106 lines
3 KiB
Rust
106 lines
3 KiB
Rust
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use sdl2::event::Event;
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use sdl2::pixels::Color;
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use sdl2::rect::{Point, Rect};
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use sdl2::render::Canvas;
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use crate::arm7tdmi::bus::Bus;
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use crate::gba::GameBoyAdvance;
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use crate::ioregs::consts::*;
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use crate::lcd::*;
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use crate::palette::*;
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use crate::sysbus::SysBus;
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impl Into<Color> for Rgb15 {
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fn into(self) -> Color {
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let (r, g, b) = self.get_rgb24();
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Color::RGB(r, g, b)
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}
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}
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fn draw_tile(
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gba: &GameBoyAdvance,
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tile_addr: u32,
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pixel_format: PixelFormat,
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p: Point,
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canvas: &mut Canvas<sdl2::video::Window>,
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) {
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for y in 0..8 {
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for x in 0..8 {
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let color = match pixel_format {
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PixelFormat::BPP4 => {
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let index =
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gba.lcd
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.read_pixel_index(&gba.sysbus, tile_addr, x, y, 4, pixel_format);
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gba.lcd.get_palette_color(&gba.sysbus, index as u32, 0)
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}
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PixelFormat::BPP8 => {
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let index =
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gba.lcd
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.read_pixel_index(&gba.sysbus, tile_addr, x, y, 8, pixel_format);
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gba.lcd.get_palette_color(&gba.sysbus, index as u32, 0)
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}
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};
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let (r, g, b) = color.get_rgb24();
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canvas.set_draw_color(Color::RGB(r, g, b));
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canvas.draw_point(p.offset(x as i32, y as i32));
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}
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}
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}
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pub fn create_tile_view(bg: u32, gba: &GameBoyAdvance) {
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let sdl_context = sdl2::init().unwrap();
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let video_subsystem = sdl_context.video().unwrap();
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let window = video_subsystem
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.window("PaletteView", 512, 512)
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.position_centered()
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.build()
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.unwrap();
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let mut canvas = window.into_canvas().build().unwrap();
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canvas.set_draw_color(Color::RGB(00, 00, 00));
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canvas.clear();
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let bgcnt = BgControl::from(gba.sysbus.ioregs.read_reg(REG_BG0CNT + 2 * bg));
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let palette = Palette::from(gba.sysbus.get_bytes(0x0500_0000));
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let (tile_size, pixel_format) = bgcnt.tile_format();
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let tileset_addr = bgcnt.char_block();
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let tilemap_addr = bgcnt.screen_block();
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let tiles_per_row = 32;
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let num_tiles = 0x4000 / tile_size;
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println!("tileset: {:#x}, tilemap: {:#x}", tileset_addr, tilemap_addr);
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let mut tile_x = 0x20;
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let mut tile_y = 0x20;
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for t in 0..num_tiles {
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let tile_addr = tileset_addr + t * tile_size;
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if t != 0 && t % tiles_per_row == 0 {
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tile_y += 10;
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tile_x = 0x20;
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}
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tile_x += 10;
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draw_tile(
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gba,
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tile_addr,
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pixel_format,
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Point::from((tile_x, tile_y)),
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&mut canvas,
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);
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}
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canvas.present();
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let mut event_pump = sdl_context.event_pump().unwrap();
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'running: loop {
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for event in event_pump.poll_iter() {
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match event {
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Event::Quit { .. } => break 'running,
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_ => {}
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}
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}
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}
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}
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