forked from mirrors/gecko-dev
447c0b7acc
We don't need IsDMABufVAAPIEnabled() as we use gfx::gfxVars::CanUseHardwareVideoDecoding() directly. Differential Revision: https://phabricator.services.mozilla.com/D149764
331 lines
11 KiB
C++
331 lines
11 KiB
C++
/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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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 "base/message_loop.h" // for MessageLoop
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#include "nsWaylandDisplay.h"
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#include "DMABufLibWrapper.h"
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#include "mozilla/StaticPrefs_widget.h"
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#include "mozilla/StaticPrefs_media.h"
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#include "mozilla/gfx/gfxVars.h"
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#include "WidgetUtilsGtk.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dlfcn.h>
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namespace mozilla {
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namespace widget {
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#define GBMLIB_NAME "libgbm.so.1"
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#define DRMLIB_NAME "libdrm.so.2"
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// Use static lock to protect dri operation as
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// gbm_dri.c is not thread safe.
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// https://gitlab.freedesktop.org/mesa/mesa/-/issues/4422
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mozilla::StaticMutex nsGbmLib::sDRILock MOZ_UNANNOTATED;
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bool nsGbmLib::sLoaded = false;
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void* nsGbmLib::sGbmLibHandle = nullptr;
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void* nsGbmLib::sXf86DrmLibHandle = nullptr;
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CreateDeviceFunc nsGbmLib::sCreateDevice;
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DestroyDeviceFunc nsGbmLib::sDestroyDevice;
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CreateFunc nsGbmLib::sCreate;
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CreateWithModifiersFunc nsGbmLib::sCreateWithModifiers;
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GetModifierFunc nsGbmLib::sGetModifier;
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GetStrideFunc nsGbmLib::sGetStride;
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GetFdFunc nsGbmLib::sGetFd;
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DestroyFunc nsGbmLib::sDestroy;
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MapFunc nsGbmLib::sMap;
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UnmapFunc nsGbmLib::sUnmap;
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GetPlaneCountFunc nsGbmLib::sGetPlaneCount;
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GetHandleForPlaneFunc nsGbmLib::sGetHandleForPlane;
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GetStrideForPlaneFunc nsGbmLib::sGetStrideForPlane;
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GetOffsetFunc nsGbmLib::sGetOffset;
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DeviceIsFormatSupportedFunc nsGbmLib::sDeviceIsFormatSupported;
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DrmPrimeHandleToFDFunc nsGbmLib::sDrmPrimeHandleToFD;
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CreateSurfaceFunc nsGbmLib::sCreateSurface;
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DestroySurfaceFunc nsGbmLib::sDestroySurface;
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bool nsGbmLib::IsLoaded() {
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return sCreateDevice != nullptr && sDestroyDevice != nullptr &&
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sCreate != nullptr && sCreateWithModifiers != nullptr &&
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sGetModifier != nullptr && sGetStride != nullptr &&
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sGetFd != nullptr && sDestroy != nullptr && sMap != nullptr &&
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sUnmap != nullptr && sGetPlaneCount != nullptr &&
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sGetHandleForPlane != nullptr && sGetStrideForPlane != nullptr &&
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sGetOffset != nullptr && sDeviceIsFormatSupported != nullptr &&
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sDrmPrimeHandleToFD != nullptr && sCreateSurface != nullptr &&
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sDestroySurface != nullptr;
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}
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bool nsGbmLib::Load() {
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static bool sTriedToLoad = false;
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if (sTriedToLoad) {
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return sLoaded;
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}
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sTriedToLoad = true;
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MOZ_ASSERT(!sGbmLibHandle);
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MOZ_ASSERT(!sLoaded);
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LOGDMABUF(("Loading DMABuf system library %s ...\n", GBMLIB_NAME));
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sGbmLibHandle = dlopen(GBMLIB_NAME, RTLD_LAZY | RTLD_LOCAL);
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if (!sGbmLibHandle) {
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LOGDMABUF(("Failed to load %s, dmabuf isn't available.\n", GBMLIB_NAME));
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return false;
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}
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sCreateDevice = (CreateDeviceFunc)dlsym(sGbmLibHandle, "gbm_create_device");
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sDestroyDevice =
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(DestroyDeviceFunc)dlsym(sGbmLibHandle, "gbm_device_destroy");
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sCreate = (CreateFunc)dlsym(sGbmLibHandle, "gbm_bo_create");
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sCreateWithModifiers = (CreateWithModifiersFunc)dlsym(
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sGbmLibHandle, "gbm_bo_create_with_modifiers");
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sGetModifier = (GetModifierFunc)dlsym(sGbmLibHandle, "gbm_bo_get_modifier");
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sGetStride = (GetStrideFunc)dlsym(sGbmLibHandle, "gbm_bo_get_stride");
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sGetFd = (GetFdFunc)dlsym(sGbmLibHandle, "gbm_bo_get_fd");
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sDestroy = (DestroyFunc)dlsym(sGbmLibHandle, "gbm_bo_destroy");
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sMap = (MapFunc)dlsym(sGbmLibHandle, "gbm_bo_map");
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sUnmap = (UnmapFunc)dlsym(sGbmLibHandle, "gbm_bo_unmap");
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sGetPlaneCount =
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(GetPlaneCountFunc)dlsym(sGbmLibHandle, "gbm_bo_get_plane_count");
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sGetHandleForPlane = (GetHandleForPlaneFunc)dlsym(
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sGbmLibHandle, "gbm_bo_get_handle_for_plane");
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sGetStrideForPlane = (GetStrideForPlaneFunc)dlsym(
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sGbmLibHandle, "gbm_bo_get_stride_for_plane");
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sGetOffset = (GetOffsetFunc)dlsym(sGbmLibHandle, "gbm_bo_get_offset");
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sDeviceIsFormatSupported = (DeviceIsFormatSupportedFunc)dlsym(
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sGbmLibHandle, "gbm_device_is_format_supported");
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sCreateSurface =
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(CreateSurfaceFunc)dlsym(sGbmLibHandle, "gbm_surface_create");
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sDestroySurface =
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(DestroySurfaceFunc)dlsym(sGbmLibHandle, "gbm_surface_destroy");
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sXf86DrmLibHandle = dlopen(DRMLIB_NAME, RTLD_LAZY | RTLD_LOCAL);
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if (!sXf86DrmLibHandle) {
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LOGDMABUF(("Failed to load %s, dmabuf isn't available.\n", DRMLIB_NAME));
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return false;
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}
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sDrmPrimeHandleToFD =
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(DrmPrimeHandleToFDFunc)dlsym(sXf86DrmLibHandle, "drmPrimeHandleToFD");
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sLoaded = IsLoaded();
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if (!sLoaded) {
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LOGDMABUF(("Failed to load all symbols from %s\n", GBMLIB_NAME));
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}
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return sLoaded;
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}
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gbm_device* nsDMABufDevice::GetGbmDevice() { return mGbmDevice; }
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static void dmabuf_modifiers(void* data,
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struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf,
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uint32_t format, uint32_t modifier_hi,
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uint32_t modifier_lo) {
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// skip modifiers marked as invalid
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if (modifier_hi == (DRM_FORMAT_MOD_INVALID >> 32) &&
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modifier_lo == (DRM_FORMAT_MOD_INVALID & 0xffffffff)) {
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return;
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}
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auto* device = static_cast<nsDMABufDevice*>(data);
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switch (format) {
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case GBM_FORMAT_ARGB8888:
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device->AddFormatModifier(true, format, modifier_hi, modifier_lo);
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break;
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case GBM_FORMAT_XRGB8888:
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device->AddFormatModifier(false, format, modifier_hi, modifier_lo);
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break;
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default:
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break;
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}
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}
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static void dmabuf_format(void* data,
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struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf,
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uint32_t format) {
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// XXX: deprecated
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}
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static const struct zwp_linux_dmabuf_v1_listener dmabuf_listener = {
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dmabuf_format, dmabuf_modifiers};
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static void global_registry_handler(void* data, wl_registry* registry,
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uint32_t id, const char* interface,
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uint32_t version) {
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auto* device = static_cast<nsDMABufDevice*>(data);
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if (strcmp(interface, "zwp_linux_dmabuf_v1") == 0 && version > 2) {
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auto* dmabuf = WaylandRegistryBind<zwp_linux_dmabuf_v1>(
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registry, id, &zwp_linux_dmabuf_v1_interface, 3);
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LOGDMABUF(("zwp_linux_dmabuf_v1 is available."));
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device->ResetFormatsModifiers();
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zwp_linux_dmabuf_v1_add_listener(dmabuf, &dmabuf_listener, data);
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} else if (strcmp(interface, "wl_drm") == 0) {
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LOGDMABUF(("wl_drm is available."));
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}
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}
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static void global_registry_remover(void* data, wl_registry* registry,
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uint32_t id) {}
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static const struct wl_registry_listener registry_listener = {
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global_registry_handler, global_registry_remover};
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nsDMABufDevice::nsDMABufDevice()
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: mUseWebGLDmabufBackend(true),
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mXRGBFormat({true, false, GBM_FORMAT_XRGB8888, nullptr, 0}),
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mARGBFormat({true, true, GBM_FORMAT_ARGB8888, nullptr, 0}),
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mDRMFd(-1),
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mGbmDevice(nullptr),
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mInitialized(false) {
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if (GdkIsWaylandDisplay()) {
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wl_display* display = WaylandDisplayGetWLDisplay();
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wl_registry* registry = wl_display_get_registry(display);
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wl_registry_add_listener(registry, ®istry_listener, this);
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wl_display_roundtrip(display);
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wl_display_roundtrip(display);
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wl_registry_destroy(registry);
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}
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nsAutoCString drm_render_node(getenv("MOZ_DRM_DEVICE"));
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if (drm_render_node.IsEmpty()) {
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drm_render_node.Assign(gfx::gfxVars::DrmRenderDevice());
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}
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if (!drm_render_node.IsEmpty()) {
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LOGDMABUF(("Using DRM device %s", drm_render_node.get()));
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mDRMFd = open(drm_render_node.get(), O_RDWR);
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if (mDRMFd < 0) {
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LOGDMABUF(("Failed to open drm render node %s error %s\n",
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drm_render_node.get(), strerror(errno)));
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}
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} else {
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LOGDMABUF(("We're missing DRM render device!\n"));
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}
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}
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nsDMABufDevice::~nsDMABufDevice() {
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if (mGbmDevice) {
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nsGbmLib::DestroyDevice(mGbmDevice);
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mGbmDevice = nullptr;
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}
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if (mDRMFd != -1) {
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close(mDRMFd);
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mDRMFd = -1;
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}
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}
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int nsDMABufDevice::GetDRMFd() { return mDRMFd; }
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bool nsDMABufDevice::Configure(nsACString& aFailureId) {
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LOGDMABUF(("nsDMABufDevice::Configure()"));
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MOZ_ASSERT(!mInitialized);
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mInitialized = true;
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bool isDMABufUsed = (
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#ifdef NIGHTLY_BUILD
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StaticPrefs::widget_dmabuf_textures_enabled() ||
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#endif
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StaticPrefs::widget_dmabuf_webgl_enabled());
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if (!isDMABufUsed) {
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// Disabled by user, just quit.
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LOGDMABUF(("IsDMABufEnabled(): Disabled by preferences."));
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aFailureId = "FEATURE_FAILURE_NO_PREFS_ENABLED";
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return false;
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}
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if (!nsGbmLib::IsAvailable()) {
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LOGDMABUF(("nsGbmLib is not available!"));
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aFailureId = "FEATURE_FAILURE_NO_LIBGBM";
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return false;
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}
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// fd passed to gbm_create_device() should be kept open until
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// gbm_device_destroy() is called.
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mGbmDevice = nsGbmLib::CreateDevice(GetDRMFd());
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if (!mGbmDevice) {
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LOGDMABUF(("Failed to create drm render device"));
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aFailureId = "FEATURE_FAILURE_BAD_DRM_RENDER_NODE";
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return false;
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}
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LOGDMABUF(("DMABuf is enabled"));
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return true;
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}
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#ifdef NIGHTLY_BUILD
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bool nsDMABufDevice::IsDMABufTexturesEnabled() {
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return gfx::gfxVars::UseDMABuf() &&
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StaticPrefs::widget_dmabuf_textures_enabled();
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}
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#else
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bool nsDMABufDevice::IsDMABufTexturesEnabled() { return false; }
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#endif
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bool nsDMABufDevice::IsDMABufWebGLEnabled() {
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LOGDMABUF(
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("nsDMABufDevice::IsDMABufWebGLEnabled: UseDMABuf %d "
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"mUseWebGLDmabufBackend %d "
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"widget_dmabuf_webgl_enabled %d\n",
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gfx::gfxVars::UseDMABuf(), mUseWebGLDmabufBackend,
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StaticPrefs::widget_dmabuf_webgl_enabled()));
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return gfx::gfxVars::UseDMABuf() && mUseWebGLDmabufBackend &&
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StaticPrefs::widget_dmabuf_webgl_enabled();
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}
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void nsDMABufDevice::DisableDMABufWebGL() { mUseWebGLDmabufBackend = false; }
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GbmFormat* nsDMABufDevice::GetGbmFormat(bool aHasAlpha) {
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GbmFormat* format = aHasAlpha ? &mARGBFormat : &mXRGBFormat;
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return format->mIsSupported ? format : nullptr;
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}
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GbmFormat* nsDMABufDevice::GetExactGbmFormat(int aFormat) {
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if (aFormat == mARGBFormat.mFormat) {
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return &mARGBFormat;
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} else if (aFormat == mXRGBFormat.mFormat) {
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return &mXRGBFormat;
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}
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return nullptr;
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}
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void nsDMABufDevice::AddFormatModifier(bool aHasAlpha, int aFormat,
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uint32_t mModifierHi,
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uint32_t mModifierLo) {
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GbmFormat* format = aHasAlpha ? &mARGBFormat : &mXRGBFormat;
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format->mIsSupported = true;
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format->mHasAlpha = aHasAlpha;
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format->mFormat = aFormat;
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format->mModifiersCount++;
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format->mModifiers =
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(uint64_t*)realloc(format->mModifiers,
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format->mModifiersCount * sizeof(*format->mModifiers));
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format->mModifiers[format->mModifiersCount - 1] =
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((uint64_t)mModifierHi << 32) | mModifierLo;
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}
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void nsDMABufDevice::ResetFormatsModifiers() {
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mARGBFormat.mModifiersCount = 0;
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free(mARGBFormat.mModifiers);
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mARGBFormat.mModifiers = nullptr;
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mXRGBFormat.mModifiersCount = 0;
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free(mXRGBFormat.mModifiers);
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mXRGBFormat.mModifiers = nullptr;
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}
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nsDMABufDevice* GetDMABufDevice() {
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static nsDMABufDevice dmaBufDevice;
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return &dmaBufDevice;
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}
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} // namespace widget
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} // namespace mozilla
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