src/panfrost/encoder/pan_texture.h

   1 /*
   2  * Copyright (C) 2008 VMware, Inc.
   3  * Copyright (C) 2014 Broadcom
   4  * Copyright (C) 2018-2019 Alyssa Rosenzweig
   5  * Copyright (C) 2019-2020 Collabora, Ltd.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24  * SOFTWARE.
  25  *
  26  */
  27
  28 #ifndef __PAN_TEXTURE_H
  29 #define __PAN_TEXTURE_H
  30
  31 #include <stdbool.h>
  32 #include "util/format/u_format.h"
  33 #include "panfrost-job.h"
  34
  35 struct panfrost_slice {
  36         unsigned offset;
  37         unsigned stride;
  38         unsigned size0;
  39
  40         /* If there is a header preceding each slice, how big is
  41          * that header? Used for AFBC */
  42         unsigned header_size;
  43
  44         /* If checksumming is enabled following the slice, what
  45          * is its offset/stride? */
  46         unsigned checksum_offset;
  47         unsigned checksum_stride;
  48
  49         /* Has anything been written to this slice? */
  50         bool initialized;
  51 };
  52
  53 unsigned
  54 panfrost_compute_checksum_size(
  55         struct panfrost_slice *slice,
  56         unsigned width,
  57         unsigned height);
  58
  59 /* AFBC */
  60
  61 bool
  62 panfrost_format_supports_afbc(enum pipe_format format);
  63
  64 unsigned
  65 panfrost_afbc_header_size(unsigned width, unsigned height);
  66
  67 /* mali_texture_descriptor */
  68
  69 unsigned
  70 panfrost_estimate_texture_size(
  71                 unsigned first_level, unsigned last_level,
  72                 unsigned first_layer, unsigned last_layer,
  73                 enum mali_texture_type type, enum mali_texture_layout layout);
  74
  75 void
  76 panfrost_new_texture(
  77         void *out,
  78         uint16_t width, uint16_t height,
  79         uint16_t depth, uint16_t array_size,
  80         enum pipe_format format,
  81         enum mali_texture_type type,
  82         enum mali_texture_layout layout,
  83         unsigned first_level, unsigned last_level,
  84         unsigned first_layer, unsigned last_layer,
  85         unsigned cube_stride,
  86         unsigned swizzle,
  87         mali_ptr base,
  88         struct panfrost_slice *slices);
  89
  90
  91 unsigned
  92 panfrost_get_layer_stride(struct panfrost_slice *slices, bool is_3d, unsigned cube_stride, unsigned level);
  93
  94 unsigned
  95 panfrost_texture_offset(struct panfrost_slice *slices, bool is_3d, unsigned cube_stride, unsigned level, unsigned face);
  96
  97 /* Formats */
  98
  99 enum mali_format
 100 panfrost_find_format(const struct util_format_description *desc);
 101
 102 bool
 103 panfrost_is_z24s8_variant(enum pipe_format fmt);
 104
 105 unsigned
 106 panfrost_translate_swizzle_4(const unsigned char swizzle[4]);
 107
 108 void
 109 panfrost_invert_swizzle(const unsigned char *in, unsigned char *out);
 110
 111 static inline unsigned
 112 panfrost_get_default_swizzle(unsigned components)
 113 {
 114         switch (components) {
 115         case 1:
 116                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_ZERO << 3) |
 117                         (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9);
 118         case 2:
 119                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 120                         (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9);
 121         case 3:
 122                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 123                         (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ONE << 9);
 124         case 4:
 125                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 126                         (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ALPHA << 9);
 127         default:
 128                 unreachable("Invalid number of components");
 129         }
 130 }
 131
 132 #endif