public static void GL_MipMap(uint[] src, int width, int height)
{
Union4b p1 = Union4b.Empty, p2 = Union4b.Empty, p3 = Union4b.Empty, p4 = Union4b.Empty;
width >>= 1;
height >>= 1;
uint[] dest = src;
int srcOffset = 0;
int destOffset = 0;
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
p1.ui0 = src[srcOffset];
int offset = srcOffset + 1;
p2.ui0 = offset < src.Length ? src[offset] : p1.ui0;
offset = srcOffset + (width << 1);
p3.ui0 = offset < src.Length ? src[offset] : p1.ui0;
offset = srcOffset + (width << 1) + 1;
p4.ui0 = offset < src.Length ? src[offset] : p1.ui0;
p1.b0 = (byte)((p1.b0 + p2.b0 + p3.b0 + p4.b0) >> 2);
p1.b1 = (byte)((p1.b1 + p2.b1 + p3.b1 + p4.b1) >> 2);
p1.b2 = (byte)((p1.b2 + p2.b2 + p3.b2 + p4.b2) >> 2);
p1.b3 = (byte)((p1.b3 + p2.b3 + p3.b3 + p4.b3) >> 2);
dest[destOffset] = p1.ui0;
destOffset++;
srcOffset += 2;
}
srcOffset += width << 1;
}
}
// GL_MipMap
//
// Operates in place, quartering the size of the texture
protected void MipMap(UInt32[] src, Int32 width, Int32 height)
{
Union4b p1 = Union4b.Empty, p2 = Union4b.Empty, p3 = Union4b.Empty, p4 = Union4b.Empty;
width >>= 1;
height >>= 1;
var dest = src;
var srcOffset = 0;
var destOffset = 0;
for (var i = 0; i < height; i++)
{
for (var j = 0; j < width; j++)
{
p1.ui0 = src[srcOffset];
var offset = srcOffset + 1;
p2.ui0 = offset < src.Length ? src[offset] : p1.ui0;
offset = srcOffset + (width << 1);
p3.ui0 = offset < src.Length ? src[offset] : p1.ui0;
offset = srcOffset + (width << 1) + 1;
p4.ui0 = offset < src.Length ? src[offset] : p1.ui0;
p1.b0 = ( Byte )((p1.b0 + p2.b0 + p3.b0 + p4.b0) >> 2);
p1.b1 = ( Byte )((p1.b1 + p2.b1 + p3.b1 + p4.b1) >> 2);
p1.b2 = ( Byte )((p1.b2 + p2.b2 + p3.b2 + p4.b2) >> 2);
p1.b3 = ( Byte )((p1.b3 + p2.b3 + p3.b3 + p4.b3) >> 2);
dest[destOffset] = p1.ui0;
destOffset++;
srcOffset += 2;
}
srcOffset += width << 1;
}
}
public static void WriteInt(byte[] dest, int offset, int value)
{
Union4b u = Union4b.Empty;
u.i0 = value;
dest[offset + 0] = u.b0;
dest[offset + 1] = u.b1;
dest[offset + 2] = u.b2;
dest[offset + 3] = u.b3;
}
/// <summary>
/// VID_SetPalette
/// called at startup and after any gamma correction
/// </summary>
public static void SetPalette(byte[] palette)
{
//
// 8 8 8 encoding
//
int offset = 0;
byte[] pal = palette;
uint[] table = _8to24table;
for (int i = 0; i < table.Length; i++)
{
uint r = pal[offset + 0];
uint g = pal[offset + 1];
uint b = pal[offset + 2];
table[i] = ((uint)0xff << 24) + (r << 0) + (g << 8) + (b << 16);
offset += 3;
}
table[255] &= 0xffffff; // 255 is transparent
// JACK: 3D distance calcs - k is last closest, l is the distance.
// FIXME: Precalculate this and cache to disk.
Union4b val = Union4b.Empty;
for (uint i = 0; i < (1 << 15); i++)
{
// Maps
// 000000000000000
// 000000000011111 = Red = 0x1F
// 000001111100000 = Blue = 0x03E0
// 111110000000000 = Grn = 0x7C00
uint r = (((i & 0x1F) << 3) + 4);
uint g = (((i & 0x03E0) >> 2) + 4);
uint b = (((i & 0x7C00) >> 7) + 4);
uint k = 0;
uint l = 10000 * 10000;
for (uint v = 0; v < 256; v++)
{
val.ui0 = _8to24table[v];
uint r1 = r - val.b0;
uint g1 = g - val.b1;
uint b1 = b - val.b2;
uint j = (r1 * r1) + (g1 * g1) + (b1 * b1);
if (j < l)
{
k = v;
l = j;
}
}
_15to8table[i] = (byte)k;
}
}
public static void GL_DrawAliasFrame(aliashdr_t paliashdr, int posenum)
{
lastposenum = posenum;
trivertx_t[] verts = paliashdr.posedata;
int vertsOffset = posenum * paliashdr.poseverts;
int[] order = paliashdr.commands;
int orderOffset = 0;
while (true)
{
// get the vertex count and primitive type
int count = order[orderOffset++];
if (count == 0)
{
break; // done
}
if (count < 0)
{
count = -count;
GL.Begin(BeginMode.TriangleFan);
}
else
{
GL.Begin(BeginMode.TriangleStrip);
}
Union4b u1 = Union4b.Empty, u2 = Union4b.Empty;
do
{
float[] v = { (float)verts[vertsOffset].v[0], verts[vertsOffset].v[1], verts[vertsOffset].v[2] };
// texture coordinates come from the draw list
u1.i0 = order[orderOffset + 0];
u2.i0 = order[orderOffset + 1];
orderOffset += 2;
GL.TexCoord2(u1.f0, u2.f0);
// normals and vertexes come from the frame list
float l = shadedots[verts[vertsOffset].lightnormalindex] * shadelight;
GL.Color3(l, l, l);
GL.Vertex3(v[0], v[1], v[2]);
vertsOffset++;
} while (--count > 0);
GL.End();
}
}
/// <summary>
/// GL_DrawAliasFrame
/// </summary>
protected override void DrawAliasFrame(Single shadeLight, Single[] shadeDots, aliashdr_t paliashdr, Int32 posenum)
{
AliasDesc.LastPoseNumber = posenum;
var verts = paliashdr.posedata;
var vertsOffset = posenum * paliashdr.poseverts;
var order = paliashdr.commands;
var orderOffset = 0;
while (true)
{
// get the vertex count and primitive type
var count = order[orderOffset++];
if (count == 0)
{
break; // done
}
if (count < 0)
{
count = -count;
GL.Begin(PrimitiveType.TriangleFan);
}
else
{
GL.Begin(PrimitiveType.TriangleStrip);
}
Union4b u1 = Union4b.Empty, u2 = Union4b.Empty;
do
{
// texture coordinates come from the draw list
u1.i0 = order[orderOffset + 0];
u2.i0 = order[orderOffset + 1];
orderOffset += 2;
GL.TexCoord2(u1.f0, u2.f0);
// normals and vertexes come from the frame list
var l = shadeDots[verts[vertsOffset].lightnormalindex] * shadeLight;
GL.Color3(l, l, l);
GL.Vertex3(( Single )verts[vertsOffset].v[0], verts[vertsOffset].v[1], verts[vertsOffset].v[2]);
vertsOffset++;
} while (--count > 0);
GL.End( );
}
}
/// <summary>
/// BuildTris
/// Generate a list of trifans or strips for the model, which holds for all frames
/// </summary>
static void BuildTris()
{
int[] bestverts = new int[1024];
int[] besttris = new int[1024];
// Uze
// All references to pheader from model.c changed to _AliasHdr (former paliashdr)
//
// build tristrips
//
stvert_t[] stverts = Mod.STVerts;
dtriangle_t[] triangles = Mod.Triangles;
_NumOrder = 0;
_NumCommands = 0;
Array.Clear(_Used, 0, _Used.Length); // memset (used, 0, sizeof(used));
int besttype = 0, len;
for (int i = 0; i < _AliasHdr.numtris; i++)
{
// pick an unused triangle and start the trifan
if (_Used[i] != 0)
{
continue;
}
int bestlen = 0;
for (int type = 0; type < 2; type++)
{
for (int startv = 0; startv < 3; startv++)
{
if (type == 1)
{
len = StripLength(i, startv);
}
else
{
len = FanLength(i, startv);
}
if (len > bestlen)
{
besttype = type;
bestlen = len;
for (int j = 0; j < bestlen + 2; j++)
{
bestverts[j] = _StripVerts[j];
}
for (int j = 0; j < bestlen; j++)
{
besttris[j] = _StripTris[j];
}
}
}
}
// mark the tris on the best strip as used
for (int j = 0; j < bestlen; j++)
{
_Used[besttris[j]] = 1;
}
if (besttype == 1)
{
_Commands[_NumCommands++] = (bestlen + 2);
}
else
{
_Commands[_NumCommands++] = -(bestlen + 2);
}
Union4b uval = Union4b.Empty;
for (int j = 0; j < bestlen + 2; j++)
{
// emit a vertex into the reorder buffer
int k = bestverts[j];
_VertexOrder[_NumOrder++] = k;
// emit s/t coords into the commands stream
float s = stverts[k].s;
float t = stverts[k].t;
if (triangles[besttris[0]].facesfront == 0 && stverts[k].onseam != 0)
{
s += _AliasHdr.skinwidth / 2; // on back side
}
s = (s + 0.5f) / _AliasHdr.skinwidth;
t = (t + 0.5f) / _AliasHdr.skinheight;
uval.f0 = s;
_Commands[_NumCommands++] = uval.i0;
uval.f0 = t;
_Commands[_NumCommands++] = uval.i0;
}
}
_Commands[_NumCommands++] = 0; // end of list marker
Con.DPrint("{0,3} tri {1,3} vert {2,3} cmd\n", _AliasHdr.numtris, _NumOrder, _NumCommands);
_AllVerts += _NumOrder;
_AllTris += _AliasHdr.numtris;
}
public MessageReader(MessageWriter source)
{
this._Source = source;
this._Val = Union4b.Empty;
this._Tmp = new char[2048];
}
static msurface_t _WarpFace; // used by SubdivideSurface()
/// <summary>
/// R_InitSky
/// called at level load
/// A sky texture is 256*128, with the right side being a masked overlay
/// </summary>
public static void InitSky(texture_t mt)
{
byte[] src = mt.pixels;
int offset = mt.offsets[0];
// make an average value for the back to avoid
// a fringe on the top level
const int size = 128 * 128;
uint[] trans = new uint[size];
uint[] v8to24 = Vid.Table8to24;
int r = 0;
int g = 0;
int b = 0;
Union4b rgba = Union4b.Empty;
for (int i = 0; i < 128; i++)
{
for (int j = 0; j < 128; j++)
{
int p = src[offset + i * 256 + j + 128];
rgba.ui0 = v8to24[p];
trans[(i * 128) + j] = rgba.ui0;
r += rgba.b0;
g += rgba.b1;
b += rgba.b2;
}
}
rgba.b0 = (byte)(r / size);
rgba.b1 = (byte)(g / size);
rgba.b2 = (byte)(b / size);
rgba.b3 = 0;
uint transpix = rgba.ui0;
if (_SolidSkyTexture == 0)
{
_SolidSkyTexture = Drawer.GenerateTextureNumber();
}
Drawer.Bind(_SolidSkyTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, Drawer.SolidFormat, 128, 128, 0, PixelFormat.Rgba, PixelType.UnsignedByte, trans);
Drawer.SetTextureFilters(TextureMinFilter.Linear, TextureMagFilter.Linear);
for (int i = 0; i < 128; i++)
{
for (int j = 0; j < 128; j++)
{
int p = src[offset + i * 256 + j];
if (p == 0)
{
trans[(i * 128) + j] = transpix;
}
else
{
trans[(i * 128) + j] = v8to24[p];
}
}
}
if (_AlphaSkyTexture == 0)
{
_AlphaSkyTexture = Drawer.GenerateTextureNumber();
}
Drawer.Bind(_AlphaSkyTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, Drawer.AlphaFormat, 128, 128, 0, PixelFormat.Rgba, PixelType.UnsignedByte, trans);
Drawer.SetTextureFilters(TextureMinFilter.Linear, TextureMagFilter.Linear);
}
// S_TransferStereo16
static void TransferStereo16(int endtime)
{
int snd_vol = (int)(_Volume.Value * 256);
int lpaintedtime = _PaintedTime;
byte[] buffer = _Controller.LockBuffer();
int srcOffset = 0;
int destCount = 0;//uze
int destOffset = 0;
Union4b uval = Union4b.Empty;
while (lpaintedtime < endtime)
{
// handle recirculating buffer issues
int lpos = lpaintedtime & ((_shm.samples >> 1) - 1);
//int destOffset = (lpos << 2); // in bytes!!!
int snd_linear_count = (_shm.samples >> 1) - lpos; // in portable_samplepair_t's!!!
if (lpaintedtime + snd_linear_count > endtime)
{
snd_linear_count = endtime - lpaintedtime;
}
// beginning of Snd_WriteLinearBlastStereo16
// write a linear blast of samples
for (int i = 0; i < snd_linear_count; i++)
{
int val1 = (_PaintBuffer[srcOffset + i].left * snd_vol) >> 8;
int val2 = (_PaintBuffer[srcOffset + i].right * snd_vol) >> 8;
if (val1 > 0x7fff)
{
val1 = 0x7fff;
}
else if (val1 < C8000)
{
val1 = C8000;
}
if (val2 > 0x7fff)
{
val2 = 0x7fff;
}
else if (val2 < C8000)
{
val2 = C8000;
}
uval.s0 = (short)val1;
uval.s1 = (short)val2;
buffer[destOffset + 0] = uval.b0;
buffer[destOffset + 1] = uval.b1;
buffer[destOffset + 2] = uval.b2;
buffer[destOffset + 3] = uval.b3;
destOffset += 4;
}
// end of Snd_WriteLinearBlastStereo16 ();
// Uze
destCount += snd_linear_count * 4;
srcOffset += snd_linear_count; // snd_p += snd_linear_count;
lpaintedtime += (snd_linear_count); // >> 1);
}
_Controller.UnlockBuffer(destCount);
}
// S_TransferPaintBuffer
static void TransferPaintBuffer(int endtime)
{
if (_shm.samplebits == 16 && _shm.channels == 2)
{
TransferStereo16(endtime);
return;
}
int count = (endtime - _PaintedTime) * _shm.channels;
int out_mask = _shm.samples - 1;
int out_idx = 0; //_PaintedTime * _shm.channels & out_mask;
int step = 3 - _shm.channels;
int snd_vol = (int)(_Volume.Value * 256);
byte[] buffer = _Controller.LockBuffer();
Union4b uval = Union4b.Empty;
int val, srcIndex = 0;
bool useLeft = true;
int destCount = (count * (_shm.samplebits >> 3)) & out_mask;
if (_shm.samplebits == 16)
{
while (count-- > 0)
{
if (useLeft)
{
val = (_PaintBuffer[srcIndex].left * snd_vol) >> 8;
}
else
{
val = (_PaintBuffer[srcIndex].right * snd_vol) >> 8;
}
if (val > 0x7fff)
{
val = 0x7fff;
}
else if (val < C8000) // (short)0x8000)
{
val = C8000; // (short)0x8000;
}
uval.i0 = val;
buffer[out_idx * 2] = uval.b0;
buffer[out_idx * 2 + 1] = uval.b1;
if (_shm.channels == 2 && useLeft)
{
useLeft = false;
out_idx += 2;
}
else
{
useLeft = true;
srcIndex++;
out_idx = (out_idx + 1) & out_mask;
}
}
}
else if (_shm.samplebits == 8)
{
while (count-- > 0)
{
if (useLeft)
{
val = (_PaintBuffer[srcIndex].left * snd_vol) >> 8;
}
else
{
val = (_PaintBuffer[srcIndex].right * snd_vol) >> 8;
}
if (val > 0x7fff)
{
val = 0x7fff;
}
else if (val < C8000) //(short)0x8000)
{
val = C8000; //(short)0x8000;
}
buffer[out_idx] = (byte)((val >> 8) + 128);
out_idx = (out_idx + 1) & out_mask;
if (_shm.channels == 2 && useLeft)
{
useLeft = false;
}
else
{
useLeft = true;
srcIndex++;
}
}
}
_Controller.UnlockBuffer(destCount);
}
/*
* =============
* GL_DrawAliasBlendedFrame
*
* [email protected]: model animation interpolation
* =============
*/
protected override void DrawAliasBlendedFrame(Single shadeLight, Single[] shadeDots, aliashdr_t paliashdr, Int32 posenum, Int32 posenum2, Single blend)
{
AliasDesc.LastPoseNumber0 = posenum;
AliasDesc.LastPoseNumber = posenum2;
var verts = paliashdr.posedata;
var vert2 = verts;
var vertsOffset = posenum * paliashdr.poseverts;
var verts2Offset = posenum2 * paliashdr.poseverts;
var order = paliashdr.commands;
var orderOffset = 0;
while (true)
{
if (orderOffset >= order.Length)
{
break;
}
// get the vertex count and primitive type
var count = order[orderOffset];
orderOffset++;
if (count == 0)
{
break; // done
}
if (count < 0)
{
count = -count;
GL.Begin(PrimitiveType.TriangleFan);
}
else
{
GL.Begin(PrimitiveType.TriangleStrip);
}
Union4b u1 = Union4b.Empty, u2 = Union4b.Empty;
do
{
if (orderOffset + 1 >= order.Length)
{
break;
}
// texture coordinates come from the draw list
u1.i0 = order[orderOffset + 0];
u2.i0 = order[orderOffset + 1];
orderOffset += 2;
GL.TexCoord2(u1.f0, u2.f0);
// normals and vertexes come from the frame list
// blend the light intensity from the two frames together
Vector3 d = Vector3.Zero;
if (vertsOffset >= verts.Length)
{
count = 0;
break;
}
d.X = shadeDots[vert2[verts2Offset].lightnormalindex] -
shadeDots[verts[vertsOffset].lightnormalindex];
//var l = shadeDots[verts[vertsOffset].lightnormalindex] * shadeLight;
var l = shadeLight * (shadeDots[verts[vertsOffset].lightnormalindex] + (blend * d.X));
GL.Color3(l, l, l);
var v = new Vector3(verts[vertsOffset].v[0], verts[vertsOffset].v[1], verts[vertsOffset].v[2]);
var v2 = new Vector3(vert2[verts2Offset].v[0], vert2[verts2Offset].v[1], verts[verts2Offset].v[2]);
d = v2 - v;
GL.Vertex3(( Single )verts[vertsOffset].v[0] + (blend * d[0]), verts[vertsOffset].v[1] + (blend * d[1]), verts[vertsOffset].v[2] + (blend * d[2]));
vertsOffset++;
verts2Offset++;
} while (--count > 0);
GL.End( );
}
}