yukijoou/kwin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Make mipmap filters other than GL_LINEAR_MIPMAP_LINEAR work

Browse source 
GLTexture would set both the minification and magnification filters
to GL_NEAREST if the texture filter was set to any mipmap filter other
than GL_LINEAR_MIPMAP_LINEAR.
This commit is contained in:
Fredrik Höglund 2014-12-10 20:16:40 +01:00
parent aefadfaa6a
commit ccf1bad426
1 changed files with 27 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
libkwineffects/kwingltexture.cpp
View file

@ -306,26 +306,34 @@ void GLTexture::bind()
d->onDamage();
}
if (d->m_filterChanged) {
if (d->m_filter == GL_LINEAR_MIPMAP_LINEAR) {
// trilinear filtering requested, but is it possible?
if (d->s_supportsFramebufferObjects && d->m_canUseMipmaps) {
glTexParameteri(d->m_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(d->m_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
} else {
// can't use trilinear, so use bilinear
d->m_filter = GL_LINEAR;
glTexParameteri(d->m_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(d->m_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
} else if (d->m_filter == GL_LINEAR) {
glTexParameteri(d->m_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(d->m_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
} else {
// if neither trilinear nor bilinear, default to fast filtering
d->m_filter = GL_NEAREST;
glTexParameteri(d->m_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(d->m_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
GLenum minFilter = GL_NEAREST;
GLenum magFilter = GL_NEAREST;
switch (d->m_filter) {
case GL_NEAREST:
minFilter = magFilter = GL_NEAREST;
break;
case GL_LINEAR:
minFilter = magFilter = GL_LINEAR;
break;
case GL_NEAREST_MIPMAP_NEAREST:
case GL_NEAREST_MIPMAP_LINEAR:
magFilter = GL_NEAREST;
minFilter = d->m_canUseMipmaps ? d->m_filter : GL_NEAREST;
break;
case GL_LINEAR_MIPMAP_NEAREST:
case GL_LINEAR_MIPMAP_LINEAR:
magFilter = GL_LINEAR;
minFilter = d->m_canUseMipmaps ? d->m_filter : GL_LINEAR;
break;
}
glTexParameteri(d->m_target, GL_TEXTURE_MIN_FILTER, minFilter);
glTexParameteri(d->m_target, GL_TEXTURE_MAG_FILTER, magFilter);
d->m_filterChanged = false;
}
if (d->m_wrapModeChanged) {