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/*
* Copyright (C) 2013 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_HWUI_DEFERRED_DISPLAY_LIST_H
#define ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
#include <utils/Errors.h>
#include <utils/Vector.h>
#include "Matrix.h"
#include "Rect.h"
namespace android {
namespace uirenderer {
class ClipOp;
class DrawOp;
class SaveOp;
class SaveLayerOp;
class StateOp;
class DrawOpBatch;
class OpenGLRenderer;
class DeferredDisplayList {
public:
DeferredDisplayList() { clear(); }
~DeferredDisplayList() { clear(); }
enum OpBatchId {
kOpBatch_None = -1, // Don't batch
kOpBatch_Bitmap,
kOpBatch_Patch,
kOpBatch_AlphaVertices,
kOpBatch_Vertices,
kOpBatch_AlphaMaskTexture,
kOpBatch_Text,
kOpBatch_ColorText,
kOpBatch_Count, // Add other batch ids before this
};
bool isEmpty() { return mBatches.isEmpty(); }
/**
* Plays back all of the draw ops recorded into batches to the renderer.
* Adjusts the state of the renderer as necessary, and restores it when complete
*/
status_t flush(OpenGLRenderer& renderer, Rect& dirty);
void addClip(OpenGLRenderer& renderer, ClipOp* op);
void addSaveLayer(OpenGLRenderer& renderer, SaveLayerOp* op, int newSaveCount);
void addSave(OpenGLRenderer& renderer, SaveOp* op, int newSaveCount);
void addRestoreToCount(OpenGLRenderer& renderer, StateOp* op, int newSaveCount);
/**
* Add a draw op into the DeferredDisplayList, reordering as needed (for performance) if
* disallowReorder is false, respecting draw order when overlaps occur
*/
void addDrawOp(OpenGLRenderer& renderer, DrawOp* op);
private:
/**
* Resets the batching back-pointers, creating a barrier in the operation stream so that no ops
* added in the future will be inserted into a batch that already exist.
*/
void resetBatchingState();
void clear();
void storeStateOpBarrier(OpenGLRenderer& renderer, StateOp* op);
void storeRestoreToCountBarrier(OpenGLRenderer& renderer, StateOp* op, int newSaveCount);
bool recordingComplexClip() const { return mComplexClipStackStart >= 0; }
int getStateOpDeferFlags() const;
int getDrawOpDeferFlags() const;
/**
* At defer time, stores the *defer time* savecount of save/saveLayer ops that were deferred, so
* that when an associated restoreToCount is deferred, it can be recorded as a
* RestoreToCountBatch
*/
Vector<int> mSaveStack;
int mComplexClipStackStart;
Vector<DrawOpBatch*> mBatches;
int mBatchIndices[kOpBatch_Count];
};
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
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