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Viewing changes to src/gallium/drivers/llvmpipe/lp_state_vertex.c

  • Committer: mmach
  • Date: 2022-09-22 19:56:13 UTC
  • Revision ID: netbit73@gmail.com-20220922195613-wtik9mmy20tmor0i
2022-09-22 21:17:09

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src/gallium/drivers/llvmpipe/lp_state_vertex.c
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/**************************************************************************
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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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/* Authors:  Keith Whitwell <keithw@vmware.com>
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 */
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#include "lp_context.h"
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#include "lp_state.h"
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#include "draw/draw_context.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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static void *
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llvmpipe_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 lp_velems_state *velems;
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   assert(count <= PIPE_MAX_ATTRIBS);
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   velems = (struct lp_velems_state *) MALLOC(sizeof(struct lp_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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llvmpipe_bind_vertex_elements_state(struct pipe_context *pipe,
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                                    void *velems)
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{
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   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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   struct lp_velems_state *lp_velems = (struct lp_velems_state *) velems;
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   llvmpipe->velems = lp_velems;
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   llvmpipe->dirty |= LP_NEW_VERTEX;
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   if (velems)
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      draw_set_vertex_elements(llvmpipe->draw, lp_velems->count, lp_velems->velem);
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}
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static void
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llvmpipe_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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llvmpipe_set_vertex_buffers(struct pipe_context *pipe,
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                            unsigned start_slot, unsigned count,
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                            unsigned unbind_num_trailing_slots,
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                            bool take_ownership,
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                            const struct pipe_vertex_buffer *buffers)
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{
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   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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   assert(count <= PIPE_MAX_ATTRIBS);
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   util_set_vertex_buffers_count(llvmpipe->vertex_buffer,
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                                 &llvmpipe->num_vertex_buffers,
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                                 buffers, start_slot, count,
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                                 unbind_num_trailing_slots,
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                                 take_ownership);
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   llvmpipe->dirty |= LP_NEW_VERTEX;
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   draw_set_vertex_buffers(llvmpipe->draw, start_slot, count,
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                           unbind_num_trailing_slots, buffers);
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}
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void
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llvmpipe_init_vertex_funcs(struct llvmpipe_context *llvmpipe)
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{
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   llvmpipe->pipe.create_vertex_elements_state = llvmpipe_create_vertex_elements_state;
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   llvmpipe->pipe.bind_vertex_elements_state = llvmpipe_bind_vertex_elements_state;
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   llvmpipe->pipe.delete_vertex_elements_state = llvmpipe_delete_vertex_elements_state;
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   llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
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}