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zink: support offset-variants of texturing

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3275>
This commit is contained in:
Erik Faye-Lund
2020-01-02 11:26:38 +01:00
committed by Marge Bot
parent f1a5bcdc16
commit 8112240d29
3 changed files with 17 additions and 5 deletions
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10
src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
View File

@@ -1372,7 +1372,8 @@ emit_tex(struct ntv_context *ctx, nir_tex_instr *tex)
nir_alu_type_get_base_type(tex->dest_type) == nir_type_float);
assert(tex->texture_index == tex->sampler_index);
SpvId coord = 0, proj = 0, bias = 0, lod = 0, dref = 0, dx = 0, dy = 0;
SpvId coord = 0, proj = 0, bias = 0, lod = 0, dref = 0, dx = 0, dy = 0,
offset = 0;
unsigned coord_components = 0;
for (unsigned i = 0; i < tex->num_srcs; i++) {
switch (tex->src[i].src_type) {
@@ -1390,6 +1391,10 @@ emit_tex(struct ntv_context *ctx, nir_tex_instr *tex)
assert(proj != 0);
break;
case nir_tex_src_offset:
offset = get_src_int(ctx, &tex->src[i].src);
break;
case nir_tex_src_bias:
assert(tex->op == nir_texop_txb);
bias = get_src_float(ctx, &tex->src[i].src);
@@ -1494,7 +1499,8 @@ emit_tex(struct ntv_context *ctx, nir_tex_instr *tex)
actual_dest_type, load,
coord,
proj != 0,
lod, bias, dref, dx, dy);
lod, bias, dref, dx, dy,
offset);
}
spirv_builder_emit_decoration(&ctx->builder, result,

9
src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
View File

@@ -515,7 +515,8 @@ spirv_builder_emit_image_sample(struct spirv_builder *b,
SpvId bias,
SpvId dref,
SpvId dx,
SpvId dy)
SpvId dy,
SpvId offset)
{
SpvId result = spirv_builder_new_id(b);
@@ -531,7 +532,7 @@ spirv_builder_emit_image_sample(struct spirv_builder *b,
}
SpvImageOperandsMask operand_mask = SpvImageOperandsMaskNone;
SpvId extra_operands[4];
SpvId extra_operands[5];
int num_extra_operands = 0;
if (bias) {
extra_operands[++num_extra_operands] = bias;
@@ -545,6 +546,10 @@ spirv_builder_emit_image_sample(struct spirv_builder *b,
extra_operands[++num_extra_operands] = dy;
operand_mask |= SpvImageOperandsGradMask;
}
if (offset) {
extra_operands[++num_extra_operands] = offset;
operand_mask |= SpvImageOperandsOffsetMask;
}
/* finalize num_extra_operands / extra_operands */
if (num_extra_operands > 0) {

3
src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
View File

@@ -215,7 +215,8 @@ spirv_builder_emit_image_sample(struct spirv_builder *b,
SpvId bias,
SpvId dref,
SpvId dx,
SpvId dy);
SpvId dy,
SpvId offset);
SpvId
spirv_builder_emit_image(struct spirv_builder *b, SpvId result_type,