src/panfrost/lib/pan_sampler.c

   1 /*
   2  * Copyright (C) 2019 Collabora, Ltd.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  */
  24
  25 #include "pan_encoder.h"
  26
  27 /* Sampler comparison functions are flipped in OpenGL from the hardware, so we
  28  * need to be able to flip accordingly */
  29
  30 enum mali_func
  31 panfrost_flip_compare_func(enum mali_func f)
  32 {
  33         switch (f) {
  34         case MALI_FUNC_LESS:
  35                 return MALI_FUNC_GREATER;
  36         case MALI_FUNC_GREATER:
  37                 return MALI_FUNC_LESS;
  38         case MALI_FUNC_LEQUAL:
  39                 return MALI_FUNC_GEQUAL;
  40         case MALI_FUNC_GEQUAL:
  41                 return MALI_FUNC_LEQUAL;
  42         default:
  43                 return f;
  44         }
  45 }