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@ -9,7 +9,7 @@ |
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* PLATFORM_ANDROID - Only OpenGL ES 2.0 devices |
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* PLATFORM_RPI - Rapsberry Pi (tested on Raspbian) |
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* PLATFORM_WEB - Emscripten, HTML5 |
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* PLATFORM_OCULUS - Oculus Rift CV1 (with desktop mirror) |
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* Oculus Rift CV1 (with desktop mirror) - View [rlgl] module to enable it |
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* |
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* On PLATFORM_DESKTOP, the external lib GLFW3 (www.glfw.com) is used to manage graphic |
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* device, OpenGL context and input on multiple operating systems (Windows, Linux, OSX). |
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@ -54,14 +54,6 @@ |
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#include <string.h> // String function definitions, memset() |
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#include <errno.h> // Macros for reporting and retrieving error conditions through error codes |
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#if defined(PLATFORM_OCULUS) |
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#define PLATFORM_DESKTOP // Enable PLATFORM_DESKTOP code-base |
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#endif |
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#if defined(PLATFORM_OCULUS) |
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#include "../examples/oculus_glfw_sample/OculusSDK/LibOVR/Include/OVR_CAPI_GL.h" // Oculus SDK for OpenGL |
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#endif |
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) |
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//#define GLFW_INCLUDE_NONE // Disable the standard OpenGL header inclusion on GLFW3 |
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#include <GLFW/glfw3.h> // GLFW3 library: Windows, OpenGL context and Input management |
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@ -134,31 +126,7 @@ |
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//---------------------------------------------------------------------------------- |
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// Types and Structures Definition |
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//---------------------------------------------------------------------------------- |
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#if defined(PLATFORM_OCULUS) |
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typedef struct OculusBuffer { |
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ovrTextureSwapChain textureChain; |
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GLuint depthId; |
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GLuint fboId; |
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int width; |
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int height; |
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} OculusBuffer; |
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typedef struct OculusMirror { |
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ovrMirrorTexture texture; |
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GLuint fboId; |
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int width; |
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int height; |
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} OculusMirror; |
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typedef struct OculusLayer { |
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ovrViewScaleDesc viewScaleDesc; |
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ovrLayerEyeFov eyeLayer; // layer 0 |
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//ovrLayerQuad quadLayer; // TODO: layer 1: '2D' quad for GUI |
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Matrix eyeProjections[2]; |
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int width; |
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int height; |
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} OculusLayer; |
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#endif |
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// ... |
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//---------------------------------------------------------------------------------- |
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// Global Variables Definition |
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@ -213,17 +181,6 @@ static uint64_t baseTime; // Base time measure for hi-res timer |
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static bool windowShouldClose = false; // Flag to set window for closing |
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#endif |
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#if defined(PLATFORM_OCULUS) |
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// OVR device variables |
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static ovrSession session; // Oculus session (pointer to ovrHmdStruct) |
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static ovrHmdDesc hmdDesc; // Oculus device descriptor parameters |
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static ovrGraphicsLuid luid; // Oculus locally unique identifier for the program (64 bit) |
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static OculusLayer layer; // Oculus drawing layer (similar to photoshop) |
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static OculusBuffer buffer; // Oculus internal buffers (texture chain and fbo) |
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static OculusMirror mirror; // Oculus mirror texture and fbo |
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static unsigned int frameIndex = 0; // Oculus frames counter, used to discard frames from chain |
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#endif |
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static unsigned int displayWidth, displayHeight; // Display width and height (monitor, device-screen, LCD, ...) |
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static int screenWidth, screenHeight; // Screen width and height (used render area) |
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static int renderWidth, renderHeight; // Framebuffer width and height (render area) |
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@ -233,7 +190,6 @@ static int renderOffsetX = 0; // Offset X from render area (must b |
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static int renderOffsetY = 0; // Offset Y from render area (must be divided by 2) |
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static bool fullscreen = false; // Fullscreen mode (useful only for PLATFORM_DESKTOP) |
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static Matrix downscaleView; // Matrix to downscale view (in case screen size bigger than display size) |
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static Matrix cameraView; // Store camera view matrix (required for Oculus Rift) |
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB) |
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static const char *windowTitle; // Window text title... |
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@ -332,19 +288,6 @@ static void InitGamepad(void); // Init raw gamepad inpu |
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static void *GamepadThread(void *arg); // Mouse reading thread |
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#endif |
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#if defined(PLATFORM_OCULUS) |
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// Oculus Rift functions |
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static Matrix FromOvrMatrix(ovrMatrix4f ovrM); |
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static OculusBuffer LoadOculusBuffer(ovrSession session, int width, int height); |
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static void UnloadOculusBuffer(ovrSession session, OculusBuffer buffer); |
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static void SetOculusBuffer(ovrSession session, OculusBuffer buffer); |
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static void UnsetOculusBuffer(OculusBuffer buffer); |
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static OculusMirror LoadOculusMirror(ovrSession session, int width, int height); // Load Oculus mirror buffers |
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static void UnloadOculusMirror(ovrSession session, OculusMirror mirror); // Unload Oculus mirror buffers |
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static void BlitOculusMirror(ovrSession session, OculusMirror mirror); |
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static OculusLayer InitOculusLayer(ovrSession session); |
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#endif |
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//---------------------------------------------------------------------------------- |
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// Module Functions Definition - Window and OpenGL Context Functions |
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//---------------------------------------------------------------------------------- |
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@ -393,11 +336,6 @@ void InitWindow(int width, int height, const char *title) |
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//emscripten_set_gamepaddisconnected_callback(NULL, 1, EmscriptenInputCallback); |
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#endif |
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#if defined(PLATFORM_OCULUS) |
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// Recenter OVR tracking origin |
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ovr_RecenterTrackingOrigin(session); |
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#endif |
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mousePosition.x = (float)screenWidth/2.0f; |
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mousePosition.y = (float)screenHeight/2.0f; |
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@ -512,64 +450,6 @@ void CloseWindow(void) |
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TraceLog(INFO, "Window closed successfully"); |
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} |
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#if defined(PLATFORM_OCULUS) |
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// Init Oculus Rift device |
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// NOTE: Device initialization should be done before window creation? |
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void InitOculusDevice(void) |
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{ |
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// Initialize Oculus device |
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ovrResult result = ovr_Initialize(NULL); |
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if (OVR_FAILURE(result)) TraceLog(WARNING, "OVR: Could not initialize Oculus device"); |
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result = ovr_Create(&session, &luid); |
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if (OVR_FAILURE(result)) |
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{ |
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TraceLog(WARNING, "OVR: Could not create Oculus session"); |
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ovr_Shutdown(); |
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} |
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hmdDesc = ovr_GetHmdDesc(session); |
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TraceLog(INFO, "OVR: Product Name: %s", hmdDesc.ProductName); |
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TraceLog(INFO, "OVR: Manufacturer: %s", hmdDesc.Manufacturer); |
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TraceLog(INFO, "OVR: Product ID: %i", hmdDesc.ProductId); |
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TraceLog(INFO, "OVR: Product Type: %i", hmdDesc.Type); |
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//TraceLog(INFO, "OVR: Serial Number: %s", hmdDesc.SerialNumber); |
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TraceLog(INFO, "OVR: Resolution: %ix%i", hmdDesc.Resolution.w, hmdDesc.Resolution.h); |
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// NOTE: Oculus mirror is set to defined screenWidth and screenHeight... |
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// ...ideally, it should be (hmdDesc.Resolution.w/2, hmdDesc.Resolution.h/2) |
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// Initialize Oculus Buffers |
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layer = InitOculusLayer(session); |
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buffer = LoadOculusBuffer(session, layer.width, layer.height); |
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mirror = LoadOculusMirror(session, screenWidth, screenHeight); |
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layer.eyeLayer.ColorTexture[0] = buffer.textureChain; //SetOculusLayerTexture(eyeLayer, buffer.textureChain); |
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} |
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// Close Oculus Rift device |
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void CloseOculusDevice(void) |
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{ |
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UnloadOculusMirror(session, mirror); // Unload Oculus mirror buffer |
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UnloadOculusBuffer(session, buffer); // Unload Oculus texture buffers |
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ovr_Destroy(session); // Free Oculus session data |
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ovr_Shutdown(); // Close Oculus device connection |
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} |
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// Update Oculus Rift tracking (position and orientation) |
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void UpdateOculusTracking(void) |
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{ |
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frameIndex++; |
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ovrPosef eyePoses[2]; |
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ovr_GetEyePoses(session, frameIndex, ovrTrue, layer.viewScaleDesc.HmdToEyeOffset, eyePoses, &layer.eyeLayer.SensorSampleTime); |
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layer.eyeLayer.RenderPose[0] = eyePoses[0]; |
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layer.eyeLayer.RenderPose[1] = eyePoses[1]; |
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} |
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#endif |
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// Detect if KEY_ESCAPE pressed or Close icon pressed |
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bool WindowShouldClose(void) |
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{ |
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@ -638,10 +518,6 @@ void BeginDrawing(void) |
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currentTime = GetTime(); // Number of elapsed seconds since InitTimer() was called |
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updateTime = currentTime - previousTime; |
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previousTime = currentTime; |
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#if defined(PLATFORM_OCULUS) |
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SetOculusBuffer(session, buffer); |
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#endif |
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rlClearScreenBuffers(); // Clear current framebuffers |
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rlLoadIdentity(); // Reset current matrix (MODELVIEW) |
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@ -654,49 +530,7 @@ void BeginDrawing(void) |
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// End canvas drawing and Swap Buffers (Double Buffering) |
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void EndDrawing(void) |
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{ |
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#if defined(PLATFORM_OCULUS) |
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for (int eye = 0; eye < 2; eye++) |
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{ |
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rlViewport(layer.eyeLayer.Viewport[eye].Pos.x, layer.eyeLayer.Viewport[eye].Pos.y, layer.eyeLayer.Viewport[eye].Size.w, layer.eyeLayer.Viewport[eye].Size.h); |
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Quaternion eyeRPose = (Quaternion){ layer.eyeLayer.RenderPose[eye].Orientation.x, |
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layer.eyeLayer.RenderPose[eye].Orientation.y, |
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layer.eyeLayer.RenderPose[eye].Orientation.z, |
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layer.eyeLayer.RenderPose[eye].Orientation.w }; |
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QuaternionInvert(&eyeRPose); |
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Matrix eyeOrientation = QuaternionToMatrix(eyeRPose); |
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Matrix eyeTranslation = MatrixTranslate(-layer.eyeLayer.RenderPose[eye].Position.x, |
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-layer.eyeLayer.RenderPose[eye].Position.y, |
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-layer.eyeLayer.RenderPose[eye].Position.z); |
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Matrix eyeView = MatrixMultiply(eyeTranslation, eyeOrientation); |
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Matrix modelEyeView = MatrixMultiply(cameraView, eyeView); // Using internal camera modelview matrix |
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SetMatrixModelview(modelEyeView); |
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SetMatrixProjection(layer.eyeProjections[eye]); |
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#endif |
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rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2) |
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#if defined(PLATFORM_OCULUS) |
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} |
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UnsetOculusBuffer(buffer); |
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ovr_CommitTextureSwapChain(session, buffer.textureChain); |
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ovrLayerHeader *layers = &layer.eyeLayer.Header; |
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ovr_SubmitFrame(session, frameIndex, &layer.viewScaleDesc, &layers, 1); |
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// Blit mirror texture to back buffer |
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BlitOculusMirror(session, mirror); |
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// Get session status information |
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ovrSessionStatus sessionStatus; |
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ovr_GetSessionStatus(session, &sessionStatus); |
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if (sessionStatus.ShouldQuit) TraceLog(WARNING, "OVR: Session should quit..."); |
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if (sessionStatus.ShouldRecenter) ovr_RecenterTrackingOrigin(session); |
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#endif |
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rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2) |
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SwapBuffers(); // Copy back buffer to front buffer |
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PollInputEvents(); // Poll user events |
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@ -768,7 +602,7 @@ void Begin3dMode(Camera camera) |
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rlLoadIdentity(); // Reset current matrix (MODELVIEW) |
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// Setup Camera view |
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cameraView = MatrixLookAt(camera.position, camera.target, camera.up); |
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Matrix cameraView = MatrixLookAt(camera.position, camera.target, camera.up); |
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rlMultMatrixf(MatrixToFloat(cameraView)); // Multiply MODELVIEW matrix by view matrix (camera) |
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rlEnableDepthTest(); // Enable DEPTH_TEST for 3D |
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@ -1738,9 +1572,7 @@ static void InitDisplay(int width, int height) |
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#endif |
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glfwMakeContextCurrent(window); |
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#if defined(PLATFORM_OCULUS) |
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glfwSwapInterval(0); |
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#endif |
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glfwSwapInterval(0); // Disable VSync by default |
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#if defined(PLATFORM_DESKTOP) |
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// Load OpenGL 3.3 extensions |
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@ -2940,214 +2772,6 @@ static void *GamepadThread(void *arg) |
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} |
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#endif |
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#if defined(PLATFORM_OCULUS) |
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// Convert from Oculus ovrMatrix4f struct to raymath Matrix struct |
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static Matrix FromOvrMatrix(ovrMatrix4f ovrmat) |
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{ |
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Matrix rmat; |
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rmat.m0 = ovrmat.M[0][0]; |
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rmat.m1 = ovrmat.M[1][0]; |
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rmat.m2 = ovrmat.M[2][0]; |
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rmat.m3 = ovrmat.M[3][0]; |
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rmat.m4 = ovrmat.M[0][1]; |
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rmat.m5 = ovrmat.M[1][1]; |
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rmat.m6 = ovrmat.M[2][1]; |
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rmat.m7 = ovrmat.M[3][1]; |
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rmat.m8 = ovrmat.M[0][2]; |
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rmat.m9 = ovrmat.M[1][2]; |
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rmat.m10 = ovrmat.M[2][2]; |
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rmat.m11 = ovrmat.M[3][2]; |
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rmat.m12 = ovrmat.M[0][3]; |
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rmat.m13 = ovrmat.M[1][3]; |
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rmat.m14 = ovrmat.M[2][3]; |
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rmat.m15 = ovrmat.M[3][3]; |
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MatrixTranspose(&rmat); |
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return rmat; |
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} |
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// Load Oculus required buffers: texture-swap-chain, fbo, texture-depth |
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static OculusBuffer LoadOculusBuffer(ovrSession session, int width, int height) |
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{ |
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OculusBuffer buffer; |
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buffer.width = width; |
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buffer.height = height; |
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// Create OVR texture chain |
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ovrTextureSwapChainDesc desc = {}; |
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desc.Type = ovrTexture_2D; |
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desc.ArraySize = 1; |
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desc.Width = width; |
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desc.Height = height; |
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desc.MipLevels = 1; |
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desc.Format = OVR_FORMAT_R8G8B8A8_UNORM_SRGB; // Requires glEnable(GL_FRAMEBUFFER_SRGB); |
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desc.SampleCount = 1; |
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desc.StaticImage = ovrFalse; |
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ovrResult result = ovr_CreateTextureSwapChainGL(session, &desc, &buffer.textureChain); |
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if (!OVR_SUCCESS(result)) TraceLog(WARNING, "OVR: Failed to create swap textures buffer"); |
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int textureCount = 0; |
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ovr_GetTextureSwapChainLength(session, buffer.textureChain, &textureCount); |
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if (!OVR_SUCCESS(result) || !textureCount) TraceLog(WARNING, "OVR: Unable to count swap chain textures"); |
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for (int i = 0; i < textureCount; ++i) |
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{ |
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GLuint chainTexId; |
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ovr_GetTextureSwapChainBufferGL(session, buffer.textureChain, i, &chainTexId); |
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glBindTexture(GL_TEXTURE_2D, chainTexId); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
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} |
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glBindTexture(GL_TEXTURE_2D, 0); |
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/* |
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// Setup framebuffer object (using depth texture) |
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glGenFramebuffers(1, &buffer.fboId); |
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glGenTextures(1, &buffer.depthId); |
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glBindTexture(GL_TEXTURE_2D, buffer.depthId); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, buffer.width, buffer.height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); |
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*/ |
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// Setup framebuffer object (using depth renderbuffer) |
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glGenFramebuffers(1, &buffer.fboId); |
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glGenRenderbuffers(1, &buffer.depthId); |
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, buffer.fboId); |
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glBindRenderbuffer(GL_RENDERBUFFER, buffer.depthId); |
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glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, buffer.width, buffer.height); |
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glBindRenderbuffer(GL_RENDERBUFFER, 0); |
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glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, buffer.depthId); |
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); |
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return buffer; |
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} |
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// Unload texture required buffers |
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static void UnloadOculusBuffer(ovrSession session, OculusBuffer buffer) |
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{ |
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if (buffer.textureChain) |
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{ |
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ovr_DestroyTextureSwapChain(session, buffer.textureChain); |
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buffer.textureChain = NULL; |
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} |
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if (buffer.depthId != 0) glDeleteTextures(1, &buffer.depthId); |
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if (buffer.fboId != 0) glDeleteFramebuffers(1, &buffer.fboId); |
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} |
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// Set current Oculus buffer |
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static void SetOculusBuffer(ovrSession session, OculusBuffer buffer) |
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{ |
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GLuint currentTexId; |
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int currentIndex; |
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ovr_GetTextureSwapChainCurrentIndex(session, buffer.textureChain, ¤tIndex); |
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ovr_GetTextureSwapChainBufferGL(session, buffer.textureChain, currentIndex, ¤tTexId); |
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, buffer.fboId); |
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glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, currentTexId, 0); |
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//glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, buffer.depthId, 0); // Already binded |
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//glViewport(0, 0, buffer.width, buffer.height); // Useful if rendering to separate framebuffers (every eye) |
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//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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// Required if OculusBuffer format is OVR_FORMAT_R8G8B8A8_UNORM_SRGB |
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glEnable(GL_FRAMEBUFFER_SRGB); |
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} |
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// Unset Oculus buffer |
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static void UnsetOculusBuffer(OculusBuffer buffer) |
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{ |
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glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); |
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); |
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} |
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// Load Oculus mirror buffers |
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static OculusMirror LoadOculusMirror(ovrSession session, int width, int height) |
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{ |
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OculusMirror mirror; |
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mirror.width = width; |
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mirror.height = height; |
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ovrMirrorTextureDesc mirrorDesc; |
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memset(&mirrorDesc, 0, sizeof(mirrorDesc)); |
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mirrorDesc.Format = OVR_FORMAT_R8G8B8A8_UNORM_SRGB; |
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mirrorDesc.Width = mirror.width; |
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mirrorDesc.Height = mirror.height; |
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if (!OVR_SUCCESS(ovr_CreateMirrorTextureGL(session, &mirrorDesc, &mirror.texture))) TraceLog(WARNING, "Could not create mirror texture"); |
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glGenFramebuffers(1, &mirror.fboId); |
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return mirror; |
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} |
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// Unload Oculus mirror buffers |
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|
|
static void UnloadOculusMirror(ovrSession session, OculusMirror mirror) |
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|
{ |
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if (mirror.fboId != 0) glDeleteFramebuffers(1, &mirror.fboId); |
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|
if (mirror.texture) ovr_DestroyMirrorTexture(session, mirror.texture); |
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} |
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static void BlitOculusMirror(ovrSession session, OculusMirror mirror) |
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|
{ |
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|
|
GLuint mirrorTextureId; |
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ovr_GetMirrorTextureBufferGL(session, mirror.texture, &mirrorTextureId); |
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glBindFramebuffer(GL_READ_FRAMEBUFFER, mirror.fboId); |
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glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mirrorTextureId, 0); |
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|
glBlitFramebuffer(0, 0, mirror.width, mirror.height, 0, mirror.height, mirror.width, 0, GL_COLOR_BUFFER_BIT, GL_NEAREST); |
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|
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0); |
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|
} |
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// Requires: session, hmdDesc |
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|
|
static OculusLayer InitOculusLayer(ovrSession session) |
|
|
|
{ |
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|
|
OculusLayer layer = { 0 }; |
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|
|
layer.viewScaleDesc.HmdSpaceToWorldScaleInMeters = 1.0f; |
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|
memset(&layer.eyeLayer, 0, sizeof(ovrLayerEyeFov)); |
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|
|
layer.eyeLayer.Header.Type = ovrLayerType_EyeFov; |
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|
|
layer.eyeLayer.Header.Flags = ovrLayerFlag_TextureOriginAtBottomLeft; |
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|
ovrEyeRenderDesc eyeRenderDescs[2]; |
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|
|
for (int eye = 0; eye < 2; eye++) |
|
|
|
{ |
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|
|
eyeRenderDescs[eye] = ovr_GetRenderDesc(session, eye, hmdDesc.DefaultEyeFov[eye]); |
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|
|
ovrMatrix4f ovrPerspectiveProjection = ovrMatrix4f_Projection(eyeRenderDescs[eye].Fov, 0.01f, 10000.0f, ovrProjection_None); //ovrProjection_ClipRangeOpenGL); |
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|
|
layer.eyeProjections[eye] = FromOvrMatrix(ovrPerspectiveProjection); // NOTE: struct ovrMatrix4f { float M[4][4] } --> struct Matrix |
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|
|
layer.viewScaleDesc.HmdToEyeOffset[eye] = eyeRenderDescs[eye].HmdToEyeOffset; |
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|
|
layer.eyeLayer.Fov[eye] = eyeRenderDescs[eye].Fov; |
|
|
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|
|
ovrSizei eyeSize = ovr_GetFovTextureSize(session, eye, layer.eyeLayer.Fov[eye], 1.0f); |
|
|
|
layer.eyeLayer.Viewport[eye].Size = eyeSize; |
|
|
|
layer.eyeLayer.Viewport[eye].Pos.x = layer.width; |
|
|
|
layer.eyeLayer.Viewport[eye].Pos.y = 0; |
|
|
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|
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|
|
layer.height = eyeSize.h; //std::max(renderTargetSize.y, (uint32_t)eyeSize.h); |
|
|
|
layer.width += eyeSize.w; |
|
|
|
} |
|
|
|
|
|
|
|
return layer; |
|
|
|
} |
|
|
|
#endif |
|
|
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|
|
// Plays raylib logo appearing animation |
|
|
|
static void LogoAnimation(void) |
|
|
|
{ |
|
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|
raysan5
9 年前