140 lines
2.6 KiB
C++
140 lines
2.6 KiB
C++
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "decompiler.h"
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#include "platform_util.h"
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sp_decomp_t *Sp_InitDecomp(const char *file, int *err)
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{
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sp_decomp_t *dc;
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sp_file_t *plugin;
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if ((plugin = Sp_ReadPlugin(file, err)) == NULL)
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{
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return NULL;
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}
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dc = new sp_decomp_t;
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memset(dc, 0, sizeof(sp_decomp_t));
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dc->plugin = plugin;
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dc->pcode_map = (cell_t *)malloc(dc->plugin->pcode_size);
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memset(dc->pcode_map, 0, dc->plugin->pcode_size);
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#define OPDEF(num,enm,str,prms) \
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dc->opdef[num].name = str; \
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dc->opdef[num].params = prms;
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#include "opcodes.tbl"
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#undef OPDEF
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return dc;
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}
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void Sp_FreeDecomp(sp_decomp_t *decomp)
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{
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FunctionInfo *info, *info_temp;
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info = decomp->funcs;
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while (info != NULL)
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{
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info_temp = info->next;
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delete info;
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info = info_temp;
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}
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Sp_FreePlugin(decomp->plugin);
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free(decomp->pcode_map);
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delete decomp;
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}
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PrintBuffer::PrintBuffer() : printbuf(NULL), printbuf_alloc(0), printbuf_pos(0)
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{
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}
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PrintBuffer::~PrintBuffer()
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{
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free(printbuf);
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}
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void PrintBuffer::Grow(size_t len)
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{
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if (printbuf_pos + len > printbuf_alloc)
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{
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if (printbuf_alloc == 0)
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{
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printbuf_alloc = len * 8;
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}
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else
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{
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printbuf_alloc += len;
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printbuf_alloc *= 2;
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}
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printbuf = (char *)realloc(printbuf, printbuf_alloc);
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}
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}
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void PrintBuffer::Append(const char *fmt, ...)
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{
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size_t len;
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va_list ap;
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char buffer[2048];
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va_start(ap, fmt);
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len = Sp_FormatArgs(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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Grow(len);
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printbuf = (char *)realloc(printbuf, printbuf_alloc);
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strcpy(&printbuf[printbuf_pos], buffer);
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printbuf_pos += len;
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}
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void PrintBuffer::Set(const char *fmt, ...)
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{
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size_t len;
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va_list ap;
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char buffer[2048];
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va_start(ap, fmt);
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len = Sp_FormatArgs(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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Reset();
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Grow(len);
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printbuf = (char *)realloc(printbuf, printbuf_alloc);
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strcpy(&printbuf[printbuf_pos], buffer);
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printbuf_pos += len;
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}
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void PrintBuffer::Prepend(const char *fmt, ...)
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{
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size_t len;
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va_list ap;
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char buffer[2048];
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va_start(ap, fmt);
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len = Sp_FormatArgs(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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Grow(len + 1);
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/* Move old data forward. Move one extra byte for the null terminator. */
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memmove(&printbuf[len], printbuf, printbuf_pos + 1);
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printbuf_pos += len;
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/* Move the new data in. */
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memcpy(printbuf, buffer, len);
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}
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void PrintBuffer::Reset()
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{
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printbuf_pos = 0;
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}
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void PrintBuffer::Dump(FILE *fp)
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{
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fprintf(fp, "%s", printbuf);
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}
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