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1.1 ohara 1: /* -*- mode: C; coding: euc-japan -*- */
1.8 ! ohara 2: /* $OpenXM: OpenXM/src/ox_toolkit/ox_Xsample.c,v 1.7 2004/12/01 17:32:26 ohara Exp $ */
1.1 ohara 3:
4: #include <stdio.h>
1.6 ohara 5: #include <stdlib.h>
1.2 ohara 6: #include "ox_toolkit.h"
1.1 ohara 7:
1.3 ohara 8: OXFILE *fd_rw;
1.1 ohara 9:
10: #define INIT_S_SIZE 2048
11: #define EXT_S_SIZE 2048
12:
13: static int stack_size = 0;
14: static int stack_pointer = 0;
15: static cmo **stack = NULL;
16:
17: int initialize_stack()
18: {
19: stack_pointer = 0;
1.3 ohara 20: stack_size = INIT_S_SIZE;
21: stack = malloc(stack_size*sizeof(cmo*));
1.1 ohara 22: }
23:
24: static int extend_stack()
25: {
1.3 ohara 26: int size2 = stack_size + EXT_S_SIZE;
27: cmo **stack2 = malloc(size2*sizeof(cmo*));
28: memcpy(stack2, stack, stack_size*sizeof(cmo *));
29: free(stack);
30: stack = stack2;
31: stack_size = size2;
1.1 ohara 32: }
33:
34: int push(cmo* m)
35: {
36: stack[stack_pointer] = m;
37: stack_pointer++;
38: if (stack_pointer >= stack_size) {
1.3 ohara 39: extend_stack();
1.1 ohara 40: }
41: }
42:
43: cmo* pop()
44: {
45: if (stack_pointer > 0) {
46: stack_pointer--;
47: return stack[stack_pointer];
48: }
49: return new_cmo_null();
50: }
51:
52: void pops(int n)
53: {
54: stack_pointer -= n;
55: if (stack_pointer < 0) {
56: stack_pointer = 0;
57: }
58: }
59:
1.8 ! ohara 60: #define OX_XSAMPLE_VERSION "1999/12/14 15:25:00"
1.1 ohara 61:
62: int sm_mathcap()
63: {
1.8 ! ohara 64: mathcap_init(OX_XSAMPLE_VERSION, "ox_Xsample");
1.6 ohara 65: push(oxf_cmo_mathcap(fd_rw));
1.1 ohara 66: return 0;
67: }
68:
69: int sm_popCMO()
70: {
71: cmo* m = pop();
72:
73: if (m != NULL) {
74: send_ox_cmo(fd_rw, m);
75: return 0;
76: }
77: return SM_popCMO;
78: }
79:
80: cmo_error2 *make_error2(int code)
81: {
1.3 ohara 82: return new_cmo_int32(-1);
1.1 ohara 83: }
84:
85: int get_i()
86: {
1.3 ohara 87: cmo *c = pop();
88: if (c->tag == CMO_INT32) {
89: return ((cmo_int32 *)c)->i;
90: }else if (c->tag == CMO_ZZ) {
91: return mpz_get_si(((cmo_zz *)c)->mpz);
92: }
93: make_error2(-1);
94: return 0;
1.1 ohara 95: }
96:
97: int get_xy(int *x, int *y)
98: {
1.6 ohara 99: pop();
1.3 ohara 100: *x = get_i();
101: *y = get_i();
1.1 ohara 102: }
103:
104: int my_setpixel()
105: {
1.3 ohara 106: int x, y;
107: get_xy(&x, &y);
108: setpixel(x, y);
109: push(new_cmo_int32(0));
1.1 ohara 110: }
111:
112: int my_moveto()
113: {
1.3 ohara 114: int x, y;
115: get_xy(&x, &y);
116: moveto(x, y);
117: push(new_cmo_int32(0));
1.1 ohara 118: }
119:
120: int my_lineto()
121: {
1.3 ohara 122: int x, y;
123: get_xy(&x, &y);
124: lineto(x, y);
125: push(new_cmo_int32(0));
1.1 ohara 126: }
127:
128: int my_clear()
129: {
1.3 ohara 130: /* dummy */
131: pop();
132: push(new_cmo_int32(0));
1.1 ohara 133: }
134:
135: int sm_executeFunction()
136: {
1.3 ohara 137: cmo_string *func = (cmo_string *)pop();
138: if (func->tag != CMO_STRING) {
139: push(make_error2(0));
140: return -1;
141: }
142: if (strcmp(func->s, "setpixel") == 0) {
143: my_setpixel();
144: }else if (strcmp(func->s, "moveto") == 0) {
145: my_moveto();
146: }else if (strcmp(func->s, "lineto") == 0) {
147: my_lineto();
148: }else if (strcmp(func->s, "clear") == 0) {
149: my_clear();
150: }else {
151: push(make_error2(0));
152: return -1;
153: }
1.1 ohara 154: }
155:
156:
157: int receive_and_execute_sm_command()
158: {
159: int code = receive_int32(fd_rw);
160: switch(code) {
161: case SM_popCMO:
162: sm_popCMO();
163: break;
164: case SM_executeFunction:
165: sm_executeFunction();
166: break;
167: case SM_mathcap:
168: sm_mathcap();
169: break;
170: case SM_setMathCap:
171: pop();
172: break;
173: default:
1.7 ohara 174: ;
1.1 ohara 175: }
176: }
177:
178: int receive()
179: {
180: int tag;
181:
182: tag = receive_ox_tag(fd_rw);
183: switch(tag) {
184: case OX_DATA:
185: push(receive_cmo(fd_rw));
186: break;
187: case OX_COMMAND:
188: receive_and_execute_sm_command();
189: break;
190: default:
1.7 ohara 191: ;
1.1 ohara 192: }
193: return 0;
194: }
195:
196: int main()
197: {
1.5 ohara 198: ox_stderr_init(stderr);
1.1 ohara 199: initialize_stack();
200:
1.3 ohara 201: fd_rw = oxf_open(3);
202: oxf_determine_byteorder_server(fd_rw);
203:
204: gopen();
1.1 ohara 205: while(1) {
206: receive();
1.3 ohara 207: gFlush();
1.1 ohara 208: }
1.3 ohara 209: gclose();
1.1 ohara 210: }