src/panfrost/util/pan_lower_framebuffer.h

   1 /*
   2  * Copyright (C) 2020 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  * Authors (Collabora):
  24  *      Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
  25  */
  26
  27 #ifndef __PAN_LOWER_FRAMEBUFFER_H
  28 #define __PAN_LOWER_FRAMEBUFFER_H
  29
  30 #include "compiler/nir/nir.h"
  31 #include "util/format/u_format.h"
  32
  33 /* NATIVE formats can use a typed load/store. PACK formats cannot but can use a
  34  * typed pack/unpack instruction. SOFTWARE formats are lowered */
  35
  36 enum pan_format_class {
  37         PAN_FORMAT_NATIVE,
  38         PAN_FORMAT_PACK,
  39         PAN_FORMAT_SOFTWARE
  40 };
  41
  42 nir_alu_type pan_unpacked_type_for_format(const struct util_format_description *desc);
  43 enum pan_format_class pan_format_class_load(const struct util_format_description *desc, unsigned quirks);
  44 enum pan_format_class pan_format_class_store(const struct util_format_description *desc, unsigned quirks);
  45
  46 bool pan_lower_framebuffer(nir_shader *shader, enum pipe_format *rt_fmts,
  47                            bool is_blend, unsigned quirks);
  48
  49 #endif