diff options
Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_opengl_qglshaderprogram.cpp')
-rw-r--r-- | sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_opengl_qglshaderprogram.cpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_opengl_qglshaderprogram.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_opengl_qglshaderprogram.cpp new file mode 100644 index 000000000..2633705df --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_opengl_qglshaderprogram.cpp @@ -0,0 +1,103 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the documentation of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, 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 The Qt Company Ltd 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] +shader = QGLShader(QGLShader.Vertex) +shader.compileSourceCode(code) + +program = QGLShaderProgram(context) +program.addShader(shader) +program.link() + +program.bind() +//! [0] + +//! [1] +program.addShaderFromSourceCode(QGLShader.Vertex, + "attribute highp vec4 vertex\n" \ + "attribute mediump mat4 matrix\n" \ + "void main(void)\n" \ + "{\n" \ + " gl_Position = matrix * vertex\n" \ + "}") +program.addShaderFromSourceCode(QGLShader.Fragment, + "uniform mediump vec4 color\n" \ + "void main(void)\n" \ + "{\n" \ + " gl_FragColor = color\n" \ + "}") +program.link() +program.bind() + +vertexLocation = program.attributeLocation("vertex") +matrixLocation = program.attributeLocation("matrix") +colorLocation = program.uniformLocation("color") +//! [1] + +//! [2] +triangleVertices = ( + 60.0f, 10.0f, 0.0f, + 110.0f, 110.0f, 0.0f, + 10.0f, 110.0f, 0.0f) + +color = QColor(0, 255, 0, 255) + +pmvMatrix = QMatrix4x4() +pmvMatrix.ortho(self.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] |