1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #undef LOG_TAG
18 #define LOG_TAG "HardwareBufferRenderer"
19 #define ATRACE_TAG ATRACE_TAG_VIEW
20
21 #include <GraphicsJNI.h>
22 #include <RootRenderNode.h>
23 #include <TreeInfo.h>
24 #include <android-base/unique_fd.h>
25 #include <android/native_window.h>
26 #include <nativehelper/JNIPlatformHelp.h>
27 #include <renderthread/CanvasContext.h>
28 #include <renderthread/RenderProxy.h>
29 #include <renderthread/RenderThread.h>
30
31 #include "HardwareBufferHelpers.h"
32 #include "JvmErrorReporter.h"
33
34 namespace android {
35
36 using namespace android::uirenderer;
37 using namespace android::uirenderer::renderthread;
38
39 struct {
40 jclass clazz;
41 jmethodID invokeRenderCallback;
42 } gHardwareBufferRendererClassInfo;
43
createRenderCallback(JNIEnv * env,jobject releaseCallback)44 static RenderCallback createRenderCallback(JNIEnv* env, jobject releaseCallback) {
45 if (releaseCallback == nullptr) return nullptr;
46
47 JavaVM* vm = nullptr;
48 LOG_ALWAYS_FATAL_IF(env->GetJavaVM(&vm) != JNI_OK, "Unable to get Java VM");
49 auto globalCallbackRef =
50 std::make_shared<JGlobalRefHolder>(vm, env->NewGlobalRef(releaseCallback));
51 return [globalCallbackRef](android::base::unique_fd&& fd, int status) {
52 globalCallbackRef->env()->CallStaticVoidMethod(
53 gHardwareBufferRendererClassInfo.clazz,
54 gHardwareBufferRendererClassInfo.invokeRenderCallback, globalCallbackRef->object(),
55 reinterpret_cast<jint>(fd.release()), reinterpret_cast<jint>(status));
56 };
57 }
58
android_graphics_HardwareBufferRenderer_createRootNode(JNIEnv * env,jobject)59 static long android_graphics_HardwareBufferRenderer_createRootNode(JNIEnv* env, jobject) {
60 auto* node = new RootRenderNode(std::make_unique<JvmErrorReporter>(env));
61 node->incStrong(nullptr);
62 node->setName("RootRenderNode");
63 return reinterpret_cast<jlong>(node);
64 }
65
android_graphics_hardwareBufferRenderer_destroyRootNode(JNIEnv *,jobject,jlong renderNodePtr)66 static void android_graphics_hardwareBufferRenderer_destroyRootNode(JNIEnv*, jobject,
67 jlong renderNodePtr) {
68 auto* node = reinterpret_cast<RootRenderNode*>(renderNodePtr);
69 node->destroy();
70 }
71
android_graphics_HardwareBufferRenderer_create(JNIEnv * env,jobject,jobject buffer,jlong renderNodePtr)72 static long android_graphics_HardwareBufferRenderer_create(JNIEnv* env, jobject, jobject buffer,
73 jlong renderNodePtr) {
74 auto* hardwareBuffer = HardwareBufferHelpers::AHardwareBuffer_fromHardwareBuffer(env, buffer);
75 auto* rootRenderNode = reinterpret_cast<RootRenderNode*>(renderNodePtr);
76 ContextFactoryImpl factory(rootRenderNode);
77 auto* proxy = new RenderProxy(false, rootRenderNode, &factory);
78 proxy->setHardwareBuffer(hardwareBuffer);
79 return (jlong)proxy;
80 }
81
HardwareBufferRenderer_destroy(jlong renderProxy)82 static void HardwareBufferRenderer_destroy(jlong renderProxy) {
83 auto* proxy = reinterpret_cast<RenderProxy*>(renderProxy);
84 delete proxy;
85 }
86
createMatrixFromBufferTransform(SkScalar width,SkScalar height,int transform)87 static SkMatrix createMatrixFromBufferTransform(SkScalar width, SkScalar height, int transform) {
88 switch (transform) {
89 case ANATIVEWINDOW_TRANSFORM_ROTATE_90:
90 return SkMatrix::MakeAll(0, -1, height, 1, 0, 0, 0, 0, 1);
91 case ANATIVEWINDOW_TRANSFORM_ROTATE_180:
92 return SkMatrix::MakeAll(-1, 0, width, 0, -1, height, 0, 0, 1);
93 case ANATIVEWINDOW_TRANSFORM_ROTATE_270:
94 return SkMatrix::MakeAll(0, 1, 0, -1, 0, width, 0, 0, 1);
95 default:
96 ALOGE("Invalid transform provided. Transform should be validated from"
97 "the java side. Leveraging identity transform as a fallback");
98 [[fallthrough]];
99 case ANATIVEWINDOW_TRANSFORM_IDENTITY:
100 return SkMatrix::I();
101 }
102 }
103
android_graphics_HardwareBufferRenderer_render(JNIEnv * env,jobject,jlong renderProxy,jint transform,jint width,jint height,jlong colorspacePtr,jobject consumer)104 static int android_graphics_HardwareBufferRenderer_render(JNIEnv* env, jobject, jlong renderProxy,
105 jint transform, jint width, jint height,
106 jlong colorspacePtr, jobject consumer) {
107 auto* proxy = reinterpret_cast<RenderProxy*>(renderProxy);
108 auto skWidth = static_cast<SkScalar>(width);
109 auto skHeight = static_cast<SkScalar>(height);
110 auto matrix = createMatrixFromBufferTransform(skWidth, skHeight, transform);
111 auto colorSpace = GraphicsJNI::getNativeColorSpace(colorspacePtr);
112 proxy->setHardwareBufferRenderParams(HardwareBufferRenderParams(
113 width, height, matrix, colorSpace, createRenderCallback(env, consumer)));
114 nsecs_t vsync = systemTime(SYSTEM_TIME_MONOTONIC);
115 UiFrameInfoBuilder(proxy->frameInfo())
116 .setVsync(vsync, vsync, UiFrameInfoBuilder::INVALID_VSYNC_ID,
117 UiFrameInfoBuilder::UNKNOWN_DEADLINE,
118 UiFrameInfoBuilder::UNKNOWN_FRAME_INTERVAL)
119 .addFlag(FrameInfoFlags::SurfaceCanvas);
120 return proxy->syncAndDrawFrame();
121 }
122
android_graphics_HardwareBufferRenderer_setLightGeometry(JNIEnv *,jobject,jlong renderProxyPtr,jfloat lightX,jfloat lightY,jfloat lightZ,jfloat lightRadius)123 static void android_graphics_HardwareBufferRenderer_setLightGeometry(JNIEnv*, jobject,
124 jlong renderProxyPtr,
125 jfloat lightX, jfloat lightY,
126 jfloat lightZ,
127 jfloat lightRadius) {
128 auto* proxy = reinterpret_cast<RenderProxy*>(renderProxyPtr);
129 proxy->setLightGeometry((Vector3){lightX, lightY, lightZ}, lightRadius);
130 }
131
android_graphics_HardwareBufferRenderer_setLightAlpha(JNIEnv * env,jobject,jlong renderProxyPtr,jfloat ambientShadowAlpha,jfloat spotShadowAlpha)132 static void android_graphics_HardwareBufferRenderer_setLightAlpha(JNIEnv* env, jobject,
133 jlong renderProxyPtr,
134 jfloat ambientShadowAlpha,
135 jfloat spotShadowAlpha) {
136 auto* proxy = reinterpret_cast<RenderProxy*>(renderProxyPtr);
137 proxy->setLightAlpha((uint8_t)(255 * ambientShadowAlpha), (uint8_t)(255 * spotShadowAlpha));
138 }
139
android_graphics_HardwareBufferRenderer_getFinalizer()140 static jlong android_graphics_HardwareBufferRenderer_getFinalizer() {
141 return static_cast<jlong>(reinterpret_cast<uintptr_t>(&HardwareBufferRenderer_destroy));
142 }
143
144 // ----------------------------------------------------------------------------
145 // JNI Glue
146 // ----------------------------------------------------------------------------
147
148 const char* const kClassPathName = "android/graphics/HardwareBufferRenderer";
149
150 static const JNINativeMethod gMethods[] = {
151 {"nCreateHardwareBufferRenderer", "(Landroid/hardware/HardwareBuffer;J)J",
152 (void*)android_graphics_HardwareBufferRenderer_create},
153 {"nRender", "(JIIIJLjava/util/function/Consumer;)I",
154 (void*)android_graphics_HardwareBufferRenderer_render},
155 {"nCreateRootRenderNode", "()J",
156 (void*)android_graphics_HardwareBufferRenderer_createRootNode},
157 {"nSetLightGeometry", "(JFFFF)V",
158 (void*)android_graphics_HardwareBufferRenderer_setLightGeometry},
159 {"nSetLightAlpha", "(JFF)V", (void*)android_graphics_HardwareBufferRenderer_setLightAlpha},
160 {"nGetFinalizer", "()J", (void*)android_graphics_HardwareBufferRenderer_getFinalizer},
161 {"nDestroyRootRenderNode", "(J)V",
162 (void*)android_graphics_hardwareBufferRenderer_destroyRootNode}};
163
register_android_graphics_HardwareBufferRenderer(JNIEnv * env)164 int register_android_graphics_HardwareBufferRenderer(JNIEnv* env) {
165 jclass hardwareBufferRendererClazz =
166 FindClassOrDie(env, "android/graphics/HardwareBufferRenderer");
167 gHardwareBufferRendererClassInfo.clazz =
168 reinterpret_cast<jclass>(env->NewGlobalRef(hardwareBufferRendererClazz));
169 gHardwareBufferRendererClassInfo.invokeRenderCallback =
170 GetStaticMethodIDOrDie(env, hardwareBufferRendererClazz, "invokeRenderCallback",
171 "(Ljava/util/function/Consumer;II)V");
172 HardwareBufferHelpers::init();
173 return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
174 }
175
176 } // namespace android