939fee8819
* commit 'e22aa62362a3007ee59ac62d4b5969e216987995': fix [4093196] Device lock up - log spam with SharedBufferStack: waitForCondition(LockCondition) timed out
1077 lines
34 KiB
C++
1077 lines
34 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.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <cutils/properties.h>
|
|
#include <cutils/native_handle.h>
|
|
|
|
#include <utils/Errors.h>
|
|
#include <utils/Log.h>
|
|
#include <utils/StopWatch.h>
|
|
|
|
#include <ui/GraphicBuffer.h>
|
|
#include <ui/PixelFormat.h>
|
|
|
|
#include <surfaceflinger/Surface.h>
|
|
|
|
#include "clz.h"
|
|
#include "GLExtensions.h"
|
|
#include "Layer.h"
|
|
#include "SurfaceFlinger.h"
|
|
#include "DisplayHardware/DisplayHardware.h"
|
|
#include "DisplayHardware/HWComposer.h"
|
|
|
|
|
|
#define DEBUG_RESIZE 0
|
|
|
|
|
|
namespace android {
|
|
|
|
template <typename T> inline T min(T a, T b) {
|
|
return a<b ? a : b;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
Layer::Layer(SurfaceFlinger* flinger,
|
|
DisplayID display, const sp<Client>& client)
|
|
: LayerBaseClient(flinger, display, client),
|
|
mFormat(PIXEL_FORMAT_NONE),
|
|
mGLExtensions(GLExtensions::getInstance()),
|
|
mNeedsBlending(true),
|
|
mNeedsDithering(false),
|
|
mSecure(false),
|
|
mProtectedByApp(false),
|
|
mTextureManager(),
|
|
mBufferManager(mTextureManager),
|
|
mWidth(0), mHeight(0),
|
|
mNeedsScaling(false), mFixedSize(false)
|
|
{
|
|
}
|
|
|
|
Layer::~Layer()
|
|
{
|
|
// FIXME: must be called from the main UI thread
|
|
EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay());
|
|
mBufferManager.destroy(dpy);
|
|
|
|
// we can use getUserClientUnsafe here because we know we're
|
|
// single-threaded at that point.
|
|
sp<UserClient> ourClient(mUserClientRef.getUserClientUnsafe());
|
|
if (ourClient != 0) {
|
|
ourClient->detachLayer(this);
|
|
}
|
|
}
|
|
|
|
status_t Layer::setToken(const sp<UserClient>& userClient,
|
|
SharedClient* sharedClient, int32_t token)
|
|
{
|
|
sp<SharedBufferServer> lcblk = new SharedBufferServer(
|
|
sharedClient, token, mBufferManager.getDefaultBufferCount(),
|
|
getIdentity());
|
|
|
|
|
|
sp<UserClient> ourClient(mUserClientRef.getClient());
|
|
|
|
/*
|
|
* Here it is guaranteed that userClient != ourClient
|
|
* (see UserClient::getTokenForSurface()).
|
|
*
|
|
* We release the token used by this surface in ourClient below.
|
|
* This should be safe to do so now, since this layer won't be attached
|
|
* to this client, it should be okay to reuse that id.
|
|
*
|
|
* If this causes problems, an other solution would be to keep a list
|
|
* of all the {UserClient, token} ever used and release them when the
|
|
* Layer is destroyed.
|
|
*
|
|
*/
|
|
|
|
if (ourClient != 0) {
|
|
ourClient->detachLayer(this);
|
|
}
|
|
|
|
status_t err = mUserClientRef.setToken(userClient, lcblk, token);
|
|
LOGE_IF(err != NO_ERROR,
|
|
"ClientRef::setToken(%p, %p, %u) failed",
|
|
userClient.get(), lcblk.get(), token);
|
|
|
|
if (err == NO_ERROR) {
|
|
// we need to free the buffers associated with this surface
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int32_t Layer::getToken() const
|
|
{
|
|
return mUserClientRef.getToken();
|
|
}
|
|
|
|
sp<UserClient> Layer::getClient() const
|
|
{
|
|
return mUserClientRef.getClient();
|
|
}
|
|
|
|
// called with SurfaceFlinger::mStateLock as soon as the layer is entered
|
|
// in the purgatory list
|
|
void Layer::onRemoved()
|
|
{
|
|
ClientRef::Access sharedClient(mUserClientRef);
|
|
SharedBufferServer* lcblk(sharedClient.get());
|
|
if (lcblk) {
|
|
// wake up the condition
|
|
lcblk->setStatus(NO_INIT);
|
|
}
|
|
}
|
|
|
|
sp<LayerBaseClient::Surface> Layer::createSurface() const
|
|
{
|
|
sp<Surface> sur(new SurfaceLayer(mFlinger, const_cast<Layer *>(this)));
|
|
return sur;
|
|
}
|
|
|
|
status_t Layer::ditch()
|
|
{
|
|
// NOTE: Called from the main UI thread
|
|
|
|
// the layer is not on screen anymore. free as much resources as possible
|
|
mFreezeLock.clear();
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
mWidth = mHeight = 0;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t Layer::setBuffers( uint32_t w, uint32_t h,
|
|
PixelFormat format, uint32_t flags)
|
|
{
|
|
// this surfaces pixel format
|
|
PixelFormatInfo info;
|
|
status_t err = getPixelFormatInfo(format, &info);
|
|
if (err) return err;
|
|
|
|
// the display's pixel format
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
uint32_t const maxSurfaceDims = min(
|
|
hw.getMaxTextureSize(), hw.getMaxViewportDims());
|
|
|
|
// never allow a surface larger than what our underlying GL implementation
|
|
// can handle.
|
|
if ((uint32_t(w)>maxSurfaceDims) || (uint32_t(h)>maxSurfaceDims)) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
PixelFormatInfo displayInfo;
|
|
getPixelFormatInfo(hw.getFormat(), &displayInfo);
|
|
const uint32_t hwFlags = hw.getFlags();
|
|
|
|
mFormat = format;
|
|
mWidth = w;
|
|
mHeight = h;
|
|
|
|
mReqFormat = format;
|
|
mReqWidth = w;
|
|
mReqHeight = h;
|
|
|
|
mSecure = (flags & ISurfaceComposer::eSecure) ? true : false;
|
|
mProtectedByApp = (flags & ISurfaceComposer::eProtectedByApp) ? true : false;
|
|
mNeedsBlending = (info.h_alpha - info.l_alpha) > 0 &&
|
|
(flags & ISurfaceComposer::eOpaque) == 0;
|
|
|
|
// we use the red index
|
|
int displayRedSize = displayInfo.getSize(PixelFormatInfo::INDEX_RED);
|
|
int layerRedsize = info.getSize(PixelFormatInfo::INDEX_RED);
|
|
mNeedsDithering = layerRedsize > displayRedSize;
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void Layer::setGeometry(hwc_layer_t* hwcl)
|
|
{
|
|
hwcl->compositionType = HWC_FRAMEBUFFER;
|
|
hwcl->hints = 0;
|
|
hwcl->flags = 0;
|
|
hwcl->transform = 0;
|
|
hwcl->blending = HWC_BLENDING_NONE;
|
|
|
|
// we can't do alpha-fade with the hwc HAL
|
|
const State& s(drawingState());
|
|
if (s.alpha < 0xFF) {
|
|
hwcl->flags = HWC_SKIP_LAYER;
|
|
return;
|
|
}
|
|
|
|
// we can only handle simple transformation
|
|
if (mOrientation & Transform::ROT_INVALID) {
|
|
hwcl->flags = HWC_SKIP_LAYER;
|
|
return;
|
|
}
|
|
|
|
Transform tr(Transform(mOrientation) * Transform(mBufferTransform));
|
|
hwcl->transform = tr.getOrientation();
|
|
|
|
if (needsBlending()) {
|
|
hwcl->blending = mPremultipliedAlpha ?
|
|
HWC_BLENDING_PREMULT : HWC_BLENDING_COVERAGE;
|
|
}
|
|
|
|
hwcl->displayFrame.left = mTransformedBounds.left;
|
|
hwcl->displayFrame.top = mTransformedBounds.top;
|
|
hwcl->displayFrame.right = mTransformedBounds.right;
|
|
hwcl->displayFrame.bottom = mTransformedBounds.bottom;
|
|
|
|
hwcl->visibleRegionScreen.rects =
|
|
reinterpret_cast<hwc_rect_t const *>(
|
|
visibleRegionScreen.getArray(
|
|
&hwcl->visibleRegionScreen.numRects));
|
|
}
|
|
|
|
void Layer::setPerFrameData(hwc_layer_t* hwcl) {
|
|
sp<GraphicBuffer> buffer(mBufferManager.getActiveBuffer());
|
|
if (buffer == NULL) {
|
|
// this can happen if the client never drew into this layer yet,
|
|
// or if we ran out of memory. In that case, don't let
|
|
// HWC handle it.
|
|
hwcl->flags |= HWC_SKIP_LAYER;
|
|
hwcl->handle = NULL;
|
|
return;
|
|
}
|
|
hwcl->handle = buffer->handle;
|
|
|
|
if (!mBufferCrop.isEmpty()) {
|
|
hwcl->sourceCrop.left = mBufferCrop.left;
|
|
hwcl->sourceCrop.top = mBufferCrop.top;
|
|
hwcl->sourceCrop.right = mBufferCrop.right;
|
|
hwcl->sourceCrop.bottom = mBufferCrop.bottom;
|
|
} else {
|
|
hwcl->sourceCrop.left = 0;
|
|
hwcl->sourceCrop.top = 0;
|
|
hwcl->sourceCrop.right = buffer->width;
|
|
hwcl->sourceCrop.bottom = buffer->height;
|
|
}
|
|
}
|
|
|
|
void Layer::reloadTexture(const Region& dirty)
|
|
{
|
|
sp<GraphicBuffer> buffer(mBufferManager.getActiveBuffer());
|
|
if (buffer == NULL) {
|
|
// this situation can happen if we ran out of memory for instance.
|
|
// not much we can do. continue to use whatever texture was bound
|
|
// to this context.
|
|
return;
|
|
}
|
|
|
|
if (mGLExtensions.haveDirectTexture()) {
|
|
EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay());
|
|
if (mBufferManager.initEglImage(dpy, buffer) != NO_ERROR) {
|
|
// not sure what we can do here...
|
|
goto slowpath;
|
|
}
|
|
} else {
|
|
slowpath:
|
|
GGLSurface t;
|
|
if (buffer->usage & GRALLOC_USAGE_SW_READ_MASK) {
|
|
status_t res = buffer->lock(&t, GRALLOC_USAGE_SW_READ_OFTEN);
|
|
LOGE_IF(res, "error %d (%s) locking buffer %p",
|
|
res, strerror(res), buffer.get());
|
|
if (res == NO_ERROR) {
|
|
mBufferManager.loadTexture(dirty, t);
|
|
buffer->unlock();
|
|
}
|
|
} else {
|
|
// we can't do anything
|
|
}
|
|
}
|
|
}
|
|
|
|
void Layer::drawForSreenShot() const
|
|
{
|
|
const bool currentFiltering = mNeedsFiltering;
|
|
const_cast<Layer*>(this)->mNeedsFiltering = true;
|
|
LayerBase::drawForSreenShot();
|
|
const_cast<Layer*>(this)->mNeedsFiltering = currentFiltering;
|
|
}
|
|
|
|
void Layer::onDraw(const Region& clip) const
|
|
{
|
|
Texture tex(mBufferManager.getActiveTexture());
|
|
if (tex.name == -1LU) {
|
|
// the texture has not been created yet, this Layer has
|
|
// in fact never been drawn into. This happens frequently with
|
|
// SurfaceView because the WindowManager can't know when the client
|
|
// has drawn the first time.
|
|
|
|
// If there is nothing under us, we paint the screen in black, otherwise
|
|
// we just skip this update.
|
|
|
|
// figure out if there is something below us
|
|
Region under;
|
|
const SurfaceFlinger::LayerVector& drawingLayers(mFlinger->mDrawingState.layersSortedByZ);
|
|
const size_t count = drawingLayers.size();
|
|
for (size_t i=0 ; i<count ; ++i) {
|
|
const sp<LayerBase>& layer(drawingLayers[i]);
|
|
if (layer.get() == static_cast<LayerBase const*>(this))
|
|
break;
|
|
under.orSelf(layer->visibleRegionScreen);
|
|
}
|
|
// if not everything below us is covered, we plug the holes!
|
|
Region holes(clip.subtract(under));
|
|
if (!holes.isEmpty()) {
|
|
clearWithOpenGL(holes, 0, 0, 0, 1);
|
|
}
|
|
return;
|
|
}
|
|
drawWithOpenGL(clip, tex);
|
|
}
|
|
|
|
// As documented in libhardware header, formats in the range
|
|
// 0x100 - 0x1FF are specific to the HAL implementation, and
|
|
// are known to have no alpha channel
|
|
// TODO: move definition for device-specific range into
|
|
// hardware.h, instead of using hard-coded values here.
|
|
#define HARDWARE_IS_DEVICE_FORMAT(f) ((f) >= 0x100 && (f) <= 0x1FF)
|
|
|
|
bool Layer::needsBlending(const sp<GraphicBuffer>& buffer) const
|
|
{
|
|
// If buffers where set with eOpaque flag, all buffers are known to
|
|
// be opaque without having to check their actual format
|
|
if (mNeedsBlending && buffer != NULL) {
|
|
PixelFormat format = buffer->getPixelFormat();
|
|
|
|
if (HARDWARE_IS_DEVICE_FORMAT(format)) {
|
|
return false;
|
|
}
|
|
|
|
PixelFormatInfo info;
|
|
status_t err = getPixelFormatInfo(format, &info);
|
|
if (!err && info.h_alpha <= info.l_alpha) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Return opacity as determined from flags and format options
|
|
// passed to setBuffers()
|
|
return mNeedsBlending;
|
|
}
|
|
|
|
bool Layer::needsBlending() const
|
|
{
|
|
if (mBufferManager.hasActiveBuffer()) {
|
|
return needsBlending(mBufferManager.getActiveBuffer());
|
|
}
|
|
|
|
return mNeedsBlending;
|
|
}
|
|
|
|
bool Layer::needsFiltering() const
|
|
{
|
|
if (!(mFlags & DisplayHardware::SLOW_CONFIG)) {
|
|
// if our buffer is not the same size than ourselves,
|
|
// we need filtering.
|
|
Mutex::Autolock _l(mLock);
|
|
if (mNeedsScaling)
|
|
return true;
|
|
}
|
|
return LayerBase::needsFiltering();
|
|
}
|
|
|
|
bool Layer::isProtected() const
|
|
{
|
|
sp<GraphicBuffer> activeBuffer(mBufferManager.getActiveBuffer());
|
|
return (activeBuffer != 0) &&
|
|
(activeBuffer->getUsage() & GRALLOC_USAGE_PROTECTED);
|
|
}
|
|
|
|
status_t Layer::setBufferCount(int bufferCount)
|
|
{
|
|
ClientRef::Access sharedClient(mUserClientRef);
|
|
SharedBufferServer* lcblk(sharedClient.get());
|
|
if (!lcblk) {
|
|
// oops, the client is already gone
|
|
return DEAD_OBJECT;
|
|
}
|
|
|
|
// NOTE: lcblk->resize() is protected by an internal lock
|
|
status_t err = lcblk->resize(bufferCount);
|
|
if (err == NO_ERROR) {
|
|
EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay());
|
|
mBufferManager.resize(bufferCount, mFlinger, dpy);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
sp<GraphicBuffer> Layer::requestBuffer(int index,
|
|
uint32_t reqWidth, uint32_t reqHeight, uint32_t reqFormat,
|
|
uint32_t usage)
|
|
{
|
|
sp<GraphicBuffer> buffer;
|
|
|
|
if (int32_t(reqWidth | reqHeight | reqFormat) < 0)
|
|
return buffer;
|
|
|
|
if ((!reqWidth && reqHeight) || (reqWidth && !reqHeight))
|
|
return buffer;
|
|
|
|
// this ensures our client doesn't go away while we're accessing
|
|
// the shared area.
|
|
ClientRef::Access sharedClient(mUserClientRef);
|
|
SharedBufferServer* lcblk(sharedClient.get());
|
|
if (!lcblk) {
|
|
// oops, the client is already gone
|
|
return buffer;
|
|
}
|
|
|
|
/*
|
|
* This is called from the client's Surface::dequeue(). This can happen
|
|
* at any time, especially while we're in the middle of using the
|
|
* buffer 'index' as our front buffer.
|
|
*/
|
|
|
|
status_t err = NO_ERROR;
|
|
uint32_t w, h, f;
|
|
{ // scope for the lock
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
// zero means default
|
|
const bool fixedSize = reqWidth && reqHeight;
|
|
if (!reqFormat) reqFormat = mFormat;
|
|
if (!reqWidth) reqWidth = mWidth;
|
|
if (!reqHeight) reqHeight = mHeight;
|
|
|
|
w = reqWidth;
|
|
h = reqHeight;
|
|
f = reqFormat;
|
|
|
|
if ((reqWidth != mReqWidth) || (reqHeight != mReqHeight) ||
|
|
(reqFormat != mReqFormat)) {
|
|
mReqWidth = reqWidth;
|
|
mReqHeight = reqHeight;
|
|
mReqFormat = reqFormat;
|
|
mFixedSize = fixedSize;
|
|
mNeedsScaling = mWidth != mReqWidth || mHeight != mReqHeight;
|
|
|
|
lcblk->reallocateAllExcept(index);
|
|
}
|
|
}
|
|
|
|
// here we have to reallocate a new buffer because the buffer could be
|
|
// used as the front buffer, or by a client in our process
|
|
// (eg: status bar), and we can't release the handle under its feet.
|
|
const uint32_t effectiveUsage = getEffectiveUsage(usage);
|
|
buffer = new GraphicBuffer(w, h, f, effectiveUsage);
|
|
err = buffer->initCheck();
|
|
|
|
if (err || buffer->handle == 0) {
|
|
GraphicBuffer::dumpAllocationsToSystemLog();
|
|
LOGE_IF(err || buffer->handle == 0,
|
|
"Layer::requestBuffer(this=%p), index=%d, w=%d, h=%d failed (%s)",
|
|
this, index, w, h, strerror(-err));
|
|
} else {
|
|
LOGD_IF(DEBUG_RESIZE,
|
|
"Layer::requestBuffer(this=%p), index=%d, w=%d, h=%d, handle=%p",
|
|
this, index, w, h, buffer->handle);
|
|
}
|
|
|
|
if (err == NO_ERROR && buffer->handle != 0) {
|
|
Mutex::Autolock _l(mLock);
|
|
mBufferManager.attachBuffer(index, buffer);
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
uint32_t Layer::getEffectiveUsage(uint32_t usage) const
|
|
{
|
|
/*
|
|
* buffers used for software rendering, but h/w composition
|
|
* are allocated with SW_READ_OFTEN | SW_WRITE_OFTEN | HW_TEXTURE
|
|
*
|
|
* buffers used for h/w rendering and h/w composition
|
|
* are allocated with HW_RENDER | HW_TEXTURE
|
|
*
|
|
* buffers used with h/w rendering and either NPOT or no egl_image_ext
|
|
* are allocated with SW_READ_RARELY | HW_RENDER
|
|
*
|
|
*/
|
|
|
|
if (mSecure) {
|
|
// secure buffer, don't store it into the GPU
|
|
usage = GraphicBuffer::USAGE_SW_READ_OFTEN |
|
|
GraphicBuffer::USAGE_SW_WRITE_OFTEN;
|
|
} else {
|
|
// it's allowed to modify the usage flags here, but generally
|
|
// the requested flags should be honored.
|
|
// request EGLImage for all buffers
|
|
usage |= GraphicBuffer::USAGE_HW_TEXTURE;
|
|
}
|
|
if (mProtectedByApp) {
|
|
// need a hardware-protected path to external video sink
|
|
usage |= GraphicBuffer::USAGE_PROTECTED;
|
|
}
|
|
return usage;
|
|
}
|
|
|
|
uint32_t Layer::doTransaction(uint32_t flags)
|
|
{
|
|
const Layer::State& front(drawingState());
|
|
const Layer::State& temp(currentState());
|
|
|
|
const bool sizeChanged = (front.requested_w != temp.requested_w) ||
|
|
(front.requested_h != temp.requested_h);
|
|
|
|
if (sizeChanged) {
|
|
// the size changed, we need to ask our client to request a new buffer
|
|
LOGD_IF(DEBUG_RESIZE,
|
|
"resize (layer=%p), requested (%dx%d), drawing (%d,%d)",
|
|
this,
|
|
int(temp.requested_w), int(temp.requested_h),
|
|
int(front.requested_w), int(front.requested_h));
|
|
|
|
if (!isFixedSize()) {
|
|
// we're being resized and there is a freeze display request,
|
|
// acquire a freeze lock, so that the screen stays put
|
|
// until we've redrawn at the new size; this is to avoid
|
|
// glitches upon orientation changes.
|
|
if (mFlinger->hasFreezeRequest()) {
|
|
// if the surface is hidden, don't try to acquire the
|
|
// freeze lock, since hidden surfaces may never redraw
|
|
if (!(front.flags & ISurfaceComposer::eLayerHidden)) {
|
|
mFreezeLock = mFlinger->getFreezeLock();
|
|
}
|
|
}
|
|
|
|
// this will make sure LayerBase::doTransaction doesn't update
|
|
// the drawing state's size
|
|
Layer::State& editDraw(mDrawingState);
|
|
editDraw.requested_w = temp.requested_w;
|
|
editDraw.requested_h = temp.requested_h;
|
|
|
|
// record the new size, form this point on, when the client request
|
|
// a buffer, it'll get the new size.
|
|
setBufferSize(temp.requested_w, temp.requested_h);
|
|
|
|
ClientRef::Access sharedClient(mUserClientRef);
|
|
SharedBufferServer* lcblk(sharedClient.get());
|
|
if (lcblk) {
|
|
// all buffers need reallocation
|
|
lcblk->reallocateAll();
|
|
}
|
|
} else {
|
|
// record the new size
|
|
setBufferSize(temp.requested_w, temp.requested_h);
|
|
}
|
|
}
|
|
|
|
if (temp.sequence != front.sequence) {
|
|
if (temp.flags & ISurfaceComposer::eLayerHidden || temp.alpha == 0) {
|
|
// this surface is now hidden, so it shouldn't hold a freeze lock
|
|
// (it may never redraw, which is fine if it is hidden)
|
|
mFreezeLock.clear();
|
|
}
|
|
}
|
|
|
|
return LayerBase::doTransaction(flags);
|
|
}
|
|
|
|
void Layer::setBufferSize(uint32_t w, uint32_t h) {
|
|
Mutex::Autolock _l(mLock);
|
|
mWidth = w;
|
|
mHeight = h;
|
|
mNeedsScaling = mWidth != mReqWidth || mHeight != mReqHeight;
|
|
}
|
|
|
|
bool Layer::isFixedSize() const {
|
|
Mutex::Autolock _l(mLock);
|
|
return mFixedSize;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// pageflip handling...
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void Layer::lockPageFlip(bool& recomputeVisibleRegions)
|
|
{
|
|
ClientRef::Access sharedClient(mUserClientRef);
|
|
SharedBufferServer* lcblk(sharedClient.get());
|
|
if (!lcblk) {
|
|
// client died
|
|
recomputeVisibleRegions = true;
|
|
return;
|
|
}
|
|
|
|
ssize_t buf = lcblk->retireAndLock();
|
|
if (buf == NOT_ENOUGH_DATA) {
|
|
// NOTE: This is not an error, it simply means there is nothing to
|
|
// retire. The buffer is locked because we will use it
|
|
// for composition later in the loop
|
|
return;
|
|
}
|
|
|
|
if (buf < NO_ERROR) {
|
|
LOGE("retireAndLock() buffer index (%d) out of range", int(buf));
|
|
mPostedDirtyRegion.clear();
|
|
return;
|
|
}
|
|
|
|
// we retired a buffer, which becomes the new front buffer
|
|
|
|
const bool noActiveBuffer = !mBufferManager.hasActiveBuffer();
|
|
const bool activeBlending =
|
|
noActiveBuffer ? true : needsBlending(mBufferManager.getActiveBuffer());
|
|
|
|
if (mBufferManager.setActiveBufferIndex(buf) < NO_ERROR) {
|
|
LOGE("retireAndLock() buffer index (%d) out of range", int(buf));
|
|
mPostedDirtyRegion.clear();
|
|
return;
|
|
}
|
|
|
|
if (noActiveBuffer) {
|
|
// we didn't have an active buffer, we need to recompute
|
|
// our visible region
|
|
recomputeVisibleRegions = true;
|
|
}
|
|
|
|
sp<GraphicBuffer> newFrontBuffer(getBuffer(buf));
|
|
if (newFrontBuffer != NULL) {
|
|
if (!noActiveBuffer && activeBlending != needsBlending(newFrontBuffer)) {
|
|
// new buffer has different opacity than previous active buffer, need
|
|
// to recompute visible regions accordingly
|
|
recomputeVisibleRegions = true;
|
|
}
|
|
|
|
// get the dirty region
|
|
// compute the posted region
|
|
const Region dirty(lcblk->getDirtyRegion(buf));
|
|
mPostedDirtyRegion = dirty.intersect( newFrontBuffer->getBounds() );
|
|
|
|
// update the layer size and release freeze-lock
|
|
const Layer::State& front(drawingState());
|
|
if (newFrontBuffer->getWidth() == front.requested_w &&
|
|
newFrontBuffer->getHeight() == front.requested_h)
|
|
{
|
|
if ((front.w != front.requested_w) ||
|
|
(front.h != front.requested_h))
|
|
{
|
|
// Here we pretend the transaction happened by updating the
|
|
// current and drawing states. Drawing state is only accessed
|
|
// in this thread, no need to have it locked
|
|
Layer::State& editDraw(mDrawingState);
|
|
editDraw.w = editDraw.requested_w;
|
|
editDraw.h = editDraw.requested_h;
|
|
|
|
// We also need to update the current state so that we don't
|
|
// end-up doing too much work during the next transaction.
|
|
// NOTE: We actually don't need hold the transaction lock here
|
|
// because State::w and State::h are only accessed from
|
|
// this thread
|
|
Layer::State& editTemp(currentState());
|
|
editTemp.w = editDraw.w;
|
|
editTemp.h = editDraw.h;
|
|
|
|
// recompute visible region
|
|
recomputeVisibleRegions = true;
|
|
}
|
|
|
|
// we now have the correct size, unfreeze the screen
|
|
mFreezeLock.clear();
|
|
}
|
|
|
|
// get the crop region
|
|
setBufferCrop( lcblk->getCrop(buf) );
|
|
|
|
// get the transformation
|
|
setBufferTransform( lcblk->getTransform(buf) );
|
|
|
|
} else {
|
|
// this should not happen unless we ran out of memory while
|
|
// allocating the buffer. we're hoping that things will get back
|
|
// to normal the next time the app tries to draw into this buffer.
|
|
// meanwhile, pretend the screen didn't update.
|
|
mPostedDirtyRegion.clear();
|
|
}
|
|
|
|
if (lcblk->getQueuedCount()) {
|
|
// signal an event if we have more buffers waiting
|
|
mFlinger->signalEvent();
|
|
}
|
|
|
|
/* a buffer was posted, so we need to call reloadTexture(), which
|
|
* will update our internal data structures (eg: EGLImageKHR or
|
|
* texture names). we need to do this even if mPostedDirtyRegion is
|
|
* empty -- it's orthogonal to the fact that a new buffer was posted,
|
|
* for instance, a degenerate case could be that the user did an empty
|
|
* update but repainted the buffer with appropriate content (after a
|
|
* resize for instance).
|
|
*/
|
|
reloadTexture( mPostedDirtyRegion );
|
|
}
|
|
|
|
void Layer::unlockPageFlip(
|
|
const Transform& planeTransform, Region& outDirtyRegion)
|
|
{
|
|
Region dirtyRegion(mPostedDirtyRegion);
|
|
if (!dirtyRegion.isEmpty()) {
|
|
mPostedDirtyRegion.clear();
|
|
// The dirty region is given in the layer's coordinate space
|
|
// transform the dirty region by the surface's transformation
|
|
// and the global transformation.
|
|
const Layer::State& s(drawingState());
|
|
const Transform tr(planeTransform * s.transform);
|
|
dirtyRegion = tr.transform(dirtyRegion);
|
|
|
|
// At this point, the dirty region is in screen space.
|
|
// Make sure it's constrained by the visible region (which
|
|
// is in screen space as well).
|
|
dirtyRegion.andSelf(visibleRegionScreen);
|
|
outDirtyRegion.orSelf(dirtyRegion);
|
|
}
|
|
if (visibleRegionScreen.isEmpty()) {
|
|
// an invisible layer should not hold a freeze-lock
|
|
// (because it may never be updated and therefore never release it)
|
|
mFreezeLock.clear();
|
|
}
|
|
}
|
|
|
|
void Layer::dump(String8& result, char* buffer, size_t SIZE) const
|
|
{
|
|
LayerBaseClient::dump(result, buffer, SIZE);
|
|
|
|
ClientRef::Access sharedClient(mUserClientRef);
|
|
SharedBufferServer* lcblk(sharedClient.get());
|
|
uint32_t totalTime = 0;
|
|
if (lcblk) {
|
|
SharedBufferStack::Statistics stats = lcblk->getStats();
|
|
totalTime= stats.totalTime;
|
|
result.append( lcblk->dump(" ") );
|
|
}
|
|
|
|
sp<const GraphicBuffer> buf0(getBuffer(0));
|
|
sp<const GraphicBuffer> buf1(getBuffer(1));
|
|
uint32_t w0=0, h0=0, s0=0;
|
|
uint32_t w1=0, h1=0, s1=0;
|
|
if (buf0 != 0) {
|
|
w0 = buf0->getWidth();
|
|
h0 = buf0->getHeight();
|
|
s0 = buf0->getStride();
|
|
}
|
|
if (buf1 != 0) {
|
|
w1 = buf1->getWidth();
|
|
h1 = buf1->getHeight();
|
|
s1 = buf1->getStride();
|
|
}
|
|
snprintf(buffer, SIZE,
|
|
" "
|
|
"format=%2d, [%3ux%3u:%3u] [%3ux%3u:%3u],"
|
|
" freezeLock=%p, dq-q-time=%u us\n",
|
|
mFormat, w0, h0, s0, w1, h1, s1,
|
|
getFreezeLock().get(), totalTime);
|
|
|
|
result.append(buffer);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
Layer::ClientRef::ClientRef()
|
|
: mControlBlock(0), mToken(-1) {
|
|
}
|
|
|
|
Layer::ClientRef::~ClientRef() {
|
|
}
|
|
|
|
int32_t Layer::ClientRef::getToken() const {
|
|
Mutex::Autolock _l(mLock);
|
|
return mToken;
|
|
}
|
|
|
|
sp<UserClient> Layer::ClientRef::getClient() const {
|
|
Mutex::Autolock _l(mLock);
|
|
return mUserClient.promote();
|
|
}
|
|
|
|
status_t Layer::ClientRef::setToken(const sp<UserClient>& uc,
|
|
const sp<SharedBufferServer>& sharedClient, int32_t token) {
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
{ // scope for strong mUserClient reference
|
|
sp<UserClient> userClient(mUserClient.promote());
|
|
if (mUserClient != 0 && mControlBlock != 0) {
|
|
mControlBlock->setStatus(NO_INIT);
|
|
}
|
|
}
|
|
|
|
mUserClient = uc;
|
|
mToken = token;
|
|
mControlBlock = sharedClient;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
sp<UserClient> Layer::ClientRef::getUserClientUnsafe() const {
|
|
return mUserClient.promote();
|
|
}
|
|
|
|
// this class gives us access to SharedBufferServer safely
|
|
// it makes sure the UserClient (and its associated shared memory)
|
|
// won't go away while we're accessing it.
|
|
Layer::ClientRef::Access::Access(const ClientRef& ref)
|
|
: mControlBlock(0)
|
|
{
|
|
Mutex::Autolock _l(ref.mLock);
|
|
mUserClientStrongRef = ref.mUserClient.promote();
|
|
if (mUserClientStrongRef != 0)
|
|
mControlBlock = ref.mControlBlock;
|
|
}
|
|
|
|
Layer::ClientRef::Access::~Access()
|
|
{
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
Layer::BufferManager::BufferManager(TextureManager& tm)
|
|
: mNumBuffers(NUM_BUFFERS), mTextureManager(tm),
|
|
mActiveBufferIndex(-1), mFailover(false)
|
|
{
|
|
}
|
|
|
|
Layer::BufferManager::~BufferManager()
|
|
{
|
|
}
|
|
|
|
status_t Layer::BufferManager::resize(size_t size,
|
|
const sp<SurfaceFlinger>& flinger, EGLDisplay dpy)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
if (size < mNumBuffers) {
|
|
// If there is an active texture, move it into slot 0 if needed
|
|
if (mActiveBufferIndex > 0) {
|
|
BufferData activeBufferData = mBufferData[mActiveBufferIndex];
|
|
mBufferData[mActiveBufferIndex] = mBufferData[0];
|
|
mBufferData[0] = activeBufferData;
|
|
mActiveBufferIndex = 0;
|
|
}
|
|
|
|
// Free the buffers that are no longer needed.
|
|
for (size_t i = size; i < mNumBuffers; i++) {
|
|
mBufferData[i].buffer = 0;
|
|
|
|
// Create a message to destroy the textures on SurfaceFlinger's GL
|
|
// thread.
|
|
class MessageDestroyTexture : public MessageBase {
|
|
Image mTexture;
|
|
EGLDisplay mDpy;
|
|
public:
|
|
MessageDestroyTexture(const Image& texture, EGLDisplay dpy)
|
|
: mTexture(texture), mDpy(dpy) { }
|
|
virtual bool handler() {
|
|
status_t err = Layer::BufferManager::destroyTexture(
|
|
&mTexture, mDpy);
|
|
LOGE_IF(err<0, "error destroying texture: %d (%s)",
|
|
mTexture.name, strerror(-err));
|
|
return true; // XXX: err == 0; ????
|
|
}
|
|
};
|
|
|
|
MessageDestroyTexture *msg = new MessageDestroyTexture(
|
|
mBufferData[i].texture, dpy);
|
|
|
|
// Don't allow this texture to be cleaned up by
|
|
// BufferManager::destroy.
|
|
mBufferData[i].texture.name = -1U;
|
|
mBufferData[i].texture.image = EGL_NO_IMAGE_KHR;
|
|
|
|
// Post the message to the SurfaceFlinger object.
|
|
flinger->postMessageAsync(msg);
|
|
}
|
|
}
|
|
|
|
mNumBuffers = size;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// only for debugging
|
|
sp<GraphicBuffer> Layer::BufferManager::getBuffer(size_t index) const {
|
|
return mBufferData[index].buffer;
|
|
}
|
|
|
|
status_t Layer::BufferManager::setActiveBufferIndex(size_t index) {
|
|
BufferData const * const buffers = mBufferData;
|
|
Mutex::Autolock _l(mLock);
|
|
mActiveBuffer = buffers[index].buffer;
|
|
mActiveBufferIndex = index;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
size_t Layer::BufferManager::getActiveBufferIndex() const {
|
|
return mActiveBufferIndex;
|
|
}
|
|
|
|
Texture Layer::BufferManager::getActiveTexture() const {
|
|
Texture res;
|
|
if (mFailover || mActiveBufferIndex<0) {
|
|
res = mFailoverTexture;
|
|
} else {
|
|
static_cast<Image&>(res) = mBufferData[mActiveBufferIndex].texture;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
sp<GraphicBuffer> Layer::BufferManager::getActiveBuffer() const {
|
|
return mActiveBuffer;
|
|
}
|
|
|
|
bool Layer::BufferManager::hasActiveBuffer() const {
|
|
return mActiveBufferIndex >= 0;
|
|
}
|
|
|
|
sp<GraphicBuffer> Layer::BufferManager::detachBuffer(size_t index)
|
|
{
|
|
BufferData* const buffers = mBufferData;
|
|
sp<GraphicBuffer> buffer;
|
|
Mutex::Autolock _l(mLock);
|
|
buffer = buffers[index].buffer;
|
|
buffers[index].buffer = 0;
|
|
return buffer;
|
|
}
|
|
|
|
status_t Layer::BufferManager::attachBuffer(size_t index,
|
|
const sp<GraphicBuffer>& buffer)
|
|
{
|
|
BufferData* const buffers = mBufferData;
|
|
Mutex::Autolock _l(mLock);
|
|
buffers[index].buffer = buffer;
|
|
buffers[index].texture.dirty = true;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t Layer::BufferManager::destroy(EGLDisplay dpy)
|
|
{
|
|
BufferData* const buffers = mBufferData;
|
|
size_t num;
|
|
{ // scope for the lock
|
|
Mutex::Autolock _l(mLock);
|
|
num = mNumBuffers;
|
|
for (size_t i=0 ; i<num ; i++) {
|
|
buffers[i].buffer = 0;
|
|
}
|
|
}
|
|
for (size_t i=0 ; i<num ; i++) {
|
|
destroyTexture(&buffers[i].texture, dpy);
|
|
}
|
|
destroyTexture(&mFailoverTexture, dpy);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t Layer::BufferManager::initEglImage(EGLDisplay dpy,
|
|
const sp<GraphicBuffer>& buffer)
|
|
{
|
|
status_t err = NO_INIT;
|
|
ssize_t index = mActiveBufferIndex;
|
|
if (index >= 0) {
|
|
if (!mFailover) {
|
|
Image& texture(mBufferData[index].texture);
|
|
err = mTextureManager.initEglImage(&texture, dpy, buffer);
|
|
// if EGLImage fails, we switch to regular texture mode, and we
|
|
// free all resources associated with using EGLImages.
|
|
if (err == NO_ERROR) {
|
|
mFailover = false;
|
|
destroyTexture(&mFailoverTexture, dpy);
|
|
} else {
|
|
mFailover = true;
|
|
const size_t num = mNumBuffers;
|
|
for (size_t i=0 ; i<num ; i++) {
|
|
destroyTexture(&mBufferData[i].texture, dpy);
|
|
}
|
|
}
|
|
} else {
|
|
// we failed once, don't try again
|
|
err = BAD_VALUE;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
status_t Layer::BufferManager::loadTexture(
|
|
const Region& dirty, const GGLSurface& t)
|
|
{
|
|
return mTextureManager.loadTexture(&mFailoverTexture, dirty, t);
|
|
}
|
|
|
|
status_t Layer::BufferManager::destroyTexture(Image* tex, EGLDisplay dpy)
|
|
{
|
|
if (tex->name != -1U) {
|
|
glDeleteTextures(1, &tex->name);
|
|
tex->name = -1U;
|
|
}
|
|
if (tex->image != EGL_NO_IMAGE_KHR) {
|
|
eglDestroyImageKHR(dpy, tex->image);
|
|
tex->image = EGL_NO_IMAGE_KHR;
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
Layer::SurfaceLayer::SurfaceLayer(const sp<SurfaceFlinger>& flinger,
|
|
const sp<Layer>& owner)
|
|
: Surface(flinger, owner->getIdentity(), owner)
|
|
{
|
|
}
|
|
|
|
Layer::SurfaceLayer::~SurfaceLayer()
|
|
{
|
|
}
|
|
|
|
sp<GraphicBuffer> Layer::SurfaceLayer::requestBuffer(int index,
|
|
uint32_t w, uint32_t h, uint32_t format, uint32_t usage)
|
|
{
|
|
sp<GraphicBuffer> buffer;
|
|
sp<Layer> owner(getOwner());
|
|
if (owner != 0) {
|
|
/*
|
|
* requestBuffer() cannot be called from the main thread
|
|
* as it could cause a dead-lock, since it may have to wait
|
|
* on conditions updated my the main thread.
|
|
*/
|
|
buffer = owner->requestBuffer(index, w, h, format, usage);
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
status_t Layer::SurfaceLayer::setBufferCount(int bufferCount)
|
|
{
|
|
status_t err = DEAD_OBJECT;
|
|
sp<Layer> owner(getOwner());
|
|
if (owner != 0) {
|
|
/*
|
|
* setBufferCount() cannot be called from the main thread
|
|
* as it could cause a dead-lock, since it may have to wait
|
|
* on conditions updated my the main thread.
|
|
*/
|
|
err = owner->setBufferCount(bufferCount);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
|
|
}; // namespace android
|