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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "drmeglserverbufferintegration.h"
#include <QtOpenGL/QOpenGLTexture>
#include <QtGui/QOpenGLContext>
QT_BEGIN_NAMESPACE
DrmEglServerBuffer::DrmEglServerBuffer(DrmEglServerBufferIntegration *integration, const QImage &qimage, QtWayland::ServerBuffer::Format format)
: QtWayland::ServerBuffer(qimage.size(),format)
, m_integration(integration)
{
m_format = format;
EGLint egl_format;
switch (m_format) {
case RGBA32:
m_drm_format = QtWaylandServer::qt_drm_egl_server_buffer::format_RGBA32;
egl_format = EGL_DRM_BUFFER_FORMAT_ARGB32_MESA;
break;
#ifdef EGL_DRM_BUFFER_FORMAT_A8_MESA
case A8:
m_drm_format = QtWaylandServer::qt_drm_egl_server_buffer::format_A8;
egl_format = EGL_DRM_BUFFER_FORMAT_A8_MESA;
break;
#endif
default:
qWarning("DrmEglServerBuffer: unsupported format");
m_drm_format = QtWaylandServer::qt_drm_egl_server_buffer::format_RGBA32;
egl_format = EGL_DRM_BUFFER_FORMAT_ARGB32_MESA;
break;
}
EGLint imageAttribs[] = {
EGL_WIDTH, m_size.width(),
EGL_HEIGHT, m_size.height(),
EGL_DRM_BUFFER_FORMAT_MESA, egl_format,
EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SHARE_MESA,
EGL_NONE
};
m_image = m_integration->eglCreateDRMImageMESA(imageAttribs);
EGLint handle;
if (!m_integration->eglExportDRMImageMESA(m_image, &m_name, &handle, &m_stride)) {
qWarning("DrmEglServerBuffer: Failed to export egl image");
}
m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
m_texture->create();
m_texture->bind();
m_integration->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, m_image);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, qimage.width(), qimage.height(), GL_RGBA, GL_UNSIGNED_BYTE, qimage.constBits());
m_texture->release();
m_texture->setSize(m_size.width(), m_size.height());
}
struct ::wl_resource *DrmEglServerBuffer::resourceForClient(struct ::wl_client *client)
{
auto *bufferResource = resourceMap().value(client);
if (!bufferResource) {
auto integrationResource = m_integration->resourceMap().value(client);
if (!integrationResource) {
qWarning("DrmEglServerBuffer::resourceForClient: Trying to get resource for ServerBuffer. But client is not bound to the drm_egl interface");
return nullptr;
}
struct ::wl_resource *drm_egl_integration_resource = integrationResource->handle;
Resource *resource = add(client, 1);
m_integration->send_server_buffer_created(drm_egl_integration_resource, resource->handle, m_name, m_size.width(), m_size.height(), m_stride, m_drm_format);
return resource->handle;
}
return bufferResource->handle;
}
QOpenGLTexture *DrmEglServerBuffer::toOpenGlTexture()
{
if (!m_texture) {
qWarning("DrmEglServerBuffer::toOpenGlTexture: no texture defined");
}
return m_texture;
}
bool DrmEglServerBuffer::bufferInUse()
{
return resourceMap().size() > 0;
}
DrmEglServerBufferIntegration::DrmEglServerBufferIntegration()
{
}
DrmEglServerBufferIntegration::~DrmEglServerBufferIntegration()
{
}
bool DrmEglServerBufferIntegration::initializeHardware(QWaylandCompositor *compositor)
{
Q_ASSERT(QGuiApplication::platformNativeInterface());
m_egl_display = static_cast<EGLDisplay>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("egldisplay"));
if (!m_egl_display) {
qWarning("Can't initialize drm egl server buffer integration. Missing egl display from platform plugin");
return false;
}
const char *extensionString = eglQueryString(m_egl_display, EGL_EXTENSIONS);
if (!extensionString || !strstr(extensionString, "EGL_KHR_image")) {
qWarning("Failed to initialize drm egl server buffer integration. There is no EGL_KHR_image extension.\n");
return false;
}
m_egl_create_image = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR"));
m_egl_destroy_image = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR"));
if (!m_egl_create_image || !m_egl_destroy_image) {
qWarning("Failed to initialize drm egl server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR");
return false;
}
if (!extensionString || !strstr(extensionString, "EGL_MESA_drm_image")) {
qWarning("Failed to initialize drm egl server buffer integration. There is no EGL_MESA_drm_image extension.\n");
return false;
}
m_egl_create_drm_image = reinterpret_cast<PFNEGLCREATEDRMIMAGEMESAPROC>(eglGetProcAddress("eglCreateDRMImageMESA"));
m_egl_export_drm_image = reinterpret_cast<PFNEGLEXPORTDRMIMAGEMESAPROC>(eglGetProcAddress("eglExportDRMImageMESA"));
if (!m_egl_create_drm_image || !m_egl_export_drm_image) {
qWarning("Failed to initialize drm egl server buffer integration. Could not find eglCreateDRMImageMESA or eglExportDRMImageMESA.\n");
return false;
}
m_gl_egl_image_target_texture_2d = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
if (!m_gl_egl_image_target_texture_2d) {
qWarning("Failed to initialize drm egl server buffer integration. Could not find glEGLImageTargetTexture2DOES.\n");
return false;
}
QtWaylandServer::qt_drm_egl_server_buffer::init(compositor->display(), 1);
return true;
}
bool DrmEglServerBufferIntegration::supportsFormat(QtWayland::ServerBuffer::Format format) const
{
switch (format) {
case QtWayland::ServerBuffer::RGBA32:
return true;
case QtWayland::ServerBuffer::A8:
#ifdef EGL_DRM_BUFFER_FORMAT_A8_MESA
return true;
#else
return false;
#endif
default:
return false;
}
}
QtWayland::ServerBuffer *DrmEglServerBufferIntegration::createServerBufferFromImage(const QImage &qimage, QtWayland::ServerBuffer::Format format)
{
return new DrmEglServerBuffer(this, qimage, format);
}
QT_END_NAMESPACE
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