ADHOC
/
replicant-frameworks_native
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
replicant-frameworks_native/libs/gui/Surface.cpp

647 lines
20 KiB
C++
Raw Blame History

/*
* 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.
*/
#define LOG_TAG "Surface"
#include <stdint.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <utils/CallStack.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <utils/threads.h>
#include <binder/IMemory.h>
#include <binder/IPCThreadState.h>
#include <gui/SurfaceTextureClient.h>
#include <ui/DisplayInfo.h>
#include <ui/GraphicBuffer.h>
#include <ui/GraphicBufferMapper.h>
#include <ui/GraphicLog.h>
#include <ui/Rect.h>
#include <surfaceflinger/ISurface.h>
#include <surfaceflinger/ISurfaceComposer.h>
#include <surfaceflinger/Surface.h>
#include <surfaceflinger/SurfaceComposerClient.h>
#include <private/surfaceflinger/LayerState.h>
namespace android {
// ----------------------------------------------------------------------
static status_t copyBlt(
const sp<GraphicBuffer>& dst,
const sp<GraphicBuffer>& src,
const Region& reg)
{
// src and dst with, height and format must be identical. no verification
// is done here.
status_t err;
uint8_t const * src_bits = NULL;
err = src->lock(GRALLOC_USAGE_SW_READ_OFTEN, reg.bounds(), (void**)&src_bits);
LOGE_IF(err, "error locking src buffer %s", strerror(-err));
uint8_t* dst_bits = NULL;
err = dst->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, reg.bounds(), (void**)&dst_bits);
LOGE_IF(err, "error locking dst buffer %s", strerror(-err));
Region::const_iterator head(reg.begin());
Region::const_iterator tail(reg.end());
if (head != tail && src_bits && dst_bits) {
const size_t bpp = bytesPerPixel(src->format);
const size_t dbpr = dst->stride * bpp;
const size_t sbpr = src->stride * bpp;
while (head != tail) {
const Rect& r(*head++);
ssize_t h = r.height();
if (h <= 0) continue;
size_t size = r.width() * bpp;
uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
if (dbpr==sbpr && size==sbpr) {
size *= h;
h = 1;
}
do {
memcpy(d, s, size);
d += dbpr;
s += sbpr;
} while (--h > 0);
}
}
if (src_bits)
src->unlock();
if (dst_bits)
dst->unlock();
return err;
}
// ============================================================================
// SurfaceControl
// ============================================================================
SurfaceControl::SurfaceControl(
const sp<SurfaceComposerClient>& client,
const sp<ISurface>& surface,
const ISurfaceComposerClient::surface_data_t& data,
uint32_t w, uint32_t h, PixelFormat format, uint32_t flags)
: mClient(client), mSurface(surface),
mToken(data.token), mIdentity(data.identity),
mWidth(data.width), mHeight(data.height), mFormat(data.format),
mFlags(flags)
{
}
SurfaceControl::~SurfaceControl()
{
destroy();
}
void SurfaceControl::destroy()
{
if (isValid()) {
mClient->destroySurface(mToken);
}
// clear all references and trigger an IPC now, to make sure things
// happen without delay, since these resources are quite heavy.
mClient.clear();
mSurface.clear();
IPCThreadState::self()->flushCommands();
}
void SurfaceControl::clear()
{
// here, the window manager tells us explicitly that we should destroy
// the surface's resource. Soon after this call, it will also release
// its last reference (which will call the dtor); however, it is possible
// that a client living in the same process still holds references which
// would delay the call to the dtor -- that is why we need this explicit
// "clear()" call.
destroy();
}
bool SurfaceControl::isSameSurface(
const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs)
{
if (lhs == 0 || rhs == 0)
return false;
return lhs->mSurface->asBinder() == rhs->mSurface->asBinder();
}
status_t SurfaceControl::setLayer(int32_t layer) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setLayer(mToken, layer);
}
status_t SurfaceControl::setPosition(int32_t x, int32_t y) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setPosition(mToken, x, y);
}
status_t SurfaceControl::setSize(uint32_t w, uint32_t h) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setSize(mToken, w, h);
}
status_t SurfaceControl::hide() {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->hide(mToken);
}
status_t SurfaceControl::show(int32_t layer) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->show(mToken, layer);
}
status_t SurfaceControl::freeze() {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->freeze(mToken);
}
status_t SurfaceControl::unfreeze() {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->unfreeze(mToken);
}
status_t SurfaceControl::setFlags(uint32_t flags, uint32_t mask) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setFlags(mToken, flags, mask);
}
status_t SurfaceControl::setTransparentRegionHint(const Region& transparent) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setTransparentRegionHint(mToken, transparent);
}
status_t SurfaceControl::setAlpha(float alpha) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setAlpha(mToken, alpha);
}
status_t SurfaceControl::setMatrix(float dsdx, float dtdx, float dsdy, float dtdy) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setMatrix(mToken, dsdx, dtdx, dsdy, dtdy);
}
status_t SurfaceControl::setFreezeTint(uint32_t tint) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setFreezeTint(mToken, tint);
}
status_t SurfaceControl::validate() const
{
if (mToken<0 || mClient==0) {
LOGE("invalid token (%d, identity=%u) or client (%p)",
mToken, mIdentity, mClient.get());
return NO_INIT;
}
return NO_ERROR;
}
status_t SurfaceControl::writeSurfaceToParcel(
const sp<SurfaceControl>& control, Parcel* parcel)
{
sp<ISurface> sur;
uint32_t identity = 0;
uint32_t width = 0;
uint32_t height = 0;
uint32_t format = 0;
uint32_t flags = 0;
if (SurfaceControl::isValid(control)) {
sur = control->mSurface;
identity = control->mIdentity;
width = control->mWidth;
height = control->mHeight;
format = control->mFormat;
flags = control->mFlags;
}
parcel->writeStrongBinder(sur!=0 ? sur->asBinder() : NULL);
parcel->writeInt32(identity);
parcel->writeInt32(width);
parcel->writeInt32(height);
parcel->writeInt32(format);
parcel->writeInt32(flags);
return NO_ERROR;
}
sp<Surface> SurfaceControl::getSurface() const
{
Mutex::Autolock _l(mLock);
if (mSurfaceData == 0) {
mSurfaceData = new Surface(const_cast<SurfaceControl*>(this));
}
return mSurfaceData;
}
// ============================================================================
// Surface
// ============================================================================
// ---------------------------------------------------------------------------
Surface::Surface(const sp<SurfaceControl>& surface)
: mInitCheck(NO_INIT),
mSurface(surface->mSurface),
mIdentity(surface->mIdentity),
mFormat(surface->mFormat), mFlags(surface->mFlags),
mWidth(surface->mWidth), mHeight(surface->mHeight)
{
init();
}
Surface::Surface(const Parcel& parcel, const sp<IBinder>& ref)
: mInitCheck(NO_INIT)
{
mSurface = interface_cast<ISurface>(ref);
mIdentity = parcel.readInt32();
mWidth = parcel.readInt32();
mHeight = parcel.readInt32();
mFormat = parcel.readInt32();
mFlags = parcel.readInt32();
init();
}
status_t Surface::writeToParcel(
const sp<Surface>& surface, Parcel* parcel)
{
sp<ISurface> sur;
uint32_t identity = 0;
uint32_t width = 0;
uint32_t height = 0;
uint32_t format = 0;
uint32_t flags = 0;
if (Surface::isValid(surface)) {
sur = surface->mSurface;
identity = surface->mIdentity;
width = surface->mWidth;
height = surface->mHeight;
format = surface->mFormat;
flags = surface->mFlags;
} else if (surface != 0 && surface->mSurface != 0) {
LOGW("Parceling invalid surface with non-NULL ISurface as NULL: "
"mSurface = %p, mIdentity = %d, mWidth = %d, mHeight = %d, "
"mFormat = %d, mFlags = 0x%08x, mInitCheck = %d",
surface->mSurface.get(), surface->mIdentity, surface->mWidth,
surface->mHeight, surface->mFormat, surface->mFlags,
surface->mInitCheck);
}
parcel->writeStrongBinder(sur!=0 ? sur->asBinder() : NULL);
parcel->writeInt32(identity);
parcel->writeInt32(width);
parcel->writeInt32(height);
parcel->writeInt32(format);
parcel->writeInt32(flags);
return NO_ERROR;
}
Mutex Surface::sCachedSurfacesLock;
DefaultKeyedVector<wp<IBinder>, wp<Surface> > Surface::sCachedSurfaces;
sp<Surface> Surface::readFromParcel(const Parcel& data) {
Mutex::Autolock _l(sCachedSurfacesLock);
sp<IBinder> binder(data.readStrongBinder());
sp<Surface> surface = sCachedSurfaces.valueFor(binder).promote();
if (surface == 0) {
surface = new Surface(data, binder);
sCachedSurfaces.add(binder, surface);
}
if (surface->mSurface == 0) {
surface = 0;
}
cleanCachedSurfacesLocked();
return surface;
}
// Remove the stale entries from the surface cache. This should only be called
// with sCachedSurfacesLock held.
void Surface::cleanCachedSurfacesLocked() {
for (int i = sCachedSurfaces.size()-1; i >= 0; --i) {
wp<Surface> s(sCachedSurfaces.valueAt(i));
if (s == 0 || s.promote() == 0) {
sCachedSurfaces.removeItemsAt(i);
}
}
}
void Surface::init()
{
ANativeWindow::setSwapInterval = setSwapInterval;
ANativeWindow::dequeueBuffer = dequeueBuffer;
ANativeWindow::cancelBuffer = cancelBuffer;
ANativeWindow::lockBuffer = lockBuffer;
ANativeWindow::queueBuffer = queueBuffer;
ANativeWindow::query = query;
ANativeWindow::perform = perform;
if (mSurface != NULL) {
sp<ISurfaceTexture> surfaceTexture(mSurface->getSurfaceTexture());
LOGE_IF(surfaceTexture==0, "got a NULL ISurfaceTexture from ISurface");
if (surfaceTexture != NULL) {
mSurfaceTextureClient = new SurfaceTextureClient(surfaceTexture);
mSurfaceTextureClient->setUsage(GraphicBuffer::USAGE_HW_RENDER);
}
DisplayInfo dinfo;
SurfaceComposerClient::getDisplayInfo(0, &dinfo);
const_cast<float&>(ANativeWindow::xdpi) = dinfo.xdpi;
const_cast<float&>(ANativeWindow::ydpi) = dinfo.ydpi;
const_cast<int&>(ANativeWindow::minSwapInterval) =
mSurfaceTextureClient->minSwapInterval;
const_cast<int&>(ANativeWindow::maxSwapInterval) =
mSurfaceTextureClient->maxSwapInterval;
const_cast<uint32_t&>(ANativeWindow::flags) = 0;
if (mSurfaceTextureClient != 0) {
mInitCheck = NO_ERROR;
}
}
}
Surface::~Surface()
{
// clear all references and trigger an IPC now, to make sure things
// happen without delay, since these resources are quite heavy.
mSurfaceTextureClient.clear();
mSurface.clear();
IPCThreadState::self()->flushCommands();
}
bool Surface::isValid() {
return mInitCheck == NO_ERROR;
}
status_t Surface::validate(bool inCancelBuffer) const
{
// check that we initialized ourself properly
if (mInitCheck != NO_ERROR) {
LOGE("invalid token (identity=%u)", mIdentity);
return mInitCheck;
}
return NO_ERROR;
}
sp<IBinder> Surface::asBinder() const {
return mSurface!=0 ? mSurface->asBinder() : 0;
}
// ----------------------------------------------------------------------------
int Surface::setSwapInterval(ANativeWindow* window, int interval) {
Surface* self = getSelf(window);
return self->setSwapInterval(interval);
}
int Surface::dequeueBuffer(ANativeWindow* window,
ANativeWindowBuffer** buffer) {
Surface* self = getSelf(window);
return self->dequeueBuffer(buffer);
}
int Surface::cancelBuffer(ANativeWindow* window,
ANativeWindowBuffer* buffer) {
Surface* self = getSelf(window);
return self->cancelBuffer(buffer);
}
int Surface::lockBuffer(ANativeWindow* window,
ANativeWindowBuffer* buffer) {
Surface* self = getSelf(window);
return self->lockBuffer(buffer);
}
int Surface::queueBuffer(ANativeWindow* window,
ANativeWindowBuffer* buffer) {
Surface* self = getSelf(window);
return self->queueBuffer(buffer);
}
int Surface::query(const ANativeWindow* window,
int what, int* value) {
const Surface* self = getSelf(window);
return self->query(what, value);
}
int Surface::perform(ANativeWindow* window,
int operation, ...) {
va_list args;
va_start(args, operation);
Surface* self = getSelf(window);
int res = self->perform(operation, args);
va_end(args);
return res;
}
// ----------------------------------------------------------------------------
int Surface::setSwapInterval(int interval) {
return mSurfaceTextureClient->setSwapInterval(interval);
}
int Surface::dequeueBuffer(ANativeWindowBuffer** buffer) {
status_t err = mSurfaceTextureClient->dequeueBuffer(buffer);
if (err == NO_ERROR) {
mDirtyRegion.set(buffer[0]->width, buffer[0]->height);
}
return err;
}
int Surface::cancelBuffer(ANativeWindowBuffer* buffer) {
return mSurfaceTextureClient->cancelBuffer(buffer);
}
int Surface::lockBuffer(ANativeWindowBuffer* buffer) {
return mSurfaceTextureClient->lockBuffer(buffer);
}
int Surface::queueBuffer(ANativeWindowBuffer* buffer) {
return mSurfaceTextureClient->queueBuffer(buffer);
}
int Surface::query(int what, int* value) const {
switch (what) {
case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER:
// TODO: this is not needed anymore
*value = 1;
return NO_ERROR;
case NATIVE_WINDOW_CONCRETE_TYPE:
// TODO: this is not needed anymore
*value = NATIVE_WINDOW_SURFACE;
return NO_ERROR;
}
return mSurfaceTextureClient->query(what, value);
}
int Surface::perform(int operation, va_list args) {
return mSurfaceTextureClient->perform(operation, args);
}
// ----------------------------------------------------------------------------
int Surface::getConnectedApi() const {
return mSurfaceTextureClient->getConnectedApi();
}
// ----------------------------------------------------------------------------
status_t Surface::lock(SurfaceInfo* info, bool blocking) {
return Surface::lock(info, NULL, blocking);
}
status_t Surface::lock(SurfaceInfo* other, Region* dirtyIn, bool blocking)
{
if (getConnectedApi()) {
LOGE("Surface::lock(%p) failed. Already connected to another API",
(ANativeWindow*)this);
CallStack stack;
stack.update();
stack.dump("");
return INVALID_OPERATION;
}
if (mApiLock.tryLock() != NO_ERROR) {
LOGE("calling Surface::lock from different threads!");
CallStack stack;
stack.update();
stack.dump("");
return WOULD_BLOCK;
}
/* Here we're holding mApiLock */
if (mLockedBuffer != 0) {
LOGE("Surface::lock failed, already locked");
mApiLock.unlock();
return INVALID_OPERATION;
}
// we're intending to do software rendering from this point
mSurfaceTextureClient->setUsage(
GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
ANativeWindowBuffer* out;
status_t err = mSurfaceTextureClient->dequeueBuffer(&out);
LOGE_IF(err, "dequeueBuffer failed (%s)", strerror(-err));
if (err == NO_ERROR) {
sp<GraphicBuffer> backBuffer(GraphicBuffer::getSelf(out));
err = mSurfaceTextureClient->lockBuffer(backBuffer.get());
LOGE_IF(err, "lockBuffer (handle=%p) failed (%s)",
backBuffer->handle, strerror(-err));
if (err == NO_ERROR) {
const Rect bounds(backBuffer->width, backBuffer->height);
const Region boundsRegion(bounds);
Region scratch(boundsRegion);
Region& newDirtyRegion(dirtyIn ? *dirtyIn : scratch);
newDirtyRegion &= boundsRegion;
// figure out if we can copy the frontbuffer back
const sp<GraphicBuffer>& frontBuffer(mPostedBuffer);
const bool canCopyBack = (frontBuffer != 0 &&
backBuffer->width == frontBuffer->width &&
backBuffer->height == frontBuffer->height &&
backBuffer->format == frontBuffer->format &&
!(mFlags & ISurfaceComposer::eDestroyBackbuffer));
// the dirty region we report to surfaceflinger is the one
// given by the user (as opposed to the one *we* return to the
// user).
mDirtyRegion = newDirtyRegion;
if (canCopyBack) {
// copy the area that is invalid and not repainted this round
const Region copyback(mOldDirtyRegion.subtract(newDirtyRegion));
if (!copyback.isEmpty())
copyBlt(backBuffer, frontBuffer, copyback);
} else {
// if we can't copy-back anything, modify the user's dirty
// region to make sure they redraw the whole buffer
newDirtyRegion = boundsRegion;
}
// keep track of the are of the buffer that is "clean"
// (ie: that will be redrawn)
mOldDirtyRegion = newDirtyRegion;
void* vaddr;
status_t res = backBuffer->lock(
GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
newDirtyRegion.bounds(), &vaddr);
LOGW_IF(res, "failed locking buffer (handle = %p)",
backBuffer->handle);
mLockedBuffer = backBuffer;
other->w = backBuffer->width;
other->h = backBuffer->height;
other->s = backBuffer->stride;
other->usage = backBuffer->usage;
other->format = backBuffer->format;
other->bits = vaddr;
}
}
mApiLock.unlock();
return err;
}
status_t Surface::unlockAndPost()
{
if (mLockedBuffer == 0) {
LOGE("Surface::unlockAndPost failed, no locked buffer");
return INVALID_OPERATION;
}
status_t err = mLockedBuffer->unlock();
LOGE_IF(err, "failed unlocking buffer (%p)", mLockedBuffer->handle);
err = mSurfaceTextureClient->queueBuffer(mLockedBuffer.get());
LOGE_IF(err, "queueBuffer (handle=%p) failed (%s)",
mLockedBuffer->handle, strerror(-err));
mPostedBuffer = mLockedBuffer;
mLockedBuffer = 0;
return err;
}
// ----------------------------------------------------------------------------
}; // namespace android
Reference in New Issue View Git Blame Copy Permalink