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Made an attempt to separate and isolate the stuff of creating flux events from a PCMSegment, eventually to factor that out of PCMTrack and make it available also to PCMPatchedTrack.

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This commit is contained in:
Thomas Harte 2016-12-17 21:13:57 -05:00
parent 313db75303
commit 254cc41fd6
8 changed files with 122 additions and 43 deletions
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10
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
View File

@ -11,6 +11,7 @@
4B0BE4281D3481E700D5256B /* DigitalPhaseLockedLoop.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B0BE4261D3481E700D5256B /* DigitalPhaseLockedLoop.cpp */; };
4B0CCC451C62D0B3001CAC5F /* CRT.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B0CCC421C62D0B3001CAC5F /* CRT.cpp */; };
4B121F951E05E66800BFDA12 /* PCMPatchedTrackTests.mm in Sources */ = {isa = PBXBuildFile; fileRef = 4B121F941E05E66800BFDA12 /* PCMPatchedTrackTests.mm */; };
4B121F981E060CF000BFDA12 /* PCMSegment.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B121F961E060CF000BFDA12 /* PCMSegment.cpp */; };
4B14145B1B58879D00E04248 /* CPU6502.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B1414571B58879D00E04248 /* CPU6502.cpp */; };
4B14145D1B5887A600E04248 /* CPU6502.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B1414571B58879D00E04248 /* CPU6502.cpp */; };
4B14145E1B5887AA00E04248 /* CPU6502AllRAM.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B1414591B58879D00E04248 /* CPU6502AllRAM.cpp */; };
@ -426,8 +427,9 @@
4B0BE4271D3481E700D5256B /* DigitalPhaseLockedLoop.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = DigitalPhaseLockedLoop.hpp; sourceTree = "<group>"; };
4B0CCC421C62D0B3001CAC5F /* CRT.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CRT.cpp; sourceTree = "<group>"; };
4B0CCC431C62D0B3001CAC5F /* CRT.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = CRT.hpp; sourceTree = "<group>"; };
4B121F931E05E66800BFDA12 /* PCMPatchedTrackTests.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = PCMPatchedTrackTests.h; sourceTree = "<group>"; };
4B121F941E05E66800BFDA12 /* PCMPatchedTrackTests.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = PCMPatchedTrackTests.mm; sourceTree = "<group>"; };
4B121F961E060CF000BFDA12 /* PCMSegment.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = PCMSegment.cpp; sourceTree = "<group>"; };
4B121F971E060CF000BFDA12 /* PCMSegment.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = PCMSegment.hpp; sourceTree = "<group>"; };
4B1414501B58848C00E04248 /* ClockSignal-Bridging-Header.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "ClockSignal-Bridging-Header.h"; sourceTree = "<group>"; };
4B1414571B58879D00E04248 /* CPU6502.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CPU6502.cpp; sourceTree = "<group>"; };
4B1414581B58879D00E04248 /* CPU6502.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = CPU6502.hpp; sourceTree = "<group>"; };
@ -503,7 +505,6 @@
4B4DC82A1D2C27A4003C5BF8 /* SerialBus.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = SerialBus.hpp; sourceTree = "<group>"; };
4B5073051DDD3B9400C48FBD /* ArrayBuilder.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = ArrayBuilder.cpp; sourceTree = "<group>"; };
4B5073061DDD3B9400C48FBD /* ArrayBuilder.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = ArrayBuilder.hpp; sourceTree = "<group>"; };
4B5073081DDFCFDF00C48FBD /* ArrayBuilderTests.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ArrayBuilderTests.h; sourceTree = "<group>"; };
4B5073091DDFCFDF00C48FBD /* ArrayBuilderTests.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ArrayBuilderTests.mm; sourceTree = "<group>"; };
4B55CE5B1C3B7D6F0093A61B /* CSOpenGLView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CSOpenGLView.h; sourceTree = "<group>"; };
4B55CE5C1C3B7D6F0093A61B /* CSOpenGLView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CSOpenGLView.m; sourceTree = "<group>"; };
@ -1302,12 +1303,14 @@
4B6C73BB1D387AE500AFCFCA /* DiskController.cpp */,
4B30512B1D989E2200B4FED8 /* Drive.cpp */,
4B3F1B441E0388D200DB26EE /* PCMPatchedTrack.cpp */,
4B121F961E060CF000BFDA12 /* PCMSegment.cpp */,
4BAB62B61D3302CA00DF5BA0 /* PCMTrack.cpp */,
4B0BE4271D3481E700D5256B /* DigitalPhaseLockedLoop.hpp */,
4BAB62AC1D3272D200DF5BA0 /* Disk.hpp */,
4B6C73BC1D387AE500AFCFCA /* DiskController.hpp */,
4B30512C1D989E2200B4FED8 /* Drive.hpp */,
4B3F1B451E0388D200DB26EE /* PCMPatchedTrack.hpp */,
4B121F971E060CF000BFDA12 /* PCMSegment.hpp */,
4BAB62B71D3302CA00DF5BA0 /* PCMTrack.hpp */,
4BB697CF1D4BA44900248BDF /* Encodings */,
4BAB62B21D327F7E00DF5BA0 /* Formats */,
@ -1681,8 +1684,6 @@
4BB73EB51B587A5100552FC2 /* Clock SignalTests */ = {
isa = PBXGroup;
children = (
4B5073081DDFCFDF00C48FBD /* ArrayBuilderTests.h */,
4B121F931E05E66800BFDA12 /* PCMPatchedTrackTests.h */,
4B121F941E05E66800BFDA12 /* PCMPatchedTrackTests.mm */,
4B5073091DDFCFDF00C48FBD /* ArrayBuilderTests.mm */,
4BB73EB81B587A5100552FC2 /* Info.plist */,
@ -2450,6 +2451,7 @@
4B3BA0D11D318B44005DD7A7 /* TestMachine.mm in Sources */,
4B92EACA1B7C112B00246143 /* 6502TimingTests.swift in Sources */,
4BB73EB71B587A5100552FC2 /* AllSuiteATests.swift in Sources */,
4B121F981E060CF000BFDA12 /* PCMSegment.cpp in Sources */,
4BEF6AAC1D35D1C400E73575 /* DPLLTests.swift in Sources */,
4B3BA0CF1D318B44005DD7A7 /* MOS6522Bridge.mm in Sources */,
4BC751B21D157E61006C31D9 /* 6522Tests.swift in Sources */,

13
OSBindings/Mac/Clock SignalTests/ArrayBuilderTests.h
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@ -1,13 +0,0 @@
//
// ArrayBuilderTests.h
// Clock Signal
//
// Created by Thomas Harte on 19/11/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#import <XCTest/XCTest.h>
@interface ArrayBuilderTests : XCTestCase
@end

6
OSBindings/Mac/Clock SignalTests/ArrayBuilderTests.mm
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@ -6,7 +6,8 @@
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#import "ArrayBuilderTests.h"
#import <XCTest/XCTest.h>
#include "ArrayBuilder.hpp"
static NSData *inputData, *outputData;
@ -17,6 +18,9 @@ static void setData(bool is_input, uint8_t *data, size_t size)
if(is_input) inputData = dataObject; else outputData = dataObject;
}
@interface ArrayBuilderTests : XCTestCase
@end
@implementation ArrayBuilderTests
+ (void)setUp

13
OSBindings/Mac/Clock SignalTests/PCMPatchedTrackTests.h
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@ -1,13 +0,0 @@
//
// PCMPatchedTrackTests.h
// Clock Signal
//
// Created by Thomas Harte on 17/12/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#import <XCTest/XCTest.h>
@interface PCMPatchedTrackTests : XCTestCase
@end

15
OSBindings/Mac/Clock SignalTests/PCMPatchedTrackTests.mm
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@ -6,11 +6,14 @@
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#import "PCMPatchedTrackTests.h"
#import <XCTest/XCTest.h>
#include "PCMTrack.hpp"
#include "PCMPatchedTrack.hpp"
@interface PCMPatchedTrackTests : XCTestCase
@end
@implementation PCMPatchedTrackTests
- (std::shared_ptr<Storage::Disk::Track>)togglingTrack
@ -50,4 +53,14 @@
[self assertOneThirtyTwosForTrack:self.patchableTogglingTrack];
}
- (void)testZeroPatch
{
std::shared_ptr<Storage::Disk::Track> patchableTrack = self.togglingTrack;
Storage::Disk::PCMPatchedTrack *patchable = dynamic_cast<Storage::Disk::PCMPatchedTrack *>(patchableTrack.get());
if(patchable)
{
printf(".");
}
}
@end

48
Storage/Disk/PCMSegment.cpp Normal file
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@ -0,0 +1,48 @@
//
// PCMSegment.cpp
// Clock Signal
//
// Created by Thomas Harte on 17/12/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#include "PCMSegment.hpp"
using namespace Storage::Disk;
PCMSegmentEventSource::PCMSegmentEventSource(const PCMSegment &segment) :
segment_(segment)
{
if(segment_.length_of_a_bit.length&1)
{
segment_.length_of_a_bit.length <<= 1;
segment_.length_of_a_bit.clock_rate <<= 1;
}
next_event_.length.clock_rate = segment_.length_of_a_bit.clock_rate;
reset();
}
void PCMSegmentEventSource::reset()
{
bit_pointer_ = 0;
next_event_.length.length = -(segment_.length_of_a_bit.length >> 1);
next_event_.type = Track::Event::FluxTransition;
}
Storage::Disk::Track::Event PCMSegmentEventSource::get_next_event()
{
Storage::Disk::Track::Event next_event;
const uint8_t *segment_data = segment_.data.data();
while(bit_pointer_ < segment_.number_of_bits)
{
int bit = segment_data[bit_pointer_ >> 3] & (0x80 >> (bit_pointer_&7));
bit_pointer_++;
next_event_.length.length += segment_.length_of_a_bit.length;
if(bit) return next_event_;
}
next_event_.type = Track::Event::IndexHole;
return next_event;
}

48
Storage/Disk/PCMSegment.hpp Normal file
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@ -0,0 +1,48 @@
//
// PCMSegment.hpp
// Clock Signal
//
// Created by Thomas Harte on 17/12/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#ifndef PCMSegment_hpp
#define PCMSegment_hpp
#include <cstdint>
#include <vector>
#include "../Storage.hpp"
#include "Disk.hpp"
namespace Storage {
namespace Disk {
/*!
A segment of PCM-sampled data.
Bits from each byte are taken MSB to LSB.
*/
struct PCMSegment {
Time length_of_a_bit;
unsigned int number_of_bits;
std::vector<uint8_t> data;
};
class PCMSegmentEventSource {
public:
PCMSegmentEventSource(const PCMSegment &segment);
Track::Event get_next_event();
void reset();
private:
PCMSegment segment_;
size_t bit_pointer_;
Track::Event next_event_;
};
}
}
#endif /* PCMSegment_hpp */

12
Storage/Disk/PCMTrack.hpp
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@ -10,22 +10,12 @@
#define PCMTrack_hpp
#include "Disk.hpp"
#include "PCMSegment.hpp"
#include <vector>
namespace Storage {
namespace Disk {
/*!
A segment of PCM-sampled data.
Bits from each byte are taken MSB to LSB.
*/
struct PCMSegment {
Time length_of_a_bit;
unsigned int number_of_bits;
std::vector<uint8_t> data;
};
/*!
A subclass of @c Track that provides its @c Events by querying a pulse-code modulated record of original
flux detections, with an implied index hole at the very start of the data.