/src/libavc/common/ih264_disp_mgr.c

Source
/******************************************************************************
 *
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.
 *
 *****************************************************************************
 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/

/**
*******************************************************************************
* @file
*  ih264_disp_mgr.c
*
* @brief
*  Contains function definitions for display management
*
* @author
*  ittiam
*
* @par List of Functions:
*  - ih264_disp_mgr_init
*  - ih264_disp_mgr_add
*  - ih264_disp_mgr_get
*
* @remarks
*  none
*
*******************************************************************************
*/

/*****************************************************************************/
/* File Includes                                                             */
/*****************************************************************************/

/* System Include Files */
#include <stdlib.h>

/* User Include Files */
#include "ih264_typedefs.h"
#include "ih264_macros.h"
#include "ih264_disp_mgr.h"

/*****************************************************************************/
/* Function Definitions                                                      */
/*****************************************************************************/

/**
*******************************************************************************
*
* @brief Initialization function for display buffer manager
*
* @par Description
*  Initializes the display buffer management structure
*
* @param[in] ps_disp_mgr
*  Pointer to the display buffer management structure
*
* @returns none
*
* @remarks none
*
*******************************************************************************
*/
void ih264_disp_mgr_init(disp_mgr_t *ps_disp_mgr)
{
    WORD32 id;

    ps_disp_mgr->u4_last_abs_poc = DEFAULT_POC;

    for(id = 0; id < DISP_MGR_MAX_CNT; id++)
    {
        ps_disp_mgr->ai4_abs_poc[id] = DEFAULT_POC;
        ps_disp_mgr->apv_ptr[id] = NULL;
    }
}

/**
*******************************************************************************
*
* @brief Adds a buffer to the display manager
*
* @par Description:
*  Adds a buffer to the display buffer manager
*
* @param[in] ps_disp_mgr
*  Pointer to the display buffer management structure
*
* @param[in] buf_id
*  ID of the display buffer
*
* @param[in] abs_poc
*  Absolute POC of the display buffer
*
* @param[in] pv_ptr
*  Pointer to the display buffer
*
* @returns  0 if success, -1 otherwise
*
* @remarks
*  None
*
*******************************************************************************
*/
WORD32 ih264_disp_mgr_add(disp_mgr_t *ps_disp_mgr,
                          WORD32 buf_id,
                          WORD32 abs_poc,
                          void *pv_ptr)
{
    if(buf_id >= DISP_MGR_MAX_CNT)
    {
        return (-1);
    }

    if(ps_disp_mgr->apv_ptr[buf_id] != NULL)
    {
        return (-1);
    }

    ps_disp_mgr->apv_ptr[buf_id] = pv_ptr;
    ps_disp_mgr->ai4_abs_poc[buf_id] = abs_poc;

    return 0;
}

/**
*******************************************************************************
*
* @brief Gets the next buffer
*
* @par Description:
*  Gets the next display buffer
*
* @param[in] ps_disp_mgr
*  Pointer to the display buffer structure
*
* @param[out]  pi4_buf_id
*  Pointer to hold buffer id of the display buffer being returned
*
* @returns  Pointer to the next display buffer
*
* @remarks
*  None
*
*******************************************************************************
*/
void* ih264_disp_mgr_get(disp_mgr_t *ps_disp_mgr, WORD32 *pi4_buf_id)
{
    WORD32 id;
    void *pv_ret_ptr = NULL;
    WORD32 i4_min_poc = 0x7FFFFFFF;
    WORD32 min_poc_id = -1;

    /* Find minimum POC */
    for(id = 0; id < DISP_MGR_MAX_CNT; id++)
    {
        if((DEFAULT_POC != ps_disp_mgr->ai4_abs_poc[id]) &&
           (ps_disp_mgr->ai4_abs_poc[id] <= i4_min_poc))
        {
            i4_min_poc = ps_disp_mgr->ai4_abs_poc[id];
            min_poc_id = id;
        }
    }
    *pi4_buf_id = min_poc_id;
    /* If all pocs are still default_poc then return NULL */
    if(-1 == min_poc_id)
    {
        return NULL;
    }

    pv_ret_ptr = ps_disp_mgr->apv_ptr[min_poc_id];

    /* Set abs poc to default and apv_ptr to null so that the buffer is not returned again */
    ps_disp_mgr->apv_ptr[min_poc_id] = NULL;
    ps_disp_mgr->ai4_abs_poc[min_poc_id] = DEFAULT_POC;

    return pv_ret_ptr;
}

Line	Count	Source
1		/******************************************************************************
2		*
3		* Copyright (C) 2015 The Android Open Source Project
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		* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19		*/
20
21		/**
22		*******************************************************************************
23		* @file
24		* ih264_disp_mgr.c
25		*
26		* @brief
27		* Contains function definitions for display management
28		*
29		* @author
30		* ittiam
31		*
32		* @par List of Functions:
33		* - ih264_disp_mgr_init
34		* - ih264_disp_mgr_add
35		* - ih264_disp_mgr_get
36		*
37		* @remarks
38		* none
39		*
40		*******************************************************************************
41		*/
42
43		/*****************************************************************************/
44		/* File Includes */
45		/*****************************************************************************/
46
47		/* System Include Files */
48		#include <stdlib.h>
49
50		/* User Include Files */
51		#include "ih264_typedefs.h"
52		#include "ih264_macros.h"
53		#include "ih264_disp_mgr.h"
54
55		/*****************************************************************************/
56		/* Function Definitions */
57		/*****************************************************************************/
58
59		/**
60		*******************************************************************************
61		*
62		* @brief Initialization function for display buffer manager
63		*
64		* @par Description
65		* Initializes the display buffer management structure
66		*
67		* @param[in] ps_disp_mgr
68		* Pointer to the display buffer management structure
69		*
70		* @returns none
71		*
72		* @remarks none
73		*
74		*******************************************************************************
75		*/
76		void ih264_disp_mgr_init(disp_mgr_t *ps_disp_mgr)
77	46.7k	{
78	46.7k	WORD32 id;
79
80	46.7k	ps_disp_mgr->u4_last_abs_poc = DEFAULT_POC;
81
82	3.03M	for(id = 0; id < DISP_MGR_MAX_CNT; id++)
83	2.99M	{
84	2.99M	ps_disp_mgr->ai4_abs_poc[id] = DEFAULT_POC;
85	2.99M	ps_disp_mgr->apv_ptr[id] = NULL;
86	2.99M	}
87	46.7k	}
88
89		/**
90		*******************************************************************************
91		*
92		* @brief Adds a buffer to the display manager
93		*
94		* @par Description:
95		* Adds a buffer to the display buffer manager
96		*
97		* @param[in] ps_disp_mgr
98		* Pointer to the display buffer management structure
99		*
100		* @param[in] buf_id
101		* ID of the display buffer
102		*
103		* @param[in] abs_poc
104		* Absolute POC of the display buffer
105		*
106		* @param[in] pv_ptr
107		* Pointer to the display buffer
108		*
109		* @returns 0 if success, -1 otherwise
110		*
111		* @remarks
112		* None
113		*
114		*******************************************************************************
115		*/
116		WORD32 ih264_disp_mgr_add(disp_mgr_t *ps_disp_mgr,
117		WORD32 buf_id,
118		WORD32 abs_poc,
119		void *pv_ptr)
120	178k	{
121	178k	if(buf_id >= DISP_MGR_MAX_CNT)
122	0	{
123	0	return (-1);
124	0	}
125
126	178k	if(ps_disp_mgr->apv_ptr[buf_id] != NULL)
127	538	{
128	538	return (-1);
129	538	}
130
131	178k	ps_disp_mgr->apv_ptr[buf_id] = pv_ptr;
132	178k	ps_disp_mgr->ai4_abs_poc[buf_id] = abs_poc;
133
134	178k	return 0;
135	178k	}
136
137		/**
138		*******************************************************************************
139		*
140		* @brief Gets the next buffer
141		*
142		* @par Description:
143		* Gets the next display buffer
144		*
145		* @param[in] ps_disp_mgr
146		* Pointer to the display buffer structure
147		*
148		* @param[out] pi4_buf_id
149		* Pointer to hold buffer id of the display buffer being returned
150		*
151		* @returns Pointer to the next display buffer
152		*
153		* @remarks
154		* None
155		*
156		*******************************************************************************
157		*/
158		void* ih264_disp_mgr_get(disp_mgr_t ps_disp_mgr, WORD32 pi4_buf_id)
159	308k	{
160	308k	WORD32 id;
161	308k	void *pv_ret_ptr = NULL;
162	308k	WORD32 i4_min_poc = 0x7FFFFFFF;
163	308k	WORD32 min_poc_id = -1;
164
165		/* Find minimum POC */
166	20.0M	for(id = 0; id < DISP_MGR_MAX_CNT; id++)
167	19.7M	{
168	19.7M	if((DEFAULT_POC != ps_disp_mgr->ai4_abs_poc[id]) &&
169	308k	(ps_disp_mgr->ai4_abs_poc[id] <= i4_min_poc))
170	200k	{
171	200k	i4_min_poc = ps_disp_mgr->ai4_abs_poc[id];
172	200k	min_poc_id = id;
173	200k	}
174	19.7M	}
175	308k	*pi4_buf_id = min_poc_id;
176		/* If all pocs are still default_poc then return NULL */
177	308k	if(-1 == min_poc_id)
178	143k	{
179	143k	return NULL;
180	143k	}
181
182	165k	pv_ret_ptr = ps_disp_mgr->apv_ptr[min_poc_id];
183
184		/* Set abs poc to default and apv_ptr to null so that the buffer is not returned again */
185	165k	ps_disp_mgr->apv_ptr[min_poc_id] = NULL;
186	165k	ps_disp_mgr->ai4_abs_poc[min_poc_id] = DEFAULT_POC;
187
188	165k	return pv_ret_ptr;
189	308k	}

Coverage Report

Created: 2025-11-12 06:11