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      1 /**************************************************************************
      2  *
      3  * Copyright 2007 VMware, Inc.
      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 VMWARE 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 Dnzer
     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 }
     64