mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
429 lines
13 KiB
C++
429 lines
13 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/layers/PGrallocBufferChild.h"
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#include "mozilla/layers/PGrallocBufferParent.h"
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#include "mozilla/layers/PLayersChild.h"
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#include "mozilla/layers/ShadowLayers.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 "gfxImageSurface.h"
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#include "gfxPlatform.h"
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#include "sampler.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<MagicGrallocBufferHandle>::Write(Message* aMsg,
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const paramType& aParam)
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{
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Flattenable *flattenable = aParam.mGraphicBuffer.get();
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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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flattenable->flatten(data, nbytes, fds, nfds);
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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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if (!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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return false;
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}
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int fds[nfds];
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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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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. That's surprising, but we just
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// deal with it here. NB: only the "default" (master) process can
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// alloc gralloc buffers.
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bool sameProcess = (XRE_GetProcessType() == GeckoProcessType_Default);
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int dupFd = sameProcess ? dup(fd.fd) : fd.fd;
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fds[n] = dupFd;
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}
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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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aResult->mGraphicBuffer = buffer;
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return true;
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}
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return false;
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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)
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: mGraphicBuffer(aGraphicBuffer)
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{
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}
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//-----------------------------------------------------------------------------
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// Parent process
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static gfxASurface::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 gfxASurface::ImageFormatARGB32;
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case PIXEL_FORMAT_RGBX_8888:
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return gfxASurface::ImageFormatRGB24;
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case PIXEL_FORMAT_RGB_565:
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return gfxASurface::ImageFormatRGB16_565;
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case PIXEL_FORMAT_A_8:
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return gfxASurface::ImageFormatA8;
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default:
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MOZ_NOT_REACHED("Unknown gralloc pixel format");
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}
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return gfxASurface::ImageFormatARGB32;
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}
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static android::PixelFormat
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PixelFormatForImageFormat(gfxASurface::gfxImageFormat aFormat)
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{
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switch (aFormat) {
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case gfxASurface::ImageFormatARGB32:
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return android::PIXEL_FORMAT_RGBA_8888;
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case gfxASurface::ImageFormatRGB24:
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return android::PIXEL_FORMAT_RGBX_8888;
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case gfxASurface::ImageFormatRGB16_565:
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return android::PIXEL_FORMAT_RGB_565;
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case gfxASurface::ImageFormatA8:
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return android::PIXEL_FORMAT_A_8;
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default:
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MOZ_NOT_REACHED("Unknown gralloc pixel format");
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}
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return gfxASurface::ImageFormatARGB32;
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}
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static android::PixelFormat
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PixelFormatForContentType(gfxASurface::gfxContentType aContentType)
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{
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return PixelFormatForImageFormat(
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gfxPlatform::GetPlatform()->OptimalFormatForContent(aContentType));
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}
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static gfxASurface::gfxContentType
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ContentTypeFromPixelFormat(android::PixelFormat aFormat)
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{
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return gfxASurface::ContentFromFormat(ImageFormatForPixelFormat(aFormat));
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}
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static size_t sCurrentAlloc;
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static int64_t GetGrallocSize() { return sCurrentAlloc; }
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NS_MEMORY_REPORTER_IMPLEMENT(GrallocBufferActor,
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"gralloc",
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KIND_OTHER,
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UNITS_BYTES,
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GetGrallocSize,
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"Special RAM that can be shared between processes and directly "
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"accessed by both the CPU and GPU. Gralloc memory is usually a "
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"relatively precious resource, with much less available than generic "
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"RAM. When it's exhausted, graphics performance can suffer. "
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"This value can be incorrect because of race conditions.");
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GrallocBufferActor::GrallocBufferActor()
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: mAllocBytes(0)
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{
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static bool registered;
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if (!registered) {
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// We want to be sure that the first call here will always run on
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// the main thread.
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NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");
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NS_RegisterMemoryReporter(new NS_MEMORY_REPORTER_NAME(GrallocBufferActor));
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registered = true;
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}
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}
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GrallocBufferActor::~GrallocBufferActor()
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{
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if (mAllocBytes > 0) {
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sCurrentAlloc -= mAllocBytes;
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}
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}
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/*static*/ PGrallocBufferParent*
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GrallocBufferActor::Create(const gfxIntSize& aSize,
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const gfxContentType& aContent,
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MaybeMagicGrallocBufferHandle* aOutHandle)
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{
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SAMPLE_LABEL("GrallocBufferActor", "Create");
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GrallocBufferActor* actor = new GrallocBufferActor();
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*aOutHandle = null_t();
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android::PixelFormat format = PixelFormatForContentType(aContent);
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sp<GraphicBuffer> buffer(
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new GraphicBuffer(aSize.width, aSize.height, format,
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GraphicBuffer::USAGE_SW_READ_OFTEN |
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GraphicBuffer::USAGE_SW_WRITE_OFTEN |
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GraphicBuffer::USAGE_HW_TEXTURE));
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if (buffer->initCheck() != OK)
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return actor;
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size_t bpp = gfxASurface::BytePerPixelFromFormat(
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gfxPlatform::GetPlatform()->OptimalFormatForContent(aContent));
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actor->mAllocBytes = aSize.width * aSize.height * bpp;
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sCurrentAlloc += actor->mAllocBytes;
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actor->mGraphicBuffer = buffer;
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*aOutHandle = MagicGrallocBufferHandle(buffer);
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return actor;
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}
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/*static*/ already_AddRefed<TextureImage>
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ShadowLayerManager::OpenDescriptorForDirectTexturing(GLContext* aGL,
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const SurfaceDescriptor& aDescriptor,
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GLenum aWrapMode)
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{
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SAMPLE_LABEL("ShadowLayerManager", "OpenDescriptorForDirectTexturing");
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aDescriptor.type()) {
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return nullptr;
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}
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sp<GraphicBuffer> buffer = GrallocBufferActor::GetFrom(aDescriptor);
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return aGL->CreateDirectTextureImage(buffer.get(), aWrapMode);
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}
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/*static*/ void
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ShadowLayerManager::PlatformSyncBeforeReplyUpdate()
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{
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// Nothing to be done for gralloc.
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}
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/*static*/ PGrallocBufferParent*
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GrallocBufferActor::Create(const gfxIntSize& aSize,
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const uint32_t& aFormat,
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const uint32_t& aUsage,
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MaybeMagicGrallocBufferHandle* aOutHandle)
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{
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GrallocBufferActor* actor = new GrallocBufferActor();
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*aOutHandle = null_t();
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sp<GraphicBuffer> buffer(
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new GraphicBuffer(aSize.width, aSize.height, aFormat, aUsage));
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if (buffer->initCheck() != OK)
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return actor;
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actor->mGraphicBuffer = buffer;
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*aOutHandle = MagicGrallocBufferHandle(buffer);
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return actor;
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}
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bool
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ShadowLayerManager::PlatformDestroySharedSurface(SurfaceDescriptor* aSurface)
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{
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aSurface->type()) {
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return false;
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}
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PGrallocBufferParent* gbp =
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aSurface->get_SurfaceDescriptorGralloc().bufferParent();
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unused << PGrallocBufferParent::Send__delete__(gbp);
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*aSurface = SurfaceDescriptor();
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return true;
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}
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//-----------------------------------------------------------------------------
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// Child process
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/*static*/ PGrallocBufferChild*
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GrallocBufferActor::Create()
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{
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return new GrallocBufferActor();
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}
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void
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GrallocBufferActor::InitFromHandle(const MagicGrallocBufferHandle& aHandle)
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{
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MOZ_ASSERT(!mGraphicBuffer.get());
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MOZ_ASSERT(aHandle.mGraphicBuffer.get());
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mGraphicBuffer = aHandle.mGraphicBuffer;
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}
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bool
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ShadowLayerForwarder::PlatformAllocBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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uint32_t aCaps,
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SurfaceDescriptor* aBuffer)
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{
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SAMPLE_LABEL("ShadowLayerForwarder", "PlatformAllocBuffer");
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// Gralloc buffers are efficiently mappable as gfxImageSurface, so
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// no need to check |aCaps & MAP_AS_IMAGE_SURFACE|.
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MaybeMagicGrallocBufferHandle handle;
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PGrallocBufferChild* gc =
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mShadowManager->SendPGrallocBufferConstructor(aSize, aContent, &handle);
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if (handle.Tnull_t == handle.type()) {
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PGrallocBufferChild::Send__delete__(gc);
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return false;
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}
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GrallocBufferActor* gba = static_cast<GrallocBufferActor*>(gc);
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gba->InitFromHandle(handle.get_MagicGrallocBufferHandle());
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*aBuffer = SurfaceDescriptorGralloc(nullptr, gc, /* external */ false);
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return true;
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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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GrallocBufferActor::GetFrom(const SurfaceDescriptorGralloc& aDescriptor)
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{
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GrallocBufferActor* gba = nullptr;
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if (PGrallocBufferChild* child = aDescriptor.bufferChild()) {
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gba = static_cast<GrallocBufferActor*>(child);
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} else if (PGrallocBufferParent* parent = aDescriptor.bufferParent()) {
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gba = static_cast<GrallocBufferActor*>(parent);
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}
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return gba->mGraphicBuffer;
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}
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/*static*/ already_AddRefed<gfxASurface>
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ShadowLayerForwarder::PlatformOpenDescriptor(OpenMode aMode,
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const SurfaceDescriptor& aSurface)
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{
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SAMPLE_LABEL("ShadowLayerForwarder", "PlatformOpenDescriptor");
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aSurface.type()) {
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return nullptr;
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}
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sp<GraphicBuffer> buffer =
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GrallocBufferActor::GetFrom(aSurface.get_SurfaceDescriptorGralloc());
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uint32_t usage = GRALLOC_USAGE_SW_READ_OFTEN;
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if (OPEN_READ_WRITE == aMode) {
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usage |= GRALLOC_USAGE_SW_WRITE_OFTEN;
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}
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void *vaddr;
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DebugOnly<status_t> status = buffer->lock(usage, &vaddr);
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// If we fail to lock, we'll just end up aborting anyway.
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MOZ_ASSERT(status == OK);
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gfxIntSize size = gfxIntSize(buffer->getWidth(), buffer->getHeight());
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gfxImageFormat format = ImageFormatForPixelFormat(buffer->getPixelFormat());
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long pixelStride = buffer->getStride();
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long byteStride = pixelStride * gfxASurface::BytePerPixelFromFormat(format);
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nsRefPtr<gfxASurface> surf =
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new gfxImageSurface((unsigned char*)vaddr, size, byteStride, format);
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return surf->CairoStatus() ? nullptr : surf.forget();
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}
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/*static*/ bool
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ShadowLayerForwarder::PlatformGetDescriptorSurfaceContentType(
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const SurfaceDescriptor& aDescriptor, OpenMode aMode,
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gfxContentType* aContent,
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gfxASurface** aSurface)
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{
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aDescriptor.type()) {
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return false;
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}
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sp<GraphicBuffer> buffer =
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GrallocBufferActor::GetFrom(aDescriptor.get_SurfaceDescriptorGralloc());
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*aContent = ContentTypeFromPixelFormat(buffer->getPixelFormat());
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return true;
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}
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/*static*/ bool
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ShadowLayerForwarder::PlatformGetDescriptorSurfaceSize(
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const SurfaceDescriptor& aDescriptor, OpenMode aMode,
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gfxIntSize* aSize,
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gfxASurface** aSurface)
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{
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aDescriptor.type()) {
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return false;
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}
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sp<GraphicBuffer> buffer =
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GrallocBufferActor::GetFrom(aDescriptor.get_SurfaceDescriptorGralloc());
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*aSize = gfxIntSize(buffer->getWidth(), buffer->getHeight());
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return true;
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}
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/*static*/ bool
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ShadowLayerForwarder::PlatformDestroySharedSurface(SurfaceDescriptor* aSurface)
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{
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aSurface->type()) {
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return false;
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}
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PGrallocBufferChild* gbp =
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aSurface->get_SurfaceDescriptorGralloc().bufferChild();
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PGrallocBufferChild::Send__delete__(gbp);
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*aSurface = SurfaceDescriptor();
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return true;
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}
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/*static*/ bool
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ShadowLayerForwarder::PlatformCloseDescriptor(const SurfaceDescriptor& aDescriptor)
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{
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SAMPLE_LABEL("ShadowLayerForwarder", "PlatformCloseDescriptor");
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if (SurfaceDescriptor::TSurfaceDescriptorGralloc != aDescriptor.type()) {
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return false;
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}
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sp<GraphicBuffer> buffer = GrallocBufferActor::GetFrom(aDescriptor);
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// If the buffer wasn't lock()d, this probably blows up. But since
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// PlatformCloseDescriptor() is private and only used by
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// AutoOpenSurface, we want to know if the logic is wrong there.
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buffer->unlock();
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return true;
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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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