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Adopt normative public-then-private ordering.

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Thomas Harte
2025-10-06 13:28:04 -04:00
parent ab73b4de6b
commit 2496257bcf
1 changed files with 55 additions and 55 deletions
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110
Outputs/CRT/CRT.hpp
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@@ -54,61 +54,6 @@ struct Delegate {
colour phase for colour composite video. colour phase for colour composite video.
*/ */
class CRT { class CRT {
private:
// Incoming clock lengths are multiplied by @c time_multiplier_ to increase precision across the line.
int time_multiplier_ = 1;
// Two flywheels regulate scanning; the vertical with a range much greater than the horizontal.
Flywheel horizontal_flywheel_, vertical_flywheel_;
// A divider to reduce the vertcial flywheel into a 16-bit range.
int vertical_flywheel_output_divider_ = 1;
int cycles_since_horizontal_sync_ = 0;
/// Samples the flywheels to generate a raster endpoint, tagging it with the specified @c data_offset.
Display::ScanTarget::Scan::EndPoint end_point(uint16_t data_offset);
struct Scan {
enum Type {
Sync, Level, Data, Blank, ColourBurst
} type = Scan::Blank;
int number_of_cycles = 0, number_of_samples = 0;
uint8_t phase = 0, amplitude = 0;
};
void output_scan(const Scan &scan);
uint8_t colour_burst_amplitude_ = 30;
int colour_burst_phase_adjustment_ = 0xff;
int64_t phase_denominator_ = 1;
int64_t phase_numerator_ = 0;
int64_t colour_cycle_numerator_ = 1;
bool is_alternate_line_ = false, phase_alternates_ = false, should_be_alternate_line_ = false;
void advance_cycles(int number_of_cycles, bool hsync_requested, bool vsync_requested, const Scan::Type type, int number_of_samples);
Flywheel::SyncEvent get_next_vertical_sync_event(bool vsync_is_requested, int cycles_to_run_for, int *cycles_advanced);
Flywheel::SyncEvent get_next_horizontal_sync_event(bool hsync_is_requested, int cycles_to_run_for, int *cycles_advanced);
Delegate *delegate_ = nullptr;
int frames_since_last_delegate_call_ = 0;
bool is_receiving_sync_ = false; // @c true if the CRT is currently receiving sync (i.e. this is for edge triggering of horizontal sync); @c false otherwise.
bool is_accumulating_sync_ = false; // @c true if a sync level has triggered the suspicion that a vertical sync might be in progress; @c false otherwise.
bool is_refusing_sync_ = false; // @c true once a vertical sync has been detected, until a prolonged period of non-sync has ended suspicion of an ongoing vertical sync.
int sync_capacitor_charge_threshold_ = 0; // Charges up during times of sync and depletes otherwise; needs to hit a required threshold to trigger a vertical sync.
int cycles_of_sync_ = 0; // The number of cycles since the potential vertical sync began.
int cycles_since_sync_ = 0; // The number of cycles since last in sync, for defeating the possibility of this being a vertical sync.
int cycles_per_line_ = 1;
Outputs::Display::ScanTarget *scan_target_ = &Outputs::Display::NullScanTarget::singleton;
Outputs::Display::ScanTarget::Modals scan_target_modals_;
static constexpr uint8_t DefaultAmplitude = 41; // Based upon a black level to maximum excursion and positive burst peak of: NTSC: 882 & 143; PAL: 933 & 150.
#ifndef NDEBUG
size_t allocated_data_length_ = std::numeric_limits<size_t>::min();
#endif
public: public:
/*! Constructs the CRT with a specified clock rate, height and colour subcarrier frequency. /*! Constructs the CRT with a specified clock rate, height and colour subcarrier frequency.
The requested number of buffers, each with the requested number of bytes per pixel, The requested number of buffers, each with the requested number of bytes per pixel,
@@ -346,6 +291,61 @@ public:
/*! Sets the output brightness. */ /*! Sets the output brightness. */
void set_brightness(float); void set_brightness(float);
private:
// Incoming clock lengths are multiplied by @c time_multiplier_ to increase precision across the line.
int time_multiplier_ = 1;
// Two flywheels regulate scanning; the vertical with a range much greater than the horizontal.
Flywheel horizontal_flywheel_, vertical_flywheel_;
// A divider to reduce the vertcial flywheel into a 16-bit range.
int vertical_flywheel_output_divider_ = 1;
int cycles_since_horizontal_sync_ = 0;
/// Samples the flywheels to generate a raster endpoint, tagging it with the specified @c data_offset.
Display::ScanTarget::Scan::EndPoint end_point(uint16_t data_offset);
struct Scan {
enum Type {
Sync, Level, Data, Blank, ColourBurst
} type = Scan::Blank;
int number_of_cycles = 0, number_of_samples = 0;
uint8_t phase = 0, amplitude = 0;
};
void output_scan(const Scan &scan);
uint8_t colour_burst_amplitude_ = 30;
int colour_burst_phase_adjustment_ = 0xff;
int64_t phase_denominator_ = 1;
int64_t phase_numerator_ = 0;
int64_t colour_cycle_numerator_ = 1;
bool is_alternate_line_ = false, phase_alternates_ = false, should_be_alternate_line_ = false;
void advance_cycles(int number_of_cycles, bool hsync_requested, bool vsync_requested, const Scan::Type type, int number_of_samples);
Flywheel::SyncEvent get_next_vertical_sync_event(bool vsync_is_requested, int cycles_to_run_for, int *cycles_advanced);
Flywheel::SyncEvent get_next_horizontal_sync_event(bool hsync_is_requested, int cycles_to_run_for, int *cycles_advanced);
Delegate *delegate_ = nullptr;
int frames_since_last_delegate_call_ = 0;
bool is_receiving_sync_ = false; // @c true if the CRT is currently receiving sync (i.e. this is for edge triggering of horizontal sync); @c false otherwise.
bool is_accumulating_sync_ = false; // @c true if a sync level has triggered the suspicion that a vertical sync might be in progress; @c false otherwise.
bool is_refusing_sync_ = false; // @c true once a vertical sync has been detected, until a prolonged period of non-sync has ended suspicion of an ongoing vertical sync.
int sync_capacitor_charge_threshold_ = 0; // Charges up during times of sync and depletes otherwise; needs to hit a required threshold to trigger a vertical sync.
int cycles_of_sync_ = 0; // The number of cycles since the potential vertical sync began.
int cycles_since_sync_ = 0; // The number of cycles since last in sync, for defeating the possibility of this being a vertical sync.
int cycles_per_line_ = 1;
Outputs::Display::ScanTarget *scan_target_ = &Outputs::Display::NullScanTarget::singleton;
Outputs::Display::ScanTarget::Modals scan_target_modals_;
static constexpr uint8_t DefaultAmplitude = 41; // Based upon a black level to maximum excursion and positive burst peak of: NTSC: 882 & 143; PAL: 933 & 150.
#ifndef NDEBUG
size_t allocated_data_length_ = std::numeric_limits<size_t>::min();
#endif
}; };
} }