cb6b904164
there was several issues: - when a surface was made non-current, the last frame wasn't shown and the buffer could stay locked - when a surface was made current the 2nd time, it would not dequeue a new buffer now, queue/dequeue are done when the surface is made current. for this to work, a new query() hook had to be added on android_native_window_t, it allows to retrieve some attributes of a window (currently only width and height).
87 lines
2.7 KiB
C++
87 lines
2.7 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_FRAMEBUFFER_NATIVE_WINDOW_H
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#define ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <EGL/egl.h>
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#include <utils/threads.h>
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#include <ui/Rect.h>
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#include <pixelflinger/pixelflinger.h>
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#include <ui/egl/android_natives.h>
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extern "C" EGLNativeWindowType android_createDisplaySurface(void);
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// ---------------------------------------------------------------------------
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namespace android {
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// ---------------------------------------------------------------------------
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class Surface;
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class NativeBuffer;
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// ---------------------------------------------------------------------------
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class FramebufferNativeWindow
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: public EGLNativeBase<
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android_native_window_t,
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FramebufferNativeWindow,
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LightRefBase<FramebufferNativeWindow> >
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{
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public:
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FramebufferNativeWindow();
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framebuffer_device_t const * getDevice() const { return fbDev; }
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bool isUpdateOnDemand() const { return mUpdateOnDemand; }
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status_t setUpdateRectangle(const Rect& updateRect);
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private:
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friend class LightRefBase<FramebufferNativeWindow>;
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~FramebufferNativeWindow(); // this class cannot be overloaded
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static int setSwapInterval(android_native_window_t* window, int interval);
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static int dequeueBuffer(android_native_window_t* window, android_native_buffer_t** buffer);
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static int lockBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
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static int queueBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
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static int query(android_native_window_t* window, int what, int* value);
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framebuffer_device_t* fbDev;
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alloc_device_t* grDev;
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sp<NativeBuffer> buffers[2];
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sp<NativeBuffer> front;
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mutable Mutex mutex;
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Condition mCondition;
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int32_t mNumBuffers;
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int32_t mNumFreeBuffers;
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int32_t mBufferHead;
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bool mUpdateOnDemand;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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// ---------------------------------------------------------------------------
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#endif // ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
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