src/gallium/drivers/llvmpipe/lp_state_rasterizer.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  26  **************************************************************************/
  27
  28 #include "pipe/p_defines.h"
  29 #include "util/u_memory.h"
  30 #include "lp_context.h"
  31 #include "lp_state.h"
  32 #include "lp_setup.h"
  33 #include "draw/draw_context.h"
  34
  35
  36
  37 void *
  38 llvmpipe_create_rasterizer_state(struct pipe_context *pipe,
  39                                  const struct pipe_rasterizer_state *rast)
  40 {
  41    return mem_dup(rast, sizeof(*rast));
  42 }
  43
  44 void llvmpipe_bind_rasterizer_state(struct pipe_context *pipe,
  45                                     void *setup)
  46 {
  47    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  48
  49    /* pass-through to draw module */
  50    draw_set_rasterizer_state(llvmpipe->draw, setup);
  51
  52    llvmpipe->rasterizer = (struct pipe_rasterizer_state *)setup;
  53
  54    /* Note: we can immediately set the triangle state here and
  55     * not worry about binning because we handle culling during
  56     * triangle setup, not when rasterizing the bins.
  57     */
  58    if (llvmpipe->rasterizer) {
  59       lp_setup_set_triangle_state( llvmpipe->setup,
  60                    llvmpipe->rasterizer->cull_mode,
  61                    llvmpipe->rasterizer->front_winding == PIPE_WINDING_CCW );
  62    }
  63
  64    llvmpipe->dirty |= LP_NEW_RASTERIZER;
  65 }
  66
  67 void llvmpipe_delete_rasterizer_state(struct pipe_context *pipe,
  68                                       void *rasterizer)
  69 {
  70    FREE( rasterizer );
  71 }
  72
  73