diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_texture.c | 62 |
1 files changed, 31 insertions, 31 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_texture.c b/src/gallium/drivers/cell/spu/spu_texture.c index c0af05e46ed..4e12a116cdc 100644 --- a/src/gallium/drivers/cell/spu/spu_texture.c +++ b/src/gallium/drivers/cell/spu/spu_texture.c @@ -314,19 +314,19 @@ sample_texture_2d_bilinear_int(vector float s, vector float t, vector float ss = spu_madd(s, tlevel->scale_s, half); vector float tt = spu_madd(t, tlevel->scale_t, half); - /* convert float coords to fixed-pt coords with 8 fraction bits */ - vector signed int is = spu_convts(ss, 8); - vector signed int it = spu_convts(tt, 8); + /* convert float coords to fixed-pt coords with 7 fraction bits */ + vector signed int is = spu_convts(ss, 7); /* XXX really need floor() here */ + vector signed int it = spu_convts(tt, 7); /* XXX really need floor() here */ - /* compute integer texel weights in [0, 255] */ - vector signed int sWeights0 = spu_and(is, 255); - vector signed int tWeights0 = spu_and(it, 255); - vector signed int sWeights1 = spu_sub(255, sWeights0); - vector signed int tWeights1 = spu_sub(255, tWeights0); + /* compute integer texel weights in [0, 127] */ + vector signed int sWeights0 = spu_and(is, 127); + vector signed int tWeights0 = spu_and(it, 127); + vector signed int sWeights1 = spu_sub(127, sWeights0); + vector signed int tWeights1 = spu_sub(127, tWeights0); - /* texel coords: is0 = is / 256, it0 = is / 256 */ - vector signed int is0 = spu_rlmask(is, -8); - vector signed int it0 = spu_rlmask(it, -8); + /* texel coords: is0 = is / 128, it0 = is / 128 */ + vector signed int is0 = spu_rlmask(is, -7); + vector signed int it0 = spu_rlmask(it, -7); /* texel coords: i1 = is0 + 1, it1 = it0 + 1 */ vector signed int is1 = spu_add(is0, 1); @@ -377,36 +377,36 @@ sample_texture_2d_bilinear_int(vector float s, vector float t, vector unsigned int c0, c1, c2, c3, cSum; /* red */ - c0 = (vector unsigned int) si_mpyu((qword) texel0, si_mpyu((qword) sWeights1, (qword) tWeights1)); /*ul*/ - c1 = (vector unsigned int) si_mpyu((qword) texel4, si_mpyu((qword) sWeights0, (qword) tWeights1)); /*ur*/ - c2 = (vector unsigned int) si_mpyu((qword) texel8, si_mpyu((qword) sWeights1, (qword) tWeights0)); /*ll*/ - c3 = (vector unsigned int) si_mpyu((qword) texel12, si_mpyu((qword) sWeights0, (qword) tWeights0)); /*lr*/ + c0 = (vector unsigned int) si_mpy((qword) texel0, si_mpy((qword) sWeights1, (qword) tWeights1)); /*ul*/ + c1 = (vector unsigned int) si_mpy((qword) texel4, si_mpy((qword) sWeights0, (qword) tWeights1)); /*ur*/ + c2 = (vector unsigned int) si_mpy((qword) texel8, si_mpy((qword) sWeights1, (qword) tWeights0)); /*ll*/ + c3 = (vector unsigned int) si_mpy((qword) texel12, si_mpy((qword) sWeights0, (qword) tWeights0)); /*lr*/ cSum = spu_add(spu_add(c0, c1), spu_add(c2, c3)); - colors[0] = spu_convtf(cSum, 24); + colors[0] = spu_convtf(cSum, 22); /* green */ - c0 = (vector unsigned int) si_mpyu((qword) texel1, si_mpyu((qword) sWeights1, (qword) tWeights1)); /*ul*/ - c1 = (vector unsigned int) si_mpyu((qword) texel5, si_mpyu((qword) sWeights0, (qword) tWeights1)); /*ur*/ - c2 = (vector unsigned int) si_mpyu((qword) texel9, si_mpyu((qword) sWeights1, (qword) tWeights0)); /*ll*/ - c3 = (vector unsigned int) si_mpyu((qword) texel13, si_mpyu((qword) sWeights0, (qword) tWeights0)); /*lr*/ + c0 = (vector unsigned int) si_mpy((qword) texel1, si_mpy((qword) sWeights1, (qword) tWeights1)); /*ul*/ + c1 = (vector unsigned int) si_mpy((qword) texel5, si_mpy((qword) sWeights0, (qword) tWeights1)); /*ur*/ + c2 = (vector unsigned int) si_mpy((qword) texel9, si_mpy((qword) sWeights1, (qword) tWeights0)); /*ll*/ + c3 = (vector unsigned int) si_mpy((qword) texel13, si_mpy((qword) sWeights0, (qword) tWeights0)); /*lr*/ cSum = spu_add(spu_add(c0, c1), spu_add(c2, c3)); - colors[1] = spu_convtf(cSum, 24); + colors[1] = spu_convtf(cSum, 22); /* blue */ - c0 = (vector unsigned int) si_mpyu((qword) texel2, si_mpyu((qword) sWeights1, (qword) tWeights1)); /*ul*/ - c1 = (vector unsigned int) si_mpyu((qword) texel6, si_mpyu((qword) sWeights0, (qword) tWeights1)); /*ur*/ - c2 = (vector unsigned int) si_mpyu((qword) texel10, si_mpyu((qword) sWeights1, (qword) tWeights0)); /*ll*/ - c3 = (vector unsigned int) si_mpyu((qword) texel14, si_mpyu((qword) sWeights0, (qword) tWeights0)); /*lr*/ + c0 = (vector unsigned int) si_mpy((qword) texel2, si_mpy((qword) sWeights1, (qword) tWeights1)); /*ul*/ + c1 = (vector unsigned int) si_mpy((qword) texel6, si_mpy((qword) sWeights0, (qword) tWeights1)); /*ur*/ + c2 = (vector unsigned int) si_mpy((qword) texel10, si_mpy((qword) sWeights1, (qword) tWeights0)); /*ll*/ + c3 = (vector unsigned int) si_mpy((qword) texel14, si_mpy((qword) sWeights0, (qword) tWeights0)); /*lr*/ cSum = spu_add(spu_add(c0, c1), spu_add(c2, c3)); - colors[2] = spu_convtf(cSum, 24); + colors[2] = spu_convtf(cSum, 22); /* alpha */ - c0 = (vector unsigned int) si_mpyu((qword) texel3, si_mpyu((qword) sWeights1, (qword) tWeights1)); /*ul*/ - c1 = (vector unsigned int) si_mpyu((qword) texel7, si_mpyu((qword) sWeights0, (qword) tWeights1)); /*ur*/ - c2 = (vector unsigned int) si_mpyu((qword) texel11, si_mpyu((qword) sWeights1, (qword) tWeights0)); /*ll*/ - c3 = (vector unsigned int) si_mpyu((qword) texel15, si_mpyu((qword) sWeights0, (qword) tWeights0)); /*lr*/ + c0 = (vector unsigned int) si_mpy((qword) texel3, si_mpy((qword) sWeights1, (qword) tWeights1)); /*ul*/ + c1 = (vector unsigned int) si_mpy((qword) texel7, si_mpy((qword) sWeights0, (qword) tWeights1)); /*ur*/ + c2 = (vector unsigned int) si_mpy((qword) texel11, si_mpy((qword) sWeights1, (qword) tWeights0)); /*ll*/ + c3 = (vector unsigned int) si_mpy((qword) texel15, si_mpy((qword) sWeights0, (qword) tWeights0)); /*lr*/ cSum = spu_add(spu_add(c0, c1), spu_add(c2, c3)); - colors[3] = spu_convtf(cSum, 24); + colors[3] = spu_convtf(cSum, 22); } |