src/gallium/drivers/freedreno/a2xx/fd2_resource.c

   1 /*
   2  * Copyright (C) 2018 Jonathan Marek <jonathan@marek.ca>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Jonathan Marek <jonathan@marek.ca>
  25  */
  26
  27 #include "fd2_resource.h"
  28
  29 uint32_t
  30 fd2_setup_slices(struct fd_resource *rsc)
  31 {
  32         struct pipe_resource *prsc = &rsc->base;
  33         enum pipe_format format = rsc->base.format;
  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 fdl_slice *slice = fd_resource_slice(rsc, level);
  41                 uint32_t blocks;
  42
  43                 /* 32 * 32 block alignment */
  44                 switch (prsc->target) {
  45                 default: assert(0);
  46                 case PIPE_TEXTURE_2D:
  47                 case PIPE_TEXTURE_2D_ARRAY:
  48                 case PIPE_TEXTURE_RECT:
  49                 case PIPE_TEXTURE_CUBE:
  50                         height = align(height, 32 * util_format_get_blockheight(format));
  51                 case PIPE_TEXTURE_1D:
  52                 case PIPE_TEXTURE_1D_ARRAY:
  53                         width = align(width, 32 * util_format_get_blockwidth(format));
  54                 case PIPE_BUFFER:
  55                         break;
  56                 }
  57
  58                 /* mipmaps have power of two sizes in memory */
  59                 if (level) {
  60                         width = util_next_power_of_two(width);
  61                         height = util_next_power_of_two(height);
  62                 }
  63
  64                 slice->pitch = util_format_get_nblocksx(format, width) * rsc->layout.cpp;
  65                 slice->offset = size;
  66
  67                 blocks = util_format_get_nblocks(format, width, height);
  68
  69                 /* 4k aligned size */
  70                 slice->size0 = align(blocks * rsc->layout.cpp, 4096);
  71
  72                 size += slice->size0 * depth * prsc->array_size;
  73
  74                 width = u_minify(width, 1);
  75                 height = u_minify(height, 1);
  76                 depth = u_minify(depth, 1);
  77         }
  78         return size;
  79 }
  80
  81 unsigned
  82 fd2_tile_mode(const struct pipe_resource *tmpl)
  83 {
  84         /* disable tiling for cube maps, freedreno uses a 2D array for the staging texture,
  85         * (a2xx supports 2D arrays but it is not implemented)
  86         */
  87         if (tmpl->target == PIPE_TEXTURE_CUBE)
  88                 return 0;
  89         /* we can enable tiling for any resource we can render to */
  90         return (tmpl->bind & PIPE_BIND_RENDER_TARGET) ? 1 : 0;
  91 }