Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / neven / 8791cd1b94783503dff8104cf0d325a255e107d0 / . / Embedded / common / src / b_ImageEm / UInt8PyramidalImage.c
blob: 9b47188f80fe810b1e299ef8b5a639278cd60ace [file] [log] [blame]
The Android Open Source Project30957f52008-10-21 07:00:00 -0700[diff] [blame]1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/* ---- includes ----------------------------------------------------------- */
18
19#include "b_BasicEm/Math.h"
20#include "b_BasicEm/Functions.h"
21#include "b_ImageEm/Functions.h"
22#include "b_ImageEm/UInt8PyramidalImage.h"
23
24/* ------------------------------------------------------------------------- */
25
26/* ========================================================================= */
27/* */
28/* ---- \ghd{ auxiliary functions } ---------------------------------------- */
29/* */
30/* ========================================================================= */
31
32/* ------------------------------------------------------------------------- */
33
34/* ========================================================================= */
35/* */
36/* ---- \ghd{ constructor / destructor } ----------------------------------- */
37/* */
38/* ========================================================================= */
39
40/* ------------------------------------------------------------------------- */
41
42void bim_UInt8PyramidalImage_init( struct bbs_Context* cpA,
43 struct bim_UInt8PyramidalImage* ptrA )
44{
45 bbs_UInt8Arr_init( cpA, &ptrA->arrE );
46 ptrA->widthE = 0;
47 ptrA->heightE = 0;
48 ptrA->depthE = 0;
49 ptrA->typeE = bim_UINT8_PYRAMIDAL_IMG;
50}
51
52/* ------------------------------------------------------------------------- */
53
54void bim_UInt8PyramidalImage_exit( struct bbs_Context* cpA,
55 struct bim_UInt8PyramidalImage* ptrA )
56{
57 bbs_UInt8Arr_exit( cpA, &ptrA->arrE );
58 ptrA->widthE = 0;
59 ptrA->heightE = 0;
60 ptrA->depthE = 0;
61}
62
63/* ------------------------------------------------------------------------- */
64
65/* ========================================================================= */
66/* */
67/* ---- \ghd{ operators } -------------------------------------------------- */
68/* */
69/* ========================================================================= */
70
71/* ------------------------------------------------------------------------- */
72
73void bim_UInt8PyramidalImage_copy( struct bbs_Context* cpA,
74 struct bim_UInt8PyramidalImage* ptrA,
75 const struct bim_UInt8PyramidalImage* srcPtrA )
76{
77#ifdef DEBUG1
78 if( ptrA->arrE.allocatedSizeE < srcPtrA->arrE.allocatedSizeE )
79 {
80 bbs_ERROR0( "void bim_UInt8PyramidalImage_copy( ... ):\n"
81 "Unsufficient allocated memory in destination image" );
82 return;
83 }
84#endif
85 ptrA->widthE = srcPtrA->widthE;
86 ptrA->heightE = srcPtrA->heightE;
87 ptrA->depthE = srcPtrA->depthE;
88 bbs_UInt8Arr_copy( cpA, &ptrA->arrE, &srcPtrA->arrE );
89}
90
91/* ------------------------------------------------------------------------- */
92
93flag bim_UInt8PyramidalImage_equal( struct bbs_Context* cpA,
94 const struct bim_UInt8PyramidalImage* ptrA,
95 const struct bim_UInt8PyramidalImage* srcPtrA )
96{
97 if( ptrA->widthE != srcPtrA->widthE ) return FALSE;
98 if( ptrA->heightE != srcPtrA->heightE ) return FALSE;
99 if( ptrA->depthE != srcPtrA->depthE ) return FALSE;
100 return bbs_UInt8Arr_equal( cpA, &ptrA->arrE, &srcPtrA->arrE );
101}
102
103/* ------------------------------------------------------------------------- */
104
105/* ========================================================================= */
106/* */
107/* ---- \ghd{ query functions } -------------------------------------------- */
108/* */
109/* ========================================================================= */
110
111/* ------------------------------------------------------------------------- */
112
113uint8* bim_UInt8PyramidalImage_arrPtr( struct bbs_Context* cpA,
114 const struct bim_UInt8PyramidalImage* ptrA,
115 uint32 levelA )
116{
117 uint32 iL;
118 uint32 offsL = 0;
119 uint32 baseSizeL = ptrA->widthE * ptrA->heightE;
120
121#ifdef DEBUG2
122 if( levelA >= ptrA->depthE )
123 {
124 bbs_ERROR2( "uint8* bim_UInt8PyramidalImage_arrPtr( struct bim_UInt8PyramidalImage* ptrA, uint32 levelA ):\n"
125 "levelA = %i out of range [0,%i]", levelA, ptrA->depthE - 1 );
126 return NULL;
127 }
128#endif
129
130 for( iL = 0; iL < levelA; iL++ )
131 {
132 offsL += ( baseSizeL >> ( iL * 2 ) );
133 }
134 return ptrA->arrE.arrPtrE + offsL;
135}
136
137/* ------------------------------------------------------------------------- */
138
139uint32 bim_UInt8PyramidalImage_heapSize( struct bbs_Context* cpA,
140 const struct bim_UInt8PyramidalImage* ptrA,
141 uint32 widthA,
142 uint32 heightA,
143 uint32 depthA )
144{
145 uint32 baseSizeL = widthA * heightA;
146 uint32 sizeL = 0;
147 uint32 iL;
148 for( iL = 0; iL < depthA; iL++ )
149 {
150 sizeL += ( baseSizeL >> ( iL * 2 ) );
151 }
152 return bbs_UInt8Arr_heapSize( cpA, &ptrA->arrE, sizeL );
153}
154
155/* ------------------------------------------------------------------------- */
156
157/* ========================================================================= */
158/* */
159/* ---- \ghd{ modify functions } ------------------------------------------- */
160/* */
161/* ========================================================================= */
162
163/* ------------------------------------------------------------------------- */
164
165void bim_UInt8PyramidalImage_create( struct bbs_Context* cpA,
166 struct bim_UInt8PyramidalImage* ptrA,
167 uint32 widthA, uint32 heightA,
168 uint32 depthA,
169 struct bbs_MemSeg* mspA )
170{
171 uint32 baseSizeL = widthA * heightA;
172 uint32 sizeL = 0;
173 uint32 iL;
174 if( bbs_Context_error( cpA ) ) return;
175 for( iL = 0; iL < depthA; iL++ )
176 {
177 sizeL += ( baseSizeL >> ( iL * 2 ) );
178 }
179
180 if( ptrA->arrE.arrPtrE != 0 )
181 {
182 bim_UInt8PyramidalImage_size( cpA, ptrA, widthA, heightA, depthA );
183 return;
184 }
185
186#ifdef DEBUG1
187 {
188 uint32 depthMaskL = ( 1 << ( depthA - 1 ) ) - 1;
189 if( depthA == 0 )
190 {
191 bbs_ERROR0( "void bim_UInt8PyramidalImage_create( struct bim_UInt8PyramidalImage* ptrA, uint32 widthA, uint32 heightA, uint32 depthA ):\n"
192 "depthA must be > 0" );
193 return;
194 }
195 if( ( ( widthA & depthMaskL ) > 0 ) || ( ( heightA & depthMaskL ) > 0 ) )
196 {
197 bbs_ERROR1( "void bim_UInt8PyramidalImage_create( struct bim_UInt8PyramidalImage* ptrA, uint32 widthA, uint32 heightA, uint32 depthA ):\n"
198 "widthA and heightA must be divisible by %i", depthMaskL + 1 );
199 return;
200 }
201 }
202#endif
203
204 ptrA->widthE = widthA;
205 ptrA->heightE = heightA;
206 ptrA->depthE = depthA;
207
208 bbs_UInt8Arr_create( cpA, &ptrA->arrE, sizeL, mspA );
209}
210
211/* ------------------------------------------------------------------------- */
212
213void bim_UInt8PyramidalImage_size( struct bbs_Context* cpA,
214 struct bim_UInt8PyramidalImage* ptrA,
215 uint32 widthA,
216 uint32 heightA,
217 uint32 depthA )
218{
219 uint32 baseSizeL = widthA * heightA;
220 uint32 sizeL = 0;
221 uint32 iL;
222
223#ifdef DEBUG1
224 uint32 depthMaskL = ( 1 << ( depthA - 1 ) ) - 1;
225 if( depthA == 0 )
226 {
227 bbs_ERROR0( "void bim_UInt8PyramidalImage_size( struct bim_UInt8PyramidalImage* ptrA, uint32 widthA, uint32 heightA, uint32 depthA ):\n"
228 "depthA must be > 0" );
229 return;
230 }
231
232 if( ( ( widthA & depthMaskL ) > 0 ) || ( ( heightA & depthMaskL ) > 0 ) )
233 {
234 bbs_ERROR1( "void bim_UInt8PyramidalImage_size( struct bim_UInt8PyramidalImage* ptrA, uint32 widthA, uint32 heightA, uint32 depthA ):\n"
235 "widthA and heightA must be divisible by %i", depthMaskL + 1 );
236 return;
237 }
238#endif
239
240 ptrA->widthE = widthA;
241 ptrA->heightE = heightA;
242 ptrA->depthE = depthA;
243
244 for( iL = 0; iL < depthA; iL++ )
245 {
246 sizeL += ( baseSizeL >> ( iL * 2 ) );
247 }
248#ifdef DEBUG1
249 if( sizeL > ptrA->arrE.allocatedSizeE )
250 {
251 bbs_ERROR0( "void bim_UInt8PyramidalImage_size( struct bim_UInt8PyramidalImage* ptrA, uint32 widthA, uint32 heightA, uint32 depthA ):\n"
252 "Insufficient allocated memory." );
253 return;
254 }
255#endif
256 bbs_UInt8Arr_size( cpA, &ptrA->arrE, sizeL );
257}
258
259/* ------------------------------------------------------------------------- */
260
261/* ========================================================================= */
262/* */
263/* ---- \ghd{ I/O } -------------------------------------------------------- */
264/* */
265/* ========================================================================= */
266
267/* ------------------------------------------------------------------------- */
268
269uint32 bim_UInt8PyramidalImage_memSize( struct bbs_Context* cpA,
270 const struct bim_UInt8PyramidalImage* ptrA )
271{
272 return bbs_SIZEOF16( uint32 )
273 + bbs_SIZEOF16( uint32 ) /* version */
274 + bbs_SIZEOF16( ptrA->widthE )
275 + bbs_SIZEOF16( ptrA->heightE )
276 + bbs_SIZEOF16( ptrA->depthE )
277 + bbs_UInt8Arr_memSize( cpA, &ptrA->arrE );
278}
279
280/* ------------------------------------------------------------------------- */
281
282uint32 bim_UInt8PyramidalImage_memWrite( struct bbs_Context* cpA,
283 const struct bim_UInt8PyramidalImage* ptrA,
284 uint16* memPtrA )
285{
286 uint32 memSizeL = bim_UInt8PyramidalImage_memSize( cpA, ptrA );
287 memPtrA += bbs_memWrite32( &memSizeL, memPtrA );
288 memPtrA += bbs_memWriteUInt32( bim_UINT8_PYRAMIDAL_IMAGE_VERSION, memPtrA );
289 memPtrA += bbs_memWrite32( &ptrA->widthE, memPtrA );
290 memPtrA += bbs_memWrite32( &ptrA->heightE, memPtrA );
291 memPtrA += bbs_memWrite32( &ptrA->depthE, memPtrA );
292 bbs_UInt8Arr_memWrite( cpA, &ptrA->arrE, memPtrA );
293 return memSizeL;
294}
295
296/* ------------------------------------------------------------------------- */
297
298uint32 bim_UInt8PyramidalImage_memRead( struct bbs_Context* cpA,
299 struct bim_UInt8PyramidalImage* ptrA,
300 const uint16* memPtrA,
301 struct bbs_MemSeg* mspA )
302{
303 uint32 memSizeL, versionL, widthL, heightL, depthL;
304 if( bbs_Context_error( cpA ) ) return 0;
305 memPtrA += bbs_memRead32( &memSizeL, memPtrA );
306 memPtrA += bbs_memReadVersion32( cpA, &versionL, bim_UINT8_PYRAMIDAL_IMAGE_VERSION, memPtrA );
307 memPtrA += bbs_memRead32( &widthL, memPtrA );
308 memPtrA += bbs_memRead32( &heightL, memPtrA );
309 memPtrA += bbs_memRead32( &depthL, memPtrA );
310
311 ptrA->widthE = widthL;
312 ptrA->heightE = heightL;
313 ptrA->depthE = depthL;
314 bbs_UInt8Arr_memRead( cpA, &ptrA->arrE, memPtrA, mspA );
315
316 if( memSizeL != bim_UInt8PyramidalImage_memSize( cpA, ptrA ) )
317 {
318 bbs_ERR0( bbs_ERR_CORRUPT_DATA, "uint32 bim_UInt8PyramidalImage_memRead( const struct bim_UInt8PyramidalImage* ptrA, const void* memPtrA ):\n"
319 "size mismatch" );
320 return 0;
321 }
322
323 return memSizeL;
324}
325
326/* ------------------------------------------------------------------------- */
327
328/* ========================================================================= */
329/* */
330/* ---- \ghd{ exec functions } --------------------------------------------- */
331/* */
332/* ========================================================================= */
333
334void bim_UInt8PyramidalImage_overlayUInt8( struct bbs_Context* cpA,
335 const struct bim_UInt8PyramidalImage* ptrA,
336 struct bim_UInt8Image* uint8ImageA )
337{
338 uint8ImageA->widthE = ptrA->widthE;
339 uint8ImageA->heightE = ptrA->heightE;
340 uint8ImageA->arrE.sizeE = ptrA->widthE * ptrA->heightE;
341 uint8ImageA->arrE.allocatedSizeE = ptrA->widthE * ptrA->heightE;
342 uint8ImageA->arrE.arrPtrE = ptrA->arrE.arrPtrE;
343 uint8ImageA->arrE.mspE = 0;
344}
345
346/* ------------------------------------------------------------------------- */
347
348void bim_UInt8PyramidalImage_recompute( struct bbs_Context* cpA,
349 struct bim_UInt8PyramidalImage* dstPtrA )
350{
351 uint32 iL, jL, layerL, widthL, heightL;
352 uint8 *srcL, *dstL;
353
354 /* process remaining layers */
355 widthL = dstPtrA->widthE;
356 heightL = dstPtrA->heightE;
357 srcL = dstPtrA->arrE.arrPtrE;
358 dstL = srcL + widthL * heightL;
359 for( layerL = 1; layerL < dstPtrA->depthE; layerL++ )
360 {
361 for( jL = ( heightL >> 1 ); jL > 0; jL-- )
362 {
363 for( iL = ( widthL >> 1 ); iL > 0; iL-- )
364 {
365 /* averaging with roundig */
366 *dstL++ = ( ( *srcL + *( srcL + 1 ) + *( srcL + widthL ) + *( srcL + widthL + 1 ) ) + 2 ) >> 2;
367 srcL += 2;
368 }
369 srcL += widthL;
370 }
371 widthL >>= 1;
372 heightL >>= 1;
373 }
374}
375
376/* ------------------------------------------------------------------------- */
377
378void bim_UInt8PyramidalImage_importUInt8( struct bbs_Context* cpA,
379 struct bim_UInt8PyramidalImage* dstPtrA,
380 const struct bim_UInt8Image* srcPtrA,
381 uint32 depthA )
382{
383
384 bim_UInt8PyramidalImage_size( cpA, dstPtrA, srcPtrA->widthE, srcPtrA->heightE, depthA );
385
386 if( srcPtrA->arrE.sizeE & 1 )
387 {
388 bbs_ERROR0( "void bim_UInt8PyramidalImage_importUInt8(....):\n"
389 "Size of source image must be even.\n" );
390 return;
391
392 }
393
394 /* copy first layer */
395 bbs_memcpy16( dstPtrA->arrE.arrPtrE, srcPtrA->arrE.arrPtrE, srcPtrA->arrE.sizeE >> 1 );
396
397 bim_UInt8PyramidalImage_recompute( cpA, dstPtrA );
398}
399
400/* ------------------------------------------------------------------------- */
401
402/* ========================================================================= */
403
404