRect->bottom-lpSourceRect->top)) * (1.0 - ratio));
}
#ifdef _CHECK_PERFORMANCE
static LARGE_INTEGER QueryPerformanceCounterResult = {0,0};
static LARGE_INTEGER QueryPerformanceFrequencyResult = {0,0};
QueryPerformanceFrequency(&QueryPerformanceFrequencyResult);
double frequency = ((double)QueryPerformanceFrequencyResult.LowPart + 4294967296.0*QueryPerformanceFrequencyResult.HighPart);
QueryPerformanceCounter(&QueryPerformanceCounterResult);
double startTime = ((double)QueryPerformanceCounterResult.LowPart + 4294967296.0*QueryPerformanceCounterResult.HighPart)/frequency;
#endif
#ifdef _CHECK_PERFORMANCE
FILE* f1 = fopen("c:\status.txt", "a+"); /* Flawfinder: ignore */
fprintf(f1, "DDSurface_Blt: (%d, %d, %d, %d) -> (%d, %d, %d, %d)n", lpSourceRect->left, lpSourceRect->top, lpSourceRect->right, lpSourceRect->bottom , lpTargetRect->left, lpTargetRect->top, lpTargetRect->right, lpTargetRect->bottom);
fclose(f1);
#endif
HRESULT retVal = E_FAIL;
EnterCriticalSection(&lpwd->csPrimary);
if (!lpwd->dd.lpDDSPrimary)
{
WindrawSurface_CreatePrimarySurface(lpwd);
}
if (lpwd->dd.lpDDSPrimary)
{
try
{
retVal = lpwd->dd.lpDDSPrimary->Blt(&destRect, lpDDSurface, &srcRect, dwFlags, &ddBltFx);
if (retVal != DD_OK)
{
lpDDSurface->Restore();
lpwd->dd.lpDDSPrimary->Restore();
retVal = lpwd->dd.lpDDSPrimary->Blt(&destRect, lpDDSurface, &srcRect, dwFlags, &ddBltFx);
}
}
catch (...)
{
char szTmp[256]; /* Flawfinder: ignore */
sprintf(szTmp, "DDSurface_Blt srcRect %ld %ld %ld %ld dstRc %ld %ld %ld %ld", /* Flawfinder: ignore */
lpSourceRect->left, lpSourceRect->top, lpSourceRect->right, lpSourceRect->bottom,
lpTargetRect->left, lpTargetRect->top, lpTargetRect->right, lpTargetRect->bottom);
DumpDDInfo(lpwd, lpDDSurface, szTmp);
retVal = HXR_FAIL;
}
}
LeaveCriticalSection(&lpwd->csPrimary);
#ifdef _CHECK_PERFORMANCE
QueryPerformanceCounter(&QueryPerformanceCounterResult);
double endTime = ((double)QueryPerformanceCounterResult.LowPart + 4294967296.0*QueryPerformanceCounterResult.HighPart)/frequency;
static UINT32 z_nANumTimes = 0;
static double z_fATotalTime;
static double z_fAAverageTime;
z_nANumTimes++;
z_fATotalTime += endTime - startTime;
z_fAAverageTime = z_fATotalTime / (double) z_nANumTimes;
if (! (z_nANumTimes % 25))
{
FILE* f1 = ::fopen("c:\performance.txt", "a+"); /* Flawfinder: ignore */
::fprintf(f1, "WINDRAW2 - ACTUAL BLT TIME: %d blts. Total CPU time: %f, CPU/Blt: %f -- Blt/s Second Max: %fn", z_nANumTimes, z_fATotalTime, z_fAAverageTime, 1.0/z_fAAverageTime);
fclose(f1);
}
#endif
return retVal;
}
/*
* Blits image data into the window.
* Use:
* BOOL GDISurface_Blt (LPWINDRAW lpwd, LPGDISURFACE lpGDISurface,
* LPRECT lpSourceRect, LPRECT lpTargetRect)
* Input:
* lpwd - pointer to the WINDRAW structure
* lpGDISurface - a structure containing DIBSECTION of image to blit
* lpSourceRect - a source image region to blit
* lpTargetRect - a target window region to fill with image
* Returns:
* TRUE, if success; FALSE, otherwise.
*/
static BOOL GDISurface_Blt (LPWINDRAW lpwd, LPGDISURFACE lpGDISurface,
LPRECT lpSourceRect, LPRECT lpTargetRect)
{
BOOL bResult; /* return value */
HBITMAP hOldBitmap; /* store the old bitmap */
/* get sizes of source/destination rectangles: */
LONG lTargetWidth = lpTargetRect->right - lpTargetRect->left;
LONG lTargetHeight = lpTargetRect->bottom - lpTargetRect->top;
LONG lSourceWidth = lpSourceRect->right - lpSourceRect->left;
LONG lSourceHeight = lpSourceRect->bottom - lpSourceRect->top;
/* select bitmap to blit: */
hOldBitmap = (HBITMAP) SelectObject (lpwd->gdi.hMemoryDC, lpGDISurface->hBitMap);
if (lpGDISurface->DibSection.dsBmih.biBitCount <= 8)
{
SetDIBColorTable(lpwd->gdi.hMemoryDC, 0, nSystemColors, SystemPaletteRGB);
}
/* is the window the same size as the video: */
if (lTargetWidth == lSourceWidth && lTargetHeight == lSourceHeight) {
/* put the image straight into the window: */
bResult = BitBlt (
lpwd->gdi.hDC, /* target device HDC */
lpTargetRect->left, /* x sink position */
lpTargetRect->top, /* y sink position */
lTargetWidth, /* destination width */
lTargetHeight, /* destination height */
lpwd->gdi.hMemoryDC, /* source device context */
lpSourceRect->left, /* x source position */
lpSourceRect->top, /* y source position */
SRCCOPY); /* simple copy */
} else {
/* stretch the image when copying to the window: */
bResult = StretchBlt (
lpwd->gdi.hDC, /* target device HDC */
lpTargetRect->left, /* x sink position */
lpTargetRect->top, /* y sink position */
lTargetWidth, /* destination width */
lTargetHeight, /* destination height */
lpwd->gdi.hMemoryDC, /* source device HDC */
lpSourceRect->left, /* x source position */
lpSourceRect->top, /* y source position */
lSourceWidth, /* source width */
lSourceHeight, /* source height */
SRCCOPY); /* simple copy */
}
/* put the old bitmap back into the device context so we don't leak */
SelectObject (lpwd->gdi.hMemoryDC, hOldBitmap);
/* pass the result of Bit/StretchBlt: */
return bResult;
}
/*
* Creates a new DD surface to be used for image data.
* Use:
* HRESULT WinDraw2_CreateDDSurface(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds,
* LPBMI lpImageFormat, DWORD fSurfaceType, int nBackBuffers, DWORD dwCKey);
* Input:
* lpwd - pointer to a base WINDRAW structure
* lpwds - pointer to a WINDRAWSURFACE structure to initialize
* lpImageFormat - pointer to BITMAPINFO structure describing image format
* fSurfaceType - combination of desired properties for a surface
* nBackBuffers - number of flippable backbuffers to allocate for this surface
* dwCKey - a color key to use (if transparent surface)
* Returns:
* NOERROR if OK, or the last relevant DirectDraw error code, or E_FAIL.
*/
HRESULT WinDraw2_CreateDDSurface (LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds,
LPBMI lpImageFormat, DWORD fSurfaceType, int nBackBuffers, DWORD dwCKey)
{
/*
* Are we in windraw Mode?
*/
if (!(lpwd->fMode & WINDRAW_DIRECTDRAW))
return E_INVALIDARG;
/* Is the color format supported by direct draw? */
unsigned int surfaceCID = GetBitmapColor((LPBITMAPINFO) lpImageFormat);
int directDrawSupported = 0;
for(unsigned int i = 0; i<lpwd->numCodes; i++)
{
if (surfaceCID == lpwd->lpCID[i])
{
directDrawSupported = 1;
break;
}
}
/*
if (!IsGDI(lpwds->cidSurfaceColor) && !directDrawSupported)
return E_FAIL;
*/
/* Create the surface */
DDSURFACEDESC ddsd;
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof (DDSURFACEDESC);
ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
ddsd.dwWidth = lpImageFormat->bmiHeader.biWidth;
ddsd.dwHeight = lpImageFormat->bmiHeader.biHeight;
if (IsYUV(surfaceCID))
{
ddsd.dwFlags |= DDSD_PIXELFORMAT;
ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
SetDirectDrawColor(&ddsd.ddpfPixelFormat, surfaceCID);
}
/*
* Which type of surface was requested?
*/
if (fSurfaceType & WINDRAWSURFACE_OVERLAY)
{
ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY;
if (nBackBuffers)
{
ddsd.dwFlags |= DDSD_BACKBUFFERCOUNT;
ddsd.dwBackBufferCount = nBackBuffers;
ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_FLIP | DDSCAPS_COMPLEX;
}
}
else
{
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
}
/*
* Which type of memory do you want?
*/
if (fSurfaceType & WINDRAWSURFACE_VIDEOMEMORY)
{
ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
}
else if (fSurfaceType & WINDRAWSURFACE_NONLOCALVIDMEM)
{
ddsd.ddsCaps.dwCaps |= DDSCAPS_NONLOCALVIDMEM;
}
// do not specify memory type for WINDRAWSURFACE_DEFAULTMEMORY
else if (!(fSurfaceType & WINDRAWSURFACE_DEFAULTMEMORY))
{
ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
}
int res;
try
{
res = lpwd->dd.lpDD2->CreateSurface(&ddsd, &lpwds->dd.lpDDSurface, NULL);
}
catch (...)
{
char szTmp[256]; /* Flawfinder: ignore */
sprintf(szTmp, "WinDraw2_CreateDDSurface w %ld h %ld cid %ld bb %ld caps %lx", /* Flawfinder: ignore */
ddsd.dwWidth, ddsd.dwHeight, surfaceCID, nBackBuffers, ddsd.ddsCaps.dwCaps);
DumpDDInfo(lpwd, lpwds->dd.lpDDSurface, szTmp);
res = HXR_FAIL;
}
if (DD_OK != res)
{
lpwds->dd.lpDDSurface = NULL;
return E_FAIL;
}
lpwds->dwBackBufferCount = nBackBuffers;
lpwds->fMode = WINDRAWSURFACE_OPENED | fSurfaceType;
lpwds->cidSurfaceColor = surfaceCID;
memcpy(&lpwds->bmiSurfaceFormat, lpImageFormat, sizeof(BMI)); /* Flawfinder: ignore */
/* check to see if we have an attached surface */
lpwds->dd.lpDDBackBuffer = NULL; /* just in case !! */
if (nBackBuffers)
{
DDSCAPS ddscaps;
ddscaps.dwCaps = DDSCAPS_BACKBUFFER;
// Build flipping chain - set surfaces
lpwds->dd.lpChain = new ENUMSURFACE[nBackBuffers+1];
lpwds->dwFrontBuffer = 0;
lpwds->dwNextBuffer = 1;
lpwds->hOverlayIndexMutex = CreateMutex(NULL, FALSE, NULL);
lpwds->hOverlayMutex = CreateMutex(NULL, FALSE, NULL);
lpwds->dd.hAbort = CreateEvent(NULL, TRUE, FALSE, NULL);
lpwds->dd.lpChain[0].lpSurface = lpwds->dd.lpDDSurface;
lpwds->dd.lpDDSurface->GetAttachedSurface(&ddscaps, &lpwds->dd.lpDDBackBuffer);
lpwds->dd.lpDDBackBuffer->Release();
if (nBackBuffers > 1)
{
for (int i=1; i<nBackBuffers+1; i++)
{
lpwds->dd.lpChain[i-1].lpSurface->EnumAttachedSurfaces((void*)&lpwds->dd.lpChain[i].lpSurface, EnumSurfacesCallback);
}
}
else
{
lpwds->dd.lpChain[1].lpSurface = lpwds->dd.lpDDBackBuffer;
}
// Build flipping chain - set hw mem locations
for (int i=0; i<nBackBuffers+1; i++)
{
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
lpwds->dd.lpChain[i].hEmpty = CreateEvent(NULL, TRUE, TRUE, NULL);
lpwds->dd.lpChain[i].pHwMemBuffer = NULL;
lpwds->dd.lpChain[i].dTimeAvailable = 0.0;
}
}
lpwd->m_pSurfaceList->AddTail(lpwds);
WinDraw2_OnPaletteChange(lpwd, lpwd->hWnd, WM_PALETTECHANGED);
// Store the default cc values
memset(&lpwds->dd.ddcc, 0, sizeof(lpwds->dd.ddcc));
lpwds->dd.ddcc.dwSize = sizeof(lpwds->dd.ddcc);
IDirectDrawColorControl *pcc = NULL;
res = NOERROR;
try
{
lpwds->dd.lpDDSurface->QueryInterface(IID_IDirectDrawColorControl, (void**)&pcc);
if (pcc)
{
pcc->GetColorControls(&lpwds->dd.ddcc);
pcc->Release();
}
}
catch (...)
{
char szTmp[256]; /* Flawfinder: ignore */
sprintf(szTmp, "WinDraw2_CreateDDSurface w %ld h %ld cid %ld bb %ld caps %lx", /* Flawfinder: ignore */
ddsd.dwWidth, ddsd.dwHeight, surfaceCID, nBackBuffers, ddsd.ddsCaps.dwCaps);
DumpDDInfo(lpwd, lpwds->dd.lpDDSurface, szTmp);
HX_RELEASE(pcc);
memset(&lpwds->dd.ddcc, 0, sizeof(lpwds->dd.ddcc));
}
return res;
}
HRESULT WinDraw2_SetColorKey (LPWINDRAW lpwd, DWORD dwLowColor, DWORD dwHighColor)
{
HRESULT hr = E_FAIL;
if (lpwd == NULL)
{
HX_ASSERT(0);
return E_INVALIDARG;
}
if (lpwd->fMode & WINDRAW_DIRECTDRAW)
{
DDCOLORKEY ddColorKey;
/* convert color key values: */
ddColorKey.dwColorSpaceLowValue = dwLowColor;
ddColorKey.dwColorSpaceHighValue = dwHighColor;
EnterCriticalSection(&lpwd->csPrimary);
/* set color key: */
if (lpwd->dd.lpDDSPrimary)
{
try
{
hr = lpwd->dd.lpDDSPrimary->SetColorKey(DDCKEY_DESTOVERLAY, &ddColorKey);
}
catch(...)
{
DumpDDInfo(lpwd, lpwd->dd.lpDDSPrimary, "WinDraw2_SetColorKey");
hr = HXR_FAIL;
}
}
LeaveCriticalSection(&lpwd->csPrimary);
}
return hr;
}
HRESULT WinDraw2_SetOverlayPosition(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds, UINT32 x, UINT32 y)
{
HRESULT hr = E_FAIL;
if (lpwd == NULL)
{
HX_ASSERT(0);
return E_INVALIDARG;
}
if (lpwds->fMode & WINDRAWSURFACE_OPENED && lpwds->fMode & WINDRAWSURFACE_OVERLAY)
{
try
{
hr = lpwds->dd.lpDDSurface->SetOverlayPosition(x,y);
}
catch(...)
{
DumpDDInfo(lpwd, lpwds->dd.lpDDSurface, "WinDraw2_SetOverlayPosition");
hr = HXR_FAIL;
}
}
return hr;
}
HRESULT WinDraw2_UpdateOverlay(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds, RECT* pDestRect, RECT* pSrcRect, DWORD flags)
{
// {
// char szBuff[256];
// sprintf( szBuff,"UpdateOverlay src (%d, %d)-(%d, %d) dest(%d, %d)-(%d, %d) flags: %pn",
// pSrcRect->left,
// pSrcRect->top,
// pSrcRect->right,
// pSrcRect->bottom,
// pDestRect->left,
// pDestRect->top,
// pDestRect->right,
// pDestRect->bottom,
// flags
// );
// _DumpString(szBuff);
// }
if ((lpwd == NULL) | (lpwds == NULL))
{
HX_ASSERT(0);
return E_INVALIDARG;
}
if (lpwds->fMode & WINDRAWSURFACE_OPENED && lpwds->fMode & WINDRAWSURFACE_OVERLAY)
{
EnterCriticalSection(&lpwd->csPrimary);
HRESULT res;
try
{
if (lpwds->dd.lpDDSurface)
{
res = lpwds->dd.lpDDSurface->UpdateOverlay(pSrcRect, lpwd->dd.lpDDSPrimary, pDestRect, flags, NULL);
if (DDERR_SURFACELOST == res)
{
res = RestoreSurfaces(lpwd, lpwds);
if (res == DD_OK)
{
lpwds->dd.lpDDSurface->UpdateOverlay(pSrcRect, lpwd->dd.lpDDSPrimary, pDestRect, flags, NULL);
// Let caller know we lost our surfaces
res = DDERR_SURFACELOST;
}
}
}
}
catch(...)
{
char szTmp[256]; /* Flawfinder: ignore */
sprintf(szTmp, "WinDraw2_UpdateOverlay srcRect %ld %ld %ld %ld dstRc %ld %ld %ld %ld", /* Flawfinder: ignore */
pSrcRect->left, pSrcRect->top, pSrcRect->right, pSrcRect->bottom,
pDestRect->left, pDestRect->top, pDestRect->right, pDestRect->bottom);
DumpDDInfo(lpwd, lpwds->dd.lpDDSurface, szTmp);
res = HXR_FAIL;
}
LeaveCriticalSection(&lpwd->csPrimary);
return res;
}
return E_FAIL;
}
HRESULT WinDraw2_GetOverlayPosition(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds, POINT* pLocation)
{
HRESULT hr = E_FAIL;
if ((lpwd == NULL) | (lpwds == NULL))
{
HX_ASSERT(0);
return E_INVALIDARG;
}
if (lpwds->fMode & WINDRAWSURFACE_OPENED && lpwds->fMode & WINDRAWSURFACE_OVERLAY)
{
try
{
hr = lpwds->dd.lpDDSurface->GetOverlayPosition((LONG*) &pLocation->x, (LONG*) &pLocation->y);
}
catch(...)
{
DumpDDInfo(lpwd, lpwds->dd.lpDDSurface, "WinDraw2_GetOverlayPosition");
hr = HXR_FAIL;
}
}
return hr;
}
BOOL WinDraw2_IsSurfaceVisible(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds)
{
if ((lpwd == NULL) | (lpwds == NULL))
{
HX_ASSERT(0);
return E_INVALIDARG;
}
if (lpwds->fMode & WINDRAWSURFACE_OPENED &&
lpwds->fMode & WINDRAWSURFACE_OVERLAY &&
lpwds->dd.lpDDSurface)
{
DDSCAPS ddcaps;
memset(&ddcaps, 0, sizeof(DDSCAPS));
try
{
lpwds->dd.lpDDSurface->GetCaps(&ddcaps);
}
catch(...)
{
DumpDDInfo(lpwd, lpwds->dd.lpDDSurface, "WinDraw2_IsSurfaceVisible");
return FALSE;
}
if (DDSCAPS_VISIBLE & ddcaps.dwCaps)
{
return TRUE;
}
}
return FALSE;
}
BOOL WinDraw2_IsDDAvailable(LPWINDRAW lpwd)
{
if (lpwd &&
lpwd->fMode & WINDRAW_OPENED &&
lpwd->fMode & WINDRAW_DIRECTDRAW &&
lpwd->dd.lpDD2)
{
BOOL bRet = TRUE;
#if DIRECTDRAW_VERSION > 0x0500
IDirectDraw4 *pDD4 = NULL;
lpwd->dd.lpDD2->QueryInterface(IID_IDirectDraw4, (void**)&pDD4);
// First, check if another app has DD in exclusive mode
if (pDD4)
{
try
{
HRESULT hr = pDD4->TestCooperativeLevel();
bRet = !(hr == DDERR_EXCLUSIVEMODEALREADYSET);
}
catch(...)
{
DumpDDInfo(lpwd, lpwd->dd.lpDDSPrimary, "WinDraw2_IsDDAvailable");
bRet = TRUE;
}
pDD4->Release();
}
#endif //DIRECTDRAW_VERSION > 0x0500
// Check if we have hardware assisted blitting
if (bRet)
{
UINT32 ulCaps = 0,
ulTemp;
if (HXR_OK == Windraw_GetCaps(lpwd, &ulCaps, &ulTemp, &ulTemp))
bRet = (ulCaps & HX_OVERLAY | ulCaps & HX_BLTFOURCC);
}
return bRet;
}
return FALSE;
}
/*
* Creates a new GDI surface to be used for image data.
* Use:
* HRESULT WinDraw2_CreateGDISurface(LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds,
* LPBMI lpImageFormat, DWORD fSurfaceType, int nBackBuffers, DWORD dwCKey);
* Input:
* lpwd - pointer to a base WINDRAW structure
* lpwds - pointer to a WINDRAWSURFACE structure to initialize
* lpImageFormat - pointer to BITMAPINFO structure describing image format
* fSurfaceType - combination of desired properties for a surface
* nBackBuffers - number of flippable backbuffers to allocate for this surface
* dwCKey - a color key to use (if transparent surface)
* Returns:
* NOERROR if OK, or the last relevant DirectDraw error code, or E_FAIL.
*/
HRESULT WinDraw2_CreateGDISurface (LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds,
LPBMI lpImageFormat, DWORD fSurfaceType, int nBackBuffers, DWORD dwCKey)
{
int i;
if (lpwd->fMode & WINDRAW_DIRECTDRAW)
return E_INVALIDARG;
/* check if surface of given color format can be created: */
if (!IsGDI(lpwds->cidSurfaceColor))
return E_FAIL;
/* allocate GDI surfaces: */
for (i=0; i<=(int)lpwds->dwBackBufferCount; i++)
{
LPGDISURFACE lpgdis;
/* allocate a new surface: */
if ((lpgdis = GDISurface_Alloc ((LPBITMAPINFO)lpImageFormat)) == NULL)
goto release_buffers;
/* store pointer to a new surface */
lpwds->gdi.lpGDIBackBuffer [i] = lpgdis;
}
/* store surface parameters & exit: */
lpwds->fMode |= WINDRAWSURFACE_OPENED;
lpwds->gdi.lPitch = GetBitmapPitch ((LPBITMAPINFO)lpImageFormat);
lpwd->m_pSurfaceList->AddTail(lpwds);
WinDraw2_OnPaletteChange(lpwd, lpwd->hWnd, WM_PALETTECHANGED);
return NOERROR;
release_buffers:
/* release GDI buffers: */
for ( i--; i>=0; i--)
{
if (lpwds->gdi.lpGDIBackBuffer [i] != NULL)
{
GDISurface_Free(lpwds->gdi.lpGDIBackBuffer [i]);
lpwds->gdi.lpGDIBackBuffer [i] = NULL;
}
}
return E_FAIL;
}
/*
* Creates a new surface to be used for image data.
* Use:
* HRESULT WinDraw2_CreateSurface (LPWINDRAW lpwd, LPWINDRAWSURFACE lpwds,
* LPBMI lpImageFormat, DWORD fSurfaceType, int nBackBuffers, DWORD dwCKey);
* Input:
* lpwd - pointer to a base WINDRAW structure
* lpwds - pointer to a WINDRAWSURFACE structure to initialize
* lpImageFormat - pointer to BITMAPINFO structure describing image format
* fSurfaceType - combination of desired properties for a surface
* nBackBuffers - number of flippable backbuffers to allocate for this surface
* dwCKey - a color key to use (if transparent surface)
* Returns:
* NOERROR if OK, or the last relevant DirectDraw error code, or E_FAIL.