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//-----------------------------------------------------------------------------
//
// ImageLib Sources
// Copyright (C) 2000-2009 by Denton Woods
// Last modified: 03/07/2009
//
// Filename: src-IL/src/rawdata.c
//
// Description: "Raw" file functions
//
//-----------------------------------------------------------------------------
#include "il_internal.h"
//#ifndef IL_NO_DATA
ILboolean iLoadDataInternal(ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp);
//! Reads a raw data file
ILboolean ILAPIENTRY ilLoadData(ILconst_string FileName, ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp)
{
ILHANDLE RawFile;
ILboolean bRaw = IL_FALSE;
// No need to check for raw data
/*if (!iCheckExtension(FileName, "raw")) {
ilSetError(IL_INVALID_EXTENSION);
return bRaw;
}*/
RawFile = iopenr(FileName);
if (RawFile == NULL) {
ilSetError(IL_COULD_NOT_OPEN_FILE);
return bRaw;
}
bRaw = ilLoadDataF(RawFile, Width, Height, Depth, Bpp);
icloser(RawFile);
return bRaw;
}
//! Reads an already-opened raw data file
ILboolean ILAPIENTRY ilLoadDataF(ILHANDLE File, ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp)
{
ILuint FirstPos;
ILboolean bRet;
iSetInputFile(File);
FirstPos = itell();
bRet = iLoadDataInternal(Width, Height, Depth, Bpp);
iseek(FirstPos, IL_SEEK_SET);
return bRet;
}
//! Reads from a raw data memory "lump"
ILboolean ILAPIENTRY ilLoadDataL(void *Lump, ILuint Size, ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp)
{
iSetInputLump(Lump, Size);
return iLoadDataInternal(Width, Height, Depth, Bpp);
}
// Internal function to load a raw data image
ILboolean iLoadDataInternal(ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp)
{
if (iCurImage == NULL || ((Bpp != 1) && (Bpp != 3) && (Bpp != 4))) {
ilSetError(IL_ILLEGAL_OPERATION);
return IL_FALSE;
}
if (!ilTexImage(Width, Height, Depth, Bpp, 0, IL_UNSIGNED_BYTE, NULL)) {
return IL_FALSE;
}
iCurImage->Origin = IL_ORIGIN_UPPER_LEFT;
// Tries to read the correct amount of data
if (iread(iCurImage->Data, Width * Height * Depth * Bpp, 1) != 1)
return IL_FALSE;
if (iCurImage->Bpp == 1)
iCurImage->Format = IL_LUMINANCE;
else if (iCurImage->Bpp == 3)
iCurImage->Format = IL_RGB;
else // 4
iCurImage->Format = IL_RGBA;
return ilFixImage();
}
//! Save the current image to FileName as raw data
ILboolean ILAPIENTRY ilSaveData(ILconst_string FileName)
{
ILHANDLE DataFile;
if (iCurImage == NULL) {
ilSetError(IL_ILLEGAL_OPERATION);
return IL_FALSE;
}
DataFile = iopenr(FileName);
if (DataFile == NULL) {
ilSetError(IL_COULD_NOT_OPEN_FILE);
return IL_FALSE;
}
iwrite(iCurImage->Data, 1, iCurImage->SizeOfData);
icloser(DataFile);
return IL_TRUE;
}
//#endif//IL_NO_DATA
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