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Diffstat (limited to 'examples/opengl/hellogl_es/glwindow.cpp')
-rw-r--r-- | examples/opengl/hellogl_es/glwindow.cpp | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/examples/opengl/hellogl_es/glwindow.cpp b/examples/opengl/hellogl_es/glwindow.cpp deleted file mode 100644 index 38366ee785..0000000000 --- a/examples/opengl/hellogl_es/glwindow.cpp +++ /dev/null @@ -1,320 +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 examples 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 Digia Plc 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "glwindow.h" - -#include <QGuiApplication> -#include <QScreen> -#include <QTimer> - -#include <math.h> -#include <stdio.h> - -inline void CrossProduct(qreal &xOut, qreal &yOut, qreal &zOut, qreal x1, qreal y1, qreal z1, qreal x2, qreal y2, qreal z2) -{ - xOut = y1 * z2 - z1 * y2; - yOut = z1 * x2 - x1 * z2; - zOut = x1 * y2 - y1 * x2; -} - -inline void Normalize(qreal &x, qreal &y, qreal &z) -{ - qreal l = sqrt(x*x + y*y + z*z); - x = x / l; - y = y / l; - z = z / l; -} - -GLWindow::GLWindow() -{ - setSurfaceType(OpenGLSurface); - - qtLogo = true; - createdVertices = 0; - createdNormals = 0; - m_vertexNumber = 0; - frames = 0; - - m_fScale = 1; - - QSurfaceFormat format; - format.setDepthBufferSize(24); - format.setMajorVersion(1); - format.setMinorVersion(1); - - setGeometry(QGuiApplication::primaryScreen()->availableGeometry()); - setFormat(format); - create(); - - m_context = new QOpenGLContext; - m_context->setFormat(format); - m_context->create(); - - m_context->makeCurrent(this); - initializeGL(); - - QTimer *timer = new QTimer(this); - timer->setInterval(16); - connect(timer, SIGNAL(timeout()), this, SLOT(paintGL())); - timer->start(); -} - -GLWindow::~GLWindow() -{ - if (createdVertices) - delete[] createdVertices; - if (createdNormals) - delete[] createdNormals; - - delete m_context; -} - -void GLWindow::paintQtLogo() -{ - glDisable(GL_TEXTURE_2D); - glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(3,GL_FLOAT,0, createdVertices); - glEnableClientState(GL_NORMAL_ARRAY); - glNormalPointer(GL_FLOAT,0,createdNormals); - glDrawArrays(GL_TRIANGLES, 0, m_vertexNumber / 3); -} - -void GLWindow::initializeGL () -{ - glClearColor(0.1f, 0.1f, 0.2f, 1.0f); - - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - - GLfloat aLightPosition[] = {0.0f,0.3f,1.0f,0.0f}; - - glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, aLightPosition); - m_fAngle = 0; - m_fScale = 1; - createGeometry(); -} - -void GLWindow::paintGL() -{ - m_context->makeCurrent(this); - - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadIdentity(); - - glMatrixMode(GL_MODELVIEW); - glPushMatrix(); - glMatrixMode(GL_TEXTURE); - glPushMatrix(); - - //Since OpenGL ES does not support glPush/PopAttrib(GL_ALL_ATTRIB_BITS) - //we have to take care of the states ourselves - - glClearColor(0.1f, 0.1f, 0.2f, 1.0f); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - glEnable(GL_TEXTURE_2D); - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - - glShadeModel(GL_FLAT); - glFrontFace(GL_CW); - glCullFace(GL_FRONT); - glEnable(GL_CULL_FACE); - glEnable(GL_DEPTH_TEST); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - - glRotatef(m_fAngle, 0.0f, 1.0f, 0.0f); - glRotatef(m_fAngle, 1.0f, 0.0f, 0.0f); - glRotatef(m_fAngle, 0.0f, 0.0f, 1.0f); - glScalef(m_fScale, m_fScale,m_fScale); - glTranslatef(0.0f,-0.2f,0.0f); - - GLfloat matDiff[] = {0.40f, 1.0f, 0.0f, 1.0f}; - glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matDiff); - - paintQtLogo(); - - glMatrixMode(GL_MODELVIEW); - glPopMatrix(); - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - glMatrixMode(GL_TEXTURE); - glPopMatrix(); - - glDisable(GL_LIGHTING); - glDisable(GL_LIGHT0); - - glDisable(GL_DEPTH_TEST); - glDisable(GL_CULL_FACE); - - m_context->swapBuffers(this); - - m_fAngle += 1.0f; -} - -void GLWindow::createGeometry() -{ - vertices.clear(); - normals.clear(); - - qreal x1 = +0.06f; - qreal y1 = -0.14f; - qreal x2 = +0.14f; - qreal y2 = -0.06f; - qreal x3 = +0.08f; - qreal y3 = +0.00f; - qreal x4 = +0.30f; - qreal y4 = +0.22f; - - quad(x1, y1, x2, y2, y2, x2, y1, x1); - quad(x3, y3, x4, y4, y4, x4, y3, x3); - - extrude(x1, y1, x2, y2); - extrude(x2, y2, y2, x2); - extrude(y2, x2, y1, x1); - extrude(y1, x1, x1, y1); - extrude(x3, y3, x4, y4); - extrude(x4, y4, y4, x4); - extrude(y4, x4, y3, x3); - - const qreal Pi = 3.14159f; - const int NumSectors = 100; - - for (int i = 0; i < NumSectors; ++i) { - qreal angle1 = (i * 2 * Pi) / NumSectors; - qreal x5 = 0.30 * sin(angle1); - qreal y5 = 0.30 * cos(angle1); - qreal x6 = 0.20 * sin(angle1); - qreal y6 = 0.20 * cos(angle1); - - qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors; - qreal x7 = 0.20 * sin(angle2); - qreal y7 = 0.20 * cos(angle2); - qreal x8 = 0.30 * sin(angle2); - qreal y8 = 0.30 * cos(angle2); - - quad(x5, y5, x6, y6, x7, y7, x8, y8); - - extrude(x6, y6, x7, y7); - extrude(x8, y8, x5, y5); - } - - m_vertexNumber = vertices.size(); - createdVertices = new GLfloat[m_vertexNumber]; - createdNormals = new GLfloat[m_vertexNumber]; - for (int i = 0;i < m_vertexNumber;i++) { - createdVertices[i] = vertices.at(i) * 2; - createdNormals[i] = normals.at(i); - } - vertices.clear(); - normals.clear(); -} - -void GLWindow::quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4) -{ - qreal nx, ny, nz; - - vertices << x1 << y1 << -0.05f; - vertices << x2 << y2 << -0.05f; - vertices << x4 << y4 << -0.05f; - - vertices << x3 << y3 << -0.05f; - vertices << x4 << y4 << -0.05f; - vertices << x2 << y2 << -0.05f; - - CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0, x4 - x1, y4 - y1, 0); - Normalize(nx, ny, nz); - - normals << nx << ny << nz; - normals << nx << ny << nz; - normals << nx << ny << nz; - - normals << nx << ny << nz; - normals << nx << ny << nz; - normals << nx << ny << nz; - - vertices << x4 << y4 << 0.05f; - vertices << x2 << y2 << 0.05f; - vertices << x1 << y1 << 0.05f; - - vertices << x2 << y2 << 0.05f; - vertices << x4 << y4 << 0.05f; - vertices << x3 << y3 << 0.05f; - - CrossProduct(nx, ny, nz, x2 - x4, y2 - y4, 0, x1 - x4, y1 - y4, 0); - Normalize(nx, ny, nz); - - normals << nx << ny << nz; - normals << nx << ny << nz; - normals << nx << ny << nz; - - normals << nx << ny << nz; - normals << nx << ny << nz; - normals << nx << ny << nz; -} - -void GLWindow::extrude(qreal x1, qreal y1, qreal x2, qreal y2) -{ - qreal nx, ny, nz; - - vertices << x1 << y1 << +0.05f; - vertices << x2 << y2 << +0.05f; - vertices << x1 << y1 << -0.05f; - - vertices << x2 << y2 << -0.05f; - vertices << x1 << y1 << -0.05f; - vertices << x2 << y2 << +0.05f; - - CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0.0f, 0.0f, 0.0f, -0.1f); - Normalize(nx, ny, nz); - - normals << nx << ny << nz; - normals << nx << ny << nz; - normals << nx << ny << nz; - - normals << nx << ny << nz; - normals << nx << ny << nz; - normals << nx << ny << nz; -} |