static aRGBA[] loadCMPR(aBinaryReader reader, int width, int height)
{
var data = new aRGBA[width * height];
const int cTileWidth = 8, cTileHeight = 8;
const int cBlockWidth = 4, cBlockHeight = 4;
for (var y = 0; y < height; y += cTileHeight) // tile
{
for (var x = 0; x < width; x += cTileWidth)
{
for (var by = 0; by < cTileHeight; by += cBlockHeight) // block
{
for (var bx = 0; bx < cTileWidth; bx += cBlockWidth)
{
var colors = aRGBA.FromST3C1(reader.Read64());
for (var ty = 0; ty < cBlockHeight && y + by + ty < height; ty++) // texel
{
for (var tx = 0; tx < cBlockWidth && x + bx + tx < width; tx++)
{
data[width * (y + by + ty) + (x + bx + tx)] = colors[(ty * cBlockWidth) + tx];
}
}
}
}
}
}
return(data);
}
static aRGBA[] loadI4(aBinaryReader reader, int width, int height)
{
var data = new aRGBA[width * height];
const int cBlockWidth = 8, cBlockHeight = 8;
for (var y = 0; y < height; y += cBlockHeight)
{
for (var x = 0; x < width; x += cBlockWidth)
{
for (var by = 0; by < cBlockHeight; ++by)
{
for (var bx = 0; bx < cBlockWidth; bx += 2)
{
var i4 = reader.Read8();
var index = (width * (y + by) + (x + bx));
if ((by + y) >= height)
{
continue;
}
if ((bx + x) < width)
{
data[index] = new aRGBA(sNybbleToByte[(i4 >> 4) & 0xF]);
}
if ((bx + x + 1) < width)
{
data[index + 1] = new aRGBA(sNybbleToByte[i4 & 0xF]);
}
}
}
}
}
return(data);
}
static aRGBA[] loadRGB5A3(aBinaryReader reader, int width, int height)
{
var data = new aRGBA[width * height];
const int cBlockWidth = 4, cBlockHeight = 4;
for (var y = 0; y < height; y += cBlockHeight)
{
for (var x = 0; x < width; x += cBlockWidth)
{
for (var by = 0; by < cBlockHeight; ++by)
{
for (var bx = 0; bx < cBlockWidth; ++bx)
{
var color = reader.Read16();
if ((bx + x) >= width || (by + y) >= height)
{
continue;
}
data[(width * (y + by)) + (x + bx)] = (
(color & 0x8000) != 0 ?
aRGBA.FromRGB5(color) :
aRGBA.FromRGB4A3(color)
);
}
}
}
}
return(data);
}
static aRGBA[] loadIA4(aBinaryReader reader, int width, int height)
{
var data = new aRGBA[width * height];
const int cBlockWidth = 8, cBlockHeight = 4;
for (var y = 0; y < height; y += cBlockHeight)
{
for (var x = 0; x < width; x += cBlockWidth)
{
for (var by = 0; by < cBlockHeight; ++by)
{
for (var bx = 0; bx < cBlockWidth; ++bx)
{
var ia4 = reader.Read8();
if ((bx + x) >= width || (by + y) >= height)
{
continue;
}
data[width * (y + by) + (x + bx)] = new aRGBA(sNybbleToByte[ia4 & 0xF], sNybbleToByte[(ia4 >> 4) & 0xF]);
}
}
}
}
return(data);
}
static aRGBA[] loadIA8(aBinaryReader reader, int width, int height)
{
var data = new aRGBA[width * height];
const int cBlockWidth = 4, cBlockHeight = 4;
for (var y = 0; y < height; y += cBlockHeight)
{
for (var x = 0; x < width; x += cBlockWidth)
{
for (var by = 0; by < cBlockHeight; ++by)
{
for (var bx = 0; bx < cBlockWidth; ++bx)
{
var intensity = reader.Read8();
var alpha = reader.Read8();
if ((bx + x) >= width || (by + y) >= height)
{
continue;
}
data[width * (y + by) + (x + bx)] = new aRGBA(intensity, alpha);
}
}
}
}
return(data);
}
public static aRGBA[] FromST3C1(ulong st3c1)
{
var colors = new aRGBA[4];
colors[0] = FromRGB565((ushort)((st3c1 >> 48) & 0xFFFF));
colors[1] = FromRGB565((ushort)((st3c1 >> 32) & 0xFFFF));
if (colors[0].ARGB > colors[1].ARGB)
{
colors[2] = Lerp(colors[0], colors[1], 0.333333f);
colors[3] = Lerp(colors[0], colors[1], 0.666666f);
}
else
{
colors[2] = Lerp(colors[0], colors[1], 0.5f);
colors[3] = new aRGBA(0, 0);
}
var data = new aRGBA[16];
var bits = 30;
for (var y = 0; y < 4; y++)
{
for (var x = 0; x < 4; x++)
{
data[4 * y + x] = colors[(st3c1 >> bits) & 0x3];
bits -= 2;
}
}
return(data);
}
void loadPaletteDataIA8(aBinaryReader reader)
{
for (int i = 0; i < mEntryCount; ++i)
{
var i8 = reader.Read8();
var a8 = reader.Read8();
mData[i] = new aRGBA(i8, a8);
}
}
public static aRGBA Lerp(aRGBA from, aRGBA to, float percent)
{
return(new aRGBA
(
(int)(from.r + (to.r - from.r) * percent),
(int)(from.g + (to.g - from.g) * percent),
(int)(from.b + (to.b - from.b) * percent),
(int)(from.a + (to.a - from.a) * percent)
));
}
static aRGBA[] loadRGBA8(aBinaryReader reader, int width, int height)
{
var data = new aRGBA[width * height];
const int cBlockWidth = 4, cBlockHeight = 4;
var colors = new uint[16];
for (var y = 0; y < height; y += cBlockHeight)
{
for (var x = 0; x < width; x += cBlockWidth)
{
for (var by = 0; by < cBlockHeight && (y + by) < height; ++by) // AR
{
for (var bx = 0; bx < cBlockWidth && (x + bx) < width; ++bx)
{
colors[(cBlockWidth * by) + bx] = (uint)(reader.Read16() << 16);
}
}
for (var by = 0; by < cBlockHeight && (y + by) < height; ++by) // GB
{
for (var bx = 0; bx < cBlockWidth && (x + bx) < width; ++bx)
{
colors[(cBlockWidth * by) + bx] |= reader.Read16();
}
}
for (var by = 0; by < cBlockHeight; ++by)
{
for (var bx = 0; bx < cBlockWidth; ++bx)
{
if ((x + bx) >= width || (y + by) >= height)
{
continue;
}
data[width * (y + by) + (x + bx)] = aRGBA.FromARGB8(colors[(cBlockWidth * by) + bx]);
}
}
}
}
return(data);
}
public aRGBA(aRGBA color, int alpha)
: this(color.r, color.g, color.b, alpha)
{
}
public aRGBA(aRGBA color)
: this(color.r, color.g, color.b, color.a)
{
}
public static aRGBA Lerp(aRGBA from, aRGBA to, float percent)
{
return new aRGBA
(
(int)(from.r + (to.r - from.r) * percent),
(int)(from.g + (to.g - from.g) * percent),
(int)(from.b + (to.b - from.b) * percent),
(int)(from.a + (to.a - from.a) * percent)
);
}
public static aRGBA[] FromST3C1(ulong st3c1)
{
var colors = new aRGBA[4];
colors[0] = FromRGB565((ushort)((st3c1 >> 48) & 0xFFFF));
colors[1] = FromRGB565((ushort)((st3c1 >> 32) & 0xFFFF));
if (colors[0].ARGB > colors[1].ARGB) {
colors[2] = Lerp(colors[0], colors[1], 0.333333f);
colors[3] = Lerp(colors[0], colors[1], 0.666666f);
}
else {
colors[2] = Lerp(colors[0], colors[1], 0.5f);
colors[3] = new aRGBA(0, 0);
}
var data = new aRGBA[16];
var bits = 30;
for (var y = 0; y < 4; y++) {
for (var x = 0; x < 4; x++) {
data[4 * y + x] = colors[(st3c1 >> bits) & 0x3];
bits -= 2;
}
}
return data;
}
public aRGBA(aRGBA color, int alpha)
: this(color.r, color.g, color.b, alpha)
{
}
public aRGBA(aRGBA color)
: this(color.r, color.g, color.b, color.a)
{
}