workbench/libs/mesa/src/gallium/drivers/softpipe/sp_state_rasterizer.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "pipe/p_defines.h"
  29 #include "util/u_memory.h"
  30 #include "sp_context.h"
  31 #include "sp_state.h"
  32 #include "draw/draw_context.h"
  33
  34
  35
  36 static void *
  37 softpipe_create_rasterizer_state(struct pipe_context *pipe,
  38                                  const struct pipe_rasterizer_state *rast)
  39 {
  40    return mem_dup(rast, sizeof(*rast));
  41 }
  42
  43
  44 static void
  45 softpipe_bind_rasterizer_state(struct pipe_context *pipe,
  46                                void *rasterizer)
  47 {
  48    struct softpipe_context *softpipe = softpipe_context(pipe);
  49
  50    if (softpipe->rasterizer == rasterizer)
  51       return;
  52
  53    /* pass-through to draw module */
  54    draw_set_rasterizer_state(softpipe->draw, rasterizer, rasterizer);
  55
  56    softpipe->rasterizer = rasterizer;
  57
  58    softpipe->dirty |= SP_NEW_RASTERIZER;
  59 }
  60
  61
  62 static void
  63 softpipe_delete_rasterizer_state(struct pipe_context *pipe,
  64                                  void *rasterizer)
  65 {
  66    FREE( rasterizer );
  67 }
  68
  69
  70 void
  71 softpipe_init_rasterizer_funcs(struct pipe_context *pipe)
  72 {
  73    pipe->create_rasterizer_state = softpipe_create_rasterizer_state;
  74    pipe->bind_rasterizer_state   = softpipe_bind_rasterizer_state;
  75    pipe->delete_rasterizer_state = softpipe_delete_rasterizer_state;
  76 }