From 4ae7cc93b503cc31272f0b55c84410af30aea8b9 Mon Sep 17 00:00:00 2001
From: Mike Krus <mike.krus@kdab.com>
Date: Thu, 16 Jan 2020 16:48:21 +0000
Subject: Add QRenderCapabilities to query GL about what is supported

Change-Id: I7981e7e4b514e5d15d66c82351f1ab2fe160d20d
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
---
 examples/qt3d/scene3d/AnimatedEntity.qml |  4 ++-
 examples/qt3d/scene3d/main.cpp           |  2 +-
 examples/qt3d/scene3d/main.qml           | 50 +++++++++++++++++++++++++++++++-
 3 files changed, 53 insertions(+), 3 deletions(-)

(limited to 'examples')

diff --git a/examples/qt3d/scene3d/AnimatedEntity.qml b/examples/qt3d/scene3d/AnimatedEntity.qml
index 2cfeeb73a..77cc15aa3 100644
--- a/examples/qt3d/scene3d/AnimatedEntity.qml
+++ b/examples/qt3d/scene3d/AnimatedEntity.qml
@@ -49,7 +49,7 @@
 ****************************************************************************/
 
 import Qt3D.Core 2.0
-import Qt3D.Render 2.0
+import Qt3D.Render 2.15
 import Qt3D.Input 2.0
 import Qt3D.Extras 2.15
 
@@ -58,6 +58,7 @@ import QtQuick 2.0 as QQ2
 
 Entity {
     id: sceneRoot
+    property RenderCapabilities capabilities : renderSettings.renderCapabilities
 
     Camera {
         id: camera
@@ -74,6 +75,7 @@ Entity {
 
     components: [
         RenderSettings {
+            id: renderSettings
             activeFrameGraph: ForwardRenderer {
                 camera: camera
                 clearColor: "transparent"
diff --git a/examples/qt3d/scene3d/main.cpp b/examples/qt3d/scene3d/main.cpp
index 8d8bc581e..2a988a271 100644
--- a/examples/qt3d/scene3d/main.cpp
+++ b/examples/qt3d/scene3d/main.cpp
@@ -71,7 +71,7 @@ int main(int argc, char **argv)
 
     QQuickView view;
 
-    view.resize(500, 500);
+    view.resize(1024, 768);
     view.setResizeMode(QQuickView::SizeRootObjectToView);
     view.setSource(QUrl("qrc:/main.qml"));
     view.show();
diff --git a/examples/qt3d/scene3d/main.qml b/examples/qt3d/scene3d/main.qml
index f50528a13..6d5617ca3 100644
--- a/examples/qt3d/scene3d/main.qml
+++ b/examples/qt3d/scene3d/main.qml
@@ -50,6 +50,7 @@
 
 import QtQuick 2.0
 import QtQuick.Scene3D 2.0
+import Qt3D.Render 2.15
 
 Item {
     Text {
@@ -99,7 +100,54 @@ Item {
             aspects: ["input", "logic"]
             cameraAspectRatioMode: Scene3D.AutomaticAspectRatio
 
-            AnimatedEntity {}
+            AnimatedEntity {
+                id: rootEntity
+            }
+        }
+    }
+
+    Rectangle {
+        radius: 10
+        color: "#aaffffff"
+        border.width: 1
+        border.color: "black"
+        width: childrenRect.width + anchors.margins
+        height: childrenRect.height + anchors.margins
+        anchors.bottom: parent.bottom
+        anchors.right: parent.right
+        anchors.margins: 20
+
+        Column {
+            x: parent.anchors.margins / 2
+            y: x
+
+            Text { text: "Vendor: " + rootEntity.capabilities.vendor }
+            Text { text: "Renderer: " + rootEntity.capabilities.renderer }
+            Text { text: "Driver Version: " + rootEntity.capabilities.driverVersion }
+            Text { text: "GL Version: " + rootEntity.capabilities.majorVersion + "." + rootEntity.capabilities.minorVersion }
+            Text { text: "Profile: " + (rootEntity.capabilities.profile === RenderCapabilities.CoreProfile ? "Core" : (rootEntity.capabilities.profile === RenderCapabilities.CompatibilityProfile ? "Compatibility" : "Unknown")) }
+            Text { text: "GLSL Version: " + rootEntity.capabilities.glslVersion }
+            Text { text: "Extensions: " + (rootEntity.capabilities.extensions.length ? "" : "None") }
+            ListView {
+                model: rootEntity.capabilities.extensions
+                delegate: Text { text: "  " + model.modelData }
+                width: parent.width
+                height: 100
+                visible: rootEntity.capabilities.extensions.length > 0
+                clip: true
+            }
+            Text { text: "Max Texture Size: " + rootEntity.capabilities.maxTextureSize + "\nMax Texture Units: " + rootEntity.capabilities.maxTextureUnits + "\nMax Texture Layers: " + rootEntity.capabilities.maxTextureLayers }
+            Text { text: "Supports UBO: " + rootEntity.capabilities.supportsUBO }
+            Text { text: "  Max UBO Size: " + rootEntity.capabilities.maxUBOSize + "\n  Max UBO Bindings: " + rootEntity.capabilities.maxUBOBindings; visible: rootEntity.capabilities.supportsUBO }
+            Text { text: "Supports SSBO: " + rootEntity.capabilities.supportsSSBO }
+            Text { text: "  Max SSBO Size: " + rootEntity.capabilities.maxSSBOSize + "\n  Max SSBO Bindings: " + rootEntity.capabilities.maxSSBOBindings; visible: rootEntity.capabilities.supportsSSBO }
+            Text { text: "Supports Image Store: " + rootEntity.capabilities.supportsImageStore }
+            Text { text: "  Max Image Units: " + rootEntity.capabilities.maxImageUnits; visible: rootEntity.capabilities.supportsImageStore }
+            Text { text: "Supports Compute Shaders: " + rootEntity.capabilities.supportsCompute }
+            Text { text: "  Max Work Group Size: " + rootEntity.capabilities.maxWorkGroupSizeX + ", " + rootEntity.capabilities.maxWorkGroupSizeY + ", " + rootEntity.capabilities.maxWorkGroupSizeZ; visible: rootEntity.capabilities.supportsCompute }
+            Text { text: "  Max Work Group Count: " + rootEntity.capabilities.maxWorkGroupCountX + ", " + rootEntity.capabilities.maxWorkGroupCountY + ", " + rootEntity.capabilities.maxWorkGroupCountZ; visible: rootEntity.capabilities.supportsCompute }
+            Text { text: "  Max Invocations: " + rootEntity.capabilities.maxComputeInvocations; visible: rootEntity.capabilities.supportsCompute }
+            Text { text: "  Max Shared Memory: " + rootEntity.capabilities.maxComputeSharedMemorySize; visible: rootEntity.capabilities.supportsCompute }
         }
     }
 
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