119 lines
4.5 KiB
C++
119 lines
4.5 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_GUI_SURFACETEXTURECLIENT_H
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#define ANDROID_GUI_SURFACETEXTURECLIENT_H
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#include <gui/ISurfaceTexture.h>
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#include <gui/SurfaceTexture.h>
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#include <ui/egl/android_natives.h>
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#include <utils/RefBase.h>
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#include <utils/threads.h>
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namespace android {
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class SurfaceTextureClient
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: public EGLNativeBase<ANativeWindow, SurfaceTextureClient, RefBase>
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{
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public:
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SurfaceTextureClient(const sp<ISurfaceTexture>& surfaceTexture);
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private:
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// can't be copied
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SurfaceTextureClient& operator = (const SurfaceTextureClient& rhs);
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SurfaceTextureClient(const SurfaceTextureClient& rhs);
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// ANativeWindow hooks
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static int setSwapInterval(ANativeWindow* window, int interval);
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static int dequeueBuffer(ANativeWindow* window, android_native_buffer_t** buffer);
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static int cancelBuffer(ANativeWindow* window, android_native_buffer_t* buffer);
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static int lockBuffer(ANativeWindow* window, android_native_buffer_t* buffer);
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static int queueBuffer(ANativeWindow* window, android_native_buffer_t* buffer);
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static int query(ANativeWindow* window, int what, int* value);
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static int perform(ANativeWindow* window, int operation, ...);
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int setSwapInterval(int interval);
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int dequeueBuffer(android_native_buffer_t** buffer);
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int lockBuffer(android_native_buffer_t* buffer);
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int queueBuffer(android_native_buffer_t* buffer);
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int cancelBuffer(android_native_buffer_t* buffer);
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int query(int what, int* value);
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int perform(int operation, va_list args);
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int dispatchSetUsage(va_list args);
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int dispatchConnect(va_list args);
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int dispatchDisconnect(va_list args);
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int dispatchSetCrop(va_list args);
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int dispatchSetBufferCount(va_list args);
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int dispatchSetBuffersGeometry(va_list args);
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int dispatchSetBuffersTransform(va_list args);
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int connect(int api);
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int disconnect(int api);
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int setUsage(uint32_t reqUsage);
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int setCrop(Rect const* rect);
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int setBufferCount(int bufferCount);
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int setBuffersGeometry(int w, int h, int format);
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int setBuffersTransform(int transform);
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void freeAllBuffers();
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enum { MIN_BUFFER_SLOTS = SurfaceTexture::MIN_BUFFER_SLOTS };
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enum { NUM_BUFFER_SLOTS = SurfaceTexture::NUM_BUFFER_SLOTS };
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enum { DEFAULT_FORMAT = PIXEL_FORMAT_RGBA_8888 };
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// mSurfaceTexture is the interface to the surface texture server. All
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// operations on the surface texture client ultimately translate into
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// interactions with the server using this interface.
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sp<ISurfaceTexture> mSurfaceTexture;
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// mSlots stores the buffers that have been allocated for each buffer slot.
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// It is initialized to null pointers, and gets filled in with the result of
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// ISurfaceTexture::requestBuffer when the client dequeues a buffer from a
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// slot that has not yet been used. The buffer allocated to a slot will also
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// be replaced if the requested buffer usage or geometry differs from that
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// of the buffer allocated to a slot.
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sp<GraphicBuffer> mSlots[NUM_BUFFER_SLOTS];
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// mReqWidth is the buffer width that will be requested at the next dequeue
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// operation. It is initialized to 1.
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uint32_t mReqWidth;
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// mReqHeight is the buffer height that will be requested at the next deuque
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// operation. It is initialized to 1.
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uint32_t mReqHeight;
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// mReqFormat is the buffer pixel format that will be requested at the next
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// deuque operation. It is initialized to PIXEL_FORMAT_RGBA_8888.
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uint32_t mReqFormat;
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// mReqUsage is the set of buffer usage flags that will be requested
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// at the next deuque operation. It is initialized to 0.
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uint32_t mReqUsage;
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// mMutex is the mutex used to prevent concurrent access to the member
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// variables of SurfaceTexture objects. It must be locked whenever the
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// member variables are accessed.
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Mutex mMutex;
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};
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}; // namespace android
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#endif // ANDROID_GUI_SURFACETEXTURECLIENT_H
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