diff options
Diffstat (limited to 'src/gallium/drivers/cell/spu/spu_funcs.c')
-rw-r--r-- | src/gallium/drivers/cell/spu/spu_funcs.c | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_funcs.c b/src/gallium/drivers/cell/spu/spu_funcs.c index 1adf9de0e8..c7bcb3de9d 100644 --- a/src/gallium/drivers/cell/spu/spu_funcs.c +++ b/src/gallium/drivers/cell/spu/spu_funcs.c @@ -38,12 +38,20 @@ #include <math.h> #include <cos14_v.h> #include <sin14_v.h> +#include <transpose_matrix4x4.h> #include "cell/common.h" #include "spu_main.h" #include "spu_funcs.h" +/** For "return"-ing four vectors */ +struct vec_4x4 +{ + vector float v[4]; +}; + + static vector float spu_cos(vector float x) { @@ -92,16 +100,44 @@ spu_log2(vector float x) return spu_mul(v, k); } +static struct vec_4x4 +spu_txp(vector float s, vector float t, vector float r, vector float q) +{ + const uint unit = 0; + struct vec_4x4 colors; + vector float coords[4]; + + coords[0] = s; + coords[1] = t; + coords[2] = r; + coords[3] = q; + _transpose_matrix4x4(coords, coords); + + /* get four texture samples */ + colors.v[0] = spu.sample_texture[unit](unit, coords[0]); + colors.v[1] = spu.sample_texture[unit](unit, coords[1]); + colors.v[2] = spu.sample_texture[unit](unit, coords[2]); + colors.v[3] = spu.sample_texture[unit](unit, coords[3]); + + _transpose_matrix4x4(colors.v, colors.v); + return colors; +} + +/** + * Add named function to list of "exported" functions that will be + * made available to the PPU-hosted code generator. + */ static void -add_func(struct cell_spu_function_info *spu_functions, - const char *name, void *addr) +export_func(struct cell_spu_function_info *spu_functions, + const char *name, void *addr) { uint n = spu_functions->num; ASSERT(strlen(name) < 16); strcpy(spu_functions->names[n], name); spu_functions->addrs[n] = (uint) addr; spu_functions->num++; + ASSERT(spu_functions->num <= 16); } @@ -119,11 +155,12 @@ return_function_info(void) ASSERT(sizeof(funcs) == 256); /* must be multiple of 16 bytes */ funcs.num = 0; - add_func(&funcs, "spu_cos", &spu_cos); - add_func(&funcs, "spu_sin", &spu_sin); - add_func(&funcs, "spu_pow", &spu_pow); - add_func(&funcs, "spu_exp2", &spu_exp2); - add_func(&funcs, "spu_log2", &spu_log2); + export_func(&funcs, "spu_cos", &spu_cos); + export_func(&funcs, "spu_sin", &spu_sin); + export_func(&funcs, "spu_pow", &spu_pow); + export_func(&funcs, "spu_exp2", &spu_exp2); + export_func(&funcs, "spu_log2", &spu_log2); + export_func(&funcs, "spu_txp", &spu_txp); /* Send the function info back to the PPU / main memory */ mfc_put((void *) &funcs, /* src in local store */ |