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(svn r20254) -Add: allow NewGRFs to specify their palette

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rubidium 2010-07-31 09:44:38 +00:00
parent e469a94a2d
commit 4a4f02dc81
3 changed files with 36 additions and 1 deletions
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22
src/newgrf.cpp
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@ -5931,6 +5931,27 @@ static bool ChangeGRFNumUsedParams(size_t len, ByteReader *buf)
return true;
}
/** Callback function for 'INFO'->'PALS' to set the number of valid parameters. */
static bool ChangeGRFPalette(size_t len, ByteReader *buf)
{
if (len != 1) {
grfmsg(2, "StaticGRFInfo: expected only 1 byte for 'INFO'->'PALS' but got " PRINTF_SIZE ", ignoring this field", len);
buf->Skip(len);
} else {
char data = buf->ReadByte();
switch (data) {
case '*':
case 'A': _cur_grfconfig->palette |= GRFP_GRF_ANY; break;
case 'W': _cur_grfconfig->palette |= GRFP_GRF_WINDOWS; break;
case 'D': _cur_grfconfig->palette |= GRFP_GRF_DOS; break;
default:
grfmsg(2, "StaticGRFInfo: unexpected value '%02x' for 'INFO'->'PALS', ignoring this field", data);
break;
}
}
return true;
}
typedef bool (*DataHandler)(size_t, ByteReader *); ///< Type of callback function for binary nodes
typedef bool (*TextHandler)(byte, const char *str); ///< Type of callback function for text nodes
typedef bool (*BranchHandler)(ByteReader *); ///< Type of callback function for branch nodes
@ -6018,6 +6039,7 @@ AllowedSubtags _tags_info[] = {
AllowedSubtags('NAME', ChangeGRFName),
AllowedSubtags('DESC', ChangeGRFDescription),
AllowedSubtags('NPAR', ChangeGRFNumUsedParams),
AllowedSubtags('PALS', ChangeGRFPalette),
AllowedSubtags()
};

7
src/newgrf_config.cpp
View File

@ -92,7 +92,12 @@ const char *GRFConfig::GetDescription() const
*/
void GRFConfig::SetSuitablePalette()
{
PaletteType pal = _use_palette;
PaletteType pal;
switch (this->palette & GRFP_GRF_MASK) {
case GRFP_GRF_DOS: pal = PAL_DOS; break;
case GRFP_GRF_WINDOWS: pal = PAL_WINDOWS; break;
default: pal = _use_palette; break;
}
SB(this->palette, GRFP_USE_BIT, 1, pal == PAL_WINDOWS ? GRFP_USE_WINDOWS : GRFP_USE_DOS);
}

8
src/newgrf_config.h
View File

@ -52,10 +52,18 @@ enum GRFListCompatibility {
/** 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_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.
};