fixed bug in -s invisibletexttofront

diff --git a/lib/devices/swf.c b/lib/devices/swf.c
index 179c6e2..4f691b6 100644 (file)
--- a/lib/devices/swf.c
+++ b/lib/devices/swf.c
@@ -3079,11 +3079,12 @@ static void swf_drawchar(gfxdevice_t*dev, gfxfont_t*font, int glyph, gfxcolor_t*
            glyph, i->swffont->id, x, y, color->r, color->g, color->b, color->a);
 
     if(color->a == 0 && i->config_invisibletexttofront) {
+       RGBA color2 = *(RGBA*)color;
        if(i->config_flashversion>=8) {
            // use "multiply" blend mode
-           color->a = color->r = color->g = color->b = 255;
+           color2.a = color2.r = color2.g = color2.b = 255;
        }
-       i->topchardata = charbuffer_append(i->topchardata, i->swffont, glyph, x, y, i->current_font_size, *(RGBA*)color, &i->fontmatrix);
+       i->topchardata = charbuffer_append(i->topchardata, i->swffont, glyph, x, y, i->current_font_size, color2, &i->fontmatrix);
     } else {
        i->chardata = charbuffer_append(i->chardata, i->swffont, glyph, x, y, i->current_font_size, *(RGBA*)color, &i->fontmatrix);
     }