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Use platform-specific methods for FileAccess reading and writing

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This commit is contained in:
BlueCube3310
2023-10-28 12:55:56 +02:00
parent f497156e0b
commit 6ed1731746
9 changed files with 358 additions and 0 deletions
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75
drivers/unix/file_access_unix.cpp
View File

@ -228,6 +228,51 @@ uint8_t FileAccessUnix::get_8() const {
return b;
}
uint16_t FileAccessUnix::get_16() const {
ERR_FAIL_NULL_V_MSG(f, 0, "File must be opened before use.");
uint16_t b = 0;
if (fread(&b, 1, 2, f) != 2) {
check_errors();
}
if (big_endian) {
b = BSWAP16(b);
}
return b;
}
uint32_t FileAccessUnix::get_32() const {
ERR_FAIL_NULL_V_MSG(f, 0, "File must be opened before use.");
uint32_t b = 0;
if (fread(&b, 1, 4, f) != 4) {
check_errors();
}
if (big_endian) {
b = BSWAP32(b);
}
return b;
}
uint64_t FileAccessUnix::get_64() const {
ERR_FAIL_NULL_V_MSG(f, 0, "File must be opened before use.");
uint64_t b = 0;
if (fread(&b, 1, 8, f) != 8) {
check_errors();
}
if (big_endian) {
b = BSWAP64(b);
}
return b;
}
uint64_t FileAccessUnix::get_buffer(uint8_t *p_dst, uint64_t p_length) const {
ERR_FAIL_COND_V(!p_dst && p_length > 0, -1);
ERR_FAIL_NULL_V_MSG(f, -1, "File must be opened before use.");
@ -251,6 +296,36 @@ void FileAccessUnix::store_8(uint8_t p_dest) {
ERR_FAIL_COND(fwrite(&p_dest, 1, 1, f) != 1);
}
void FileAccessUnix::store_16(uint16_t p_dest) {
ERR_FAIL_NULL_MSG(f, "File must be opened before use.");
if (big_endian) {
p_dest = BSWAP16(p_dest);
}
ERR_FAIL_COND(fwrite(&p_dest, 1, 2, f) != 2);
}
void FileAccessUnix::store_32(uint32_t p_dest) {
ERR_FAIL_NULL_MSG(f, "File must be opened before use.");
if (big_endian) {
p_dest = BSWAP32(p_dest);
}
ERR_FAIL_COND(fwrite(&p_dest, 1, 4, f) != 4);
}
void FileAccessUnix::store_64(uint64_t p_dest) {
ERR_FAIL_NULL_MSG(f, "File must be opened before use.");
if (big_endian) {
p_dest = BSWAP64(p_dest);
}
ERR_FAIL_COND(fwrite(&p_dest, 1, 8, f) != 8);
}
void FileAccessUnix::store_buffer(const uint8_t *p_src, uint64_t p_length) {
ERR_FAIL_NULL_MSG(f, "File must be opened before use.");
ERR_FAIL_COND(!p_src && p_length > 0);

6
drivers/unix/file_access_unix.h
View File

@ -68,12 +68,18 @@ public:
virtual bool eof_reached() const override; ///< reading passed EOF
virtual uint8_t get_8() const override; ///< get a byte
virtual uint16_t get_16() const override;
virtual uint32_t get_32() const override;
virtual uint64_t get_64() const override;
virtual uint64_t get_buffer(uint8_t *p_dst, uint64_t p_length) const override;
virtual Error get_error() const override; ///< get last error
virtual void flush() override;
virtual void store_8(uint8_t p_dest) override; ///< store a byte
virtual void store_16(uint16_t p_dest) override;
virtual void store_32(uint32_t p_dest) override;
virtual void store_64(uint64_t p_dest) override;
virtual void store_buffer(const uint8_t *p_src, uint64_t p_length) override; ///< store an array of bytes
virtual bool file_exists(const String &p_path) override; ///< return true if a file exists