src/tdm_buffer.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <boram1288.park@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 static int tdm_buffer_key;
  43 #define TDM_BUFFER_KEY ((unsigned long)&tdm_buffer_key)
  44
  45 typedef struct _tdm_buffer_func_info {
  46         tdm_buffer_release_handler release_func;
  47         tdm_buffer_destroy_handler destroy_func;
  48         void *user_data;
  49
  50         struct list_head link;
  51 } tdm_buffer_func_info;
  52
  53 static void
  54 _tdm_buffer_destroy_info(void *user_data)
  55 {
  56         tdm_buffer_info *buf_info = (tdm_buffer_info *)user_data;
  57         tdm_buffer_func_info *func_info = NULL, *next = NULL;
  58
  59         if (buf_info->backend_ref_count > 0) {
  60                 TDM_NEVER_GET_HERE();
  61                 if (tdm_debug_module & TDM_DEBUG_BUFFER)
  62                         TDM_INFO("%p", buf_info->buffer);
  63         }
  64
  65         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
  66                 LIST_DEL(&func_info->link);
  67                 free(func_info);
  68         }
  69
  70         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link)
  71         func_info->destroy_func(buf_info->buffer, func_info->user_data);
  72
  73         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link) {
  74                 LIST_DEL(&func_info->link);
  75                 free(func_info);
  76         }
  77
  78         if (tdm_debug_module & TDM_DEBUG_BUFFER)
  79                 TDM_INFO("%p destroyed", buf_info->buffer);
  80
  81         free(buf_info);
  82 }
  83
  84 INTERN tdm_buffer_info *
  85 tdm_buffer_get_info(tbm_surface_h buffer)
  86 {
  87         tdm_buffer_info *buf_info = NULL;
  88
  89         if (!tbm_surface_internal_get_user_data(buffer, TDM_BUFFER_KEY, (void **)&buf_info)) {
  90                 buf_info = calloc(1, sizeof(tdm_buffer_info));
  91                 TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, NULL);
  92
  93                 buf_info->buffer = buffer;
  94
  95                 LIST_INITHEAD(&buf_info->release_funcs);
  96                 LIST_INITHEAD(&buf_info->destroy_funcs);
  97                 LIST_INITHEAD(&buf_info->link);
  98
  99                 if (!tbm_surface_internal_add_user_data(buffer, TDM_BUFFER_KEY, _tdm_buffer_destroy_info)) {
 100                         TDM_ERR("FAIL to create user_data for surface %p", buffer);
 101                         free(buf_info);
 102                         return NULL;
 103                 }
 104                 if (!tbm_surface_internal_set_user_data(buffer, TDM_BUFFER_KEY, buf_info)) {
 105                         TDM_ERR("FAIL to set user_data for surface %p", buffer);
 106                         tbm_surface_internal_delete_user_data(buffer, TDM_BUFFER_KEY);
 107                         free(buf_info);
 108                         return NULL;
 109                 }
 110
 111                 if (tdm_debug_module & TDM_DEBUG_BUFFER)
 112                         TDM_INFO("%p created", buf_info->buffer);
 113         }
 114
 115         return buf_info;
 116 }
 117
 118 EXTERN tdm_error
 119 tdm_buffer_add_release_handler(tbm_surface_h buffer,
 120                                                            tdm_buffer_release_handler func, void *user_data)
 121 {
 122         tdm_buffer_info *buf_info;
 123         tdm_buffer_func_info *func_info = NULL;
 124
 125         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 126         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 127
 128         buf_info = tdm_buffer_get_info(buffer);
 129         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 130
 131         LIST_FOR_EACH_ENTRY(func_info, &buf_info->release_funcs, link) {
 132                 if (func_info->release_func == func && func_info->user_data == user_data) {
 133                         TDM_ERR("can't add twice");
 134                         return TDM_ERROR_BAD_REQUEST;
 135                 }
 136         }
 137
 138         func_info = calloc(1, sizeof(tdm_buffer_func_info));
 139         TDM_RETURN_VAL_IF_FAIL(func_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 140
 141         func_info->release_func = func;
 142         func_info->user_data = user_data;
 143
 144         LIST_ADDTAIL(&func_info->link, &buf_info->release_funcs);
 145
 146         return TDM_ERROR_NONE;
 147 }
 148
 149 EXTERN void
 150 tdm_buffer_remove_release_handler(tbm_surface_h buffer,
 151                                                                   tdm_buffer_release_handler func, void *user_data)
 152 {
 153         tdm_buffer_info *buf_info;
 154         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 155
 156         TDM_RETURN_IF_FAIL(buffer != NULL);
 157         TDM_RETURN_IF_FAIL(func != NULL);
 158
 159         buf_info = tdm_buffer_get_info(buffer);
 160         TDM_RETURN_IF_FAIL(buf_info != NULL);
 161
 162         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
 163                 if (func_info->release_func != func || func_info->user_data != user_data)
 164                         continue;
 165
 166                 LIST_DEL(&func_info->link);
 167                 free(func_info);
 168
 169                 return;
 170         }
 171 }
 172
 173 EXTERN tbm_surface_h
 174 tdm_buffer_ref_backend(tbm_surface_h buffer)
 175 {
 176         tdm_buffer_info *buf_info;
 177
 178         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, NULL);
 179
 180         buf_info = tdm_buffer_get_info(buffer);
 181         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, NULL);
 182
 183         buf_info->backend_ref_count++;
 184         tbm_surface_internal_ref(buffer);
 185
 186         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 187                 TDM_INFO("buffer(%p) backend_ref_count(%d)", buffer, buf_info->backend_ref_count);
 188
 189         return buffer;
 190 }
 191
 192 EXTERN void
 193 tdm_buffer_unref_backend(tbm_surface_h buffer)
 194 {
 195         tdm_buffer_info *buf_info;
 196         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 197
 198         TDM_RETURN_IF_FAIL(buffer != NULL);
 199
 200         buf_info = tdm_buffer_get_info(buffer);
 201         TDM_RETURN_IF_FAIL(buf_info != NULL);
 202
 203         buf_info->backend_ref_count--;
 204
 205         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 206                 TDM_INFO("buffer(%p) backend_ref_count(%d)", buffer, buf_info->backend_ref_count);
 207
 208         if (buf_info->backend_ref_count > 0) {
 209                 tbm_surface_internal_unref(buffer);
 210                 return;
 211         }
 212
 213         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 214                 TDM_INFO("buffer(%p) released", buffer);
 215
 216         tbm_surface_internal_ref(buffer);
 217         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link)
 218         func_info->release_func(buffer, func_info->user_data);
 219         tbm_surface_internal_unref(buffer);
 220
 221         tbm_surface_internal_unref(buffer);
 222 }
 223
 224 EXTERN tdm_error
 225 tdm_buffer_add_destroy_handler(tbm_surface_h buffer,
 226                                                            tdm_buffer_destroy_handler func, void *user_data)
 227 {
 228         tdm_buffer_info *buf_info;
 229         tdm_buffer_func_info *func_info = NULL;
 230
 231         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 232         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 233
 234         buf_info = tdm_buffer_get_info(buffer);
 235         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 236
 237         LIST_FOR_EACH_ENTRY(func_info, &buf_info->destroy_funcs, link) {
 238                 if (func_info->destroy_func == func && func_info->user_data == user_data) {
 239                         TDM_ERR("can't add twice");
 240                         return TDM_ERROR_BAD_REQUEST;
 241                 }
 242         }
 243
 244         func_info = calloc(1, sizeof(tdm_buffer_func_info));
 245         TDM_RETURN_VAL_IF_FAIL(func_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 246
 247         func_info->destroy_func = func;
 248         func_info->user_data = user_data;
 249
 250         LIST_ADDTAIL(&func_info->link, &buf_info->destroy_funcs);
 251
 252         return TDM_ERROR_NONE;
 253 }
 254
 255 EXTERN void
 256 tdm_buffer_remove_destroy_handler(tbm_surface_h buffer,
 257                                                                   tdm_buffer_destroy_handler func, void *user_data)
 258 {
 259         tdm_buffer_info *buf_info;
 260         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 261
 262         TDM_RETURN_IF_FAIL(buffer != NULL);
 263         TDM_RETURN_IF_FAIL(func != NULL);
 264
 265         buf_info = tdm_buffer_get_info(buffer);
 266         TDM_RETURN_IF_FAIL(buf_info != NULL);
 267
 268         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link) {
 269                 if (func_info->destroy_func != func || func_info->user_data != user_data)
 270                         continue;
 271
 272                 LIST_DEL(&func_info->link);
 273                 free(func_info);
 274
 275                 return;
 276         }
 277 }
 278