diff options
| author | Ilia Mirkin <[email protected]> | 2015-08-24 23:31:00 -0400 |
|---|---|---|
| committer | Emil Velikov <[email protected]> | 2015-08-31 13:16:23 +0100 |
| commit | 94205d0aa229d0cbfb9a5f9ed0cbd1cb07ba9d33 (patch) | |
| tree | cd2544bef944f738a037cac87cafef02dcdaf5f5 /src/gallium/drivers/freedreno/a3xx | |
| parent | 1b40221850d41b622e66f7bbea0eed6594b85c4a (diff) | |
freedreno/a3xx: add basic clip plane support
The hardware is capable of dealing with GL1-style user clip planes.
No clip vertex, no clip distances. Fixes a number of ucp tests, as well
as neverball.
Signed-off-by: Ilia Mirkin <[email protected]>
Cc: "11.0" <[email protected]>
(cherry picked from commit 58e24b4761ec8c348bf6825c2355a6e047599306)
Diffstat (limited to 'src/gallium/drivers/freedreno/a3xx')
| -rw-r--r-- | src/gallium/drivers/freedreno/a3xx/fd3_emit.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/a3xx/fd3_emit.c b/src/gallium/drivers/freedreno/a3xx/fd3_emit.c index 752e7f88cb9..6f514ed05df 100644 --- a/src/gallium/drivers/freedreno/a3xx/fd3_emit.c +++ b/src/gallium/drivers/freedreno/a3xx/fd3_emit.c @@ -563,10 +563,29 @@ fd3_emit_state(struct fd_context *ctx, struct fd_ringbuffer *ring, val |= COND(fp->writes_pos, A3XX_GRAS_CL_CLIP_CNTL_ZCLIP_DISABLE); val |= COND(fp->frag_coord, A3XX_GRAS_CL_CLIP_CNTL_ZCOORD | A3XX_GRAS_CL_CLIP_CNTL_WCOORD); + /* TODO only use if prog doesn't use clipvertex/clipdist */ + val |= MIN2(util_bitcount(ctx->rasterizer->clip_plane_enable), 6) << 26; OUT_PKT0(ring, REG_A3XX_GRAS_CL_CLIP_CNTL, 1); OUT_RING(ring, val); } + if (dirty & (FD_DIRTY_RASTERIZER | FD_DIRTY_UCP)) { + uint32_t planes = ctx->rasterizer->clip_plane_enable; + int count = 0; + + while (planes && count < 6) { + int i = ffs(planes) - 1; + + planes &= ~(1U << i); + fd_wfi(ctx, ring); + OUT_PKT0(ring, REG_A3XX_GRAS_CL_USER_PLANE(count++), 4); + OUT_RING(ring, fui(ctx->ucp.ucp[i][0])); + OUT_RING(ring, fui(ctx->ucp.ucp[i][1])); + OUT_RING(ring, fui(ctx->ucp.ucp[i][2])); + OUT_RING(ring, fui(ctx->ucp.ucp[i][3])); + } + } + /* NOTE: since primitive_restart is not actually part of any * state object, we need to make sure that we always emit * PRIM_VTX_CNTL.. either that or be more clever and detect |