workbench/libs/mesa/src/gallium/auxiliary/util/u_clear.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
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  10  * permit persons to whom the Software is furnished to do so, subject to
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  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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  25  **************************************************************************/
  26
  27 /* Authors:
  28  *    Michel Dänzer
  29  */
  30
  31
  32 #include "pipe/p_context.h"
  33 #include "pipe/p_state.h"
  34
  35
  36 /**
  37  * Clear the given buffers to the specified values.
  38  * No masking, no scissor (clear entire buffer).
  39  */
  40 static INLINE void
  41 util_clear(struct pipe_context *pipe,
  42            struct pipe_framebuffer_state *framebuffer, unsigned buffers,
  43            const float *rgba, double depth, unsigned stencil)
  44 {
  45    if (buffers & PIPE_CLEAR_COLOR) {
  46       unsigned i;
  47       for (i = 0; i < framebuffer->nr_cbufs; i++) {
  48          struct pipe_surface *ps = framebuffer->cbufs[i];
  49          pipe->clear_render_target(pipe, ps, rgba, 0, 0, ps->width, ps->height);
  50       }
  51    }
  52
  53    if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
  54       struct pipe_surface *ps = framebuffer->zsbuf;
  55       pipe->clear_depth_stencil(pipe, ps, buffers & PIPE_CLEAR_DEPTHSTENCIL,
  56                                 depth, stencil,
  57                                 0, 0, ps->width, ps->height);
  58    }
  59 }