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         uint32_t level, size = 0;
  33         uint32_t width0 = prsc->width0;
  34
  35         if (rsc->layout.tile_mode && prsc->target != PIPE_TEXTURE_CUBE)
  36                 width0 = util_next_power_of_two(width0);
  37
  38         /* 32 pixel alignment */
  39         fdl_set_pitchalign(&rsc->layout, fdl_cpp_shift(&rsc->layout) + 5);
  40
  41         for (level = 0; level <= prsc->last_level; level++) {
  42                 struct fdl_slice *slice = fd_resource_slice(rsc, level);
  43                 uint32_t pitch = fdl_pitch(&rsc->layout, level);
  44                 uint32_t height = u_minify(prsc->height0, level);
  45                 if (rsc->layout.tile_mode) {
  46                         height = align(height, 4);
  47                         if (prsc->target != PIPE_TEXTURE_CUBE)
  48                                 height = util_next_power_of_two(height);
  49                 }
  50
  51                 uint32_t nblocksy = util_format_get_nblocksy(format, height);
  52
  53                 slice->offset = size;
  54                 /* 1d array and 2d array textures must all have the same layer size
  55                  * for each miplevel on a3xx. 3d textures can have different layer
  56                  * sizes for high levels, but the hw auto-sizer is buggy (or at least
  57                  * different than what this code does), so as soon as the layer size
  58                  * range gets into range, we stop reducing it.
  59                  */
  60                 if (prsc->target == PIPE_TEXTURE_3D && (
  61                                         level == 1 ||
  62                                         (level > 1 && fd_resource_slice(rsc, level - 1)->size0 > 0xf000)))
  63                         slice->size0 = align(nblocksy * pitch, alignment);
  64                 else if (level == 0 || alignment == 1)
  65                         slice->size0 = align(nblocksy * pitch, alignment);
  66                 else
  67                         slice->size0 = fd_resource_slice(rsc, level - 1)->size0;
  68
  69                 size += slice->size0 * u_minify(prsc->depth0, level) * prsc->array_size;
  70         }
  71
  72         return size;
  73 }
  74
  75 uint32_t
  76 fd3_setup_slices(struct fd_resource *rsc)
  77 {
  78         uint32_t alignment;
  79
  80         switch (rsc->base.target) {
  81         case PIPE_TEXTURE_3D:
  82         case PIPE_TEXTURE_1D_ARRAY:
  83         case PIPE_TEXTURE_2D_ARRAY:
  84                 alignment = 4096;
  85                 break;
  86         default:
  87                 alignment = 1;
  88                 break;
  89         }
  90
  91         return setup_slices(rsc, alignment, rsc->base.format);
  92 }
  93
  94 static bool
  95 ok_format(enum pipe_format pfmt)
  96 {
  97         enum a3xx_color_fmt fmt = fd3_pipe2color(pfmt);
  98
  99         if (fmt == RB_NONE)
 100                 return false;
 101
 102         switch (pfmt) {
 103         case PIPE_FORMAT_R8_UINT:
 104         case PIPE_FORMAT_R8_SINT:
 105         case PIPE_FORMAT_Z32_FLOAT:
 106                 return false;
 107         default:
 108                 break;
 109         }
 110
 111         return true;
 112 }
 113
 114 unsigned
 115 fd3_tile_mode(const struct pipe_resource *tmpl)
 116 {
 117         if (ok_format(tmpl->format))
 118                 return TILE_4X4;
 119         return LINEAR;
 120 }