cleanup: spelling & typos

Comments only, no functional change.

intern/ghost/intern/GHOST_ContextCGL.h

@@ -140,7 +140,7 @@ private:
 	const int m_contextFlags;
 	const int m_contextResetNotificationStrategy;
 
-	/** The opgnGL drawing context */
+	/** The OpenGL drawing context */
 	NSOpenGLContext *m_openGLContext;
 
 	//static CGLEWContext *s_cglewContext;

intern/ghost/intern/GHOST_NDOFManagerX11.cpp

@@ -58,7 +58,7 @@ GHOST_NDOFManagerX11::GHOST_NDOFManagerX11(GHOST_System& sys)
 	}
 	else {
 #ifdef DEBUG
-		/* annoying for official builds, just adds noise and most prople don't own these */
+		/* annoying for official builds, just adds noise and most people don't own these */
 		puts("ndof: spacenavd not found");
 		/* This isn't a hard error, just means the user doesn't have a 3D mouse. */
 #endif

intern/ghost/intern/GHOST_SystemWin32.cpp

@@ -1128,7 +1128,7 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
 					 * until it finds a window that processes it.
 					 */
 
-					/* Get the winow under the mouse and send event to it's queue. */
+					/* Get the window under the mouse and send event to its queue. */
 					POINT mouse_pos = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
 					HWND mouse_hwnd = ChildWindowFromPoint(HWND_DESKTOP, mouse_pos);
 					GHOST_WindowWin32 *mouse_window = (GHOST_WindowWin32 *)::GetWindowLongPtr(mouse_hwnd, GWLP_USERDATA);
@@ -1136,7 +1136,7 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
 						event = processWheelEvent(mouse_window, wParam, lParam);
 					}
 					else {
-						/* Happens when wmouse is not over of any of blender windows. */
+						/* Happens when mouse is not over any of blender's windows. */
 						event = processWheelEvent(window, wParam, lParam);
 					}
 

source/blender/editors/include/BIF_glutil.h

@@ -90,13 +90,13 @@ void glutil_draw_lined_arc(float start, float angle, float radius, int nsegments
 void glutil_draw_filled_arc(float start, float angle, float radius, int nsegments);
 
 /**
- * Routines an integer value as obtained by glGetIntegerv.
+ * Returns an integer value as obtained by glGetIntegerv.
  * The param must cause only one value to be gotten from GL.
  */
 int glaGetOneInteger(int param);
 
 /**
- * Routines a float value as obtained by glGetIntegerv.
+ * Returns a float value as obtained by glGetFloatv.
  * The param must cause only one value to be gotten from GL.
  */
 float glaGetOneFloat(int param);
@@ -164,8 +164,8 @@ void glaDrawPixelsTexScaled(float x, float y, int img_w, int img_h, int format,
 
 /** Define a 2D area (viewport, scissor, matrices) for OpenGL rendering.
  *
- * glwDefine2DArea and glaBegin2DDraw set up an OpenGL state appropriate
+ * glaDefine2DArea and glaBegin2DDraw set up an OpenGL state appropriate
- * for drawing using both vertice (Vertex, etc) and raster (RasterPos, Rect)
+ * for drawing using both vertex (Vertex, etc) and raster (RasterPos, Rect)
  * commands. All coordinates should be at integer positions. There is little
  * to no reason to use glVertex2f etc. functions during 2D rendering, and
  * thus no reason to +-0.5 the coordinates or perform other silly

source/blender/editors/interface/interface_draw.c

@@ -65,7 +65,7 @@ static int roundboxtype = UI_CNR_ALL;
 void UI_draw_roundbox_corner_set(int type)
 {
 	/* Not sure the roundbox function is the best place to change this
-	 * if this is undone, its not that big a deal, only makes curves edges
+	 * if this is undone, it's not that big a deal, only makes curves edges
 	 * square for the  */
 	roundboxtype = type;
 	

source/blender/editors/screen/glutil.c

@@ -839,7 +839,7 @@ void gla2DDrawTranslatePt(gla2DDrawInfo *di, float wo_x, float wo_y, int *r_sc_x
 }
 
 /**
- * Translate the \a world point from world coordiantes into screen space.
+ * Translate the \a world point from world coordinates into screen space.
  */
 void gla2DDrawTranslatePtv(gla2DDrawInfo *di, float world[2], int screen_r[2])
 {
@@ -848,7 +848,7 @@ void gla2DDrawTranslatePtv(gla2DDrawInfo *di, float world[2], int screen_r[2])
 }
 
 /**
- * Restores the previous OpenGL state and free's the auxilary gla data.
+ * Restores the previous OpenGL state and frees the auxiliary gla data.
  */
 void glaEnd2DDraw(gla2DDrawInfo *di)
 {

source/blender/editors/transform/transform.c

@@ -6781,7 +6781,7 @@ static eRedrawFlag handleEventVertSlide(struct TransInfo *t, const struct wmEven
 #endif
 				case MOUSEMOVE:
 				{
-					/* don't recalculat the best edge */
+					/* don't recalculate the best edge */
 					const bool is_clamp = !(t->flag & T_ALT_TRANSFORM);
 					if (is_clamp) {
 						calcVertSlideMouseActiveEdges(t, event->mval);