Port boxes demo to use math3d throughout

Patch originally by Ian Walters.

1 files changed, 38 insertions, 42 deletions

diff --git a/demos/boxes/scene.cpp b/demos/boxes/scene.cpp
index cd9671e..db32928 100644
--- a/demos/boxes/scene.cpp
+++ b/demos/boxes/scene.cpp
@@ -39,7 +39,10 @@
 **
 ****************************************************************************/
 
+#include <QDebug>
 #include "scene.h"
+#include <QtGui/qmatrix4x4.h>
+#include <QtGui/qvector3d.h>
 
 #include "3rdparty/fbm.h"
 
@@ -484,9 +487,9 @@ Scene::Scene(int width, int height, int maxTextureSize)
 {
     setSceneRect(0, 0, width, height);
 
-    m_trackBalls[0] = TrackBall(0.0005f, gfx::Vector3f::vector(0, 1, 0), TrackBall::Sphere);
-    m_trackBalls[1] = TrackBall(0.0001f, gfx::Vector3f::vector(0, 0, 1), TrackBall::Sphere);
-    m_trackBalls[2] = TrackBall(0.0f, gfx::Vector3f::vector(0, 1, 0), TrackBall::Plane);
+    m_trackBalls[0] = TrackBall(0.05f, QVector3D(0, 1, 0), TrackBall::Sphere);
+    m_trackBalls[1] = TrackBall(0.005f, QVector3D(0, 0, 1), TrackBall::Sphere);
+    m_trackBalls[2] = TrackBall(0.0f, QVector3D(0, 1, 0), TrackBall::Plane);
 
     m_renderOptions = new RenderOptionsDialog;
     m_renderOptions->move(20, 120);
@@ -648,9 +651,9 @@ void Scene::initGL()
 
 // If one of the boxes should not be rendered, set excludeBox to its index.
 // If the main box should not be rendered, set excludeBox to -1.
-void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
+void Scene::renderBoxes(const QMatrix4x4 &view, int excludeBox)
 {
-    gfx::Matrix4x4f invView = view.inverse();
+    QMatrix4x4 invView = view.inverted();
 
     // If multi-texturing is supported, use three saplers.
     if (glActiveTexture) {
@@ -666,11 +669,11 @@ void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
     glDisable(GL_LIGHTING);
     glDisable(GL_CULL_FACE);
 
-    gfx::Matrix4x4f viewRotation(view);
+    QMatrix4x4 viewRotation(view);
     viewRotation(3, 0) = viewRotation(3, 1) = viewRotation(3, 2) = 0.0f;
     viewRotation(0, 3) = viewRotation(1, 3) = viewRotation(2, 3) = 0.0f;
     viewRotation(3, 3) = 1.0f;
-    glLoadMatrixf(viewRotation.bits());
+    glLoadMatrixf(viewRotation.data());
     glScalef(20.0f, 20.0f, 20.0f);
 
     // Don't render the environment if the environment texture can't be set for the correct sampler.
@@ -685,7 +688,7 @@ void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
         m_environment->unbind();
     }
 
-    glLoadMatrixf(view.bits());
+    glLoadMatrixf(view.data());
 
     glEnable(GL_CULL_FACE);
     glEnable(GL_LIGHTING);
@@ -695,9 +698,11 @@ void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
             continue;
 
         glPushMatrix();
-        gfx::Matrix4x4f m;
-        m_trackBalls[1].rotation().matrix(m);
-        glMultMatrixf(m.bits());
+        QMatrix4x4 m;
+        m.rotate(m_trackBalls[1].rotation());
+        m = m.transposed();
+
+        glMultMatrixf(m.data());
 
         glRotatef(360.0f * i / m_programs.size(), 0.0f, 0.0f, 1.0f);
         glTranslatef(2.0f, 0.0f, 0.0f);
@@ -713,12 +718,8 @@ void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
         m_programs[i]->setUniformValue("tex", 0);
         m_programs[i]->setUniformValue("env", 1);
         m_programs[i]->setUniformValue("noise", 2);
-        QMatrix4x4 mview;
-        QMatrix4x4 minvview;
-        memcpy(mview.data(), view.bits(), sizeof(float) * 16);
-        memcpy(minvview.data(), invView.bits(), sizeof(float) * 16);
-        m_programs[i]->setUniformValue("view", mview);
-        m_programs[i]->setUniformValue("invView", minvview);
+        m_programs[i]->setUniformValue("view", view);
+        m_programs[i]->setUniformValue("invView", invView);
         m_box->draw();
         m_programs[i]->disable();
 
@@ -732,9 +733,10 @@ void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
     }
 
     if (-1 != excludeBox) {
-        gfx::Matrix4x4f m;
-        m_trackBalls[0].rotation().matrix(m);
-        glMultMatrixf(m.bits());
+        QMatrix4x4 m;
+        m.rotate(m_trackBalls[0].rotation());
+        m = m.transposed();
+        glMultMatrixf(m.data());
 
         if (glActiveTexture) {
             if (m_dynamicCubemap)
@@ -747,12 +749,8 @@ void Scene::renderBoxes(const gfx::Matrix4x4f &view, int excludeBox)
         m_programs[m_currentShader]->setUniformValue("tex", 0);
         m_programs[m_currentShader]->setUniformValue("env", 1);
         m_programs[m_currentShader]->setUniformValue("noise", 2);
-        QMatrix4x4 mview;
-        QMatrix4x4 minvview;
-        memcpy(mview.data(), view.bits(), sizeof(float) * 16);
-        memcpy(minvview.data(), invView.bits(), sizeof(float) * 16);
-        m_programs[m_currentShader]->setUniformValue("view", mview);
-        m_programs[m_currentShader]->setUniformValue("invView", minvview);
+        m_programs[m_currentShader]->setUniformValue("view", view);
+        m_programs[m_currentShader]->setUniformValue("invView", invView);
         m_box->draw();
         m_programs[m_currentShader]->disable();
 
@@ -839,31 +837,32 @@ void Scene::renderCubemaps()
     // To speed things up, only update the cubemaps for the small cubes every N frames.
     const int N = (m_updateAllCubemaps ? 1 : 3);
 
-    gfx::Matrix4x4f mat;
+    QMatrix4x4 mat;
     GLRenderTargetCube::getProjectionMatrix(mat, 0.1f, 100.0f);
 
     glMatrixMode(GL_PROJECTION);
     glPushMatrix();
-    glLoadMatrixf(mat.bits());
+    glLoadMatrixf(mat.data());
 
     glMatrixMode(GL_MODELVIEW);
     glPushMatrix();
 
-    gfx::Vector3f center;
+    QVector3D center;
 
     for (int i = m_frame % N; i < m_cubemaps.size(); i += N) {
         if (0 == m_cubemaps[i])
             continue;
 
         float angle = 2.0f * PI * i / m_cubemaps.size();
-        center = m_trackBalls[1].rotation().transform(gfx::Vector3f::vector(cos(angle), sin(angle), 0));
+
+        center = m_trackBalls[1].rotation().rotateVector(QVector3D(cos(angle), sin(angle), 0.0f));
 
         for (int face = 0; face < 6; ++face) {
             m_cubemaps[i]->begin(face);
 
             GLRenderTargetCube::getViewMatrix(mat, face);
-            gfx::Vector4f v = gfx::Vector4f::vector(-center[0], -center[1], -center[2], 1.0);
-            mat[3] = v * mat;
+            QVector4D v = QVector4D(-center.x(), -center.y(), -center.z(), 1.0);
+            mat.setColumn(3, v * mat);
 
             glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
             renderBoxes(mat, i);
@@ -907,12 +906,9 @@ void Scene::drawBackground(QPainter *painter, const QRectF &)
 
     glMatrixMode(GL_MODELVIEW);
 
-    //gfx::Matrix4x4f view = gfx::Matrix4x4f::identity();
-    //view(3, 2) -= 2.0f * exp(m_distExp / 1200.0f);
-
-    gfx::Matrix4x4f view;
-    m_trackBalls[2].rotation().matrix(view);
-    view(3, 2) -= 2.0f * exp(m_distExp / 1200.0f);
+    QMatrix4x4 view;
+    view.rotate(m_trackBalls[2].rotation());
+    view(2, 3) -= 2.0f * exp(m_distExp / 1200.0f);
     renderBoxes(view);
 
     defaultStates();
@@ -946,10 +942,10 @@ void Scene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
     }
 
     if (event->buttons() & Qt::MidButton) {
-        m_trackBalls[2].move(pixelPosToViewPos(event->scenePos()), gfx::Quaternionf::identity());
+        m_trackBalls[2].move(pixelPosToViewPos(event->scenePos()), QQuaternion());
         event->accept();
     } else {
-        m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), gfx::Quaternionf::identity());
+        m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), QQuaternion());
     }
 }
 
@@ -970,7 +966,7 @@ void Scene::mousePressEvent(QGraphicsSceneMouseEvent *event)
     }
 
     if (event->buttons() & Qt::MidButton) {
-        m_trackBalls[2].push(pixelPosToViewPos(event->scenePos()), gfx::Quaternionf::identity());
+        m_trackBalls[2].push(pixelPosToViewPos(event->scenePos()), QQuaternion());
         event->accept();
     }
 }
@@ -992,7 +988,7 @@ void Scene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     }
 
     if (event->button() == Qt::MidButton) {
-        m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), gfx::Quaternionf::identity());
+        m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), QQuaternion());
         event->accept();
     }
 }