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[cscore] Add support for USB cameras on macOS (#4846)

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The main restriction is there must be an event loop running on the main thread.
No special action is required for GUI applications, but for non-GUI applications, a
RunOsxRunLoop() function is provided that needs to be called from the main thread.
This commit is contained in:
Thad House
2022-12-25 07:36:00 -08:00
committed by GitHub
parent 1696a490fa
commit b893b3d6d3
26 changed files with 1379 additions and 96 deletions
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48
cscore/src/main/native/osx/UsbCameraImpl.cpp
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@@ -1,48 +0,0 @@
// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#include "Instance.h"
#include "cscore_cpp.h"
namespace cs {
CS_Source CreateUsbCameraDev(std::string_view name, int dev,
CS_Status* status) {
*status = CS_INVALID_HANDLE;
WPI_ERROR(Instance::GetInstance().logger,
"USB Camera support not implemented for macOS");
return 0;
}
CS_Source CreateUsbCameraPath(std::string_view name, std::string_view path,
CS_Status* status) {
*status = CS_INVALID_HANDLE;
WPI_ERROR(Instance::GetInstance().logger,
"USB Camera support not implemented for macOS");
return 0;
}
void SetUsbCameraPath(CS_Source source, std::string_view path,
CS_Status* status) {
*status = CS_INVALID_HANDLE;
}
std::string GetUsbCameraPath(CS_Source source, CS_Status* status) {
*status = CS_INVALID_HANDLE;
return std::string{};
}
UsbCameraInfo GetUsbCameraInfo(CS_Source source, CS_Status* status) {
*status = CS_INVALID_HANDLE;
return UsbCameraInfo{};
}
std::vector<UsbCameraInfo> EnumerateUsbCameras(CS_Status* status) {
*status = CS_INVALID_HANDLE;
WPI_ERROR(Instance::GetInstance().logger,
"USB Camera support not implemented for macOS");
return std::vector<UsbCameraInfo>{};
}
} // namespace cs

17
cscore/src/main/native/osx/UsbCameraListener.cpp
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@@ -1,17 +0,0 @@
// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#include "UsbCameraListener.h"
using namespace cs;
class UsbCameraListener::Impl {};
UsbCameraListener::UsbCameraListener(wpi::Logger& logger, Notifier& notifier) {}
UsbCameraListener::~UsbCameraListener() = default;
void UsbCameraListener::Start() {}
void UsbCameraListener::Stop() {}