Fixed crash scaling very large surfaces

Fixes https://github.com/libsdl-org/SDL/issues/8878

src/video/SDL_blit_auto.c

@@ -30,12 +30,12 @@
 
 static void SDL_Blit_XRGB8888_XRGB8888_Scale(SDL_BlitInfo *info)
 {
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -113,12 +113,12 @@ static void SDL_Blit_XRGB8888_XRGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -206,12 +206,12 @@ static void SDL_Blit_XRGB8888_XRGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -320,12 +320,12 @@ static void SDL_Blit_XRGB8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -391,12 +391,12 @@ static void SDL_Blit_XRGB8888_XBGR8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -477,12 +477,12 @@ static void SDL_Blit_XRGB8888_XBGR8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -570,12 +570,12 @@ static void SDL_Blit_XRGB8888_XBGR8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -684,12 +684,12 @@ static void SDL_Blit_XRGB8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -755,12 +755,12 @@ static void SDL_Blit_XRGB8888_ARGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     const Uint32 A = 0xFF;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -841,12 +841,12 @@ static void SDL_Blit_XRGB8888_ARGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -939,12 +939,12 @@ static void SDL_Blit_XRGB8888_ARGB8888_Modulate_Scale(SDL_BlitInfo *info)
     Uint32 pixel;
     const Uint32 A = (flags & SDL_COPY_MODULATE_ALPHA) ? modulateA : 0xFF;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1054,12 +1054,12 @@ static void SDL_Blit_XRGB8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1126,12 +1126,12 @@ static void SDL_Blit_XBGR8888_XRGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1212,12 +1212,12 @@ static void SDL_Blit_XBGR8888_XRGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1305,12 +1305,12 @@ static void SDL_Blit_XBGR8888_XRGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1419,12 +1419,12 @@ static void SDL_Blit_XBGR8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1488,12 +1488,12 @@ static void SDL_Blit_XBGR8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 
 static void SDL_Blit_XBGR8888_XBGR8888_Scale(SDL_BlitInfo *info)
 {
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1571,12 +1571,12 @@ static void SDL_Blit_XBGR8888_XBGR8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1664,12 +1664,12 @@ static void SDL_Blit_XBGR8888_XBGR8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1778,12 +1778,12 @@ static void SDL_Blit_XBGR8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1850,12 +1850,12 @@ static void SDL_Blit_XBGR8888_ARGB8888_Scale(SDL_BlitInfo *info)
     Uint32 pixel;
     const Uint32 A = 0xFF;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -1937,12 +1937,12 @@ static void SDL_Blit_XBGR8888_ARGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2035,12 +2035,12 @@ static void SDL_Blit_XBGR8888_ARGB8888_Modulate_Scale(SDL_BlitInfo *info)
     Uint32 pixel;
     const Uint32 A = (flags & SDL_COPY_MODULATE_ALPHA) ? modulateA : 0xFF;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2150,12 +2150,12 @@ static void SDL_Blit_XBGR8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2221,12 +2221,12 @@ static void SDL_Blit_XBGR8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 static void SDL_Blit_ARGB8888_XRGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2314,12 +2314,12 @@ static void SDL_Blit_ARGB8888_XRGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2415,12 +2415,12 @@ static void SDL_Blit_ARGB8888_XRGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2530,12 +2530,12 @@ static void SDL_Blit_ARGB8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2604,12 +2604,12 @@ static void SDL_Blit_ARGB8888_XBGR8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2698,12 +2698,12 @@ static void SDL_Blit_ARGB8888_XBGR8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2799,12 +2799,12 @@ static void SDL_Blit_ARGB8888_XBGR8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2914,12 +2914,12 @@ static void SDL_Blit_ARGB8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -2986,12 +2986,12 @@ static void SDL_Blit_ARGB8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 
 static void SDL_Blit_ARGB8888_ARGB8888_Scale(SDL_BlitInfo *info)
 {
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3078,12 +3078,12 @@ static void SDL_Blit_ARGB8888_ARGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3185,12 +3185,12 @@ static void SDL_Blit_ARGB8888_ARGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateA = info->a;
     Uint32 pixel;
     Uint32 R, G, B, A;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3304,12 +3304,12 @@ static void SDL_Blit_ARGB8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3378,12 +3378,12 @@ static void SDL_Blit_ARGB8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 static void SDL_Blit_RGBA8888_XRGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3471,12 +3471,12 @@ static void SDL_Blit_RGBA8888_XRGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3572,12 +3572,12 @@ static void SDL_Blit_RGBA8888_XRGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3687,12 +3687,12 @@ static void SDL_Blit_RGBA8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3761,12 +3761,12 @@ static void SDL_Blit_RGBA8888_XBGR8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3855,12 +3855,12 @@ static void SDL_Blit_RGBA8888_XBGR8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -3956,12 +3956,12 @@ static void SDL_Blit_RGBA8888_XBGR8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4071,12 +4071,12 @@ static void SDL_Blit_RGBA8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4144,12 +4144,12 @@ static void SDL_Blit_RGBA8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 static void SDL_Blit_RGBA8888_ARGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4238,12 +4238,12 @@ static void SDL_Blit_RGBA8888_ARGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4345,12 +4345,12 @@ static void SDL_Blit_RGBA8888_ARGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateA = info->a;
     Uint32 pixel;
     Uint32 R, G, B, A;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4464,12 +4464,12 @@ static void SDL_Blit_RGBA8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4539,12 +4539,12 @@ static void SDL_Blit_ABGR8888_XRGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4633,12 +4633,12 @@ static void SDL_Blit_ABGR8888_XRGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4734,12 +4734,12 @@ static void SDL_Blit_ABGR8888_XRGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4849,12 +4849,12 @@ static void SDL_Blit_ABGR8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -4922,12 +4922,12 @@ static void SDL_Blit_ABGR8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 static void SDL_Blit_ABGR8888_XBGR8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5015,12 +5015,12 @@ static void SDL_Blit_ABGR8888_XBGR8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5116,12 +5116,12 @@ static void SDL_Blit_ABGR8888_XBGR8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5231,12 +5231,12 @@ static void SDL_Blit_ABGR8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5305,12 +5305,12 @@ static void SDL_Blit_ABGR8888_ARGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B, A;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5400,12 +5400,12 @@ static void SDL_Blit_ABGR8888_ARGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5507,12 +5507,12 @@ static void SDL_Blit_ABGR8888_ARGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateA = info->a;
     Uint32 pixel;
     Uint32 R, G, B, A;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5626,12 +5626,12 @@ static void SDL_Blit_ABGR8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5701,12 +5701,12 @@ static void SDL_Blit_BGRA8888_XRGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5795,12 +5795,12 @@ static void SDL_Blit_BGRA8888_XRGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -5896,12 +5896,12 @@ static void SDL_Blit_BGRA8888_XRGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6011,12 +6011,12 @@ static void SDL_Blit_BGRA8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6084,12 +6084,12 @@ static void SDL_Blit_BGRA8888_XRGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
 static void SDL_Blit_BGRA8888_XBGR8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6177,12 +6177,12 @@ static void SDL_Blit_BGRA8888_XBGR8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6278,12 +6278,12 @@ static void SDL_Blit_BGRA8888_XBGR8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateB = info->b;
     Uint32 pixel;
     Uint32 R, G, B;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6393,12 +6393,12 @@ static void SDL_Blit_BGRA8888_XBGR8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6467,12 +6467,12 @@ static void SDL_Blit_BGRA8888_ARGB8888_Scale(SDL_BlitInfo *info)
 {
     Uint32 pixel;
     Uint32 R, G, B, A;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6562,12 +6562,12 @@ static void SDL_Blit_BGRA8888_ARGB8888_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6669,12 +6669,12 @@ static void SDL_Blit_BGRA8888_ARGB8888_Modulate_Scale(SDL_BlitInfo *info)
     const Uint32 modulateA = info->a;
     Uint32 pixel;
     Uint32 R, G, B, A;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {
@@ -6788,12 +6788,12 @@ static void SDL_Blit_BGRA8888_ARGB8888_Modulate_Blend_Scale(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {

src/video/SDL_blit_slow.c

@@ -53,9 +53,9 @@ void SDL_Blit_Slow(SDL_BlitInfo *info)
     Uint32 srcR, srcG, srcB, srcA;
     Uint32 dstpixel;
     Uint32 dstR, dstG, dstB, dstA;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
     SDL_PixelFormat *src_fmt = info->src_fmt;
     SDL_PixelFormat *dst_fmt = info->dst_fmt;
     int srcbpp = src_fmt->BytesPerPixel;
@@ -68,8 +68,8 @@ void SDL_Blit_Slow(SDL_BlitInfo *info)
     srcfmt_val = detect_format(src_fmt);
     dstfmt_val = detect_format(dst_fmt);
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2; /* start at the middle of pixel */
 
     while (info->dst_h--) {

src/video/SDL_stretch.c

@@ -158,7 +158,8 @@ int SDL_SoftStretch(SDL_Surface *src, const SDL_Rect *srcrect,
 #define BILINEAR___HEIGHT                                              \
     int index_h, frac_h0, frac_h1, middle;                             \
     const Uint32 *src_h0, *src_h1;                                     \
-    int no_padding, incr_h0, incr_h1;                                  \
+    int no_padding;                                                    \
+    Uint64 incr_h0, incr_h1;                                           \
                                                                        \
     no_padding = !(i < left_pad_h || i > dst_h - 1 - right_pad_h);     \
     index_h = SRC_INDEX(fp_sum_h);                                     \
@@ -167,7 +168,7 @@ int SDL_SoftStretch(SDL_Surface *src, const SDL_Rect *srcrect,
     index_h = no_padding ? index_h : (i < left_pad_h ? 0 : src_h - 1); \
     frac_h0 = no_padding ? frac_h0 : 0;                                \
     incr_h1 = no_padding ? src_pitch : 0;                              \
-    incr_h0 = index_h * src_pitch;                                     \
+    incr_h0 = (Uint64)index_h * src_pitch;                             \
                                                                        \
     src_h0 = (const Uint32 *)((const Uint8 *)src + incr_h0);           \
     src_h1 = (const Uint32 *)((const Uint8 *)src_h0 + incr_h1);        \
@@ -814,16 +815,16 @@ int SDL_LowerSoftStretchLinear(SDL_Surface *s, const SDL_Rect *srcrect,
     return ret;
 }
 
-#define SDL_SCALE_NEAREST__START       \
-    int i;                             \
-    Uint32 posy, incy;                 \
-    Uint32 posx, incx;                 \
-    int dst_gap;                       \
-    int srcy, n;                       \
-    const Uint32 *src_h0;              \
-    incy = (src_h << 16) / dst_h;      \
-    incx = (src_w << 16) / dst_w;      \
-    dst_gap = dst_pitch - bpp * dst_w; \
+#define SDL_SCALE_NEAREST__START          \
+    int i;                                \
+    Uint64 posy, incy;                    \
+    Uint64 posx, incx;                    \
+    Uint64 srcy, srcx;                    \
+    int dst_gap, n;                       \
+    const Uint32 *src_h0;                 \
+    incy = ((Uint64)src_h << 16) / dst_h; \
+    incx = ((Uint64)src_w << 16) / dst_w; \
+    dst_gap = dst_pitch - bpp * dst_w;    \
     posy = incy / 2;
 
 #define SDL_SCALE_NEAREST__HEIGHT                                         \
@@ -842,7 +843,7 @@ static int scale_mat_nearest_1(const Uint32 *src_ptr, int src_w, int src_h, int
         SDL_SCALE_NEAREST__HEIGHT
         while (n--) {
             const Uint8 *src;
-            int srcx = bpp * (posx >> 16);
+            srcx = bpp * (posx >> 16);
             posx += incx;
             src = (const Uint8 *)src_h0 + srcx;
             *(Uint8 *)dst = *src;
@@ -862,7 +863,7 @@ static int scale_mat_nearest_2(const Uint32 *src_ptr, int src_w, int src_h, int
         SDL_SCALE_NEAREST__HEIGHT
         while (n--) {
             const Uint16 *src;
-            int srcx = bpp * (posx >> 16);
+            srcx = bpp * (posx >> 16);
             posx += incx;
             src = (const Uint16 *)((const Uint8 *)src_h0 + srcx);
             *(Uint16 *)dst = *src;
@@ -882,7 +883,7 @@ static int scale_mat_nearest_3(const Uint32 *src_ptr, int src_w, int src_h, int
         SDL_SCALE_NEAREST__HEIGHT
         while (n--) {
             const Uint8 *src;
-            int srcx = bpp * (posx >> 16);
+            srcx = bpp * (posx >> 16);
             posx += incx;
             src = (const Uint8 *)src_h0 + srcx;
             ((Uint8 *)dst)[0] = src[0];
@@ -904,7 +905,7 @@ static int scale_mat_nearest_4(const Uint32 *src_ptr, int src_w, int src_h, int
         SDL_SCALE_NEAREST__HEIGHT
         while (n--) {
             const Uint32 *src;
-            int srcx = bpp * (posx >> 16);
+            srcx = bpp * (posx >> 16);
             posx += incx;
             src = (const Uint32 *)((const Uint8 *)src_h0 + srcx);
             *dst = *src;

src/video/sdlgenblit.pl

@@ -517,15 +517,15 @@ __EOF__
     }
     if ( $scale ) {
         print FILE <<__EOF__;
-    int srcy, srcx;
-    Uint32 posy, posx;
-    int incy, incx;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
 __EOF__
 
     print FILE <<__EOF__;
 
-    incy = (info->src_h << 16) / info->dst_h;
-    incx = (info->src_w << 16) / info->dst_w;
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
     posy = incy / 2;
 
     while (info->dst_h--) {