mirror of
https://github.com/TomHarte/CLK.git
synced 2024-07-06 01:28:57 +00:00
Merge branch 'master' into HiRes
This commit is contained in:
Thomas Harte
commit
22389a5d2d
@ -259,7 +259,7 @@ template <class T> class MOS6560 {
|
||||
if(this_state_ != output_state_) {
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||||
switch(output_state_) {
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case State::Sync: crt_->output_sync(cycles_in_state_ * 4); break;
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||||
case State::ColourBurst: crt_->output_colour_burst(cycles_in_state_ * 4, (is_odd_frame_ || is_odd_line_) ? 128 : 0, 0); break;
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case State::ColourBurst: crt_->output_colour_burst(cycles_in_state_ * 4, (is_odd_frame_ || is_odd_line_) ? 128 : 0); break;
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case State::Border: output_border(cycles_in_state_ * 4); break;
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case State::Pixels: crt_->output_data(cycles_in_state_ * 4, 1); break;
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}
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@ -23,7 +23,9 @@ Machine::Machine() :
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nmi_is_enabled_(false),
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tape_player_(ZX8081ClockRate),
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use_fast_tape_hack_(false),
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tape_advance_delay_(0) {
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tape_advance_delay_(0),
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tape_is_automatically_playing_(false),
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tape_is_playing_(false) {
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set_clock_rate(ZX8081ClockRate);
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tape_player_.set_motor_control(true);
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clear_all_keys();
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@ -55,7 +57,7 @@ int Machine::perform_machine_cycle(const CPU::Z80::PartialMachineCycle &cycle) {
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if(is_zx81_) horizontal_counter_ %= 207;
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if(!tape_advance_delay_) {
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tape_player_.run_for_cycles(cycle.length);
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if(tape_is_automatically_playing_ || tape_is_playing_) tape_player_.run_for_cycles(cycle.length);
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} else {
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tape_advance_delay_ = std::max(tape_advance_delay_ - cycle.length, 0);
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}
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@ -147,6 +149,9 @@ int Machine::perform_machine_cycle(const CPU::Z80::PartialMachineCycle &cycle) {
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tape_player_.get_tape()->seek(time);
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}
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}
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// Check for automatic tape control.
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tape_is_automatically_playing_ = use_automatic_tape_motor_control_ && (address >= automatic_tape_motor_start_address_) && (address < automatic_tape_motor_end_address_);
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is_opcode_read = true;
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case CPU::Z80::PartialMachineCycle::Read:
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@ -209,12 +214,16 @@ void Machine::configure_as_target(const StaticAnalyser::Target &target) {
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tape_return_address_ = 0x380;
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vsync_start_cycle_ = 16;
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vsync_end_cycle_ = 32;
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automatic_tape_motor_start_address_ = 0x0340;
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automatic_tape_motor_end_address_ = 0x03c3;
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} else {
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rom_ = zx80_rom_;
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tape_trap_address_ = 0x220;
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tape_return_address_ = 0x248;
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vsync_start_cycle_ = 13;
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vsync_end_cycle_ = 33;
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automatic_tape_motor_start_address_ = 0x0206;
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automatic_tape_motor_end_address_ = 0x024d;
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}
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rom_mask_ = (uint16_t)(rom_.size() - 1);
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@ -63,11 +63,18 @@ class Machine:
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void clear_all_keys();
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inline void set_use_fast_tape_hack(bool activate) { use_fast_tape_hack_ = activate; }
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inline void set_use_automatic_tape_motor_control(bool enabled) {
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use_automatic_tape_motor_control_ = enabled;
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if(!enabled) tape_is_automatically_playing_ = false;
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}
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inline void set_tape_is_playing(bool is_playing) { tape_is_playing_ = is_playing; }
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private:
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std::shared_ptr<Video> video_;
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std::vector<uint8_t> zx81_rom_, zx80_rom_;
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uint16_t tape_trap_address_, tape_return_address_;
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uint16_t automatic_tape_motor_start_address_, automatic_tape_motor_end_address_;
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std::vector<uint8_t> ram_;
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uint16_t ram_mask_, ram_base_;
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@ -94,6 +101,8 @@ class Machine:
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uint8_t latched_video_byte_;
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bool use_fast_tape_hack_;
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bool use_automatic_tape_motor_control_;
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bool tape_is_playing_, tape_is_automatically_playing_;
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int tape_advance_delay_;
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};
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||||
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||||
@ -96,6 +96,7 @@
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||||
4B924E991E74D22700B76AF1 /* AtariStaticAnalyserTests.mm in Sources */ = {isa = PBXBuildFile; fileRef = 4B924E981E74D22700B76AF1 /* AtariStaticAnalyserTests.mm */; };
|
||||
4B9252CE1E74D28200B76AF1 /* Atari ROMs in Resources */ = {isa = PBXBuildFile; fileRef = 4B9252CD1E74D28200B76AF1 /* Atari ROMs */; };
|
||||
4B92EACA1B7C112B00246143 /* 6502TimingTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B92EAC91B7C112B00246143 /* 6502TimingTests.swift */; };
|
||||
4B95FA9D1F11893B0008E395 /* ZX8081OptionsPanel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B95FA9C1F11893B0008E395 /* ZX8081OptionsPanel.swift */; };
|
||||
4B96F7221D75119A0058BB2D /* Tape.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B96F7201D75119A0058BB2D /* Tape.cpp */; };
|
||||
4B9CCDA11DA279CA0098B625 /* Vic20OptionsPanel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B9CCDA01DA279CA0098B625 /* Vic20OptionsPanel.swift */; };
|
||||
4BA0F68E1EEA0E8400E9489E /* ZX8081.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BA0F68C1EEA0E8400E9489E /* ZX8081.cpp */; };
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||||
@ -609,6 +610,7 @@
|
||||
4B924E981E74D22700B76AF1 /* AtariStaticAnalyserTests.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = AtariStaticAnalyserTests.mm; sourceTree = "<group>"; };
|
||||
4B9252CD1E74D28200B76AF1 /* Atari ROMs */ = {isa = PBXFileReference; lastKnownFileType = folder; path = "Atari ROMs"; sourceTree = "<group>"; };
|
||||
4B92EAC91B7C112B00246143 /* 6502TimingTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = 6502TimingTests.swift; sourceTree = "<group>"; };
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||||
4B95FA9C1F11893B0008E395 /* ZX8081OptionsPanel.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ZX8081OptionsPanel.swift; sourceTree = "<group>"; };
|
||||
4B96F7201D75119A0058BB2D /* Tape.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Tape.cpp; path = ../../StaticAnalyser/Acorn/Tape.cpp; sourceTree = "<group>"; };
|
||||
4B96F7211D75119A0058BB2D /* Tape.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = Tape.hpp; path = ../../StaticAnalyser/Acorn/Tape.hpp; sourceTree = "<group>"; };
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||||
4B9CCDA01DA279CA0098B625 /* Vic20OptionsPanel.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Vic20OptionsPanel.swift; sourceTree = "<group>"; };
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||||
@ -1312,6 +1314,7 @@
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||||
4B8FE2211DA19FB20090D3CE /* MachinePanel.swift */,
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||||
4B2A332E1DB86869002876E3 /* OricOptionsPanel.swift */,
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||||
4B9CCDA01DA279CA0098B625 /* Vic20OptionsPanel.swift */,
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||||
4B95FA9C1F11893B0008E395 /* ZX8081OptionsPanel.swift */,
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||||
4B8FE2131DA19D5F0090D3CE /* Atari2600Options.xib */,
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||||
4B8FE2171DA19D5F0090D3CE /* ElectronOptions.xib */,
|
||||
4B8FE2151DA19D5F0090D3CE /* MachineDocument.xib */,
|
||||
@ -2566,6 +2569,7 @@
|
||||
4BD4A8CD1E077E8A0020D856 /* PCMSegment.cpp in Sources */,
|
||||
4BD14B111D74627C0088EAD6 /* StaticAnalyser.cpp in Sources */,
|
||||
4BBF99151C8FBA6F0075DAFB /* CRTOpenGL.cpp in Sources */,
|
||||
4B95FA9D1F11893B0008E395 /* ZX8081OptionsPanel.swift in Sources */,
|
||||
4B0CCC451C62D0B3001CAC5F /* CRT.cpp in Sources */,
|
||||
4BCF1FA41DADC3DD0039D2E7 /* Oric.cpp in Sources */,
|
||||
4BEA525E1DF33323007E74F2 /* Tape.cpp in Sources */,
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||||
|
||||
@ -1,7 +1,7 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="12120" systemVersion="16F73" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
|
||||
<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="12121" systemVersion="16F73" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
|
||||
<dependencies>
|
||||
<plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="12120"/>
|
||||
<plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="12121"/>
|
||||
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
|
||||
</dependencies>
|
||||
<objects>
|
||||
@ -12,17 +12,17 @@
|
||||
</customObject>
|
||||
<customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
|
||||
<customObject id="-3" userLabel="Application" customClass="NSObject"/>
|
||||
<window title="Options" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" hidesOnDeactivate="YES" oneShot="NO" releasedWhenClosed="NO" showsToolbarButton="NO" visibleAtLaunch="NO" frameAutosaveName="" animationBehavior="default" id="ota-g7-hOL" customClass="MachinePanel" customModule="Clock_Signal" customModuleProvider="target">
|
||||
<window title="Options" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" hidesOnDeactivate="YES" oneShot="NO" releasedWhenClosed="NO" showsToolbarButton="NO" visibleAtLaunch="NO" frameAutosaveName="" animationBehavior="default" id="ota-g7-hOL" customClass="ZX8081OptionsPanel" customModule="Clock_Signal" customModuleProvider="target">
|
||||
<windowStyleMask key="styleMask" titled="YES" closable="YES" utility="YES" nonactivatingPanel="YES" HUD="YES"/>
|
||||
<windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
|
||||
<rect key="contentRect" x="83" y="102" width="200" height="54"/>
|
||||
<rect key="contentRect" x="83" y="102" width="261" height="100"/>
|
||||
<rect key="screenRect" x="0.0" y="0.0" width="1366" height="768"/>
|
||||
<view key="contentView" id="7Pv-WL-2Rq">
|
||||
<rect key="frame" x="0.0" y="0.0" width="200" height="54"/>
|
||||
<rect key="frame" x="0.0" y="0.0" width="261" height="100"/>
|
||||
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
|
||||
<subviews>
|
||||
<button translatesAutoresizingMaskIntoConstraints="NO" id="sBT-cU-h7s">
|
||||
<rect key="frame" x="18" y="18" width="164" height="18"/>
|
||||
<rect key="frame" x="18" y="64" width="225" height="18"/>
|
||||
<buttonCell key="cell" type="check" title="Load Tapes Quickly" bezelStyle="regularSquare" imagePosition="left" alignment="left" state="on" inset="2" id="w0l-ha-esm">
|
||||
<behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
|
||||
<font key="font" metaFont="system"/>
|
||||
@ -31,18 +31,46 @@
|
||||
<action selector="setFastLoading:" target="ota-g7-hOL" id="me0-h2-Ga5"/>
|
||||
</connections>
|
||||
</button>
|
||||
<button translatesAutoresizingMaskIntoConstraints="NO" id="qSb-72-6Os">
|
||||
<rect key="frame" x="18" y="44" width="225" height="18"/>
|
||||
<buttonCell key="cell" type="check" title="Control Tape Motor Automatically" bezelStyle="regularSquare" imagePosition="left" state="on" inset="2" id="CzC-YT-lgA">
|
||||
<behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
|
||||
<font key="font" metaFont="system"/>
|
||||
</buttonCell>
|
||||
<connections>
|
||||
<action selector="setAutomaticTapeMotorConrol:" target="ota-g7-hOL" id="bpF-1P-tga"/>
|
||||
</connections>
|
||||
</button>
|
||||
<button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="tkN-gI-RmT">
|
||||
<rect key="frame" x="20" y="19" width="221" height="19"/>
|
||||
<buttonCell key="cell" type="roundRect" title="Play Tape" bezelStyle="roundedRect" alignment="center" enabled="NO" state="on" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="cTq-f9-Gzx">
|
||||
<behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
|
||||
<font key="font" metaFont="cellTitle"/>
|
||||
</buttonCell>
|
||||
<connections>
|
||||
<action selector="playOrPauseTape:" target="ota-g7-hOL" id="O0K-pL-nOr"/>
|
||||
</connections>
|
||||
</button>
|
||||
</subviews>
|
||||
<constraints>
|
||||
<constraint firstItem="qSb-72-6Os" firstAttribute="leading" secondItem="7Pv-WL-2Rq" secondAttribute="leading" constant="20" id="05p-Jn-ueX"/>
|
||||
<constraint firstAttribute="trailing" secondItem="sBT-cU-h7s" secondAttribute="trailing" constant="20" id="79b-2A-2c7"/>
|
||||
<constraint firstItem="sBT-cU-h7s" firstAttribute="top" secondItem="7Pv-WL-2Rq" secondAttribute="top" constant="20" id="E5m-wo-X92"/>
|
||||
<constraint firstAttribute="bottom" secondItem="sBT-cU-h7s" secondAttribute="bottom" constant="20" id="eZe-Eu-INg"/>
|
||||
<constraint firstItem="qSb-72-6Os" firstAttribute="top" secondItem="sBT-cU-h7s" secondAttribute="bottom" constant="6" id="WxD-kP-vwf"/>
|
||||
<constraint firstAttribute="bottom" secondItem="tkN-gI-RmT" secondAttribute="bottom" constant="20" id="Xnu-On-nOA"/>
|
||||
<constraint firstItem="tkN-gI-RmT" firstAttribute="leading" secondItem="7Pv-WL-2Rq" secondAttribute="leading" constant="20" id="fHf-K0-PsU"/>
|
||||
<constraint firstItem="tkN-gI-RmT" firstAttribute="top" secondItem="qSb-72-6Os" secondAttribute="bottom" constant="8" id="gLh-vE-Cqk"/>
|
||||
<constraint firstAttribute="trailing" secondItem="qSb-72-6Os" secondAttribute="trailing" constant="20" id="mQz-p8-aYf"/>
|
||||
<constraint firstItem="sBT-cU-h7s" firstAttribute="leading" secondItem="7Pv-WL-2Rq" secondAttribute="leading" constant="20" id="nDy-Xc-Ug9"/>
|
||||
<constraint firstAttribute="trailing" secondItem="tkN-gI-RmT" secondAttribute="trailing" constant="20" id="vgD-A3-m6T"/>
|
||||
</constraints>
|
||||
</view>
|
||||
<connections>
|
||||
<outlet property="automaticTapeMotorControlButton" destination="qSb-72-6Os" id="bB6-FP-TKM"/>
|
||||
<outlet property="fastLoadingButton" destination="sBT-cU-h7s" id="uWa-EB-mbd"/>
|
||||
<outlet property="playOrPauseTapeButton" destination="tkN-gI-RmT" id="UnJ-nb-3mv"/>
|
||||
</connections>
|
||||
<point key="canvasLocation" x="-2" y="-8"/>
|
||||
<point key="canvasLocation" x="28.5" y="15"/>
|
||||
</window>
|
||||
</objects>
|
||||
</document>
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
#import "CSElectron.h"
|
||||
#import "CSOric.h"
|
||||
#import "CSVic20.h"
|
||||
#import "CSZX8081.h"
|
||||
|
||||
#import "CSStaticAnalyser.h"
|
||||
|
||||
|
||||
@ -0,0 +1,49 @@
|
||||
//
|
||||
// ZX8081OptionsPanel.swift
|
||||
// Clock Signal
|
||||
//
|
||||
// Created by Thomas Harte on 08/07/2017.
|
||||
// Copyright © 2017 Thomas Harte. All rights reserved.
|
||||
//
|
||||
|
||||
class ZX8081OptionsPanel: MachinePanel {
|
||||
var zx8081: CSZX8081! {
|
||||
get {
|
||||
return self.machine as! CSZX8081
|
||||
}
|
||||
}
|
||||
|
||||
@IBOutlet var automaticTapeMotorControlButton: NSButton!
|
||||
var automaticTapeMotorControlDefaultsKey: String {
|
||||
get { return prefixedUserDefaultsKey("automaticTapeMotorControl") }
|
||||
}
|
||||
@IBAction func setAutomaticTapeMotorConrol(_ sender: NSButton!) {
|
||||
let isEnabled = sender.state == NSOnState
|
||||
UserDefaults.standard.set(isEnabled, forKey: self.automaticTapeMotorControlDefaultsKey)
|
||||
self.playOrPauseTapeButton.isEnabled = !isEnabled
|
||||
self.zx8081.useAutomaticTapeMotorControl = isEnabled
|
||||
}
|
||||
|
||||
@IBOutlet var playOrPauseTapeButton: NSButton!
|
||||
@IBAction func playOrPauseTape(_ sender: NSButton!) {
|
||||
self.zx8081.tapeIsPlaying = !self.zx8081.tapeIsPlaying
|
||||
self.playOrPauseTapeButton.title = self.zx8081.tapeIsPlaying
|
||||
? NSLocalizedString("Stop Tape", comment: "Text for a button that will stop tape playback")
|
||||
: NSLocalizedString("Play Tape", comment: "Text for a button that will start tape playback")
|
||||
}
|
||||
|
||||
// MARK: option restoration
|
||||
override func establishStoredOptions() {
|
||||
super.establishStoredOptions()
|
||||
|
||||
let standardUserDefaults = UserDefaults.standard
|
||||
standardUserDefaults.register(defaults: [
|
||||
self.automaticTapeMotorControlDefaultsKey: true
|
||||
])
|
||||
|
||||
let automaticTapeMotorControlIsEnabled = standardUserDefaults.bool(forKey: self.automaticTapeMotorControlDefaultsKey)
|
||||
self.automaticTapeMotorControlButton.state = automaticTapeMotorControlIsEnabled ? NSOnState : NSOffState
|
||||
self.playOrPauseTapeButton.isEnabled = !automaticTapeMotorControlIsEnabled
|
||||
self.zx8081.useAutomaticTapeMotorControl = automaticTapeMotorControlIsEnabled
|
||||
}
|
||||
}
|
||||
@ -14,4 +14,7 @@
|
||||
|
||||
@property (nonatomic, assign) BOOL useFastLoadingHack;
|
||||
|
||||
@property (nonatomic, assign) BOOL useAutomaticTapeMotorControl;
|
||||
@property (nonatomic, assign) BOOL tapeIsPlaying;
|
||||
|
||||
@end
|
||||
|
||||
@ -110,4 +110,18 @@
|
||||
}
|
||||
}
|
||||
|
||||
- (void)setTapeIsPlaying:(BOOL)tapeIsPlaying {
|
||||
@synchronized(self) {
|
||||
_tapeIsPlaying = tapeIsPlaying;
|
||||
_zx8081.set_tape_is_playing(tapeIsPlaying ? true : false);
|
||||
}
|
||||
}
|
||||
|
||||
- (void)setUseAutomaticTapeMotorControl:(BOOL)useAutomaticTapeMotorControl {
|
||||
@synchronized(self) {
|
||||
_useAutomaticTapeMotorControl = useAutomaticTapeMotorControl;
|
||||
_zx8081.set_use_automatic_tape_motor_control(useAutomaticTapeMotorControl ? true : false);
|
||||
}
|
||||
}
|
||||
|
||||
@end
|
||||
|
||||
@ -8,9 +8,10 @@
|
||||
|
||||
#include "CRT.hpp"
|
||||
#include "CRTOpenGL.hpp"
|
||||
#include <stdarg.h>
|
||||
#include <math.h>
|
||||
#include <cstdarg>
|
||||
#include <cmath>
|
||||
#include <algorithm>
|
||||
#include <cassert>
|
||||
|
||||
using namespace Outputs::CRT;
|
||||
|
||||
@ -144,6 +145,7 @@ void CRT::advance_cycles(unsigned int number_of_cycles, bool hsync_requested, bo
|
||||
|
||||
if(next_run) {
|
||||
// output_y and texture locations will be written later; we won't necessarily know what it is outside of the locked region
|
||||
openGL_output_builder_.texture_builder.retain_latest();
|
||||
source_output_position_x1() = (uint16_t)horizontal_flywheel_->get_current_output_position();
|
||||
source_phase() = colour_burst_phase_;
|
||||
source_amplitude() = colour_burst_amplitude_;
|
||||
@ -192,9 +194,10 @@ void CRT::advance_cycles(unsigned int number_of_cycles, bool hsync_requested, bo
|
||||
output_x2() = (uint16_t)horizontal_flywheel_->get_current_output_position();
|
||||
}
|
||||
openGL_output_builder_.array_builder.flush(
|
||||
[output_y, this] (uint8_t *input_buffer, size_t input_size, uint8_t *output_buffer, size_t output_size) {
|
||||
[=] (uint8_t *input_buffer, size_t input_size, uint8_t *output_buffer, size_t output_size) {
|
||||
openGL_output_builder_.texture_builder.flush(
|
||||
[output_y, input_buffer] (const std::vector<TextureBuilder::WriteArea> &write_areas, size_t number_of_write_areas) {
|
||||
[=] (const std::vector<TextureBuilder::WriteArea> &write_areas, size_t number_of_write_areas) {
|
||||
assert(number_of_write_areas * SourceVertexSize == input_size);
|
||||
for(size_t run = 0; run < number_of_write_areas; run++) {
|
||||
*(uint16_t *)&input_buffer[run * SourceVertexSize + SourceVertexOffsetOfInputStart + 0] = write_areas[run].x;
|
||||
*(uint16_t *)&input_buffer[run * SourceVertexSize + SourceVertexOffsetOfInputStart + 2] = write_areas[run].y;
|
||||
@ -311,6 +314,7 @@ void CRT::output_blank(unsigned int number_of_cycles) {
|
||||
}
|
||||
|
||||
void CRT::output_level(unsigned int number_of_cycles) {
|
||||
openGL_output_builder_.texture_builder.reduce_previous_allocation_to(1);
|
||||
Scan scan {
|
||||
.type = Scan::Type::Level,
|
||||
.number_of_cycles = number_of_cycles,
|
||||
@ -329,13 +333,7 @@ void CRT::output_colour_burst(unsigned int number_of_cycles, uint8_t phase, uint
|
||||
}
|
||||
|
||||
void CRT::output_default_colour_burst(unsigned int number_of_cycles) {
|
||||
Scan scan {
|
||||
.type = Scan::Type::ColourBurst,
|
||||
.number_of_cycles = number_of_cycles,
|
||||
.phase = (uint8_t)((phase_numerator_ * 256) / phase_denominator_ + (is_alernate_line_ ? 128 : 0)),
|
||||
.amplitude = 32
|
||||
};
|
||||
output_scan(&scan);
|
||||
output_colour_burst(number_of_cycles, (uint8_t)((phase_numerator_ * 256) / phase_denominator_ + (is_alernate_line_ ? 128 : 0)));
|
||||
}
|
||||
|
||||
void CRT::output_data(unsigned int number_of_cycles, unsigned int source_divider) {
|
||||
|
||||
@ -187,7 +187,7 @@ class CRT {
|
||||
@param amplitude The amplitude of the colour burst in 1/256ths of the amplitude of the
|
||||
positive portion of the wave.
|
||||
*/
|
||||
void output_colour_burst(unsigned int number_of_cycles, uint8_t phase, uint8_t amplitude);
|
||||
void output_colour_burst(unsigned int number_of_cycles, uint8_t phase, uint8_t amplitude = 102);
|
||||
|
||||
/*! Outputs a colour burst exactly in phase with CRT expectations using the idiomatic amplitude.
|
||||
|
||||
|
||||
@ -39,7 +39,6 @@ TextureBuilder::TextureBuilder(size_t bytes_per_pixel, GLenum texture_unit) :
|
||||
write_areas_start_y_(0),
|
||||
is_full_(false),
|
||||
did_submit_(false),
|
||||
has_write_area_(false),
|
||||
number_of_write_areas_(0) {
|
||||
image_.resize(bytes_per_pixel * InputBufferBuilderWidth * InputBufferBuilderHeight);
|
||||
glGenTextures(1, &texture_name_);
|
||||
@ -74,7 +73,6 @@ uint8_t *TextureBuilder::allocate_write_area(size_t required_length) {
|
||||
starting_y = write_areas_[number_of_write_areas_ - 1].y;
|
||||
}
|
||||
|
||||
WriteArea next_write_area;
|
||||
if(starting_x + required_length + 2 > InputBufferBuilderWidth) {
|
||||
starting_x = 0;
|
||||
starting_y++;
|
||||
@ -85,33 +83,34 @@ uint8_t *TextureBuilder::allocate_write_area(size_t required_length) {
|
||||
}
|
||||
}
|
||||
|
||||
next_write_area.x = starting_x + 1;
|
||||
next_write_area.y = starting_y;
|
||||
next_write_area.length = (uint16_t)required_length;
|
||||
if(number_of_write_areas_ < write_areas_.size())
|
||||
write_areas_[number_of_write_areas_] = next_write_area;
|
||||
else
|
||||
write_areas_.push_back(next_write_area);
|
||||
number_of_write_areas_++;
|
||||
has_write_area_ = true;
|
||||
write_area_.x = starting_x + 1;
|
||||
write_area_.y = starting_y;
|
||||
write_area_.length = (uint16_t)required_length;
|
||||
|
||||
return pointer_to_location(next_write_area.x, next_write_area.y);
|
||||
return pointer_to_location(write_area_.x, write_area_.y);
|
||||
}
|
||||
|
||||
bool TextureBuilder::is_full() {
|
||||
return is_full_;
|
||||
}
|
||||
|
||||
void TextureBuilder::reduce_previous_allocation_to(size_t actual_length) {
|
||||
if(is_full_ || !has_write_area_) return;
|
||||
void TextureBuilder::retain_latest() {
|
||||
if(is_full_) return;
|
||||
if(number_of_write_areas_ < write_areas_.size())
|
||||
write_areas_[number_of_write_areas_] = write_area_;
|
||||
else
|
||||
write_areas_.push_back(write_area_);
|
||||
number_of_write_areas_++;
|
||||
}
|
||||
|
||||
has_write_area_ = false;
|
||||
WriteArea &write_area = write_areas_[number_of_write_areas_-1];
|
||||
write_area.length = (uint16_t)actual_length;
|
||||
void TextureBuilder::reduce_previous_allocation_to(size_t actual_length) {
|
||||
if(is_full_) return;
|
||||
|
||||
write_area_.length = (uint16_t)actual_length;
|
||||
|
||||
// book end the allocation with duplicates of the first and last pixel, to protect
|
||||
// against rounding errors when this run is drawn
|
||||
uint8_t *start_pointer = pointer_to_location(write_area.x, write_area.y);
|
||||
uint8_t *start_pointer = pointer_to_location(write_area_.x, write_area_.y);
|
||||
memcpy( &start_pointer[-bytes_per_pixel_],
|
||||
start_pointer,
|
||||
bytes_per_pixel_);
|
||||
@ -172,6 +171,5 @@ void TextureBuilder::flush(const std::function<void(const std::vector<WriteArea>
|
||||
}
|
||||
|
||||
did_submit_ = false;
|
||||
has_write_area_ = false;
|
||||
number_of_write_areas_ = 0;
|
||||
}
|
||||
|
||||
@ -24,6 +24,32 @@ namespace CRT {
|
||||
Owns an OpenGL texture resource and provides mechanisms to fill it from bottom left to top right
|
||||
with runs of data, ensuring each run is neighboured immediately to the left and right by copies of its
|
||||
first and last pixels.
|
||||
|
||||
Intended usage:
|
||||
|
||||
(i) allocate a write area with allocate_write_area, supplying a maximum size.
|
||||
(ii) call reduce_previous_allocation_to to announce the actual size written.
|
||||
|
||||
This will cause you to have added source data to the target texture. You can then either use that data
|
||||
or allow it to expire.
|
||||
|
||||
(iii) call retain_latest to add the most recently written write area to the flush queue.
|
||||
|
||||
The flush queue contains provisional data, that can sit in the CPU's memory space indefinitely. This facility
|
||||
is provided because it is expected that a texture will be built alontside some other collection of data —
|
||||
that data in the flush queue is expected to become useful in coordination with something else but should
|
||||
be retained at least until then.
|
||||
|
||||
(iv) call flush to move data to the submit queue.
|
||||
|
||||
When you flush, you'll receive a record of the bounds of all newly-flushed areas of source data. That gives
|
||||
an opportunity to correlate the data with whatever else it is being tied to. It will continue to sit in
|
||||
the CPU's memory space but has now passed beyond any further modification or reporting.
|
||||
|
||||
(v) call submit to move data to the GPU and free up its CPU-side resources.
|
||||
|
||||
The data is now on the GPU, for whatever use the caller desires.
|
||||
|
||||
*/
|
||||
class TextureBuilder {
|
||||
public:
|
||||
@ -41,6 +67,9 @@ class TextureBuilder {
|
||||
/// and indicates that its actual final size was @c actual_length.
|
||||
void reduce_previous_allocation_to(size_t actual_length);
|
||||
|
||||
/// Allocated runs are provisional; they will not appear in the next flush queue unless retained.
|
||||
void retain_latest();
|
||||
|
||||
/// @returns @c true if all future calls to @c allocate_write_area will fail on account of the input texture
|
||||
/// being full; @c false if calls may succeed.
|
||||
bool is_full();
|
||||
@ -64,12 +93,14 @@ class TextureBuilder {
|
||||
std::vector<uint8_t> image_;
|
||||
GLuint texture_name_;
|
||||
|
||||
// the current list of write areas
|
||||
// the current write area
|
||||
WriteArea write_area_;
|
||||
|
||||
// the list of write areas that have ascended to the flush queue
|
||||
std::vector<WriteArea> write_areas_;
|
||||
size_t number_of_write_areas_;
|
||||
bool is_full_;
|
||||
bool did_submit_;
|
||||
bool has_write_area_;
|
||||
inline uint8_t *pointer_to_location(uint16_t x, uint16_t y);
|
||||
|
||||
// Usually: the start position for the current batch of write areas.
|
||||
|
||||
@ -54,7 +54,7 @@ Tape::Pulse ZX80O81P::virtual_get_next_pulse() {
|
||||
// Start with 1 second of silence.
|
||||
if(!is_past_silence_ || has_finished_data()) {
|
||||
pulse.type = Pulse::Type::Low;
|
||||
pulse.length.length = 10;
|
||||
pulse.length.length = 1;
|
||||
pulse.length.clock_rate = 1;
|
||||
is_past_silence_ = true;
|
||||
has_ended_final_byte_ = has_finished_data();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user