forked from mirrors/gecko-dev
98899f5e48
This fixes an nsStringBuffer leak on shutdown with Wayland, because we leak the render node among other things. Differential Revision: https://phabricator.services.mozilla.com/D189374
346 lines
11 KiB
C++
346 lines
11 KiB
C++
/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:expandtab:shiftwidth=2:tabstop=2:
|
|
*/
|
|
/* 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 "DMABufLibWrapper.h"
|
|
#ifdef MOZ_WAYLAND
|
|
# include "nsWaylandDisplay.h"
|
|
#endif
|
|
#include "base/message_loop.h" // for MessageLoop
|
|
#include "mozilla/StaticPrefs_widget.h"
|
|
#include "mozilla/StaticPrefs_media.h"
|
|
#include "mozilla/gfx/gfxVars.h"
|
|
#include "WidgetUtilsGtk.h"
|
|
#include "gfxConfig.h"
|
|
#include "nsIGfxInfo.h"
|
|
#include "mozilla/Components.h"
|
|
#include "mozilla/ClearOnShutdown.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <dlfcn.h>
|
|
#include <mutex>
|
|
#include <unistd.h>
|
|
#include "gbm.h"
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
namespace mozilla {
|
|
namespace widget {
|
|
|
|
bool sUseWebGLDmabufBackend = true;
|
|
|
|
#define GBMLIB_NAME "libgbm.so.1"
|
|
#define DRMLIB_NAME "libdrm.so.2"
|
|
|
|
// Use static lock to protect dri operation as
|
|
// gbm_dri.c is not thread safe.
|
|
// https://gitlab.freedesktop.org/mesa/mesa/-/issues/4422
|
|
mozilla::StaticMutex GbmLib::sDRILock MOZ_UNANNOTATED;
|
|
|
|
bool GbmLib::sLoaded = false;
|
|
void* GbmLib::sGbmLibHandle = nullptr;
|
|
void* GbmLib::sXf86DrmLibHandle = nullptr;
|
|
CreateDeviceFunc GbmLib::sCreateDevice;
|
|
DestroyDeviceFunc GbmLib::sDestroyDevice;
|
|
CreateFunc GbmLib::sCreate;
|
|
CreateWithModifiersFunc GbmLib::sCreateWithModifiers;
|
|
GetModifierFunc GbmLib::sGetModifier;
|
|
GetStrideFunc GbmLib::sGetStride;
|
|
GetFdFunc GbmLib::sGetFd;
|
|
DestroyFunc GbmLib::sDestroy;
|
|
MapFunc GbmLib::sMap;
|
|
UnmapFunc GbmLib::sUnmap;
|
|
GetPlaneCountFunc GbmLib::sGetPlaneCount;
|
|
GetHandleForPlaneFunc GbmLib::sGetHandleForPlane;
|
|
GetStrideForPlaneFunc GbmLib::sGetStrideForPlane;
|
|
GetOffsetFunc GbmLib::sGetOffset;
|
|
DeviceIsFormatSupportedFunc GbmLib::sDeviceIsFormatSupported;
|
|
DrmPrimeHandleToFDFunc GbmLib::sDrmPrimeHandleToFD;
|
|
CreateSurfaceFunc GbmLib::sCreateSurface;
|
|
DestroySurfaceFunc GbmLib::sDestroySurface;
|
|
|
|
bool GbmLib::IsLoaded() {
|
|
return sCreateDevice != nullptr && sDestroyDevice != nullptr &&
|
|
sCreate != nullptr && sCreateWithModifiers != nullptr &&
|
|
sGetModifier != nullptr && sGetStride != nullptr &&
|
|
sGetFd != nullptr && sDestroy != nullptr && sMap != nullptr &&
|
|
sUnmap != nullptr && sGetPlaneCount != nullptr &&
|
|
sGetHandleForPlane != nullptr && sGetStrideForPlane != nullptr &&
|
|
sGetOffset != nullptr && sDeviceIsFormatSupported != nullptr &&
|
|
sDrmPrimeHandleToFD != nullptr && sCreateSurface != nullptr &&
|
|
sDestroySurface != nullptr;
|
|
}
|
|
|
|
bool GbmLib::Load() {
|
|
static bool sTriedToLoad = false;
|
|
if (sTriedToLoad) {
|
|
return sLoaded;
|
|
}
|
|
|
|
sTriedToLoad = true;
|
|
|
|
MOZ_ASSERT(!sGbmLibHandle);
|
|
MOZ_ASSERT(!sLoaded);
|
|
|
|
LOGDMABUF(("Loading DMABuf system library %s ...\n", GBMLIB_NAME));
|
|
|
|
sGbmLibHandle = dlopen(GBMLIB_NAME, RTLD_LAZY | RTLD_LOCAL);
|
|
if (!sGbmLibHandle) {
|
|
LOGDMABUF(("Failed to load %s, dmabuf isn't available.\n", GBMLIB_NAME));
|
|
return false;
|
|
}
|
|
|
|
sCreateDevice = (CreateDeviceFunc)dlsym(sGbmLibHandle, "gbm_create_device");
|
|
sDestroyDevice =
|
|
(DestroyDeviceFunc)dlsym(sGbmLibHandle, "gbm_device_destroy");
|
|
sCreate = (CreateFunc)dlsym(sGbmLibHandle, "gbm_bo_create");
|
|
sCreateWithModifiers = (CreateWithModifiersFunc)dlsym(
|
|
sGbmLibHandle, "gbm_bo_create_with_modifiers");
|
|
sGetModifier = (GetModifierFunc)dlsym(sGbmLibHandle, "gbm_bo_get_modifier");
|
|
sGetStride = (GetStrideFunc)dlsym(sGbmLibHandle, "gbm_bo_get_stride");
|
|
sGetFd = (GetFdFunc)dlsym(sGbmLibHandle, "gbm_bo_get_fd");
|
|
sDestroy = (DestroyFunc)dlsym(sGbmLibHandle, "gbm_bo_destroy");
|
|
sMap = (MapFunc)dlsym(sGbmLibHandle, "gbm_bo_map");
|
|
sUnmap = (UnmapFunc)dlsym(sGbmLibHandle, "gbm_bo_unmap");
|
|
sGetPlaneCount =
|
|
(GetPlaneCountFunc)dlsym(sGbmLibHandle, "gbm_bo_get_plane_count");
|
|
sGetHandleForPlane = (GetHandleForPlaneFunc)dlsym(
|
|
sGbmLibHandle, "gbm_bo_get_handle_for_plane");
|
|
sGetStrideForPlane = (GetStrideForPlaneFunc)dlsym(
|
|
sGbmLibHandle, "gbm_bo_get_stride_for_plane");
|
|
sGetOffset = (GetOffsetFunc)dlsym(sGbmLibHandle, "gbm_bo_get_offset");
|
|
sDeviceIsFormatSupported = (DeviceIsFormatSupportedFunc)dlsym(
|
|
sGbmLibHandle, "gbm_device_is_format_supported");
|
|
sCreateSurface =
|
|
(CreateSurfaceFunc)dlsym(sGbmLibHandle, "gbm_surface_create");
|
|
sDestroySurface =
|
|
(DestroySurfaceFunc)dlsym(sGbmLibHandle, "gbm_surface_destroy");
|
|
|
|
sXf86DrmLibHandle = dlopen(DRMLIB_NAME, RTLD_LAZY | RTLD_LOCAL);
|
|
if (!sXf86DrmLibHandle) {
|
|
LOGDMABUF(("Failed to load %s, dmabuf isn't available.\n", DRMLIB_NAME));
|
|
return false;
|
|
}
|
|
sDrmPrimeHandleToFD =
|
|
(DrmPrimeHandleToFDFunc)dlsym(sXf86DrmLibHandle, "drmPrimeHandleToFD");
|
|
sLoaded = IsLoaded();
|
|
if (!sLoaded) {
|
|
LOGDMABUF(("Failed to load all symbols from %s\n", GBMLIB_NAME));
|
|
}
|
|
return sLoaded;
|
|
}
|
|
|
|
int DMABufDevice::GetDmabufFD(uint32_t aGEMHandle) {
|
|
int fd;
|
|
return GbmLib::DrmPrimeHandleToFD(mDRMFd, aGEMHandle, 0, &fd) < 0 ? -1 : fd;
|
|
}
|
|
|
|
gbm_device* DMABufDevice::GetGbmDevice() {
|
|
std::call_once(mFlagGbmDevice, [&] {
|
|
mGbmDevice = (mDRMFd != -1) ? GbmLib::CreateDevice(mDRMFd) : nullptr;
|
|
});
|
|
return mGbmDevice;
|
|
}
|
|
|
|
int DMABufDevice::OpenDRMFd() { return open(mDrmRenderNode.get(), O_RDWR); }
|
|
|
|
bool DMABufDevice::IsEnabled(nsACString& aFailureId) {
|
|
if (mDRMFd == -1) {
|
|
aFailureId = mFailureId;
|
|
}
|
|
return mDRMFd != -1;
|
|
}
|
|
|
|
DMABufDevice::DMABufDevice()
|
|
: mXRGBFormat({true, false, GBM_FORMAT_XRGB8888, {}}),
|
|
mARGBFormat({true, true, GBM_FORMAT_ARGB8888, {}}) {
|
|
Configure();
|
|
}
|
|
|
|
DMABufDevice::~DMABufDevice() {
|
|
if (mGbmDevice) {
|
|
GbmLib::DestroyDevice(mGbmDevice);
|
|
mGbmDevice = nullptr;
|
|
}
|
|
if (mDRMFd != -1) {
|
|
close(mDRMFd);
|
|
mDRMFd = -1;
|
|
}
|
|
}
|
|
|
|
void DMABufDevice::Configure() {
|
|
LOGDMABUF(("DMABufDevice::Configure()"));
|
|
|
|
if (!GbmLib::IsAvailable()) {
|
|
LOGDMABUF(("GbmLib is not available!"));
|
|
mFailureId = "FEATURE_FAILURE_NO_LIBGBM";
|
|
return;
|
|
}
|
|
|
|
mDrmRenderNode = nsAutoCString(getenv("MOZ_DRM_DEVICE"));
|
|
if (mDrmRenderNode.IsEmpty()) {
|
|
mDrmRenderNode.Assign(gfx::gfxVars::DrmRenderDevice());
|
|
}
|
|
if (mDrmRenderNode.IsEmpty()) {
|
|
LOGDMABUF(("We're missing DRM render device!\n"));
|
|
mFailureId = "FEATURE_FAILURE_NO_DRM_DEVICE";
|
|
return;
|
|
}
|
|
|
|
LOGDMABUF(("Using DRM device %s", mDrmRenderNode.get()));
|
|
mDRMFd = open(mDrmRenderNode.get(), O_RDWR);
|
|
if (mDRMFd < 0) {
|
|
LOGDMABUF(("Failed to open drm render node %s error %s\n",
|
|
mDrmRenderNode.get(), strerror(errno)));
|
|
mFailureId = "FEATURE_FAILURE_NO_DRM_DEVICE";
|
|
return;
|
|
}
|
|
|
|
#ifdef MOZ_WAYLAND
|
|
LoadFormatModifiers();
|
|
#endif
|
|
|
|
LOGDMABUF(("DMABuf is enabled"));
|
|
}
|
|
|
|
#ifdef NIGHTLY_BUILD
|
|
bool DMABufDevice::IsDMABufTexturesEnabled() {
|
|
return gfx::gfxVars::UseDMABuf() &&
|
|
StaticPrefs::widget_dmabuf_textures_enabled();
|
|
}
|
|
#else
|
|
bool DMABufDevice::IsDMABufTexturesEnabled() { return false; }
|
|
#endif
|
|
bool DMABufDevice::IsDMABufWebGLEnabled() {
|
|
LOGDMABUF(
|
|
("DMABufDevice::IsDMABufWebGLEnabled: UseDMABuf %d "
|
|
"sUseWebGLDmabufBackend %d "
|
|
"widget_dmabuf_webgl_enabled %d\n",
|
|
gfx::gfxVars::UseDMABuf(), sUseWebGLDmabufBackend,
|
|
StaticPrefs::widget_dmabuf_webgl_enabled()));
|
|
return gfx::gfxVars::UseDMABuf() && sUseWebGLDmabufBackend &&
|
|
StaticPrefs::widget_dmabuf_webgl_enabled();
|
|
}
|
|
|
|
#ifdef MOZ_WAYLAND
|
|
void DMABufDevice::SetModifiersToGfxVars() {
|
|
gfxVars::SetDMABufModifiersXRGB(mXRGBFormat.mModifiers);
|
|
gfxVars::SetDMABufModifiersARGB(mARGBFormat.mModifiers);
|
|
}
|
|
|
|
void DMABufDevice::GetModifiersFromGfxVars() {
|
|
mXRGBFormat.mModifiers = gfxVars::DMABufModifiersXRGB().Clone();
|
|
mARGBFormat.mModifiers = gfxVars::DMABufModifiersARGB().Clone();
|
|
}
|
|
#endif
|
|
|
|
void DMABufDevice::DisableDMABufWebGL() { sUseWebGLDmabufBackend = false; }
|
|
|
|
GbmFormat* DMABufDevice::GetGbmFormat(bool aHasAlpha) {
|
|
GbmFormat* format = aHasAlpha ? &mARGBFormat : &mXRGBFormat;
|
|
return format->mIsSupported ? format : nullptr;
|
|
}
|
|
|
|
#ifdef MOZ_WAYLAND
|
|
void DMABufDevice::AddFormatModifier(bool aHasAlpha, int aFormat,
|
|
uint32_t mModifierHi,
|
|
uint32_t mModifierLo) {
|
|
GbmFormat* format = aHasAlpha ? &mARGBFormat : &mXRGBFormat;
|
|
format->mIsSupported = true;
|
|
format->mHasAlpha = aHasAlpha;
|
|
format->mFormat = aFormat;
|
|
format->mModifiers.AppendElement(((uint64_t)mModifierHi << 32) | mModifierLo);
|
|
}
|
|
|
|
static void dmabuf_modifiers(void* data,
|
|
struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf,
|
|
uint32_t format, uint32_t modifier_hi,
|
|
uint32_t modifier_lo) {
|
|
// skip modifiers marked as invalid
|
|
if (modifier_hi == (DRM_FORMAT_MOD_INVALID >> 32) &&
|
|
modifier_lo == (DRM_FORMAT_MOD_INVALID & 0xffffffff)) {
|
|
return;
|
|
}
|
|
|
|
auto* device = static_cast<DMABufDevice*>(data);
|
|
switch (format) {
|
|
case GBM_FORMAT_ARGB8888:
|
|
device->AddFormatModifier(true, format, modifier_hi, modifier_lo);
|
|
break;
|
|
case GBM_FORMAT_XRGB8888:
|
|
device->AddFormatModifier(false, format, modifier_hi, modifier_lo);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void dmabuf_format(void* data,
|
|
struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf,
|
|
uint32_t format) {
|
|
// XXX: deprecated
|
|
}
|
|
|
|
static const struct zwp_linux_dmabuf_v1_listener dmabuf_listener = {
|
|
dmabuf_format, dmabuf_modifiers};
|
|
|
|
static void global_registry_handler(void* data, wl_registry* registry,
|
|
uint32_t id, const char* interface,
|
|
uint32_t version) {
|
|
if (strcmp(interface, "zwp_linux_dmabuf_v1") == 0 && version > 2) {
|
|
auto* dmabuf = WaylandRegistryBind<zwp_linux_dmabuf_v1>(
|
|
registry, id, &zwp_linux_dmabuf_v1_interface, 3);
|
|
LOGDMABUF(("zwp_linux_dmabuf_v1 is available."));
|
|
zwp_linux_dmabuf_v1_add_listener(dmabuf, &dmabuf_listener, data);
|
|
} else if (strcmp(interface, "wl_drm") == 0) {
|
|
LOGDMABUF(("wl_drm is available."));
|
|
}
|
|
}
|
|
|
|
static void global_registry_remover(void* data, wl_registry* registry,
|
|
uint32_t id) {}
|
|
|
|
static const struct wl_registry_listener registry_listener = {
|
|
global_registry_handler, global_registry_remover};
|
|
|
|
void DMABufDevice::LoadFormatModifiers() {
|
|
if (!GdkIsWaylandDisplay()) {
|
|
return;
|
|
}
|
|
if (XRE_IsParentProcess()) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
wl_display* display = WaylandDisplayGetWLDisplay();
|
|
wl_registry* registry = wl_display_get_registry(display);
|
|
wl_registry_add_listener(registry, ®istry_listener, this);
|
|
wl_display_roundtrip(display);
|
|
wl_display_roundtrip(display);
|
|
wl_registry_destroy(registry);
|
|
SetModifiersToGfxVars();
|
|
} else {
|
|
GetModifiersFromGfxVars();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
DMABufDevice* GetDMABufDevice() {
|
|
static StaticAutoPtr<DMABufDevice> sDmaBufDevice;
|
|
static std::once_flag onceFlag;
|
|
std::call_once(onceFlag, [] {
|
|
sDmaBufDevice = new DMABufDevice();
|
|
if (NS_IsMainThread()) {
|
|
ClearOnShutdown(&sDmaBufDevice);
|
|
} else {
|
|
NS_DispatchToMainThread(NS_NewRunnableFunction(
|
|
"ClearDmaBufDevice", [] { ClearOnShutdown(&sDmaBufDevice); }));
|
|
}
|
|
});
|
|
return sDmaBufDevice.get();
|
|
}
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|