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src/Source/FreeImage/PluginPFM.cpp  view on Meta::CPAN

	if((image_type != FIT_RGBF) && (image_type != FIT_FLOAT)) {
		return FALSE;
	}

	unsigned width  = FreeImage_GetWidth(dib);
	unsigned height = FreeImage_GetHeight(dib);
	unsigned lineWidth = FreeImage_GetLine(dib);
	
	// save image as Little Endian
	const float scalefactor = -1.0F;

	char buffer[PFM_MAXLINE];	// temporary buffer whose size should be enough for what we need

	// Find the appropriate magic number for this file type

	char magic = 0;

	switch(image_type) {
		case FIT_RGBF:
			magic = 'F';	// RGBF
			break;	
		case FIT_FLOAT:
			magic = 'f';	// float greyscale
			break;
		default:
			return FALSE;
	}

	// Write the header info

	sprintf(buffer, "P%c\n%d %d\n%f\n", magic, width, height, scalefactor);
	io->write_proc(&buffer, (unsigned int)strlen(buffer), 1, handle);

	// Write the image data
	for (unsigned y = 0; y < height; y++) {	
		BYTE *bits = FreeImage_GetScanLine(dib, height - 1 - y);
		io->write_proc(bits, 1, lineWidth, handle);
	}

	return TRUE;
}

// ==========================================================
//   Init
// ==========================================================

void DLL_CALLCONV
InitPFM(Plugin *plugin, int format_id) {
	s_format_id = format_id;

	plugin->format_proc = Format;
	plugin->description_proc = Description;
	plugin->extension_proc = Extension;
	plugin->regexpr_proc = RegExpr;
	plugin->open_proc = NULL;
	plugin->close_proc = NULL;
	plugin->pagecount_proc = NULL;
	plugin->pagecapability_proc = NULL;
	plugin->load_proc = Load;
	plugin->save_proc = Save;
	plugin->validate_proc = Validate;
	plugin->mime_proc = MimeType;
	plugin->supports_export_bpp_proc = SupportsExportDepth;
	plugin->supports_export_type_proc = SupportsExportType;
	plugin->supports_icc_profiles_proc = NULL;
	plugin->supports_no_pixels_proc = SupportsNoPixels;
}