public void TestRenderScreenWithSpriteFlipped()
{
var romData = new ROMData();
romData.Data[ROMs.PAC_MAN_COLOR.FileName] = VideoHardwareTestData.COLOR_ROM;
romData.Data[ROMs.PAC_MAN_PALETTE.FileName] = VideoHardwareTestData.PALETTE_ROM;
romData.Data[ROMs.PAC_MAN_TILE.FileName] = VideoHardwareTestData.TILE_ROM;
romData.Data[ROMs.PAC_MAN_SPRITE.FileName] = VideoHardwareTestData.SPRITE_ROM;
var video = new VideoHardware(romData);
video.InitializeColors();
video.InitializePalettes();
video.InitializeTiles();
video.InitializeSprites();
// Arrange: Load a VRAM dump which contains tiles positions and palettes for each tile.
var rawMemory = new byte[0xFFFF];
var vram = File.ReadAllBytes($"../../../TestData/maze-1.vram");
Array.Copy(vram, 0, rawMemory, 0x4000, 0x0800);
var memory = new SimpleMemory(rawMemory);
// Arrange: Setup the sprites to show.
// Pac-Man facing left sprite (46), flip X/Y (0x02).
var flags = (byte)((46 << 2) | (0x02));
memory.Write(0x4FF0, flags);
memory.Write(0x4FF1, 9); // Palette.
// Act: Render the image based on the tiles and palettes in memory.
var spriteCoordinates = new byte[16]
{
220, // x
252, // y
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
var image = video.Render(memory, spriteCoordinates, true);
// Assert: the rendered image should be the same as the reference image.
byte[] actualBytes = null;
using (var steam = new MemoryStream())
{
image.Save(steam, new BmpEncoder());
actualBytes = steam.ToArray();
}
var expectedBytes = File.ReadAllBytes($"../../../ReferenceData/render-maze-1-with-sprites-flipped.bmp");
Assert.Equal(expectedBytes, actualBytes);
}
public void TestRenderScreen(string vramFile, string expectedBitmapFile, bool flipScreen)
{
var romData = new ROMData();
romData.Data[ROMs.PAC_MAN_COLOR.FileName] = VideoHardwareTestData.COLOR_ROM;
romData.Data[ROMs.PAC_MAN_PALETTE.FileName] = VideoHardwareTestData.PALETTE_ROM;
romData.Data[ROMs.PAC_MAN_TILE.FileName] = VideoHardwareTestData.TILE_ROM;
romData.Data[ROMs.PAC_MAN_SPRITE.FileName] = VideoHardwareTestData.SPRITE_ROM;
var video = new VideoHardware(romData);
video.InitializeColors();
video.InitializePalettes();
video.InitializeTiles();
video.InitializeSprites();
// Arrange: Load a VRAM dump which contains tiles positions and palettes for each tile.
var rawMemory = new byte[0xFFFF];
var vram = File.ReadAllBytes($"../../../TestData/{vramFile}");
Array.Copy(vram, 0, rawMemory, 0x4000, 0x0800);
var memory = new SimpleMemory(rawMemory);
// Act: Render the image based on the tiles and palettes in memory.
var spriteCoordinates = new byte[16];
var image = video.Render(memory, spriteCoordinates, flipScreen);
// Assert: the rendered image should be the same as the reference image.
byte[] actualBytes = null;
using (var steam = new MemoryStream())
{
image.Save(steam, new BmpEncoder());
actualBytes = steam.ToArray();
}
var expectedBytes = File.ReadAllBytes($"../../../ReferenceData/{expectedBitmapFile}");
Assert.Equal(expectedBytes, actualBytes);
}