Added ETC2 and ASTC texture variants (Refs #174)

android/scenerendering/build.bat

@@ -1,23 +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\scenerendering"
-	xcopy "..\..\data\shaders\scenerendering\*.*" "assets\shaders\scenerendering" /Y
-
-	mkdir "assets\models\sibenik"
-	xcopy "..\..\data\models\sibenik\*.*" "assets\models\sibenik" /Y
-	
-	mkdir "res\drawable"
-	xcopy "..\..\android\images\icon.png" "res\drawable" /Y
-
-	call ant debug -Dout.final.file=vulkanScenerendering.apk
-) ELSE (
-	echo error : ndk-build failed with errors!
-	cd..
-)

android/scenerendering/build.py

@@ -0,0 +1,47 @@
+import os
+import shutil
+import subprocess
+import sys
+import glob
+
+APK_NAME = "scenerendering"
+SHADER_DIR = "pbribl"
+
+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 and model
+    if not os.path.exists("./assets/models/sibenik/"):
+        os.makedirs("./assets/models/sibenik/")           
+    for file in glob.glob("../../data/models/sibenik/*.*"):
+        shutil.copy(file, "./assets/models/sibenik")    
+
+    # 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!")

scenerendering/scenerendering.cpp

@@ -148,6 +148,25 @@ private:
 			std::cout << "Material \"" << materials[i].name << "\"" << std::endl;
 
 			// 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");
+			}
+
 			aiString texturefile;
 			// Diffuse
 			aScene->mMaterials[i]->GetTexture(aiTextureType_DIFFUSE, 0, &texturefile);
@@ -156,13 +175,14 @@ private:
 				std::cout << "  Diffuse: \"" << texturefile.C_Str() << "\"" << std::endl;
 				std::string fileName = std::string(texturefile.C_Str());
 				std::replace(fileName.begin(), fileName.end(), '\\', '/');
-				materials[i].diffuse.loadFromFile(assetPath + fileName, VK_FORMAT_BC3_UNORM_BLOCK, vulkanDevice, queue);
+				fileName.insert(fileName.find(".ktx"), texFormatSuffix);
+				materials[i].diffuse.loadFromFile(assetPath + fileName, texFormat, vulkanDevice, queue);
 			}
 			else
 			{
 				std::cout << "  Material has no diffuse, using dummy texture!" << std::endl;
 				// todo : separate pipeline and layout
-				materials[i].diffuse.loadFromFile(assetPath + "dummy.ktx", VK_FORMAT_BC2_UNORM_BLOCK, vulkanDevice, queue);
+				materials[i].diffuse.loadFromFile(assetPath + "dummy_rgba_unorm.ktx", VK_FORMAT_R8G8B8A8_UNORM, vulkanDevice, queue);
 			}
 
 			// For scenes with multiple textures per material we would need to check for additional texture types, e.g.:
@@ -563,6 +583,7 @@ public:
 
 	VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
 	{
+		title = "Vulkan Example - Scene rendering";
 		rotationSpeed = 0.5f;
 		enableTextOverlay = true;
 		camera.type = Camera::CameraType::firstperson;
@@ -570,8 +591,6 @@ public:
 		camera.position = { 15.0f, -13.5f, 0.0f };
 		camera.setRotation(glm::vec3(5.0f, 90.0f, 0.0f));
 		camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 256.0f);
-		title = "Vulkan Example - Scene rendering";
-		enabledFeatures.fillModeNonSolid = VK_TRUE;
 	}
 
 	~VulkanExample()
@@ -579,6 +598,15 @@ public:
 		delete(scene);
 	}
 
+	// Enable physical device features required for this example				
+	virtual void getEnabledFeatures()
+	{
+		// Fill mode non solid is required for wireframe display
+		if (deviceFeatures.fillModeNonSolid) {
+			enabledFeatures.fillModeNonSolid = VK_TRUE;
+		};
+	}
+
 	void reBuildCommandBuffers()
 	{
 		if (!checkCommandBuffers())
@@ -762,12 +790,14 @@ public:
 		VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &scene->pipelines.blending));
 
 		// Wire frame rendering pipeline
+		if (deviceFeatures.fillModeNonSolid) {
 			rasterizationState.cullMode = VK_CULL_MODE_BACK_BIT;
 			blendAttachmentState.blendEnable = VK_FALSE;
 			rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
 			rasterizationState.lineWidth = 1.0f;
 			VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &scene->pipelines.wireframe));
 		}
+	}
 
 	void updateUniformBuffers()
 	{
@@ -839,8 +869,10 @@ public:
 		{
 		case KEY_SPACE:
 		case GAMEPAD_BUTTON_A:
+			if (deviceFeatures.fillModeNonSolid) {
 				wireframe = !wireframe;
 				reBuildCommandBuffers();
+			}
 			break;
 		case KEY_P:
 			scene->renderSingleScenePart = !scene->renderSingleScenePart;
@@ -866,6 +898,7 @@ public:
 
 	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);
 #else
@@ -880,6 +913,7 @@ public:
 			}
 #endif
 		}
+	}
 };
 
 VULKAN_EXAMPLE_MAIN()