예제 #1
0
파일: il_hdr.c 프로젝트: kphillisjr/DevIL
/* default minimal header. modify if you want more information in header */
ILboolean RGBE_WriteHeader(ILuint width, ILuint height, rgbe_header_info *info)
{
	char *programtype = "RGBE";

	if (info && (info->valid & RGBE_VALID_PROGRAMTYPE))
		programtype = info->programtype;
	if (ilprintf("#?%s\n",programtype) < 0)
		return IL_FALSE;
	/* The #? is to identify file type, the programtype is optional. */
	if (info && (info->valid & RGBE_VALID_GAMMA)) {
		if (ilprintf("GAMMA=%g\n",info->gamma) < 0)
		  return IL_FALSE;
	}
	if (info && (info->valid & RGBE_VALID_EXPOSURE)) {
		if (ilprintf("EXPOSURE=%g\n",info->exposure) < 0)
		  return IL_FALSE;
	}
	if (ilprintf("FORMAT=32-bit_rle_rgbe\n\n") < 0)
		return IL_FALSE;
	if (ilprintf("-Y %d +X %d\n", height, width) < 0)
		return IL_FALSE;
	return IL_TRUE;
}
예제 #2
0
파일: il_pnm.c 프로젝트: MichaelH13/sdkpub
// Internal function used to save the Pnm.
ILboolean iSavePnmInternal()
{
	ILuint		Bpp, MaxVal = UCHAR_MAX, i = 0, j, k;
	ILenum		Type = 0;
	ILuint		LinePos = 0;  // Cannot exceed 70 for pnm's!
	ILboolean	Binary;
	ILimage		*TempImage;
	ILubyte		*TempData;

	if (iCurImage == NULL) {
		ilSetError(IL_ILLEGAL_OPERATION);
		return IL_FALSE;
	}

	if (iCheckExtension(FName, IL_TEXT("pbm")))
		Type = IL_PBM_ASCII;
	else if (iCheckExtension(FName, IL_TEXT("pgm")))
		Type = IL_PGM_ASCII;
	else if (iCheckExtension(FName, IL_TEXT("ppm")))
		Type = IL_PPM_ASCII;
	else
		Type = IL_PPM_ASCII;

	/*if (!Type) {
		ilSetError(IL_INVALID_EXTENSION);
		return IL_FALSE;
	}*/

	if (iGetHint(IL_COMPRESSION_HINT) == IL_USE_COMPRESSION) {
		Type += 3;
		Binary = IL_TRUE;
	}
	else {
		Binary = IL_FALSE;
	}

	if (iCurImage->Type == IL_UNSIGNED_BYTE) {
		MaxVal = UCHAR_MAX;
	}
	else if (iCurImage->Type == IL_UNSIGNED_SHORT) {
		MaxVal = USHRT_MAX;
	}
	else {
		ilSetError(IL_FORMAT_NOT_SUPPORTED);
		return IL_FALSE;
	}
	if (MaxVal > UCHAR_MAX && Type >= IL_PBM_BINARY) {  // binary cannot be higher than 255
		ilSetError(IL_FORMAT_NOT_SUPPORTED);
		return IL_FALSE;
	}

	switch (Type)
	{
		case IL_PBM_ASCII:
			Bpp = 1;
			ilprintf("P1\n");
			TempImage = iConvertImage(iCurImage, IL_LUMINANCE, IL_UNSIGNED_BYTE);
			break;
		//case IL_PBM_BINARY:  // Don't want to mess with saving bits just yet...
			//Bpp = 1;
			//ilprintf("P4\n");
			//break;
		case IL_PBM_BINARY:
			ilSetError(IL_FORMAT_NOT_SUPPORTED);
			return IL_FALSE;
		case IL_PGM_ASCII:
			Bpp = 1;
			ilprintf("P2\n");
			TempImage = iConvertImage(iCurImage, IL_COLOUR_INDEX, IL_UNSIGNED_BYTE);
			break;
		case IL_PGM_BINARY:
			Bpp = 1;
			ilprintf("P5\n");
			TempImage = iConvertImage(iCurImage, IL_COLOUR_INDEX, IL_UNSIGNED_BYTE);
			break;
		case IL_PPM_ASCII:
			Bpp = 3;
			ilprintf("P3\n");
			TempImage = iConvertImage(iCurImage, IL_RGB, IL_UNSIGNED_BYTE);
			break;
		case IL_PPM_BINARY:
			Bpp = 3;
			ilprintf("P6\n");
			TempImage = iConvertImage(iCurImage, IL_RGB, IL_UNSIGNED_BYTE);
			break;
		default:
			ilSetError(IL_INTERNAL_ERROR);
			return IL_FALSE;
	}

	if (TempImage == NULL)
		return IL_FALSE;

	if (Bpp != TempImage->Bpp) {
		ilSetError(IL_INVALID_CONVERSION);
		return IL_FALSE;
	}

	if (TempImage->Origin != IL_ORIGIN_UPPER_LEFT) {
		TempData = iGetFlipped(TempImage);
		if (TempData == NULL) {
			ilCloseImage(TempImage);
			return IL_FALSE;
		}
	}
	else {
		TempData = TempImage->Data;
	}

	ilprintf("%d %d\n", TempImage->Width, TempImage->Height);
	if (Type != IL_PBM_BINARY && Type != IL_PBM_ASCII)  // not needed for .pbm's (only 0 and 1)
		ilprintf("%d\n", MaxVal);

	while (i < TempImage->SizeOfPlane) {
		for (j = 0; j < Bpp; j++) {
			if (Binary) {
				if (Type == IL_PBM_BINARY) {
					iputc((ILubyte)(TempData[i] > 127 ? 1 : 0));
				}
				else {
					iputc(TempData[i]);
				}
			}
			else {
				if (TempImage->Type == IL_UNSIGNED_BYTE)
					k = TempData[i];
				else  // IL_UNSIGNED_SHORT
					k = *((ILushort*)TempData + i);
				if (Type == IL_PBM_ASCII) {
					LinePos += ilprintf("%d ", TempData[i] > 127 ? 1 : 0);
				}
				else {
					LinePos += ilprintf("%d ", TempData[i]);
				}
			}

			if (TempImage->Type == IL_UNSIGNED_SHORT)
				i++;
			i++;
		}

		if (LinePos > 65) {  // Just a good number =]
			ilprintf("\n");
			LinePos = 0;
		}
	}

	if (TempImage->Origin != IL_ORIGIN_UPPER_LEFT)
		ifree(TempData);
	ilCloseImage(TempImage);

	return IL_TRUE;
}