Added support for Oculus Rift CV1
This commit is contained in:
Ray
parent
e2173922f0
commit
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430
src/core.c
430
src/core.c
@ -9,6 +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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*
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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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@ -53,10 +54,18 @@
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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_DESKTOP)
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#include "glad.h" // GLAD library: Manage OpenGL headers and extensions
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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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@ -129,7 +138,31 @@
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//----------------------------------------------------------------------------------
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// Types and Structures Definition
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//----------------------------------------------------------------------------------
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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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// Global Variables Definition
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@ -137,7 +170,9 @@
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
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static GLFWwindow *window; // Native window (graphic device)
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static bool windowMinimized = false;
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#elif defined(PLATFORM_ANDROID)
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#endif
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#if defined(PLATFORM_ANDROID)
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static struct android_app *app; // Android activity
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static struct android_poll_source *source; // Android events polling source
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static int ident, events; // Android ALooper_pollAll() variables
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@ -149,7 +184,9 @@ static bool contextRebindRequired = false; // Used to know context rebind r
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static int previousButtonState[128] = { 1 }; // Required to check if button pressed/released once
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static int currentButtonState[128] = { 1 }; // Required to check if button pressed/released once
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#elif defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_RPI)
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static EGL_DISPMANX_WINDOW_T nativeWindow; // Native window (graphic device)
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// Keyboard input variables
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@ -180,6 +217,17 @@ static uint64_t baseTime; // Base time measure for hi-res time
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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;
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static ovrHmdDesc hmdDesc;
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static ovrGraphicsLuid luid;
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static OculusLayer layer;
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static OculusBuffer buffer;
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static OculusMirror mirror;
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static unsigned int frameIndex = 0;
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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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@ -189,6 +237,7 @@ 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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@ -287,6 +336,19 @@ 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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@ -335,6 +397,11 @@ 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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@ -345,8 +412,9 @@ void InitWindow(int width, int height, const char *title)
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LogoAnimation();
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}
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}
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#endif
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#elif defined(PLATFORM_ANDROID)
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#if defined(PLATFORM_ANDROID)
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// Android activity initialization
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void InitWindow(int width, int height, struct android_app *state)
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{
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@ -415,12 +483,19 @@ void CloseWindow(void)
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{
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UnloadDefaultFont();
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#if defined(PLATFORM_OCULUS)
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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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#endif
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rlglClose(); // De-init rlgl
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
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glfwDestroyWindow(window);
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glfwTerminate();
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#elif defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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// Close surface, context and display
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if (display != EGL_NO_DISPLAY)
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{
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@ -443,6 +518,11 @@ void CloseWindow(void)
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}
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#endif
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#if defined(PLATFORM_OCULUS)
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ovr_Destroy(session); // Must be called after glfwTerminate()
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ovr_Shutdown();
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#endif
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TraceLog(INFO, "Window closed successfully");
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}
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@ -454,7 +534,9 @@ bool WindowShouldClose(void)
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while (windowMinimized) glfwPollEvents();
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return (glfwWindowShouldClose(window));
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#elif defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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return windowShouldClose;
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#endif
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}
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@ -480,7 +562,9 @@ void ToggleFullscreen(void)
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glfwDestroyWindow(window); // Destroy the current window (we will recreate it!)
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InitWindow(screenWidth, screenHeight, windowTitle);
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#elif defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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TraceLog(WARNING, "Could not toggle to windowed mode");
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#endif
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}
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@ -510,6 +594,18 @@ 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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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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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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@ -522,10 +618,51 @@ 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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rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
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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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SwapBuffers(); // Copy back buffer to front buffer
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PollInputEvents(); // Poll user events
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// Frame time control system
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@ -595,8 +732,8 @@ void Begin3dMode(Camera camera)
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rlLoadIdentity(); // Reset current matrix (MODELVIEW)
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// Setup Camera view
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Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up);
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rlMultMatrixf(MatrixToFloat(matView)); // Multiply MODELVIEW matrix by view matrix (camera)
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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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}
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@ -1437,6 +1574,30 @@ static void InitDisplay(int width, int height)
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// Downscale matrix is required in case desired screen area is bigger than display area
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downscaleView = MatrixIdentity();
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#if defined(PLATFORM_OCULUS)
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ovrResult result = ovr_Initialize(NULL);
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if (OVR_FAILURE(result)) TraceLog(ERROR, "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: Serian Number: %s", hmdDesc.SerialNumber);
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TraceLog(INFO, "OVR: Resolution: %ix%i", hmdDesc.Resolution.w, hmdDesc.Resolution.h);
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screenWidth = hmdDesc.Resolution.w/2;
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screenHeight = hmdDesc.Resolution.h/2;
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#endif
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
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glfwSetErrorCallback(ErrorCallback);
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@ -1565,14 +1726,17 @@ 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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#if defined(PLATFORM_DESKTOP)
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// Extensions initialization for OpenGL 3.3
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// Load OpenGL 3.3 extensions using GLAD
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if (rlGetVersion() == OPENGL_33)
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{
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// NOTE: glad is generated and contains only required OpenGL version and Core extensions
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//if (!gladLoadGL()) TraceLog(ERROR, "Failed to initialize glad\n");
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if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) TraceLog(ERROR, "Failed to initialize glad\n"); // No GLFW3 in this module...
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// NOTE: glad is generated and contains only required OpenGL 3.3 Core extensions
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if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) TraceLog(WARNING, "GLAD: Cannot load OpenGL extensions");
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else TraceLog(INFO, "GLAD: OpenGL extensions loaded successfully");
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if (GLAD_GL_VERSION_3_3) TraceLog(INFO, "OpenGL 3.3 Core profile supported");
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else TraceLog(ERROR, "OpenGL 3.3 Core profile not supported");
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@ -1746,13 +1910,16 @@ static void InitDisplay(int width, int height)
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static void InitGraphics(void)
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{
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rlglInit(); // Init rlgl
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#if defined(PLATFORM_OCULUS)
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//rlglInitOculus(); // Init rlgl for Oculus Rift (required textures)
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#endif
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rlglInitGraphics(renderOffsetX, renderOffsetY, renderWidth, renderHeight); // Init graphics (OpenGL stuff)
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#if defined(PLATFORM_OCULUS)
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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, hmdDesc.Resolution.w/2, hmdDesc.Resolution.h/2);
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layer.eyeLayer.ColorTexture[0] = buffer.textureChain; //SetOculusLayerTexture(eyeLayer, buffer.textureChain);
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#endif
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ClearBackground(RAYWHITE); // Default background color for raylib games :P
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#if defined(PLATFORM_ANDROID)
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@ -1860,7 +2027,9 @@ static double GetTime(void)
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{
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
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return glfwGetTime();
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#elif defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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uint64_t time = (uint64_t)ts.tv_sec*1000000000LLU + (uint64_t)ts.tv_nsec;
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@ -1928,8 +2097,9 @@ static void PollInputEvents(void)
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currentMouseWheelY = 0;
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glfwPollEvents(); // Register keyboard/mouse events... and window events!
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#elif defined(PLATFORM_ANDROID)
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#endif
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#if defined(PLATFORM_ANDROID)
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// Register previous keys states
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for (int i = 0; i < 128; i++) previousButtonState[i] = currentButtonState[i];
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@ -1948,8 +2118,9 @@ static void PollInputEvents(void)
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//ANativeActivity_finish(app->activity);
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}
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}
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#elif defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_RPI)
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// NOTE: Mouse input events polling is done asynchonously in another pthread - MouseThread()
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// NOTE: Keyboard reading could be done using input_event(s) reading or just read from stdin,
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@ -1957,7 +2128,6 @@ static void PollInputEvents(void)
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ProcessKeyboard();
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// NOTE: Gamepad (Joystick) input events polling is done asynchonously in another pthread - GamepadThread()
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#endif
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}
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@ -1966,7 +2136,9 @@ static void SwapBuffers(void)
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{
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
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glfwSwapBuffers(window);
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#elif defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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#endif
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#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
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eglSwapBuffers(display, surface);
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#endif
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}
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@ -2774,6 +2946,214 @@ 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];
|
||||
rmat.m1 = ovrmat.M[1][0];
|
||||
rmat.m2 = ovrmat.M[2][0];
|
||||
rmat.m3 = ovrmat.M[3][0];
|
||||
rmat.m4 = ovrmat.M[0][1];
|
||||
rmat.m5 = ovrmat.M[1][1];
|
||||
rmat.m6 = ovrmat.M[2][1];
|
||||
rmat.m7 = ovrmat.M[3][1];
|
||||
rmat.m8 = ovrmat.M[0][2];
|
||||
rmat.m9 = ovrmat.M[1][2];
|
||||
rmat.m10 = ovrmat.M[2][2];
|
||||
rmat.m11 = ovrmat.M[3][2];
|
||||
rmat.m12 = ovrmat.M[0][3];
|
||||
rmat.m13 = ovrmat.M[1][3];
|
||||
rmat.m14 = ovrmat.M[2][3];
|
||||
rmat.m15 = ovrmat.M[3][3];
|
||||
|
||||
MatrixTranspose(&rmat);
|
||||
|
||||
return rmat;
|
||||
}
|
||||
|
||||
// Load Oculus required buffers: texture-swap-chain, fbo, texture-depth
|
||||
static OculusBuffer LoadOculusBuffer(ovrSession session, int width, int height)
|
||||
{
|
||||
OculusBuffer buffer;
|
||||
buffer.width = width;
|
||||
buffer.height = height;
|
||||
|
||||
// Create OVR texture chain
|
||||
ovrTextureSwapChainDesc desc = {};
|
||||
desc.Type = ovrTexture_2D;
|
||||
desc.ArraySize = 1;
|
||||
desc.Width = width;
|
||||
desc.Height = height;
|
||||
desc.MipLevels = 1;
|
||||
desc.Format = OVR_FORMAT_R8G8B8A8_UNORM_SRGB; // Requires glEnable(GL_FRAMEBUFFER_SRGB);
|
||||
desc.SampleCount = 1;
|
||||
desc.StaticImage = ovrFalse;
|
||||
|
||||
ovrResult result = ovr_CreateTextureSwapChainGL(session, &desc, &buffer.textureChain);
|
||||
|
||||
if (!OVR_SUCCESS(result)) TraceLog(WARNING, "OVR: Failed to create swap textures buffer");
|
||||
|
||||
int textureCount = 0;
|
||||
ovr_GetTextureSwapChainLength(session, buffer.textureChain, &textureCount);
|
||||
|
||||
if (!OVR_SUCCESS(result) || !textureCount) TraceLog(WARNING, "OVR: Unable to count swap chain textures");
|
||||
|
||||
for (int i = 0; i < textureCount; ++i)
|
||||
{
|
||||
GLuint chainTexId;
|
||||
ovr_GetTextureSwapChainBufferGL(session, buffer.textureChain, i, &chainTexId);
|
||||
glBindTexture(GL_TEXTURE_2D, chainTexId);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||
}
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
/*
|
||||
// Setup framebuffer object (using depth texture)
|
||||
glGenFramebuffers(1, &buffer.fboId);
|
||||
glGenTextures(1, &buffer.depthId);
|
||||
glBindTexture(GL_TEXTURE_2D, buffer.depthId);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, buffer.width, buffer.height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
|
||||
*/
|
||||
|
||||
// Setup framebuffer object (using depth renderbuffer)
|
||||
glGenFramebuffers(1, &buffer.fboId);
|
||||
glGenRenderbuffers(1, &buffer.depthId);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, buffer.fboId);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, buffer.depthId);
|
||||
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, buffer.width, buffer.height);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
||||
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, buffer.depthId);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
|
||||
|
||||
return buffer;
|
||||
}
|
||||
|
||||
// Unload texture required buffers
|
||||
static void UnloadOculusBuffer(ovrSession session, OculusBuffer buffer)
|
||||
{
|
||||
if (buffer.textureChain)
|
||||
{
|
||||
ovr_DestroyTextureSwapChain(session, buffer.textureChain);
|
||||
buffer.textureChain = NULL;
|
||||
}
|
||||
|
||||
if (buffer.depthId != 0) glDeleteTextures(1, &buffer.depthId);
|
||||
if (buffer.fboId != 0) glDeleteFramebuffers(1, &buffer.fboId);
|
||||
}
|
||||
|
||||
// Set current Oculus buffer
|
||||
static void SetOculusBuffer(ovrSession session, OculusBuffer buffer)
|
||||
{
|
||||
GLuint currentTexId;
|
||||
int currentIndex;
|
||||
|
||||
ovr_GetTextureSwapChainCurrentIndex(session, buffer.textureChain, ¤tIndex);
|
||||
ovr_GetTextureSwapChainBufferGL(session, buffer.textureChain, currentIndex, ¤tTexId);
|
||||
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, buffer.fboId);
|
||||
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, currentTexId, 0);
|
||||
//glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, buffer.depthId, 0); // Already binded
|
||||
|
||||
//glViewport(0, 0, buffer.width, buffer.height); // Useful if rendering to separate framebuffers (every eye)
|
||||
//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// Required if OculusBuffer format is OVR_FORMAT_R8G8B8A8_UNORM_SRGB
|
||||
glEnable(GL_FRAMEBUFFER_SRGB);
|
||||
}
|
||||
|
||||
// Unset Oculus buffer
|
||||
static void UnsetOculusBuffer(OculusBuffer buffer)
|
||||
{
|
||||
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
|
||||
}
|
||||
|
||||
// Load Oculus mirror buffers
|
||||
static OculusMirror LoadOculusMirror(ovrSession session, int width, int height)
|
||||
{
|
||||
OculusMirror mirror;
|
||||
mirror.width = width;
|
||||
mirror.height = height;
|
||||
|
||||
ovrMirrorTextureDesc mirrorDesc;
|
||||
memset(&mirrorDesc, 0, sizeof(mirrorDesc));
|
||||
mirrorDesc.Format = OVR_FORMAT_R8G8B8A8_UNORM_SRGB;
|
||||
mirrorDesc.Width = mirror.width;
|
||||
mirrorDesc.Height = mirror.height;
|
||||
|
||||
if (!OVR_SUCCESS(ovr_CreateMirrorTextureGL(session, &mirrorDesc, &mirror.texture))) TraceLog(WARNING, "Could not create mirror texture");
|
||||
|
||||
glGenFramebuffers(1, &mirror.fboId);
|
||||
|
||||
return mirror;
|
||||
}
|
||||
|
||||
// Unload Oculus mirror buffers
|
||||
static void UnloadOculusMirror(ovrSession session, OculusMirror mirror)
|
||||
{
|
||||
if (mirror.fboId != 0) glDeleteFramebuffers(1, &mirror.fboId);
|
||||
if (mirror.texture) ovr_DestroyMirrorTexture(session, mirror.texture);
|
||||
}
|
||||
|
||||
static void BlitOculusMirror(ovrSession session, OculusMirror mirror)
|
||||
{
|
||||
GLuint mirrorTextureId;
|
||||
|
||||
ovr_GetMirrorTextureBufferGL(session, mirror.texture, &mirrorTextureId);
|
||||
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, mirror.fboId);
|
||||
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mirrorTextureId, 0);
|
||||
glBlitFramebuffer(0, 0, mirror.width, mirror.height, 0, mirror.height, mirror.width, 0, GL_COLOR_BUFFER_BIT, GL_NEAREST);
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
|
||||
}
|
||||
|
||||
// Requires: session, hmdDesc
|
||||
static OculusLayer InitOculusLayer(ovrSession session)
|
||||
{
|
||||
OculusLayer layer = { 0 };
|
||||
|
||||
layer.viewScaleDesc.HmdSpaceToWorldScaleInMeters = 1.0f;
|
||||
|
||||
memset(&layer.eyeLayer, 0, sizeof(ovrLayerEyeFov));
|
||||
layer.eyeLayer.Header.Type = ovrLayerType_EyeFov;
|
||||
layer.eyeLayer.Header.Flags = ovrLayerFlag_TextureOriginAtBottomLeft;
|
||||
|
||||
ovrEyeRenderDesc eyeRenderDescs[2];
|
||||
|
||||
for (int eye = 0; eye < 2; eye++)
|
||||
{
|
||||
eyeRenderDescs[eye] = ovr_GetRenderDesc(session, eye, hmdDesc.DefaultEyeFov[eye]);
|
||||
ovrMatrix4f ovrPerspectiveProjection = ovrMatrix4f_Projection(eyeRenderDescs[eye].Fov, 0.01f, 10000.0f, ovrProjection_None); //ovrProjection_ClipRangeOpenGL);
|
||||
layer.eyeProjections[eye] = FromOvrMatrix(ovrPerspectiveProjection); // NOTE: struct ovrMatrix4f { float M[4][4] } --> struct Matrix
|
||||
|
||||
layer.viewScaleDesc.HmdToEyeOffset[eye] = eyeRenderDescs[eye].HmdToEyeOffset;
|
||||
layer.eyeLayer.Fov[eye] = eyeRenderDescs[eye].Fov;
|
||||
|
||||
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;
|
||||
|
||||
layer.height = eyeSize.h; //std::max(renderTargetSize.y, (uint32_t)eyeSize.h);
|
||||
layer.width += eyeSize.w;
|
||||
}
|
||||
|
||||
return layer;
|
||||
}
|
||||
#endif
|
||||
|
||||
// Plays raylib logo appearing animation
|
||||
static void LogoAnimation(void)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user