ADHOC
/
replicant-frameworks_native
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

libs/ui: Add support for triple framebuffers 

Change-Id: I90dd38deeeda9a3785b87286cc7d252c6f948750
This commit is contained in:
Naseer Ahmed 2012-06-29 12:02:32 -07:00 committed by Iliyan Malchev
parent 07912f5093
commit 0bc64be3f5
2 changed files with 15 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/ui/FramebufferNativeWindow.h
View File

@ -28,7 +28,8 @@
#include <ui/ANativeObjectBase.h>
#include <ui/Rect.h>
#define NUM_FRAME_BUFFERS 2
#define MIN_NUM_FRAME_BUFFERS 2
#define MAX_NUM_FRAME_BUFFERS 3
extern "C" EGLNativeWindowType android_createDisplaySurface(void);
@ -74,7 +75,7 @@ private:
framebuffer_device_t* fbDev;
alloc_device_t* grDev;
sp<NativeBuffer> buffers[NUM_FRAME_BUFFERS];
sp<NativeBuffer> buffers[MAX_NUM_FRAME_BUFFERS];
sp<NativeBuffer> front;
mutable Mutex mutex;

18
libs/ui/FramebufferNativeWindow.cpp
View File

@ -92,8 +92,13 @@ FramebufferNativeWindow::FramebufferNativeWindow()
mUpdateOnDemand = (fbDev->setUpdateRect != 0);
// initialize the buffer FIFO
mNumBuffers = NUM_FRAME_BUFFERS;
mNumFreeBuffers = NUM_FRAME_BUFFERS;
if(fbDev->numFramebuffers >= MIN_NUM_FRAME_BUFFERS &&
fbDev->numFramebuffers <= MAX_NUM_FRAME_BUFFERS){
mNumBuffers = fbDev->numFramebuffers;
} else {
mNumBuffers = MIN_NUM_FRAME_BUFFERS;
}
mNumFreeBuffers = mNumBuffers;
mBufferHead = mNumBuffers-1;
/*
@ -154,10 +159,11 @@ FramebufferNativeWindow::FramebufferNativeWindow()
FramebufferNativeWindow::~FramebufferNativeWindow()
{
if (grDev) {
if (buffers[0] != NULL)
grDev->free(grDev, buffers[0]->handle);
if (buffers[1] != NULL)
grDev->free(grDev, buffers[1]->handle);
for(int i = 0; i < mNumBuffers; i++) {
if (buffers[i] != NULL) {
grDev->free(grDev, buffers[i]->handle);
}
}
gralloc_close(grDev);
}