268 lines
7.4 KiB
Text
268 lines
7.4 KiB
Text
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namespace gli{
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namespace detail
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{
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inline void duplicate_images
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(
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texture const & Src, texture & Dst,
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texture::size_type BaseLayer, texture::size_type MaxLayer,
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texture::size_type BaseFace, texture::size_type MaxFace,
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texture::size_type BaseLevel, texture::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLayer >= 0 && BaseLayer <= MaxLayer && MaxLayer < Src.layers());
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GLI_ASSERT(BaseFace >= 0 && BaseFace <= MaxFace && MaxFace < Src.faces());
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GLI_ASSERT(BaseLevel >= 0 && BaseLevel <= MaxLevel && MaxLevel < Src.levels());
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texture::size_type LevelsSize = 0;
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for(texture::size_type LevelIndex = 0; LevelIndex < MaxLevel - BaseLevel + 1; ++LevelIndex)
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{
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GLI_ASSERT(Dst.size(LevelIndex) == Src.size(LevelIndex));
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LevelsSize += Dst.size(LevelIndex);
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}
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for(texture::size_type LayerIndex = 0, LayerCount = MaxLayer - BaseLayer + 1; LayerIndex < LayerCount; ++LayerIndex)
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for(texture::size_type FaceIndex = 0, FaceCount = MaxFace - BaseFace + 1; FaceIndex < FaceCount; ++FaceIndex)
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{
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memcpy(Dst.data(LayerIndex, FaceIndex, BaseLevel), Src.data(BaseLayer + LayerIndex, BaseFace + FaceIndex, BaseLevel), LevelsSize);
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}
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}
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}//namespace detail
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inline image duplicate(image const & Image)
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{
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image Result(Image.format(), Image.extent());
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memcpy(Result.data(), Image.data(), Image.size());
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return Result;
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}
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template <>
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inline texture duplicate(texture const & Texture)
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{
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texture Duplicate(
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Texture.target(),
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Texture.format(),
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Texture.extent(),
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Texture.layers(),
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Texture.faces(),
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Texture.levels());
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detail::duplicate_images(
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Texture, Duplicate,
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0, Texture.layers() - 1,
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0, Texture.faces() - 1,
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0, Texture.levels() - 1);
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return Duplicate;
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}
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template <typename texType>
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inline texture duplicate(texType const & Texture)
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{
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texture Duplicate(
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Texture.target(),
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Texture.format(),
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Texture.texture::extent(),
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Texture.layers(),
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Texture.faces(),
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Texture.levels());
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detail::duplicate_images(
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Texture, Duplicate,
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0, Texture.layers() - 1,
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0, Texture.faces() - 1,
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0, Texture.levels() - 1);
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return Duplicate;
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}
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template <typename texType>
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inline texture duplicate(texType const & Texture, typename texType::format_type Format)
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{
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GLI_ASSERT(block_size(Texture.format()) == block_size(Format));
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texture Duplicate(
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Texture.target(),
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Format,
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Texture.extent(),
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Texture.layers(),
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Texture.faces(),
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Texture.levels());
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detail::duplicate_images(
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Texture, Duplicate,
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0, Texture.layers() - 1,
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0, Texture.faces() - 1,
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0, Texture.levels() - 1);
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return Duplicate;
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}
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inline texture duplicate
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(
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texture1d const & Texture,
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texture1d::size_type BaseLevel, texture1d::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel <= MaxLevel);
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GLI_ASSERT(BaseLevel < Texture.levels());
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GLI_ASSERT(MaxLevel < Texture.levels());
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texture1d Duplicate(
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Texture.format(),
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Texture.extent(BaseLevel),
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MaxLevel - BaseLevel + 1);
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memcpy(Duplicate.data(), Texture.data(0, 0, BaseLevel), Duplicate.size());
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return Duplicate;
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}
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inline texture duplicate
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(
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texture1d_array const & Texture,
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texture1d_array::size_type BaseLayer, texture1d_array::size_type MaxMayer,
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texture1d_array::size_type BaseLevel, texture1d_array::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel <= MaxLevel);
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GLI_ASSERT(BaseLevel < Texture.levels());
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GLI_ASSERT(MaxLevel < Texture.levels());
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GLI_ASSERT(BaseLayer <= MaxMayer);
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GLI_ASSERT(BaseLayer < Texture.layers());
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GLI_ASSERT(MaxMayer < Texture.layers());
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texture1d_array Duplicate(
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Texture.format(),
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Texture[BaseLayer].extent(BaseLevel),
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MaxMayer - BaseLayer + 1,
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MaxLevel - BaseLevel + 1);
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for(texture1d_array::size_type Layer = 0; Layer < Duplicate.layers(); ++Layer)
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memcpy(Duplicate.data(Layer, 0, 0), Texture.data(Layer + BaseLayer, 0, BaseLevel), Duplicate[Layer].size());
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return Duplicate;
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}
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inline texture duplicate
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(
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texture2d const & Texture,
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texture2d::size_type BaseLevel, texture2d::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel <= MaxLevel);
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GLI_ASSERT(BaseLevel < Texture.levels());
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GLI_ASSERT(MaxLevel < Texture.levels());
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texture2d Duplicate(
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Texture.format(),
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Texture.extent(BaseLevel),
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MaxLevel - BaseLevel + 1);
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memcpy(Duplicate.data(), Texture.data(0, 0, BaseLevel), Duplicate.size());
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return Duplicate;
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}
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inline texture duplicate
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(
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texture2d_array const & Texture,
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texture2d_array::size_type BaseLayer, texture2d_array::size_type MaxMayer,
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texture2d_array::size_type BaseLevel, texture2d_array::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel <= MaxLevel);
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GLI_ASSERT(BaseLevel < Texture.levels());
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GLI_ASSERT(MaxLevel < Texture.levels());
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GLI_ASSERT(BaseLayer <= MaxMayer);
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GLI_ASSERT(BaseLayer < Texture.layers());
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GLI_ASSERT(MaxMayer < Texture.layers());
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texture2d_array Duplicate(
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Texture.format(),
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Texture.extent(BaseLevel),
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MaxMayer - BaseLayer + 1,
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MaxLevel - BaseLevel + 1);
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for(texture2d_array::size_type Layer = 0; Layer < Duplicate.layers(); ++Layer)
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memcpy(Duplicate.data(Layer, 0, 0), Texture.data(Layer + BaseLayer, 0, BaseLevel), Duplicate[Layer].size());
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return Duplicate;
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}
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inline texture duplicate
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(
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texture3d const & Texture,
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texture3d::size_type BaseLevel, texture3d::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel <= MaxLevel);
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GLI_ASSERT(BaseLevel < Texture.levels());
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GLI_ASSERT(MaxLevel < Texture.levels());
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texture3d Duplicate(
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Texture.format(),
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Texture.extent(BaseLevel),
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MaxLevel - BaseLevel + 1);
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memcpy(Duplicate.data(), Texture.data(0, 0, BaseLevel), Duplicate.size());
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return Duplicate;
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}
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inline texture duplicate
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(
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texture_cube const & Texture,
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texture_cube::size_type BaseFace, texture_cube::size_type MaxFace,
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texture_cube::size_type BaseLevel, texture_cube::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel >= 0 && BaseLevel < Texture.levels() && BaseLevel <= MaxLevel && MaxLevel < Texture.levels());
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GLI_ASSERT(BaseFace <= MaxFace);
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GLI_ASSERT(BaseFace < Texture.faces());
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GLI_ASSERT(MaxFace < Texture.faces());
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texture_cube Duplicate(
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Texture.format(),
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Texture[BaseFace].extent(BaseLevel),
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MaxLevel - BaseLevel + 1);
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for(texture_cube::size_type Face = 0; Face < Duplicate.faces(); ++Face)
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memcpy(Duplicate[Face].data(), Texture[Face + BaseFace][BaseLevel].data(), Duplicate[Face].size());
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return Duplicate;
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}
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inline texture duplicate
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(
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texture_cube_array const & Texture,
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texture_cube_array::size_type BaseLayer, texture_cube_array::size_type MaxLayer,
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texture_cube_array::size_type BaseFace, texture_cube_array::size_type MaxFace,
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texture_cube_array::size_type BaseLevel, texture_cube_array::size_type MaxLevel
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)
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{
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GLI_ASSERT(BaseLevel <= MaxLevel);
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GLI_ASSERT(BaseLevel < Texture.levels());
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GLI_ASSERT(MaxLevel < Texture.levels());
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GLI_ASSERT(BaseFace <= MaxFace);
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GLI_ASSERT(BaseFace < Texture.faces());
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GLI_ASSERT(MaxFace < Texture.faces());
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GLI_ASSERT(BaseLayer <= MaxLayer);
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GLI_ASSERT(BaseLayer < Texture.layers());
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GLI_ASSERT(MaxLayer < Texture.layers());
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texture_cube_array Duplicate(
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Texture.format(),
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Texture[BaseLayer][BaseFace].extent(BaseLevel),
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MaxLayer - BaseLayer + 1,
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MaxLevel - BaseLevel + 1);
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for(texture_cube_array::size_type Layer = 0; Layer < Duplicate.layers(); ++Layer)
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for(texture_cube_array::size_type Face = 0; Face < Duplicate[Layer].faces(); ++Face)
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memcpy(Duplicate[Layer][Face].data(), Texture[Layer + BaseLayer][Face + BaseFace][BaseLevel].data(), Duplicate[Layer][Face].size());
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return Duplicate;
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}
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}//namespace gli
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