/src/libhevc/common/ihevc_recon.c

Source
/******************************************************************************
*
* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/**
 *******************************************************************************
 * @file
 *  ihevc_recon.c
 *
 * @brief
 *  Functions definitions reconstruction
 *
 * @author
 *  Ittiam
 *
 * @par List of Functions:
 *  - ihevc_recon_4x4_ttype1()
 *  - ihevc_recon_4x4()
 *  - ihevc_recon_8x8()
 *  - ihevc_recon_16x16()
 *  - ihevc_recon_32x32()
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */
#include <stdio.h>
#include <string.h>
#include "ihevc_typedefs.h"
#include "ihevc_macros.h"
#include "ihevc_platform_macros.h"
#include "ihevc_defs.h"
#include "ihevc_trans_tables.h"
#include "ihevc_recon.h"
#include "ihevc_func_selector.h"
#include "ihevc_trans_macros.h"

/* All the functions here are replicated from ihevc.c and modified to */
/* include reconstruction */

/**
 *******************************************************************************
 *
 * @brief
 *  This function performs reconstruction for  4x4 input block
 *
 * @par Description:
 *  Performs reconstruction of 4x4 input block by adding  adding prediction
 * data to input and clipping it to 8 bit
 *
 * @param[in] pi2_src
 *  Input 4x4 coefficients
 *
 * @param[in] pu1_pred
 *  Prediction 4x4 block
 *
 * @param[out] pu1_dst
 *  Output 4x4 block
 *
 * @param[in] src_strd
 *  Input stride
 *
 * @param[in] pred_strd
 *  Prediction stride
 *
 * @param[in] dst_strd
 *  Output Stride
 *
 * @param[in] zero_cols
 *  Zero columns in pi2_tmp
 *
 * @returns  Void
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */

void ihevc_recon_4x4_ttype1(WORD16 *pi2_src,
                            UWORD8 *pu1_pred,
                            UWORD8 *pu1_dst,
                            WORD32 src_strd,
                            WORD32 pred_strd,
                            WORD32 dst_strd,
                            WORD32 zero_cols)
{
    WORD32 i, j;
    WORD32 trans_size;

    trans_size = TRANS_SIZE_4;

    /* Reconstruction */

    for(i = 0; i < trans_size; i++)
    {
        /* Checking for Zero Cols */
        if((zero_cols & 1) == 1)
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
            }
        }
        else
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] =
                                CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
            }
        }
        pi2_src++;
        pu1_dst++;
        pu1_pred++;
        zero_cols = zero_cols >> 1;
    }
}

/**
 *******************************************************************************
 *
 * @brief
 *  This function performs reconstruction for  4x4 input block
 *
 * @par Description:
 *  Performs reconstruction of 4x4 input block by adding  adding prediction
 * data to input and clipping it to 8 bit
 *
 * @param[in] pi2_src
 *  Input 4x4 coefficients
 *
 * @param[in] pu1_pred
 *  Prediction 4x4 block
 *
 * @param[out] pu1_dst
 *  Output 4x4 block
 *
 * @param[in] src_strd
 *  Input stride
 *
 * @param[in] pred_strd
 *  Prediction stride
 *
 * @param[in] dst_strd
 *  Output Stride
 *
 * @param[in] shift
 *  Output shift
 *
 * @param[in] zero_cols
 *  Zero columns in pi2_tmp
 *
 * @returns  Void
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */

void ihevc_recon_4x4(WORD16 *pi2_src,
                     UWORD8 *pu1_pred,
                     UWORD8 *pu1_dst,
                     WORD32 src_strd,
                     WORD32 pred_strd,
                     WORD32 dst_strd,
                     WORD32 zero_cols)
{
    WORD32 i, j;
    WORD32 trans_size;

    trans_size = TRANS_SIZE_4;

    /* Reconstruction */

    for(i = 0; i < trans_size; i++)
    {
        /* Checking for Zero Cols */
        if((zero_cols & 1) == 1)
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
            }
        }
        else
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] =
                                CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
            }
        }
        pi2_src++;
        pu1_dst++;
        pu1_pred++;
        zero_cols = zero_cols >> 1;
    }
}

/**
 *******************************************************************************
 *
 * @brief
 *  This function performs reconstruction for  8x8 input block
 *
 * @par Description:
 *  Performs reconstruction of 8x8 input block by adding  adding prediction
 * data to input and clipping it to 8 bit
 *
 * @param[in] pi2_src
 *  Input 8x8 coefficients
 *
 * @param[in] pu1_pred
 *  Prediction 8x8 block
 *
 * @param[out] pu1_dst
 *  Output 8x8 block
 *
 * @param[in] src_strd
 *  Input stride
 *
 * @param[in] pred_strd
 *  Prediction stride
 *
 * @param[in] dst_strd
 *  Output Stride
 *
 * @param[in] shift
 *  Output shift
 *
 * @param[in] zero_cols
 *  Zero columns in pi2_tmp
 *
 * @returns  Void
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */

void ihevc_recon_8x8(WORD16 *pi2_src,
                     UWORD8 *pu1_pred,
                     UWORD8 *pu1_dst,
                     WORD32 src_strd,
                     WORD32 pred_strd,
                     WORD32 dst_strd,
                     WORD32 zero_cols)
{
    WORD32 i, j;
    WORD32 trans_size;

    trans_size = TRANS_SIZE_8;

    /* Reconstruction */

    for(i = 0; i < trans_size; i++)
    {
        /* Checking for Zero Cols */
        if((zero_cols & 1) == 1)
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
            }
        }
        else
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] =
                                CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
            }
        }
        pi2_src++;
        pu1_dst++;
        pu1_pred++;
        zero_cols = zero_cols >> 1;
    }
}

/**
 *******************************************************************************
 *
 * @brief
 *  This function performs reconstruction for  16x16 input block
 *
 * @par Description:
 *  Performs reconstruction of 16x16 input block by adding  adding prediction
 * data to input and clipping it to 8 bit
 *
 * @param[in] pi2_src
 *  Input 16x16 coefficients
 *
 * @param[in] pu1_pred
 *  Prediction 16x16 block
 *
 * @param[out] pu1_dst
 *  Output 16x16 block
 *
 * @param[in] src_strd
 *  Input stride
 *
 * @param[in] pred_strd
 *  Prediction stride
 *
 * @param[in] dst_strd
 *  Output Stride
 *
 * @param[in] shift
 *  Output shift
 *
 * @param[in] zero_cols
 *  Zero columns in pi2_tmp
 *
 * @returns  Void
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */

void ihevc_recon_16x16(WORD16 *pi2_src,
                       UWORD8 *pu1_pred,
                       UWORD8 *pu1_dst,
                       WORD32 src_strd,
                       WORD32 pred_strd,
                       WORD32 dst_strd,
                       WORD32 zero_cols)
{
    WORD32 i, j;
    WORD32 trans_size;

    trans_size = TRANS_SIZE_16;

    /* Reconstruction */

    for(i = 0; i < trans_size; i++)
    {
        /* Checking for Zero Cols */
        if((zero_cols & 1) == 1)
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
            }
        }
        else
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] =
                                CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
            }
        }
        pi2_src++;
        pu1_dst++;
        pu1_pred++;
        zero_cols = zero_cols >> 1;
    }
}

/**
 *******************************************************************************
 *
 * @brief
 *  This function performs reconstruction for  32x32 input block
 *
 * @par Description:
 *  Performs reconstruction of 32x32 input block by adding  adding prediction
 * data to input and clipping it to 8 bit
 *
 * @param[in] pi2_src
 *  Input 32x32 coefficients
 *
 * @param[in] pu1_pred
 *  Prediction 32x32 block
 *
 * @param[out] pu1_dst
 *  Output 32x32 block
 *
 * @param[in] src_strd
 *  Input stride
 *
 * @param[in] pred_strd
 *  Prediction stride
 *
 * @param[in] dst_strd
 *  Output Stride
 *
 * @param[in] shift
 *  Output shift
 *
 * @param[in] zero_cols
 *  Zero columns in pi2_tmp
 *
 * @returns  Void
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */

void ihevc_recon_32x32(WORD16 *pi2_src,
                       UWORD8 *pu1_pred,
                       UWORD8 *pu1_dst,
                       WORD32 src_strd,
                       WORD32 pred_strd,
                       WORD32 dst_strd,
                       WORD32 zero_cols)
{
    WORD32 i, j;
    WORD32 trans_size;

    trans_size = TRANS_SIZE_32;

    /* Reconstruction */

    for(i = 0; i < trans_size; i++)
    {
        /* Checking for Zero Cols */
        if((zero_cols & 1) == 1)
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
            }
        }
        else
        {
            for(j = 0; j < trans_size; j++)
            {
                pu1_dst[j * dst_strd] =
                                CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
            }
        }
        pi2_src++;
        pu1_dst++;
        pu1_pred++;
        zero_cols = zero_cols >> 1;
    }
}


Coverage Report

Created: 2025-07-18 07:02

Line	Count	Source
1		/******************************************************************************
2		*
3		* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore
4		*
5		* Licensed under the Apache License, Version 2.0 (the "License");
6		* you may not use this file except in compliance with the License.
7		* You may obtain a copy of the License at:
8		*
9		* http://www.apache.org/licenses/LICENSE-2.0
10		*
11		* Unless required by applicable law or agreed to in writing, software
12		* distributed under the License is distributed on an "AS IS" BASIS,
13		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14		* See the License for the specific language governing permissions and
15		* limitations under the License.
16		*
17		******************************************************************************/
18		/**
19		*******************************************************************************
20		* @file
21		* ihevc_recon.c
22		*
23		* @brief
24		* Functions definitions reconstruction
25		*
26		* @author
27		* Ittiam
28		*
29		* @par List of Functions:
30		* - ihevc_recon_4x4_ttype1()
31		* - ihevc_recon_4x4()
32		* - ihevc_recon_8x8()
33		* - ihevc_recon_16x16()
34		* - ihevc_recon_32x32()
35		*
36		* @remarks
37		* None
38		*
39		*******************************************************************************
40		*/
41		#include <stdio.h>
42		#include <string.h>
43		#include "ihevc_typedefs.h"
44		#include "ihevc_macros.h"
45		#include "ihevc_platform_macros.h"
46		#include "ihevc_defs.h"
47		#include "ihevc_trans_tables.h"
48		#include "ihevc_recon.h"
49		#include "ihevc_func_selector.h"
50		#include "ihevc_trans_macros.h"
51
52		/* All the functions here are replicated from ihevc.c and modified to */
53		/* include reconstruction */
54
55		/**
56		*******************************************************************************
57		*
58		* @brief
59		* This function performs reconstruction for 4x4 input block
60		*
61		* @par Description:
62		* Performs reconstruction of 4x4 input block by adding adding prediction
63		* data to input and clipping it to 8 bit
64		*
65		* @param[in] pi2_src
66		* Input 4x4 coefficients
67		*
68		* @param[in] pu1_pred
69		* Prediction 4x4 block
70		*
71		* @param[out] pu1_dst
72		* Output 4x4 block
73		*
74		* @param[in] src_strd
75		* Input stride
76		*
77		* @param[in] pred_strd
78		* Prediction stride
79		*
80		* @param[in] dst_strd
81		* Output Stride
82		*
83		* @param[in] zero_cols
84		* Zero columns in pi2_tmp
85		*
86		* @returns Void
87		*
88		* @remarks
89		* None
90		*
91		*******************************************************************************
92		*/
93
94		void ihevc_recon_4x4_ttype1(WORD16 *pi2_src,
95		UWORD8 *pu1_pred,
96		UWORD8 *pu1_dst,
97		WORD32 src_strd,
98		WORD32 pred_strd,
99		WORD32 dst_strd,
100		WORD32 zero_cols)
101	160k	{
102	160k	WORD32 i, j;
103	160k	WORD32 trans_size;
104
105	160k	trans_size = TRANS_SIZE_4;
106
107		/* Reconstruction */
108
109	800k	for(i = 0; i < trans_size; i++)
110	640k	{
111		/* Checking for Zero Cols */
112	640k	if((zero_cols & 1) == 1)
113	312k	{
114	1.56M	for(j = 0; j < trans_size; j++)
115	1.24M	{
116	1.24M	pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
117	1.24M	}
118	312k	}
119	327k	else
120	327k	{
121	1.63M	for(j = 0; j < trans_size; j++)
122	1.31M	{
123	1.31M	pu1_dst[j * dst_strd] =
124	1.31M	CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
125	1.31M	}
126	327k	}
127	640k	pi2_src++;
128	640k	pu1_dst++;
129	640k	pu1_pred++;
130	640k	zero_cols = zero_cols >> 1;
131	640k	}
132	160k	}
133
134		/**
135		*******************************************************************************
136		*
137		* @brief
138		* This function performs reconstruction for 4x4 input block
139		*
140		* @par Description:
141		* Performs reconstruction of 4x4 input block by adding adding prediction
142		* data to input and clipping it to 8 bit
143		*
144		* @param[in] pi2_src
145		* Input 4x4 coefficients
146		*
147		* @param[in] pu1_pred
148		* Prediction 4x4 block
149		*
150		* @param[out] pu1_dst
151		* Output 4x4 block
152		*
153		* @param[in] src_strd
154		* Input stride
155		*
156		* @param[in] pred_strd
157		* Prediction stride
158		*
159		* @param[in] dst_strd
160		* Output Stride
161		*
162		* @param[in] shift
163		* Output shift
164		*
165		* @param[in] zero_cols
166		* Zero columns in pi2_tmp
167		*
168		* @returns Void
169		*
170		* @remarks
171		* None
172		*
173		*******************************************************************************
174		*/
175
176		void ihevc_recon_4x4(WORD16 *pi2_src,
177		UWORD8 *pu1_pred,
178		UWORD8 *pu1_dst,
179		WORD32 src_strd,
180		WORD32 pred_strd,
181		WORD32 dst_strd,
182		WORD32 zero_cols)
183	53.7k	{
184	53.7k	WORD32 i, j;
185	53.7k	WORD32 trans_size;
186
187	53.7k	trans_size = TRANS_SIZE_4;
188
189		/* Reconstruction */
190
191	268k	for(i = 0; i < trans_size; i++)
192	215k	{
193		/* Checking for Zero Cols */
194	215k	if((zero_cols & 1) == 1)
195	117k	{
196	585k	for(j = 0; j < trans_size; j++)
197	468k	{
198	468k	pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
199	468k	}
200	117k	}
201	98.0k	else
202	98.0k	{
203	490k	for(j = 0; j < trans_size; j++)
204	392k	{
205	392k	pu1_dst[j * dst_strd] =
206	392k	CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
207	392k	}
208	98.0k	}
209	215k	pi2_src++;
210	215k	pu1_dst++;
211	215k	pu1_pred++;
212	215k	zero_cols = zero_cols >> 1;
213	215k	}
214	53.7k	}
215
216		/**
217		*******************************************************************************
218		*
219		* @brief
220		* This function performs reconstruction for 8x8 input block
221		*
222		* @par Description:
223		* Performs reconstruction of 8x8 input block by adding adding prediction
224		* data to input and clipping it to 8 bit
225		*
226		* @param[in] pi2_src
227		* Input 8x8 coefficients
228		*
229		* @param[in] pu1_pred
230		* Prediction 8x8 block
231		*
232		* @param[out] pu1_dst
233		* Output 8x8 block
234		*
235		* @param[in] src_strd
236		* Input stride
237		*
238		* @param[in] pred_strd
239		* Prediction stride
240		*
241		* @param[in] dst_strd
242		* Output Stride
243		*
244		* @param[in] shift
245		* Output shift
246		*
247		* @param[in] zero_cols
248		* Zero columns in pi2_tmp
249		*
250		* @returns Void
251		*
252		* @remarks
253		* None
254		*
255		*******************************************************************************
256		*/
257
258		void ihevc_recon_8x8(WORD16 *pi2_src,
259		UWORD8 *pu1_pred,
260		UWORD8 *pu1_dst,
261		WORD32 src_strd,
262		WORD32 pred_strd,
263		WORD32 dst_strd,
264		WORD32 zero_cols)
265	12.1k	{
266	12.1k	WORD32 i, j;
267	12.1k	WORD32 trans_size;
268
269	12.1k	trans_size = TRANS_SIZE_8;
270
271		/* Reconstruction */
272
273	109k	for(i = 0; i < trans_size; i++)
274	97.3k	{
275		/* Checking for Zero Cols */
276	97.3k	if((zero_cols & 1) == 1)
277	60.1k	{
278	541k	for(j = 0; j < trans_size; j++)
279	480k	{
280	480k	pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
281	480k	}
282	60.1k	}
283	37.2k	else
284	37.2k	{
285	335k	for(j = 0; j < trans_size; j++)
286	297k	{
287	297k	pu1_dst[j * dst_strd] =
288	297k	CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
289	297k	}
290	37.2k	}
291	97.3k	pi2_src++;
292	97.3k	pu1_dst++;
293	97.3k	pu1_pred++;
294	97.3k	zero_cols = zero_cols >> 1;
295	97.3k	}
296	12.1k	}
297
298		/**
299		*******************************************************************************
300		*
301		* @brief
302		* This function performs reconstruction for 16x16 input block
303		*
304		* @par Description:
305		* Performs reconstruction of 16x16 input block by adding adding prediction
306		* data to input and clipping it to 8 bit
307		*
308		* @param[in] pi2_src
309		* Input 16x16 coefficients
310		*
311		* @param[in] pu1_pred
312		* Prediction 16x16 block
313		*
314		* @param[out] pu1_dst
315		* Output 16x16 block
316		*
317		* @param[in] src_strd
318		* Input stride
319		*
320		* @param[in] pred_strd
321		* Prediction stride
322		*
323		* @param[in] dst_strd
324		* Output Stride
325		*
326		* @param[in] shift
327		* Output shift
328		*
329		* @param[in] zero_cols
330		* Zero columns in pi2_tmp
331		*
332		* @returns Void
333		*
334		* @remarks
335		* None
336		*
337		*******************************************************************************
338		*/
339
340		void ihevc_recon_16x16(WORD16 *pi2_src,
341		UWORD8 *pu1_pred,
342		UWORD8 *pu1_dst,
343		WORD32 src_strd,
344		WORD32 pred_strd,
345		WORD32 dst_strd,
346		WORD32 zero_cols)
347	5.35k	{
348	5.35k	WORD32 i, j;
349	5.35k	WORD32 trans_size;
350
351	5.35k	trans_size = TRANS_SIZE_16;
352
353		/* Reconstruction */
354
355	90.9k	for(i = 0; i < trans_size; i++)
356	85.5k	{
357		/* Checking for Zero Cols */
358	85.5k	if((zero_cols & 1) == 1)
359	66.0k	{
360	1.12M	for(j = 0; j < trans_size; j++)
361	1.05M	{
362	1.05M	pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
363	1.05M	}
364	66.0k	}
365	19.5k	else
366	19.5k	{
367	332k	for(j = 0; j < trans_size; j++)
368	312k	{
369	312k	pu1_dst[j * dst_strd] =
370	312k	CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
371	312k	}
372	19.5k	}
373	85.5k	pi2_src++;
374	85.5k	pu1_dst++;
375	85.5k	pu1_pred++;
376	85.5k	zero_cols = zero_cols >> 1;
377	85.5k	}
378	5.35k	}
379
380		/**
381		*******************************************************************************
382		*
383		* @brief
384		* This function performs reconstruction for 32x32 input block
385		*
386		* @par Description:
387		* Performs reconstruction of 32x32 input block by adding adding prediction
388		* data to input and clipping it to 8 bit
389		*
390		* @param[in] pi2_src
391		* Input 32x32 coefficients
392		*
393		* @param[in] pu1_pred
394		* Prediction 32x32 block
395		*
396		* @param[out] pu1_dst
397		* Output 32x32 block
398		*
399		* @param[in] src_strd
400		* Input stride
401		*
402		* @param[in] pred_strd
403		* Prediction stride
404		*
405		* @param[in] dst_strd
406		* Output Stride
407		*
408		* @param[in] shift
409		* Output shift
410		*
411		* @param[in] zero_cols
412		* Zero columns in pi2_tmp
413		*
414		* @returns Void
415		*
416		* @remarks
417		* None
418		*
419		*******************************************************************************
420		*/
421
422		void ihevc_recon_32x32(WORD16 *pi2_src,
423		UWORD8 *pu1_pred,
424		UWORD8 *pu1_dst,
425		WORD32 src_strd,
426		WORD32 pred_strd,
427		WORD32 dst_strd,
428		WORD32 zero_cols)
429	3.69k	{
430	3.69k	WORD32 i, j;
431	3.69k	WORD32 trans_size;
432
433	3.69k	trans_size = TRANS_SIZE_32;
434
435		/* Reconstruction */
436
437	121k	for(i = 0; i < trans_size; i++)
438	118k	{
439		/* Checking for Zero Cols */
440	118k	if((zero_cols & 1) == 1)
441	98.6k	{
442	3.25M	for(j = 0; j < trans_size; j++)
443	3.15M	{
444	3.15M	pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd];
445	3.15M	}
446	98.6k	}
447	19.5k	else
448	19.5k	{
449	645k	for(j = 0; j < trans_size; j++)
450	625k	{
451	625k	pu1_dst[j * dst_strd] =
452	625k	CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]);
453	625k	}
454	19.5k	}
455	118k	pi2_src++;
456	118k	pu1_dst++;
457	118k	pu1_pred++;
458	118k	zero_cols = zero_cols >> 1;
459	118k	}
460	3.69k	}
461