RDR-Classes/script/scrProgram.hpp

#pragma once
#include "base/pgBase.hpp"
#include "scrNativeHandler.hpp"

#include <cstdint>

namespace rage
{
class scrProgram : public pgBase 
{
public:
  std::uint8_t **m_CodeBlocks;           // 0x10
  std::uint32_t m_Hash;                  // 0x18
  std::uint32_t m_CodeSize;              // 0x1C
  std::uint32_t m_ArgCount;              // 0x20
  std::uint32_t m_LocalCount;            // 0x24
  std::uint32_t m_GlobalCount;           // 0x28
  std::uint32_t m_NativeCount;           // 0x2C
  void *m_LocalData;                     // 0x30
  void **m_GlobalData;                   // 0x38
  scrNativeHandler *m_NativeEntrypoints; // 0x40
  std::uint32_t m_ProcCount;             // 0x48
  char pad_004C[4];                      // 0x4C
  const char **m_ProcNames;              // 0x50
  std::uint32_t m_NameHash;              // 0x58
  std::uint32_t m_RefCount;              // 0x5C
  const char *m_Name;                    // 0x60
  const char **m_StringsData;            // 0x68
  std::uint32_t m_StringsCount;          // 0x70
  char m_Breakpoints[0x0C]; // 0x74 This is an atMap, which we don't have the
                            // class for ATM.

  bool is_valid() const { return m_CodeSize != 0; }

  std::uint32_t GetNumCodePages() const { return (m_CodeSize + 0x3FFF) >> 14; }

  std::uint32_t GetCodePageSize(std::uint32_t page) const {
    auto num = GetNumCodePages();
    if (page < num) {
      if (page == num - 1)
        return m_CodeSize & 0x3FFF;
      return 0x4000;
    }

    return 0;
  }

  std::uint32_t GetFullCodeSize() const {
    auto numPages = GetNumCodePages();
    if (!numPages)
      return 0;
    if (numPages == 1)
      --numPages;

    return (numPages * 0x4000) + (m_CodeSize & 0x3FFF);
  }

  std::uint8_t *GetCodePage(std::uint32_t page) const {
    return m_CodeBlocks[page];
  }

  std::uint8_t *GetCodeAddress(std::uint32_t index) const {
    if (index < m_CodeSize)
      return &m_CodeBlocks[index >> 14][index & 0x3FFF];

    return nullptr;
  }

  const char *GetString(std::uint32_t index) const {
    if (index < m_StringsCount)
      return &m_StringsData[index >> 14][index & 0x3FFF];

    return nullptr;
  }

  scrNativeHandler *GetAddressOfNativeEntrypoint(scrNativeHandler entrypoint) {
    for (std::uint32_t i = 0; i < m_NativeCount; ++i) {
      if (m_NativeEntrypoints[i] == entrypoint) {
        return m_NativeEntrypoints + i;
      }
    }

    return nullptr;
  }
};
static_assert(sizeof(scrProgram) == 0x80);
}