/*
  Copyright (c) 2013, Intel Corporation
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

    * Neither the name of Intel Corporation nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.


   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
*/

#include "ispc_texcomp.h"
#include "kernel_ispc.h"
#include <memory.h> // ESENTHEL

void GetProfile_ultrafast(bc7_enc_settings* settings)
{
    settings->channels = 3;

	// mode02
	settings->mode_selection[0] = false;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode13
	settings->mode_selection[1] = false;
	settings->fastSkipTreshold_mode1 = 3;
	settings->fastSkipTreshold_mode3 = 1;
    settings->fastSkipTreshold_mode7 = 0;

	settings->refineIterations[1] = 2;
	settings->refineIterations[3] = 1;

	// mode45
	settings->mode_selection[2] = false;

    settings->mode45_channel0 = 0;
	settings->refineIterations_channel = 0;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 1;
}

void GetProfile_veryfast(bc7_enc_settings* settings)
{
    settings->channels = 3;

	// mode02
	settings->mode_selection[0] = false;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode13
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 3;
	settings->fastSkipTreshold_mode3 = 1;
    settings->fastSkipTreshold_mode7 = 0;

	settings->refineIterations[1] = 2;
	settings->refineIterations[3] = 1;

	// mode45
	settings->mode_selection[2] = false;

    settings->mode45_channel0 = 0;
	settings->refineIterations_channel = 0;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 1;
}

void GetProfile_fast(bc7_enc_settings* settings)
{	
    settings->channels = 3;

	// mode02
	settings->mode_selection[0] = false;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode13
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 12;
	settings->fastSkipTreshold_mode3 = 4;
    settings->fastSkipTreshold_mode7 = 0;

	settings->refineIterations[1] = 2;
	settings->refineIterations[3] = 1;

	// mode45
	settings->mode_selection[2] = false;

    settings->mode45_channel0 = 0;
	settings->refineIterations_channel = 0;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2;
}

void GetProfile_basic(bc7_enc_settings* settings)
{	
    settings->channels = 3;

	// mode02
	settings->mode_selection[0] = true;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode13
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 8+4;
	settings->fastSkipTreshold_mode3 = 8;
    settings->fastSkipTreshold_mode7 = 0;

	settings->refineIterations[1] = 2;
	settings->refineIterations[3] = 2;

	// mode45
	settings->mode_selection[2] = true;

    settings->mode45_channel0 = 0;
	settings->refineIterations_channel = 2;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2;
}

void GetProfile_slow(bc7_enc_settings* settings)
{	
    settings->channels = 3;

	int moreRefine = 2;
	// mode02
	settings->mode_selection[0] = true;
	settings->skip_mode2 = false;

	settings->refineIterations[0] = 2+moreRefine;
	settings->refineIterations[2] = 2+moreRefine;

	// mode13
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 64;
	settings->fastSkipTreshold_mode3 = 64;
	settings->fastSkipTreshold_mode7 = 0;

	settings->refineIterations[1] = 2+moreRefine;
	settings->refineIterations[3] = 2+moreRefine;

	// mode45
	settings->mode_selection[2] = true;

    settings->mode45_channel0 = 0;
	settings->refineIterations_channel = 2+moreRefine;
	settings->refineIterations[4] = 2+moreRefine;
	settings->refineIterations[5] = 2+moreRefine;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2+moreRefine;
}

void GetProfile_alpha_ultrafast(bc7_enc_settings* settings)
{	
    settings->channels = 4;

    // mode02
	settings->mode_selection[0] = false;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode137
	settings->mode_selection[1] = false;
	settings->fastSkipTreshold_mode1 = 0;
	settings->fastSkipTreshold_mode3 = 0;
    settings->fastSkipTreshold_mode7 = 4;

	settings->refineIterations[1] = 1;
	settings->refineIterations[3] = 1;
    settings->refineIterations[7] = 2;

	// mode45
	settings->mode_selection[2] = true;
    
    settings->mode45_channel0 = 3;
    settings->refineIterations_channel = 1;
	settings->refineIterations[4] = 1;
	settings->refineIterations[5] = 1;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2;
}

void GetProfile_alpha_veryfast(bc7_enc_settings* settings)
{	
    settings->channels = 4;

    // mode02
	settings->mode_selection[0] = false;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode137
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 0;
	settings->fastSkipTreshold_mode3 = 0;
    settings->fastSkipTreshold_mode7 = 4;

	settings->refineIterations[1] = 1;
	settings->refineIterations[3] = 1;
    settings->refineIterations[7] = 2;

	// mode45
	settings->mode_selection[2] = true;
    
    settings->mode45_channel0 = 3;
    settings->refineIterations_channel = 2;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2;
}

void GetProfile_alpha_fast(bc7_enc_settings* settings)
{	
    settings->channels = 4;

    // mode02
	settings->mode_selection[0] = false;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode137
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 4;
	settings->fastSkipTreshold_mode3 = 4;
    settings->fastSkipTreshold_mode7 = 8;

	settings->refineIterations[1] = 1;
	settings->refineIterations[3] = 1;
    settings->refineIterations[7] = 2;

	// mode45
	settings->mode_selection[2] = true;
    
    settings->mode45_channel0 = 3;
    settings->refineIterations_channel = 2;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2;
}

void GetProfile_alpha_basic(bc7_enc_settings* settings)
{	
    settings->channels = 4;

    // mode02
	settings->mode_selection[0] = true;
	settings->skip_mode2 = true;

	settings->refineIterations[0] = 2;
	settings->refineIterations[2] = 2;

	// mode137
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 8+4;
	settings->fastSkipTreshold_mode3 = 8;
    settings->fastSkipTreshold_mode7 = 8;

	settings->refineIterations[1] = 2;
	settings->refineIterations[3] = 2;
    settings->refineIterations[7] = 2;

	// mode45
	settings->mode_selection[2] = true;
    
    settings->mode45_channel0 = 0;
    settings->refineIterations_channel = 2;
	settings->refineIterations[4] = 2;
	settings->refineIterations[5] = 2;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2;
}

void GetProfile_alpha_slow(bc7_enc_settings* settings)
{	
    settings->channels = 4;

	int moreRefine = 2;
	// mode02
	settings->mode_selection[0] = true;
	settings->skip_mode2 = false;

	settings->refineIterations[0] = 2+moreRefine;
	settings->refineIterations[2] = 2+moreRefine;

	// mode137
	settings->mode_selection[1] = true;
	settings->fastSkipTreshold_mode1 = 64;
	settings->fastSkipTreshold_mode3 = 64;
    settings->fastSkipTreshold_mode7 = 64;

	settings->refineIterations[1] = 2+moreRefine;
	settings->refineIterations[3] = 2+moreRefine;
	settings->refineIterations[7] = 2+moreRefine;

	// mode45
	settings->mode_selection[2] = true;

    settings->mode45_channel0 = 0;
	settings->refineIterations_channel = 2+moreRefine;
	settings->refineIterations[4] = 2+moreRefine;
	settings->refineIterations[5] = 2+moreRefine;

	// mode6
	settings->mode_selection[3] = true;

	settings->refineIterations[6] = 2+moreRefine;
}

void GetProfile_bc6h_veryfast(bc6h_enc_settings* settings)
{
    settings->slow_mode = false;
    settings->fast_mode = true;
    settings->fastSkipTreshold = 0;
    settings->refineIterations_1p = 0;
    settings->refineIterations_2p = 0;
}

void GetProfile_bc6h_fast(bc6h_enc_settings* settings)
{
    settings->slow_mode = false;
    settings->fast_mode = true;
    settings->fastSkipTreshold = 2;
    settings->refineIterations_1p = 0;
    settings->refineIterations_2p = 1;
}

void GetProfile_bc6h_basic(bc6h_enc_settings* settings)
{
    settings->slow_mode = false;
    settings->fast_mode = false;
    settings->fastSkipTreshold = 4;
    settings->refineIterations_1p = 2;
    settings->refineIterations_2p = 2;
}

void GetProfile_bc6h_slow(bc6h_enc_settings* settings)
{
    settings->slow_mode = true;
    settings->fast_mode = false;
    settings->fastSkipTreshold = 10;
    settings->refineIterations_1p = 2;
    settings->refineIterations_2p = 2;
}

void GetProfile_bc6h_veryslow(bc6h_enc_settings* settings)
{
    settings->slow_mode = true;
    settings->fast_mode = false;
    settings->fastSkipTreshold = 32;
    settings->refineIterations_1p = 2;
    settings->refineIterations_2p = 2;
}

void GetProfile_etc_slow(etc_enc_settings* settings)
{
    settings->fastSkipTreshold = 6;
}

void ReplicateBorders(rgba_surface* dst_slice, const rgba_surface* src_tex, int start_x, int start_y, int bpp)
{
    int bytes_per_pixel = bpp >> 3;
    
    bool aliasing = false;
    if (&src_tex->ptr[src_tex->stride * start_y + bytes_per_pixel * start_x] == dst_slice->ptr) aliasing = true;

    for (int y = 0; y < dst_slice->height; y++)
    for (int x = 0; x < dst_slice->width; x++)
    {
        int xx = start_x + x;
        int yy = start_y + y;

        if (aliasing && xx < src_tex->width && yy < src_tex->height) continue;

        if (xx >= src_tex->width) xx = src_tex->width - 1;
        if (yy >= src_tex->height) yy = src_tex->height - 1;

        void* dst = &dst_slice->ptr[dst_slice->stride * y + bytes_per_pixel * x];
        void* src = &src_tex->ptr[src_tex->stride * yy + bytes_per_pixel * xx];

        memcpy(dst, src, bytes_per_pixel);
    }
}

void CompressBlocksBC1(const rgba_surface* src, uint8_t* dst)
{
	ispc::CompressBlocksBC1_ispc((ispc::rgba_surface*)src, dst);
}

void CompressBlocksBC3(const rgba_surface* src, uint8_t* dst)
{
	ispc::CompressBlocksBC3_ispc((ispc::rgba_surface*)src, dst);
}

void CompressBlocksBC7(const rgba_surface* src, uint8_t* dst, bc7_enc_settings* settings)
{
	ispc::CompressBlocksBC7_ispc((ispc::rgba_surface*)src, dst, (ispc::bc7_enc_settings*)settings);
}

void CompressBlocksBC6H(const rgba_surface* src, uint8_t* dst, bc6h_enc_settings* settings)
{
    ispc::CompressBlocksBC6H_ispc((ispc::rgba_surface*)src, dst, (ispc::bc6h_enc_settings*)settings);
}

void CompressBlocksETC1(const rgba_surface* src, uint8_t* dst, etc_enc_settings* settings)
{
    ispc::CompressBlocksETC1_ispc((ispc::rgba_surface*)src, dst, (ispc::etc_enc_settings*)settings);
}