SPIRV-Tools/source/validate_primitives.cpp
David Neto 8135dd6375 More validation on primitive instructions
- Test validation success for OpEmitVertex OpEndPrimitive
- Test missing capabilities for primitive instructions
- Primitive instructions require Geometry execution model
2017-12-19 13:26:07 -05:00

74 lines
2.2 KiB
C++

// Copyright (c) 2017 LunarG Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Validates correctness of primitive SPIR-V instructions.
#include "validate.h"
#include <string>
#include "diagnostic.h"
#include "opcode.h"
#include "val/instruction.h"
#include "val/validation_state.h"
namespace libspirv {
// Validates correctness of primitive instructions.
spv_result_t PrimitivesPass(ValidationState_t& _,
const spv_parsed_instruction_t* inst) {
const SpvOp opcode = static_cast<SpvOp>(inst->opcode);
switch (opcode) {
case SpvOpEmitVertex:
case SpvOpEndPrimitive:
case SpvOpEmitStreamVertex:
case SpvOpEndStreamPrimitive:
_.current_function().RegisterExecutionModelLimitation(
SpvExecutionModelGeometry,
std::string(spvOpcodeString(opcode)) +
" instructions require Geometry execution model");
break;
default:
break;
}
switch (opcode) {
case SpvOpEmitStreamVertex:
case SpvOpEndStreamPrimitive: {
const uint32_t stream_id = inst->words[1];
const uint32_t stream_type = _.GetTypeId(stream_id);
if (!_.IsIntScalarType(stream_type)) {
return _.diag(SPV_ERROR_INVALID_DATA)
<< spvOpcodeString(opcode)
<< ": expected Stream to be int scalar";
}
const SpvOp stream_opcode = _.GetIdOpcode(stream_id);
if (!spvOpcodeIsConstant(stream_opcode)) {
return _.diag(SPV_ERROR_INVALID_DATA)
<< spvOpcodeString(opcode)
<< ": expected Stream to be constant instruction";
}
}
default:
break;
}
return SPV_SUCCESS;
}
} // namespace libspirv