2015-03-19 16:46:39 +03:00
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/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "abstract_egl_backend.h"
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#include "options.h"
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#include "wayland_server.h"
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#include <KWayland/Server/buffer_interface.h>
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#include <KWayland/Server/display.h>
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// kwin libs
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#include <kwinglplatform.h>
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// Qt
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#include <QOpenGLContext>
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2015-08-18 15:40:26 +03:00
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#include <QOpenGLFramebufferObject>
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2015-03-19 16:46:39 +03:00
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namespace KWin
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{
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typedef GLboolean(*eglBindWaylandDisplayWL_func)(EGLDisplay dpy, wl_display *display);
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typedef GLboolean(*eglUnbindWaylandDisplayWL_func)(EGLDisplay dpy, wl_display *display);
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typedef GLboolean(*eglQueryWaylandBufferWL_func)(EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
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eglBindWaylandDisplayWL_func eglBindWaylandDisplayWL = nullptr;
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eglUnbindWaylandDisplayWL_func eglUnbindWaylandDisplayWL = nullptr;
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eglQueryWaylandBufferWL_func eglQueryWaylandBufferWL = nullptr;
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#ifndef EGL_WAYLAND_BUFFER_WL
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#define EGL_WAYLAND_BUFFER_WL 0x31D5
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#endif
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#ifndef EGL_WAYLAND_PLANE_WL
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#define EGL_WAYLAND_PLANE_WL 0x31D6
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#endif
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#ifndef EGL_WAYLAND_Y_INVERTED_WL
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#define EGL_WAYLAND_Y_INVERTED_WL 0x31DB
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#endif
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AbstractEglBackend::AbstractEglBackend()
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: OpenGLBackend()
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{
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}
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AbstractEglBackend::~AbstractEglBackend() = default;
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void AbstractEglBackend::cleanup()
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{
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if (eglUnbindWaylandDisplayWL && eglDisplay() != EGL_NO_DISPLAY) {
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eglUnbindWaylandDisplayWL(eglDisplay(), *(WaylandServer::self()->display()));
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}
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cleanupGL();
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doneCurrent();
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eglDestroyContext(m_display, m_context);
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2015-04-17 16:48:55 +03:00
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cleanupSurfaces();
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2015-03-19 16:46:39 +03:00
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eglTerminate(m_display);
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eglReleaseThread();
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}
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2015-04-17 16:48:55 +03:00
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void AbstractEglBackend::cleanupSurfaces()
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{
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if (m_surface != EGL_NO_SURFACE) {
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eglDestroySurface(m_display, m_surface);
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}
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}
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2015-03-19 16:46:39 +03:00
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bool AbstractEglBackend::initEglAPI()
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{
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EGLint major, minor;
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if (eglInitialize(m_display, &major, &minor) == EGL_FALSE) {
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return false;
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}
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EGLint error = eglGetError();
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if (error != EGL_SUCCESS) {
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qCWarning(KWIN_CORE) << "Error during eglInitialize " << error;
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return false;
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}
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qCDebug(KWIN_CORE) << "Egl Initialize succeeded";
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2015-10-30 14:56:03 +03:00
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if (eglBindAPI(isOpenGLES() ? EGL_OPENGL_ES_API : EGL_OPENGL_API) == EGL_FALSE) {
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2015-03-19 16:46:39 +03:00
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qCCritical(KWIN_CORE) << "bind OpenGL API failed";
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return false;
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}
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qCDebug(KWIN_CORE) << "EGL version: " << major << "." << minor;
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return true;
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}
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void AbstractEglBackend::initKWinGL()
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{
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initEGL();
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GLPlatform *glPlatform = GLPlatform::instance();
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glPlatform->detect(EglPlatformInterface);
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if (GLPlatform::instance()->driver() == Driver_Intel)
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options->setUnredirectFullscreen(false); // bug #252817
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options->setGlPreferBufferSwap(options->glPreferBufferSwap()); // resolve autosetting
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if (options->glPreferBufferSwap() == Options::AutoSwapStrategy)
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options->setGlPreferBufferSwap('e'); // for unknown drivers - should not happen
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glPlatform->printResults();
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initGL(EglPlatformInterface);
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}
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void AbstractEglBackend::initBufferAge()
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{
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setSupportsBufferAge(false);
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if (hasGLExtension(QByteArrayLiteral("EGL_EXT_buffer_age"))) {
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const QByteArray useBufferAge = qgetenv("KWIN_USE_BUFFER_AGE");
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if (useBufferAge != "0")
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setSupportsBufferAge(true);
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}
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}
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void AbstractEglBackend::initWayland()
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{
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if (!WaylandServer::self()) {
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return;
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}
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if (hasGLExtension(QByteArrayLiteral("EGL_WL_bind_wayland_display"))) {
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eglBindWaylandDisplayWL = (eglBindWaylandDisplayWL_func)eglGetProcAddress("eglBindWaylandDisplayWL");
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eglUnbindWaylandDisplayWL = (eglUnbindWaylandDisplayWL_func)eglGetProcAddress("eglUnbindWaylandDisplayWL");
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eglQueryWaylandBufferWL = (eglQueryWaylandBufferWL_func)eglGetProcAddress("eglQueryWaylandBufferWL");
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if (!eglBindWaylandDisplayWL(eglDisplay(), *(WaylandServer::self()->display()))) {
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eglUnbindWaylandDisplayWL = nullptr;
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eglQueryWaylandBufferWL = nullptr;
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2015-03-03 12:18:51 +03:00
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} else {
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waylandServer()->display()->setEglDisplay(eglDisplay());
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2015-03-19 16:46:39 +03:00
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}
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}
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}
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void AbstractEglBackend::initClientExtensions()
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{
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// Get the list of client extensions
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const char* clientExtensionsCString = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
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const QByteArray clientExtensionsString = QByteArray::fromRawData(clientExtensionsCString, qstrlen(clientExtensionsCString));
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if (clientExtensionsString.isEmpty()) {
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// If eglQueryString() returned NULL, the implementation doesn't support
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// EGL_EXT_client_extensions. Expect an EGL_BAD_DISPLAY error.
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(void) eglGetError();
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}
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m_clientExtensions = clientExtensionsString.split(' ');
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}
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bool AbstractEglBackend::hasClientExtension(const QByteArray &ext) const
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{
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return m_clientExtensions.contains(ext);
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}
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bool AbstractEglBackend::makeCurrent()
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{
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if (QOpenGLContext *context = QOpenGLContext::currentContext()) {
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// Workaround to tell Qt that no QOpenGLContext is current
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context->doneCurrent();
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}
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const bool current = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
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return current;
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}
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void AbstractEglBackend::doneCurrent()
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{
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eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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}
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2015-10-30 14:56:03 +03:00
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bool AbstractEglBackend::isOpenGLES() const
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{
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2015-11-02 15:54:53 +03:00
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if (qstrcmp(qgetenv("KWIN_COMPOSE"), "O2ES") == 0) {
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return true;
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}
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2015-10-30 14:56:03 +03:00
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return QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES;
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}
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2015-03-19 16:46:39 +03:00
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AbstractEglTexture::AbstractEglTexture(SceneOpenGL::Texture *texture, AbstractEglBackend *backend)
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: SceneOpenGL::TexturePrivate()
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, q(texture)
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, m_backend(backend)
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2015-10-09 13:26:17 +03:00
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, m_image(EGL_NO_IMAGE_KHR)
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2015-03-19 16:46:39 +03:00
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{
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m_target = GL_TEXTURE_2D;
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}
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AbstractEglTexture::~AbstractEglTexture()
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{
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if (m_image != EGL_NO_IMAGE_KHR) {
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eglDestroyImageKHR(m_backend->eglDisplay(), m_image);
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}
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}
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OpenGLBackend *AbstractEglTexture::backend()
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{
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return m_backend;
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}
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bool AbstractEglTexture::loadTexture(WindowPixmap *pixmap)
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{
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const auto &buffer = pixmap->buffer();
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if (buffer.isNull()) {
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2015-08-18 15:40:26 +03:00
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if (updateFromFBO(pixmap->fbo())) {
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return true;
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}
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2015-03-19 16:46:39 +03:00
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// try X11 loading
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return loadTexture(pixmap->pixmap(), pixmap->toplevel()->size());
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}
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// try Wayland loading
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if (buffer->shmBuffer()) {
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return loadShmTexture(buffer);
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} else {
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return loadEglTexture(buffer);
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}
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}
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bool AbstractEglTexture::loadTexture(xcb_pixmap_t pix, const QSize &size)
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{
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if (pix == XCB_NONE)
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return false;
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glGenTextures(1, &m_texture);
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q->setWrapMode(GL_CLAMP_TO_EDGE);
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q->setFilter(GL_LINEAR);
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q->bind();
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const EGLint attribs[] = {
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EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
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EGL_NONE
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};
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m_image = eglCreateImageKHR(m_backend->eglDisplay(), EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR,
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(EGLClientBuffer)pix, attribs);
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if (EGL_NO_IMAGE_KHR == m_image) {
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qCDebug(KWIN_CORE) << "failed to create egl image";
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q->unbind();
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q->discard();
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return false;
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}
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glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)m_image);
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q->unbind();
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q->setYInverted(true);
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m_size = size;
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updateMatrix();
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return true;
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}
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void AbstractEglTexture::updateTexture(WindowPixmap *pixmap)
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{
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const auto &buffer = pixmap->buffer();
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if (buffer.isNull()) {
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2015-08-18 15:40:26 +03:00
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const auto &fbo = pixmap->fbo();
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if (!fbo.isNull()) {
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if (m_texture != fbo->texture()) {
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updateFromFBO(fbo);
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}
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return;
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}
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2015-03-19 16:46:39 +03:00
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return;
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}
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if (!buffer->shmBuffer()) {
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q->bind();
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EGLImageKHR image = attach(buffer);
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q->unbind();
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if (image != EGL_NO_IMAGE_KHR) {
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eglDestroyImageKHR(m_backend->eglDisplay(), m_image);
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m_image = image;
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}
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return;
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}
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// shm fallback
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const QImage &image = buffer->data();
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if (image.isNull()) {
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return;
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}
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Q_ASSERT(image.size() == m_size);
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q->bind();
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const QRegion &damage = pixmap->toplevel()->damage();
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// TODO: this should be shared with GLTexture::update
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2015-05-11 12:11:16 +03:00
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if (GLPlatform::instance()->isGLES()) {
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if (s_supportsARGB32 && (image.format() == QImage::Format_ARGB32 || image.format() == QImage::Format_ARGB32_Premultiplied)) {
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const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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for (const QRect &rect : damage.rects()) {
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glTexSubImage2D(m_target, 0, rect.x(), rect.y(), rect.width(), rect.height(),
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GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.copy(rect).bits());
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}
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} else {
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const QImage im = image.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
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for (const QRect &rect : damage.rects()) {
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glTexSubImage2D(m_target, 0, rect.x(), rect.y(), rect.width(), rect.height(),
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GL_RGBA, GL_UNSIGNED_BYTE, im.copy(rect).bits());
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}
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}
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} else {
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const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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for (const QRect &rect : damage.rects()) {
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glTexSubImage2D(m_target, 0, rect.x(), rect.y(), rect.width(), rect.height(),
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GL_BGRA, GL_UNSIGNED_BYTE, im.copy(rect).bits());
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}
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2015-03-19 16:46:39 +03:00
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}
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q->unbind();
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}
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bool AbstractEglTexture::loadShmTexture(const QPointer< KWayland::Server::BufferInterface > &buffer)
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{
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const QImage &image = buffer->data();
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if (image.isNull()) {
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return false;
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}
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glGenTextures(1, &m_texture);
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q->setWrapMode(GL_CLAMP_TO_EDGE);
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q->setFilter(GL_LINEAR);
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q->bind();
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const QSize &size = image.size();
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// TODO: this should be shared with GLTexture(const QImage&, GLenum)
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GLenum format = 0;
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switch (image.format()) {
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case QImage::Format_ARGB32:
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case QImage::Format_ARGB32_Premultiplied:
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format = GL_RGBA8;
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break;
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case QImage::Format_RGB32:
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format = GL_RGB8;
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break;
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default:
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return false;
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}
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2015-05-11 12:11:16 +03:00
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if (GLPlatform::instance()->isGLES()) {
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if (s_supportsARGB32 && format == GL_RGBA8) {
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const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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glTexImage2D(m_target, 0, GL_BGRA_EXT, im.width(), im.height(),
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0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.bits());
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|
|
} 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());
|
|
|
|
}
|
2015-03-19 16:46:39 +03:00
|
|
|
|
|
|
|
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_CORE) << "failed to create egl image";
|
|
|
|
q->discard();
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
EGLImageKHR AbstractEglTexture::attach(const QPointer< KWayland::Server::BufferInterface > &buffer)
|
|
|
|
{
|
2015-03-03 12:18:51 +03:00
|
|
|
EGLint format, yInverted;
|
2015-03-19 16:46:39 +03:00
|
|
|
eglQueryWaylandBufferWL(m_backend->eglDisplay(), buffer->resource(), EGL_TEXTURE_FORMAT, &format);
|
|
|
|
if (format != EGL_TEXTURE_RGB && format != EGL_TEXTURE_RGBA) {
|
|
|
|
qCDebug(KWIN_CORE) << "Unsupported texture format: " << format;
|
|
|
|
return EGL_NO_IMAGE_KHR;
|
|
|
|
}
|
2015-05-21 16:49:46 +03:00
|
|
|
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;
|
|
|
|
}
|
2015-03-19 16:46:39 +03:00
|
|
|
|
|
|
|
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);
|
2015-03-03 12:18:51 +03:00
|
|
|
m_size = buffer->size();
|
2015-03-19 16:46:39 +03:00
|
|
|
updateMatrix();
|
|
|
|
q->setYInverted(yInverted);
|
|
|
|
}
|
|
|
|
return image;
|
|
|
|
}
|
|
|
|
|
2015-08-18 15:40:26 +03:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2015-03-19 16:46:39 +03:00
|
|
|
}
|
|
|
|
|