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sfTransform is no longer a wrapper around a sf::Transform*, it is a simple structure

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Laurent Gomila committed 2012-05-22 17:56:01 +02:00
1 parent bf614690ad
commit bfebe0aab4
30 files changed
+179 -159
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include/SFML/Graphics/Transform.h
+27 -37
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@@ -34,15 +34,22 @@
#include <SFML/System/Vector2.h>
////////////////////////////////////////////////////////////
/// \brief Create a new transform
///
/// This function creates an identity transform.
///
/// \return A new sfTransform object
/// \brief Encapsulate a 3x3 transform matrix
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfTransform* sfTransform_create(void);
typedef struct
{
float matrix[9];
} sfTransform;
////////////////////////////////////////////////////////////
/// \brief Identity transform (does nothing)
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfTransform sfTransform_Identity;
////////////////////////////////////////////////////////////
/// \brief Create a new transform from a matrix
@@ -60,46 +67,29 @@ CSFML_GRAPHICS_API sfTransform* sfTransform_create(void);
/// \return A new sfTransform object
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfTransform* sfTransform_createFromMatrix(float a00, float a01, float a02,
float a10, float a11, float a12,
float a20, float a21, float a22);
////////////////////////////////////////////////////////////
/// \brief Copy an existing transform
///
/// \param transform Transform to copy
///
/// \return Copied object
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfTransform* sfTransform_copy(sfTransform* transform);
////////////////////////////////////////////////////////////
/// \brief Destroy an existing transform
///
/// \param transform Transform to delete
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API void sfTransform_destroy(sfTransform* transform);
CSFML_GRAPHICS_API sfTransform sfTransform_fromMatrix(float a00, float a01, float a02,
float a10, float a11, float a12,
float a20, float a21, float a22);
////////////////////////////////////////////////////////////
/// \brief Return the 4x4 matrix of a transform
///
/// This function returns a pointer to an array of 16 floats
/// containing the transform elements as a 4x4 matrix, which
/// is directly compatible with OpenGL functions.
/// This function fills an array of 16 floats with the transform
/// converted as a 4x4 matrix, which is directly compatible with
/// OpenGL functions.
///
/// \code
/// sfTransform* transform = ...;
/// glLoadMatrixf(sfTransform_getMatrix(transform));
/// sfTransform transform = ...;
/// float matrix[16];
/// sfTransform_getMatrix(&transform, matrix)
/// glLoadMatrixf(matrix);
/// \endcode
///
/// \param transform Transform object
///
/// \return Pointer to a 4x4 matrix
/// \param matrix Pointer to the 16-element array to fill with the matrix
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API const float* sfTransform_getMatrix(const sfTransform* transform);
CSFML_GRAPHICS_API void sfTransform_getMatrix(const sfTransform* transform, float* matrix);
////////////////////////////////////////////////////////////
/// \brief Return the inverse of a transform
@@ -108,10 +98,10 @@ CSFML_GRAPHICS_API const float* sfTransform_getMatrix(const sfTransform* transfo
/// is returned.
///
/// \param transform Transform object
/// \param result Returned inverse matrix
/// \return The inverse matrix
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API void sfTransform_getInverse(const sfTransform* transform, sfTransform* result);
CSFML_GRAPHICS_API sfTransform sfTransform_getInverse(const sfTransform* transform);
////////////////////////////////////////////////////////////
/// \brief Apply a transform to a 2D point