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st/nine: Implement TEXM3x3SPEC

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Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Axel Davy <axel.davy@ens.fr>
Cc: "10.4" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Axel Davy 2014-12-28 14:26:12 +01:00 • committed by Emil Velikov
parent 2b9f079ae3
commit 3676ab02fb
1 changed files with 38 additions and 1 deletions
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39
src/gallium/state_trackers/nine/nine_shader.c
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@ -2170,7 +2170,44 @@ DECL_SPECIAL(TEXM3x3PAD)
DECL_SPECIAL(TEXM3x3SPEC)
{
STUB(D3DERR_INVALIDCALL);
struct ureg_program *ureg = tx->ureg;
struct ureg_dst dst = tx_dst_param(tx, &tx->insn.dst[0]);
struct ureg_src E = tx_src_param(tx, &tx->insn.src[1]);
struct ureg_src sample;
struct ureg_dst tmp;
const int m = tx->insn.dst[0].idx - 2;
const int n = tx->insn.src[0].idx;
assert(m >= 0 && m > n);
tx_texcoord_alloc(tx, m);
tx_texcoord_alloc(tx, m+1);
tx_texcoord_alloc(tx, m+2);
ureg_DP3(ureg, ureg_writemask(dst, TGSI_WRITEMASK_X), tx->regs.vT[m], ureg_src(tx->regs.tS[n]));
ureg_DP3(ureg, ureg_writemask(dst, TGSI_WRITEMASK_Y), tx->regs.vT[m+1], ureg_src(tx->regs.tS[n]));
ureg_DP3(ureg, ureg_writemask(dst, TGSI_WRITEMASK_Z), tx->regs.vT[m+2], ureg_src(tx->regs.tS[n]));
sample = ureg_DECL_sampler(ureg, m + 2);
tx->info->sampler_mask |= 1 << (m + 2);
tmp = ureg_writemask(tx_scratch(tx), TGSI_WRITEMASK_XYZ);
/* At this step, dst = N = (u', w', z').
* We want dst to be the texture sampled at (u'', w'', z''), with
* (u'', w'', z'') = 2 * (N.E / N.N) * N - E */
ureg_DP3(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_src(dst), ureg_src(dst));
ureg_RCP(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X));
/* at this step tmp.x = 1/N.N */
ureg_DP3(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_Y), ureg_src(dst), E);
/* at this step tmp.y = N.E */
ureg_MUL(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y));
/* at this step tmp.x = N.E/N.N */
ureg_MUL(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), ureg_imm1f(ureg, 2.0f));
ureg_MUL(ureg, tmp, ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), ureg_src(dst));
/* at this step tmp.xyz = 2 * (N.E / N.N) * N */
ureg_SUB(ureg, tmp, ureg_src(tmp), E);
ureg_TEX(ureg, dst, ps1x_sampler_type(tx->info, m + 2), ureg_src(tmp), sample);
return D3D_OK;
}
DECL_SPECIAL(TEXREG2RGB)