DeferredDisplayList.h revision c3566d06421c8acc0aafb18f7e307e5725ce87e1 
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
18#define ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
19
20#include <utils/Errors.h>
21#include <utils/Vector.h>
22
23#include "Matrix.h"
24#include "Rect.h"
25
26namespace android {
27namespace uirenderer {
28
29class DrawOp;
30class DrawOpBatch;
31class OpenGLRenderer;
32class SkiaShader;
33
34class DeferredDisplayList {
35public:
36    DeferredDisplayList() { clear(); }
37    ~DeferredDisplayList() { clear(); }
38
39    enum OpBatchId {
40        kOpBatch_None = -1, // Don't batch
41        kOpBatch_Bitmap,
42        kOpBatch_Patch,
43        kOpBatch_AlphaVertices,
44        kOpBatch_Vertices,
45        kOpBatch_AlphaMaskTexture,
46        kOpBatch_Text,
47        kOpBatch_ColorText,
48
49        kOpBatch_Count, // Add other batch ids before this
50    };
51
52    bool isEmpty() { return mBatches.isEmpty(); }
53
54    /**
55     * Plays back all of the draw ops recorded into batches to the renderer.
56     * Adjusts the state of the renderer as necessary, and restores it when complete
57     */
58    status_t flush(OpenGLRenderer& renderer, Rect& dirty, int32_t flags,
59            uint32_t level);
60
61    /**
62     * Add a draw op into the DeferredDisplayList, reordering as needed (for performance) if
63     * disallowReorder is false, respecting draw order when overlaps occur
64     */
65    void add(DrawOp* op, bool disallowReorder);
66
67private:
68    void clear();
69
70
71    Vector<DrawOpBatch*> mBatches;
72    int mBatchIndices[kOpBatch_Count];
73};
74
75}; // namespace uirenderer
76}; // namespace android
77
78#endif // ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
79