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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup GHOST
*/
#pragma once
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "GHOST_Xr_openxr_includes.h"
class GHOST_IXrGraphicsBinding {
public:
union {
#if defined(WITH_GHOST_X11)
XrGraphicsBindingEGLMNDX egl;
XrGraphicsBindingOpenGLXlibKHR glx;
#elif defined(WIN32)
XrGraphicsBindingOpenGLWin32KHR wgl;
XrGraphicsBindingD3D11KHR d3d11;
#endif
#if defined(WITH_GHOST_WAYLAND)
XrGraphicsBindingOpenGLWaylandKHR wl;
#endif
} oxr_binding;
virtual ~GHOST_IXrGraphicsBinding() = default;
/**
* Does __not__ require this object is initialized (can be called prior to
* #initFromGhostContext). It's actually meant to be called first.
*
* \param r_requirement_info: Return argument to retrieve an informal string on the requirements.
* to be met. Useful for error/debug messages.
*/
virtual bool checkVersionRequirements(class GHOST_Context &ghost_ctx,
XrInstance instance,
XrSystemId system_id,
std::string *r_requirement_info) const = 0;
virtual void initFromGhostContext(class GHOST_Context &ghost_ctx) = 0;
virtual std::optional<int64_t> chooseSwapchainFormat(const std::vector<int64_t> &runtime_formats,
GHOST_TXrSwapchainFormat &r_format,
bool &r_is_rgb_format) const = 0;
virtual std::vector<XrSwapchainImageBaseHeader *> createSwapchainImages(
uint32_t image_count) = 0;
virtual void submitToSwapchainImage(XrSwapchainImageBaseHeader &swapchain_image,
const GHOST_XrDrawViewInfo &draw_info) = 0;
virtual bool needsUpsideDownDrawing(GHOST_Context &ghost_ctx) const = 0;
protected:
/* Use GHOST_XrGraphicsBindingCreateFromType! */
GHOST_IXrGraphicsBinding() = default;
};
std::unique_ptr<GHOST_IXrGraphicsBinding> GHOST_XrGraphicsBindingCreateFromType(
GHOST_TXrGraphicsBinding type, GHOST_Context &ghost_ctx);
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