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/**************************************************************************
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 *
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 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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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 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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 *
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 **************************************************************************/
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/* Authors:  Keith Whitwell 
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 */
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#include "sp_context.h"
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#include "sp_state.h"
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#include "util/u_memory.h"
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#include "util/u_helpers.h"
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#include "util/u_inlines.h"
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#include "util/u_transfer.h"
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#include "draw/draw_context.h"
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static void *
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softpipe_create_vertex_elements_state(struct pipe_context *pipe,
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                                      unsigned count,
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                                      const struct pipe_vertex_element *attribs)
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{
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   struct sp_velems_state *velems;
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   assert(count <= PIPE_MAX_ATTRIBS);
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   velems = (struct sp_velems_state *) MALLOC(sizeof(struct sp_velems_state));
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   if (velems) {
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      velems->count = count;
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      memcpy(velems->velem, attribs, sizeof(*attribs) * count);
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   }
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   return velems;
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}
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static void
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softpipe_bind_vertex_elements_state(struct pipe_context *pipe,
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                                    void *velems)
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{
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   struct softpipe_context *softpipe = softpipe_context(pipe);
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   struct sp_velems_state *sp_velems = (struct sp_velems_state *) velems;
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   softpipe->velems = sp_velems;
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   softpipe->dirty |= SP_NEW_VERTEX;
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   if (sp_velems)
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      draw_set_vertex_elements(softpipe->draw, sp_velems->count, sp_velems->velem);
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}
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static void
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softpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
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{
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   FREE( velems );
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}
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static void
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softpipe_set_vertex_buffers(struct pipe_context *pipe,
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                            unsigned start_slot, unsigned count,
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                            const struct pipe_vertex_buffer *buffers)
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{
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   struct softpipe_context *softpipe = softpipe_context(pipe);
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   assert(count <= PIPE_MAX_ATTRIBS);
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   util_set_vertex_buffers_count(softpipe->vertex_buffer,
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                                 &softpipe->num_vertex_buffers,
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                                 buffers, start_slot, count);
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   softpipe->dirty |= SP_NEW_VERTEX;
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   draw_set_vertex_buffers(softpipe->draw, start_slot, count, buffers);
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}
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static void
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softpipe_set_index_buffer(struct pipe_context *pipe,
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                          const struct pipe_index_buffer *ib)
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{
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   struct softpipe_context *softpipe = softpipe_context(pipe);
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   if (ib)
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      memcpy(&softpipe->index_buffer, ib, sizeof(softpipe->index_buffer));
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   else
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      memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
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}
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void
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softpipe_init_vertex_funcs(struct pipe_context *pipe)
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{
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   pipe->create_vertex_elements_state = softpipe_create_vertex_elements_state;
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   pipe->bind_vertex_elements_state = softpipe_bind_vertex_elements_state;
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   pipe->delete_vertex_elements_state = softpipe_delete_vertex_elements_state;
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   pipe->set_vertex_buffers = softpipe_set_vertex_buffers;
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   pipe->set_index_buffer = softpipe_set_index_buffer;
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}