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authorDave Airlie <airlied@redhat.com>2010-08-02 14:46:17 +1000
committerDave Airlie <airlied@redhat.com>2010-08-02 16:27:15 +1000
commit3f4ec394b027c6d947ccc88309a7d37bc3859e9d (patch)
tree4d2626693821031e8a344e4a6b16118013fd7dfa /src/gallium
parent7bcd39ce50b7b710bb8561c430f345ebe91ab9a3 (diff)
r600g: initial alpha test state
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/r600/r600_state.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 56304cc69f..9af39f7218 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -873,19 +873,27 @@ static struct radeon_state *r600_dsa(struct r600_context *rctx)
const struct pipe_depth_stencil_alpha_state *state = &rctx->dsa->state.dsa;
struct r600_screen *rscreen = rctx->screen;
struct radeon_state *rstate;
- unsigned db_depth_control;
-
+ unsigned db_depth_control, alpha_test_control, alpha_ref;
+
rstate = radeon_state(rscreen->rw, R600_DSA_TYPE, R600_DSA);
if (rstate == NULL)
return NULL;
+
db_depth_control = 0x00700700 | S_028800_Z_ENABLE(state->depth.enabled) | S_028800_Z_WRITE_ENABLE(state->depth.writemask) | S_028800_ZFUNC(state->depth.func);
-
+ alpha_test_control = 0;
+ alpha_ref = 0;
+ if (state->alpha.enabled) {
+ alpha_test_control = (state->alpha.func) << 0;
+ alpha_test_control |= SX_ALPHA_TEST_ENABLE;
+ alpha_ref = fui(state->alpha.ref_value);
+ }
+
rstate->states[R600_DSA__DB_STENCIL_CLEAR] = 0x00000000;
rstate->states[R600_DSA__DB_DEPTH_CLEAR] = 0x3F800000;
- rstate->states[R600_DSA__SX_ALPHA_TEST_CONTROL] = 0x00000000;
+ rstate->states[R600_DSA__SX_ALPHA_TEST_CONTROL] = alpha_test_control;
rstate->states[R600_DSA__DB_STENCILREFMASK] = 0xFFFFFF00;
rstate->states[R600_DSA__DB_STENCILREFMASK_BF] = 0xFFFFFF00;
- rstate->states[R600_DSA__SX_ALPHA_REF] = 0x00000000;
+ rstate->states[R600_DSA__SX_ALPHA_REF] = alpha_ref;
rstate->states[R600_DSA__SPI_FOG_FUNC_SCALE] = 0x00000000;
rstate->states[R600_DSA__SPI_FOG_FUNC_BIAS] = 0x00000000;
rstate->states[R600_DSA__SPI_FOG_CNTL] = 0x00000000;