dali-scene3d/public-api/loader/alpha-function-helper.cpp

   1 /*
   2  * Copyright (c) 2023 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
  18 // CLASS HEADER
  19 #include <dali-scene3d/public-api/loader/alpha-function-helper.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <unordered_map>
  23
  24 namespace Dali::Scene3D::Loader
  25 {
  26 namespace
  27 {
  28 // clang-format off
  29 #define DALI_ALPHA_FUNCTION_ENTRY(x) { #x, AlphaFunction::x }
  30 // clang-format on
  31
  32 std::unordered_map<std::string, AlphaFunction>& GetFunctions()
  33 {
  34   static std::unordered_map<std::string, AlphaFunction> sFunctions{
  35     DALI_ALPHA_FUNCTION_ENTRY(DEFAULT),
  36     DALI_ALPHA_FUNCTION_ENTRY(LINEAR),
  37     DALI_ALPHA_FUNCTION_ENTRY(REVERSE),
  38     DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_SQUARE),
  39     DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_SQUARE),
  40     DALI_ALPHA_FUNCTION_ENTRY(EASE_IN),
  41     DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT),
  42     DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_OUT),
  43     DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_SINE),
  44     DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_SINE),
  45     DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_OUT_SINE),
  46     DALI_ALPHA_FUNCTION_ENTRY(BOUNCE),
  47     DALI_ALPHA_FUNCTION_ENTRY(SIN),
  48     DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_BACK),
  49   };
  50   return sFunctions;
  51 }
  52
  53 #undef DALI_ALPHA_FUNCTION_ENTRY
  54
  55 } // namespace
  56
  57 AlphaFunction GetAlphaFunction(const std::string& name, bool* found)
  58 {
  59   auto iFind   = GetFunctions().find(name);
  60   bool success = iFind != GetFunctions().end();
  61   if(found)
  62   {
  63     *found = success;
  64   }
  65   return success ? iFind->second : AlphaFunction(AlphaFunction::DEFAULT);
  66 }
  67
  68 void RegisterAlphaFunction(const std::string& name, AlphaFunction alphaFn)
  69 {
  70   DALI_ASSERT_ALWAYS(GetFunctions().insert({name, alphaFn}).second &&
  71                      "Function with given key already exists.");
  72 }
  73
  74 } // namespace Dali::Scene3D::Loader