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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef DMABUFSERVERBUFFERINTEGRATION_H
#define DMABUFSERVERBUFFERINTEGRATION_H
#include <QtCore/QVariant>
#include <QtWaylandClient/private/qwayland-wayland.h>
#include "qwayland-qt-dmabuf-server-buffer.h"
#include <QtWaylandClient/private/qwaylandserverbufferintegration_p.h>
#include "dmabufserverbufferintegration.h"
#include <QtWaylandClient/private/qwaylanddisplay_p.h>
#include <QtCore/QTextStream>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#ifndef EGL_KHR_image
typedef void *EGLImageKHR;
typedef EGLImageKHR (EGLAPIENTRYP PFNEGLCREATEIMAGEKHRPROC) (EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYIMAGEKHRPROC) (EGLDisplay dpy, EGLImageKHR image);
#endif
#ifndef GL_OES_EGL_image
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image);
#endif
QT_BEGIN_NAMESPACE
namespace QtWaylandClient {
class DmaBufServerBufferIntegration;
class DmaBufServerBuffer : public QWaylandServerBuffer
{
public:
DmaBufServerBuffer(DmaBufServerBufferIntegration *integration, struct ::qt_server_buffer *id, int32_t fd,
int32_t width, int32_t height, int32_t stride, int32_t offset, int32_t fourcc_format);
~DmaBufServerBuffer() override;
QOpenGLTexture* toOpenGlTexture() override;
private:
DmaBufServerBufferIntegration *m_integration = nullptr;
EGLImageKHR m_image = EGL_NO_IMAGE_KHR;
QOpenGLTexture *m_texture = nullptr;
struct ::qt_server_buffer *m_server_buffer = nullptr;
};
class DmaBufServerBufferIntegration
: public QWaylandServerBufferIntegration
, public QtWayland::qt_dmabuf_server_buffer
{
public:
void initialize(QWaylandDisplay *display) override;
QWaylandServerBuffer *serverBuffer(struct qt_server_buffer *buffer) override;
inline EGLImageKHR eglCreateImageKHR(EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
inline EGLBoolean eglDestroyImageKHR(EGLImageKHR image);
inline void glEGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image);
protected:
void dmabuf_server_buffer_server_buffer_created(struct ::qt_server_buffer *id, int32_t fd,
int32_t width, int32_t height, int32_t stride,
int32_t offset, int32_t fourcc_format) override;
private:
static void wlDisplayHandleGlobal(void *data, struct ::wl_registry *registry, uint32_t id,
const QString &interface, uint32_t version);
void initializeEgl();
PFNEGLCREATEIMAGEKHRPROC m_egl_create_image = nullptr;
PFNEGLDESTROYIMAGEKHRPROC m_egl_destroy_image = nullptr;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC m_gl_egl_image_target_texture = nullptr;
QWaylandDisplay *m_display = nullptr;
EGLDisplay m_egl_display = EGL_NO_DISPLAY;
bool m_egl_initialized = false;
};
EGLImageKHR DmaBufServerBufferIntegration::eglCreateImageKHR(EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list)
{
if (!m_egl_initialized)
initializeEgl();
if (!m_egl_create_image) {
qCWarning(lcQpaWayland) << "DmaBufServerBufferIntegration: Trying to use unresolved function eglCreateImageKHR";
return EGL_NO_IMAGE_KHR;
}
return m_egl_create_image(m_egl_display, ctx, target, buffer, attrib_list);
}
EGLBoolean DmaBufServerBufferIntegration::eglDestroyImageKHR(EGLImageKHR image)
{
if (!m_egl_destroy_image) {
qCWarning(lcQpaWayland) << "DmaBufServerBufferIntegration: Trying to use unresolved function eglDestroyImageKHR";
return false;
}
return m_egl_destroy_image(m_egl_display, image);
}
void DmaBufServerBufferIntegration::glEGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image)
{
if (!m_gl_egl_image_target_texture) {
qCWarning(lcQpaWayland) << "DmaBufServerBufferIntegration: Trying to use unresolved function glEGLImageTargetTexture2DOES";
return;
}
m_gl_egl_image_target_texture(target, image);
}
}
QT_END_NAMESPACE
#endif
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