From 18105195a86b8294b578462febf47692832e8705 Mon Sep 17 00:00:00 2001 From: Brian Date: Mon, 4 Feb 2008 09:54:21 -0700 Subject: [PATCH] Cell: checkpoint: start to SIMD-ize texture sampling --- src/mesa/pipe/cell/spu/spu_main.c | 10 ++++++++++ src/mesa/pipe/cell/spu/spu_main.h | 4 ++++ src/mesa/pipe/cell/spu/spu_texture.c | 17 ++++++++++++++--- src/mesa/pipe/cell/spu/spu_texture.h | 2 +- src/mesa/pipe/cell/spu/spu_tri.c | 8 ++++---- 5 files changed, 33 insertions(+), 8 deletions(-) diff --git a/src/mesa/pipe/cell/spu/spu_main.c b/src/mesa/pipe/cell/spu/spu_main.c index ba4d180cc0c..412661061ab 100644 --- a/src/mesa/pipe/cell/spu/spu_main.c +++ b/src/mesa/pipe/cell/spu/spu_main.c @@ -263,6 +263,16 @@ cmd_state_texture(const struct cell_command_texture *texture) spu.init.id, texture->start, texture->width, texture->height); memcpy(&spu.texture, texture, sizeof(*texture)); + spu.tex_size = VEC_LITERAL(vector float, + spu.texture.width, + spu.texture.height, + 0.0, + 0.0); + spu.tex_size_mask = VEC_LITERAL(vector unsigned int, + spu.texture.width - 1, + spu.texture.height - 1, + 0, + 0); } diff --git a/src/mesa/pipe/cell/spu/spu_main.h b/src/mesa/pipe/cell/spu/spu_main.h index 7a12715b0bc..02b62ee5cd5 100644 --- a/src/mesa/pipe/cell/spu/spu_main.h +++ b/src/mesa/pipe/cell/spu/spu_main.h @@ -110,6 +110,10 @@ struct spu_global /** for converting RGBA to PIPE_FORMAT_x colors */ vector unsigned char color_shuffle; + + vector float tex_size; + vector unsigned int tex_size_mask; /**< == int(size - 1) */ + } ALIGN16_ATTRIB; diff --git a/src/mesa/pipe/cell/spu/spu_texture.c b/src/mesa/pipe/cell/spu/spu_texture.c index c1dc6bfe902..1cf958806fc 100644 --- a/src/mesa/pipe/cell/spu/spu_texture.c +++ b/src/mesa/pipe/cell/spu/spu_texture.c @@ -128,12 +128,23 @@ get_tex_tile(uint i, uint j) * XXX this is extremely primitive for now. */ uint -sample_texture(float4 texcoord) +sample_texture(vector float texcoord) { +#if 0 /* wrap/repeat */ - uint i = (uint) (texcoord.f[0] * spu.texture.width) % spu.texture.width; - uint j = (uint) (texcoord.f[1] * spu.texture.height) % spu.texture.height; + uint i = (uint) (spu_extract(texcoord, 0) * spu.texture.width) % spu.texture.width; + uint j = (uint) (spu_extract(texcoord, 1) * spu.texture.height) % spu.texture.height; uint pos = get_tex_tile(i, j); uint texel = tex_tiles[pos].ui[j % TILE_SIZE][i % TILE_SIZE]; return texel; +#else + vector float tc = spu_mul(texcoord, spu.tex_size); + vector unsigned int itc = spu_convtu(tc, 0); + itc = spu_and(itc, spu.tex_size_mask); + uint i = spu_extract(itc, 0); + uint j = spu_extract(itc, 1); + uint pos = get_tex_tile(i, j); + uint texel = tex_tiles[pos].ui[j % TILE_SIZE][i % TILE_SIZE]; + return texel; +#endif } diff --git a/src/mesa/pipe/cell/spu/spu_texture.h b/src/mesa/pipe/cell/spu/spu_texture.h index 938a42b5495..5bc8e71879b 100644 --- a/src/mesa/pipe/cell/spu/spu_texture.h +++ b/src/mesa/pipe/cell/spu/spu_texture.h @@ -37,7 +37,7 @@ invalidate_tex_cache(void); extern uint -sample_texture(float4 texcoord); +sample_texture(vector float texcoord); #endif /* SPU_TEXTURE_H */ diff --git a/src/mesa/pipe/cell/spu/spu_tri.c b/src/mesa/pipe/cell/spu/spu_tri.c index 3f46e75d7ce..c148c75dd61 100644 --- a/src/mesa/pipe/cell/spu/spu_tri.c +++ b/src/mesa/pipe/cell/spu/spu_tri.c @@ -309,13 +309,13 @@ emit_quad( int x, int y, mask_t mask ) eval_coeff(2, (float) x, (float) y, texcoords); if (spu_extract(mask, 0)) - spu.ctile.ui[iy][ix] = sample_texture(texcoords[0]); + spu.ctile.ui[iy][ix] = sample_texture(texcoords[0].v); if (spu_extract(mask, 1)) - spu.ctile.ui[iy][ix+1] = sample_texture(texcoords[1]); + spu.ctile.ui[iy][ix+1] = sample_texture(texcoords[1].v); if (spu_extract(mask, 2)) - spu.ctile.ui[iy+1][ix] = sample_texture(texcoords[2]); + spu.ctile.ui[iy+1][ix] = sample_texture(texcoords[2].v); if (spu_extract(mask, 3)) - spu.ctile.ui[iy+1][ix+1] = sample_texture(texcoords[3]); + spu.ctile.ui[iy+1][ix+1] = sample_texture(texcoords[3].v); } else { /* simple shading */ -- 2.30.2