/*
 * Mesa 3-D graphics library
 *
 * Copyright 2012 Intel Corporation
 * Copyright 2013 Google
 *
 * 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 VMWARE AND/OR ITS SUPPLIERS 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.
 *
 * Authors:
 *    Chad Versace <chad.versace@linux.intel.com>
 *    Frank Henigman <fjhenigman@google.com>
 */

#ifndef INTEL_TILED_MEMCPY_H
#define INTEL_TILED_MEMCPY_H

#include <stdint.h>
#include "main/mtypes.h"

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

void
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,
                uint32_t tiling,
                mem_copy_fn mem_copy);

void
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,
                uint32_t tiling,
                mem_copy_fn mem_copy);

/* Tells intel_get_memcpy() whether the memcpy() is
 *
 *  - an upload to the GPU with an aligned destination and a potentially
 *    unaligned source; or
 *  - a download from the GPU with an aligned source and a potentially
 *    unaligned destination.
 */
enum intel_memcpy_direction {
   INTEL_UPLOAD,
   INTEL_DOWNLOAD
};

bool intel_get_memcpy(mesa_format tiledFormat, GLenum format,
                      GLenum type, mem_copy_fn *mem_copy, uint32_t *cpp,
                      enum intel_memcpy_direction direction);

#endif /* INTEL_TILED_MEMCPY */