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