wined3d: Add a comment about D3DSAMP_MAXMIPLEVEL.

eafc00e1 · Stefan Dösinger · Alexandre Julliard · 531ec226 · eafc00e1
Commit eafc00e1 authored Aug 30, 2009 by Stefan Dösinger Committed by Alexandre Julliard Aug 31, 2009
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basetexture.c dlls/wined3d/basetexture.c +4 -0

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--- a/dlls/wined3d/basetexture.c
+++ b/dlls/wined3d/basetexture.c
@@ -432,6 +432,10 @@ void basetexture_apply_state_changes(IWineD3DBaseTexture *iface,
            } else {
                glValue = states[WINED3DTEXSTA_MAXMIPLEVEL];
            }
+            /* Note that D3DSAMP_MAXMIPLEVEL specifies the biggest mipmap(default 0), while
+             * GL_TEXTURE_MAX_LEVEL specifies the smallest mimap used(default 1000).
+             * So D3DSAMP_MAXMIPLEVEL is the same as GL_TEXTURE_BASE_LEVEL.
+             */
            glTexParameteri(textureDimensions, GL_TEXTURE_BASE_LEVEL, glValue);
        }
    }