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Location: cpp/openttd-patchpack/source/src/newgrf_spritegroup.cpp - annotation
r16729:482bfc615285
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(svn r21472) -Fix [FS#4298] (r21459-ish): make sure the query window is only opened once per parent window / callback.
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r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11991:9a2b087e564c r11991:9a2b087e564c r5584:545d748cc681 r11991:9a2b087e564c r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11991:9a2b087e564c r5584:545d748cc681 r11991:9a2b087e564c r5584:545d748cc681 | /* $Id$ */
/*
* 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_spritegroup.cpp Handling of primarily NewGRF action 2. */
#include "stdafx.h"
#include "newgrf.h"
#include "newgrf_spritegroup.h"
#include "sprite.h"
#include "core/pool_func.hpp"
SpriteGroupPool _spritegroup_pool("SpriteGroup");
INSTANTIATE_POOL_METHODS(SpriteGroup)
RealSpriteGroup::~RealSpriteGroup()
{
free((void*)this->loaded);
free((void*)this->loading);
}
DeterministicSpriteGroup::~DeterministicSpriteGroup()
{
free(this->adjusts);
free(this->ranges);
}
RandomizedSpriteGroup::~RandomizedSpriteGroup()
{
free((void*)this->groups);
}
TileLayoutSpriteGroup::~TileLayoutSpriteGroup()
{
free((void*)this->dts->seq);
free(this->dts);
}
TemporaryStorageArray<int32, 0x110> _temp_store;
static inline uint32 GetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
{
/* First handle variables common with Action7/9/D */
uint32 value;
if (GetGlobalVariable(variable, &value)) return value;
/* Non-common variable */
switch (variable) {
case 0x0C: return object->callback;
case 0x10: return object->callback_param1;
case 0x18: return object->callback_param2;
case 0x1C: return object->last_value;
case 0x5F: return (object->GetRandomBits(object) << 8) | object->GetTriggers(object);
case 0x7D: return _temp_store.Get(parameter);
case 0x7F:
if (object == NULL || object->grffile == NULL) return 0;
return object->grffile->GetParam(parameter);
/* Not a common variable, so evalute the feature specific variables */
default: return object->GetVariable(object, variable, parameter, available);
}
}
/**
* Rotate val rot times to the right
* @param val the value to rotate
* @param rot the amount of times to rotate
* @return the rotated value
*/
static uint32 RotateRight(uint32 val, uint32 rot)
{
/* Do not rotate more than necessary */
rot %= 32;
return (val >> rot) | (val << (32 - rot));
}
/* Evaluate an adjustment for a variable of the given size.
* U is the unsigned type and S is the signed type to use. */
template <typename U, typename S>
static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, ResolverObject *object, U last_value, uint32 value)
{
value >>= adjust->shift_num;
value &= adjust->and_mask;
if (adjust->type != DSGA_TYPE_NONE) value += (S)adjust->add_val;
switch (adjust->type) {
case DSGA_TYPE_DIV: value /= (S)adjust->divmod_val; break;
case DSGA_TYPE_MOD: value %= (U)adjust->divmod_val; break;
case DSGA_TYPE_NONE: break;
}
switch (adjust->operation) {
case DSGA_OP_ADD: return last_value + value;
case DSGA_OP_SUB: return last_value - value;
case DSGA_OP_SMIN: return min((S)last_value, (S)value);
case DSGA_OP_SMAX: return max((S)last_value, (S)value);
case DSGA_OP_UMIN: return min((U)last_value, (U)value);
case DSGA_OP_UMAX: return max((U)last_value, (U)value);
case DSGA_OP_SDIV: return value == 0 ? (S)last_value : (S)last_value / (S)value;
case DSGA_OP_SMOD: return value == 0 ? (S)last_value : (S)last_value % (S)value;
case DSGA_OP_UDIV: return value == 0 ? (U)last_value : (U)last_value / (U)value;
case DSGA_OP_UMOD: return value == 0 ? (U)last_value : (U)last_value % (U)value;
case DSGA_OP_MUL: return last_value * value;
case DSGA_OP_AND: return last_value & value;
case DSGA_OP_OR: return last_value | value;
case DSGA_OP_XOR: return last_value ^ value;
case DSGA_OP_STO: _temp_store.Store((U)value, (S)last_value); return last_value;
case DSGA_OP_RST: return value;
case DSGA_OP_STOP: if (object->psa != NULL) object->psa->Store((U)value, (S)last_value); return last_value;
case DSGA_OP_ROR: return RotateRight(last_value, value);
case DSGA_OP_SCMP: return ((S)last_value == (S)value) ? 1 : ((S)last_value < (S)value ? 0 : 2);
case DSGA_OP_UCMP: return ((U)last_value == (U)value) ? 1 : ((U)last_value < (U)value ? 0 : 2);
case DSGA_OP_SHL: return (U)last_value << ((U)value & 0x1F); // mask 'value' to 5 bits, which should behave the same on all architectures.
case DSGA_OP_SHR: return (U)last_value >> ((U)value & 0x1F);
case DSGA_OP_SAR: return (S)last_value >> ((U)value & 0x1F);
default: return value;
}
}
const SpriteGroup *DeterministicSpriteGroup::Resolve(ResolverObject *object) const
{
uint32 last_value = 0;
uint32 value = 0;
uint i;
object->scope = this->var_scope;
for (i = 0; i < this->num_adjusts; i++) {
DeterministicSpriteGroupAdjust *adjust = &this->adjusts[i];
/* Try to get the variable. We shall assume it is available, unless told otherwise. */
bool available = true;
if (adjust->variable == 0x7E) {
const SpriteGroup *subgroup = SpriteGroup::Resolve(adjust->subroutine, object);
if (subgroup == NULL) {
value = CALLBACK_FAILED;
} else {
value = subgroup->GetCallbackResult();
}
/* Reset values to current scope.
* Note: 'last_value' and 'reseed' are shared between the main chain and the procedure */
object->scope = this->var_scope;
} else {
value = GetVariable(object, adjust->variable, adjust->parameter, &available);
}
if (!available) {
/* Unsupported variable: skip further processing and return either
* the group from the first range or the default group. */
return SpriteGroup::Resolve(this->num_ranges > 0 ? this->ranges[0].group : this->default_group, object);
}
switch (this->size) {
case DSG_SIZE_BYTE: value = EvalAdjustT<uint8, int8> (adjust, object, last_value, value); break;
case DSG_SIZE_WORD: value = EvalAdjustT<uint16, int16>(adjust, object, last_value, value); break;
case DSG_SIZE_DWORD: value = EvalAdjustT<uint32, int32>(adjust, object, last_value, value); break;
default: NOT_REACHED();
}
last_value = value;
}
object->last_value = last_value;
if (this->num_ranges == 0) {
/* nvar == 0 is a special case -- we turn our value into a callback result */
if (value != CALLBACK_FAILED) value = GB(value, 0, 15);
static CallbackResultSpriteGroup nvarzero(0);
nvarzero.result = value;
return &nvarzero;
}
for (i = 0; i < this->num_ranges; i++) {
if (this->ranges[i].low <= value && value <= this->ranges[i].high) {
return SpriteGroup::Resolve(this->ranges[i].group, object);
}
}
return SpriteGroup::Resolve(this->default_group, object);
}
const SpriteGroup *RandomizedSpriteGroup::Resolve(ResolverObject *object) const
{
uint32 mask;
byte index;
object->scope = this->var_scope;
object->count = this->count;
if (object->trigger != 0) {
/* Handle triggers */
/* Magic code that may or may not do the right things... */
byte waiting_triggers = object->GetTriggers(object);
byte match = this->triggers & (waiting_triggers | object->trigger);
bool res = (this->cmp_mode == RSG_CMP_ANY) ? (match != 0) : (match == this->triggers);
if (res) {
waiting_triggers &= ~match;
object->reseed |= (this->num_groups - 1) << this->lowest_randbit;
} else {
waiting_triggers |= object->trigger;
}
object->SetTriggers(object, waiting_triggers);
}
mask = (this->num_groups - 1) << this->lowest_randbit;
index = (object->GetRandomBits(object) & mask) >> this->lowest_randbit;
return SpriteGroup::Resolve(this->groups[index], object);
}
const SpriteGroup *RealSpriteGroup::Resolve(ResolverObject *object) const
{
return object->ResolveReal(object, this);
}
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