78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/**************************************************************************
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*
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* Copyright 2007 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef SP_SETUP_H
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#define SP_SETUP_H
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struct setup_context;
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struct softpipe_context;
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/**
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* Attribute interpolation mode
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*/
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enum sp_interp_mode {
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SP_INTERP_POS, /**< special case for frag position */
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SP_INTERP_CONSTANT,
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SP_INTERP_LINEAR,
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SP_INTERP_PERSPECTIVE
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};
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struct sp_setup_info {
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unsigned valid;
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struct {
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unsigned interp:8; /**< SP_INTERP_X */
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int src_index:8;
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} attrib[PIPE_MAX_SHADER_OUTPUTS];
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};
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void
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sp_setup_tri(struct setup_context *setup,
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const float (*v0)[4],
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const float (*v1)[4],
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const float (*v2)[4]);
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void
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sp_setup_line(struct setup_context *setup,
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const float (*v0)[4],
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const float (*v1)[4]);
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void
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sp_setup_point( struct setup_context *setup,
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const float (*v0)[4] );
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static inline unsigned
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sp_clamp_viewport_idx(int idx)
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{
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return (PIPE_MAX_VIEWPORTS > idx && idx >= 0) ? idx : 0;
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}
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struct setup_context *sp_setup_create_context( struct softpipe_context *softpipe );
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void sp_setup_prepare( struct setup_context *setup );
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void sp_setup_destroy_context( struct setup_context *setup );
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#endif
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