src/gallium/drivers/llvmpipe/lp_clear.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   4  * All Rights Reserved.
   5  * Copyright 2009 VMware, Inc.  All Rights Reserved.
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   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 VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  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 "lp_clear.h"
  37 #include "lp_context.h"
  38 #include "lp_setup.h"
  39 #include "lp_query.h"
  40 #include "lp_debug.h"
  41
  42
  43 /**
  44  * Clear the given buffers to the specified values.
  45  * No masking, no scissor (clear entire buffer).
  46  */
  47 void
  48 llvmpipe_clear(struct pipe_context *pipe,
  49                unsigned buffers,
  50                const union pipe_color_union *color,
  51                double depth,
  52                unsigned stencil)
  53 {
  54    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  55
  56    if (!llvmpipe_check_render_cond(llvmpipe))
  57       return;
  58
  59    if (LP_PERF & PERF_NO_DEPTH)
  60       buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
  61
  62    lp_setup_clear( llvmpipe->setup, color, depth, stencil, buffers );
  63 }