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| ** This file is part of the plugins of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #include "vulkanserverbufferintegration.h" |
| #include <QtWaylandClient/private/qwaylanddisplay_p.h> |
| #include <QDebug> |
| #include <QtGui/QOpenGLContext> |
| #include <QtGui/QOpenGLTexture> |
| #include <QtGui/qopengl.h> |
| #include <QtGui/QImage> |
| #include <QtCore/QCoreApplication> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QtWaylandClient { |
| |
| static constexpr bool extraDebug = |
| #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 (extraDebug) 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 (extraDebug) 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 (extraDebug) qDebug() << "glCreateMemoryObjectsEXT" << Qt::hex << glGetError(); |
| funcs->glImportMemoryFdEXT(m_memoryObject, m_memorySize, GL_HANDLE_TYPE_OPAQUE_FD_EXT, m_fd); |
| if (extraDebug) qDebug() << "glImportMemoryFdEXT" << Qt::hex << glGetError(); |
| |
| |
| m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D); |
| m_texture->create(); |
| |
| if (extraDebug) qDebug() << "created texture" << m_texture->textureId() << Qt::hex << glGetError(); |
| |
| m_texture->bind(); |
| if (extraDebug) qDebug() << "bound texture" << Qt::hex << glGetError(); |
| funcs->glTexStorageMem2DEXT(GL_TEXTURE_2D, 1, m_internalFormat, m_size.width(), m_size.height(), m_memoryObject, 0 ); |
| if (extraDebug) qDebug() << "glTexStorageMem2DEXT" << Qt::hex << glGetError(); |
| if (extraDebug) 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 (extraDebug) 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 |