mirror of
https://github.com/mozilla/gecko-dev.git
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284 lines
8.3 KiB
C++
284 lines
8.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/DebugOnly.h"
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#include "mozilla/gfx/Point.h"
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#include "mozilla/layers/LayerTransactionChild.h"
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#include "mozilla/layers/ShadowLayers.h"
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#include "mozilla/layers/LayerManagerComposite.h"
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#include "mozilla/layers/CompositorTypes.h"
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#include "mozilla/layers/TextureHost.h"
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#include "mozilla/layers/SharedBufferManagerChild.h"
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#include "mozilla/layers/SharedBufferManagerParent.h"
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#include "mozilla/unused.h"
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#include "nsXULAppAPI.h"
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#include "ShadowLayerUtilsGralloc.h"
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#include "nsIMemoryReporter.h"
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#include "gfxPlatform.h"
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#include "gfx2DGlue.h"
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#include "GLContext.h"
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#include "GeckoProfiler.h"
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#include "cutils/properties.h"
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#include "MainThreadUtils.h"
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using namespace android;
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using namespace base;
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using namespace mozilla::layers;
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using namespace mozilla::gl;
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namespace IPC {
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void
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ParamTraits<GrallocBufferRef>::Write(Message* aMsg,
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const paramType& aParam)
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{
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aMsg->WriteInt(aParam.mOwner);
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aMsg->WriteInt64(aParam.mKey);
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}
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bool
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ParamTraits<GrallocBufferRef>::Read(const Message* aMsg, void** aIter,
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paramType* aParam)
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{
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int owner;
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int64_t index;
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if (!aMsg->ReadInt(aIter, &owner) ||
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!aMsg->ReadInt64(aIter, &index)) {
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printf_stderr("ParamTraits<GrallocBufferRef>::Read() failed to read a message\n");
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return false;
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}
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aParam->mOwner = owner;
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aParam->mKey = index;
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return true;
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}
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void
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ParamTraits<MagicGrallocBufferHandle>::Write(Message* aMsg,
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const paramType& aParam)
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{
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#if ANDROID_VERSION >= 19
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sp<GraphicBuffer> flattenable = aParam.mGraphicBuffer;
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#else
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Flattenable *flattenable = aParam.mGraphicBuffer.get();
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#endif
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size_t nbytes = flattenable->getFlattenedSize();
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size_t nfds = flattenable->getFdCount();
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char data[nbytes];
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int fds[nfds];
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#if ANDROID_VERSION >= 19
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// Make a copy of "data" and "fds" for flatten() to avoid casting problem
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void *pdata = (void *)data;
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int *pfds = fds;
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flattenable->flatten(pdata, nbytes, pfds, nfds);
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// In Kitkat, flatten() will change the value of nbytes and nfds, which dues
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// to multiple parcelable object consumption. The actual size and fd count
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// which returned by getFlattenedSize() and getFdCount() are not changed.
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// So we change nbytes and nfds back by call corresponding calls.
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nbytes = flattenable->getFlattenedSize();
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nfds = flattenable->getFdCount();
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#else
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flattenable->flatten(data, nbytes, fds, nfds);
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#endif
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aMsg->WriteInt(aParam.mRef.mOwner);
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aMsg->WriteInt64(aParam.mRef.mKey);
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aMsg->WriteSize(nbytes);
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aMsg->WriteSize(nfds);
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aMsg->WriteBytes(data, nbytes);
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for (size_t n = 0; n < nfds; ++n) {
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// These buffers can't die in transit because they're created
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// synchonously and the parent-side buffer can only be dropped if
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// there's a crash.
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aMsg->WriteFileDescriptor(FileDescriptor(fds[n], false));
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}
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}
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bool
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ParamTraits<MagicGrallocBufferHandle>::Read(const Message* aMsg,
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void** aIter, paramType* aResult)
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{
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size_t nbytes;
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size_t nfds;
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const char* data;
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int owner;
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int64_t index;
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if (!aMsg->ReadInt(aIter, &owner) ||
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!aMsg->ReadInt64(aIter, &index) ||
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!aMsg->ReadSize(aIter, &nbytes) ||
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!aMsg->ReadSize(aIter, &nfds) ||
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!aMsg->ReadBytes(aIter, &data, nbytes)) {
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printf_stderr("ParamTraits<MagicGrallocBufferHandle>::Read() failed to read a message\n");
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return false;
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}
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int fds[nfds];
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bool sameProcess = (XRE_GetProcessType() == GeckoProcessType_Default);
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for (size_t n = 0; n < nfds; ++n) {
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FileDescriptor fd;
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if (!aMsg->ReadFileDescriptor(aIter, &fd)) {
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printf_stderr("ParamTraits<MagicGrallocBufferHandle>::Read() failed to read file descriptors\n");
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return false;
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}
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// If the GraphicBuffer was shared cross-process, SCM_RIGHTS does
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// the right thing and dup's the fd. If it's shared cross-thread,
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// SCM_RIGHTS doesn't dup the fd.
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// But in shared cross-thread, dup fd is not necessary because we get
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// a pointer to the GraphicBuffer directly from SharedBufferManagerParent
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// and don't create a new GraphicBuffer around the fd.
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fds[n] = fd.fd;
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}
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aResult->mRef.mOwner = owner;
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aResult->mRef.mKey = index;
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if (sameProcess) {
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aResult->mGraphicBuffer = SharedBufferManagerParent::GetGraphicBuffer(aResult->mRef);
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} else {
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if (SharedBufferManagerChild::GetSingleton()->IsValidKey(index)) {
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aResult->mGraphicBuffer = SharedBufferManagerChild::GetSingleton()->GetGraphicBuffer(index);
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}
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MOZ_ASSERT(!aResult->mGraphicBuffer.get());
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// Deserialize GraphicBuffer
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#if ANDROID_VERSION >= 19
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sp<GraphicBuffer> buffer(new GraphicBuffer());
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const void* datap = (const void*)data;
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const int* fdsp = &fds[0];
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if (NO_ERROR != buffer->unflatten(datap, nbytes, fdsp, nfds)) {
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buffer = nullptr;
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}
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#else
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sp<GraphicBuffer> buffer(new GraphicBuffer());
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Flattenable *flattenable = buffer.get();
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if (NO_ERROR != flattenable->unflatten(data, nbytes, fds, nfds)) {
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buffer = nullptr;
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}
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#endif
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if(buffer.get() && !aResult->mGraphicBuffer.get()) {
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aResult->mGraphicBuffer = buffer;
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}
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}
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if (!aResult->mGraphicBuffer.get()) {
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printf_stderr("ParamTraits<MagicGrallocBufferHandle>::Read() failed to get gralloc buffer\n");
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return false;
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}
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return true;
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}
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} // namespace IPC
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namespace mozilla {
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namespace layers {
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MagicGrallocBufferHandle::MagicGrallocBufferHandle(const sp<GraphicBuffer>& aGraphicBuffer, GrallocBufferRef ref)
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: mGraphicBuffer(aGraphicBuffer)
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, mRef(ref)
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{
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}
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//-----------------------------------------------------------------------------
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// Parent process
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static gfxImageFormat
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ImageFormatForPixelFormat(android::PixelFormat aFormat)
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{
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switch (aFormat) {
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case PIXEL_FORMAT_RGBA_8888:
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return gfxImageFormat::ARGB32;
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case PIXEL_FORMAT_RGBX_8888:
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return gfxImageFormat::RGB24;
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case PIXEL_FORMAT_RGB_565:
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return gfxImageFormat::RGB16_565;
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default:
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MOZ_CRASH("Unknown gralloc pixel format");
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}
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return gfxImageFormat::ARGB32;
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}
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static android::PixelFormat
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PixelFormatForImageFormat(gfxImageFormat aFormat)
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{
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switch (aFormat) {
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case gfxImageFormat::ARGB32:
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return android::PIXEL_FORMAT_RGBA_8888;
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case gfxImageFormat::RGB24:
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return android::PIXEL_FORMAT_RGBX_8888;
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case gfxImageFormat::RGB16_565:
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return android::PIXEL_FORMAT_RGB_565;
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case gfxImageFormat::A8:
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NS_WARNING("gralloc does not support gfxImageFormat::A8");
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return android::PIXEL_FORMAT_UNKNOWN;
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default:
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MOZ_CRASH("Unknown gralloc pixel format");
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}
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return android::PIXEL_FORMAT_RGBA_8888;
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}
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/*static*/ bool
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LayerManagerComposite::SupportsDirectTexturing()
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{
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return true;
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}
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/*static*/ void
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LayerManagerComposite::PlatformSyncBeforeReplyUpdate()
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{
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// Nothing to be done for gralloc.
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}
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//-----------------------------------------------------------------------------
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// Both processes
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/*static*/ sp<GraphicBuffer>
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GetGraphicBufferFrom(MaybeMagicGrallocBufferHandle aHandle)
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{
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if (aHandle.type() != MaybeMagicGrallocBufferHandle::TMagicGrallocBufferHandle) {
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if (aHandle.type() == MaybeMagicGrallocBufferHandle::TGrallocBufferRef) {
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if (XRE_GetProcessType() == GeckoProcessType_Default) {
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return SharedBufferManagerParent::GetGraphicBuffer(aHandle.get_GrallocBufferRef());
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}
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return SharedBufferManagerChild::GetSingleton()->GetGraphicBuffer(aHandle.get_GrallocBufferRef().mKey);
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}
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} else {
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MagicGrallocBufferHandle realHandle = aHandle.get_MagicGrallocBufferHandle();
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return realHandle.mGraphicBuffer;
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}
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return nullptr;
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}
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android::sp<android::GraphicBuffer>
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GetGraphicBufferFromDesc(SurfaceDescriptor aDesc)
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{
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MaybeMagicGrallocBufferHandle handle;
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if (aDesc.type() == SurfaceDescriptor::TNewSurfaceDescriptorGralloc) {
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handle = aDesc.get_NewSurfaceDescriptorGralloc().buffer();
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}
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return GetGraphicBufferFrom(handle);
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}
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/*static*/ void
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ShadowLayerForwarder::PlatformSyncBeforeUpdate()
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{
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// Nothing to be done for gralloc.
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}
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} // namespace layers
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} // namespace mozilla
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