Add a set of predicate functions for testing matrices instead of directly

testing the flags field.
Move definition of all the MAT_FLAGs into the m_matrix.c file since they're
now private.

1 files changed, 17 insertions, 73 deletions

diff --git a/src/mesa/math/m_matrix.h b/src/mesa/math/m_matrix.h
index 04a5a3c2bce..e8303f3ac5c 100644
--- a/src/mesa/math/m_matrix.h
+++ b/src/mesa/math/m_matrix.h
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.2
+ * Version:  6.3
  *
- * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -49,77 +49,6 @@
 
 
 /**
- * \defgroup MatFlags MAT_FLAG_XXX-flags
- *
- * Bitmasks to indicate different kinds of 4x4 matrices in GLmatrix::flags
- * It would be nice to make all these flags private to m_matrix.c
- */
-/*@{*/
-#define MAT_FLAG_IDENTITY       0     /**< is an identity matrix flag.
-                                       *   (Not actually used - the identity
-                                       *   matrix is identified by the absense
-                                       *   of all other flags.)
-                                       */
-#define MAT_FLAG_GENERAL        0x1   /**< is a general matrix flag */
-#define MAT_FLAG_ROTATION       0x2   /**< is a rotation matrix flag */
-#define MAT_FLAG_TRANSLATION    0x4   /**< is a translation matrix flag */
-#define MAT_FLAG_UNIFORM_SCALE  0x8   /**< is an uniform scaling matrix flag */
-#define MAT_FLAG_GENERAL_SCALE  0x10  /**< is a general scaling matrix flag */
-#define MAT_FLAG_GENERAL_3D     0x20  /**< general 3D matrix flag */
-#define MAT_FLAG_PERSPECTIVE    0x40  /**< is a perspective proj matrix flag */
-#define MAT_FLAG_SINGULAR       0x80  /**< is a singular matrix flag */
-#define MAT_DIRTY_TYPE          0x100  /**< matrix type is dirty */
-#define MAT_DIRTY_FLAGS         0x200  /**< matrix flags are dirty */
-#define MAT_DIRTY_INVERSE       0x400  /**< matrix inverse is dirty */
-
-/** angle preserving matrix flags mask */
-#define MAT_FLAGS_ANGLE_PRESERVING (MAT_FLAG_ROTATION | \
-				    MAT_FLAG_TRANSLATION | \
-				    MAT_FLAG_UNIFORM_SCALE)
-
-/** length preserving matrix flags mask */
-#define MAT_FLAGS_LENGTH_PRESERVING (MAT_FLAG_ROTATION | \
-				     MAT_FLAG_TRANSLATION)
-
-/** 3D (non-perspective) matrix flags mask */
-#define MAT_FLAGS_3D (MAT_FLAG_ROTATION | \
-		      MAT_FLAG_TRANSLATION | \
-		      MAT_FLAG_UNIFORM_SCALE | \
-		      MAT_FLAG_GENERAL_SCALE | \
-		      MAT_FLAG_GENERAL_3D)
-
-/** geometry related matrix flags mask */
-#define MAT_FLAGS_GEOMETRY (MAT_FLAG_GENERAL | \
-			    MAT_FLAG_ROTATION | \
-			    MAT_FLAG_TRANSLATION | \
-			    MAT_FLAG_UNIFORM_SCALE | \
-			    MAT_FLAG_GENERAL_SCALE | \
-			    MAT_FLAG_GENERAL_3D | \
-			    MAT_FLAG_PERSPECTIVE | \
-	                    MAT_FLAG_SINGULAR)
-
-/** dirty matrix flags mask */
-#define MAT_DIRTY          (MAT_DIRTY_TYPE | \
-			    MAT_DIRTY_FLAGS | \
-			    MAT_DIRTY_INVERSE)
-
-/*@}*/
-
-
-/** 
- * Test geometry related matrix flags.
- * 
- * \param mat a pointer to a GLmatrix structure.
- * \param a flags mask.
- *
- * \returns non-zero if all geometry related matrix flags are contained within
- * the mask, or zero otherwise.
- */ 
-#define TEST_MAT_FLAGS(mat, a)  \
-    ((MAT_FLAGS_GEOMETRY & (~(a)) & ((mat)->flags) ) == 0)
-
-
-/**
  * Different kinds of 4x4 transformation matrices.
  * We use these to select specific optimized vertex transformation routines.
  */
@@ -189,6 +118,10 @@ _math_matrix_frustum( GLmatrix *mat,
 		      GLfloat nearval, GLfloat farval );
 
 extern void
+_math_matrix_viewport(GLmatrix *m, GLint x, GLint y, GLint width, GLint height,
+                      GLfloat zNear, GLfloat zFar, GLfloat depthMax);
+
+extern void
 _math_matrix_set_identity( GLmatrix *dest );
 
 extern void
@@ -200,6 +133,17 @@ _math_matrix_analyse( GLmatrix *mat );
 extern void
 _math_matrix_print( const GLmatrix *m );
 
+extern GLboolean
+_math_matrix_is_length_preserving( const GLmatrix *m );
+
+extern GLboolean
+_math_matrix_has_rotation( const GLmatrix *m );
+
+extern GLboolean
+_math_matrix_is_general_scale( const GLmatrix *m );
+
+extern GLboolean
+_math_matrix_is_dirty( const GLmatrix *m );
 
 
 /**