public void TestSetAllColors()
{
uint color = 0xabcdef;
VertexData vertexData = new VertexData(4);
vertexData.SetColor(color);
for (int i = 0; i < vertexData.NumVertices; ++i)
{
Assert.AreEqual(color, vertexData.ColorAt(i), "wrong color");
}
}
public void TestSetAllColorsAndAlphas()
{
uint color = 0xabcdef;
float alpha = 0.5f;
VertexData vertexData = new VertexData(4);
vertexData.SetColor(color);
vertexData.SetAlpha(alpha);
for (int i=0; i<vertexData.NumVertices; ++i)
{
Assert.AreEqual(color, vertexData.ColorAt(i), "wrong color");
AssertAreEqualWithSmallError(alpha, vertexData.AlphaAt(i), "wrong alpha", 0.005f);
}
}
public void TestScaleAlphaWithoutPMA()
{
VertexData vertexData = new VertexData(1);
vertexData.SetColor(ColorUtil.GetRGB(80, 60, 40), 128/255.0f);
vertexData.ScaleAlphaBy(0.5f);
CompareVertexColor(VertexColorHelper.CreateVertexColor(80, 60, 40, 64), vertexData.VertexColors[0]);
}
public void TestScaleAlphaWithPMA()
{
VertexData vertexData = new VertexData(1, true);
vertexData.SetColor(ColorUtil.GetRGB(80, 60, 40), 204/255.0f);
vertexData.ScaleAlphaBy(0.8f);
CompareVertexColor(VertexColorHelper.CreateVertexColor(
(byte)(80 * 0.64f + 0.5f),
(byte)(60 * 0.64f + 0.5f),
(byte)(40 * 0.64f + 0.5f),
(byte)(204 * 0.8f + 0.5f)), vertexData.VertexColors[0]);
}
public void TestPremultipliedAlpha()
{
VertexData vertexData = new VertexData(1);
vertexData.SetColor(ColorUtil.GetRGB(80, 60, 40), 204/255.0f);
vertexData.SetPremultipliedAlpha(true, true);
CompareVertexColor(VertexColorHelper.CreateVertexColor(64, 48, 32, 204), vertexData.VertexColors[0]);
vertexData.SetPremultipliedAlpha(false, true);
CompareVertexColor(VertexColorHelper.CreateVertexColor(80, 60, 40, 204), vertexData.VertexColors[0]);
}