diff options
author | Laszlo Agocs <laszlo.agocs@digia.com> | 2014-01-06 14:51:37 +0100 |
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committer | The Qt Project <gerrit-noreply@qt-project.org> | 2014-01-17 14:30:48 +0100 |
commit | 328f2f9c35f3cc5e7049a060a608c3f72876484a (patch) | |
tree | 984f0f52446b95da5d7240122dcfbec02b0933b5 /src/plugins/platforms/eglfs/qeglfscompositor.cpp | |
parent | 93154216ca7c7a46836716150fe70987d28d6f3c (diff) |
eglfs: Move reusable functionality to eglconvenience
The cursor implementation is generic GL(ES) code that should be shared
by all the present and future egl-based embedded platform
plugins. Follow the pattern of QEGLPlatformContext and move this class
into eglconvenience as QEGLPlatformCursor.
Similarly, the common bits from the context implementation context are
moved back to EGLPlatformContext.
eglconvenience has now base classes for integration, screen, window,
etc. too. By using these, eglfs becomes much smaller and cleaner. This
also paves the way for creating new, separate EGL-based platform
plugins for Android, embedded Linux, etc.
Also added some documentation to each of the base classes.
devicediscovery is now fixed to be usable on any platform. The
implementation in this case is naturally a dummy one. This finally
allows using it from anywhere without myriads of ugly ifdefs.
Change-Id: I02946e360c04e02de7fe234a23a08320eff4ccf5
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Diffstat (limited to 'src/plugins/platforms/eglfs/qeglfscompositor.cpp')
-rw-r--r-- | src/plugins/platforms/eglfs/qeglfscompositor.cpp | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/plugins/platforms/eglfs/qeglfscompositor.cpp b/src/plugins/platforms/eglfs/qeglfscompositor.cpp deleted file mode 100644 index 845bb5b3b5..0000000000 --- a/src/plugins/platforms/eglfs/qeglfscompositor.cpp +++ /dev/null @@ -1,203 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 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 "qeglfscompositor.h" -#include "qeglfswindow.h" -#include "qeglfscontext.h" - -#include <QtGui/QOpenGLContext> -#include <QtGui/QOpenGLShaderProgram> -#include <QtGui/QOpenGLFramebufferObject> - -QT_BEGIN_NAMESPACE - -static QEglFSCompositor *compositor = 0; - -QEglFSCompositor::QEglFSCompositor() - : m_screen(0), - m_program(0), - m_initialized(false) -{ - Q_ASSERT(!compositor); - m_updateTimer.setSingleShot(true); - m_updateTimer.setInterval(0); - connect(&m_updateTimer, SIGNAL(timeout()), SLOT(renderAll())); -} - -QEglFSCompositor::~QEglFSCompositor() -{ - Q_ASSERT(compositor == this); - delete m_program; - compositor = 0; -} - -void QEglFSCompositor::schedule(QEglFSScreen *screen) -{ - m_screen = screen; - if (!m_updateTimer.isActive()) - m_updateTimer.start(); -} - -void QEglFSCompositor::renderAll() -{ - QEglFSWindow *rootWin = m_screen->rootWindow(); - if (!rootWin) - return; - - Q_ASSERT(rootWin->hasNativeWindow()); - QOpenGLContext *context = m_screen->rootContext(); - Q_ASSERT(context); - - context->makeCurrent(rootWin->window()); - if (!m_initialized) { - initializeOpenGLFunctions(); - m_initialized = true; - } - ensureProgram(); - m_program->bind(); - - QList<QEglFSWindow *> windows = m_screen->windows(); - for (int i = 0; i < windows.size(); ++i) { - QEglFSWindow *window = windows.at(i); - uint texture = window->texture(); - if (texture) - render(window, texture, window->isRaster()); - } - - m_program->release(); - context->swapBuffers(rootWin->window()); -} - -void QEglFSCompositor::ensureProgram() -{ - if (!m_program) { - static const char *textureVertexProgram = - "attribute highp vec2 vertexCoordEntry;\n" - "attribute highp vec2 textureCoordEntry;\n" - "varying highp vec2 textureCoord;\n" - "void main() {\n" - " textureCoord = textureCoordEntry;\n" - " gl_Position = vec4(vertexCoordEntry, 0.0, 1.0);\n" - "}\n"; - - static const char *textureFragmentProgram = - "uniform sampler2D texture;\n" - "varying highp vec2 textureCoord;\n" - "uniform bool isRaster;\n" - "void main() {\n" - " lowp vec4 c = texture2D(texture, textureCoord);\n" - " gl_FragColor = isRaster ? c.bgra : c.rgba;\n" - "}\n"; - - m_program = new QOpenGLShaderProgram; - - m_program->addShaderFromSourceCode(QOpenGLShader::Vertex, textureVertexProgram); - m_program->addShaderFromSourceCode(QOpenGLShader::Fragment, textureFragmentProgram); - m_program->link(); - - m_vertexCoordEntry = m_program->attributeLocation("vertexCoordEntry"); - m_textureCoordEntry = m_program->attributeLocation("textureCoordEntry"); - m_isRasterEntry = m_program->uniformLocation("isRaster"); - } -} - -void QEglFSCompositor::render(QEglFSWindow *window, uint texture, bool raster) -{ - const GLfloat textureCoordinates[] = { - 0, 0, - 1, 0, - 1, 1, - 0, 1 - }; - - QRectF sr = window->screen()->geometry(); - QRect r = window->window()->geometry(); - QPoint tl = r.topLeft(); - QPoint br = r.bottomRight(); - - GLfloat x1 = (tl.x() / sr.width()) * 2 - 1; - GLfloat x2 = (br.x() / sr.width()) * 2 - 1; - GLfloat y1 = ((sr.height() - tl.y()) / sr.height()) * 2 - 1; - GLfloat y2 = ((sr.height() - br.y()) / sr.height()) * 2 - 1; - - if (!raster) - qSwap(y1, y2); - - const GLfloat vertexCoordinates[] = { - x1, y1, - x2, y1, - x2, y2, - x1, y2 - }; - - glViewport(0, 0, sr.width(), sr.height()); - - glEnableVertexAttribArray(m_vertexCoordEntry); - glEnableVertexAttribArray(m_textureCoordEntry); - - glVertexAttribPointer(m_vertexCoordEntry, 2, GL_FLOAT, GL_FALSE, 0, vertexCoordinates); - glVertexAttribPointer(m_textureCoordEntry, 2, GL_FLOAT, GL_FALSE, 0, textureCoordinates); - - glBindTexture(GL_TEXTURE_2D, texture); - - m_program->setUniformValue(m_isRasterEntry, raster); - - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - - glBindTexture(GL_TEXTURE_2D, 0); - glDisableVertexAttribArray(m_vertexCoordEntry); - glDisableVertexAttribArray(m_textureCoordEntry); -} - -QEglFSCompositor *QEglFSCompositor::instance() -{ - if (!compositor) - compositor = new QEglFSCompositor; - return compositor; -} - -void QEglFSCompositor::destroy() -{ - delete compositor; - compositor = 0; -} - -QT_END_NAMESPACE |