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[Aaru.Checksums] Introduced constants for module names

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Introduces constant fields for respective debug module names, replacing the hardcoded ones.
This is done to standardize the naming convention, reduce redundancy and potentially avoid any typos or name mismatches across the project.
This change makes the code more maintainable and easier to update in case module names need to be changed.
This commit is contained in:
Natalia Portillo
2023-10-03 16:54:34 +01:00
parent c26d833e6a
commit 73def971ac
2 changed files with 42 additions and 40 deletions
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65
CDChecksums.cs
View File

@@ -41,6 +41,7 @@ namespace Aaru.Checksums;
/// <summary>Implements ReedSolomon and CRC32 algorithms as used by CD-ROM</summary>
public static class CdChecksums
{
const string MODULE_NAME = "CD checksums";
static byte[] _eccFTable;
static byte[] _eccBTable;
static uint[] _edcTable;
@@ -190,7 +191,7 @@ public static class CdChecksums
channel[0x00B] != 0x00)
return null;
//AaruConsole.DebugWriteLine("CD checksums", "Data sector, address {0:X2}:{1:X2}:{2:X2}", channel[0x00C],
//AaruConsole.DebugWriteLine(MODULE_NAME, "Data sector, address {0:X2}:{1:X2}:{2:X2}", channel[0x00C],
// channel[0x00D], channel[0x00E]);
switch(channel[0x00F] & 0x03)
@@ -198,12 +199,12 @@ public static class CdChecksums
// mode (1 byte)
case 0x00:
{
//AaruConsole.DebugWriteLine("CD checksums", "Mode 0 sector at address {0:X2}:{1:X2}:{2:X2}",
//AaruConsole.DebugWriteLine(MODULE_NAME, "Mode 0 sector at address {0:X2}:{1:X2}:{2:X2}",
// channel[0x00C], channel[0x00D], channel[0x00E]);
for(int i = 0x010; i < 0x930; i++)
if(channel[i] != 0x00)
{
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 0 sector with error at address: {0:X2}:{1:X2}:{2:X2}",
channel[0x00C], channel[0x00D], channel[0x00E]);
@@ -214,13 +215,13 @@ public static class CdChecksums
}
// mode (1 byte)
//AaruConsole.DebugWriteLine("CD checksums", "Mode 1 sector at address {0:X2}:{1:X2}:{2:X2}",
//AaruConsole.DebugWriteLine(MODULE_NAME, "Mode 1 sector at address {0:X2}:{1:X2}:{2:X2}",
// channel[0x00C], channel[0x00D], channel[0x00E]);
case 0x01 when channel[0x814] != 0x00 || // reserved (8 bytes)
channel[0x815] != 0x00 || channel[0x816] != 0x00 || channel[0x817] != 0x00 ||
channel[0x818] != 0x00 || channel[0x819] != 0x00 || channel[0x81A] != 0x00 ||
channel[0x81B] != 0x00:
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 1 sector with data in reserved bytes at address: {0:X2}:{1:X2}:{2:X2}",
channel[0x00C], channel[0x00D], channel[0x00E]);
@@ -246,12 +247,12 @@ public static class CdChecksums
correctEccQ = !failedEccQ;
if(failedEccP)
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 1 sector at address: {0:X2}:{1:X2}:{2:X2}, fails ECC P check",
channel[0x00C], channel[0x00D], channel[0x00E]);
if(failedEccQ)
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 1 sector at address: {0:X2}:{1:X2}:{2:X2}, fails ECC Q check",
channel[0x00C], channel[0x00D], channel[0x00E]);
@@ -263,7 +264,7 @@ public static class CdChecksums
if(calculatedEdc == storedEdc)
return !failedEccP && !failedEccQ;
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 1 sector at address: {0:X2}:{1:X2}:{2:X2}, got CRC 0x{3:X8} expected 0x{4:X8}",
channel[0x00C], channel[0x00D], channel[0x00E], calculatedEdc, storedEdc);
@@ -273,7 +274,7 @@ public static class CdChecksums
// mode (1 byte)
case 0x02:
{
//AaruConsole.DebugWriteLine("CD checksums", "Mode 2 sector at address {0:X2}:{1:X2}:{2:X2}",
//AaruConsole.DebugWriteLine(MODULE_NAME, "Mode 2 sector at address {0:X2}:{1:X2}:{2:X2}",
// channel[0x00C], channel[0x00D], channel[0x00E]);
byte[] mode2Sector = new byte[channel.Length - 0x10];
Array.Copy(channel, 0x10, mode2Sector, 0, mode2Sector.Length);
@@ -284,7 +285,7 @@ public static class CdChecksums
channel[0x011] != channel[0x015] ||
channel[0x012] != channel[0x016] ||
channel[0x013] != channel[0x017])
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Subheader copies differ in mode 2 form 2 sector at address: {0:X2}:{1:X2}:{2:X2}",
channel[0x00C], channel[0x00D], channel[0x00E]);
@@ -301,7 +302,7 @@ public static class CdChecksums
if(calculatedEdc == storedEdc)
return true;
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 2 form 2 sector at address: {0:X2}:{1:X2}:{2:X2}, got CRC 0x{3:X8} expected 0x{4:X8}",
channel[0x00C], channel[0x00D], channel[0x00E], calculatedEdc,
storedEdc);
@@ -314,7 +315,7 @@ public static class CdChecksums
channel[0x011] != channel[0x015] ||
channel[0x012] != channel[0x016] ||
channel[0x013] != channel[0x017])
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Subheader copies differ in mode 2 form 1 sector at address: {0:X2}:{1:X2}:{2:X2}",
channel[0x00C], channel[0x00D], channel[0x00E]);
@@ -332,12 +333,12 @@ public static class CdChecksums
correctEccQ = !failedEccQ;
if(failedEccP)
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 2 form 1 sector at address: {0:X2}:{1:X2}:{2:X2}, fails ECC P check",
channel[0x00C], channel[0x00D], channel[0x00E]);
if(failedEccQ)
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 2 form 1 sector at address: {0:X2}:{1:X2}:{2:X2}, fails ECC Q check",
channel[0x00C], channel[0x00D], channel[0x00E]);
@@ -349,7 +350,7 @@ public static class CdChecksums
if(calculatedEdc == storedEdc)
return !failedEccP && !failedEccQ;
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
"Mode 2 sector at address: {0:X2}:{1:X2}:{2:X2}, got CRC 0x{3:X8} expected 0x{4:X8}",
channel[0x00C], channel[0x00D], channel[0x00E], calculatedEdc,
storedEdc);
@@ -358,7 +359,7 @@ public static class CdChecksums
}
}
default:
AaruConsole.DebugWriteLine("CD checksums", "Unknown mode {0} sector at address: {1:X2}:{2:X2}:{3:X2}",
AaruConsole.DebugWriteLine(MODULE_NAME, "Unknown mode {0} sector at address: {1:X2}:{2:X2}:{3:X2}",
channel[0x00F], channel[0x00C], channel[0x00D], channel[0x00E]);
return null;
@@ -508,35 +509,35 @@ public static class CdChecksums
switch(cdSubRwPack1[0])
{
case 0x00:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_Zero_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_Zero_Pack_in_subchannel);
break;
case 0x08:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_Line_Graphics_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_Line_Graphics_Pack_in_subchannel);
break;
case 0x09:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_CD_G_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_CD_G_Pack_in_subchannel);
break;
case 0x0A:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_CD_EG_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_CD_EG_Pack_in_subchannel);
break;
case 0x14:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_CD_TEXT_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_CD_TEXT_Pack_in_subchannel);
break;
case 0x18:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_CD_MIDI_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_CD_MIDI_Pack_in_subchannel);
break;
case 0x38:
AaruConsole.DebugWriteLine("CD checksums", Localization.Detected_User_Pack_in_subchannel);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Detected_User_Pack_in_subchannel);
break;
default:
AaruConsole.DebugWriteLine("CD checksums",
AaruConsole.DebugWriteLine(MODULE_NAME,
Localization.Detected_unknown_Pack_type_in_subchannel_mode_0_item_1,
Convert.ToString(cdSubRwPack1[0] & 0x38, 2),
Convert.ToString(cdSubRwPack1[0] & 0x07, 2));
@@ -551,7 +552,7 @@ public static class CdChecksums
if(qSubChannelCrc != calculatedQcrc)
{
AaruConsole.DebugWriteLine("CD checksums", Localization.Q_subchannel_CRC_0_expected_1, calculatedQcrc,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Q_subchannel_CRC_0_expected_1, calculatedQcrc,
qSubChannelCrc);
status = false;
@@ -567,7 +568,7 @@ public static class CdChecksums
if(cdTextPack1Crc != calculatedCdtp1Crc &&
cdTextPack1Crc != 0)
{
AaruConsole.DebugWriteLine("CD checksums", Localization.CD_Text_Pack_one_CRC_0_expected_1,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.CD_Text_Pack_one_CRC_0_expected_1,
cdTextPack1Crc, calculatedCdtp1Crc);
status = false;
@@ -581,13 +582,13 @@ public static class CdChecksums
Array.Copy(cdTextPack2, 0, cdTextPack2ForCrc, 0, 16);
ushort calculatedCdtp2Crc = CRC16CCITTContext.Calculate(cdTextPack2ForCrc);
AaruConsole.DebugWriteLine("CD checksums", Localization.Cyclic_CDTP2_0_Calc_CDTP2_1, cdTextPack2Crc,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Cyclic_CDTP2_0_Calc_CDTP2_1, cdTextPack2Crc,
calculatedCdtp2Crc);
if(cdTextPack2Crc != calculatedCdtp2Crc &&
cdTextPack2Crc != 0)
{
AaruConsole.DebugWriteLine("CD checksums", Localization.CD_Text_Pack_two_CRC_0_expected_1,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.CD_Text_Pack_two_CRC_0_expected_1,
cdTextPack2Crc, calculatedCdtp2Crc);
status = false;
@@ -601,13 +602,13 @@ public static class CdChecksums
Array.Copy(cdTextPack3, 0, cdTextPack3ForCrc, 0, 16);
ushort calculatedCdtp3Crc = CRC16CCITTContext.Calculate(cdTextPack3ForCrc);
AaruConsole.DebugWriteLine("CD checksums", Localization.Cyclic_CDTP3_0_Calc_CDTP3_1, cdTextPack3Crc,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Cyclic_CDTP3_0_Calc_CDTP3_1, cdTextPack3Crc,
calculatedCdtp3Crc);
if(cdTextPack3Crc != calculatedCdtp3Crc &&
cdTextPack3Crc != 0)
{
AaruConsole.DebugWriteLine("CD checksums", Localization.CD_Text_Pack_three_CRC_0_expected_1,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.CD_Text_Pack_three_CRC_0_expected_1,
cdTextPack3Crc, calculatedCdtp3Crc);
status = false;
@@ -622,14 +623,14 @@ public static class CdChecksums
Array.Copy(cdTextPack4, 0, cdTextPack4ForCrc, 0, 16);
ushort calculatedCdtp4Crc = CRC16CCITTContext.Calculate(cdTextPack4ForCrc);
AaruConsole.DebugWriteLine("CD checksums", Localization.Cyclic_CDTP4_0_Calc_CDTP4_1, cdTextPack4Crc,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Cyclic_CDTP4_0_Calc_CDTP4_1, cdTextPack4Crc,
calculatedCdtp4Crc);
if(cdTextPack4Crc == calculatedCdtp4Crc ||
cdTextPack4Crc == 0)
return status;
AaruConsole.DebugWriteLine("CD checksums", Localization.CD_Text_Pack_four_CRC_0_expected_1, cdTextPack4Crc,
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.CD_Text_Pack_four_CRC_0_expected_1, cdTextPack4Crc,
calculatedCdtp4Crc);
return false;

17
ReedSolomon.cs
View File

@@ -67,6 +67,7 @@ public class ReedSolomon
{
/// <summary>Alpha exponent for the first root of the generator polynomial</summary>
const int B0 = 1;
const string MODULE_NAME = "Reed Solomon";
/// <summary>No legal value in index form represents zero, so we need a special value for this purpose</summary>
int _a0;
/// <summary>index->polynomial form conversion table</summary>
@@ -494,18 +495,18 @@ public class ReedSolomon
if(count != noEras)
{
AaruConsole.DebugWriteLine("Reed Solomon", Localization.lambda_is_wrong);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.lambda_is_wrong);
return -1;
}
AaruConsole.DebugWriteLine("Reed Solomon",
AaruConsole.DebugWriteLine(MODULE_NAME,
Localization.Erasure_positions_as_determined_by_roots_of_Eras_Loc_Poly);
for(i = 0; i < count; i++)
AaruConsole.DebugWriteLine("Reed Solomon", "{0} ", loc[i]);
AaruConsole.DebugWriteLine(MODULE_NAME, "{0} ", loc[i]);
AaruConsole.DebugWriteLine("Reed Solomon", "\n");
AaruConsole.DebugWriteLine(MODULE_NAME, "\n");
#endif
}
@@ -612,12 +613,12 @@ public class ReedSolomon
}
#if DEBUG
AaruConsole.DebugWriteLine("Reed Solomon", Localization.Final_error_positions);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Final_error_positions);
for(i = 0; i < count; i++)
AaruConsole.DebugWriteLine("Reed Solomon", "{0} ", loc[i]);
AaruConsole.DebugWriteLine(MODULE_NAME, "{0} ", loc[i]);
AaruConsole.DebugWriteLine("Reed Solomon", "\n");
AaruConsole.DebugWriteLine(MODULE_NAME, "\n");
#endif
if(degLambda != count)
@@ -669,7 +670,7 @@ public class ReedSolomon
if(den == 0)
{
AaruConsole.DebugWriteLine("Reed Solomon", Localization.ERROR_denominator_equals_zero);
AaruConsole.DebugWriteLine(MODULE_NAME, Localization.ERROR_denominator_equals_zero);
return -1;
}