DisplayDevice.h revision edbf3b6af777b721cd2a1ef461947e51e88241e1 
1182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski/*
2182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * Copyright (C) 2007 The Android Open Source Project
3182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski *
4182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * Licensed under the Apache License, Version 2.0 (the "License");
5182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * you may not use this file except in compliance with the License.
6182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * You may obtain a copy of the License at
7182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski *
8182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski *      http://www.apache.org/licenses/LICENSE-2.0
9182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski *
10182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * Unless required by applicable law or agreed to in writing, software
11182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * distributed under the License is distributed on an "AS IS" BASIS,
12182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * See the License for the specific language governing permissions and
14182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski * limitations under the License.
15182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski */
16182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski
17182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski#ifndef ANDROID_DISPLAY_HARDWARE_H
18182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski#define ANDROID_DISPLAY_HARDWARE_H
19182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski
20182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski#include <stdlib.h>
21182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski
22182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski#include <ui/PixelFormat.h>
23182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski#include <ui/Region.h>
24182f73fc4da13a6417e5086ec9ecce80eb8423caAdam Lesinski
25#include <EGL/egl.h>
26
27#include "DisplayHardware/DisplayHardwareBase.h"
28
29struct overlay_control_device_t;
30struct copybit_device_t;
31struct copybit_image_t;
32struct copybit_t;
33
34namespace android {
35
36class EGLDisplaySurface;
37
38class DisplayHardware : public DisplayHardwareBase
39{
40public:
41    enum {
42        DIRECT_TEXTURE          = 0x00000002,
43        SWAP_RECTANGLE_EXTENSION= 0x00000004,
44        COPY_BITS_EXTENSION     = 0x00000008,
45        NPOT_EXTENSION          = 0x00000100,
46        DRAW_TEXTURE_EXTENSION  = 0x00000200,
47        BUFFER_PRESERVED        = 0x00010000,
48        UPDATE_ON_DEMAND        = 0x00020000,   // video driver feature
49        SLOW_CONFIG             = 0x00040000,   // software
50    };
51
52    DisplayHardware(
53            const sp<SurfaceFlinger>& flinger,
54            uint32_t displayIndex);
55
56    ~DisplayHardware();
57
58    void releaseScreen() const;
59    void acquireScreen() const;
60
61    // Flip the front and back buffers if the back buffer is "dirty".  Might
62    // be instantaneous, might involve copying the frame buffer around.
63    void flip(const Region& dirty) const;
64
65    float       getDpiX() const;
66    float       getDpiY() const;
67    float       getRefreshRate() const;
68    float       getDensity() const;
69    int         getWidth() const;
70    int         getHeight() const;
71    PixelFormat getFormat() const;
72    uint32_t    getFlags() const;
73    void        makeCurrent() const;
74
75    uint32_t getPageFlipCount() const;
76    void getDisplaySurface(copybit_image_t* img) const;
77    void getDisplaySurface(GGLSurface* fb) const;
78    EGLDisplay getEGLDisplay() const { return mDisplay; }
79    copybit_device_t* getBlitEngine() const { return mBlitEngine; }
80    overlay_control_device_t* getOverlayEngine() const { return mOverlayEngine; }
81
82    void copyFrontToImage(const copybit_image_t& front) const;
83    void copyBackToImage(const copybit_image_t& front) const;
84
85    Rect bounds() const {
86        return Rect(mWidth, mHeight);
87    }
88
89private:
90    void init(uint32_t displayIndex) __attribute__((noinline));
91    void fini() __attribute__((noinline));
92
93    EGLDisplay      mDisplay;
94    EGLSurface      mSurface;
95    EGLContext      mContext;
96    EGLConfig       mConfig;
97    float           mDpiX;
98    float           mDpiY;
99    float           mRefreshRate;
100    float           mDensity;
101    int             mWidth;
102    int             mHeight;
103    PixelFormat     mFormat;
104    uint32_t        mFlags;
105    mutable Region  mDirty;
106    sp<EGLDisplaySurface> mDisplaySurface;
107    copybit_device_t*     mBlitEngine;
108    overlay_control_device_t* mOverlayEngine;
109};
110
111}; // namespace android
112
113#endif // ANDROID_DISPLAY_HARDWARE_H
114