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 <sc1.lim@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;
 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         func_info = calloc(1, sizeof(tdm_buffer_func_info));
 132         TDM_RETURN_VAL_IF_FAIL(func_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 133
 134         func_info->release_func = func;
 135         func_info->user_data = user_data;
 136
 137         LIST_ADDTAIL(&func_info->link, &buf_info->release_funcs);
 138
 139         return TDM_ERROR_NONE;
 140 }
 141
 142 EXTERN void
 143 tdm_buffer_remove_release_handler(tbm_surface_h buffer,
 144                                                                   tdm_buffer_release_handler func, void *user_data)
 145 {
 146         tdm_buffer_info *buf_info;
 147         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 148
 149         TDM_RETURN_IF_FAIL(buffer != NULL);
 150         TDM_RETURN_IF_FAIL(func != NULL);
 151
 152         buf_info = tdm_buffer_get_info(buffer);
 153         TDM_RETURN_IF_FAIL(buf_info != NULL);
 154
 155         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
 156                 if (func_info->release_func != func || func_info->user_data != user_data)
 157                         continue;
 158
 159                 LIST_DEL(&func_info->link);
 160                 free(func_info);
 161
 162                 return;
 163         }
 164 }
 165
 166 INTERN void
 167 tdm_buffer_remove_release_handler_internal(tbm_surface_h buffer)
 168 {
 169         tdm_buffer_info *buf_info;
 170         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 171
 172         TDM_RETURN_IF_FAIL(buffer != NULL);
 173
 174         buf_info = tdm_buffer_get_info(buffer);
 175         TDM_RETURN_IF_FAIL(buf_info != NULL);
 176
 177         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
 178
 179                 LIST_DEL(&func_info->link);
 180                 free(func_info);
 181
 182                 return;
 183         }
 184 }
 185
 186 EXTERN tbm_surface_h
 187 tdm_buffer_ref_backend(tbm_surface_h buffer)
 188 {
 189         tdm_buffer_info *buf_info;
 190
 191         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, NULL);
 192
 193         buf_info = tdm_buffer_get_info(buffer);
 194         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, NULL);
 195
 196         buf_info->backend_ref_count++;
 197         tbm_surface_internal_ref(buffer);
 198
 199         return buffer;
 200 }
 201
 202 EXTERN void
 203 tdm_buffer_unref_backend(tbm_surface_h buffer)
 204 {
 205         tdm_buffer_info *buf_info;
 206         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 207
 208         TDM_RETURN_IF_FAIL(buffer != NULL);
 209
 210         buf_info = tdm_buffer_get_info(buffer);
 211         TDM_RETURN_IF_FAIL(buf_info != NULL);
 212
 213         buf_info->backend_ref_count--;
 214         if (buf_info->backend_ref_count > 0) {
 215                 tbm_surface_internal_unref(buffer);
 216                 return;
 217         }
 218
 219 //      if (!tdm_thread_in_display_thread(syscall(SYS_gettid)))
 220 //              TDM_NEVER_GET_HERE();
 221
 222         tbm_surface_internal_ref(buffer);
 223         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link)
 224         func_info->release_func(buffer, func_info->user_data);
 225         tbm_surface_internal_unref(buffer);
 226
 227         tbm_surface_internal_unref(buffer);
 228 }
 229
 230 EXTERN tdm_error
 231 tdm_buffer_add_destroy_handler(tbm_surface_h buffer,
 232                                                            tdm_buffer_destroy_handler func, void *user_data)
 233 {
 234         tdm_buffer_info *buf_info;
 235         tdm_buffer_func_info *func_info;
 236
 237         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 238         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 239
 240         buf_info = tdm_buffer_get_info(buffer);
 241         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 242
 243         func_info = calloc(1, sizeof(tdm_buffer_func_info));
 244         TDM_RETURN_VAL_IF_FAIL(func_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 245
 246         func_info->destroy_func = func;
 247         func_info->user_data = user_data;
 248
 249         LIST_ADDTAIL(&func_info->link, &buf_info->destroy_funcs);
 250
 251         return TDM_ERROR_NONE;
 252 }
 253
 254 EXTERN void
 255 tdm_buffer_remove_destroy_handler(tbm_surface_h buffer,
 256                                                                   tdm_buffer_destroy_handler func, void *user_data)
 257 {
 258         tdm_buffer_info *buf_info;
 259         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 260
 261         TDM_RETURN_IF_FAIL(buffer != NULL);
 262         TDM_RETURN_IF_FAIL(func != NULL);
 263
 264         buf_info = tdm_buffer_get_info(buffer);
 265         TDM_RETURN_IF_FAIL(buf_info != NULL);
 266
 267         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link) {
 268                 if (func_info->destroy_func != func || func_info->user_data != user_data)
 269                         continue;
 270
 271                 LIST_DEL(&func_info->link);
 272                 free(func_info);
 273
 274                 return;
 275         }
 276 }
 277
 278 INTERN tbm_surface_h
 279 tdm_buffer_list_get_first_entry(struct list_head *list)
 280 {
 281         tdm_buffer_info *buf_info = NULL;
 282
 283         TDM_RETURN_VAL_IF_FAIL(list != NULL, NULL);
 284
 285         if (LIST_IS_EMPTY(list))
 286                 return NULL;
 287
 288         buf_info = container_of((list)->next, buf_info, link);
 289
 290         return buf_info->buffer;
 291 }
 292
 293 INTERN void
 294 tdm_buffer_list_dump(struct list_head *list)
 295 {
 296         tdm_buffer_info *buf_info = NULL;
 297         char str[256], *p;
 298         int len = sizeof(str);
 299
 300         TDM_RETURN_IF_FAIL(list != NULL);
 301
 302         p = str;
 303         LIST_FOR_EACH_ENTRY(buf_info, list, link) {
 304                 if (len > 0) {
 305                         int l = snprintf(p, len, " %p", buf_info->buffer);
 306                         p += l;
 307                         len -= l;
 308                 } else
 309                         break;
 310         }
 311
 312         TDM_INFO("\t %s", str);
 313 }