Added ETC2 and ASTC texture variants (Refs #174)

android/instancing/AndroidManifest.xml

@@ -15,6 +15,7 @@
                 android:label="Instancing"
                 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="vulkanInstancing" />
 			<intent-filter>

android/instancing/build.bat

@@ -1,27 +0,0 @@
-cd jni
-call ndk-build
-if %ERRORLEVEL% EQU 0 (
-	cd..
-
-	mkdir "assets\shaders\base"
-	xcopy "..\..\data\shaders\base\*.spv" "assets\shaders\base" /Y
-	
-	mkdir "assets\shaders\instancing"
-	xcopy "..\..\data\shaders\instancing\*.spv" "assets\shaders\instancing" /Y
-
-	mkdir "assets\textures"
-	xcopy "..\..\data\textures\texturearray_rocks_bc3.ktx" "assets\textures" /Y 
-	xcopy "..\..\data\textures\lavaplanet_bc3.ktx" "assets\textures" /Y 
-	
-	mkdir "assets\models"
-	xcopy "..\..\data\models\rock01.dae" "assets\models" /Y 
-	xcopy "..\..\data\models\sphere.obj" "assets\models" /Y 	
-	
-	mkdir "res\drawable"
-	xcopy "..\..\android\images\icon.png" "res\drawable" /Y
-
-	call ant debug -Dout.final.file=vulkanInstancing.apk
-) ELSE (
-	echo error : ndk-build failed with errors!
-	cd..
-)

android/instancing/build.py

@@ -0,0 +1,47 @@
+import os
+import shutil
+import subprocess
+import sys
+import glob
+
+APK_NAME = "vulkanInstancing"
+SHADER_DIR = "instancing"
+ASSETS_MODELS = ["rock01.dae", "sphere.obj", ]
+ASSETS_TEXTURES = ["texturearray_rocks_bc3_unorm.ktx", "texturearray_rocks_astc_8x8_unorm.ktx", "texturearray_rocks_etc2_unorm.ktx", "lavaplanet_bc3_unorm.ktx", "lavaplanet_astc_8x8_unorm.ktx", "lavaplanet_etc2_unorm.ktx"]
+
+if subprocess.call("ndk-build", shell=True) == 0:   
+    print("Build successful")
+
+    # Assets
+    os.makedirs("./assets/shaders/base", exist_ok=True)
+    os.makedirs("./assets/shaders/%s" % SHADER_DIR, exist_ok=True)
+    os.makedirs("./assets/textures", exist_ok=True)           
+    os.makedirs("./assets/models", exist_ok=True)           
+    os.makedirs("./res/drawable", exist_ok=True)
+
+    # Shaders    
+    # Base
+    for file in glob.glob("../../data/shaders/base/*.spv"):
+        shutil.copy(file, "./assets/shaders/base")    
+    # Sample
+    for file in glob.glob("../../data/shaders/%s/*.spv" %SHADER_DIR):
+        shutil.copy(file, "./assets/shaders/%s" % SHADER_DIR)    
+    # Textures
+    for file in ASSETS_TEXTURES:
+        shutil.copy("../../data/textures/%s" % file, "./assets/textures")        
+    # Models
+    for file in ASSETS_MODELS:
+        shutil.copy("../../data/models/%s" % file, "./assets/models")
+
+    # Icon
+    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!")

instancing/instancing.cpp

@@ -123,7 +123,7 @@ public:
 		VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
 
 		VkClearValue clearValues[2];
-		clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
+		clearValues[0].color = { { 0.0f, 0.0f, 0.2f, 0.0f } };
 		clearValues[1].depthStencil = { 1.0f, 0 };
 
 		VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
@@ -185,8 +185,29 @@ public:
 	{
 		models.rock.loadFromFile(getAssetPath() + "models/rock01.dae", vertexLayout, 0.1f, vulkanDevice, queue);
 		models.planet.loadFromFile(getAssetPath() + "models/sphere.obj", vertexLayout, 0.2f, vulkanDevice, queue);
-		textures.rocks.loadFromFile(getAssetPath() + "textures/texturearray_rocks_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, vulkanDevice, queue);
-		textures.planet.loadFromFile(getAssetPath() + "textures/lavaplanet_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, vulkanDevice, queue);
+
+		// Textures
+		std::string texFormatSuffix;
+		VkFormat texFormat;
+		// Get supported compressed texture format
+		if (vulkanDevice->features.textureCompressionBC) {
+			texFormatSuffix = "_bc3_unorm";
+			texFormat = VK_FORMAT_BC3_UNORM_BLOCK;
+		}
+		else if (vulkanDevice->features.textureCompressionASTC_LDR) {
+			texFormatSuffix = "_astc_8x8_unorm";
+			texFormat = VK_FORMAT_ASTC_8x8_UNORM_BLOCK;
+		}
+		else if (vulkanDevice->features.textureCompressionETC2) {
+			texFormatSuffix = "_etc2_unorm";
+			texFormat = VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;
+		}
+		else {
+			vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
+		}
+
+		textures.rocks.loadFromFile(getAssetPath() + "textures/texturearray_rocks" + texFormatSuffix + ".ktx", texFormat, vulkanDevice, queue);
+		textures.planet.loadFromFile(getAssetPath() + "textures/lavaplanet" + texFormatSuffix + ".ktx", texFormat, vulkanDevice, queue);
 	}
 
 	void setupDescriptorPool()