1 /* 2 * jcsample.h 3 * 4 * This file was part of the Independent JPEG Group's software: 5 * Copyright (C) 1991-1996, Thomas G. Lane. 6 * For conditions of distribution and use, see the accompanying README.ijg 7 * file. 8 */ 9 10 LOCAL(void) expand_right_edge(JSAMPARRAY image_data,int num_rows,JDIMENSION input_cols,JDIMENSION output_cols)11 expand_right_edge (JSAMPARRAY image_data, int num_rows, 12 JDIMENSION input_cols, JDIMENSION output_cols) 13 { 14 register JSAMPROW ptr; 15 register JSAMPLE pixval; 16 register int count; 17 int row; 18 int numcols = (int) (output_cols - input_cols); 19 20 if (numcols > 0) { 21 for (row = 0; row < num_rows; row++) { 22 ptr = image_data[row] + input_cols; 23 pixval = ptr[-1]; /* don't need GETJSAMPLE() here */ 24 for (count = numcols; count > 0; count--) 25 *ptr++ = pixval; 26 } 27 } 28 } 29