public Tmem(TextureCache cache)
{
this.cache_ = cache;
}
public void GenerateAndAddToCache(
IList <byte> data,
int offset,
ref TileDescriptor tileDescriptor,
Color4UByte[] palette32,
TextureCache cache,
bool save = false)
{
var loadedRgba = new byte[] { 0, 0xFF, 0, 0 };
var width = tileDescriptor.LoadWidth;
var height = tileDescriptor.LoadHeight;
// Clamp defines whether to clamp each uv component. Unlike standard
// OpenGL, this can be combined with wrapping/mirroring so the texture
// wraps a few times before actually clamping.
var clampS = (tileDescriptor.CMS & (int)RDP.G_TX_CLAMP) != 0;
var clampT = (tileDescriptor.CMT & (int)RDP.G_TX_CLAMP) != 0;
// Mirror defines whether to mirror each uv component when wrapping. That
// is, values will range between [0, 1], then values beyond will go from
// [1, 0], then back to [0, 1], and so on. If this is false, values will
// always wrap between [0, 1].
var mirrorS = (tileDescriptor.CMS & (int)RDP.G_TX_MIRROR) != 0;
var mirrorT = (tileDescriptor.CMT & (int)RDP.G_TX_MIRROR) != 0;
// These following values represent the true bounds of accessible uv
// space for clamping. In standard OpenGL, uvs will always be clamped
// between [0, 1], but in the N64 hardware these bounds can be altered.
var sSize = tileDescriptor.LRS - tileDescriptor.ULS + 1;
var tSize = tileDescriptor.LRT - tileDescriptor.ULT + 1;
if (tileDescriptor.Uuid == 4223219967995088)
{
var hi = 0;
}
var converter =
TextureConverter.GetConverter(tileDescriptor.ColorFormat,
tileDescriptor.BitSize);
converter.Convert((uint)width,
(uint)height,
(uint)tileDescriptor.LineSize,
data,
offset,
ref loadedRgba,
palette32);
var gorbledS = (clampS && mirrorS) || sSize != width;
var gorbledT = (clampT && mirrorT) || tSize != height;
byte[] resizedRgba;
if (GlobalVarsCs.UnwrapTextures && (gorbledS || gorbledT))
{
resizedRgba = new byte[4 * sSize * tSize];
for (var s = 0; s < sSize; ++s)
{
for (var t = 0; t < tSize; ++t)
{
var xTimes = Math.DivRem(s, width, out var xMod);
var yTimes = Math.DivRem(t, height, out var yMod);
var x = xMod;
var y = yMod;
if (mirrorS && xTimes % 2 == 1)
{
x = width - 1 - xMod;
}
if (mirrorT && yTimes % 2 == 1)
{
y = height - 1 - yMod;
}
for (var i = 0; i < 4; ++i)
{
resizedRgba[4 * (t * sSize + s) + i] =
loadedRgba[4 * (y * width + x) + i];
}
}
}
if (gorbledS)
{
clampS = true;
mirrorS = false;
tileDescriptor.TextureWRatio *= (1.0 * width) / sSize;
tileDescriptor.LineSize = tileDescriptor.LoadWidth = width = sSize;
}
if (gorbledT)
{
clampT = true;
mirrorT = false;
tileDescriptor.TextureHRatio *= (1.0 * height) / tSize;
tileDescriptor.LoadHeight = height = tSize;
}
}
else
{
resizedRgba = loadedRgba;
}
// Some textures are repeated and THEN clamped, so we must resize the
// image accordingly.
// Generates texture.
Gl.glGenTextures(1, out tileDescriptor.ID);
Gl.glBindTexture(Gl.GL_TEXTURE_2D, tileDescriptor.ID);
// Puts pixels into texture.
Gl.glTexImage2D(Gl.GL_TEXTURE_2D,
0,
Gl.GL_RGBA,
tileDescriptor.LoadWidth,
tileDescriptor.LoadHeight,
0,
Gl.GL_RGBA,
Gl.GL_UNSIGNED_BYTE,
resizedRgba);
Glu.gluBuild2DMipmaps(Gl.GL_TEXTURE_2D,
Gl.GL_RGBA,
tileDescriptor.LoadWidth,
tileDescriptor.LoadHeight,
Gl.GL_RGBA,
Gl.GL_UNSIGNED_BYTE,
resizedRgba);
var texture =
Asserts.Assert(cache.Add(tileDescriptor, resizedRgba, save));
/**
* Lets OpenGL manage wrapping instead of calculating it within the
* shader. This is necessary to fix seams.
*/
var differentS = sSize != width;
if (clampS)
{
texture.GlClampedS = true;
}
if (mirrorS)
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_S,
Gl.GL_MIRRORED_REPEAT);
texture.GlMirroredS = true;
}
else if (!clampS)
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_S,
Gl.GL_REPEAT);
}
else if (differentS)
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_S,
Gl.GL_REPEAT);
}
else
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_S,
Gl.GL_CLAMP_TO_EDGE);
}
var differentT = tSize != height;
if (clampT)
{
texture.GlClampedT = true;
}
if (mirrorT)
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_T,
Gl.GL_MIRRORED_REPEAT);
texture.GlMirroredT = true;
}
else if (!clampT)
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_T,
Gl.GL_REPEAT);
}
else if (differentT)
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_T,
Gl.GL_REPEAT);
}
else
{
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_WRAP_T,
Gl.GL_CLAMP_TO_EDGE);
}
//if (UoT.GlobalVars.RenderToggles.Anisotropic) {
Gl.glTexParameterf(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_MAX_ANISOTROPY_EXT,
GLExtensions.AnisotropicSamples);
/*} else {
* Gl.glTexParameterf(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f);
* }*/
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_MIN_FILTER,
Gl.GL_LINEAR_MIPMAP_LINEAR);
Gl.glTexParameteri(Gl.GL_TEXTURE_2D,
Gl.GL_TEXTURE_MAG_FILTER,
Gl.GL_LINEAR_MIPMAP_LINEAR);
}
