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-rw-r--r--doc/src/snippets/code/src_gui_qopenglshaderprogram.cpp94
1 files changed, 94 insertions, 0 deletions
diff --git a/doc/src/snippets/code/src_gui_qopenglshaderprogram.cpp b/doc/src/snippets/code/src_gui_qopenglshaderprogram.cpp
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index 0000000000..e3b537a9c2
--- /dev/null
+++ b/doc/src/snippets/code/src_gui_qopenglshaderprogram.cpp
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+QOpenGLShader shader(QOpenGLShader::Vertex);
+shader.compileSourceCode(code);
+
+QOpenGLShaderProgram program(context);
+program.addShader(shader);
+program.link();
+
+program.bind();
+//! [0]
+
+//! [1]
+program.addShaderFromSourceCode(QOpenGLShader::Vertex,
+ "attribute highp vec4 vertex;\n"
+ "uniform highp mat4 matrix;\n"
+ "void main(void)\n"
+ "{\n"
+ " gl_Position = matrix * vertex;\n"
+ "}");
+program.addShaderFromSourceCode(QOpenGLShader::Fragment,
+ "uniform mediump vec4 color;\n"
+ "void main(void)\n"
+ "{\n"
+ " gl_FragColor = color;\n"
+ "}");
+program.link();
+program.bind();
+
+int vertexLocation = program.attributeLocation("vertex");
+int matrixLocation = program.uniformLocation("matrix");
+int colorLocation = program.uniformLocation("color");
+//! [1]
+
+//! [2]
+static GLfloat const triangleVertices[] = {
+ 60.0f, 10.0f, 0.0f,
+ 110.0f, 110.0f, 0.0f,
+ 10.0f, 110.0f, 0.0f
+};
+
+QColor color(0, 255, 0, 255);
+
+QMatrix4x4 pmvMatrix;
+pmvMatrix.ortho(rect());
+
+program.enableAttributeArray(vertexLocation);
+program.setAttributeArray(vertexLocation, triangleVertices, 3);
+program.setUniformValue(matrixLocation, pmvMatrix);
+program.setUniformValue(colorLocation, color);
+
+glDrawArrays(GL_TRIANGLES, 0, 3);
+
+program.disableAttributeArray(vertexLocation);
+//! [2]