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authorMarek Olšák <[email protected]>2011-02-28 22:10:04 +0100
committerMarek Olšák <[email protected]>2011-03-01 00:46:54 +0100
commitebf69f2c508e2cb6df1437ef0e31cbc8b808824d (patch)
treeb9485072b4c7b63df61329f3fe28805d86f34632 /src/gallium/drivers/r300/r300_context.h
parentd99ec708afbb785ce05031661222b38c9447059f (diff)
r300g: disable HiZ permanently if the the depth function is inverted
Instead of temporarily. The HiZ function (something like a depth function) is a property of a HiZ buffer and can only be changed during HiZ clears.
Diffstat (limited to 'src/gallium/drivers/r300/r300_context.h')
-rw-r--r--src/gallium/drivers/r300/r300_context.h18
1 files changed, 17 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h
index e18f876fc2d..33d1390b070 100644
--- a/src/gallium/drivers/r300/r300_context.h
+++ b/src/gallium/drivers/r300/r300_context.h
@@ -102,7 +102,6 @@ struct r300_dsa_state {
};
struct r300_hyperz_state {
- int current_func; /* -1 after a clear before first op */
int flush;
/* This is actually a command buffer with named dwords. */
uint32_t cb_flush_begin;
@@ -414,6 +413,21 @@ struct r300_vertex_element_state {
struct r300_vertex_stream_state vertex_stream;
};
+enum r300_hiz_func {
+ HIZ_FUNC_NONE,
+
+ /* The function, when determined, is set in stone
+ * until the next HiZ clear. */
+
+ /* MAX is written to the HiZ buffer.
+ * Used for LESS, LEQUAL. */
+ HIZ_FUNC_MAX,
+
+ /* MIN is written to the HiZ buffer.
+ * Used for GREATER, GEQUAL. */
+ HIZ_FUNC_MIN,
+};
+
struct r300_context {
/* Parent class */
struct pipe_context context;
@@ -559,6 +573,8 @@ struct r300_context {
struct pipe_surface *locked_zbuffer;
/* Whether HIZ is enabled. */
boolean hiz_in_use;
+ /* HiZ function. Can be either MIN or MAX. */
+ enum r300_hiz_func hiz_func;
void *dsa_decompress_zmask;