mirror of
https://github.com/g-truc/glm.git
synced 2024-11-16 14:54:35 +00:00
d37d3539ed
- Increased assert coverage - Increased static_assert coverage - Replaced GLM traits by STL traits when possible - Allowed including individual core feature
305 lines
8.0 KiB
C++
305 lines
8.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// OpenGL Image Copyright (c) 2008 - 2011 G-Truc Creation (www.g-truc.net)
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Created : 2010-09-27
|
|
// Updated : 2010-09-27
|
|
// Licence : This source is under MIT License
|
|
// File : gli/core/texture2D.inl
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
namespace gli
|
|
{
|
|
namespace detail
|
|
{
|
|
inline texture2D::size_type sizeLinear
|
|
(
|
|
texture2D const & Texture
|
|
)
|
|
{
|
|
texture2D::size_type Result = 0;
|
|
for(texture2D::level_type Level = 0; Level < Texture.levels(); ++Level)
|
|
Result += sizeLinear(Texture[Level]);
|
|
return Result;
|
|
}
|
|
}//namespace detail
|
|
|
|
inline texture2D::texture2D()
|
|
{}
|
|
|
|
inline texture2D::texture2D
|
|
(
|
|
level_type const & Levels
|
|
)
|
|
{
|
|
this->Images.resize(Levels);
|
|
}
|
|
|
|
//inline texture2D::texture2D
|
|
//(
|
|
// image const & Mipmap,
|
|
// bool GenerateMipmaps // ToDo
|
|
//)
|
|
//{
|
|
// //std::size_t Levels = !GenerateMipmaps ? 1 : std::size_t(glm::log2(float(glm::max(Mipmap.width(), Mipmap.height()))));
|
|
// texture2D::level_type Levels = !GenerateMipmaps ? 1 : std::size_t(glm::log2(float(glm::compMax(Mipmap.dimensions()))));
|
|
// this->Mipmaps.resize(Levels);
|
|
// this->Mipmaps[0] = Mipmap;
|
|
|
|
// if(GenerateMipmaps)
|
|
// this->generateMipmaps(0);
|
|
//}
|
|
|
|
inline texture2D::~texture2D()
|
|
{}
|
|
|
|
inline image2D & texture2D::operator[] (level_type const & Level)
|
|
{
|
|
return this->Images[Level];
|
|
}
|
|
|
|
inline image2D const & texture2D::operator[] (level_type const & Level) const
|
|
{
|
|
return this->Images[Level];
|
|
}
|
|
|
|
inline bool texture2D::empty() const
|
|
{
|
|
return this->Images.size() == 0;
|
|
}
|
|
|
|
inline texture2D::format_type texture2D::format() const
|
|
{
|
|
return this->Images.empty() ? FORMAT_NULL : this->Images[0].format();
|
|
}
|
|
|
|
inline texture2D::level_type texture2D::levels() const
|
|
{
|
|
return this->Images.size();
|
|
}
|
|
|
|
inline void texture2D::resize
|
|
(
|
|
texture2D::level_type const & Levels
|
|
)
|
|
{
|
|
this->Images.resize(Levels);
|
|
}
|
|
|
|
template <typename genType>
|
|
inline void texture2D::swizzle(gli::comp X, gli::comp Y, gli::comp Z, gli::comp W)
|
|
{
|
|
for(texture2D::level_type Level = 0; Level < this->levels(); ++Level)
|
|
{
|
|
genType * Data = reinterpret_cast<genType*>(this->Images[Level].data());
|
|
texture2D::size_type Components = this->Images[Level].components();
|
|
//gli::detail::getComponents(this->Images[Level].format());
|
|
texture2D::size_type Size = (glm::compMul(this->Images[Level].dimensions()) * Components) / sizeof(genType);
|
|
|
|
for(texture2D::size_type i = 0; i < Size; ++i)
|
|
{
|
|
genType Copy = Data[i];
|
|
if(Components > 0)
|
|
Data[i][0] = Copy[X];
|
|
if(Components > 1)
|
|
Data[i][1] = Copy[Y];
|
|
if(Components > 2)
|
|
Data[i][2] = Copy[Z];
|
|
if(Components > 3)
|
|
Data[i][3] = Copy[W];
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
template <typename T>
|
|
inline T texture<T>::texture(float x, float y) const
|
|
{
|
|
size_type x_below = size_type(std::floor(x * (_width - 1)));
|
|
size_type x_above = size_type(std::ceil(x * (_width - 1)));
|
|
size_type y_below = size_type(std::floor(y * (_height - 1)));
|
|
size_type y_above = size_type(std::ceil(y * (_height - 1)));
|
|
|
|
float x_step = 1.0f / float(_width);
|
|
float y_step = 1.0f / float(_height);
|
|
|
|
float x_below_normalized = float(x_below) / float(_width - 1);
|
|
float x_above_normalized = float(x_above) / float(_width - 1);
|
|
float y_below_normalized = float(y_below) / float(_height - 1);
|
|
float y_above_normalized = float(y_above) / float(_height - 1);
|
|
|
|
T value1 = _data[x_below + y_below * _width];
|
|
T value2 = _data[x_above + y_below * _width];
|
|
T value3 = _data[x_above + y_above * _width];
|
|
T value4 = _data[x_below + y_above * _width];
|
|
|
|
T valueA = glm::mix(value1, value2, x - x_below_normalized);
|
|
T valueB = glm::mix(value4, value3, x - x_below_normalized);
|
|
T valueC = glm::mix(valueA, valueB, y - y_below_normalized);
|
|
return valueC;
|
|
}
|
|
*/
|
|
/*
|
|
template <typename T>
|
|
inline T texture(const texture2D<T>& Image2D, const glm::vec2& TexCoord)
|
|
{
|
|
texture2D<T>::size_type s_below = texture2D<T>::size_type(std::floor(TexCoord.s * (Image2D.width() - 1)));
|
|
texture2D<T>::size_type s_above = texture2D<T>::size_type(std::ceil(TexCoord.s * (Image2D.width() - 1)));
|
|
texture2D<T>::size_type t_below = texture2D<T>::size_type(std::floor(TexCoord.t * (Image2D.height() - 1)));
|
|
texture2D<T>::size_type t_above = texture2D<T>::size_type(std::ceil(TexCoord.t * (Image2D.height() - 1)));
|
|
|
|
glm::vec2::value_type s_step = 1.0f / glm::vec2::value_type(Image2D.width());
|
|
glm::vec2::value_type t_step = 1.0f / glm::vec2::value_type(Image2D.height());
|
|
|
|
glm::vec2::value_type s_below_normalized = glm::vec2::value_type(s_below) / glm::vec2::value_type(Image2D.width() - 1);
|
|
glm::vec2::value_type s_above_normalized = glm::vec2::value_type(s_above) / glm::vec2::value_type(Image2D.width() - 1);
|
|
glm::vec2::value_type t_below_normalized = glm::vec2::value_type(t_below) / glm::vec2::value_type(Image2D.height() - 1);
|
|
glm::vec2::value_type t_above_normalized = glm::vec2::value_type(t_above) / glm::vec2::value_type(Image2D.height() - 1);
|
|
|
|
T value1 = Image2D[s_below + t_below * Image2D.width()];
|
|
T value2 = Image2D[s_above + t_below * Image2D.width()];
|
|
T value3 = Image2D[s_above + t_above * Image2D.width()];
|
|
T value4 = Image2D[s_below + t_above * Image2D.width()];
|
|
|
|
T valueA = glm::mix(value1, value2, TexCoord.s - s_below_normalized);
|
|
T valueB = glm::mix(value4, value3, TexCoord.s - s_below_normalized);
|
|
T valueC = glm::mix(valueA, valueB, TexCoord.t - t_below_normalized);
|
|
return valueC;
|
|
}
|
|
|
|
template <typename T>
|
|
inline T textureNearest(const texture2D<T>& Image2D, const glm::vec2& TexCoord)
|
|
{
|
|
texture2D<T>::size_type s = texture2D<T>::size_type(glm::roundGTX(TexCoord.s * (Image2D.width() - 1)));
|
|
texture2D<T>::size_type t = texture2D<T>::size_type(std::roundGTX(TexCoord.t * (Image2D.height() - 1)));
|
|
|
|
return Image2D[s + t * Image2D.width()];
|
|
}
|
|
*/
|
|
|
|
namespace wip
|
|
{
|
|
////////////////
|
|
// image
|
|
/*
|
|
//
|
|
template
|
|
<
|
|
typename coordType
|
|
>
|
|
template
|
|
<
|
|
typename genType,
|
|
template <typename> class surface
|
|
>
|
|
typename texture2D<genType, surface>::value_type &
|
|
texture2D<genType, surface>::image_impl<coordType>::operator()
|
|
(
|
|
coordType const & Coord
|
|
)
|
|
{
|
|
|
|
}
|
|
*/
|
|
/*
|
|
//
|
|
template
|
|
<
|
|
typename coordType
|
|
>
|
|
template
|
|
<
|
|
typename genType,
|
|
template <typename> class surface
|
|
>
|
|
typename texture2D<genType, surface>::value_type const &
|
|
texture2D<genType, surface>::image_impl::operator()
|
|
(
|
|
coordType const & Coord
|
|
) const
|
|
{
|
|
return value_type(0);
|
|
}
|
|
*/
|
|
/*
|
|
//
|
|
template
|
|
<
|
|
typename coordType
|
|
>
|
|
template
|
|
<
|
|
typename genType,
|
|
template <typename> class surface
|
|
>
|
|
void texture2D<genType, surface>::image_impl::operator()
|
|
(
|
|
coordType const & Coord
|
|
) const
|
|
{
|
|
|
|
}
|
|
*/
|
|
////
|
|
//template
|
|
//<
|
|
// typename genType,
|
|
// template <typename> class surface
|
|
//>
|
|
//template
|
|
//<
|
|
// typename coordType
|
|
//>
|
|
//typename texture2D<genType, surface>::value_type const &
|
|
//texture2D<genType, surface>::image_impl::operator()
|
|
//(
|
|
// coordType const & Coord
|
|
//) const
|
|
//{
|
|
// return value_type(0);
|
|
//}
|
|
|
|
//////////////////
|
|
//// texture2D
|
|
|
|
////
|
|
//template
|
|
//<
|
|
// typename genType,
|
|
// template <typename> class surface
|
|
//>
|
|
//typename texture2D<genType, surface>::level_type texture2D<genType, surface>::levels() const
|
|
//{
|
|
// return this->Mipmaps.size();
|
|
//}
|
|
|
|
////
|
|
//template
|
|
//<
|
|
// typename genType,
|
|
// template <typename> class surface
|
|
//>
|
|
//typename texture2D<genType, surface>::image & texture2D<genType, surface>::operator[]
|
|
//(
|
|
// typename texture2D<genType, surface>::level_type Level
|
|
//)
|
|
//{
|
|
// return this->Mipmaps[Level];
|
|
//}
|
|
|
|
////
|
|
//template
|
|
//<
|
|
// typename genType,
|
|
// template <typename> class surface
|
|
//>
|
|
//typename texture2D<genType, surface>::image const & texture2D<genType, surface>::operator[]
|
|
//(
|
|
// typename texture2D<genType, surface>::level_type Level
|
|
//) const
|
|
//{
|
|
// return this->Mipmaps[Level];
|
|
//}
|
|
|
|
}//namespace wip
|
|
}//namespace gli
|