df3ca30bf6
ANDROID_swap_rectangle allows to specify the rectangle affected by eglSwapBuffers(), anything outside of this rectangle is unchanged. in particular EGL_BUFFER_DESTROYED only applies to that rectangle. This extension as well as EGL_BUFFER_PRESERVED allow major optimizations on surfaceflinger, which can redraw only the dirty area during compositing. However, ANDROID_swap_rectangle allows further optimizations in EGL by reducing the amount of copy-back needed. ANDROID_swap_rectangle is particularily important for software implementations.
115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
/*
|
|
* Copyright (C) 2007 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_DISPLAY_HARDWARE_H
|
|
#define ANDROID_DISPLAY_HARDWARE_H
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <ui/PixelFormat.h>
|
|
#include <ui/Region.h>
|
|
|
|
#include <GLES/gl.h>
|
|
#include <GLES/glext.h>
|
|
#include <EGL/egl.h>
|
|
#include <EGL/eglext.h>
|
|
|
|
#include <pixelflinger/pixelflinger.h>
|
|
|
|
#include "DisplayHardware/DisplayHardwareBase.h"
|
|
|
|
struct overlay_control_device_t;
|
|
struct framebuffer_device_t;
|
|
struct copybit_image_t;
|
|
|
|
namespace android {
|
|
|
|
class FramebufferNativeWindow;
|
|
|
|
class DisplayHardware : public DisplayHardwareBase
|
|
{
|
|
public:
|
|
enum {
|
|
DIRECT_TEXTURE = 0x00000002,
|
|
COPY_BITS_EXTENSION = 0x00000008,
|
|
NPOT_EXTENSION = 0x00000100,
|
|
DRAW_TEXTURE_EXTENSION = 0x00000200,
|
|
BUFFER_PRESERVED = 0x00010000,
|
|
UPDATE_ON_DEMAND = 0x00020000, // video driver feature
|
|
SLOW_CONFIG = 0x00040000, // software
|
|
SWAP_RECTANGLE = 0x00080000,
|
|
};
|
|
|
|
DisplayHardware(
|
|
const sp<SurfaceFlinger>& flinger,
|
|
uint32_t displayIndex);
|
|
|
|
~DisplayHardware();
|
|
|
|
void releaseScreen() const;
|
|
void acquireScreen() const;
|
|
|
|
// Flip the front and back buffers if the back buffer is "dirty". Might
|
|
// be instantaneous, might involve copying the frame buffer around.
|
|
void flip(const Region& dirty) const;
|
|
|
|
float getDpiX() const;
|
|
float getDpiY() const;
|
|
float getRefreshRate() const;
|
|
float getDensity() const;
|
|
int getWidth() const;
|
|
int getHeight() const;
|
|
PixelFormat getFormat() const;
|
|
uint32_t getFlags() const;
|
|
void makeCurrent() const;
|
|
|
|
uint32_t getPageFlipCount() const;
|
|
EGLDisplay getEGLDisplay() const { return mDisplay; }
|
|
overlay_control_device_t* getOverlayEngine() const { return mOverlayEngine; }
|
|
|
|
void copyFrontToImage(const copybit_image_t& front) const;
|
|
void copyBackToImage(const copybit_image_t& front) const;
|
|
|
|
Rect bounds() const {
|
|
return Rect(mWidth, mHeight);
|
|
}
|
|
|
|
private:
|
|
void init(uint32_t displayIndex) __attribute__((noinline));
|
|
void fini() __attribute__((noinline));
|
|
|
|
EGLDisplay mDisplay;
|
|
EGLSurface mSurface;
|
|
EGLContext mContext;
|
|
EGLConfig mConfig;
|
|
float mDpiX;
|
|
float mDpiY;
|
|
float mRefreshRate;
|
|
float mDensity;
|
|
int mWidth;
|
|
int mHeight;
|
|
PixelFormat mFormat;
|
|
uint32_t mFlags;
|
|
mutable uint32_t mPageFlipCount;
|
|
|
|
sp<FramebufferNativeWindow> mNativeWindow;
|
|
overlay_control_device_t* mOverlayEngine;
|
|
};
|
|
|
|
}; // namespace android
|
|
|
|
#endif // ANDROID_DISPLAY_HARDWARE_H
|