private void TestFile_(string fileName)
{
var lcd = new Lcd {
Active = false
};
var serialBus = new SerialBus();
var ioAddresses = new IoAddresses(serialBus);
var memoryMap = new MemoryMap(ioAddresses);
var registers = new Registers();
var memory = new Mmu(memoryMap, registers);
var cpu = new Cpu(lcd, memory, new Opcodes(memory));
ushort initialPc = 0;
ushort finalPc = 0;
var maxCycleCount = 100000000;
LinkedList <Expected?>?expecteds = null;
if (BlarggTest.COMPARE_TO_BINJGB_)
{
var expectedTracePath =
"R:/Documents/CSharpWorkspace/FinCSharp/FinCSharpTests/tst/emulation/gb/blargg/" +
fileName +
".txt";
expecteds = new LinkedList <Expected?>();
try {
using (var sr = new StreamReader(expectedTracePath)) {
string line;
while ((line = sr.ReadLine()) != null)
{
var words = line.Split(' ');
var expectedAHex = words[0].Substring(2);
var expectedA = byte.Parse(expectedAHex, NumberStyles.HexNumber);
var expectedFText = words[1].Substring(2);
var expectedF = 0;
if (expectedFText[0] != '-')
{
expectedF |= 1 << 7;
}
if (expectedFText[1] != '-')
{
expectedF |= 1 << 6;
}
if (expectedFText[2] != '-')
{
expectedF |= 1 << 5;
}
if (expectedFText[3] != '-')
{
expectedF |= 1 << 4;
}
var expectedAf = ByteMath.MergeBytes(expectedA, (byte)expectedF);
var expectedBcHex = words[2].Substring(3);
var expectedBc = ushort.Parse(expectedBcHex,
NumberStyles.HexNumber);
var expectedDeHex = words[3].Substring(3);
var expectedDe = ushort.Parse(expectedDeHex,
NumberStyles.HexNumber);
var expectedHlHex = words[4].Substring(3);
var expectedHl = ushort.Parse(expectedHlHex,
NumberStyles.HexNumber);
var expectedPcHex = words[6].Substring(3);
//var expectedPcHex = line.Substring(47, 4);
var expectedPc = ushort.Parse(expectedPcHex,
NumberStyles.HexNumber);
var expectedCyclesText = line.Substring(57,
line.IndexOf(
')',
57) -
57);
var expectedCycles = int.Parse(expectedCyclesText);
var expectedSclText = words[9].Substring(4);
var expectedScl = int.Parse(expectedSclText);
var expectedPpuModeText = words[12].Substring(5);
var expectedPpuMode = int.Parse(expectedPpuModeText);
expecteds.AddLast(new Expected(expectedAf,
expectedBc,
expectedDe,
expectedHl,
expectedPc,
expectedCycles,
expectedScl,
expectedPpuMode));
}
}
} catch (Exception e) {
expecteds.Clear();
expecteds = null;
}
}
var romPath =
"R:/Documents/CSharpWorkspace/FinCSharp/FinCSharpTests/tst/emulation/gb/blargg/" +
fileName +
".gb";
var romFile = LocalFile.At(romPath);
var romData = LocalFileUtil.ReadBytes(romFile);
memoryMap.Rom = new Rom(romData);
var output = "";
serialBus.Bytes.Subscribe(b => { output += Convert.ToChar(b); });
var outputPath =
"R:/Documents/CSharpWorkspace/FinCSharp/FinCSharpTests/tst/emulation/gb/blargg/output_" +
fileName +
".txt";
using var writer = (BlarggTest.LOG_TRACE_)
? new StreamWriter(outputPath)
: null;
var pc = registers.Pc;
initialPc = 0;
finalPc = 0;
var shouldGetPpuMode =
BlarggTest.LOG_TRACE_ || BlarggTest.COMPARE_TO_BINJGB_;
var lcdc = ioAddresses.Lcdc;
var ly = ioAddresses.Ly;
var instruction = 0;
var cycles = 0;
//try {
var enumerator = expecteds?.GetEnumerator();
for (var i = 0; i < maxCycleCount; ++i)
{
var expected = enumerator?.Current;
enumerator?.MoveNext();
var ppuMode = shouldGetPpuMode ? cpu.PpuMode : 0;
initialPc = pc.Value;
if (BlarggTest.LOG_TRACE_)
{
StringBuilder line = new StringBuilder();
line.AppendFormat("0x{0:x4}: ", initialPc);
line.AppendFormat("{0:x2} |", memoryMap[initialPc]);
line.AppendFormat(" af={0:x4}", registers.Af.Value);
line.AppendFormat(" bc={0:x4}", registers.Bc.Value);
line.AppendFormat(" de={0:x4}", registers.De.Value);
line.AppendFormat(" hl={0:x4}", registers.Hl.Value);
line.AppendFormat(" sp={0:x4}", registers.Sp.Value);
line.AppendFormat(" pc={0:x4} |", registers.Pc.Value);
line.AppendFormat(" tot={0} |", cycles);
line.AppendFormat(" scl={0}", cpu.UpwardScanlineCycleCounter);
line.AppendFormat(" st={0}", cpu.PpuModeCycleCount);
line.AppendFormat(" cnt={0} |", cpu.ScanlineCycleCounter / 2);
line.AppendFormat(" lcdc={0:x2}", lcdc.Value);
line.AppendFormat(" ly={0:x2}", ly.Value);
line.AppendFormat(" ppu={0:x1} |", ppuMode);
line.AppendFormat(" div={0:x2}", ioAddresses.Div);
line.AppendFormat(" tima={0:x2}", ioAddresses.Tima);
line.AppendFormat(" tma={0:x2}", ioAddresses.Tma);
line.AppendFormat(" tac={0:x2}", ioAddresses.Tac);
writer.WriteLine(line.ToString());
}
if (expected != null &&
(expected.Pc != initialPc ||
expected.Cycles != cycles ||
expected.Af != registers.Af.Value ||
expected.Bc != registers.Bc.Value ||
expected.De != registers.De.Value ||
expected.Hl != registers.Hl.Value ||
expected.Scl != cpu.UpwardScanlineCycleCounter ||
expected.PpuMode != ppuMode))
{
var errorBuilder = new StringBuilder();
errorBuilder.Append("Difference at instruction: " +
instruction +
"\n");
errorBuilder.AppendFormat("Af: {0:x4}/{1:x4}\n",
expected.Af,
registers.Af.Value);
errorBuilder.AppendFormat("Bc: {0:x4}/{1:x4}\n",
expected.Bc,
registers.Bc.Value);
errorBuilder.AppendFormat("De: {0:x4}/{1:x4}\n",
expected.De,
registers.De.Value);
errorBuilder.AppendFormat("Hl: {0:x4}/{1:x4}\n",
expected.Hl,
registers.Hl.Value);
errorBuilder.AppendFormat("Pc: {0:x4}/{1:x4}\n",
expected.Pc,
initialPc);
errorBuilder.AppendFormat("Cycles: {0}/{1}\n",
expected.Cycles,
cycles);
errorBuilder.AppendFormat("Scl: {0}/{1}\n",
expected.Scl,
cpu.UpwardScanlineCycleCounter);
errorBuilder.AppendFormat("Ppu Mode: {0}/{1}\n",
expected.PpuMode,
ppuMode);
Assert.Fail(errorBuilder.ToString());
}
cycles += cpu.ExecuteCycles(1);
instruction++;
finalPc = pc.Value;
if (initialPc == finalPc && memory.HaltState != HaltState.HALTED)
{
break;
}
}
/*} catch (Exception e) {
* output = cycles + ", " + registers.Pc.Value + ": " + output;
* throw e;
* }*/
output = cycles + ", " + registers.Pc.Value + ": " + output;
if (!output.Contains("Passed"))
{
Asserts.Fail(output);
}
}
public IFont LoadFont(string fontFileName)
{
using var library = new Library();
var bytes =
LocalFileUtil.ReadBytes(
LocalIo.Resources.GetFile("fonts/" + fontFileName));
using var face = new Face(library, bytes, 0);
const uint fontSize = 32;
face.SetPixelSizes(0, fontSize);
var supportedCharCodes = Enumerable.Range(32, 128);
// Look up total width and max height to calculate atlas size.
int atlasPadding = 2;
int atlasWidth;
int atlasHeight;
int extraAtlasHeight;
{
int totalGlyphWidth = 0;
int maxGlyphHeight = 0;
foreach (var supportedCharCode in supportedCharCodes)
{
face.LoadChar((uint)supportedCharCode,
LoadFlags.Render | LoadFlags.Monochrome,
LoadTarget.Mono);
var faceGlyph = face.Glyph;
var bitmap = faceGlyph.Bitmap;
totalGlyphWidth += bitmap.Width + atlasPadding;
maxGlyphHeight = Math.Max(maxGlyphHeight, bitmap.Rows);
}
atlasWidth = (int)Math.Pow(2,
Math.Ceiling(
Math.Log(totalGlyphWidth) /
Math.Log(2)));
atlasHeight = (int)Math.Pow(2,
Math.Ceiling(
Math.Log(maxGlyphHeight) /
Math.Log(2)));
extraAtlasHeight = atlasHeight - maxGlyphHeight;
}
var fontGlyphs = new Dictionary <char, FontGlyph>();
var atlasPixelGrid =
new FinSparseGrid <FinColor>(atlasWidth,
atlasHeight,
ColorConstants.TRANSPARENT_BLACK);
var atlasImageData = new ImageData(ImageType.RGBA, atlasPixelGrid);
var x = 0;
foreach (var supportedCharCode in supportedCharCodes)
{
face.LoadChar((uint)supportedCharCode,
LoadFlags.Default | LoadFlags.Render,
LoadTarget.Normal);
// LoadChar() has loaded contents into Glyph.
var faceGlyph = face.Glyph;
// TODO: Is it possible to load this directly into the texture?
var bitmap = faceGlyph.Bitmap;
var width = bitmap.Width;
var height = bitmap.Rows;
byte[]? bufferData = null;
try {
bufferData = bitmap.BufferData;
}
catch (Exception e) {
// TODO: This should probably not happen.
}
if (bufferData != null)
{
for (var r = 0; r < height; ++r)
{
for (var c = 0; c < width; ++c)
{
var i = r * width + c;
var alpha = bufferData[i];
var color = FinColor.FromRgbaB(255, 255, 255, alpha);
atlasPixelGrid[x + c, r] = color;
}
}
}
var leftU = (1d * x) / atlasWidth;
var rightU = (1d * (x + width)) / atlasWidth;
var topV = 0d;
var bottomV = (1d * height) / atlasHeight;
var uvCoords = ImmutableArray.Create(new (double, double)[] {
