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Fix svga not rendering pixels at bottom of changed buffer (#628)

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This commit is contained in:
Fabian 2022-03-09 19:11:21 +01:00
parent 06df7cc265
commit dec8fa0b59
2 changed files with 3 additions and 3 deletions
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2
src/rust/cpu/vga.rs
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@ -50,7 +50,7 @@ fn iter_dirty_pages(f: &dyn Fn(isize)) {
unsafe {
*global_pointers::svga_dirty_bitmap_min_offset = min_off;
*global_pointers::svga_dirty_bitmap_max_offset = max_off;
*global_pointers::svga_dirty_bitmap_max_offset = max_off + 0xFFF;
}
}

4
src/vga.js
View file

@ -2300,8 +2300,8 @@ VGAScreen.prototype.screen_fill_buffer = function()
this.cpu.svga_fill_pixel_buffer(this.svga_bpp, this.svga_offset);
const bytes_per_pixel = this.svga_bpp === 15 ? 2 : this.svga_bpp / 8;
min_y = ((this.cpu.svga_dirty_bitmap_min_offset[0] / bytes_per_pixel | 0) - this.svga_offset) / this.svga_width;
max_y = ((this.cpu.svga_dirty_bitmap_max_offset[0] / bytes_per_pixel | 0) - this.svga_offset) / this.svga_width + 1;
min_y = (((this.cpu.svga_dirty_bitmap_min_offset[0] / bytes_per_pixel | 0) - this.svga_offset) / this.svga_width | 0);
max_y = (((this.cpu.svga_dirty_bitmap_max_offset[0] / bytes_per_pixel | 0) - this.svga_offset) / this.svga_width | 0) + 1;
}
if(min_y < max_y)