Frame create_frame(size_t width, size_t height, size_t stride) override;
void release_frame(Frame frame) override;
+ // NOTE: Does not check the buffer types; they are just assumed to be compatible.
+ void reconfigure(bmusb::PixelFormat pixel_format,
+ size_t frame_size,
+ GLuint width, GLuint height,
+ unsigned card_index,
+ MJPEGEncoder *mjpeg_encoder = nullptr,
+ size_t num_queued_frames = 16,
+ GLenum buffer = GL_PIXEL_UNPACK_BUFFER_ARB,
+ GLenum permissions = GL_MAP_WRITE_BIT,
+ GLenum map_bits = GL_MAP_FLUSH_EXPLICIT_BIT);
+
struct Userdata {
GLuint pbo;
// from there into VA-API buffers (by MJPEGEncoder) if needed.
enum { FROM_MALLOC, FROM_VA_API } data_copy_current_src;
uint8_t *data_copy_malloc;
- MJPEGEncoder::VAResources va_resources;
- MJPEGEncoder::ReleaseVAResources va_resources_release;
+ VAResourcePool::VAResources va_resources;
+ ReleaseVAResources va_resources_release;
+
+ int generation;
};
private:
- void init_frame(size_t frame_idx, size_t frame_size, GLuint width, GLuint height, GLenum permissions, GLenum map_bits);
+ void init_frame(size_t frame_idx, size_t frame_size, GLuint width, GLuint height, GLenum permissions, GLenum map_bits, int generation);
void destroy_frame(Frame *frame);
unsigned card_index;
std::queue<Frame> freelist;
GLenum buffer;
std::unique_ptr<Userdata[]> userdata;
+
+ // Used only for reconfigure(), to check whether we can do without.
+ size_t frame_size;
+ size_t num_queued_frames;
+ GLuint width, height;
+ GLenum permissions;
+ GLenum map_bits;
+ int generation = 0; // Under freelist_mutex.
+
+ struct LingeringGeneration {
+ std::unique_ptr<Userdata[]> userdata;
+ size_t num_frames_left;
+ };
+ std::map<int, LingeringGeneration> lingering_generations;
};
#endif // !defined(_PBO_FRAME_ALLOCATOR)