Sunshine/sunshine/platform/linux/cuda.h
2021-10-01 11:30:12 +02:00

107 lines
2.6 KiB
C++

#if !defined(SUNSHINE_PLATFORM_CUDA_H) && defined(SUNSHINE_BUILD_CUDA)
#define SUNSHINE_PLATFORM_CUDA_H
#include <memory>
#include <optional>
#include <string>
#include <vector>
namespace platf {
class hwdevice_t;
class img_t;
} // namespace platf
namespace cuda {
namespace nvfbc {
std::vector<std::string> display_names();
}
std::shared_ptr<platf::hwdevice_t> make_hwdevice(int width, int height, bool vram);
int init();
} // namespace cuda
typedef struct cudaArray *cudaArray_t;
#if !defined(__CUDACC__)
typedef struct CUstream_st *cudaStream_t;
typedef unsigned long long cudaTextureObject_t;
#else /* defined(__CUDACC__) */
typedef __location__(device_builtin) struct CUstream_st *cudaStream_t;
typedef __location__(device_builtin) unsigned long long cudaTextureObject_t;
#endif /* !defined(__CUDACC__) */
namespace cuda {
class freeCudaPtr_t {
public:
void operator()(void *ptr);
};
class freeCudaStream_t {
public:
void operator()(cudaStream_t ptr);
};
using ptr_t = std::unique_ptr<void, freeCudaPtr_t>;
using stream_t = std::unique_ptr<CUstream_st, freeCudaStream_t>;
stream_t make_stream(int flags = 0);
struct viewport_t {
int width, height;
int offsetX, offsetY;
};
class tex_t {
public:
static std::optional<tex_t> make(int height, int pitch);
tex_t();
tex_t(tex_t &&);
tex_t &operator=(tex_t &&other);
~tex_t();
int copy(std::uint8_t *src, int height, int pitch);
cudaArray_t array;
struct texture {
cudaTextureObject_t point;
cudaTextureObject_t linear;
} texture;
};
class sws_t {
public:
sws_t() = default;
sws_t(int in_width, int in_height, int out_width, int out_height, int pitch, int threadsPerBlock, ptr_t &&color_matrix);
/**
* in_width, in_height -- The width and height of the captured image in pixels
* out_width, out_height -- the width and height of the NV12 image in pixels
*
* pitch -- The size of a single row of pixels in bytes
*/
static std::optional<sws_t> make(int in_width, int in_height, int out_width, int out_height, int pitch);
// Converts loaded image into a CUDevicePtr
int convert(std::uint8_t *Y, std::uint8_t *UV, std::uint32_t pitchY, std::uint32_t pitchUV, cudaTextureObject_t texture, stream_t::pointer stream);
int convert(std::uint8_t *Y, std::uint8_t *UV, std::uint32_t pitchY, std::uint32_t pitchUV, cudaTextureObject_t texture, stream_t::pointer stream, const viewport_t &viewport);
void set_colorspace(std::uint32_t colorspace, std::uint32_t color_range);
int load_ram(platf::img_t &img, cudaArray_t array);
ptr_t color_matrix;
int threadsPerBlock;
viewport_t viewport;
float scale;
};
} // namespace cuda
#endif