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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include "common/assert.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/tracer/recorder.h"
namespace CiTrace {
Recorder::Recorder(const InitialState& initial_state) : initial_state(initial_state) {}
void Recorder::Finish(const std::string& filename) {
// Setup CiTrace header
CTHeader header;
std::memcpy(header.magic, CTHeader::ExpectedMagicWord(), 4);
header.version = CTHeader::ExpectedVersion();
header.header_size = sizeof(CTHeader);
// Calculate file offsets
auto& initial = header.initial_state_offsets;
initial.gpu_registers_size = static_cast<u32>(initial_state.gpu_registers.size());
initial.lcd_registers_size = static_cast<u32>(initial_state.lcd_registers.size());
initial.pica_registers_size = static_cast<u32>(initial_state.pica_registers.size());
initial.default_attributes_size = static_cast<u32>(initial_state.default_attributes.size());
initial.vs_program_binary_size = static_cast<u32>(initial_state.vs_program_binary.size());
initial.vs_swizzle_data_size = static_cast<u32>(initial_state.vs_swizzle_data.size());
initial.vs_float_uniforms_size = static_cast<u32>(initial_state.vs_float_uniforms.size());
initial.gs_program_binary_size = static_cast<u32>(initial_state.gs_program_binary.size());
initial.gs_swizzle_data_size = static_cast<u32>(initial_state.gs_swizzle_data.size());
initial.gs_float_uniforms_size = static_cast<u32>(initial_state.gs_float_uniforms.size());
header.stream_size = static_cast<u32>(stream.size());
initial.gpu_registers = sizeof(header);
initial.lcd_registers = initial.gpu_registers + initial.gpu_registers_size * sizeof(u32);
initial.pica_registers = initial.lcd_registers + initial.lcd_registers_size * sizeof(u32);
;
initial.default_attributes = initial.pica_registers + initial.pica_registers_size * sizeof(u32);
initial.vs_program_binary =
initial.default_attributes + initial.default_attributes_size * sizeof(u32);
initial.vs_swizzle_data =
initial.vs_program_binary + initial.vs_program_binary_size * sizeof(u32);
initial.vs_float_uniforms =
initial.vs_swizzle_data + initial.vs_swizzle_data_size * sizeof(u32);
initial.gs_program_binary =
initial.vs_float_uniforms + initial.vs_float_uniforms_size * sizeof(u32);
initial.gs_swizzle_data =
initial.gs_program_binary + initial.gs_program_binary_size * sizeof(u32);
initial.gs_float_uniforms =
initial.gs_swizzle_data + initial.gs_swizzle_data_size * sizeof(u32);
header.stream_offset = initial.gs_float_uniforms + initial.gs_float_uniforms_size * sizeof(u32);
// Iterate through stream elements, update relevant stream element data
for (auto& stream_element : stream) {
switch (stream_element.data.type) {
case MemoryLoad: {
auto& file_offset = memory_regions[stream_element.hash];
if (!stream_element.uses_existing_data) {
file_offset = header.stream_offset;
}
stream_element.data.memory_load.file_offset = file_offset;
break;
}
default:
// Other commands don't use any extra data
DEBUG_ASSERT(stream_element.extra_data.size() == 0);
break;
}
header.stream_offset += static_cast<u32>(stream_element.extra_data.size());
}
try {
// Open file and write header
FileUtil::IOFile file(filename, "wb");
std::size_t written = file.WriteObject(header);
if (written != 1 || file.Tell() != initial.gpu_registers)
throw "Failed to write header";
// Write initial state
written =
file.WriteArray(initial_state.gpu_registers.data(), initial_state.gpu_registers.size());
if (written != initial_state.gpu_registers.size() || file.Tell() != initial.lcd_registers)
throw "Failed to write GPU registers";
written =
file.WriteArray(initial_state.lcd_registers.data(), initial_state.lcd_registers.size());
if (written != initial_state.lcd_registers.size() || file.Tell() != initial.pica_registers)
throw "Failed to write LCD registers";
written = file.WriteArray(initial_state.pica_registers.data(),
initial_state.pica_registers.size());
if (written != initial_state.pica_registers.size() ||
file.Tell() != initial.default_attributes)
throw "Failed to write Pica registers";
written = file.WriteArray(initial_state.default_attributes.data(),
initial_state.default_attributes.size());
if (written != initial_state.default_attributes.size() ||
file.Tell() != initial.vs_program_binary)
throw "Failed to write default vertex attributes";
written = file.WriteArray(initial_state.vs_program_binary.data(),
initial_state.vs_program_binary.size());
if (written != initial_state.vs_program_binary.size() ||
file.Tell() != initial.vs_swizzle_data)
throw "Failed to write vertex shader program binary";
written = file.WriteArray(initial_state.vs_swizzle_data.data(),
initial_state.vs_swizzle_data.size());
if (written != initial_state.vs_swizzle_data.size() ||
file.Tell() != initial.vs_float_uniforms)
throw "Failed to write vertex shader swizzle data";
written = file.WriteArray(initial_state.vs_float_uniforms.data(),
initial_state.vs_float_uniforms.size());
if (written != initial_state.vs_float_uniforms.size() ||
file.Tell() != initial.gs_program_binary)
throw "Failed to write vertex shader float uniforms";
written = file.WriteArray(initial_state.gs_program_binary.data(),
initial_state.gs_program_binary.size());
if (written != initial_state.gs_program_binary.size() ||
file.Tell() != initial.gs_swizzle_data)
throw "Failed to write geomtry shader program binary";
written = file.WriteArray(initial_state.gs_swizzle_data.data(),
initial_state.gs_swizzle_data.size());
if (written != initial_state.gs_swizzle_data.size() ||
file.Tell() != initial.gs_float_uniforms)
throw "Failed to write geometry shader swizzle data";
written = file.WriteArray(initial_state.gs_float_uniforms.data(),
initial_state.gs_float_uniforms.size());
if (written != initial_state.gs_float_uniforms.size() ||
file.Tell() != initial.gs_float_uniforms + sizeof(u32) * initial.gs_float_uniforms_size)
throw "Failed to write geometry shader float uniforms";
// Iterate through stream elements, write "extra data"
for (const auto& stream_element : stream) {
if (stream_element.extra_data.size() == 0)
continue;
written =
file.WriteBytes(stream_element.extra_data.data(), stream_element.extra_data.size());
if (written != stream_element.extra_data.size())
throw "Failed to write extra data";
}
if (file.Tell() != header.stream_offset)
throw "Unexpected end of extra data";
// Write actual stream elements
for (const auto& stream_element : stream) {
if (1 != file.WriteObject(stream_element.data))
throw "Failed to write stream element";
}
} catch (const char* str) {
LOG_ERROR(HW_GPU, "Writing CiTrace file failed: {}", str);
}
}
void Recorder::FrameFinished() {
stream.push_back({{FrameMarker}});
}
void Recorder::MemoryAccessed(const u8* data, u32 size, u32 physical_address) {
StreamElement element = {{MemoryLoad}};
element.data.memory_load.size = size;
element.data.memory_load.physical_address = physical_address;
// Compute hash over given memory region to check if the contents are already stored internally
boost::crc_32_type result;
result.process_bytes(data, size);
element.hash = result.checksum();
element.uses_existing_data = (memory_regions.find(element.hash) != memory_regions.end());
if (!element.uses_existing_data) {
element.extra_data.resize(size);
memcpy(element.extra_data.data(), data, size);
memory_regions.insert({element.hash, 0}); // file offset will be initialized in Finish()
}
stream.push_back(element);
}
template <typename T>
void Recorder::RegisterWritten(u32 physical_address, T value) {
StreamElement element = {{RegisterWrite}};
element.data.register_write.size =
(sizeof(T) == 1) ? CTRegisterWrite::SIZE_8
: (sizeof(T) == 2) ? CTRegisterWrite::SIZE_16
: (sizeof(T) == 4) ? CTRegisterWrite::SIZE_32
: CTRegisterWrite::SIZE_64;
element.data.register_write.physical_address = physical_address;
element.data.register_write.value = value;
stream.push_back(element);
}
template void Recorder::RegisterWritten(u32, u8);
template void Recorder::RegisterWritten(u32, u16);
template void Recorder::RegisterWritten(u32, u32);
template void Recorder::RegisterWritten(u32, u64);
} // namespace CiTrace
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