diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xwin/winengine.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/xwin/winengine.c | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xwin/winengine.c b/nx-X11/programs/Xserver/hw/xwin/winengine.c new file mode 100644 index 000000000..f0bc671e2 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xwin/winengine.c @@ -0,0 +1,336 @@ +/* + *Copyright (C) 2001-2004 Harold L Hunt II All Rights Reserved. + * + *Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + *"Software"), to deal in the Software without restriction, including + *without limitation the rights to use, copy, modify, merge, publish, + *distribute, sublicense, and/or sell copies of the Software, and to + *permit persons to whom the Software is furnished to do so, subject to + *the following conditions: + * + *The above copyright notice and this permission notice shall be + *included in all copies or substantial portions of the Software. + * + *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR + *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + *Except as contained in this notice, the name of Harold L Hunt II + *shall not be used in advertising or otherwise to promote the sale, use + *or other dealings in this Software without prior written authorization + *from Harold L Hunt II. + * + * Authors: Harold L Hunt II + */ + +#ifdef HAVE_XWIN_CONFIG_H +#include <xwin-config.h> +#endif +#include "win.h" +#include "winmsg.h" + + +/* + * External global variables + */ + +extern const GUID _IID_IDirectDraw4; + + +/* + * Detect engines supported by current Windows version + * DirectDraw version and hardware + */ + +void +winDetectSupportedEngines () +{ + OSVERSIONINFO osvi; + + /* Initialize the engine support flags */ + g_dwEnginesSupported = WIN_SERVER_SHADOW_GDI; + +#ifdef XWIN_NATIVEGDI + g_dwEnginesSupported |= WIN_SERVER_NATIVE_GDI; +#endif + + /* Get operating system version information */ + ZeroMemory (&osvi, sizeof (osvi)); + osvi.dwOSVersionInfoSize = sizeof (osvi); + GetVersionEx (&osvi); + + /* Branch on platform ID */ + switch (osvi.dwPlatformId) + { + case VER_PLATFORM_WIN32_NT: + /* Engine 4 is supported on NT only */ + winErrorFVerb (2, "winDetectSupportedEngines - Windows NT/2000/XP\n"); + break; + + case VER_PLATFORM_WIN32_WINDOWS: + /* Engine 4 is supported on NT only */ + winErrorFVerb (2, "winDetectSupportedEngines - Windows 95/98/Me\n"); + break; + } + + /* Do we have DirectDraw? */ + if (g_hmodDirectDraw != NULL) + { + LPDIRECTDRAW lpdd = NULL; + LPDIRECTDRAW4 lpdd4 = NULL; + HRESULT ddrval; + + /* Was the DirectDrawCreate function found? */ + if (g_fpDirectDrawCreate == NULL) + { + /* No DirectDraw support */ + return; + } + + /* DirectDrawCreate exists, try to call it */ + /* Create a DirectDraw object, store the address at lpdd */ + ddrval = (*g_fpDirectDrawCreate) (NULL, + (void**) &lpdd, + NULL); + if (FAILED (ddrval)) + { + /* No DirectDraw support */ + winErrorFVerb (2, "winDetectSupportedEngines - DirectDraw not installed\n"); + return; + } + else + { + /* We have DirectDraw */ + winErrorFVerb (2, "winDetectSupportedEngines - DirectDraw installed\n"); + g_dwEnginesSupported |= WIN_SERVER_SHADOW_DD; + +#ifdef XWIN_PRIMARYFB + /* Allow PrimaryDD engine if NT */ + if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) + { + g_dwEnginesSupported |= WIN_SERVER_PRIMARY_DD; + winErrorFVerb (2, "winDetectSupportedEngines - Allowing PrimaryDD\n"); + } +#endif + } + + /* Try to query for DirectDraw4 interface */ + ddrval = IDirectDraw_QueryInterface (lpdd, + &IID_IDirectDraw4, + (LPVOID*) &lpdd4); + if (SUCCEEDED (ddrval)) + { + /* We have DirectDraw4 */ + winErrorFVerb (2, "winDetectSupportedEngines - DirectDraw4 installed\n"); + g_dwEnginesSupported |= WIN_SERVER_SHADOW_DDNL; + } + + /* Cleanup DirectDraw interfaces */ + if (lpdd4 != NULL) + IDirectDraw_Release (lpdd4); + if (lpdd != NULL) + IDirectDraw_Release (lpdd); + } + + winErrorFVerb (2, "winDetectSupportedEngines - Returning, supported engines %08x\n", + (unsigned int) g_dwEnginesSupported); +} + + +/* + * Set the engine type, depending on the engines + * supported for this screen, and whether the user + * suggested an engine type + */ + +Bool +winSetEngine (ScreenPtr pScreen) +{ + winScreenPriv(pScreen); + winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; + HDC hdc; + DWORD dwBPP; + + /* Get a DC */ + hdc = GetDC (NULL); + if (hdc == NULL) + { + ErrorF ("winSetEngine - Couldn't get an HDC\n"); + return FALSE; + } + + /* + * pScreenInfo->dwBPP may be 0 to indicate that the current screen + * depth is to be used. Thus, we must query for the current display + * depth here. + */ + dwBPP = GetDeviceCaps (hdc, BITSPIXEL); + + /* Release the DC */ + ReleaseDC (NULL, hdc); + hdc = NULL; + + /* ShadowGDI is the only engine that supports windowed PseudoColor */ + if (dwBPP == 8 && !pScreenInfo->fFullScreen) + { + winErrorFVerb (2, "winSetEngine - Windowed && PseudoColor => ShadowGDI\n"); + pScreenInfo->dwEngine = WIN_SERVER_SHADOW_GDI; + + /* Set engine function pointers */ + winSetEngineFunctionsShadowGDI (pScreen); + return TRUE; + } + + /* ShadowGDI is the only engine that supports Multi Window Mode */ + if ( +#ifdef XWIN_MULTIWINDOWEXTWM + pScreenInfo->fMWExtWM +#else + FALSE +#endif +#ifdef XWIN_MULTIWINDOW + || pScreenInfo->fMultiWindow +#else + || FALSE +#endif + ) + { + winErrorFVerb (2, "winSetEngine - Multi Window or Rootless => ShadowGDI\n"); + pScreenInfo->dwEngine = WIN_SERVER_SHADOW_GDI; + + /* Set engine function pointers */ + winSetEngineFunctionsShadowGDI (pScreen); + return TRUE; + } + + /* If the user's choice is supported, we'll use that */ + if (g_dwEnginesSupported & pScreenInfo->dwEnginePreferred) + { + winErrorFVerb (2, "winSetEngine - Using user's preference: %d\n", + (int) pScreenInfo->dwEnginePreferred); + pScreenInfo->dwEngine = pScreenInfo->dwEnginePreferred; + + /* Setup engine function pointers */ + switch (pScreenInfo->dwEngine) + { + case WIN_SERVER_SHADOW_GDI: + winSetEngineFunctionsShadowGDI (pScreen); + break; + case WIN_SERVER_SHADOW_DD: + winSetEngineFunctionsShadowDD (pScreen); + break; + case WIN_SERVER_SHADOW_DDNL: + winSetEngineFunctionsShadowDDNL (pScreen); + break; +#ifdef XWIN_PRIMARYFB + case WIN_SERVER_PRIMARY_DD: + winSetEngineFunctionsPrimaryDD (pScreen); + break; +#endif +#ifdef XWIN_NATIVEGDI + case WIN_SERVER_NATIVE_GDI: + winSetEngineFunctionsNativeGDI (pScreen); + break; +#endif + default: + FatalError ("winSetEngine - Invalid engine type\n"); + } + return TRUE; + } + + /* ShadowDDNL has good performance, so why not */ + if (g_dwEnginesSupported & WIN_SERVER_SHADOW_DDNL) + { + winErrorFVerb (2, "winSetEngine - Using Shadow DirectDraw NonLocking\n"); + pScreenInfo->dwEngine = WIN_SERVER_SHADOW_DDNL; + + /* Set engine function pointers */ + winSetEngineFunctionsShadowDDNL (pScreen); + return TRUE; + } + + /* ShadowDD is next in line */ + if (g_dwEnginesSupported & WIN_SERVER_SHADOW_DD) + { + winErrorFVerb (2, "winSetEngine - Using Shadow DirectDraw\n"); + pScreenInfo->dwEngine = WIN_SERVER_SHADOW_DD; + + /* Set engine function pointers */ + winSetEngineFunctionsShadowDD (pScreen); + return TRUE; + } + + /* ShadowGDI is next in line */ + if (g_dwEnginesSupported & WIN_SERVER_SHADOW_GDI) + { + winErrorFVerb (2, "winSetEngine - Using Shadow GDI DIB\n"); + pScreenInfo->dwEngine = WIN_SERVER_SHADOW_GDI; + + /* Set engine function pointers */ + winSetEngineFunctionsShadowGDI (pScreen); + return TRUE; + } + + return TRUE; +} + + +/* + * Get procedure addresses for DirectDrawCreate and DirectDrawCreateClipper + */ + +Bool +winGetDDProcAddresses () +{ + Bool fReturn = TRUE; + + /* Load the DirectDraw library */ + g_hmodDirectDraw = LoadLibraryEx ("ddraw.dll", NULL, 0); + if (g_hmodDirectDraw == NULL) + { + ErrorF ("winGetDDProcAddresses - Could not load ddraw.dll\n"); + fReturn = TRUE; + goto winGetDDProcAddresses_Exit; + } + + /* Try to get the DirectDrawCreate address */ + g_fpDirectDrawCreate = GetProcAddress (g_hmodDirectDraw, + "DirectDrawCreate"); + if (g_fpDirectDrawCreate == NULL) + { + ErrorF ("winGetDDProcAddresses - Could not get DirectDrawCreate " + "address\n"); + fReturn = TRUE; + goto winGetDDProcAddresses_Exit; + } + + /* Try to get the DirectDrawCreateClipper address */ + g_fpDirectDrawCreateClipper = GetProcAddress (g_hmodDirectDraw, + "DirectDrawCreateClipper"); + if (g_fpDirectDrawCreateClipper == NULL) + { + ErrorF ("winGetDDProcAddresses - Could not get " + "DirectDrawCreateClipper address\n"); + fReturn = FALSE; + goto winGetDDProcAddresses_Exit; + } + + /* + * Note: Do not unload ddraw.dll here. Do it in GiveUp + */ + + winGetDDProcAddresses_Exit: + /* Unload the DirectDraw library if we failed to initialize */ + if (!fReturn && g_hmodDirectDraw != NULL) + { + FreeLibrary (g_hmodDirectDraw); + g_hmodDirectDraw = NULL; + } + + return fReturn; +} |