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qt5base-lts/tests/auto/opengl/qglfunctions/tst_qglfunctions.cpp
Jason McDonald 5635823e17 Remove "All rights reserved" line from license headers. 
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>
2012-01-30 03:54:59 +01:00

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <QtOpenGL/qglfunctions.h>
class tst_QGLFunctions : public QObject
{
Q_OBJECT
public:
tst_QGLFunctions() {}
~tst_QGLFunctions() {}
private slots:
void features();
void multitexture();
void blendColor();
private:
static bool hasExtension(const char *name);
};
bool tst_QGLFunctions::hasExtension(const char *name)
{
QString extensions =
QString::fromLatin1
(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)));
return extensions.split(QLatin1Char(' ')).contains
(QString::fromLatin1(name));
}
// Check that the reported features are consistent with the platform.
void tst_QGLFunctions::features()
{
// Before being associated with a context, there should be
// no features enabled.
QGLFunctions funcs;
QVERIFY(!funcs.openGLFeatures());
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::Multitexture));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::Shaders));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::Buffers));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::Framebuffers));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::BlendColor));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::BlendEquation));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::BlendEquationSeparate));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::BlendFuncSeparate));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::BlendSubtract));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::CompressedTextures));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::Multisample));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::StencilSeparate));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::NPOTTextures));
// Make a context current.
QGLWidget glw;
if (!glw.isValid())
QSKIP("Could not create a GL context");
glw.makeCurrent();
funcs.initializeGLFunctions();
// Validate the features against what we expect for this platform.
#if defined(QT_OPENGL_ES_2)
QGLFunctions::OpenGLFeatures allFeatures =
(QGLFunctions::Multitexture |
QGLFunctions::Shaders |
QGLFunctions::Buffers |
QGLFunctions::Framebuffers |
QGLFunctions::BlendColor |
QGLFunctions::BlendEquation |
QGLFunctions::BlendEquationSeparate |
QGLFunctions::BlendFuncSeparate |
QGLFunctions::BlendSubtract |
QGLFunctions::CompressedTextures |
QGLFunctions::Multisample |
QGLFunctions::StencilSeparate |
QGLFunctions::NPOTTextures);
QVERIFY((funcs.openGLFeatures() & allFeatures) == allFeatures);
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Multitexture));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Shaders));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Buffers));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Framebuffers));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::BlendColor));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::BlendEquation));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::BlendEquationSeparate));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::BlendFuncSeparate));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::BlendSubtract));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::CompressedTextures));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Multisample));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::StencilSeparate));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::NPOTTextures));
#elif defined(QT_OPENGL_ES)
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Multitexture));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Buffers));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::CompressedTextures));
QVERIFY(funcs.hasOpenGLFeature(QGLFunctions::Multisample));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::Shaders));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::BlendColor));
QVERIFY(!funcs.hasOpenGLFeature(QGLFunctions::StencilSeparate));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::Framebuffers),
hasExtension("GL_OES_framebuffer_object"));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendEquationSeparate),
hasExtension("GL_OES_blend_equation_separate"));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendFuncSeparate),
hasExtension("GL_OES_blend_func_separate"));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendSubtract),
hasExtension("GL_OES_blend_subtract"));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::NPOTTextures),
hasExtension("GL_OES_texture_npot"));
#else
// We check for both the extension name and the minimum OpenGL version
// for the feature. This will help us catch situations where a platform
// doesn't list an extension by name but does have the feature by virtue
// of its version number.
QGLFormat::OpenGLVersionFlags versions = QGLFormat::openGLVersionFlags();
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::Multitexture),
hasExtension("GL_ARB_multitexture") ||
(versions & QGLFormat::OpenGL_Version_1_3) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::Shaders),
hasExtension("GL_ARB_shader_objects") ||
(versions & QGLFormat::OpenGL_Version_2_0) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::Buffers),
(versions & QGLFormat::OpenGL_Version_1_5) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::Framebuffers),
hasExtension("GL_EXT_framebuffer_object") ||
hasExtension("GL_ARB_framebuffer_object"));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendColor),
hasExtension("GL_EXT_blend_color") ||
(versions & QGLFormat::OpenGL_Version_1_2) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendEquation),
(versions & QGLFormat::OpenGL_Version_1_2) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendEquationSeparate),
hasExtension("GL_EXT_blend_equation_separate") ||
(versions & QGLFormat::OpenGL_Version_2_0) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendFuncSeparate),
hasExtension("GL_EXT_blend_func_separate") ||
(versions & QGLFormat::OpenGL_Version_1_4) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::BlendSubtract),
hasExtension("GL_EXT_blend_subtract"));
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::CompressedTextures),
hasExtension("GL_ARB_texture_compression") ||
(versions & QGLFormat::OpenGL_Version_1_3) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::Multisample),
hasExtension("GL_ARB_multisample") ||
(versions & QGLFormat::OpenGL_Version_1_3) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::StencilSeparate),
(versions & QGLFormat::OpenGL_Version_2_0) != 0);
QCOMPARE(funcs.hasOpenGLFeature(QGLFunctions::NPOTTextures),
hasExtension("GL_ARB_texture_non_power_of_two") ||
(versions & QGLFormat::OpenGL_Version_2_0) != 0);
#endif
}
// Verify that the multitexture functions appear to resolve and work.
void tst_QGLFunctions::multitexture()
{
QGLFunctions funcs;
QGLWidget glw;
if (!glw.isValid())
QSKIP("Could not create a GL context");
glw.makeCurrent();
funcs.initializeGLFunctions();
if (!funcs.hasOpenGLFeature(QGLFunctions::Multitexture))
QSKIP("Multitexture functions are not supported");
funcs.glActiveTexture(GL_TEXTURE1);
GLint active = 0;
glGetIntegerv(GL_ACTIVE_TEXTURE, &active);
QVERIFY(active == GL_TEXTURE1);
funcs.glActiveTexture(GL_TEXTURE0);
active = 0;
glGetIntegerv(GL_ACTIVE_TEXTURE, &active);
QVERIFY(active == GL_TEXTURE0);
}
// Verify that the glBlendColor() function appears to resolve and work.
void tst_QGLFunctions::blendColor()
{
QGLFunctions funcs;
QGLWidget glw;
if (!glw.isValid())
QSKIP("Could not create a GL context");
glw.makeCurrent();
funcs.initializeGLFunctions();
if (!funcs.hasOpenGLFeature(QGLFunctions::BlendColor))
QSKIP("glBlendColor() is not supported");
funcs.glBlendColor(0.0f, 1.0f, 0.0f, 1.0f);
GLfloat colors[4] = {0.5f, 0.5f, 0.5f, 0.5f};
glGetFloatv(GL_BLEND_COLOR, colors);
QCOMPARE(colors[0], 0.0f);
QCOMPARE(colors[1], 1.0f);
QCOMPARE(colors[2], 0.0f);
QCOMPARE(colors[3], 1.0f);
}
QTEST_MAIN(tst_QGLFunctions)
#include "tst_qglfunctions.moc"
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