src/gallium/drivers/cell/ppu/cell_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 /**
  29  * Authors
  30  *  Brian Paul
  31  */
  32
  33 #include <stdio.h>
  34 #include <assert.h>
  35 #include <stdint.h>
  36 #include "pipe/p_inlines.h"
  37 #include "util/u_memory.h"
  38 #include "cell/common.h"
  39 #include "cell_clear.h"
  40 #include "cell_context.h"
  41 #include "cell_batch.h"
  42 #include "cell_flush.h"
  43 #include "cell_spu.h"
  44 #include "cell_state.h"
  45
  46
  47 void
  48 cell_clear_surface(struct pipe_context *pipe, struct pipe_surface *ps,
  49                    unsigned clearValue)
  50 {
  51    struct pipe_screen *screen = pipe->screen;
  52    struct cell_context *cell = cell_context(pipe);
  53    uint surfIndex;
  54
  55    if (cell->dirty)
  56       cell_update_derived(cell);
  57
  58
  59    if (!cell->cbuf_map[0])
  60       cell->cbuf_map[0] = screen->surface_map(screen, ps,
  61                                               PIPE_BUFFER_USAGE_GPU_WRITE);
  62
  63    if (ps == cell->framebuffer.zsbuf) {
  64       surfIndex = 1;
  65    }
  66    else {
  67       surfIndex = 0;
  68    }
  69
  70
  71    {
  72       struct cell_command_clear_surface *clr
  73          = (struct cell_command_clear_surface *)
  74          cell_batch_alloc(cell, sizeof(*clr));
  75       clr->opcode = CELL_CMD_CLEAR_SURFACE;
  76       clr->surface = surfIndex;
  77       clr->value = clearValue;
  78    }
  79 }