Checkpoint: work on test

Signed-off-by: David Li <davidxli@google.com>

1 files changed, 217 insertions, 0 deletions

diff --git a/test/m_matrix.h b/test/m_matrix.h
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+/*
+ * Mesa 3-D graphics library
+ * Version:  6.3
+ *
+ * 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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * 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
+ * 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.
+ */
+
+
+/**
+ * \file math/m_matrix.h
+ * Defines basic structures for matrix-handling.
+ */
+
+#ifndef _M_MATRIX_H
+#define _M_MATRIX_H
+
+
+
+/**
+ * \name Symbolic names to some of the entries in the matrix
+ *
+ * These are handy for the viewport mapping, which is expressed as a matrix.
+ */
+/*@{*/
+#define MAT_SX 0
+#define MAT_SY 5
+#define MAT_SZ 10
+#define MAT_TX 12
+#define MAT_TY 13
+#define MAT_TZ 14
+/*@}*/
+
+
+/**
+ * Different kinds of 4x4 transformation matrices.
+ * We use these to select specific optimized vertex transformation routines.
+ */
+enum GLmatrixtype {
+    MATRIX_GENERAL,	/**< general 4x4 matrix */
+    MATRIX_IDENTITY,	/**< identity matrix */
+    MATRIX_3D_NO_ROT,	/**< orthogonal projection and others... */
+    MATRIX_PERSPECTIVE,	/**< perspective projection matrix */
+    MATRIX_2D,		/**< 2-D transformation */
+    MATRIX_2D_NO_ROT,	/**< 2-D scale & translate only */
+    MATRIX_3D		/**< 3-D transformation */
+} ;
+
+/**
+ * Matrix type to represent 4x4 transformation matrices.
+ */
+typedef struct {
+    GLfloat m[16];
+    //GLfloat *m;		/**< 16 matrix elements (16-byte aligned) */
+    GLfloat *inv;	/**< optional 16-element inverse (16-byte aligned) */
+    GLuint flags;        /**< possible values determined by (of \link
+     * MatFlags MAT_FLAG_* flags\endlink)
+     */
+    enum GLmatrixtype type;
+} GLmatrix;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+    
+    void
+    _math_matrix_ctr( GLmatrix *m );
+    
+    void
+    _math_matrix_dtr( GLmatrix *m );
+    
+    void
+    _math_matrix_alloc_inv( GLmatrix *m );
+    
+    void
+    _math_matrix_mul_matrix( GLmatrix *dest, const GLmatrix *a, const GLmatrix *b );
+    
+    void
+    _math_matrix_mul_floats( GLmatrix *dest, const GLfloat *b );
+    
+    void
+    _math_matrix_loadf( GLmatrix *mat, const GLfloat *m );
+    
+    void
+    _math_matrix_translate( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z );
+    
+    void
+    _math_matrix_rotate( GLmatrix *m, GLfloat angle,
+                        GLfloat x, GLfloat y, GLfloat z );
+    
+    void
+    _math_matrix_scale( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z );
+    
+    void
+    _math_matrix_ortho( GLmatrix *mat,
+                       GLfloat left, GLfloat right,
+                       GLfloat bottom, GLfloat top,
+                       GLfloat nearval, GLfloat farval );
+    
+    void
+    _math_matrix_perspective(GLmatrix * mat, GLfloat fovy, GLfloat aspect,
+                                  GLfloat zNear, GLfloat zFar);
+    
+    void 
+    _math_matrix_lookat(GLmatrix * mat, GLfloat eyex, GLfloat eyey, GLfloat eyez,
+                             GLfloat centerx, GLfloat centery, GLfloat centerz,
+                             GLfloat upx, GLfloat upy, GLfloat upz);
+    void
+    _math_matrix_frustum( GLmatrix *mat,
+                         GLfloat left, GLfloat right,
+                         GLfloat bottom, GLfloat top,
+                         GLfloat nearval, GLfloat farval );
+    
+    void
+    _math_matrix_viewport(GLmatrix *m, GLint x, GLint y, GLint width, GLint height,
+                          GLfloat zNear, GLfloat zFar, GLfloat depthMax);
+    
+    void
+    _math_matrix_set_identity( GLmatrix *dest );
+    
+    void
+    _math_matrix_copy( GLmatrix *to, const GLmatrix *from );
+    
+    void
+    _math_matrix_analyse( GLmatrix *mat );
+    
+    void
+    _math_matrix_print( const GLmatrix *m );
+    
+    GLboolean
+    _math_matrix_is_length_preserving( const GLmatrix *m );
+    
+    GLboolean
+    _math_matrix_has_rotation( const GLmatrix *m );
+    
+    GLboolean
+    _math_matrix_is_general_scale( const GLmatrix *m );
+    
+    GLboolean
+    _math_matrix_is_dirty( const GLmatrix *m );
+    
+    
+    /**
+     * \name Related functions that don't actually operate on GLmatrix structs
+     */
+    /*@{*/
+    
+    void
+    _math_transposef( GLfloat to[16], const GLfloat from[16] );
+    
+    void
+    _mesa_transform_vector(GLfloat u[4], const GLfloat v[4], const GLfloat m[16]);
+	
+#ifdef __cplusplus
+}
+#endif
+
+/*
+ * Transform a point (column vector) by a matrix:   Q = M * P
+ */
+#define TRANSFORM_POINT( Q, M, P )					\
+Q[0] = M[0] * P[0] + M[4] * P[1] + M[8] *  P[2] + M[12] * P[3];	\
+Q[1] = M[1] * P[0] + M[5] * P[1] + M[9] *  P[2] + M[13] * P[3];	\
+Q[2] = M[2] * P[0] + M[6] * P[1] + M[10] * P[2] + M[14] * P[3];	\
+Q[3] = M[3] * P[0] + M[7] * P[1] + M[11] * P[2] + M[15] * P[3];
+
+
+#define TRANSFORM_POINT3( Q, M, P )				\
+Q[0] = M[0] * P[0] + M[4] * P[1] + M[8] *  P[2] + M[12];	\
+Q[1] = M[1] * P[0] + M[5] * P[1] + M[9] *  P[2] + M[13];	\
+Q[2] = M[2] * P[0] + M[6] * P[1] + M[10] * P[2] + M[14];	\
+Q[3] = M[3] * P[0] + M[7] * P[1] + M[11] * P[2] + M[15];
+
+
+/*
+ * Transform a normal (row vector) by a matrix:  [NX NY NZ] = N * MAT
+ */
+#define TRANSFORM_NORMAL( TO, N, MAT )				\
+do {								\
+TO[0] = N[0] * MAT[0] + N[1] * MAT[1] + N[2] * MAT[2];	\
+TO[1] = N[0] * MAT[4] + N[1] * MAT[5] + N[2] * MAT[6];	\
+TO[2] = N[0] * MAT[8] + N[1] * MAT[9] + N[2] * MAT[10];	\
+} 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)
+
+
+/*@}*/
+
+
+#endif