type: Rename mat33_t to mat33_float_t

Naming of many vector types and matrix types are not clear enough.
For example, we have:
  vector_3_t, which is a vector of three int.
  vec3_t, which is a vector of three float.
  size4_t, which is a vector of four size_t.
  mat33_t, which is a 3x3 matrix of float.
  matrix_3x3_t, which is a 3x3 matrix of fixed point.
Besides, we have types like int8_t, uint16_t types.

To clearly distinguished types, the CL propose to,

For vector types, naming should be `$type + 'v' + $num + '_t'`:
  vector_3_t becomes intv3_t
  vec3_t becomes floatv3_t
  vector 4 of uint16_t becomes uint16v4_t (which doesn't exist yet)

For matrix types, naming should be `mat$N$N_` + $type + '_t', where $N is the
matrix size:
  matrix_3x3_t becomes mat33_fp_t  # fp: fixed point
  mat33_t becomes mat33_float_t

TEST=make buildall -j
BUG=b:114662791

Change-Id: Ia601bfc9f9fb311f6ca91bfa2e8fa34259ed6c5b
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1215447
Commit-Ready: Yilun Lin <yllin@chromium.org>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>

1 files changed, 9 insertions, 8 deletions

diff --git a/include/mat33.h b/include/mat33.h
index 5dd77cbdb9..0b8b0123cb 100644
--- a/include/mat33.h
+++ b/include/mat33.h
@@ -10,21 +10,22 @@
 #include "vec3.h"
 #include "util.h"
 
-typedef float mat33_t[3][3];
+typedef float mat33_float_t[3][3];
 typedef size_t sizev3_t[3];
 
-void init_zero_matrix(mat33_t A);
-void init_diagonal_matrix(mat33_t A, float x);
+void init_zero_matrix(mat33_float_t A);
+void init_diagonal_matrix(mat33_float_t A, float x);
 
-void mat33_scalar_mul(mat33_t A, float c);
+void mat33_float_scalar_mul(mat33_float_t A, float c);
 
-void mat33_swap_rows(mat33_t A, const size_t i, const size_t j);
+void mat33_float_swap_rows(mat33_float_t A, const size_t i, const size_t j);
 
-void mat33_get_eigenbasis(mat33_t S, floatv3_t eigenvals, mat33_t eigenvecs);
+void mat33_float_get_eigenbasis(mat33_float_t S, floatv3_t eigenvals,
+				mat33_float_t eigenvecs);
 
-size_t mat33_maxind(mat33_t A, size_t k);
+size_t mat33_float_maxind(mat33_float_t A, size_t k);
 
-void mat33_rotate(mat33_t A, float c, float s,
+void mat33_float_rotate(mat33_float_t A, float c, float s,
 		  size_t k, size_t l, size_t i, size_t j);
 
 #endif  /* __CROS_EC_MAT_33_H */