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85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
// Copyright 2018-2020, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Holds OpenGL-specific session functions.
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* @author Drew DeVault <sir@cmpwn.com>
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* @author Simon Ser <contact@emersion.fr>
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* @ingroup oxr_main
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* @ingroup comp_client
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*/
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#include <stdlib.h>
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#include "util/u_misc.h"
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#include "oxr_objects.h"
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#include "oxr_logger.h"
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#include "oxr_two_call.h"
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#include "oxr_handle.h"
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#include "xrt/xrt_instance.h"
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#ifdef XR_USE_PLATFORM_EGL
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#define EGL_NO_X11 // libglvnd
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#define MESA_EGL_NO_X11_HEADERS // mesa
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#include <EGL/egl.h>
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#include "xrt/xrt_gfx_egl.h"
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// Not forward declared by mesa
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typedef EGLBoolean(EGLAPIENTRYP PFNEGLQUERYCONTEXTPROC)(EGLDisplay dpy,
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EGLContext ctx,
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EGLint attribute,
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EGLint *value);
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#endif
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#ifdef XR_USE_PLATFORM_EGL
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XrResult
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oxr_session_populate_egl(struct oxr_logger *log,
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struct oxr_system *sys,
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XrGraphicsBindingEGLMNDX const *next,
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struct oxr_session *sess)
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{
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EGLint egl_client_type;
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PFNEGLQUERYCONTEXTPROC eglQueryContext =
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(PFNEGLQUERYCONTEXTPROC)next->getProcAddress("eglQueryContext");
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if (!eglQueryContext) {
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return oxr_error(
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log, XR_ERROR_INITIALIZATION_FAILED,
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"Call to getProcAddress(eglQueryContext) failed");
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}
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if (!eglQueryContext(next->display, next->context,
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EGL_CONTEXT_CLIENT_TYPE, &egl_client_type)) {
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return oxr_error(
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log, XR_ERROR_INITIALIZATION_FAILED,
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"Call to eglQueryContext(EGL_CONTEXT_CLIENT_TYPE) failed");
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}
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if (egl_client_type != EGL_OPENGL_API &&
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egl_client_type != EGL_OPENGL_ES_API) {
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return oxr_error(log, XR_ERROR_INITIALIZATION_FAILED,
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"Unsupported EGL client type");
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}
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struct xrt_compositor_native *xcn = sess->sys->xcn;
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struct xrt_compositor_gl *xcgl =
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xrt_gfx_provider_create_gl_egl(xcn, next->display, next->config,
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next->context, next->getProcAddress);
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if (xcgl == NULL) {
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return oxr_error(log, XR_ERROR_INITIALIZATION_FAILED,
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"Failed to create an egl client compositor");
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}
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sess->compositor = &xcgl->base;
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sess->create_swapchain = oxr_swapchain_gl_create;
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return XR_SUCCESS;
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}
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#endif
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