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use core::iter::Empty;
use crate::clock::VideoTs;
use crate::chip::{UlaPortFlags, ula::frame_cache::UlaFrameCache};
use crate::memory::{ZxMemory, MemoryExtension};
use crate::video::{BorderColor, VideoFrame};
use super::{Ula, super::plus::{UlaPlusInner, VideoRenderDataView}};
impl<'a, M, B, X, V> UlaPlusInner<'a> for Ula<M, B, X, V>
where M: ZxMemory,
X: MemoryExtension,
V: VideoFrame
{
type ScreenSwapIter = Empty<VideoTs>;
fn is_ula_port(port: u16) -> bool {
port & 1 == 0
}
fn ula_write_earmic(&mut self, flags: UlaPortFlags, ts: VideoTs) {
self.ula_write_earmic(flags, ts)
}
fn push_screen_change(&mut self, _ts: VideoTs) {}
fn update_last_border_color(&mut self, border: BorderColor) -> bool {
if self.last_border != border {
self.last_border = border;
return true
}
false
}
fn page1_screen0_shadow_bank(&self) -> Option<bool> {
Some(false)
}
fn page1_screen1_shadow_bank(&self) -> Option<bool> {
Some(false)
}
fn page3_screen0_shadow_bank(&self) -> Option<bool> {
None
}
fn page3_screen1_shadow_bank(&self) -> Option<bool> {
None
}
fn frame_cache_mut_mem_ref(&mut self) -> (&mut UlaFrameCache<Self::VideoFrame>, &Self::Memory) {
(&mut self.frame_cache, &self.memory)
}
fn shadow_frame_cache_mut_mem_ref(&mut self) -> (&mut UlaFrameCache<Self::VideoFrame>, &Self::Memory) {
(&mut self.frame_cache, &self.memory)
}
fn beg_screen_shadow(&self) -> bool {
false
}
fn cur_screen_shadow(&self) -> bool {
false
}
fn video_render_data_view(
&mut self
) -> VideoRenderDataView<'_, Self::ScreenSwapIter, Self::Memory, Self::VideoFrame>
{
VideoRenderDataView {
screen_changes: core::iter::empty(),
memory: &self.memory,
frame_cache: &self.frame_cache,
frame_cache_shadow: &self.frame_cache
}
}
}