5635823e17
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
262 lines
8.1 KiB
C++
262 lines
8.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the QtOpenGL module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <QtOpenGL/qgl.h>
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#include <QtOpenGL/qglbuffer.h>
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class tst_QGLBuffer : public QObject
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{
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Q_OBJECT
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public:
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tst_QGLBuffer() {}
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~tst_QGLBuffer() {}
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private slots:
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void vertexBuffer_data();
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void vertexBuffer();
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void indexBuffer_data();
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void indexBuffer();
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void bufferSharing();
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private:
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void testBuffer(QGLBuffer::Type type);
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};
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void tst_QGLBuffer::vertexBuffer_data()
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{
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QTest::addColumn<int>("usagePattern");
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QTest::newRow("StreamDraw") << int(QGLBuffer::StreamDraw);
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QTest::newRow("StaticDraw") << int(QGLBuffer::StaticDraw);
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QTest::newRow("DynamicDraw") << int(QGLBuffer::DynamicDraw);
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}
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void tst_QGLBuffer::vertexBuffer()
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{
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testBuffer(QGLBuffer::VertexBuffer);
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}
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void tst_QGLBuffer::indexBuffer_data()
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{
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vertexBuffer_data();
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}
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void tst_QGLBuffer::indexBuffer()
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{
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testBuffer(QGLBuffer::IndexBuffer);
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}
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void tst_QGLBuffer::testBuffer(QGLBuffer::Type type)
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{
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QFETCH(int, usagePattern);
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QGLWidget w;
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w.makeCurrent();
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// Create the local object, but not the buffer in the server.
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QGLBuffer buffer(type);
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QVERIFY(buffer.usagePattern() == QGLBuffer::StaticDraw);
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buffer.setUsagePattern(QGLBuffer::UsagePattern(usagePattern));
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// Check the initial state.
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QVERIFY(buffer.type() == type);
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QVERIFY(!buffer.isCreated());
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QVERIFY(buffer.bufferId() == 0);
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QVERIFY(buffer.usagePattern() == QGLBuffer::UsagePattern(usagePattern));
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QCOMPARE(buffer.size(), -1);
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// Should not be able to bind it yet because it isn't created.
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QVERIFY(!buffer.bind());
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// Create the buffer - if this fails, then assume that the
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// GL implementation does not support buffers at all.
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if (!buffer.create())
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QSKIP("Buffers are not supported on this platform");
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// Should now have a buffer id.
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QVERIFY(buffer.bufferId() != 0);
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// Bind the buffer and upload some data.
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QVERIFY(buffer.bind());
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static GLfloat const data[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
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buffer.allocate(data, sizeof(data));
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// Check the buffer size.
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QCOMPARE(buffer.size(), int(sizeof(data)));
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// Map the buffer and read back its contents.
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bool haveMap = false;
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GLfloat *mapped = reinterpret_cast<GLfloat *>
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(buffer.map(QGLBuffer::ReadOnly));
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if (mapped) {
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for (int index = 0; index < 9; ++index)
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QCOMPARE(mapped[index], data[index]);
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buffer.unmap();
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haveMap = true;
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} else {
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qWarning("QGLBuffer::map() is not supported on this platform");
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}
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// Read back the buffer contents using read().
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bool haveRead = false;
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GLfloat readdata[9];
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if (buffer.read(0, readdata, sizeof(readdata))) {
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for (int index = 0; index < 9; ++index)
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QCOMPARE(readdata[index], data[index]);
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haveRead = true;
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} else {
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qWarning("QGLBuffer::read() is not supported on this platform");
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}
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// Write some different data to a specific location and check it.
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static GLfloat const diffdata[] = {11, 12, 13};
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buffer.write(sizeof(GLfloat) * 3, diffdata, sizeof(diffdata));
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if (haveMap) {
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mapped = reinterpret_cast<GLfloat *>(buffer.map(QGLBuffer::ReadOnly));
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QVERIFY(mapped != 0);
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for (int index = 0; index < 9; ++index) {
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if (index >= 3 && index <= 5)
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QCOMPARE(mapped[index], diffdata[index - 3]);
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else
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QCOMPARE(mapped[index], data[index]);
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}
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buffer.unmap();
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}
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if (haveRead) {
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QVERIFY(buffer.read(0, readdata, sizeof(readdata)));
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for (int index = 0; index < 9; ++index) {
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if (index >= 3 && index <= 5)
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QCOMPARE(readdata[index], diffdata[index - 3]);
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else
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QCOMPARE(readdata[index], data[index]);
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}
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}
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// Write to the buffer using the return value from map.
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if (haveMap) {
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mapped = reinterpret_cast<GLfloat *>(buffer.map(QGLBuffer::WriteOnly));
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QVERIFY(mapped != 0);
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mapped[6] = 14;
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buffer.unmap();
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mapped = reinterpret_cast<GLfloat *>(buffer.map(QGLBuffer::ReadOnly));
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QVERIFY(mapped != 0);
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static GLfloat const diff2data[] = {11, 12, 13, 14};
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for (int index = 0; index < 9; ++index) {
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if (index >= 3 && index <= 6)
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QCOMPARE(mapped[index], diff2data[index - 3]);
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else
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QCOMPARE(mapped[index], data[index]);
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}
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buffer.unmap();
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}
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// Resize the buffer.
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buffer.allocate(sizeof(GLfloat) * 20);
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QCOMPARE(buffer.size(), int(sizeof(GLfloat) * 20));
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buffer.allocate(0, sizeof(GLfloat) * 32);
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QCOMPARE(buffer.size(), int(sizeof(GLfloat) * 32));
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// Release the buffer.
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buffer.release();
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}
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void tst_QGLBuffer::bufferSharing()
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{
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QGLWidget *w1 = new QGLWidget();
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w1->makeCurrent();
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QGLWidget *w2 = new QGLWidget(0, w1);
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if (!w2->isSharing()) {
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delete w2;
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delete w1;
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QSKIP("Context sharing is not supported on this platform");
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}
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// Bind the buffer in the first context and write some data to it.
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QGLBuffer buffer(QGLBuffer::VertexBuffer);
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if (!buffer.create())
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QSKIP("Buffers are not supported on this platform");
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QVERIFY(buffer.isCreated());
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QVERIFY(buffer.bind());
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static GLfloat const data[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
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buffer.allocate(data, sizeof(data));
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QCOMPARE(buffer.size(), int(sizeof(data)));
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buffer.release();
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// Bind the buffer in the second context and read back the data.
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w2->makeCurrent();
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QVERIFY(buffer.bind());
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QCOMPARE(buffer.size(), int(sizeof(data)));
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GLfloat readdata[9];
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if (buffer.read(0, readdata, sizeof(readdata))) {
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for (int index = 0; index < 9; ++index)
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QCOMPARE(readdata[index], data[index]);
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}
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buffer.release();
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// Delete the first context.
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delete w1;
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// Make the second context current again because deleting the first
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// one will call doneCurrent() even though it wasn't current!
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w2->makeCurrent();
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// The buffer should still be valid in the second context.
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QVERIFY(buffer.bufferId() != 0);
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QVERIFY(buffer.isCreated());
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QVERIFY(buffer.bind());
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QCOMPARE(buffer.size(), int(sizeof(data)));
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buffer.release();
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// Delete the second context.
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delete w2;
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// The buffer should now be invalid.
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QVERIFY(buffer.bufferId() == 0);
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QVERIFY(!buffer.isCreated());
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}
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QTEST_MAIN(tst_QGLBuffer)
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#include "tst_qglbuffer.moc"
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