# HG changeset patch
# User TomW
# Date 1408976571 -3600
# Node ID ad7d877a3b53a99faf4d0191f8fbed7bef6ab8e3
# Parent  f6069ee5e9d771323139963a276c985286b4d961
Fixed Z range on ViRGE S3D, fixes Grim Fandango.

diff -r f6069ee5e9d7 -r ad7d877a3b53 src/vid_s3_virge.c
--- a/src/vid_s3_virge.c	Sun Aug 24 14:08:17 2014 +0100
+++ b/src/vid_s3_virge.c	Mon Aug 25 15:22:51 2014 +0100
@@ -2330,7 +2330,7 @@
         {
                 int x  = (state->x1 + ((1 << 20) - 1)) >> 20;
                 int xe = (state->x2 + ((1 << 20) - 1)) >> 20;
-                uint32_t z = state->base_z;
+                uint32_t z = (state->base_z > 0) ? (state->base_z << 1) : 0;
                 if (x_dir < 0)
                 {
                         x--;
@@ -2419,7 +2419,7 @@
                         for (; x != xe; x = (x + x_dir) & 0xfff)
                         {
                                 int update = 1;
-                                int16_t src_z;
+                                uint16_t src_z;
                                 _x = x; _y = state->y;
 
                                 if (use_z)