RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 06:57:46 +00:00
Code Issues Activity Actions

LibGL: Implement "clamp" wrap mode

Browse source
This commit is contained in:
Stephan Unverwerth 2021-08-11 21:18:01 +02:00 • committed by Andreas Kling
parent 12785849aa
commit 8902efa52d
2 changed files with 23 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

19
Userland/Libraries/LibGL/Tex/Sampler2D.cpp
View file

@ -16,6 +16,11 @@ static constexpr float wrap_repeat(float value)
return value - floorf(value);
}
static constexpr float wrap_clamp(float value)
{
return clamp(value, 0.0f, 1.0f);
}
FloatVector4 Sampler2D::sample(FloatVector2 const& uv) const
{
// FIXME: Calculate the correct mipmap level here, need to receive uv derivatives for that
@ -31,6 +36,13 @@ FloatVector4 Sampler2D::sample(FloatVector2 const& uv) const
x = wrap_repeat(x);
break;
// FIXME: These clamp modes actually have slightly different behaviour
case GL_CLAMP:
case GL_CLAMP_TO_BORDER:
case GL_CLAMP_TO_EDGE:
x = wrap_clamp(x);
break;
default:
VERIFY_NOT_REACHED();
}
@ -40,6 +52,13 @@ FloatVector4 Sampler2D::sample(FloatVector2 const& uv) const
y = wrap_repeat(y);
break;
// FIXME: These clamp modes actually have slightly different behaviour
case GL_CLAMP:
case GL_CLAMP_TO_BORDER:
case GL_CLAMP_TO_EDGE:
y = wrap_clamp(y);
break;
default:
VERIFY_NOT_REACHED();
}