diff options
Diffstat (limited to 'src/compositor/wayland_wrapper/qwlsurfacebuffer.cpp')
| -rw-r--r-- | src/compositor/wayland_wrapper/qwlsurfacebuffer.cpp | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/src/compositor/wayland_wrapper/qwlsurfacebuffer.cpp b/src/compositor/wayland_wrapper/qwlsurfacebuffer.cpp new file mode 100644 index 000000000..cebe105b8 --- /dev/null +++ b/src/compositor/wayland_wrapper/qwlsurfacebuffer.cpp @@ -0,0 +1,259 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Compositor. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwlsurfacebuffer_p.h" + +#include "qwlsurface_p.h" +#include "qwlcompositor_p.h" + +#ifdef QT_COMPOSITOR_WAYLAND_GL +#include "hardware_integration/qwaylandgraphicshardwareintegration.h" +#include <qpa/qplatformopenglcontext.h> +#endif + +#include <QtCore/QDebug> + +QT_BEGIN_NAMESPACE + +namespace QtWayland { + +SurfaceBuffer::SurfaceBuffer(Surface *surface) + : QPlatformScreenBuffer() + , m_surface(surface) + , m_compositor(surface->compositor()) + , m_buffer(0) + , m_is_registered_for_buffer(false) + , m_surface_has_buffer(false) + , m_page_flipper_has_buffer(false) + , m_is_displayed(false) + , m_texture(0) + , m_guard(0) + , m_is_shm_resolved(false) + , m_is_shm(false) +{ +} + +SurfaceBuffer::~SurfaceBuffer() +{ + if (m_is_registered_for_buffer) + destructBufferState(); +} + +void SurfaceBuffer::initialize(wl_buffer *buffer) +{ + m_buffer = buffer; + m_texture = 0; + m_guard = 0; + m_is_registered_for_buffer = true; + m_surface_has_buffer = true; + m_page_flipper_has_buffer = false; + m_is_displayed = false; + m_destroyed = false; + m_handle = 0; + m_is_shm_resolved = false; + m_is_shm = false; + m_destroy_listener.surfaceBuffer = this; + m_destroy_listener.listener.notify = destroy_listener_callback; + if (buffer) + wl_signal_add(&buffer->resource.destroy_signal, &m_destroy_listener.listener); + m_damageRect = QRect(); +} + +void SurfaceBuffer::destructBufferState() +{ + Q_ASSERT(!m_page_flipper_has_buffer); + + destroyTexture(); + + if (m_buffer) { + if (m_handle) { + if (m_is_shm) { + delete static_cast<QImage *>(m_handle); +#ifdef QT_COMPOSITOR_WAYLAND_GL + } else { + QWaylandGraphicsHardwareIntegration *hwIntegration = m_compositor->graphicsHWIntegration(); + hwIntegration->unlockNativeBuffer(m_handle, m_compositor->directRenderContext()); +#endif + } + } + wl_list_remove(&m_destroy_listener.listener.link); + sendRelease(); + } + m_buffer = 0; + m_handle = 0; + m_is_registered_for_buffer = false; + m_is_displayed = false; +} + +bool SurfaceBuffer::isShmBuffer() const +{ + if (!m_is_shm_resolved) { + SurfaceBuffer *that = const_cast<SurfaceBuffer *>(this); + that->m_is_shm = wl_buffer_is_shm(m_buffer); + that->m_is_shm_resolved = true; + } + return m_is_shm; +} + +void SurfaceBuffer::sendRelease() +{ + Q_ASSERT(m_buffer); + wl_buffer_send_release(&m_buffer->resource); +} + +void SurfaceBuffer::setPageFlipperHasBuffer(bool owns) +{ + m_page_flipper_has_buffer = owns; +} + +void SurfaceBuffer::release() +{ + m_compositor->scheduleReleaseBuffer(this); +} + +void SurfaceBuffer::scheduledRelease() +{ + m_page_flipper_has_buffer = false; + if (!m_surface_has_buffer) + destructBufferState(); + if (!m_surface) { + delete this; + } +} + +void SurfaceBuffer::disown() +{ + m_surface_has_buffer = false; + + if (!m_page_flipper_has_buffer) { + destructBufferState(); + } +} + +void SurfaceBuffer::setDisplayed() +{ + m_is_displayed = true; + m_damageRect = QRect(); +} + +void SurfaceBuffer::setDamage(const QRect &rect) +{ + if (m_damageRect.isValid()) { + m_damageRect = m_damageRect.united(rect); + } + m_damageRect = rect; +} + +void SurfaceBuffer::destroyTexture() +{ +#ifdef QT_COMPOSITOR_WAYLAND_GL + if (m_texture) { + Q_ASSERT(m_guard); + m_guard->free(); + m_guard = 0; + m_texture = 0; + } +#endif +} + +void SurfaceBuffer::handleAboutToBeDisplayed() +{ + qDebug() << Q_FUNC_INFO; +} + +void SurfaceBuffer::handleDisplayed() +{ + qDebug() << Q_FUNC_INFO; +} + +void *SurfaceBuffer::handle() const +{ + if (!m_buffer) + return 0; + + if (!m_handle) { + SurfaceBuffer *that = const_cast<SurfaceBuffer *>(this); + if (isShmBuffer()) { + const uchar *data = static_cast<const uchar *>(wl_shm_buffer_get_data(m_buffer)); + int stride = wl_shm_buffer_get_stride(m_buffer); + int width = m_buffer->width; + int height = m_buffer->height; + QImage *image = new QImage(data,width,height,stride, QImage::Format_ARGB32_Premultiplied); + that->m_handle = image; +#ifdef QT_COMPOSITOR_WAYLAND_GL + } else { + QWaylandGraphicsHardwareIntegration *hwIntegration = m_compositor->graphicsHWIntegration(); + that->m_handle = hwIntegration->lockNativeBuffer(m_buffer, m_compositor->directRenderContext()); +#endif + } + } + return m_handle; +} + +void SurfaceBuffer::destroy_listener_callback(wl_listener *listener, void *data) +{ + Q_UNUSED(data); + struct surface_buffer_destroy_listener *destroy_listener = + reinterpret_cast<struct surface_buffer_destroy_listener *>(listener); + SurfaceBuffer *d = destroy_listener->surfaceBuffer; + d->destroyTexture(); + d->m_destroyed = true; + d->m_buffer = 0; +} + +void freeTexture(QOpenGLFunctions *, GLuint id) +{ + glDeleteTextures(1, &id); +} + +void SurfaceBuffer::createTexture(QWaylandGraphicsHardwareIntegration *hwIntegration, QOpenGLContext *context) +{ +#ifdef QT_COMPOSITOR_WAYLAND_GL + m_texture = hwIntegration->createTextureFromBuffer(m_buffer, context); + m_guard = new QOpenGLSharedResourceGuard(QOpenGLContext::currentContext(), m_texture, freeTexture); +#else + Q_UNUSED(hwIntegration); + Q_UNUSED(context); +#endif +} + +} + +QT_END_NAMESPACE |