SurfaceTextureClient.h revision bae774eb20bebd409441b93386b51bccda75f546
18ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis/* 28ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * Copyright (C) 2010 The Android Open Source Project 38ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * 48ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * Licensed under the Apache License, Version 2.0 (the "License"); 58ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * you may not use this file except in compliance with the License. 68ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * You may obtain a copy of the License at 78ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * 88ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * http://www.apache.org/licenses/LICENSE-2.0 98ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * 108ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * Unless required by applicable law or agreed to in writing, software 118ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * distributed under the License is distributed on an "AS IS" BASIS, 128ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * See the License for the specific language governing permissions and 148ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * limitations under the License. 158ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis */ 168ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 178ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#ifndef ANDROID_GUI_SURFACETEXTURECLIENT_H 188ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#define ANDROID_GUI_SURFACETEXTURECLIENT_H 198ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 208ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <gui/ISurfaceTexture.h> 218ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <gui/SurfaceTexture.h> 228ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 238ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <ui/egl/android_natives.h> 248ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 258ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <utils/RefBase.h> 268ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <utils/threads.h> 278ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 288ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennisnamespace android { 298ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 308ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennisclass SurfaceTextureClient 318ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis : public EGLNativeBase<ANativeWindow, SurfaceTextureClient, RefBase> 328ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis{ 338ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennispublic: 348ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis SurfaceTextureClient(const sp<ISurfaceTexture>& surfaceTexture); 358ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 36bae774eb20bebd409441b93386b51bccda75f546Jamie Gennis sp<ISurfaceTexture> getISurfaceTexture() const; 37bae774eb20bebd409441b93386b51bccda75f546Jamie Gennis 388ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennisprivate: 398ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 408ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // can't be copied 418ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis SurfaceTextureClient& operator = (const SurfaceTextureClient& rhs); 428ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis SurfaceTextureClient(const SurfaceTextureClient& rhs); 438ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 448ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // ANativeWindow hooks 458ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis static int cancelBuffer(ANativeWindow* window, android_native_buffer_t* buffer); 469d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis static int dequeueBuffer(ANativeWindow* window, android_native_buffer_t** buffer); 478ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis static int lockBuffer(ANativeWindow* window, android_native_buffer_t* buffer); 488ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis static int perform(ANativeWindow* window, int operation, ...); 499d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis static int query(ANativeWindow* window, int what, int* value); 509d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis static int queueBuffer(ANativeWindow* window, android_native_buffer_t* buffer); 519d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis static int setSwapInterval(ANativeWindow* window, int interval); 528ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 539d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int cancelBuffer(android_native_buffer_t* buffer); 548ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int dequeueBuffer(android_native_buffer_t** buffer); 558ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int lockBuffer(android_native_buffer_t* buffer); 568ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int perform(int operation, va_list args); 579d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int query(int what, int* value); 589d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int queueBuffer(android_native_buffer_t* buffer); 599d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int setSwapInterval(int interval); 608ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 618ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int dispatchConnect(va_list args); 628ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int dispatchDisconnect(va_list args); 638ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int dispatchSetBufferCount(va_list args); 648ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int dispatchSetBuffersGeometry(va_list args); 658ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int dispatchSetBuffersTransform(va_list args); 669d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int dispatchSetCrop(va_list args); 679d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int dispatchSetUsage(va_list args); 688ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 698ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int connect(int api); 708ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int disconnect(int api); 718ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int setBufferCount(int bufferCount); 728ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int setBuffersGeometry(int w, int h, int format); 738ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis int setBuffersTransform(int transform); 749d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int setCrop(Rect const* rect); 759d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis int setUsage(uint32_t reqUsage); 768ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 778ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis void freeAllBuffers(); 788ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 799d4d6c101d90d4a1d1ca9413cf3eb89d1f1898d6Jamie Gennis enum { MIN_UNDEQUEUED_BUFFERS = SurfaceTexture::MIN_UNDEQUEUED_BUFFERS }; 808ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis enum { MIN_BUFFER_SLOTS = SurfaceTexture::MIN_BUFFER_SLOTS }; 818ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis enum { NUM_BUFFER_SLOTS = SurfaceTexture::NUM_BUFFER_SLOTS }; 828ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis enum { DEFAULT_FORMAT = PIXEL_FORMAT_RGBA_8888 }; 838ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 848ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mSurfaceTexture is the interface to the surface texture server. All 858ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // operations on the surface texture client ultimately translate into 868ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // interactions with the server using this interface. 878ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis sp<ISurfaceTexture> mSurfaceTexture; 888ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 891b20cde313b5ef8acdace742328df867956d24cbJamie Gennis // mAllocator is the binder object that is referenced to prevent the 901b20cde313b5ef8acdace742328df867956d24cbJamie Gennis // dequeued buffers from being freed prematurely. 911b20cde313b5ef8acdace742328df867956d24cbJamie Gennis sp<IBinder> mAllocator; 921b20cde313b5ef8acdace742328df867956d24cbJamie Gennis 938ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mSlots stores the buffers that have been allocated for each buffer slot. 948ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // It is initialized to null pointers, and gets filled in with the result of 958ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // ISurfaceTexture::requestBuffer when the client dequeues a buffer from a 968ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // slot that has not yet been used. The buffer allocated to a slot will also 978ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // be replaced if the requested buffer usage or geometry differs from that 988ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // of the buffer allocated to a slot. 998ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis sp<GraphicBuffer> mSlots[NUM_BUFFER_SLOTS]; 1008ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1018ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mReqWidth is the buffer width that will be requested at the next dequeue 1028ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // operation. It is initialized to 1. 1038ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis uint32_t mReqWidth; 1048ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1058ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mReqHeight is the buffer height that will be requested at the next deuque 1068ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // operation. It is initialized to 1. 1078ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis uint32_t mReqHeight; 1088ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1098ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mReqFormat is the buffer pixel format that will be requested at the next 1108ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // deuque operation. It is initialized to PIXEL_FORMAT_RGBA_8888. 1118ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis uint32_t mReqFormat; 1128ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1138ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mReqUsage is the set of buffer usage flags that will be requested 1148ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // at the next deuque operation. It is initialized to 0. 1158ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis uint32_t mReqUsage; 1168ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1178ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mMutex is the mutex used to prevent concurrent access to the member 1188ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // variables of SurfaceTexture objects. It must be locked whenever the 1198ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // member variables are accessed. 1208ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis Mutex mMutex; 1218ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis}; 1228ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1238ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis}; // namespace android 1248ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 1258ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#endif // ANDROID_GUI_SURFACETEXTURECLIENT_H 126