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replicant-frameworks_native/services/surfaceflinger/DisplayHardware.cpp
Mathias Agopian 921e6ac4b7 SurfaceFlinger cleanup 
mostly refactored SurfaceFlinger.h, but also removed dead code.
cleaned-up a few includes as well.

Change-Id: Ib15f4ffe567912b61ee98aa076c6a283b72811b5
2012-07-24 00:09:35 -07:00

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/*
* 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.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <cutils/properties.h>
#include <utils/RefBase.h>
#include <utils/Log.h>
#include <ui/PixelFormat.h>
#include <GLES/gl.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <hardware/gralloc.h>
#include <private/gui/SharedBufferStack.h>
#include "DisplayHardware/FramebufferSurface.h"
#include "DisplayHardware/DisplayHardwareBase.h"
#include "DisplayHardware/HWComposer.h"
#include "DisplayHardware.h"
#include "GLExtensions.h"
#include "SurfaceFlinger.h"
#include "LayerBase.h"
// ----------------------------------------------------------------------------
using namespace android;
// ----------------------------------------------------------------------------
static __attribute__((noinline))
void checkGLErrors()
{
do {
// there could be more than one error flag
GLenum error = glGetError();
if (error == GL_NO_ERROR)
break;
ALOGE("GL error 0x%04x", int(error));
} while(true);
}
static __attribute__((noinline))
void checkEGLErrors(const char* token)
{
struct EGLUtils {
static const char *strerror(EGLint err) {
switch (err){
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "UNKNOWN";
}
}
};
EGLint error = eglGetError();
if (error && error != EGL_SUCCESS) {
ALOGE("%s: EGL error 0x%04x (%s)",
token, int(error), EGLUtils::strerror(error));
}
}
// ----------------------------------------------------------------------------
/*
* Initialize the display to the specified values.
*
*/
DisplayHardware::DisplayHardware(
const sp<SurfaceFlinger>& flinger,
int display,
const sp<SurfaceTextureClient>& surface,
EGLConfig config)
: DisplayHardwareBase(display),
mFlinger(flinger),
mDisplayId(display),
mHwc(0),
mNativeWindow(surface),
mFlags(0),
mSecureLayerVisible(false)
{
init(config);
}
DisplayHardware::~DisplayHardware() {
}
float DisplayHardware::getDpiX() const {
return mDpiX;
}
float DisplayHardware::getDpiY() const {
return mDpiY;
}
float DisplayHardware::getDensity() const {
return mDensity;
}
float DisplayHardware::getRefreshRate() const {
return mRefreshRate;
}
int DisplayHardware::getWidth() const {
return mDisplayWidth;
}
int DisplayHardware::getHeight() const {
return mDisplayHeight;
}
PixelFormat DisplayHardware::getFormat() const {
return mFormat;
}
EGLSurface DisplayHardware::getEGLSurface() const {
return mSurface;
}
void DisplayHardware::init(EGLConfig config)
{
ANativeWindow* const window = mNativeWindow.get();
int concreteType;
window->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &concreteType);
if (concreteType == NATIVE_WINDOW_FRAMEBUFFER) {
mFramebufferSurface = static_cast<FramebufferSurface *>(mNativeWindow.get());
}
int format;
window->query(window, NATIVE_WINDOW_FORMAT, &format);
mDpiX = window->xdpi;
mDpiY = window->ydpi;
if (mFramebufferSurface != NULL) {
mRefreshRate = mFramebufferSurface->getRefreshRate();
} else {
mRefreshRate = 60;
}
mRefreshPeriod = nsecs_t(1e9 / mRefreshRate);
// TODO: Not sure if display density should handled by SF any longer
class Density {
static int getDensityFromProperty(char const* propName) {
char property[PROPERTY_VALUE_MAX];
int density = 0;
if (property_get(propName, property, NULL) > 0) {
density = atoi(property);
}
return density;
}
public:
static int getEmuDensity() {
return getDensityFromProperty("qemu.sf.lcd_density"); }
static int getBuildDensity() {
return getDensityFromProperty("ro.sf.lcd_density"); }
};
// The density of the device is provided by a build property
mDensity = Density::getBuildDensity() / 160.0f;
if (mDensity == 0) {
// the build doesn't provide a density -- this is wrong!
// use xdpi instead
ALOGE("ro.sf.lcd_density must be defined as a build property");
mDensity = mDpiX / 160.0f;
}
if (Density::getEmuDensity()) {
// if "qemu.sf.lcd_density" is specified, it overrides everything
mDpiX = mDpiY = mDensity = Density::getEmuDensity();
mDensity /= 160.0f;
}
/*
* Create our display's surface
*/
EGLSurface surface;
EGLint w, h;
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
surface = eglCreateWindowSurface(display, config, window, NULL);
eglQuerySurface(display, surface, EGL_WIDTH, &mDisplayWidth);
eglQuerySurface(display, surface, EGL_HEIGHT, &mDisplayHeight);
if (mFramebufferSurface != NULL) {
if (mFramebufferSurface->isUpdateOnDemand()) {
mFlags |= PARTIAL_UPDATES;
// if we have partial updates, we definitely don't need to
// preserve the backbuffer, which may be costly.
eglSurfaceAttrib(display, surface,
EGL_SWAP_BEHAVIOR, EGL_BUFFER_DESTROYED);
}
}
mDisplay = display;
mSurface = surface;
mFormat = format;
mPageFlipCount = 0;
// initialize the H/W composer
mHwc = new HWComposer(mFlinger, *this, mRefreshPeriod);
if (mHwc->initCheck() == NO_ERROR) {
mHwc->setFrameBuffer(mDisplay, mSurface);
}
// initialize the display orientation transform.
// it's a constant that should come from the display driver.
int displayOrientation = ISurfaceComposer::eOrientationDefault;
char property[PROPERTY_VALUE_MAX];
if (property_get("ro.sf.hwrotation", property, NULL) > 0) {
//displayOrientation
switch (atoi(property)) {
case 90:
displayOrientation = ISurfaceComposer::eOrientation90;
break;
case 270:
displayOrientation = ISurfaceComposer::eOrientation270;
break;
}
}
w = mDisplayWidth;
h = mDisplayHeight;
DisplayHardware::orientationToTransfrom(displayOrientation, w, h,
&mDisplayTransform);
if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) {
mLogicalDisplayWidth = h;
mLogicalDisplayHeight = w;
} else {
mLogicalDisplayWidth = w;
mLogicalDisplayHeight = h;
}
DisplayHardware::setOrientation(ISurfaceComposer::eOrientationDefault);
// initialize the shared control block
surface_flinger_cblk_t* const scblk = mFlinger->getControlBlock();
scblk->connected |= 1 << mDisplayId;
display_cblk_t* dcblk = &scblk->displays[mDisplayId];
memset(dcblk, 0, sizeof(display_cblk_t));
dcblk->w = w; // XXX: plane.getWidth();
dcblk->h = h; // XXX: plane.getHeight();
dcblk->format = format;
dcblk->orientation = ISurfaceComposer::eOrientationDefault;
dcblk->xdpi = mDpiX;
dcblk->ydpi = mDpiY;
dcblk->fps = mRefreshRate;
dcblk->density = mDensity;
}
void DisplayHardware::setVSyncHandler(const sp<VSyncHandler>& handler) {
Mutex::Autolock _l(mLock);
mVSyncHandler = handler;
}
void DisplayHardware::eventControl(int event, int enabled) {
if (event == EVENT_VSYNC) {
mPowerHAL.vsyncHint(enabled);
}
mHwc->eventControl(event, enabled);
}
void DisplayHardware::onVSyncReceived(int dpy, nsecs_t timestamp) {
sp<VSyncHandler> handler;
{ // scope for the lock
Mutex::Autolock _l(mLock);
mLastHwVSync = timestamp;
if (mVSyncHandler != NULL) {
handler = mVSyncHandler.promote();
}
}
if (handler != NULL) {
handler->onVSyncReceived(dpy, timestamp);
}
}
HWComposer& DisplayHardware::getHwComposer() const {
return *mHwc;
}
void DisplayHardware::releaseScreen() const
{
DisplayHardwareBase::releaseScreen();
if (mHwc->initCheck() == NO_ERROR) {
mHwc->release();
}
}
void DisplayHardware::acquireScreen() const
{
if (mHwc->initCheck() == NO_ERROR) {
mHwc->acquire();
}
DisplayHardwareBase::acquireScreen();
}
uint32_t DisplayHardware::getPageFlipCount() const {
return mPageFlipCount;
}
nsecs_t DisplayHardware::getRefreshTimestamp() const {
// this returns the last refresh timestamp.
// if the last one is not available, we estimate it based on
// the refresh period and whatever closest timestamp we have.
Mutex::Autolock _l(mLock);
nsecs_t now = systemTime(CLOCK_MONOTONIC);
return now - ((now - mLastHwVSync) % mRefreshPeriod);
}
nsecs_t DisplayHardware::getRefreshPeriod() const {
return mRefreshPeriod;
}
status_t DisplayHardware::compositionComplete() const {
if (mFramebufferSurface == NULL) {
return NO_ERROR;
}
return mFramebufferSurface->compositionComplete();
}
void DisplayHardware::flip(const Region& dirty) const
{
checkGLErrors();
EGLDisplay dpy = mDisplay;
EGLSurface surface = mSurface;
#ifdef EGL_ANDROID_swap_rectangle
if (mFlags & SWAP_RECTANGLE) {
const Region newDirty(dirty.intersect(bounds()));
const Rect b(newDirty.getBounds());
eglSetSwapRectangleANDROID(dpy, surface,
b.left, b.top, b.width(), b.height());
}
#endif
if (mFlags & PARTIAL_UPDATES) {
if (mFramebufferSurface != NULL) {
mFramebufferSurface->setUpdateRectangle(dirty.getBounds());
}
}
mPageFlipCount++;
if (mHwc->initCheck() == NO_ERROR) {
mHwc->commit();
} else {
eglSwapBuffers(dpy, surface);
}
checkEGLErrors("eglSwapBuffers");
}
uint32_t DisplayHardware::getFlags() const
{
return mFlags;
}
void DisplayHardware::dump(String8& res) const
{
if (mFramebufferSurface != NULL) {
mFramebufferSurface->dump(res);
}
}
// ----------------------------------------------------------------------------
void DisplayHardware::setVisibleLayersSortedByZ(const Vector< sp<LayerBase> >& layers) {
mVisibleLayersSortedByZ = layers;
size_t count = layers.size();
for (size_t i=0 ; i<count ; i++) {
if (layers[i]->isSecure()) {
mSecureLayerVisible = true;
}
}
}
Vector< sp<LayerBase> > DisplayHardware::getVisibleLayersSortedByZ() const {
return mVisibleLayersSortedByZ;
}
bool DisplayHardware::getSecureLayerVisible() const {
return mSecureLayerVisible;
}
// ----------------------------------------------------------------------------
status_t DisplayHardware::orientationToTransfrom(
int orientation, int w, int h, Transform* tr)
{
uint32_t flags = 0;
switch (orientation) {
case ISurfaceComposer::eOrientationDefault:
flags = Transform::ROT_0;
break;
case ISurfaceComposer::eOrientation90:
flags = Transform::ROT_90;
break;
case ISurfaceComposer::eOrientation180:
flags = Transform::ROT_180;
break;
case ISurfaceComposer::eOrientation270:
flags = Transform::ROT_270;
break;
default:
return BAD_VALUE;
}
tr->set(flags, w, h);
return NO_ERROR;
}
status_t DisplayHardware::setOrientation(int orientation)
{
// If the rotation can be handled in hardware, this is where
// the magic should happen.
const int w = mLogicalDisplayWidth;
const int h = mLogicalDisplayHeight;
mUserDisplayWidth = w;
mUserDisplayHeight = h;
Transform orientationTransform;
DisplayHardware::orientationToTransfrom(orientation, w, h,
&orientationTransform);
if (orientation & ISurfaceComposer::eOrientationSwapMask) {
mUserDisplayWidth = h;
mUserDisplayHeight = w;
}
mOrientation = orientation;
mGlobalTransform = mDisplayTransform * orientationTransform;
return NO_ERROR;
}
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