2007-09-25 13:20:53 +01:00
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/**************************************************************************
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2008-04-08 17:59:28 +01:00
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*
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2007-09-25 13:20:53 +01:00
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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2008-04-08 17:59:28 +01:00
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*
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2007-09-25 13:20:53 +01:00
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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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2008-04-08 17:59:28 +01:00
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*
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2007-09-25 13:20:53 +01:00
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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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2008-04-08 17:59:28 +01:00
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*
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2007-09-25 13:20:53 +01:00
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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 TUNGSTEN GRAPHICS 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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2008-04-08 17:59:28 +01:00
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*
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2007-09-25 13:20:53 +01:00
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**************************************************************************/
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/**
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2008-11-11 15:16:51 +00:00
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* Interface between 'draw' module's output and the softpipe rasterizer/setup
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* code. When the 'draw' module has finished filling a vertex buffer, the
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* draw_arrays() functions below will be called. Loop over the vertices and
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* call the point/line/tri setup functions.
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2008-04-08 17:59:28 +01:00
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*
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2008-01-23 20:17:50 +00:00
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* Authors
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* Brian Paul
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2007-09-25 13:20:53 +01:00
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*/
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#include "sp_context.h"
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2009-08-23 11:22:41 +01:00
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#include "sp_setup.h"
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2008-02-15 01:58:50 +00:00
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#include "sp_state.h"
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2008-01-23 20:17:50 +00:00
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#include "sp_prim_vbuf.h"
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2008-02-15 08:50:12 +00:00
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#include "draw/draw_context.h"
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#include "draw/draw_vbuf.h"
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2008-08-25 00:48:55 +01:00
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#include "util/u_memory.h"
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2009-07-24 18:17:05 +01:00
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#include "util/u_prim.h"
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2007-09-25 13:20:53 +01:00
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2008-01-23 20:17:50 +00:00
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#define SP_MAX_VBUF_INDEXES 1024
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#define SP_MAX_VBUF_SIZE 4096
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2007-09-25 13:20:53 +01:00
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2008-04-08 17:59:28 +01:00
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typedef const float (*cptrf4)[4];
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2007-09-25 13:20:53 +01:00
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/**
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2008-01-23 20:17:50 +00:00
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* Subclass of vbuf_render.
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2007-09-25 13:20:53 +01:00
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*/
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2008-01-23 20:17:50 +00:00
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struct softpipe_vbuf_render
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2007-09-25 13:20:53 +01:00
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{
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2008-01-23 20:17:50 +00:00
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struct vbuf_render base;
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struct softpipe_context *softpipe;
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2009-08-23 11:22:41 +01:00
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struct setup_context *setup;
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2008-01-23 20:17:50 +00:00
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uint prim;
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uint vertex_size;
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2009-02-19 14:46:23 +00:00
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uint nr_vertices;
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2009-02-17 12:20:05 +00:00
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uint vertex_buffer_size;
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2008-01-23 20:17:50 +00:00
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void *vertex_buffer;
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};
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2007-09-25 13:20:53 +01:00
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2008-01-23 20:17:50 +00:00
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/** cast wrapper */
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static struct softpipe_vbuf_render *
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softpipe_vbuf_render(struct vbuf_render *vbr)
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2007-09-25 13:20:53 +01:00
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{
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2008-01-23 20:17:50 +00:00
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return (struct softpipe_vbuf_render *) vbr;
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2007-09-25 13:20:53 +01:00
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}
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2009-08-23 11:22:41 +01:00
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2008-01-23 20:17:50 +00:00
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static const struct vertex_info *
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sp_vbuf_get_vertex_info(struct vbuf_render *vbr)
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2007-09-25 13:20:53 +01:00
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{
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2008-01-23 20:17:50 +00:00
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struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
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2008-02-15 01:58:50 +00:00
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return softpipe_get_vbuf_vertex_info(cvbr->softpipe);
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2007-09-25 13:20:53 +01:00
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}
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2009-02-17 12:20:05 +00:00
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static boolean
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2008-01-23 20:17:50 +00:00
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sp_vbuf_allocate_vertices(struct vbuf_render *vbr,
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2009-02-17 12:20:05 +00:00
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ushort vertex_size, ushort nr_vertices)
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2007-09-25 13:20:53 +01:00
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{
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2008-01-23 20:17:50 +00:00
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struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
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2009-02-17 12:20:05 +00:00
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unsigned size = vertex_size * nr_vertices;
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if (cvbr->vertex_buffer_size < size) {
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2009-03-05 17:01:53 +00:00
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align_free(cvbr->vertex_buffer);
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2009-02-17 12:20:05 +00:00
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cvbr->vertex_buffer = align_malloc(size, 16);
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cvbr->vertex_buffer_size = size;
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}
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2008-01-23 20:17:50 +00:00
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cvbr->vertex_size = vertex_size;
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2009-02-19 14:46:23 +00:00
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cvbr->nr_vertices = nr_vertices;
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2009-02-17 12:20:05 +00:00
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return cvbr->vertex_buffer != NULL;
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2007-09-25 13:20:53 +01:00
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}
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2008-01-23 20:17:50 +00:00
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static void
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2009-02-17 12:20:05 +00:00
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sp_vbuf_release_vertices(struct vbuf_render *vbr)
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{
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/* keep the old allocation for next time */
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}
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static void *
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sp_vbuf_map_vertices(struct vbuf_render *vbr)
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2007-09-25 13:20:53 +01:00
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{
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2008-01-23 20:17:50 +00:00
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struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
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2009-02-17 12:20:05 +00:00
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return cvbr->vertex_buffer;
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}
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static void
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sp_vbuf_unmap_vertices(struct vbuf_render *vbr,
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ushort min_index,
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ushort max_index )
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{
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struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
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assert( cvbr->vertex_buffer_size >= (max_index+1) * cvbr->vertex_size );
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/* do nothing */
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2007-09-25 13:20:53 +01:00
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}
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2008-03-17 10:10:45 +00:00
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static boolean
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2008-01-23 20:17:50 +00:00
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sp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim)
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2007-09-25 13:20:53 +01:00
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{
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2008-01-23 20:17:50 +00:00
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struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
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2009-08-23 11:22:41 +01:00
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struct setup_context *setup_ctx = cvbr->setup;
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2008-04-16 12:20:39 +01:00
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2009-10-07 20:17:20 +01:00
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sp_setup_prepare( setup_ctx );
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2008-04-16 12:20:39 +01:00
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2009-07-24 18:17:05 +01:00
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cvbr->softpipe->reduced_prim = u_reduced_prim(prim);
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2008-05-12 17:30:05 +01:00
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cvbr->prim = prim;
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return TRUE;
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2008-04-08 17:59:28 +01:00
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2007-09-25 13:20:53 +01:00
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}
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2008-05-12 16:16:04 +01:00
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static INLINE cptrf4 get_vert( const void *vertex_buffer,
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int index,
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int stride )
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{
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return (cptrf4)((char *)vertex_buffer + index * stride);
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}
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2008-01-23 20:17:50 +00:00
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2008-11-11 15:16:51 +00:00
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/**
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* draw elements / indexed primitives
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*/
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2008-01-23 20:17:50 +00:00
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static void
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2008-05-12 16:16:04 +01:00
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sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr)
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2008-01-23 20:17:50 +00:00
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{
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struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
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struct softpipe_context *softpipe = cvbr->softpipe;
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2008-11-11 15:16:51 +00:00
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const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float);
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2008-05-12 16:16:04 +01:00
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const void *vertex_buffer = cvbr->vertex_buffer;
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2009-08-23 11:22:41 +01:00
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struct setup_context *setup_ctx = cvbr->setup;
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2008-11-11 15:16:51 +00:00
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unsigned i;
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2008-04-14 11:32:50 +01:00
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2008-01-23 20:17:50 +00:00
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switch (cvbr->prim) {
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2008-05-12 16:16:04 +01:00
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case PIPE_PRIM_POINTS:
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for (i = 0; i < nr; i++) {
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2009-10-07 20:17:20 +01:00
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sp_setup_point( setup_ctx,
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2008-05-12 16:16:04 +01:00
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get_vert(vertex_buffer, indices[i-0], stride) );
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2008-01-23 20:17:50 +00:00
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}
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break;
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case PIPE_PRIM_LINES:
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2008-05-12 16:16:04 +01:00
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for (i = 1; i < nr; i += 2) {
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2009-10-07 20:17:20 +01:00
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sp_setup_line( setup_ctx,
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2008-05-12 16:16:04 +01:00
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride) );
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}
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break;
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2008-04-08 17:59:28 +01:00
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2008-05-12 16:16:04 +01:00
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case PIPE_PRIM_LINE_STRIP:
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for (i = 1; i < nr; i ++) {
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2009-10-07 20:17:20 +01:00
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sp_setup_line( setup_ctx,
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2008-05-12 16:16:04 +01:00
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride) );
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2008-01-23 20:17:50 +00:00
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}
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break;
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2008-05-12 16:16:04 +01:00
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case PIPE_PRIM_LINE_LOOP:
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for (i = 1; i < nr; i ++) {
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2009-10-07 20:17:20 +01:00
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sp_setup_line( setup_ctx,
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2008-05-12 16:16:04 +01:00
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride) );
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}
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if (nr) {
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2009-10-07 20:17:20 +01:00
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sp_setup_line( setup_ctx,
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2008-05-12 16:16:04 +01:00
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get_vert(vertex_buffer, indices[nr-1], stride),
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get_vert(vertex_buffer, indices[0], stride) );
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}
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break;
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2008-04-08 17:59:28 +01:00
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2008-05-12 16:16:04 +01:00
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case PIPE_PRIM_TRIANGLES:
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2009-08-18 16:21:12 +01:00
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if (softpipe->rasterizer->flatshade_first) {
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for (i = 2; i < nr; i += 3) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride),
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get_vert(vertex_buffer, indices[i-2], stride) );
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}
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2009-08-18 16:21:12 +01:00
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}
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else {
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for (i = 2; i < nr; i += 3) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[i-2], stride),
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride) );
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}
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2008-05-12 16:16:04 +01:00
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}
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break;
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case PIPE_PRIM_TRIANGLE_STRIP:
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2009-08-18 16:21:12 +01:00
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if (softpipe->rasterizer->flatshade_first) {
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for (i = 2; i < nr; i += 1) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[i+(i&1)-1], stride),
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get_vert(vertex_buffer, indices[i-(i&1)], stride),
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get_vert(vertex_buffer, indices[i-2], stride) );
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}
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2009-08-18 16:21:12 +01:00
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}
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else {
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for (i = 2; i < nr; i += 1) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[i+(i&1)-2], stride),
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get_vert(vertex_buffer, indices[i-(i&1)-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride) );
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}
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2008-01-23 20:17:50 +00:00
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}
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break;
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2008-05-12 16:16:04 +01:00
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case PIPE_PRIM_TRIANGLE_FAN:
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2009-08-18 16:21:12 +01:00
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if (softpipe->rasterizer->flatshade_first) {
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for (i = 2; i < nr; i += 1) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[i-0], stride),
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get_vert(vertex_buffer, indices[0], stride),
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get_vert(vertex_buffer, indices[i-1], stride) );
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}
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2009-08-18 16:21:12 +01:00
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}
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else {
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for (i = 2; i < nr; i += 1) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[0], stride),
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-0], stride) );
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}
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2008-05-12 16:16:04 +01:00
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}
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break;
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2009-06-04 01:33:07 +01:00
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2008-05-12 16:16:04 +01:00
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case PIPE_PRIM_QUADS:
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2009-08-18 16:21:12 +01:00
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if (softpipe->rasterizer->flatshade_first) {
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for (i = 3; i < nr; i += 4) {
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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get_vert(vertex_buffer, indices[i-2], stride),
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get_vert(vertex_buffer, indices[i-1], stride),
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get_vert(vertex_buffer, indices[i-3], stride) );
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2009-10-07 20:17:20 +01:00
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sp_setup_tri( setup_ctx,
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2009-06-10 04:52:37 +01:00
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|
|
get_vert(vertex_buffer, indices[i-1], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-0], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-3], stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 3; i < nr; i += 4) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-3], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-2], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-0], stride) );
|
|
|
|
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-2], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-1], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-0], stride) );
|
|
|
|
}
|
2008-05-12 16:16:04 +01:00
|
|
|
}
|
|
|
|
break;
|
2009-06-04 01:33:07 +01:00
|
|
|
|
2008-05-12 16:16:04 +01:00
|
|
|
case PIPE_PRIM_QUAD_STRIP:
|
2009-08-18 16:21:12 +01:00
|
|
|
if (softpipe->rasterizer->flatshade_first) {
|
|
|
|
for (i = 3; i < nr; i += 2) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-0], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-1], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-3], stride));
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-2], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-0], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-3], stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 3; i < nr; i += 2) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-3], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-2], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-0], stride) );
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-1], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-3], stride),
|
|
|
|
get_vert(vertex_buffer, indices[i-0], stride) );
|
|
|
|
}
|
2008-05-12 16:16:04 +01:00
|
|
|
}
|
|
|
|
break;
|
2009-06-04 01:33:07 +01:00
|
|
|
|
|
|
|
case PIPE_PRIM_POLYGON:
|
2009-06-10 04:52:37 +01:00
|
|
|
/* Almost same as tri fan but the _first_ vertex specifies the flat
|
|
|
|
* shading color. Note that the first polygon vertex is passed as
|
|
|
|
* the last triangle vertex here.
|
|
|
|
* flatshade_first state makes no difference.
|
|
|
|
*/
|
2009-06-04 01:33:07 +01:00
|
|
|
for (i = 2; i < nr; i += 1) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-04 01:33:07 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-0], stride),
|
2008-05-12 17:30:05 +01:00
|
|
|
get_vert(vertex_buffer, indices[i-1], stride),
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, indices[0], stride) );
|
2009-06-04 01:33:07 +01:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2008-05-12 16:16:04 +01:00
|
|
|
default:
|
|
|
|
assert(0);
|
2007-09-25 13:20:53 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-03-13 22:53:44 +00:00
|
|
|
/**
|
|
|
|
* This function is hit when the draw module is working in pass-through mode.
|
|
|
|
* It's up to us to convert the vertex array into point/line/tri prims.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
|
|
|
|
{
|
|
|
|
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
|
|
|
|
struct softpipe_context *softpipe = cvbr->softpipe;
|
2009-08-23 11:22:41 +01:00
|
|
|
struct setup_context *setup_ctx = cvbr->setup;
|
2008-05-12 16:16:04 +01:00
|
|
|
const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float);
|
2008-11-11 15:16:51 +00:00
|
|
|
const void *vertex_buffer =
|
|
|
|
(void *) get_vert(cvbr->vertex_buffer, start, stride);
|
2008-03-14 08:42:45 +00:00
|
|
|
unsigned i;
|
2008-03-13 22:53:44 +00:00
|
|
|
|
|
|
|
switch (cvbr->prim) {
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_POINTS:
|
|
|
|
for (i = 0; i < nr; i++) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_point( setup_ctx,
|
2008-05-12 16:16:04 +01:00
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
2008-03-16 16:33:59 +00:00
|
|
|
}
|
|
|
|
break;
|
2008-05-12 16:16:04 +01:00
|
|
|
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_LINES:
|
2008-05-12 16:16:04 +01:00
|
|
|
for (i = 1; i < nr; i += 2) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_line( setup_ctx,
|
2008-05-12 16:16:04 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
2008-03-16 16:33:59 +00:00
|
|
|
}
|
|
|
|
break;
|
2008-05-12 16:16:04 +01:00
|
|
|
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_LINE_STRIP:
|
2008-05-12 16:16:04 +01:00
|
|
|
for (i = 1; i < nr; i ++) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_line( setup_ctx,
|
2008-05-12 16:16:04 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
2008-03-16 16:33:59 +00:00
|
|
|
}
|
|
|
|
break;
|
2008-05-12 16:16:04 +01:00
|
|
|
|
|
|
|
case PIPE_PRIM_LINE_LOOP:
|
|
|
|
for (i = 1; i < nr; i ++) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_line( setup_ctx,
|
2008-05-12 16:16:04 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
|
|
|
}
|
|
|
|
if (nr) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_line( setup_ctx,
|
2008-05-12 16:16:04 +01:00
|
|
|
get_vert(vertex_buffer, nr-1, stride),
|
|
|
|
get_vert(vertex_buffer, 0, stride) );
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2008-03-13 22:53:44 +00:00
|
|
|
case PIPE_PRIM_TRIANGLES:
|
2009-08-18 16:21:12 +01:00
|
|
|
if (softpipe->rasterizer->flatshade_first) {
|
|
|
|
for (i = 2; i < nr; i += 3) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride),
|
|
|
|
get_vert(vertex_buffer, i-2, stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 2; i < nr; i += 3) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
|
|
|
}
|
2008-03-13 22:53:44 +00:00
|
|
|
}
|
|
|
|
break;
|
2008-05-12 16:16:04 +01:00
|
|
|
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_TRIANGLE_STRIP:
|
2009-08-18 16:21:12 +01:00
|
|
|
if (softpipe->rasterizer->flatshade_first) {
|
|
|
|
for (i = 2; i < nr; i++) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i+(i&1)-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-(i&1), stride),
|
|
|
|
get_vert(vertex_buffer, i-2, stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 2; i < nr; i++) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i+(i&1)-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-(i&1)-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
|
|
|
}
|
2008-03-16 16:33:59 +00:00
|
|
|
}
|
|
|
|
break;
|
2008-05-12 16:16:04 +01:00
|
|
|
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_TRIANGLE_FAN:
|
2009-08-18 16:21:12 +01:00
|
|
|
if (softpipe->rasterizer->flatshade_first) {
|
|
|
|
for (i = 2; i < nr; i += 1) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-0, stride),
|
|
|
|
get_vert(vertex_buffer, 0, stride),
|
|
|
|
get_vert(vertex_buffer, i-1, stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 2; i < nr; i += 1) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, 0, stride),
|
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
|
|
|
}
|
2008-03-16 16:33:59 +00:00
|
|
|
}
|
|
|
|
break;
|
2009-05-31 03:07:18 +01:00
|
|
|
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_QUADS:
|
2009-08-18 16:21:12 +01:00
|
|
|
if (softpipe->rasterizer->flatshade_first) {
|
|
|
|
for (i = 3; i < nr; i += 4) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-3, stride) );
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride),
|
|
|
|
get_vert(vertex_buffer, i-3, stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 3; i < nr; i += 4) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-3, stride),
|
|
|
|
get_vert(vertex_buffer, i-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
|
|
|
}
|
2008-03-16 16:33:59 +00:00
|
|
|
}
|
|
|
|
break;
|
2009-06-10 04:52:37 +01:00
|
|
|
|
2008-03-16 16:33:59 +00:00
|
|
|
case PIPE_PRIM_QUAD_STRIP:
|
2009-08-18 16:21:12 +01:00
|
|
|
if (softpipe->rasterizer->flatshade_first) {
|
|
|
|
for (i = 3; i < nr; i += 2) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-0, stride),
|
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-3, stride) );
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride),
|
|
|
|
get_vert(vertex_buffer, i-3, stride) );
|
|
|
|
}
|
2009-08-18 16:21:12 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
for (i = 3; i < nr; i += 2) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-3, stride),
|
|
|
|
get_vert(vertex_buffer, i-2, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
|
|
|
get_vert(vertex_buffer, i-3, stride),
|
|
|
|
get_vert(vertex_buffer, i-0, stride) );
|
|
|
|
}
|
2008-03-13 22:53:44 +00:00
|
|
|
}
|
|
|
|
break;
|
2009-05-31 03:07:18 +01:00
|
|
|
|
|
|
|
case PIPE_PRIM_POLYGON:
|
|
|
|
/* Almost same as tri fan but the _first_ vertex specifies the flat
|
|
|
|
* shading color. Note that the first polygon vertex is passed as
|
|
|
|
* the last triangle vertex here.
|
2009-06-10 04:52:37 +01:00
|
|
|
* flatshade_first state makes no difference.
|
2009-05-31 03:07:18 +01:00
|
|
|
*/
|
|
|
|
for (i = 2; i < nr; i += 1) {
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_tri( setup_ctx,
|
2009-05-31 03:07:18 +01:00
|
|
|
get_vert(vertex_buffer, i-1, stride),
|
2009-06-04 01:31:55 +01:00
|
|
|
get_vert(vertex_buffer, i-0, stride),
|
2009-06-10 04:52:37 +01:00
|
|
|
get_vert(vertex_buffer, 0, stride) );
|
2009-05-31 03:07:18 +01:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2008-03-13 22:53:44 +00:00
|
|
|
default:
|
|
|
|
assert(0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2008-01-23 20:17:50 +00:00
|
|
|
static void
|
|
|
|
sp_vbuf_destroy(struct vbuf_render *vbr)
|
2007-09-25 13:20:53 +01:00
|
|
|
{
|
2008-01-23 20:17:50 +00:00
|
|
|
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
|
2009-10-07 20:17:20 +01:00
|
|
|
sp_setup_destroy_context(cvbr->setup);
|
2008-01-23 20:17:50 +00:00
|
|
|
FREE(cvbr);
|
2007-09-25 13:20:53 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-01-23 20:17:50 +00:00
|
|
|
/**
|
2009-08-23 11:22:41 +01:00
|
|
|
* Create the post-transform vertex handler for the given context.
|
2008-01-23 20:17:50 +00:00
|
|
|
*/
|
2009-08-23 11:22:41 +01:00
|
|
|
struct vbuf_render *
|
|
|
|
sp_create_vbuf_backend(struct softpipe_context *sp)
|
2007-09-25 13:20:53 +01:00
|
|
|
{
|
2009-08-23 11:22:41 +01:00
|
|
|
struct softpipe_vbuf_render *cvbr = CALLOC_STRUCT(softpipe_vbuf_render);
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2007-09-25 13:20:53 +01:00
|
|
|
|
2009-08-23 11:22:41 +01:00
|
|
|
assert(sp->draw);
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2007-09-25 13:20:53 +01:00
|
|
|
|
2007-11-23 11:30:51 +00:00
|
|
|
|
2009-08-23 11:22:41 +01:00
|
|
|
cvbr->base.max_indices = SP_MAX_VBUF_INDEXES;
|
|
|
|
cvbr->base.max_vertex_buffer_bytes = SP_MAX_VBUF_SIZE;
|
2007-11-23 11:30:51 +00:00
|
|
|
|
2009-08-23 11:22:41 +01:00
|
|
|
cvbr->base.get_vertex_info = sp_vbuf_get_vertex_info;
|
|
|
|
cvbr->base.allocate_vertices = sp_vbuf_allocate_vertices;
|
|
|
|
cvbr->base.map_vertices = sp_vbuf_map_vertices;
|
|
|
|
cvbr->base.unmap_vertices = sp_vbuf_unmap_vertices;
|
|
|
|
cvbr->base.set_primitive = sp_vbuf_set_primitive;
|
|
|
|
cvbr->base.draw = sp_vbuf_draw;
|
|
|
|
cvbr->base.draw_arrays = sp_vbuf_draw_arrays;
|
|
|
|
cvbr->base.release_vertices = sp_vbuf_release_vertices;
|
|
|
|
cvbr->base.destroy = sp_vbuf_destroy;
|
2007-11-23 11:30:51 +00:00
|
|
|
|
2009-08-23 11:22:41 +01:00
|
|
|
cvbr->softpipe = sp;
|
2007-09-25 13:20:53 +01:00
|
|
|
|
2009-10-07 20:17:20 +01:00
|
|
|
cvbr->setup = sp_setup_create_context(cvbr->softpipe);
|
2008-03-13 22:53:44 +00:00
|
|
|
|
2009-08-23 11:22:41 +01:00
|
|
|
return &cvbr->base;
|
2007-09-25 13:20:53 +01:00
|
|
|
}
|