- WHAT IS DIRECTDRAW HARDWARE INSTALL
- WHAT IS DIRECTDRAW HARDWARE CODE
- WHAT IS DIRECTDRAW HARDWARE WINDOWS
neither kqemu nor kvm work with win98, and I haven't got the game to work in win2k/xp.) The lack of guest additions for win98 make vbox unusable for what I wanted, since Starship Titanic needs 640x480/16bpp. (or unplayably slowly in qemu with its Cirrus vid card. I'll go test.īTW, what I really wanted was to play Starship Titanic, which I haven't gotten to work except in win98 on real hardware. I thought that's what I was using, and I know there are directdraw fixes in the changelog.
WHAT IS DIRECTDRAW HARDWARE WINDOWS
The tests all fail until you turn down the video accel in the windows control panel to a level that disables all directdraw acceleration.
WHAT IS DIRECTDRAW HARDWARE INSTALL
Install the guest additions (VBoxGuestAdditions_1.5.0_OSE.iso). To reproduce the problem, create a vm and install windows 2000 or winxp (I've tried with win2k pro, win2k sp4 pro, and winxp sp2 pro). (Hmmm, I didn't realize I didn't have 1.5.2 until just now). I'm using Ubuntu's virtualbox package, 1.5.0-dfsg2-1ubuntu3. My host system is AMD64 Ubuntu Gutsy, on a Core 2 Duo (although I didn't enable VT-x in vbox).
WHAT IS DIRECTDRAW HARDWARE CODE
Your code should run on state-of-the-art accelerators and use whatever capabilities are available, but it should also be flexible enough to gracefully degrade the appearance of your 3D world while still running efficiently if some of these features aren't available.I see the same thing. DirectXInterface Purpose DirectCompute GPGPU computing DirectDraw 2D graphics Direct3D. Many display devices currently on the market don't support capabilities such as overlays, so you'd be wise to consider not requiring this feature. It accesses the hardware abstraction layer in Windows (see HAL). You need to determine which features your code requires and which are just nice to have. The address of a DDCAPS structure to be filled with the HEL capabilities The address of a DDCAPS structure to be filled with the device's hardware capabilities HRESULT GetCaps( LPDDCAPS lpDDDriverCaps, LPDDCAPS lpDDHELCaps ) If the display device lacks the DirectDraw capabilities you need, you can decide not to use it for your application.
Note that this function only gets DirectDraw capabilities, not Direct3D capabilities (which are examined later). The GetCaps method returns the cap bits that define which features the target system's hardware supports and which it only emulates. If the DirectDrawCreateEx call succeeds, you can query the object to see what capabilities it supports by using the DirectDraw method GetCaps (STEP 3 in the preceding code). If the call to DirectDrawCreateEx fails, the DriverEnumCallback routine returns immediately and waits to be called again to determine whether another DirectDraw hardware device found during enumeration is available and might work. Must be set to NULL provided for future compatibility with COM aggregation features.
Must be set to IID_IDirectDraw7 any other value will cause the function to fail. The address of a variable to be initialized with a valid IDirectDraw7 interface pointer upon success of the call. NULL Use the primary device (the active display driver).ĭDCREATE_EMULATIONONLY Use the HEL device (for testing or debugging).ĭDCREATE_HARDWAREONLY Use the HAL only with the default device (for testing and debugging). HRESULT WINAPI DirectDrawCreateEx GUID FAR * lpGUID, LPDIRECTDRAW FAR * lplpDD, REFIID iid, IUnknown FAR * pUnkOuter ) Įither the address of a globally unique identifier for the DirectDraw device to be used or one of the following values: When you're developing new games, you should always use the newest interfaces I recommend using DirectDrawCreateEx for all your new code. If you want to use any of the earlier interfaces, you need to create the object by using DirectDrawCreate and querying for the interface you want to use. This function returns only the new IDirectDraw7 interface. In the first section (labeled STEP 1) of the DriverEnumCallback function shown above, the call to the DirectDrawCreateEx routine attempts to create the DirectDraw device. You can use each of the unique DirectDraw objects available on the target system to manipulate the display device and to create clipper objects, surfaces, palettes, and so on for them. If any of the available display devices support hardware acceleration, the DirectDraw object can use this acceleration. The DirectDraw object is the object you'll use to operate on a particular display device.
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