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almost finish CKBitmapData read

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yyc12345
2023-09-11 22:20:45 +08:00
parent e2647ed39b
commit 9c1fcd172d
6 changed files with 292 additions and 53 deletions
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44
LibCmo/CK2/CKStateChunk.hpp
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@ -1,6 +1,8 @@
#pragma once
#include "../VTAll.hpp"
#include <memory>
#include <functional>
namespace LibCmo::CK2 {
@ -80,15 +82,11 @@ namespace LibCmo::CK2 {
CKDWORD GetDataSize(void);
CK_STATECHUNK_DATAVERSION GetDataVersion();
void SetDataVersion(CK_STATECHUNK_DATAVERSION version);
/**
* @brief Free the buffer allocated by CKStateChunk reading functions.
* @param buf The buffer need to be free.
*/
void DeleteBuffer(const void* buf);
bool Skip(CKDWORD DwordCount);
private:
CKDWORD GetCeilDwordSize(size_t char_size);
void* GetCurrentPointer();
bool ResizeBuffer(CKDWORD new_dwsize);
bool EnsureWriteSpace(CKDWORD dwsize);
bool EnsureReadSpace(CKDWORD dword_required);
@ -200,6 +198,19 @@ namespace LibCmo::CK2 {
ReadAndFillBuffer_LEndian16(void*) Read Byte based size. -> ReadBuffer
*/
/**
* @brief The deleter for std::unique_ptr of CKStateChunk created buffer.
*/
struct BufferDeleter {
BufferDeleter() = default;
BufferDeleter(const BufferDeleter&) noexcept {}
void operator()(void* buf);
};
/**
* @brief The type of CKStateChunk auto free buffer.
*/
using TBuffer = std::unique_ptr<void, BufferDeleter>;
/// <summary>
/// Read a buffer with unknow size (order user specific it).
/// <para>ReadAndFillBuffer(int, void*), ReadAndFillBuffer_LEndian(int, void*), ReadAndFillBuffer_LEndian16(int, void*) are redirected to this.</para>
@ -219,6 +230,29 @@ namespace LibCmo::CK2 {
/// <param name="len">a pointer to the variable receiving the length of gotten buffer.</param>
/// <returns></returns>
bool ReadBuffer(void** buf, CKDWORD* len_in_byte);
/**
* @brief A auto free wrapper for ReadBuffer
* @param uptr The pointer to unique_ptr receiving data.
* @param len_in_byte The size of gotten buffer.
* @return
*/
bool ReadBufferWrapper(TBuffer* uptr, CKDWORD* len_in_byte);
/**
* @brief Perform a dry buffer reading.
* This function will only make sure there is enough space for your reading.
* And return the start memory address to you.
* And will not create any extra memory like ReadBuffer.
* @param buf[out] a pointer to the pointer receiving data start address.
* @param ordered_sizepin] your expected length of this buffer.
* @return
*/
bool ReadDryBuffer(const void** buf, CKDWORD ordered_size);
/**
* @brief Free the buffer allocated by CKStateChunk reading functions.
* @param buf The buffer need to be free.
*/
void DeleteBuffer(const void* buf);
/* ========== Sequence Functions ==========*/