ovr_sdk

annotate LibOVR/Src/CAPI/CAPI_HMDRenderState.cpp @ 0:1b39a1b46319

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initial 0.4.4
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 14 Jan 2015 06:51:16 +0200
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nuclear@0 1 /************************************************************************************
nuclear@0 2
nuclear@0 3 Filename : OVR_CAPI_HMDRenderState.cpp
nuclear@0 4 Content : Combines all of the rendering state associated with the HMD
nuclear@0 5 Created : February 2, 2014
nuclear@0 6 Authors : Michael Antonov
nuclear@0 7
nuclear@0 8 Copyright : Copyright 2014 Oculus VR, LLC All Rights reserved.
nuclear@0 9
nuclear@0 10 Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License");
nuclear@0 11 you may not use the Oculus VR Rift SDK except in compliance with the License,
nuclear@0 12 which is provided at the time of installation or download, or which
nuclear@0 13 otherwise accompanies this software in either electronic or hard copy form.
nuclear@0 14
nuclear@0 15 You may obtain a copy of the License at
nuclear@0 16
nuclear@0 17 http://www.oculusvr.com/licenses/LICENSE-3.2
nuclear@0 18
nuclear@0 19 Unless required by applicable law or agreed to in writing, the Oculus VR SDK
nuclear@0 20 distributed under the License is distributed on an "AS IS" BASIS,
nuclear@0 21 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nuclear@0 22 See the License for the specific language governing permissions and
nuclear@0 23 limitations under the License.
nuclear@0 24
nuclear@0 25 ************************************************************************************/
nuclear@0 26
nuclear@0 27 #include "CAPI_HMDRenderState.h"
nuclear@0 28
nuclear@0 29 namespace OVR { namespace CAPI {
nuclear@0 30
nuclear@0 31
nuclear@0 32 //-------------------------------------------------------------------------------------
nuclear@0 33 // ***** HMDRenderState
nuclear@0 34
nuclear@0 35 ovrHmdDesc HMDRenderState::GetDesc() const
nuclear@0 36 {
nuclear@0 37 ovrHmdDesc d;
nuclear@0 38 memset(&d, 0, sizeof(d));
nuclear@0 39
nuclear@0 40 d.Type = ovrHmd_Other;
nuclear@0 41
nuclear@0 42 d.ProductName = OurHMDInfo.ProductName;
nuclear@0 43 d.Manufacturer = OurHMDInfo.Manufacturer;
nuclear@0 44 d.Resolution.w = OurHMDInfo.ResolutionInPixels.w;
nuclear@0 45 d.Resolution.h = OurHMDInfo.ResolutionInPixels.h;
nuclear@0 46 d.WindowsPos.x = OurHMDInfo.DesktopX;
nuclear@0 47 d.WindowsPos.y = OurHMDInfo.DesktopY;
nuclear@0 48 d.DisplayDeviceName = OurHMDInfo.DisplayDeviceName;
nuclear@0 49 d.DisplayId = OurHMDInfo.DisplayId;
nuclear@0 50 d.VendorId = (short)OurHMDInfo.VendorId;
nuclear@0 51 d.ProductId = (short)OurHMDInfo.ProductId;
nuclear@0 52 d.FirmwareMajor = (short)OurHMDInfo.FirmwareMajor;
nuclear@0 53 d.FirmwareMinor = (short)OurHMDInfo.FirmwareMinor;
nuclear@0 54 d.CameraFrustumFarZInMeters = OurHMDInfo.CameraFrustumFarZInMeters;
nuclear@0 55 d.CameraFrustumHFovInRadians = OurHMDInfo.CameraFrustumHFovInRadians;
nuclear@0 56 d.CameraFrustumNearZInMeters = OurHMDInfo.CameraFrustumNearZInMeters;
nuclear@0 57 d.CameraFrustumVFovInRadians = OurHMDInfo.CameraFrustumVFovInRadians;
nuclear@0 58
nuclear@0 59 OVR_strcpy(d.SerialNumber, sizeof(d.SerialNumber), OurHMDInfo.PrintedSerial.ToCStr());
nuclear@0 60
nuclear@0 61 d.HmdCaps = ovrHmdCap_Present | ovrHmdCap_NoVSync;
nuclear@0 62 d.TrackingCaps = ovrTrackingCap_MagYawCorrection | ovrTrackingCap_Orientation;
nuclear@0 63 d.DistortionCaps = ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp |
nuclear@0 64 ovrDistortionCap_Vignette | ovrDistortionCap_SRGB |
nuclear@0 65 ovrDistortionCap_FlipInput | ovrDistortionCap_ProfileNoTimewarpSpinWaits |
nuclear@0 66 ovrDistortionCap_HqDistortion | ovrDistortionCap_LinuxDevFullscreen;
nuclear@0 67
nuclear@0 68 #if defined(OVR_OS_WIN32) || defined(OVR_OS_WIN64)
nuclear@0 69 // TODO: this gets enabled for everything, but is only applicable for DX11+
nuclear@0 70 d.DistortionCaps |= ovrDistortionCap_ComputeShader;
nuclear@0 71 #endif
nuclear@0 72
nuclear@0 73 if( OurHMDInfo.InCompatibilityMode )
nuclear@0 74 d.HmdCaps |= ovrHmdCap_ExtendDesktop;
nuclear@0 75
nuclear@0 76 if (strstr(OurHMDInfo.ProductName, "DK1"))
nuclear@0 77 {
nuclear@0 78 d.Type = ovrHmd_DK1;
nuclear@0 79 }
nuclear@0 80 else if (strstr(OurHMDInfo.ProductName, "DK2"))
nuclear@0 81 {
nuclear@0 82 d.Type = ovrHmd_DK2;
nuclear@0 83 d.HmdCaps |= ovrHmdCap_LowPersistence | ovrHmdCap_DynamicPrediction;
nuclear@0 84 d.TrackingCaps |= ovrTrackingCap_Position;
nuclear@0 85 d.DistortionCaps |= ovrDistortionCap_Overdrive;
nuclear@0 86 }
nuclear@0 87
nuclear@0 88 const DistortionRenderDesc& leftDistortion = Distortion[0];
nuclear@0 89 const DistortionRenderDesc& rightDistortion = Distortion[1];
nuclear@0 90
nuclear@0 91 // The suggested FOV (assuming eye rotation)
nuclear@0 92 d.DefaultEyeFov[0] = CalculateFovFromHmdInfo(StereoEye_Left, leftDistortion, RenderInfo, OVR_DEFAULT_EXTRA_EYE_ROTATION);
nuclear@0 93 d.DefaultEyeFov[1] = CalculateFovFromHmdInfo(StereoEye_Right, rightDistortion, RenderInfo, OVR_DEFAULT_EXTRA_EYE_ROTATION);
nuclear@0 94
nuclear@0 95 // FOV extended across the entire screen
nuclear@0 96 d.MaxEyeFov[0] = GetPhysicalScreenFov(StereoEye_Left, leftDistortion);
nuclear@0 97 d.MaxEyeFov[1] = GetPhysicalScreenFov(StereoEye_Right, rightDistortion);
nuclear@0 98
nuclear@0 99 if (OurHMDInfo.Shutter.Type == HmdShutter_RollingRightToLeft)
nuclear@0 100 {
nuclear@0 101 d.EyeRenderOrder[0] = ovrEye_Right;
nuclear@0 102 d.EyeRenderOrder[1] = ovrEye_Left;
nuclear@0 103 }
nuclear@0 104 else
nuclear@0 105 {
nuclear@0 106 d.EyeRenderOrder[0] = ovrEye_Left;
nuclear@0 107 d.EyeRenderOrder[1] = ovrEye_Right;
nuclear@0 108 }
nuclear@0 109
nuclear@0 110 // MA: Taking this out on purpose.
nuclear@0 111 // Important information for those that are required to do their own timing,
nuclear@0 112 // because of shortfalls in timing code.
nuclear@0 113 //d.VsyncToNextVsync = OurHMDInfo.Shutter.VsyncToNextVsync;
nuclear@0 114 //d.PixelPersistence = OurHMDInfo.Shutter.PixelPersistence;
nuclear@0 115
nuclear@0 116 return d;
nuclear@0 117 }
nuclear@0 118
nuclear@0 119
nuclear@0 120 ovrSizei HMDRenderState::GetFOVTextureSize(int eye, ovrFovPort fov, float pixelsPerDisplayPixel) const
nuclear@0 121 {
nuclear@0 122 OVR_ASSERT((unsigned)eye < 2);
nuclear@0 123 StereoEye seye = (eye == ovrEye_Left) ? StereoEye_Left : StereoEye_Right;
nuclear@0 124 return CalculateIdealPixelSize(seye, Distortion[eye], fov, pixelsPerDisplayPixel);
nuclear@0 125 }
nuclear@0 126
nuclear@0 127 ovrEyeRenderDesc HMDRenderState::CalcRenderDesc(ovrEyeType eyeType, const ovrFovPort& fov) const
nuclear@0 128 {
nuclear@0 129 const HmdRenderInfo& hmdri = RenderInfo;
nuclear@0 130 StereoEye eye = (eyeType == ovrEye_Left) ? StereoEye_Left : StereoEye_Right;
nuclear@0 131 ovrEyeRenderDesc e0;
nuclear@0 132
nuclear@0 133 e0.Eye = eyeType;
nuclear@0 134 e0.Fov = fov;
nuclear@0 135 e0.HmdToEyeViewOffset = CalculateEyeVirtualCameraOffset(hmdri, eye, false);
nuclear@0 136 e0.DistortedViewport = GetFramebufferViewport(eye, hmdri);
nuclear@0 137 e0.PixelsPerTanAngleAtCenter = Distortion[0].PixelsPerTanAngleAtCenter;
nuclear@0 138
nuclear@0 139 return e0;
nuclear@0 140 }
nuclear@0 141
nuclear@0 142 }} // namespace OVR::CAPI
nuclear@0 143