src/gallium/drivers/ilo/ilo_blitter.c

   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 }