Rev 693 | Go to most recent revision | Details | Last modification | View Log | RSS feed
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| 692 | mauro | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Mauro Marinoni <mauro.marinoni@unipv.it> |
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| 10 | * (see the web pages for full authors list) |
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| 11 | * |
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| 12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 13 | * |
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| 14 | * http://www.sssup.it |
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| 15 | * http://retis.sssup.it |
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| 16 | * http://shark.sssup.it |
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| 17 | */ |
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| 18 | |||
| 19 | /* |
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| 20 | * This program is free software; you can redistribute it and/or modify |
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| 21 | * it under the terms of the GNU General Public License as published by |
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| 22 | * the Free Software Foundation; either version 2 of the License, or |
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| 23 | * (at your option) any later version. |
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| 24 | * |
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| 25 | * This program is distributed in the hope that it will be useful, |
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| 26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 28 | * GNU General Public License for more details. |
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| 29 | * |
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| 30 | * You should have received a copy of the GNU General Public License |
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| 31 | * along with this program; if not, write to the Free Software |
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| 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 33 | */ |
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| 34 | |||
| 35 | #include "kernel/kern.h" |
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| 36 | #include "string.h" |
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| 37 | #include "drivers/shark_fb26.h" |
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| 38 | #include "snapshot.h" |
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| 39 | |||
| 40 | struct SNAP_SLOT{ |
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| 41 | char used; |
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| 42 | int x; |
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| 43 | int y; |
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| 44 | int** buff; |
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| 45 | } sslot[16]; |
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| 46 | |||
| 47 | int** snapshot_getslot(int nbuff, int sx, int sy) |
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| 48 | { |
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| 49 | int i; |
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| 50 | int** tmp; |
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| 51 | |||
| 52 | if ((sx<=0) || (sy<=0) || (nbuff<=0) || (nbuff>15)){ |
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| 53 | return NULL; |
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| 54 | } |
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| 55 | if (sslot[nbuff].used) |
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| 56 | return NULL; |
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| 57 | |||
| 58 | /* Allocate pointers to rows. */ |
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| 59 | tmp = (int **) kern_alloc((unsigned) (sy)*sizeof(int*)); |
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| 60 | if (!tmp) |
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| 61 | return NULL; |
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| 62 | |||
| 63 | /* Allocate rows and set pointers to them. */ |
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| 64 | for (i = 0; i < sy; i++){ |
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| 65 | tmp[i] = (int *) kern_alloc((unsigned) (sx)*sizeof(int)); |
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| 66 | if (!tmp[i]) |
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| 67 | return NULL; |
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| 68 | } |
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| 69 | |||
| 70 | sslot[nbuff].used = 1; |
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| 71 | sslot[nbuff].x = sx; |
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| 72 | sslot[nbuff].y = sy; |
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| 73 | sslot[nbuff].buff = tmp; |
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| 74 | return tmp; |
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| 75 | } |
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| 76 | |||
| 77 | void snapshot_freeslot(int nbuff) |
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| 78 | { |
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| 79 | int i; |
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| 80 | |||
| 81 | if (sslot[nbuff].used){ |
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| 82 | for (i = 0; i < sslot[nbuff].y; i++) |
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| 83 | kern_free(sslot[nbuff].buff[i], (unsigned) (sslot[nbuff].x)*sizeof(int)); |
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| 84 | kern_free(sslot[nbuff].buff, (unsigned) (sslot[nbuff].y)*sizeof(int*)); |
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| 85 | sslot[nbuff].used = 0; |
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| 86 | } |
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| 87 | } |
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| 88 | |||
| 89 | void snapshot_grab(int nbuff) |
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| 90 | { |
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| 91 | int i, j; |
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| 92 | |||
| 93 | for (i = 0; i < sslot[nbuff].x; i++) |
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| 94 | for (j = 0; j < sslot[nbuff].x; j++) |
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| 95 | sslot[nbuff].buff[i][j] = grx_getpixel(i,j); |
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| 96 | } |
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| 97 | |||
| 98 | int snapshot_save_pgm(int nbuff, char *fname) |
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| 99 | { |
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| 100 | char out_st[40]; |
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| 101 | register int i, j; |
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| 102 | DOS_FILE *outf; |
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| 103 | |||
| 104 | if ((outf = DOS_fopen(fname, "w")) == NULL) { |
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| 105 | return -1; |
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| 106 | } else { |
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| 107 | sprintf(out_st, "P5\n%d %d\n%d\n", sslot[nbuff].x, sslot[nbuff].y, 255); |
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| 108 | DOS_fwrite(out_st, strlen(out_st), 1, outf); |
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| 109 | cprintf(out_st); |
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| 110 | |||
| 111 | for (j = 0; j < sslot[nbuff].y; j++) { |
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| 112 | for (i = 0; i < sslot[nbuff].x; i++) { |
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| 113 | DOS_fwrite(&(sslot[nbuff].buff[i][j]), 1, 1, outf); |
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| 114 | } |
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| 115 | } |
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| 116 | DOS_fclose(outf); |
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| 117 | } |
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| 118 | return 0; |
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| 119 | } |
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| 120 | |||
| 121 | int snapshot_save_ppm(int nbuff, char *fname) |
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| 122 | { |
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| 123 | char out_st[40]; |
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| 124 | register int i, j; |
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| 125 | int col_r, col_g, col_b; |
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| 126 | DOS_FILE *outf; |
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| 127 | |||
| 128 | if ((outf = DOS_fopen(fname, "w")) == NULL) { |
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| 129 | return -1; |
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| 130 | } else { |
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| 131 | sprintf(out_st, "P3\n%d %d\n%d\n", sslot[nbuff].x, sslot[nbuff].y, 255); |
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| 132 | DOS_fwrite(out_st, strlen(out_st), 1, outf); |
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| 133 | cprintf(out_st); |
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| 134 | |||
| 135 | for (j = 0; j < sslot[nbuff].y; j++) { |
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| 136 | for (i = 0; i < sslot[nbuff].x; i++) { |
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| 137 | col_r = ((sslot[nbuff].buff[i][j] & 0xF800) >> 11) * 4; |
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| 138 | col_g = ((sslot[nbuff].buff[i][j] & 0x07E0) >> 5) * 2; |
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| 139 | col_b = (sslot[nbuff].buff[i][j] & 0x001F) * 4; |
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| 140 | sprintf(out_st, "%d %d %d ", col_r, col_g, col_b); |
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| 141 | DOS_fwrite(out_st, strlen(out_st), 1, outf); |
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| 142 | } |
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| 143 | } |
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| 144 | DOS_fclose(outf); |
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| 145 | } |
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| 146 | return 0; |
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| 147 | } |