8f3960179c
The gralloc API now provides a way for using lock/unlock with the Android explicit synchronisation concept. This changes updates the GraphicBuffer class to also expose this functionality, and updates the Surface class to make use of in line with the dequeueBuffer/queueBuffer mechanism. This new behaviour is dependent on GRALLOC_MODULE_API_VERSION_0_3. If the local gralloc module does not support this then the existing synchronous lock/unlock mechanism will be used. Change-Id: I8c3fd9592e0c5400ac9be84450f55a77cc0bbdc5
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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* Copyright (C) 2007 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_UI_BUFFER_MAPPER_H
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#define ANDROID_UI_BUFFER_MAPPER_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Singleton.h>
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#include <hardware/gralloc.h>
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struct gralloc_module_t;
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namespace android {
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// ---------------------------------------------------------------------------
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class Rect;
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class GraphicBufferMapper : public Singleton<GraphicBufferMapper>
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{
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public:
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static inline GraphicBufferMapper& get() { return getInstance(); }
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status_t registerBuffer(buffer_handle_t handle);
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status_t unregisterBuffer(buffer_handle_t handle);
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status_t lock(buffer_handle_t handle,
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int usage, const Rect& bounds, void** vaddr);
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status_t lockYCbCr(buffer_handle_t handle,
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int usage, const Rect& bounds, android_ycbcr *ycbcr);
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status_t unlock(buffer_handle_t handle);
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status_t lockAsync(buffer_handle_t handle,
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int usage, const Rect& bounds, void** vaddr, int fenceFd);
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status_t lockAsyncYCbCr(buffer_handle_t handle,
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int usage, const Rect& bounds, android_ycbcr *ycbcr, int fenceFd);
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status_t unlockAsync(buffer_handle_t handle, int *fenceFd);
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// dumps information about the mapping of this handle
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void dump(buffer_handle_t handle);
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private:
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friend class Singleton<GraphicBufferMapper>;
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GraphicBufferMapper();
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gralloc_module_t const *mAllocMod;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_UI_BUFFER_MAPPER_H
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