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authorJorgen Lind <jorgen.lind@digia.com>2013-11-20 16:19:46 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2013-12-27 15:32:28 +0100
commit83791e4c0104d8b87ad2f198f9c07407c45603e3 (patch)
tree1e648ce8598c363c06796cd7cb599e1ffd68d875 /src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
parent4e6e4783802c0a4483ab59a1bafbc2822eb5b725 (diff)
Move to new hardware structure for the platform plugins
Change-Id: I0d383e4cdd59c4e4eae5506c814f0c80ecbf58ae Reviewed-by: Andy Nichols <andy.nichols@digia.com>
Diffstat (limited to 'src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp')
-rw-r--r--src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp261
1 files changed, 261 insertions, 0 deletions
diff --git a/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp b/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
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+++ b/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandglcontext.h"
+
+#include "qwaylanddisplay.h"
+#include "qwaylandwindow.h"
+#include "qwaylandeglwindow.h"
+#include "qwaylanddecoration.h"
+
+#include <QDebug>
+#include <QtPlatformSupport/private/qeglconvenience_p.h>
+#include <QtGui/private/qopenglcontext_p.h>
+#include <QtGui/private/qopengltexturecache_p.h>
+
+#include <qpa/qplatformopenglcontext.h>
+#include <QtGui/QSurfaceFormat>
+#include <QtGui/QOpenGLShaderProgram>
+
+QT_BEGIN_NAMESPACE
+
+QWaylandGLContext::QWaylandGLContext(EGLDisplay eglDisplay, const QSurfaceFormat &format, QPlatformOpenGLContext *share)
+ : QPlatformOpenGLContext()
+ , m_eglDisplay(eglDisplay)
+ , m_config(q_configFromGLFormat(m_eglDisplay, format, true))
+ , m_format(q_glFormatFromConfig(m_eglDisplay, m_config))
+ , m_blitProgram(0)
+ , m_textureCache(0)
+ , mUseNativeDefaultFbo(false)
+{
+ m_shareEGLContext = share ? static_cast<QWaylandGLContext *>(share)->eglContext() : EGL_NO_CONTEXT;
+
+ switch (m_format.renderableType()) {
+ case QSurfaceFormat::OpenVG:
+ eglBindAPI(EGL_OPENVG_API);
+ break;
+#ifdef EGL_VERSION_1_4
+# if !defined(QT_OPENGL_ES_2)
+ case QSurfaceFormat::DefaultRenderableType:
+# endif
+ case QSurfaceFormat::OpenGL:
+ eglBindAPI(EGL_OPENGL_API);
+ break;
+#endif
+ case QSurfaceFormat::OpenGLES:
+ default:
+ eglBindAPI(EGL_OPENGL_ES_API);
+ break;
+ }
+
+ QVector<EGLint> eglContextAttrs;
+ eglContextAttrs.append(EGL_CONTEXT_CLIENT_VERSION);
+ eglContextAttrs.append(format.majorVersion() == 1 ? 1 : 2);
+ eglContextAttrs.append(EGL_NONE);
+
+ m_context = eglCreateContext(m_eglDisplay, m_config, m_shareEGLContext, eglContextAttrs.constData());
+
+ if (m_context == EGL_NO_CONTEXT) {
+ m_context = eglCreateContext(m_eglDisplay, m_config, EGL_NO_CONTEXT, eglContextAttrs.constData());
+ m_shareEGLContext = EGL_NO_CONTEXT;
+ }
+}
+
+QWaylandGLContext::~QWaylandGLContext()
+{
+ delete m_blitProgram;
+ delete m_textureCache;
+ eglDestroyContext(m_eglDisplay, m_context);
+}
+
+bool QWaylandGLContext::makeCurrent(QPlatformSurface *surface)
+{
+ QWaylandEglWindow *window = static_cast<QWaylandEglWindow *>(surface);
+
+ window->setCanResize(false);
+
+ EGLSurface eglSurface = window->eglSurface();
+ if (!eglMakeCurrent(m_eglDisplay, eglSurface, eglSurface, m_context)) {
+ qWarning("QEGLPlatformContext::makeCurrent: eglError: %x, this: %p \n", eglGetError(), this);
+ return false;
+ }
+
+ window->bindContentFBO();
+
+ return true;
+}
+
+void QWaylandGLContext::doneCurrent()
+{
+ eglMakeCurrent(m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+}
+
+void QWaylandGLContext::swapBuffers(QPlatformSurface *surface)
+{
+ QWaylandEglWindow *window = static_cast<QWaylandEglWindow *>(surface);
+
+ EGLSurface eglSurface = window->eglSurface();
+
+ if (window->decoration()) {
+ makeCurrent(surface);
+ if (!m_blitProgram) {
+ initializeOpenGLFunctions();
+ m_blitProgram = new QOpenGLShaderProgram();
+ m_blitProgram->addShaderFromSourceCode(QOpenGLShader::Vertex, "attribute vec4 position;\n\
+ attribute vec4 texCoords;\n\
+ varying vec2 outTexCoords;\n\
+ void main()\n\
+ {\n\
+ gl_Position = position;\n\
+ outTexCoords = texCoords.xy;\n\
+ }");
+ m_blitProgram->addShaderFromSourceCode(QOpenGLShader::Fragment, "varying highp vec2 outTexCoords;\n\
+ uniform sampler2D texture;\n\
+ void main()\n\
+ {\n\
+ gl_FragColor = texture2D(texture, outTexCoords);\n\
+ }");
+
+ if (!m_blitProgram->link()) {
+ qDebug() << "Shader Program link failed.";
+ qDebug() << m_blitProgram->log();
+ }
+ }
+
+ if (!m_textureCache) {
+ m_textureCache = new QOpenGLTextureCache(this->context());
+ }
+
+ QRect windowRect = window->window()->frameGeometry();
+ glViewport(0, 0, windowRect.width(), windowRect.height());
+
+ glDisable(GL_DEPTH_TEST);
+ glDisable(GL_BLEND);
+ mUseNativeDefaultFbo = true;
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ mUseNativeDefaultFbo = false;
+
+ static const GLfloat squareVertices[] = {
+ -1.f, -1.f,
+ 1.0f, -1.f,
+ -1.f, 1.0f,
+ 1.0f, 1.0f
+ };
+
+ static const GLfloat inverseSquareVertices[] = {
+ -1.f, 1.f,
+ 1.f, 1.f,
+ -1.f, -1.f,
+ 1.f, -1.f
+ };
+
+ static const GLfloat textureVertices[] = {
+ 0.0f, 0.0f,
+ 1.0f, 0.0f,
+ 0.0f, 1.0f,
+ 1.0f, 1.0f,
+ };
+
+ m_blitProgram->bind();
+
+ m_blitProgram->setUniformValue("texture", 0);
+
+ m_blitProgram->enableAttributeArray("position");
+ m_blitProgram->enableAttributeArray("texCoords");
+ m_blitProgram->setAttributeArray("texCoords", textureVertices, 2);
+
+ glActiveTexture(GL_TEXTURE0);
+
+ //Draw Decoration
+ m_blitProgram->setAttributeArray("position", inverseSquareVertices, 2);
+ QImage decorationImage = window->decoration()->contentImage();
+ m_textureCache->bindTexture(context(), decorationImage);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+ //Draw Content
+ m_blitProgram->setAttributeArray("position", squareVertices, 2);
+ glBindTexture(GL_TEXTURE_2D, window->contentTexture());
+ QRect r = window->contentsRect();
+ glViewport(r.x(), r.y(), r.width(), r.height());
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+ //Cleanup
+ m_blitProgram->disableAttributeArray("position");
+ m_blitProgram->disableAttributeArray("texCoords");
+ m_blitProgram->release();
+ }
+
+ eglSwapBuffers(m_eglDisplay, eglSurface);
+
+ window->setCanResize(true);
+}
+
+GLuint QWaylandGLContext::defaultFramebufferObject(QPlatformSurface *surface) const
+{
+ if (mUseNativeDefaultFbo)
+ return 0;
+
+ return static_cast<QWaylandEglWindow *>(surface)->contentFBO();
+}
+
+bool QWaylandGLContext::isSharing() const
+{
+ return m_shareEGLContext != EGL_NO_CONTEXT;
+}
+
+bool QWaylandGLContext::isValid() const
+{
+ return m_context != EGL_NO_CONTEXT;
+}
+
+void (*QWaylandGLContext::getProcAddress(const QByteArray &procName)) ()
+{
+ return eglGetProcAddress(procName.constData());
+}
+
+EGLConfig QWaylandGLContext::eglConfig() const
+{
+ return m_config;
+}
+
+QT_END_NAMESPACE