dali-scene-loader/public-api/alpha-function-helper.cpp

   1 /*
   2  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17 #include "dali-scene-loader/public-api/alpha-function-helper.h"
  18 #include <unordered_map>
  19
  20 namespace Dali
  21 {
  22 namespace SceneLoader
  23 {
  24 namespace
  25 {
  26 // clang-format off
  27 #define DALI_ALPHA_FUNCTION_ENTRY(x) { #x, AlphaFunction::x }
  28 // clang-format on
  29
  30 std::unordered_map<std::string, AlphaFunction> sFunctions{
  31   DALI_ALPHA_FUNCTION_ENTRY(DEFAULT),
  32   DALI_ALPHA_FUNCTION_ENTRY(LINEAR),
  33   DALI_ALPHA_FUNCTION_ENTRY(REVERSE),
  34   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_SQUARE),
  35   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_SQUARE),
  36   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN),
  37   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT),
  38   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_OUT),
  39   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_SINE),
  40   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_SINE),
  41   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_OUT_SINE),
  42   DALI_ALPHA_FUNCTION_ENTRY(BOUNCE),
  43   DALI_ALPHA_FUNCTION_ENTRY(SIN),
  44   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_BACK),
  45 };
  46
  47 #undef DALI_ALPHA_FUNCTION_ENTRY
  48
  49 } // namespace
  50
  51 AlphaFunction GetAlphaFunction(const std::string& name, bool* found)
  52 {
  53   auto iFind   = sFunctions.find(name);
  54   bool success = iFind != sFunctions.end();
  55   if(found)
  56   {
  57     *found = success;
  58   }
  59   return success ? iFind->second : AlphaFunction(AlphaFunction::DEFAULT);
  60 }
  61
  62 void RegisterAlphaFunction(const std::string& name, AlphaFunction alphaFn)
  63 {
  64   DALI_ASSERT_ALWAYS(sFunctions.insert({name, alphaFn}).second &&
  65                      "Function with given key already exists.");
  66 }
  67
  68 } // namespace SceneLoader
  69 } // namespace Dali