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- /*
- * Copyright (c) 1992 The Regents of the University of California.
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose, without fee, and without written agreement is
- * hereby granted, provided that the above copyright notice and the following
- * two paragraphs appear in all copies of this software.
- *
- * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
- * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
- * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
- * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
- #include <math.h>
- #include "video.h"
- #include "dither.h"
-
- /* Array that remaps color numbers to actual pixel values used by X server. */
-
- unsigned char pixel[256];
-
- /* Arrays holding quantized value ranged for lum, cr, and cb. */
-
- int lum_values[LUM_RANGE];
- int cr_values[CR_RANGE];
- int cb_values[CB_RANGE];
-
-
- /* Structures used by the X server. */
-
- Display *display;
-
- /*
- *--------------------------------------------------------------
- *
- * ConvertColor --
- *
- * Given a l, cr, cb tuple, converts it to r,g,b.
- *
- * Results:
- * r,g,b values returned in pointers passed as parameters.
- *
- * Side effects:
- * None.
- *
- *--------------------------------------------------------------
- */
-
- static void
- ConvertColor(l, cr, cb, r, g, b)
- unsigned char l, cr, cb;
- unsigned char *r, *g, *b;
- {
- double fl, fcr, fcb, fr, fg, fb;
-
- fl = (double) l;
- fcr = ((double) cr) - 128.0;
- fcb = ((double) cb) - 128.0;
-
-
- fr = fl + (1.40200 * fcb);
- fg = fl - (0.71414 * fcb) - (0.34414 * fcr);
- fb = fl + (1.77200 * fcr);
-
- if (fr < 0.0) fr = 0.0;
- else if (fr > 255.0) fr = 255.0;
-
- if (fg < 0.0) fg = 0.0;
- else if (fg > 255.0) fg = 255.0;
-
- if (fb < 0.0) fb = 0.0;
- else if (fb > 255.0) fb = 255.0;
-
- *r = (unsigned char) fr;
- *g = (unsigned char) fg;
- *b = (unsigned char) fb;
-
- }
-
- /* Array back mapping pixel value to color number. Used for debugging and dumping
- purposes.
- */
-
- static char backpixel[256];
-
-
-
- /*
- *--------------------------------------------------------------
- *
- * ExecuteDisplay --
- *
- * Actually displays display plane in previously created window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *--------------------------------------------------------------
- */
-
- /***************************************************************
- vid_stream->current->display is a pointer to a bitmap of dimensions
- vid_stream->mb_width * 16 by vid_stream->mb_height * 16. The RGB
- data are pixel interleaved. - WAR
- ***************************************************************/
- extern int writeToStdout;
-
- void ExecuteDisplay(vid_stream)
- VidStream *vid_stream;
- {
- int iWidth, iHeight;
-
- ++totNumFrames;
- fwrite((void *) &totNumFrames, (size_t) sizeof(int), (size_t) 1, stdout);
- iWidth = (vid_stream->mb_width << 4);
- fwrite((void *) &iWidth, (size_t) sizeof(int), (size_t) 1, stdout);
- iHeight = (vid_stream->mb_height << 4);
- fwrite((void *) &iHeight, (size_t) sizeof(int), (size_t) 1, stdout);
- fwrite((void *) vid_stream->current->display, (size_t) sizeof(char),
- (size_t) (3*iWidth*iHeight), stdout);
- return;
- }
-
-
-