50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
#include "Dengine/Platform.h"
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i32 platform_readFileToBuffer(const char *const filePath,
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PlatformFileRead *file)
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{
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HANDLE fileHandle = CreateFile(filePath, GENERIC_READ, FILE_SHARE_READ,
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NULL, OPEN_ALWAYS, 0, NULL);
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if (fileHandle == INVALID_HANDLE_VALUE)
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{
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printf("CreateFile() failed: INVALID_HANDLE_VALUE\n");
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return -1;
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}
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LARGE_INTEGER fileSize;
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BOOL status = GetFileSizeEx(fileHandle, &fileSize);
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if (!status)
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{
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printf("GetFileSizeEx() failed: %d error number\n",
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status);
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return status;
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}
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// TODO(doyle): Warning we assume files less than 4GB
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file->buffer = PLATFORM_MEM_ALLOC(fileSize.LowPart, char);
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file->size = fileSize.LowPart;
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DWORD numBytesRead = 0;
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status =
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ReadFile(fileHandle, file->buffer, file->size, &numBytesRead, NULL);
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if (!status)
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{
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printf("ReadFile() failed: %d error number\n",
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status);
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PLATFORM_MEM_FREE(file->buffer, file->size);
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return status;
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}
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else if (numBytesRead != file->size)
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{
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printf(
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"ReadFile() failed: Number of bytes read doesn't match file "
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"size\n");
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PLATFORM_MEM_FREE(file->buffer, file->size);
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return -1;
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}
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return 0;
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}
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