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tests for mix_pixel_bitplanes

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This commit is contained in:
Franco Colmenarez
2024-11-03 23:01:56 -05:00
parent b1db09843e
commit 02763ef66e
2 changed files with 26 additions and 3 deletions
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snes-core/src/ppu/interface.rs
+25 -2
View File
@@ -76,7 +76,7 @@ impl PPU {
// (0xFF, 0x00, 0xFF) // (0xFF, 0x00, 0xFF)
} }
// TODO: wrte tests for this function // TODO: wirte tests for this function
fn compute_background_pixel(&self, background: Background) -> (u8, u8, u8) { fn compute_background_pixel(&self, background: Background) -> (u8, u8, u8) {
// 0. detect video mode? // 0. detect video mode?
// 1. get base tileset vram address // 1. get base tileset vram address
@@ -127,7 +127,6 @@ impl PPU {
} }
} }
// TODO: write tests
fn mix_pixel_bitplanes(lsb_bitplane: u8, msb_bitplane: u8) -> [u8; 8] { fn mix_pixel_bitplanes(lsb_bitplane: u8, msb_bitplane: u8) -> [u8; 8] {
[ [
( (
@@ -244,4 +243,28 @@ mod ppu_general_test {
assert_eq!(ppu.framebuffer[2049], 22); assert_eq!(ppu.framebuffer[2049], 22);
assert_eq!(ppu.framebuffer[2050], 33); assert_eq!(ppu.framebuffer[2050], 33);
} }
#[test]
fn test_mix_pixel_bitplanes() {
assert_eq!(
PPU::mix_pixel_bitplanes(0b00000000, 0b00000000),
[0b00, 0b00, 0b00, 0b00, 0b00, 0b00, 0b00, 0b00],
);
assert_eq!(
PPU::mix_pixel_bitplanes(0b11111111, 0b11111111),
[0b11, 0b11, 0b11, 0b11, 0b11, 0b11, 0b11, 0b11],
);
assert_eq!(
PPU::mix_pixel_bitplanes(0b11111111, 0b00000000),
[0b01, 0b01, 0b01, 0b01, 0b01, 0b01, 0b01, 0b01],
);
assert_eq!(
PPU::mix_pixel_bitplanes(0b00000000, 0b11111111),
[0b10, 0b10, 0b10, 0b10, 0b10, 0b10, 0b10, 0b10],
);
assert_eq!(
PPU::mix_pixel_bitplanes(0b11110000, 0b00001111),
[0b01, 0b01, 0b01, 0b01, 0b10, 0b10, 0b10, 0b10],
);
}
} }
snes-core/src/ppu/registers.rs
+1 -1
View File
@@ -45,7 +45,7 @@ pub const M7Y: u16 = 0x2120; // Rotation/Scaling Center Coordinate Y (
// PPU CGRAM // PPU CGRAM
pub const CGADD: u16 = 0x2121; // Palette CGRAM Address pub const CGADD: u16 = 0x2121; // Palette CGRAM Address
pub const CGDATA: u16 = 0x2122; // Palette CGRAM Address pub const CGDATA: u16 = 0x2122; // Palette CGRAM data write
// PPU Window // PPU Window
pub const W12SEL: u16 = 0x2123; // Window BG1/BG2 Mask Settings (W) pub const W12SEL: u16 = 0x2123; // Window BG1/BG2 Mask Settings (W)