r600g: implement set_active_query_state for pausing occlusion queries

Use ZPASS_INCREMENT_DISABLE everywhere.

Reviewed-by: Edward O'Callaghan <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>

6 files changed, 24 insertions, 3 deletions

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 077664d068e..c1b0b56ece4 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -1802,12 +1802,15 @@ static void evergreen_emit_db_misc_state(struct r600_context *rctx, struct r600_
 		S_02800C_FORCE_HIS_ENABLE0(V_02800C_FORCE_DISABLE) |
 		S_02800C_FORCE_HIS_ENABLE1(V_02800C_FORCE_DISABLE);
 
-	if (rctx->b.num_occlusion_queries > 0) {
+	if (rctx->b.num_occlusion_queries > 0 &&
+	    !a->occlusion_queries_disabled) {
 		db_count_control |= S_028004_PERFECT_ZPASS_COUNTS(1);
 		if (rctx->b.chip_class == CAYMAN) {
 			db_count_control |= S_028004_SAMPLE_RATE(a->log_samples);
 		}
 		db_render_override |= S_02800C_NOOP_CULL_DISABLE(1);
+	} else {
+		db_count_control |= S_028004_ZPASS_INCREMENT_DISABLE(1);
 	}
 
 	/* This is to fix a lockup when hyperz and alpha test are enabled at
diff --git a/src/gallium/drivers/r600/evergreend.h b/src/gallium/drivers/r600/evergreend.h
index ebe8c4a65ba..a900458f588 100644
--- a/src/gallium/drivers/r600/evergreend.h
+++ b/src/gallium/drivers/r600/evergreend.h
@@ -1735,7 +1735,7 @@
 #define   S_028000_COPY_SAMPLE(x)                      (((x) & 0x7) << 8)
 #define   S_028000_COLOR_DISABLE(x)                    (((x) & 0x1) << 12)
 #define R_028004_DB_COUNT_CONTROL                    0x00028004
-#define   S_028004_ZPASS_INCREMENT_DISABLE        (((x) & 0x1) << 0)
+#define   S_028004_ZPASS_INCREMENT_DISABLE(x)     (((x) & 0x1) << 0)
 #define   S_028004_PERFECT_ZPASS_COUNTS(x)        (((x) & 0x1) << 1)
 #define   S_028004_SAMPLE_RATE(x)                 (((x) & 0x7) << 4) /* cayman only */
 #define R_028008_DB_DEPTH_VIEW                       0x00028008
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index de3fd06aac3..0102638723b 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -120,6 +120,7 @@ struct r600_db_state {
 
 struct r600_db_misc_state {
 	struct r600_atom		atom;
+	bool				occlusion_queries_disabled;
 	bool				flush_depthstencil_through_cb;
 	bool				flush_depth_inplace;
 	bool				flush_stencil_inplace;
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 62b46ce52a1..c4de9639a79 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -1644,12 +1644,16 @@ static void r600_emit_db_misc_state(struct r600_context *rctx, struct r600_atom
 		}
 	}
 
-	if (rctx->b.num_occlusion_queries > 0) {
+	if (rctx->b.num_occlusion_queries > 0 &&
+	    !a->occlusion_queries_disabled) {
 		if (rctx->b.chip_class >= R700) {
 			db_render_control |= S_028D0C_R700_PERFECT_ZPASS_COUNTS(1);
 		}
 		db_render_override |= S_028D10_NOOP_CULL_DISABLE(1);
+	} else {
+		db_render_control |= S_028D0C_ZPASS_INCREMENT_DISABLE(1);
 	}
+
 	if (rctx->db_state.rsurf && rctx->db_state.rsurf->db_htile_surface) {
 		/* FORCE_OFF means HiZ/HiS are determined by DB_SHADER_CONTROL */
 		db_render_override |= S_028D10_FORCE_HIZ_ENABLE(V_028D10_FORCE_OFF);
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 32a10491e8b..cdb493dad28 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -2860,6 +2860,17 @@ static void r600_invalidate_buffer(struct pipe_context *ctx, struct pipe_resourc
 	}
 }
 
+static void r600_set_active_query_state(struct pipe_context *ctx, boolean enable)
+{
+	struct r600_context *rctx = (struct r600_context*)ctx;
+
+	/* Occlusion queries. */
+	if (rctx->db_misc_state.occlusion_queries_disabled != !enable) {
+		rctx->db_misc_state.occlusion_queries_disabled = !enable;
+		r600_mark_atom_dirty(rctx, &rctx->db_misc_state.atom);
+	}
+}
+
 static void r600_set_occlusion_query_state(struct pipe_context *ctx, bool enable)
 {
 	struct r600_context *rctx = (struct r600_context*)ctx;
@@ -2914,6 +2925,7 @@ void r600_init_common_state_functions(struct r600_context *rctx)
 	rctx->b.b.sampler_view_destroy = r600_sampler_view_destroy;
 	rctx->b.b.texture_barrier = r600_texture_barrier;
 	rctx->b.b.set_stream_output_targets = r600_set_streamout_targets;
+	rctx->b.b.set_active_query_state = r600_set_active_query_state;
 	rctx->b.b.draw_vbo = r600_draw_vbo;
 	rctx->b.invalidate_buffer = r600_invalidate_buffer;
 	rctx->b.set_occlusion_query_state = r600_set_occlusion_query_state;
diff --git a/src/gallium/drivers/r600/r600d.h b/src/gallium/drivers/r600/r600d.h
index ef99573ebc6..0c18445f015 100644
--- a/src/gallium/drivers/r600/r600d.h
+++ b/src/gallium/drivers/r600/r600d.h
@@ -781,6 +781,7 @@
 #define   S_028D0C_DEPTH_COMPRESS_DISABLE(x)           (((x) & 0x1) << 6)
 #define   S_028D0C_COPY_CENTROID(x)                    (((x) & 0x1) << 7)
 #define   S_028D0C_COPY_SAMPLE(x)                      (((x) & 0x03) << 8)
+#define   S_028D0C_ZPASS_INCREMENT_DISABLE(x)          (((x) & 0x1) << 11)
 #define   S_028D0C_R700_PERFECT_ZPASS_COUNTS(x)        (((x) & 0x1) << 15)
 #define   S_028D0C_CONSERVATIVE_Z_EXPORT(x)            (((x) & 0x03) << 13)
 #define   G_028D0C_CONSERVATIVE_Z_EXPORT(x)            (((x) >> 13) & 0x03)