diff options
| author | Marek Olšák <[email protected]> | 2010-07-20 16:37:22 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2010-07-21 22:54:34 +0200 |
| commit | ca7ead03da4481cd34933175898f4a924e588ad4 (patch) | |
| tree | 32d5104ff971aca40b2b22d7eefc36d515b4fb24 /src/gallium | |
| parent | 5725738ef6a4b5110064d4e2e0ce4f7609e875e4 (diff) | |
r300g: implement depth clamp
Depth clamping seems to be implicit if clipping is disabled.
It's not perfect, but it's good enough for wine and passes
the corresponding piglit tests.
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/r300/r300_screen.c | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index 9c73ffc09b2..5a11b98eb6c 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -115,6 +115,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_MIRROR_REPEAT: case PIPE_CAP_BLEND_EQUATION_SEPARATE: case PIPE_CAP_TEXTURE_SWIZZLE: + case PIPE_CAP_DEPTH_CLAMP: return 1; /* Unsupported features (boolean caps). */ diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 0bbc022f837..f52265b1c03 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -440,7 +440,8 @@ static void r300_set_clip_state(struct pipe_context* pipe, OUT_CB_TABLE(state->ucp, state->nr * 4); } OUT_CB_REG(R300_VAP_CLIP_CNTL, ((1 << state->nr) - 1) | - R300_PS_UCP_MODE_CLIP_AS_TRIFAN); + R300_PS_UCP_MODE_CLIP_AS_TRIFAN | + (state->depth_clamp ? R300_CLIP_DISABLE : 0)); END_CB; r300->clip_state.dirty = TRUE; |