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.h"
  41 #include "tdm_private.h"
  42 #include "tdm_list.h"
  43
  44 static int tdm_buffer_key;
  45 #define TDM_BUFFER_KEY ((unsigned long)&tdm_buffer_key)
  46
  47 typedef struct _tdm_buffer_func_info {
  48         tdm_buffer_release_handler release_func;
  49         tdm_buffer_destroy_handler destroy_func;
  50         void *user_data;
  51
  52         struct list_head link;
  53 } tdm_buffer_func_info;
  54
  55 static void
  56 _tdm_buffer_destroy_info(void *user_data)
  57 {
  58         tdm_buffer_info *buf_info = (tdm_buffer_info *)user_data;
  59         tdm_buffer_func_info *func_info = NULL, *next = NULL;
  60
  61         if (buf_info->backend_ref_count > 0) {
  62                 TDM_NEVER_GET_HERE();
  63                 if (tdm_debug_buffer)
  64                         TDM_INFO("%p", buf_info->buffer);
  65         }
  66
  67         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
  68                 LIST_DEL(&func_info->link);
  69                 free(func_info);
  70         }
  71
  72         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link)
  73         func_info->destroy_func(buf_info->buffer, func_info->user_data);
  74
  75         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link) {
  76                 LIST_DEL(&func_info->link);
  77                 free(func_info);
  78         }
  79
  80         if (tdm_debug_buffer)
  81                 TDM_INFO("%p destroyed", buf_info->buffer);
  82
  83         free(buf_info);
  84 }
  85
  86 INTERN tdm_buffer_info *
  87 tdm_buffer_get_info(tbm_surface_h buffer)
  88 {
  89         tdm_buffer_info *buf_info = NULL;
  90
  91         if (!tbm_surface_internal_get_user_data(buffer, TDM_BUFFER_KEY, (void **)&buf_info)) {
  92                 buf_info = calloc(1, sizeof(tdm_buffer_info));
  93                 TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, NULL);
  94
  95                 buf_info->buffer = buffer;
  96
  97                 LIST_INITHEAD(&buf_info->release_funcs);
  98                 LIST_INITHEAD(&buf_info->destroy_funcs);
  99                 LIST_INITHEAD(&buf_info->link);
 100
 101                 if (!tbm_surface_internal_add_user_data(buffer, TDM_BUFFER_KEY, _tdm_buffer_destroy_info)) {
 102                         TDM_ERR("FAIL to create user_data for surface %p", buffer);
 103                         return NULL;
 104                 }
 105                 if (!tbm_surface_internal_set_user_data(buffer, TDM_BUFFER_KEY, buf_info)) {
 106                         TDM_ERR("FAIL to set user_data for surface %p", buffer);
 107                         return NULL;
 108                 }
 109
 110                 if (tdm_debug_buffer)
 111                         TDM_INFO("%p created", buf_info->buffer);
 112         }
 113
 114         return buf_info;
 115 }
 116
 117 EXTERN tdm_error
 118 tdm_buffer_add_release_handler(tbm_surface_h buffer,
 119                                                            tdm_buffer_release_handler func, void *user_data)
 120 {
 121         tdm_buffer_info *buf_info;
 122         tdm_buffer_func_info *func_info;
 123
 124         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 125         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 126
 127         buf_info = tdm_buffer_get_info(buffer);
 128         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 129
 130         func_info = calloc(1, sizeof(tdm_buffer_func_info));
 131         TDM_RETURN_VAL_IF_FAIL(func_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 132
 133         func_info->release_func = func;
 134         func_info->user_data = user_data;
 135
 136         LIST_ADD(&func_info->link, &buf_info->release_funcs);
 137
 138         return TDM_ERROR_NONE;
 139 }
 140
 141 EXTERN void
 142 tdm_buffer_remove_release_handler(tbm_surface_h buffer,
 143                                                                   tdm_buffer_release_handler func, void *user_data)
 144 {
 145         tdm_buffer_info *buf_info;
 146         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 147
 148         TDM_RETURN_IF_FAIL(buffer != NULL);
 149         TDM_RETURN_IF_FAIL(func != NULL);
 150
 151         buf_info = tdm_buffer_get_info(buffer);
 152         TDM_RETURN_IF_FAIL(buf_info != NULL);
 153
 154         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
 155                 if (func_info->release_func != func || func_info->user_data != user_data)
 156                         continue;
 157
 158                 LIST_DEL(&func_info->link);
 159                 free(func_info);
 160
 161                 return;
 162         }
 163 }
 164
 165
 166 EXTERN tbm_surface_h
 167 tdm_buffer_ref_backend(tbm_surface_h buffer)
 168 {
 169         tdm_buffer_info *buf_info;
 170
 171         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, NULL);
 172
 173         buf_info = tdm_buffer_get_info(buffer);
 174         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, NULL);
 175
 176         buf_info->backend_ref_count++;
 177         tbm_surface_internal_ref(buffer);
 178
 179         return buffer;
 180 }
 181
 182 EXTERN void
 183 tdm_buffer_unref_backend(tbm_surface_h buffer)
 184 {
 185         tdm_buffer_info *buf_info;
 186         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 187
 188         TDM_RETURN_IF_FAIL(buffer != NULL);
 189
 190         buf_info = tdm_buffer_get_info(buffer);
 191         TDM_RETURN_IF_FAIL(buf_info != NULL);
 192
 193         buf_info->backend_ref_count--;
 194         if (buf_info->backend_ref_count > 0) {
 195                 tbm_surface_internal_unref(buffer);
 196                 return;
 197         }
 198
 199         if (!tdm_thread_in_display_thread(syscall(SYS_gettid)))
 200                 TDM_NEVER_GET_HERE();
 201
 202         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->release_funcs, link) {
 203                 tbm_surface_internal_ref(buffer);
 204                 func_info->release_func(buffer, func_info->user_data);
 205                 tbm_surface_internal_unref(buffer);
 206         }
 207
 208         tbm_surface_internal_unref(buffer);
 209 }
 210
 211 EXTERN tdm_error
 212 tdm_buffer_add_destroy_handler(tbm_surface_h buffer,
 213                                                            tdm_buffer_destroy_handler func, void *user_data)
 214 {
 215         tdm_buffer_info *buf_info;
 216         tdm_buffer_func_info *func_info;
 217
 218         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 219         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 220
 221         buf_info = tdm_buffer_get_info(buffer);
 222         TDM_RETURN_VAL_IF_FAIL(buf_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 223
 224         func_info = calloc(1, sizeof(tdm_buffer_func_info));
 225         TDM_RETURN_VAL_IF_FAIL(func_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 226
 227         func_info->destroy_func = func;
 228         func_info->user_data = user_data;
 229
 230         LIST_ADD(&func_info->link, &buf_info->destroy_funcs);
 231
 232         return TDM_ERROR_NONE;
 233 }
 234
 235 EXTERN void
 236 tdm_buffer_remove_destroy_handler(tbm_surface_h buffer,
 237                                                                   tdm_buffer_destroy_handler func, void *user_data)
 238 {
 239         tdm_buffer_info *buf_info;
 240         tdm_buffer_func_info *func_info = NULL, *next = NULL;
 241
 242         TDM_RETURN_IF_FAIL(buffer != NULL);
 243         TDM_RETURN_IF_FAIL(func != NULL);
 244
 245         buf_info = tdm_buffer_get_info(buffer);
 246         TDM_RETURN_IF_FAIL(buf_info != NULL);
 247
 248         LIST_FOR_EACH_ENTRY_SAFE(func_info, next, &buf_info->destroy_funcs, link) {
 249                 if (func_info->destroy_func != func || func_info->user_data != user_data)
 250                         continue;
 251
 252                 LIST_DEL(&func_info->link);
 253                 free(func_info);
 254
 255                 return;
 256         }
 257 }
 258
 259 INTERN tbm_surface_h
 260 tdm_buffer_list_get_first_entry(struct list_head *list)
 261 {
 262         tdm_buffer_info *buf_info = NULL;
 263
 264         TDM_RETURN_VAL_IF_FAIL(list != NULL, NULL);
 265
 266         buf_info = container_of((list)->next, buf_info, link);
 267
 268         return buf_info->buffer;
 269 }
 270
 271 INTERN void
 272 tdm_buffer_list_dump(struct list_head *list)
 273 {
 274         tdm_buffer_info *buf_info = NULL;
 275         char str[256], *p;
 276         int len = sizeof(str);
 277
 278         TDM_RETURN_IF_FAIL(list != NULL);
 279
 280         p = str;
 281         LIST_FOR_EACH_ENTRY(buf_info, list, link) {
 282                 if (len > 0) {
 283                         int l = snprintf(p, len, " %p", buf_info->buffer);
 284                         p += l;
 285                         len -= l;
 286                 } else
 287                         break;
 288         }
 289
 290         TDM_INFO("\t %s", str);
 291 }