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use std::vec::Drain;
use crate::memory::ZxMemory;
use crate::clock::{VideoTs, VideoTsData2, VideoTsData6, VFrameTsCounter};
use crate::video::{
RendererPlus, PaletteChange, BorderSize, BorderColor, PixelBuffer, Palette, Video,
frame_cache::{
pixel_address_coords, color_address_coords
}
};
use super::{
UlaPlus, UlaPlusInner, VideoRenderDataView, UlaFrameCache,
frame_cache::PlusFrameProducer
};
impl<U> Video for UlaPlus<U>
where U: for<'a> UlaPlusInner<'a>
{
const PIXEL_DENSITY: u32 = 2;
type VideoFrame = U::VideoFrame;
type Contention = U::Contention;
#[inline]
fn border_color(&self) -> BorderColor {
self.ula.border_color()
}
fn set_border_color(&mut self, border: BorderColor) {
self.change_border_color(border, self.ula.current_video_ts())
}
fn render_video_frame<'b, B: PixelBuffer<'b>, P: Palette<Pixel=B::Pixel>>(
&mut self,
buffer: &'b mut [u8],
pitch: usize,
border_size: BorderSize
)
{
let renderer = self.create_renderer(border_size);
renderer.render_pixels::<B, P, U::VideoFrame>(buffer, pitch);
}
fn current_video_ts(&self) -> VideoTs {
self.ula.current_video_ts()
}
fn visible_screen_bank(&self) -> usize {
(self.cur_source_mode.is_shadow_bank() ^ self.ula.cur_screen_shadow()).into()
}
fn current_video_clock(&self) -> VFrameTsCounter<Self::VideoFrame, Self::Contention> {
self.ula.current_video_clock()
}
fn set_video_ts(&mut self, vts: VideoTs) {
self.ula.set_video_ts(vts);
}
fn flash_state(&self) -> bool {
self.ula.flash_state()
}
}
impl<'a, U> UlaPlus<U>
where U: UlaPlusInner<'a>
{
#[inline]
pub(super) fn update_frame_cache(&mut self, addr: u16, ts: VideoTs) {
let (frame_cache, memory_ref): (&mut UlaFrameCache<_>, _) = match addr {
0x4000..=0x5AFF => match self.ula.page1_screen0_shadow_bank() {
Some(false) => self.ula.frame_cache_mut_mem_ref(),
Some(true) => self.ula.shadow_frame_cache_mut_mem_ref(),
None => return
}
0x6000..=0x7AFF => match self.ula.page1_screen1_shadow_bank() {
Some(false) => (&mut self.sec_frame_cache, self.ula.memory_ref()),
Some(true) => (&mut self.shadow_sec_frame_cache, self.ula.memory_ref()),
None => return
}
0xC000..=0xDAFF => match self.ula.page3_screen0_shadow_bank() {
Some(false) => self.ula.frame_cache_mut_mem_ref(),
Some(true) => self.ula.shadow_frame_cache_mut_mem_ref(),
None => return
}
0xE000..=0xFAFF => match self.ula.page3_screen1_shadow_bank() {
Some(false) => (&mut self.sec_frame_cache, self.ula.memory_ref()),
Some(true) => (&mut self.shadow_sec_frame_cache, self.ula.memory_ref()),
None => return
}
_ => return
};
if addr & 0x1800 != 0x1800 {
let coords = pixel_address_coords(addr);
frame_cache.update_frame_pixels(memory_ref, coords, addr, ts);
}
else {
let coords = color_address_coords(addr);
frame_cache.update_frame_colors(memory_ref, coords, addr, ts);
}
}
#[allow(clippy::type_complexity)]
fn create_renderer(
&'a mut self,
border_size: BorderSize,
) -> RendererPlus<'a,
PlusFrameProducer<'a,
U::VideoFrame,
Drain<'a, VideoTsData2>,
<U as UlaPlusInner<'a>>::ScreenSwapIter>,
Drain<'a, VideoTsData6>,
Drain<'a, PaletteChange>>
{
let invert_flash = self.ula.flash_state();
let render_mode = self.beg_render_mode;
let source_mode = self.beg_source_mode;
let swap_screens = source_mode.is_shadow_bank() ^ self.ula.beg_screen_shadow();
let VideoRenderDataView {
screen_changes,
memory,
frame_cache: frame_cache0,
frame_cache_shadow: frame_cache_shadow0
} = self.ula.video_render_data_view();
let (s0p0, s0p1, s1p0, s1p1) = match U::Memory::SCR_BANKS_MAX {
3 => (0, 1, 2, 3),
1 => (0, 0, 1, 1),
_ => panic!("unexpected number of screen banks")
};
let screen0 = memory.screen_ref(s0p0).unwrap();
let screen_shadow0 = memory.screen_ref(s0p1).unwrap();
let screen1 = memory.screen_ref(s1p0).unwrap();
let screen_shadow1 = memory.screen_ref(s1p1).unwrap();
let palette = &mut self.beg_palette;
let frame_cache1 = &mut self.sec_frame_cache;
let frame_cache_shadow1 = &mut self.shadow_sec_frame_cache;
let frame_image_producer = PlusFrameProducer::new(
swap_screens,
source_mode,
screen0, frame_cache0,
screen1, frame_cache1,
screen_shadow0, frame_cache_shadow0,
screen_shadow1, frame_cache_shadow1,
screen_changes,
self.source_changes.drain(..));
RendererPlus {
render_mode,
palette,
frame_image_producer,
mode_changes: self.mode_changes.drain(..),
palette_changes: self.palette_changes.drain(..),
border_size,
invert_flash
}
}
}