diff options
Diffstat (limited to 'src/gallium/drivers/cell/spu')
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_render.c | 79 | ||||
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_tri.c | 133 | ||||
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_tri.h | 2 |
3 files changed, 157 insertions, 57 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_render.c b/src/gallium/drivers/cell/spu/spu_render.c index 7c225e2f27..5ffb7073ab 100644 --- a/src/gallium/drivers/cell/spu/spu_render.c +++ b/src/gallium/drivers/cell/spu/spu_render.c @@ -32,6 +32,7 @@ #include "spu_main.h" #include "spu_render.h" +#include "spu_shuffle.h" #include "spu_tri.h" #include "spu_tile.h" #include "cell/common.h" @@ -267,15 +268,75 @@ cmd_render(const struct cell_command_render *render, uint *pos_incr) uint drawn = 0; - /* loop over tris */ - for (j = 0; j < render->num_indexes; j += 3) { - const float *v0, *v1, *v2; - - v0 = (const float *) (vertices + indexes[j+0] * vertex_size); - v1 = (const float *) (vertices + indexes[j+1] * vertex_size); - v2 = (const float *) (vertices + indexes[j+2] * vertex_size); - - drawn += tri_draw(v0, v1, v2, tx, ty); + const qword vertex_sizes = (qword)spu_splats(vertex_size); + const qword verticess = (qword)spu_splats((uint)vertices); + + ASSERT_ALIGN16(&indexes[0]); + + const uint num_indexes = render->num_indexes; + + /* loop over tris + * &indexes[0] will be 16 byte aligned. This loop is heavily unrolled + * avoiding variable rotates when extracting vertex indices. + */ + for (j = 0; j < num_indexes; j += 24) { + /* Load three vectors, containing 24 ushort indices */ + const qword* lower_qword = (qword*)&indexes[j]; + const qword indices0 = lower_qword[0]; + const qword indices1 = lower_qword[1]; + const qword indices2 = lower_qword[2]; + + /* stores three indices for each tri n in slots 0, 1 and 2 of vsn */ + /* Straightforward rotates for these */ + qword vs0 = indices0; + qword vs1 = si_shlqbyi(indices0, 6); + qword vs3 = si_shlqbyi(indices1, 2); + qword vs4 = si_shlqbyi(indices1, 8); + qword vs6 = si_shlqbyi(indices2, 4); + qword vs7 = si_shlqbyi(indices2, 10); + + /* For tri 2 and 5, the three indices are split across two machine + * words - rotate and combine */ + const qword tmp2a = si_shlqbyi(indices0, 12); + const qword tmp2b = si_rotqmbyi(indices1, 12|16); + qword vs2 = si_selb(tmp2a, tmp2b, si_fsmh(si_from_uint(0x20))); + + const qword tmp5a = si_shlqbyi(indices1, 14); + const qword tmp5b = si_rotqmbyi(indices2, 14|16); + qword vs5 = si_selb(tmp5a, tmp5b, si_fsmh(si_from_uint(0x60))); + + /* unpack indices from halfword slots to word slots */ + vs0 = si_shufb(vs0, vs0, SHUFB8(0,A,0,B,0,C,0,0)); + vs1 = si_shufb(vs1, vs1, SHUFB8(0,A,0,B,0,C,0,0)); + vs2 = si_shufb(vs2, vs2, SHUFB8(0,A,0,B,0,C,0,0)); + vs3 = si_shufb(vs3, vs3, SHUFB8(0,A,0,B,0,C,0,0)); + vs4 = si_shufb(vs4, vs4, SHUFB8(0,A,0,B,0,C,0,0)); + vs5 = si_shufb(vs5, vs5, SHUFB8(0,A,0,B,0,C,0,0)); + vs6 = si_shufb(vs6, vs6, SHUFB8(0,A,0,B,0,C,0,0)); + vs7 = si_shufb(vs7, vs7, SHUFB8(0,A,0,B,0,C,0,0)); + + /* Calculate address of vertex in vertices[] */ + vs0 = si_mpya(vs0, vertex_sizes, verticess); + vs1 = si_mpya(vs1, vertex_sizes, verticess); + vs2 = si_mpya(vs2, vertex_sizes, verticess); + vs3 = si_mpya(vs3, vertex_sizes, verticess); + vs4 = si_mpya(vs4, vertex_sizes, verticess); + vs5 = si_mpya(vs5, vertex_sizes, verticess); + vs6 = si_mpya(vs6, vertex_sizes, verticess); + vs7 = si_mpya(vs7, vertex_sizes, verticess); + + /* Select the appropriate call based on the number of vertices + * remaining */ + switch(num_indexes - j) { + default: drawn += tri_draw(vs7, tx, ty); + case 21: drawn += tri_draw(vs6, tx, ty); + case 18: drawn += tri_draw(vs5, tx, ty); + case 15: drawn += tri_draw(vs4, tx, ty); + case 12: drawn += tri_draw(vs3, tx, ty); + case 9: drawn += tri_draw(vs2, tx, ty); + case 6: drawn += tri_draw(vs1, tx, ty); + case 3: drawn += tri_draw(vs0, tx, ty); + } } //printf("SPU %u: drew %u of %u\n", spu.init.id, drawn, render->num_indexes/3); diff --git a/src/gallium/drivers/cell/spu/spu_tri.c b/src/gallium/drivers/cell/spu/spu_tri.c index d727268475..58be001be4 100644 --- a/src/gallium/drivers/cell/spu/spu_tri.c +++ b/src/gallium/drivers/cell/spu/spu_tri.c @@ -133,7 +133,15 @@ struct setup_stage { uint tx, ty; /**< position of current tile (x, y) */ - int cliprect_minx, cliprect_maxx, cliprect_miny, cliprect_maxy; + union { + struct { + int cliprect_minx; + int cliprect_miny; + int cliprect_maxx; + int cliprect_maxy; + }; + qword cliprect; + }; struct interp_coef coef[PIPE_MAX_SHADER_INPUTS]; @@ -432,6 +440,41 @@ print_vertex(const struct vertex_header *v) } #endif +/* Returns the minimum of each slot of two vec_float4s as qwords. + * i.e. return[n] = min(q0[n],q1[n]); + */ +static qword +minfq(qword q0, qword q1) +{ + const qword q0q1m = si_fcgt(q0, q1); + return si_selb(q0, q1, q0q1m); +} + +/* Returns the minimum of each slot of three vec_float4s as qwords. + * i.e. return[n] = min(q0[n],q1[n],q2[n]); + */ +static qword +min3fq(qword q0, qword q1, qword q2) +{ + return minfq(minfq(q0, q1), q2); +} + +/* Returns the maximum of each slot of two vec_float4s as qwords. + * i.e. return[n] = min(q0[n],q1[n],q2[n]); + */ +static qword +maxfq(qword q0, qword q1) { + const qword q0q1m = si_fcgt(q0, q1); + return si_selb(q1, q0, q0q1m); +} + +/* Returns the maximum of each slot of three vec_float4s as qwords. + * i.e. return[n] = min(q0[n],q1[n],q2[n]); + */ +static qword +max3fq(qword q0, qword q1, qword q2) { + return maxfq(maxfq(q0, q1), q2); +} /** * Sort vertices from top to bottom. @@ -440,9 +483,7 @@ print_vertex(const struct vertex_header *v) * \return FALSE if tri is totally outside tile, TRUE otherwise */ static boolean -setup_sort_vertices(const struct vertex_header *v0, - const struct vertex_header *v1, - const struct vertex_header *v2) +setup_sort_vertices(const qword vs) { float area, sign; @@ -455,57 +496,57 @@ setup_sort_vertices(const struct vertex_header *v0, } #endif - /* determine bottom to top order of vertices */ { + /* Load the float values for various processing... */ + const qword f0 = (qword)(((const struct vertex_header*)si_to_ptr(vs))->data[0]); + const qword f1 = (qword)(((const struct vertex_header*)si_to_ptr(si_rotqbyi(vs, 4)))->data[0]); + const qword f2 = (qword)(((const struct vertex_header*)si_to_ptr(si_rotqbyi(vs, 8)))->data[0]); + + /* Check if triangle is completely outside the tile bounds + * Find the min and max x and y positions of the three poits */ + const qword minf = min3fq(f0, f1, f2); + const qword maxf = max3fq(f0, f1, f2); + + /* Compare min and max against cliprect vals */ + const qword maxsmins = si_shufb(maxf, minf, SHUFB4(A,B,a,b)); + const qword outside = si_fcgt(maxsmins, si_csflt(setup.cliprect, 0)); + + /* Use a little magic to work out of the tri is visible or not */ + if(si_to_uint(si_xori(si_gb(outside), 0xc))) return FALSE; + + /* determine bottom to top order of vertices */ /* A table of shuffle patterns for putting vertex_header pointers into correct order. Quite magical. */ - const vec_uchar16 sort_order_patterns[] = { - SHUFFLE4(A,B,C,C), - SHUFFLE4(C,A,B,C), - SHUFFLE4(A,C,B,C), - SHUFFLE4(B,C,A,C), - SHUFFLE4(B,A,C,C), - SHUFFLE4(C,B,A,C) }; - - /* The vertex_header pointers, packed for easy shuffling later */ - const vec_uint4 vs = {(unsigned)v0, (unsigned)v1, (unsigned)v2}; + const qword sort_order_patterns[] = { + SHUFB4(A,B,C,C), + SHUFB4(C,A,B,C), + SHUFB4(A,C,B,C), + SHUFB4(B,C,A,C), + SHUFB4(B,A,C,C), + SHUFB4(C,B,A,C) }; /* Collate y values into two vectors for comparison. Using only one shuffle constant! ;) */ - const vec_float4 y_02_ = spu_shuffle(v0->data[0], v2->data[0], SHUFFLE4(0,B,b,C)); - const vec_float4 y_10_ = spu_shuffle(v1->data[0], v0->data[0], SHUFFLE4(0,B,b,C)); - const vec_float4 y_012 = spu_shuffle(y_02_, v1->data[0], SHUFFLE4(0,B,b,C)); - const vec_float4 y_120 = spu_shuffle(y_10_, v2->data[0], SHUFFLE4(0,B,b,C)); + const qword y_02_ = si_shufb(f0, f2, SHUFB4(0,B,b,C)); + const qword y_10_ = si_shufb(f1, f0, SHUFB4(0,B,b,C)); + const qword y_012 = si_shufb(y_02_, f1, SHUFB4(0,B,b,C)); + const qword y_120 = si_shufb(y_10_, f2, SHUFB4(0,B,b,C)); /* Perform comparison: {y0,y1,y2} > {y1,y2,y0} */ - const vec_uint4 compare = spu_cmpgt(y_012, y_120); + const qword compare = si_fcgt(y_012, y_120); /* Compress the result of the comparison into 4 bits */ - const vec_uint4 gather = spu_gather(compare); + const qword gather = si_gb(compare); /* Subtract one to attain the index into the LUT. Magical. */ - const unsigned int index = spu_extract(gather, 0) - 1; + const unsigned int index = si_to_uint(gather) - 1; /* Load the appropriate pattern and construct the desired vector. */ - setup.vertex_headers = (qword)spu_shuffle(vs, vs, sort_order_patterns[index]); + setup.vertex_headers = si_shufb(vs, vs, sort_order_patterns[index]); /* Using the result of the comparison, set sign. Very magical. */ - sign = ((si_to_uint(si_cntb((qword)gather)) == 2) ? 1.0f : -1.0f); + sign = ((si_to_uint(si_cntb(gather)) == 2) ? 1.0f : -1.0f); } - /* Check if triangle is completely outside the tile bounds */ - if (spu_extract(setup.vmin->data[0], 1) > setup.cliprect_maxy) - return FALSE; - if (spu_extract(setup.vmax->data[0], 1) < setup.cliprect_miny) - return FALSE; - if (spu_extract(setup.vmin->data[0], 0) < setup.cliprect_minx && - spu_extract(setup.vmid->data[0], 0) < setup.cliprect_minx && - spu_extract(setup.vmax->data[0], 0) < setup.cliprect_minx) - return FALSE; - if (spu_extract(setup.vmin->data[0], 0) > setup.cliprect_maxx && - spu_extract(setup.vmid->data[0], 0) > setup.cliprect_maxx && - spu_extract(setup.vmax->data[0], 0) > setup.cliprect_maxx) - return FALSE; - 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]); @@ -761,21 +802,19 @@ subtriangle(struct edge *eleft, struct edge *eright, unsigned lines) * The tile data should have already been fetched. */ boolean -tri_draw(const float *v0, const float *v1, const float *v2, +tri_draw(const qword vs, uint tx, uint ty) { setup.tx = tx; setup.ty = ty; /* set clipping bounds to tile bounds */ - setup.cliprect_minx = tx * TILE_SIZE; - setup.cliprect_miny = ty * TILE_SIZE; - setup.cliprect_maxx = (tx + 1) * TILE_SIZE; - setup.cliprect_maxy = (ty + 1) * TILE_SIZE; - - if (!setup_sort_vertices((struct vertex_header *) v0, - (struct vertex_header *) v1, - (struct vertex_header *) v2)) { + const qword clipbase = (qword)((vec_uint4){tx, ty}); + const qword clipmin = si_mpyui(clipbase, TILE_SIZE); + const qword clipmax = si_ai(clipmin, TILE_SIZE); + setup.cliprect = si_shufb(clipmin, clipmax, SHUFB4(A,B,a,b)); + + if(!setup_sort_vertices(vs)) { return FALSE; /* totally clipped */ } diff --git a/src/gallium/drivers/cell/spu/spu_tri.h b/src/gallium/drivers/cell/spu/spu_tri.h index aa694dd7c9..82e3b19ad7 100644 --- a/src/gallium/drivers/cell/spu/spu_tri.h +++ b/src/gallium/drivers/cell/spu/spu_tri.h @@ -31,7 +31,7 @@ extern boolean -tri_draw(const float *v0, const float *v1, const float *v2, uint tx, uint ty); +tri_draw(const qword vs, uint tx, uint ty); #endif /* SPU_TRI_H */ |