OpenXRSwapChain.h - mozsearch

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#pragma once

#include "vrb/Forward.h"

#include "Device.h"

#include <memory>

#include <vector>

#include <EGL/egl.h>

#include "jni.h"

#include <openxr/openxr.h>

#include <openxr/openxr_platform.h>

#include <vrb/include/vrb/FBO.h>

#include "vrb/gl.h"

namespace crow {

class OpenXRSwapChain;

typedef std::shared_ptr<OpenXRSwapChain> OpenXRSwapChainPtr;

class OpenXRSwapChain {

private:

  vrb::RenderContextPtr context;

  XrSwapchainCreateInfo info;

  vrb::FBO::Attributes attributes;

  XrSwapchain swapchain = XR_NULL_HANDLE;

  std::vector<XrSwapchainImageOpenGLESKHR> imageBuffer;

  std::vector<XrSwapchainImageBaseHeader*> images;

  std::vector<vrb::FBOPtr> fbos;

  vrb::FBOPtr acquiredFBO;

  JNIEnv* env = nullptr;

  jobject surface = nullptr;

  XrSession session = XR_NULL_HANDLE;

  uint32_t cubeTexture = 0;

public:

  ~OpenXRSwapChain();

  static OpenXRSwapChainPtr create();

  void InitFBO(vrb::RenderContextPtr &aContext, XrSession aSession, const XrSwapchainCreateInfo& aInfo, vrb::FBO::Attributes aAttributes);

  void InitAndroidSurface(JNIEnv* aEnv, XrSession aSession, const XrSwapchainCreateInfo& aInfo);

  void InitCubemap(vrb::RenderContextPtr &aContext, XrSession aSession, const XrSwapchainCreateInfo& aInfo);

  void AcquireImage();

  void ReleaseImage();

  void BindFBO(GLenum target = GL_FRAMEBUFFER);

  void Destroy();

  inline XrSwapchain SwapChain() const { return swapchain;}

  inline int32_t Width() const { return info.width; }

  inline int32_t Height() const { return info.height; }

  inline jobject AndroidSurface() const { return surface; }

  inline JNIEnv* Env() const { return  env; };

  inline XrSession Session() const { return session; }

  inline uint32_t CubemapTexture() const { return cubeTexture; }

};