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  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
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29.  */
  30. #include "sp_context.h"
  31. #include "sp_state.h"
  32. #include "draw/draw_context.h"
  33.  
  34.  
  35. static void
  36. softpipe_set_clip_state(struct pipe_context *pipe,
  37.                         const struct pipe_clip_state *clip)
  38. {
  39.    struct softpipe_context *softpipe = softpipe_context(pipe);
  40.  
  41.    /* pass the clip state to the draw module */
  42.    draw_set_clip_state(softpipe->draw, clip);
  43. }
  44.  
  45.  
  46. static void
  47. softpipe_set_viewport_states(struct pipe_context *pipe,
  48.                              unsigned start_slot,
  49.                              unsigned num_viewports,
  50.                              const struct pipe_viewport_state *viewport)
  51. {
  52.    struct softpipe_context *softpipe = softpipe_context(pipe);
  53.  
  54.    /* pass the viewport info to the draw module */
  55.    draw_set_viewport_states(softpipe->draw, start_slot, num_viewports,
  56.                             viewport);
  57.  
  58.    softpipe->viewport = *viewport; /* struct copy */
  59.    softpipe->dirty |= SP_NEW_VIEWPORT;
  60. }
  61.  
  62.  
  63. static void
  64. softpipe_set_scissor_states(struct pipe_context *pipe,
  65.                             unsigned start_slot,
  66.                             unsigned num_scissors,
  67.                             const struct pipe_scissor_state *scissor)
  68. {
  69.    struct softpipe_context *softpipe = softpipe_context(pipe);
  70.  
  71.    draw_flush(softpipe->draw);
  72.  
  73.    softpipe->scissor = *scissor; /* struct copy */
  74.    softpipe->dirty |= SP_NEW_SCISSOR;
  75. }
  76.  
  77.  
  78. static void
  79. softpipe_set_polygon_stipple(struct pipe_context *pipe,
  80.                              const struct pipe_poly_stipple *stipple)
  81. {
  82.    struct softpipe_context *softpipe = softpipe_context(pipe);
  83.  
  84.    draw_flush(softpipe->draw);
  85.  
  86.    softpipe->poly_stipple = *stipple; /* struct copy */
  87.    softpipe->dirty |= SP_NEW_STIPPLE;
  88. }
  89.  
  90.  
  91. void
  92. softpipe_init_clip_funcs(struct pipe_context *pipe)
  93. {
  94.    pipe->set_clip_state = softpipe_set_clip_state;
  95.    pipe->set_viewport_states = softpipe_set_viewport_states;
  96.    pipe->set_scissor_states = softpipe_set_scissor_states;
  97.    pipe->set_polygon_stipple = softpipe_set_polygon_stipple;
  98. }
  99.