src/gallium/drivers/freedreno/a3xx/fd3_resource.c

   1 /*
   2  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   3  * Copyright (C) 2019 Khaled Emara <ekhaled1836@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 #include "fd3_resource.h"
  26 #include "fd3_format.h"
  27
  28 static uint32_t
  29 setup_slices(struct fd_resource *rsc, uint32_t alignment, enum pipe_format format)
  30 {
  31         struct pipe_resource *prsc = &rsc->base;
  32         struct fd_screen *screen = fd_screen(prsc->screen);
  33         uint32_t pitchalign = screen->gmem_alignw;
  34         uint32_t level, size = 0;
  35         uint32_t width = prsc->width0;
  36         uint32_t height = prsc->height0;
  37         uint32_t depth = prsc->depth0;
  38
  39         for (level = 0; level <= prsc->last_level; level++) {
  40                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
  41                 uint32_t blocks;
  42
  43                 if (rsc->tile_mode) {
  44                         if (prsc->target != PIPE_TEXTURE_CUBE) {
  45                                 if (level == 0) {
  46                                         width = util_next_power_of_two(width);
  47                                         height = util_next_power_of_two(height);
  48                                 }
  49                                 width = MAX2(width, 8);
  50                                 height = MAX2(height, 4);
  51                                 // Multiplying by 4 is the result of the 4x4 tiling pattern.
  52                                 slice->pitch = width * 4;
  53                                 blocks = util_format_get_nblocks(format, width, height);
  54                         } else {
  55                                 uint32_t twidth, theight;
  56                                 twidth = align(width, 8);
  57                                 theight = align(height, 4);
  58                                 // Multiplying by 4 is the result of the 4x4 tiling pattern.
  59                                 slice->pitch = twidth * 4;
  60                                 blocks = util_format_get_nblocks(format, twidth, theight);
  61                         }
  62                 } else {
  63                         slice->pitch = width = align(width, pitchalign);
  64                         blocks = util_format_get_nblocks(format, slice->pitch, height);
  65                 }
  66
  67                 slice->offset = size;
  68                 /* 1d array and 2d array textures must all have the same layer size
  69                  * for each miplevel on a3xx. 3d textures can have different layer
  70                  * sizes for high levels, but the hw auto-sizer is buggy (or at least
  71                  * different than what this code does), so as soon as the layer size
  72                  * range gets into range, we stop reducing it.
  73                  */
  74                 if (prsc->target == PIPE_TEXTURE_3D && (
  75                                         level == 1 ||
  76                                         (level > 1 && fd_resource_slice(rsc, level - 1)->size0 > 0xf000)))
  77                         slice->size0 = align(blocks * rsc->cpp, alignment);
  78                 else if (level == 0 || alignment == 1)
  79                         slice->size0 = align(blocks * rsc->cpp, alignment);
  80                 else
  81                         slice->size0 = fd_resource_slice(rsc, level - 1)->size0;
  82
  83                 size += slice->size0 * depth * prsc->array_size;
  84
  85                 width = u_minify(width, 1);
  86                 height = u_minify(height, 1);
  87                 depth = u_minify(depth, 1);
  88         }
  89
  90         return size;
  91 }
  92
  93 uint32_t
  94 fd3_setup_slices(struct fd_resource *rsc)
  95 {
  96         uint32_t alignment;
  97
  98         switch (rsc->base.target) {
  99         case PIPE_TEXTURE_3D:
 100         case PIPE_TEXTURE_1D_ARRAY:
 101         case PIPE_TEXTURE_2D_ARRAY:
 102                 alignment = 4096;
 103                 break;
 104         default:
 105                 alignment = 1;
 106                 break;
 107         }
 108
 109         return setup_slices(rsc, alignment, rsc->base.format);
 110 }
 111
 112 static bool
 113 ok_format(enum pipe_format pfmt)
 114 {
 115         enum a3xx_color_fmt fmt = fd3_pipe2color(pfmt);
 116
 117         if (fmt == ~0)
 118                 return false;
 119
 120         switch (pfmt) {
 121         case PIPE_FORMAT_R8_UINT:
 122         case PIPE_FORMAT_R8_SINT:
 123         case PIPE_FORMAT_Z32_FLOAT:
 124                 return false;
 125         default:
 126                 break;
 127         }
 128
 129         return true;
 130 }
 131
 132 unsigned
 133 fd3_tile_mode(const struct pipe_resource *tmpl)
 134 {
 135         if (ok_format(tmpl->format))
 136                 return TILE_4X4;
 137         return LINEAR;
 138 }