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Merge pull request #768 from KhronosGroup/fix-764

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Remove old hack for dealing with HLSL counter buffers.
This commit is contained in:
Hans-Kristian Arntzen 2018-11-22 11:17:13 +01:00 committed by GitHub
commit f247b05ffd
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3 changed files with 5 additions and 62 deletions
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10
spirv_common.hpp
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@ -1326,15 +1326,7 @@ struct Meta
std::unordered_map<uint32_t, uint32_t> decoration_word_offset;
// Used when the parser has detected a candidate identifier which matches
// known "magic" counter buffers as emitted by HLSL frontends.
// We will need to match the identifiers by name later when reflecting resources.
// We could use the regular alias later, but the alias will be mangled when parsing SPIR-V because the identifier
// is not a valid identifier in any high-level language.
std::string hlsl_magic_counter_buffer_name;
bool hlsl_magic_counter_buffer_candidate = false;
// For SPV_GOOGLE_hlsl_functionality1, this avoids the workaround.
// For SPV_GOOGLE_hlsl_functionality1.
bool hlsl_is_magic_counter_buffer = false;
// ID for the sibling counter buffer.
uint32_t hlsl_magic_counter_buffer = 0;

38
spirv_cross.cpp
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@ -3481,22 +3481,7 @@ bool Compiler::CombinedImageSamplerUsageHandler::handle(Op opcode, const uint32_
bool Compiler::buffer_is_hlsl_counter_buffer(uint32_t id) const
{
// First, check for the proper decoration.
if (ir.meta.at(id).hlsl_is_magic_counter_buffer)
return true;
// Check for legacy fallback method.
// FIXME: This should be deprecated eventually.
if (ir.meta.at(id).hlsl_magic_counter_buffer_candidate)
{
auto *var = maybe_get<SPIRVariable>(id);
// Ensure that this is actually a buffer object.
return var && (var->storage == StorageClassStorageBuffer ||
has_decoration(get<SPIRType>(var->basetype).self, DecorationBufferBlock));
}
else
return false;
return ir.meta.at(id).hlsl_is_magic_counter_buffer;
}
bool Compiler::buffer_get_hlsl_counter_buffer(uint32_t id, uint32_t &counter_id) const
@ -3507,26 +3492,7 @@ bool Compiler::buffer_get_hlsl_counter_buffer(uint32_t id, uint32_t &counter_id)
counter_id = ir.meta[id].hlsl_magic_counter_buffer;
return true;
}
// Check for legacy fallback method.
// FIXME: This should be deprecated eventually.
auto &name = get_name(id);
uint32_t id_bound = get_current_id_bound();
for (uint32_t i = 0; i < id_bound; i++)
{
if (ir.meta[i].hlsl_magic_counter_buffer_candidate && ir.meta[i].hlsl_magic_counter_buffer_name == name)
{
auto *var = maybe_get<SPIRVariable>(i);
// Ensure that this is actually a buffer object.
if (var && (var->storage == StorageClassStorageBuffer ||
has_decoration(get<SPIRType>(var->basetype).self, DecorationBufferBlock)))
{
counter_id = i;
return true;
}
}
}
else
return false;
}

17
spirv_cross_parsed_ir.cpp
View File

@ -88,21 +88,6 @@ void ParsedIR::set_name(uint32_t id, const string &name)
if (name.empty())
return;
// glslang uses identifiers to pass along meaningful information
// about HLSL reflection.
// FIXME: This should be deprecated eventually.
auto &m = meta[id];
if (source.hlsl && name.size() >= 6 && name.find("@count") == name.size() - 6)
{
m.hlsl_magic_counter_buffer_candidate = true;
m.hlsl_magic_counter_buffer_name = name.substr(0, name.find("@count"));
}
else
{
m.hlsl_magic_counter_buffer_candidate = false;
m.hlsl_magic_counter_buffer_name.clear();
}
// Reserved for temporaries.
if (name[0] == '_' && name.size() >= 2 && isdigit(name[1]))
return;
@ -196,7 +181,7 @@ void ParsedIR::set_decoration(uint32_t id, Decoration decoration, uint32_t argum
case DecorationHlslCounterBufferGOOGLE:
meta[id].hlsl_magic_counter_buffer = argument;
meta[id].hlsl_is_magic_counter_buffer = true;
meta[argument].hlsl_is_magic_counter_buffer = true;
break;
default: