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vkd3d-shader/hlsl: Lower sample lods for SM1.

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For SM1 the lod bias should be in src0.w.
This commit is contained in:
Francisco Casas 2024-12-04 01:12:00 -03:00 committed by Henri Verbeet
parent f09ac4959e
commit 59df26af79
Notes: Henri Verbeet 2024-12-18 17:39:16 +01:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1310
1 changed files with 47 additions and 1 deletions
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48
libs/vkd3d-shader/hlsl_codegen.c
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@ -3541,6 +3541,51 @@ static bool lower_ternary(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, stru
return true;
}
static bool lower_resource_load_bias(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_ir_node *swizzle, *store;
struct hlsl_ir_resource_load *load;
struct hlsl_ir_load *tmp_load;
struct hlsl_ir_var *tmp_var;
struct hlsl_deref deref;
if (instr->type != HLSL_IR_RESOURCE_LOAD)
return false;
load = hlsl_ir_resource_load(instr);
if (load->load_type != HLSL_RESOURCE_SAMPLE_LOD
&& load->load_type != HLSL_RESOURCE_SAMPLE_LOD_BIAS)
return false;
if (!load->lod.node)
return false;
if (!(tmp_var = hlsl_new_synthetic_var(ctx, "coords-with-lod",
hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, 4), &instr->loc)))
return false;
if (!(swizzle = hlsl_new_swizzle(ctx, HLSL_SWIZZLE(X, X, X, X), 4, load->lod.node, &load->lod.node->loc)))
return false;
list_add_before(&instr->entry, &swizzle->entry);
if (!(store = hlsl_new_simple_store(ctx, tmp_var, swizzle)))
return false;
list_add_before(&instr->entry, &store->entry);
hlsl_init_simple_deref_from_var(&deref, tmp_var);
if (!(store = hlsl_new_store_index(ctx, &deref, NULL, load->coords.node, 0, &instr->loc)))
return false;
list_add_before(&instr->entry, &store->entry);
if (!(tmp_load = hlsl_new_var_load(ctx, tmp_var, &instr->loc)))
return false;
list_add_before(&instr->entry, &tmp_load->node.entry);
hlsl_src_remove(&load->coords);
hlsl_src_from_node(&load->coords, &tmp_load->node);
hlsl_src_remove(&load->lod);
return true;
}
static bool lower_comparison_operators(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,
struct hlsl_block *block)
{
@ -11059,13 +11104,14 @@ static void process_entry_function(struct hlsl_ctx *ctx,
append_output_var_copy(ctx, entry_func, entry_func->return_var);
}
if (profile->major_version >= 4)
if (hlsl_version_ge(ctx, 4, 0))
{
hlsl_transform_ir(ctx, lower_discard_neg, body, NULL);
}
else
{
hlsl_transform_ir(ctx, lower_discard_nz, body, NULL);
hlsl_transform_ir(ctx, lower_resource_load_bias, body, NULL);
}
loop_unrolling_execute(ctx, body);