зеркало из https://github.com/mozilla/gecko-dev.git
761 строка
25 KiB
C++
761 строка
25 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <math.h>
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#include "prlink.h"
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#include "prmem.h"
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#include "prenv.h"
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#include "gfxPrefs.h"
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#include "nsString.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/gfx/Quaternion.h"
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#ifdef XP_WIN
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#include "../layers/d3d11/CompositorD3D11.h"
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#endif
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#include "gfxVROculus.h"
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#ifndef M_PI
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# define M_PI 3.14159265358979323846
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#endif
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using namespace mozilla::gfx;
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using namespace mozilla::gfx::impl;
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namespace {
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#ifdef OVR_CAPI_LIMITED_MOZILLA
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static pfn_ovr_Initialize ovr_Initialize = nullptr;
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static pfn_ovr_Shutdown ovr_Shutdown = nullptr;
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static pfn_ovr_GetLastErrorInfo ovr_GetLastErrorInfo = nullptr;
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static pfn_ovr_GetVersionString ovr_GetVersionString = nullptr;
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static pfn_ovr_TraceMessage ovr_TraceMessage = nullptr;
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static pfn_ovr_GetHmdDesc ovr_GetHmdDesc = nullptr;
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static pfn_ovr_GetTrackerCount ovr_GetTrackerCount = nullptr;
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static pfn_ovr_GetTrackerDesc ovr_GetTrackerDesc = nullptr;
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static pfn_ovr_Create ovr_Create = nullptr;
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static pfn_ovr_Destroy ovr_Destroy = nullptr;
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static pfn_ovr_GetSessionStatus ovr_GetSessionStatus = nullptr;
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static pfn_ovr_SetTrackingOriginType ovr_SetTrackingOriginType = nullptr;
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static pfn_ovr_GetTrackingOriginType ovr_GetTrackingOriginType = nullptr;
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static pfn_ovr_RecenterTrackingOrigin ovr_RecenterTrackingOrigin = nullptr;
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static pfn_ovr_ClearShouldRecenterFlag ovr_ClearShouldRecenterFlag = nullptr;
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static pfn_ovr_GetTrackingState ovr_GetTrackingState = nullptr;
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static pfn_ovr_GetTrackerPose ovr_GetTrackerPose = nullptr;
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static pfn_ovr_GetInputState ovr_GetInputState = nullptr;
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static pfn_ovr_GetConnectedControllerTypes ovr_GetConnectedControllerTypes = nullptr;
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static pfn_ovr_SetControllerVibration ovr_SetControllerVibration = nullptr;
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static pfn_ovr_GetTextureSwapChainLength ovr_GetTextureSwapChainLength = nullptr;
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static pfn_ovr_GetTextureSwapChainCurrentIndex ovr_GetTextureSwapChainCurrentIndex = nullptr;
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static pfn_ovr_GetTextureSwapChainDesc ovr_GetTextureSwapChainDesc = nullptr;
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static pfn_ovr_CommitTextureSwapChain ovr_CommitTextureSwapChain = nullptr;
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static pfn_ovr_DestroyTextureSwapChain ovr_DestroyTextureSwapChain = nullptr;
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static pfn_ovr_DestroyMirrorTexture ovr_DestroyMirrorTexture = nullptr;
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static pfn_ovr_GetFovTextureSize ovr_GetFovTextureSize = nullptr;
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static pfn_ovr_GetRenderDesc ovr_GetRenderDesc = nullptr;
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static pfn_ovr_SubmitFrame ovr_SubmitFrame = nullptr;
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static pfn_ovr_GetPredictedDisplayTime ovr_GetPredictedDisplayTime = nullptr;
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static pfn_ovr_GetTimeInSeconds ovr_GetTimeInSeconds = nullptr;
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static pfn_ovr_GetBool ovr_GetBool = nullptr;
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static pfn_ovr_SetBool ovr_SetBool = nullptr;
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static pfn_ovr_GetInt ovr_GetInt = nullptr;
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static pfn_ovr_SetInt ovr_SetInt = nullptr;
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static pfn_ovr_GetFloat ovr_GetFloat = nullptr;
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static pfn_ovr_SetFloat ovr_SetFloat = nullptr;
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static pfn_ovr_GetFloatArray ovr_GetFloatArray = nullptr;
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static pfn_ovr_SetFloatArray ovr_SetFloatArray = nullptr;
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static pfn_ovr_GetString ovr_GetString = nullptr;
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static pfn_ovr_SetString ovr_SetString = nullptr;
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#ifdef XP_WIN
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static pfn_ovr_CreateTextureSwapChainDX ovr_CreateTextureSwapChainDX = nullptr;
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static pfn_ovr_GetTextureSwapChainBufferDX ovr_GetTextureSwapChainBufferDX = nullptr;
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static pfn_ovr_CreateMirrorTextureDX ovr_CreateMirrorTextureDX = nullptr;
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static pfn_ovr_GetMirrorTextureBufferDX ovr_GetMirrorTextureBufferDX = nullptr;
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#endif
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static pfn_ovr_CreateTextureSwapChainGL ovr_CreateTextureSwapChainGL = nullptr;
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static pfn_ovr_GetTextureSwapChainBufferGL ovr_GetTextureSwapChainBufferGL = nullptr;
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static pfn_ovr_CreateMirrorTextureGL ovr_CreateMirrorTextureGL = nullptr;
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static pfn_ovr_GetMirrorTextureBufferGL ovr_GetMirrorTextureBufferGL = nullptr;
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#ifdef HAVE_64BIT_BUILD
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#define BUILD_BITS 64
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#else
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#define BUILD_BITS 32
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#endif
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#define OVR_PRODUCT_VERSION 1
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#define OVR_MAJOR_VERSION 3
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#define OVR_MINOR_VERSION 1
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static bool
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InitializeOculusCAPI()
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{
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static PRLibrary *ovrlib = nullptr;
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if (!ovrlib) {
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nsTArray<nsCString> libSearchPaths;
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nsCString libName;
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nsCString searchPath;
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#if defined(_WIN32)
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static const char dirSep = '\\';
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#else
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static const char dirSep = '/';
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#endif
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#if defined(_WIN32)
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static const int pathLen = 260;
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searchPath.SetCapacity(pathLen);
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int realLen = ::GetSystemDirectoryA(searchPath.BeginWriting(), pathLen);
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if (realLen != 0 && realLen < pathLen) {
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searchPath.SetLength(realLen);
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libSearchPaths.AppendElement(searchPath);
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}
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libName.AppendPrintf("LibOVRRT%d_%d.dll", BUILD_BITS, OVR_PRODUCT_VERSION);
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#elif defined(__APPLE__)
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searchPath.Truncate();
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searchPath.AppendPrintf("/Library/Frameworks/LibOVRRT_%d.framework/Versions/%d", OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
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libSearchPaths.AppendElement(searchPath);
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if (PR_GetEnv("HOME")) {
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searchPath.Truncate();
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searchPath.AppendPrintf("%s/Library/Frameworks/LibOVRRT_%d.framework/Versions/%d", PR_GetEnv("HOME"), OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
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libSearchPaths.AppendElement(searchPath);
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}
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// The following will match the va_list overload of AppendPrintf if the product version is 0
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// That's bad times.
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//libName.AppendPrintf("LibOVRRT_%d", OVR_PRODUCT_VERSION);
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libName.Append("LibOVRRT_");
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libName.AppendInt(OVR_PRODUCT_VERSION);
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#else
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libSearchPaths.AppendElement(nsCString("/usr/local/lib"));
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libSearchPaths.AppendElement(nsCString("/usr/lib"));
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libName.AppendPrintf("libOVRRT%d_%d.so.%d", BUILD_BITS, OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
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#endif
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// If the pref is present, we override libName
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nsAdoptingCString prefLibPath = mozilla::Preferences::GetCString("dom.vr.ovr_lib_path");
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if (prefLibPath && prefLibPath.get()) {
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libSearchPaths.InsertElementsAt(0, 1, prefLibPath);
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}
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nsAdoptingCString prefLibName = mozilla::Preferences::GetCString("dom.vr.ovr_lib_name");
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if (prefLibName && prefLibName.get()) {
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libName.Assign(prefLibName);
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}
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// search the path/module dir
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libSearchPaths.InsertElementsAt(0, 1, nsCString());
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// If the env var is present, we override libName
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if (PR_GetEnv("OVR_LIB_PATH")) {
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searchPath = PR_GetEnv("OVR_LIB_PATH");
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libSearchPaths.InsertElementsAt(0, 1, searchPath);
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}
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if (PR_GetEnv("OVR_LIB_NAME")) {
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libName = PR_GetEnv("OVR_LIB_NAME");
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}
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for (uint32_t i = 0; i < libSearchPaths.Length(); ++i) {
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nsCString& libPath = libSearchPaths[i];
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nsCString fullName;
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if (libPath.Length() == 0) {
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fullName.Assign(libName);
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} else {
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fullName.AppendPrintf("%s%c%s", libPath.BeginReading(), dirSep, libName.BeginReading());
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}
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ovrlib = PR_LoadLibrary(fullName.BeginReading());
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if (ovrlib)
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break;
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}
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if (!ovrlib) {
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return false;
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}
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}
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// was it already initialized?
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if (ovr_Initialize)
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return true;
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#define REQUIRE_FUNCTION(_x) do { \
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*(void **)&_x = (void *) PR_FindSymbol(ovrlib, #_x); \
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if (!_x) { printf_stderr(#_x " symbol missing\n"); goto fail; } \
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} while (0)
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REQUIRE_FUNCTION(ovr_Initialize);
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REQUIRE_FUNCTION(ovr_Shutdown);
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REQUIRE_FUNCTION(ovr_GetLastErrorInfo);
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REQUIRE_FUNCTION(ovr_GetVersionString);
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REQUIRE_FUNCTION(ovr_TraceMessage);
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REQUIRE_FUNCTION(ovr_GetHmdDesc);
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REQUIRE_FUNCTION(ovr_GetTrackerCount);
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REQUIRE_FUNCTION(ovr_GetTrackerDesc);
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REQUIRE_FUNCTION(ovr_Create);
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REQUIRE_FUNCTION(ovr_Destroy);
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REQUIRE_FUNCTION(ovr_GetSessionStatus);
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REQUIRE_FUNCTION(ovr_SetTrackingOriginType);
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REQUIRE_FUNCTION(ovr_GetTrackingOriginType);
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REQUIRE_FUNCTION(ovr_RecenterTrackingOrigin);
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REQUIRE_FUNCTION(ovr_ClearShouldRecenterFlag);
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REQUIRE_FUNCTION(ovr_GetTrackingState);
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REQUIRE_FUNCTION(ovr_GetTrackerPose);
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REQUIRE_FUNCTION(ovr_GetInputState);
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REQUIRE_FUNCTION(ovr_GetConnectedControllerTypes);
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REQUIRE_FUNCTION(ovr_SetControllerVibration);
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REQUIRE_FUNCTION(ovr_GetTextureSwapChainLength);
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REQUIRE_FUNCTION(ovr_GetTextureSwapChainCurrentIndex);
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REQUIRE_FUNCTION(ovr_GetTextureSwapChainDesc);
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REQUIRE_FUNCTION(ovr_CommitTextureSwapChain);
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REQUIRE_FUNCTION(ovr_DestroyTextureSwapChain);
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REQUIRE_FUNCTION(ovr_DestroyMirrorTexture);
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REQUIRE_FUNCTION(ovr_GetFovTextureSize);
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REQUIRE_FUNCTION(ovr_GetRenderDesc);
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REQUIRE_FUNCTION(ovr_SubmitFrame);
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REQUIRE_FUNCTION(ovr_GetPredictedDisplayTime);
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REQUIRE_FUNCTION(ovr_GetTimeInSeconds);
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REQUIRE_FUNCTION(ovr_GetBool);
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REQUIRE_FUNCTION(ovr_SetBool);
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REQUIRE_FUNCTION(ovr_GetInt);
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REQUIRE_FUNCTION(ovr_SetInt);
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REQUIRE_FUNCTION(ovr_GetFloat);
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REQUIRE_FUNCTION(ovr_SetFloat);
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REQUIRE_FUNCTION(ovr_GetFloatArray);
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REQUIRE_FUNCTION(ovr_SetFloatArray);
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REQUIRE_FUNCTION(ovr_GetString);
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REQUIRE_FUNCTION(ovr_SetString);
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#ifdef XP_WIN
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REQUIRE_FUNCTION(ovr_CreateTextureSwapChainDX);
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REQUIRE_FUNCTION(ovr_GetTextureSwapChainBufferDX);
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REQUIRE_FUNCTION(ovr_CreateMirrorTextureDX);
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REQUIRE_FUNCTION(ovr_GetMirrorTextureBufferDX);
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#endif
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REQUIRE_FUNCTION(ovr_CreateTextureSwapChainGL);
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REQUIRE_FUNCTION(ovr_GetTextureSwapChainBufferGL);
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REQUIRE_FUNCTION(ovr_CreateMirrorTextureGL);
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REQUIRE_FUNCTION(ovr_GetMirrorTextureBufferGL);
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#undef REQUIRE_FUNCTION
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return true;
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fail:
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ovr_Initialize = nullptr;
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return false;
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}
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#else
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#include <OVR_Version.h>
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// we're statically linked; it's available
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static bool InitializeOculusCAPI()
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{
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return true;
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}
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#endif
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ovrFovPort
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ToFovPort(const gfx::VRFieldOfView& aFOV)
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{
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ovrFovPort fovPort;
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fovPort.LeftTan = tan(aFOV.leftDegrees * M_PI / 180.0);
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fovPort.RightTan = tan(aFOV.rightDegrees * M_PI / 180.0);
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fovPort.UpTan = tan(aFOV.upDegrees * M_PI / 180.0);
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fovPort.DownTan = tan(aFOV.downDegrees * M_PI / 180.0);
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return fovPort;
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}
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gfx::VRFieldOfView
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FromFovPort(const ovrFovPort& aFOV)
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{
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gfx::VRFieldOfView fovInfo;
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fovInfo.leftDegrees = atan(aFOV.LeftTan) * 180.0 / M_PI;
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fovInfo.rightDegrees = atan(aFOV.RightTan) * 180.0 / M_PI;
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fovInfo.upDegrees = atan(aFOV.UpTan) * 180.0 / M_PI;
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fovInfo.downDegrees = atan(aFOV.DownTan) * 180.0 / M_PI;
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return fovInfo;
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}
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} // namespace
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HMDInfoOculus::HMDInfoOculus(ovrSession aSession)
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: VRHMDInfo(VRHMDType::Oculus, false)
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, mSession(aSession)
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, mInputFrameID(0)
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{
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MOZ_ASSERT(sizeof(HMDInfoOculus::DistortionVertex) == sizeof(VRDistortionVertex),
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"HMDInfoOculus::DistortionVertex must match the size of VRDistortionVertex");
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MOZ_COUNT_CTOR_INHERITED(HMDInfoOculus, VRHMDInfo);
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mDeviceInfo.mDeviceName.AssignLiteral("Oculus VR HMD");
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mDesc = ovr_GetHmdDesc(aSession);
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mDeviceInfo.mSupportedSensorBits = VRStateValidFlags::State_None;
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if (mDesc.AvailableTrackingCaps & ovrTrackingCap_Orientation) {
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mDeviceInfo.mSupportedSensorBits |= VRStateValidFlags::State_Orientation;
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}
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if (mDesc.AvailableTrackingCaps & ovrTrackingCap_Position) {
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mDeviceInfo.mSupportedSensorBits |= VRStateValidFlags::State_Position;
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}
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mDeviceInfo.mRecommendedEyeFOV[VRDeviceInfo::Eye_Left] = FromFovPort(mDesc.DefaultEyeFov[ovrEye_Left]);
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mDeviceInfo.mRecommendedEyeFOV[VRDeviceInfo::Eye_Right] = FromFovPort(mDesc.DefaultEyeFov[ovrEye_Right]);
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mDeviceInfo.mMaximumEyeFOV[VRDeviceInfo::Eye_Left] = FromFovPort(mDesc.MaxEyeFov[ovrEye_Left]);
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mDeviceInfo.mMaximumEyeFOV[VRDeviceInfo::Eye_Right] = FromFovPort(mDesc.MaxEyeFov[ovrEye_Right]);
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uint32_t w = mDesc.Resolution.w;
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uint32_t h = mDesc.Resolution.h;
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mDeviceInfo.mScreenRect.x = 0;
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mDeviceInfo.mScreenRect.y = 0;
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mDeviceInfo.mScreenRect.width = std::max(w, h);
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mDeviceInfo.mScreenRect.height = std::min(w, h);
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mDeviceInfo.mIsFakeScreen = true;
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SetFOV(mDeviceInfo.mRecommendedEyeFOV[VRDeviceInfo::Eye_Left], mDeviceInfo.mRecommendedEyeFOV[VRDeviceInfo::Eye_Right], 0.01, 10000.0);
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for (int i = 0; i < kMaxLatencyFrames; i++) {
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mLastSensorState[i].Clear();
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}
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}
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void
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HMDInfoOculus::Destroy()
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{
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if (mSession) {
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ovr_Destroy(mSession);
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mSession = nullptr;
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}
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}
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bool
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HMDInfoOculus::SetFOV(const gfx::VRFieldOfView& aFOVLeft, const gfx::VRFieldOfView& aFOVRight,
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double zNear, double zFar)
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{
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float pixelsPerDisplayPixel = 1.0;
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ovrSizei texSize[2];
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// get eye parameters and create the mesh
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for (uint32_t eye = 0; eye < VRDeviceInfo::NumEyes; eye++) {
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mDeviceInfo.mEyeFOV[eye] = eye == 0 ? aFOVLeft : aFOVRight;
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mFOVPort[eye] = ToFovPort(mDeviceInfo.mEyeFOV[eye]);
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ovrEyeRenderDesc renderDesc = ovr_GetRenderDesc(mSession, (ovrEyeType)eye, mFOVPort[eye]);
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// As of Oculus 0.6.0, the HmdToEyeOffset values are correct and don't need to be negated.
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mDeviceInfo.mEyeTranslation[eye] = Point3D(renderDesc.HmdToEyeOffset.x, renderDesc.HmdToEyeOffset.y, renderDesc.HmdToEyeOffset.z);
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// note that we are using a right-handed coordinate system here, to match CSS
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mDeviceInfo.mEyeProjectionMatrix[eye] = mDeviceInfo.mEyeFOV[eye].ConstructProjectionMatrix(zNear, zFar, true);
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texSize[eye] = ovr_GetFovTextureSize(mSession, (ovrEyeType)eye, mFOVPort[eye], pixelsPerDisplayPixel);
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}
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// take the max of both for eye resolution
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mDeviceInfo.mEyeResolution.width = std::max(texSize[VRDeviceInfo::Eye_Left].w, texSize[VRDeviceInfo::Eye_Right].w);
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mDeviceInfo.mEyeResolution.height = std::max(texSize[VRDeviceInfo::Eye_Left].h, texSize[VRDeviceInfo::Eye_Right].h);
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mConfiguration.hmdType = mDeviceInfo.mType;
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mConfiguration.value = 0;
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mConfiguration.fov[0] = aFOVLeft;
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mConfiguration.fov[1] = aFOVRight;
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return true;
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}
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void
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HMDInfoOculus::FillDistortionConstants(uint32_t whichEye,
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const IntSize& textureSize,
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const IntRect& eyeViewport,
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const Size& destViewport,
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const Rect& destRect,
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VRDistortionConstants& values)
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{
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}
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bool
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HMDInfoOculus::KeepSensorTracking()
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{
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// Oculus PC SDK 0.8 and newer enable tracking by default
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return true;
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}
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void
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HMDInfoOculus::NotifyVsync(const mozilla::TimeStamp& aVsyncTimestamp)
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{
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++mInputFrameID;
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}
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void
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HMDInfoOculus::ZeroSensor()
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{
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ovr_RecenterTrackingOrigin(mSession);
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}
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VRHMDSensorState
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HMDInfoOculus::GetSensorState()
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{
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VRHMDSensorState result;
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double frameTiming = 0.0f;
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if (gfxPrefs::VRPosePredictionEnabled()) {
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frameTiming = ovr_GetPredictedDisplayTime(mSession, mInputFrameID);
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}
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result = GetSensorState(frameTiming);
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result.inputFrameID = mInputFrameID;
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mLastSensorState[mInputFrameID % kMaxLatencyFrames] = result;
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return result;
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}
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VRHMDSensorState
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HMDInfoOculus::GetImmediateSensorState()
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{
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return GetSensorState(0.0);
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}
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VRHMDSensorState
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HMDInfoOculus::GetSensorState(double timeOffset)
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{
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VRHMDSensorState result;
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result.Clear();
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ovrTrackingState state = ovr_GetTrackingState(mSession, timeOffset, true);
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ovrPoseStatef& pose(state.HeadPose);
|
|
|
|
result.timestamp = pose.TimeInSeconds;
|
|
|
|
if (state.StatusFlags & ovrStatus_OrientationTracked) {
|
|
result.flags |= VRStateValidFlags::State_Orientation;
|
|
|
|
result.orientation[0] = pose.ThePose.Orientation.x;
|
|
result.orientation[1] = pose.ThePose.Orientation.y;
|
|
result.orientation[2] = pose.ThePose.Orientation.z;
|
|
result.orientation[3] = pose.ThePose.Orientation.w;
|
|
|
|
result.angularVelocity[0] = pose.AngularVelocity.x;
|
|
result.angularVelocity[1] = pose.AngularVelocity.y;
|
|
result.angularVelocity[2] = pose.AngularVelocity.z;
|
|
|
|
result.angularAcceleration[0] = pose.AngularAcceleration.x;
|
|
result.angularAcceleration[1] = pose.AngularAcceleration.y;
|
|
result.angularAcceleration[2] = pose.AngularAcceleration.z;
|
|
}
|
|
|
|
if (state.StatusFlags & ovrStatus_PositionTracked) {
|
|
result.flags |= VRStateValidFlags::State_Position;
|
|
|
|
result.position[0] = pose.ThePose.Position.x;
|
|
result.position[1] = pose.ThePose.Position.y;
|
|
result.position[2] = pose.ThePose.Position.z;
|
|
|
|
result.linearVelocity[0] = pose.LinearVelocity.x;
|
|
result.linearVelocity[1] = pose.LinearVelocity.y;
|
|
result.linearVelocity[2] = pose.LinearVelocity.z;
|
|
|
|
result.linearAcceleration[0] = pose.LinearAcceleration.x;
|
|
result.linearAcceleration[1] = pose.LinearAcceleration.y;
|
|
result.linearAcceleration[2] = pose.LinearAcceleration.z;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
struct RenderTargetSetOculus : public VRHMDRenderingSupport::RenderTargetSet
|
|
{
|
|
RenderTargetSetOculus(ovrSession aSession,
|
|
const IntSize& aSize,
|
|
HMDInfoOculus *aHMD,
|
|
ovrTextureSwapChain aTS)
|
|
: hmd(aHMD)
|
|
, textureSet(aTS)
|
|
, session(aSession)
|
|
{
|
|
size = aSize;
|
|
}
|
|
|
|
already_AddRefed<layers::CompositingRenderTarget> GetNextRenderTarget() override {
|
|
int currentRenderTarget = 0;
|
|
DebugOnly<ovrResult> orv = ovr_GetTextureSwapChainCurrentIndex(session, textureSet, ¤tRenderTarget);
|
|
MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainCurrentIndex failed.");
|
|
|
|
renderTargets[currentRenderTarget]->ClearOnBind();
|
|
RefPtr<layers::CompositingRenderTarget> rt = renderTargets[currentRenderTarget];
|
|
return rt.forget();
|
|
}
|
|
|
|
void Destroy() {
|
|
ovr_DestroyTextureSwapChain(session, textureSet);
|
|
hmd = nullptr;
|
|
textureSet = nullptr;
|
|
}
|
|
|
|
~RenderTargetSetOculus() {
|
|
Destroy();
|
|
}
|
|
|
|
RefPtr<HMDInfoOculus> hmd;
|
|
ovrTextureSwapChain textureSet;
|
|
ovrSession session;
|
|
};
|
|
|
|
#ifdef XP_WIN
|
|
class BasicTextureSourceD3D11 : public layers::TextureSourceD3D11
|
|
{
|
|
public:
|
|
BasicTextureSourceD3D11(ID3D11Texture2D *aTexture, const IntSize& aSize) {
|
|
mTexture = aTexture;
|
|
mSize = aSize;
|
|
}
|
|
};
|
|
|
|
struct RenderTargetSetD3D11 : public RenderTargetSetOculus
|
|
{
|
|
RenderTargetSetD3D11(ovrSession aSession,
|
|
layers::CompositorD3D11 *aCompositor,
|
|
const IntSize& aSize,
|
|
HMDInfoOculus *aHMD,
|
|
ovrTextureSwapChain aTS)
|
|
: RenderTargetSetOculus(aSession, aSize, aHMD, aTS)
|
|
{
|
|
compositor = aCompositor;
|
|
|
|
int textureCount = 0;
|
|
DebugOnly<ovrResult> orv = ovr_GetTextureSwapChainLength(session, aTS, &textureCount);
|
|
MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainLength failed.");
|
|
|
|
renderTargets.SetLength(textureCount);
|
|
|
|
for (int i = 0; i < textureCount; ++i) {
|
|
|
|
RefPtr<layers::CompositingRenderTargetD3D11> rt;
|
|
|
|
ID3D11Texture2D* texture = nullptr;
|
|
orv = ovr_GetTextureSwapChainBufferDX(session, aTS, i, IID_PPV_ARGS(&texture));
|
|
MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainBufferDX failed.");
|
|
rt = new layers::CompositingRenderTargetD3D11(texture, IntPoint(0, 0), DXGI_FORMAT_B8G8R8A8_UNORM);
|
|
rt->SetSize(size);
|
|
renderTargets[i] = rt;
|
|
texture->Release();
|
|
}
|
|
}
|
|
};
|
|
#endif
|
|
|
|
already_AddRefed<VRHMDRenderingSupport::RenderTargetSet>
|
|
HMDInfoOculus::CreateRenderTargetSet(layers::Compositor *aCompositor, const IntSize& aSize)
|
|
{
|
|
#ifdef XP_WIN
|
|
if (aCompositor->GetBackendType() == layers::LayersBackend::LAYERS_D3D11)
|
|
{
|
|
layers::CompositorD3D11 *comp11 = static_cast<layers::CompositorD3D11*>(aCompositor);
|
|
|
|
ovrTextureSwapChainDesc desc;
|
|
memset(&desc, 0, sizeof(desc));
|
|
desc.Type = ovrTexture_2D;
|
|
desc.ArraySize = 1;
|
|
desc.Format = OVR_FORMAT_B8G8R8A8_UNORM_SRGB;
|
|
desc.Width = aSize.width;
|
|
desc.Height = aSize.height;
|
|
desc.MipLevels = 1;
|
|
desc.SampleCount = 1;
|
|
desc.StaticImage = false;
|
|
desc.MiscFlags = ovrTextureMisc_DX_Typeless;
|
|
desc.BindFlags = ovrTextureBind_DX_RenderTarget;
|
|
|
|
ovrTextureSwapChain ts = nullptr;
|
|
|
|
ovrResult orv = ovr_CreateTextureSwapChainDX(mSession, comp11->GetDevice(), &desc, &ts);
|
|
if (orv != ovrSuccess) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<RenderTargetSetD3D11> rts = new RenderTargetSetD3D11(mSession, comp11, aSize, this, ts);
|
|
return rts.forget();
|
|
}
|
|
#endif
|
|
|
|
if (aCompositor->GetBackendType() == layers::LayersBackend::LAYERS_OPENGL) {
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void
|
|
HMDInfoOculus::DestroyRenderTargetSet(RenderTargetSet *aRTSet)
|
|
{
|
|
RenderTargetSetOculus *rts = static_cast<RenderTargetSetOculus*>(aRTSet);
|
|
rts->Destroy();
|
|
}
|
|
|
|
void
|
|
HMDInfoOculus::SubmitFrame(RenderTargetSet *aRTSet, int32_t aInputFrameID)
|
|
{
|
|
RenderTargetSetOculus *rts = static_cast<RenderTargetSetOculus*>(aRTSet);
|
|
MOZ_ASSERT(rts->hmd != nullptr);
|
|
MOZ_ASSERT(rts->textureSet != nullptr);
|
|
MOZ_ASSERT(aInputFrameID >= 0);
|
|
if (aInputFrameID < 0) {
|
|
// Sanity check to prevent invalid memory access on builds with assertions
|
|
// disabled.
|
|
aInputFrameID = 0;
|
|
}
|
|
ovrResult orv = ovr_CommitTextureSwapChain(mSession, rts->textureSet);
|
|
if (orv != ovrSuccess) {
|
|
printf_stderr("ovr_CommitTextureSwapChain failed.\n");
|
|
}
|
|
|
|
VRHMDSensorState sensorState = mLastSensorState[aInputFrameID % kMaxLatencyFrames];
|
|
// It is possible to get a cache miss on mLastSensorState if latency is
|
|
// longer than kMaxLatencyFrames. An optimization would be to find a frame
|
|
// that is closer than the one selected with the modulus.
|
|
// If we hit this; however, latency is already so high that the site is
|
|
// un-viewable and a more accurate pose prediction is not likely to
|
|
// compensate.
|
|
ovrLayerEyeFov layer;
|
|
memset(&layer, 0, sizeof(layer));
|
|
layer.Header.Type = ovrLayerType_EyeFov;
|
|
layer.Header.Flags = 0;
|
|
layer.ColorTexture[0] = rts->textureSet;
|
|
layer.ColorTexture[1] = nullptr;
|
|
layer.Fov[0] = mFOVPort[0];
|
|
layer.Fov[1] = mFOVPort[1];
|
|
layer.Viewport[0].Pos.x = 0;
|
|
layer.Viewport[0].Pos.y = 0;
|
|
layer.Viewport[0].Size.w = rts->size.width / 2;
|
|
layer.Viewport[0].Size.h = rts->size.height;
|
|
layer.Viewport[1].Pos.x = rts->size.width / 2;
|
|
layer.Viewport[1].Pos.y = 0;
|
|
layer.Viewport[1].Size.w = rts->size.width / 2;
|
|
layer.Viewport[1].Size.h = rts->size.height;
|
|
|
|
const Point3D& l = rts->hmd->mDeviceInfo.mEyeTranslation[0];
|
|
const Point3D& r = rts->hmd->mDeviceInfo.mEyeTranslation[1];
|
|
const ovrVector3f hmdToEyeViewOffset[2] = { { l.x, l.y, l.z },
|
|
{ r.x, r.y, r.z } };
|
|
|
|
for (uint32_t i = 0; i < 2; ++i) {
|
|
gfx::Quaternion o(sensorState.orientation[0],
|
|
sensorState.orientation[1],
|
|
sensorState.orientation[2],
|
|
sensorState.orientation[3]);
|
|
Point3D vo(hmdToEyeViewOffset[i].x, hmdToEyeViewOffset[i].y, hmdToEyeViewOffset[i].z);
|
|
Point3D p = o.RotatePoint(vo);
|
|
|
|
layer.RenderPose[i].Orientation.x = o.x;
|
|
layer.RenderPose[i].Orientation.y = o.y;
|
|
layer.RenderPose[i].Orientation.z = o.z;
|
|
layer.RenderPose[i].Orientation.w = o.w;
|
|
layer.RenderPose[i].Position.x = p.x + sensorState.position[0];
|
|
layer.RenderPose[i].Position.y = p.y + sensorState.position[1];
|
|
layer.RenderPose[i].Position.z = p.z + sensorState.position[2];
|
|
}
|
|
|
|
ovrLayerHeader *layers = &layer.Header;
|
|
orv = ovr_SubmitFrame(mSession, aInputFrameID, nullptr, &layers, 1);
|
|
//printf_stderr("Submitted frame %d, result: %d\n", rts->textureSet->CurrentIndex, orv);
|
|
if (orv != ovrSuccess) {
|
|
printf_stderr("ovr_SubmitFrame failed.\n");
|
|
}
|
|
}
|
|
|
|
/*static*/ already_AddRefed<VRHMDManagerOculus>
|
|
VRHMDManagerOculus::Create()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (!gfxPrefs::VREnabled() || !gfxPrefs::VROculusEnabled())
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
if (!InitializeOculusCAPI()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<VRHMDManagerOculus> manager = new VRHMDManagerOculus();
|
|
return manager.forget();
|
|
}
|
|
|
|
bool
|
|
VRHMDManagerOculus::Init()
|
|
{
|
|
if (!mOculusInitialized) {
|
|
nsIThread* thread = nullptr;
|
|
NS_GetCurrentThread(&thread);
|
|
mOculusThread = already_AddRefed<nsIThread>(thread);
|
|
|
|
ovrInitParams params;
|
|
memset(¶ms, 0, sizeof(params));
|
|
params.Flags = ovrInit_RequestVersion;
|
|
params.RequestedMinorVersion = OVR_MINOR_VERSION;
|
|
params.LogCallback = nullptr;
|
|
params.ConnectionTimeoutMS = 0;
|
|
|
|
ovrResult orv = ovr_Initialize(¶ms);
|
|
|
|
if (orv == ovrSuccess) {
|
|
mOculusInitialized = true;
|
|
}
|
|
}
|
|
|
|
return mOculusInitialized;
|
|
}
|
|
|
|
void
|
|
VRHMDManagerOculus::Destroy()
|
|
{
|
|
if(mOculusInitialized) {
|
|
MOZ_ASSERT(NS_GetCurrentThread() == mOculusThread);
|
|
mOculusThread = nullptr;
|
|
|
|
mHMDInfo = nullptr;
|
|
|
|
ovr_Shutdown();
|
|
mOculusInitialized = false;
|
|
}
|
|
}
|
|
|
|
void
|
|
VRHMDManagerOculus::GetHMDs(nsTArray<RefPtr<VRHMDInfo>>& aHMDResult)
|
|
{
|
|
if (!mOculusInitialized) {
|
|
return;
|
|
}
|
|
|
|
// ovr_Create can be slow when no HMD is present and we wish
|
|
// to keep the same oculus session when possible, so we detect
|
|
// presence of an HMD with ovr_GetHmdDesc before calling ovr_Create
|
|
ovrHmdDesc desc = ovr_GetHmdDesc(NULL);
|
|
if (desc.Type == ovrHmd_None) {
|
|
// No HMD connected.
|
|
mHMDInfo = nullptr;
|
|
} else if (mHMDInfo == nullptr) {
|
|
// HMD Detected
|
|
ovrSession session;
|
|
ovrGraphicsLuid luid;
|
|
ovrResult orv = ovr_Create(&session, &luid);
|
|
if (orv == ovrSuccess) {
|
|
mHMDInfo = new HMDInfoOculus(session);
|
|
}
|
|
}
|
|
|
|
if (mHMDInfo) {
|
|
aHMDResult.AppendElement(mHMDInfo);
|
|
}
|
|
}
|