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fune/widget/gtk/DMABufSurface.cpp
stransky 835b4b8a8c Bug 1865121 [Linux] Restrict dmabuf surface plane count r=emilio 
- Don't release dmabuf with incorrect plane count
- Don't save incorrect plane count to dmabuf surface

Differential Revision: https://phabricator.services.mozilla.com/D194041
2024-01-03 17:04:16 +00:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DMABufSurface.h"
#include "DMABufLibWrapper.h"
#ifdef MOZ_WAYLAND
# include "nsWaylandDisplay.h"
#endif
#include <fcntl.h>
#include <getopt.h>
#include <signal.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <dlfcn.h>
#include <sys/mman.h>
#ifdef HAVE_EVENTFD
# include <sys/eventfd.h>
#endif
#include <poll.h>
#ifdef HAVE_SYSIOCCOM_H
# include <sys/ioccom.h>
#endif
#include <sys/ioctl.h>
#include "mozilla/widget/gbm.h"
#include "mozilla/widget/va_drmcommon.h"
#include "YCbCrUtils.h"
#include "mozilla/gfx/2D.h"
#include "GLContextTypes.h" // for GLContext, etc
#include "GLContextEGL.h"
#include "GLContextProvider.h"
#include "ScopedGLHelpers.h"
#include "GLBlitHelper.h"
#include "GLReadTexImageHelper.h"
#include "nsGtkUtils.h"
#include "mozilla/layers/LayersSurfaces.h"
#include "mozilla/ScopeExit.h"
/*
TODO:
DRM device selection:
https://lists.freedesktop.org/archives/wayland-devel/2018-November/039660.html
*/
/* C++ / C typecast macros for special EGL handle values */
#if defined(__cplusplus)
# define EGL_CAST(type, value) (static_cast<type>(value))
#else
# define EGL_CAST(type, value) ((type)(value))
#endif
using namespace mozilla;
using namespace mozilla::widget;
using namespace mozilla::gl;
using namespace mozilla::layers;
using namespace mozilla::gfx;
#ifdef MOZ_LOGGING
# include "mozilla/Logging.h"
# include "nsTArray.h"
# include "Units.h"
static LazyLogModule gDmabufRefLog("DmabufRef");
# define LOGDMABUFREF(args) \
MOZ_LOG(gDmabufRefLog, mozilla::LogLevel::Debug, args)
#else
# define LOGDMABUFREF(args)
#endif /* MOZ_LOGGING */
#define BUFFER_FLAGS 0
static RefPtr<GLContext> sSnapshotContext;
static StaticMutex sSnapshotContextMutex MOZ_UNANNOTATED;
static Atomic<int> gNewSurfaceUID(1);
RefPtr<GLContext> ClaimSnapshotGLContext() {
if (!sSnapshotContext) {
nsCString discardFailureId;
sSnapshotContext = GLContextProvider::CreateHeadless({}, &discardFailureId);
if (!sSnapshotContext) {
LOGDMABUF(
("ClaimSnapshotGLContext: Failed to create snapshot GLContext."));
return nullptr;
}
sSnapshotContext->mOwningThreadId = Nothing(); // No singular owner.
}
if (!sSnapshotContext->MakeCurrent()) {
LOGDMABUF(("ClaimSnapshotGLContext: Failed to make GLContext current."));
return nullptr;
}
return sSnapshotContext;
}
void ReturnSnapshotGLContext(RefPtr<GLContext> aGLContext) {
// direct eglMakeCurrent() call breaks current context caching so make sure
// it's not used.
MOZ_ASSERT(!aGLContext->mUseTLSIsCurrent);
if (!aGLContext->IsCurrent()) {
LOGDMABUF(("ReturnSnapshotGLContext() failed, is not current!"));
return;
}
const auto& gle = gl::GLContextEGL::Cast(aGLContext);
const auto& egl = gle->mEgl;
egl->fMakeCurrent(EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
}
bool DMABufSurface::IsGlobalRefSet() const {
if (!mGlobalRefCountFd) {
return false;
}
struct pollfd pfd;
pfd.fd = mGlobalRefCountFd;
pfd.events = POLLIN;
return poll(&pfd, 1, 0) == 1;
}
void DMABufSurface::GlobalRefRelease() {
#ifdef HAVE_EVENTFD
if (!mGlobalRefCountFd) {
return;
}
LOGDMABUFREF(("DMABufSurface::GlobalRefRelease UID %d", mUID));
uint64_t counter;
if (read(mGlobalRefCountFd, &counter, sizeof(counter)) != sizeof(counter)) {
if (errno == EAGAIN) {
LOGDMABUFREF(
(" GlobalRefRelease failed: already zero reference! UID %d", mUID));
}
// EAGAIN means the refcount is already zero. It happens when we release
// last reference to the surface.
if (errno != EAGAIN) {
NS_WARNING(nsPrintfCString("Failed to unref dmabuf global ref count: %s",
strerror(errno))
.get());
}
}
#endif
}
void DMABufSurface::GlobalRefAdd() {
#ifdef HAVE_EVENTFD
LOGDMABUFREF(("DMABufSurface::GlobalRefAdd UID %d", mUID));
MOZ_DIAGNOSTIC_ASSERT(mGlobalRefCountFd);
uint64_t counter = 1;
if (write(mGlobalRefCountFd, &counter, sizeof(counter)) != sizeof(counter)) {
NS_WARNING(nsPrintfCString("Failed to ref dmabuf global ref count: %s",
strerror(errno))
.get());
}
#endif
}
void DMABufSurface::GlobalRefCountCreate() {
#ifdef HAVE_EVENTFD
LOGDMABUFREF(("DMABufSurface::GlobalRefCountCreate UID %d", mUID));
MOZ_DIAGNOSTIC_ASSERT(!mGlobalRefCountFd);
// Create global ref count initialized to 0,
// i.e. is not referenced after create.
mGlobalRefCountFd = eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK | EFD_SEMAPHORE);
if (mGlobalRefCountFd < 0) {
NS_WARNING(nsPrintfCString("Failed to create dmabuf global ref count: %s",
strerror(errno))
.get());
mGlobalRefCountFd = 0;
return;
}
#endif
}
void DMABufSurface::GlobalRefCountImport(int aFd) {
#ifdef HAVE_EVENTFD
mGlobalRefCountFd = aFd;
if (mGlobalRefCountFd) {
LOGDMABUFREF(("DMABufSurface::GlobalRefCountImport UID %d", mUID));
GlobalRefAdd();
}
#endif
}
int DMABufSurface::GlobalRefCountExport() {
#ifdef MOZ_LOGGING
if (mGlobalRefCountFd) {
LOGDMABUFREF(("DMABufSurface::GlobalRefCountExport UID %d", mUID));
}
#endif
return mGlobalRefCountFd;
}
void DMABufSurface::GlobalRefCountDelete() {
if (mGlobalRefCountFd) {
LOGDMABUFREF(("DMABufSurface::GlobalRefCountDelete UID %d", mUID));
close(mGlobalRefCountFd);
mGlobalRefCountFd = 0;
}
}
void DMABufSurface::ReleaseDMABuf() {
LOGDMABUF(("DMABufSurface::ReleaseDMABuf() UID %d", mUID));
for (int i = 0; i < mBufferPlaneCount; i++) {
Unmap(i);
}
MutexAutoLock lockFD(mSurfaceLock);
CloseFileDescriptors(lockFD, /* aForceClose */ true);
for (int i = 0; i < mBufferPlaneCount; i++) {
if (mGbmBufferObject[i]) {
GbmLib::Destroy(mGbmBufferObject[i]);
mGbmBufferObject[i] = nullptr;
}
}
mBufferPlaneCount = 0;
}
DMABufSurface::DMABufSurface(SurfaceType aSurfaceType)
: mSurfaceType(aSurfaceType),
mBufferPlaneCount(0),
mDrmFormats(),
mStrides(),
mOffsets(),
mGbmBufferObject(),
mMappedRegion(),
mMappedRegionStride(),
mSyncFd(-1),
mSync(nullptr),
mGlobalRefCountFd(0),
mUID(gNewSurfaceUID++),
mSurfaceLock("DMABufSurface") {
for (auto& slot : mDmabufFds) {
slot = -1;
}
for (auto& modifier : mBufferModifiers) {
modifier = DRM_FORMAT_MOD_INVALID;
}
}
DMABufSurface::~DMABufSurface() {
FenceDelete();
GlobalRefRelease();
GlobalRefCountDelete();
}
already_AddRefed<DMABufSurface> DMABufSurface::CreateDMABufSurface(
const mozilla::layers::SurfaceDescriptor& aDesc) {
const SurfaceDescriptorDMABuf& desc = aDesc.get_SurfaceDescriptorDMABuf();
RefPtr<DMABufSurface> surf;
switch (desc.bufferType()) {
case SURFACE_RGBA:
surf = new DMABufSurfaceRGBA();
break;
case SURFACE_NV12:
case SURFACE_YUV420:
surf = new DMABufSurfaceYUV();
break;
default:
return nullptr;
}
if (!surf->Create(desc)) {
return nullptr;
}
return surf.forget();
}
void DMABufSurface::FenceDelete() {
if (mSyncFd > 0) {
close(mSyncFd);
mSyncFd = -1;
}
if (!mGL) {
return;
}
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
if (mSync) {
egl->fDestroySync(mSync);
mSync = nullptr;
}
}
void DMABufSurface::FenceSet() {
if (!mGL || !mGL->MakeCurrent()) {
MOZ_DIAGNOSTIC_ASSERT(mGL,
"DMABufSurface::FenceSet(): missing GL context!");
return;
}
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
if (egl->IsExtensionSupported(EGLExtension::KHR_fence_sync) &&
egl->IsExtensionSupported(EGLExtension::ANDROID_native_fence_sync)) {
FenceDelete();
mSync = egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, nullptr);
if (mSync) {
mSyncFd = egl->fDupNativeFenceFDANDROID(mSync);
mGL->fFlush();
return;
}
}
// ANDROID_native_fence_sync may not be supported so call glFinish()
// as a slow path.
mGL->fFinish();
}
void DMABufSurface::FenceWait() {
if (!mGL || mSyncFd < 0) {
MOZ_DIAGNOSTIC_ASSERT(mGL,
"DMABufSurface::FenceWait() missing GL context!");
return;
}
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
const EGLint attribs[] = {LOCAL_EGL_SYNC_NATIVE_FENCE_FD_ANDROID, mSyncFd,
LOCAL_EGL_NONE};
EGLSync sync = egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
if (!sync) {
MOZ_ASSERT(false, "DMABufSurface::FenceWait(): Failed to create GLFence!");
// We failed to create GLFence so clear mSyncFd to avoid another try.
close(mSyncFd);
mSyncFd = -1;
return;
}
// mSyncFd is owned by GLFence so clear local reference to avoid double close
// at DMABufSurface::FenceDelete().
mSyncFd = -1;
egl->fClientWaitSync(sync, 0, LOCAL_EGL_FOREVER);
egl->fDestroySync(sync);
}
bool DMABufSurface::OpenFileDescriptors(const MutexAutoLock& aProofOfLock) {
for (int i = 0; i < mBufferPlaneCount; i++) {
if (!OpenFileDescriptorForPlane(aProofOfLock, i)) {
return false;
}
}
return true;
}
// We can safely close DMABuf file descriptors only when we have a valid
// GbmBufferObject. When we don't have a valid GbmBufferObject and a DMABuf
// file descriptor is closed, whole surface is released.
void DMABufSurface::CloseFileDescriptors(const MutexAutoLock& aProofOfLock,
bool aForceClose) {
for (int i = 0; i < DMABUF_BUFFER_PLANES; i++) {
CloseFileDescriptorForPlane(aProofOfLock, i, aForceClose);
}
}
DMABufSurfaceRGBA::DMABufSurfaceRGBA()
: DMABufSurface(SURFACE_RGBA),
mSurfaceFlags(0),
mWidth(0),
mHeight(0),
mGmbFormat(nullptr),
mEGLImage(LOCAL_EGL_NO_IMAGE),
mTexture(0),
mGbmBufferFlags(0) {}
DMABufSurfaceRGBA::~DMABufSurfaceRGBA() {
#ifdef MOZ_WAYLAND
ReleaseWlBuffer();
#endif
ReleaseSurface();
}
bool DMABufSurfaceRGBA::OpenFileDescriptorForPlane(
const MutexAutoLock& aProofOfLock, int aPlane) {
if (mDmabufFds[aPlane] >= 0) {
return true;
}
gbm_bo* bo = mGbmBufferObject[0];
if (NS_WARN_IF(!bo)) {
LOGDMABUF(
("DMABufSurfaceRGBA::OpenFileDescriptorForPlane: Missing "
"mGbmBufferObject object!"));
return false;
}
if (mBufferPlaneCount == 1) {
MOZ_ASSERT(aPlane == 0, "DMABuf: wrong surface plane!");
mDmabufFds[0] = GbmLib::GetFd(bo);
} else {
mDmabufFds[aPlane] = GetDMABufDevice()->GetDmabufFD(
GbmLib::GetHandleForPlane(bo, aPlane).u32);
}
if (mDmabufFds[aPlane] < 0) {
CloseFileDescriptors(aProofOfLock);
return false;
}
return true;
}
void DMABufSurfaceRGBA::CloseFileDescriptorForPlane(
const MutexAutoLock& aProofOfLock, int aPlane, bool aForceClose = false) {
if ((aForceClose || mGbmBufferObject[0]) && mDmabufFds[aPlane] >= 0) {
close(mDmabufFds[aPlane]);
mDmabufFds[aPlane] = -1;
}
}
bool DMABufSurfaceRGBA::Create(int aWidth, int aHeight,
int aDMABufSurfaceFlags) {
MOZ_ASSERT(mGbmBufferObject[0] == nullptr, "Already created?");
mSurfaceFlags = aDMABufSurfaceFlags;
mWidth = aWidth;
mHeight = aHeight;
LOGDMABUF(("DMABufSurfaceRGBA::Create() UID %d size %d x %d\n", mUID, mWidth,
mHeight));
if (!GetDMABufDevice()->GetGbmDevice()) {
LOGDMABUF((" Missing GbmDevice!"));
return false;
}
mGmbFormat = GetDMABufDevice()->GetGbmFormat(mSurfaceFlags & DMABUF_ALPHA);
if (!mGmbFormat) {
// Requested DRM format is not supported.
return false;
}
mDrmFormats[0] = mGmbFormat->mFormat;
bool useModifiers = (aDMABufSurfaceFlags & DMABUF_USE_MODIFIERS) &&
!mGmbFormat->mModifiers.IsEmpty();
if (useModifiers) {
LOGDMABUF((" Creating with modifiers\n"));
mGbmBufferObject[0] = GbmLib::CreateWithModifiers(
GetDMABufDevice()->GetGbmDevice(), mWidth, mHeight, mDrmFormats[0],
mGmbFormat->mModifiers.Elements(), mGmbFormat->mModifiers.Length());
if (mGbmBufferObject[0]) {
mBufferModifiers[0] = GbmLib::GetModifier(mGbmBufferObject[0]);
}
}
if (!mGbmBufferObject[0]) {
LOGDMABUF((" Creating without modifiers\n"));
mGbmBufferFlags = GBM_BO_USE_LINEAR;
mGbmBufferObject[0] =
GbmLib::Create(GetDMABufDevice()->GetGbmDevice(), mWidth, mHeight,
mDrmFormats[0], mGbmBufferFlags);
mBufferModifiers[0] = DRM_FORMAT_MOD_INVALID;
}
if (!mGbmBufferObject[0]) {
LOGDMABUF((" Failed to create GbmBufferObject\n"));
return false;
}
if (mBufferModifiers[0] != DRM_FORMAT_MOD_INVALID) {
mBufferPlaneCount = GbmLib::GetPlaneCount(mGbmBufferObject[0]);
if (mBufferPlaneCount > DMABUF_BUFFER_PLANES) {
LOGDMABUF(
(" There's too many dmabuf planes! (%d)", mBufferPlaneCount));
mBufferPlaneCount = DMABUF_BUFFER_PLANES;
return false;
}
for (int i = 0; i < mBufferPlaneCount; i++) {
mStrides[i] = GbmLib::GetStrideForPlane(mGbmBufferObject[0], i);
mOffsets[i] = GbmLib::GetOffset(mGbmBufferObject[0], i);
}
} else {
mBufferPlaneCount = 1;
mStrides[0] = GbmLib::GetStride(mGbmBufferObject[0]);
}
LOGDMABUF((" Success\n"));
return true;
}
bool DMABufSurfaceRGBA::Create(mozilla::gl::GLContext* aGLContext,
const EGLImageKHR aEGLImage, int aWidth,
int aHeight) {
LOGDMABUF(("DMABufSurfaceRGBA::Create() from EGLImage UID = %d\n", mUID));
if (!aGLContext) {
return false;
}
const auto& gle = gl::GLContextEGL::Cast(aGLContext);
const auto& egl = gle->mEgl;
mGL = aGLContext;
mWidth = aWidth;
mHeight = aHeight;
mEGLImage = aEGLImage;
if (!egl->fExportDMABUFImageQuery(mEGLImage, mDrmFormats, &mBufferPlaneCount,
mBufferModifiers)) {
LOGDMABUF((" ExportDMABUFImageQueryMESA failed, quit\n"));
return false;
}
if (mBufferPlaneCount > DMABUF_BUFFER_PLANES) {
LOGDMABUF((" wrong plane count %d, quit\n", mBufferPlaneCount));
mBufferPlaneCount = DMABUF_BUFFER_PLANES;
return false;
}
if (!egl->fExportDMABUFImage(mEGLImage, mDmabufFds, mStrides, mOffsets)) {
LOGDMABUF((" ExportDMABUFImageMESA failed, quit\n"));
return false;
}
// A broken driver can return dmabuf without valid file descriptors
// which leads to fails later so quit now.
for (int i = 0; i < mBufferPlaneCount; i++) {
if (mDmabufFds[i] < 0) {
LOGDMABUF(
(" ExportDMABUFImageMESA failed, mDmabufFds[%d] is invalid, quit",
i));
return false;
}
}
LOGDMABUF((" imported size %d x %d format %x planes %d modifiers %" PRIx64,
mWidth, mHeight, mDrmFormats[0], mBufferPlaneCount,
mBufferModifiers[0]));
return true;
}
bool DMABufSurfaceRGBA::ImportSurfaceDescriptor(
const SurfaceDescriptor& aDesc) {
const SurfaceDescriptorDMABuf& desc = aDesc.get_SurfaceDescriptorDMABuf();
mWidth = desc.width()[0];
mHeight = desc.height()[0];
mBufferModifiers[0] = desc.modifier()[0];
mDrmFormats[0] = desc.format()[0];
mBufferPlaneCount = desc.fds().Length();
mGbmBufferFlags = desc.flags();
MOZ_RELEASE_ASSERT(mBufferPlaneCount <= DMABUF_BUFFER_PLANES);
mUID = desc.uid();
LOGDMABUF(
("DMABufSurfaceRGBA::ImportSurfaceDescriptor() UID %d size %d x %d\n",
mUID, mWidth, mHeight));
for (int i = 0; i < mBufferPlaneCount; i++) {
mDmabufFds[i] = desc.fds()[i].ClonePlatformHandle().release();
if (mDmabufFds[i] < 0) {
LOGDMABUF(
(" failed to get DMABuf file descriptor: %s", strerror(errno)));
return false;
}
mStrides[i] = desc.strides()[i];
mOffsets[i] = desc.offsets()[i];
}
if (desc.fence().Length() > 0) {
mSyncFd = desc.fence()[0].ClonePlatformHandle().release();
if (mSyncFd < 0) {
LOGDMABUF(
(" failed to get GL fence file descriptor: %s", strerror(errno)));
return false;
}
}
if (desc.refCount().Length() > 0) {
GlobalRefCountImport(desc.refCount()[0].ClonePlatformHandle().release());
}
LOGDMABUF((" imported size %d x %d format %x planes %d", mWidth, mHeight,
mDrmFormats[0], mBufferPlaneCount));
return true;
}
bool DMABufSurfaceRGBA::Create(const SurfaceDescriptor& aDesc) {
return ImportSurfaceDescriptor(aDesc);
}
bool DMABufSurfaceRGBA::Serialize(
mozilla::layers::SurfaceDescriptor& aOutDescriptor) {
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> width;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> height;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> format;
AutoTArray<ipc::FileDescriptor, DMABUF_BUFFER_PLANES> fds;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> strides;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> offsets;
AutoTArray<uintptr_t, DMABUF_BUFFER_PLANES> images;
AutoTArray<uint64_t, DMABUF_BUFFER_PLANES> modifiers;
AutoTArray<ipc::FileDescriptor, 1> fenceFDs;
AutoTArray<ipc::FileDescriptor, 1> refCountFDs;
LOGDMABUF(("DMABufSurfaceRGBA::Serialize() UID %d\n", mUID));
MutexAutoLock lockFD(mSurfaceLock);
if (!OpenFileDescriptors(lockFD)) {
return false;
}
width.AppendElement(mWidth);
height.AppendElement(mHeight);
format.AppendElement(mDrmFormats[0]);
modifiers.AppendElement(mBufferModifiers[0]);
for (int i = 0; i < mBufferPlaneCount; i++) {
fds.AppendElement(ipc::FileDescriptor(mDmabufFds[i]));
strides.AppendElement(mStrides[i]);
offsets.AppendElement(mOffsets[i]);
}
CloseFileDescriptors(lockFD);
if (mSync) {
fenceFDs.AppendElement(ipc::FileDescriptor(mSyncFd));
}
if (mGlobalRefCountFd) {
refCountFDs.AppendElement(ipc::FileDescriptor(GlobalRefCountExport()));
}
aOutDescriptor = SurfaceDescriptorDMABuf(
mSurfaceType, modifiers, mGbmBufferFlags, fds, width, height, width,
height, format, strides, offsets, GetYUVColorSpace(), mColorRange,
fenceFDs, mUID, refCountFDs);
return true;
}
bool DMABufSurfaceRGBA::CreateTexture(GLContext* aGLContext, int aPlane) {
LOGDMABUF(("DMABufSurfaceRGBA::CreateTexture() UID %d\n", mUID));
MOZ_ASSERT(!mEGLImage && !mTexture, "EGLImage is already created!");
nsTArray<EGLint> attribs;
attribs.AppendElement(LOCAL_EGL_WIDTH);
attribs.AppendElement(mWidth);
attribs.AppendElement(LOCAL_EGL_HEIGHT);
attribs.AppendElement(mHeight);
attribs.AppendElement(LOCAL_EGL_LINUX_DRM_FOURCC_EXT);
attribs.AppendElement(mDrmFormats[0]);
#define ADD_PLANE_ATTRIBS(plane_idx) \
{ \
attribs.AppendElement(LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_FD_EXT); \
attribs.AppendElement(mDmabufFds[plane_idx]); \
attribs.AppendElement(LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_OFFSET_EXT); \
attribs.AppendElement((int)mOffsets[plane_idx]); \
attribs.AppendElement(LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_PITCH_EXT); \
attribs.AppendElement((int)mStrides[plane_idx]); \
if (mBufferModifiers[0] != DRM_FORMAT_MOD_INVALID) { \
attribs.AppendElement( \
LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_MODIFIER_LO_EXT); \
attribs.AppendElement(mBufferModifiers[0] & 0xFFFFFFFF); \
attribs.AppendElement( \
LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_MODIFIER_HI_EXT); \
attribs.AppendElement(mBufferModifiers[0] >> 32); \
} \
}
MutexAutoLock lockFD(mSurfaceLock);
if (!OpenFileDescriptors(lockFD)) {
return false;
}
ADD_PLANE_ATTRIBS(0);
if (mBufferPlaneCount > 1) ADD_PLANE_ATTRIBS(1);
if (mBufferPlaneCount > 2) ADD_PLANE_ATTRIBS(2);
if (mBufferPlaneCount > 3) ADD_PLANE_ATTRIBS(3);
#undef ADD_PLANE_ATTRIBS
attribs.AppendElement(LOCAL_EGL_NONE);
if (!aGLContext) return false;
if (!aGLContext->MakeCurrent()) {
LOGDMABUF(
("DMABufSurfaceRGBA::CreateTexture(): failed to make GL context "
"current"));
return false;
}
const auto& gle = gl::GLContextEGL::Cast(aGLContext);
const auto& egl = gle->mEgl;
mEGLImage =
egl->fCreateImage(LOCAL_EGL_NO_CONTEXT, LOCAL_EGL_LINUX_DMA_BUF_EXT,
nullptr, attribs.Elements());
CloseFileDescriptors(lockFD);
if (mEGLImage == LOCAL_EGL_NO_IMAGE) {
LOGDMABUF(("EGLImageKHR creation failed"));
return false;
}
aGLContext->fGenTextures(1, &mTexture);
const ScopedBindTexture savedTex(aGLContext, mTexture);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER,
LOCAL_GL_LINEAR);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER,
LOCAL_GL_LINEAR);
aGLContext->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, mEGLImage);
mGL = aGLContext;
return true;
}
void DMABufSurfaceRGBA::ReleaseTextures() {
LOGDMABUF(("DMABufSurfaceRGBA::ReleaseTextures() UID %d\n", mUID));
FenceDelete();
if (!mTexture && !mEGLImage) {
return;
}
if (!mGL) {
#ifdef NIGHTLY_BUILD
MOZ_DIAGNOSTIC_ASSERT(mGL, "Missing GL context!");
#else
NS_WARNING(
"DMABufSurfaceRGBA::ReleaseTextures(): Missing GL context! We're "
"leaking textures!");
return;
#endif
}
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
if (mTexture && mGL->MakeCurrent()) {
mGL->fDeleteTextures(1, &mTexture);
mTexture = 0;
}
if (mEGLImage != LOCAL_EGL_NO_IMAGE) {
egl->fDestroyImage(mEGLImage);
mEGLImage = LOCAL_EGL_NO_IMAGE;
}
mGL = nullptr;
}
void DMABufSurfaceRGBA::ReleaseSurface() {
MOZ_ASSERT(!IsMapped(), "We can't release mapped buffer!");
ReleaseTextures();
ReleaseDMABuf();
}
#ifdef MOZ_WAYLAND
bool DMABufSurfaceRGBA::CreateWlBuffer() {
MutexAutoLock lockFD(mSurfaceLock);
if (!OpenFileDescriptors(lockFD)) {
return false;
}
nsWaylandDisplay* waylandDisplay = widget::WaylandDisplayGet();
if (!waylandDisplay->GetDmabuf()) {
CloseFileDescriptors(lockFD);
return false;
}
struct zwp_linux_buffer_params_v1* params =
zwp_linux_dmabuf_v1_create_params(waylandDisplay->GetDmabuf());
zwp_linux_buffer_params_v1_add(params, mDmabufFds[0], 0, mOffsets[0],
mStrides[0], mBufferModifiers[0] >> 32,
mBufferModifiers[0] & 0xffffffff);
mWlBuffer = zwp_linux_buffer_params_v1_create_immed(
params, GetWidth(), GetHeight(), mDrmFormats[0], 0);
CloseFileDescriptors(lockFD);
return mWlBuffer != nullptr;
}
void DMABufSurfaceRGBA::ReleaseWlBuffer() {
MozClearPointer(mWlBuffer, wl_buffer_destroy);
}
#endif
// We should synchronize DMA Buffer object access from CPU to avoid potential
// cache incoherency and data loss.
// See
// https://01.org/linuxgraphics/gfx-docs/drm/driver-api/dma-buf.html#cpu-access-to-dma-buffer-objects
struct dma_buf_sync {
uint64_t flags;
};
#define DMA_BUF_SYNC_READ (1 << 0)
#define DMA_BUF_SYNC_WRITE (2 << 0)
#define DMA_BUF_SYNC_START (0 << 2)
#define DMA_BUF_SYNC_END (1 << 2)
#define DMA_BUF_BASE 'b'
#define DMA_BUF_IOCTL_SYNC _IOW(DMA_BUF_BASE, 0, struct dma_buf_sync)
static void SyncDmaBuf(int aFd, uint64_t aFlags) {
struct dma_buf_sync sync = {0};
sync.flags = aFlags | DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE;
while (true) {
int ret;
ret = ioctl(aFd, DMA_BUF_IOCTL_SYNC, &sync);
if (ret == -1 && errno == EINTR) {
continue;
} else if (ret == -1) {
LOGDMABUF(
("Failed to synchronize DMA buffer: %s FD %d", strerror(errno), aFd));
break;
} else {
break;
}
}
}
void* DMABufSurface::MapInternal(uint32_t aX, uint32_t aY, uint32_t aWidth,
uint32_t aHeight, uint32_t* aStride,
int aGbmFlags, int aPlane) {
NS_ASSERTION(!IsMapped(aPlane), "Already mapped!");
if (!mGbmBufferObject[aPlane]) {
NS_WARNING("We can't map DMABufSurfaceRGBA without mGbmBufferObject");
return nullptr;
}
LOGDMABUF(
("DMABufSurfaceRGBA::MapInternal() UID %d plane %d size %d x %d -> %d x "
"%d\n",
mUID, aPlane, aX, aY, aWidth, aHeight));
mMappedRegionStride[aPlane] = 0;
mMappedRegionData[aPlane] = nullptr;
mMappedRegion[aPlane] =
GbmLib::Map(mGbmBufferObject[aPlane], aX, aY, aWidth, aHeight, aGbmFlags,
&mMappedRegionStride[aPlane], &mMappedRegionData[aPlane]);
if (!mMappedRegion[aPlane]) {
LOGDMABUF((" Surface mapping failed: %s", strerror(errno)));
return nullptr;
}
if (aStride) {
*aStride = mMappedRegionStride[aPlane];
}
MutexAutoLock lockFD(mSurfaceLock);
if (OpenFileDescriptorForPlane(lockFD, aPlane)) {
SyncDmaBuf(mDmabufFds[aPlane], DMA_BUF_SYNC_START);
CloseFileDescriptorForPlane(lockFD, aPlane);
}
return mMappedRegion[aPlane];
}
void* DMABufSurfaceRGBA::MapReadOnly(uint32_t aX, uint32_t aY, uint32_t aWidth,
uint32_t aHeight, uint32_t* aStride) {
return MapInternal(aX, aY, aWidth, aHeight, aStride, GBM_BO_TRANSFER_READ);
}
void* DMABufSurfaceRGBA::MapReadOnly(uint32_t* aStride) {
return MapInternal(0, 0, mWidth, mHeight, aStride, GBM_BO_TRANSFER_READ);
}
void* DMABufSurfaceRGBA::Map(uint32_t aX, uint32_t aY, uint32_t aWidth,
uint32_t aHeight, uint32_t* aStride) {
return MapInternal(aX, aY, aWidth, aHeight, aStride,
GBM_BO_TRANSFER_READ_WRITE);
}
void* DMABufSurfaceRGBA::Map(uint32_t* aStride) {
return MapInternal(0, 0, mWidth, mHeight, aStride,
GBM_BO_TRANSFER_READ_WRITE);
}
void DMABufSurface::Unmap(int aPlane) {
if (mMappedRegion[aPlane]) {
LOGDMABUF(("DMABufSurface::Unmap() UID %d plane %d\n", mUID, aPlane));
MutexAutoLock lockFD(mSurfaceLock);
if (OpenFileDescriptorForPlane(lockFD, aPlane)) {
SyncDmaBuf(mDmabufFds[aPlane], DMA_BUF_SYNC_END);
CloseFileDescriptorForPlane(lockFD, aPlane);
}
GbmLib::Unmap(mGbmBufferObject[aPlane], mMappedRegionData[aPlane]);
mMappedRegion[aPlane] = nullptr;
mMappedRegionData[aPlane] = nullptr;
mMappedRegionStride[aPlane] = 0;
}
}
nsresult DMABufSurface::BuildSurfaceDescriptorBuffer(
SurfaceDescriptorBuffer& aSdBuffer, Image::BuildSdbFlags aFlags,
const std::function<MemoryOrShmem(uint32_t)>& aAllocate) {
return NS_ERROR_NOT_IMPLEMENTED;
}
#ifdef DEBUG
void DMABufSurfaceRGBA::DumpToFile(const char* pFile) {
uint32_t stride;
if (!MapReadOnly(&stride)) {
return;
}
cairo_surface_t* surface = nullptr;
auto unmap = MakeScopeExit([&] {
if (surface) {
cairo_surface_destroy(surface);
}
Unmap();
});
surface = cairo_image_surface_create_for_data(
(unsigned char*)mMappedRegion[0], CAIRO_FORMAT_ARGB32, mWidth, mHeight,
stride);
if (cairo_surface_status(surface) == CAIRO_STATUS_SUCCESS) {
cairo_surface_write_to_png(surface, pFile);
}
}
#endif
#if 0
// Copy from source surface by GL
# include "GLBlitHelper.h"
bool DMABufSurfaceRGBA::CopyFrom(class DMABufSurface* aSourceSurface,
GLContext* aGLContext) {
MOZ_ASSERT(aSourceSurface->GetTexture());
MOZ_ASSERT(GetTexture());
gfx::IntSize size(GetWidth(), GetHeight());
aGLContext->BlitHelper()->BlitTextureToTexture(aSourceSurface->GetTexture(),
GetTexture(), size, size);
return true;
}
#endif
// TODO - Clear the surface by EGL
void DMABufSurfaceRGBA::Clear() {
uint32_t destStride;
void* destData = Map(&destStride);
memset(destData, 0, GetHeight() * destStride);
Unmap();
}
bool DMABufSurfaceRGBA::HasAlpha() {
return !mGmbFormat || mGmbFormat->mHasAlpha;
}
gfx::SurfaceFormat DMABufSurfaceRGBA::GetFormat() {
return HasAlpha() ? gfx::SurfaceFormat::B8G8R8A8
: gfx::SurfaceFormat::B8G8R8X8;
}
// GL uses swapped R and B components so report accordingly.
gfx::SurfaceFormat DMABufSurfaceRGBA::GetFormatGL() {
return HasAlpha() ? gfx::SurfaceFormat::R8G8B8A8
: gfx::SurfaceFormat::R8G8B8X8;
}
already_AddRefed<DMABufSurfaceRGBA> DMABufSurfaceRGBA::CreateDMABufSurface(
int aWidth, int aHeight, int aDMABufSurfaceFlags) {
RefPtr<DMABufSurfaceRGBA> surf = new DMABufSurfaceRGBA();
if (!surf->Create(aWidth, aHeight, aDMABufSurfaceFlags)) {
return nullptr;
}
return surf.forget();
}
already_AddRefed<DMABufSurface> DMABufSurfaceRGBA::CreateDMABufSurface(
mozilla::gl::GLContext* aGLContext, const EGLImageKHR aEGLImage, int aWidth,
int aHeight) {
RefPtr<DMABufSurfaceRGBA> surf = new DMABufSurfaceRGBA();
if (!surf->Create(aGLContext, aEGLImage, aWidth, aHeight)) {
return nullptr;
}
return surf.forget();
}
already_AddRefed<DMABufSurfaceYUV> DMABufSurfaceYUV::CreateYUVSurface(
const VADRMPRIMESurfaceDescriptor& aDesc, int aWidth, int aHeight) {
RefPtr<DMABufSurfaceYUV> surf = new DMABufSurfaceYUV();
LOGDMABUF(("DMABufSurfaceYUV::CreateYUVSurface() UID %d from desc\n",
surf->GetUID()));
if (!surf->UpdateYUVData(aDesc, aWidth, aHeight, /* aCopy */ false)) {
return nullptr;
}
return surf.forget();
}
already_AddRefed<DMABufSurfaceYUV> DMABufSurfaceYUV::CopyYUVSurface(
const VADRMPRIMESurfaceDescriptor& aDesc, int aWidth, int aHeight) {
RefPtr<DMABufSurfaceYUV> surf = new DMABufSurfaceYUV();
LOGDMABUF(("DMABufSurfaceYUV::CreateYUVSurfaceCopy() UID %d from desc\n",
surf->GetUID()));
if (!surf->UpdateYUVData(aDesc, aWidth, aHeight, /* aCopy */ true)) {
return nullptr;
}
return surf.forget();
}
already_AddRefed<DMABufSurfaceYUV> DMABufSurfaceYUV::CreateYUVSurface(
int aWidth, int aHeight, void** aPixelData, int* aLineSizes) {
RefPtr<DMABufSurfaceYUV> surf = new DMABufSurfaceYUV();
LOGDMABUF(("DMABufSurfaceYUV::CreateYUVSurface() UID %d %d x %d\n",
surf->GetUID(), aWidth, aHeight));
if (!surf->Create(aWidth, aHeight, aPixelData, aLineSizes)) {
return nullptr;
}
return surf.forget();
}
DMABufSurfaceYUV::DMABufSurfaceYUV()
: DMABufSurface(SURFACE_NV12),
mWidth(),
mHeight(),
mWidthAligned(),
mHeightAligned(),
mTexture() {
for (int i = 0; i < DMABUF_BUFFER_PLANES; i++) {
mEGLImage[i] = LOCAL_EGL_NO_IMAGE;
}
}
DMABufSurfaceYUV::~DMABufSurfaceYUV() { ReleaseSurface(); }
bool DMABufSurfaceYUV::OpenFileDescriptorForPlane(
const MutexAutoLock& aProofOfLock, int aPlane) {
// The fd is already opened, no need to reopen.
// This can happen when we import dmabuf surface from VA-API decoder,
// mGbmBufferObject is null and we don't close
// file descriptors for surface as they are our only reference to it.
if (mDmabufFds[aPlane] >= 0) {
return true;
}
if (mGbmBufferObject[aPlane] == nullptr) {
LOGDMABUF(
("DMABufSurfaceYUV::OpenFileDescriptorForPlane: Missing "
"mGbmBufferObject object!"));
return false;
}
mDmabufFds[aPlane] = GbmLib::GetFd(mGbmBufferObject[aPlane]);
if (mDmabufFds[aPlane] < 0) {
CloseFileDescriptors(aProofOfLock);
return false;
}
return true;
}
void DMABufSurfaceYUV::CloseFileDescriptorForPlane(
const MutexAutoLock& aProofOfLock, int aPlane, bool aForceClose = false) {
if ((aForceClose || mGbmBufferObject[aPlane]) && mDmabufFds[aPlane] >= 0) {
close(mDmabufFds[aPlane]);
mDmabufFds[aPlane] = -1;
}
}
bool DMABufSurfaceYUV::ImportPRIMESurfaceDescriptor(
const VADRMPRIMESurfaceDescriptor& aDesc, int aWidth, int aHeight) {
LOGDMABUF(("DMABufSurfaceYUV::ImportPRIMESurfaceDescriptor() UID %d", mUID));
// Already exists?
MOZ_DIAGNOSTIC_ASSERT(mDmabufFds[0] < 0);
if (aDesc.num_layers > DMABUF_BUFFER_PLANES ||
aDesc.num_objects > DMABUF_BUFFER_PLANES) {
LOGDMABUF((" Can't import, wrong layers/objects number (%d, %d)",
aDesc.num_layers, aDesc.num_objects));
return false;
}
if (aDesc.fourcc == VA_FOURCC_NV12) {
mSurfaceType = SURFACE_NV12;
} else if (aDesc.fourcc == VA_FOURCC_P010) {
mSurfaceType = SURFACE_NV12;
} else if (aDesc.fourcc == VA_FOURCC_YV12) {
mSurfaceType = SURFACE_YUV420;
} else {
LOGDMABUF((" Can't import surface data of 0x%x format", aDesc.fourcc));
return false;
}
mBufferPlaneCount = aDesc.num_layers;
for (unsigned int i = 0; i < aDesc.num_layers; i++) {
// All supported formats have 4:2:0 chroma sub-sampling.
unsigned int subsample = i == 0 ? 0 : 1;
unsigned int object = aDesc.layers[i].object_index[0];
mBufferModifiers[i] = aDesc.objects[object].drm_format_modifier;
mDrmFormats[i] = aDesc.layers[i].drm_format;
mOffsets[i] = aDesc.layers[i].offset[0];
mStrides[i] = aDesc.layers[i].pitch[0];
mWidthAligned[i] = aDesc.width >> subsample;
mHeightAligned[i] = aDesc.height >> subsample;
mWidth[i] = aWidth >> subsample;
mHeight[i] = aHeight >> subsample;
LOGDMABUF((" plane %d size %d x %d format %x", i, mWidth[i], mHeight[i],
mDrmFormats[i]));
}
return true;
}
bool DMABufSurfaceYUV::MoveYUVDataImpl(const VADRMPRIMESurfaceDescriptor& aDesc,
int aWidth, int aHeight) {
if (!ImportPRIMESurfaceDescriptor(aDesc, aWidth, aHeight)) {
return false;
}
for (unsigned int i = 0; i < aDesc.num_layers; i++) {
unsigned int object = aDesc.layers[i].object_index[0];
// Keep VADRMPRIMESurfaceDescriptor untouched and dup() dmabuf
// file descriptors.
mDmabufFds[i] = dup(aDesc.objects[object].fd);
}
return true;
}
void DMABufSurfaceYUV::ReleaseVADRMPRIMESurfaceDescriptor(
VADRMPRIMESurfaceDescriptor& aDesc) {
for (unsigned int i = 0; i < aDesc.num_layers; i++) {
unsigned int object = aDesc.layers[i].object_index[0];
if (aDesc.objects[object].fd != -1) {
close(aDesc.objects[object].fd);
aDesc.objects[object].fd = -1;
}
}
}
bool DMABufSurfaceYUV::CreateYUVPlane(int aPlane) {
LOGDMABUF(("DMABufSurfaceYUV::CreateYUVPlane() UID %d size %d x %d", mUID,
mWidth[aPlane], mHeight[aPlane]));
if (!GetDMABufDevice()->GetGbmDevice()) {
LOGDMABUF((" Missing GbmDevice!"));
return false;
}
MOZ_DIAGNOSTIC_ASSERT(mGbmBufferObject[aPlane] == nullptr);
bool useModifiers = (mBufferModifiers[aPlane] != DRM_FORMAT_MOD_INVALID);
if (useModifiers) {
LOGDMABUF((" Creating with modifiers"));
mGbmBufferObject[aPlane] = GbmLib::CreateWithModifiers(
GetDMABufDevice()->GetGbmDevice(), mWidth[aPlane], mHeight[aPlane],
mDrmFormats[aPlane], mBufferModifiers + aPlane, 1);
}
if (!mGbmBufferObject[aPlane]) {
LOGDMABUF((" Creating without modifiers"));
mGbmBufferObject[aPlane] = GbmLib::Create(
GetDMABufDevice()->GetGbmDevice(), mWidth[aPlane], mHeight[aPlane],
mDrmFormats[aPlane], GBM_BO_USE_RENDERING);
mBufferModifiers[aPlane] = DRM_FORMAT_MOD_INVALID;
}
if (!mGbmBufferObject[aPlane]) {
LOGDMABUF((" Failed to create GbmBufferObject: %s", strerror(errno)));
return false;
}
mStrides[aPlane] = GbmLib::GetStride(mGbmBufferObject[aPlane]);
mOffsets[aPlane] = GbmLib::GetOffset(mGbmBufferObject[aPlane], 0);
mWidthAligned[aPlane] = mWidth[aPlane];
mHeightAligned[aPlane] = mHeight[aPlane];
return true;
}
bool DMABufSurfaceYUV::CopyYUVDataImpl(const VADRMPRIMESurfaceDescriptor& aDesc,
int aWidth, int aHeight) {
RefPtr<DMABufSurfaceYUV> tmpSurf = CreateYUVSurface(aDesc, aWidth, aHeight);
if (!tmpSurf) {
return false;
}
if (!ImportPRIMESurfaceDescriptor(aDesc, aWidth, aHeight)) {
return false;
}
StaticMutexAutoLock lock(sSnapshotContextMutex);
RefPtr<GLContext> context = ClaimSnapshotGLContext();
auto releaseTextures = MakeScopeExit([&] {
tmpSurf->ReleaseTextures();
ReleaseTextures();
ReturnSnapshotGLContext(context);
});
for (int i = 0; i < mBufferPlaneCount; i++) {
if (!tmpSurf->CreateTexture(context, i)) {
return false;
}
if (!CreateYUVPlane(i) || !CreateTexture(context, i)) {
return false;
}
gfx::IntSize size(GetWidth(i), GetHeight(i));
context->BlitHelper()->BlitTextureToTexture(
tmpSurf->GetTexture(i), GetTexture(i), size, size, LOCAL_GL_TEXTURE_2D,
LOCAL_GL_TEXTURE_2D);
}
return true;
}
bool DMABufSurfaceYUV::UpdateYUVData(const VADRMPRIMESurfaceDescriptor& aDesc,
int aWidth, int aHeight, bool aCopy) {
LOGDMABUF(("DMABufSurfaceYUV::UpdateYUVData() UID %d copy %d", mUID, aCopy));
return aCopy ? CopyYUVDataImpl(aDesc, aWidth, aHeight)
: MoveYUVDataImpl(aDesc, aWidth, aHeight);
}
bool DMABufSurfaceYUV::CreateLinearYUVPlane(int aPlane, int aWidth, int aHeight,
int aDrmFormat) {
LOGDMABUF(("DMABufSurfaceYUV::CreateLinearYUVPlane() UID %d size %d x %d",
mUID, aWidth, aHeight));
if (!GetDMABufDevice()->GetGbmDevice()) {
LOGDMABUF((" Missing GbmDevice!"));
return false;
}
mWidth[aPlane] = aWidth;
mHeight[aPlane] = aHeight;
mDrmFormats[aPlane] = aDrmFormat;
mGbmBufferObject[aPlane] =
GbmLib::Create(GetDMABufDevice()->GetGbmDevice(), aWidth, aHeight,
aDrmFormat, GBM_BO_USE_LINEAR);
if (!mGbmBufferObject[aPlane]) {
LOGDMABUF((" Failed to create GbmBufferObject: %s", strerror(errno)));
return false;
}
mStrides[aPlane] = GbmLib::GetStride(mGbmBufferObject[aPlane]);
mDmabufFds[aPlane] = -1;
return true;
}
void DMABufSurfaceYUV::UpdateYUVPlane(int aPlane, void* aPixelData,
int aLineSize) {
LOGDMABUF(
("DMABufSurfaceYUV::UpdateYUVPlane() UID %d plane %d", mUID, aPlane));
if (aLineSize == mWidth[aPlane] &&
(int)mMappedRegionStride[aPlane] == mWidth[aPlane]) {
memcpy(mMappedRegion[aPlane], aPixelData, aLineSize * mHeight[aPlane]);
} else {
char* src = (char*)aPixelData;
char* dest = (char*)mMappedRegion[aPlane];
for (int i = 0; i < mHeight[aPlane]; i++) {
memcpy(dest, src, mWidth[aPlane]);
src += aLineSize;
dest += mMappedRegionStride[aPlane];
}
}
}
bool DMABufSurfaceYUV::UpdateYUVData(void** aPixelData, int* aLineSizes) {
LOGDMABUF(("DMABufSurfaceYUV::UpdateYUVData() UID %d", mUID));
if (mSurfaceType != SURFACE_YUV420) {
LOGDMABUF((" UpdateYUVData can upload YUV420 surface type only!"));
return false;
}
if (mBufferPlaneCount != 3) {
LOGDMABUF((" DMABufSurfaceYUV planes does not match!"));
return false;
}
auto unmapBuffers = MakeScopeExit([&] {
Unmap(0);
Unmap(1);
Unmap(2);
});
// Map planes
for (int i = 0; i < mBufferPlaneCount; i++) {
MapInternal(0, 0, mWidth[i], mHeight[i], nullptr, GBM_BO_TRANSFER_WRITE, i);
if (!mMappedRegion[i]) {
LOGDMABUF((" DMABufSurfaceYUV plane can't be mapped!"));
return false;
}
if ((int)mMappedRegionStride[i] < mWidth[i]) {
LOGDMABUF((" DMABufSurfaceYUV plane size stride does not match!"));
return false;
}
}
// Copy planes
for (int i = 0; i < mBufferPlaneCount; i++) {
UpdateYUVPlane(i, aPixelData[i], aLineSizes[i]);
}
return true;
}
bool DMABufSurfaceYUV::Create(int aWidth, int aHeight, void** aPixelData,
int* aLineSizes) {
LOGDMABUF(("DMABufSurfaceYUV::Create() UID %d size %d x %d", mUID, aWidth,
aHeight));
mSurfaceType = SURFACE_YUV420;
mBufferPlaneCount = 3;
if (!CreateLinearYUVPlane(0, aWidth, aHeight, GBM_FORMAT_R8)) {
return false;
}
if (!CreateLinearYUVPlane(1, aWidth >> 1, aHeight >> 1, GBM_FORMAT_R8)) {
return false;
}
if (!CreateLinearYUVPlane(2, aWidth >> 1, aHeight >> 1, GBM_FORMAT_R8)) {
return false;
}
if (!aPixelData || !aLineSizes) {
return true;
}
return UpdateYUVData(aPixelData, aLineSizes);
}
bool DMABufSurfaceYUV::Create(const SurfaceDescriptor& aDesc) {
return ImportSurfaceDescriptor(aDesc);
}
bool DMABufSurfaceYUV::ImportSurfaceDescriptor(
const SurfaceDescriptorDMABuf& aDesc) {
mBufferPlaneCount = aDesc.fds().Length();
mSurfaceType = (mBufferPlaneCount == 2) ? SURFACE_NV12 : SURFACE_YUV420;
mColorSpace = aDesc.yUVColorSpace();
mColorRange = aDesc.colorRange();
mUID = aDesc.uid();
LOGDMABUF(("DMABufSurfaceYUV::ImportSurfaceDescriptor() UID %d", mUID));
MOZ_RELEASE_ASSERT(mBufferPlaneCount <= DMABUF_BUFFER_PLANES);
for (int i = 0; i < mBufferPlaneCount; i++) {
mDmabufFds[i] = aDesc.fds()[i].ClonePlatformHandle().release();
if (mDmabufFds[i] < 0) {
LOGDMABUF((" failed to get DMABuf plane file descriptor: %s",
strerror(errno)));
return false;
}
mWidth[i] = aDesc.width()[i];
mHeight[i] = aDesc.height()[i];
mWidthAligned[i] = aDesc.widthAligned()[i];
mHeightAligned[i] = aDesc.heightAligned()[i];
mDrmFormats[i] = aDesc.format()[i];
mStrides[i] = aDesc.strides()[i];
mOffsets[i] = aDesc.offsets()[i];
mBufferModifiers[i] = aDesc.modifier()[i];
LOGDMABUF((" plane %d fd %d size %d x %d format %x", i, mDmabufFds[i],
mWidth[i], mHeight[i], mDrmFormats[i]));
}
if (aDesc.fence().Length() > 0) {
mSyncFd = aDesc.fence()[0].ClonePlatformHandle().release();
if (mSyncFd < 0) {
LOGDMABUF(
(" failed to get GL fence file descriptor: %s", strerror(errno)));
return false;
}
}
if (aDesc.refCount().Length() > 0) {
GlobalRefCountImport(aDesc.refCount()[0].ClonePlatformHandle().release());
}
return true;
}
bool DMABufSurfaceYUV::Serialize(
mozilla::layers::SurfaceDescriptor& aOutDescriptor) {
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> width;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> height;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> widthBytes;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> heightBytes;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> format;
AutoTArray<ipc::FileDescriptor, DMABUF_BUFFER_PLANES> fds;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> strides;
AutoTArray<uint32_t, DMABUF_BUFFER_PLANES> offsets;
AutoTArray<uint64_t, DMABUF_BUFFER_PLANES> modifiers;
AutoTArray<ipc::FileDescriptor, 1> fenceFDs;
AutoTArray<ipc::FileDescriptor, 1> refCountFDs;
LOGDMABUF(("DMABufSurfaceYUV::Serialize() UID %d", mUID));
MutexAutoLock lockFD(mSurfaceLock);
if (!OpenFileDescriptors(lockFD)) {
return false;
}
for (int i = 0; i < mBufferPlaneCount; i++) {
width.AppendElement(mWidth[i]);
height.AppendElement(mHeight[i]);
widthBytes.AppendElement(mWidthAligned[i]);
heightBytes.AppendElement(mHeightAligned[i]);
format.AppendElement(mDrmFormats[i]);
fds.AppendElement(ipc::FileDescriptor(mDmabufFds[i]));
strides.AppendElement(mStrides[i]);
offsets.AppendElement(mOffsets[i]);
modifiers.AppendElement(mBufferModifiers[i]);
}
CloseFileDescriptors(lockFD);
if (mSync) {
fenceFDs.AppendElement(ipc::FileDescriptor(mSyncFd));
}
if (mGlobalRefCountFd) {
refCountFDs.AppendElement(ipc::FileDescriptor(GlobalRefCountExport()));
}
aOutDescriptor = SurfaceDescriptorDMABuf(
mSurfaceType, modifiers, 0, fds, width, height, widthBytes, heightBytes,
format, strides, offsets, GetYUVColorSpace(), mColorRange, fenceFDs, mUID,
refCountFDs);
return true;
}
bool DMABufSurfaceYUV::CreateEGLImage(GLContext* aGLContext, int aPlane) {
LOGDMABUF(
("DMABufSurfaceYUV::CreateEGLImage() UID %d plane %d", mUID, aPlane));
MOZ_ASSERT(mEGLImage[aPlane] == LOCAL_EGL_NO_IMAGE,
"EGLImage is already created!");
MOZ_ASSERT(aGLContext, "Missing GLContext!");
const auto& gle = gl::GLContextEGL::Cast(aGLContext);
const auto& egl = gle->mEgl;
MutexAutoLock lockFD(mSurfaceLock);
if (!OpenFileDescriptorForPlane(lockFD, aPlane)) {
LOGDMABUF((" failed to open dmabuf file descriptors"));
return false;
}
nsTArray<EGLint> attribs;
attribs.AppendElement(LOCAL_EGL_WIDTH);
attribs.AppendElement(mWidthAligned[aPlane]);
attribs.AppendElement(LOCAL_EGL_HEIGHT);
attribs.AppendElement(mHeightAligned[aPlane]);
attribs.AppendElement(LOCAL_EGL_LINUX_DRM_FOURCC_EXT);
attribs.AppendElement(mDrmFormats[aPlane]);
#define ADD_PLANE_ATTRIBS_NV12(plane_idx) \
attribs.AppendElement(LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_FD_EXT); \
attribs.AppendElement(mDmabufFds[aPlane]); \
attribs.AppendElement(LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_OFFSET_EXT); \
attribs.AppendElement((int)mOffsets[aPlane]); \
attribs.AppendElement(LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_PITCH_EXT); \
attribs.AppendElement((int)mStrides[aPlane]); \
if (mBufferModifiers[aPlane] != DRM_FORMAT_MOD_INVALID) { \
attribs.AppendElement( \
LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_MODIFIER_LO_EXT); \
attribs.AppendElement(mBufferModifiers[aPlane] & 0xFFFFFFFF); \
attribs.AppendElement( \
LOCAL_EGL_DMA_BUF_PLANE##plane_idx##_MODIFIER_HI_EXT); \
attribs.AppendElement(mBufferModifiers[aPlane] >> 32); \
}
ADD_PLANE_ATTRIBS_NV12(0);
#undef ADD_PLANE_ATTRIBS_NV12
attribs.AppendElement(LOCAL_EGL_NONE);
mEGLImage[aPlane] =
egl->fCreateImage(LOCAL_EGL_NO_CONTEXT, LOCAL_EGL_LINUX_DMA_BUF_EXT,
nullptr, attribs.Elements());
CloseFileDescriptorForPlane(lockFD, aPlane);
if (mEGLImage[aPlane] == LOCAL_EGL_NO_IMAGE) {
LOGDMABUF((" EGLImageKHR creation failed"));
return false;
}
LOGDMABUF((" Success."));
return true;
}
void DMABufSurfaceYUV::ReleaseEGLImages(GLContext* aGLContext) {
LOGDMABUF(("DMABufSurfaceYUV::ReleaseEGLImages() UID %d", mUID));
MOZ_ASSERT(aGLContext, "Missing GLContext!");
const auto& gle = gl::GLContextEGL::Cast(aGLContext);
const auto& egl = gle->mEgl;
for (int i = 0; i < mBufferPlaneCount; i++) {
if (mEGLImage[i] != LOCAL_EGL_NO_IMAGE) {
egl->fDestroyImage(mEGLImage[i]);
mEGLImage[i] = LOCAL_EGL_NO_IMAGE;
}
}
}
bool DMABufSurfaceYUV::CreateTexture(GLContext* aGLContext, int aPlane) {
LOGDMABUF(
("DMABufSurfaceYUV::CreateTexture() UID %d plane %d", mUID, aPlane));
MOZ_ASSERT(!mTexture[aPlane], "Texture is already created!");
MOZ_ASSERT(aGLContext, "Missing GLContext!");
if (!aGLContext->MakeCurrent()) {
LOGDMABUF((" Failed to make GL context current."));
return false;
}
if (!CreateEGLImage(aGLContext, aPlane)) {
return false;
}
aGLContext->fGenTextures(1, &mTexture[aPlane]);
const ScopedBindTexture savedTex(aGLContext, mTexture[aPlane]);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER,
LOCAL_GL_LINEAR);
aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER,
LOCAL_GL_LINEAR);
aGLContext->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, mEGLImage[aPlane]);
mGL = aGLContext;
return true;
}
void DMABufSurfaceYUV::ReleaseTextures() {
LOGDMABUF(("DMABufSurfaceYUV::ReleaseTextures() UID %d", mUID));
FenceDelete();
bool textureActive = false;
for (int i = 0; i < mBufferPlaneCount; i++) {
if (mTexture[i] || mEGLImage[i]) {
textureActive = true;
break;
}
}
if (!textureActive) {
return;
}
if (!mGL) {
#ifdef NIGHTLY_BUILD
MOZ_DIAGNOSTIC_ASSERT(mGL, "Missing GL context!");
#else
NS_WARNING(
"DMABufSurfaceYUV::ReleaseTextures(): Missing GL context! We're "
"leaking textures!");
return;
#endif
}
if (!mGL->MakeCurrent()) {
NS_WARNING(
"DMABufSurfaceYUV::ReleaseTextures(): MakeCurrent failed. We're "
"leaking textures!");
return;
}
mGL->fDeleteTextures(DMABUF_BUFFER_PLANES, mTexture);
for (int i = 0; i < DMABUF_BUFFER_PLANES; i++) {
mTexture[i] = 0;
}
ReleaseEGLImages(mGL);
mGL = nullptr;
}
bool DMABufSurfaceYUV::VerifyTextureCreation() {
LOGDMABUF(("DMABufSurfaceYUV::VerifyTextureCreation() UID %d", mUID));
StaticMutexAutoLock lock(sSnapshotContextMutex);
RefPtr<GLContext> context = ClaimSnapshotGLContext();
auto release = MakeScopeExit([&] {
ReleaseEGLImages(context);
ReturnSnapshotGLContext(context);
});
for (int i = 0; i < mBufferPlaneCount; i++) {
if (!CreateEGLImage(context, i)) {
LOGDMABUF((" failed to create EGL image!"));
return false;
}
}
LOGDMABUF((" success"));
return true;
}
gfx::SurfaceFormat DMABufSurfaceYUV::GetFormat() {
switch (mSurfaceType) {
case SURFACE_NV12:
return gfx::SurfaceFormat::NV12;
case SURFACE_YUV420:
return gfx::SurfaceFormat::YUV;
default:
NS_WARNING("DMABufSurfaceYUV::GetFormat(): Wrong surface format!");
return gfx::SurfaceFormat::UNKNOWN;
}
}
// GL uses swapped R and B components so report accordingly.
gfx::SurfaceFormat DMABufSurfaceYUV::GetFormatGL() { return GetFormat(); }
int DMABufSurfaceYUV::GetTextureCount() {
switch (mSurfaceType) {
case SURFACE_NV12:
return 2;
case SURFACE_YUV420:
return 3;
default:
NS_WARNING("DMABufSurfaceYUV::GetTextureCount(): Wrong surface format!");
return 1;
}
}
void DMABufSurfaceYUV::ReleaseSurface() {
LOGDMABUF(("DMABufSurfaceYUV::ReleaseSurface() UID %d", mUID));
ReleaseTextures();
ReleaseDMABuf();
}
nsresult DMABufSurfaceYUV::ReadIntoBuffer(uint8_t* aData, int32_t aStride,
const gfx::IntSize& aSize,
gfx::SurfaceFormat aFormat) {
LOGDMABUF(("DMABufSurfaceYUV::ReadIntoBuffer UID %d", mUID));
MOZ_ASSERT(aSize.width == GetWidth());
MOZ_ASSERT(aSize.height == GetHeight());
StaticMutexAutoLock lock(sSnapshotContextMutex);
RefPtr<GLContext> context = ClaimSnapshotGLContext();
auto releaseTextures = mozilla::MakeScopeExit([&] {
ReleaseTextures();
ReturnSnapshotGLContext(context);
});
for (int i = 0; i < GetTextureCount(); i++) {
if (!GetTexture(i) && !CreateTexture(context, i)) {
LOGDMABUF(("ReadIntoBuffer: Failed to create DMABuf textures."));
return NS_ERROR_FAILURE;
}
}
ScopedTexture scopedTex(context);
ScopedBindTexture boundTex(context, scopedTex.Texture());
context->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, LOCAL_GL_RGBA, aSize.width,
aSize.height, 0, LOCAL_GL_RGBA, LOCAL_GL_UNSIGNED_BYTE,
nullptr);
ScopedFramebufferForTexture autoFBForTex(context, scopedTex.Texture());
if (!autoFBForTex.IsComplete()) {
LOGDMABUF(("ReadIntoBuffer: ScopedFramebufferForTexture failed."));
return NS_ERROR_FAILURE;
}
const gl::OriginPos destOrigin = gl::OriginPos::BottomLeft;
{
const ScopedBindFramebuffer bindFB(context, autoFBForTex.FB());
if (!context->BlitHelper()->Blit(this, aSize, destOrigin)) {
LOGDMABUF(("ReadIntoBuffer: Blit failed."));
return NS_ERROR_FAILURE;
}
}
ScopedBindFramebuffer bind(context, autoFBForTex.FB());
ReadPixelsIntoBuffer(context, aData, aStride, aSize, aFormat);
return NS_OK;
}
already_AddRefed<gfx::DataSourceSurface>
DMABufSurfaceYUV::GetAsSourceSurface() {
LOGDMABUF(("DMABufSurfaceYUV::GetAsSourceSurface UID %d", mUID));
gfx::IntSize size(GetWidth(), GetHeight());
const auto format = gfx::SurfaceFormat::B8G8R8A8;
RefPtr<gfx::DataSourceSurface> source =
gfx::Factory::CreateDataSourceSurface(size, format);
if (NS_WARN_IF(!source)) {
LOGDMABUF(("GetAsSourceSurface: CreateDataSourceSurface failed."));
return nullptr;
}
gfx::DataSourceSurface::ScopedMap map(source,
gfx::DataSourceSurface::READ_WRITE);
if (NS_WARN_IF(!map.IsMapped())) {
LOGDMABUF(("GetAsSourceSurface: Mapping surface failed."));
return nullptr;
}
if (NS_WARN_IF(NS_FAILED(
ReadIntoBuffer(map.GetData(), map.GetStride(), size, format)))) {
LOGDMABUF(("GetAsSourceSurface: Reading into buffer failed."));
return nullptr;
}
return source.forget();
}
nsresult DMABufSurfaceYUV::BuildSurfaceDescriptorBuffer(
SurfaceDescriptorBuffer& aSdBuffer, Image::BuildSdbFlags aFlags,
const std::function<MemoryOrShmem(uint32_t)>& aAllocate) {
LOGDMABUF(("DMABufSurfaceYUV::BuildSurfaceDescriptorBuffer UID %d", mUID));
gfx::IntSize size(GetWidth(), GetHeight());
const auto format = gfx::SurfaceFormat::B8G8R8A8;
uint8_t* buffer = nullptr;
int32_t stride = 0;
nsresult rv = Image::AllocateSurfaceDescriptorBufferRgb(
size, format, buffer, aSdBuffer, stride, aAllocate);
if (NS_WARN_IF(NS_FAILED(rv))) {
LOGDMABUF(("BuildSurfaceDescriptorBuffer allocate descriptor failed"));
return rv;
}
return ReadIntoBuffer(buffer, stride, size, format);
}
#if 0
void DMABufSurfaceYUV::ClearPlane(int aPlane) {
if (!MapInternal(0, 0, mWidth[aPlane], mHeight[aPlane], nullptr,
GBM_BO_TRANSFER_WRITE, aPlane)) {
return;
}
if ((int)mMappedRegionStride[aPlane] < mWidth[aPlane]) {
return;
}
memset((char*)mMappedRegion[aPlane], 0,
mMappedRegionStride[aPlane] * mHeight[aPlane]);
Unmap(aPlane);
}
# include "gfxUtils.h"
void DMABufSurfaceYUV::DumpToFile(const char* aFile) {
RefPtr<gfx::DataSourceSurface> surf = GetAsSourceSurface();
gfxUtils::WriteAsPNG(surf, aFile);
}
#endif
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