src/gallium/state_trackers/vega/api.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.9
   4  *
   5  * Copyright (C) 2010 LunarG Inc.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *    Chia-I Wu <olv@lunarg.com>
  27  */
  28
  29 #include "mapi/mapi.h"
  30
  31 #include "api.h"
  32
  33 static const char vega_spec[] =
  34    "1"
  35 #define MAPI_ABI_ENTRY(ret, name, params) \
  36    "\0" #name "\0"
  37 #define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
  38    #name "\0"
  39 #include "vgapi/vgapi_tmp.h"
  40    "\0";
  41
  42 static const mapi_proc vega_procs[] = {
  43 #define MAPI_ABI_ENTRY(ret, name, params) \
  44    (mapi_proc) vega ## name,
  45 #include "vgapi/vgapi_tmp.h"
  46 };
  47
  48 static void api_init(void)
  49 {
  50    static boolean initialized = FALSE;
  51    if (!initialized) {
  52       mapi_init(vega_spec);
  53       initialized = TRUE;
  54    }
  55 }
  56
  57 struct mapi_table *api_create_dispatch(void)
  58 {
  59    struct mapi_table *tbl;
  60
  61    api_init();
  62
  63    tbl = mapi_table_create();
  64    if (tbl)
  65       mapi_table_fill(tbl, vega_procs);
  66
  67    return tbl;
  68 }
  69
  70 void api_destroy_dispatch(struct mapi_table *tbl)
  71 {
  72    mapi_table_destroy(tbl);
  73 }
  74
  75 void api_make_dispatch_current(const struct mapi_table *tbl)
  76 {
  77    mapi_table_make_current(tbl);
  78 }
  79
  80 mapi_proc api_get_proc_address(const char *proc_name)
  81 {
  82    if (!proc_name || proc_name[0] != 'v' || proc_name[1] != 'g')
  83       return NULL;
  84    proc_name += 2;
  85
  86    api_init();
  87    return mapi_get_proc_address(proc_name);
  88 }