mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-27 07:58:14 +02:00
afdadec77f
This is a big code push. The patch is about 3000 lines.
Function isl_surf_init() calculates the physical layout of a surface.
The implementation is "complete" (but untested) for all 1D, 2D, 3D, and
cube surfaces for gen4 through gen9, except:
* gen9 1D surfaces
* gen9 Ys multisampled surfaces
* auxiliary surfaces (such as hiz, mcs, ccs)
74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/*
|
|
* Copyright 2015 Intel Corporation
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "isl_gen4.h"
|
|
#include "isl_priv.h"
|
|
|
|
bool
|
|
gen4_choose_msaa_layout(const struct isl_device *dev,
|
|
const struct isl_surf_init_info *info,
|
|
enum isl_tiling tiling,
|
|
enum isl_msaa_layout *msaa_layout)
|
|
{
|
|
/* Gen4 and Gen5 do not support MSAA */
|
|
assert(info->samples >= 1);
|
|
|
|
*msaa_layout = ISL_MSAA_LAYOUT_NONE;
|
|
return true;
|
|
}
|
|
|
|
void
|
|
gen4_choose_lod_alignment_el(const struct isl_device *dev,
|
|
const struct isl_surf_init_info *restrict info,
|
|
enum isl_tiling tiling,
|
|
enum isl_msaa_layout msaa_layout,
|
|
struct isl_extent3d *lod_align_el)
|
|
{
|
|
assert(info->samples == 1);
|
|
assert(msaa_layout == ISL_MSAA_LAYOUT_NONE);
|
|
assert(!isl_tiling_is_std_y(tiling));
|
|
|
|
/* Note that neither the surface's horizontal nor vertical image alignment
|
|
* is programmable on gen4 nor gen5.
|
|
*
|
|
* From the G35 PRM (2008-01), Volume 1 Graphics Core, Section 6.17.3.4
|
|
* Alignment Unit Size:
|
|
*
|
|
* Note that the compressed formats are padded to a full compression
|
|
* cell.
|
|
*
|
|
* +------------------------+--------+--------+
|
|
* | format | halign | valign |
|
|
* +------------------------+--------+--------+
|
|
* | YUV 4:2:2 formats | 4 | 2 |
|
|
* | uncompressed formats | 4 | 2 |
|
|
* +------------------------+--------+--------+
|
|
*/
|
|
|
|
if (isl_format_is_compressed(info->format)) {
|
|
*lod_align_el = isl_extent3d(1, 1, 1);
|
|
return;
|
|
}
|
|
|
|
*lod_align_el = isl_extent3d(4, 2, 1);
|
|
}
|