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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_GUI_SURFACE_H
#define ANDROID_GUI_SURFACE_H
#include <system/window.h>
#include <ui/ANativeObjectBase.h>
#include <utils/RefBase.h>
#include "gui/IGraphicBufferProducer.h"
namespace android {
class Surface : public ANativeObjectBase<ANativeWindow, Surface, RefBase> {
public:
explicit Surface(const sp<IGraphicBufferProducer>& bufferProducer, bool controlledByApp = false)
: mBufferProducer(bufferProducer) {
ANativeWindow::perform = hook_perform;
ANativeWindow::dequeueBuffer = hook_dequeueBuffer;
ANativeWindow::query = hook_query;
}
sp<IGraphicBufferProducer> getIGraphicBufferProducer() const {
return mBufferProducer;
}
static bool isValid(const sp<Surface>& surface) {
return surface != nullptr;
}
void allocateBuffers() {}
uint64_t getNextFrameNumber() const {
return 0;
}
int setScalingMode(int mode) {
return 0;
}
virtual int disconnect(int api,
IGraphicBufferProducer::DisconnectMode mode =
IGraphicBufferProducer::DisconnectMode::Api) {
return 0;
}
virtual int lock(ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds) {
// TODO: implement this
return 0;
}
virtual int unlockAndPost() {
return 0;
}
virtual int query(int what, int* value) const {
return mBufferProducer->query(what, value);
}
status_t setDequeueTimeout(nsecs_t timeout) {
return OK;
}
nsecs_t getLastDequeueStartTime() const {
return 0;
}
virtual void destroy() {}
int getBuffersDataSpace() {
return 0;
}
protected:
virtual ~Surface() {}
static int hook_perform(ANativeWindow* window, int operation, ...) {
va_list args;
va_start(args, operation);
Surface* c = getSelf(window);
int result = c->perform(operation, args);
va_end(args);
return result;
}
static int hook_query(const ANativeWindow* window, int what, int* value) {
const Surface* c = getSelf(window);
return c->query(what, value);
}
static int hook_dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer,
int* fenceFd) {
Surface* c = getSelf(window);
return c->dequeueBuffer(buffer, fenceFd);
}
virtual int dequeueBuffer(ANativeWindowBuffer** buffer, int* fenceFd) {
mBufferProducer->requestBuffer(0, &mBuffer);
*buffer = mBuffer.get();
return OK;
}
virtual int cancelBuffer(ANativeWindowBuffer* buffer, int fenceFd) {
return 0;
}
virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd) {
return 0;
}
virtual int perform(int operation, va_list args) {
return 0;
}
virtual int setSwapInterval(int interval) {
return 0;
}
virtual int setBufferCount(int bufferCount) {
return 0;
}
private:
// can't be copied
Surface& operator=(const Surface& rhs);
Surface(const Surface& rhs);
const sp<IGraphicBufferProducer> mBufferProducer;
sp<GraphicBuffer> mBuffer;
};
} // namespace android
#endif // ANDROID_GUI_SURFACE_H
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