Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. /**************************************************************************
  2.  *
  3.  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
  4.  * All Rights Reserved.
  5.  * Copyright 2009 VMware, Inc.  All Rights Reserved.
  6.  *
  7.  * Permission is hereby granted, free of charge, to any person obtaining a
  8.  * copy of this software and associated documentation files (the
  9.  * "Software"), to deal in the Software without restriction, including
  10.  * without limitation the rights to use, copy, modify, merge, publish,
  11.  * distribute, sub license, and/or sell copies of the Software, and to
  12.  * permit persons to whom the Software is furnished to do so, subject to
  13.  * the following conditions:
  14.  *
  15.  * The above copyright notice and this permission notice (including the
  16.  * next paragraph) shall be included in all copies or substantial portions
  17.  * of the Software.
  18.  *
  19.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22.  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26.  *
  27.  **************************************************************************/
  28.  
  29. /* Author:
  30.  *    Brian Paul
  31.  *    Michel Dänzer
  32.  */
  33.  
  34.  
  35. #include "pipe/p_defines.h"
  36. #include "util/u_pack_color.h"
  37. #include "util/u_surface.h"
  38. #include "sp_clear.h"
  39. #include "sp_context.h"
  40. #include "sp_query.h"
  41. #include "sp_tile_cache.h"
  42.  
  43.  
  44. /**
  45.  * Clear the given buffers to the specified values.
  46.  * No masking, no scissor (clear entire buffer).
  47.  */
  48. void
  49. softpipe_clear(struct pipe_context *pipe, unsigned buffers,
  50.                const union pipe_color_union *color,
  51.                double depth, unsigned stencil)
  52. {
  53.    struct softpipe_context *softpipe = softpipe_context(pipe);
  54.    struct pipe_surface *zsbuf = softpipe->framebuffer.zsbuf;
  55.    unsigned zs_buffers = buffers & PIPE_CLEAR_DEPTHSTENCIL;
  56.    uint64_t cv;
  57.    uint i;
  58.  
  59.    if (softpipe->no_rast)
  60.       return;
  61.  
  62.    if (!softpipe_check_render_cond(softpipe))
  63.       return;
  64.  
  65. #if 0
  66.    softpipe_update_derived(softpipe, PIPE_PRIM_TRIANGLES); /* not needed?? */
  67. #endif
  68.  
  69.    if (buffers & PIPE_CLEAR_COLOR) {
  70.       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
  71.          sp_tile_cache_clear(softpipe->cbuf_cache[i], color, 0);
  72.       }
  73.    }
  74.  
  75.    if (zs_buffers &&
  76.        util_format_is_depth_and_stencil(zsbuf->texture->format) &&
  77.        zs_buffers != PIPE_CLEAR_DEPTHSTENCIL) {
  78.       /* Clearing only depth or stencil in a combined depth-stencil buffer. */
  79.       util_clear_depth_stencil(pipe, zsbuf, zs_buffers, depth, stencil,
  80.                                0, 0, zsbuf->width, zsbuf->height);
  81.    }
  82.    else if (zs_buffers) {
  83.       static const union pipe_color_union zero;
  84.  
  85.       cv = util_pack64_z_stencil(zsbuf->format, depth, stencil);
  86.       sp_tile_cache_clear(softpipe->zsbuf_cache, &zero, cv);
  87.    }
  88.  
  89.    softpipe->dirty_render_cache = TRUE;
  90. }
  91.