LayerRenderer.h revision a9489274d67b540804aafb587a226f7c2ae4464d 
1/*
2 * Copyright (C) 2011 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_LAYER_RENDERER_H
18#define ANDROID_HWUI_LAYER_RENDERER_H
19
20#include "OpenGLRenderer.h"
21#include "Layer.h"
22
23#include <SkBitmap.h>
24
25namespace android {
26namespace uirenderer {
27
28///////////////////////////////////////////////////////////////////////////////
29// Defines
30///////////////////////////////////////////////////////////////////////////////
31
32// Debug
33#if DEBUG_LAYER_RENDERER
34    #define LAYER_RENDERER_LOGD(...) LOGD(__VA_ARGS__)
35#else
36    #define LAYER_RENDERER_LOGD(...)
37#endif
38
39///////////////////////////////////////////////////////////////////////////////
40// Renderer
41///////////////////////////////////////////////////////////////////////////////
42
43class LayerRenderer: public OpenGLRenderer {
44public:
45    LayerRenderer(Layer* layer): mLayer(layer) {
46    }
47
48    ~LayerRenderer() {
49    }
50
51    void prepareDirty(float left, float top, float right, float bottom, bool opaque);
52    void finish();
53
54    bool hasLayer();
55    Region* getRegion();
56    GLint getTargetFbo();
57
58    static Layer* createTextureLayer(bool isOpaque);
59    static Layer* createLayer(uint32_t width, uint32_t height, bool isOpaque = false);
60    static bool resizeLayer(Layer* layer, uint32_t width, uint32_t height);
61    static void updateTextureLayer(Layer* layer, uint32_t width, uint32_t height,
62            bool isOpaque, GLenum renderTarget, float* transform);
63    static void destroyLayer(Layer* layer);
64    static void destroyLayerDeferred(Layer* layer);
65    static bool copyLayer(Layer* layer, SkBitmap* bitmap);
66
67private:
68    void generateMesh();
69
70    Layer* mLayer;
71}; // class LayerRenderer
72
73}; // namespace uirenderer
74}; // namespace android
75
76#endif // ANDROID_HWUI_LAYER_RENDERER_H
77