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Support for setting texture subdata.

vectorfields
Vladimír Vondruš 15 years ago
parent
0d2f2c966f
commit
d0044b960e
3 changed files with 106 additions and 0 deletions
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  1. 28
      src/AbstractTexture.h
  2. 63
      src/CubeMapTexture.h
  3. 15
      src/Texture.h

28
src/AbstractTexture.h
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@ -236,6 +236,22 @@ class AbstractTexture {
* on dimension count.
*/
template<class T> inline static void set(GLenum target, GLint mipLevel, int internalFormat, const Math::Vector<GLsizei, textureDimensions>& dimensions, ColorFormat colorFormat, const T* data);
/**
* @brief Set texture subdata
* @param target Target, such as @c GL_TEXTURE_RECTANGLE
* @param mipLevel Mip level
* @param offset Offset where to put data in the texture
* @param dimensions %Texture dimensions
* @param colorFormat Color format of passed data. Data size
* per color channel is detected from format of passed data
* array.
* @param data %Texture data
*
* Calls @c glTexSubImage1D, @c glTexSubImage2D, @c glTexSubImage3D
* depending on dimension count.
*/
template<class T> inline static void setSub(GLenum target, GLint mipLevel, const Math::Vector<GLsizei, textureDimensions>& offset, const Math::Vector<GLsizei, textureDimensions>& dimensions, ColorFormat colorFormat, const T* data);
#endif
};
@ -251,6 +267,10 @@ template<> struct AbstractTexture::DataHelper<1> {
template<class T> inline static void set(GLenum target, GLint mipLevel, int internalFormat, const Math::Vector<GLsizei, 1>& dimensions, ColorFormat colorFormat, const T* data) {
glTexImage1D(target, mipLevel, internalFormat, dimensions.at(0), 0, colorFormat, TypeTraits<T>::glType(), data);
}
template<class T> inline static void setSub(GLenum target, GLint mipLevel, const Math::Vector<GLsizei, 1>& offset, const Math::Vector<GLsizei, 1>& dimensions, ColorFormat colorFormat, const T* data) {
glTexSubImage1D(target, mipLevel, offset.at(0), dimensions.at(0), colorFormat, TypeTraits<T>::glType(), data);
}
};
template<> struct AbstractTexture::DataHelper<2> {
inline constexpr static GLenum target() { return GL_TEXTURE_2D; }
@ -258,6 +278,10 @@ template<> struct AbstractTexture::DataHelper<2> {
template<class T> inline static void set(GLenum target, GLint mipLevel, int internalFormat, const Math::Vector<GLsizei, 2>& dimensions, ColorFormat colorFormat, const T* data) {
glTexImage2D(target, mipLevel, internalFormat, dimensions.at(0), dimensions.at(1), 0, colorFormat, TypeTraits<T>::glType(), data);
}
template<class T> inline static void setSub(GLenum target, GLint mipLevel, const Math::Vector<GLsizei, 2>& offset, const Math::Vector<GLsizei, 2>& dimensions, ColorFormat colorFormat, const T* data) {
glTexSubImage2D(target, mipLevel, offset.at(0), offset.at(1), dimensions.at(0), dimensions.at(1), colorFormat, TypeTraits<T>::glType(), data);
}
};
template<> struct AbstractTexture::DataHelper<3> {
inline constexpr static GLenum target() { return GL_TEXTURE_3D; }
@ -265,6 +289,10 @@ template<> struct AbstractTexture::DataHelper<3> {
template<class T> inline static void set(GLenum target, GLint mipLevel, int internalFormat, const Math::Vector<GLsizei, 3>& dimensions, ColorFormat colorFormat, const T* data) {
glTexImage3D(target, mipLevel, internalFormat, dimensions.at(0), dimensions.at(1), dimensions.at(2), 0, colorFormat, TypeTraits<T>::glType(), data);
}
template<class T> inline static void setSub(GLenum target, GLint mipLevel, const Math::Vector<GLsizei, 2>& offset, const Math::Vector<GLsizei, 2>& dimensions, ColorFormat colorFormat, const T* data) {
glTexSubImage3D(target, mipLevel, offset.at(0), offset.at(1), offset.at(2), dimensions.at(0), dimensions.at(1), dimensions.at(2), colorFormat, TypeTraits<T>::glType(), data);
}
};
#endif

63
src/CubeMapTexture.h
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@ -58,6 +58,9 @@ class CubeMapTexture: public Texture2D {
/** @brief Deleted. Use setDataPositiveX() and others instead. */
template<class T> inline void setData(GLint mipLevel, int internalFormat, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) = delete;
/** @brief Deleted. Use setSubDataPositiveX() and others instead. */
template<class T> inline void setSubData(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) = delete;
/**
* @brief Set texture data for positive X
*
@ -67,6 +70,15 @@ class CubeMapTexture: public Texture2D {
setData(GL_TEXTURE_CUBE_MAP_POSITIVE_X, mipLevel, internalFormat, _dimensions, colorFormat, data);
}
/**
* @brief Set texture subdata for positive X
*
* @copydetails Texture::setSubData()
*/
template<class T> inline void setSubDataPositiveX(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
setSubData(GL_TEXTURE_CUBE_MAP_POSITIVE_X, mipLevel, offset, _dimensions, colorFormat, data);
}
/**
* @brief Set texture data for negative X
*
@ -76,6 +88,15 @@ class CubeMapTexture: public Texture2D {
setData(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, mipLevel, internalFormat, _dimensions, colorFormat, data);
}
/**
* @brief Set texture subdata for negative X
*
* @copydetails Texture::setSubData()
*/
template<class T> inline void setSubDataNegativeX(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
setSubData(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, mipLevel, offset, _dimensions, colorFormat, data);
}
/**
* @brief Set texture data for positive Y
*
@ -85,6 +106,15 @@ class CubeMapTexture: public Texture2D {
setData(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, mipLevel, internalFormat, _dimensions, colorFormat, data);
}
/**
* @brief Set texture subdata for positive Y
*
* @copydetails Texture::setSubData()
*/
template<class T> inline void setSubDataPositiveY(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
setSubData(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, mipLevel, offset, _dimensions, colorFormat, data);
}
/**
* @brief Set texture data for negative Y
*
@ -94,6 +124,15 @@ class CubeMapTexture: public Texture2D {
setData(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, mipLevel, internalFormat, _dimensions, colorFormat, data);
}
/**
* @brief Set texture subdata for negative Y
*
* @copydetails Texture::setSubData()
*/
template<class T> inline void setSubDataNegativeY(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
setSubData(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, mipLevel, offset, _dimensions, colorFormat, data);
}
/**
* @brief Set texture data for positive Z
*
@ -103,6 +142,15 @@ class CubeMapTexture: public Texture2D {
setData(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, mipLevel, internalFormat, _dimensions, colorFormat, data);
}
/**
* @brief Set texture subdata for positive Z
*
* @copydetails Texture::setSubData()
*/
template<class T> inline void setSubDataPositiveZ(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
setSubData(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, mipLevel, offset, _dimensions, colorFormat, data);
}
/**
* @brief Set texture data for negative Z
*
@ -112,12 +160,27 @@ class CubeMapTexture: public Texture2D {
setData(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, mipLevel, internalFormat, _dimensions, colorFormat, data);
}
/**
* @brief Set texture subdata for negative Z
*
* @copydetails Texture::setSubData()
*/
template<class T> inline void setSubDataNegativeZ(GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
setSubData(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, mipLevel, offset, _dimensions, colorFormat, data);
}
private:
template<class T> void setData(GLenum target, GLint mipLevel, int internalFormat, const Math::Vector<GLsizei, Dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
bind();
DataHelper<Dimensions>::template set<typename TypeTraits<T>::TextureType>(target, mipLevel, internalFormat, _dimensions, colorFormat, data);
unbind();
}
template<class T> void setSubData(GLenum target, GLint mipLevel, const Math::Vector<GLsizei, Dimensions>& offset, const Math::Vector<GLsizei, Dimensions>& dimensions, ColorFormat colorFormat, const T* data) {
bind();
DataHelper<Dimensions>::template setSub<typename TypeTraits<T>::TextureType>(target, mipLevel, dimensions, colorFormat, data);
unbind();
}
};
}

15
src/Texture.h
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@ -92,6 +92,21 @@ template<size_t dimensions> class Texture: public AbstractTexture {
DataHelper<dimensions>::template set<typename TypeTraits<T>::TextureType>(target, mipLevel, internalFormat, _dimensions, colorFormat, data);
unbind();
}
/**
* @brief Set texture subdata
* @param mipLevel
* @param offset Offset where to put data in the texture
* @param _dimensions %Texture dimensions
* @param colorFormat Color format of passed data. Data size per
* color channel is detected from format of passed data array.
* @param data %Texture data
*/
template<class T> inline void setSubData(GLint mipLevel, const Math::Vector<GLsizei, dimensions>& offset, const Math::Vector<GLsizei, dimensions>& _dimensions, ColorFormat colorFormat, const T* data) {
bind();
DataHelper<dimensions>::template setSub<typename TypeTraits<T>::TextureType>(target, mipLevel, offset, _dimensions, colorFormat, data);
unbind();
}
};
/** @brief One-dimensional texture */

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