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vkd3d-shader/hlsl: Validate and record stream output objects.

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Validation should only be done for stream outputs that are used.
This commit is contained in:
Shaun Ren
2025-03-18 16:33:53 -04:00
committed by Henri Verbeet
parent f2f44b054d
commit 2a89b23ede
Notes: Henri Verbeet 2025-04-23 18:18:33 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1458
3 changed files with 65 additions and 3 deletions
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1
libs/vkd3d-shader/hlsl.c
View File

@@ -4859,6 +4859,7 @@ static bool hlsl_ctx_init(struct hlsl_ctx *ctx, const struct vkd3d_shader_compil
ctx->input_control_point_count = UINT_MAX;
ctx->max_vertex_count = 0;
ctx->input_primitive_type = VKD3D_PT_UNDEFINED;
ctx->output_topology_type = VKD3D_PT_UNDEFINED;
return true;
}

2
libs/vkd3d-shader/hlsl.h
View File

@@ -1213,6 +1213,8 @@ struct hlsl_ctx
unsigned int max_vertex_count;
/* The input primitive type of a geometry shader. */
enum vkd3d_primitive_type input_primitive_type;
/* The output topology type of a geometry shader. */
enum vkd3d_primitive_type output_topology_type;
/* In some cases we generate opcodes by parsing an HLSL function and then
* invoking it. If not NULL, this field is the name of the function that we

65
libs/vkd3d-shader/hlsl_codegen.c
View File

@@ -7583,6 +7583,64 @@ static void validate_and_record_prim_type(struct hlsl_ctx *ctx, struct hlsl_ir_v
ctx->input_primitive_param = var;
}
static void validate_and_record_stream_outputs(struct hlsl_ctx *ctx)
{
static const enum vkd3d_primitive_type prim_types[] =
{
[HLSL_STREAM_OUTPUT_POINT_STREAM] = VKD3D_PT_POINTLIST,
[HLSL_STREAM_OUTPUT_LINE_STREAM] = VKD3D_PT_LINESTRIP,
[HLSL_STREAM_OUTPUT_TRIANGLE_STREAM] = VKD3D_PT_TRIANGLESTRIP,
};
bool reported_non_point_multistream = false, reported_nonzero_index = false, reported_invalid_index = false;
enum hlsl_so_object_type so_type;
const struct hlsl_type *type;
struct hlsl_ir_var *var;
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
if (!var->bind_count[HLSL_REGSET_STREAM_OUTPUTS])
continue;
type = hlsl_get_stream_output_type(var->data_type);
so_type = type->e.so.so_type;
VKD3D_ASSERT(so_type < ARRAY_SIZE(prim_types));
if (ctx->output_topology_type == VKD3D_PT_UNDEFINED)
{
ctx->output_topology_type = prim_types[so_type];
}
else
{
if ((so_type != HLSL_STREAM_OUTPUT_POINT_STREAM || ctx->output_topology_type != VKD3D_PT_POINTLIST)
&& !reported_non_point_multistream)
{
hlsl_error(ctx, &var->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE,
"Multiple output streams are only allowed with PointStream objects.");
reported_non_point_multistream = true;
}
}
if (var->regs[HLSL_REGSET_STREAM_OUTPUTS].index && hlsl_version_lt(ctx, 5, 0) && !reported_nonzero_index)
{
hlsl_error(ctx, &var->loc, VKD3D_SHADER_ERROR_HLSL_INCOMPATIBLE_PROFILE,
"Multiple output streams are only supported in shader model 5.0 or higher.");
reported_nonzero_index = true;
}
if (var->regs[HLSL_REGSET_STREAM_OUTPUTS].index >= VKD3D_MAX_STREAM_COUNT && !reported_invalid_index)
{
hlsl_error(ctx, &var->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SIZE,
"Output stream index %u exceeds the maximum index %u.",
var->regs[HLSL_REGSET_STREAM_OUTPUTS].index, VKD3D_MAX_STREAM_COUNT - 1);
reported_invalid_index = true;
}
}
/* TODO: check that maxvertexcount * outputdatasize <= 1024. */
}
static void remove_unreachable_code(struct hlsl_ctx *ctx, struct hlsl_block *body)
{
struct hlsl_ir_node *instr, *next;
@@ -11995,7 +12053,7 @@ static void sm4_generate_vsir(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl
{
program->input_control_point_count = ctx->input_control_point_count;
program->input_primitive = ctx->input_primitive_type;
program->output_topology = VKD3D_PT_UNDEFINED; /* TODO: obtain from stream output parameters. */
program->output_topology = ctx->output_topology_type;
program->vertices_out_count = ctx->max_vertex_count;
}
@@ -13285,8 +13343,6 @@ static void process_entry_function(struct hlsl_ctx *ctx,
hlsl_error(ctx, &var->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER,
"Stream output parameter \"%s\" must be declared as \"inout\".", var->name);
/* TODO: check that maxvertexcount * component_count(element_type) <= 1024. */
prepend_uniform_copy(ctx, body, var);
}
else
@@ -13402,7 +13458,10 @@ static void process_entry_function(struct hlsl_ctx *ctx,
sort_synthetic_separated_samplers_first(ctx);
if (profile->type == VKD3D_SHADER_TYPE_GEOMETRY)
{
allocate_stream_outputs(ctx);
validate_and_record_stream_outputs(ctx);
}
if (profile->major_version < 4)
{