minor edits / cleanup - no functional changes.

- use 'const float *' and array size in some function declarations.
- replace macros for BLI_math functions INPF, VECCOPY, VECADD etc.
- remove unused VertRen.clip struct member.
- remove static squared_dist() from 2 files, replace with BLI_math function len_squared_v3v3().
- use vertex arrays for drawing clipping background in the 3D viewport.

1 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/render/intern/include/zbuf.h b/source/blender/render/intern/include/zbuf.h
index 4c87520d4d1..0d129081d62 100644
--- a/source/blender/render/intern/include/zbuf.h
+++ b/source/blender/render/intern/include/zbuf.h
@@ -51,9 +51,9 @@ void fillrect(int *rect, int x, int y, int val);
  * Converts a world coordinate into a homogenous coordinate in view
  * coordinates. 
  */
-void projectvert(float *v1, float winmat[][4], float *adr);
-void projectverto(float *v1, float winmat[][4], float *adr);
-int testclip(float *v); 
+void projectvert(const float v1[3], float winmat[][4], float adr[4]);
+void projectverto(const float v1[3], float winmat[][4], float adr[4]);
+int testclip(const float v[3]);
 
 void zbuffer_shadow(struct Render *re, float winmat[][4], struct LampRen *lar, int *rectz, int size, float jitx, float jity);
 void zbuffer_abuf_shadow(struct Render *re, struct LampRen *lar, float winmat[][4], struct APixstr *APixbuf, struct APixstrand *apixbuf, struct ListBase *apsmbase, int size, int samples, float (*jit)[2]);