src/intel/isl/isl_priv.h - third_party/mesa - Git at Google

 /*
  * 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.
  */

 #ifndef ISL_PRIV_H
 #define ISL_PRIV_H

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

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

 #include "isl.h"

 #define isl_finishme(format, ...) \
    do { \
       static bool reported = false; \
       if (!reported) { \
          __isl_finishme(__FILE__, __LINE__, format, ##__VA_ARGS__); \
          reported = true; \
       } \
    } while (0)

 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))

 typedef void *(*isl_mem_copy_fn)(void *dest, const void *src, size_t n);

 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;
 }

 static inline uintmax_t
 isl_assert_div(uintmax_t n, uintmax_t a)
 {
    assert(n % a == 0);
    return n / 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_memcpy_linear_to_tiled(uint32_t xt1, uint32_t xt2,
                             uint32_t yt1, uint32_t yt2,
                             char *dst, const char *src,
                             uint32_t dst_pitch, int32_t src_pitch,
                             bool has_swizzling,
                             enum isl_tiling tiling,
                             isl_memcpy_type copy_type);

 void
 _isl_memcpy_tiled_to_linear(uint32_t xt1, uint32_t xt2,
                             uint32_t yt1, uint32_t yt2,
                             char *dst, const char *src,
                             int32_t dst_pitch, uint32_t src_pitch,
                             bool has_swizzling,
                             enum isl_tiling tiling,
                             isl_memcpy_type copy_type);

 void
 _isl_memcpy_linear_to_tiled_sse41(uint32_t xt1, uint32_t xt2,
                                   uint32_t yt1, uint32_t yt2,
                                   char *dst, const char *src,
                                   uint32_t dst_pitch, int32_t src_pitch,
                                   bool has_swizzling,
                                   enum isl_tiling tiling,
                                   isl_memcpy_type copy_type);

 void
 _isl_memcpy_tiled_to_linear_sse41(uint32_t xt1, uint32_t xt2,
                                   uint32_t yt1, uint32_t yt2,
                                   char *dst, const char *src,
                                   int32_t dst_pitch, uint32_t src_pitch,
                                   bool has_swizzling,
                                   enum isl_tiling tiling,
                                   isl_memcpy_type copy_type);

 /* This is useful for adding the isl_prefix to genX functions */
 #define __PASTE2(x, y) x ## y
 #define __PASTE(x, y) __PASTE2(x, y)
 #define isl_genX(x) __PASTE(isl_, genX(x))

 #ifdef genX
 #  include "isl_genX_priv.h"
 #else
 #  define genX(x) gen4_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen5_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen6_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen7_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen75_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen8_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen9_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen10_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen11_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #  define genX(x) gen12_##x
 #  include "isl_genX_priv.h"
 #  undef genX
 #endif

 #endif /* ISL_PRIV_H */
	/*
	* 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.
	*/

	#ifndef ISL_PRIV_H
	#define ISL_PRIV_H

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

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

	#include "isl.h"

	#define isl_finishme(format, ...) \
	do { \
	static bool reported = false; \
	if (!reported) { \
	__isl_finishme(__FILE__, __LINE__, format, ##__VA_ARGS__); \
	reported = true; \
	} \
	} while (0)

	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))

	typedef void (isl_mem_copy_fn)(void dest, const void src, size_t n);

	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;
	}

	static inline uintmax_t
	isl_assert_div(uintmax_t n, uintmax_t a)
	{
	assert(n % a == 0);
	return n / 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_memcpy_linear_to_tiled(uint32_t xt1, uint32_t xt2,
	uint32_t yt1, uint32_t yt2,
	char dst, const char src,
	uint32_t dst_pitch, int32_t src_pitch,
	bool has_swizzling,
	enum isl_tiling tiling,
	isl_memcpy_type copy_type);

	void
	_isl_memcpy_tiled_to_linear(uint32_t xt1, uint32_t xt2,
	uint32_t yt1, uint32_t yt2,
	char dst, const char src,
	int32_t dst_pitch, uint32_t src_pitch,
	bool has_swizzling,
	enum isl_tiling tiling,
	isl_memcpy_type copy_type);

	void
	_isl_memcpy_linear_to_tiled_sse41(uint32_t xt1, uint32_t xt2,
	uint32_t yt1, uint32_t yt2,
	char dst, const char src,
	uint32_t dst_pitch, int32_t src_pitch,
	bool has_swizzling,
	enum isl_tiling tiling,
	isl_memcpy_type copy_type);

	void
	_isl_memcpy_tiled_to_linear_sse41(uint32_t xt1, uint32_t xt2,
	uint32_t yt1, uint32_t yt2,
	char dst, const char src,
	int32_t dst_pitch, uint32_t src_pitch,
	bool has_swizzling,
	enum isl_tiling tiling,
	isl_memcpy_type copy_type);

	/* This is useful for adding the isl_prefix to genX functions */
	#define __PASTE2(x, y) x ## y
	#define __PASTE(x, y) __PASTE2(x, y)
	#define isl_genX(x) __PASTE(isl_, genX(x))

	#ifdef genX
	# include "isl_genX_priv.h"
	#else
	# define genX(x) gen4_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen5_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen6_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen7_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen75_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen8_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen9_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen10_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen11_##x
	# include "isl_genX_priv.h"
	# undef genX
	# define genX(x) gen12_##x
	# include "isl_genX_priv.h"
	# undef genX
	#endif

	#endif /* ISL_PRIV_H */