Cleanup: pass arrays const where possible

27 files changed, 69 insertions, 39 deletions

diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c
index 72ea52314b9..69a05c9ae31 100644
--- a/source/blender/editors/curve/editcurve.c
+++ b/source/blender/editors/curve/editcurve.c
@@ -1716,7 +1716,10 @@ static bool isNurbselV(Nurb *nu, int *u, int flag)
   return 1;
 }
 
-static void rotateflagNurb(ListBase *editnurb, short flag, const float cent[3], float rotmat[3][3])
+static void rotateflagNurb(ListBase *editnurb,
+                           short flag,
+                           const float cent[3],
+                           const float rotmat[3][3])
 {
   /* all verts with (flag & 'flag') rotate */
   Nurb *nu;
diff --git a/source/blender/editors/gpencil/annotate_paint.c b/source/blender/editors/gpencil/annotate_paint.c
index b45a324bc67..30e4fe0b531 100644
--- a/source/blender/editors/gpencil/annotate_paint.c
+++ b/source/blender/editors/gpencil/annotate_paint.c
@@ -271,7 +271,7 @@ static void annotation_get_3d_reference(tGPsdata *p, float vec[3])
 /* Stroke Editing ---------------------------- */
 
 /* check if the current mouse position is suitable for adding a new point */
-static bool annotation_stroke_filtermval(tGPsdata *p, const float mval[2], float pmval[2])
+static bool annotation_stroke_filtermval(tGPsdata *p, const float mval[2], const float pmval[2])
 {
   int dx = (int)fabsf(mval[0] - pmval[0]);
   int dy = (int)fabsf(mval[1] - pmval[1]);
diff --git a/source/blender/editors/gpencil/gpencil_paint.c b/source/blender/editors/gpencil/gpencil_paint.c
index de58a0916b2..611fe158948 100644
--- a/source/blender/editors/gpencil/gpencil_paint.c
+++ b/source/blender/editors/gpencil/gpencil_paint.c
@@ -362,7 +362,7 @@ static void gpencil_get_3d_reference(tGPsdata *p, float vec[3])
 
 /* Stroke Editing ---------------------------- */
 /* check if the current mouse position is suitable for adding a new point */
-static bool gpencil_stroke_filtermval(tGPsdata *p, const float mval[2], float mvalo[2])
+static bool gpencil_stroke_filtermval(tGPsdata *p, const float mval[2], const float mvalo[2])
 {
   Brush *brush = p->brush;
   int dx = (int)fabsf(mval[0] - mvalo[0]);
@@ -3269,7 +3269,7 @@ static void gpencil_brush_angle_segment(tGPsdata *p, tGPspoint *pt_prev, tGPspoi
  *  + PtA - 1
  * /
  * CTL is the vertice of the triangle created between PtA and PtB */
-static void gpencil_add_arc_points(tGPsdata *p, float mval[2], int segments)
+static void gpencil_add_arc_points(tGPsdata *p, const float mval[2], int segments)
 {
   bGPdata *gpd = p->gpd;
   BrushGpencilSettings *brush_settings = p->brush->gpencil_settings;
diff --git a/source/blender/editors/gpencil/gpencil_primitive.c b/source/blender/editors/gpencil/gpencil_primitive.c
index f44dbd1a752..28ea9535a80 100644
--- a/source/blender/editors/gpencil/gpencil_primitive.c
+++ b/source/blender/editors/gpencil/gpencil_primitive.c
@@ -378,7 +378,10 @@ static void gpencil_primitive_add_segment(tGPDprimitive *tgpi)
 }
 
 /* Helper: set control point */
-static void gpencil_primitive_set_cp(tGPDprimitive *tgpi, float p[2], float color[4], int size)
+static void gpencil_primitive_set_cp(tGPDprimitive *tgpi,
+                                     const float p[2],
+                                     float color[4],
+                                     int size)
 {
   if (tgpi->flag == IN_PROGRESS) {
     return;
diff --git a/source/blender/editors/gpencil/gpencil_utils.c b/source/blender/editors/gpencil/gpencil_utils.c
index 339e97bd71c..aaf88e1a0b0 100644
--- a/source/blender/editors/gpencil/gpencil_utils.c
+++ b/source/blender/editors/gpencil/gpencil_utils.c
@@ -1723,7 +1723,7 @@ void ED_gpencil_vgroup_deselect(bContext *C, Object *ob)
 /* Cursor drawing */
 
 /* check if cursor is in drawing region */
-static bool gpencil_check_cursor_region(bContext *C, int mval_i[2])
+static bool gpencil_check_cursor_region(bContext *C, const int mval_i[2])
 {
   ARegion *region = CTX_wm_region(C);
   ScrArea *area = CTX_wm_area(C);
@@ -2311,7 +2311,9 @@ static void gpencil_insert_point(
   MEM_SAFE_FREE(temp_points);
 }
 
-static float gpencil_calc_factor(float p2d_a1[2], float p2d_a2[2], float r_hit2d[2])
+static float gpencil_calc_factor(const float p2d_a1[2],
+                                 const float p2d_a2[2],
+                                 const float r_hit2d[2])
 {
   float dist1 = len_squared_v2v2(p2d_a1, p2d_a2);
   float dist2 = len_squared_v2v2(p2d_a1, r_hit2d);
diff --git a/source/blender/editors/interface/interface_eyedropper_gpencil_color.c b/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
index 978d8ac09de..aa5b4d2c255 100644
--- a/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
+++ b/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
@@ -106,8 +106,11 @@ static void eyedropper_gpencil_exit(bContext *C, wmOperator *op)
   MEM_SAFE_FREE(op->customdata);
 }
 
-static void eyedropper_add_material(
-    bContext *C, float col_conv[4], const bool only_stroke, const bool only_fill, const bool both)
+static void eyedropper_add_material(bContext *C,
+                                    const float col_conv[4],
+                                    const bool only_stroke,
+                                    const bool only_fill,
+                                    const bool both)
 {
   Main *bmain = CTX_data_main(C);
   Object *ob = CTX_data_active_object(C);
@@ -193,7 +196,7 @@ static void eyedropper_add_material(
 }
 
 /* Create a new palette color and palette if needed. */
-static void eyedropper_add_palette_color(bContext *C, float col_conv[4])
+static void eyedropper_add_palette_color(bContext *C, const float col_conv[4])
 {
   Main *bmain = CTX_data_main(C);
   Scene *scene = CTX_data_scene(C);
diff --git a/source/blender/editors/mesh/editmesh_rip.c b/source/blender/editors/mesh/editmesh_rip.c
index 89a90dcf12d..62c646a81e4 100644
--- a/source/blender/editors/mesh/editmesh_rip.c
+++ b/source/blender/editors/mesh/editmesh_rip.c
@@ -343,8 +343,11 @@ static BMVert *edbm_ripsel_edloop_pair_start_vert(BMEdge *e)
   return (edbm_ripsel_edge_uid_step(e, &v_test)) ? e->v1 : e->v2;
 }
 
-static void edbm_ripsel_deselect_helper(
-    BMesh *bm, EdgeLoopPair *eloop_pairs, ARegion *region, float projectMat[4][4], float fmval[2])
+static void edbm_ripsel_deselect_helper(BMesh *bm,
+                                        EdgeLoopPair *eloop_pairs,
+                                        ARegion *region,
+                                        float projectMat[4][4],
+                                        const float fmval[2])
 {
   EdgeLoopPair *lp;
 
diff --git a/source/blender/editors/sculpt_paint/paint_cursor.c b/source/blender/editors/sculpt_paint/paint_cursor.c
index e559d2120e2..f0d01305e96 100644
--- a/source/blender/editors/sculpt_paint/paint_cursor.c
+++ b/source/blender/editors/sculpt_paint/paint_cursor.c
@@ -875,7 +875,7 @@ BLI_INLINE void draw_rect_point(uint pos,
   imm_draw_box_wire_2d(pos, minx, miny, maxx, maxy);
 }
 
-BLI_INLINE void draw_bezier_handle_lines(uint pos, float sel_col[4], BezTriple *bez)
+BLI_INLINE void draw_bezier_handle_lines(uint pos, const float sel_col[4], BezTriple *bez)
 {
   immUniformColor4f(0.0f, 0.0f, 0.0f, 0.5f);
   GPU_line_width(3.0f);
diff --git a/source/blender/editors/sculpt_paint/paint_image_proj.c b/source/blender/editors/sculpt_paint/paint_image_proj.c
index fa9a0854112..d16c66848b8 100644
--- a/source/blender/editors/sculpt_paint/paint_image_proj.c
+++ b/source/blender/editors/sculpt_paint/paint_image_proj.c
@@ -2928,7 +2928,7 @@ static void project_bucket_clip_face(const bool is_ortho,
 
 /* checks if pt is inside a convex 2D polyline, the polyline must be ordered rotating clockwise
  * otherwise it would have to test for mixed (line_point_side_v2 > 0.0f) cases */
-static bool IsectPoly2Df(const float pt[2], float uv[][2], const int tot)
+static bool IsectPoly2Df(const float pt[2], const float uv[][2], const int tot)
 {
   int i;
   if (line_point_side_v2(uv[tot - 1], uv[0], pt) < 0.0f) {
@@ -2943,7 +2943,7 @@ static bool IsectPoly2Df(const float pt[2], float uv[][2], const int tot)
 
   return true;
 }
-static bool IsectPoly2Df_twoside(const float pt[2], float uv[][2], const int tot)
+static bool IsectPoly2Df_twoside(const float pt[2], const float uv[][2], const int tot)
 {
   const bool side = (line_point_side_v2(uv[tot - 1], uv[0], pt) > 0.0f);
 
diff --git a/source/blender/editors/sculpt_paint/paint_mask.c b/source/blender/editors/sculpt_paint/paint_mask.c
index c255cbcaaab..7e5825835fb 100644
--- a/source/blender/editors/sculpt_paint/paint_mask.c
+++ b/source/blender/editors/sculpt_paint/paint_mask.c
@@ -389,7 +389,7 @@ typedef struct LassoMaskData {
  * Lasso select. This could be defined as part of #VIEW3D_OT_select_lasso,
  * still the shortcuts conflict, so we will use a separate operator.
  */
-static bool is_effected_lasso(LassoMaskData *data, float co[3])
+static bool is_effected_lasso(LassoMaskData *data, const float co[3])
 {
   float scr_co_f[2];
   int scr_co_s[2];
diff --git a/source/blender/editors/sculpt_paint/paint_stroke.c b/source/blender/editors/sculpt_paint/paint_stroke.c
index b9361726826..38a09cd97bd 100644
--- a/source/blender/editors/sculpt_paint/paint_stroke.c
+++ b/source/blender/editors/sculpt_paint/paint_stroke.c
@@ -1198,7 +1198,10 @@ static void paint_line_strokes_spacing(bContext *C,
   *length_residue = length;
 }
 
-static void paint_stroke_line_end(bContext *C, wmOperator *op, PaintStroke *stroke, float mouse[2])
+static void paint_stroke_line_end(bContext *C,
+                                  wmOperator *op,
+                                  PaintStroke *stroke,
+                                  const float mouse[2])
 {
   Brush *br = stroke->brush;
   if (stroke->stroke_started && (br->flag & BRUSH_LINE)) {
diff --git a/source/blender/editors/sculpt_paint/paint_utils.c b/source/blender/editors/sculpt_paint/paint_utils.c
index af5afa80eb8..b7e5a73cbb3 100644
--- a/source/blender/editors/sculpt_paint/paint_utils.c
+++ b/source/blender/editors/sculpt_paint/paint_utils.c
@@ -238,7 +238,7 @@ void paint_stroke_operator_properties(wmOperatorType *ot)
 
 /* 3D Paint */
 
-static void imapaint_project(float matrix[4][4], const float co[3], float pco[4])
+static void imapaint_project(const float matrix[4][4], const float co[3], float pco[4])
 {
   copy_v3_v3(pco, co);
   pco[3] = 1.0f;
diff --git a/source/blender/editors/space_clip/clip_buttons.c b/source/blender/editors/space_clip/clip_buttons.c
index 71f75d96cb1..80ce07d39ef 100644
--- a/source/blender/editors/space_clip/clip_buttons.c
+++ b/source/blender/editors/space_clip/clip_buttons.c
@@ -273,7 +273,7 @@ typedef struct {
   int marker_flag;
 } MarkerUpdateCb;
 
-static void to_pixel_space(float r[2], float a[2], int width, int height)
+static void to_pixel_space(float r[2], const float a[2], int width, int height)
 {
   copy_v2_v2(r, a);
   r[0] *= width;
diff --git a/source/blender/editors/space_clip/clip_dopesheet_draw.c b/source/blender/editors/space_clip/clip_dopesheet_draw.c
index c3aca95910b..c7328ae9f8f 100644
--- a/source/blender/editors/space_clip/clip_dopesheet_draw.c
+++ b/source/blender/editors/space_clip/clip_dopesheet_draw.c
@@ -49,7 +49,9 @@
 
 #include "clip_intern.h" /* own include */
 
-static void track_channel_color(MovieTrackingTrack *track, float default_color[3], float color[3])
+static void track_channel_color(MovieTrackingTrack *track,
+                                const float default_color[3],
+                                float color[3])
 {
   if (track->flag & TRACK_CUSTOMCOLOR) {
     float bg[3];
diff --git a/source/blender/editors/space_clip/clip_graph_ops.c b/source/blender/editors/space_clip/clip_graph_ops.c
index 63d9889e662..ffd3241a30f 100644
--- a/source/blender/editors/space_clip/clip_graph_ops.c
+++ b/source/blender/editors/space_clip/clip_graph_ops.c
@@ -178,7 +178,7 @@ static void mouse_select_init_data(bContext *C, MouseSelectUserData *userdata, c
   copy_v2_v2(userdata->mouse_co, co);
 }
 
-static bool mouse_select_knot(bContext *C, float co[2], bool extend)
+static bool mouse_select_knot(bContext *C, const float co[2], bool extend)
 {
   SpaceClip *sc = CTX_wm_space_clip(C);
   MovieClip *clip = ED_space_clip_get_clip(sc);
@@ -236,7 +236,7 @@ static bool mouse_select_knot(bContext *C, float co[2], bool extend)
   return false;
 }
 
-static bool mouse_select_curve(bContext *C, float co[2], bool extend)
+static bool mouse_select_curve(bContext *C, const float co[2], bool extend)
 {
   SpaceClip *sc = CTX_wm_space_clip(C);
   MovieClip *clip = ED_space_clip_get_clip(sc);
diff --git a/source/blender/editors/space_clip/tracking_select.c b/source/blender/editors/space_clip/tracking_select.c
index 615d09a04b2..80d0dd773b2 100644
--- a/source/blender/editors/space_clip/tracking_select.c
+++ b/source/blender/editors/space_clip/tracking_select.c
@@ -744,7 +744,9 @@ static int point_inside_ellipse(const float point[2],
   return x * x + y * y < 1.0f;
 }
 
-static int marker_inside_ellipse(MovieTrackingMarker *marker, float offset[2], float ellipse[2])
+static int marker_inside_ellipse(MovieTrackingMarker *marker,
+                                 const float offset[2],
+                                 const float ellipse[2])
 {
   return point_inside_ellipse(marker->pos, offset, ellipse);
 }
diff --git a/source/blender/editors/space_nla/nla_draw.c b/source/blender/editors/space_nla/nla_draw.c
index 96599fd92a7..97939a93d01 100644
--- a/source/blender/editors/space_nla/nla_draw.c
+++ b/source/blender/editors/space_nla/nla_draw.c
@@ -378,7 +378,7 @@ static void nla_draw_strip_curves(NlaStrip *strip, float yminc, float ymaxc, uin
 }
 
 /* helper call to setup dashed-lines for strip outlines */
-static uint nla_draw_use_dashed_outlines(float color[4], bool muted)
+static uint nla_draw_use_dashed_outlines(const float color[4], bool muted)
 {
   /* Note that we use dashed shader here, and make it draw solid lines if not muted... */
   uint shdr_pos = GPU_vertformat_attr_add(
diff --git a/source/blender/editors/space_node/node_relationships.c b/source/blender/editors/space_node/node_relationships.c
index 9110d82fb84..a09c70b794a 100644
--- a/source/blender/editors/space_node/node_relationships.c
+++ b/source/blender/editors/space_node/node_relationships.c
@@ -1004,7 +1004,7 @@ void NODE_OT_link_make(wmOperatorType *ot)
 }
 
 /* ********************** Cut Link operator ***************** */
-static bool cut_links_intersect(bNodeLink *link, float mcoords[][2], int tot)
+static bool cut_links_intersect(bNodeLink *link, const float mcoords[][2], int tot)
 {
   float coord_array[NODE_LINK_RESOL + 1][2];
   int i, b;
diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index f17d7ccd136..1ffa653372c 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -69,7 +69,7 @@ static const float cosval[CIRCLE_RESOL] = {
     0.82076344,  0.91895781,  0.97952994,  1.00000000,
 };
 
-static void circball_array_fill(float verts[CIRCLE_RESOL][3],
+static void circball_array_fill(const float verts[CIRCLE_RESOL][3],
                                 const float cent[3],
                                 float rad,
                                 const float tmat[4][4])
diff --git a/source/blender/editors/space_view3d/view3d_edit.c b/source/blender/editors/space_view3d/view3d_edit.c
index 19aa9cb203b..ac9d12cdd58 100644
--- a/source/blender/editors/space_view3d/view3d_edit.c
+++ b/source/blender/editors/space_view3d/view3d_edit.c
@@ -2500,7 +2500,10 @@ static bool viewdolly_offset_lock_check(bContext *C, wmOperator *op)
   return false;
 }
 
-static void view_dolly_to_vector_3d(ARegion *region, float orig_ofs[3], float dvec[3], float dfac)
+static void view_dolly_to_vector_3d(ARegion *region,
+                                    const float orig_ofs[3],
+                                    const float dvec[3],
+                                    float dfac)
 {
   RegionView3D *rv3d = region->regiondata;
   madd_v3_v3v3fl(rv3d->ofs, orig_ofs, dvec, -(1.0f - dfac));
diff --git a/source/blender/editors/space_view3d/view3d_placement.c b/source/blender/editors/space_view3d/view3d_placement.c
index b79632f0a82..a828dbc2ee0 100644
--- a/source/blender/editors/space_view3d/view3d_placement.c
+++ b/source/blender/editors/space_view3d/view3d_placement.c
@@ -246,7 +246,7 @@ static bool idp_poject_surface_normal(SnapObjectContext *snap_context,
 /** \name Primitive Drawing (Cube, Cone, Cylinder...)
  * \{ */
 
-static void draw_line_loop(float coords[][3], int coords_len, const float color[4])
+static void draw_line_loop(const float coords[][3], int coords_len, const float color[4])
 {
   GPUVertFormat *format = immVertexFormat();
   uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
@@ -279,7 +279,7 @@ static void draw_line_loop(float coords[][3], int coords_len, const float color[
   GPU_blend(false);
 }
 
-static void draw_line_pairs(float coords_a[][3],
+static void draw_line_pairs(const float coords_a[][3],
                             float coords_b[][3],
                             int coords_len,
                             const float color[4])
diff --git a/source/blender/editors/transform/transform_constraints.c b/source/blender/editors/transform/transform_constraints.c
index e15239f37d4..d0e37f22236 100644
--- a/source/blender/editors/transform/transform_constraints.c
+++ b/source/blender/editors/transform/transform_constraints.c
@@ -388,7 +388,7 @@ void transform_constraint_snap_axis_to_face(const TransInfo *t,
  * Return true if the 2x axis are both aligned when projected into the view.
  * In this case, we can't usefully project the cursor onto the plane.
  */
-static bool isPlaneProjectionViewAligned(const TransInfo *t, float plane[4])
+static bool isPlaneProjectionViewAligned(const TransInfo *t, const float plane[4])
 {
   const float eps = 0.001f;
   float view_to_plane[3];
diff --git a/source/blender/editors/transform/transform_mode.c b/source/blender/editors/transform/transform_mode.c
index 38d49ab5efd..495c21bc755 100644
--- a/source/blender/editors/transform/transform_mode.c
+++ b/source/blender/editors/transform/transform_mode.c
@@ -178,7 +178,7 @@ static void protectedRotateBits(short protectflag, float eul[3], const float old
 /* this function only does the delta rotation */
 /* axis-angle is usually internally stored as quats... */
 static void protectedAxisAngleBits(
-    short protectflag, float axis[3], float *angle, float oldAxis[3], float oldAngle)
+    short protectflag, float axis[3], float *angle, const float oldAxis[3], float oldAngle)
 {
   /* check that protection flags are set */
   if ((protectflag & (OB_LOCK_ROTX | OB_LOCK_ROTY | OB_LOCK_ROTZ | OB_LOCK_ROTW)) == 0) {
@@ -896,7 +896,7 @@ void headerResize(TransInfo *t, const float vec[3], char str[UI_MAX_DRAW_STR])
  *
  * \note this is a tricky area, before making changes see: T29633, T42444
  */
-static void TransMat3ToSize(float mat[3][3], float smat[3][3], float size[3])
+static void TransMat3ToSize(const float mat[3][3], const float smat[3][3], float size[3])
 {
   float rmat[3][3];
 
diff --git a/source/blender/editors/transform/transform_mode_bbone_resize.c b/source/blender/editors/transform/transform_mode_bbone_resize.c
index 2c2253630c0..80a5b307a91 100644
--- a/source/blender/editors/transform/transform_mode_bbone_resize.c
+++ b/source/blender/editors/transform/transform_mode_bbone_resize.c
@@ -87,7 +87,10 @@ static void headerBoneSize(TransInfo *t, const float vec[3], char str[UI_MAX_DRA
   }
 }
 
-static void ElementBoneSize(TransInfo *t, TransDataContainer *tc, TransData *td, float mat[3][3])
+static void ElementBoneSize(TransInfo *t,
+                            TransDataContainer *tc,
+                            TransData *td,
+                            const float mat[3][3])
 {
   float tmat[3][3], smat[3][3], oldy;
   float sizemat[3][3];
diff --git a/source/blender/editors/transform/transform_snap_object.c b/source/blender/editors/transform/transform_snap_object.c
index 8079795d306..50b7c6d147b 100644
--- a/source/blender/editors/transform/transform_snap_object.c
+++ b/source/blender/editors/transform/transform_snap_object.c
@@ -1302,11 +1302,11 @@ static bool test_projected_edge_dist(const struct DistProjectedAABBPrecalc *prec
  * \{ */
 
 typedef void (*Nearest2DGetVertCoCallback)(const int index, const float **co, void *data);
-typedef void (*Nearest2DGetEdgeVertsCallback)(const int index, int v_index[2], void *data);
-typedef void (*Nearest2DGetTriVertsCallback)(const int index, int v_index[3], void *data);
+typedef void (*Nearest2DGetEdgeVertsCallback)(const int index, const int v_index[2], void *data);
+typedef void (*Nearest2DGetTriVertsCallback)(const int index, const int v_index[3], void *data);
 /* Equal the previous one */
-typedef void (*Nearest2DGetTriEdgesCallback)(const int index, int e_index[3], void *data);
-typedef void (*Nearest2DCopyVertNoCallback)(const int index, float r_no[3], void *data);
+typedef void (*Nearest2DGetTriEdgesCallback)(const int index, const int e_index[3], void *data);
+typedef void (*Nearest2DCopyVertNoCallback)(const int index, const float r_no[3], void *data);
 
 typedef struct Nearest2dUserData {
   void *userdata;
diff --git a/source/blender/editors/uvedit/uvedit_parametrizer.c b/source/blender/editors/uvedit/uvedit_parametrizer.c
index a4ee9a294fe..8e079dcac94 100644
--- a/source/blender/editors/uvedit/uvedit_parametrizer.c
+++ b/source/blender/editors/uvedit/uvedit_parametrizer.c
@@ -497,7 +497,7 @@ static void p_chart_uv_translate(PChart *chart, const float trans[2])
   }
 }
 
-static void p_chart_uv_transform(PChart *chart, float mat[2][2])
+static void p_chart_uv_transform(PChart *chart, const float mat[2][2])
 {
   PVert *v;
 
diff --git a/source/blender/editors/uvedit/uvedit_smart_stitch.c b/source/blender/editors/uvedit/uvedit_smart_stitch.c
index f649ee528d4..f3ea7456c38 100644
--- a/source/blender/editors/uvedit/uvedit_smart_stitch.c
+++ b/source/blender/editors/uvedit/uvedit_smart_stitch.c
@@ -323,7 +323,10 @@ static int getNumOfIslandUvs(UvElementMap *elementMap, int island)
   return elementMap->islandIndices[island + 1] - elementMap->islandIndices[island];
 }
 
-static void stitch_uv_rotate(float mat[2][2], float medianPoint[2], float uv[2], float aspect)
+static void stitch_uv_rotate(const float mat[2][2],
+                             const float medianPoint[2],
+                             float uv[2],
+                             float aspect)
 {
   float uv_rotation_result[2];