GraphicBuffer.cpp revision 253f2c213f6ecda63b6872aee77bd30d5ec07c82
13b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy/* 23b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * Copyright (C) 2013 The Android Open Source Project 33b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * 43b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 53b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * you may not use this file except in compliance with the License. 63b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * You may obtain a copy of the License at 73b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * 83b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 93b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * 103b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * Unless required by applicable law or agreed to in writing, software 113b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 123b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * See the License for the specific language governing permissions and 143b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy * limitations under the License. 153b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy */ 163b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 173b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#define LOG_TAG "GraphicBuffer" 183b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 193b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include "jni.h" 203b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include "JNIHelp.h" 213b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 223b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include "android_os_Parcel.h" 233b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include "android_view_GraphicBuffer.h" 245c3d927e17e98e8fd4a9f3c86f7f4def0bcfa816Florin Malita#include "android/graphics/GraphicsJNI.h" 253b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 263b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <android_runtime/AndroidRuntime.h> 273b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 283b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <binder/Parcel.h> 293b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 303b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <ui/GraphicBuffer.h> 313b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <ui/PixelFormat.h> 323b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 333b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <gui/IGraphicBufferAlloc.h> 343b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <gui/ISurfaceComposer.h> 353b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 363b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <SkCanvas.h> 373b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <SkBitmap.h> 383b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 393b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#include <private/gui/ComposerService.h> 403b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 41987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe#include "core_jni_helpers.h" 42987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe 433b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guynamespace android { 443b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 453b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 463b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// Defines 473b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 483b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 493b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// Debug 50ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampestatic const bool kDebugGraphicBuffer = false; 513b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 52cef190de850f163dd4b95d667a8d46d46e860363Chih-Hung Hsieh#define LOCK_CANVAS_USAGE (GraphicBuffer::USAGE_SW_READ_OFTEN | GraphicBuffer::USAGE_SW_WRITE_OFTEN) 533b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 543b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 553b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// JNI Helpers 563b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 573b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 583b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guystatic struct { 593b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jfieldID mNativeObject; 603b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} gGraphicBufferClassInfo; 613b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 623b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guystatic struct { 633b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jmethodID set; 643b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jfieldID left; 653b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jfieldID top; 663b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jfieldID right; 673b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jfieldID bottom; 683b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} gRectClassInfo; 693b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 703b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#define GET_INT(object, field) \ 713b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy env->GetIntField(object, field) 723b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 733b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#define SET_INT(object, field, value) \ 743b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy env->SetIntField(object, field, value) 753b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 7636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat#define GET_LONG(object, field) \ 7736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat env->GetLongField(object, field) 7836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat 7936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat#define SET_LONG(object, field, value) \ 8036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat env->SetLongField(object, field, value) 8136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat 823b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy#define INVOKEV(object, method, ...) \ 833b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy env->CallVoidMethod(object, method, __VA_ARGS__) 843b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 853b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 863b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// Types 873b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 883b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 893b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guyclass GraphicBufferWrapper { 903b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guypublic: 91c6baf563ba6aa207a48317c177b29f1d2b70cf3dChih-Hung Hsieh explicit GraphicBufferWrapper(const sp<GraphicBuffer>& buffer): buffer(buffer) { 923b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 933b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 943b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<GraphicBuffer> buffer; 953b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy}; 963b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 973b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 983b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// GraphicBuffer lifecycle 993b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 1003b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 10136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhatstatic jlong android_view_GraphiceBuffer_create(JNIEnv* env, jobject clazz, 1023b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jint width, jint height, jint format, jint usage) { 1033b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1043b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<ISurfaceComposer> composer(ComposerService::getComposerService()); 1053b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<IGraphicBufferAlloc> alloc(composer->createGraphicBufferAlloc()); 1063b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (alloc == NULL) { 107ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe if (kDebugGraphicBuffer) { 108ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe ALOGW("createGraphicBufferAlloc() failed in GraphicBuffer.create()"); 109ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe } 1103b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy return NULL; 1113b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1123b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1133b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy status_t error; 1143b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<GraphicBuffer> buffer(alloc->createGraphicBuffer(width, height, format, usage, &error)); 1153b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (buffer == NULL) { 116ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe if (kDebugGraphicBuffer) { 117ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe ALOGW("createGraphicBuffer() failed in GraphicBuffer.create()"); 118ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe } 1193b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy return NULL; 1203b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1213b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 12236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat GraphicBufferWrapper* wrapper = new GraphicBufferWrapper(buffer); 12336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return reinterpret_cast<jlong>(wrapper); 1243b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 1253b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1263b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guystatic void android_view_GraphiceBuffer_destroy(JNIEnv* env, jobject clazz, 12736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat jlong wrapperHandle) { 12836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat GraphicBufferWrapper* wrapper = 12936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat reinterpret_cast<GraphicBufferWrapper*>(wrapperHandle); 1303b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy delete wrapper; 1313b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 1323b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1333b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 1343b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// Canvas management 1353b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 1363b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 137b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reedstatic inline SkColorType convertPixelFormat(int32_t format) { 1383b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy switch (format) { 1393b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy case PIXEL_FORMAT_RGBA_8888: 140b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed return kN32_SkColorType; 1413b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy case PIXEL_FORMAT_RGBX_8888: 142b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed return kN32_SkColorType; 1433b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy case PIXEL_FORMAT_RGB_565: 144b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed return kRGB_565_SkColorType; 1453b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy default: 146b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed return kUnknown_SkColorType; 1473b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1483b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 1493b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1503b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guystatic jboolean android_view_GraphicBuffer_lockCanvas(JNIEnv* env, jobject, 15136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat jlong wrapperHandle, jobject canvas, jobject dirtyRect) { 1523b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 15336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat GraphicBufferWrapper* wrapper = 15436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat reinterpret_cast<GraphicBufferWrapper*>(wrapperHandle); 1553b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (!wrapper) { 15636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return JNI_FALSE; 1573b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1583b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1593b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<GraphicBuffer> buffer(wrapper->buffer); 1603b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 161827029228667507c69c7a430798d7ac88e438c33Pablo Ceballos Rect rect(Rect::EMPTY_RECT); 1623b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (dirtyRect) { 1633b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy rect.left = GET_INT(dirtyRect, gRectClassInfo.left); 1643b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy rect.top = GET_INT(dirtyRect, gRectClassInfo.top); 1653b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy rect.right = GET_INT(dirtyRect, gRectClassInfo.right); 1663b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy rect.bottom = GET_INT(dirtyRect, gRectClassInfo.bottom); 1673b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } else { 1683b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy rect.set(Rect(buffer->getWidth(), buffer->getHeight())); 1693b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1703b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1713b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy void* bits = NULL; 1723b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy status_t status = buffer->lock(LOCK_CANVAS_USAGE, rect, &bits); 1733b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 17436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat if (status) return JNI_FALSE; 1753b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (!bits) { 1763b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy buffer->unlock(); 17736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return JNI_FALSE; 1783b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1793b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1803b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy ssize_t bytesCount = buffer->getStride() * bytesPerPixel(buffer->getPixelFormat()); 1813b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1823b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy SkBitmap bitmap; 183b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed bitmap.setInfo(SkImageInfo::Make(buffer->getWidth(), buffer->getHeight(), 184b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed convertPixelFormat(buffer->getPixelFormat()), 185253f2c213f6ecda63b6872aee77bd30d5ec07c82Romain Guy kPremul_SkAlphaType, 186253f2c213f6ecda63b6872aee77bd30d5ec07c82Romain Guy GraphicsJNI::defaultColorSpace()), 187b933055cf3f7f8ea89bfd3bc9c37a3891ff7310aMike Reed bytesCount); 1883b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1893b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (buffer->getWidth() > 0 && buffer->getHeight() > 0) { 1903b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy bitmap.setPixels(bits); 1913b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } else { 1923b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy bitmap.setPixels(NULL); 1933b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 1943b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 195c1b33d665c8caf5760f68c45c6ca0baa649b832aJohn Reck Canvas* nativeCanvas = GraphicsJNI::getNativeCanvas(env, canvas); 196c1b33d665c8caf5760f68c45c6ca0baa649b832aJohn Reck nativeCanvas->setBitmap(bitmap); 197c1b33d665c8caf5760f68c45c6ca0baa649b832aJohn Reck nativeCanvas->clipRect(rect.left, rect.top, rect.right, rect.bottom); 1983b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 1993b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (dirtyRect) { 2003b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy INVOKEV(dirtyRect, gRectClassInfo.set, 2013b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy int(rect.left), int(rect.top), int(rect.right), int(rect.bottom)); 2023b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 2033b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 20436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return JNI_TRUE; 2053b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 2063b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2073b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guystatic jboolean android_view_GraphicBuffer_unlockCanvasAndPost(JNIEnv* env, jobject, 20836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat jlong wrapperHandle, jobject canvas) { 2093b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 21036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat GraphicBufferWrapper* wrapper = 21136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat reinterpret_cast<GraphicBufferWrapper*>(wrapperHandle); 212c1b33d665c8caf5760f68c45c6ca0baa649b832aJohn Reck Canvas* nativeCanvas = GraphicsJNI::getNativeCanvas(env, canvas); 213c1b33d665c8caf5760f68c45c6ca0baa649b832aJohn Reck nativeCanvas->setBitmap(SkBitmap()); 2143b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2153b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (wrapper) { 2163b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy status_t status = wrapper->buffer->unlock(); 21736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return status == 0 ? JNI_TRUE : JNI_FALSE; 2183b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 2193b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 22036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return JNI_FALSE; 2213b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 2223b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2233b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 2243b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// Serialization 2253b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 2263b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2273b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guystatic void android_view_GraphiceBuffer_write(JNIEnv* env, jobject clazz, 22836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat jlong wrapperHandle, jobject dest) { 22936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat GraphicBufferWrapper* wrapper = 23036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat reinterpret_cast<GraphicBufferWrapper*>(wrapperHandle); 2313b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy Parcel* parcel = parcelForJavaObject(env, dest); 2323b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (parcel) { 2333b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy parcel->write(*wrapper->buffer); 2343b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 2353b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 2363b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 23736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhatstatic jlong android_view_GraphiceBuffer_read(JNIEnv* env, jobject clazz, 2383b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy jobject in) { 2393b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2403b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy Parcel* parcel = parcelForJavaObject(env, in); 2413b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (parcel) { 2423b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<GraphicBuffer> buffer = new GraphicBuffer(); 2433b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy parcel->read(*buffer); 24436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat return reinterpret_cast<jlong>(new GraphicBufferWrapper(buffer)); 2453b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 2463b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2473b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy return NULL; 2483b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 2493b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2503b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 2513b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// External helpers 2523b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 2533b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2543b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guysp<GraphicBuffer> graphicBufferForJavaObject(JNIEnv* env, jobject obj) { 2553b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (obj) { 25636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat jlong nativeObject = env->GetLongField(obj, gGraphicBufferClassInfo.mNativeObject); 2573b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy GraphicBufferWrapper* wrapper = (GraphicBufferWrapper*) nativeObject; 2583b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy if (wrapper != NULL) { 2593b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy sp<GraphicBuffer> buffer(wrapper->buffer); 2603b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy return buffer; 2613b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 2623b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy } 2633b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy return NULL; 2643b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 2653b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2663b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 2673b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// JNI Glue 2683b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy// ---------------------------------------------------------------------------- 2693b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2703b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guyconst char* const kClassPathName = "android/view/GraphicBuffer"; 2713b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 27276f6a86de25e1bf74717e047e55fd44b089673f3Daniel Micaystatic const JNINativeMethod gMethods[] = { 27336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat { "nCreateGraphicBuffer", "(IIII)J", (void*) android_view_GraphiceBuffer_create }, 27436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat { "nDestroyGraphicBuffer", "(J)V", (void*) android_view_GraphiceBuffer_destroy }, 2753b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 27636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat { "nWriteGraphicBufferToParcel", "(JLandroid/os/Parcel;)V", 2773b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy (void*) android_view_GraphiceBuffer_write }, 27836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat { "nReadGraphicBufferFromParcel", "(Landroid/os/Parcel;)J", 2793b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy (void*) android_view_GraphiceBuffer_read }, 2803b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 28136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat { "nLockCanvas", "(JLandroid/graphics/Canvas;Landroid/graphics/Rect;)Z", 2823b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy (void*) android_view_GraphicBuffer_lockCanvas }, 28336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat { "nUnlockCanvasAndPost", "(JLandroid/graphics/Canvas;)Z", 2843b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy (void*) android_view_GraphicBuffer_unlockCanvasAndPost }, 2853b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy}; 2863b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 2873b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guyint register_android_view_GraphicBuffer(JNIEnv* env) { 288987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe jclass clazz = FindClassOrDie(env, "android/view/GraphicBuffer"); 289987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe gGraphicBufferClassInfo.mNativeObject = GetFieldIDOrDie(env, clazz, "mNativeObject", "J"); 290987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe 291987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe clazz = FindClassOrDie(env, "android/graphics/Rect"); 292987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe gRectClassInfo.set = GetMethodIDOrDie(env, clazz, "set", "(IIII)V"); 293987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe gRectClassInfo.left = GetFieldIDOrDie(env, clazz, "left", "I"); 294987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe gRectClassInfo.top = GetFieldIDOrDie(env, clazz, "top", "I"); 295987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe gRectClassInfo.right = GetFieldIDOrDie(env, clazz, "right", "I"); 296987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe gRectClassInfo.bottom = GetFieldIDOrDie(env, clazz, "bottom", "I"); 297987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe 298987f79f60bb1f0a4bcd3ef22e57301c743f0b94fAndreas Gampe return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods)); 2993b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy} 3003b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy 3013b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy}; 302