+#include <msp/core/algorithm.h>
#include <msp/io/print.h>
+#include "device.h"
#include "module.h"
#include "resources.h"
using namespace std;
+enum SpirVConstants
+{
+ SPIRV_MAGIC = 0x07230203,
+ SPIRV_MAGIC_REVERSED = 0x03022307,
+
+ OP_NAME = 5,
+ OP_MEMBER_NAME = 6,
+ OP_ENTRY_POINT = 15,
+ OP_EXECUTION_MODE = 16,
+ OP_TYPE_VOID = 19,
+ OP_TYPE_BOOL = 20,
+ OP_TYPE_INT = 21,
+ OP_TYPE_FLOAT = 22,
+ OP_TYPE_VECTOR = 23,
+ OP_TYPE_MATRIX = 24,
+ OP_TYPE_IMAGE = 25,
+ OP_TYPE_SAMPLED_IMAGE = 27,
+ OP_TYPE_ARRAY = 28,
+ OP_TYPE_STRUCT = 30,
+ OP_TYPE_POINTER = 32,
+ OP_CONSTANT_TRUE = 41,
+ OP_CONSTANT_FALSE = 42,
+ OP_CONSTANT = 43,
+ OP_SPEC_CONSTANT_TRUE = 48,
+ OP_SPEC_CONSTANT_FALSE = 49,
+ OP_SPEC_CONSTANT = 50,
+ OP_VARIABLE = 59,
+ OP_LOAD = 61,
+ OP_STORE = 62,
+ OP_ACCESS_CHAIN = 65,
+ OP_DECORATE = 71,
+ OP_MEMBER_DECORATE = 72,
+ OP_COPY_OBJECT = 83,
+ OP_PHI = 245,
+ OP_SELECTION_MERGE = 247,
+ OP_LABEL = 248,
+ OP_BRANCH = 249,
+ OP_BRANCH_CONDITIONAL = 250,
+ OP_SWITCH = 251,
+ OP_KILL = 252,
+ OP_RETURN = 253,
+ OP_RETURN_VALUE = 254,
+ OP_UNREACHABLE = 255,
+
+ EXEC_LOCAL_SIZE = 17,
+
+ DECO_SPEC_ID = 1,
+ DECO_ARRAY_STRIDE = 6,
+ DECO_MATRIX_STRIDE = 7,
+ DECO_BUILTIN = 11,
+ DECO_LOCATION = 30,
+ DECO_BINDING = 33,
+ DECO_DESCRIPTOR_SET = 34,
+ DECO_OFFSET = 35
+};
+
namespace Msp {
namespace GL {
void Module::set_source(const string &src)
{
- SL::Compiler compiler;
+ SL::Compiler compiler(create_features());
compiler.set_source(src);
compile(compiler);
}
void Module::load_source(IO::Base &io, Resources *res, const string &name)
{
- SL::Compiler compiler;
+ SL::Compiler compiler(create_features());
compiler.load_source(io, res, name);
compile(compiler);
}
load_source(io, 0, name);
}
+SL::Features Module::create_features() const
+{
+ const DeviceInfo &dev_info = Device::get_current().get_info();
+ const SL::Features &device_features = dev_info.glsl_features;
+ SL::Features latest_features = SL::Features::latest(dev_info.api);
+ SL::Features features;
+ features.target_api = latest_features.target_api;
+ features.glsl_version = latest_features.glsl_version;
+ features.constant_id_range = device_features.constant_id_range;
+ features.uniform_binding_range = device_features.uniform_binding_range;
+ features.texture_binding_range = device_features.texture_binding_range;
+ return features;
+}
+
void GlslModule::compile(SL::Compiler &compiler)
{
compiler.compile(SL::Compiler::MODULE);
prepared_source = compiler.get_combined_glsl();
source_map = compiler.get_source_map();
+
#ifdef DEBUG
string diagnostics = compiler.get_diagnostics();
if(!diagnostics.empty())
#endif
}
+
+void SpirVModule::load_code(IO::Base &io)
+{
+ uint32_t buffer[1024];
+ while(1)
+ {
+ unsigned len = io.read(reinterpret_cast<char *>(buffer), sizeof(buffer));
+ if(!len)
+ break;
+ len /= 4;
+ code.reserve(code.size()+len);
+ code.insert(code.end(), buffer, buffer+len);
+ }
+
+ reflect();
+ create();
+}
+
+void SpirVModule::compile(SL::Compiler &compiler)
+{
+ compiler.compile(SL::Compiler::SPIRV);
+ code = compiler.get_combined_spirv();
+ reflect();
+ create();
+}
+
+void SpirVModule::reflect()
+{
+ if(code.empty())
+ throw invalid_module("Empty SPIR-V code");
+
+ if(code[0]==SPIRV_MAGIC_REVERSED)
+ {
+ for(uint32_t &c: code)
+ c = ((c&0xFF)<<24) || ((c&0xFF00)<<8) | ((c>>8)&0xFF00) | ((c>>24)&0xFF);
+ }
+ else if(code[0]!=SPIRV_MAGIC)
+ throw invalid_module("SPIR-V magic number not found");
+
+ Reflection reflection;
+ reflection.reflect_code(code);
+
+ map<const Constant *, unsigned> spec_indices;
+ for(const auto &kvp: reflection.constants)
+ if(kvp.second.constant_id>=0)
+ {
+ spec_indices[&kvp.second] = spec_constants.size();
+ spec_constants.push_back(kvp.second);
+ }
+
+ map<const Structure *, unsigned> struct_indices;
+ structs.reserve(reflection.structs.size());
+ for(const auto &kvp: reflection.structs)
+ {
+ struct_indices[&kvp.second] = structs.size();
+ structs.push_back(kvp.second);
+ }
+
+ for(Structure &s: structs)
+ {
+ for(StructMember &m: s.members)
+ if(m.struct_type)
+ {
+ auto i = struct_indices.find(m.struct_type);
+ m.struct_type = (i!=struct_indices.end() ? &structs[i->second] : 0);
+ }
+
+ const StructMember *last_member = &s.members.back();
+ unsigned last_offset = last_member->offset;
+ while(last_member->struct_type)
+ {
+ const StructMember *lm = &last_member->struct_type->members.back();
+ if(last_member->array_size)
+ last_offset += last_member->array_stride*(last_member->array_size-1);
+ last_offset += lm->offset;
+ last_member = lm;
+ }
+
+ unsigned last_size = get_type_size(last_member->type);
+ if(last_member->array_size)
+ last_size += last_member->array_stride*(last_member->array_size-1);
+ s.size = last_offset+last_size;
+ s.size = (s.size+15)&~15;
+ }
+
+ map<const Variable *, unsigned> var_indices;
+ variables.reserve(reflection.variables.size());
+ for(const auto &kvp: reflection.variables)
+ {
+ auto i = find_if(variables, [&kvp](const Variable &v){ return v==kvp.second; });
+ if(i!=variables.end())
+ var_indices[&kvp.second] = i-variables.begin();
+ else
+ {
+ var_indices[&kvp.second] = variables.size();
+ variables.push_back(kvp.second);
+ }
+ }
+
+ for(Variable &v: variables)
+ if(v.struct_type)
+ {
+ auto i = struct_indices.find(v.struct_type);
+ v.struct_type = (i!=struct_indices.end() ? &structs[i->second] : 0);
+ }
+
+ entry_points.reserve(reflection.entry_points.size());
+ for(const auto &kvp: reflection.entry_points)
+ {
+ entry_points.push_back(kvp.second);
+ EntryPoint &entry = entry_points.back();
+ for(const Variable *&v: entry.globals)
+ {
+ auto i = var_indices.find(v);
+ v = (i!=var_indices.end() ? &variables[i->second] : 0);
+ }
+ }
+
+ map<const InstructionBlock *, unsigned> block_indices;
+ blocks.reserve(reflection.blocks.size());
+ for(const auto &kvp: reflection.blocks)
+ {
+ block_indices[&kvp.second] = blocks.size();
+ blocks.push_back(kvp.second);
+ }
+
+ for(InstructionBlock &b: blocks)
+ {
+ auto i = spec_indices.find(b.condition);
+ b.condition = (i!=spec_indices.end() ? &spec_constants[i->second] : 0);
+ if(b.condition)
+ specializable = true;
+
+ for(const Variable *&v: b.accessed_variables)
+ {
+ auto j = var_indices.find(v);
+ v = (j!=var_indices.end() ? &variables[j->second] : 0);
+ }
+
+ for(const InstructionBlock *&s: b.successors)
+ {
+ auto j = block_indices.find(s);
+ s = (j!=block_indices.end() ? &blocks[j->second] : 0);
+ }
+ }
+}
+
+SpirVModule *SpirVModule::specialize(const map<string, int> &spec_values) const
+{
+ vector<uint8_t> flags(code[3], 1);
+
+ std::map<unsigned, int> spec_values_by_id;
+ for(const Constant &c: spec_constants)
+ {
+ auto i = spec_values.find(c.name);
+ if(i!=spec_values.end())
+ {
+ flags[c.id] = (i->second ? 5 : 3);
+ spec_values_by_id[c.constant_id] = i->second;
+ }
+ }
+
+ for(const EntryPoint &e: entry_points)
+ flags[e.id] = 0;
+ for(const Variable &v: variables)
+ flags[v.id] = 0;
+ for(const InstructionBlock &b: blocks)
+ flags[b.id] = 0;
+ for(const InstructionBlock *b: collect_visited_blocks(spec_values_by_id))
+ {
+ flags[b->id] = 1;
+ for(const Variable *v: b->accessed_variables)
+ flags[v->id] = 1;
+ }
+
+ std::vector<uint32_t> new_code;
+ new_code.reserve(code.size());
+
+ auto op = code.begin()+5;
+ new_code.insert(new_code.begin(), code.begin(), op);
+
+ bool skip_block = false;
+ while(op!=code.end())
+ {
+ unsigned word_count = *op>>16;
+ unsigned opcode = *op&0xFFFF;
+
+ bool copy = !skip_block;
+ if(skip_block)
+ {
+ skip_block = (opcode!=OP_BRANCH && opcode!=OP_BRANCH_CONDITIONAL && opcode!=OP_SWITCH &&
+ opcode!=OP_KILL && opcode!=OP_RETURN && opcode!=OP_RETURN_VALUE && opcode!=OP_UNREACHABLE);
+ }
+ else
+ {
+ if(opcode==OP_NAME)
+ copy = flags[*(op+1)];
+ else if(opcode==OP_ENTRY_POINT)
+ {
+ unsigned start = new_code.size();
+ new_code.push_back(opcode);
+ new_code.push_back(*(op+1));
+ unsigned func_id = *(op+2);
+ new_code.push_back(func_id);
+
+ unsigned i = 3;
+ while(i<word_count)
+ {
+ unsigned word = *(op+i++);
+ new_code.push_back(word);
+ // Strings are nul-terminated and nul-padded
+ if(!(word>>24))
+ break;
+ }
+
+ unsigned var_count = 0;
+ for(; i<word_count; ++i)
+ {
+ unsigned id = *(op+i);
+ if(flags[id])
+ {
+ ++var_count;
+ new_code.push_back(id);
+ }
+ }
+
+ if(var_count)
+ {
+ flags[func_id] = 1;
+ new_code[start] |= (new_code.size()-start)<<16;
+ }
+ else
+ new_code.resize(start);
+
+ copy = false;
+ }
+ else if(opcode==OP_EXECUTION_MODE)
+ copy = flags[*(op+1)];
+ else if(opcode==OP_SPEC_CONSTANT_TRUE || opcode==OP_SPEC_CONSTANT_FALSE)
+ {
+ unsigned id = *(op+2);
+ if(flags[id]&2)
+ {
+ new_code.push_back(0x30000 | (flags[id]&4 ? OP_CONSTANT_TRUE : OP_CONSTANT_FALSE));
+ new_code.push_back(*(op+1));
+ new_code.push_back(id);
+
+ copy = false;
+ }
+ }
+ else if(opcode==OP_VARIABLE)
+ copy = flags[*(op+2)];
+ else if(opcode==OP_DECORATE)
+ {
+ unsigned id = *(op+1);
+ copy = flags[id];
+ if(copy && *(op+2)==DECO_SPEC_ID)
+ copy = !(flags[id]&2);
+ }
+ else if(opcode==OP_LABEL)
+ {
+ copy = flags[*(op+1)];
+ skip_block = !copy;
+ }
+ else if(opcode==OP_SELECTION_MERGE)
+ {
+ unsigned next_opcode = *(op+word_count)&0xFFFF;
+ if(next_opcode==OP_BRANCH_CONDITIONAL)
+ {
+ unsigned true_id = *(op+word_count+2);
+ unsigned false_id = *(op+word_count+3);
+ if(!flags[true_id] || !flags[false_id])
+ {
+ new_code.push_back(0x20000 | OP_BRANCH);
+ new_code.push_back(flags[true_id] ? true_id : false_id);
+ copy = false;
+
+ /* Skip the branch instruction when it's encountered on the
+ next iteration */
+ skip_block = true;
+ }
+ }
+ }
+ else if(opcode==OP_PHI)
+ {
+ unsigned active_count = 0;
+ unsigned result_id = 0;
+ for(unsigned i=3; i<word_count; i+=2)
+ if(flags[*(op+i+1)])
+ {
+ ++active_count;
+ result_id = *(op+i);
+ }
+
+ if(active_count==1)
+ {
+ new_code.push_back(0x40000 | OP_COPY_OBJECT);
+ new_code.push_back(*(op+1));
+ new_code.push_back(*(op+2));
+ new_code.push_back(result_id);
+ copy = false;
+ }
+ }
+ }
+
+ if(copy)
+ {
+ for(unsigned i=0; i<word_count; ++i)
+ new_code.push_back(*(op+i));
+ }
+
+ op += word_count;
+ }
+
+ SpirVModule *spec_mod = new SpirVModule;
+ spec_mod->code = move(new_code);
+ spec_mod->reflect();
+ spec_mod->create();
+
+ return spec_mod;
+}
+
+vector<const SpirVModule::InstructionBlock *> SpirVModule::collect_visited_blocks(const map<unsigned, int> &spec_values) const
+{
+ vector<uint8_t> visited(blocks.size(), 4);
+ for(unsigned i=0; i<blocks.size(); ++i)
+ {
+ const InstructionBlock &b = blocks[i];
+
+ bool cond = true;
+ if(b.condition)
+ {
+ cond = b.condition->i_value;
+ auto j = spec_values.find(b.condition->constant_id);
+ if(j!=spec_values.end())
+ cond = j->second;
+ if(b.negate_condition)
+ cond = !cond;
+ }
+
+ visited[i] |= cond*2;
+ for(const InstructionBlock *s: b.successors)
+ visited[s-blocks.data()] &= 3;
+ }
+
+ for(unsigned i=0; i<blocks.size(); ++i)
+ if(visited[i]&4)
+ collect_visited_blocks(i, visited);
+
+ vector<const SpirVModule::InstructionBlock *> result;
+ for(unsigned i=0; i<blocks.size(); ++i)
+ if(visited[i]&1)
+ result.push_back(&blocks[i]);
+
+ return result;
+}
+
+void SpirVModule::collect_visited_blocks(unsigned i, vector<uint8_t> &visited) const
+{
+ visited[i] |= 1;
+ for(const InstructionBlock *s: blocks[i].successors)
+ {
+ unsigned j = s-blocks.data();
+ if((visited[j]&3)==2)
+ collect_visited_blocks(j, visited);
+ }
+}
+
+
+bool SpirVModule::Variable::operator==(const Variable &other) const
+{
+ if(storage!=UNIFORM_CONSTANT && storage!=UNIFORM)
+ return false;
+ if(storage!=other.storage || type!=other.type || struct_type!=other.struct_type)
+ return false;
+ if(location!=other.location || descriptor_set!=other.descriptor_set || binding!=other.binding)
+ return false;
+ return true;
+}
+
+
+uint32_t SpirVModule::Reflection::get_opcode(uint32_t op)
+{
+ return op&0xFFFF;
+}
+
+SpirVModule::Reflection::CodeIterator SpirVModule::Reflection::get_op_end(const CodeIterator &op)
+{
+ return op+(*op>>16);
+}
+
+string SpirVModule::Reflection::read_string(CodeIterator &op, const CodeIterator &op_end)
+{
+ string result;
+ for(; op!=op_end; ++op)
+ {
+ unsigned word = *op;
+ for(unsigned i=0; i<4; ++i)
+ {
+ char c = word&0xFF;
+ if(!c)
+ {
+ ++op;
+ return result;
+ }
+ result += c;
+ word >>= 8;
+ }
+ }
+
+ throw invalid_module("Unterminated SPIR-V string literal");
+}
+
+void SpirVModule::Reflection::reflect_code(const vector<uint32_t> &code)
+{
+ for(CodeIterator op=code.begin()+5; op!=code.end(); )
+ {
+ unsigned word_count = *op>>16;
+ if(word_count>static_cast<unsigned>(code.end()-op))
+ throw invalid_module("Truncated SPIR-V instruction");
+
+ switch(get_opcode(*op))
+ {
+ case OP_NAME: reflect_name(op); break;
+ case OP_MEMBER_NAME: reflect_member_name(op); break;
+ case OP_ENTRY_POINT: reflect_entry_point(op); break;
+ case OP_EXECUTION_MODE: reflect_execution_mode(op); break;
+ case OP_TYPE_VOID: reflect_void_type(op); break;
+ case OP_TYPE_BOOL: reflect_bool_type(op); break;
+ case OP_TYPE_INT: reflect_int_type(op); break;
+ case OP_TYPE_FLOAT: reflect_float_type(op); break;
+ case OP_TYPE_VECTOR: reflect_vector_type(op); break;
+ case OP_TYPE_MATRIX: reflect_matrix_type(op); break;
+ case OP_TYPE_IMAGE: reflect_image_type(op); break;
+ case OP_TYPE_SAMPLED_IMAGE: reflect_sampled_image_type(op); break;
+ case OP_TYPE_ARRAY: reflect_array_type(op); break;
+ case OP_TYPE_STRUCT: reflect_struct_type(op); break;
+ case OP_TYPE_POINTER: reflect_pointer_type(op); break;
+ case OP_CONSTANT_TRUE:
+ case OP_CONSTANT_FALSE:
+ case OP_CONSTANT:
+ case OP_SPEC_CONSTANT_TRUE:
+ case OP_SPEC_CONSTANT_FALSE:
+ case OP_SPEC_CONSTANT: reflect_constant(op); break;
+ case OP_VARIABLE: reflect_variable(op); break;
+ case OP_LOAD:
+ case OP_STORE: reflect_access(op); break;
+ case OP_ACCESS_CHAIN: reflect_access_chain(op); break;
+ case OP_DECORATE: reflect_decorate(op); break;
+ case OP_MEMBER_DECORATE: reflect_member_decorate(op); break;
+ case OP_LABEL: reflect_label(op); break;
+ case OP_BRANCH: reflect_branch(op); break;
+ case OP_BRANCH_CONDITIONAL: reflect_branch_conditional(op); break;
+ }
+
+ op += word_count;
+ }
+}
+
+void SpirVModule::Reflection::reflect_name(CodeIterator op)
+{
+ CodeIterator op_end = get_op_end(op);
+ string &name = names[*(op+1)];
+ op += 2;
+ name = read_string(op, op_end);
+}
+
+void SpirVModule::Reflection::reflect_member_name(CodeIterator op)
+{
+ CodeIterator op_end = get_op_end(op);
+ Structure &strct = structs[*(op+1)];
+ unsigned index = *(op+2);
+ if(index>=strct.members.size())
+ strct.members.resize(index+1);
+ op += 3;
+ strct.members[index].name = read_string(op, op_end);
+}
+
+void SpirVModule::Reflection::reflect_entry_point(CodeIterator op)
+{
+ CodeIterator op_end = get_op_end(op);
+ unsigned id = *(op+2);
+ EntryPoint &entry = entry_points[id];
+ entry.id = id;
+ entry.stage = static_cast<Stage>(*(op+1)); // Execution model in SPIR-V spec
+ op += 3;
+ entry.name = read_string(op, op_end);
+
+ entry.globals.reserve(op_end-op);
+ for(; op!=op_end; ++op)
+ entry.globals.push_back(&variables[*op]);
+}
+
+void SpirVModule::Reflection::reflect_execution_mode(CodeIterator op)
+{
+ EntryPoint &entry = entry_points[*(op+1)];
+ unsigned mode = *(op+2);
+ if(mode==EXEC_LOCAL_SIZE)
+ {
+ entry.compute_local_size.x = *(op+3);
+ entry.compute_local_size.y = *(op+4);
+ entry.compute_local_size.z = *(op+5);
+ }
+}
+
+void SpirVModule::Reflection::reflect_void_type(CodeIterator op)
+{
+ types[*(op+1)].type = VOID;
+}
+
+void SpirVModule::Reflection::reflect_bool_type(CodeIterator op)
+{
+ types[*(op+1)].type = BOOL;
+}
+
+void SpirVModule::Reflection::reflect_int_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ unsigned size = *(op+2);
+ bool sign = *(op+3);
+ type.type = static_cast<DataType>(size/8 | sign*0x100);
+}
+
+void SpirVModule::Reflection::reflect_float_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ unsigned size = *(op+2);
+ type.type = static_cast<DataType>(size/8 | 0x300);
+}
+
+void SpirVModule::Reflection::reflect_vector_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ DataType component = types[*(op+2)].type;
+ unsigned count = *(op+3);
+ type.type = static_cast<DataType>(((count-1)<<12) | (component&0xF00) | ((component&0xFF)*count));
+}
+
+void SpirVModule::Reflection::reflect_matrix_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ DataType column = types[*(op+2)].type;
+ unsigned count = *(op+3);
+ type.type = static_cast<DataType>(((count-1)<<14) | (column&0x3F00) | ((column&0xFF)*count));
+}
+
+void SpirVModule::Reflection::reflect_image_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ DataType sample_type = types[*(op+2)].type;
+ unsigned dimensions = *(op+3);
+ bool depth = *(op+4)==1;
+ bool array = *(op+5);
+ bool sampled = *(op+7)==1;
+ type.type = static_cast<DataType>((depth*0x200000) | (sampled*0x100000) | (array*0x80000) |
+ ((dimensions+1)<<16) | sample_type);
+}
+
+void SpirVModule::Reflection::reflect_sampled_image_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ DataType image = types[*(op+2)].type;
+ type.type = static_cast<DataType>(image | 0x100000);
+}
+
+void SpirVModule::Reflection::reflect_array_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ const TypeInfo &elem = types[*(op+2)];
+ type.type = elem.type;
+ type.struct_type = elem.struct_type;
+
+ const Constant &size = constants[*(op+3)];
+ if(size.type==INT || size.type==UNSIGNED_INT)
+ type.array_size = size.i_value;
+}
+
+void SpirVModule::Reflection::reflect_struct_type(CodeIterator op)
+{
+ CodeIterator op_end = get_op_end(op);
+ unsigned id = *(op+1);
+ Structure &strct = structs[id];
+ strct.name = names[id];
+ strct.id = id;
+ types[id].struct_type = &strct;
+ op += 2;
+
+ strct.members.resize(op_end-op);
+ auto mem = strct.members.begin();
+ for(; op!=op_end; ++op, ++mem)
+ {
+ TypeInfo &type = types[*op];
+ mem->type = type.type;
+ mem->struct_type = type.struct_type;
+ mem->array_size = type.array_size;
+ mem->array_stride = type.array_stride;
+ }
+}
+
+void SpirVModule::Reflection::reflect_pointer_type(CodeIterator op)
+{
+ TypeInfo &type = types[*(op+1)];
+ type = types[*(op+3)];
+ type.storage = static_cast<StorageClass>(*(op+2));
+}
+
+void SpirVModule::Reflection::reflect_constant(CodeIterator op)
+{
+ unsigned opcode = get_opcode(*op);
+ unsigned id = *(op+2);
+ Constant &cnst = constants[id];
+ cnst.name = names[id];
+ cnst.id = id;
+ cnst.type = types[*(op+1)].type;
+ if(opcode==OP_CONSTANT_TRUE || opcode==OP_SPEC_CONSTANT_TRUE)
+ cnst.i_value = true;
+ else if(opcode==OP_CONSTANT_FALSE || opcode==OP_SPEC_CONSTANT_FALSE)
+ cnst.i_value = false;
+ else if(cnst.type==INT || cnst.type==UNSIGNED_INT)
+ cnst.i_value = *(op+3);
+ else if(cnst.type==FLOAT)
+ cnst.f_value = *reinterpret_cast<const float *>(&*(op+3));
+}
+
+void SpirVModule::Reflection::reflect_variable(CodeIterator op)
+{
+ unsigned id = *(op+2);
+ Variable &var = variables[id];
+ var.name = names[id];
+ var.id = id;
+ const TypeInfo &type = types[*(op+1)];
+ var.storage = type.storage;
+ var.type = type.type;
+ var.struct_type = type.struct_type;
+ var.array_size = type.array_size;
+}
+
+void SpirVModule::Reflection::reflect_access(CodeIterator op)
+{
+ if(current_block)
+ {
+ unsigned id = (get_opcode(*op)==OP_LOAD ? *(op+3) : *(op+1));
+ auto i = access_chain_bases.find(id);
+ if(i!=access_chain_bases.end())
+ id = i->second;
+ Variable &var = variables[id];
+ auto j = find(current_block->accessed_variables, &var);
+ if(j==current_block->accessed_variables.end())
+ current_block->accessed_variables.push_back(&var);
+ }
+}
+
+void SpirVModule::Reflection::reflect_access_chain(CodeIterator op)
+{
+ access_chain_bases[*(op+2)] = *(op+3);
+}
+
+void SpirVModule::Reflection::reflect_decorate(CodeIterator op)
+{
+ unsigned id = *(op+1);
+ unsigned decoration = *(op+2);
+ op += 3;
+
+ switch(decoration)
+ {
+ case DECO_SPEC_ID:
+ constants[id].constant_id = *op;
+ break;
+ case DECO_ARRAY_STRIDE:
+ types[id].array_stride = *op;
+ break;
+ case DECO_BUILTIN:
+ variables[id].builtin = static_cast<BuiltinSemantic>(*op);
+ break;
+ case DECO_LOCATION:
+ variables[id].location = *op;
+ break;
+ case DECO_BINDING:
+ variables[id].binding = *op;
+ break;
+ case DECO_DESCRIPTOR_SET:
+ variables[id].descriptor_set = *op;
+ break;
+ }
+}
+
+void SpirVModule::Reflection::reflect_member_decorate(CodeIterator op)
+{
+ Structure &strct = structs[*(op+1)];
+ unsigned index = *(op+2);
+ if(index>=strct.members.size())
+ strct.members.resize(index+1);
+ unsigned decoration = *(op+3);
+ op += 4;
+
+ StructMember &member = strct.members[index];
+ switch(decoration)
+ {
+ case DECO_MATRIX_STRIDE:
+ member.matrix_stride = *op;
+ break;
+ case DECO_BUILTIN:
+ member.builtin = static_cast<BuiltinSemantic>(*op);
+ break;
+ case DECO_OFFSET:
+ member.offset = *op;
+ break;
+ }
+}
+
+void SpirVModule::Reflection::reflect_label(CodeIterator op)
+{
+ unsigned id = *(op+1);
+ current_block = &blocks[id];
+ current_block->id = id;
+}
+
+void SpirVModule::Reflection::reflect_branch(CodeIterator op)
+{
+ InstructionBlock &block = blocks[*(op+1)];
+ block.condition = &true_condition;
+ current_block->successors.push_back(&block);
+}
+
+void SpirVModule::Reflection::reflect_branch_conditional(CodeIterator op)
+{
+ InstructionBlock &true_block = blocks[*(op+2)];
+ InstructionBlock &false_block = blocks[*(op+3)];
+
+ auto i = constants.find(*(op+1));
+ if(i!=constants.end() && i->second.constant_id)
+ {
+ if(!true_block.condition)
+ true_block.condition = &i->second;
+ if(!false_block.condition)
+ {
+ false_block.condition = &i->second;
+ false_block.negate_condition = true;
+ }
+ }
+
+ current_block->successors.push_back(&true_block);
+ current_block->successors.push_back(&false_block);
+}
+
} // namespace GL
} // namespace Msp
projects / libs / gl.git / blobdiff