From a8ee48c4b72c465ae946ea11a1a1fb39904b73cf Mon Sep 17 00:00:00 2001 From: Mathias Agopian Date: Fri, 12 Dec 2025 14:15:58 -0800 Subject: [PATCH] a series of CL to add RenderTarget support for external textures (#9504) * add support for AHardwareBuffer to the java bindings Texture.setEXternalIamge() now can take a AHArdwreBuffer Java object as a parameter. * add an API to set the priority of the Skybox by default the skybox is always drawn last (priority 7) in order to reduce overdraw. however, when depth culling is not enabled, it needs to be drawn first. The new Builder::priority() allows to set an arbitrary priority for the skybox. * add rendertarget support for external textures This was in fact mostly already supported, we just were artificially preventing that usage. It is supported by the EGL_external_image extension. It's the responsibility of the caller/user to not attempt to use an incompatible format, which has undefined behavior. FIXES=[466395306] * add a new android sample to test the AHardwareBuffer as render target --------- Co-authored-by: Powei Feng --- android/build.gradle | 1 + android/filament-android/CMakeLists.txt | 7 + .../filament-android/src/main/cpp/SkyBox.cpp | 8 + .../filament-android/src/main/cpp/Texture.cpp | 57 +++ .../com/google/android/filament/Skybox.java | 19 + .../com/google/android/filament/Texture.java | 44 ++ .../samples/sample-texture-target/.gitignore | 12 + .../sample-texture-target/build.gradle | 53 +++ .../src/main/AndroidManifest.xml | 22 + .../filament/texturetarget/MainActivity.kt | 429 ++++++++++++++++++ .../src/main/materials/baked_color.mat | 18 + .../src/main/materials/textured.mat | 20 + .../drawable-v24/ic_launcher_foreground.xml | 34 ++ .../res/drawable/ic_launcher_background.xml | 171 +++++++ .../res/mipmap-anydpi-v26/ic_launcher.xml | 5 + .../mipmap-anydpi-v26/ic_launcher_round.xml | 5 + .../src/main/res/mipmap-hdpi/ic_launcher.png | Bin 0 -> 3056 bytes .../res/mipmap-hdpi/ic_launcher_round.png | Bin 0 -> 5024 bytes .../src/main/res/mipmap-mdpi/ic_launcher.png | Bin 0 -> 2096 bytes .../res/mipmap-mdpi/ic_launcher_round.png | Bin 0 -> 2858 bytes .../src/main/res/mipmap-xhdpi/ic_launcher.png | Bin 0 -> 4569 bytes .../res/mipmap-xhdpi/ic_launcher_round.png | Bin 0 -> 7098 bytes .../main/res/mipmap-xxhdpi/ic_launcher.png | Bin 0 -> 6464 bytes .../res/mipmap-xxhdpi/ic_launcher_round.png | Bin 0 -> 10676 bytes .../main/res/mipmap-xxxhdpi/ic_launcher.png | Bin 0 -> 9250 bytes .../res/mipmap-xxxhdpi/ic_launcher_round.png | Bin 0 -> 15523 bytes .../src/main/res/values/colors.xml | 6 + .../src/main/res/values/strings.xml | 3 + .../src/main/res/values/styles.xml | 8 + android/settings.gradle | 1 + filament/backend/src/opengl/OpenGLDriver.cpp | 11 +- filament/include/filament/Skybox.h | 14 + filament/src/details/MaterialInstance.cpp | 4 + filament/src/details/RenderTarget.cpp | 4 - filament/src/details/Skybox.cpp | 10 +- filament/src/details/Texture.cpp | 12 +- web/filament-js/jsbindings.cpp | 2 + 37 files changed, 965 insertions(+), 15 deletions(-) create mode 100644 android/samples/sample-texture-target/.gitignore create mode 100644 android/samples/sample-texture-target/build.gradle create mode 100644 android/samples/sample-texture-target/src/main/AndroidManifest.xml create mode 100644 android/samples/sample-texture-target/src/main/java/com/google/android/filament/texturetarget/MainActivity.kt create mode 100644 android/samples/sample-texture-target/src/main/materials/baked_color.mat create mode 100644 android/samples/sample-texture-target/src/main/materials/textured.mat create mode 100644 android/samples/sample-texture-target/src/main/res/drawable-v24/ic_launcher_foreground.xml create mode 100644 android/samples/sample-texture-target/src/main/res/drawable/ic_launcher_background.xml create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-anydpi-v26/ic_launcher.xml create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-hdpi/ic_launcher.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-hdpi/ic_launcher_round.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-mdpi/ic_launcher.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-mdpi/ic_launcher_round.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-xhdpi/ic_launcher.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-xhdpi/ic_launcher_round.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-xxhdpi/ic_launcher.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-xxhdpi/ic_launcher_round.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-xxxhdpi/ic_launcher.png create mode 100644 android/samples/sample-texture-target/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png create mode 100644 android/samples/sample-texture-target/src/main/res/values/colors.xml create mode 100644 android/samples/sample-texture-target/src/main/res/values/strings.xml create mode 100644 android/samples/sample-texture-target/src/main/res/values/styles.xml diff --git a/android/build.gradle b/android/build.gradle index fe03c55d59..0886b009b7 100644 --- a/android/build.gradle +++ b/android/build.gradle @@ -124,6 +124,7 @@ buildscript { ext.cmakeArgs = [ "--no-warn-unused-cli", + "-DANDROID_WEAK_API_DEFS=ON", "-DANDROID_PIE=ON", "-DANDROID_PLATFORM=21", "-DANDROID_STL=c++_static", diff --git a/android/filament-android/CMakeLists.txt b/android/filament-android/CMakeLists.txt index 94ad5ef6a5..dec19c5bb2 100644 --- a/android/filament-android/CMakeLists.txt +++ b/android/filament-android/CMakeLists.txt @@ -134,6 +134,7 @@ target_include_directories(filament-jni PRIVATE ../../filament/backend/include ../../third_party/robin-map ../../third_party/perfetto + ../../libs/bluevk/include ../../libs/utils/include) # Ordering is significant in the following list. The PRIVATE qualifier prevents transitive deps. @@ -167,3 +168,9 @@ target_link_libraries(filament-jni # Force a relink when the version script is changed: set_target_properties(filament-jni PROPERTIES LINK_DEPENDS ${VERSION_SCRIPT}) + +if (FILAMENT_SUPPORTS_VULKAN) + add_definitions(-DFILAMENT_SUPPORTS_VULKAN=1) +else() + add_definitions(-DFILAMENT_SUPPORTS_VULKAN=0) +endif() diff --git a/android/filament-android/src/main/cpp/SkyBox.cpp b/android/filament-android/src/main/cpp/SkyBox.cpp index 05d0933345..6e1cc19976 100644 --- a/android/filament-android/src/main/cpp/SkyBox.cpp +++ b/android/filament-android/src/main/cpp/SkyBox.cpp @@ -63,6 +63,14 @@ Java_com_google_android_filament_Skybox_nBuilderColor(JNIEnv *, jclass, builder->color({r, g, b, a}); } +extern "C" +JNIEXPORT void JNICALL +Java_com_google_android_filament_Skybox_nBuilderPriority(JNIEnv *, jclass, + jlong nativeSkyBoxBuilder, jint priority) { + Skybox::Builder *builder = (Skybox::Builder *) nativeSkyBoxBuilder; + builder->priority(uint8_t(priority)); +} + extern "C" JNIEXPORT jlong JNICALL Java_com_google_android_filament_Skybox_nBuilderBuild(JNIEnv *env, jclass type, jlong nativeSkyBoxBuilder, jlong nativeEngine) { diff --git a/android/filament-android/src/main/cpp/Texture.cpp b/android/filament-android/src/main/cpp/Texture.cpp index 159c5729e2..730ffd1e12 100644 --- a/android/filament-android/src/main/cpp/Texture.cpp +++ b/android/filament-android/src/main/cpp/Texture.cpp @@ -21,6 +21,11 @@ #ifdef __ANDROID__ #include +#include +#include +# if FILAMENT_SUPPORTS_VULKAN +# include +# endif #endif #include @@ -388,6 +393,57 @@ Java_com_google_android_filament_Texture_nSetExternalImage(JNIEnv*, jclass, jlon texture->setExternalImage(*engine, (void*)eglImage); } +extern "C" +JNIEXPORT jboolean JNICALL +Java_com_google_android_filament_Texture_nSetExternalImageByAHB(JNIEnv *env, jclass clazz, + jlong nativeTexture, jlong nativeEngine, jobject ahb) { + Texture *texture = (Texture *) nativeTexture; + Engine *engine = (Engine *) nativeEngine; + +#ifdef __ANDROID__ + Platform* platform = engine->getPlatform(); + AHardwareBuffer* nativeBuffer = nullptr; + if (__builtin_available(android 26, *)) { + nativeBuffer = AHardwareBuffer_fromHardwareBuffer(env, ahb); + } + if (!nativeBuffer) { + // either we're not on Android 26, or ahb wasn't a AHardwareBuffer + return JNI_FALSE; + } + + if (engine->getBackend() == Backend::OPENGL) { + // CAVEAT: we assume that Backend::OPENGL on Android implies PlatformEGLAndroid. +#if UTILS_HAS_RTTI + if (!dynamic_cast(platform)) { + return JNI_FALSE; + } +#endif + auto* eglPlatform = (PlatformEGLAndroid*) platform; + auto ref = eglPlatform->createExternalImage(nativeBuffer, false); + texture->setExternalImage(*engine, ref); + } + +#if FILAMENT_SUPPORTS_VULKAN + else if (engine->getBackend() == Backend::VULKAN) { + // CAVEAT: we assume that Backend::VULKAN on Android implies VulkanPlatformAndroid. +#if UTILS_HAS_RTTI + if (!dynamic_cast(platform)) { + return JNI_FALSE; + } +#endif + auto* vulkanPlatform = (VulkanPlatformAndroid*) platform; + auto ref = vulkanPlatform->createExternalImage(nativeBuffer, false); + texture->setExternalImage(*engine, ref); + } +#endif // FILAMENT_SUPPORTS_VULKAN + // success! + return JNI_TRUE; +#else + // other platforms could come here + return JNI_FALSE; +#endif // __ANDROID__ +} + extern "C" JNIEXPORT void JNICALL Java_com_google_android_filament_Texture_nSetExternalStream(JNIEnv*, jclass, jlong nativeTexture, jlong nativeEngine, jlong nativeStream) { @@ -607,3 +663,4 @@ Java_com_google_android_filament_android_TextureHelper_nSetBitmapWithCallback(JN } #endif + diff --git a/android/filament-android/src/main/java/com/google/android/filament/Skybox.java b/android/filament-android/src/main/java/com/google/android/filament/Skybox.java index e387a11cde..bffbfe42ef 100644 --- a/android/filament-android/src/main/java/com/google/android/filament/Skybox.java +++ b/android/filament-android/src/main/java/com/google/android/filament/Skybox.java @@ -155,6 +155,24 @@ public class Skybox { return this; } + /** + * Set the rendering priority of the Skybox. By default, it is set to the lowest + * priority (7) such that the Skybox is always rendered after the opaque objects, + * to reduce overdraw when depth culling is enabled. + * + * @param priority clamped to the range [0..7], defaults to 4; 7 is lowest priority + * (rendered last). + * + * @return Builder reference for chaining calls. + * + * @see RenderableManager.Builder#priority + */ + @NonNull + public Builder priority(@IntRange(from = 0, to = 7) int priority) { + nBuilderPriority(mNativeBuilder, priority); + return this; + } + /** * Creates a Skybox object * @@ -262,6 +280,7 @@ public class Skybox { private static native void nBuilderShowSun(long nativeSkyboxBuilder, boolean show); private static native void nBuilderIntensity(long nativeSkyboxBuilder, float intensity); private static native void nBuilderColor(long nativeSkyboxBuilder, float r, float g, float b, float a); + private static native void nBuilderPriority(long nativeSkyboxBuilder, int priority); private static native long nBuilderBuild(long nativeSkyboxBuilder, long nativeEngine); private static native void nSetLayerMask(long nativeSkybox, int select, int value); private static native int nGetLayerMask(long nativeSkybox); diff --git a/android/filament-android/src/main/java/com/google/android/filament/Texture.java b/android/filament-android/src/main/java/com/google/android/filament/Texture.java index 6fe80ca1f5..6cfd306cc4 100644 --- a/android/filament-android/src/main/java/com/google/android/filament/Texture.java +++ b/android/filament-android/src/main/java/com/google/android/filament/Texture.java @@ -71,6 +71,16 @@ import static com.google.android.filament.Texture.Type.COMPRESSED; * @see MaterialInstance#setParameter(String, Texture, TextureSampler) */ public class Texture { + + private static Class HardwareBufferClass = null; + + static { + try { + HardwareBufferClass = Class.forName("android.hardware.HardwareBuffer"); + } catch (ClassNotFoundException ignored) { + } + } + private static final Sampler[] sSamplerValues = Sampler.values(); private static final InternalFormat[] sInternalFormatValues = InternalFormat.values(); @@ -1172,6 +1182,38 @@ public class Texture { nSetExternalImage(getNativeObject(), engine.getNativeObject(), eglImage); } + /** + * Specifies the external image to associate with this Texture. + * + *

Typically, the external image is OS specific, and can be a video or camera frame. + * There are many restrictions when using an external image as a texture, such as:

+ *
    + *
  • only the level of detail (lod) 0 can be specified
    • + *
  • only nearest or linear filtering is supported
    • + *
  • the size and format of the texture is defined by the external image
    • + *
  • only the CLAMP_TO_EDGE wrap mode is supported
    • + *
+ * + * @param engine {@link Engine} this texture is associated to. Must be the + * instance passed to {@link Builder#build Builder.build()}. + * @param externalImageRef An OS specific Object. On Android it must be a + * android.hardware.HardwareBuffer + */ + public void setExternalImage(@NonNull Engine engine, Object externalImageRef) { + if (HardwareBufferClass != null) { + if (!HardwareBufferClass.isInstance(externalImageRef)) { + throw new IllegalArgumentException("externalImageRef must be a AHardwareBuffer"); + } + if (!nSetExternalImageByAHB(getNativeObject(), engine.getNativeObject(), externalImageRef)) { + throw new IllegalStateException("Error setting AHardwareBuffer as external image"); + } + } else { + throw new UnsupportedOperationException( + "setExternalImage(Engine, Object) not supported on this platform"); + } + } + + /** * Specifies the external stream to associate with this Texture. * @@ -1364,6 +1406,8 @@ public class Texture { private static native void nSetExternalImage( long nativeObject, long nativeEngine, long eglImage); + private static native boolean nSetExternalImageByAHB(long nativeTexture, long nativeObject, Object ahb); + private static native void nSetExternalStream(long nativeTexture, long nativeEngine, long nativeStream); diff --git a/android/samples/sample-texture-target/.gitignore b/android/samples/sample-texture-target/.gitignore new file mode 100644 index 0000000000..71e173b003 --- /dev/null +++ b/android/samples/sample-texture-target/.gitignore @@ -0,0 +1,12 @@ +*.iml +.gradle +/local.properties +/.idea/workspace.xml +/.idea/libraries +/.idea/caches +/.idea/gradle.xml +.DS_Store +/build +/captures +/src/main/assets +.externalNativeBuild diff --git a/android/samples/sample-texture-target/build.gradle b/android/samples/sample-texture-target/build.gradle new file mode 100644 index 0000000000..84ccfbe915 --- /dev/null +++ b/android/samples/sample-texture-target/build.gradle @@ -0,0 +1,53 @@ +plugins { + id 'com.android.application' + id 'kotlin-android' + id 'filament-tools-plugin' +} + +project.ext.isSample = true + +kotlin { + jvmToolchain(versions.jdk) +} + +filamentTools { + materialInputDir = project.layout.projectDirectory.dir("src/main/materials") + materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials") +} + +clean.doFirst { + delete "src/main/assets" +} + +android { + namespace 'com.google.android.filament.texturetarget' + + compileSdkVersion versions.compileSdk + defaultConfig { + applicationId "com.google.android.filament.texturetarget" + minSdkVersion 26 + targetSdkVersion versions.targetSdk + } + + // NOTE: This is a workaround required because the AGP task collectReleaseDependencies + // is not configuration-cache friendly yet; this is only useful for Play publication + dependenciesInfo { + includeInApk = false + } + + // We use the .filamat extension for materials compiled with matc + // Telling aapt to not compress them allows to load them efficiently + aaptOptions { + noCompress 'filamat', 'ktx' + } + + compileOptions { + sourceCompatibility versions.jdk + targetCompatibility versions.jdk + } +} + +dependencies { + implementation deps.kotlin + implementation project(':filament-android') +} diff --git a/android/samples/sample-texture-target/src/main/AndroidManifest.xml b/android/samples/sample-texture-target/src/main/AndroidManifest.xml new file mode 100644 index 0000000000..642333b1fe --- /dev/null +++ b/android/samples/sample-texture-target/src/main/AndroidManifest.xml @@ -0,0 +1,22 @@ + + + + + + + + + + + + + + diff --git a/android/samples/sample-texture-target/src/main/java/com/google/android/filament/texturetarget/MainActivity.kt b/android/samples/sample-texture-target/src/main/java/com/google/android/filament/texturetarget/MainActivity.kt new file mode 100644 index 0000000000..3065038829 --- /dev/null +++ b/android/samples/sample-texture-target/src/main/java/com/google/android/filament/texturetarget/MainActivity.kt @@ -0,0 +1,429 @@ +/* + * Copyright (C) 2024 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.google.android.filament.texturetarget + +import android.animation.ValueAnimator +import android.app.Activity +import android.hardware.HardwareBuffer +import android.opengl.Matrix +import android.os.Bundle +import android.view.Choreographer +import android.view.Surface +import android.view.SurfaceView +import android.view.animation.LinearInterpolator +import com.google.android.filament.* +import com.google.android.filament.RenderableManager.PrimitiveType +import com.google.android.filament.VertexBuffer.AttributeType +import com.google.android.filament.VertexBuffer.VertexAttribute +import com.google.android.filament.android.DisplayHelper +import com.google.android.filament.android.FilamentHelper +import com.google.android.filament.android.UiHelper +import java.nio.ByteBuffer +import java.nio.ByteOrder +import java.nio.channels.Channels +import kotlin.math.PI +import kotlin.math.cos +import kotlin.math.sin + +class MainActivity : Activity() { + companion object { + init { + Filament.init() + } + } + + private lateinit var surfaceView: SurfaceView + private lateinit var uiHelper: UiHelper + private lateinit var displayHelper: DisplayHelper + private lateinit var choreographer: Choreographer + + private lateinit var engine: Engine + private lateinit var renderer: Renderer + private lateinit var scene: Scene + private lateinit var view: View + private lateinit var camera: Camera + + private lateinit var triangleMaterial: Material + private lateinit var texturedMaterial: Material + private lateinit var triangleVertexBuffer: VertexBuffer + private lateinit var triangleIndexBuffer: IndexBuffer + private lateinit var quadVertexBuffer: VertexBuffer + private lateinit var quadIndexBuffer: IndexBuffer + + @Entity private var triangleRenderable = 0 + @Entity private var quadRenderable = 0 + + private var swapChain: SwapChain? = null + + private val frameScheduler = FrameCallback() + private val animator = ValueAnimator.ofFloat(0.0f, 360.0f) + + private var hardwareBuffer: HardwareBuffer? = null + private var texture: Texture? = null + private var renderTarget: RenderTarget? = null + + private lateinit var offscreenView: View + private lateinit var offscreenCamera: Camera + + override fun onCreate(savedInstanceState: Bundle?) { + super.onCreate(savedInstanceState) + surfaceView = SurfaceView(this) + setContentView(surfaceView) + choreographer = Choreographer.getInstance() + displayHelper = DisplayHelper(this) + setupSurfaceView() + setupFilament() + setupView() + setupScene() + } + + private fun setupSurfaceView() { + uiHelper = UiHelper(UiHelper.ContextErrorPolicy.DONT_CHECK) + uiHelper.renderCallback = SurfaceCallback() + uiHelper.attachTo(surfaceView) + } + + private fun setupFilament() { + engine = Engine.create() + renderer = engine.createRenderer() + scene = engine.createScene() + view = engine.createView() + camera = engine.createCamera(engine.entityManager.create()) + offscreenView = engine.createView() + offscreenCamera = engine.createCamera(engine.entityManager.create()) + } + + private fun setupView() { + scene.skybox = Skybox.Builder() + .priority(0) + .color(0.0f, 0.0f, 1.0f, 1.0f).build(engine) + + // This is the view that will be drawn on screen. + view.camera = camera + view.scene = scene + view.isPostProcessingEnabled = false + + // This is the view that will be rendered off-screen. + offscreenView.camera = offscreenCamera + offscreenView.scene = scene + offscreenView.isPostProcessingEnabled = false + } + + private fun setupScene() { + loadMaterials() + createTriangleMesh() + createQuadMesh() + + // layer 1: skybox + // layer 2: triangle + // layer 3: quad + + triangleMaterial.defaultInstance.cullingMode = Material.CullingMode.NONE; + texturedMaterial.defaultInstance.cullingMode = Material.CullingMode.NONE; + + // The triangle is a regular renderable. + triangleRenderable = EntityManager.get().create() + RenderableManager.Builder(1) + .geometry(0, PrimitiveType.TRIANGLES, triangleVertexBuffer, triangleIndexBuffer, 0, 3) + .material(0, triangleMaterial.defaultInstance) + .culling(false) + .castShadows(false) + .receiveShadows(false) + .layerMask(7, 2) + .build(engine, triangleRenderable) + + // The quad is a regular renderable. + quadRenderable = EntityManager.get().create() + RenderableManager.Builder(1) + .geometry(0, PrimitiveType.TRIANGLES, quadVertexBuffer, quadIndexBuffer, 0, 6) + .material(0, texturedMaterial.defaultInstance) + .culling(false) + .castShadows(false) + .receiveShadows(false) + .layerMask(7, 4) + .build(engine, quadRenderable) + + // We only want to render the triangle in the offscreen view. + offscreenView.setVisibleLayers(7, 3) // render skybox + triangle + + // We only want to render the quad in the on-screen view. + view.setVisibleLayers(7, 4) // render quad only + + scene.addEntity(triangleRenderable) + scene.addEntity(quadRenderable) + + startAnimation() + } + + private fun loadMaterials() { + readUncompressedAsset("materials/baked_color.filamat").let { + triangleMaterial = Material.Builder().payload(it, it.remaining()).build(engine) + } + readUncompressedAsset("materials/textured.filamat").let { + texturedMaterial = Material.Builder().payload(it, it.remaining()).build(engine) + } + } + + private fun createTriangleMesh() { + val intSize = 4 + val floatSize = 4 + val shortSize = 2 + val vertexSize = 3 * floatSize + intSize + + data class Vertex(val x: Float, val y: Float, val z: Float, val color: Int) + fun ByteBuffer.put(v: Vertex): ByteBuffer { + putFloat(v.x) + putFloat(v.y) + putFloat(v.z) + putInt(v.color) + return this + } + + val vertexCount = 3 + val a1 = PI * 2.0 / 3.0 + val a2 = PI * 4.0 / 3.0 + + val vertexData = ByteBuffer.allocate(vertexCount * vertexSize) + .order(ByteOrder.nativeOrder()) + .put(Vertex(1.0f, 0.0f, 0.0f, 0xffff0000.toInt())) + .put(Vertex(cos(a1).toFloat(), sin(a1).toFloat(), 0.0f, 0xff00ff00.toInt())) + .put(Vertex(cos(a2).toFloat(), sin(a2).toFloat(), 0.0f, 0xff0000ff.toInt())) + .flip() + + triangleVertexBuffer = VertexBuffer.Builder() + .bufferCount(1) + .vertexCount(vertexCount) + .attribute(VertexAttribute.POSITION, 0, AttributeType.FLOAT3, 0, vertexSize) + .attribute(VertexAttribute.COLOR, 0, AttributeType.UBYTE4, 3 * floatSize, vertexSize) + .normalized(VertexAttribute.COLOR) + .build(engine) + triangleVertexBuffer.setBufferAt(engine, 0, vertexData) + + val indexData = ByteBuffer.allocate(vertexCount * shortSize) + .order(ByteOrder.nativeOrder()) + .putShort(0) + .putShort(1) + .putShort(2) + .flip() + + triangleIndexBuffer = IndexBuffer.Builder() + .indexCount(3) + .bufferType(IndexBuffer.Builder.IndexType.USHORT) + .build(engine) + triangleIndexBuffer.setBuffer(engine, indexData) + } + + private fun createQuadMesh() { + val floatSize = 4 + val shortSize = 2 + val vertexSize = (2 * floatSize) + (2 * floatSize) // position + UV + + data class Vertex(val x: Float, val y: Float, val u: Float, val v: Float) + fun ByteBuffer.put(v: Vertex): ByteBuffer { + putFloat(v.x) + putFloat(v.y) + putFloat(v.u) + putFloat(v.v) + return this + } + + val vertexCount = 4 + val vertexData = ByteBuffer.allocate(vertexCount * vertexSize) + .order(ByteOrder.nativeOrder()) + .put(Vertex(-1.0f, -1.0f, 0.0f, 0.0f)) + .put(Vertex( 1.0f, -1.0f, 1.0f, 0.0f)) + .put(Vertex( 1.0f, 1.0f, 1.0f, 1.0f)) + .put(Vertex(-1.0f, 1.0f, 0.0f, 1.0f)) + .flip() + + quadVertexBuffer = VertexBuffer.Builder() + .bufferCount(1) + .vertexCount(vertexCount) + .attribute(VertexAttribute.POSITION, 0, AttributeType.FLOAT2, 0, vertexSize) + .attribute(VertexAttribute.UV0, 0, AttributeType.FLOAT2, 2 * floatSize, vertexSize) + .build(engine) + quadVertexBuffer.setBufferAt(engine, 0, vertexData) + + val indexData = ByteBuffer.allocate(6 * shortSize) + .order(ByteOrder.nativeOrder()) + .putShort(0).putShort(1).putShort(2) + .putShort(0).putShort(2).putShort(3) + .flip() + + quadIndexBuffer = IndexBuffer.Builder() + .indexCount(6) + .bufferType(IndexBuffer.Builder.IndexType.USHORT) + .build(engine) + quadIndexBuffer.setBuffer(engine, indexData) + } + + private fun startAnimation() { + animator.interpolator = LinearInterpolator() + animator.duration = 4000 + animator.repeatMode = ValueAnimator.RESTART + animator.repeatCount = ValueAnimator.INFINITE + animator.addUpdateListener { a -> + val transformMatrix = FloatArray(16) + Matrix.setRotateM(transformMatrix, 0, -(a.animatedValue as Float), 0.0f, 0.0f, 1.0f) + val tcm = engine.transformManager + tcm.setTransform(tcm.getInstance(triangleRenderable), transformMatrix) + } + animator.start() + } + + override fun onResume() { + super.onResume() + choreographer.postFrameCallback(frameScheduler) + animator.start() + } + + override fun onPause() { + super.onPause() + choreographer.removeFrameCallback(frameScheduler) + animator.cancel() + } + + override fun onDestroy() { + super.onDestroy() + choreographer.removeFrameCallback(frameScheduler) + animator.cancel() + uiHelper.detach() + + // Destroy all renderables. + scene.remove(triangleRenderable) + scene.remove(quadRenderable) + + // Destroy all resources. + engine.destroyEntity(triangleRenderable) + engine.destroyEntity(quadRenderable) + engine.destroyRenderer(renderer) + engine.destroyVertexBuffer(triangleVertexBuffer) + engine.destroyIndexBuffer(triangleIndexBuffer) + engine.destroyVertexBuffer(quadVertexBuffer) + engine.destroyIndexBuffer(quadIndexBuffer) + engine.destroyMaterial(triangleMaterial) + engine.destroyMaterial(texturedMaterial) + engine.destroyView(view) + engine.destroyView(offscreenView) + engine.destroyScene(scene) + engine.destroyCameraComponent(camera.entity) + engine.destroyCameraComponent(offscreenCamera.entity) + renderTarget?.let { engine.destroyRenderTarget(it) } + texture?.let { engine.destroyTexture(it) } + hardwareBuffer?.close() + + val entityManager = EntityManager.get() + entityManager.destroy(triangleRenderable) + entityManager.destroy(quadRenderable) + entityManager.destroy(camera.entity) + entityManager.destroy(offscreenCamera.entity) + + engine.destroy() + } + + inner class FrameCallback : Choreographer.FrameCallback { + override fun doFrame(frameTimeNanos: Long) { + choreographer.postFrameCallback(this) + if (uiHelper.isReadyToRender) { + if (renderer.beginFrame(swapChain!!, frameTimeNanos)) { + // Render the triangle to the texture. + renderer.render(offscreenView) + // Render the quad to the screen. + renderer.render(view) + renderer.endFrame() + } + } + } + } + + inner class SurfaceCallback : UiHelper.RendererCallback { + override fun onNativeWindowChanged(surface: Surface) { + swapChain?.let { engine.destroySwapChain(it) } + swapChain = engine.createSwapChain(surface, uiHelper.swapChainFlags) + displayHelper.attach(renderer, surfaceView.display) + } + + override fun onDetachedFromSurface() { + displayHelper.detach() + swapChain?.let { + engine.destroySwapChain(it) + engine.flushAndWait() + swapChain = null + } + } + + override fun onResized(width: Int, height: Int) { + // On-screen camera + val zoom = 1.0 + val aspect = width.toDouble() / height.toDouble() + camera.setProjection(Camera.Projection.ORTHO, -aspect * zoom, aspect * zoom, -zoom, zoom, 0.0, 10.0) + view.viewport = Viewport(0, 0, width, height) + + // Off-screen camera + val offscreenZoom = 1.5 + offscreenCamera.setProjection(Camera.Projection.ORTHO, + -aspect * offscreenZoom, aspect * offscreenZoom, + -offscreenZoom, offscreenZoom, 0.0, 10.0) + offscreenView.viewport = Viewport(0, 0, width, height) + + // If we have a render target, destroy it. + renderTarget?.let { engine.destroyRenderTarget(it) } + texture?.let { engine.destroyTexture(it) } + hardwareBuffer?.close() + + // Create a new render target. + hardwareBuffer = HardwareBuffer.create(width, height, + HardwareBuffer.RGBA_8888, 1, + HardwareBuffer.USAGE_GPU_SAMPLED_IMAGE or HardwareBuffer.USAGE_GPU_COLOR_OUTPUT) + + texture = Texture.Builder() + .width(width) + .height(height) + .usage(Texture.Usage.COLOR_ATTACHMENT or Texture.Usage.SAMPLEABLE) + .sampler(Texture.Sampler.SAMPLER_EXTERNAL) + .format(Texture.InternalFormat.RGBA8) + .external() + .build(engine) + + texture!!.setExternalImage(engine, hardwareBuffer!!) + + renderTarget = RenderTarget.Builder() + .texture(RenderTarget.AttachmentPoint.COLOR, texture!!) + .build(engine) + + offscreenView.renderTarget = renderTarget + + // Set the texture on the quad material. + texturedMaterial.defaultInstance.setParameter("texture", texture!!, + TextureSampler(TextureSampler.MinFilter.LINEAR, TextureSampler.MagFilter.LINEAR, + TextureSampler.WrapMode.CLAMP_TO_EDGE)) + + FilamentHelper.synchronizePendingFrames(engine) + } + } + + private fun readUncompressedAsset(assetName: String): ByteBuffer { + assets.openFd(assetName).use { fd -> + val input = fd.createInputStream() + val dst = ByteBuffer.allocate(fd.length.toInt()) + val src = Channels.newChannel(input) + src.read(dst) + src.close() + return dst.apply { rewind() } + } + } +} diff --git a/android/samples/sample-texture-target/src/main/materials/baked_color.mat b/android/samples/sample-texture-target/src/main/materials/baked_color.mat new file mode 100644 index 0000000000..364c94cfeb --- /dev/null +++ b/android/samples/sample-texture-target/src/main/materials/baked_color.mat @@ -0,0 +1,18 @@ +material { + name : baked_color, + shadingModel : unlit, + requires : [ + color + ] +} + +fragment { + void material(inout MaterialInputs material) { + // You must always call the prepareMaterial() function + prepareMaterial(material); + + // We set the material's color to the color interpolated from + // the model's vertices + material.baseColor = getColor(); + } +} diff --git a/android/samples/sample-texture-target/src/main/materials/textured.mat b/android/samples/sample-texture-target/src/main/materials/textured.mat new file mode 100644 index 0000000000..5207b78852 --- /dev/null +++ b/android/samples/sample-texture-target/src/main/materials/textured.mat @@ -0,0 +1,20 @@ +material { + name : textured, + shadingModel : unlit, + parameters : [ + { + type : samplerExternal, + name : texture + } + ], + requires: [ + uv0 + ] +} + +fragment { + void material(inout MaterialInputs material) { + prepareMaterial(material); + material.baseColor = texture(materialParams_texture, getUV0()); + } +} diff --git a/android/samples/sample-texture-target/src/main/res/drawable-v24/ic_launcher_foreground.xml b/android/samples/sample-texture-target/src/main/res/drawable-v24/ic_launcher_foreground.xml new file mode 100644 index 0000000000..b1517edf49 --- /dev/null +++ b/android/samples/sample-texture-target/src/main/res/drawable-v24/ic_launcher_foreground.xml @@ -0,0 +1,34 @@ + + + + + + + + + + + diff --git a/android/samples/sample-texture-target/src/main/res/drawable/ic_launcher_background.xml b/android/samples/sample-texture-target/src/main/res/drawable/ic_launcher_background.xml new file mode 100644 index 0000000000..88e31872fe --- /dev/null +++ b/android/samples/sample-texture-target/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,171 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/android/samples/sample-texture-target/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/android/samples/sample-texture-target/src/main/res/mipmap-anydpi-v26/ic_launcher.xml new file mode 100644 index 0000000000..6d5e5d094c --- /dev/null +++ b/android/samples/sample-texture-target/src/main/res/mipmap-anydpi-v26/ic_launcher.xml @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git 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b/android/samples/sample-texture-target/src/main/res/values/colors.xml new file mode 100644 index 0000000000..5a077b3a78 --- /dev/null +++ b/android/samples/sample-texture-target/src/main/res/values/colors.xml @@ -0,0 +1,6 @@ + + + #3F51B5 + #303F9F + #FF4081 + diff --git a/android/samples/sample-texture-target/src/main/res/values/strings.xml b/android/samples/sample-texture-target/src/main/res/values/strings.xml new file mode 100644 index 0000000000..62c2e46fd7 --- /dev/null +++ b/android/samples/sample-texture-target/src/main/res/values/strings.xml @@ -0,0 +1,3 @@ + + Texture Target + diff --git a/android/samples/sample-texture-target/src/main/res/values/styles.xml b/android/samples/sample-texture-target/src/main/res/values/styles.xml new file mode 100644 index 0000000000..a7a06158ff --- /dev/null +++ b/android/samples/sample-texture-target/src/main/res/values/styles.xml @@ -0,0 +1,8 @@ + + + + + + diff --git a/android/settings.gradle b/android/settings.gradle index 694e340df2..227c58af75 100644 --- a/android/settings.gradle +++ b/android/settings.gradle @@ -17,6 +17,7 @@ include ':samples:sample-multi-view' include ':samples:sample-page-curl' include ':samples:sample-stream-test' include ':samples:sample-texture-view' +include ':samples:sample-texture-target' include ':samples:sample-textured-object' include ':samples:sample-transparent-view' diff --git a/filament/backend/src/opengl/OpenGLDriver.cpp b/filament/backend/src/opengl/OpenGLDriver.cpp index 18c1674752..7d9f36c4ff 100644 --- a/filament/backend/src/opengl/OpenGLDriver.cpp +++ b/filament/backend/src/opengl/OpenGLDriver.cpp @@ -1344,7 +1344,6 @@ void OpenGLDriver::framebufferTexture(TargetBufferInfo const& binfo, GLTexture* t = handle_cast(binfo.handle); assert_invariant(t); - assert_invariant(t->target != SamplerType::SAMPLER_EXTERNAL); assert_invariant(rt->width <= valueForLevel(binfo.level, t->width) && rt->height <= valueForLevel(binfo.level, t->height)); @@ -1418,6 +1417,7 @@ void OpenGLDriver::framebufferTexture(TargetBufferInfo const& binfo, case SamplerType::SAMPLER_3D: case SamplerType::SAMPLER_2D_ARRAY: case SamplerType::SAMPLER_CUBEMAP_ARRAY: + case SamplerType::SAMPLER_EXTERNAL: // this could be GL_TEXTURE_2D_MULTISAMPLE or GL_TEXTURE_2D_ARRAY target = t->gl.target; // note: multi-sampled textures can't have mipmaps @@ -1426,10 +1426,6 @@ void OpenGLDriver::framebufferTexture(TargetBufferInfo const& binfo, target = getCubemapTarget(binfo.layer); // note: cubemaps can't be multi-sampled break; - case SamplerType::SAMPLER_EXTERNAL: - // This is an error. We have asserted in debug build. - target = t->gl.target; - break; } } @@ -1458,6 +1454,7 @@ void OpenGLDriver::framebufferTexture(TargetBufferInfo const& binfo, case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: case GL_TEXTURE_2D: + case GL_TEXTURE_EXTERNAL_OES: #if defined(BACKEND_OPENGL_LEVEL_GLES31) case GL_TEXTURE_2D_MULTISAMPLE: #endif @@ -1465,7 +1462,9 @@ void OpenGLDriver::framebufferTexture(TargetBufferInfo const& binfo, glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, target, t->gl.id, binfo.level); } else { - assert_invariant(target == GL_TEXTURE_2D); + // in principle, it's possible to have a renderbuffer that's external + // (it filament this never happens, currently) + assert_invariant(target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES); glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, t->gl.id); } diff --git a/filament/include/filament/Skybox.h b/filament/include/filament/Skybox.h index ce203aae6a..bacd0acb56 100644 --- a/filament/include/filament/Skybox.h +++ b/filament/include/filament/Skybox.h @@ -131,6 +131,20 @@ public: */ Builder& color(math::float4 color) noexcept; + /** + * Set the rendering priority of the Skybox. By default, it is set to the lowest + * priority (7) such that the Skybox is always rendered after the opaque objects, + * to reduce overdraw when depth culling is enabled. + * + * @param priority clamped to the range [0..7], defaults to 4; 7 is lowest priority + * (rendered last). + * + * @return Builder reference for chaining calls. + * + * @see RenderableManager::Builder::priority() + */ + Builder& priority(uint8_t priority) noexcept; + /** * Creates the Skybox object and returns a pointer to it. * diff --git a/filament/src/details/MaterialInstance.cpp b/filament/src/details/MaterialInstance.cpp index 015af420dc..96678bf15d 100644 --- a/filament/src/details/MaterialInstance.cpp +++ b/filament/src/details/MaterialInstance.cpp @@ -298,6 +298,10 @@ void FMaterialInstance::setParameterImpl(std::string_view const name, TextureType const textureType = texture->getTextureType(); SamplerType const samplerType = texture->getTarget(); auto const& featureFlags = mMaterial->getEngine().features.engine.debug; + + FILAMENT_CHECK_PRECONDITION(texture->getUsage() & TextureUsage::SAMPLEABLE) + << "Texture for parameter \"" << name << "\"" << " is not SAMPLEABLE"; + FILAMENT_FLAG_GUARDED_CHECK_PRECONDITION( DescriptorSet::isTextureCompatibleWithDescriptor( textureType, samplerType, descriptorType), diff --git a/filament/src/details/RenderTarget.cpp b/filament/src/details/RenderTarget.cpp index c327da18ca..0c86bd59af 100644 --- a/filament/src/details/RenderTarget.cpp +++ b/filament/src/details/RenderTarget.cpp @@ -98,15 +98,11 @@ RenderTarget* RenderTarget::Builder::build(Engine& engine) { if (color.texture) { FILAMENT_CHECK_PRECONDITION(color.texture->getUsage() & TextureUsage::COLOR_ATTACHMENT) << "Texture usage must contain COLOR_ATTACHMENT"; - FILAMENT_CHECK_PRECONDITION(color.texture->getTarget() != Texture::Sampler::SAMPLER_EXTERNAL) - << "Color attachment can't be an external texture"; } if (depth.texture) { FILAMENT_CHECK_PRECONDITION(depth.texture->getUsage() & TextureUsage::DEPTH_ATTACHMENT) << "Texture usage must contain DEPTH_ATTACHMENT"; - FILAMENT_CHECK_PRECONDITION(depth.texture->getTarget() != Texture::Sampler::SAMPLER_EXTERNAL) - << "Depth attachment can't be an external texture"; } const size_t maxDrawBuffers = downcast(engine).getDriverApi().getMaxDrawBuffers(); diff --git a/filament/src/details/Skybox.cpp b/filament/src/details/Skybox.cpp index 2de015dfb8..2a07cb33e9 100644 --- a/filament/src/details/Skybox.cpp +++ b/filament/src/details/Skybox.cpp @@ -51,6 +51,7 @@ struct Skybox::BuilderDetails { float4 mColor{0, 0, 0, 1}; float mIntensity = FIndirectLight::DEFAULT_INTENSITY; bool mShowSun = false; + uint8_t mPriority = 7; }; using BuilderType = Skybox; @@ -77,13 +78,18 @@ Skybox::Builder& Skybox::Builder::color(float4 const color) noexcept { return *this; } +Skybox::Builder& Skybox::Builder::priority(uint8_t const priority) noexcept { + mImpl->mPriority = priority; + return *this; +} + Skybox::Builder& Skybox::Builder::showSun(bool const show) noexcept { mImpl->mShowSun = show; return *this; } Skybox* Skybox::Builder::build(Engine& engine) { - FTexture* cubemap = downcast(mImpl->mEnvironmentMap); + FTexture const* cubemap = downcast(mImpl->mEnvironmentMap); FILAMENT_CHECK_PRECONDITION(!cubemap || cubemap->isCubemap()) << "environment maps must be a cubemap"; @@ -118,7 +124,7 @@ FSkybox::FSkybox(FEngine& engine, const Builder& builder) noexcept .material(0, mSkyboxMaterialInstance) .castShadows(false) .receiveShadows(false) - .priority(0x7) + .priority(builder->mPriority) .culling(false) .build(engine, mSkybox); } diff --git a/filament/src/details/Texture.cpp b/filament/src/details/Texture.cpp index 12587a51cc..dc0fd7dd64 100644 --- a/filament/src/details/Texture.cpp +++ b/filament/src/details/Texture.cpp @@ -219,7 +219,7 @@ Texture* Texture::Builder::build(Engine& engine) { << "SamplerType " << uint8_t(mImpl->mTarget) << " not support at feature level " << uint8_t(engine.getActiveFeatureLevel()); - // SAMPLER_EXTERNAL implies imported. + // SAMPLER_EXTERNAL implies external textures. if (mImpl->mTarget == SamplerType::SAMPLER_EXTERNAL) { mImpl->mExternal = true; } @@ -229,7 +229,6 @@ Texture* Texture::Builder::build(Engine& engine) { case SamplerType::SAMPLER_2D: case SamplerType::SAMPLER_2D_ARRAY: case SamplerType::SAMPLER_CUBEMAP: - case SamplerType::SAMPLER_EXTERNAL: case SamplerType::SAMPLER_CUBEMAP_ARRAY: maxLevelCount = FTexture::maxLevelCount(mImpl->mWidth, mImpl->mHeight); break; @@ -237,11 +236,19 @@ Texture* Texture::Builder::build(Engine& engine) { maxLevelCount = FTexture::maxLevelCount(std::max( { mImpl->mWidth, mImpl->mHeight, mImpl->mDepth })); break; + case SamplerType::SAMPLER_EXTERNAL: + // external samplers can't mipmap + maxLevelCount = 1; + break; } mImpl->mLevels = std::min(mImpl->mLevels, maxLevelCount); if (mImpl->mUsage == TextureUsage::NONE) { mImpl->mUsage = TextureUsage::DEFAULT; + if (mImpl->mExternal) { + // external textures can't be uploadable + mImpl->mUsage = TextureUsage::SAMPLEABLE; + } } auto const& featureFlags = downcast(engine).features.engine.debug; @@ -662,7 +669,6 @@ bool FTexture::textureHandleCanMutate() const noexcept { } void FTexture::updateLodRange(uint8_t const baseLevel, uint8_t const levelCount) noexcept { - assert_invariant(!mExternal); if (any(mUsage & Usage::SAMPLEABLE) && mLevelCount > 1) { auto& range = mLodRange; uint8_t const last = int8_t(baseLevel + levelCount); diff --git a/web/filament-js/jsbindings.cpp b/web/filament-js/jsbindings.cpp index 5d8a408566..009a9382e2 100644 --- a/web/filament-js/jsbindings.cpp +++ b/web/filament-js/jsbindings.cpp @@ -1598,6 +1598,8 @@ class_("Skybox$Builder") .function("_build", EMBIND_LAMBDA(Skybox*, (SkyBuilder* builder, Engine* engine), { return builder->build(*engine); }), allow_raw_pointers()) + .BUILDER_FUNCTION("priority", SkyBuilder, (SkyBuilder* builder, uint8_t priority), { + return &builder->priority(priority); }) .BUILDER_FUNCTION("color", SkyBuilder, (SkyBuilder* builder, filament::math::float4 color), { return &builder->color(color); }) .BUILDER_FUNCTION("environment", SkyBuilder, (SkyBuilder* builder, Texture* cubemap), {