Cleanup: Tracking, reduce scope of variables

Mainly affects for() loops.

The reason why loop parameter was declared outside of the loop roots
back to the times when not all compilers supported C99.

1 files changed, 2 insertions, 6 deletions

diff --git a/source/blender/blenkernel/intern/tracking_region_tracker.c b/source/blender/blenkernel/intern/tracking_region_tracker.c
index 1d6bb88c3f4..967642c03a8 100644
--- a/source/blender/blenkernel/intern/tracking_region_tracker.c
+++ b/source/blender/blenkernel/intern/tracking_region_tracker.c
@@ -50,9 +50,7 @@ static void float_rgba_to_gray(const float *rgba,
                                float weight_green,
                                float weight_blue)
 {
-  int i;
-
-  for (i = 0; i < num_pixels; i++) {
+  for (int i = 0; i < num_pixels; i++) {
     const float *pixel = rgba + 4 * i;
 
     gray[i] = weight_red * pixel[0] + weight_green * pixel[1] + weight_blue * pixel[2];
@@ -66,9 +64,7 @@ static void uint8_rgba_to_float_gray(const unsigned char *rgba,
                                      float weight_green,
                                      float weight_blue)
 {
-  int i;
-
-  for (i = 0; i < num_pixels; i++) {
+  for (int i = 0; i < num_pixels; i++) {
     const unsigned char *pixel = rgba + i * 4;
 
     gray[i] = (weight_red * pixel[0] + weight_green * pixel[1] + weight_blue * pixel[2]) / 255.0f;