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/*
* Copyright (C) 2018 Rob Clark <robclark@freedesktop.org>
* Copyright © 2018-2019 Google, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include <stdio.h>
#include "freedreno_layout.h"
/* indexed by cpp: */
static const struct {
unsigned pitchalign;
unsigned heightalign;
} tile_alignment[] = {
[1] = { 128, 32 },
[2] = { 128, 16 },
[3] = { 128, 16 },
[4] = { 64, 16 },
[8] = { 64, 16 },
[12] = { 64, 16 },
[16] = { 64, 16 },
};
void
fdl5_layout(struct fdl_layout *layout,
enum pipe_format format, uint32_t nr_samples,
uint32_t width0, uint32_t height0, uint32_t depth0,
uint32_t mip_levels, uint32_t array_size, bool is_3d)
{
const struct util_format_description *format_desc =
util_format_description(format);
assert(nr_samples > 0);
layout->width0 = width0;
layout->height0 = height0;
layout->depth0 = depth0;
layout->cpp = util_format_get_blocksize(format);
layout->cpp *= nr_samples;
layout->cpp_shift = ffs(layout->cpp) - 1;
layout->format = format;
layout->nr_samples = nr_samples;
layout->layer_first = !is_3d;
uint32_t pitchalign;
uint32_t heightalign;
uint32_t width = width0;
uint32_t height = height0;
uint32_t depth = depth0;
/* in layer_first layout, the level (slice) contains just one
* layer (since in fact the layer contains the slices)
*/
uint32_t layers_in_level = layout->layer_first ? 1 : array_size;
heightalign = tile_alignment[layout->cpp].heightalign;
for (uint32_t level = 0; level < mip_levels; level++) {
struct fdl_slice *slice = &layout->slices[level];
uint32_t tile_mode = fdl_tile_mode(layout, level);
uint32_t aligned_height = height;
uint32_t blocks;
if (tile_mode) {
pitchalign = tile_alignment[layout->cpp].pitchalign;
aligned_height = align(aligned_height, heightalign);
} else {
pitchalign = 64;
/* The blits used for mem<->gmem work at a granularity of
* 32x32, which can cause faults due to over-fetch on the
* last level. The simple solution is to over-allocate a
* bit the last level to ensure any over-fetch is harmless.
* The pitch is already sufficiently aligned, but height
* may not be:
*/
if (level == mip_levels - 1)
aligned_height = align(aligned_height, 32);
}
unsigned pitch_pixels;
if (format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC)
pitch_pixels =
util_align_npot(width, pitchalign * util_format_get_blockwidth(format));
else
pitch_pixels = align(width, pitchalign);
slice->offset = layout->size;
blocks = util_format_get_nblocks(format, pitch_pixels, aligned_height);
slice->pitch = util_format_get_nblocksx(format, pitch_pixels) *
layout->cpp;
const int alignment = is_3d ? 4096 : 1;
/* 1d array and 2d array textures must all have the same layer size
* for each miplevel on a3xx. 3d textures can have different layer
* sizes for high levels, but the hw auto-sizer is buggy (or at least
* different than what this code does), so as soon as the layer size
* range gets into range, we stop reducing it.
*/
if (is_3d && (
level == 1 ||
(level > 1 && layout->slices[level - 1].size0 > 0xf000)))
slice->size0 = align(blocks * layout->cpp, alignment);
else if (level == 0 || layout->layer_first || alignment == 1)
slice->size0 = align(blocks * layout->cpp, alignment);
else
slice->size0 = layout->slices[level - 1].size0;
layout->size += slice->size0 * depth * layers_in_level;
width = u_minify(width, 1);
height = u_minify(height, 1);
depth = u_minify(depth, 1);
}
}
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