locallaplaciancl.h

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/*
    This file is part of darktable,
    Copyright (C) 2016 johannes hanika.
    Copyright (C) 2019 Aurélien PIERRE.
    Copyright (C) 2020 Pascal Obry.
    Copyright (C) 2021 Chris Elston.
    Copyright (C) 2022 Martin Bařinka.
    
    darktable is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    
    darktable is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DT_PIXEL_LOCALLAPLACIANCL_H
#define DT_PIXEL_LOCALLAPLACIANCL_H
#ifdef HAVE_OPENCL
typedef struct dt_local_laplacian_cl_global_t
{
  int kernel_pad_input;
  int kernel_gauss_expand;
  int kernel_gauss_reduce;
  int kernel_laplacian_assemble;
  int kernel_process_curve;
  int kernel_write_back;
}
dt_local_laplacian_cl_global_t;
 
typedef struct dt_local_laplacian_cl_t
{
  int devid;
  dt_local_laplacian_cl_global_t *global;
 
  int width, height;
  int num_levels;
  float sigma, highlights, shadows, clarity;
  int blocksize, blockwd, blockht;
  int max_supp;
  size_t bwidth, bheight;
 
  // pyramid of padded monochrome input buffer
  cl_mem *dev_padded;
  // pyramid of padded output buffer, monochrome, too:
  cl_mem *dev_output;
  // one pyramid of padded monochrome buffers for every value
  // of gamma (curve parameter) that we process:
  cl_mem **dev_processed;
}
dt_local_laplacian_cl_t;
 
void dt_local_laplacian_init_cl_global(void);
void dt_local_laplacian_free_cl_global(void);
dt_local_laplacian_cl_t *dt_local_laplacian_init_cl(
    const int devid,
    const int width,            // width of input image
    const int height,           // height of input image
    const float sigma,          // user param: separate shadows/mid-tones/highlights
    const float shadows,        // user param: lift shadows
    const float highlights,     // user param: compress highlights
    const float clarity);       // user param: increase clarity/local contrast
void dt_local_laplacian_free_cl(dt_local_laplacian_cl_t *g);
cl_int dt_local_laplacian_cl(dt_local_laplacian_cl_t *g, cl_mem input, cl_mem output);
#endif
 
#endif // DT_PIXEL_LOCALLAPLACIANCL_H
 
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