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authorBrad Davis <[email protected]>2014-07-24 16:47:31 -0700
committerBrad Davis <[email protected]>2014-07-24 16:47:31 -0700
commit0f49ce8fc6aa54224e4c0d6fda8c4527ad39cce1 (patch)
treeda07ebc6a7f75185bda857dd5f1c34710b416a93 /LibOVR/Src/Displays/OVR_Display.h
parentca79271759ff7eecd22ec5c4db438370fe51d687 (diff)
0.4 Win-Beta0.4.0
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+/************************************************************************************
+
+PublicHeader: None
+Filename : OVR_Display.h
+Content : Contains platform independent display management
+Created : May 6, 2014
+Notes :
+
+Copyright : Copyright 2014 Oculus VR, Inc. All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.1 (the "License");
+you may not use the Oculus VR Rift SDK except in compliance with the License,
+which is provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+You may obtain a copy of the License at
+
+http://www.oculusvr.com/licenses/LICENSE-3.1
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+************************************************************************************/
+
+#ifndef OVR_Display_h
+#define OVR_Display_h
+
+#include "../Sensors/OVR_DeviceConstants.h" // Required for HmdTypeEnum
+
+#include "../Kernel/OVR_Types.h"
+#include "../Kernel/OVR_Atomic.h"
+#include "../Kernel/OVR_RefCount.h"
+#include "../Kernel/OVR_Array.h"
+#include "../Kernel/OVR_String.h"
+#include "../Kernel/OVR_Math.h"
+
+namespace OVR {
+
+class DisplaySearchHandle : virtual public RefCountBaseV<DisplaySearchHandle>
+{
+public:
+ DisplaySearchHandle() {}
+
+ virtual ~DisplaySearchHandle() {}
+
+ void operator= (const DisplaySearchHandle&) {}
+};
+
+//-------------------------------------------------------------------------------------
+// ***** Display
+
+// Display object describes an Oculus HMD screen in LibOVR, providing information such
+// as EDID serial number and resolution in platform-independent manner.
+//
+// Display is an abstract base class to support OS and driver specific implementations.
+// It support HMD screen enumeration through GetDisplayCount/GetDisplay static functions.
+//
+// Examples of implementations of Display are the following:
+// Display_Win32_Generic - Compatibly mode implementation that maintains operation on
+// systems without drivers.
+// Display_Win32_Driver - Driver-Based display
+// Display_OSX_Generic - Additional compatibility mode implementation for OS X
+
+class Display : public RefCountBase<Display>
+{
+protected:
+ enum MirrorMode
+ {
+ MirrorEnabled = 0,
+ MirrorDisabled = 1
+ };
+
+ MirrorMode mirrorMode;
+
+ Display(
+ HmdTypeEnum deviceTypeGuess,
+#ifdef OVR_OS_MAC
+ uint32_t displayID,
+#else
+ const String& displayID,
+#endif
+ const String& modelName,
+ const String& editSerial,
+ const Sizei& logicalRes,
+ const Sizei& nativeRes,
+ const Vector2i& displayOffset,
+ const uint64_t devNumber,
+ const uint32_t rotation,
+ const bool appExclusive):
+ DeviceTypeGuess(deviceTypeGuess),
+ DisplayID(displayID),
+ ModelName(modelName),
+ EdidSerialNumber(editSerial),
+ LogicalResolutionInPixels(logicalRes),
+ NativeResolutionInPixels(nativeRes),
+ DesktopDisplayOffset(displayOffset),
+ DeviceNumber(devNumber),
+ Rotation(rotation),
+ ApplicationExclusive(appExclusive)
+ {
+ }
+
+ void operator = (const Display&) { } // Quiet warning.
+
+public:
+ virtual ~Display() { }
+
+ // ----- Platform specific static Display functionality -----
+
+ // Mandatory function that sets up the display environment with
+ // any necessary shimming and function hooks. This should be one
+ // of the very first things your application does when it
+ // initializes LibOVR
+ static bool Initialize();
+
+ // Returns a count of the detected displays. These are Rift displays
+ // attached directly to an active display port
+ static int GetDisplayCount( DisplaySearchHandle* handle = NULL, bool extended = true, bool applicationOnly = true, bool extendedEDIDSerials = false );
+ // Returns a specific index of a display. Displays are sorted in no particular order.
+ static Ptr<Display> GetDisplay( int index = 0, DisplaySearchHandle* handle = NULL );
+
+
+ // Returns true if we are referencing the same display; useful for matching display
+ // objects with the ones already detected.
+ bool MatchDisplay(const Display* other)
+ {
+ // Note this is not checking the DeviceName, which corresponds to which monitor the device is.
+ // This allows matching to match a display that has changed how it is plugged in.
+ return (DisplayID == other->DisplayID) &&
+ (EdidSerialNumber == other->EdidSerialNumber) &&
+ (NativeResolutionInPixels == other->NativeResolutionInPixels) &&
+ (DesktopDisplayOffset == other->DesktopDisplayOffset) &&
+ (ApplicationExclusive == other->ApplicationExclusive);
+ }
+
+
+ // ----- Device independent instance based Display functionality -----
+
+ // Device type guess based on display info.
+ const HmdTypeEnum DeviceTypeGuess;
+#if defined(OVR_OS_MAC)
+ // CGDirectDisplayID for the rift.
+ const uint32_t DisplayID;
+#else
+ // A string denoting the display device name so that apps can recognize the monitor
+ const String DisplayID;
+#endif
+ // A literal string containing the name of the model, i.e. Rift DK2
+ const String ModelName;
+ // Part of the serial number encoded in Edid, used for monitor <-> sensor matching.
+ const String EdidSerialNumber;
+ // Logical resolution is the display resolution in presentation terms.
+ // That is to say, the resolution that represents the orientation the
+ // display is projected to the user. For DK2, while being a portrait display
+ // the display is held in landscape and therefore the logical resolution
+ // is 1920x1080
+ const Sizei LogicalResolutionInPixels;
+ // Native resolution is the resolution reported by the EDID and represents the
+ // exact hardware resolution of the Rift. For example, on DK2
+ // this is 1080x1920
+ // In theory, an OS rotated Rift's native and logical resolutions should match
+ const Sizei NativeResolutionInPixels;
+ // For displays that are attached to the desktop, this return value has meaning.
+ // Otherwise it should always return origin
+ const Vector2i DesktopDisplayOffset;
+ // For Windows machines this value stores the ChildUid used to identify this display
+ const uint64_t DeviceNumber;
+ // Stores the device specific default rotation of the screen
+ // E.g. DK2 is rotated 90 degrees as it is a portrait display
+ const uint32_t Rotation;
+ // Is set if the Display is capable in Application-Only mode
+ const bool ApplicationExclusive;
+
+ // Functionality for rendering within the window
+ virtual MirrorMode SetMirrorMode( MirrorMode newMode ) = 0;
+
+ // Functionality for enabling/disabling display
+ virtual bool SetDisplaySleep(bool off)
+ {
+ // Override to implement if supported
+ OVR_UNUSED(off);
+ return false;
+ }
+
+ // In compatibility mode?
+ static bool InCompatibilityMode();
+ static DisplaySearchHandle* GetDisplaySearchHandle();
+};
+
+
+} // namespace OVR
+
+#endif