add resize method to TextureBase

include/ACGL/OpenGL/Objects/Texture.hh

@@ -177,6 +177,11 @@ public:
     //! Generate mipmaps from the current base texture (i.e. the texture from level 0)
     void generateMipmaps(void);
 
+    void resize(const glm::uvec3& _size) { resizeI(glm::uvec3(_size.x, _size.y, _size.z)); }
+    void resize(const glm::uvec2& _size) { resizeI(glm::uvec3(_size.x, _size.y, 1      )); }
+    void resize(const glm::uvec1& _size) { resizeI(glm::uvec3(_size.x, 1,       1      )); }
+    void resize(      GLuint      _size) { resizeI(glm::uvec3(_size,   1,       1      )); }
+
 #ifndef ACGL_OPENGLES_VERSION_20
     //! get one texture image:
     TextureData *getTextureImageRAW( const Image &_image = Image(), GLenum _format = GL_RGBA, GLenum _type = GL_UNSIGNED_BYTE ) const;
@@ -229,6 +234,9 @@ protected:
     {
         return (mWidth != 0);
     }
+
+    //! Resizes the texture. Subclasses implementing this method may use only use the first entries of _size if they are of lower dimension
+    virtual void resizeI(const glm::uvec3& _size) = 0;
 };
 ACGL_SMARTPOINTER_TYPEDEFS(TextureBase)
 
@@ -270,7 +278,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const glm::uvec2 &_newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 
 private:
     void generateMipmaps(void) { ACGL::Utils::error() << "Rectangle Textures don't support MipMaps!" << std::endl; }
@@ -298,7 +306,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const uint32_t _newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 };
 ACGL_SMARTPOINTER_TYPEDEFS(Texture1D)
 
@@ -320,7 +328,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const glm::uvec2 &_newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 };
 ACGL_SMARTPOINTER_TYPEDEFS(Texture2D)
 
@@ -346,7 +354,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const glm::uvec3 &_newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 };
 ACGL_SMARTPOINTER_TYPEDEFS(Texture3D)
 
@@ -371,7 +379,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const glm::uvec2 &_newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 };
 ACGL_SMARTPOINTER_TYPEDEFS(Texture1DArray)
 
@@ -397,7 +405,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const glm::uvec3 &_newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 };
 ACGL_SMARTPOINTER_TYPEDEFS(Texture2DArray)
 
@@ -419,7 +427,7 @@ public:
 
     //! content of the texture is undefined after this, this texture will be bound to the active binding point
     //! nothing should be bound to the pixel unpack buffer when calling this
-    void resize( const glm::uvec2 &_newSize );
+    void resizeI( const glm::uvec3 &_newSize );
 
 private:
     bool cubeSideIsValid( const GLenum _cubeSide ) const;

src/ACGL/OpenGL/Objects/Texture.cc

@@ -329,7 +329,7 @@ TextureData *TextureBase::getTextureImageRAW( const Image &_image, GLenum _forma
 #endif // ES 2
 
 
-void TextureRectangle::resize( const glm::uvec2 &_newSize )
+void TextureRectangle::resizeI(const glm::uvec3 &_newSize )
 {
     if (_newSize.x != (unsigned int)mWidth || _newSize.y != (unsigned int)mHeight) {
         SharedTextureData sTexData( new TextureData() );
@@ -371,12 +371,12 @@ void Texture1D::setImageData( const SharedTextureData &_data, uint32_t _mipmapLa
     }
 }
 
-void Texture1D::resize( const uint32_t _newSize )
+void Texture1D::resizeI(const glm::uvec3 &_newSize )
 {
-    if (_newSize != (unsigned int)mWidth) {
+    if (_newSize.x != (unsigned int)mWidth) {
         SharedTextureData sTexData( new TextureData() );
         sTexData->setData  (NULL);
-        sTexData->setWidth (_newSize);
+        sTexData->setWidth (_newSize.x);
         sTexData->setFormat(getCompatibleFormat( mInternalFormat ));
         sTexData->setType  (getCompatibleType(   mInternalFormat ));
 
@@ -394,7 +394,7 @@ void Texture2D::setImageData( const SharedTextureData &_data, uint32_t _mipmapLa
     }
 }
 
-void Texture2D::resize( const glm::uvec2 &_newSize )
+void Texture2D::resizeI( const glm::uvec3 &_newSize )
 {
     if (_newSize.x != (unsigned int)mWidth || _newSize.y != (unsigned int)mHeight) {
         SharedTextureData sTexData( new TextureData() );
@@ -434,7 +434,7 @@ void Texture3D::setImageData( const SharedTextureData &_data, uint32_t _mipmapLa
     texSubImage3D( _data, _mipmapLayer, offset );
 }
 
-void Texture3D::resize( const glm::uvec3 &_newSize )
+void Texture3D::resizeI( const glm::uvec3 &_newSize )
 {
     if (_newSize.x != (unsigned int)mWidth || _newSize.y != (unsigned int)mHeight || _newSize.z != (unsigned int)mDepth) {
         SharedTextureData sTexData( new TextureData() );
@@ -479,7 +479,7 @@ void Texture1DArray::setImageData( const SharedTextureData &_data, uint32_t _mip
     texSubImage2D( _data, _mipmapLayer );
 }
 
-void Texture1DArray::resize( const glm::uvec2 &_newSize )
+void Texture1DArray::resizeI(const glm::uvec3 &_newSize )
 {
     if (_newSize.x != (unsigned int)mWidth || _newSize.y != (unsigned int)mHeight) {
         SharedTextureData sTexData( new TextureData() );
@@ -506,7 +506,7 @@ void Texture2DArray::setImageData( const SharedTextureData &_data, uint32_t _arr
     }
 }
 
-void Texture2DArray::resize( const glm::uvec3 &_newSize )
+void Texture2DArray::resizeI( const glm::uvec3 &_newSize )
 {
     if (_newSize.x != (unsigned int)mWidth || _newSize.y != (unsigned int)mHeight || _newSize.z != (unsigned int)mDepth) {
         SharedTextureData sTexData( new TextureData() );
@@ -539,7 +539,7 @@ void TextureCubeMap::setImageData( const SharedTextureData &_data, GLenum _cubeS
     //}
 }
 
-void TextureCubeMap::resize( const glm::uvec2 &_newSize )
+void TextureCubeMap::resizeI(const glm::uvec3 &_newSize )
 {
     if (_newSize.x != (unsigned int)mWidth || _newSize.y != (unsigned int)mHeight) {
         SharedTextureData sTexData( new TextureData() );