You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
2.4 KiB
109 lines
2.4 KiB
#pragma once |
|
|
|
#include <array> |
|
#include <cstddef> |
|
#include <cstdint> |
|
#include <memory> |
|
|
|
#include "appfat.h" |
|
#include "diablo.h" |
|
#include "storm/storm.h" |
|
#include "storm/storm_sdl_rw.h" |
|
#include "utils/stdcompat/cstddef.hpp" |
|
|
|
namespace devilution { |
|
|
|
class SFile { |
|
public: |
|
explicit SFile(const char *path) |
|
{ |
|
handle_ = SFileOpenRw(path); |
|
if (handle_ == nullptr) { |
|
if (!gbQuietMode) { |
|
const std::uint32_t code = SErrGetLastError(); |
|
if (code == STORM_ERROR_FILE_NOT_FOUND) { |
|
app_fatal("Failed to open file:\n%s\n\nFile not found", path); |
|
} else { |
|
app_fatal("Failed to open file:\n%s\n\nError Code: %u", path, code); |
|
} |
|
} |
|
} |
|
} |
|
|
|
~SFile() |
|
{ |
|
if (handle_ != nullptr) |
|
SDL_RWclose(handle_); |
|
} |
|
|
|
[[nodiscard]] bool Ok() const |
|
{ |
|
return handle_ != nullptr; |
|
} |
|
|
|
[[nodiscard]] std::size_t Size() const |
|
{ |
|
return SDL_RWsize(handle_); |
|
} |
|
|
|
bool Read(void *buffer, std::size_t len) const |
|
{ |
|
return SDL_RWread(handle_, buffer, len, 1); |
|
} |
|
|
|
private: |
|
SDL_RWops *handle_; |
|
}; |
|
|
|
template <typename T> |
|
void LoadFileInMem(const char *path, T *data) |
|
{ |
|
SFile file { path }; |
|
if (!file.Ok()) |
|
return; |
|
const std::size_t fileLen = file.Size(); |
|
if ((fileLen % sizeof(T)) != 0) |
|
app_fatal("File size does not align with type\n%s", path); |
|
file.Read(reinterpret_cast<byte *>(data), fileLen); |
|
} |
|
|
|
template <typename T> |
|
void LoadFileInMem(const char *path, T *data, std::size_t count) |
|
{ |
|
SFile file { path }; |
|
if (!file.Ok()) |
|
return; |
|
file.Read(reinterpret_cast<byte *>(data), count * sizeof(T)); |
|
} |
|
|
|
template <typename T, std::size_t N> |
|
void LoadFileInMem(const char *path, std::array<T, N> &data) |
|
{ |
|
LoadFileInMem(path, data.data(), N); |
|
} |
|
|
|
/** |
|
* @brief Load a file in to a buffer |
|
* @param path Path of file |
|
* @param numRead Number of T elements read |
|
* @return Buffer with content of file |
|
*/ |
|
template <typename T = byte> |
|
std::unique_ptr<T[]> LoadFileInMem(const char *path, std::size_t *numRead = nullptr) |
|
{ |
|
SFile file { path }; |
|
if (!file.Ok()) |
|
return nullptr; |
|
const std::size_t fileLen = file.Size(); |
|
if ((fileLen % sizeof(T)) != 0) |
|
app_fatal("File size does not align with type\n%s", path); |
|
|
|
if (numRead != nullptr) |
|
*numRead = fileLen / sizeof(T); |
|
|
|
std::unique_ptr<T[]> buf { new T[fileLen / sizeof(T)] }; |
|
file.Read(reinterpret_cast<byte *>(buf.get()), fileLen); |
|
return buf; |
|
} |
|
|
|
} // namespace devilution
|
|
|