/// <summary>
/// Shamelessly copied from GLideN64's source.
/// </summary>
private void LoadTile32b_(
ref TileDescriptor tileDescriptor,
TimgArgs timgArgs)
{
var uls = tileDescriptor.ULS;
var ult = tileDescriptor.ULT;
var lrs = tileDescriptor.LRS;
var lrt = tileDescriptor.LRT;
var width = lrs - uls + 1;
var height = lrt - ult + 1;
var line = tileDescriptor.LineSize << 2;
var tbase = tileDescriptor.TmemOffset << 2;
IoUtil.SplitAddress(timgArgs.Address, out var bank, out var offset);
var targetBank = Asserts.Assert(RamBanks.GetBankByIndex(bank));
var timgWidth = timgArgs.Width;
for (var j = 0; j < height; ++j)
{
var tline = tbase + line * j;
var s = ((j + ult) * timgWidth) + uls;
var xorval = (j & 1) != 0 ? 3 : 1;
for (var i = 0; i < width; ++i)
{
var addr = offset + s + i;
var c = IoUtil.ReadUInt32(targetBank, (uint)(4 * addr));
var ptr = ((tline + i) ^ xorval) & 0x3ff;
var offset1 = 2 * ptr;
IoUtil.WriteInt16(targetBank, ref offset1, (ushort)(c >> 16));
var offset2 = 2 * (ptr | 0x400);
IoUtil.WriteInt16(targetBank, ref offset2, (ushort)(c & 0xffff));
}
}
}
// TODO: The other method passes in "texels", not "lrs"???
/// <summary>
/// Shamelessly copied from GLideN64's source.
/// </summary>
public void LoadBlock(
ref TileDescriptor tileDescriptor,
uint uls,
uint ult,
uint lrs,
uint dxt,
TimgArgs timgArgs)
{
tileDescriptor.ULS = (int)uls >> 2;
tileDescriptor.ULT = (int)ult >> 2;
// TODO: This feels like a bug?
tileDescriptor.LRS = (int)lrs >> 2;
tileDescriptor.LRT = (int)dxt >> 2;
var tmem = tileDescriptor.TmemOffset;
var colorFormat = tileDescriptor.ColorFormat;
var bitSize = tileDescriptor.BitSize;
/*if (gSP.DMAOffsets.tex_offset != 0) {
* if (gSP.DMAOffsets.tex_shift % (((lrs >> 2) + 1) << 3)) {
* gDP.textureImage.address -= gSP.DMAOffsets.tex_shift;
* gSP.DMAOffsets.tex_offset = 0;
* gSP.DMAOffsets.tex_shift = 0;
* gSP.DMAOffsets.tex_count = 0;
* } else
++gSP.DMAOffsets.tex_count;
* }*/
var timgAddress = timgArgs.Address;
var timgBitSize = timgArgs.BitSize;
var timgWidth = timgArgs.Width;
var timgBpl = timgWidth << (int)timgBitSize >> 1;
IoUtil.SplitAddress(timgAddress, out var bank, out var offset);
tileDescriptor.Address = (int)timgAddress;
tileDescriptor.ImageBank = (int)bank;
tileDescriptor.Offset = (int)offset;
var texture = this.cache_[tileDescriptor];
if (texture != null)
{
return;
}
/*gDPLoadTileInfo & info = gDP.loadInfo[gDP.loadTile->tmem];
* info.texAddress = gDP.loadTile->imageAddress;
* info.uls = static_cast<u16>(gDP.loadTile->uls);
* info.ult = static_cast<u16>(gDP.loadTile->ult);
* info.lrs = static_cast<u16>(gDP.loadTile->lrs);
* info.lrt = static_cast<u16>(gDP.loadTile->lrt);
* info.width = static_cast<u16>(gDP.loadTile->lrs);
* info.dxt = dxt;
* info.size = static_cast<u8>(gDP.textureImage.size);
* info.loadType = LOADTYPE_BLOCK;*/
// TODO: This doesn't look right?
uint jankWidth = (lrs - uls + 1) & 0x0FFF;
uint bytes = jankWidth << (int)bitSize >> 1;
if ((bytes & 7) != 0)
{
bytes = (bytes & (~7U)) + 8;
}
//info.bytes = bytes;
uint address = (uint)(timgAddress +
ult * timgBpl +
(uls << (int)timgBitSize >> 1));
IoUtil.SplitAddress(address, out var specBank, out var specOffset);
/*if (bytes == 0 || (address + bytes) > RDRAMSize) {
* DebugMsg(DEBUG_NORMAL | DEBUG_ERROR, "// Attempting to load texture block out of range\n");
* DebugMsg(DEBUG_NORMAL, "gDPLoadBlock( %i, %i, %i, %i, %i );\n", tile, uls, ult, lrs, dxt);
* return;
* }*/
/*
* gDP.loadTile->frameBufferAddress = 0;
* CheckForFrameBufferTexture(address, info.width, bytes); // Load data to TMEM even if FB texture is found. See comment to texturedRectDepthBufferCopy
*/
/*var texLowerBound = tileDescriptor.TmemOffset;
* var texUpperBound = texLowerBound + (bytes >> 3);
* for (var i = 0; i < tile; ++i) {
* if (gDP.tiles[i].tmem >= texLowerBound && gDP.tiles[i].tmem < texUpperBound) {
* gDPLoadTileInfo & info = gDP.loadInfo[gDP.tiles[i].tmem];
* info.loadType = LOADTYPE_BLOCK;
* }
* }*/
var targetBuffer = RamBanks.GetBankByIndex(specBank);
if (targetBuffer == null)
{
return;
}
uint tmemAddr = tmem;
if (bitSize == BitSize.S_32B)
{
//gDPLoadBlock32(gDP.loadTile->uls, gDP.loadTile->lrs, dxt);
}
else if (colorFormat == ColorFormat.YUV)
{
//memcpy(TMEM, &RDRAM[address], bytes); // HACK!
}
else
{
for (var i = 0; i < bytes; ++i)
{
this.impl_[i] = targetBuffer[(int)(specOffset + i)];
}
// TODO: Figure out what the heck this stuff below does.
/*this.UnswapCopyWrap_(targetBuffer,
* specOffset,
* this.impl_,
* tmemAddr << 3,
* 0xFFF,
* bytes);*/
/*if (dxt != 0) {
* uint dxtCounter = 0;
* uint qwords = (bytes >> 3);
* uint line = 0;
* while (true) {
* do {
++tmemAddr;
* --qwords;
* if (qwords == 0)
* goto end_dxt_test;
* dxtCounter += dxt;
* } while ((dxtCounter & 0x800) == 0);
* do {
++line;
* --qwords;
* if (qwords == 0)
* goto end_dxt_test;
* dxtCounter += dxt;
* } while ((dxtCounter & 0x800) != 0);
* this.DWordInterleaveWrap_(this.impl_, tmemAddr << 1, 0x3FF, line);
* tmemAddr += line;
* line = 0;
* }
* end_dxt_test:
*
* this.DWordInterleaveWrap_(this.impl_, tmemAddr << 1, 0x3FF, line);
* }*/
}
}
/// <summary>
/// Shamelessly copied from GLideN64's source.
/// </summary>
public void LoadTile(
ref TileDescriptor tileDescriptor,
ushort uls,
ushort ult,
ushort lrs,
ushort lrt,
TimgArgs timgArgs)
{
// TODO: Implement this method.
// TODO: To verify behavior, load contents into a new texture and save to
// file.
tileDescriptor.ULS = uls;
tileDescriptor.ULT = ult;
tileDescriptor.LRS = lrs;
tileDescriptor.LRT = lrt;
var fUls = IoUtil.Fixed2Float(uls, 2);
var fUlt = IoUtil.Fixed2Float(ult, 2);
var fLrs = IoUtil.Fixed2Float(lrs, 2);
var fLrt = IoUtil.Fixed2Float(lrt, 2);
var timgImageAddress = timgArgs.Address;
var timgBitSize = timgArgs.BitSize;
var timgWidth = timgArgs.Width;
var timgBpl = timgWidth << (int)timgBitSize >> 1;
var tmem = tileDescriptor.TmemOffset;
var line = tileDescriptor.LineSize;
var maskS = tileDescriptor.MaskS;
var maskT = tileDescriptor.MaskT;
byte imageBank;
uint offset;
IoUtil.SplitAddress(timgImageAddress, out imageBank, out offset);
tileDescriptor.ImageBank = imageBank;
tileDescriptor.Offset = (int)offset;
var texture = this.cache_[tileDescriptor];
if (texture != null)
{
return;
}
if (lrs < uls || lrt < ult)
{
return;
}
var width = (lrs - uls + 1) & 0x03FF;
var height = (lrt - ult + 1) & 0x03FF;
var bpl = line << 3;
var alignedWidth = width;
var wmask = 0;
switch (timgBitSize)
{
case BitSize.S_8B:
wmask = 7;
break;
case BitSize.S_16B:
wmask = 3;
break;
case BitSize.S_32B:
wmask = 1;
break;
default:
throw new NotSupportedException();
}
if ((width & wmask) != 0)
{
alignedWidth = (width & (~wmask)) + wmask + 1;
}
var bpr = alignedWidth << (int)timgBitSize >> 1;
// Start doing the loading.
var infoTexAddress = timgImageAddress;
var infoWidth = (ushort)(maskS != 0
? Math.Min(width, 1U << maskS)
: width);
var infoHeight = (ushort)(maskT != 0
? Math.Min(height,
1U << maskT)
: height);
var infoTexWidth = timgWidth;
var infoSize = timgBitSize;
var infoBytes = bpl * height;
if (timgBitSize == BitSize.S_32B)
{
// 32 bit texture loaded into lower and upper half of TMEM, thus actual bytes doubled.
infoBytes *= 2;
}
if (line == 0)
{
return;
}
if (maskS == 0)
{
tileDescriptor.LoadWidth =
Math.Max(tileDescriptor.LoadWidth, infoWidth);
}
if (maskT == 0)
{
if (Gdp.CycleMode != (int)RdpCycleMode.G_CYC_2CYCLE &&
tmem % line == 0)
{
var theight = (ushort)(infoHeight + tmem / line);
tileDescriptor.LoadHeight =
Math.Max(tileDescriptor.LoadHeight, theight);
}
else
{
tileDescriptor.LoadHeight =
Math.Max(tileDescriptor.LoadHeight, infoHeight);
}
}
var address = timgImageAddress +
ult * timgBpl +
(uls << (int)timgBitSize >> 1);
/*
* u32 bpl2 = bpl;
* if (gDP.loadTile->lrs > timgWidth)
* bpl2 = (gDP.textureImage.width - gDP.loadTile->uls);
* var height2 = height;
*
* if (gDP.loadTile->lrt > gDP.scissor.lry)
* height2 = static_cast<u32>(gDP.scissor.lry) - gDP.loadTile->ult;
*
* if (CheckForFrameBufferTexture(address, info.width, bpl2 * height2))
* return;*/
if (timgBitSize == BitSize.S_32B)
{
this.LoadTile32b_(ref tileDescriptor, timgArgs);
}
else
{
;
/*u32 tmemAddr = gDP.loadTile->tmem;
* const u32 line = gDP.loadTile->line;
* const u32 qwpr = bpr >> 3;
* for (u32 y = 0; y < height; ++y) {
* if (address + bpl > RDRAMSize)
* UnswapCopyWrap(RDRAM,
* address,
* reinterpret_cast<u8*>(TMEM),
* tmemAddr << 3,
* 0xFFF,
* RDRAMSize - address);
* else
* UnswapCopyWrap(RDRAM,
* address,
* reinterpret_cast<u8*>(TMEM),
* tmemAddr << 3,
* 0xFFF,
* bpr);
* if (y & 1)
* DWordInterleaveWrap(reinterpret_cast<u32*>(TMEM),
* tmemAddr << 1,
* 0x3FF,
* qwpr);
*
* address += gDP.textureImage.bpl;
* if (address >= RDRAMSize)
* break;
* tmemAddr += line;
* }*/
}
}