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-rw-r--r--src/gallium/drivers/r300/r300_debug.c2
-rw-r--r--src/gallium/drivers/r300/r300_screen.c5
-rw-r--r--src/gallium/drivers/r300/r300_screen.h2
3 files changed, 9 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_debug.c b/src/gallium/drivers/r300/r300_debug.c
index c6b4804cd8..b60cfd1f24 100644
--- a/src/gallium/drivers/r300/r300_debug.c
+++ b/src/gallium/drivers/r300/r300_debug.c
@@ -50,6 +50,8 @@ static const struct debug_named_value debug_options[] = {
{ "noimmd", DBG_NO_IMMD, "Disable immediate mode" },
{ "noopt", DBG_NO_OPT, "Disable shader optimizations" },
{ "nocbzb", DBG_NO_CBZB, "Disable fast color clear" },
+ { "nozmask", DBG_NO_ZMASK, "Disable zbuffer compression" },
+ { "nohiz", DBG_NO_HIZ, "Disable hierarchical zbuffer" },
/* must be last */
DEBUG_NAMED_VALUE_END
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index f54ba4286d..0b0220654a 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -454,6 +454,11 @@ struct pipe_screen* r300_screen_create(struct r300_winsys_screen *rws)
r300_init_debug(r300screen);
r300_parse_chipset(&r300screen->caps);
+ if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
+ r300screen->caps.zmask_ram = 0;
+ if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
+ r300screen->caps.hiz_ram = 0;
+
r300screen->caps.index_bias_supported =
r300screen->caps.is_r500 &&
rws->get_value(rws, R300_VID_DRM_2_3_0);
diff --git a/src/gallium/drivers/r300/r300_screen.h b/src/gallium/drivers/r300/r300_screen.h
index 973b7926fd..c935f55ccb 100644
--- a/src/gallium/drivers/r300/r300_screen.h
+++ b/src/gallium/drivers/r300/r300_screen.h
@@ -102,6 +102,8 @@ r300_winsys_screen(struct pipe_screen *screen) {
#define DBG_FAKE_OCC (1 << 19)
#define DBG_NO_OPT (1 << 20)
#define DBG_NO_CBZB (1 << 21)
+#define DBG_NO_ZMASK (1 << 22)
+#define DBG_NO_HIZ (1 << 23)
/* Statistics. */
#define DBG_P_STAT (1 << 25)
/*@}*/