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
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
#include "UnityPrefix.h"
#include "StreamedClipBuilder.h"
#include "Runtime/Utilities/dynamic_array.h"
#include "Runtime/mecanim/memory.h"
struct BuildCurveKey
{
float time;
int curveIndex;
float coeff[4];
friend bool operator < (const BuildCurveKey& lhs, const BuildCurveKey& rhs)
{
// Sort by time primarily
if (lhs.time != rhs.time)
return lhs.time < rhs.time;
// for same time, Sort by curve index. This reduces cache trashing when sampling the clip
else
return lhs.curveIndex < rhs.curveIndex;
}
};
struct StreamedClipBuilder
{
StreamedClipBuilder(): allKeys(kMemTempAlloc) {}
dynamic_array<BuildCurveKey> allKeys;
int curveCount;
};
StreamedClipBuilder* CreateStreamedClipBuilder(UInt32 curveCount, UInt32 keyCount)
{
StreamedClipBuilder* builder = UNITY_NEW(StreamedClipBuilder, kMemTempAlloc);
builder->allKeys.reserve(keyCount);
builder->curveCount = curveCount;
return builder;
}
void DestroyStreamedClipBuilder(StreamedClipBuilder* builder)
{
UNITY_DELETE(builder, kMemTempAlloc);
}
template<typename T>
void ConvertCacheToBuildKeys(typename AnimationCurveTpl<T>::Cache& cache, int curveIndex, StreamedClipBuilder* builder)
{
int elements = sizeof(T)/sizeof(float);
//Loop over number of floats in curveType
for(int e = 0; e < elements; e++)
{
BuildCurveKey& key = builder->allKeys.push_back();
key.time = cache.time;
key.curveIndex = curveIndex+e;
key.coeff[0] = cache.coeff[0][e];
key.coeff[1] = cache.coeff[1][e];
key.coeff[2] = cache.coeff[2][e];
key.coeff[3] = cache.coeff[3][e];
}
}
template<>
void ConvertCacheToBuildKeys<float>(AnimationCurveTpl<float>::Cache& cache, int curveIndex, StreamedClipBuilder* builder)
{
BuildCurveKey& key = builder->allKeys.push_back();
key.time = cache.time;
key.curveIndex = curveIndex;
key.coeff[0] = cache.coeff[0];
key.coeff[1] = cache.coeff[1];
key.coeff[2] = cache.coeff[2];
key.coeff[3] = cache.coeff[3];
}
const float kFirstClampKeyframe = -FLT_MAX;
template<class T>
void AddCurveToStreamedClip(StreamedClipBuilder* builder, int curveIndex, const AnimationCurveTpl<T>& curve)
{
for(int k = -1; k < curve.GetKeyCount(); k++)
{
typename AnimationCurveTpl<T>::Cache cache;
// Last key needs to be specifically prepared as a constant value
// Use clamp cache function to get same functionaliy as AnimationCurve.EvaluateClamp
if (k == curve.GetKeyCount()-1)
{
cache.time = curve.GetKey(k).time;
cache.coeff[0] = cache.coeff[1] = cache.coeff[2] = Zero<T>();
cache.coeff[3] = curve.GetKey(k).value;
}
// A special first key needs to be created so that all values can be sampled before their first keyframe.
else if (k == -1)
{
// We already have a key at the first firstClampKeyframe no need to duplicate it.
if (kFirstClampKeyframe == curve.GetKey(0).time)
continue;
cache.time = kFirstClampKeyframe;
cache.coeff[0] = cache.coeff[1] = cache.coeff[2] = Zero<T>();
cache.coeff[3] = curve.GetKey(0).value;
}
// Use CalculateCacheData for all normal curve segements
else
curve.CalculateCacheData(cache, k, k+1, 0.0F);
ConvertCacheToBuildKeys<T>(cache, curveIndex, builder);
}
}
void AddIntegerCurveToStreamedClip(StreamedClipBuilder* builder, int curveIndex, float* time, int* value, int count)
{
for (int k = 0; k < count; ++k)
{
AnimationCurveTpl<float>::Cache cache;
// Last key needs to be specifically prepared as a constant value
// Use clamp cache function to get same functionaliy as AnimationCurve.EvaluateClamp
cache.time = (k == 0) ? kFirstClampKeyframe : time[k];
cache.coeff[0] = cache.coeff[1] = cache.coeff[2] = 0.0f;
cache.coeff[3] = value[k];
ConvertCacheToBuildKeys<float>(cache, curveIndex, builder);
}
}
template void AddCurveToStreamedClip<float>(StreamedClipBuilder* builder, int curveIndex, const AnimationCurveTpl<float>& curve);
template void AddCurveToStreamedClip<Vector3f>(StreamedClipBuilder* builder, int curveIndex, const AnimationCurveTpl<Vector3f>& curve);
template void AddCurveToStreamedClip<Quaternionf>(StreamedClipBuilder* builder, int curveIndex, const AnimationCurveTpl<Quaternionf>& curve);
template<class T>
T& PushData (dynamic_array<UInt8>& output)
{
output.resize_uninitialized(output.size() + sizeof(T));
return *reinterpret_cast<T*> (&output[output.size() - sizeof(T)]);
}
void CreateStreamClipConstant (StreamedClipBuilder* builder, mecanim::animation::StreamedClip& clip, mecanim::memory::Allocator& alloc)
{
Assert(clip.curveCount == 0);
Assert(clip.data.IsNull());
std::sort(builder->allKeys.begin(), builder->allKeys.end());
dynamic_array<UInt8> streamData;
streamData.reserve((builder->allKeys.size()+1) * (sizeof(mecanim::animation::CurveKey) + sizeof(mecanim::animation::CurveTimeData)));
// Generate the curvedata stream
float currentTime = -std::numeric_limits<float>::infinity();
for (int i=0;i<builder->allKeys.size();)
{
currentTime = builder->allKeys[i].time;
mecanim::animation::CurveTimeData& timeData = PushData<mecanim::animation::CurveTimeData> (streamData);
timeData.time = currentTime;
int count = 0;
while (i < builder->allKeys.size() && builder->allKeys[i].time == currentTime)
{
mecanim::animation::CurveKey& curveKey = PushData<mecanim::animation::CurveKey>(streamData);
curveKey.curveIndex = builder->allKeys[i].curveIndex;
memcpy(curveKey.coeff, builder->allKeys[i].coeff, sizeof(curveKey.coeff));
i++;
count++;
}
timeData.count = count;
}
// Make sure that we do not sample beyond the last actual key by adding an infinity key.
mecanim::animation::CurveTimeData& timeData = PushData<mecanim::animation::CurveTimeData> (streamData);
timeData.time = std::numeric_limits<float>::infinity();
timeData.count = 0;
clip.dataSize = streamData.size() / sizeof(mecanim::uint32_t);
clip.data = alloc.ConstructArray<mecanim::uint32_t> (clip.dataSize);
memcpy(clip.data.Get(), streamData.begin(), streamData.size());
clip.curveCount = builder->curveCount;
}
#if ENABLE_UNIT_TESTS
#include "External/UnitTest++/src/UnitTest++.h"
typedef AnimationCurve::Keyframe Keyframe;
static float Evaluate0 (const mecanim::animation::StreamedClip& clip, mecanim::animation::StreamedClipMemory& memory, float time)
{
float output;
SampleClip(clip, memory, time, &output);
return output;
}
typedef AnimationCurveVec3::Keyframe KeyframeVec3;
static Vector3f Evaluate3 (const mecanim::animation::StreamedClip& clip, mecanim::animation::StreamedClipMemory& memory, float time)
{
Vector3f output;
SampleClip(clip, memory, time, reinterpret_cast<float*>(&output));
return output;
}
SUITE (StreamedClipBuilderTests)
{
TEST (StreamedClipBuilder_StreamedClipEvaluation)
{
mecanim::memory::MecanimAllocator alloc(kMemTempAlloc);
AnimationCurve curve;
curve.AddKeyBackFast(Keyframe(0.5F, 0.0F));
curve.AddKeyBackFast(Keyframe(1.0F, 1.0F));
curve.AddKeyBackFast(Keyframe(2.0F, -1.0F));
StreamedClipBuilder* builder = CreateStreamedClipBuilder(1, curve.GetKeyCount());
AddCurveToStreamedClip(builder, 0, curve);
mecanim::animation::StreamedClip streamclip;
CreateStreamClipConstant (builder, streamclip, alloc);
mecanim::animation::StreamedClipMemory memory;
CreateStreamedClipMemory(streamclip, memory, alloc);
CHECK_EQUAL(curve.EvaluateClamp(-5.0), Evaluate0(streamclip, memory, -5.0F));
CHECK_EQUAL(curve.EvaluateClamp(1.0F), Evaluate0(streamclip, memory, 1.0F));
CHECK_EQUAL(curve.EvaluateClamp(0.0F), Evaluate0(streamclip, memory, 0.0F));
CHECK_EQUAL(curve.EvaluateClamp(1.5F), Evaluate0(streamclip, memory, 1.5F));
CHECK_EQUAL(curve.EvaluateClamp(2.0F), Evaluate0(streamclip, memory, 2.0F));
CHECK_EQUAL(curve.EvaluateClamp(0.1F), Evaluate0(streamclip, memory, 0.1F));
CHECK_EQUAL(curve.EvaluateClamp(100.0F), Evaluate0(streamclip, memory, 100.0F));
CHECK_EQUAL(curve.EvaluateClamp(-19), Evaluate0(streamclip, memory, -19.0F));
DestroyStreamedClipMemory (memory, alloc);
DestroyStreamedClip (streamclip, alloc);
DestroyStreamedClipBuilder (builder);
}
TEST (StreamedClipEvaluationVector3)
{
mecanim::memory::MecanimAllocator alloc(kMemTempAlloc);
AnimationCurveVec3 curve;
curve.AddKeyBackFast(KeyframeVec3(0.5F, Vector3f(0.0,1.0,2.0)));
curve.AddKeyBackFast(KeyframeVec3(1.0F, Vector3f(3.0,0.0,4.0)));
curve.AddKeyBackFast(KeyframeVec3(2.0F, Vector3f(0.0,-1.0,-2.0)));
StreamedClipBuilder* builder = CreateStreamedClipBuilder(3, curve.GetKeyCount()*3);
AddCurveToStreamedClip(builder, 0, curve);
mecanim::animation::StreamedClip streamclip;
CreateStreamClipConstant (builder, streamclip, alloc);
mecanim::animation::StreamedClipMemory memory;
CreateStreamedClipMemory(streamclip, memory, alloc);
CHECK(curve.EvaluateClamp(-5.0) == Evaluate3(streamclip, memory, -5.0F));
CHECK(curve.EvaluateClamp(1.0F) == Evaluate3(streamclip, memory, 1.0F));
CHECK(curve.EvaluateClamp(0.0F) == Evaluate3(streamclip, memory, 0.0F));
CHECK(curve.EvaluateClamp(1.5F) == Evaluate3(streamclip, memory, 1.5F));
CHECK(curve.EvaluateClamp(2.0F) == Evaluate3(streamclip, memory, 2.0F));
CHECK(curve.EvaluateClamp(0.1F) == Evaluate3(streamclip, memory, 0.1F));
CHECK(curve.EvaluateClamp(100.0F) == Evaluate3(streamclip, memory, 100.0F));
CHECK(curve.EvaluateClamp(-19) == Evaluate3(streamclip, memory, -19.0F));
DestroyStreamedClipMemory (memory, alloc);
DestroyStreamedClip (streamclip, alloc);
DestroyStreamedClipBuilder (builder);
}
}
#endif
|
