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Declare ByteAddressBuffer/RWByteAddressBuffer.

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This commit is contained in:
Hans-Kristian Arntzen 2017-08-10 17:22:32 +02:00
parent 7d7f4b3b50
commit 247ab1ce24
1 changed files with 42 additions and 32 deletions
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74
spirv_hlsl.cpp
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@ -910,45 +910,55 @@ void CompilerHLSL::emit_buffer_block(const SPIRVariable &var)
{
auto &type = get<SPIRType>(var.basetype);
//bool is_uav = has_decoration(type.self, DecorationBufferBlock);
//if (is_uav)
// SPIRV_CROSS_THROW("Buffer is SSBO (UAV). This is currently unsupported.");
bool is_uav = has_decoration(type.self, DecorationBufferBlock);
add_resource_name(type.self);
string struct_name;
if (options.shader_model >= 51)
struct_name = to_name(type.self);
else
struct_name = join("_", to_name(type.self));
// First, declare the struct of the UBO.
statement("struct ", struct_name);
begin_scope();
type.member_name_cache.clear();
uint32_t i = 0;
for (auto &member : type.member_types)
if (is_uav)
{
add_member_name(type, i);
emit_struct_member(type, member, i);
i++;
}
end_scope_decl();
statement("");
if (options.shader_model >= 51) // SM 5.1 uses ConstantBuffer<T> instead of cbuffer.
{
statement("ConstantBuffer<", struct_name, "> ", to_name(var.self), type_to_array_glsl(type),
to_resource_binding(var), ";");
uint64_t flags = get_buffer_block_flags(var);
bool is_readonly = (flags & (1ull << DecorationNonWritable)) != 0;
add_resource_name(var.self);
statement(is_readonly ? "ByteAddressBuffer " : "RWByteAddressBuffer ",
to_name(var.self), type_to_array_glsl(type), to_resource_binding(var), ";");
}
else
{
statement("cbuffer ", to_name(type.self), to_resource_binding(var));
add_resource_name(type.self);
add_resource_name(var.self);
string struct_name;
if (options.shader_model >= 51)
struct_name = to_name(type.self);
else
struct_name = join("_", to_name(type.self));
// First, declare the struct of the UBO.
statement("struct ", struct_name);
begin_scope();
statement(struct_name, " ", to_name(var.self), type_to_array_glsl(type), ";");
type.member_name_cache.clear();
uint32_t i = 0;
for (auto &member : type.member_types)
{
add_member_name(type, i);
emit_struct_member(type, member, i);
i++;
}
end_scope_decl();
statement("");
if (options.shader_model >= 51) // SM 5.1 uses ConstantBuffer<T> instead of cbuffer.
{
statement("ConstantBuffer<", struct_name, "> ", to_name(var.self), type_to_array_glsl(type),
to_resource_binding(var), ";");
}
else
{
statement("cbuffer ", to_name(type.self), to_resource_binding(var));
begin_scope();
statement(struct_name, " ", to_name(var.self), type_to_array_glsl(type), ";");
end_scope_decl();
}
}
}