* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#define _M_MATRIX_H
+#include "main/glheader.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/**
* \name Symbolic names to some of the entries in the matrix
*/
typedef struct {
GLfloat *m; /**< 16 matrix elements (16-byte aligned) */
- GLfloat *inv; /**< optional 16-element inverse (16-byte aligned) */
+ GLfloat *inv; /**< 16-element inverse (16-byte aligned) */
GLuint flags; /**< possible values determined by (of \link
* MatFlags MAT_FLAG_* flags\endlink)
*/
extern void
_math_matrix_dtr( GLmatrix *m );
-extern void
-_math_matrix_alloc_inv( GLmatrix *m );
-
extern void
_math_matrix_mul_matrix( GLmatrix *dest, const GLmatrix *a, const GLmatrix *b );
} while (0)
+/**
+ * Transform a direction by a matrix.
+ */
+#define TRANSFORM_DIRECTION( TO, DIR, MAT ) \
+do { \
+ TO[0] = DIR[0] * MAT[0] + DIR[1] * MAT[4] + DIR[2] * MAT[8]; \
+ TO[1] = DIR[0] * MAT[1] + DIR[1] * MAT[5] + DIR[2] * MAT[9]; \
+ TO[2] = DIR[0] * MAT[2] + DIR[1] * MAT[6] + DIR[2] * MAT[10];\
+} while (0)
+
+
+extern void
+_mesa_transform_vector(GLfloat u[4], const GLfloat v[4], const GLfloat m[16]);
+
+
/*@}*/
+#ifdef __cplusplus
+}
+#endif
+
#endif