Green tint textures with Voodoo 3

[Vort]

When 3DMark 99 Max in demo mode starts rendering sun with Voodoo 3 card, green rectangles appear:

To see this effect better, I enlarged this screenshot and enhanced its contrast:

There are several videos which show how it should be rendered with real hardware.
This one have decent quality so I took screenshot of the same scene from it. No rectangles appear:

Version: 42ae1e8

[Vort]

Here's a fix for this problem, based on mamedev/mame@d6d5d89:

diff --git a/bochs/iodev/display/voodoo_data.h b/bochs/iodev/display/voodoo_data.h
index f9046eec4..05160cba8 100644
--- a/bochs/iodev/display/voodoo_data.h
+++ b/bochs/iodev/display/voodoo_data.h
@@ -2531,9 +2531,8 @@ do
   if (ALPHAMODE_ALPHABLEND(ALPHAMODE))                                           \
   {                                                                              \
     int dpix = dest[XX];                                                         \
-    int dr = (dpix >> 8) & 0xf8;                                                 \
-    int dg = (dpix >> 3) & 0xfc;                                                 \
-    int db = (dpix << 3) & 0xf8;                                                 \
+    int dr, dg, db;                                                              \
+    EXTRACT_565_TO_888(dpix, dr, dg, db);                                        \
     int da = FBZMODE_ENABLE_ALPHA_PLANES(FBZMODE) ? depth[XX] : 0xff;            \
     int sr = (RR);                                                               \
     int sg = (GG);                                                               \