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/*
* Copyright © 2014 Broadcom
*
* 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 VC4_TILING_H
#define VC4_TILING_H
#include <stdbool.h>
#include <stdint.h>
#include "util/macros.h"
/** Return the width in pixels of a 64-byte microtile. */
static inline uint32_t
vc4_utile_width(int cpp)
{
switch (cpp) {
case 1:
case 2:
return 8;
case 4:
return 4;
case 8:
return 2;
default:
unreachable("unknown cpp");
}
}
/** Return the height in pixels of a 64-byte microtile. */
static inline uint32_t
vc4_utile_height(int cpp)
{
switch (cpp) {
case 1:
return 8;
case 2:
case 4:
case 8:
return 4;
default:
unreachable("unknown cpp");
}
}
bool vc4_size_is_lt(uint32_t width, uint32_t height, int cpp) ATTRIBUTE_CONST;
void vc4_load_lt_image_base(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
int cpp, const struct pipe_box *box);
void vc4_store_lt_image_base(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
int cpp, const struct pipe_box *box);
void vc4_load_lt_image_neon(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
int cpp, const struct pipe_box *box);
void vc4_store_lt_image_neon(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
int cpp, const struct pipe_box *box);
void vc4_load_tiled_image(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
uint8_t tiling_format, int cpp,
const struct pipe_box *box);
void vc4_store_tiled_image(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
uint8_t tiling_format, int cpp,
const struct pipe_box *box);
/* If we're building for ARMv7 (Pi 2+), assume it has NEON. For Raspbian we
* should extend this to have some runtime detection of being built for ARMv6
* on a Pi 2+.
*/
#if defined(__ARM_ARCH) && __ARM_ARCH >= 7
#define NEON_SUFFIX(x) x ## _neon
#else
#define NEON_SUFFIX(x) x ## _base
#endif
static inline void
vc4_load_lt_image(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
int cpp, const struct pipe_box *box)
{
NEON_SUFFIX(vc4_load_lt_image)(dst, dst_stride, src, src_stride,
cpp, box);
}
static inline void
vc4_store_lt_image(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
int cpp, const struct pipe_box *box)
{
NEON_SUFFIX(vc4_store_lt_image)(dst, dst_stride, src, src_stride,
cpp, box);
}
#undef NEON_SUFFIX
#endif /* VC4_TILING_H */
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