288 lines
10 KiB
C
288 lines
10 KiB
C
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/* -*- mode: c; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4; coding: utf-8 -*- */
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#ifndef __UI_SPECTRUM_H
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#define __UI_SPECTRUM_H
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/************************************************************************************
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** **
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** mcHF QRP Transceiver **
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** K Atanassov - M0NKA 2014 **
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** **
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**---------------------------------------------------------------------------------**
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** **
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** File name: **
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** Description: **
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** Last Modified: **
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** Licence: GNU GPLv3 **
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************************************************************************************/
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#include "uhsdr_board.h"
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#include "uhsdr_types.h"
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#include "audio_driver.h"
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#include "arm_const_structs.h"
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#include "ui_lcd_layouts.h"
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typedef struct
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{
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UiArea_t full;
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UiArea_t draw;
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UiArea_t title;
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UiArea_t scope;
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UiArea_t graticule;
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UiArea_t wfall;
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} SpectrumAreas_t;
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void UiSpectrum_Init(void);
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void UiSpectrum_Clear(void);
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void UiSpectrum_Redraw(void);
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void UiSpectrum_WaterfallClearData(void);
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void UiSpectrum_CalculateDisplayFilterBW(float32_t* width_pixel_, float32_t* left_filter_border_pos_);
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void UiSpectrum_DisplayFilterBW(void);
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void UiSpectrum_InitCwSnapDisplay (bool visible);
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void UiSpectrum_ResetSpectrum(void);
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uint16_t UiSprectrum_CheckNewGraticulePos(uint16_t new_y);
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// Settings for dB/division for spectrum display
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enum
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{
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DB_DIV_UNUSED = 0,
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DB_DIV_5,
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DB_DIV_7,
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DB_DIV_10,
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DB_DIV_15,
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DB_DIV_20,
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S_1_DIV,
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S_2_DIV,
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S_3_DIV,
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SCOPE_SCALE_NUM
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};
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#define DB_DIV_ADJUST_MIN DB_DIV_5
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#define DB_DIV_ADJUST_MAX S_3_DIV
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#define DB_DIV_ADJUST_DEFAULT DB_DIV_10
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// Enumeration to select which waterfall palette to use
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enum
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{
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WFALL_GRAY = 0,
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WFALL_HOT_COLD,
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WFALL_RAINBOW,
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WFALL_BLUE,
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WFALL_GRAY_INVERSE,
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WFALL_FLAME,
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WFALL_SUNSET,
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WFALL_MATRIX,
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WFALL_COLOR_NUM
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};
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//
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#define WATERFALL_COLOR_MIN 0
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#define WATERFALL_COLOR_MAX (WFALL_COLOR_NUM-1)
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#define WATERFALL_COLOR_DEFAULT WFALL_GRAY
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//
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#define WATERFALL_STEP_SIZE_MIN 1
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#define WATERFALL_STEP_SIZE_MAX 5
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#define WATERFALL_STEP_SIZE_DEFAULT 2
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//
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#define WATERFALL_OFFSET_MIN 60
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#define WATERFALL_OFFSET_MAX 140
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#define WATERFALL_OFFSET_DEFAULT 100
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//
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#define WATERFALL_CONTRAST_MIN 10
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#define WATERFALL_CONTRAST_MAX 225
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#define WATERFALL_CONTRAST_DEFAULT 120
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//
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#define WATERFALL_SPEED_MIN 0
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#define WATERFALL_SPEED_MAX 30
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#define WATERFALL_SPEED_DEFAULT 10
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//
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#define WATERFALL_NOSIG_ADJUST_MIN 10
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#define WATERFALL_NOSIG_ADJUST_MAX 30
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#define WATERFALL_NOSIG_ADJUST_DEFAULT 20
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//
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#define WATERFALL_SPEED_WARN 1//5
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#define WATERFALL_SPEED_WARN1 3//9
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//
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// Constants for waterfall size settings
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//
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enum
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{
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SPECTRUM_NORMAL=0,
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SPECTRUM_BIG
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};
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enum
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{
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FFT_WINDOW_RECTANGULAR=0,
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FFT_WINDOW_COSINE,
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FFT_WINDOW_BARTLETT,
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FFT_WINDOW_WELCH,
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FFT_WINDOW_HANN,
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FFT_WINDOW_HAMMING,
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FFT_WINDOW_BLACKMAN,
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FFT_WINDOW_NUTTALL,
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FFT_WINDOW_MAX
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};
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enum
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{
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Redraw_SCOPE=1,
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Redraw_WATERFALL=2
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};
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//#define FFT_WINDOW_DEFAULT FFT_WINDOW_BLACKMAN
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#define SPECTRUM_SIZE_DEFAULT SPECTRUM_NORMAL
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// Spectrum scope operational constants
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#define SPECTRUM_SCOPE_SPEED_MIN 0 // minimum spectrum scope speed
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#define SPECTRUM_SCOPE_SPEED_MAX 30 // maximum spectrum scope speed
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#define SPECTRUM_SCOPE_SPEED_DEFAULT 5
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//
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#define SPECTRUM_FILTER_MIN 1 // minimum filter setting
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#define SPECTRUM_FILTER_MAX 20 // maximum filter setting
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#define SPECTRUM_FILTER_DEFAULT 4 // default filter setting
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//
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#define SPECTRUM_SCOPE_AGC_MIN 1 // minimum spectrum scope AGC rate setting
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#define SPECTRUM_SCOPE_AGC_MAX 50 // maximum spectrum scope AGC rate setting
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#define SPECTRUM_SCOPE_AGC_DEFAULT 25 // default spectrum scope AGC rate setting
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//
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#define SPECTRUM_SCOPE_NOSIG_ADJUST_MIN 10
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#define SPECTRUM_SCOPE_NOSIG_ADJUST_MAX 30
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#define SPECTRUM_SCOPE_NOSIG_ADJUST_DEFAULT 20
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#define SPECTRUM_AGC_SCALING 25 // scaling factor by which the on-screen Spec. AGC Adj. is divided for adjustment.
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#define SCOPE_PREAMP_GAIN 1000//200 // amount of "amplification" in front of the FFT used for the Spectrum Scope and Waterfall used to overcome mathematical "noise floor"
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#define INIT_SPEC_AGC_LEVEL -80 // Initial offset for AGC level for spectrum/waterfall display
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#define NUMBER_WATERFALL_COLOURS 64 // number of colors in the waterfall table
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#ifdef USE_DISP_320_240
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#define WATERFALL_MAX_LINES WATERFALL_MAX_SIZE
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#endif
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#ifdef USE_DISP_480_320
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#ifdef STM32F7
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#define WATERFALL_MAX_LINES WATERFALL_HEIGHT
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#endif
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#ifdef STM32F4
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#define WATERFALL_MAX_LINES (WATERFALL_HEIGHT/2)
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#endif
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#endif
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// FIXME: This is a temporary hack
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// this needs to be as long at the longest scope width (in case of multiple resolutions)
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// list highest resolution first
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#ifdef USE_DISP_480_320
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#define SPECTRUM_WIDTH_MAX 480
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#elif defined(USE_DISP_320_240)
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#define SPECTRUM_WIDTH_MAX 480
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#endif
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// Spectrum display
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typedef struct SpectrumDisplay
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{
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// Samples buffer
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float32_t FFT_RingBuffer[FFT_IQ_BUFF_LEN];
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float32_t FFT_Samples[FFT_IQ_BUFF_LEN];
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float32_t FFT_MagData[SPEC_BUFF_LEN];
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float32_t FFT_AVGData[SPEC_BUFF_LEN]; // IIR low-pass filtered FFT buffer data
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uint32_t FFT_frequency; // center frequency of stored FFT
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// scope pixel data
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uint16_t Old_PosData[SPECTRUM_WIDTH_MAX];
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// Current data ptr
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uint32_t samp_ptr;
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volatile bool reading_ringbuffer;
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// if the user level code wants to read the ring buffer
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// simply set this, and the audio driver will stop writing
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// to the buffer. This means we loose some samples here but this is not a problem I would think.
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// if we don't want or should do this,
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// we have to add a little extra space to the ringbuffer (one audio driver sample block), which gives sufficient
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// space to add data to while we are reading.
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// Addresses of vertical grid lines on x axis
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ushort vert_grid_id[SPECTRUM_SCOPE_GRID_VERT_COUNT-1];
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uint16_t vert_grid; // distance between vert grid lines
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// Addresses of horizontal grid lines on x axis
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ushort horz_grid_id[16];
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uint8_t upper_horiz_gridline; // how many grid lines to use
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// State machine current state
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uchar state;
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// Init done flag
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uchar enabled;
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// Variables used in spectrum display AGC
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uint8_t magnify; // 2^magnify == zoom factor, max is 5
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uint16_t spec_len;
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uint16_t fft_iq_len;
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const arm_cfft_instance_f32 * cfft_instance;
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float display_offset; // "vertical" offset for spectral scope, gain adjust for waterfall
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float agc_rate; // this holds AGC rate for the Spectrum Display
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float db_scale; // scaling factor for dB/division
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ushort wfall_line_update; // used to set the number of lines per update on the waterfall
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float wfall_contrast; // used to adjust the contrast of the waterfall display
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uint16_t waterfall_colours[NUMBER_WATERFALL_COLOURS+1]; // palette of colors for waterfall data
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// uint8_t (*waterfall)[SPECTRUM_WIDTH]; //pointer to waterfall memory
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uint8_t repeatWaterfallLine; //line repeating count for waterfall size grater than number of data lines in waterfall array
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// uint8_t waterfall[WATERFALL_MAX_LINES*SPECTRUM_WIDTH]; // circular buffer used for storing waterfall data - remember to increase this if the waterfall is made larger!
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uint8_t waterfall[(WATERFALL_HEIGHT+10)*256]; // circular buffer used for storing waterfall data - remember to increase this if the waterfall is made larger!
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uint32_t waterfall_frequencies[(WATERFALL_HEIGHT+10)]; // we reserve hopefully enough frequency stores here. We store for each line in waterfall the center frequency of it.
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//uint8_t wfall_DrawDirection; //0=upward (water fountain), 1=downward (real waterfall)
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uint32_t wfall_line; // pointer to current line of waterfall data
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uint32_t wfall_size; // vertical size of the waterfall data (number of stored fft results)
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//uint16_t wfall_disp_lines; // vertical size of the waterfall on display
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uint32_t wfall_ystart;
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uint32_t scope_size;
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uint32_t scope_ystart;
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float32_t hz_per_pixel; // how many Hertz is one pixel in the spectrum
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float32_t rx_carrier_pos; // where is the current receiving frequency carrier (in pixels)
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float32_t marker_offset[SPECTRUM_MAX_MARKER]; // how is the current transmitting frequency carrier offset from rx carrier (in pixels)
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float32_t marker_pos[SPECTRUM_MAX_MARKER]; // where is the current transmitting frequency carrier (in pixels)
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uint16_t marker_line_pos_prev[SPECTRUM_MAX_MARKER]; // previous x-axis location of carrier line in screen coordinates, 0xffff indicates off screen
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uint16_t marker_num; // how many marker lines we have right now
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uint16_t marker_num_prev; // how many marker lines we had last time
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uint32_t scope_centre_grid_colour_active; // active colour of the spectrum scope center grid line
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uint32_t scope_grid_colour_active; // active color of spectrum scope grid;
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uint32_t boxes_colour; // screen boxes colour
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uint32_t txtline_colour; // ticker colour
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uint16_t old_left_filter_border_pos; //previous BW highlight left border
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uint16_t old_right_filter_border_pos; //previous BW highlight right border
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uint8_t RedrawType;
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SpectrumAreas_t* Slayout;
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} SpectrumDisplay;
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// Spectrum display
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extern SpectrumDisplay sd;
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//#define MinimumScopeSize 24
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#define MinimumScopeSize 46
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#define MinimumWaterfallSize 16
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#endif
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