diff options
Diffstat (limited to 'LibOVR/Src/CAPI/D3D9/CAPI_D3D9_DistortionRenderer.cpp')
| -rw-r--r-- | LibOVR/Src/CAPI/D3D9/CAPI_D3D9_DistortionRenderer.cpp | 845 |
1 files changed, 436 insertions, 409 deletions
diff --git a/LibOVR/Src/CAPI/D3D9/CAPI_D3D9_DistortionRenderer.cpp b/LibOVR/Src/CAPI/D3D9/CAPI_D3D9_DistortionRenderer.cpp index 05508ea..d7706ae 100644 --- a/LibOVR/Src/CAPI/D3D9/CAPI_D3D9_DistortionRenderer.cpp +++ b/LibOVR/Src/CAPI/D3D9/CAPI_D3D9_DistortionRenderer.cpp @@ -1,409 +1,436 @@ -/************************************************************************************
-
-Filename : CAPI_D3D1X_DistortionRenderer.cpp
-Content : Experimental distortion renderer
-Created : March 7th, 2014
-Authors : Tom Heath
-
-Copyright : Copyright 2014 Oculus VR, LLC All Rights reserved.
-
-Licensed under the Oculus VR Rift SDK License Version 3.2 (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-3.2
-
-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.
-
-************************************************************************************/
-
-#include "CAPI_D3D9_DistortionRenderer.h"
-#define OVR_D3D_VERSION 9
-#include "../../OVR_CAPI_D3D.h"
-
-#include <initguid.h>
-DEFINE_GUID(IID_OVRDirect3DDevice9EX, 0xe6d58f10, 0xffa1, 0x4748, 0x85, 0x9f, 0xbc, 0xd7, 0xea, 0xe8, 0xfc, 0x1);
-
-namespace OVR { namespace CAPI { namespace D3D9 {
-
-
-///QUESTION : Why not just a normal constructor?
-CAPI::DistortionRenderer* DistortionRenderer::Create(ovrHmd hmd,
- FrameTimeManager& timeManager,
- const HMDRenderState& renderState)
-{
- return new DistortionRenderer(hmd, timeManager, renderState);
-}
-
-DistortionRenderer::DistortionRenderer(ovrHmd hmd, FrameTimeManager& timeManager,
- const HMDRenderState& renderState)
- : CAPI::DistortionRenderer(ovrRenderAPI_D3D9, hmd, timeManager, renderState),
- Device(NULL),
- SwapChain(NULL),
- VertexDecl(NULL),
- PixelShader(NULL),
- VertexShader(NULL),
- VertexShaderTimewarp(NULL),
- //screenSize(),
- ResolutionInPixels(0,0)
- //eachEye[]
-{
- ScreenSize.w = 0;
- ScreenSize.h = 0;
- InitLatencyTester(renderState);
-
- for (int i = 0; i < 2; ++i)
- {
- eachEye[i].dxIndices = nullptr;
- eachEye[i].dxVerts = nullptr;
- }
-}
-
-
-/**********************************************/
-DistortionRenderer::~DistortionRenderer()
-{
- //Release any memory
- if (eachEye[0].dxIndices)
- {
- eachEye[0].dxIndices->Release();
- }
- if (eachEye[0].dxVerts)
- {
- eachEye[0].dxVerts->Release();
- }
- if (eachEye[1].dxIndices)
- {
- eachEye[1].dxIndices->Release();
- }
- if (eachEye[1].dxVerts)
- {
- eachEye[1].dxVerts->Release();
- }
-}
-
-
-/******************************************************************************/
-bool DistortionRenderer::Initialize(const ovrRenderAPIConfig* apiConfig)
-{
- ///QUESTION - what is returned bool for??? Are we happy with this true, if not config.
- const ovrD3D9Config * config = (const ovrD3D9Config*)apiConfig;
- if (!config) return true;
- if (!config->D3D9.pDevice) return false;
-
- if (System::DirectDisplayEnabled())
- {
- Ptr<IUnknown> ovrDevice;
- if (config->D3D9.pDevice->QueryInterface(IID_OVRDirect3DDevice9EX, (void**)&ovrDevice.GetRawRef()) == E_NOINTERFACE)
- {
- OVR_DEBUG_LOG_TEXT(("ovr_Initialize() or ovr_InitializeRenderingShim() wasn't called before the D3D9 device was created."));
- }
- }
-
- //Glean all the required variables from the input structures
- Device = config->D3D9.pDevice;
- SwapChain = config->D3D9.pSwapChain;
- ScreenSize = config->D3D9.Header.BackBufferSize;
-
- GfxState = *new GraphicsState(Device, RState.DistortionCaps);
-
- CreateVertexDeclaration();
- CreateDistortionShaders();
- CreateDistortionModels();
-
- return true;
-}
-
-void DistortionRenderer::InitLatencyTester(const HMDRenderState& RenderState)
-{
- ResolutionInPixels = RenderState.OurHMDInfo.ResolutionInPixels;
-}
-
-
-/**************************************************************/
-void DistortionRenderer::SubmitEye(int eyeId, const ovrTexture* eyeTexture)
-{
- //Doesn't do a lot in here??
- const ovrD3D9Texture* tex = (const ovrD3D9Texture*)eyeTexture;
-
- //Write in values
- eachEye[eyeId].texture = tex->D3D9.pTexture;
-
- // Its only at this point we discover what the viewport of the texture is.
- // because presumably we allow users to realtime adjust the resolution.
- eachEye[eyeId].TextureSize = tex->D3D9.Header.TextureSize;
- eachEye[eyeId].RenderViewport = tex->D3D9.Header.RenderViewport;
-
- const ovrEyeRenderDesc& erd = RState.EyeRenderDesc[eyeId];
-
- ovrHmd_GetRenderScaleAndOffset( erd.Fov,
- eachEye[eyeId].TextureSize, eachEye[eyeId].RenderViewport,
- eachEye[eyeId].UVScaleOffset );
-
- if (RState.DistortionCaps & ovrDistortionCap_FlipInput)
- {
- eachEye[eyeId].UVScaleOffset[0].y = -eachEye[eyeId].UVScaleOffset[0].y;
- eachEye[eyeId].UVScaleOffset[1].y = 1.0f - eachEye[eyeId].UVScaleOffset[1].y;
- }
-}
-
-void DistortionRenderer::renderEndFrame()
-{
- RenderBothDistortionMeshes();
-
- if(RegisteredPostDistortionCallback)
- RegisteredPostDistortionCallback(Device);
-
- if (LatencyTest2Active)
- {
- renderLatencyPixel(LatencyTest2DrawColor);
- }
-}
-
-/******************************************************************/
-void DistortionRenderer::EndFrame(bool swapBuffers)
-{
- ///QUESTION : Clear the screen?
- ///QUESTION : Ensure the screen is the render target
-
- // Don't spin if we are explicitly asked not to
- if (RState.DistortionCaps & ovrDistortionCap_TimeWarp &&
- !(RState.DistortionCaps & ovrDistortionCap_ProfileNoTimewarpSpinWaits))
- {
- if (!TimeManager.NeedDistortionTimeMeasurement())
- {
- // Wait for timewarp distortion if it is time and Gpu idle
- FlushGpuAndWaitTillTime(TimeManager.GetFrameTiming().TimewarpPointTime);
-
- renderEndFrame();
- }
- else
- {
- // If needed, measure distortion time so that TimeManager can better estimate
- // latency-reducing time-warp wait timing.
- WaitUntilGpuIdle();
- double distortionStartTime = ovr_GetTimeInSeconds();
-
- renderEndFrame();
-
- WaitUntilGpuIdle();
- TimeManager.AddDistortionTimeMeasurement(ovr_GetTimeInSeconds() - distortionStartTime);
- }
- }
- else
- {
- renderEndFrame();
- }
-
- if (LatencyTestActive)
- {
- renderLatencyQuad(LatencyTestDrawColor);
- }
-
- if (swapBuffers)
- {
- if (SwapChain)
- {
- SwapChain->Present(NULL, NULL, NULL, NULL, 0);
- }
- else
- {
- Device->Present( NULL, NULL, NULL, NULL );
- }
-
- // Force GPU to flush the scene, resulting in the lowest possible latency.
- // It's critical that this flush is *after* present.
- // Doesn't need to be done if running through the Oculus driver.
- if (RState.OurHMDInfo.InCompatibilityMode &&
- !(RState.DistortionCaps & ovrDistortionCap_ProfileNoTimewarpSpinWaits))
- {
- WaitUntilGpuIdle();
- }
- }
-}
-
-
-void DistortionRenderer::WaitUntilGpuIdle()
-{
- if(Device)
- {
- IDirect3DQuery9* pEventQuery=NULL ;
- Device->CreateQuery(D3DQUERYTYPE_EVENT, &pEventQuery) ;
-
- if(pEventQuery!=NULL)
- {
- pEventQuery->Issue(D3DISSUE_END) ;
- while(S_FALSE == pEventQuery->GetData(NULL, 0, D3DGETDATA_FLUSH)){}
- pEventQuery->Release();
- }
- }
-}
-
-double DistortionRenderer::FlushGpuAndWaitTillTime(double absTime)
-{
- double initialTime = ovr_GetTimeInSeconds();
- if (initialTime >= absTime)
- return 0.0;
-
- WaitUntilGpuIdle();
-
- return WaitTillTime(absTime);
-}
-
-
-//-----------------------------------------------------------------------------
-// Latency Tester Quad
-
-static void ConvertSRGB(unsigned char c[3])
-{
- for (int i = 0; i < 3; ++i)
- {
- double d = (double)c[i];
- double ds = d / 255.;
-
- if (ds <= 0.04045)
- {
- d /= 12.92;
- }
- else
- {
- d = 255. * pow((ds + 0.055) / 1.055, 2.4);
- }
-
- int color = (int)d;
- if (color < 0)
- {
- color = 0;
- }
- else if (color > 255)
- {
- color = 255;
- }
-
- c[i] = (unsigned char)color;
- }
-}
-
-void DistortionRenderer::renderLatencyQuad(unsigned char* color)
-{
- D3DRECT rect = { ResolutionInPixels.w / 4, ResolutionInPixels.h / 4, ResolutionInPixels.w * 3 / 4, ResolutionInPixels.h * 3 / 4 };
- unsigned char c[3] = { color[0], color[1], color[2] };
-
- if (RState.DistortionCaps & ovrDistortionCap_SRGB)
- {
- ConvertSRGB(c);
- }
-
- Device->Clear(1, &rect, D3DCLEAR_TARGET, D3DCOLOR_RGBA(c[0], c[1], c[2], 255), 1, 0);
-}
-
-#ifdef OVR_BUILD_DEBUG
-#define OVR_LATENCY_PIXEL_SIZE 20
-#else
-#define OVR_LATENCY_PIXEL_SIZE 5
-#endif
-
-void DistortionRenderer::renderLatencyPixel(unsigned char* color)
-{
- D3DRECT rect = { ResolutionInPixels.w - OVR_LATENCY_PIXEL_SIZE, 0, ResolutionInPixels.w, OVR_LATENCY_PIXEL_SIZE };
- unsigned char c[3] = { color[0], color[1], color[2] };
-
- if (RState.DistortionCaps & ovrDistortionCap_SRGB)
- {
- ConvertSRGB(c);
- }
-
- Device->Clear(1, &rect, D3DCLEAR_TARGET, D3DCOLOR_RGBA(c[0], c[1], c[2], 255), 1, 0);
-}
-
-
-//-----------------------------------------------------------------------------
-// GraphicsState
-
-DistortionRenderer::GraphicsState::GraphicsState(IDirect3DDevice9* d, unsigned distortionCaps)
-: Device(d)
-, NumSavedStates(0)
-, DistortionCaps(distortionCaps)
-{
- #if defined(OVR_BUILD_DEBUG)
- memset(SavedState, 0, sizeof(SavedState));
- #endif
-}
-
-void DistortionRenderer::GraphicsState::RecordAndSetState(int which, int type, DWORD newValue)
-{
- SavedStateType * sst = &SavedState[NumSavedStates++];
- sst->which = which;
- sst->type = type;
- if (which == 0)
- {
- Device->GetSamplerState(0, (D3DSAMPLERSTATETYPE)type, &sst->valueToRevertTo);
- Device->SetSamplerState(0, (D3DSAMPLERSTATETYPE)type, newValue);
- }
- else
- {
- Device->GetRenderState((D3DRENDERSTATETYPE)type, &sst->valueToRevertTo);
- Device->SetRenderState((D3DRENDERSTATETYPE)type, newValue);
- }
-}
-
-void DistortionRenderer::GraphicsState::Save()
-{
- //Record and set rasterizer and sampler states.
-
- NumSavedStates=0;
-
- RecordAndSetState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR );
- RecordAndSetState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR );
- RecordAndSetState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR );
- RecordAndSetState(0, D3DSAMP_BORDERCOLOR, 0x000000 );
- RecordAndSetState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_BORDER );
- RecordAndSetState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_BORDER );
- RecordAndSetState(0, D3DSAMP_SRGBTEXTURE, (DistortionCaps & ovrDistortionCap_SRGB) ? TRUE : FALSE );
-
- RecordAndSetState(1, D3DRS_MULTISAMPLEANTIALIAS, FALSE );
- RecordAndSetState(1, D3DRS_DITHERENABLE, FALSE );
- RecordAndSetState(1, D3DRS_ZENABLE, FALSE );
- RecordAndSetState(1, D3DRS_ZWRITEENABLE, TRUE );
- RecordAndSetState(1, D3DRS_ZFUNC, D3DCMP_LESSEQUAL );
- RecordAndSetState(1, D3DRS_CULLMODE , D3DCULL_CCW );
- RecordAndSetState(1, D3DRS_ALPHABLENDENABLE , FALSE );
- RecordAndSetState(1, D3DRS_DEPTHBIAS , 0 );
- RecordAndSetState(1, D3DRS_SRCBLEND , D3DBLEND_SRCALPHA );
- RecordAndSetState(1, D3DRS_DESTBLEND , D3DBLEND_INVSRCALPHA );
- RecordAndSetState(1, D3DRS_FILLMODE, D3DFILL_SOLID );
- RecordAndSetState(1, D3DRS_ALPHATESTENABLE, FALSE);
- RecordAndSetState(1, D3DRS_DEPTHBIAS , 0 );
- RecordAndSetState(1, D3DRS_LIGHTING, FALSE );
- RecordAndSetState(1, D3DRS_FOGENABLE, FALSE );
- RecordAndSetState(1, D3DRS_SRGBWRITEENABLE, (DistortionCaps & ovrDistortionCap_SRGB) ? TRUE : FALSE );
-}
-
-
-void DistortionRenderer::GraphicsState::Restore()
-{
- for (int i = 0; i < NumSavedStates; i++)
- {
- SavedStateType * sst = &SavedState[i];
- if (sst->which == 0)
- {
- Device->SetSamplerState(0, (D3DSAMPLERSTATETYPE)sst->type, sst->valueToRevertTo);
- }
- else
- {
- Device->SetRenderState((D3DRENDERSTATETYPE)sst->type, sst->valueToRevertTo);
- }
- }
-}
-
-
-}}} // OVR::CAPI::D3D1X
-
-
+/************************************************************************************ + +Filename : CAPI_D3D11_DistortionRenderer.cpp +Content : Experimental distortion renderer +Created : March 7th, 2014 +Authors : Tom Heath + +Copyright : Copyright 2014 Oculus VR, LLC All Rights reserved. + +Licensed under the Oculus VR Rift SDK License Version 3.2 (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-3.2 + +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. + +************************************************************************************/ + +#include "CAPI_D3D9_DistortionRenderer.h" +#include "OVR_CAPI_D3D.h" + +#include <initguid.h> +DEFINE_GUID(IID_OVRDirect3DDevice9EX, 0xe6d58f10, 0xffa1, 0x4748, 0x85, 0x9f, 0xbc, 0xd7, 0xea, 0xe8, 0xfc, 0x1); + +OVR_DISABLE_MSVC_WARNING(4996) // Disable deprecation warning + +namespace OVR { namespace CAPI { namespace D3D9 { + + +///QUESTION : Why not just a normal constructor? +CAPI::DistortionRenderer* DistortionRenderer::Create() +{ + return new DistortionRenderer(); +} + +DistortionRenderer::DistortionRenderer() : + Device(NULL), + SwapChain(NULL), + VertexDecl(NULL), + PixelShader(NULL), + VertexShader(NULL), + VertexShaderTimewarp(NULL), + //screenSize(), + ResolutionInPixels(0,0) + //eachEye[] +{ + ScreenSize.w = 0; + ScreenSize.h = 0; + + for (int i = 0; i < 2; ++i) + { + eachEye[i].dxIndices = nullptr; + eachEye[i].dxVerts = nullptr; + } +} + + +/**********************************************/ +DistortionRenderer::~DistortionRenderer() +{ + //Release any memory + if (eachEye[0].dxIndices) + { + eachEye[0].dxIndices->Release(); + } + if (eachEye[0].dxVerts) + { + eachEye[0].dxVerts->Release(); + } + if (eachEye[1].dxIndices) + { + eachEye[1].dxIndices->Release(); + } + if (eachEye[1].dxVerts) + { + eachEye[1].dxVerts->Release(); + } +} + + +/******************************************************************************/ +bool DistortionRenderer::initializeRenderer(const ovrRenderAPIConfig* apiConfig) +{ + initLatencyTester(); + + ///QUESTION - what is returned bool for??? Are we happy with this true, if not config. + const ovrD3D9Config * config = (const ovrD3D9Config*)apiConfig; + if (!config) return true; + if (!config->D3D9.pDevice) return false; + + if (Display::GetDirectDisplayInitialized()) + { + Ptr<IUnknown> ovrDevice; + if (config->D3D9.pDevice->QueryInterface(IID_OVRDirect3DDevice9EX, (void**)&ovrDevice.GetRawRef()) == E_NOINTERFACE) + { + OVR_DEBUG_LOG_TEXT(("ovr_Initialize() or ovr_InitializeRenderingShim() wasn't called before the D3D9 device was created.")); + } + } + + //Glean all the required variables from the input structures + Device = config->D3D9.pDevice; + SwapChain = config->D3D9.pSwapChain; + ScreenSize = config->D3D9.Header.BackBufferSize; + + GfxState = *new GraphicsState(Device, RenderState->DistortionCaps); + + CreateVertexDeclaration(); + CreateDistortionShaders(); + return CreateDistortionModels(); +} + +void DistortionRenderer::initLatencyTester() +{ + ResolutionInPixels = RenderState->OurHMDInfo.ResolutionInPixels; +} + + +/**************************************************************/ +void DistortionRenderer::SubmitEye(int eyeId, const ovrTexture* eyeTexture) +{ + if (eyeTexture) + { + //Doesn't do a lot in here?? + const ovrD3D9Texture* tex = (const ovrD3D9Texture*)eyeTexture; + + //Write in values + eachEye[eyeId].texture = tex->D3D9.pTexture; + + // Its only at this point we discover what the viewport of the texture is. + // because presumably we allow users to realtime adjust the resolution. + eachEye[eyeId].TextureSize = tex->D3D9.Header.TextureSize; + eachEye[eyeId].RenderViewport = tex->D3D9.Header.RenderViewport; + + const ovrEyeRenderDesc& erd = RenderState->EyeRenderDesc[eyeId]; + + ovrHmd_GetRenderScaleAndOffset(erd.Fov, + eachEye[eyeId].TextureSize, eachEye[eyeId].RenderViewport, + eachEye[eyeId].UVScaleOffset); + + if (RenderState->DistortionCaps & ovrDistortionCap_FlipInput) + { + eachEye[eyeId].UVScaleOffset[0].y = -eachEye[eyeId].UVScaleOffset[0].y; + eachEye[eyeId].UVScaleOffset[1].y = 1.0f - eachEye[eyeId].UVScaleOffset[1].y; + } + } +} + +void DistortionRenderer::SubmitEyeWithDepth(int eyeId, const ovrTexture* eyeColorTexture, const ovrTexture* eyeDepthTexture) +{ + SubmitEye(eyeId, eyeColorTexture); + + OVR_UNUSED(eyeDepthTexture); +} + +void DistortionRenderer::renderEndFrame() +{ + RenderBothDistortionMeshes(); + + if(RegisteredPostDistortionCallback) + RegisteredPostDistortionCallback(Device); + + if (LatencyTest2Active) + { + renderLatencyPixel(LatencyTest2DrawColor); + } +} + +/******************************************************************/ +void DistortionRenderer::EndFrame(uint32_t frameIndex, bool swapBuffers) +{ + ///QUESTION : Clear the screen? + ///QUESTION : Ensure the screen is the render target + + // D3D9 does not provide any frame timing information. + Timing->CalculateTimewarpTiming(frameIndex); + + // Don't spin if we are explicitly asked not to + if ( (RenderState->DistortionCaps & ovrDistortionCap_TimeWarp) && + (RenderState->DistortionCaps & ovrDistortionCap_TimewarpJitDelay) && + !(RenderState->DistortionCaps & ovrDistortionCap_ProfileNoSpinWaits)) + { + if (!Timing->NeedDistortionTimeMeasurement()) + { + FlushGpuAndWaitTillTime(Timing->GetTimewarpTiming()->JIT_TimewarpTime); + + renderEndFrame(); + } + else + { + // If needed, measure distortion time so that TimeManager can better estimate + // latency-reducing time-warp wait timing. + WaitUntilGpuIdle(); + double distortionStartTime = ovr_GetTimeInSeconds(); + + renderEndFrame(); + + WaitUntilGpuIdle(); + Timing->AddDistortionTimeMeasurement(ovr_GetTimeInSeconds() - distortionStartTime); + } + } + else + { + renderEndFrame(); + } + + if (LatencyTestActive) + { + renderLatencyQuad(LatencyTestDrawColor); + } + + if (swapBuffers) + { + if (SwapChain) + { + SwapChain->Present(NULL, NULL, NULL, NULL, 0); + } + else + { + Device->Present( NULL, NULL, NULL, NULL ); + } + + // Force GPU to flush the scene, resulting in the lowest possible latency. + // It's critical that this flush is *after* present. + // Doesn't need to be done if running through the Oculus driver. + if (RenderState->OurHMDInfo.InCompatibilityMode && + !(RenderState->DistortionCaps & ovrDistortionCap_ProfileNoSpinWaits)) + { + WaitUntilGpuIdle(); + } + } +} + + +void DistortionRenderer::WaitUntilGpuIdle() +{ + if(Device) + { + IDirect3DQuery9* pEventQuery=NULL ; + Device->CreateQuery(D3DQUERYTYPE_EVENT, &pEventQuery) ; + + if(pEventQuery!=NULL) + { + pEventQuery->Issue(D3DISSUE_END) ; + while(S_FALSE == pEventQuery->GetData(NULL, 0, D3DGETDATA_FLUSH)){} + pEventQuery->Release(); + } + } +} + +double DistortionRenderer::FlushGpuAndWaitTillTime(double absTime) +{ + double initialTime = ovr_GetTimeInSeconds(); + if (initialTime >= absTime) + return 0.0; + + WaitUntilGpuIdle(); + + return WaitTillTime(absTime); +} + + +//----------------------------------------------------------------------------- +// Latency Tester Quad + +static void ConvertSRGB(unsigned char c[3]) +{ + for (int i = 0; i < 3; ++i) + { + double d = (double)c[i]; + double ds = d / 255.; + + if (ds <= 0.04045) + { + d /= 12.92; + } + else + { + d = 255. * pow((ds + 0.055) / 1.055, 2.4); + } + + int color = (int)d; + if (color < 0) + { + color = 0; + } + else if (color > 255) + { + color = 255; + } + + c[i] = (unsigned char)color; + } +} + +void DistortionRenderer::renderLatencyQuad(unsigned char* color) +{ + D3DRECT rect = { ResolutionInPixels.w / 4, ResolutionInPixels.h / 4, ResolutionInPixels.w * 3 / 4, ResolutionInPixels.h * 3 / 4 }; + unsigned char c[3] = { color[0], color[1], color[2] }; + + if (RenderState->DistortionCaps & ovrDistortionCap_SRGB) + { + ConvertSRGB(c); + } + + Device->Clear(1, &rect, D3DCLEAR_TARGET, D3DCOLOR_RGBA(c[0], c[1], c[2], 255), 1, 0); +} + +#ifdef OVR_BUILD_DEBUG +#define OVR_LATENCY_PIXEL_SIZE 20 +#else +#define OVR_LATENCY_PIXEL_SIZE 5 +#endif + +void DistortionRenderer::renderLatencyPixel(unsigned char* color) +{ + D3DRECT rect; + + if (RenderState->RenderInfo.OffsetLatencyTester) + { + // TBD: Is this correct? + rect.x1 = ResolutionInPixels.w / 2; + rect.y1 = 0; + } + else + { + rect.x1 = ResolutionInPixels.w - OVR_LATENCY_PIXEL_SIZE; + rect.y1 = 0; + } + + rect.x2 = rect.x1 + OVR_LATENCY_PIXEL_SIZE; + rect.y2 = rect.y1 + OVR_LATENCY_PIXEL_SIZE; + + // TBD: Does (RenderState->RenderInfo.RotateCCW90) affect this? + + unsigned char c[3] = { color[0], color[1], color[2] }; + + if (RenderState->DistortionCaps & ovrDistortionCap_SRGB) + { + ConvertSRGB(c); + } + + Device->Clear(1, &rect, D3DCLEAR_TARGET, D3DCOLOR_RGBA(c[0], c[1], c[2], 255), 1, 0); +} + + +//----------------------------------------------------------------------------- +// GraphicsState + +DistortionRenderer::GraphicsState::GraphicsState(IDirect3DDevice9* d, unsigned distortionCaps) +: Device(d) +, NumSavedStates(0) +, DistortionCaps(distortionCaps) +{ + #if defined(OVR_BUILD_DEBUG) + memset(SavedState, 0, sizeof(SavedState)); + #endif +} + +void DistortionRenderer::GraphicsState::RecordAndSetState(int which, int type, DWORD newValue) +{ + SavedStateType * sst = &SavedState[NumSavedStates++]; + sst->which = which; + sst->type = type; + if (which == 0) + { + Device->GetSamplerState(0, (D3DSAMPLERSTATETYPE)type, &sst->valueToRevertTo); + Device->SetSamplerState(0, (D3DSAMPLERSTATETYPE)type, newValue); + } + else + { + Device->GetRenderState((D3DRENDERSTATETYPE)type, &sst->valueToRevertTo); + Device->SetRenderState((D3DRENDERSTATETYPE)type, newValue); + } +} + +void DistortionRenderer::GraphicsState::Save() +{ + //Record and set rasterizer and sampler states. + + NumSavedStates=0; + + RecordAndSetState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR ); + RecordAndSetState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR ); + RecordAndSetState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR ); + RecordAndSetState(0, D3DSAMP_BORDERCOLOR, 0x000000 ); + RecordAndSetState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_BORDER ); + RecordAndSetState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_BORDER ); + RecordAndSetState(0, D3DSAMP_SRGBTEXTURE, (DistortionCaps & ovrDistortionCap_SRGB) ? TRUE : FALSE ); + + RecordAndSetState(1, D3DRS_MULTISAMPLEANTIALIAS, FALSE ); + RecordAndSetState(1, D3DRS_DITHERENABLE, FALSE ); + RecordAndSetState(1, D3DRS_ZENABLE, FALSE ); + RecordAndSetState(1, D3DRS_ZWRITEENABLE, TRUE ); + RecordAndSetState(1, D3DRS_ZFUNC, D3DCMP_LESSEQUAL ); + RecordAndSetState(1, D3DRS_CULLMODE , D3DCULL_CCW ); + RecordAndSetState(1, D3DRS_ALPHABLENDENABLE , FALSE ); + RecordAndSetState(1, D3DRS_DEPTHBIAS , 0 ); + RecordAndSetState(1, D3DRS_SRCBLEND , D3DBLEND_SRCALPHA ); + RecordAndSetState(1, D3DRS_DESTBLEND , D3DBLEND_INVSRCALPHA ); + RecordAndSetState(1, D3DRS_FILLMODE, D3DFILL_SOLID ); + RecordAndSetState(1, D3DRS_ALPHATESTENABLE, FALSE); + RecordAndSetState(1, D3DRS_DEPTHBIAS , 0 ); + RecordAndSetState(1, D3DRS_LIGHTING, FALSE ); + RecordAndSetState(1, D3DRS_FOGENABLE, FALSE ); + RecordAndSetState(1, D3DRS_SRGBWRITEENABLE, (DistortionCaps & ovrDistortionCap_SRGB) ? TRUE : FALSE ); +} + + +void DistortionRenderer::GraphicsState::Restore() +{ + for (int i = 0; i < NumSavedStates; i++) + { + SavedStateType * sst = &SavedState[i]; + if (sst->which == 0) + { + Device->SetSamplerState(0, (D3DSAMPLERSTATETYPE)sst->type, sst->valueToRevertTo); + } + else + { + Device->SetRenderState((D3DRENDERSTATETYPE)sst->type, sst->valueToRevertTo); + } + } +} + + +}}} // OVR::CAPI::D3D11 + +OVR_RESTORE_MSVC_WARNING() |