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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 (at) 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