diff options
| author | Pekka Paalanen <pq@iki.fi> | 2009-01-31 14:39:08 +0200 |
|---|---|---|
| committer | Pekka Paalanen <pq@iki.fi> | 2009-01-31 23:41:23 +0200 |
| commit | 9116f9408ed373109cbf7d25998692846f2e2ef3 (patch) | |
| tree | 734721e2892b088f660b7d97184fa805bfb8e646 /src | |
| parent | b5e2ab63e8e3c4670c51453470fc9183343a22bf (diff) | |
nv20: Z-mapping parameters
Based on my renouveau dump, adjust initial hw state related to Z-mapping,
and add one unknown depth reg into depth/stencil/alpha emission.
Now trivial/tri-z on nv20 looks identical to swrast rendered one.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/nv20/nv20_context.c | 22 | ||||
| -rw-r--r-- | src/gallium/drivers/nv20/nv20_state_emit.c | 3 |
2 files changed, 14 insertions, 11 deletions
diff --git a/src/gallium/drivers/nv20/nv20_context.c b/src/gallium/drivers/nv20/nv20_context.c index c8fb690ee9..877ef5dcef 100644 --- a/src/gallium/drivers/nv20/nv20_context.c +++ b/src/gallium/drivers/nv20/nv20_context.c @@ -349,7 +349,7 @@ static void nv20_init_hwctx(struct nv20_context *nv20) memset(projectionmatrix, 0, sizeof(projectionmatrix)); projectionmatrix[0*4+0] = 1.0; projectionmatrix[1*4+1] = 1.0; - projectionmatrix[2*4+2] = 1.0; + projectionmatrix[2*4+2] = 16777215.0; projectionmatrix[3*4+3] = 1.0; BEGIN_RING(kelvin, NV20TCL_PROJECTION_MATRIX(0), 16); for (i = 0; i < 16; i++) { @@ -357,20 +357,20 @@ static void nv20_init_hwctx(struct nv20_context *nv20) } BEGIN_RING(kelvin, NV20TCL_DEPTH_RANGE_NEAR, 2); - OUT_RINGf (0.0); - OUT_RINGf (16777216.0); /* bpp dependant? */ + OUT_RINGf (0.0); + OUT_RINGf (16777216.0); /* [0, 1] scaled approx to [0, 2^24] */ BEGIN_RING(kelvin, NV20TCL_VIEWPORT_SCALE0_X, 4); - OUT_RINGf (0.0); /* x-offset */ - OUT_RINGf (0.0); /* y-offset */ - OUT_RINGf (16777215.0 * 0.5); - OUT_RING (0); + OUT_RINGf (0.0); /* x-offset, w/2 + 1.031250 */ + OUT_RINGf (0.0); /* y-offset, h/2 + 0.030762 */ + OUT_RINGf (0.0); + OUT_RINGf (16777215.0); BEGIN_RING(kelvin, NV20TCL_VIEWPORT_SCALE1_X, 4); - OUT_RINGf (0.0); /* no effect? */ - OUT_RINGf (0.0); /* no effect? */ - OUT_RINGf (16777215.0 * 0.5); - OUT_RINGf (65535.0); + OUT_RINGf (0.0); /* no effect?, w/2 */ + OUT_RINGf (0.0); /* no effect?, h/2 */ + OUT_RINGf (16777215.0 * 0.5); + OUT_RINGf (65535.0); FIRE_RING (NULL); } diff --git a/src/gallium/drivers/nv20/nv20_state_emit.c b/src/gallium/drivers/nv20/nv20_state_emit.c index cbdc674b09..5d5f4cdc08 100644 --- a/src/gallium/drivers/nv20/nv20_state_emit.c +++ b/src/gallium/drivers/nv20/nv20_state_emit.c @@ -73,6 +73,9 @@ static void nv20_state_emit_dsa(struct nv20_context* nv20) BEGIN_RING(kelvin, NV20TCL_DEPTH_TEST_ENABLE, 1); OUT_RING (d->depth.test_enable); + BEGIN_RING(kelvin, NV20TCL_DEPTH_UNK17D8, 1); + OUT_RING (1); + #if 0 BEGIN_RING(kelvin, NV20TCL_STENCIL_ENABLE, 1); OUT_RING (d->stencil.enable); |