private.h

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/*
 * private.h
 *
 * Private fosphor definitions
 *
 * Copyright (C) 2013-2021 Sylvain Munaut
 * SPDX-License-Identifier: GPL-3.0-or-later
 */

#pragma once

/*! \defgroup private
 *  @{
 */

/*! \file private.h
 *  \brief Private fosphor definitions
 */


#define FOSPHOR_FFT_LEN_LOG     10
#define FOSPHOR_FFT_LEN         (1<<FOSPHOR_FFT_LEN_LOG)

#define FOSPHOR_FFT_MULT_BATCH  16
#define FOSPHOR_FFT_MAX_BATCH   1024

struct fosphor_cl_state;
struct fosphor_gl_state;

struct fosphor
{
        struct fosphor_cl_state *cl;
        struct fosphor_gl_state *gl;

#define FLG_FOSPHOR_USE_CLGL_SHARING    0
        int flags;

        float fft_win[FOSPHOR_FFT_LEN];

        float *img_waterfall;
        float *img_histogram;
        float *buf_spectrum;

        struct {
                int db_ref;
                int db_per_div;
                float scale;
                float offset;
        } power;

        struct {
                double center;
                double span;
        } frequency;
};


/*! @} */