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path: root/src/intel/isl/isl_priv.h
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/*
 * 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.
 */

#pragma once

#include <assert.h>
#include <strings.h>

#include "common/gen_device_info.h"
#include "util/macros.h"

#include "isl.h"

#define isl_finishme(format, ...) \
   __isl_finishme(__FILE__, __LINE__, format, ##__VA_ARGS__)

void PRINTFLIKE(3, 4) UNUSED
__isl_finishme(const char *file, int line, const char *fmt, ...);

#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))

static inline bool
isl_is_pow2(uintmax_t n)
{
   return !(n & (n - 1));
}

/**
 * Alignment must be a power of 2.
 */
static inline bool
isl_is_aligned(uintmax_t n, uintmax_t a)
{
   assert(isl_is_pow2(a));
   return (n & (a - 1)) == 0;
}

/**
 * Alignment must be a power of 2.
 */
static inline uintmax_t
isl_align(uintmax_t n, uintmax_t a)
{
   assert(a != 0 && isl_is_pow2(a));
   return (n + a - 1) & ~(a - 1);
}

static inline uintmax_t
isl_align_npot(uintmax_t n, uintmax_t a)
{
   assert(a > 0);
   return ((n + a - 1) / a) * a;
}

/**
 * Alignment must be a power of 2.
 */
static inline uintmax_t
isl_align_div(uintmax_t n, uintmax_t a)
{
   return isl_align(n, a) / a;
}

static inline uintmax_t
isl_align_div_npot(uintmax_t n, uintmax_t a)
{
   return isl_align_npot(n, a) / a;
}

/**
 * Log base 2, rounding towards zero.
 */
static inline uint32_t
isl_log2u(uint32_t n)
{
   assert(n != 0);
   return 31 - __builtin_clz(n);
}

static inline uint32_t
isl_round_up_to_power_of_two(uint32_t value)
{
   if (value <= 1)
      return value;

   return 1 << (32 - __builtin_clz(value - 1));
}

static inline uint32_t
isl_minify(uint32_t n, uint32_t levels)
{
   if (unlikely(n == 0))
      return 0;
   else
      return MAX(n >> levels, 1);
}

static inline struct isl_extent3d
isl_extent3d_sa_to_el(enum isl_format fmt, struct isl_extent3d extent_sa)
{
   const struct isl_format_layout *fmtl = isl_format_get_layout(fmt);

   assert(extent_sa.w % fmtl->bw == 0);
   assert(extent_sa.h % fmtl->bh == 0);
   assert(extent_sa.d % fmtl->bd == 0);

   return (struct isl_extent3d) {
      .w = extent_sa.w / fmtl->bw,
      .h = extent_sa.h / fmtl->bh,
      .d = extent_sa.d / fmtl->bd,
   };
}

static inline struct isl_extent3d
isl_extent3d_el_to_sa(enum isl_format fmt, struct isl_extent3d extent_el)
{
   const struct isl_format_layout *fmtl = isl_format_get_layout(fmt);

   return (struct isl_extent3d) {
      .w = extent_el.w * fmtl->bw,
      .h = extent_el.h * fmtl->bh,
      .d = extent_el.d * fmtl->bd,
   };
}

void
isl_gen4_surf_fill_state_s(const struct isl_device *dev, void *state,
                           const struct isl_surf_fill_state_info *restrict info);

void
isl_gen5_surf_fill_state_s(const struct isl_device *dev, void *state,
                           const struct isl_surf_fill_state_info *restrict info);

void
isl_gen6_surf_fill_state_s(const struct isl_device *dev, void *state,
                           const struct isl_surf_fill_state_info *restrict info);

void
isl_gen7_surf_fill_state_s(const struct isl_device *dev, void *state,
                           const struct isl_surf_fill_state_info *restrict info);

void
isl_gen75_surf_fill_state_s(const struct isl_device *dev, void *state,
                            const struct isl_surf_fill_state_info *restrict info);
void
isl_gen8_surf_fill_state_s(const struct isl_device *dev, void *state,
                           const struct isl_surf_fill_state_info *restrict info);
void
isl_gen9_surf_fill_state_s(const struct isl_device *dev, void *state,
                           const struct isl_surf_fill_state_info *restrict info);

void
isl_gen4_buffer_fill_state_s(void *state,
                             const struct isl_buffer_fill_state_info *restrict info);

void
isl_gen5_buffer_fill_state_s(void *state,
                             const struct isl_buffer_fill_state_info *restrict info);

void
isl_gen6_buffer_fill_state_s(void *state,
                             const struct isl_buffer_fill_state_info *restrict info);

void
isl_gen7_buffer_fill_state_s(void *state,
                             const struct isl_buffer_fill_state_info *restrict info);

void
isl_gen75_buffer_fill_state_s(void *state,
                              const struct isl_buffer_fill_state_info *restrict info);

void
isl_gen8_buffer_fill_state_s(void *state,
                             const struct isl_buffer_fill_state_info *restrict info);

void
isl_gen9_buffer_fill_state_s(void *state,
                             const struct isl_buffer_fill_state_info *restrict info);