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author | KUDr <KUDr@openttd.org> | 2007-01-10 18:12:09 +0000 |
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committer | KUDr <KUDr@openttd.org> | 2007-01-10 18:12:09 +0000 |
commit | 07c30785ab226c4762b442f5a09ec745017cc94b (patch) | |
tree | d9abc3d9810159441bed9f82a52bd1ee52d770dd /src/newgrf_spritegroup.c | |
parent | dc44d341075a525d6069bfbf935efe75ac7ff0f0 (diff) | |
download | openttd-07c30785ab226c4762b442f5a09ec745017cc94b.tar.xz |
(svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
Diffstat (limited to 'src/newgrf_spritegroup.c')
-rw-r--r-- | src/newgrf_spritegroup.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/src/newgrf_spritegroup.c b/src/newgrf_spritegroup.c deleted file mode 100644 index f97da9c90..000000000 --- a/src/newgrf_spritegroup.c +++ /dev/null @@ -1,233 +0,0 @@ -/* $Id$ */ - -#include "stdafx.h" -#include "openttd.h" -#include "variables.h" -#include "macros.h" -#include "oldpool.h" -#include "newgrf_spritegroup.h" -#include "date.h" - -static void SpriteGroupPoolCleanBlock(uint start_item, uint end_item); - -static uint _spritegroup_count = 0; -STATIC_OLD_POOL(SpriteGroup, SpriteGroup, 9, 250, NULL, SpriteGroupPoolCleanBlock) - -static void DestroySpriteGroup(SpriteGroup *group) -{ - /* Free dynamically allocated memory */ - /* XXX Cast away the consts due to MSVC being buggy... */ - switch (group->type) { - case SGT_REAL: - free((SpriteGroup**)group->g.real.loaded); - free((SpriteGroup**)group->g.real.loading); - break; - - case SGT_DETERMINISTIC: - free(group->g.determ.adjusts); - free(group->g.determ.ranges); - break; - - case SGT_RANDOMIZED: - free((SpriteGroup**)group->g.random.groups); - break; - - default: - break; - } -} - -static void SpriteGroupPoolCleanBlock(uint start_item, uint end_item) -{ - uint i; - - for (i = start_item; i <= end_item; i++) { - DestroySpriteGroup(GetSpriteGroup(i)); - } -} - - -/* Allocate a new SpriteGroup */ -SpriteGroup *AllocateSpriteGroup(void) -{ - /* This is totally different to the other pool allocators, as we never remove an item from the pool. */ - if (_spritegroup_count == GetSpriteGroupPoolSize()) { - if (!AddBlockToPool(&_SpriteGroup_pool)) return NULL; - } - - return GetSpriteGroup(_spritegroup_count++); -} - - -void InitializeSpriteGroupPool(void) -{ - CleanPool(&_SpriteGroup_pool); - - _spritegroup_count = 0; -} - - -static inline uint32 GetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) -{ - /* Return common variables */ - switch (variable) { - case 0x00: return max(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0); - case 0x01: return clamp(_cur_year, ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR) - ORIGINAL_BASE_YEAR; - case 0x02: return _cur_month; - case 0x03: return _opt.landscape; - case 0x09: return _date_fract; - case 0x0A: return _tick_counter; - case 0x0C: return object->callback; - case 0x10: return object->callback_param1; - case 0x11: return 0; - case 0x18: return object->callback_param2; - case 0x1A: return -1; - case 0x1B: return GB(_display_opt, 0, 6); - case 0x1C: return object->last_value; - case 0x20: return _opt.landscape == LT_HILLY ? _opt.snow_line : 0xFF; - - /* Not a common variable, so evalute the feature specific variables */ - default: return object->GetVariable(object, variable, parameter, available); - } -} - - -/* Evaluate an adjustment for a variable of the given size. This is a bit of - * an unwieldy macro, but it saves triplicating the code. */ -#define BUILD_EVAL_ADJUST(size, usize) \ -static inline usize EvalAdjust_ ## size(const DeterministicSpriteGroupAdjust *adjust, usize last_value, int32 value) \ -{ \ - value >>= adjust->shift_num; \ - value &= adjust->and_mask; \ -\ - if (adjust->type != DSGA_TYPE_NONE) value += (size)adjust->add_val; \ -\ - switch (adjust->type) { \ - case DSGA_TYPE_DIV: value /= (size)adjust->divmod_val; break; \ - case DSGA_TYPE_MOD: value %= (usize)adjust->divmod_val; break; \ - case DSGA_TYPE_NONE: break; \ - } \ -\ - /* Get our value to the correct range */ \ - value = (usize)value; \ -\ - 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(last_value, value); \ - case DSGA_OP_SMAX: return max(last_value, value); \ - case DSGA_OP_UMIN: return min((usize)last_value, (usize)value); \ - case DSGA_OP_UMAX: return max((usize)last_value, (usize)value); \ - case DSGA_OP_SDIV: return last_value / value; \ - case DSGA_OP_SMOD: return last_value % value; \ - case DSGA_OP_UDIV: return (usize)last_value / (usize)value; \ - case DSGA_OP_UMOD: return (usize)last_value % (usize)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; \ - default: return value; \ - } \ -} - - -BUILD_EVAL_ADJUST(int8, uint8) -BUILD_EVAL_ADJUST(int16, uint16) -BUILD_EVAL_ADJUST(int32, uint32) - - -static inline const SpriteGroup *ResolveVariable(const SpriteGroup *group, ResolverObject *object) -{ - static SpriteGroup nvarzero; - int32 last_value = object->last_value; - int32 value = -1; - uint i; - - object->scope = group->g.determ.var_scope; - - for (i = 0; i < group->g.determ.num_adjusts; i++) { - DeterministicSpriteGroupAdjust *adjust = &group->g.determ.adjusts[i]; - - /* Try to get the variable. We shall assume it is available, unless told otherwise. */ - bool available = true; - value = GetVariable(object, adjust->variable, adjust->parameter, &available); - - if (!available) { - /* Unsupported property: skip further processing and return either - * the group from the first range or the default group. */ - return Resolve(group->g.determ.num_ranges > 0 ? group->g.determ.ranges[0].group : group->g.determ.default_group, object); - } - - switch (group->g.determ.size) { - case DSG_SIZE_BYTE: value = EvalAdjust_int8(adjust, last_value, value); break; - case DSG_SIZE_WORD: value = EvalAdjust_int16(adjust, last_value, value); break; - case DSG_SIZE_DWORD: value = EvalAdjust_int32(adjust, last_value, value); break; - default: NOT_REACHED(); break; - } - last_value = value; - } - - if (group->g.determ.num_ranges == 0) { - /* nvar == 0 is a special case -- we turn our value into a callback result */ - nvarzero.type = SGT_CALLBACK; - nvarzero.g.callback.result = GB(value, 0, 15); - return &nvarzero; - } - - for (i = 0; i < group->g.determ.num_ranges; i++) { - if (group->g.determ.ranges[i].low <= (uint32)value && (uint32)value <= group->g.determ.ranges[i].high) { - return Resolve(group->g.determ.ranges[i].group, object); - } - } - - return Resolve(group->g.determ.default_group, object); -} - - -static inline const SpriteGroup *ResolveRandom(const SpriteGroup *group, ResolverObject *object) -{ - uint32 mask; - byte index; - - object->scope = group->g.random.var_scope; - - 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 = group->g.random.triggers & (waiting_triggers | object->trigger); - bool res; - - res = (group->g.random.cmp_mode == RSG_CMP_ANY) ? - (match != 0) : (match == group->g.random.triggers); - - if (res) { - waiting_triggers &= ~match; - object->reseed |= (group->g.random.num_groups - 1) << group->g.random.lowest_randbit; - } else { - waiting_triggers |= object->trigger; - } - - object->SetTriggers(object, waiting_triggers); - } - - mask = (group->g.random.num_groups - 1) << group->g.random.lowest_randbit; - index = (object->GetRandomBits(object) & mask) >> group->g.random.lowest_randbit; - - return Resolve(group->g.random.groups[index], object); -} - - -/* ResolverObject (re)entry point */ -const SpriteGroup *Resolve(const SpriteGroup *group, ResolverObject *object) -{ - /* We're called even if there is no group, so quietly return nothing */ - if (group == NULL) return NULL; - - switch (group->type) { - case SGT_REAL: return object->ResolveReal(object, group); - case SGT_DETERMINISTIC: return ResolveVariable(group, object); - case SGT_RANDOMIZED: return ResolveRandom(group, object); - default: return group; - } -} |