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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 (at) 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_state(struct pipe_context *pipe,
     48                             const struct pipe_viewport_state *viewport)
     49 {
     50    struct softpipe_context *softpipe = softpipe_context(pipe);
     51 
     52    /* pass the viewport info to the draw module */
     53    draw_set_viewport_state(softpipe->draw, viewport);
     54 
     55    softpipe->viewport = *viewport; /* struct copy */
     56    softpipe->dirty |= SP_NEW_VIEWPORT;
     57 }
     58 
     59 
     60 static void
     61 softpipe_set_scissor_state(struct pipe_context *pipe,
     62                            const struct pipe_scissor_state *scissor)
     63 {
     64    struct softpipe_context *softpipe = softpipe_context(pipe);
     65 
     66    draw_flush(softpipe->draw);
     67 
     68    softpipe->scissor = *scissor; /* struct copy */
     69    softpipe->dirty |= SP_NEW_SCISSOR;
     70 }
     71 
     72 
     73 static void
     74 softpipe_set_polygon_stipple(struct pipe_context *pipe,
     75                              const struct pipe_poly_stipple *stipple)
     76 {
     77    struct softpipe_context *softpipe = softpipe_context(pipe);
     78 
     79    draw_flush(softpipe->draw);
     80 
     81    softpipe->poly_stipple = *stipple; /* struct copy */
     82    softpipe->dirty |= SP_NEW_STIPPLE;
     83 }
     84 
     85 
     86 void
     87 softpipe_init_clip_funcs(struct pipe_context *pipe)
     88 {
     89    pipe->set_clip_state = softpipe_set_clip_state;
     90    pipe->set_viewport_state = softpipe_set_viewport_state;
     91    pipe->set_scissor_state = softpipe_set_scissor_state;
     92    pipe->set_polygon_stipple = softpipe_set_polygon_stipple;
     93 }
     94