Add SDL_RenderGetWindow() API to get the window associated with a renderer (#5440)

Add SDL_RenderGetWindow() API to get the window associated with a renderer

include/SDL_render.h

@@ -261,6 +261,15 @@ extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateSoftwareRenderer(SDL_Surface *
  */
 extern DECLSPEC SDL_Renderer * SDLCALL SDL_GetRenderer(SDL_Window * window);
 
+/**
+ * Get the window associated with a renderer.
+ *
+ * \param renderer the renderer to query
+ * \returns the window on success or NULL on failure; call
+ *          SDL_GetError() for more information.
+ */
+extern DECLSPEC SDL_Window * SDLCALL SDL_RenderGetWindow(SDL_Renderer *renderer);
+
 /**
  * Get information about a rendering context.
  *

src/dynapi/SDL_dynapi_overrides.h

@@ -864,3 +864,4 @@
 #define SDL_UnionFRect SDL_UnionFRect_REAL
 #define SDL_EncloseFPoints SDL_EncloseFPoints_REAL
 #define SDL_IntersectFRectAndLine SDL_IntersectFRectAndLine_REAL
+#define SDL_RenderGetWindow SDL_RenderGetWindow_REAL

src/dynapi/SDL_dynapi_procs.h

@@ -935,3 +935,4 @@ SDL_DYNAPI_PROC(SDL_bool,SDL_IntersectFRect,(const SDL_FRect *a, const SDL_FRect
 SDL_DYNAPI_PROC(void,SDL_UnionFRect,(const SDL_FRect *a, const SDL_FRect *b, SDL_FRect *c),(a,b,c),)
 SDL_DYNAPI_PROC(SDL_bool,SDL_EncloseFPoints,(const SDL_FPoint *a, int b, const SDL_FRect *c, SDL_FRect *d),(a,b,c,d),return)
 SDL_DYNAPI_PROC(SDL_bool,SDL_IntersectFRectAndLine,(const SDL_FRect *a, float *b, float *c, float *d, float *e),(a,b,c,d,e),return)
+SDL_DYNAPI_PROC(SDL_Window*,SDL_RenderGetWindow,(SDL_Renderer *a),(a),return)

src/render/SDL_render.c

@@ -1095,6 +1095,13 @@ SDL_GetRenderer(SDL_Window * window)
     return (SDL_Renderer *)SDL_GetWindowData(window, SDL_WINDOWRENDERDATA);
 }
 
+SDL_Window *
+SDL_RenderGetWindow(SDL_Renderer *renderer)
+{
+    CHECK_RENDERER_MAGIC(renderer, NULL);
+    return renderer->window;
+}
+
 int
 SDL_GetRendererInfo(SDL_Renderer * renderer, SDL_RendererInfo * info)
 {