95 lines
2.4 KiB
Text
95 lines
2.4 KiB
Text
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file texMatrixAttrib.I
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* @author drose
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* @date 2002-03-14
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*/
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/**
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* Use TexMatrixAttrib::make() to construct a new TexMatrixAttrib object.
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*/
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INLINE TexMatrixAttrib::
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TexMatrixAttrib() {
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}
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/**
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* Use TexMatrixAttrib::make() to construct a new TexMatrixAttrib object.
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*/
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INLINE TexMatrixAttrib::
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TexMatrixAttrib(const TexMatrixAttrib ©) :
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_stages(copy._stages)
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{
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}
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/**
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* Returns the override value associated with the indicated stage.
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*/
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INLINE int TexMatrixAttrib::
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get_override(TextureStage *stage) const {
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Stages::const_iterator si;
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si = _stages.find(StageNode(stage));
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if (si != _stages.end()) {
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return (*si)._override;
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}
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nassert_raise("Specified TextureStage not included in attrib");
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return 0;
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}
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/**
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* Returns the union of the Geom::GeomRendering bits that will be required
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* once this TexMatrixAttrib is applied to a geom which includes the indicated
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* geom_rendering bits.
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*/
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INLINE int TexMatrixAttrib::
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get_geom_rendering(int geom_rendering) const {
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if ((geom_rendering & Geom::GR_point_sprite) != 0) {
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if (!is_empty()) {
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geom_rendering |= Geom::GR_point_sprite_tex_matrix;
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}
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}
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return geom_rendering;
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}
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/**
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*
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*/
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INLINE TexMatrixAttrib::StageNode::
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StageNode(const TextureStage *stage) :
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// Yeah, we cast away the constness here. Just too much trouble to deal
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// with it properly.
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_stage((TextureStage *)stage),
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_override(0)
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{
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}
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/**
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* Compares the full attributes of StageNodes (as opposed to just the pointer
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* compared by CompareTextureStagePointer, below).
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*/
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INLINE bool TexMatrixAttrib::StageNode::
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operator < (const TexMatrixAttrib::StageNode &other) const {
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if (_stage != other._stage) {
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return _stage < other._stage;
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}
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if (_transform != other._transform) {
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return _transform < other._transform;
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}
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return _override < other._override;
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}
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/**
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* This STL function object is used to sort a list of texture stages in order
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* by pointer.
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*/
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INLINE bool TexMatrixAttrib::CompareTextureStagePointer::
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operator () (const TexMatrixAttrib::StageNode &a,
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const TexMatrixAttrib::StageNode &b) const {
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return a._stage < b._stage;
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}
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