| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "surface.h" |
| |
| #include <fcntl.h> |
| #include <lib/fdio/watcher.h> |
| #include <unistd.h> |
| #include <zircon/device/vfs.h> |
| |
| #include "flutter/fml/unique_fd.h" |
| |
| namespace flutter_runner { |
| |
| Surface::Surface(std::string debug_label) |
| : debug_label_(std::move(debug_label)) {} |
| |
| Surface::~Surface() = default; |
| |
| // |flutter::Surface| |
| bool Surface::IsValid() { return valid_; } |
| |
| // |flutter::Surface| |
| std::unique_ptr<flutter::SurfaceFrame> Surface::AcquireFrame( |
| const SkISize& size) { |
| return std::make_unique<flutter::SurfaceFrame>( |
| nullptr, [](const flutter::SurfaceFrame& surface_frame, SkCanvas* canvas) { |
| return true; |
| }); |
| } |
| |
| // |flutter::Surface| |
| GrContext* Surface::GetContext() { return nullptr; } |
| |
| static zx_status_t DriverWatcher(int dirfd, int event, const char* fn, |
| void* cookie) { |
| if (event == WATCH_EVENT_ADD_FILE && !strcmp(fn, "000")) { |
| return ZX_ERR_STOP; |
| } |
| return ZX_OK; |
| } |
| |
| bool Surface::CanConnectToDisplay() { |
| constexpr char kGpuDriverClass[] = "/dev/class/gpu"; |
| fml::UniqueFD fd(open(kGpuDriverClass, O_DIRECTORY | O_RDONLY)); |
| if (fd.get() < 0) { |
| FML_DLOG(ERROR) << "Failed to open " << kGpuDriverClass; |
| return false; |
| } |
| |
| zx_status_t status = fdio_watch_directory( |
| fd.get(), DriverWatcher, zx_deadline_after(ZX_SEC(5)), nullptr); |
| return status == ZX_ERR_STOP; |
| } |
| |
| // |flutter::Surface| |
| SkMatrix Surface::GetRootTransformation() const { |
| // This backend does not support delegating to the underlying platform to |
| // query for root surface transformations. Just return identity. |
| SkMatrix matrix; |
| matrix.reset(); |
| return matrix; |
| } |
| |
| } // namespace flutter_runner |