Added ETC2 and ASTC texture variants (Refs #174), only enable wireframe if non solid fillmode is supported by the device

android/mesh/AndroidManifest.xml

@@ -15,6 +15,7 @@
                 android:label="Mesh"
                 android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
 				android:launchMode="singleTask"
+                android:screenOrientation="landscape"                                
                 android:configChanges="orientation|screenSize|keyboardHidden">
 			<meta-data android:name="android.app.lib_name" android:value="vulkanMesh" />
 			<intent-filter>

android/mesh/build.bat

@@ -1,26 +0,0 @@
-cd jni
-call ndk-build
-if %ERRORLEVEL% EQU 0 (
-	echo ndk-build has failed, build cancelled
-	cd..
-
-	mkdir "assets\shaders\base"
-	xcopy "..\..\data\shaders\base\*.spv" "assets\shaders\base" /Y
-	
-
-	mkdir "assets\shaders\mesh"
-	xcopy "..\..\data\shaders\mesh\mesh.vert.spv" "assets\shaders\mesh" /Y
-	xcopy "..\..\data\shaders\mesh\mesh.frag.spv" "assets\shaders\mesh" /Y
-
-	mkdir "assets\models\voyager"
-	xcopy "..\..\data\models\voyager\voyager.ktx" "assets\models\voyager" /Y
-	xcopy "..\..\data\models\voyager\voyager.dae" "assets\models\voyager" /Y
-	
-	mkdir "res\drawable"
-	xcopy "..\..\android\images\icon.png" "res\drawable" /Y
-
-	call ant debug -Dout.final.file=vulkanMesh.apk
-) ELSE (
-	echo error : ndk-build failed with errors!
-	cd..
-)

android/mesh/build.py

@@ -0,0 +1,52 @@
+import os
+import shutil
+import subprocess
+import sys
+import glob
+
+APK_NAME = "vulkanMesh"
+SHADER_DIR = "mesh"
+ASSETS_MODELS = ["voyager.dae"]
+ASSETS_TEXTURES = ["voyager_astc_8x8_unorm.ktx", "voyager_bc3_unorm.ktx", "voyager_etc2_unorm.ktx"]
+
+if subprocess.call("ndk-build", shell=True) == 0:   
+    print("Build successful")
+
+    # Assets
+    if not os.path.exists("./assets"):
+        os.makedirs("./assets")  
+
+    # Shaders    
+    # Base
+    if not os.path.exists("./assets/shaders/base"):
+        os.makedirs("./assets/shaders/base")           
+    for file in glob.glob("../../data/shaders/base/*.spv"):
+        shutil.copy(file, "./assets/shaders/base")    
+    # Sample
+    if not os.path.exists("./assets/shaders/%s" % SHADER_DIR):
+        os.makedirs("./assets/shaders/%s" % SHADER_DIR)
+    for file in glob.glob("../../data/shaders/%s/*.spv" %SHADER_DIR):
+        shutil.copy(file, "./assets/shaders/%s" % SHADER_DIR)    
+    # Textures
+    if not os.path.exists("./assets/models/voyager"):
+        os.makedirs("./assets/models/voyager")           
+    for file in ASSETS_TEXTURES:
+        shutil.copy("../../data/models/voyager/%s" % file, "./assets/models/voyager")        
+    # Models
+    for file in ASSETS_MODELS:        
+        shutil.copy("../../data/models/voyager/%s" % file, "./assets/models/voyager")
+
+    # Icon
+    if not os.path.exists("./res/drawable"):
+        os.makedirs("./res/drawable")         
+    shutil.copy("../../android/images/icon.png", "./res/drawable")      
+
+    if subprocess.call("ant debug -Dout.final.file=%s.apk" % APK_NAME, shell=True) == 0:
+        if len(sys.argv) > 1:
+            if sys.argv[1] == "-deploy":
+                if subprocess.call("adb install -r %s.apk" % APK_NAME, shell=True) != 0:
+                    print("Could not deploy to device!")
+    else:
+        print("Error during build process!")
+else:
+    print("Error building project!")

mesh/mesh.cpp

@@ -104,8 +104,6 @@ public:
 		cameraPos = { 0.1f, 1.1f, 0.0f };
 		enableTextOverlay = true;
 		title = "Vulkan Example - Model rendering";
-		// Enable physical device features required for this example				
-		enabledFeatures.fillModeNonSolid = VK_TRUE;
 	}
 
 	~VulkanExample()
@@ -124,6 +122,14 @@ public:
 		uniformBuffers.scene.destroy();
 	}
 
+	virtual void getEnabledFeatures()
+	{
+		// Fill mode non solid is required for wireframe display
+		if (deviceFeatures.fillModeNonSolid) {
+			enabledFeatures.fillModeNonSolid = VK_TRUE;
+		};
+	}
+
 	void reBuildCommandBuffers()
 	{
 		if (!checkCommandBuffers())
@@ -356,7 +362,18 @@ public:
 	void loadAssets()
 	{
 		loadModel(getAssetPath() + "models/voyager/voyager.dae");
-		textures.colorMap.loadFromFile(getAssetPath() + "models/voyager/voyager.ktx", VK_FORMAT_BC3_UNORM_BLOCK, vulkanDevice, queue);
+		if (deviceFeatures.textureCompressionBC) {
+			textures.colorMap.loadFromFile(getAssetPath() + "models/voyager/voyager_bc3_unorm.ktx", VK_FORMAT_BC3_UNORM_BLOCK, vulkanDevice, queue);
+		}
+		else if (deviceFeatures.textureCompressionASTC_LDR) {
+			textures.colorMap.loadFromFile(getAssetPath() + "models/voyager/voyager_astc_8x8_unorm.ktx", VK_FORMAT_ASTC_8x8_UNORM_BLOCK, vulkanDevice, queue);
+		}
+		else if (deviceFeatures.textureCompressionETC2) {
+			textures.colorMap.loadFromFile(getAssetPath() + "models/voyager/voyager_etc2_unorm.ktx", VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK, vulkanDevice, queue);
+		}
+		else {
+			vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
+		}
 	}
 
 	void setupVertexDescriptions()
@@ -568,10 +585,11 @@ public:
 		VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.solid));
 
 		// Wire frame rendering pipeline
-		rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
+		if (deviceFeatures.fillModeNonSolid) {
-		rasterizationState.lineWidth = 1.0f;
+			rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
-
+			rasterizationState.lineWidth = 1.0f;
-		VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe));
+			VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe));
+		}
 	}
 
 	// Prepare and initialize uniform buffer containing shader uniforms
@@ -649,19 +667,23 @@ public:
 		{
 		case KEY_W:
 		case GAMEPAD_BUTTON_A:
-			wireframe = !wireframe;
+			if (deviceFeatures.fillModeNonSolid) {
-			reBuildCommandBuffers();
+				wireframe = !wireframe;
+				reBuildCommandBuffers();
+			}
 			break;
 		}
 	}
 
 	virtual void getOverlayText(VulkanTextOverlay *textOverlay)
 	{
+		if (deviceFeatures.fillModeNonSolid) {
 #if defined(__ANDROID__)
-		textOverlay->addText("Press \"Button A\" to toggle wireframe", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
+			textOverlay->addText("Press \"Button A\" to toggle wireframe", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
 #else
-		textOverlay->addText("Press \"w\" to toggle wireframe", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
+			textOverlay->addText("Press \"w\" to toggle wireframe", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
 #endif
+		}
 	}
 };