bstream.h (1568B)
1 /* 2 * travesty, pure C VST3-compatible interface 3 * Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com> 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any purpose with 6 * or without fee is hereby granted, provided that the above copyright notice and this 7 * permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD 10 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN 11 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 12 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #pragma once 18 19 #include "base.h" 20 21 enum v3_seek_mode { 22 V3_SEEK_SET = 0, 23 V3_SEEK_CUR, 24 V3_SEEK_END 25 }; 26 27 struct v3_bstream { 28 #ifndef __cplusplus 29 struct v3_funknown; 30 #endif 31 v3_result (V3_API *read)(void* self, void* buffer, int32_t num_bytes, int32_t* bytes_read); 32 v3_result (V3_API *write)(void* self, void* buffer, int32_t num_bytes, int32_t* bytes_written); 33 v3_result (V3_API *seek)(void* self, int64_t pos, int32_t seek_mode, int64_t* result); 34 v3_result (V3_API *tell)(void* self, int64_t* pos); 35 }; 36 37 static constexpr const v3_tuid v3_bstream_iid = 38 V3_ID(0xC3BF6EA2, 0x30994752, 0x9B6BF990, 0x1EE33E9B); 39 40 #ifdef __cplusplus 41 42 /** 43 * C++ variants 44 */ 45 46 struct v3_bstream_cpp : v3_funknown { 47 v3_bstream stream; 48 }; 49 50 #endif