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8d4039ecdb
This makes it more similar to llvmpipe. It also allows us to let draw emit code handle things like getting zeros for non-existing vs outputs automatically. There probably isn't really any overhead either way, there isn't really any "simply copy everything" code in the emit path it would copy each attrib individually just the same. Likewise, we still do another mapping step in softpipe as the layout may still not match exactly (same as in llvmpipe, should probably nuke the pointless mapping in both drivers). This fixes the piglit arb_fragment_layer_viewport no_gs/no_write tests. Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
77 lines
2.4 KiB
C
77 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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