;строки с именами функций
op_table_str:
macro ADD_OP a,b,c
{
db 'gl',`a,' ',c,0
}
include 'opinfo.inc'
;указатели на функции ;static void (*op_table_func[])(GLContext *,GLParam *)=
op_table_func:
macro ADD_OP a,b,c
{
dd glop#a
}
include 'opinfo.inc'
;число параметров в функциях
op_table_size:
macro ADD_OP a,b,c
{
dd b+1
}
include 'opinfo.inc'
;output:
; eax = context.shared_state.lists[list]
align 4
proc find_list uses ebx, context:dword, list:dword
mov eax,[context]
mov eax,[eax+offs_cont_shared_state]
mov ebx,[list]
shl ebx,2
add eax,ebx
mov eax,[eax]
ret
endp
;static void delete_list(GLContext *c,int list)
;{
; GLParamBuffer *pb,*pb1;
; GLList *l;
; l=find_list(c,list);
; assert(l != NULL);
; /* free param buffer */
; pb=l->first_op_buffer;
; while (pb!=NULL) {
; pb1=pb->next;
; gl_free(pb);
; pb=pb1;
; }
; gl_free(l);
; c->shared_state.lists[list]=NULL;
;}
;static GLList *alloc_list(GLContext *c,int list)
;{
; GLList *l;
; GLParamBuffer *ob;
; l=gl_zalloc(sizeof(GLList));
; ob=gl_zalloc(sizeof(GLParamBuffer));
; ob->next=NULL;
; l->first_op_buffer=ob;
; ob->ops[0].op=OP_EndList;
; c->shared_state.lists[list]=l;
; return l;
;}
;void gl_print_op(FILE *f,GLParam *p)
;{
; int op;
; char *s;
; op=p[0].op;
; p++;
; s=op_table_str[op];
; while (*s != 0) {
; if (*s == '%') {
; s++;
; switch (*s++) {
; case 'f':
; fprintf(f,"%g",p[0].f);
; break;
; default:
; fprintf(f,"%d",p[0].i);
; break;
; }
; p++;
; } else {
; fputc(*s,f);
; s++;
; }
; }
; fprintf(f,"\n");
;}
align 4
proc gl_compile_op uses eax ebx, context:dword, p:dword
mov eax,[context]
; int op,op_size;
; GLParamBuffer *ob,*ob1;
; int index,i;
; op=p[0].op;
; op_size=op_table_size[op];
; index=c->current_op_buffer_index;
; ob=c->current_op_buffer;
; /* we should be able to add a NextBuffer opcode */
; if ((index + op_size) > (OP_BUFFER_MAX_SIZE-2)) {
; ob1=gl_zalloc(sizeof(GLParamBuffer));
; ob1->next=NULL;
; ob->next=ob1;
; ob->ops[index].op=OP_NextBuffer;
; ob->ops[index+1].p=(void *)ob1;
; c->current_op_buffer=ob1;
; ob=ob1;
; index=0;
; }
; for(i=0;i<op_size;i++) {
; ob->ops[index]=p[i];
; index++;
; }
; c->current_op_buffer_index=index;
ret
endp
align 4
proc gl_add_op uses eax ebx ecx, p:dword ;GLParam*
if DEBUG
push edi esi
mov ebx,[p]
mov ebx,[ebx]
lea eax,[op_table_str]
@@:
cmp ebx,0
je @f
cmp byte[eax],0
jne .no_dec
dec ebx
.no_dec:
inc eax
jmp @b
@@:
stdcall dbg_print,eax,txt_nl
mov esi,eax
mov word[NumberSymbolsAD],3
mov ebx,[p]
lea edi,[buf_param]
mov byte[edi],0
mov ecx,80
.cycle_0:
cmp byte[esi],'%'
jne .no_param
cmp ebx,[p]
je @f
stdcall str_n_cat,edi,txt_zp_sp,2
stdcall str_len,edi
add edi,eax
@@:
add ebx,4
inc esi
cmp byte[esi],'f'
jne @f
fld dword[ebx]
fstp qword[Data_Double]
call DoubleFloat_to_String
stdcall str_cat, edi,Data_String
@@:
cmp byte[esi],'d'
jne @f
stdcall str_len,edi
add edi,eax
sub ecx,eax
mov eax,dword[ebx]
stdcall convert_int_to_str,ecx
@@:
.no_param:
inc esi
cmp byte[esi],0
jne .cycle_0
stdcall str_cat, edi,txt_nl
stdcall dbg_print,txt_sp,buf_param
pop esi edi
end if
call gl_get_context
mov ebx,[p]
cmp dword[eax+offs_cont_exec_flag],0
je @f
push ebx
push eax
mov ecx,dword[ebx] ;ecx = OP_...
shl ecx,2
lea ebx,[op_table_func]
add ecx,ebx
call dword[ecx] ;op_table_func[op](c,p)
@@:
cmp dword[eax+offs_cont_compile_flag],0
je @f
stdcall gl_compile_op,eax,[p]
@@:
cmp dword[eax+offs_cont_print_flag],0
je @f
;gl_print_op(stderr,p);
@@:
ret
endp
; this opcode is never called directly
align 4
proc glopEndList, context:dword, p:dword
; assert(0);
ret
endp
; this opcode is never called directly
align 4
proc glopNextBuffer, context:dword, p:dword
; assert(0);
ret
endp
;void glopCallList(GLContext *c,GLParam *p)
;{
; GLList *l;
; int list,op;
; list=p[1].ui;
; l=find_list(c,list);
; if (l == NULL) gl_fatal_error("list %d not defined",list);
; p=l->first_op_buffer->ops;
; while (1) {
; op=p[0].op;
; if (op == OP_EndList) break;
; if (op == OP_NextBuffer) {
; p=(GLParam *)p[1].p;
; } else {
; op_table_func[op](c,p);
; p+=op_table_size[op];
; }
; }
;}
;void glNewList(unsigned int list,int mode)
;{
; GLList *l;
; GLContext *c=gl_get_context();
;
; assert(mode == GL_COMPILE || mode == GL_COMPILE_AND_EXECUTE);
; assert(c->compile_flag == 0);
;
; l=find_list(c,list);
; if (l!=NULL) delete_list(c,list);
; l=alloc_list(c,list);
;
; c->current_op_buffer=l->first_op_buffer;
; c->current_op_buffer_index=0;
;
; c->compile_flag=1;
; c->exec_flag=(mode == GL_COMPILE_AND_EXECUTE);
;}
;void glEndList(void)
;{
; GLContext *c=gl_get_context();
; GLParam p[1];
; assert(c->compile_flag == 1);
; /* end of list */
; p[0].op=OP_EndList;
; gl_compile_op(c,p);
; c->compile_flag=0;
; c->exec_flag=1;
;}
;output:
; eax = (find_list(gl_get_context,list) != NULL)
align 4
proc glIsList, list:dword
call gl_get_context
stdcall find_list, eax,[list]
cmp eax,0 ;NULL
je @f
mov eax,1
@@:
ret
endp
;unsigned int glGenLists(int range)
;{
; GLContext *c=gl_get_context();
; int count,i,list;
; GLList **lists;
; lists=c->shared_state.lists;
; count=0;
; for(i=0;i<MAX_DISPLAY_LISTS;i++) {
; if (lists[i]==NULL) {
; count++;
; if (count == range) {
; list=i-range+1;
; for(i=0;i<range;i++) {
; alloc_list(c,list+i);
; }
; return list;
; }
; } else {
; count=0;
; }
; }
; return 0;
;}