Removed SDL_SoftStretch() from the public API

SDL_BlitSurfaceScaled() is more flexible and uses the SDL_SoftStretch() fast path when possible. Having two surface scaling APIs was confusing, especially when one of them has unexpected limitations.

src/dynapi/SDL_dynapi.sym

@@ -806,7 +806,6 @@ SDL3_0.0.0 {
     SDL_ShowWindow;
     SDL_ShowWindowSystemMenu;
     SDL_SignalCondition;
-    SDL_SoftStretch;
     SDL_StartTextInput;
     SDL_StepUTF8;
     SDL_StopHapticEffect;

src/dynapi/SDL_dynapi_overrides.h

@@ -831,7 +831,6 @@
 #define SDL_ShowWindow SDL_ShowWindow_REAL
 #define SDL_ShowWindowSystemMenu SDL_ShowWindowSystemMenu_REAL
 #define SDL_SignalCondition SDL_SignalCondition_REAL
-#define SDL_SoftStretch SDL_SoftStretch_REAL
 #define SDL_StartTextInput SDL_StartTextInput_REAL
 #define SDL_StepUTF8 SDL_StepUTF8_REAL
 #define SDL_StopHapticEffect SDL_StopHapticEffect_REAL

src/dynapi/SDL_dynapi_procs.h

@@ -841,7 +841,6 @@ SDL_DYNAPI_PROC(int,SDL_ShowSimpleMessageBox,(SDL_MessageBoxFlags a, const char
 SDL_DYNAPI_PROC(int,SDL_ShowWindow,(SDL_Window *a),(a),return)
 SDL_DYNAPI_PROC(int,SDL_ShowWindowSystemMenu,(SDL_Window *a, int b, int c),(a,b,c),return)
 SDL_DYNAPI_PROC(int,SDL_SignalCondition,(SDL_Condition *a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_SoftStretch,(SDL_Surface *a, const SDL_Rect *b, SDL_Surface *c, const SDL_Rect *d, SDL_ScaleMode e),(a,b,c,d,e),return)
 SDL_DYNAPI_PROC(int,SDL_StartTextInput,(SDL_Window *a),(a),return)
 SDL_DYNAPI_PROC(Uint32,SDL_StepUTF8,(const char **a, size_t *b),(a,b),return)
 SDL_DYNAPI_PROC(int,SDL_StopHapticEffect,(SDL_Haptic *a, int b),(a,b),return)

src/render/SDL_yuv_sw.c

@@ -25,6 +25,7 @@
 #if SDL_HAVE_YUV
 
 #include "SDL_yuv_sw_c.h"
+#include "../video/SDL_blit.h"
 #include "../video/SDL_yuv_c.h"
 
 SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(SDL_PixelFormat format, int w, int h)

src/video/SDL_surface_c.h

@@ -76,5 +76,6 @@ extern float SDL_GetDefaultSDRWhitePoint(SDL_Colorspace colorspace);
 extern float SDL_GetSurfaceSDRWhitePoint(SDL_Surface *surface, SDL_Colorspace colorspace);
 extern float SDL_GetDefaultHDRHeadroom(SDL_Colorspace colorspace);
 extern float SDL_GetSurfaceHDRHeadroom(SDL_Surface *surface, SDL_Colorspace colorspace);
+extern int SDL_SoftStretch(SDL_Surface *src, const SDL_Rect *srcrect, SDL_Surface *dst, const SDL_Rect *dstrect, SDL_ScaleMode scaleMode);
 
 #endif /* SDL_surface_c_h_ */

src/video/windows/SDL_windowsshape.c

@@ -25,6 +25,8 @@
 #include "SDL_windowsvideo.h"
 #include "SDL_windowsshape.h"
 
+#include "../SDL_blit.h"
+
 
 static void AddRegion(HRGN *mask, int x1, int y1, int x2, int y2)
 {

src/video/x11/SDL_x11shape.c

@@ -25,6 +25,8 @@
 #include "SDL_x11video.h"
 #include "SDL_x11shape.h"
 
+#include "../SDL_blit.h"
+
 
 #ifdef SDL_VIDEO_DRIVER_X11_XSHAPE
 static Uint8 *GenerateShapeMask(SDL_Surface *shape)