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  1. /*
  2.  * Mesa 3-D graphics library
  3.  *
  4.  * Copyright (C) 2013 LunarG, Inc.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the "Software"),
  8.  * to deal in the Software without restriction, including without limitation
  9.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10.  * and/or sell copies of the Software, and to permit persons to whom the
  11.  * Software is furnished to do so, subject to the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice shall be included
  14.  * in all copies or substantial portions of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21.  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22.  * DEALINGS IN THE SOFTWARE.
  23.  *
  24.  * Authors:
  25.  *    Chia-I Wu <olv@lunarg.com>
  26.  */
  27.  
  28. #include "util/u_blitter.h"
  29.  
  30. #include "ilo_context.h"
  31. #include "ilo_blitter.h"
  32.  
  33. static bool
  34. ilo_blitter_pipe_create(struct ilo_blitter *blitter)
  35. {
  36.    if (blitter->pipe_blitter)
  37.       return true;
  38.  
  39.    blitter->pipe_blitter = util_blitter_create(&blitter->ilo->base);
  40.  
  41.    return (blitter->pipe_blitter != NULL);
  42. }
  43.  
  44. /**
  45.  * Create a blitter.  Because the use of util_blitter, this must be called
  46.  * after the context is initialized.
  47.  */
  48. struct ilo_blitter *
  49. ilo_blitter_create(struct ilo_context *ilo)
  50. {
  51.    struct ilo_blitter *blitter;
  52.  
  53.    blitter = CALLOC_STRUCT(ilo_blitter);
  54.    if (!blitter)
  55.       return NULL;
  56.  
  57.    blitter->ilo = ilo;
  58.  
  59.    if (!ilo_blitter_pipe_create(blitter)) {
  60.       FREE(blitter);
  61.       return NULL;
  62.    }
  63.  
  64.    return blitter;
  65. }
  66.  
  67. void
  68. ilo_blitter_destroy(struct ilo_blitter *blitter)
  69. {
  70.    if (blitter->pipe_blitter)
  71.       util_blitter_destroy(blitter->pipe_blitter);
  72.  
  73.    FREE(blitter);
  74. }
  75.