Add texture stress test

examples/tests/textureStress.fs

@@ -0,0 +1,41 @@
+float aspect(vec2 v) {
+    return v.x / v.y;
+}
+
+vec3 aspectCorrectedTexture() {
+    vec2 uv = _position.xy;
+    uv += 0.5;
+    uv.y = 1.0 - uv.y;
+    
+    float targetAspect = iWorldScale.x / iWorldScale.y;
+    float sourceAspect = aspect(iChannelResolution[0].xy);
+    float aspectCorrection = sourceAspect / targetAspect;
+    if (aspectCorrection > 1.0) {
+        float offset = aspectCorrection - 1.0;
+        float halfOffset = offset / 2.0;
+        uv.y -= halfOffset;
+        uv.y *= aspectCorrection;
+    } else {
+        float offset = 1.0 - aspectCorrection;
+        float halfOffset = offset / 2.0;
+        uv.x -= halfOffset;
+        uv.x /= aspectCorrection;
+    }
+    
+    if (any(lessThan(uv, vec2(0.0)))) {
+        return vec3(0.0);
+    }
+
+    if (any(greaterThan(uv, vec2(1.0)))) {
+        return vec3(0.0);
+    }
+
+    vec4 color = texture(iChannel0, uv);
+    return color.rgb * max(0.5, sourceAspect) * max(0.9, fract(iWorldPosition.x));
+}
+
+float getProceduralColors(inout vec3 diffuse, inout vec3 specular, inout float shininess) {
+    specular = aspectCorrectedTexture();
+    return 1.0;
+}
+

examples/tests/textureStress.js

@@ -0,0 +1,67 @@
+Script.include("https://s3.amazonaws.com/DreamingContent/scripts/Austin.js");
+
+var ENTITY_SPAWN_LIMIT = 500;
+var ENTITY_LIFETIME = 600; 
+var RADIUS = 1.0;   // Spawn within this radius (square)
+var TEST_ENTITY_NAME = "EntitySpawnTest";
+    
+var entities = [];
+var textureIndex = 0;
+var texture = Script.resolvePath('cube_texture.png');
+var shader = Script.resolvePath('textureStress.fs');
+var qml = Script.resolvePath('textureStress.qml');
+qmlWindow = new OverlayWindow({
+    title: 'Test Qml', 
+    source: qml, 
+    height: 240, 
+    width: 320, 
+    toolWindow: false,
+    visible: true
+});
+
+function deleteItems(count) {
+    if (!count) {
+        var ids = Entities.findEntities(MyAvatar.position, 50);
+        ids.forEach(function(id) {
+            var properties = Entities.getEntityProperties(id, ["name"]);
+            if (properties.name === TEST_ENTITY_NAME) {
+                Entities.deleteEntity(id);
+            }
+        }, this);
+        entities = [];
+        return;
+    } else {
+        // FIXME... implement
+    }
+}
+
+function createItems(count) {
+    for (var i = 0; i < count; ++i) {
+        var newEntity = Entities.addEntity({
+            type: "Box",
+            name: TEST_ENTITY_NAME,
+            position: AUSTIN.avatarRelativePosition(AUSTIN.randomPositionXZ({ x: 0, y: 0, z: -2 }, RADIUS)),
+            color: { r: 255, g: 255, b: 255 },
+            dimensions: AUSTIN.randomDimensions(),
+            lifetime: ENTITY_LIFETIME,
+            userData: JSON.stringify({ 
+                ProceduralEntity: {
+                    version: 2,
+                    shaderUrl: shader,
+                    channels: [ texture + "?" + textureIndex++ ]  
+                }
+            })
+        });
+        entities.push(newEntity);
+    }    
+}
+
+qmlWindow.fromQml.connect(function(message){
+    print(message);
+    if (message[0] === "create") {
+        var count = message[1] || 1;
+        createItems(message[1] || 1);
+    } else if (message[0] === "delete") {
+        deleteItems(message[1]);
+    }
+});

examples/tests/textureStress.qml

@@ -0,0 +1,69 @@
+import QtQuick 2.5
+import QtQuick.Controls 1.4
+
+Rectangle {
+    id: root
+    width: parent ? parent.width : 100
+    height: parent ? parent.height : 100
+            
+    signal sendToScript(var message);
+
+    Text {
+        id: label
+        text: "GPU Texture Usage: "
+    }
+    Text {
+        id: usage
+        anchors.left: label.right
+        anchors.leftMargin: 8
+        text: "N/A"
+        Timer {
+            repeat: true
+            running: true
+            interval: 500
+            onTriggered: {
+                usage.text = Render.getConfig("Stats")["textureGPUMemoryUsage"];
+            }
+        }
+    }
+
+    Column {
+
+        
+        anchors { left: parent.left; right: parent.right; top: label.bottom; topMargin: 8; bottom: parent.bottom }
+        spacing: 8
+
+        Button {
+            text: "Add 1"
+            onClicked: root.sendToScript(["create", 1]);
+        }
+        Button {
+            text: "Add 10"
+            onClicked: root.sendToScript(["create", 10]);
+        }
+        Button {
+            text: "Add 100"
+            onClicked: root.sendToScript(["create", 100]);
+        }
+        /*
+        Button {
+            text: "Delete 1"
+            onClicked: root.sendToScript(["delete", 1]);
+        }
+        Button {
+            text: "Delete 10"
+            onClicked: root.sendToScript(["delete", 10]);
+        }
+        Button {
+            text: "Delete 100"
+            onClicked: root.sendToScript(["delete", 100]);
+        }
+        */
+        Button {
+            text: "Delete All"
+            onClicked: root.sendToScript(["delete", 0]);
+        }
+    }
+}
+
+

libraries/ui/src/QmlWindowClass.cpp

@@ -122,13 +122,18 @@ void QmlWindowClass::initQml(QVariantMap properties) {
             object->setProperty(SOURCE_PROPERTY, _source);
 
             // Forward messages received from QML on to the script
-            connect(_qmlWindow, SIGNAL(sendToScript(QVariant)), this, SIGNAL(fromQml(const QVariant&)), Qt::QueuedConnection);
+            connect(_qmlWindow, SIGNAL(sendToScript(QVariant)), this, SLOT(qmlToScript(const QVariant&)), Qt::QueuedConnection);
         });
     }
     Q_ASSERT(_qmlWindow);
     Q_ASSERT(dynamic_cast<const QQuickItem*>(_qmlWindow.data()));
 }
 
+void QmlWindowClass::qmlToScript(const QVariant& message) {
+    QJSValue js = qvariant_cast<QJSValue>(message);
+    emit fromQml(js.toVariant());
+}
+
 void QmlWindowClass::sendToQml(const QVariant& message) {
     // Forward messages received from the script on to QML
     QMetaObject::invokeMethod(asQuickItem(), "fromScript", Qt::QueuedConnection, Q_ARG(QVariant, message));

libraries/ui/src/QmlWindowClass.h

@@ -63,6 +63,7 @@ signals:
 
 protected slots:
     void hasClosed();
+    void qmlToScript(const QVariant& message);
 
 protected:
     static QVariantMap parseArguments(QScriptContext* context);