1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file newgrf_config.h Functions to find and configure NewGRFs. */
#ifndef NEWGRF_CONFIG_H
#define NEWGRF_CONFIG_H
#include "strings_type.h"
#include "core/alloc_type.hpp"
#include "core/smallmap_type.hpp"
#include "misc/countedptr.hpp"
#include "fileio_type.h"
#include "textfile_type.h"
/** GRF config bit flags */
enum GCF_Flags {
GCF_SYSTEM, ///< GRF file is an openttd-internal system grf
GCF_UNSAFE, ///< GRF file is unsafe for static usage
GCF_STATIC, ///< GRF file is used statically (can be used in any MP game)
GCF_COMPATIBLE, ///< GRF file does not exactly match the requested GRF (different MD5SUM), but grfid matches)
GCF_COPY, ///< The data is copied from a grf in _all_grfs
GCF_INIT_ONLY, ///< GRF file is processed up to GLS_INIT
GCF_RESERVED, ///< GRF file passed GLS_RESERVE stage
GCF_INVALID, ///< GRF is unusable with this version of OpenTTD
};
/** Status of GRF */
enum GRFStatus {
GCS_UNKNOWN, ///< The status of this grf file is unknown
GCS_DISABLED, ///< GRF file is disabled
GCS_NOT_FOUND, ///< GRF file was not found in the local cache
GCS_INITIALISED, ///< GRF file has been initialised
GCS_ACTIVATED, ///< GRF file has been activated
};
/** Encountered GRF bugs */
enum GRFBugs {
GBUG_VEH_LENGTH, ///< Length of rail vehicle changes when not inside a depot
GBUG_VEH_REFIT, ///< Articulated vehicles carry different cargoes resp. are differently refittable than specified in purchase list
GBUG_VEH_POWERED_WAGON, ///< Powered wagon changed poweredness state when not inside a depot
GBUG_UNKNOWN_CB_RESULT, ///< A callback returned an unknown/invalid result
GBUG_VEH_CAPACITY, ///< Capacity of vehicle changes when not refitting or arranging
};
/** Status of post-gameload GRF compatibility check */
enum GRFListCompatibility {
GLC_ALL_GOOD, ///< All GRF needed by game are present
GLC_COMPATIBLE, ///< Compatible (eg. the same ID, but different checksum) GRF found in at least one case
GLC_NOT_FOUND, ///< At least one GRF couldn't be found (higher priority than GLC_COMPATIBLE)
};
/** Information that can/has to be stored about a GRF's palette. */
enum GRFPalette {
GRFP_USE_BIT = 0, ///< The bit used for storing the palette to use.
GRFP_GRF_OFFSET = 2, ///< The offset of the GRFP_GRF data.
GRFP_GRF_SIZE = 2, ///< The size of the GRFP_GRF data.
GRFP_BLT_OFFSET = 4, ///< The offset of the GRFP_BLT data.
GRFP_BLT_SIZE = 1, ///< The size of the GRFP_BLT data.
GRFP_USE_DOS = 0x0, ///< The palette state is set to use the DOS palette.
GRFP_USE_WINDOWS = 0x1, ///< The palette state is set to use the Windows palette.
GRFP_USE_MASK = 0x1, ///< Bitmask to get only the use palette use states.
GRFP_GRF_UNSET = 0x0 << GRFP_GRF_OFFSET, ///< The NewGRF provided no information.
GRFP_GRF_DOS = 0x1 << GRFP_GRF_OFFSET, ///< The NewGRF says the DOS palette can be used.
GRFP_GRF_WINDOWS = 0x2 << GRFP_GRF_OFFSET, ///< The NewGRF says the Windows palette can be used.
GRFP_GRF_ANY = GRFP_GRF_DOS | GRFP_GRF_WINDOWS, ///< The NewGRF says any palette can be used.
GRFP_GRF_MASK = GRFP_GRF_ANY, ///< Bitmask to get only the NewGRF supplied information.
GRFP_BLT_UNSET = 0x0 << GRFP_BLT_OFFSET, ///< The NewGRF provided no information or doesn't care about a 32 bpp blitter.
GRFP_BLT_32BPP = 0x1 << GRFP_BLT_OFFSET, ///< The NewGRF prefers a 32 bpp blitter.
GRFP_BLT_MASK = GRFP_BLT_32BPP, ///< Bitmask to only get the blitter information.
};
/** Basic data to distinguish a GRF. Used in the server list window */
struct GRFIdentifier {
uint32 grfid; ///< GRF ID (defined by Action 0x08)
uint8 md5sum[16]; ///< MD5 checksum of file to distinguish files with the same GRF ID (eg. newer version of GRF)
/**
* Does the identification match the provided values?
* @param grfid Expected grfid.
* @param md5sum Expected md5sum, may be \c nullptr (in which case, do not check it).
* @return the object has the provided grfid and md5sum.
*/
inline bool HasGrfIdentifier(uint32 grfid, const uint8 *md5sum) const
{
if (this->grfid != grfid) return false;
if (md5sum == nullptr) return true;
return memcmp(md5sum, this->md5sum, sizeof(this->md5sum)) == 0;
}
};
/** Information about why GRF had problems during initialisation */
struct GRFError : ZeroedMemoryAllocator {
GRFError(StringID severity, StringID message = 0);
GRFError(const GRFError &error);
~GRFError();
char *custom_message; ///< Custom message (if present)
char *data; ///< Additional data for message and custom_message
StringID message; ///< Default message
StringID severity; ///< Info / Warning / Error / Fatal
uint32 param_value[2]; ///< Values of GRF parameters to show for message and custom_message
};
/** The possible types of a newgrf parameter. */
enum GRFParameterType {
PTYPE_UINT_ENUM, ///< The parameter allows a range of numbers, each of which can have a special name
PTYPE_BOOL, ///< The parameter is either 0 or 1
PTYPE_END, ///< Invalid parameter type
};
/** Information about one grf parameter. */
struct GRFParameterInfo {
GRFParameterInfo(uint nr);
GRFParameterInfo(GRFParameterInfo &info);
~GRFParameterInfo();
struct GRFText *name; ///< The name of this parameter
struct GRFText *desc; ///< The description of this parameter
GRFParameterType type; ///< The type of this parameter
uint32 min_value; ///< The minimal value this parameter can have
uint32 max_value; ///< The maximal value of this parameter
uint32 def_value; ///< Default value of this parameter
byte param_nr; ///< GRF parameter to store content in
byte first_bit; ///< First bit to use in the GRF parameter
byte num_bit; ///< Number of bits to use for this parameter
SmallMap<uint32, struct GRFText *> value_names; ///< Names for each value.
bool complete_labels; ///< True if all values have a label.
uint32 GetValue(struct GRFConfig *config) const;
void SetValue(struct GRFConfig *config, uint32 value);
void Finalize();
};
/** Reference counted wrapper around a GRFText pointer. */
struct GRFTextWrapper : public SimpleCountedObject {
struct GRFText *text; ///< The actual text
GRFTextWrapper();
~GRFTextWrapper();
};
/** Information about GRF, used in the game and (part of it) in savegames */
struct GRFConfig : ZeroedMemoryAllocator {
GRFConfig(const char *filename = nullptr);
GRFConfig(const GRFConfig &config);
~GRFConfig();
GRFIdentifier ident; ///< grfid and md5sum to uniquely identify newgrfs
uint8 original_md5sum[16]; ///< MD5 checksum of original file if only a 'compatible' file was loaded
char *filename; ///< Filename - either with or without full path
GRFTextWrapper *name; ///< NOSAVE: GRF name (Action 0x08)
GRFTextWrapper *info; ///< NOSAVE: GRF info (author, copyright, ...) (Action 0x08)
GRFTextWrapper *url; ///< NOSAVE: URL belonging to this GRF.
GRFError *error; ///< NOSAVE: Error/Warning during GRF loading (Action 0x0B)
uint32 version; ///< NOSAVE: Version a NewGRF can set so only the newest NewGRF is shown
uint32 min_loadable_version; ///< NOSAVE: Minimum compatible version a NewGRF can define
uint8 flags; ///< NOSAVE: GCF_Flags, bitset
GRFStatus status; ///< NOSAVE: GRFStatus, enum
uint32 grf_bugs; ///< NOSAVE: bugs in this GRF in this run, @see enum GRFBugs
uint32 param[0x80]; ///< GRF parameters
uint8 num_params; ///< Number of used parameters
uint8 num_valid_params; ///< NOSAVE: Number of valid parameters (action 0x14)
uint8 palette; ///< GRFPalette, bitset
std::vector<GRFParameterInfo *> param_info; ///< NOSAVE: extra information about the parameters
bool has_param_defaults; ///< NOSAVE: did this newgrf specify any defaults for it's parameters
struct GRFConfig *next; ///< NOSAVE: Next item in the linked list
void CopyParams(const GRFConfig &src);
const char *GetTextfile(TextfileType type) const;
const char *GetName() const;
const char *GetDescription() const;
const char *GetURL() const;
void SetParameterDefaults();
void SetSuitablePalette();
void FinalizeParameterInfo();
};
/** Method to find GRFs using FindGRFConfig */
enum FindGRFConfigMode {
FGCM_EXACT, ///< Only find Grfs matching md5sum
FGCM_COMPATIBLE, ///< Find best compatible Grf wrt. desired_version
FGCM_NEWEST, ///< Find newest Grf
FGCM_NEWEST_VALID,///< Find newest Grf, ignoring Grfs with GCF_INVALID set
FGCM_ANY, ///< Use first found
};
extern GRFConfig *_all_grfs; ///< First item in list of all scanned NewGRFs
extern GRFConfig *_grfconfig; ///< First item in list of current GRF set up
extern GRFConfig *_grfconfig_newgame; ///< First item in list of default GRF set up
extern GRFConfig *_grfconfig_static; ///< First item in list of static GRF set up
extern uint _missing_extra_graphics; ///< Number of sprites provided by the fallback extra GRF, i.e. missing in the baseset.
/** Callback for NewGRF scanning. */
struct NewGRFScanCallback {
/** Make sure the right destructor gets called. */
virtual ~NewGRFScanCallback() {}
/** Called whenever the NewGRF scan completed. */
virtual void OnNewGRFsScanned() = 0;
};
size_t GRFGetSizeOfDataSection(FILE *f);
void ScanNewGRFFiles(NewGRFScanCallback *callback);
const GRFConfig *FindGRFConfig(uint32 grfid, FindGRFConfigMode mode, const uint8 *md5sum = nullptr, uint32 desired_version = 0);
GRFConfig *GetGRFConfig(uint32 grfid, uint32 mask = 0xFFFFFFFF);
GRFConfig **CopyGRFConfigList(GRFConfig **dst, const GRFConfig *src, bool init_only);
void AppendStaticGRFConfigs(GRFConfig **dst);
void AppendToGRFConfigList(GRFConfig **dst, GRFConfig *el);
void ClearGRFConfigList(GRFConfig **config);
void ResetGRFConfig(bool defaults);
GRFListCompatibility IsGoodGRFConfigList(GRFConfig *grfconfig);
bool FillGRFDetails(GRFConfig *config, bool is_static, Subdirectory subdir = NEWGRF_DIR);
char *GRFBuildParamList(char *dst, const GRFConfig *c, const char *last);
/* In newgrf_gui.cpp */
void ShowNewGRFSettings(bool editable, bool show_params, bool exec_changes, GRFConfig **config);
/** For communication about GRFs over the network */
#define UNKNOWN_GRF_NAME_PLACEHOLDER "<Unknown>"
GRFTextWrapper *FindUnknownGRFName(uint32 grfid, uint8 *md5sum, bool create);
void UpdateNewGRFScanStatus(uint num, const char *name);
bool UpdateNewGRFConfigPalette(int32 p1 = 0);
#endif /* NEWGRF_CONFIG_H */
|
