dali-scene3d/public-api/loader/renderer-state.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/renderer-state.h>
  20
  21 // INTENRAL INCLUDES
  22 #include <dali-scene3d/public-api/loader/utils.h>
  23
  24 namespace Dali::Scene3D::Loader
  25 {
  26 namespace
  27 {
  28 // NOTE: values for BlendFactor aren't contiguous, hence we need a mapping.
  29 const Dali::BlendFactor::Type kBlendFactors[] = {
  30   Dali::BlendFactor::ZERO,
  31   Dali::BlendFactor::ONE,
  32   Dali::BlendFactor::SRC_COLOR,
  33   Dali::BlendFactor::ONE_MINUS_SRC_COLOR,
  34   Dali::BlendFactor::SRC_ALPHA,
  35   Dali::BlendFactor::ONE_MINUS_SRC_ALPHA,
  36   Dali::BlendFactor::DST_ALPHA,
  37   Dali::BlendFactor::ONE_MINUS_DST_ALPHA,
  38   Dali::BlendFactor::DST_COLOR,
  39   Dali::BlendFactor::ONE_MINUS_DST_COLOR,
  40   Dali::BlendFactor::SRC_ALPHA_SATURATE,
  41   Dali::BlendFactor::CONSTANT_COLOR,
  42   Dali::BlendFactor::ONE_MINUS_CONSTANT_COLOR,
  43   Dali::BlendFactor::CONSTANT_ALPHA,
  44   Dali::BlendFactor::ONE_MINUS_CONSTANT_ALPHA,
  45 };
  46 } // namespace
  47
  48 namespace RendererState
  49 {
  50 #define RENDERER_SET_PROPERTY(name, value) renderer.SetProperty(Renderer::Property::name, (value))
  51
  52 void Apply(Type rendererState, Renderer& renderer)
  53 {
  54   RENDERER_SET_PROPERTY(DEPTH_TEST_MODE, MaskMatch(rendererState, DEPTH_TEST) ? DepthTestMode::ON : DepthTestMode::OFF);
  55
  56   RENDERER_SET_PROPERTY(BLEND_MODE, MaskMatch(rendererState, ALPHA_BLEND) ? BlendMode::ON : BlendMode::USE_ACTOR_OPACITY);
  57
  58   const bool cullBack = MaskMatch(rendererState, CULL_BACK);
  59   RENDERER_SET_PROPERTY(FACE_CULLING_MODE, MaskMatch(rendererState, CULL_FRONT) ? (cullBack ? FaceCullingMode::FRONT_AND_BACK : FaceCullingMode::FRONT) : (cullBack ? FaceCullingMode::BACK : FaceCullingMode::NONE));
  60
  61   if(auto depthFunc = (rendererState & DEPTH_FUNCTION_MASK) >> DEPTH_FUNCTION_SHIFT)
  62   {
  63     RENDERER_SET_PROPERTY(DEPTH_FUNCTION, static_cast<DepthFunction::Type>(depthFunc - 1));
  64   }
  65
  66   if(auto blendFactors = (rendererState & BLEND_FACTOR_MASK) >> BLEND_FACTOR_BASE_SHIFT)
  67   {
  68     if(auto srcRgb = (blendFactors & BLEND_FACTOR_ITEM_MASK))
  69     {
  70       RENDERER_SET_PROPERTY(BLEND_FACTOR_SRC_RGB, kBlendFactors[static_cast<BlendFactor::Type>(srcRgb - 1)]);
  71     }
  72
  73     blendFactors >>= BLEND_FACTOR_ITEM_BITS;
  74     if(auto dstRgb = (blendFactors & BLEND_FACTOR_ITEM_MASK))
  75     {
  76       RENDERER_SET_PROPERTY(BLEND_FACTOR_DEST_RGB, kBlendFactors[static_cast<BlendFactor::Type>(dstRgb - 1)]);
  77     }
  78
  79     blendFactors >>= BLEND_FACTOR_ITEM_BITS;
  80     if(auto srcAlpha = (blendFactors & BLEND_FACTOR_ITEM_MASK))
  81     {
  82       RENDERER_SET_PROPERTY(BLEND_FACTOR_SRC_ALPHA, kBlendFactors[static_cast<BlendFactor::Type>(srcAlpha - 1)]);
  83     }
  84
  85     blendFactors >>= BLEND_FACTOR_ITEM_BITS;
  86     if(auto dstAlpha = (blendFactors & BLEND_FACTOR_ITEM_MASK))
  87     {
  88       RENDERER_SET_PROPERTY(BLEND_FACTOR_DEST_ALPHA, kBlendFactors[static_cast<BlendFactor::Type>(dstAlpha - 1)]);
  89     }
  90   }
  91
  92   if(auto bufferMode = (rendererState & BUFFER_MODE_MASK) >> BUFFER_MODE_SHIFT)
  93   {
  94     RENDERER_SET_PROPERTY(RENDER_MODE, static_cast<RenderMode::Type>(bufferMode - 1));
  95   }
  96 }
  97
  98 } // namespace RendererState
  99
 100 } // namespace Dali::Scene3D::Loader