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.

5 files changed, 10 insertions, 10 deletions

diff --git a/source/blender/render/intern/include/render_types.h b/source/blender/render/intern/include/render_types.h
index 13ca40bfd20..0b339d285ce 100644
--- a/source/blender/render/intern/include/render_types.h
+++ b/source/blender/render/intern/include/render_types.h
@@ -338,7 +338,7 @@ typedef struct ObjectInstanceRen {
 	
 	struct VolumePrecache *volume_precache;
 	
-	float *vectors;
+	float *vectors; /* (RE_WINSPEED_ELEMS * VertRen.index) */
 	int totvector;
 	
 	/* used on makeraytree */
@@ -354,8 +354,8 @@ typedef struct VertRen
 	float co[3];
 	float n[3];
 	float *orco;
-	short clip;
-	unsigned short flag;		/* in use for clipping zbuffer parts, temp setting stuff in convertblender.c */
+	unsigned int flag;	/* in use for clipping zbuffer parts, temp setting stuff in convertblender.c
+						 * only an 'int' because of alignment, could be a char too */
 	float accum;		/* accum for radio weighting, and for strand texco static particles */
 	int index;			/* index allows extending vertren with any property */
 } VertRen;
diff --git a/source/blender/render/intern/include/rendercore.h b/source/blender/render/intern/include/rendercore.h
index 67c3cbcebe2..f9486b5d5c0 100644
--- a/source/blender/render/intern/include/rendercore.h
+++ b/source/blender/render/intern/include/rendercore.h
@@ -81,8 +81,8 @@ float   mistfactor(float zcor, float *co);	/* dist and height, return alpha */
 void	renderspothalo(struct ShadeInput *shi, float *col, float alpha);
 void	add_halo_flare(Render *re);
 
-void calc_renderco_zbuf(float *co, float *view, int z);
-void calc_renderco_ortho(float *co, float x, float y, int z);
+void calc_renderco_zbuf(float co[3], float *view, int z);
+void calc_renderco_ortho(float co[3], float x, float y, int z);
 
 int count_mask(unsigned short mask);
 
diff --git a/source/blender/render/intern/include/renderdatabase.h b/source/blender/render/intern/include/renderdatabase.h
index e1fa208d0b6..06185d0ae74 100644
--- a/source/blender/render/intern/include/renderdatabase.h
+++ b/source/blender/render/intern/include/renderdatabase.h
@@ -91,7 +91,7 @@ void free_renderdata_vertnodes(struct VertTableNode *vertnodes);
 void free_renderdata_vlaknodes(struct VlakTableNode *vlaknodes);
 
 void set_normalflags(struct Render *re, struct ObjectRen *obr);
-void project_renderdata(struct Render *re, void (*projectfunc)(float *, float mat[][4], float *),  int do_pano, float xoffs, int do_buckets);
+void project_renderdata(struct Render *re, void (*projectfunc)(const float *, float mat[][4], float *),  int do_pano, float xoffs, int do_buckets);
 int clip_render_object(float boundbox[][3], float *bounds, float mat[][4]);
 
 /* functions are not exported... so wrong names */
diff --git a/source/blender/render/intern/include/shading.h b/source/blender/render/intern/include/shading.h
index 07d24ea6d66..75d76c8ae23 100644
--- a/source/blender/render/intern/include/shading.h
+++ b/source/blender/render/intern/include/shading.h
@@ -63,7 +63,7 @@ void shade_volume_loop(struct ShadeInput *shi, struct ShadeResult *shr);
 void shade_input_set_triangle_i(struct ShadeInput *shi, struct ObjectInstanceRen *obi, struct VlakRen *vlr, short i1, short i2, short i3);
 void shade_input_set_triangle(struct ShadeInput *shi, volatile int obi, volatile int facenr, int normal_flip);
 void shade_input_copy_triangle(struct ShadeInput *shi, struct ShadeInput *from);
-void shade_input_calc_viewco(struct ShadeInput *shi, float x, float y, float z, float *view, float *dxyview, float *co, float *dxco, float *dyco);
+void shade_input_calc_viewco(struct ShadeInput *shi, float x, float y, float z, float view[3], float *dxyview, float *co, float *dxco, float *dyco);
 void shade_input_set_viewco(struct ShadeInput *shi, float x, float y, float sx, float sy, float z);
 void shade_input_set_uv(struct ShadeInput *shi);
 void shade_input_set_normals(struct ShadeInput *shi);
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]);