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/* Copyright (c) 2020-2022 The Khronos Group Inc.
* Copyright (c) 2020-2022 Valve Corporation
* Copyright (c) 2020-2022 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.
*
* Author: Tony Barbour <tony@lunarg.com>
*/
#include "chassis.h"
#include "layer_chassis_dispatch.h"
#include "state_tracker.h"
#include "descriptor_sets.h"
#include "shader_validation.h"
#include "spirv-tools/libspirv.h"
#include "spirv-tools/optimizer.hpp"
#include "spirv-tools/instrument.hpp"
#include <spirv/unified1/spirv.hpp>
#include <algorithm>
#include <regex>
#define VMA_IMPLEMENTATION
// This define indicates that we will supply Vulkan function pointers at initialization
#define VMA_STATIC_VULKAN_FUNCTIONS 0
#include "vk_mem_alloc.h"
class UtilDescriptorSetManager {
public:
UtilDescriptorSetManager(VkDevice device, uint32_t numBindingsInSet);
~UtilDescriptorSetManager();
VkResult GetDescriptorSet(VkDescriptorPool *desc_pool, VkDescriptorSetLayout ds_layout, VkDescriptorSet *desc_sets);
VkResult GetDescriptorSets(uint32_t count, VkDescriptorPool *pool, VkDescriptorSetLayout ds_layout,
std::vector<VkDescriptorSet> *desc_sets);
void PutBackDescriptorSet(VkDescriptorPool desc_pool, VkDescriptorSet desc_set);
private:
static const uint32_t kItemsPerChunk = 512;
struct PoolTracker {
uint32_t size;
uint32_t used;
};
VkDevice device;
uint32_t numBindingsInSet;
layer_data::unordered_map<VkDescriptorPool, struct PoolTracker> desc_pool_map_;
};
// Implementation for Descriptor Set Manager class
UtilDescriptorSetManager::UtilDescriptorSetManager(VkDevice device, uint32_t numBindingsInSet)
: device(device), numBindingsInSet(numBindingsInSet) {}
UtilDescriptorSetManager::~UtilDescriptorSetManager() {
for (auto &pool : desc_pool_map_) {
DispatchDestroyDescriptorPool(device, pool.first, NULL);
}
desc_pool_map_.clear();
}
VkResult UtilDescriptorSetManager::GetDescriptorSet(VkDescriptorPool *desc_pool, VkDescriptorSetLayout ds_layout,
VkDescriptorSet *desc_set) {
std::vector<VkDescriptorSet> desc_sets;
VkResult result = GetDescriptorSets(1, desc_pool, ds_layout, &desc_sets);
if (result == VK_SUCCESS) {
*desc_set = desc_sets[0];
}
return result;
}
VkResult UtilDescriptorSetManager::GetDescriptorSets(uint32_t count, VkDescriptorPool *pool, VkDescriptorSetLayout ds_layout,
std::vector<VkDescriptorSet> *desc_sets) {
const uint32_t default_pool_size = kItemsPerChunk;
VkResult result = VK_SUCCESS;
VkDescriptorPool pool_to_use = VK_NULL_HANDLE;
if (0 == count) {
return result;
}
desc_sets->clear();
desc_sets->resize(count);
for (auto &pool : desc_pool_map_) {
if (pool.second.used + count < pool.second.size) {
pool_to_use = pool.first;
break;
}
}
if (VK_NULL_HANDLE == pool_to_use) {
uint32_t pool_count = default_pool_size;
if (count > default_pool_size) {
pool_count = count;
}
const VkDescriptorPoolSize size_counts = {
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
pool_count * numBindingsInSet,
};
auto desc_pool_info = LvlInitStruct<VkDescriptorPoolCreateInfo>();
desc_pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
desc_pool_info.maxSets = pool_count;
desc_pool_info.poolSizeCount = 1;
desc_pool_info.pPoolSizes = &size_counts;
result = DispatchCreateDescriptorPool(device, &desc_pool_info, NULL, &pool_to_use);
assert(result == VK_SUCCESS);
if (result != VK_SUCCESS) {
return result;
}
desc_pool_map_[pool_to_use].size = desc_pool_info.maxSets;
desc_pool_map_[pool_to_use].used = 0;
}
std::vector<VkDescriptorSetLayout> desc_layouts(count, ds_layout);
VkDescriptorSetAllocateInfo alloc_info = {VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO, NULL, pool_to_use, count,
desc_layouts.data()};
result = DispatchAllocateDescriptorSets(device, &alloc_info, desc_sets->data());
assert(result == VK_SUCCESS);
if (result != VK_SUCCESS) {
return result;
}
*pool = pool_to_use;
desc_pool_map_[pool_to_use].used += count;
return result;
}
void UtilDescriptorSetManager::PutBackDescriptorSet(VkDescriptorPool desc_pool, VkDescriptorSet desc_set) {
auto iter = desc_pool_map_.find(desc_pool);
if (iter != desc_pool_map_.end()) {
VkResult result = DispatchFreeDescriptorSets(device, desc_pool, 1, &desc_set);
assert(result == VK_SUCCESS);
if (result != VK_SUCCESS) {
return;
}
desc_pool_map_[desc_pool].used--;
if (0 == desc_pool_map_[desc_pool].used) {
DispatchDestroyDescriptorPool(device, desc_pool, NULL);
desc_pool_map_.erase(desc_pool);
}
}
return;
}
// Trampolines to make VMA call Dispatch for Vulkan calls
static VKAPI_ATTR void VKAPI_CALL gpuVkGetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice,
VkPhysicalDeviceProperties *pProperties) {
DispatchGetPhysicalDeviceProperties(physicalDevice, pProperties);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkGetPhysicalDeviceMemoryProperties(VkPhysicalDevice physicalDevice,
VkPhysicalDeviceMemoryProperties *pMemoryProperties) {
DispatchGetPhysicalDeviceMemoryProperties(physicalDevice, pMemoryProperties);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkAllocateMemory(VkDevice device, const VkMemoryAllocateInfo *pAllocateInfo,
const VkAllocationCallbacks *pAllocator, VkDeviceMemory *pMemory) {
return DispatchAllocateMemory(device, pAllocateInfo, pAllocator, pMemory);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkFreeMemory(VkDevice device, VkDeviceMemory memory, const VkAllocationCallbacks *pAllocator) {
DispatchFreeMemory(device, memory, pAllocator);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkMapMemory(VkDevice device, VkDeviceMemory memory, VkDeviceSize offset, VkDeviceSize size,
VkMemoryMapFlags flags, void **ppData) {
return DispatchMapMemory(device, memory, offset, size, flags, ppData);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkUnmapMemory(VkDevice device, VkDeviceMemory memory) { DispatchUnmapMemory(device, memory); }
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkFlushMappedMemoryRanges(VkDevice device, uint32_t memoryRangeCount,
const VkMappedMemoryRange *pMemoryRanges) {
return DispatchFlushMappedMemoryRanges(device, memoryRangeCount, pMemoryRanges);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkInvalidateMappedMemoryRanges(VkDevice device, uint32_t memoryRangeCount,
const VkMappedMemoryRange *pMemoryRanges) {
return DispatchInvalidateMappedMemoryRanges(device, memoryRangeCount, pMemoryRanges);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkBindBufferMemory(VkDevice device, VkBuffer buffer, VkDeviceMemory memory,
VkDeviceSize memoryOffset) {
return DispatchBindBufferMemory(device, buffer, memory, memoryOffset);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkBindImageMemory(VkDevice device, VkImage image, VkDeviceMemory memory,
VkDeviceSize memoryOffset) {
return DispatchBindImageMemory(device, image, memory, memoryOffset);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkGetBufferMemoryRequirements(VkDevice device, VkBuffer buffer,
VkMemoryRequirements *pMemoryRequirements) {
DispatchGetBufferMemoryRequirements(device, buffer, pMemoryRequirements);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkGetImageMemoryRequirements(VkDevice device, VkImage image,
VkMemoryRequirements *pMemoryRequirements) {
DispatchGetImageMemoryRequirements(device, image, pMemoryRequirements);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkCreateBuffer(VkDevice device, const VkBufferCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator, VkBuffer *pBuffer) {
return DispatchCreateBuffer(device, pCreateInfo, pAllocator, pBuffer);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkDestroyBuffer(VkDevice device, VkBuffer buffer, const VkAllocationCallbacks *pAllocator) {
return DispatchDestroyBuffer(device, buffer, pAllocator);
}
static VKAPI_ATTR VkResult VKAPI_CALL gpuVkCreateImage(VkDevice device, const VkImageCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator, VkImage *pImage) {
return DispatchCreateImage(device, pCreateInfo, pAllocator, pImage);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkDestroyImage(VkDevice device, VkImage image, const VkAllocationCallbacks *pAllocator) {
DispatchDestroyImage(device, image, pAllocator);
}
static VKAPI_ATTR void VKAPI_CALL gpuVkCmdCopyBuffer(VkCommandBuffer commandBuffer, VkBuffer srcBuffer, VkBuffer dstBuffer,
uint32_t regionCount, const VkBufferCopy *pRegions) {
DispatchCmdCopyBuffer(commandBuffer, srcBuffer, dstBuffer, regionCount, pRegions);
}
VkResult UtilInitializeVma(VkPhysicalDevice physical_device, VkDevice device, VmaAllocator *pAllocator) {
VmaVulkanFunctions functions;
VmaAllocatorCreateInfo allocator_info = {};
allocator_info.device = device;
allocator_info.physicalDevice = physical_device;
functions.vkGetPhysicalDeviceProperties = static_cast<PFN_vkGetPhysicalDeviceProperties>(gpuVkGetPhysicalDeviceProperties);
functions.vkGetPhysicalDeviceMemoryProperties =
static_cast<PFN_vkGetPhysicalDeviceMemoryProperties>(gpuVkGetPhysicalDeviceMemoryProperties);
functions.vkAllocateMemory = static_cast<PFN_vkAllocateMemory>(gpuVkAllocateMemory);
functions.vkFreeMemory = static_cast<PFN_vkFreeMemory>(gpuVkFreeMemory);
functions.vkMapMemory = static_cast<PFN_vkMapMemory>(gpuVkMapMemory);
functions.vkUnmapMemory = static_cast<PFN_vkUnmapMemory>(gpuVkUnmapMemory);
functions.vkFlushMappedMemoryRanges = static_cast<PFN_vkFlushMappedMemoryRanges>(gpuVkFlushMappedMemoryRanges);
functions.vkInvalidateMappedMemoryRanges = static_cast<PFN_vkInvalidateMappedMemoryRanges>(gpuVkInvalidateMappedMemoryRanges);
functions.vkBindBufferMemory = static_cast<PFN_vkBindBufferMemory>(gpuVkBindBufferMemory);
functions.vkBindImageMemory = static_cast<PFN_vkBindImageMemory>(gpuVkBindImageMemory);
functions.vkGetBufferMemoryRequirements = static_cast<PFN_vkGetBufferMemoryRequirements>(gpuVkGetBufferMemoryRequirements);
functions.vkGetImageMemoryRequirements = static_cast<PFN_vkGetImageMemoryRequirements>(gpuVkGetImageMemoryRequirements);
functions.vkCreateBuffer = static_cast<PFN_vkCreateBuffer>(gpuVkCreateBuffer);
functions.vkDestroyBuffer = static_cast<PFN_vkDestroyBuffer>(gpuVkDestroyBuffer);
functions.vkCreateImage = static_cast<PFN_vkCreateImage>(gpuVkCreateImage);
functions.vkDestroyImage = static_cast<PFN_vkDestroyImage>(gpuVkDestroyImage);
functions.vkCmdCopyBuffer = static_cast<PFN_vkCmdCopyBuffer>(gpuVkCmdCopyBuffer);
allocator_info.pVulkanFunctions = &functions;
return vmaCreateAllocator(&allocator_info, pAllocator);
}
void UtilPreCallRecordCreateDevice(VkPhysicalDevice gpu, safe_VkDeviceCreateInfo *modified_create_info,
VkPhysicalDeviceFeatures supported_features, VkPhysicalDeviceFeatures desired_features) {
VkPhysicalDeviceFeatures *features = nullptr;
if (modified_create_info->pEnabledFeatures) {
// If pEnabledFeatures, VkPhysicalDeviceFeatures2 in pNext chain is not allowed
features = const_cast<VkPhysicalDeviceFeatures *>(modified_create_info->pEnabledFeatures);
} else {
VkPhysicalDeviceFeatures2 *features2 = nullptr;
features2 = const_cast<VkPhysicalDeviceFeatures2 *>(LvlFindInChain<VkPhysicalDeviceFeatures2>(modified_create_info->pNext));
if (features2) features = &features2->features;
}
VkPhysicalDeviceFeatures new_features = {};
VkBool32 *desired = reinterpret_cast<VkBool32 *>(&desired_features);
VkBool32 *feature_ptr;
if (features) {
feature_ptr = reinterpret_cast<VkBool32 *>(features);
} else {
feature_ptr = reinterpret_cast<VkBool32 *>(&new_features);
}
VkBool32 *supported = reinterpret_cast<VkBool32 *>(&supported_features);
for (size_t i = 0; i < sizeof(VkPhysicalDeviceFeatures); i += (sizeof(VkBool32))) {
if (*supported && *desired) {
*feature_ptr = true;
}
supported++;
desired++;
feature_ptr++;
}
if (!features) {
delete modified_create_info->pEnabledFeatures;
modified_create_info->pEnabledFeatures = new VkPhysicalDeviceFeatures(new_features);
}
}
// Generate the stage-specific part of the message.
void UtilGenerateStageMessage(const uint32_t *debug_record, std::string &msg) {
using namespace spvtools;
std::ostringstream strm;
switch (debug_record[kInstCommonOutStageIdx]) {
case spv::ExecutionModelVertex: {
strm << "Stage = Vertex. Vertex Index = " << debug_record[kInstVertOutVertexIndex]
<< " Instance Index = " << debug_record[kInstVertOutInstanceIndex] << ". ";
} break;
case spv::ExecutionModelTessellationControl: {
strm << "Stage = Tessellation Control. Invocation ID = " << debug_record[kInstTessCtlOutInvocationId]
<< ", Primitive ID = " << debug_record[kInstTessCtlOutPrimitiveId];
} break;
case spv::ExecutionModelTessellationEvaluation: {
strm << "Stage = Tessellation Eval. Primitive ID = " << debug_record[kInstTessEvalOutPrimitiveId]
<< ", TessCoord (u, v) = (" << debug_record[kInstTessEvalOutTessCoordU] << ", "
<< debug_record[kInstTessEvalOutTessCoordV] << "). ";
} break;
case spv::ExecutionModelGeometry: {
strm << "Stage = Geometry. Primitive ID = " << debug_record[kInstGeomOutPrimitiveId]
<< " Invocation ID = " << debug_record[kInstGeomOutInvocationId] << ". ";
} break;
case spv::ExecutionModelFragment: {
strm << "Stage = Fragment. Fragment coord (x,y) = ("
<< *reinterpret_cast<const float *>(&debug_record[kInstFragOutFragCoordX]) << ", "
<< *reinterpret_cast<const float *>(&debug_record[kInstFragOutFragCoordY]) << "). ";
} break;
case spv::ExecutionModelGLCompute: {
strm << "Stage = Compute. Global invocation ID (x, y, z) = (" << debug_record[kInstCompOutGlobalInvocationIdX] << ", "
<< debug_record[kInstCompOutGlobalInvocationIdY] << ", " << debug_record[kInstCompOutGlobalInvocationIdZ] << " )";
} break;
case spv::ExecutionModelRayGenerationNV: {
strm << "Stage = Ray Generation. Global Launch ID (x,y,z) = (" << debug_record[kInstRayTracingOutLaunchIdX] << ", "
<< debug_record[kInstRayTracingOutLaunchIdY] << ", " << debug_record[kInstRayTracingOutLaunchIdZ] << "). ";
} break;
case spv::ExecutionModelIntersectionNV: {
strm << "Stage = Intersection. Global Launch ID (x,y,z) = (" << debug_record[kInstRayTracingOutLaunchIdX] << ", "
<< debug_record[kInstRayTracingOutLaunchIdY] << ", " << debug_record[kInstRayTracingOutLaunchIdZ] << "). ";
} break;
case spv::ExecutionModelAnyHitNV: {
strm << "Stage = Any Hit. Global Launch ID (x,y,z) = (" << debug_record[kInstRayTracingOutLaunchIdX] << ", "
<< debug_record[kInstRayTracingOutLaunchIdY] << ", " << debug_record[kInstRayTracingOutLaunchIdZ] << "). ";
} break;
case spv::ExecutionModelClosestHitNV: {
strm << "Stage = Closest Hit. Global Launch ID (x,y,z) = (" << debug_record[kInstRayTracingOutLaunchIdX] << ", "
<< debug_record[kInstRayTracingOutLaunchIdY] << ", " << debug_record[kInstRayTracingOutLaunchIdZ] << "). ";
} break;
case spv::ExecutionModelMissNV: {
strm << "Stage = Miss. Global Launch ID (x,y,z) = (" << debug_record[kInstRayTracingOutLaunchIdX] << ", "
<< debug_record[kInstRayTracingOutLaunchIdY] << ", " << debug_record[kInstRayTracingOutLaunchIdZ] << "). ";
} break;
case spv::ExecutionModelCallableNV: {
strm << "Stage = Callable. Global Launch ID (x,y,z) = (" << debug_record[kInstRayTracingOutLaunchIdX] << ", "
<< debug_record[kInstRayTracingOutLaunchIdY] << ", " << debug_record[kInstRayTracingOutLaunchIdZ] << "). ";
} break;
case spv::ExecutionModelTaskNV: {
strm << "Stage = Task. Global invocation ID (x, y, z) = (" << debug_record[kInstTaskOutGlobalInvocationIdX] << ", "
<< debug_record[kInstTaskOutGlobalInvocationIdY] << ", " << debug_record[kInstTaskOutGlobalInvocationIdZ] << " )";
} break;
case spv::ExecutionModelMeshNV: {
strm << "Stage = Mesh.Global invocation ID (x, y, z) = (" << debug_record[kInstMeshOutGlobalInvocationIdX] << ", "
<< debug_record[kInstMeshOutGlobalInvocationIdY] << ", " << debug_record[kInstMeshOutGlobalInvocationIdZ] << " )";
} break;
default: {
strm << "Internal Error (unexpected stage = " << debug_record[kInstCommonOutStageIdx] << "). ";
assert(false);
} break;
}
msg = strm.str();
}
std::string LookupDebugUtilsName(const debug_report_data *report_data, const uint64_t object) {
auto object_label = report_data->DebugReportGetUtilsObjectName(object);
if (object_label != "") {
object_label = "(" + object_label + ")";
}
return object_label;
}
// Generate message from the common portion of the debug report record.
void UtilGenerateCommonMessage(const debug_report_data *report_data, const VkCommandBuffer commandBuffer,
const uint32_t *debug_record, const VkShaderModule shader_module_handle,
const VkPipeline pipeline_handle, const VkPipelineBindPoint pipeline_bind_point,
const uint32_t operation_index, std::string &msg) {
using namespace spvtools;
std::ostringstream strm;
if (shader_module_handle == VK_NULL_HANDLE) {
strm << std::hex << std::showbase << "Internal Error: Unable to locate information for shader used in command buffer "
<< LookupDebugUtilsName(report_data, HandleToUint64(commandBuffer)) << "(" << HandleToUint64(commandBuffer) << "). ";
assert(true);
} else {
strm << std::hex << std::showbase << "Command buffer " << LookupDebugUtilsName(report_data, HandleToUint64(commandBuffer))
<< "(" << HandleToUint64(commandBuffer) << "). ";
if (pipeline_bind_point == VK_PIPELINE_BIND_POINT_GRAPHICS) {
strm << "Draw ";
} else if (pipeline_bind_point == VK_PIPELINE_BIND_POINT_COMPUTE) {
strm << "Compute ";
} else if (pipeline_bind_point == VK_PIPELINE_BIND_POINT_RAY_TRACING_NV) {
strm << "Ray Trace ";
} else {
assert(false);
strm << "Unknown Pipeline Operation ";
}
strm << "Index " << operation_index << ". "
<< "Pipeline " << LookupDebugUtilsName(report_data, HandleToUint64(pipeline_handle)) << "("
<< HandleToUint64(pipeline_handle) << "). "
<< "Shader Module " << LookupDebugUtilsName(report_data, HandleToUint64(shader_module_handle)) << "("
<< HandleToUint64(shader_module_handle) << "). ";
}
strm << std::dec << std::noshowbase;
strm << "Shader Instruction Index = " << debug_record[kInstCommonOutInstructionIdx] << ". ";
msg = strm.str();
}
// Read the contents of the SPIR-V OpSource instruction and any following continuation instructions.
// Split the single string into a vector of strings, one for each line, for easier processing.
void ReadOpSource(const SHADER_MODULE_STATE &module_state, const uint32_t reported_file_id,
std::vector<std::string> &opsource_lines) {
for (auto insn : module_state) {
if ((insn.opcode() == spv::OpSource) && (insn.len() >= 5) && (insn.word(3) == reported_file_id)) {
std::istringstream in_stream;
std::string cur_line;
in_stream.str((char *)&insn.word(4));
while (std::getline(in_stream, cur_line)) {
opsource_lines.push_back(cur_line);
}
while ((++insn).opcode() == spv::OpSourceContinued) {
in_stream.str((char *)&insn.word(1));
while (std::getline(in_stream, cur_line)) {
opsource_lines.push_back(cur_line);
}
}
break;
}
}
}
// The task here is to search the OpSource content to find the #line directive with the
// line number that is closest to, but still prior to the reported error line number and
// still within the reported filename.
// From this known position in the OpSource content we can add the difference between
// the #line line number and the reported error line number to determine the location
// in the OpSource content of the reported error line.
//
// Considerations:
// - Look only at #line directives that specify the reported_filename since
// the reported error line number refers to its location in the reported filename.
// - If a #line directive does not have a filename, the file is the reported filename, or
// the filename found in a prior #line directive. (This is C-preprocessor behavior)
// - It is possible (e.g., inlining) for blocks of code to get shuffled out of their
// original order and the #line directives are used to keep the numbering correct. This
// is why we need to examine the entire contents of the source, instead of leaving early
// when finding a #line line number larger than the reported error line number.
//
// GCC 4.8 has a problem with std::regex that is fixed in GCC 4.9. Provide fallback code for 4.8
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#if defined(__GNUC__) && GCC_VERSION < 40900
bool GetLineAndFilename(const std::string string, uint32_t *linenumber, std::string &filename) {
// # line <linenumber> "<filename>" or
// #line <linenumber> "<filename>"
std::vector<std::string> tokens;
std::stringstream stream(string);
std::string temp;
uint32_t line_index = 0;
while (stream >> temp) tokens.push_back(temp);
auto size = tokens.size();
if (size > 1) {
if (tokens[0] == "#" && tokens[1] == "line") {
line_index = 2;
} else if (tokens[0] == "#line") {
line_index = 1;
}
}
if (0 == line_index) return false;
*linenumber = static_cast<uint32_t>(std::stoul(tokens[line_index]));
uint32_t filename_index = line_index + 1;
// Remove enclosing double quotes around filename
if (size > filename_index) filename = tokens[filename_index].substr(1, tokens[filename_index].size() - 2);
return true;
}
#else
bool GetLineAndFilename(const std::string string, uint32_t *linenumber, std::string &filename) {
static const std::regex line_regex( // matches #line directives
"^" // beginning of line
"\\s*" // optional whitespace
"#" // required text
"\\s*" // optional whitespace
"line" // required text
"\\s+" // required whitespace
"([0-9]+)" // required first capture - line number
"(\\s+)?" // optional second capture - whitespace
"(\".+\")?" // optional third capture - quoted filename with at least one char inside
".*"); // rest of line (needed when using std::regex_match since the entire line is tested)
std::smatch captures;
bool found_line = std::regex_match(string, captures, line_regex);
if (!found_line) return false;
// filename is optional and considered found only if the whitespace and the filename are captured
if (captures[2].matched && captures[3].matched) {
// Remove enclosing double quotes. The regex guarantees the quotes and at least one char.
filename = captures[3].str().substr(1, captures[3].str().size() - 2);
}
*linenumber = (uint32_t)std::stoul(captures[1]);
return true;
}
#endif // GCC_VERSION
// Extract the filename, line number, and column number from the correct OpLine and build a message string from it.
// Scan the source (from OpSource) to find the line of source at the reported line number and place it in another message string.
void UtilGenerateSourceMessages(const std::vector<uint32_t> &pgm, const uint32_t *debug_record, bool from_printf,
std::string &filename_msg, std::string &source_msg) {
using namespace spvtools;
std::ostringstream filename_stream;
std::ostringstream source_stream;
SHADER_MODULE_STATE shader(pgm);
// Find the OpLine just before the failing instruction indicated by the debug info.
// SPIR-V can only be iterated in the forward direction due to its opcode/length encoding.
uint32_t instruction_index = 0;
uint32_t reported_file_id = 0;
uint32_t reported_line_number = 0;
uint32_t reported_column_number = 0;
if (shader.words.size() > 0) {
for (const auto &insn : shader) {
if (insn.opcode() == spv::OpLine) {
reported_file_id = insn.word(1);
reported_line_number = insn.word(2);
reported_column_number = insn.word(3);
}
if (instruction_index == debug_record[kInstCommonOutInstructionIdx]) {
break;
}
instruction_index++;
}
}
// Create message with file information obtained from the OpString pointed to by the discovered OpLine.
std::string reported_filename;
if (reported_file_id == 0) {
filename_stream
<< "Unable to find SPIR-V OpLine for source information. Build shader with debug info to get source information.";
} else {
bool found_opstring = false;
std::string prefix;
if (from_printf) {
prefix = "Debug shader printf message generated ";
} else {
prefix = "Shader validation error occurred ";
}
for (const auto &insn : shader) {
if ((insn.opcode() == spv::OpString) && (insn.len() >= 3) && (insn.word(1) == reported_file_id)) {
found_opstring = true;
reported_filename = (char *)&insn.word(2);
if (reported_filename.empty()) {
filename_stream << prefix << "at line " << reported_line_number;
} else {
filename_stream << prefix << "in file " << reported_filename << " at line " << reported_line_number;
}
if (reported_column_number > 0) {
filename_stream << ", column " << reported_column_number;
}
filename_stream << ".";
break;
}
}
if (!found_opstring) {
filename_stream << "Unable to find SPIR-V OpString for file id " << reported_file_id << " from OpLine instruction."
<< std::endl;
filename_stream << "File ID = " << reported_file_id << ", Line Number = " << reported_line_number
<< ", Column = " << reported_column_number << std::endl;
}
}
filename_msg = filename_stream.str();
// Create message to display source code line containing error.
if ((reported_file_id != 0)) {
// Read the source code and split it up into separate lines.
std::vector<std::string> opsource_lines;
ReadOpSource(shader, reported_file_id, opsource_lines);
// Find the line in the OpSource content that corresponds to the reported error file and line.
if (!opsource_lines.empty()) {
uint32_t saved_line_number = 0;
std::string current_filename = reported_filename; // current "preprocessor" filename state.
std::vector<std::string>::size_type saved_opsource_offset = 0;
bool found_best_line = false;
for (auto it = opsource_lines.begin(); it != opsource_lines.end(); ++it) {
uint32_t parsed_line_number;
std::string parsed_filename;
bool found_line = GetLineAndFilename(*it, &parsed_line_number, parsed_filename);
if (!found_line) continue;
bool found_filename = parsed_filename.size() > 0;
if (found_filename) {
current_filename = parsed_filename;
}
if ((!found_filename) || (current_filename == reported_filename)) {
// Update the candidate best line directive, if the current one is prior and closer to the reported line
if (reported_line_number >= parsed_line_number) {
if (!found_best_line ||
(reported_line_number - parsed_line_number <= reported_line_number - saved_line_number)) {
saved_line_number = parsed_line_number;
saved_opsource_offset = std::distance(opsource_lines.begin(), it);
found_best_line = true;
}
}
}
}
if (found_best_line) {
assert(reported_line_number >= saved_line_number);
std::vector<std::string>::size_type opsource_index =
(reported_line_number - saved_line_number) + 1 + saved_opsource_offset;
if (opsource_index < opsource_lines.size()) {
source_stream << "\n" << reported_line_number << ": " << opsource_lines[opsource_index].c_str();
} else {
source_stream << "Internal error: calculated source line of " << opsource_index << " for source size of "
<< opsource_lines.size() << " lines.";
}
} else {
source_stream << "Unable to find suitable #line directive in SPIR-V OpSource.";
}
} else {
source_stream << "Unable to find SPIR-V OpSource.";
}
}
source_msg = source_stream.str();
}