Fix rendering of non zero src rect

Author: Beyley

src/render/psl1ght/SDL_PSL1GHTrender.c

@@ -558,12 +558,12 @@ PSL1GHT_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
     scale.outY = final_rect.y;
     scale.outW = final_rect.w;
     scale.outH = final_rect.h;
-    scale.ratioX = (srcrect->w << 20) / final_rect.w;
-    scale.ratioY = (srcrect->h << 20) / final_rect.h;
-    scale.inX = srcrect->x;
-    scale.inY = srcrect->y;
-    scale.inW = srcrect->w;
-    scale.inH = srcrect->h;
+    scale.ratioX = rsxGetFixedSint32(1);
+    scale.ratioY = rsxGetFixedSint32(1);
+    scale.inX = rsxGetFixedUint16(srcrect->x);
+    scale.inY = rsxGetFixedUint16(srcrect->y);
+    scale.inW = srcrect->x + srcrect->w;
+    scale.inH = srcrect->y + srcrect->h;
     scale.offset = src_offset;
     scale.pitch = src->pitch;
     scale.origin = GCM_TRANSFER_ORIGIN_CORNER;