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On further reflection, I think events should occur after the running period.

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I'm testing this now for sanity in 2/4bpp mode.
This commit is contained in:
Thomas Harte 2020-01-28 23:26:37 -05:00
parent 1b27eedf6b
commit 0e29c6b0ab
2 changed files with 25 additions and 23 deletions
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2
Machines/Atari/ST/AtariST.cpp
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@ -567,7 +567,7 @@ class ConcreteMachine:
GPIP 0: centronics busy
*/
mfp_->set_port_input(
0x00 | // b7: Monochrome monitor detect (0 = is monochrome).
0x80 | // b7: Monochrome monitor detect (0 = is monochrome).
0x40 | // b6: RS-232 ring indicator.
(dma_->get_interrupt_line() ? 0x00 : 0x20) | // b5: FD/HS interrupt (0 = interrupt requested).
((keyboard_acia_->get_interrupt_line() || midi_acia_->get_interrupt_line()) ? 0x00 : 0x10) | // b4: Keyboard/MIDI interrupt (0 = interrupt requested).

46
Machines/Atari/ST/Video.cpp
View File

@ -120,13 +120,13 @@ const int vsync_delay_period = hsync_delay_period; // Signal vsync with the same
Video::Video() :
deferrer_([=] (HalfCycles duration) { advance(duration); }),
// crt_(2048, 2, Outputs::Display::Type::PAL50, Outputs::Display::InputDataType::Red4Green4Blue4),
crt_(896, 1, 500, Outputs::Display::ColourSpace::YIQ, 100, 50, 5, false, Outputs::Display::InputDataType::Red4Green4Blue4),
crt_(2048, 2, Outputs::Display::Type::PAL50, Outputs::Display::InputDataType::Red4Green4Blue4),
// crt_(896, 1, 500, Outputs::Display::ColourSpace::YIQ, 100, 50, 5, false, Outputs::Display::InputDataType::Red4Green4Blue4),
video_stream_(crt_, palette_) {
// Show a total of 260 lines; a little short for PAL but a compromise between that and the ST's
// usual output height of 200 lines.
// crt_.set_visible_area(crt_.get_rect_for_area(33, 260, 440, 1700, 4.0f / 3.0f));
crt_.set_visible_area(crt_.get_rect_for_area(33, 260, 440, 1700, 4.0f / 3.0f));
}
void Video::set_ram(uint16_t *ram, size_t size) {
@ -154,25 +154,6 @@ void Video::advance(HalfCycles duration) {
const auto vertical_timings = vertical_parameters(field_frequency_);
int integer_duration = int(duration.as_integral());
// Effect any changes in visible state out here; they're not relevant in the inner loop.
if(!pending_events_.empty()) {
auto erase_iterator = pending_events_.begin();
int duration_remaining = integer_duration;
while(erase_iterator != pending_events_.end()) {
erase_iterator->delay -= duration_remaining;
if(erase_iterator->delay <= 0) {
duration_remaining = -erase_iterator->delay;
erase_iterator->apply(public_state_);
++erase_iterator;
} else {
break;
}
}
if(erase_iterator != pending_events_.begin()) {
pending_events_.erase(pending_events_.begin(), erase_iterator);
}
}
while(integer_duration) {
// Seed next event to end of line.
int next_event = line_length_.length;
@ -362,6 +343,27 @@ void Video::advance(HalfCycles duration) {
add_event(vsync_delay_period - integer_duration, vertical_.sync ? Event::Type::SetVsync : Event::Type::ResetVsync);
}
}
// Effect any changes in visible state out here; they've been supplied as sequence points, so
// a conforming caller can't hit them within the inner loop.
integer_duration = int(duration.as_integral());
if(!pending_events_.empty()) {
auto erase_iterator = pending_events_.begin();
int duration_remaining = integer_duration;
while(erase_iterator != pending_events_.end()) {
erase_iterator->delay -= duration_remaining;
if(erase_iterator->delay <= 0) {
duration_remaining = -erase_iterator->delay;
erase_iterator->apply(public_state_);
++erase_iterator;
} else {
break;
}
}
if(erase_iterator != pending_events_.begin()) {
pending_events_.erase(pending_events_.begin(), erase_iterator);
}
}
}
void Video::push_latched_data() {