AuroraMiddleware/SPIRV-Cross
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This commit is contained in:
Robert Konrad 2017-01-15 16:39:03 +01:00
parent fe5de5e03c
commit a778c363e1
4 changed files with 64 additions and 47 deletions
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6
spirv_cross.cpp
View File

@ -2388,8 +2388,10 @@ SPIREntryPoint &Compiler::get_entry_point()
bool Compiler::interface_variable_exists_in_entry_point(uint32_t id) const
{
auto &var = get<SPIRVariable>(id);
if (var.storage != StorageClassInput && var.storage != StorageClassOutput && var.storage != StorageClassUniformConstant)
throw CompilerError("Only Input, Output variables and Uniform constants are part of a shader linking interface.");
if (var.storage != StorageClassInput && var.storage != StorageClassOutput &&
var.storage != StorageClassUniformConstant)
throw CompilerError(
"Only Input, Output variables and Uniform constants are part of a shader linking interface.");
// This is to avoid potential problems with very old glslang versions which did
// not emit input/output interfaces properly.

51
spirv_msl.cpp
View File

@ -158,7 +158,8 @@ void CompilerMSL::extract_global_variables_from_functions()
{
auto &var = id.get<SPIRVariable>();
if (var.storage == StorageClassInput || var.storage == StorageClassUniform ||
var.storage == StorageClassUniformConstant || var.storage == StorageClassPushConstant) {
var.storage == StorageClassUniformConstant || var.storage == StorageClassPushConstant)
{
global_var_ids.insert(var.self);
}
}
@ -177,7 +178,8 @@ void CompilerMSL::extract_global_variables_from_function(uint32_t func_id, std::
std::unordered_set<uint32_t> &processed_func_ids)
{
// Avoid processing a function more than once
if (processed_func_ids.find(func_id) != processed_func_ids.end()) {
if (processed_func_ids.find(func_id) != processed_func_ids.end())
{
// Return function global variables
added_arg_ids = function_global_vars[func_id];
return;
@ -328,7 +330,6 @@ uint32_t CompilerMSL::add_interface_block(StorageClass storage)
ib_var_ref = stage_uniform_var_name;
}
default:
break;
}
@ -375,9 +376,11 @@ uint32_t CompilerMSL::add_interface_block(StorageClass storage)
mbr_idx++;
}
}
else if (type.basetype == SPIRType::Boolean || type.basetype == SPIRType::Char || type.basetype == SPIRType::Int ||
type.basetype == SPIRType::UInt || type.basetype == SPIRType::Int64 || type.basetype == SPIRType::UInt64 ||
type.basetype == SPIRType::Float || type.basetype == SPIRType::Double || type.basetype == SPIRType::Boolean)
else if (type.basetype == SPIRType::Boolean || type.basetype == SPIRType::Char ||
type.basetype == SPIRType::Int || type.basetype == SPIRType::UInt ||
type.basetype == SPIRType::Int64 || type.basetype == SPIRType::UInt64 ||
type.basetype == SPIRType::Float || type.basetype == SPIRType::Double ||
type.basetype == SPIRType::Boolean)
{
// Add a reference to the variable type to the interface struct.
uint32_t ib_mbr_idx = uint32_t(ib_type.member_types.size());
@ -394,7 +397,8 @@ uint32_t CompilerMSL::add_interface_block(StorageClass storage)
// Copy the variable location from the original variable to the member
auto &dec = meta[p_var->self].decoration;
uint32_t locn = dec.location;
if (is_decoration_set(p_var->self, DecorationLocation)) {
if (is_decoration_set(p_var->self, DecorationLocation))
{
set_member_decoration(ib_type.self, ib_mbr_idx, DecorationLocation, locn);
}
mark_location_as_used_by_shader(locn, storage);
@ -421,7 +425,8 @@ uint32_t CompilerMSL::add_interface_block(StorageClass storage)
// Sort input or output variables alphabetical
auto &execution = get_entry_point();
if ((execution.model == ExecutionModelFragment && storage == StorageClassInput) ||
(execution.model == ExecutionModelVertex && storage == StorageClassOutput)) {
(execution.model == ExecutionModelVertex && storage == StorageClassOutput))
{
MemberSorter memberSorter(ib_type, meta[ib_type.self], MemberSorter::Alphabetical);
memberSorter.sort();
}
@ -666,9 +671,11 @@ void CompilerMSL::emit_function_declarations()
if (id.get_type() == TypeFunction)
{
auto &func = id.get<SPIRFunction>();
if (func.self != entry_point) {
if (func.self != entry_point)
{
auto &dec = meta[func.self].decoration;
if (dec.alias[0] != 'm') {
if (dec.alias[0] != 'm')
{
// Add prefix to all fuctions in order to avoid ambiguous function names (e.g. builtin functions)
// TODO: check if current function is a builtin function
dec.alias = join("m", dec.alias);
@ -1048,7 +1055,8 @@ void CompilerMSL::emit_fixup()
/*const char *suffix = backend.float_literal_suffix ? "f" : "";
statement(qual_pos_var_name, ".z = 2.0", suffix, " * ", qual_pos_var_name, ".z - ", qual_pos_var_name,
".w;", " // Adjust clip-space for Metal");*/
statement(qual_pos_var_name, ".z = (", qual_pos_var_name, ".z + ", qual_pos_var_name, ".w) * 0.5; // Adjust clip-space for Metal");
statement(qual_pos_var_name, ".z = (", qual_pos_var_name, ".z + ", qual_pos_var_name,
".w) * 0.5; // Adjust clip-space for Metal");
}
if (msl_config.flip_vert_y)
@ -1261,8 +1269,10 @@ string CompilerMSL::clean_func_name(string func_name)
return (iter != func_name_overrides.end()) ? iter->second : func_name;
}
void CompilerMSL::set_entry_point_name(string func_name) {
if (func_name.find("main") == std::string::npos) func_name += "_main";
void CompilerMSL::set_entry_point_name(string func_name)
{
if (func_name.find("main") == std::string::npos)
func_name += "_main";
meta.at(entry_point).decoration.alias = func_name;
}
@ -1382,7 +1392,8 @@ uint32_t CompilerMSL::get_metal_resource_index(SPIRVariable &var, SPIRType::Base
switch (basetype)
{
case SPIRType::Struct:
if (execution.model == ExecutionModelVertex && next_metal_resource_index.msl_buffer == 0) next_metal_resource_index.msl_buffer = 1;
if (execution.model == ExecutionModelVertex && next_metal_resource_index.msl_buffer == 0)
next_metal_resource_index.msl_buffer = 1;
return next_metal_resource_index.msl_buffer++;
case SPIRType::Image:
return next_metal_resource_index.msl_texture++;
@ -1408,7 +1419,8 @@ string CompilerMSL::argument_decl(const SPIRFunction::Parameter &arg)
bool pointer = type.storage == StorageClassUniformConstant;
auto &var = get<SPIRVariable>(arg.id);
return join(constref ? "const " : "", type_to_glsl(type), pointer ? " " : "& ", to_name(var.self), type_to_array_glsl(type));
return join(constref ? "const " : "", type_to_glsl(type), pointer ? " " : "& ", to_name(var.self),
type_to_array_glsl(type));
}
// If we're currently in the entry point function, and the object
@ -1443,13 +1455,16 @@ string CompilerMSL::to_qualified_member_name(const SPIRType &type, uint32_t inde
// if the first chars are _ and a digit, which indicate a transient name.
string CompilerMSL::ensure_valid_name(string name, string pfx)
{
if (name.size() >= 2 && name[0] == '_' && isdigit(name[1])) {
if (name.size() >= 2 && name[0] == '_' && isdigit(name[1]))
{
return join(pfx, name);
}
else if (std::find(reserved_names.begin(), reserved_names.end(), name) != reserved_names.end()) {
else if (std::find(reserved_names.begin(), reserved_names.end(), name) != reserved_names.end())
{
return join(pfx, name);
}
else {
else
{
return name;
}
}

2
spirv_msl.hpp
View File

@ -168,7 +168,7 @@ protected:
std::string stage_out_var_name = "out";
std::string stage_uniform_var_name = "uniforms";
std::string sampler_name_suffix = "Smplr";
std::vector<std::string> reserved_names = {"kernel", "bias"};
std::vector<std::string> reserved_names = { "kernel", "bias" };
// Extracts a set of opcodes that should be implemented as a bespoke custom function
// whose full source code is output as part of the shader source code.