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pgraph: use bit flags instead of incremental enum for ShaderAttrib flags
The flags in the enum are actual bit flags instead of indices. This allows for setting/clearing a mask of flags in one go, rather than having to set each flag in its own function call. Existing code shouldn't be affected. Closes #688
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from panda3d import core | ||
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def test_shaderattrib_flags(): | ||
# Ensure the old single-flag behavior still works | ||
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shattr = core.ShaderAttrib.make() | ||
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# Make sure we have the flag | ||
shattr = shattr.set_flag(core.ShaderAttrib.F_hardware_skinning, True) | ||
assert shattr.get_flag(core.ShaderAttrib.F_hardware_skinning) | ||
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# Make sure we don't have a flag that we didn't set | ||
assert not shattr.get_flag(core.ShaderAttrib.F_subsume_alpha_test) | ||
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# Clear it, we should not longer have the flag | ||
shattr = shattr.clear_flag(core.ShaderAttrib.F_hardware_skinning) | ||
assert not shattr.get_flag(core.ShaderAttrib.F_hardware_skinning) | ||
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# Set a flag to false, we shouldn't have it | ||
shattr = shattr.set_flag(core.ShaderAttrib.F_hardware_skinning, False) | ||
assert not shattr.get_flag(core.ShaderAttrib.F_hardware_skinning) | ||
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# Ensure the new behavior works | ||
shattr = core.ShaderAttrib.make() | ||
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# Make sure we have the flags | ||
shattr = shattr.set_flag(core.ShaderAttrib.F_hardware_skinning | core.ShaderAttrib.F_subsume_alpha_test, True) | ||
assert shattr.get_flag(core.ShaderAttrib.F_hardware_skinning | core.ShaderAttrib.F_subsume_alpha_test) | ||
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# Make sure we don't have a flag that we didn't set | ||
assert not shattr.get_flag(core.ShaderAttrib.F_shader_point_size) | ||
# ...group of flags we didn't set | ||
assert not shattr.get_flag(core.ShaderAttrib.F_disable_alpha_write | core.ShaderAttrib.F_shader_point_size) | ||
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# Make sure they clear correctly | ||
shattr = shattr.clear_flag(core.ShaderAttrib.F_hardware_skinning | core.ShaderAttrib.F_subsume_alpha_test) | ||
assert not shattr.get_flag(core.ShaderAttrib.F_hardware_skinning | core.ShaderAttrib.F_subsume_alpha_test) | ||
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# Set group to false | ||
shattr = shattr.set_flag(core.ShaderAttrib.F_hardware_skinning | core.ShaderAttrib.F_subsume_alpha_test, False) | ||
assert not shattr.get_flag(core.ShaderAttrib.F_hardware_skinning | core.ShaderAttrib.F_subsume_alpha_test) |