--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmscaledblit.h	Fri Sep 28 01:54:23 2012 +0300
@@ -0,0 +1,80 @@
+/*
+ * DMLib
+ * -- Sprite / surface blitting function template
+ * Programmed and designed by Matti 'ccr' Hamalainen
+ * (C) Copyright 2011-2012 Tecnic Software productions (TNSP)
+ */
+
+int DM_SCALED_NAME (SDL_Surface *src,
+    const int x0, const int y0,
+    const int dwidth, const int dheight,
+    SDL_Surface *dst)
+{
+    int yc;
+    DMFixedPoint32 xv, yv, dx, dy;
+    DMQValue xr, yr;
+
+#ifdef DM_SCALED_VARS
+    DM_SCALED_VARS
+#endif
+    
+    // Clip coordinates
+    if (dmClipCoord(&xr, x0, src->w, dwidth, 
+        dst->clip_rect.x, dst->clip_rect.x + dst->clip_rect.w)
+        ||
+        dmClipCoord(&yr, y0, src->h, dheight,
+        dst->clip_rect.y, dst->clip_rect.y + dst->clip_rect.h))
+        return -1;
+
+#ifdef DM_SCALED_INIT
+    DM_SCALED_INIT
+#endif
+
+    // Calculate "final" initial source bitmap offsets
+    FP_CONV(dy, yr.voffs);
+    FP_MUL_R(yv, dy, yr.vdelta);
+
+    FP_CONV(dx, xr.voffs);
+    FP_MUL_R(dx, dx, xr.vdelta);
+
+    // Take pitch into account
+    const int xadd = xr.vadd - dst->clip_rect.w + dst->clip_rect.x + (dst->pitch / DM_SCALED_DST_BYTES);
+
+    // Blit scaled
+    DM_SCALED_DST_TYPE * dp = ((DM_SCALED_DST_TYPE *) dst->pixels) + (yr.v0 * dst->pitch) / DM_SCALED_DST_BYTES + xr.v0;
+    for (yc = yr.v0; yc < yr.v1; yc++)
+    {
+        const DM_SCALED_SRC_TYPE * sp = ((DM_SCALED_SRC_TYPE *) src->pixels) + (FP_GETH(yv) * src->pitch) / DM_SCALED_SRC_BYTES;
+        int xc;
+
+#ifdef DM_SCALED_INNER_INIT
+    DM_SCALED_INNER_INIT
+#endif
+
+        for (xv.dw = dx.dw, xc = xr.v0; xc < xr.v1; xc++)
+        {
+            DM_SCALED_INNER
+            FP_ADD(xv, xr.vdelta);
+        }
+        FP_ADD(yv, yr.vdelta);
+        dp += xadd;
+    }
+
+#ifdef DM_SCALED_FINISH
+    DM_SCALED_FINISH
+#endif
+
+    return 0;
+}
+
+
+#undef DM_SCALED_NAME
+#undef DM_SCALED_SRC_BYTES
+#undef DM_SCALED_DST_BYTES
+#undef DM_SCALED_SRC_TYPE
+#undef DM_SCALED_DST_TYPE
+#undef DM_SCALED_VARS
+#undef DM_SCALED_INIT
+#undef DM_SCALED_INNER_INIT
+#undef DM_SCALED_INNER
+#undef DM_SCALED_FINISH