63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#include "utils/logger.h"
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#include <coreinit/memdefaultheap.h>
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#include <cstdint>
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#include <fcntl.h>
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#include <malloc.h>
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#include <string>
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#include <unistd.h>
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#define ROUNDDOWN(val, align) ((val) & ~(align - 1))
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#define ROUNDUP(val, align) ROUNDDOWN(((val) + (align - 1)), align)
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int32_t LoadFileToMem(const std::string &filepath, uint8_t **inbuffer, uint32_t *size) {
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//! always initialze input
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*inbuffer = nullptr;
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if (size) {
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*size = 0;
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}
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int32_t iFd = open(filepath.c_str(), O_RDONLY);
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if (iFd < 0) {
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return -1;
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}
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uint32_t filesize = lseek(iFd, 0, SEEK_END);
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lseek(iFd, 0, SEEK_SET);
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auto *buffer = (uint8_t *) MEMAllocFromDefaultHeapEx(ROUNDUP(filesize, 0x40), 0x40);
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if (buffer == nullptr) {
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close(iFd);
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return -2;
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}
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uint32_t blocksize = 0x20000;
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uint32_t done = 0;
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int32_t readBytes = 0;
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while (done < filesize) {
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if (done + blocksize > filesize) {
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blocksize = filesize - done;
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}
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readBytes = read(iFd, buffer + done, blocksize);
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if (readBytes <= 0)
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break;
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done += readBytes;
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}
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::close(iFd);
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if (done != filesize) {
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free(buffer);
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buffer = nullptr;
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return -3;
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}
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*inbuffer = buffer;
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//! sign is optional input
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if (size) {
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*size = filesize;
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}
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return filesize;
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} |