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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "waylandeglclientbufferintegration_p.h"
#include <QtWaylandCompositor/QWaylandCompositor>
#include <QtWaylandCompositor/private/qwltextureorphanage_p.h>
#include <qpa/qplatformnativeinterface.h>
#include <QtOpenGL/QOpenGLTexture>
#include <QtGui/QGuiApplication>
#include <QtGui/QOpenGLContext>
#include <QtGui/QOffscreenSurface>
#include <qpa/qplatformscreen.h>
#include <QtGui/QWindow>
#include <QtCore/QPointer>
#include <QDebug>
#include <QMutex>
#include <QMutexLocker>
#include <QVarLengthArray>
#include <QtCore/private/qcore_unix_p.h>
#include <QtGui/private/qeglstreamconvenience_p.h>
#ifndef GL_TEXTURE_EXTERNAL_OES
#define GL_TEXTURE_EXTERNAL_OES 0x8D65
#endif
#ifndef EGL_WAYLAND_BUFFER_WL
#define EGL_WAYLAND_BUFFER_WL 0x31D5
#endif
#ifndef EGL_WAYLAND_EGLSTREAM_WL
#define EGL_WAYLAND_EGLSTREAM_WL 0x334B
#endif
#ifndef EGL_WAYLAND_PLANE_WL
#define EGL_WAYLAND_PLANE_WL 0x31D6
#endif
#ifndef EGL_WAYLAND_Y_INVERTED_WL
#define EGL_WAYLAND_Y_INVERTED_WL 0x31DB
#endif
#ifndef EGL_TEXTURE_RGB
#define EGL_TEXTURE_RGB 0x305D
#endif
#ifndef EGL_TEXTURE_RGBA
#define EGL_TEXTURE_RGBA 0x305E
#endif
#ifndef EGL_TEXTURE_EXTERNAL_WL
#define EGL_TEXTURE_EXTERNAL_WL 0x31DA
#endif
#ifndef EGL_TEXTURE_Y_U_V_WL
#define EGL_TEXTURE_Y_U_V_WL 0x31D7
#endif
#ifndef EGL_TEXTURE_Y_UV_WL
#define EGL_TEXTURE_Y_UV_WL 0x31D8
#endif
#ifndef EGL_TEXTURE_Y_XUXV_WL
#define EGL_TEXTURE_Y_XUXV_WL 0x31D9
#endif
#ifndef EGL_PLATFORM_X11_KHR
#define EGL_PLATFORM_X11_KHR 0x31D5
#endif
/* Needed for compatibility with Mesa older than 10.0. */
typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYWAYLANDBUFFERWL_compat) (EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
#ifndef EGL_WL_bind_wayland_display
typedef EGLBoolean (EGLAPIENTRYP PFNEGLBINDWAYLANDDISPLAYWL) (EGLDisplay dpy, struct wl_display *display);
typedef EGLBoolean (EGLAPIENTRYP PFNEGLUNBINDWAYLANDDISPLAYWL) (EGLDisplay dpy, struct wl_display *display);
#endif
#ifndef EGL_KHR_image
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);
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image);
#endif
QT_BEGIN_NAMESPACE
static const char *
egl_error_string(EGLint code)
{
#define MYERRCODE(x) case x: return #x;
switch (code) {
MYERRCODE(EGL_SUCCESS)
MYERRCODE(EGL_NOT_INITIALIZED)
MYERRCODE(EGL_BAD_ACCESS)
MYERRCODE(EGL_BAD_ALLOC)
MYERRCODE(EGL_BAD_ATTRIBUTE)
MYERRCODE(EGL_BAD_CONTEXT)
MYERRCODE(EGL_BAD_CONFIG)
MYERRCODE(EGL_BAD_CURRENT_SURFACE)
MYERRCODE(EGL_BAD_DISPLAY)
MYERRCODE(EGL_BAD_SURFACE)
MYERRCODE(EGL_BAD_MATCH)
MYERRCODE(EGL_BAD_PARAMETER)
MYERRCODE(EGL_BAD_NATIVE_PIXMAP)
MYERRCODE(EGL_BAD_NATIVE_WINDOW)
MYERRCODE(EGL_CONTEXT_LOST)
default:
return "unknown";
}
#undef MYERRCODE
}
struct BufferState
{
BufferState() = default;
enum EglMode {
ModeUninitialized,
ModeEGLImage,
ModeEGLStream
};
EGLint egl_format = EGL_TEXTURE_RGBA;
QVarLengthArray<EGLImageKHR, 3> egl_images;
QOpenGLTexture *textures[3] = {nullptr, nullptr, nullptr};
QOpenGLContext *texturesContext[3] = {nullptr, nullptr, nullptr};
QMetaObject::Connection texturesAboutToBeDestroyedConnection[3] = {QMetaObject::Connection(), QMetaObject::Connection(), QMetaObject::Connection()};
QMutex texturesLock;
EGLStreamKHR egl_stream = EGL_NO_STREAM_KHR;
bool isYInverted = true;
QSize size;
EglMode eglMode = ModeUninitialized;
};
class WaylandEglClientBufferIntegrationPrivate
{
public:
WaylandEglClientBufferIntegrationPrivate();
void initBuffer(WaylandEglClientBuffer *buffer);
void initEglTexture(WaylandEglClientBuffer *buffer, EGLint format);
bool ensureContext();
bool initEglStream(WaylandEglClientBuffer *buffer, struct ::wl_resource *bufferHandle);
void setupBufferAndCleanup(BufferState *bs, QOpenGLTexture *texture, int plane);
void handleEglstreamTexture(WaylandEglClientBuffer *buffer, wl_resource *bufferHandle);
void registerBuffer(struct ::wl_resource *buffer, BufferState state);
EGLDisplay egl_display = EGL_NO_DISPLAY;
bool display_bound = false;
::wl_display *wlDisplay = nullptr;
QOffscreenSurface *offscreenSurface = nullptr;
QOpenGLContext *localContext = nullptr;
PFNEGLBINDWAYLANDDISPLAYWL egl_bind_wayland_display = nullptr;
PFNEGLUNBINDWAYLANDDISPLAYWL egl_unbind_wayland_display = nullptr;
PFNEGLQUERYWAYLANDBUFFERWL_compat egl_query_wayland_buffer = nullptr;
PFNEGLCREATEIMAGEKHRPROC egl_create_image = nullptr;
PFNEGLDESTROYIMAGEKHRPROC egl_destroy_image = nullptr;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC gl_egl_image_target_texture_2d = nullptr;
QEGLStreamConvenience *funcs = nullptr;
static WaylandEglClientBufferIntegrationPrivate *get(WaylandEglClientBufferIntegration *integration) {
return integration ? integration->d_ptr.data() : nullptr;
}
};
WaylandEglClientBufferIntegrationPrivate::WaylandEglClientBufferIntegrationPrivate()
{
}
void WaylandEglClientBufferIntegrationPrivate::initBuffer(WaylandEglClientBuffer *buffer)
{
EGLint format;
if (egl_query_wayland_buffer(egl_display, buffer->waylandBufferHandle(), EGL_TEXTURE_FORMAT, &format))
initEglTexture(buffer, format);
}
void WaylandEglClientBufferIntegrationPrivate::initEglTexture(WaylandEglClientBuffer *buffer, EGLint format)
{
// Non-streaming case
// Resolving GL functions may need a context current, so do it only here.
if (!gl_egl_image_target_texture_2d)
gl_egl_image_target_texture_2d = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
if (!gl_egl_image_target_texture_2d) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "BindTextureToBuffer() failed. Could not find glEGLImageTargetTexture2DOES.";
return;
}
BufferState &state = *buffer->d;
state.egl_format = format;
state.eglMode = BufferState::ModeEGLImage;
#if defined(EGL_WAYLAND_Y_INVERTED_WL)
EGLint isYInverted;
EGLBoolean ret = egl_query_wayland_buffer(egl_display, buffer->waylandBufferHandle(), EGL_WAYLAND_Y_INVERTED_WL, &isYInverted);
// Yes, this looks strange, but the specification says that EGL_FALSE return
// value (not supported) should be treated the same as EGL_TRUE return value
// and EGL_TRUE in value.
state.isYInverted = (ret == EGL_FALSE || isYInverted == EGL_TRUE);
#endif
int planes = 1;
switch (format) {
default:
case EGL_TEXTURE_RGB:
case EGL_TEXTURE_RGBA:
case EGL_TEXTURE_EXTERNAL_WL:
planes = 1;
break;
case EGL_TEXTURE_Y_UV_WL:
planes = 2;
break;
case EGL_TEXTURE_Y_U_V_WL:
planes = 3;
break;
case EGL_TEXTURE_Y_XUXV_WL:
planes = 2;
break;
}
for (int i = 0; i < planes; i++) {
EGLint attribs[5] = { EGL_WAYLAND_PLANE_WL, i, EGL_NONE };
#ifdef EGL_EXT_protected_content
if (buffer->isProtected()) {
attribs[2] = EGL_PROTECTED_CONTENT_EXT;
attribs[3] = EGL_TRUE;
attribs[4] = EGL_NONE;
}
#endif
EGLImageKHR image = egl_create_image(egl_display,
EGL_NO_CONTEXT,
EGL_WAYLAND_BUFFER_WL,
buffer->waylandBufferHandle(),
attribs);
if (image == EGL_NO_IMAGE_KHR) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to create EGL image for plane" << i;
}
state.egl_images << image;
QMutexLocker locker(&state.texturesLock);
state.textures[i] = nullptr;
}
}
bool WaylandEglClientBufferIntegrationPrivate::ensureContext()
{
bool localContextNeeded = false;
if (!QOpenGLContext::currentContext()) {
if (!localContext && QOpenGLContext::globalShareContext()) {
localContext = new QOpenGLContext;
localContext->setShareContext(QOpenGLContext::globalShareContext());
localContext->create();
}
if (localContext) {
if (!offscreenSurface) {
offscreenSurface = new QOffscreenSurface;
offscreenSurface->setFormat(localContext->format());
offscreenSurface->create();
}
localContext->makeCurrent(offscreenSurface);
localContextNeeded = true;
}
}
return localContextNeeded;
}
void WaylandEglClientBufferIntegrationPrivate::setupBufferAndCleanup(BufferState *bs, QOpenGLTexture *texture, int plane)
{
QMutexLocker locker(&bs->texturesLock);
bs->textures[plane] = texture;
bs->texturesContext[plane] = QOpenGLContext::currentContext();
Q_ASSERT(bs->texturesContext[plane] != nullptr);
qCDebug(qLcWaylandCompositorHardwareIntegration)
<< Q_FUNC_INFO
<< "(egl) creating a cleanup-lambda for QOpenGLContext::aboutToBeDestroyed!"
<< ", texture: " << bs->textures[plane]
<< ", ctx: " << (void*)bs->texturesContext[plane];
bs->texturesAboutToBeDestroyedConnection[plane] =
QObject::connect(bs->texturesContext[plane], &QOpenGLContext::aboutToBeDestroyed,
bs->texturesContext[plane], [bs, plane]() {
QMutexLocker locker(&bs->texturesLock);
// See above lock - there is a chance that this has already been removed from textures[plane]!
// Furthermore, we can trust that all the rest (e.g. disconnect) has also been properly executed!
if (bs->textures[plane] == nullptr)
return;
delete bs->textures[plane];
qCDebug(qLcWaylandCompositorHardwareIntegration)
<< Q_FUNC_INFO
<< "texture deleted due to QOpenGLContext::aboutToBeDestroyed!"
<< "Pointer (now dead) was:" << (void*)(bs->textures[plane])
<< " Associated context (about to die too) is: " << (void*)(bs->texturesContext[plane]);
bs->textures[plane] = nullptr;
bs->texturesContext[plane] = nullptr;
QObject::disconnect(bs->texturesAboutToBeDestroyedConnection[plane]);
bs->texturesAboutToBeDestroyedConnection[plane] = QMetaObject::Connection();
}, Qt::DirectConnection);
}
bool WaylandEglClientBufferIntegrationPrivate::initEglStream(WaylandEglClientBuffer *buffer, wl_resource *bufferHandle)
{
BufferState &state = *buffer->d;
state.egl_format = EGL_TEXTURE_EXTERNAL_WL;
state.isYInverted = false;
EGLNativeFileDescriptorKHR streamFd = EGL_NO_FILE_DESCRIPTOR_KHR;
if (egl_query_wayland_buffer(egl_display, bufferHandle, EGL_WAYLAND_BUFFER_WL, &streamFd)) {
state.egl_stream = funcs->create_stream_from_file_descriptor(egl_display, streamFd);
close(streamFd);
} else {
EGLAttrib stream_attribs[] = {
EGL_WAYLAND_EGLSTREAM_WL, (EGLAttrib)bufferHandle,
EGL_NONE
};
state.egl_stream = funcs->create_stream_attrib_nv(egl_display, stream_attribs);
}
if (state.egl_stream == EGL_NO_STREAM_KHR) {
qCWarning(qLcWaylandCompositorHardwareIntegration, "%s:%d: eglCreateStreamFromFileDescriptorKHR failed: 0x%x", Q_FUNC_INFO, __LINE__, eglGetError());
return false;
}
state.eglMode = BufferState::ModeEGLStream;
if (!QOpenGLContext::currentContext()) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "EglClientBufferIntegration: creating texture with no current context";
return false;
}
auto texture = new QOpenGLTexture(static_cast<QOpenGLTexture::Target>(GL_TEXTURE_EXTERNAL_OES));
texture->create();
setupBufferAndCleanup(buffer->d, texture, 0);
qCDebug(qLcWaylandCompositorHardwareIntegration)
<< " NEW texture! It's pointer and ctx pointer: "
<< (void*)state.textures[0] << "; " << (void*)state.texturesContext[0];
texture->bind();
auto newStream = funcs->stream_consumer_gltexture(egl_display, state.egl_stream);
if (!newStream) {
EGLint code = eglGetError();
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Could not initialize EGLStream:" << egl_error_string(code) << Qt::hex << (long)code;
funcs->destroy_stream(egl_display, state.egl_stream);
state.egl_stream = EGL_NO_STREAM_KHR;
return false;
}
return true;
}
void WaylandEglClientBufferIntegrationPrivate::handleEglstreamTexture(WaylandEglClientBuffer *buffer, struct ::wl_resource *bufferHandle)
{
bool usingLocalContext = ensureContext();
if (buffer->d->eglMode == BufferState::ModeUninitialized) {
bool streamOK = initEglStream(buffer, bufferHandle);
if (!streamOK)
return;
}
BufferState &state = *buffer->d;
auto texture = state.textures[0];
// EGLStream requires calling acquire on every frame.
texture->bind();
EGLint stream_state;
funcs->query_stream(egl_display, state.egl_stream, EGL_STREAM_STATE_KHR, &stream_state);
if (stream_state == EGL_STREAM_STATE_NEW_FRAME_AVAILABLE_KHR) {
if (funcs->stream_consumer_acquire(egl_display, state.egl_stream) != EGL_TRUE)
qCWarning(qLcWaylandCompositorHardwareIntegration,
"%s:%d: eglStreamConsumerAcquireKHR failed: 0x%x", Q_FUNC_INFO, __LINE__,
eglGetError());
}
if (usingLocalContext)
localContext->doneCurrent();
}
WaylandEglClientBufferIntegration::WaylandEglClientBufferIntegration()
: d_ptr(new WaylandEglClientBufferIntegrationPrivate)
{
}
WaylandEglClientBufferIntegration::~WaylandEglClientBufferIntegration()
{
Q_D(WaylandEglClientBufferIntegration);
if (d->egl_unbind_wayland_display && d->display_bound) {
Q_ASSERT(d->wlDisplay);
if (!d->egl_unbind_wayland_display(d->egl_display, d->wlDisplay))
qCWarning(qLcWaylandCompositorHardwareIntegration) << "eglUnbindWaylandDisplayWL failed";
}
}
void WaylandEglClientBufferIntegration::initializeHardware(struct wl_display *display)
{
Q_D(WaylandEglClientBufferIntegration);
const bool ignoreBindDisplay = !qgetenv("QT_WAYLAND_IGNORE_BIND_DISPLAY").isEmpty();
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
if (!nativeInterface) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to initialize EGL display. No native platform interface available.";
return;
}
d->egl_display = nativeInterface->nativeResourceForIntegration("EglDisplay");
if (!d->egl_display) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to initialize EGL display. Could not get EglDisplay for window.";
return;
}
const char *extensionString = eglQueryString(d->egl_display, EGL_EXTENSIONS);
if ((!extensionString || !strstr(extensionString, "EGL_WL_bind_wayland_display")) && !ignoreBindDisplay) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to initialize EGL display. There is no EGL_WL_bind_wayland_display extension.";
return;
}
d->egl_bind_wayland_display = reinterpret_cast<PFNEGLBINDWAYLANDDISPLAYWL>(eglGetProcAddress("eglBindWaylandDisplayWL"));
d->egl_unbind_wayland_display = reinterpret_cast<PFNEGLUNBINDWAYLANDDISPLAYWL>(eglGetProcAddress("eglUnbindWaylandDisplayWL"));
if ((!d->egl_bind_wayland_display || !d->egl_unbind_wayland_display) && !ignoreBindDisplay) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to initialize EGL display. Could not find eglBindWaylandDisplayWL and eglUnbindWaylandDisplayWL.";
return;
}
d->egl_query_wayland_buffer = reinterpret_cast<PFNEGLQUERYWAYLANDBUFFERWL_compat>(eglGetProcAddress("eglQueryWaylandBufferWL"));
if (!d->egl_query_wayland_buffer) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to initialize EGL display. Could not find eglQueryWaylandBufferWL.";
return;
}
d->egl_create_image = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR"));
d->egl_destroy_image = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR"));
if (!d->egl_create_image || !d->egl_destroy_image) {
qCWarning(qLcWaylandCompositorHardwareIntegration)
<< "Failed to initialize EGL display. Could not find eglCreateImageKHR and eglDestroyImageKHR.";
return;
}
if (d->egl_bind_wayland_display && d->egl_unbind_wayland_display) {
d->display_bound = d->egl_bind_wayland_display(d->egl_display, display);
if (!d->display_bound)
qCDebug(qLcWaylandCompositorHardwareIntegration) << "Wayland display already bound by other client buffer integration.";
d->wlDisplay = display;
}
d->funcs = new QEGLStreamConvenience;
d->funcs->initialize(d->egl_display);
}
QtWayland::ClientBuffer *WaylandEglClientBufferIntegration::createBufferFor(wl_resource *buffer)
{
Q_D(WaylandEglClientBufferIntegration);
int w = -1;
bool q = d->egl_query_wayland_buffer(d->egl_display, buffer, EGL_WIDTH, &w);
if (!q || w <= 0)
return nullptr;
return new WaylandEglClientBuffer(this, buffer);
}
WaylandEglClientBuffer::WaylandEglClientBuffer(WaylandEglClientBufferIntegration *integration, wl_resource *buffer)
: ClientBuffer(buffer)
, m_integration(integration)
{
auto *p = WaylandEglClientBufferIntegrationPrivate::get(m_integration);
d = new BufferState;
if (buffer && !wl_shm_buffer_get(buffer)) {
EGLint width, height;
p->egl_query_wayland_buffer(p->egl_display, buffer, EGL_WIDTH, &width);
p->egl_query_wayland_buffer(p->egl_display, buffer, EGL_HEIGHT, &height);
d->size = QSize(width, height);
p->initBuffer(this);
}
}
WaylandEglClientBuffer::~WaylandEglClientBuffer()
{
auto *p = WaylandEglClientBufferIntegrationPrivate::get(m_integration);
if (p) {
for (auto image : d->egl_images)
p->egl_destroy_image(p->egl_display, image);
if (d->egl_stream)
p->funcs->destroy_stream(p->egl_display, d->egl_stream);
}
{
QMutexLocker locker(&d->texturesLock);
for (int i=0; i<3; i++) {
if (d->textures[i] != nullptr) {
qCDebug(qLcWaylandCompositorHardwareIntegration)
<< Q_FUNC_INFO << " handing over texture!"
<< (void*)d->textures[i] << "; " << (void*)d->texturesContext[i]
<< " ... current context might be the same: " << QOpenGLContext::currentContext();
QtWayland::QWaylandTextureOrphanage::instance()->admitTexture(
d->textures[i], d->texturesContext[i]);
d->textures[i] = nullptr; // in case the aboutToBeDestroyed lambda is called while we where here
d->texturesContext[i] = nullptr;
QObject::disconnect(d->texturesAboutToBeDestroyedConnection[i]);
d->texturesAboutToBeDestroyedConnection[i] = QMetaObject::Connection();
}
}
}
delete d;
}
static QWaylandBufferRef::BufferFormatEgl formatFromEglFormat(EGLint format) {
switch (format) {
case EGL_TEXTURE_RGB:
return QWaylandBufferRef::BufferFormatEgl_RGB;
case EGL_TEXTURE_RGBA:
return QWaylandBufferRef::BufferFormatEgl_RGBA;
case EGL_TEXTURE_EXTERNAL_WL:
return QWaylandBufferRef::BufferFormatEgl_EXTERNAL_OES;
case EGL_TEXTURE_Y_UV_WL:
return QWaylandBufferRef::BufferFormatEgl_Y_UV;
case EGL_TEXTURE_Y_U_V_WL:
return QWaylandBufferRef::BufferFormatEgl_Y_U_V;
case EGL_TEXTURE_Y_XUXV_WL:
return QWaylandBufferRef::BufferFormatEgl_Y_XUXV;
}
return QWaylandBufferRef::BufferFormatEgl_RGBA;
}
static QOpenGLTexture::TextureFormat openGLFormatFromEglFormat(EGLint format) {
switch (format) {
case EGL_TEXTURE_RGB:
return QOpenGLTexture::RGBFormat;
case EGL_TEXTURE_RGBA:
return QOpenGLTexture::RGBAFormat;
default:
return QOpenGLTexture::NoFormat;
}
}
QWaylandBufferRef::BufferFormatEgl WaylandEglClientBuffer::bufferFormatEgl() const
{
return formatFromEglFormat(d->egl_format);
}
QOpenGLTexture *WaylandEglClientBuffer::toOpenGlTexture(int plane)
{
auto *p = WaylandEglClientBufferIntegrationPrivate::get(m_integration);
// At this point we should have a valid OpenGL context, so it's safe to destroy textures
QtWayland::QWaylandTextureOrphanage::instance()->deleteTextures();
if (!m_buffer)
return nullptr;
auto texture = d->textures[plane];
if (d->eglMode == BufferState::ModeEGLStream)
return texture; // EGLStreams texture is maintained by handle_eglstream_texture()
const auto target = static_cast<QOpenGLTexture::Target>(d->egl_format == EGL_TEXTURE_EXTERNAL_WL ? GL_TEXTURE_EXTERNAL_OES
: GL_TEXTURE_2D);
if (!texture) {
texture = new QOpenGLTexture(target);
texture->setFormat(openGLFormatFromEglFormat(d->egl_format));
texture->setSize(d->size.width(), d->size.height());
texture->create();
p->setupBufferAndCleanup(this->d, texture, plane);
}
if (m_textureDirty) {
m_textureDirty = false;
texture->bind();
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
p->gl_egl_image_target_texture_2d(target, d->egl_images[plane]);
#ifdef GL_EXT_protected_textures
if (isProtected())
glTexParameteri(target, GL_TEXTURE_PROTECTED_EXT, GL_TRUE);
#endif
}
return texture;
}
void WaylandEglClientBuffer::setCommitted(QRegion &damage)
{
ClientBuffer::setCommitted(damage);
if (d->eglMode == BufferState::ModeEGLStream || d->eglMode == BufferState::ModeUninitialized) {
auto *p = WaylandEglClientBufferIntegrationPrivate::get(m_integration);
p->handleEglstreamTexture(this, waylandBufferHandle());
}
}
bool WaylandEglClientBuffer::isProtected()
{
if (m_integration && m_buffer)
return m_integration->isProtected(m_buffer);
return false;
}
QWaylandSurface::Origin WaylandEglClientBuffer::origin() const
{
return d->isYInverted ? QWaylandSurface::OriginTopLeft : QWaylandSurface::OriginBottomLeft;
}
quintptr WaylandEglClientBuffer::lockNativeBuffer()
{
auto *p = WaylandEglClientBufferIntegrationPrivate::get(m_integration);
if (d->egl_stream != EGL_NO_STREAM_KHR)
return 0;
EGLImageKHR image = p->egl_create_image(p->egl_display, EGL_NO_CONTEXT,
EGL_WAYLAND_BUFFER_WL,
m_buffer, nullptr);
return reinterpret_cast<quintptr>(image);
}
void WaylandEglClientBuffer::unlockNativeBuffer(quintptr native_buffer) const
{
if (!native_buffer)
return;
auto *p = WaylandEglClientBufferIntegrationPrivate::get(m_integration);
EGLImageKHR image = reinterpret_cast<EGLImageKHR>(native_buffer);
p->egl_destroy_image(p->egl_display, image);
}
QSize WaylandEglClientBuffer::size() const
{
return d->size;
}
QT_END_NAMESPACE