source/modules/ysfx/sources/ysfx_eel_utils.hpp

   1 // Copyright 2021 Jean Pierre Cimalando
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14 //
  15 // SPDX-License-Identifier: Apache-2.0
  16 //
  17
  18 #pragma once
  19 #include "WDL/eel2/ns-eel.h"
  20 #include "WDL/eel2/ns-eel-int.h"
  21 #include <type_traits>
  22 #include <cstdint>
  23
  24 template <class T>
  25 inline typename std::enable_if<std::is_integral<T>::value, T>::type
  26 ysfx_eel_round(EEL_F value)
  27 {
  28     return (T)(value + (EEL_F)0.0001); // same one as used in eel2 everywhere
  29 }
  30
  31 //------------------------------------------------------------------------------
  32 class ysfx_eel_ram_reader {
  33 public:
  34     ysfx_eel_ram_reader() = default;
  35     ysfx_eel_ram_reader(NSEEL_VMCTX vm, int64_t addr);
  36     EEL_F read_next();
  37
  38 private:
  39     NSEEL_VMCTX m_vm{};
  40     int64_t m_addr = 0;
  41     const EEL_F *m_block = nullptr;
  42     uint32_t m_block_avail = 0;
  43 };
  44
  45 //------------------------------------------------------------------------------
  46 class ysfx_eel_ram_writer {
  47 public:
  48     ysfx_eel_ram_writer() = default;
  49     ysfx_eel_ram_writer(NSEEL_VMCTX vm, int64_t addr);
  50     bool write_next(EEL_F value);
  51
  52 private:
  53     NSEEL_VMCTX m_vm{};
  54     int64_t m_addr = 0;
  55     EEL_F *m_block = nullptr;
  56     uint32_t m_block_avail = 0;
  57 };