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 #include "pan_bo.h"
  35
  36 struct panfrost_slice {
  37         unsigned offset;
  38         unsigned stride;
  39         unsigned size0;
  40
  41         /* If there is a header preceding each slice, how big is
  42          * that header? Used for AFBC */
  43         unsigned header_size;
  44
  45         /* If checksumming is enabled following the slice, what
  46          * is its offset/stride? */
  47         unsigned checksum_offset;
  48         unsigned checksum_stride;
  49
  50         /* Has anything been written to this slice? */
  51         bool initialized;
  52 };
  53
  54 unsigned
  55 panfrost_compute_checksum_size(
  56         struct panfrost_slice *slice,
  57         unsigned width,
  58         unsigned height);
  59
  60 /* AFBC */
  61
  62 bool
  63 panfrost_format_supports_afbc(enum pipe_format format);
  64
  65 unsigned
  66 panfrost_afbc_header_size(unsigned width, unsigned height);
  67
  68 /* mali_texture_descriptor */
  69
  70 unsigned
  71 panfrost_estimate_texture_payload_size(
  72                 unsigned first_level, unsigned last_level,
  73                 unsigned first_layer, unsigned last_layer,
  74                 enum mali_texture_type type, enum mali_texture_layout layout);
  75
  76 void
  77 panfrost_new_texture(
  78         void *out,
  79         uint16_t width, uint16_t height,
  80         uint16_t depth, uint16_t array_size,
  81         enum pipe_format format,
  82         enum mali_texture_type type,
  83         enum mali_texture_layout layout,
  84         unsigned first_level, unsigned last_level,
  85         unsigned first_layer, unsigned last_layer,
  86         unsigned cube_stride,
  87         unsigned swizzle,
  88         mali_ptr base,
  89         struct panfrost_slice *slices);
  90
  91 void
  92 panfrost_new_texture_bifrost(
  93         struct bifrost_texture_descriptor *descriptor,
  94         uint16_t width, uint16_t height,
  95         uint16_t depth, uint16_t array_size,
  96         enum pipe_format format,
  97         enum mali_texture_type type,
  98         enum mali_texture_layout layout,
  99         unsigned first_level, unsigned last_level,
 100         unsigned first_layer, unsigned last_layer,
 101         unsigned cube_stride,
 102         unsigned swizzle,
 103         mali_ptr base,
 104         struct panfrost_slice *slices,
 105         struct panfrost_bo *payload);
 106
 107
 108 unsigned
 109 panfrost_get_layer_stride(struct panfrost_slice *slices, bool is_3d, unsigned cube_stride, unsigned level);
 110
 111 unsigned
 112 panfrost_texture_offset(struct panfrost_slice *slices, bool is_3d, unsigned cube_stride, unsigned level, unsigned face);
 113
 114 /* Formats */
 115
 116 enum mali_format
 117 panfrost_find_format(const struct util_format_description *desc);
 118
 119 bool
 120 panfrost_is_z24s8_variant(enum pipe_format fmt);
 121
 122 unsigned
 123 panfrost_translate_swizzle_4(const unsigned char swizzle[4]);
 124
 125 void
 126 panfrost_invert_swizzle(const unsigned char *in, unsigned char *out);
 127
 128 static inline unsigned
 129 panfrost_get_default_swizzle(unsigned components)
 130 {
 131         switch (components) {
 132         case 1:
 133                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_ZERO << 3) |
 134                         (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9);
 135         case 2:
 136                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 137                         (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9);
 138         case 3:
 139                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 140                         (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ONE << 9);
 141         case 4:
 142                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 143                         (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ALPHA << 9);
 144         default:
 145                 unreachable("Invalid number of components");
 146         }
 147 }
 148
 149 enum mali_format
 150 panfrost_format_to_bifrost_blend(const struct util_format_description *desc);
 151
 152 #endif