type: Rename vec4_t to floatv4_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: Ia61493b9f7303c720fba50d6f481316c6d75cc79
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1215444
Commit-Ready: Yilun Lin <yllin@chromium.org>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/common/mat44.c b/common/mat44.c
index 0f7f371461..ddc586ec7a 100644
--- a/common/mat44.c
+++ b/common/mat44.c
@@ -55,13 +55,13 @@ void mat44_swap_rows(mat44_t A, const size_t i, const size_t j)
 	}
 }
 
-void mat44_solve(mat44_t A, vec4_t x, const vec4_t b, const size4_t pivot)
+void mat44_solve(mat44_t A, floatv4_t x, const floatv4_t b, const size4_t pivot)
 {
 	const size_t N = 4;
-	vec4_t b_copy;
+	floatv4_t b_copy;
 	size_t i, k;
 
-	memcpy(b_copy, b, sizeof(vec4_t));
+	memcpy(b_copy, b, sizeof(floatv4_t));
 
 	for (k = 0; k < N; ++k) {
 		if (pivot[k] != k) {