workbench/libs/mesa/src/gallium/drivers/softpipe/sp_state_clip.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
  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_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 }