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v3d: Add support for non-constant texture offsets.

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Fixes
dEQP-GLES31.functional.texture.gather.offset_dynamic.min_required_offset.2d.rgba8.size_pot.clamp_to_edge_repeat
and others.
This commit is contained in:
Eric Anholt
2018-12-26 23:35:22 -08:00
parent 47caefc7b4
commit 906fca1b4b
1 changed files with 23 additions and 7 deletions
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16
src/broadcom/compiler/v3d40_tex.c
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@@ -132,6 +132,7 @@ v3d40_vir_emit_tex(struct v3d_compile *c, nir_tex_instr *instr)
break;
case nir_tex_src_offset: {
if (nir_src_is_const(instr->src[i].src)) {
nir_const_value *offset =
nir_src_as_const_value(instr->src[i].src);
@@ -140,6 +141,21 @@ v3d40_vir_emit_tex(struct v3d_compile *c, nir_tex_instr *instr)
p2_unpacked.offset_t = offset->i32[1];
if (instr->coord_components >= 3)
p2_unpacked.offset_r = offset->i32[2];
} else {
struct qreg mask = vir_uniform_ui(c, 0xf);
struct qreg x, y, offset;
x = vir_AND(c, ntq_get_src(c, instr->src[i].src,
0), mask);
y = vir_AND(c, ntq_get_src(c, instr->src[i].src,
1), mask);
offset = vir_OR(c, x,
vir_SHL(c, y,
vir_uniform_ui(c, 4)));
vir_TMU_WRITE(c, V3D_QPU_WADDR_TMUOFF,
offset, &tmu_writes);
}
break;
}