FreeCalypso > hg > freecalypso-sw

annotate lcdemu/ximage.c @ 992:a7b0b426f9ca

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target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents 7a189b7bbd67
children
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rev   line source
906
69623c4cbf6c lcdemu: image conversion implemented for X11 depth 24
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1 /*
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2 * LCDemu based on HECterm by the same author
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3 * XImage conversion muck
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <X11/Xlib.h>
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12 #include <X11/Xresource.h>
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13 #include <X11/Xutil.h>
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14 #include "globals.h"
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15
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16 XImage *
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17 convert_image_depth24(input, npix)
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18 uint16_t *input;
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19 int npix;
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20 {
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21 uint32_t *imgbuf;
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22 int i, in, r, g, b;
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23 XImage *img;
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24
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25 imgbuf = malloc(npix * 4);
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26 if (!imgbuf) {
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27 perror("malloc");
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28 exit(1);
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29 }
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30 for (i = 0; i < npix; i++) {
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31 in = input[i];
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32 r = (in & 0xF800) << 8;
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33 g = (in & 0x07E0) << 5;
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34 b = (in & 0x001F) << 3;
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35 imgbuf[i] = r | g | b;
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36 }
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37 img = XCreateImage(mydisplay, CopyFromParent, display_depth, ZPixmap,
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38 0, (char *) imgbuf, npix, 1, 32, 0);
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39 if (!img) {
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40 perror("XCreateImage");
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41 exit(1);
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42 }
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43 return(img);
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44 }
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45
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46 init_image_conversion()
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47 {
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48 display_depth = DefaultDepth(mydisplay, DefaultScreen(mydisplay));
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49 switch (display_depth) {
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50 case 24:
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51 convert_function = convert_image_depth24;
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52 break;
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53 default:
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54 fprintf(stderr,
907
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55 "error: fc-lcdemu has not been adapted for X11 depth != 24, yours is %d\n",
906
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56 display_depth);
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57 exit(1);
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58 }
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59 }