Using exceptions
This commit is contained in:
Sergio Martin
parent
393e51ebcb
commit
bd737267ae
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@ -15,6 +15,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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// Emu 0.7.0
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#include <stdexcept>
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#include "cpu.hpp"
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#include "apu/apu.hpp"
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#include "mappers/mapper.hpp"
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@ -172,68 +173,55 @@ class Core : private Cpu
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const size_t inputDataSize,
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uint8_t* __restrict__ outputData,
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size_t* outputDataPos,
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const bool useDifferentialCompression = false,
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const uint8_t* __restrict__ referenceData = nullptr,
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size_t* referenceDataPos = 0,
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const size_t outputMaxSize = 0,
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const bool useZlib = false
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)
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{
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// If not using differential compression, process the entire input block
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if (useDifferentialCompression == false)
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// Only perform compression if input is not null
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if (outputData != nullptr)
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{
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// Only perform memcpy if the input block is not null
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if (outputData != nullptr) memcpy(&outputData[*outputDataPos], inputData, inputDataSize);
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*outputDataPos += inputDataSize;
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}
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// Variable to store difference count
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auto diffCount = (usize_t*)&outputData[*outputDataPos];
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// If using differential compression
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if (useDifferentialCompression == true)
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{
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// Only perform compression if input is not null
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if (outputData != nullptr)
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// Advancing position pointer to store the difference counter
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*outputDataPos += sizeof(usize_t);
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// If we reached maximum output, stop here
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if (*outputDataPos >= outputMaxSize)
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{
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// Variable to store difference count
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auto diffCount = (usize_t*)&outputData[*outputDataPos];
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fprintf(stderr, "[Error] Maximum output data position reached before differential encode (%lu)\n", outputMaxSize);
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std::runtime_error("Error while serializing");
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}
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// Advancing position pointer to store the difference counter
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*outputDataPos += sizeof(usize_t);
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// Encoding differential
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int ret = xd3_encode_memory(
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inputData,
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inputDataSize,
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&referenceData[*referenceDataPos],
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inputDataSize,
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&outputData[*outputDataPos],
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diffCount,
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outputMaxSize - *outputDataPos,
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useZlib ? 0 : XD3_NOCOMPRESS
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);
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// If we reached maximum output, stop here
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if (*outputDataPos >= outputMaxSize)
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{
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fprintf(stderr, "[Error] Maximum output data position reached before differential encode (%lu)\n", outputMaxSize);
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exit(-1);
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}
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// If an error happened, print it here
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if (ret != 0)
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{
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fprintf(stderr, "[Error] unexpected error while encoding differential compression. Diff count: %u\n", *diffCount);
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std::runtime_error("Error while serializing");
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}
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// Encoding differential
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int ret = xd3_encode_memory(
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inputData,
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inputDataSize,
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&referenceData[*referenceDataPos],
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inputDataSize,
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&outputData[*outputDataPos],
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diffCount,
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outputMaxSize - *outputDataPos,
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useZlib ? 0 : XD3_NOCOMPRESS
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);
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// Increasing output data position pointer
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*outputDataPos += *diffCount;
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// If an error happened, print it here
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if (ret != 0)
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{
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fprintf(stderr, "[Error] unexpected error while encoding differential compression. Diff count: %u\n", *diffCount);
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exit(-1);
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}
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// Increasing output data position pointer
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*outputDataPos += *diffCount;
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// If exceeded size, report it
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if ((usize_t)*outputDataPos > outputMaxSize)
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{
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fprintf(stderr, "[Error] Differential compression size (%u) exceeded output maximum size (%lu).\n", *diffCount, outputMaxSize);
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exit(-1);
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}
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// If exceeded size, report it
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if ((usize_t)*outputDataPos > outputMaxSize)
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{
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fprintf(stderr, "[Error] Differential compression size (%u) exceeded output maximum size (%lu).\n", *diffCount, outputMaxSize);
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std::runtime_error("Error while serializing");
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}
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}
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@ -246,53 +234,40 @@ class Core : private Cpu
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const size_t outputDataSize,
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const uint8_t* __restrict__ inputData,
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size_t* inputDataPos,
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const bool useDifferentialCompression = false,
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const uint8_t* __restrict__ referenceData = nullptr,
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size_t* referenceDataPos = 0,
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const bool useZlib = false
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)
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{
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// If not using differential compression, process the entire input block
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if (useDifferentialCompression == false)
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// Reading differential count
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usize_t diffCount;
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memcpy(&diffCount, &inputData[*inputDataPos], sizeof(usize_t));
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// Advancing position pointer to store the difference counter
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*inputDataPos += sizeof(usize_t);
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// Encoding differential
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usize_t output_size;
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int ret = xd3_decode_memory(
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&inputData[*inputDataPos],
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diffCount,
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&referenceData[*referenceDataPos],
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outputDataSize,
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outputData,
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&output_size,
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outputDataSize,
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useZlib ? 0 : XD3_NOCOMPRESS
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);
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// If an error happened, print it here
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if (ret != 0)
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{
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// Only perform memcpy if the input block is not null
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if (outputData != nullptr) memcpy(outputData, &inputData[*inputDataPos], outputDataSize);
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*inputDataPos += outputDataSize;
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fprintf(stderr, "[Error] unexpected error while decoding differential compression. Diff count: %u\n", diffCount);
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std::runtime_error("Error while deserializing");
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}
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// If using differential compression
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if (useDifferentialCompression == true)
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{
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// Reading differential count
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usize_t diffCount;
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memcpy(&diffCount, &inputData[*inputDataPos], sizeof(usize_t));
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// Advancing position pointer to store the difference counter
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*inputDataPos += sizeof(usize_t);
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// Encoding differential
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usize_t output_size;
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int ret = xd3_decode_memory(
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&inputData[*inputDataPos],
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diffCount,
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&referenceData[*referenceDataPos],
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outputDataSize,
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outputData,
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&output_size,
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outputDataSize,
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useZlib ? 0 : XD3_NOCOMPRESS
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);
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// If an error happened, print it here
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if (ret != 0)
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{
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fprintf(stderr, "[Error] unexpected error while decoding differential compression. Diff count: %u\n", diffCount);
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exit(-1);
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}
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// Increasing output data position pointer
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*inputDataPos += diffCount;
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}
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// Increasing output data position pointer
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*inputDataPos += diffCount;
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// Finally, increasing reference data position pointer
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*referenceDataPos += outputDataSize;
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@ -383,8 +358,8 @@ class Core : private Cpu
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outputDataPos += headerSize; referenceDataPos += headerSize;
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}
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if (useDifferentialCompression == true) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == false) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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if (useDifferentialCompression == false) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == true) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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}
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if (APURBlockEnabled == true)
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@ -456,8 +431,8 @@ class Core : private Cpu
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outputDataPos += headerSize; referenceDataPos += headerSize;
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}
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if (useDifferentialCompression == true) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == false) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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if (useDifferentialCompression == false) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == true) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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}
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if (SPRTBlockEnabled == true)
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@ -474,14 +449,15 @@ class Core : private Cpu
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outputDataPos += headerSize; referenceDataPos += headerSize;
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}
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if (useDifferentialCompression == true) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == false) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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if (useDifferentialCompression == false) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == true) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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}
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if (NTABBlockEnabled == true)
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{
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size_t nametable_size = 0x800;
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if (ppu.nt_banks[3] >= &ppu.impl->nt_ram[0xC00]) nametable_size = 0x1000;
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blockSize = nametable_size;
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dataSource = (void *)ppu.impl->nt_ram;
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@ -494,8 +470,8 @@ class Core : private Cpu
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outputDataPos += headerSize; referenceDataPos += headerSize;
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}
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if (useDifferentialCompression == true) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == false) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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if (useDifferentialCompression == false) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == true) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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}
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if (CHRRBlockEnabled == true)
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@ -514,8 +490,8 @@ class Core : private Cpu
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outputDataPos += headerSize; referenceDataPos += headerSize;
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}
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if (useDifferentialCompression == true) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == false) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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if (useDifferentialCompression == false) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == true) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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}
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}
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@ -535,8 +511,8 @@ class Core : private Cpu
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outputDataPos += headerSize; referenceDataPos += headerSize;
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}
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if (useDifferentialCompression == true) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == false) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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if (useDifferentialCompression == false) serializeContiguousData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos);
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if (useDifferentialCompression == true) serializeDifferentialData((uint8_t*)dataSource, blockSize, outputData, &outputDataPos, referenceData, &referenceDataPos, outputMaxSize, useZlib);
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}
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}
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@ -604,7 +580,7 @@ class Core : private Cpu
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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if (useDifferentialCompression == false) deserializeContiguousData(outputData, blockSize, inputStateData, &inputDataPos);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, useZlib);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, referenceData, &referenceDataPos, useZlib);
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}
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// APUR Block
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@ -634,11 +610,15 @@ class Core : private Cpu
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if (MAPRBlockEnabled == true)
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{
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mapper->default_reset_state();
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auto outputData = (uint8_t *)&mapper->state;
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blockSize = mapper->state_size;
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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memcpy(outputData, &inputStateData[inputDataPos], blockSize);
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inputDataPos += blockSize;
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mapper->apply_mapping();
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}
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@ -650,7 +630,7 @@ class Core : private Cpu
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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if (useDifferentialCompression == false) deserializeContiguousData(outputData, blockSize, inputStateData, &inputDataPos);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, useZlib);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, referenceData, &referenceDataPos, useZlib);
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}
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// SPRT Block
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@ -661,7 +641,7 @@ class Core : private Cpu
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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if (useDifferentialCompression == false) deserializeContiguousData(outputData, blockSize, inputStateData, &inputDataPos);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, useZlib);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, referenceData, &referenceDataPos, useZlib);
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}
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// NTAB Block
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@ -674,7 +654,7 @@ class Core : private Cpu
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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if (useDifferentialCompression == false) deserializeContiguousData(outputData, blockSize, inputStateData, &inputDataPos);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, useZlib);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, referenceData, &referenceDataPos, useZlib);
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}
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// CHRR Block
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@ -687,7 +667,7 @@ class Core : private Cpu
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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if (useDifferentialCompression == false) deserializeContiguousData(outputData, blockSize, inputStateData, &inputDataPos);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, useZlib);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, referenceData, &referenceDataPos, useZlib);
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ppu.all_tiles_modified();
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}
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@ -703,7 +683,7 @@ class Core : private Cpu
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if (HEADBlockEnabled == true) { inputDataPos += 2 * headerSize; referenceDataPos += 2 * headerSize; }
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if (useDifferentialCompression == false) deserializeContiguousData(outputData, blockSize, inputStateData, &inputDataPos);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, useDifferentialCompression, referenceData, &referenceDataPos, useZlib);
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if (useDifferentialCompression == true) deserializeDifferentialData(outputData, blockSize, inputStateData, &inputDataPos, referenceData, &referenceDataPos, useZlib);
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}
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}
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