src/mesa/pipe/softpipe/sp_clear.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 /* Author:
  29  *    Brian Paul
  30  */
  31
  32
  33 #include "sp_clear.h"
  34 #include "sp_context.h"
  35 #include "sp_surface.h"
  36 #include "colormac.h"
  37
  38
  39 void
  40 softpipe_clear(struct pipe_context *pipe, GLboolean color, GLboolean depth,
  41                GLboolean stencil, GLboolean accum)
  42 {
  43    const struct softpipe_context *softpipe = softpipe_context(pipe);
  44    const GLint x = softpipe->scissor.minx;
  45    const GLint y = softpipe->scissor.miny;
  46    const GLint w = softpipe->scissor.maxx - x;
  47    const GLint h = softpipe->scissor.maxy - y;
  48
  49    if (color) {
  50       GLuint i;
  51       GLubyte clr[4];
  52
  53       UNCLAMPED_FLOAT_TO_UBYTE(clr[0], softpipe->clear_color.color[0]);
  54       UNCLAMPED_FLOAT_TO_UBYTE(clr[1], softpipe->clear_color.color[1]);
  55       UNCLAMPED_FLOAT_TO_UBYTE(clr[2], softpipe->clear_color.color[2]);
  56       UNCLAMPED_FLOAT_TO_UBYTE(clr[3], softpipe->clear_color.color[3]);
  57
  58       for (i = 0; i < softpipe->framebuffer.num_cbufs; i++) {
  59          struct pipe_surface *ps = softpipe->framebuffer.cbufs[i];
  60          struct softpipe_surface *sps = softpipe_surface(ps);
  61          GLint j;
  62          for (j = 0; j < h; j++) {
  63             sps->write_mono_row_ub(sps, w, x, y + j, clr);
  64          }
  65       }
  66    }
  67
  68    if (depth) {
  69    }
  70
  71 }