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         struct panfrost_bo *checksum_bo;
  50
  51         /* Has anything been written to this slice? */
  52         bool initialized;
  53 };
  54
  55 unsigned
  56 panfrost_compute_checksum_size(
  57         struct panfrost_slice *slice,
  58         unsigned width,
  59         unsigned height);
  60
  61 /* AFBC */
  62
  63 bool
  64 panfrost_format_supports_afbc(enum pipe_format format);
  65
  66 unsigned
  67 panfrost_afbc_header_size(unsigned width, unsigned height);
  68
  69 /* mali_texture_descriptor */
  70
  71 unsigned
  72 panfrost_estimate_texture_payload_size(
  73                 unsigned first_level, unsigned last_level,
  74                 unsigned first_layer, unsigned last_layer,
  75                 enum mali_texture_type type, enum mali_texture_layout layout);
  76
  77 void
  78 panfrost_new_texture(
  79         void *out,
  80         uint16_t width, uint16_t height,
  81         uint16_t depth, uint16_t array_size,
  82         enum pipe_format format,
  83         enum mali_texture_type type,
  84         enum mali_texture_layout layout,
  85         unsigned first_level, unsigned last_level,
  86         unsigned first_layer, unsigned last_layer,
  87         unsigned cube_stride,
  88         unsigned swizzle,
  89         mali_ptr base,
  90         struct panfrost_slice *slices);
  91
  92 void
  93 panfrost_new_texture_bifrost(
  94         struct bifrost_texture_descriptor *descriptor,
  95         uint16_t width, uint16_t height,
  96         uint16_t depth, uint16_t array_size,
  97         enum pipe_format format,
  98         enum mali_texture_type type,
  99         enum mali_texture_layout layout,
 100         unsigned first_level, unsigned last_level,
 101         unsigned first_layer, unsigned last_layer,
 102         unsigned cube_stride,
 103         unsigned swizzle,
 104         mali_ptr base,
 105         struct panfrost_slice *slices,
 106         struct panfrost_bo *payload);
 107
 108
 109 unsigned
 110 panfrost_get_layer_stride(struct panfrost_slice *slices, bool is_3d, unsigned cube_stride, unsigned level);
 111
 112 unsigned
 113 panfrost_texture_offset(struct panfrost_slice *slices, bool is_3d, unsigned cube_stride, unsigned level, unsigned face);
 114
 115 /* Formats */
 116
 117 struct panfrost_format {
 118         enum mali_format hw;
 119         unsigned bind;
 120 };
 121
 122 extern struct panfrost_format panfrost_pipe_format_table[PIPE_FORMAT_COUNT];
 123
 124 bool
 125 panfrost_is_z24s8_variant(enum pipe_format fmt);
 126
 127 unsigned
 128 panfrost_translate_swizzle_4(const unsigned char swizzle[4]);
 129
 130 void
 131 panfrost_invert_swizzle(const unsigned char *in, unsigned char *out);
 132
 133 static inline unsigned
 134 panfrost_get_default_swizzle(unsigned components)
 135 {
 136         switch (components) {
 137         case 1:
 138                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_ZERO << 3) |
 139                         (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9);
 140         case 2:
 141                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 142                         (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9);
 143         case 3:
 144                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 145                         (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ONE << 9);
 146         case 4:
 147                 return (MALI_CHANNEL_RED << 0) | (MALI_CHANNEL_GREEN << 3) |
 148                         (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ALPHA << 9);
 149         default:
 150                 unreachable("Invalid number of components");
 151         }
 152 }
 153
 154 static inline unsigned
 155 panfrost_bifrost_swizzle(unsigned components)
 156 {
 157         /* Set all components to 0 and force w if needed */
 158         return components < 4 ? 0x10 : 0x00;
 159 }
 160
 161 enum mali_format
 162 panfrost_format_to_bifrost_blend(const struct util_format_description *desc);
 163
 164 #endif