diff options
| author | Marek Olšák <maraeo@gmail.com> | 2010-07-20 16:37:22 +0200 |
|---|---|---|
| committer | Marek Olšák <maraeo@gmail.com> | 2010-07-21 22:54:34 +0200 |
| commit | ca7ead03da4481cd34933175898f4a924e588ad4 (patch) | |
| tree | 32d5104ff971aca40b2b22d7eefc36d515b4fb24 | |
| 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.
| -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 9c73ffc09b..5a11b98eb6 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 0bbc022f83..f52265b1c0 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; |