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Location: cpp/openttd-patchpack/source/sprite.c
r3198:2fd76a5c7026
3.9 KiB
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(svn r3865) -Add: a fully optional configure script, that is a wrapper around
Makefile.config, inserting data directly into it. This is needed for the
CompileFarm (nightly) and most likely it will help out many people who want
to cross-compile. I might have missed several options out of the
Makefile.config, but those are the needed ones for the CompileFarm.
Makefile.config, inserting data directly into it. This is needed for the
CompileFarm (nightly) and most likely it will help out many people who want
to cross-compile. I might have missed several options out of the
Makefile.config, but those are the needed ones for the CompileFarm.
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 | /* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "sprite.h"
#include "variables.h"
#include "debug.h"
SpriteGroup *EvalDeterministicSpriteGroup(const DeterministicSpriteGroup *dsg, int value)
{
int i;
value >>= dsg->shift_num; // This should bring us to the byte range.
value &= dsg->and_mask;
if (dsg->operation != DSG_OP_NONE)
value += (signed char) dsg->add_val;
switch (dsg->operation) {
case DSG_OP_DIV:
value /= (signed char) dsg->divmod_val;
break;
case DSG_OP_MOD:
value %= (signed char) dsg->divmod_val;
break;
case DSG_OP_NONE:
break;
}
for (i = 0; i < dsg->num_ranges; i++) {
DeterministicSpriteGroupRange *range = &dsg->ranges[i];
if (range->low <= value && value <= range->high)
return range->group;
}
return dsg->default_group;
}
int GetDeterministicSpriteValue(byte var)
{
switch (var) {
case 0x00:
return _date;
case 0x01:
return _cur_year;
case 0x02:
return _cur_month;
case 0x03:
return _opt.landscape;
case 0x09:
return _date_fract;
case 0x0A:
return _tick_counter;
case 0x0C:
/* If we got here, it means there was no callback or
* callbacks aren't supported on our callpath. */
return 0;
default:
return -1;
}
}
SpriteGroup *EvalRandomizedSpriteGroup(const RandomizedSpriteGroup *rsg, byte random_bits)
{
byte mask;
byte index;
/* Noone likes mangling with bits, but you don't get around it here.
* Sorry. --pasky */
// rsg->num_groups is always power of 2
mask = (rsg->num_groups - 1) << rsg->lowest_randbit;
index = (random_bits & mask) >> rsg->lowest_randbit;
assert(index < rsg->num_groups);
return rsg->groups[index];
}
byte RandomizedSpriteGroupTriggeredBits(const RandomizedSpriteGroup *rsg,
byte triggers, byte *waiting_triggers)
{
byte match = rsg->triggers & (*waiting_triggers | triggers);
bool res;
if (rsg->cmp_mode == RSG_CMP_ANY) {
res = (match != 0);
} else { /* RSG_CMP_ALL */
res = (match == rsg->triggers);
}
if (!res) {
*waiting_triggers |= triggers;
return 0;
}
*waiting_triggers &= ~match;
return (rsg->num_groups - 1) << rsg->lowest_randbit;
}
/**
* Traverse a sprite group and release its and its child's memory.
* A group is only released if its reference count is zero.
* We pass a pointer to a pointer so that the original reference can be set to NULL.
* @param group_ptr Pointer to sprite group reference.
*/
void UnloadSpriteGroup(SpriteGroup **group_ptr)
{
SpriteGroup *group;
int i;
assert(group_ptr != NULL);
assert(*group_ptr != NULL);
group = *group_ptr;
*group_ptr = NULL; // Remove this reference.
group->ref_count--;
if (group->ref_count > 0) {
DEBUG(grf, 6)("UnloadSpriteGroup: Group at `%p' (type %d) has %d reference(s) left.", group, group->type, group->ref_count);
return; // Still some references left, so don't clear up.
}
DEBUG(grf, 6)("UnloadSpriteGroup: Releasing group at `%p'.", group);
switch (group->type) {
case SGT_REAL:
{
RealSpriteGroup *rsg = &group->g.real;
for (i = 0; i < rsg->loading_count; i++) {
if (rsg->loading[i] != NULL) UnloadSpriteGroup(&rsg->loading[i]);
}
for (i = 0; i < rsg->loaded_count; i++) {
if (rsg->loaded[i] != NULL) UnloadSpriteGroup(&rsg->loaded[i]);
}
free(group);
return;
}
case SGT_DETERMINISTIC:
{
DeterministicSpriteGroup *dsg = &group->g.determ;
for (i = 0; i < group->g.determ.num_ranges; i++) {
if (dsg->ranges[i].group != NULL) UnloadSpriteGroup(&dsg->ranges[i].group);
}
if (dsg->default_group != NULL) UnloadSpriteGroup(&dsg->default_group);
free(group->g.determ.ranges);
free(group);
return;
}
case SGT_RANDOMIZED:
{
for (i = 0; i < group->g.random.num_groups; i++) {
if (group->g.random.groups[i] != NULL) UnloadSpriteGroup(&group->g.random.groups[i]);
}
free(group->g.random.groups);
free(group);
return;
}
case SGT_CALLBACK:
case SGT_RESULT:
free(group);
return;
}
DEBUG(grf, 1)("Unable to remove unknown sprite group type `0x%x'.", group->type);
}
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