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color_cast.hh
1 /* ========================================================================= *
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5 * Department of Computer Graphics and Multimedia *
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40 * ========================================================================= */
41
42 /*===========================================================================*\
43 * *
44 * $Revision: 1258 $ *
45 * $Date: 2015-04-28 15:07:46 +0200 (Di, 28 Apr 2015) $ *
46 * *
47 \*===========================================================================*/
48
49
50 //=============================================================================
51 //
52 // Helper Functions for binary reading / writing
53 //
54 //=============================================================================
55
56
57 #ifndef OPENMESH_COLOR_CAST_HH
58 #define OPENMESH_COLOR_CAST_HH
59
60
61 //== INCLUDES =================================================================
62
63
64 #include <OpenMesh/Core/System/config.h>
65 #include <OpenMesh/Core/Utils/vector_cast.hh>
66
67 //== NAMESPACES ===============================================================
68
69
70 namespace OpenMesh {
71
72
73 //=============================================================================
74
75
79
80 //-----------------------------------------------------------------------------
81 #ifndef DOXY_IGNORE_THIS
82
84 template <typename dst_t, typename src_t>
85 struct color_caster
86 {
87 typedef dst_t return_type;
88
89 inline static return_type cast(const src_t& _src)
90 {
91 dst_t dst;
92 vector_cast(_src, dst, GenProg::Int2Type<vector_traits<dst_t>::size_>());
93 return dst;
94 }
95 };
96
97
98 template <>
99 struct color_caster<Vec3uc,Vec3f>
100 {
101 typedef Vec3uc return_type;
102
103 inline static return_type cast(const Vec3f& _src)
104 {
105 return Vec3uc( (unsigned char)(_src[0]* 255.0f + 0.5f),
106 (unsigned char)(_src[1]* 255.0f + 0.5f),
107 (unsigned char)(_src[2]* 255.0f + 0.5f) );
108 }
109 };
110
111 template <>
112 struct color_caster<Vec3uc,Vec4f>
113 {
114 typedef Vec3uc return_type;
115
116 inline static return_type cast(const Vec4f& _src)
117 {
118 return Vec3uc( (unsigned char)(_src[0]* 255.0f + 0.5f),
119 (unsigned char)(_src[1]* 255.0f + 0.5f),
120 (unsigned char)(_src[2]* 255.0f + 0.5f) );
121 }
122 };
123
124 template <>
125 struct color_caster<Vec3i,Vec3f>
126 {
127 typedef Vec3i return_type;
128
129 inline static return_type cast(const Vec3f& _src)
130 {
131 return Vec3i( (int)(_src[0]* 255.0f + 0.5f),
132 (int)(_src[1]* 255.0f + 0.5f),
133 (int)(_src[2]* 255.0f + 0.5f) );
134 }
135 };
136
137 template <>
138 struct color_caster<Vec3i,Vec4f>
139 {
140 typedef Vec3i return_type;
141
142 inline static return_type cast(const Vec4f& _src)
143 {
144 return Vec3i( (int)(_src[0]* 255.0f + 0.5f),
145 (int)(_src[1]* 255.0f + 0.5f),
146 (int)(_src[2]* 255.0f + 0.5f) );
147 }
148 };
149
150 template <>
151 struct color_caster<Vec4i,Vec4f>
152 {
153 typedef Vec4i return_type;
154
155 inline static return_type cast(const Vec4f& _src)
156 {
157 return Vec4i( (int)(_src[0]* 255.0f + 0.5f),
158 (int)(_src[1]* 255.0f + 0.5f),
159 (int)(_src[2]* 255.0f + 0.5f),
160 (int)(_src[3]* 255.0f + 0.5f) );
161 }
162 };
163
164 template <>
165 struct color_caster<Vec3ui,Vec3f>
166 {
167 typedef Vec3ui return_type;
168
169 inline static return_type cast(const Vec3f& _src)
170 {
171 return Vec3ui( (unsigned int)(_src[0]* 255.0f + 0.5f),
172 (unsigned int)(_src[1]* 255.0f + 0.5f),
173 (unsigned int)(_src[2]* 255.0f + 0.5f) );
174 }
175 };
176
177 template <>
178 struct color_caster<Vec3ui,Vec4f>
179 {
180 typedef Vec3ui return_type;
181
182 inline static return_type cast(const Vec4f& _src)
183 {
184 return Vec3ui( (unsigned int)(_src[0]* 255.0f + 0.5f),
185 (unsigned int)(_src[1]* 255.0f + 0.5f),
186 (unsigned int)(_src[2]* 255.0f + 0.5f) );
187 }
188 };
189
190 template <>
191 struct color_caster<Vec4ui,Vec4f>
192 {
193 typedef Vec4ui return_type;
194
195 inline static return_type cast(const Vec4f& _src)
196 {
197 return Vec4ui( (unsigned int)(_src[0]* 255.0f + 0.5f),
198 (unsigned int)(_src[1]* 255.0f + 0.5f),
199 (unsigned int)(_src[2]* 255.0f + 0.5f),
200 (unsigned int)(_src[3]* 255.0f + 0.5f) );
201 }
202 };
203
204 template <>
205 struct color_caster<Vec4uc,Vec3f>
206 {
207 typedef Vec4uc return_type;
208
209 inline static return_type cast(const Vec3f& _src)
210 {
211 return Vec4uc( (unsigned char)(_src[0]* 255.0f + 0.5f),
212 (unsigned char)(_src[1]* 255.0f + 0.5f),
213 (unsigned char)(_src[2]* 255.0f + 0.5f),
214 (unsigned char)(255) );
215 }
216 };
217
218 template <>
219 struct color_caster<Vec4f,Vec3f>
220 {
221 typedef Vec4f return_type;
222
223 inline static return_type cast(const Vec3f& _src)
224 {
225 return Vec4f( _src[0],
226 _src[1],
227 _src[2],
228 1.0f );
229 }
230 };
231
232 template <>
233 struct color_caster<Vec4ui,Vec3uc>
234 {
235 typedef Vec4ui return_type;
236
237 inline static return_type cast(const Vec3uc& _src)
238 {
239 return Vec4ui(_src[0],
240 _src[1],
241 _src[2],
242 255 );
243 }
244 };
245
246 template <>
247 struct color_caster<Vec4f,Vec3i>
248 {
249 typedef Vec4f return_type;
250
251 inline static return_type cast(const Vec3i& _src)
252 {
253 const float f = 1.0f / 255.0f;
254 return Vec4f(_src[0]*f, _src[1]*f, _src[2]*f, 1.0f );
255 }
256 };
257
258 template <>
259 struct color_caster<Vec4uc,Vec4f>
260 {
261 typedef Vec4uc return_type;
262
263 inline static return_type cast(const Vec4f& _src)
264 {
265 return Vec4uc( (unsigned char)(_src[0]* 255.0f + 0.5f),
266 (unsigned char)(_src[1]* 255.0f + 0.5f),
267 (unsigned char)(_src[2]* 255.0f + 0.5f),
268 (unsigned char)(_src[3]* 255.0f + 0.5f) );
269 }
270 };
271
272 template <>
273 struct color_caster<Vec4f,Vec4i>
274 {
275 typedef Vec4f return_type;
276
277 inline static return_type cast(const Vec4i& _src)
278 {
279 const float f = 1.0f / 255.0f;
280 return Vec4f( _src[0] * f, _src[1] * f, _src[2] * f , _src[3] * f );
281 }
282 };
283
284 template <>
285 struct color_caster<Vec4uc,Vec3uc>
286 {
287 typedef Vec4uc return_type;
288
289 inline static return_type cast(const Vec3uc& _src)
290 {
291 return Vec4uc( _src[0], _src[1], _src[2], 255 );
292 }
293 };
294
295 template <>
296 struct color_caster<Vec3f, Vec3uc>
297 {
298 typedef Vec3f return_type;
299
300 inline static return_type cast(const Vec3uc& _src)
301 {
302 const float f = 1.0f / 255.0f;
303 return Vec3f(_src[0] * f, _src[1] * f, _src[2] * f );
304 }
305 };
306
307 template <>
308 struct color_caster<Vec3f, Vec4uc>
309 {
310 typedef Vec3f return_type;
311
312 inline static return_type cast(const Vec4uc& _src)
313 {
314 const float f = 1.0f / 255.0f;
315 return Vec3f(_src[0] * f, _src[1] * f, _src[2] * f );
316 }
317 };
318
319 template <>
320 struct color_caster<Vec4f, Vec3uc>
321 {
322 typedef Vec4f return_type;
323
324 inline static return_type cast(const Vec3uc& _src)
325 {
326 const float f = 1.0f / 255.0f;
327 return Vec4f(_src[0] * f, _src[1] * f, _src[2] * f, 1.0f );
328 }
329 };
330
331 template <>
332 struct color_caster<Vec4f, Vec4uc>
333 {
334 typedef Vec4f return_type;
335
336 inline static return_type cast(const Vec4uc& _src)
337 {
338 const float f = 1.0f / 255.0f;
339 return Vec4f(_src[0] * f, _src[1] * f, _src[2] * f, _src[3] * f );
340 }
341 };
342
343 // ----------------------------------------------------------------------------
344
345
346 #ifndef DOXY_IGNORE_THIS
347
348 #if !defined(OM_CC_MSVC)
349 template <typename dst_t>
350 struct color_caster<dst_t,dst_t>
351 {
352 typedef const dst_t& return_type;
353
354 inline static return_type cast(const dst_t& _src)
355 {
356 return _src;
357 }
358 };
359 #endif
360
361 #endif
362
363 //-----------------------------------------------------------------------------
364
365
366 template <typename dst_t, typename src_t>
367 inline
368 typename color_caster<dst_t, src_t>::return_type
369 color_cast(const src_t& _src )
370 {
371 return color_caster<dst_t, src_t>::cast(_src);
372 }
373
374 #endif
375 //-----------------------------------------------------------------------------
376
378
379
380 //=============================================================================
381 } // namespace OpenMesh
382 //=============================================================================
383 #endif // OPENMESH_COLOR_CAST_HH defined
384 //=============================================================================
385
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::vector_cast
void vector_cast(const src_t &_src, dst_t &_dst, GenProg::Int2Type< n >)
Cast vector type to another vector type by copying the vector elements.
Definition: vector_cast.hh:86