Issue 2134: removed obsolete raw highlight preservation setting from GUI (still left in procparams for backwards compatilibility)

rtengine/slicer.h

@@ -0,0 +1,61 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _SLICER_
+#define _SLICER_
+
+//The image is divided in blocks even on single processor machine, mainly to decrease memory consumption
+//maximum number of pixel per block
+#define PIXELS_PER_BLOCK	250000
+
+/*
+ * Used to specify a subregion of an image and to specify a cell in this subregion
+ */
+class Block {
+	public:
+		unsigned int posX;
+		unsigned int posY;
+		unsigned int width;		// If 0, use the full width of the image
+		unsigned int height;	// If 0, use the full height of the image
+		Block();
+		Block(unsigned int x, unsigned int y, unsigned int w, unsigned int h);
+};
+
+/*
+ * This class handle the best slicing of the image with a given number of pixels per block and the number of
+ * processor, and tries to create blocks as square as possible. There can be a different number of block on
+ * each line, and the pixel per block requested may be oversized by very few percents.
+ */
+class Slicer {
+	protected:
+		bool portrait;					// Orientation of the sub-region
+		unsigned int imWidth;			// Image width
+		unsigned int imHeight;			// Image height
+		Block region;					// Sub-region to process
+		double hBlockNumber;			// Horizontal number of block for the sub-region
+		unsigned int vBlockNumber;		// Vertical number of block for the sub-region
+		double blockWidth;
+
+	public:
+		unsigned int blockNumber;		// number of block for the sub-region
+		unsigned int maxPixelNumber;	// number of pixel of the biggest block (for memory allocation purpose)
+		Slicer(unsigned int imageWidth, unsigned int imageHeight, Block *subRegion, unsigned int pixels);
+		void get_block(unsigned int blockId, Block *block);
+};
+
+#endif