diff -r f28f7b0f72ae SDL_ttf.c
--- a/SDL_ttf.c	Sat Oct 04 11:55:45 2014 -0400
+++ b/SDL_ttf.c	Fri Oct 10 03:10:31 2014 -0300
@@ -1440,6 +1440,9 @@
             dst = (Uint8*) textbuf->pixels +
                 (row+glyph->yoffset) * textbuf->pitch +
                 xstart + glyph->minx;
+            if ( dst < (Uint8*) textbuf->pixels ) {
+                dst = textbuf->pixels;
+            }
             src = current->buffer + row * current->pitch;
 
             for ( col=width; col>0 && dst < dst_check; --col ) {
@@ -1622,6 +1625,9 @@
             dst = (Uint8*) textbuf->pixels +
                 (row+glyph->yoffset) * textbuf->pitch +
                 xstart + glyph->minx;
+            if ( dst < (Uint8*) textbuf->pixels ) {
+                dst = textbuf->pixels;
+            }
             src = current->buffer + row * current->pitch;
             for ( col=width; col>0 && dst < dst_check; --col ) {
                 *dst++ |= *src++;
@@ -1792,6 +1798,9 @@
             dst = (Uint32*) textbuf->pixels +
                 (row+glyph->yoffset) * textbuf->pitch/4 +
                 xstart + glyph->minx;
+            if ( dst < (Uint32*) textbuf->pixels ) {
+                dst = textbuf->pixels;
+            }
 
             /* Added code to adjust src pointer for pixmaps to
              * account for pitch.
@@ -2060,6 +2069,9 @@
                 dst =  ((Uint32*)textbuf->pixels + rowSize * line) +
                 (row+glyph->yoffset) * textbuf->pitch/4 +
                 xstart + glyph->minx;
+                if ( dst < (Uint32*) textbuf->pixels ) {
+                    dst = textbuf->pixels;
+                }
 
                 /* Added code to adjust src pointer for pixmaps to
                  * account for pitch.