FreeCalypso > hg > freecalypso-sw
annotate lcdemu/ximage.c @ 922:fb3f04a62f71
fc-loadtool: flash program-bin now performs a CRC-32 verification
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
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date | Mon, 19 Oct 2015 04:10:34 +0000 |
parents | 7a189b7bbd67 |
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rev | line source |
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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, |
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55 "error: fc-lcdemu has not been adapted for X11 depth != 24, yours is %d\n", |
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56 display_depth); |
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57 exit(1); |
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58 } |
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59 } |