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// Copyright (C) 2019 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
#include "vulkanserverbufferintegration.h"
#include <QtWaylandClient/private/qwaylanddisplay_p.h>
#include <QDebug>
#include <QtOpenGL/QOpenGLTexture>
#include <QtGui/QOpenGLContext>
#include <QtGui/qopengl.h>
#include <QtGui/QImage>
#include <QtCore/QCoreApplication>
QT_BEGIN_NAMESPACE
namespace QtWaylandClient {
static constexpr bool sbiExtraDebug =
#ifdef VULKAN_SERVER_BUFFER_EXTRA_DEBUG
true;
#else
false;
#endif
#define DECL_GL_FUNCTION(name, type) \
type name
#define FIND_GL_FUNCTION(name, type) \
do { \
name = reinterpret_cast<type>(glContext->getProcAddress(#name)); \
if (!name) { \
qWarning() << "ERROR in GL proc lookup. Could not find " #name; \
return false; \
} \
} while (0)
struct VulkanServerBufferGlFunctions
{
DECL_GL_FUNCTION(glCreateMemoryObjectsEXT, PFNGLCREATEMEMORYOBJECTSEXTPROC);
DECL_GL_FUNCTION(glImportMemoryFdEXT, PFNGLIMPORTMEMORYFDEXTPROC);
DECL_GL_FUNCTION(glTextureStorageMem2DEXT, PFNGLTEXTURESTORAGEMEM2DEXTPROC);
DECL_GL_FUNCTION(glTexStorageMem2DEXT, PFNGLTEXSTORAGEMEM2DEXTPROC);
DECL_GL_FUNCTION(glDeleteMemoryObjectsEXT, PFNGLDELETEMEMORYOBJECTSEXTPROC);
bool init(QOpenGLContext *glContext)
{
FIND_GL_FUNCTION(glCreateMemoryObjectsEXT, PFNGLCREATEMEMORYOBJECTSEXTPROC);
FIND_GL_FUNCTION(glImportMemoryFdEXT, PFNGLIMPORTMEMORYFDEXTPROC);
FIND_GL_FUNCTION(glTextureStorageMem2DEXT, PFNGLTEXTURESTORAGEMEM2DEXTPROC);
FIND_GL_FUNCTION(glTexStorageMem2DEXT, PFNGLTEXSTORAGEMEM2DEXTPROC);
FIND_GL_FUNCTION(glDeleteMemoryObjectsEXT, PFNGLDELETEMEMORYOBJECTSEXTPROC);
return true;
}
static bool create(QOpenGLContext *glContext);
};
static VulkanServerBufferGlFunctions *funcs = nullptr;
bool VulkanServerBufferGlFunctions::create(QOpenGLContext *glContext)
{
if (funcs)
return true;
funcs = new VulkanServerBufferGlFunctions;
if (!funcs->init(glContext)) {
delete funcs;
funcs = nullptr;
return false;
}
return true;
}
VulkanServerBuffer::VulkanServerBuffer(VulkanServerBufferIntegration *integration, struct ::qt_server_buffer *id,
int32_t fd, uint32_t width, uint32_t height, uint32_t memory_size, uint32_t format)
: m_integration(integration)
, m_server_buffer(id)
, m_fd(fd)
, m_memorySize(memory_size)
, m_internalFormat(format)
{
m_size = QSize(width, height);
}
VulkanServerBuffer::~VulkanServerBuffer()
{
if (QCoreApplication::closingDown())
return; // can't trust anything at this point
if (m_texture) { //only do gl cleanup if import has been called
m_integration->deleteGLTextureWhenPossible(m_texture);
if (sbiExtraDebug) qDebug() << "glDeleteMemoryObjectsEXT" << m_memoryObject;
funcs->glDeleteMemoryObjectsEXT(1, &m_memoryObject);
}
qt_server_buffer_release(m_server_buffer);
qt_server_buffer_destroy(m_server_buffer);
}
void VulkanServerBuffer::import()
{
if (m_texture)
return;
if (sbiExtraDebug) qDebug() << "importing" << m_fd << Qt::hex << glGetError();
auto *glContext = QOpenGLContext::currentContext();
if (!glContext)
return;
if (!funcs && !VulkanServerBufferGlFunctions::create(glContext))
return;
funcs->glCreateMemoryObjectsEXT(1, &m_memoryObject);
if (sbiExtraDebug) qDebug() << "glCreateMemoryObjectsEXT" << Qt::hex << glGetError();
funcs->glImportMemoryFdEXT(m_memoryObject, m_memorySize, GL_HANDLE_TYPE_OPAQUE_FD_EXT, m_fd);
if (sbiExtraDebug) qDebug() << "glImportMemoryFdEXT" << Qt::hex << glGetError();
m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
m_texture->create();
if (sbiExtraDebug) qDebug() << "created texture" << m_texture->textureId() << Qt::hex << glGetError();
m_texture->bind();
if (sbiExtraDebug) qDebug() << "bound texture" << Qt::hex << glGetError();
funcs->glTexStorageMem2DEXT(GL_TEXTURE_2D, 1, m_internalFormat, m_size.width(), m_size.height(), m_memoryObject, 0 );
if (sbiExtraDebug) qDebug() << "glTexStorageMem2DEXT" << Qt::hex << glGetError();
if (sbiExtraDebug) qDebug() << "format" << Qt::hex << m_internalFormat << GL_RGBA8;
}
QOpenGLTexture *VulkanServerBuffer::toOpenGlTexture()
{
m_integration->deleteOrphanedTextures();
if (!m_texture)
import();
return m_texture;
}
void VulkanServerBufferIntegration::initialize(QWaylandDisplay *display)
{
m_display = display;
display->addRegistryListener(&wlDisplayHandleGlobal, this);
}
QWaylandServerBuffer *VulkanServerBufferIntegration::serverBuffer(struct qt_server_buffer *buffer)
{
return static_cast<QWaylandServerBuffer *>(qt_server_buffer_get_user_data(buffer));
}
void VulkanServerBufferIntegration::wlDisplayHandleGlobal(void *data, ::wl_registry *registry, uint32_t id, const QString &interface, uint32_t version)
{
Q_UNUSED(version);
if (interface == "zqt_vulkan_server_buffer_v1") {
auto *integration = static_cast<VulkanServerBufferIntegration *>(data);
integration->QtWayland::zqt_vulkan_server_buffer_v1::init(registry, id, 1);
}
}
void VulkanServerBufferIntegration::zqt_vulkan_server_buffer_v1_server_buffer_created(qt_server_buffer *id, int32_t fd, uint32_t width, uint32_t height, uint32_t memory_size, uint32_t format)
{
if (sbiExtraDebug) qDebug() << "vulkan_server_buffer_server_buffer_created" << fd;
auto *server_buffer = new VulkanServerBuffer(this, id, fd, width, height, memory_size, format);
qt_server_buffer_set_user_data(id, server_buffer);
}
void VulkanServerBufferIntegration::deleteOrphanedTextures()
{
if (!QOpenGLContext::currentContext()) {
qWarning("VulkanServerBufferIntegration::deleteOrphanedTextures with no current context!");
return;
}
qDeleteAll(orphanedTextures);
orphanedTextures.clear();
}
}
QT_END_NAMESPACE
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