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rude
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
//-----------------------------------------------------------------------------
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//
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// ImageLib Sources
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// Copyright (C) 2000-2009 by Denton Woods
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// Last modified: 02/12/2009
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//
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// Filename: src-IL/src/il_ftx.c
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//
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// Description: Reads from a Heavy Metal: FAKK2 (.ftx) file.
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//
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//-----------------------------------------------------------------------------
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#include "il_internal.h"
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#ifndef IL_NO_FTX
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ILboolean iLoadFtxInternal(void);
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//! Reads a FTX file
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ILboolean ilLoadFtx(ILconst_string FileName)
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{
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ILHANDLE FtxFile;
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ILboolean bFtx = IL_FALSE;
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FtxFile = iopenr(FileName);
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if (FtxFile == NULL) {
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ilSetError(IL_COULD_NOT_OPEN_FILE);
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return bFtx;
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}
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bFtx = ilLoadFtxF(FtxFile);
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icloser(FtxFile);
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return bFtx;
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}
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//! Reads an already-opened FTX file
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ILboolean ilLoadFtxF(ILHANDLE File)
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{
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ILuint FirstPos;
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ILboolean bRet;
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iSetInputFile(File);
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FirstPos = itell();
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bRet = iLoadFtxInternal();
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iseek(FirstPos, IL_SEEK_SET);
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return bRet;
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}
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//! Reads from a memory "lump" that contains a FTX
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ILboolean ilLoadFtxL(const void *Lump, ILuint Size)
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{
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iSetInputLump(Lump, Size);
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return iLoadFtxInternal();
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}
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// Internal function used to load the FTX.
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ILboolean iLoadFtxInternal(void)
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{
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ILuint Width, Height, HasAlpha;
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if (iCurImage == NULL) {
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ilSetError(IL_ILLEGAL_OPERATION);
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return IL_FALSE;
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}
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Width = GetLittleUInt();
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Height = GetLittleUInt();
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HasAlpha = GetLittleUInt(); // Kind of backwards from what I would think...
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//@TODO: Right now, it appears that all images are in RGBA format. See if I can find specs otherwise
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// or images that load incorrectly like this.
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//if (HasAlpha == 0) { // RGBA format
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if (!ilTexImage(Width, Height, 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, NULL))
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return IL_FALSE;
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//}
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//else if (HasAlpha == 1) { // RGB format
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// if (!ilTexImage(Width, Height, 1, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL))
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// return IL_FALSE;
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//}
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//else { // Unknown format
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// ilSetError(IL_INVALID_FILE_HEADER);
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// return IL_FALSE;
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//}
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// The origin will always be in the upper left.
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iCurImage->Origin = IL_ORIGIN_UPPER_LEFT;
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// All we have to do for this format is read the raw, uncompressed data.
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if (iread(iCurImage->Data, 1, iCurImage->SizeOfData) != iCurImage->SizeOfData)
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return IL_FALSE;
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return ilFixImage();
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}
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#endif//IL_NO_FTX
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