1 /* 2 * Copyright (C) 2007 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_DISPLAY_HARDWARE_H 18 #define ANDROID_DISPLAY_HARDWARE_H 19 20 #include <stdlib.h> 21 22 #include <ui/PixelFormat.h> 23 #include <ui/Region.h> 24 25 #include <GLES/gl.h> 26 #include <GLES/glext.h> 27 #include <EGL/egl.h> 28 #include <EGL/eglext.h> 29 30 #include <pixelflinger/pixelflinger.h> 31 32 #include "GLExtensions.h" 33 34 #include "DisplayHardware/DisplayHardwareBase.h" 35 36 namespace android { 37 38 class FramebufferNativeWindow; 39 class HWComposer; 40 41 class DisplayHardware : public DisplayHardwareBase 42 { 43 public: 44 enum { 45 COPY_BITS_EXTENSION = 0x00000008, 46 BUFFER_PRESERVED = 0x00010000, 47 PARTIAL_UPDATES = 0x00020000, // video driver feature 48 SLOW_CONFIG = 0x00040000, // software 49 SWAP_RECTANGLE = 0x00080000, 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 uint32_t getMaxTextureSize() const; 75 uint32_t getMaxViewportDims() const; 76 77 uint32_t getPageFlipCount() const; getEGLDisplay()78 EGLDisplay getEGLDisplay() const { return mDisplay; } 79 80 void dump(String8& res) const; 81 82 // Hardware Composer 83 HWComposer& getHwComposer() const; 84 85 status_t compositionComplete() const; 86 getBounds()87 Rect getBounds() const { 88 return Rect(mWidth, mHeight); 89 } bounds()90 inline Rect bounds() const { return getBounds(); } 91 92 // only for debugging 93 int getCurrentBufferIndex() const; 94 95 private: 96 void init(uint32_t displayIndex) __attribute__((noinline)); 97 void fini() __attribute__((noinline)); 98 99 sp<SurfaceFlinger> mFlinger; 100 EGLDisplay mDisplay; 101 EGLSurface mSurface; 102 EGLContext mContext; 103 EGLConfig mConfig; 104 float mDpiX; 105 float mDpiY; 106 float mRefreshRate; 107 float mDensity; 108 int mWidth; 109 int mHeight; 110 PixelFormat mFormat; 111 uint32_t mFlags; 112 mutable uint32_t mPageFlipCount; 113 GLint mMaxViewportDims[2]; 114 GLint mMaxTextureSize; 115 116 HWComposer* mHwc; 117 118 sp<FramebufferNativeWindow> mNativeWindow; 119 }; 120 121 }; // namespace android 122 123 #endif // ANDROID_DISPLAY_HARDWARE_H 124