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46 lines
1.9 KiB
46 lines
1.9 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: Contains 2D clipping routines |
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// |
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// $Revision: $ |
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// $NoKeywords: $ |
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//=============================================================================// |
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#ifndef CLIP2D_H |
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#define CLIP2D_H |
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namespace vgui |
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{ |
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struct Vertex_t; |
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} |
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//----------------------------------------------------------------------------- |
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// Enable/disable scissoring... |
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//----------------------------------------------------------------------------- |
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void EnableScissor( bool enable ); |
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//----------------------------------------------------------------------------- |
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// For simulated scissor tests... |
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//----------------------------------------------------------------------------- |
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void SetScissorRect( int left, int top, int right, int bottom ); |
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void GetScissorRect( int &left, int &top, int &right, int &bottom, bool &enabled ); |
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//----------------------------------------------------------------------------- |
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// Clips a line segment to the current scissor rectangle |
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//----------------------------------------------------------------------------- |
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bool ClipLine( const vgui::Vertex_t *pInVerts, vgui::Vertex_t* pOutVerts ); |
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//----------------------------------------------------------------------------- |
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// Purpose: Does a scissor clip of the input rectangle. |
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// Returns false if it is completely clipped off. |
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//----------------------------------------------------------------------------- |
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bool ClipRect( const vgui::Vertex_t &inUL, const vgui::Vertex_t &inLR, |
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vgui::Vertex_t *pOutUL, vgui::Vertex_t *pOutLR ); |
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//----------------------------------------------------------------------------- |
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// Clips a polygon to the screen area |
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//----------------------------------------------------------------------------- |
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int ClipPolygon( int iCount, vgui::Vertex_t *pVerts, int iTranslateX, int iTranslateY, vgui::Vertex_t ***pppOutVertex ); |
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#endif // CLIP2D_H
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