1028 lines
31 KiB
C++
1028 lines
31 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "SurfaceComposerClient"
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#include <stdint.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <cutils/memory.h>
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#include <utils/Atomic.h>
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#include <utils/Errors.h>
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#include <utils/threads.h>
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#include <utils/KeyedVector.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <binder/IMemory.h>
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#include <utils/Log.h>
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#include <ui/ISurfaceComposer.h>
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#include <ui/ISurfaceFlingerClient.h>
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#include <ui/ISurface.h>
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#include <ui/SurfaceComposerClient.h>
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#include <ui/DisplayInfo.h>
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#include <ui/Rect.h>
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#include <ui/Point.h>
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#include <private/ui/SharedState.h>
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#include <private/ui/LayerState.h>
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#include <private/ui/SurfaceFlingerSynchro.h>
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#include <pixelflinger/pixelflinger.h>
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#include <binder/BpBinder.h>
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#define VERBOSE(...) ((void)0)
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//#define VERBOSE LOGD
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#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
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#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
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namespace android {
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// ---------------------------------------------------------------------------
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// Must not be holding SurfaceComposerClient::mLock when acquiring gLock here.
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static Mutex gLock;
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static sp<ISurfaceComposer> gSurfaceManager;
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static DefaultKeyedVector< sp<IBinder>, sp<SurfaceComposerClient> > gActiveConnections;
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static SortedVector<sp<SurfaceComposerClient> > gOpenTransactions;
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static sp<IMemory> gServerCblkMemory;
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static volatile surface_flinger_cblk_t* gServerCblk;
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const sp<ISurfaceComposer>& _get_surface_manager()
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{
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if (gSurfaceManager != 0) {
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return gSurfaceManager;
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}
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sp<IBinder> binder;
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sp<IServiceManager> sm = defaultServiceManager();
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do {
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binder = sm->getService(String16("SurfaceFlinger"));
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if (binder == 0) {
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LOGW("SurfaceFlinger not published, waiting...");
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usleep(500000); // 0.5 s
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}
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} while(binder == 0);
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sp<ISurfaceComposer> sc(interface_cast<ISurfaceComposer>(binder));
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Mutex::Autolock _l(gLock);
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if (gSurfaceManager == 0) {
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gSurfaceManager = sc;
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}
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return gSurfaceManager;
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}
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static volatile surface_flinger_cblk_t const * get_cblk()
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{
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if (gServerCblk == 0) {
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const sp<ISurfaceComposer>& sm(_get_surface_manager());
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Mutex::Autolock _l(gLock);
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if (gServerCblk == 0) {
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gServerCblkMemory = sm->getCblk();
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LOGE_IF(gServerCblkMemory==0, "Can't get server control block");
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gServerCblk = (surface_flinger_cblk_t *)gServerCblkMemory->pointer();
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LOGE_IF(gServerCblk==0, "Can't get server control block address");
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}
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}
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return gServerCblk;
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}
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// ---------------------------------------------------------------------------
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static void copyBlt(const GGLSurface& dst,
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const GGLSurface& src, const Region& reg)
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{
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Region::iterator iterator(reg);
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if (iterator) {
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// NOTE: dst and src must be the same format
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Rect r;
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const size_t bpp = bytesPerPixel(src.format);
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const size_t dbpr = dst.stride * bpp;
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const size_t sbpr = src.stride * bpp;
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while (iterator.iterate(&r)) {
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ssize_t h = r.bottom - r.top;
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if (h) {
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size_t size = (r.right - r.left) * bpp;
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uint8_t* s = src.data + (r.left + src.stride * r.top) * bpp;
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uint8_t* d = dst.data + (r.left + dst.stride * r.top) * bpp;
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if (dbpr==sbpr && size==sbpr) {
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size *= h;
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h = 1;
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}
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do {
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memcpy(d, s, size);
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d += dbpr;
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s += sbpr;
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} while (--h > 0);
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}
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}
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}
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}
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// ---------------------------------------------------------------------------
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surface_flinger_cblk_t::surface_flinger_cblk_t()
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{
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}
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// ---------------------------------------------------------------------------
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per_client_cblk_t::per_client_cblk_t()
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{
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}
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// these functions are used by the clients
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inline status_t per_client_cblk_t::validate(size_t i) const {
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if (uint32_t(i) >= NUM_LAYERS_MAX)
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return BAD_INDEX;
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if (layers[i].swapState & eInvalidSurface)
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return NO_MEMORY;
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return NO_ERROR;
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}
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int32_t per_client_cblk_t::lock_layer(size_t i, uint32_t flags)
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{
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int32_t index;
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uint32_t state;
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int timeout = 0;
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status_t result;
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layer_cblk_t * const layer = layers + i;
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const bool blocking = flags & BLOCKING;
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const bool inspect = flags & INSPECT;
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do {
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state = layer->swapState;
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if (UNLIKELY((state&(eFlipRequested|eNextFlipPending)) == eNextFlipPending)) {
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LOGE("eNextFlipPending set but eFlipRequested not set, "
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"layer=%d (lcblk=%p), state=%08x",
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int(i), layer, int(state));
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return INVALID_OPERATION;
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}
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if (UNLIKELY(state&eLocked)) {
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LOGE("eLocked set when entering lock_layer(), "
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"layer=%d (lcblk=%p), state=%08x",
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int(i), layer, int(state));
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return WOULD_BLOCK;
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}
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if (state & (eFlipRequested | eNextFlipPending | eResizeRequested
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| eInvalidSurface))
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{
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int32_t resizeIndex;
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Mutex::Autolock _l(lock);
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// might block for a very short amount of time
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// will never cause the server to block (trylock())
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goto start_loop_here;
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// We block the client if:
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// eNextFlipPending: we've used both buffers already, so we need to
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// wait for one to become availlable.
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// eResizeRequested: the buffer we're going to acquire is being
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// resized. Block until it is done.
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// eFlipRequested && eBusy: the buffer we're going to acquire is
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// currently in use by the server.
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// eInvalidSurface: this is a special case, we don't block in this
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// case, we just return an error.
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while((state & (eNextFlipPending|eInvalidSurface)) ||
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(state & ((resizeIndex) ? eResizeBuffer1 : eResizeBuffer0)) ||
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((state & (eFlipRequested|eBusy)) == (eFlipRequested|eBusy)) )
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{
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if (state & eInvalidSurface)
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return NO_MEMORY;
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if (!blocking)
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return WOULD_BLOCK;
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timeout = 0;
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result = cv.waitRelative(lock, seconds(1));
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if (__builtin_expect(result!=NO_ERROR, false)) {
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const int newState = layer->swapState;
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LOGW( "lock_layer timed out (is the CPU pegged?) "
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"layer=%d, lcblk=%p, state=%08x (was %08x)",
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int(i), layer, newState, int(state));
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timeout = newState != int(state);
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}
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start_loop_here:
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state = layer->swapState;
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resizeIndex = (state&eIndex) ^ ((state&eFlipRequested)>>1);
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}
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LOGW_IF(timeout,
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"lock_layer() timed out but didn't appear to need "
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"to be locked and we recovered "
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"(layer=%d, lcblk=%p, state=%08x)",
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int(i), layer, int(state));
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}
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// eFlipRequested is not set and cannot be set by another thread: it's
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// safe to use the first buffer without synchronization.
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// Choose the index depending on eFlipRequested.
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// When it's set, choose the 'other' buffer.
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index = (state&eIndex) ^ ((state&eFlipRequested)>>1);
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// make sure this buffer is valid
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if (layer->surface[index].bits_offset < 0) {
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return status_t(layer->surface[index].bits_offset);
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}
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if (inspect) {
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// we just want to inspect this layer. don't lock it.
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goto done;
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}
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// last thing before we're done, we need to atomically lock the state
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} while (android_atomic_cmpxchg(state, state|eLocked, &(layer->swapState)));
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VERBOSE("locked layer=%d (lcblk=%p), buffer=%d, state=0x%08x",
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int(i), layer, int(index), int(state));
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// store the index of the locked buffer (for client use only)
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layer->flags &= ~eBufferIndex;
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layer->flags |= ((index << eBufferIndexShift) & eBufferIndex);
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done:
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return index;
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}
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uint32_t per_client_cblk_t::unlock_layer_and_post(size_t i)
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{
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// atomically set eFlipRequested and clear eLocked and optionnaly
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// set eNextFlipPending if eFlipRequested was already set
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layer_cblk_t * const layer = layers + i;
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int32_t oldvalue, newvalue;
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do {
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oldvalue = layer->swapState;
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// get current value
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newvalue = oldvalue & ~eLocked;
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// clear eLocked
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newvalue |= eFlipRequested;
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// set eFlipRequested
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if (oldvalue & eFlipRequested)
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newvalue |= eNextFlipPending;
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// if eFlipRequested was alread set, set eNextFlipPending
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} while (android_atomic_cmpxchg(oldvalue, newvalue, &(layer->swapState)));
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VERBOSE("request pageflip for layer=%d, buffer=%d, state=0x%08x",
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int(i), int((layer->flags & eBufferIndex) >> eBufferIndexShift),
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int(newvalue));
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// from this point, the server can kick in at anytime and use the first
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// buffer, so we cannot use it anymore, and we must use the 'other'
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// buffer instead (or wait if it is not availlable yet, see lock_layer).
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return newvalue;
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}
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void per_client_cblk_t::unlock_layer(size_t i)
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{
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layer_cblk_t * const layer = layers + i;
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android_atomic_and(~eLocked, &layer->swapState);
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}
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// ---------------------------------------------------------------------------
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static inline int compare_type( const layer_state_t& lhs,
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const layer_state_t& rhs) {
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if (lhs.surface < rhs.surface) return -1;
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if (lhs.surface > rhs.surface) return 1;
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return 0;
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}
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SurfaceComposerClient::SurfaceComposerClient()
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{
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const sp<ISurfaceComposer>& sm(_get_surface_manager());
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if (sm == 0) {
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_init(0, 0);
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return;
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}
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_init(sm, sm->createConnection());
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if (mClient != 0) {
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Mutex::Autolock _l(gLock);
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VERBOSE("Adding client %p to map", this);
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gActiveConnections.add(mClient->asBinder(), this);
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}
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}
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SurfaceComposerClient::SurfaceComposerClient(
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const sp<ISurfaceComposer>& sm, const sp<IBinder>& conn)
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{
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_init(sm, interface_cast<ISurfaceFlingerClient>(conn));
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}
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void SurfaceComposerClient::_init(
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const sp<ISurfaceComposer>& sm, const sp<ISurfaceFlingerClient>& conn)
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{
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VERBOSE("Creating client %p, conn %p", this, conn.get());
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mSignalServer = 0;
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mPrebuiltLayerState = 0;
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mTransactionOpen = 0;
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mStatus = NO_ERROR;
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mControl = 0;
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mClient = conn;
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if (mClient == 0) {
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mStatus = NO_INIT;
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return;
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}
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mClient->getControlBlocks(&mControlMemory);
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mSignalServer = new SurfaceFlingerSynchro(sm);
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mControl = static_cast<per_client_cblk_t *>(mControlMemory->pointer());
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}
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SurfaceComposerClient::~SurfaceComposerClient()
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{
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VERBOSE("Destroying client %p, conn %p", this, mClient.get());
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dispose();
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}
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status_t SurfaceComposerClient::initCheck() const
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{
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return mStatus;
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}
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status_t SurfaceComposerClient::validateSurface(
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per_client_cblk_t const* cblk, Surface const * surface)
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{
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SurfaceID index = surface->ID();
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if (cblk == 0) {
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LOGE("cblk is null (surface id=%d, identity=%u)",
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index, surface->getIdentity());
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return NO_INIT;
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}
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status_t err = cblk->validate(index);
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if (err != NO_ERROR) {
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LOGE("surface (id=%d, identity=%u) is invalid, err=%d (%s)",
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index, surface->getIdentity(), err, strerror(-err));
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return err;
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}
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if (surface->getIdentity() != uint32_t(cblk->layers[index].identity)) {
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LOGE("using an invalid surface id=%d, identity=%u should be %d",
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index, surface->getIdentity(), cblk->layers[index].identity);
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return NO_INIT;
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}
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return NO_ERROR;
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}
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sp<IBinder> SurfaceComposerClient::connection() const
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{
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return (mClient != 0) ? mClient->asBinder() : 0;
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}
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sp<SurfaceComposerClient>
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SurfaceComposerClient::clientForConnection(const sp<IBinder>& conn)
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{
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sp<SurfaceComposerClient> client;
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{ // scope for lock
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Mutex::Autolock _l(gLock);
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client = gActiveConnections.valueFor(conn);
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}
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if (client == 0) {
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// Need to make a new client.
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const sp<ISurfaceComposer>& sm(_get_surface_manager());
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client = new SurfaceComposerClient(sm, conn);
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if (client != 0 && client->initCheck() == NO_ERROR) {
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Mutex::Autolock _l(gLock);
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gActiveConnections.add(conn, client);
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//LOGD("we have %d connections", gActiveConnections.size());
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} else {
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client.clear();
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}
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}
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return client;
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}
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void SurfaceComposerClient::dispose()
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{
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// this can be called more than once.
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sp<IMemory> controlMemory;
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sp<ISurfaceFlingerClient> client;
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sp<IMemoryHeap> surfaceHeap;
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{
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Mutex::Autolock _lg(gLock);
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Mutex::Autolock _lm(mLock);
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delete mSignalServer;
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mSignalServer = 0;
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if (mClient != 0) {
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client = mClient;
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mClient.clear();
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ssize_t i = gActiveConnections.indexOfKey(client->asBinder());
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if (i >= 0 && gActiveConnections.valueAt(i) == this) {
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VERBOSE("Removing client %p from map at %d", this, int(i));
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gActiveConnections.removeItemsAt(i);
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}
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}
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delete mPrebuiltLayerState;
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mPrebuiltLayerState = 0;
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controlMemory = mControlMemory;
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surfaceHeap = mSurfaceHeap;
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mControlMemory.clear();
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mSurfaceHeap.clear();
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mControl = 0;
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mStatus = NO_INIT;
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}
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}
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status_t SurfaceComposerClient::getDisplayInfo(
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DisplayID dpy, DisplayInfo* info)
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{
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if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
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return BAD_VALUE;
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volatile surface_flinger_cblk_t const * cblk = get_cblk();
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volatile display_cblk_t const * dcblk = cblk->displays + dpy;
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info->w = dcblk->w;
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info->h = dcblk->h;
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info->orientation = dcblk->orientation;
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info->xdpi = dcblk->xdpi;
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info->ydpi = dcblk->ydpi;
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info->fps = dcblk->fps;
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info->density = dcblk->density;
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return getPixelFormatInfo(dcblk->format, &(info->pixelFormatInfo));
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}
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ssize_t SurfaceComposerClient::getDisplayWidth(DisplayID dpy)
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{
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if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
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return BAD_VALUE;
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volatile surface_flinger_cblk_t const * cblk = get_cblk();
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volatile display_cblk_t const * dcblk = cblk->displays + dpy;
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return dcblk->w;
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}
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ssize_t SurfaceComposerClient::getDisplayHeight(DisplayID dpy)
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{
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if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
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return BAD_VALUE;
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volatile surface_flinger_cblk_t const * cblk = get_cblk();
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volatile display_cblk_t const * dcblk = cblk->displays + dpy;
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return dcblk->h;
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}
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ssize_t SurfaceComposerClient::getDisplayOrientation(DisplayID dpy)
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{
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if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
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return BAD_VALUE;
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volatile surface_flinger_cblk_t const * cblk = get_cblk();
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volatile display_cblk_t const * dcblk = cblk->displays + dpy;
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return dcblk->orientation;
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}
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ssize_t SurfaceComposerClient::getNumberOfDisplays()
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|
{
|
|
volatile surface_flinger_cblk_t const * cblk = get_cblk();
|
|
uint32_t connected = cblk->connected;
|
|
int n = 0;
|
|
while (connected) {
|
|
if (connected&1) n++;
|
|
connected >>= 1;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
sp<Surface> SurfaceComposerClient::createSurface(
|
|
int pid,
|
|
DisplayID display,
|
|
uint32_t w,
|
|
uint32_t h,
|
|
PixelFormat format,
|
|
uint32_t flags)
|
|
{
|
|
sp<Surface> result;
|
|
if (mStatus == NO_ERROR) {
|
|
ISurfaceFlingerClient::surface_data_t data;
|
|
sp<ISurface> surface = mClient->createSurface(&data, pid,
|
|
display, w, h, format, flags);
|
|
if (surface != 0) {
|
|
if (uint32_t(data.token) < NUM_LAYERS_MAX) {
|
|
result = new Surface(this, surface, data, w, h, format, flags);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::destroySurface(SurfaceID sid)
|
|
{
|
|
if (mStatus != NO_ERROR)
|
|
return mStatus;
|
|
|
|
// it's okay to destroy a surface while a transaction is open,
|
|
// (transactions really are a client-side concept)
|
|
// however, this indicates probably a misuse of the API or a bug
|
|
// in the client code.
|
|
LOGW_IF(mTransactionOpen,
|
|
"Destroying surface while a transaction is open. "
|
|
"Client %p: destroying surface %d, mTransactionOpen=%d",
|
|
this, sid, mTransactionOpen);
|
|
|
|
status_t err = mClient->destroySurface(sid);
|
|
return err;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::nextBuffer(Surface* surface,
|
|
Surface::SurfaceInfo* info)
|
|
{
|
|
SurfaceID index = surface->ID();
|
|
per_client_cblk_t* const cblk = mControl;
|
|
status_t err = validateSurface(cblk, surface);
|
|
if (err != NO_ERROR)
|
|
return err;
|
|
|
|
int32_t backIdx = surface->mBackbufferIndex;
|
|
layer_cblk_t* const lcblk = &(cblk->layers[index]);
|
|
const surface_info_t* const front = lcblk->surface + (1-backIdx);
|
|
info->w = front->w;
|
|
info->h = front->h;
|
|
info->format = front->format;
|
|
info->base = surface->heapBase(1-backIdx);
|
|
info->bits = reinterpret_cast<void*>(intptr_t(info->base) + front->bits_offset);
|
|
info->bpr = front->bpr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::lockSurface(
|
|
Surface* surface,
|
|
Surface::SurfaceInfo* other,
|
|
Region* dirty,
|
|
bool blocking)
|
|
{
|
|
Mutex::Autolock _l(surface->getLock());
|
|
|
|
SurfaceID index = surface->ID();
|
|
per_client_cblk_t* const cblk = mControl;
|
|
status_t err = validateSurface(cblk, surface);
|
|
if (err != NO_ERROR)
|
|
return err;
|
|
|
|
int32_t backIdx = cblk->lock_layer(size_t(index),
|
|
per_client_cblk_t::BLOCKING);
|
|
if (backIdx >= 0) {
|
|
surface->mBackbufferIndex = backIdx;
|
|
layer_cblk_t* const lcblk = &(cblk->layers[index]);
|
|
const surface_info_t* const back = lcblk->surface + backIdx;
|
|
const surface_info_t* const front = lcblk->surface + (1-backIdx);
|
|
other->w = back->w;
|
|
other->h = back->h;
|
|
other->format = back->format;
|
|
other->base = surface->heapBase(backIdx);
|
|
other->bits = reinterpret_cast<void*>(intptr_t(other->base) + back->bits_offset);
|
|
other->bpr = back->bpr;
|
|
|
|
const Rect bounds(other->w, other->h);
|
|
Region newDirtyRegion;
|
|
|
|
if (back->flags & surface_info_t::eBufferDirty) {
|
|
/* it is safe to write *back here, because we're guaranteed
|
|
* SurfaceFlinger is not touching it (since it just granted
|
|
* access to us) */
|
|
const_cast<surface_info_t*>(back)->flags &=
|
|
~surface_info_t::eBufferDirty;
|
|
|
|
// content is meaningless in this case and the whole surface
|
|
// needs to be redrawn.
|
|
|
|
newDirtyRegion.set(bounds);
|
|
if (dirty) {
|
|
*dirty = newDirtyRegion;
|
|
}
|
|
|
|
//if (bytesPerPixel(other->format) == 4) {
|
|
// android_memset32(
|
|
// (uint32_t*)other->bits, 0xFF00FF00, other->h * other->bpr);
|
|
//} else {
|
|
// android_memset16( // fill with green
|
|
// (uint16_t*)other->bits, 0x7E0, other->h * other->bpr);
|
|
//}
|
|
}
|
|
else
|
|
{
|
|
if (dirty) {
|
|
dirty->andSelf(Region(bounds));
|
|
newDirtyRegion = *dirty;
|
|
} else {
|
|
newDirtyRegion.set(bounds);
|
|
}
|
|
|
|
Region copyback;
|
|
if (!(lcblk->flags & eNoCopyBack)) {
|
|
const Region previousDirtyRegion(surface->dirtyRegion());
|
|
copyback = previousDirtyRegion.subtract(newDirtyRegion);
|
|
}
|
|
|
|
if (!copyback.isEmpty()) {
|
|
// copy front to back
|
|
GGLSurface cb;
|
|
cb.version = sizeof(GGLSurface);
|
|
cb.width = back->w;
|
|
cb.height = back->h;
|
|
cb.stride = back->stride;
|
|
cb.data = (GGLubyte*)surface->heapBase(backIdx);
|
|
cb.data += back->bits_offset;
|
|
cb.format = back->format;
|
|
|
|
GGLSurface t;
|
|
t.version = sizeof(GGLSurface);
|
|
t.width = front->w;
|
|
t.height = front->h;
|
|
t.stride = front->stride;
|
|
t.data = (GGLubyte*)surface->heapBase(1-backIdx);
|
|
t.data += front->bits_offset;
|
|
t.format = front->format;
|
|
|
|
//const Region copyback(lcblk->region + 1-backIdx);
|
|
copyBlt(cb, t, copyback);
|
|
}
|
|
}
|
|
|
|
// update dirty region
|
|
surface->setDirtyRegion(newDirtyRegion);
|
|
}
|
|
return (backIdx < 0) ? status_t(backIdx) : status_t(NO_ERROR);
|
|
}
|
|
|
|
void SurfaceComposerClient::_signal_server()
|
|
{
|
|
mSignalServer->signal();
|
|
}
|
|
|
|
void SurfaceComposerClient::_send_dirty_region(
|
|
layer_cblk_t* lcblk, const Region& dirty)
|
|
{
|
|
const int32_t index = (lcblk->flags & eBufferIndex) >> eBufferIndexShift;
|
|
flat_region_t* flat_region = lcblk->region + index;
|
|
status_t err = dirty.write(flat_region, sizeof(flat_region_t));
|
|
if (err < NO_ERROR) {
|
|
// region doesn't fit, use the bounds
|
|
const Region reg(dirty.bounds());
|
|
reg.write(flat_region, sizeof(flat_region_t));
|
|
}
|
|
}
|
|
|
|
status_t SurfaceComposerClient::unlockAndPostSurface(Surface* surface)
|
|
{
|
|
Mutex::Autolock _l(surface->getLock());
|
|
|
|
SurfaceID index = surface->ID();
|
|
per_client_cblk_t* const cblk = mControl;
|
|
status_t err = validateSurface(cblk, surface);
|
|
if (err != NO_ERROR)
|
|
return err;
|
|
|
|
Region dirty(surface->dirtyRegion());
|
|
const Rect& swapRect(surface->swapRectangle());
|
|
if (swapRect.isValid()) {
|
|
dirty.set(swapRect);
|
|
}
|
|
|
|
// transmit the dirty region
|
|
layer_cblk_t* const lcblk = &(cblk->layers[index]);
|
|
_send_dirty_region(lcblk, dirty);
|
|
uint32_t newstate = cblk->unlock_layer_and_post(size_t(index));
|
|
if (!(newstate & eNextFlipPending))
|
|
_signal_server();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::unlockSurface(Surface* surface)
|
|
{
|
|
Mutex::Autolock _l(surface->getLock());
|
|
|
|
SurfaceID index = surface->ID();
|
|
per_client_cblk_t* const cblk = mControl;
|
|
status_t err = validateSurface(cblk, surface);
|
|
if (err != NO_ERROR)
|
|
return err;
|
|
|
|
layer_cblk_t* const lcblk = &(cblk->layers[index]);
|
|
cblk->unlock_layer(size_t(index));
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void SurfaceComposerClient::openGlobalTransaction()
|
|
{
|
|
Mutex::Autolock _l(gLock);
|
|
|
|
if (gOpenTransactions.size()) {
|
|
LOGE("openGlobalTransaction() called more than once. skipping.");
|
|
return;
|
|
}
|
|
|
|
const size_t N = gActiveConnections.size();
|
|
VERBOSE("openGlobalTransaction (%ld clients)", N);
|
|
for (size_t i=0; i<N; i++) {
|
|
sp<SurfaceComposerClient> client(gActiveConnections.valueAt(i));
|
|
if (gOpenTransactions.indexOf(client) < 0) {
|
|
if (client->openTransaction() == NO_ERROR) {
|
|
if (gOpenTransactions.add(client) < 0) {
|
|
// Ooops!
|
|
LOGE( "Unable to add a SurfaceComposerClient "
|
|
"to the global transaction set (out of memory?)");
|
|
client->closeTransaction();
|
|
// let it go, it'll fail later when the user
|
|
// tries to do something with the transaction
|
|
}
|
|
} else {
|
|
LOGE("openTransaction on client %p failed", client.get());
|
|
// let it go, it'll fail later when the user
|
|
// tries to do something with the transaction
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceComposerClient::closeGlobalTransaction()
|
|
{
|
|
gLock.lock();
|
|
SortedVector< sp<SurfaceComposerClient> > clients(gOpenTransactions);
|
|
gOpenTransactions.clear();
|
|
gLock.unlock();
|
|
|
|
const size_t N = clients.size();
|
|
VERBOSE("closeGlobalTransaction (%ld clients)", N);
|
|
if (N == 1) {
|
|
clients[0]->closeTransaction();
|
|
} else {
|
|
const sp<ISurfaceComposer>& sm(_get_surface_manager());
|
|
sm->openGlobalTransaction();
|
|
for (size_t i=0; i<N; i++) {
|
|
clients[i]->closeTransaction();
|
|
}
|
|
sm->closeGlobalTransaction();
|
|
}
|
|
}
|
|
|
|
status_t SurfaceComposerClient::freezeDisplay(DisplayID dpy, uint32_t flags)
|
|
{
|
|
const sp<ISurfaceComposer>& sm(_get_surface_manager());
|
|
return sm->freezeDisplay(dpy, flags);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::unfreezeDisplay(DisplayID dpy, uint32_t flags)
|
|
{
|
|
const sp<ISurfaceComposer>& sm(_get_surface_manager());
|
|
return sm->unfreezeDisplay(dpy, flags);
|
|
}
|
|
|
|
int SurfaceComposerClient::setOrientation(DisplayID dpy,
|
|
int orientation, uint32_t flags)
|
|
{
|
|
const sp<ISurfaceComposer>& sm(_get_surface_manager());
|
|
return sm->setOrientation(dpy, orientation, flags);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::openTransaction()
|
|
{
|
|
if (mStatus != NO_ERROR)
|
|
return mStatus;
|
|
Mutex::Autolock _l(mLock);
|
|
VERBOSE( "openTransaction (client %p, mTransactionOpen=%d)",
|
|
this, mTransactionOpen);
|
|
mTransactionOpen++;
|
|
if (mPrebuiltLayerState == 0) {
|
|
mPrebuiltLayerState = new layer_state_t;
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
|
|
status_t SurfaceComposerClient::closeTransaction()
|
|
{
|
|
if (mStatus != NO_ERROR)
|
|
return mStatus;
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
VERBOSE( "closeTransaction (client %p, mTransactionOpen=%d)",
|
|
this, mTransactionOpen);
|
|
|
|
if (mTransactionOpen <= 0) {
|
|
LOGE( "closeTransaction (client %p, mTransactionOpen=%d) "
|
|
"called more times than openTransaction()",
|
|
this, mTransactionOpen);
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
if (mTransactionOpen >= 2) {
|
|
mTransactionOpen--;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
mTransactionOpen = 0;
|
|
const ssize_t count = mStates.size();
|
|
if (count) {
|
|
mClient->setState(count, mStates.array());
|
|
mStates.clear();
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
layer_state_t* SurfaceComposerClient::_get_state_l(const sp<Surface>& surface)
|
|
{
|
|
SurfaceID index = surface->ID();
|
|
per_client_cblk_t* const cblk = mControl;
|
|
status_t err = validateSurface(cblk, surface.get());
|
|
if (err != NO_ERROR)
|
|
return 0;
|
|
|
|
// API usage error, do nothing.
|
|
if (mTransactionOpen<=0) {
|
|
LOGE("Not in transaction (client=%p, SurfaceID=%d, mTransactionOpen=%d",
|
|
this, int(index), mTransactionOpen);
|
|
return 0;
|
|
}
|
|
|
|
// use mPrebuiltLayerState just to find out if we already have it
|
|
layer_state_t& dummy = *mPrebuiltLayerState;
|
|
dummy.surface = index;
|
|
ssize_t i = mStates.indexOf(dummy);
|
|
if (i < 0) {
|
|
// we don't have it, add an initialized layer_state to our list
|
|
i = mStates.add(dummy);
|
|
}
|
|
return mStates.editArray() + i;
|
|
}
|
|
|
|
layer_state_t* SurfaceComposerClient::_lockLayerState(const sp<Surface>& surface)
|
|
{
|
|
layer_state_t* s;
|
|
mLock.lock();
|
|
s = _get_state_l(surface);
|
|
if (!s) mLock.unlock();
|
|
return s;
|
|
}
|
|
|
|
void SurfaceComposerClient::_unlockLayerState()
|
|
{
|
|
mLock.unlock();
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setPosition(Surface* surface, int32_t x, int32_t y)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::ePositionChanged;
|
|
s->x = x;
|
|
s->y = y;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setSize(Surface* surface, uint32_t w, uint32_t h)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eSizeChanged;
|
|
s->w = w;
|
|
s->h = h;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setLayer(Surface* surface, int32_t z)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eLayerChanged;
|
|
s->z = z;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::hide(Surface* surface)
|
|
{
|
|
return setFlags(surface, ISurfaceComposer::eLayerHidden,
|
|
ISurfaceComposer::eLayerHidden);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::show(Surface* surface, int32_t)
|
|
{
|
|
return setFlags(surface, 0, ISurfaceComposer::eLayerHidden);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::freeze(Surface* surface)
|
|
{
|
|
return setFlags(surface, ISurfaceComposer::eLayerFrozen,
|
|
ISurfaceComposer::eLayerFrozen);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::unfreeze(Surface* surface)
|
|
{
|
|
return setFlags(surface, 0, ISurfaceComposer::eLayerFrozen);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setFlags(Surface* surface,
|
|
uint32_t flags, uint32_t mask)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eVisibilityChanged;
|
|
s->flags &= ~mask;
|
|
s->flags |= (flags & mask);
|
|
s->mask |= mask;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
|
|
status_t SurfaceComposerClient::setTransparentRegionHint(
|
|
Surface* surface, const Region& transparentRegion)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eTransparentRegionChanged;
|
|
s->transparentRegion = transparentRegion;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setAlpha(Surface* surface, float alpha)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eAlphaChanged;
|
|
s->alpha = alpha;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setMatrix(
|
|
Surface* surface,
|
|
float dsdx, float dtdx,
|
|
float dsdy, float dtdy )
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eMatrixChanged;
|
|
layer_state_t::matrix22_t matrix;
|
|
matrix.dsdx = dsdx;
|
|
matrix.dtdx = dtdx;
|
|
matrix.dsdy = dsdy;
|
|
matrix.dtdy = dtdy;
|
|
s->matrix = matrix;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setFreezeTint(Surface* surface, uint32_t tint)
|
|
{
|
|
layer_state_t* s = _lockLayerState(surface);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eFreezeTintChanged;
|
|
s->tint = tint;
|
|
_unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
}; // namespace android
|
|
|