mirror of https://gitlab.freedesktop.org/mesa/mesa
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2022 Collabora, Ltd.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __PAN_EARLYZS_H__
|
|
#define __PAN_EARLYZS_H__
|
|
|
|
#include <stdbool.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Matches hardware Pixel Kill enum on Bifrost and Valhall */
|
|
enum pan_earlyzs {
|
|
PAN_EARLYZS_FORCE_EARLY = 0,
|
|
PAN_EARLYZS_WEAK_EARLY = 2,
|
|
PAN_EARLYZS_FORCE_LATE = 3
|
|
};
|
|
|
|
/* Early-ZS pair. */
|
|
struct pan_earlyzs_state {
|
|
/* Z/S test and update */
|
|
enum pan_earlyzs update : 2;
|
|
|
|
/* Pixel kill */
|
|
enum pan_earlyzs kill : 2;
|
|
|
|
/* So it fits in a byte */
|
|
unsigned padding : 4;
|
|
};
|
|
|
|
/* Internal lookup table. Users should treat as an opaque structure and only
|
|
* access through pan_earlyzs_get and pan_earlyzs_analyze. See pan_earlyzs_get
|
|
* for definition of the arrays.
|
|
*/
|
|
struct pan_earlyzs_lut {
|
|
struct pan_earlyzs_state states[2][2][2];
|
|
};
|
|
|
|
/*
|
|
* Look up early-ZS state. This is in the draw hot path on Valhall, so this is
|
|
* defined inline in the header.
|
|
*/
|
|
static inline struct pan_earlyzs_state
|
|
pan_earlyzs_get(struct pan_earlyzs_lut lut, bool writes_zs_or_oq,
|
|
bool alpha_to_coverage, bool zs_always_passes)
|
|
{
|
|
return lut.states[writes_zs_or_oq][alpha_to_coverage][zs_always_passes];
|
|
}
|
|
|
|
struct pan_shader_info;
|
|
|
|
struct pan_earlyzs_lut pan_earlyzs_analyze(const struct pan_shader_info *s);
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern C */
|
|
#endif
|
|
|
|
#endif
|