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scummvm/scumm/resource_v7he.cpp
Travis Howell 2c0f36cddc Should be HE60/70. 
svn-id: r15211
2004-09-21 01:00:30 +00:00

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36 KiB
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 The ScummVM project
*
* Parts of code heavily based on:
* icoutils - A set of programs dealing with MS Windows icons and cursors.
* Copyright (C) 1998-2001 Oskar Liljeblad
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "scumm/scumm.h"
#include "scumm/intern.h"
#include "scumm/resource.h"
#include "scumm/resource_v7he.h"
#include "common/stream.h"
namespace Scumm {
/*
* Static variables
*/
const char *res_types[] = {
/* 0x01: */
"cursor", "bitmap", "icon", "menu", "dialog", "string",
"fontdir", "font", "accelerator", "rcdata", "messagelist",
"group_cursor", NULL, "group_icon", NULL,
/* the following are not defined in winbase.h, but found in wrc. */
/* 0x10: */
"version", "dlginclude", NULL, "plugplay", "vxd",
"anicursor", "aniicon"
};
#define RES_TYPE_COUNT (sizeof(res_types)/sizeof(char *))
Win32ResExtractor::Win32ResExtractor(ScummEngine_v70he *scumm) {
_vm = scumm;
snprintf(_fileName, 256, "%s.he3", _vm->getGameName());
}
void Win32ResExtractor::setCursor(int id) {
char buf[20];
byte *cursorRes = 0, *cursor = 0;
int cursorsize;
int w = 0, h = 0, hotspot_x = 0, hotspot_y = 0, keycolor = 0;
snprintf(buf, 20, "%d", id);
cursorsize = extractResource("group_cursor", buf, &cursorRes);
convertIcons(cursorRes, cursorsize, &cursor, &w, &h, &hotspot_x, &hotspot_y,
&keycolor);
_vm->setCursorHotspot(hotspot_x, hotspot_y);
_vm->setCursorFromBuffer(cursor, w, h, w);
free(cursorRes);
free(cursor);
}
int Win32ResExtractor::extractResource(const char *resType, char *resName, byte **data) {
char *arg_language = NULL;
const char *arg_type = resType;
char *arg_name = resName;
int arg_action = ACTION_LIST;
int ressize = 0;
_arg_raw = false;
/* translate --type option from resource type string to integer */
arg_type = res_type_string_to_id(arg_type);
WinLibrary fi;
/* initiate stuff */
fi.memory = NULL;
fi.file = new File;
/* get file size */
fi.file->open(_fileName);
if (!fi.file->isOpen()) {
error("Cannot open file %s", _fileName);
}
fi.total_size = fi.file->size();
if (fi.total_size == -1) {
warning("Cannot get size of file %s", fi.file->name());
goto cleanup;
}
if (fi.total_size == 0) {
warning("%s: file has a size of 0", fi.file->name());
goto cleanup;
}
/* read all of file */
fi.memory = (byte *)malloc(fi.total_size);
if (fi.file->read(fi.memory, fi.total_size) == 0) {
error("Cannot read from file %s", fi.file->name());
goto cleanup;
}
/* identify file and find resource table */
if (!read_library(&fi)) {
/* error reported by read_library */
goto cleanup;
}
// verbose_printf("file is a %s\n",
// fi.is_PE_binary ? "Windows NT `PE' binary" : "Windows 3.1 `NE' binary");
/* errors will be printed by the callback */
ressize = do_resources(&fi, arg_type, arg_name, arg_language, arg_action, data);
/* free stuff and close file */
cleanup:
if (fi.file != NULL)
fi.file->close();
if (fi.memory != NULL)
free(fi.memory);
return ressize;
}
/* res_type_id_to_string:
* Translate a numeric resource type to it's corresponding string type.
* (For informative-ness.)
*/
const char *Win32ResExtractor::res_type_id_to_string(int id) {
if (id == 241)
return "toolbar";
if (id > 0 && id <= (int)RES_TYPE_COUNT)
return res_types[id-1];
return NULL;
}
/* res_type_string_to_id:
* Translate a resource type string to integer.
* (Used to convert the --type option.)
*/
const char *Win32ResExtractor::res_type_string_to_id(const char *type) {
static const char *res_type_ids[] = {
"-1", "-2", "-3", "-4", "-5", "-6", "-7", "-8", "-9", "-10",
"-11", "-12", NULL, "-14", NULL, "-16", "-17", NULL, "-19",
"-20", "-21", "-22"
};
int c;
if (type == NULL)
return NULL;
for (c = 0 ; c < (int)RES_TYPE_COUNT ; c++) {
if (res_types[c] != NULL && !scumm_stricmp(type, res_types[c]))
return res_type_ids[c];
}
return type;
}
int Win32ResExtractor::extract_resources(WinLibrary *fi, WinResource *wr,
WinResource *type_wr, WinResource *name_wr,
WinResource *lang_wr, byte **data) {
int size;
bool free_it;
const char *type;
int32 id;
if (*data) {
error("Win32ResExtractor::extract_resources() more than one cursor");
return 0;
}
*data = extract_resource(fi, wr, &size, &free_it, type_wr->id, (lang_wr == NULL ? NULL : lang_wr->id), _arg_raw);
if (data == NULL) {
warning("Win32ResExtractor::extract_resources() problem with resource extraction");
return 0;
}
/* get named resource type if possible */
type = NULL;
if ((id = strtol(type_wr->id, 0, 10)) != 0)
type = res_type_id_to_string(id);
debugC(DEBUG_RESOURCE, "extractCursor(). Found cursor name: %s%s%s [size=%d]",
get_resource_id_quoted(name_wr),
(lang_wr->id[0] != '\0' ? " language: " : ""),
get_resource_id_quoted(lang_wr), size);
return size;
}
/* extract_resource:
* Extract a resource, returning pointer to data.
*/
byte *Win32ResExtractor::extract_resource(WinLibrary *fi, WinResource *wr, int *size,
bool *free_it, char *type, char *lang, bool raw) {
char *str;
int32 intval;
/* just return pointer to data if raw */
if (raw) {
*free_it = false;
/* get_resource_entry will print possible error */
return get_resource_entry(fi, wr, size);
}
/* find out how to extract */
str = type;
if (str != NULL && (intval = strtol(STRIP_RES_ID_FORMAT(str), 0, 10))) {
if (intval == (int)RT_GROUP_ICON) {
*free_it = true;
return extract_group_icon_cursor_resource(fi, wr, lang, size, true);
}
if (intval == (int)RT_GROUP_CURSOR) {
*free_it = true;
return extract_group_icon_cursor_resource(fi, wr, lang, size, false);
}
}
return NULL;
}
/* extract_group_icon_resource:
* Create a complete RT_GROUP_ICON resource, that can be written to
* an `.ico' file without modifications. Returns an allocated
* memory block that should be freed with free() once used.
*
* `root' is the offset in file that specifies the resource.
* `base' is the offset that string pointers are calculated from.
* `ressize' should point to an integer variable where the size of
* the returned memory block will be placed.
* `is_icon' indicates whether resource to be extracted is icon
* or cursor group.
*/
byte *Win32ResExtractor::extract_group_icon_cursor_resource(WinLibrary *fi, WinResource *wr, char *lang,
int *ressize, bool is_icon) {
Win32CursorIconDir *icondir;
Win32CursorIconFileDir *fileicondir;
byte *memory;
int c, offset, skipped;
int size;
/* get resource data and size */
icondir = (Win32CursorIconDir *)get_resource_entry(fi, wr, &size);
if (icondir == NULL) {
/* get_resource_entry will print error */
return NULL;
}
/* calculate total size of output file */
RETURN_IF_BAD_POINTER(NULL, icondir->count);
skipped = 0;
for (c = 0 ; c < icondir->count ; c++) {
int level;
int iconsize;
char name[14];
WinResource *fwr;
RETURN_IF_BAD_POINTER(NULL, icondir->entries[c]);
/*printf("%d. bytes_in_res=%d width=%d height=%d planes=%d bit_count=%d\n", c,
icondir->entries[c].bytes_in_res,
(is_icon ? icondir->entries[c].res_info.icon.width : icondir->entries[c].res_info.cursor.width),
(is_icon ? icondir->entries[c].res_info.icon.height : icondir->entries[c].res_info.cursor.height),
icondir->entries[c].plane_count,
icondir->entries[c].bit_count);*/
/* find the corresponding icon resource */
snprintf(name, sizeof(name)/sizeof(char), "-%d", icondir->entries[c].res_id);
fwr = find_resource(fi, (is_icon ? "-3" : "-1"), name, lang, &level);
if (fwr == NULL) {
warning("%s: could not find `%s' in `%s' resource.",
fi->file->name(), &name[1], (is_icon ? "group_icon" : "group_cursor"));
return NULL;
}
if (get_resource_entry(fi, fwr, &iconsize) != NULL) {
if (iconsize == 0) {
debugC(DEBUG_RESOURCE, "%s: icon resource `%s' is empty, skipping", fi->file->name(), name);
skipped++;
continue;
}
if ((uint32)iconsize != icondir->entries[c].bytes_in_res) {
debugC(DEBUG_RESOURCE, "%s: mismatch of size in icon resource `%s' and group (%d != %d)",
fi->file->name(), name, iconsize, icondir->entries[c].bytes_in_res);
}
size += iconsize; /* size += icondir->entries[c].bytes_in_res; */
/* cursor resources have two additional WORDs that contain
* hotspot info */
if (!is_icon)
size -= sizeof(uint16)*2;
}
}
offset = sizeof(Win32CursorIconFileDir) + (icondir->count-skipped) * sizeof(Win32CursorIconFileDirEntry);
size += offset;
*ressize = size;
/* allocate that much memory */
memory = (byte *)malloc(size);
fileicondir = (Win32CursorIconFileDir *)memory;
/* transfer Win32CursorIconDir structure members */
fileicondir->reserved = icondir->reserved;
fileicondir->type = icondir->type;
fileicondir->count = icondir->count - skipped;
/* transfer each cursor/icon: Win32CursorIconDirEntry and data */
skipped = 0;
for (c = 0 ; c < icondir->count ; c++) {
int level;
char name[14];
WinResource *fwr;
byte *data;
/* find the corresponding icon resource */
snprintf(name, sizeof(name)/sizeof(char), "-%d", icondir->entries[c].res_id);
fwr = find_resource(fi, (is_icon ? "-3" : "-1"), name, lang, &level);
if (fwr == NULL) {
warning("%s: could not find `%s' in `%s' resource.",
fi->file->name(), &name[1], (is_icon ? "group_icon" : "group_cursor"));
return NULL;
}
/* get data and size of that resource */
data = (byte *)get_resource_entry(fi, fwr, &size);
if (data == NULL) {
/* get_resource_entry has printed error */
return NULL;
}
if (size == 0) {
skipped++;
continue;
}
/* copy ICONDIRENTRY (not including last dwImageOffset) */
memcpy(&fileicondir->entries[c-skipped], &icondir->entries[c],
sizeof(Win32CursorIconFileDirEntry)-sizeof(uint32));
/* special treatment for cursors */
if (!is_icon) {
fileicondir->entries[c-skipped].width = icondir->entries[c].res_info.cursor.width;
fileicondir->entries[c-skipped].height = icondir->entries[c].res_info.cursor.height / 2;
fileicondir->entries[c-skipped].color_count = 0;
fileicondir->entries[c-skipped].reserved = 0;
}
/* set image offset and increase it */
fileicondir->entries[c-skipped].dib_offset = offset;
/* transfer resource into file memory */
if (is_icon) {
memcpy(&memory[offset], data, icondir->entries[c].bytes_in_res);
} else {
fileicondir->entries[c-skipped].hotspot_x = ((uint16 *) data)[0];
fileicondir->entries[c-skipped].hotspot_y = ((uint16 *) data)[1];
memcpy(&memory[offset], data+sizeof(uint16)*2,
icondir->entries[c].bytes_in_res-sizeof(uint16)*2);
offset -= sizeof(uint16)*2;
}
/* increase the offset pointer */
offset += icondir->entries[c].bytes_in_res;
}
return memory;
}
/* check_offset:
* Check if a chunk of data (determined by offset and size)
* is within the bounds of the WinLibrary file.
* Usually not called directly.
*/
bool Win32ResExtractor::check_offset(byte *memory, int total_size, const char *name, void *offset, int size) {
int need_size = (int)((byte *)offset - memory + size);
debugC(DEBUG_RESOURCE, "check_offset: size=%x vs %x offset=%x size=%x",
need_size, total_size, (byte *)offset - memory, size);
if (need_size < 0 || need_size > total_size) {
warning("%s: premature end", name);
return false;
}
return true;
}
/* do_resources:
* Do something for each resource matching type, name and lang.
*/
int Win32ResExtractor::do_resources(WinLibrary *fi, const char *type, char *name, char *lang, int action, byte **data) {
WinResource *type_wr;
WinResource *name_wr;
WinResource *lang_wr;
int size;
type_wr = (WinResource *)calloc(sizeof(WinResource)*3, 1);
name_wr = type_wr + 1;
lang_wr = type_wr + 2;
size = do_resources_recurs(fi, NULL, type_wr, name_wr, lang_wr, type, name, lang, action, data);
free(type_wr);
return size;
}
/* what is each entry in this directory level for? type, name or language? */
#define WINRESOURCE_BY_LEVEL(x) ((x)==0 ? type_wr : ((x)==1 ? name_wr : lang_wr))
/* does the id of this entry match the specified id? */
#define LEVEL_MATCHES(x) (x == NULL || x ## _wr->id[0] == '\0' || compare_resource_id(x ## _wr, x))
int Win32ResExtractor::do_resources_recurs(WinLibrary *fi, WinResource *base,
WinResource *type_wr, WinResource *name_wr, WinResource *lang_wr,
const char *type, char *name, char *lang, int action, byte **data) {
int c, rescnt;
WinResource *wr;
uint32 size = 0;
/* get a list of all resources at this level */
wr = list_resources(fi, base, &rescnt);
if (wr == NULL)
if (size != 0)
return size;
else
return 0;
/* process each resource listed */
for (c = 0 ; c < rescnt ; c++) {
/* (over)write the corresponding WinResource holder with the current */
memcpy(WINRESOURCE_BY_LEVEL(wr[c].level), wr+c, sizeof(WinResource));
/* go deeper unless there is something that does NOT match */
if (LEVEL_MATCHES(type) && LEVEL_MATCHES(name) && LEVEL_MATCHES(lang)) {
if (wr->is_directory)
size = do_resources_recurs(fi, wr+c, type_wr, name_wr, lang_wr, type, name, lang, action, data);
else
size = extract_resources(fi, wr+c, type_wr, name_wr, lang_wr, data);
}
}
/* since we're moving back one level after this, unset the
* WinResource holder used on this level */
memset(WINRESOURCE_BY_LEVEL(wr[0].level), 0, sizeof(WinResource));
return size;
}
/* return the resource id quoted if it's a string, otherwise just return it */
char *Win32ResExtractor::get_resource_id_quoted(WinResource *wr) {
static char tmp[WINRES_ID_MAXLEN+2];
if (wr->numeric_id || wr->id[0] == '\0')
return wr->id;
sprintf(tmp, "'%s'", wr->id);
return tmp;
}
bool Win32ResExtractor::compare_resource_id(WinResource *wr, const char *id) {
if (wr->numeric_id) {
int32 cmp1, cmp2;
if (id[0] == '+')
return false;
if (id[0] == '-')
id++;
if (!(cmp1 = strtol(wr->id, 0, 10)) || !(cmp2 = strtol(id, 0, 10)) || cmp1 != cmp2)
return false;
} else {
if (id[0] == '-')
return false;
if (id[0] == '+')
id++;
if (strcmp(wr->id, id))
return false;
}
return true;
}
bool Win32ResExtractor::decode_pe_resource_id(WinLibrary *fi, WinResource *wr, uint32 value) {
if (value & IMAGE_RESOURCE_NAME_IS_STRING) { /* numeric id */
int c, len;
uint16 *mem = (uint16 *)
(fi->first_resource + (value & ~IMAGE_RESOURCE_NAME_IS_STRING));
/* copy each char of the string, and terminate it */
RETURN_IF_BAD_POINTER(false, *mem);
len = mem[0];
RETURN_IF_BAD_OFFSET(false, &mem[1], sizeof(uint16) * len);
len = MIN(mem[0], (uint16)WINRES_ID_MAXLEN);
for (c = 0 ; c < len ; c++)
wr->id[c] = mem[c+1] & 0x00FF;
wr->id[len] = '\0';
} else { /* Unicode string id */
/* translate id into a string */
snprintf(wr->id, WINRES_ID_MAXLEN, "%d", value);
}
wr->numeric_id = (value & IMAGE_RESOURCE_NAME_IS_STRING ? false:true);
return true;
}
byte *Win32ResExtractor::get_resource_entry(WinLibrary *fi, WinResource *wr, int *size) {
if (fi->is_PE_binary) {
Win32ImageResourceDataEntry *dataent;
dataent = (Win32ImageResourceDataEntry *) wr->children;
RETURN_IF_BAD_POINTER(NULL, *dataent);
*size = dataent->size;
RETURN_IF_BAD_OFFSET(NULL, fi->memory + dataent->offset_to_data, *size);
return fi->memory + dataent->offset_to_data;
} else {
Win16NENameInfo *nameinfo;
int sizeshift;
nameinfo = (Win16NENameInfo *) wr->children;
sizeshift = *((uint16 *) fi->first_resource - 1);
*size = nameinfo->length << sizeshift;
RETURN_IF_BAD_OFFSET(NULL, fi->memory + (nameinfo->offset << sizeshift), *size);
return fi->memory + (nameinfo->offset << sizeshift);
}
}
bool Win32ResExtractor::decode_ne_resource_id(WinLibrary *fi, WinResource *wr, uint16 value) {
if (value & NE_RESOURCE_NAME_IS_NUMERIC) { /* numeric id */
/* translate id into a string */
snprintf(wr->id, WINRES_ID_MAXLEN, "%d", value & ~NE_RESOURCE_NAME_IS_NUMERIC);
} else { /* ASCII string id */
int len;
char *mem = (char *)NE_HEADER(fi->memory)
+ NE_HEADER(fi->memory)->rsrctab
+ value;
/* copy each char of the string, and terminate it */
RETURN_IF_BAD_POINTER(false, *mem);
len = mem[0];
RETURN_IF_BAD_OFFSET(false, &mem[1], sizeof(char) * len);
memcpy(wr->id, &mem[1], len);
wr->id[len] = '\0';
}
wr->numeric_id = (value & NE_RESOURCE_NAME_IS_NUMERIC ? true:false);
return true;
}
Win32ResExtractor::WinResource *Win32ResExtractor::list_pe_resources(WinLibrary *fi, Win32ImageResourceDirectory *pe_res, int level, int *count) {
WinResource *wr;
int c, rescnt;
Win32ImageResourceDirectoryEntry *dirent
= (Win32ImageResourceDirectoryEntry *)(pe_res + 1);
/* count number of `type' resources */
RETURN_IF_BAD_POINTER(NULL, *dirent);
rescnt = pe_res->number_of_named_entries + pe_res->number_of_id_entries;
*count = rescnt;
/* allocate WinResource's */
wr = (WinResource *)malloc(sizeof(WinResource) * rescnt);
/* fill in the WinResource's */
for (c = 0 ; c < rescnt ; c++) {
RETURN_IF_BAD_POINTER(NULL, dirent[c]);
wr[c].this_ = pe_res;
wr[c].level = level;
wr[c].is_directory = (dirent[c].u2.s.data_is_directory);
wr[c].children = fi->first_resource + dirent[c].u2.s.offset_to_directory;
/* fill in wr->id, wr->numeric_id */
if (!decode_pe_resource_id (fi, wr + c, dirent[c].u1.name))
return NULL;
}
return wr;
}
Win32ResExtractor::WinResource *Win32ResExtractor::list_ne_name_resources(WinLibrary *fi, WinResource *typeres, int *count) {
int c, rescnt;
WinResource *wr;
Win16NETypeInfo *typeinfo = (Win16NETypeInfo *) typeres->this_;
Win16NENameInfo *nameinfo = (Win16NENameInfo *) typeres->children;
/* count number of `type' resources */
RETURN_IF_BAD_POINTER(NULL, typeinfo->count);
*count = rescnt = typeinfo->count;
/* allocate WinResource's */
wr = (WinResource *)malloc(sizeof(WinResource) * rescnt);
/* fill in the WinResource's */
for (c = 0 ; c < rescnt ; c++) {
RETURN_IF_BAD_POINTER(NULL, nameinfo[c]);
wr[c].this_ = nameinfo+c;
wr[c].is_directory = false;
wr[c].children = nameinfo+c;
wr[c].level = 1;
/* fill in wr->id, wr->numeric_id */
if (!decode_ne_resource_id(fi, wr + c, (nameinfo+c)->id))
return NULL;
}
return wr;
}
Win32ResExtractor::WinResource *Win32ResExtractor::list_ne_type_resources(WinLibrary *fi, int *count) {
int c, rescnt;
WinResource *wr;
Win16NETypeInfo *typeinfo;
/* count number of `type' resources */
typeinfo = (Win16NETypeInfo *) fi->first_resource;
RETURN_IF_BAD_POINTER(NULL, *typeinfo);
for (rescnt = 0 ; typeinfo->type_id != 0 ; rescnt++) {
typeinfo = NE_TYPEINFO_NEXT(typeinfo);
RETURN_IF_BAD_POINTER(NULL, *typeinfo);
}
*count = rescnt;
/* allocate WinResource's */
wr = (WinResource *)malloc(sizeof(WinResource) * rescnt);
/* fill in the WinResource's */
typeinfo = (Win16NETypeInfo *) fi->first_resource;
for (c = 0 ; c < rescnt ; c++) {
wr[c].this_ = typeinfo;
wr[c].is_directory = (typeinfo->count != 0);
wr[c].children = typeinfo+1;
wr[c].level = 0;
/* fill in wr->id, wr->numeric_id */
if (!decode_ne_resource_id(fi, wr + c, typeinfo->type_id))
return NULL;
typeinfo = NE_TYPEINFO_NEXT(typeinfo);
}
return wr;
}
/* list_resources:
* Return an array of WinResource's in the current
* resource level specified by res.
*/
Win32ResExtractor::WinResource *Win32ResExtractor::list_resources(WinLibrary *fi, WinResource *res, int *count) {
if (res != NULL && !res->is_directory)
return NULL;
if (fi->is_PE_binary) {
return list_pe_resources(fi, (Win32ImageResourceDirectory *)
(res == NULL ? fi->first_resource : res->children),
(res == NULL ? 0 : res->level+1),
count);
} else {
return (res == NULL
? list_ne_type_resources(fi, count)
: list_ne_name_resources(fi, res, count));
}
}
/* read_library:
* Read header and get resource directory offset in a Windows library
* (AKA module).
*
*/
bool Win32ResExtractor::read_library(WinLibrary *fi) {
/* check for DOS header signature `MZ' */
RETURN_IF_BAD_POINTER(false, MZ_HEADER(fi->memory)->magic);
if (MZ_HEADER(fi->memory)->magic == IMAGE_DOS_SIGNATURE) {
DOSImageHeader *mz_header = MZ_HEADER(fi->memory);
RETURN_IF_BAD_POINTER(false, mz_header->lfanew);
if (mz_header->lfanew < sizeof(DOSImageHeader)) {
warning("%s: not a Windows library", fi->file->name());
return false;
}
}
/* check for OS2 (Win16) header signature `NE' */
RETURN_IF_BAD_POINTER(false, NE_HEADER(fi->memory)->magic);
if (NE_HEADER(fi->memory)->magic == IMAGE_OS2_SIGNATURE) {
OS2ImageHeader *header = NE_HEADER(fi->memory);
RETURN_IF_BAD_POINTER(false, header->rsrctab);
RETURN_IF_BAD_POINTER(false, header->restab);
if (header->rsrctab >= header->restab) {
warning("%s: no resource directory found", fi->file->name());
return false;
}
fi->is_PE_binary = false;
fi->first_resource = (byte *) NE_HEADER(fi->memory)
+ header->rsrctab + sizeof(uint16);
RETURN_IF_BAD_POINTER(false, *(Win16NETypeInfo *) fi->first_resource);
return true;
}
/* check for NT header signature `PE' */
RETURN_IF_BAD_POINTER(false, PE_HEADER(fi->memory)->signature);
if (PE_HEADER(fi->memory)->signature == IMAGE_NT_SIGNATURE) {
Win32ImageSectionHeader *pe_sec;
Win32ImageDataDirectory *dir;
Win32ImageNTHeaders *pe_header;
int d;
/* allocate new memory */
fi->total_size = calc_vma_size(fi);
if (fi->total_size == 0) {
/* calc_vma_size has reported error */
return false;
}
fi->memory = (byte *)realloc(fi->memory, fi->total_size);
/* relocate memory, start from last section */
pe_header = PE_HEADER(fi->memory);
RETURN_IF_BAD_POINTER(false, pe_header->file_header.number_of_sections);
/* we don't need to do OFFSET checking for the sections.
* calc_vma_size has already done that */
for (d = pe_header->file_header.number_of_sections - 1; d >= 0 ; d--) {
pe_sec = PE_SECTIONS(fi->memory) + d;
if (pe_sec->characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
continue;
//if (pe_sec->virtual_address + pe_sec->size_of_raw_data > fi->total_size)
RETURN_IF_BAD_OFFSET(0, fi->memory + pe_sec->virtual_address, pe_sec->size_of_raw_data);
RETURN_IF_BAD_OFFSET(0, fi->memory + pe_sec->pointer_to_raw_data, pe_sec->size_of_raw_data);
if (pe_sec->virtual_address != pe_sec->pointer_to_raw_data) {
memmove(fi->memory + pe_sec->virtual_address,
fi->memory + pe_sec->pointer_to_raw_data,
pe_sec->size_of_raw_data);
}
}
/* find resource directory */
RETURN_IF_BAD_POINTER(false, pe_header->optional_header.data_directory[IMAGE_DIRECTORY_ENTRY_RESOURCE]);
dir = pe_header->optional_header.data_directory + IMAGE_DIRECTORY_ENTRY_RESOURCE;
if (dir->size == 0) {
warning("%s: file contains no resources", fi->file->name());
return false;
}
fi->first_resource = fi->memory + dir->virtual_address;
fi->is_PE_binary = true;
return true;
}
/* other (unknown) header signature was found */
warning("%s: not a Windows library", fi->file->name());
return false;
}
/* calc_vma_size:
* Calculate the total amount of memory needed for a 32-bit Windows
* module. Returns -1 if file was too small.
*/
int Win32ResExtractor::calc_vma_size(WinLibrary *fi) {
Win32ImageSectionHeader *seg;
int c, segcount, size;
size = 0;
RETURN_IF_BAD_POINTER(-1, PE_HEADER(fi->memory)->file_header.number_of_sections);
segcount = PE_HEADER(fi->memory)->file_header.number_of_sections;
/* If there are no segments, just process file like it is.
* This is (probably) not the right thing to do, but problems
* will be delt with later anyway.
*/
if (segcount == 0)
return fi->total_size;
seg = PE_SECTIONS(fi->memory);
RETURN_IF_BAD_POINTER(-1, *seg);
for (c = 0 ; c < segcount ; c++) {
RETURN_IF_BAD_POINTER(0, *seg);
size = MAX((uint32)size, seg->virtual_address + seg->size_of_raw_data);
/* I have no idea what misc.virtual_size is for... */
size = MAX((uint32)size, seg->virtual_address + seg->misc.virtual_size);
seg++;
}
return size;
}
Win32ResExtractor::WinResource *Win32ResExtractor::find_with_resource_array(WinLibrary *fi, WinResource *wr, const char *id) {
int c, rescnt;
WinResource *return_wr;
wr = list_resources(fi, wr, &rescnt);
if (wr == NULL)
return NULL;
for (c = 0 ; c < rescnt ; c++) {
if (compare_resource_id(&wr[c], id)) {
/* duplicate WinResource and return it */
return_wr = (WinResource *)malloc(sizeof(WinResource));
memcpy(return_wr, &wr[c], sizeof(WinResource));
/* free old WinResource */
free(wr);
return return_wr;
}
}
return NULL;
}
Win32ResExtractor::WinResource *Win32ResExtractor::find_resource(WinLibrary *fi, const char *type, const char *name, const char *language, int *level) {
WinResource *wr;
*level = 0;
if (type == NULL)
return NULL;
wr = find_with_resource_array(fi, NULL, type);
if (wr == NULL || !wr->is_directory)
return wr;
*level = 1;
if (name == NULL)
return wr;
wr = find_with_resource_array(fi, wr, name);
if (wr == NULL || !wr->is_directory)
return wr;
*level = 2;
if (language == NULL)
return wr;
wr = find_with_resource_array(fi, wr, language);
return wr;
}
#define ROW_BYTES(bits) ((((bits) + 31) >> 5) << 2)
int Win32ResExtractor::convertIcons(byte *data, int datasize, byte **cursor, int *w, int *h,
int *hotspot_x, int *hotspot_y, int *keycolor) {
Win32CursorIconFileDir dir;
Win32CursorIconFileDirEntry *entries = NULL;
uint32 offset;
uint32 c, d;
int completed;
int matched = 0;
MemoryReadStream *in = new MemoryReadStream(data, datasize);
if (!in->read(&dir, sizeof(Win32CursorIconFileDir)- sizeof(Win32CursorIconFileDirEntry)))
goto cleanup;
fix_win32_cursor_icon_file_dir_endian(&dir);
if (dir.reserved != 0) {
warning("not an icon or cursor file (reserved non-zero)");
goto cleanup;
}
if (dir.type != 1 && dir.type != 2) {
warning("not an icon or cursor file (wrong type)");
goto cleanup;
}
entries = (Win32CursorIconFileDirEntry *)malloc(dir.count * sizeof(Win32CursorIconFileDirEntry));
for (c = 0; c < dir.count; c++) {
if (!in->read(&entries[c], sizeof(Win32CursorIconFileDirEntry)))
goto cleanup;
fix_win32_cursor_icon_file_dir_entry_endian(&entries[c]);
if (entries[c].reserved != 0)
warning("reserved is not zero");
}
offset = sizeof(Win32CursorIconFileDir) + (dir.count - 1) * (sizeof(Win32CursorIconFileDirEntry));
for (completed = 0; completed < dir.count; ) {
uint32 min_offset = 0x7fffffff;
int previous = completed;
for (c = 0; c < dir.count; c++) {
if (entries[c].dib_offset == offset) {
Win32BitmapInfoHeader bitmap;
Win32RGBQuad *palette = NULL;
uint32 palette_count = 0;
uint32 image_size, mask_size;
uint32 width, height;
byte *image_data = NULL, *mask_data = NULL;
byte *row = NULL;
if (!in->read(&bitmap, sizeof(Win32BitmapInfoHeader)))
goto local_cleanup;
fix_win32_bitmap_info_header_endian(&bitmap);
if (bitmap.size < sizeof(Win32BitmapInfoHeader)) {
warning("bitmap header is too short");
goto local_cleanup;
}
if (bitmap.compression != 0) {
warning("compressed image data not supported");
goto local_cleanup;
}
if (bitmap.x_pels_per_meter != 0)
warning("x_pels_per_meter field in bitmap should be zero");
if (bitmap.y_pels_per_meter != 0)
warning("y_pels_per_meter field in bitmap should be zero");
if (bitmap.clr_important != 0)
warning("clr_important field in bitmap should be zero");
if (bitmap.planes != 1)
warning("planes field in bitmap should be one");
if (bitmap.size != sizeof(Win32BitmapInfoHeader)) {
uint32 skip = bitmap.size - sizeof(Win32BitmapInfoHeader);
warning("skipping %d bytes of extended bitmap header", skip);
in->seek(skip, SEEK_CUR);
}
offset += bitmap.size;
if (bitmap.clr_used != 0 || bitmap.bit_count < 24) {
palette_count = (bitmap.clr_used != 0 ? bitmap.clr_used : 1 << bitmap.bit_count);
palette = (Win32RGBQuad *)malloc(sizeof(Win32RGBQuad) * palette_count);
if (!in->read(palette, sizeof(Win32RGBQuad) * palette_count))
goto local_cleanup;
offset += sizeof(Win32RGBQuad) * palette_count;
}
width = bitmap.width;
height = ABS(bitmap.height)/2;
image_size = height * ROW_BYTES(width * bitmap.bit_count);
mask_size = height * ROW_BYTES(width);
if (entries[c].dib_size != bitmap.size + image_size + mask_size + palette_count * sizeof(Win32RGBQuad))
debugC(DEBUG_RESOURCE, "incorrect total size of bitmap (%d specified; %d real)",
entries[c].dib_size,
bitmap.size + image_size + mask_size + palette_count * sizeof(Win32RGBQuad)
);
image_data = (byte *)malloc(image_size);
if (!in->read(image_data, image_size))
goto local_cleanup;
mask_data = (byte *)malloc(mask_size);
if (!in->read(mask_data, mask_size))
goto local_cleanup;
offset += image_size;
offset += mask_size;
completed++;
matched++;
*hotspot_x = entries[c].hotspot_x;
*hotspot_y = entries[c].hotspot_y;
*w = width;
*h = height;
*keycolor = 0;
*cursor = (byte *)malloc(width * height);
row = (byte *)malloc(width * 4);
for (d = 0; d < height; d++) {
uint32 x;
uint32 y = (bitmap.height < 0 ? d : height - d - 1);
uint32 imod = y * (image_size / height) * 8 / bitmap.bit_count;
//uint32 mmod = y * (mask_size / height) * 8;
for (x = 0; x < width; x++) {
uint32 color = simple_vec(image_data, x + imod, bitmap.bit_count);
// FIXME?: This works only with b/w cursors and white index may be
// different. But now it's enough.
if (color) {
cursor[0][width * d + x] = 15; // white in SCUMM
} else {
cursor[0][width * d + x] = 255; // transparent
}
/*
if (bitmap.bit_count <= 16) {
if (color >= palette_count) {
warning("color out of range in image data");
goto local_cleanup;
}
row[4*x+0] = palette[color].red;
row[4*x+1] = palette[color].green;
row[4*x+2] = palette[color].blue;
} else {
row[4*x+0] = (color >> 16) & 0xFF;
row[4*x+1] = (color >> 8) & 0xFF;
row[4*x+2] = (color >> 0) & 0xFF;
}
if (bitmap.bit_count == 32)
row[4*x+3] = (color >> 24) & 0xFF;
else
row[4*x+3] = simple_vec(mask_data, x + mmod, 1) ? 0 : 0xFF;
*/
}
}
if (row != NULL)
free(row);
if (palette != NULL)
free(palette);
if (image_data != NULL) {
free(image_data);
free(mask_data);
}
continue;
local_cleanup:
if (row != NULL)
free(row);
if (palette != NULL)
free(palette);
if (image_data != NULL) {
free(image_data);
free(mask_data);
}
goto cleanup;
} else {
if (entries[c].dib_offset > offset)
min_offset = MIN(min_offset, entries[c].dib_offset);
}
}
if (previous == completed) {
if (min_offset < offset) {
warning("offset of bitmap header incorrect (too low)");
goto cleanup;
}
debugC(DEBUG_RESOURCE, "skipping %d bytes of garbage at %d", min_offset-offset, offset);
in->seek(min_offset - offset, SEEK_CUR);
offset = min_offset;
}
}
free(entries);
return matched;
cleanup:
free(entries);
return -1;
}
uint32 Win32ResExtractor::simple_vec(byte *data, uint32 ofs, byte size) {
switch (size) {
case 1:
return (data[ofs/8] >> (7 - ofs%8)) & 1;
case 2:
return (data[ofs/4] >> ((3 - ofs%4) << 1)) & 3;
case 4:
return (data[ofs/2] >> ((1 - ofs%2) << 2)) & 15;
case 8:
return data[ofs];
case 16:
return data[2*ofs] | data[2*ofs+1] << 8;
case 24:
return data[3*ofs] | data[3*ofs+1] << 8 | data[3*ofs+2] << 16;
case 32:
return data[4*ofs] | data[4*ofs+1] << 8 | data[4*ofs+2] << 16 | data[4*ofs+3] << 24;
}
return 0;
}
#define LE16(x) ((x) = TO_LE_16(x))
#define LE32(x) ((x) = TO_LE_32(x))
void Win32ResExtractor::fix_win32_cursor_icon_file_dir_endian(Win32CursorIconFileDir *obj) {
LE16(obj->reserved);
LE16(obj->type);
LE16(obj->count);
}
void Win32ResExtractor::fix_win32_bitmap_info_header_endian(Win32BitmapInfoHeader *obj) {
LE32(obj->size);
LE32(obj->width);
LE32(obj->height);
LE16(obj->planes);
LE16(obj->bit_count);
LE32(obj->compression);
LE32(obj->size_image);
LE32(obj->x_pels_per_meter);
LE32(obj->y_pels_per_meter);
LE32(obj->clr_used);
LE32(obj->clr_important);
}
void Win32ResExtractor::fix_win32_cursor_icon_file_dir_entry_endian(Win32CursorIconFileDirEntry *obj) {
LE16(obj->hotspot_x);
LE16(obj->hotspot_y);
LE32(obj->dib_size);
LE32(obj->dib_offset);
}
void Win32ResExtractor::fix_win32_image_section_header(Win32ImageSectionHeader *obj) {
LE32(obj->misc.physical_address);
LE32(obj->virtual_address);
LE32(obj->size_of_raw_data);
LE32(obj->pointer_to_raw_data);
LE32(obj->pointer_to_relocations);
LE32(obj->pointer_to_linenumbers);
LE16(obj->number_of_relocations);
LE16(obj->number_of_linenumbers);
LE32(obj->characteristics);
}
void Win32ResExtractor::fix_os2_image_header_endian(OS2ImageHeader *obj) {
LE16(obj->magic);
LE16(obj->enttab);
LE16(obj->cbenttab);
LE32(obj->crc);
LE16(obj->flags);
LE16(obj->autodata);
LE16(obj->heap);
LE16(obj->stack);
LE32(obj->csip);
LE32(obj->sssp);
LE16(obj->cseg);
LE16(obj->cmod);
LE16(obj->cbnrestab);
LE16(obj->segtab);
LE16(obj->rsrctab);
LE16(obj->restab);
LE16(obj->modtab);
LE16(obj->imptab);
LE32(obj->nrestab);
LE16(obj->cmovent);
LE16(obj->align);
LE16(obj->cres);
LE16(obj->fastload_offset);
LE16(obj->fastload_length);
LE16(obj->swaparea);
LE16(obj->expver);
}
/* fix_win32_image_header_endian:
* NOTE: This assumes that the optional header is always available.
*/
void Win32ResExtractor::fix_win32_image_header_endian(Win32ImageNTHeaders *obj) {
LE32(obj->signature);
LE16(obj->file_header.machine);
LE16(obj->file_header.number_of_sections);
LE32(obj->file_header.time_date_stamp);
LE32(obj->file_header.pointer_to_symbol_table);
LE32(obj->file_header.number_of_symbols);
LE16(obj->file_header.size_of_optional_header);
LE16(obj->file_header.characteristics);
LE16(obj->optional_header.magic);
LE32(obj->optional_header.size_of_code);
LE32(obj->optional_header.size_of_initialized_data);
LE32(obj->optional_header.size_of_uninitialized_data);
LE32(obj->optional_header.address_of_entry_point);
LE32(obj->optional_header.base_of_code);
LE32(obj->optional_header.base_of_data);
LE32(obj->optional_header.image_base);
LE32(obj->optional_header.section_alignment);
LE32(obj->optional_header.file_alignment);
LE16(obj->optional_header.major_operating_system_version);
LE16(obj->optional_header.minor_operating_system_version);
LE16(obj->optional_header.major_image_version);
LE16(obj->optional_header.minor_image_version);
LE16(obj->optional_header.major_subsystem_version);
LE16(obj->optional_header.minor_subsystem_version);
LE32(obj->optional_header.win32_version_value);
LE32(obj->optional_header.size_of_image);
LE32(obj->optional_header.size_of_headers);
LE32(obj->optional_header.checksum);
LE16(obj->optional_header.subsystem);
LE16(obj->optional_header.dll_characteristics);
LE32(obj->optional_header.size_of_stack_reserve);
LE32(obj->optional_header.size_of_stack_commit);
LE32(obj->optional_header.size_of_heap_reserve);
LE32(obj->optional_header.size_of_heap_commit);
LE32(obj->optional_header.loader_flags);
LE32(obj->optional_header.number_of_rva_and_sizes);
}
void Win32ResExtractor::fix_win32_image_data_directory(Win32ImageDataDirectory *obj) {
LE32(obj->virtual_address);
LE32(obj->size);
}
} // End of namespace Scumm
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