cuda.cpp File Reference

Definitions for CUDA encoding. More...

#include <bitset>
#include <fcntl.h>
#include <filesystem>
#include <thread>
#include <ffnvcodec/dynlink_loader.h>
#include <NvFBC.h>
#include <libavcodec/avcodec.h>
#include <libavutil/hwcontext_cuda.h>
#include <libavutil/imgutils.h>
#include "cuda.h"
#include "graphics.h"
#include "src/logging.h"
#include "src/utility.h"
#include "src/video.h"
#include "wayland.h"

Include dependency graph for cuda.cpp:

Classes
class	cuda::nvfbc::ctx_t
class	cuda::cuda_ram_t
class	cuda::cuda_t
class	cuda::cuda_vram_t
class	cuda::nvfbc::display_t
class	cuda::gl_cuda_vram_t
class	cuda::nvfbc::handle_t
class	cuda::img_t

Macros
#define	CU_CHECK(x, y)
#define	CU_CHECK_IGNORE(x, y)
#define	SUNSHINE_STRINGVIEW(x)
#define	SUNSHINE_STRINGVIEW_HELPER(x)

Typedefs
using	cuda::cdf_t = util::safe_ptr<CudaFunctions, cff>
using	cuda::registered_resource_t = util::safe_ptr<CUgraphicsResource_st, unregisterResource>

Functions
void	cuda::cff (CudaFunctions *cf)
void	cuda::freeStream (CUstream stream)
int	cuda::init ()
int	cuda::nvfbc::init ()
std::unique_ptr< platf::avcodec_encode_device_t >	cuda::make_avcodec_encode_device (int width, int height, bool vram)
std::unique_ptr< platf::avcodec_encode_device_t >	cuda::make_avcodec_gl_encode_device (int width, int height, int offset_x, int offset_y)
	Create a GL->CUDA encoding device for consuming captured dmabufs.
std::shared_ptr< display_t >	platf::nvfbc_display (mem_type_e hwdevice_type, const std::string &display_name, const video::config_t &config)
std::vector< std::string >	platf::nvfbc_display_names ()
file_t	cuda::open_drm_fd_for_cuda_device (int index)
	Opens the DRM device associated with the CUDA device index.
void	cuda::pass_error (const std::string_view &sv, const char *name, const char *description)
void	cuda::unregisterResource (CUgraphicsResource resource)

Variables
constexpr auto	cuda::cudaDevAttrMaxThreadsPerBlock = (CUdevice_attribute) 1
constexpr auto	cuda::cudaDevAttrMaxThreadsPerMultiProcessor = (CUdevice_attribute) 39

Detailed Description

Definitions for CUDA encoding.

Macro Definition Documentation

CU_CHECK

#define CU_CHECK	(		x,
			y )

Value:

  if (check((x), SUNSHINE_STRINGVIEW(y ": "))) \
  return -1

CU_CHECK_IGNORE

#define CU_CHECK_IGNORE	(		x,
			y )

Value:

  check((x), SUNSHINE_STRINGVIEW(y ": "))

SUNSHINE_STRINGVIEW

#define SUNSHINE_STRINGVIEW

(

x

)

Value:

SUNSHINE_STRINGVIEW_HELPER(x)

SUNSHINE_STRINGVIEW_HELPER

#define SUNSHINE_STRINGVIEW_HELPER

(

x

)

Value:

x##sv

Function Documentation

make_avcodec_gl_encode_device()

std::unique_ptr< platf::avcodec_encode_device_t > cuda::make_avcodec_gl_encode_device	(	int	width,
		int	height,
		int	offset_x,
		int	offset_y )

Create a GL->CUDA encoding device for consuming captured dmabufs.

Parameters

width	Width of captured frames.
height	Height of captured frames.
offset_x	Offset of content in captured frame.
offset_y	Offset of content in captured frame.

Returns

FFmpeg encoding device context.

open_drm_fd_for_cuda_device()

file_t cuda::open_drm_fd_for_cuda_device

(

int

index

)

Opens the DRM device associated with the CUDA device index.

Parameters

index

CUDA device index to open.

Returns

File descriptor or -1 on failure.