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kwin/platformsupport/scenes/opengl/abstract_egl_backend.cpp
Vlad Zagorodniy bebe81209c Port QPA away from Wayland 
Summary:
So far wayland was used by internal clients to submit raster buffers
and position themselves on the screen. While we didn't have issues with
submitting raster buffers, there were some problems with positioning
task switchers. Mostly, because we had effectively two paths that may
alter geometry.

A better approach to deal with internal clients is to let our QPA use
kwin core api directly. This way we can eliminate unnecessary roundtrips
as well make geometry handling much easier and comprehensible.

The last missing piece is shadows. Both Plasma::Dialog and Breeze widget
style use platform-specific APIs to set and unset shadows. We need to
add shadows API to KWindowSystem. Even though some internal clients lack
drop-shadows at the moment, I don't consider it to be a blocker. We can
add shadows back later on.

CCBUG: 386304

Reviewers: #kwin, davidedmundson, romangg

Reviewed By: #kwin, romangg

Subscribers: romangg, kwin

Tags: #kwin

Maniphest Tasks: T9600

Differential Revision: https://phabricator.kde.org/D22810
2019-09-23 17:28:56 +03:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "abstract_egl_backend.h"
#include "linux_dmabuf.h"
#include "texture.h"
#include "composite.h"
#include "egl_context_attribute_builder.h"
#include "options.h"
#include "platform.h"
#include "scene.h"
#include "wayland_server.h"
#include <KWayland/Server/buffer_interface.h>
#include <KWayland/Server/display.h>
#include <KWayland/Server/surface_interface.h>
// kwin libs
#include <logging.h>
#include <kwinglplatform.h>
#include <kwinglutils.h>
// Qt
#include <QOpenGLContext>
#include <QOpenGLFramebufferObject>
#include <memory>
namespace KWin
{
typedef GLboolean(*eglBindWaylandDisplayWL_func)(EGLDisplay dpy, wl_display *display);
typedef GLboolean(*eglUnbindWaylandDisplayWL_func)(EGLDisplay dpy, wl_display *display);
typedef GLboolean(*eglQueryWaylandBufferWL_func)(EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
eglBindWaylandDisplayWL_func eglBindWaylandDisplayWL = nullptr;
eglUnbindWaylandDisplayWL_func eglUnbindWaylandDisplayWL = nullptr;
eglQueryWaylandBufferWL_func eglQueryWaylandBufferWL = nullptr;
#ifndef EGL_WAYLAND_BUFFER_WL
#define EGL_WAYLAND_BUFFER_WL 0x31D5
#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
AbstractEglBackend::AbstractEglBackend()
: QObject(nullptr)
, OpenGLBackend()
{
connect(Compositor::self(), &Compositor::aboutToDestroy, this, &AbstractEglBackend::unbindWaylandDisplay);
}
AbstractEglBackend::~AbstractEglBackend() = default;
void AbstractEglBackend::unbindWaylandDisplay()
{
if (eglUnbindWaylandDisplayWL && m_display != EGL_NO_DISPLAY) {
eglUnbindWaylandDisplayWL(m_display, *(WaylandServer::self()->display()));
}
}
void AbstractEglBackend::cleanup()
{
cleanupGL();
doneCurrent();
eglDestroyContext(m_display, m_context);
cleanupSurfaces();
eglReleaseThread();
kwinApp()->platform()->setSceneEglContext(EGL_NO_CONTEXT);
kwinApp()->platform()->setSceneEglSurface(EGL_NO_SURFACE);
kwinApp()->platform()->setSceneEglConfig(nullptr);
}
void AbstractEglBackend::cleanupSurfaces()
{
if (m_surface != EGL_NO_SURFACE) {
eglDestroySurface(m_display, m_surface);
}
}
bool AbstractEglBackend::initEglAPI()
{
EGLint major, minor;
if (eglInitialize(m_display, &major, &minor) == EGL_FALSE) {
qCWarning(KWIN_OPENGL) << "eglInitialize failed";
EGLint error = eglGetError();
if (error != EGL_SUCCESS) {
qCWarning(KWIN_OPENGL) << "Error during eglInitialize " << error;
}
return false;
}
EGLint error = eglGetError();
if (error != EGL_SUCCESS) {
qCWarning(KWIN_OPENGL) << "Error during eglInitialize " << error;
return false;
}
qCDebug(KWIN_OPENGL) << "Egl Initialize succeeded";
if (eglBindAPI(isOpenGLES() ? EGL_OPENGL_ES_API : EGL_OPENGL_API) == EGL_FALSE) {
qCCritical(KWIN_OPENGL) << "bind OpenGL API failed";
return false;
}
qCDebug(KWIN_OPENGL) << "EGL version: " << major << "." << minor;
const QByteArray eglExtensions = eglQueryString(m_display, EGL_EXTENSIONS);
setExtensions(eglExtensions.split(' '));
return true;
}
typedef void (*eglFuncPtr)();
static eglFuncPtr getProcAddress(const char* name)
{
return eglGetProcAddress(name);
}
void AbstractEglBackend::initKWinGL()
{
GLPlatform *glPlatform = GLPlatform::instance();
glPlatform->detect(EglPlatformInterface);
options->setGlPreferBufferSwap(options->glPreferBufferSwap()); // resolve autosetting
if (options->glPreferBufferSwap() == Options::AutoSwapStrategy)
options->setGlPreferBufferSwap('e'); // for unknown drivers - should not happen
glPlatform->printResults();
initGL(&getProcAddress);
}
void AbstractEglBackend::initBufferAge()
{
setSupportsBufferAge(false);
if (hasExtension(QByteArrayLiteral("EGL_EXT_buffer_age"))) {
const QByteArray useBufferAge = qgetenv("KWIN_USE_BUFFER_AGE");
if (useBufferAge != "0")
setSupportsBufferAge(true);
}
}
void AbstractEglBackend::initWayland()
{
if (!WaylandServer::self()) {
return;
}
if (hasExtension(QByteArrayLiteral("EGL_WL_bind_wayland_display"))) {
eglBindWaylandDisplayWL = (eglBindWaylandDisplayWL_func)eglGetProcAddress("eglBindWaylandDisplayWL");
eglUnbindWaylandDisplayWL = (eglUnbindWaylandDisplayWL_func)eglGetProcAddress("eglUnbindWaylandDisplayWL");
eglQueryWaylandBufferWL = (eglQueryWaylandBufferWL_func)eglGetProcAddress("eglQueryWaylandBufferWL");
// only bind if not already done
if (waylandServer()->display()->eglDisplay() != eglDisplay()) {
if (!eglBindWaylandDisplayWL(eglDisplay(), *(WaylandServer::self()->display()))) {
eglUnbindWaylandDisplayWL = nullptr;
eglQueryWaylandBufferWL = nullptr;
} else {
waylandServer()->display()->setEglDisplay(eglDisplay());
}
}
}
LinuxDmabuf::factory(this);
}
void AbstractEglBackend::initClientExtensions()
{
// Get the list of client extensions
const char* clientExtensionsCString = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
const QByteArray clientExtensionsString = QByteArray::fromRawData(clientExtensionsCString, qstrlen(clientExtensionsCString));
if (clientExtensionsString.isEmpty()) {
// If eglQueryString() returned NULL, the implementation doesn't support
// EGL_EXT_client_extensions. Expect an EGL_BAD_DISPLAY error.
(void) eglGetError();
}
m_clientExtensions = clientExtensionsString.split(' ');
}
bool AbstractEglBackend::hasClientExtension(const QByteArray &ext) const
{
return m_clientExtensions.contains(ext);
}
bool AbstractEglBackend::makeCurrent()
{
if (QOpenGLContext *context = QOpenGLContext::currentContext()) {
// Workaround to tell Qt that no QOpenGLContext is current
context->doneCurrent();
}
const bool current = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
return current;
}
void AbstractEglBackend::doneCurrent()
{
eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
}
bool AbstractEglBackend::isOpenGLES() const
{
if (qstrcmp(qgetenv("KWIN_COMPOSE"), "O2ES") == 0) {
return true;
}
return QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES;
}
bool AbstractEglBackend::createContext()
{
const bool haveRobustness = hasExtension(QByteArrayLiteral("EGL_EXT_create_context_robustness"));
const bool haveCreateContext = hasExtension(QByteArrayLiteral("EGL_KHR_create_context"));
const bool haveContextPriority = hasExtension(QByteArrayLiteral("EGL_IMG_context_priority"));
std::vector<std::unique_ptr<AbstractOpenGLContextAttributeBuilder>> candidates;
if (isOpenGLES()) {
if (haveCreateContext && haveRobustness && haveContextPriority) {
auto glesRobustPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesRobustPriority->setVersion(2);
glesRobustPriority->setRobust(true);
glesRobustPriority->setHighPriority(true);
candidates.push_back(std::move(glesRobustPriority));
}
if (haveCreateContext && haveRobustness) {
auto glesRobust = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesRobust->setVersion(2);
glesRobust->setRobust(true);
candidates.push_back(std::move(glesRobust));
}
if (haveContextPriority) {
auto glesPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesPriority->setVersion(2);
glesPriority->setHighPriority(true);
candidates.push_back(std::move(glesPriority));
}
auto gles = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
gles->setVersion(2);
candidates.push_back(std::move(gles));
} else {
if (options->glCoreProfile() && haveCreateContext) {
if (haveRobustness && haveContextPriority) {
auto robustCorePriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustCorePriority->setVersion(3, 1);
robustCorePriority->setRobust(true);
robustCorePriority->setHighPriority(true);
candidates.push_back(std::move(robustCorePriority));
}
if (haveRobustness) {
auto robustCore = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustCore->setVersion(3, 1);
robustCore->setRobust(true);
candidates.push_back(std::move(robustCore));
}
if (haveContextPriority) {
auto corePriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
corePriority->setVersion(3, 1);
corePriority->setHighPriority(true);
candidates.push_back(std::move(corePriority));
}
auto core = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
core->setVersion(3, 1);
candidates.push_back(std::move(core));
}
if (haveRobustness && haveCreateContext && haveContextPriority) {
auto robustPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustPriority->setRobust(true);
robustPriority->setHighPriority(true);
candidates.push_back(std::move(robustPriority));
}
if (haveRobustness && haveCreateContext) {
auto robust = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robust->setRobust(true);
candidates.push_back(std::move(robust));
}
candidates.emplace_back(new EglContextAttributeBuilder);
}
EGLContext ctx = EGL_NO_CONTEXT;
for (auto it = candidates.begin(); it != candidates.end(); it++) {
const auto attribs = (*it)->build();
ctx = eglCreateContext(m_display, config(), EGL_NO_CONTEXT, attribs.data());
if (ctx != EGL_NO_CONTEXT) {
qCDebug(KWIN_OPENGL) << "Created EGL context with attributes:" << (*it).get();
break;
}
}
if (ctx == EGL_NO_CONTEXT) {
qCCritical(KWIN_OPENGL) << "Create Context failed";
return false;
}
m_context = ctx;
kwinApp()->platform()->setSceneEglContext(m_context);
return true;
}
void AbstractEglBackend::setEglDisplay(const EGLDisplay &display) {
m_display = display;
kwinApp()->platform()->setSceneEglDisplay(display);
}
void AbstractEglBackend::setConfig(const EGLConfig &config)
{
m_config = config;
kwinApp()->platform()->setSceneEglConfig(config);
}
void AbstractEglBackend::setSurface(const EGLSurface &surface)
{
m_surface = surface;
kwinApp()->platform()->setSceneEglSurface(surface);
}
AbstractEglTexture::AbstractEglTexture(SceneOpenGLTexture *texture, AbstractEglBackend *backend)
: SceneOpenGLTexturePrivate()
, q(texture)
, m_backend(backend)
, m_image(EGL_NO_IMAGE_KHR)
{
m_target = GL_TEXTURE_2D;
}
AbstractEglTexture::~AbstractEglTexture()
{
if (m_image != EGL_NO_IMAGE_KHR) {
eglDestroyImageKHR(m_backend->eglDisplay(), m_image);
}
}
OpenGLBackend *AbstractEglTexture::backend()
{
return m_backend;
}
bool AbstractEglTexture::loadTexture(WindowPixmap *pixmap)
{
// FIXME: Refactor this method.
const auto &buffer = pixmap->buffer();
if (buffer.isNull()) {
if (updateFromFBO(pixmap->fbo())) {
return true;
}
if (loadInternalImageObject(pixmap)) {
return true;
}
return false;
}
// try Wayland loading
if (auto s = pixmap->surface()) {
s->resetTrackedDamage();
}
if (buffer->linuxDmabufBuffer()) {
return loadDmabufTexture(buffer);
} else if (buffer->shmBuffer()) {
return loadShmTexture(buffer);
}
return loadEglTexture(buffer);
}
void AbstractEglTexture::updateTexture(WindowPixmap *pixmap)
{
// FIXME: Refactor this method.
const auto &buffer = pixmap->buffer();
if (buffer.isNull()) {
if (updateFromFBO(pixmap->fbo())) {
return;
}
if (updateFromInternalImageObject(pixmap)) {
return;
}
return;
}
auto s = pixmap->surface();
if (DmabufBuffer *dmabuf = static_cast<DmabufBuffer *>(buffer->linuxDmabufBuffer())) {
q->bind();
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES) dmabuf->images()[0]); //TODO
q->unbind();
if (m_image != EGL_NO_IMAGE_KHR) {
eglDestroyImageKHR(m_backend->eglDisplay(), m_image);
}
m_image = EGL_NO_IMAGE_KHR; // The wl_buffer has ownership of the image
// The origin in a dmabuf-buffer is at the upper-left corner, so the meaning
// of Y-inverted is the inverse of OpenGL.
const bool yInverted = !(dmabuf->flags() & KWayland::Server::LinuxDmabufUnstableV1Interface::YInverted);
if (m_size != dmabuf->size() || yInverted != q->isYInverted()) {
m_size = dmabuf->size();
q->setYInverted(yInverted);
}
if (s) {
s->resetTrackedDamage();
}
return;
}
if (!buffer->shmBuffer()) {
q->bind();
EGLImageKHR image = attach(buffer);
q->unbind();
if (image != EGL_NO_IMAGE_KHR) {
if (m_image != EGL_NO_IMAGE_KHR) {
eglDestroyImageKHR(m_backend->eglDisplay(), m_image);
}
m_image = image;
}
if (s) {
s->resetTrackedDamage();
}
return;
}
// shm fallback
const QImage &image = buffer->data();
if (image.isNull() || !s) {
return;
}
if (image.size() != m_size) {
// buffer size has changed, reload shm texture
if (!loadTexture(pixmap)) {
return;
}
}
Q_ASSERT(image.size() == m_size);
q->bind();
const QRegion damage = s->trackedDamage();
s->resetTrackedDamage();
auto scale = s->scale(); //damage is normalised, so needs converting up to match texture
// TODO: this should be shared with GLTexture::update
if (GLPlatform::instance()->isGLES()) {
if (s_supportsARGB32 && (image.format() == QImage::Format_ARGB32 || image.format() == QImage::Format_ARGB32_Premultiplied)) {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
for (const QRect &rect : damage) {
auto scaledRect = QRect(rect.x() * scale, rect.y() * scale, rect.width() * scale, rect.height() * scale);
glTexSubImage2D(m_target, 0, scaledRect.x(), scaledRect.y(), scaledRect.width(), scaledRect.height(),
GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.copy(scaledRect).bits());
}
} else {
const QImage im = image.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
for (const QRect &rect : damage) {
auto scaledRect = QRect(rect.x() * scale, rect.y() * scale, rect.width() * scale, rect.height() * scale);
glTexSubImage2D(m_target, 0, scaledRect.x(), scaledRect.y(), scaledRect.width(), scaledRect.height(),
GL_RGBA, GL_UNSIGNED_BYTE, im.copy(scaledRect).bits());
}
}
} else {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
for (const QRect &rect : damage) {
auto scaledRect = QRect(rect.x() * scale, rect.y() * scale, rect.width() * scale, rect.height() * scale);
glTexSubImage2D(m_target, 0, scaledRect.x(), scaledRect.y(), scaledRect.width(), scaledRect.height(),
GL_BGRA, GL_UNSIGNED_BYTE, im.copy(scaledRect).bits());
}
}
q->unbind();
}
bool AbstractEglTexture::loadShmTexture(const QPointer< KWayland::Server::BufferInterface > &buffer)
{
const QImage &image = buffer->data();
if (image.isNull()) {
return false;
}
glGenTextures(1, &m_texture);
q->setWrapMode(GL_CLAMP_TO_EDGE);
q->setFilter(GL_LINEAR);
q->bind();
const QSize &size = image.size();
// TODO: this should be shared with GLTexture(const QImage&, GLenum)
GLenum format = 0;
switch (image.format()) {
case QImage::Format_ARGB32:
case QImage::Format_ARGB32_Premultiplied:
format = GL_RGBA8;
break;
case QImage::Format_RGB32:
format = GL_RGB8;
break;
default:
return false;
}
if (GLPlatform::instance()->isGLES()) {
if (s_supportsARGB32 && format == GL_RGBA8) {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
glTexImage2D(m_target, 0, GL_BGRA_EXT, im.width(), im.height(),
0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.bits());
} else {
const QImage im = image.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
glTexImage2D(m_target, 0, GL_RGBA, im.width(), im.height(),
0, GL_RGBA, GL_UNSIGNED_BYTE, im.bits());
}
} else {
glTexImage2D(m_target, 0, format, size.width(), size.height(), 0,
GL_BGRA, GL_UNSIGNED_BYTE, image.bits());
}
q->unbind();
q->setYInverted(true);
m_size = size;
updateMatrix();
return true;
}
bool AbstractEglTexture::loadEglTexture(const QPointer< KWayland::Server::BufferInterface > &buffer)
{
if (!eglQueryWaylandBufferWL) {
return false;
}
if (!buffer->resource()) {
return false;
}
glGenTextures(1, &m_texture);
q->setWrapMode(GL_CLAMP_TO_EDGE);
q->setFilter(GL_LINEAR);
q->bind();
m_image = attach(buffer);
q->unbind();
if (EGL_NO_IMAGE_KHR == m_image) {
qCDebug(KWIN_OPENGL) << "failed to create egl image";
q->discard();
return false;
}
return true;
}
bool AbstractEglTexture::loadDmabufTexture(const QPointer< KWayland::Server::BufferInterface > &buffer)
{
DmabufBuffer *dmabuf = static_cast<DmabufBuffer *>(buffer->linuxDmabufBuffer());
if (!dmabuf || dmabuf->images()[0] == EGL_NO_IMAGE_KHR) {
qCritical(KWIN_OPENGL) << "Invalid dmabuf-based wl_buffer";
q->discard();
return false;
}
Q_ASSERT(m_image == EGL_NO_IMAGE_KHR);
glGenTextures(1, &m_texture);
q->setWrapMode(GL_CLAMP_TO_EDGE);
q->setFilter(GL_NEAREST);
q->bind();
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES) dmabuf->images()[0]);
q->unbind();
m_size = dmabuf->size();
q->setYInverted(!(dmabuf->flags() & KWayland::Server::LinuxDmabufUnstableV1Interface::YInverted));
return true;
}
bool AbstractEglTexture::loadInternalImageObject(WindowPixmap *pixmap)
{
// FIXME: Share some code with loadShmTexture().
const QImage image = pixmap->internalImage();
if (image.isNull()) {
return false;
}
glGenTextures(1, &m_texture);
q->setFilter(GL_LINEAR);
q->setWrapMode(GL_CLAMP_TO_EDGE);
q->setYInverted(true);
q->bind();
const QSize &size = image.size();
// TODO: this should be shared with GLTexture(const QImage&, GLenum)
GLenum format = 0;
switch (image.format()) {
case QImage::Format_ARGB32:
case QImage::Format_ARGB32_Premultiplied:
format = GL_RGBA8;
break;
case QImage::Format_RGB32:
format = GL_RGB8;
break;
default:
return false;
}
if (GLPlatform::instance()->isGLES()) {
if (s_supportsARGB32 && format == GL_RGBA8) {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
glTexImage2D(m_target, 0, GL_BGRA_EXT, im.width(), im.height(),
0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.bits());
} else {
const QImage im = image.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
glTexImage2D(m_target, 0, GL_RGBA, im.width(), im.height(),
0, GL_RGBA, GL_UNSIGNED_BYTE, im.bits());
}
} else {
glTexImage2D(m_target, 0, format, size.width(), size.height(), 0,
GL_BGRA, GL_UNSIGNED_BYTE, image.bits());
}
q->unbind();
m_size = size;
updateMatrix();
return true;
}
EGLImageKHR AbstractEglTexture::attach(const QPointer< KWayland::Server::BufferInterface > &buffer)
{
EGLint format, yInverted;
eglQueryWaylandBufferWL(m_backend->eglDisplay(), buffer->resource(), EGL_TEXTURE_FORMAT, &format);
if (format != EGL_TEXTURE_RGB && format != EGL_TEXTURE_RGBA) {
qCDebug(KWIN_OPENGL) << "Unsupported texture format: " << format;
return EGL_NO_IMAGE_KHR;
}
if (!eglQueryWaylandBufferWL(m_backend->eglDisplay(), buffer->resource(), EGL_WAYLAND_Y_INVERTED_WL, &yInverted)) {
// if EGL_WAYLAND_Y_INVERTED_WL is not supported wl_buffer should be treated as if value were EGL_TRUE
yInverted = EGL_TRUE;
}
const EGLint attribs[] = {
EGL_WAYLAND_PLANE_WL, 0,
EGL_NONE
};
EGLImageKHR image = eglCreateImageKHR(m_backend->eglDisplay(), EGL_NO_CONTEXT, EGL_WAYLAND_BUFFER_WL,
(EGLClientBuffer)buffer->resource(), attribs);
if (image != EGL_NO_IMAGE_KHR) {
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
m_size = buffer->size();
updateMatrix();
q->setYInverted(yInverted);
}
return image;
}
bool AbstractEglTexture::updateFromFBO(const QSharedPointer<QOpenGLFramebufferObject> &fbo)
{
if (fbo.isNull()) {
return false;
}
m_texture = fbo->texture();
m_size = fbo->size();
q->setWrapMode(GL_CLAMP_TO_EDGE);
q->setFilter(GL_LINEAR);
q->setYInverted(false);
updateMatrix();
return true;
}
bool AbstractEglTexture::updateFromInternalImageObject(WindowPixmap *pixmap)
{
// FIXME: Share some code with the shm fallback in updateTexture().
const QImage image = pixmap->internalImage();
if (image.isNull()) {
return false;
}
if (m_size != image.size()) {
glDeleteTextures(1, &m_texture);
return loadInternalImageObject(pixmap);
}
const QRegion damage = pixmap->toplevel()->damage();
const qreal scale = image.devicePixelRatio();
q->bind();
// TODO: this should be shared with GLTexture::update
if (GLPlatform::instance()->isGLES()) {
if (s_supportsARGB32 && (image.format() == QImage::Format_ARGB32 || image.format() == QImage::Format_ARGB32_Premultiplied)) {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
for (const QRect &rect : damage) {
auto scaledRect = QRect(rect.x() * scale, rect.y() * scale, rect.width() * scale, rect.height() * scale);
glTexSubImage2D(m_target, 0, scaledRect.x(), scaledRect.y(), scaledRect.width(), scaledRect.height(),
GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.copy(scaledRect).bits());
}
} else {
const QImage im = image.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
for (const QRect &rect : damage) {
auto scaledRect = QRect(rect.x() * scale, rect.y() * scale, rect.width() * scale, rect.height() * scale);
glTexSubImage2D(m_target, 0, scaledRect.x(), scaledRect.y(), scaledRect.width(), scaledRect.height(),
GL_RGBA, GL_UNSIGNED_BYTE, im.copy(scaledRect).bits());
}
}
} else {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
for (const QRect &rect : damage) {
auto scaledRect = QRect(rect.x() * scale, rect.y() * scale, rect.width() * scale, rect.height() * scale);
glTexSubImage2D(m_target, 0, scaledRect.x(), scaledRect.y(), scaledRect.width(), scaledRect.height(),
GL_BGRA, GL_UNSIGNED_BYTE, im.copy(scaledRect).bits());
}
}
q->unbind();
return true;
}
}
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