diff options
| author | Jonathan Adamczewski <jadamcze@utas.edu.a> | 2009-01-05 07:49:48 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-01-05 07:52:59 -0700 |
| commit | 90167d0ee94384327d4a8482b21fdd28ba2c7171 (patch) | |
| tree | ca440f7109c7f9f9053787191bd5f2789c73d23c | |
| parent | 5256f94b1a64f9bb61ec2b627a71ff9a0fc7a484 (diff) | |
cell: SIMDize some subtractions
Put edge.{dx,dy} into a union with a vector and perform subtractions in
setup_sort_vertices() on vectors.
Reduces spu_tri.o by ~300 bytes.
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_tri.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_tri.c b/src/gallium/drivers/cell/spu/spu_tri.c index 30531d38f8..1ef75b386f 100644 --- a/src/gallium/drivers/cell/spu/spu_tri.c +++ b/src/gallium/drivers/cell/spu/spu_tri.c @@ -77,8 +77,13 @@ struct vertex_header { * Triangle edge info */ struct edge { - float dx; /**< X(v1) - X(v0), used only during setup */ - float dy; /**< Y(v1) - Y(v0), used only during setup */ + union { + struct { + float dx; /**< X(v1) - X(v0), used only during setup */ + float dy; /**< Y(v1) - Y(v0), used only during setup */ + }; + vec_float4 ds; /**< vector accessor for dx and dy */ + }; float dxdy; /**< dx/dy */ float sx, sy; /**< first sample point coord */ int lines; /**< number of lines on this edge */ @@ -517,12 +522,9 @@ setup_sort_vertices(const struct vertex_header *v0, spu_extract(setup.vmax->data[0], 0) > setup.cliprect_maxx) return FALSE; - setup.ebot.dx = spu_extract(setup.vmid->data[0], 0) - spu_extract(setup.vmin->data[0], 0); - setup.ebot.dy = spu_extract(setup.vmid->data[0], 1) - spu_extract(setup.vmin->data[0], 1); - setup.emaj.dx = spu_extract(setup.vmax->data[0], 0) - spu_extract(setup.vmin->data[0], 0); - setup.emaj.dy = spu_extract(setup.vmax->data[0], 1) - spu_extract(setup.vmin->data[0], 1); - setup.etop.dx = spu_extract(setup.vmax->data[0], 0) - spu_extract(setup.vmid->data[0], 0); - setup.etop.dy = spu_extract(setup.vmax->data[0], 1) - spu_extract(setup.vmid->data[0], 1); + setup.ebot.ds = spu_sub(setup.vmid->data[0], setup.vmin->data[0]); + setup.emaj.ds = spu_sub(setup.vmax->data[0], setup.vmin->data[0]); + setup.etop.ds = spu_sub(setup.vmax->data[0], setup.vmid->data[0]); /* * Compute triangle's area. Use 1/area to compute partial |