revised version of F746_SD_GraphicEqualizer
Dependencies: BSP_DISCO_F746NG F746_GUI F746_SAI_IO FrequencyResponseDrawer LCD_DISCO_F746NG SDFileSystem_Warning_Fixed TS_DISCO_F746NG mbed
Fork of F746_SD_GraphicEqualizer by
MyClasses_Functions/DesignerDrawer.cpp@2:2a5c93bf729a, 2016-05-01 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Sun May 01 02:44:30 2016 +0000
- Revision:
- 2:2a5c93bf729a
- Parent:
- 0:e953eb392151
- Child:
- 6:599229a1b06a
3
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
MikamiUitOpen | 0:e953eb392151 | 1 | //------------------------------------------------------------------------------ |
MikamiUitOpen | 0:e953eb392151 | 2 | // イコライザ用フィルタのパラメータを設定し,その周波数特性を描画するためのクラス |
MikamiUitOpen | 0:e953eb392151 | 3 | // |
MikamiUitOpen | 2:2a5c93bf729a | 4 | // 2016/05/01, Copyright (c) 2016 MIKAMI, Naoki |
MikamiUitOpen | 0:e953eb392151 | 5 | //------------------------------------------------------------------------------ |
MikamiUitOpen | 0:e953eb392151 | 6 | |
MikamiUitOpen | 0:e953eb392151 | 7 | #include "DesignerDrawer.hpp" |
MikamiUitOpen | 0:e953eb392151 | 8 | |
MikamiUitOpen | 0:e953eb392151 | 9 | namespace Mikami |
MikamiUitOpen | 0:e953eb392151 | 10 | { |
MikamiUitOpen | 0:e953eb392151 | 11 | // Constructor |
MikamiUitOpen | 0:e953eb392151 | 12 | DesignerDrawer::DesignerDrawer(uint16_t x0, uint16_t y0, |
MikamiUitOpen | 2:2a5c93bf729a | 13 | int stages, float f0, int fs, float db1) |
MikamiUitOpen | 0:e953eb392151 | 14 | : lcd_(GuiBase::GetLcdPtr()), ts_(GuiBase::GetTsPtr()), |
MikamiUitOpen | 2:2a5c93bf729a | 15 | X0_(x0), Y0_(y0), STAGES_(stages), Q_VAL_(1.0f) |
MikamiUitOpen | 0:e953eb392151 | 16 | { |
MikamiUitOpen | 0:e953eb392151 | 17 | drawerObj_ = new FrqRespDrawer(x0, 50.0f, 20000.0f, 142, |
MikamiUitOpen | 2:2a5c93bf729a | 18 | y0, -18, 18, db1, 6, fs); |
MikamiUitOpen | 0:e953eb392151 | 19 | |
MikamiUitOpen | 0:e953eb392151 | 20 | calculator_ = new GrEqParamsCalculator(fs); |
MikamiUitOpen | 0:e953eb392151 | 21 | f0_ = new float[STAGES_]; |
MikamiUitOpen | 0:e953eb392151 | 22 | for (int n=0; n<STAGES_; n++) |
MikamiUitOpen | 0:e953eb392151 | 23 | f0_[n] = f0*powf(2, n); |
MikamiUitOpen | 0:e953eb392151 | 24 | |
MikamiUitOpen | 0:e953eb392151 | 25 | ck_ = new BiquadGrEq::Coefs[STAGES_]; |
MikamiUitOpen | 2:2a5c93bf729a | 26 | for (int n=0; n<STAGES_; n++) |
MikamiUitOpen | 2:2a5c93bf729a | 27 | ck_[n] = calculator_->Execute(f0_[n], 0, Q_VAL_); |
MikamiUitOpen | 0:e953eb392151 | 28 | frqResp_ = new GrEqualizerFrqResp(STAGES_); |
MikamiUitOpen | 0:e953eb392151 | 29 | frqResp_->SetParams(ck_); |
MikamiUitOpen | 0:e953eb392151 | 30 | |
MikamiUitOpen | 0:e953eb392151 | 31 | // 周波数特性の描画 |
MikamiUitOpen | 0:e953eb392151 | 32 | DrawResponse(); |
MikamiUitOpen | 0:e953eb392151 | 33 | } |
MikamiUitOpen | 0:e953eb392151 | 34 | |
MikamiUitOpen | 0:e953eb392151 | 35 | DesignerDrawer::~DesignerDrawer() |
MikamiUitOpen | 0:e953eb392151 | 36 | { |
MikamiUitOpen | 0:e953eb392151 | 37 | delete[] ck_; |
MikamiUitOpen | 0:e953eb392151 | 38 | delete[] f0_; |
MikamiUitOpen | 0:e953eb392151 | 39 | delete calculator_; |
MikamiUitOpen | 0:e953eb392151 | 40 | delete drawerObj_; |
MikamiUitOpen | 0:e953eb392151 | 41 | } |
MikamiUitOpen | 0:e953eb392151 | 42 | |
MikamiUitOpen | 0:e953eb392151 | 43 | // 周波数特性の描画 |
MikamiUitOpen | 0:e953eb392151 | 44 | void DesignerDrawer::DrawResponse() |
MikamiUitOpen | 0:e953eb392151 | 45 | { |
MikamiUitOpen | 0:e953eb392151 | 46 | drawerObj_->DrawAxis(); // 目盛線の描画 |
MikamiUitOpen | 0:e953eb392151 | 47 | FrqRespDrawer::AxisX_Char numX[] = // 横軸の目盛値を描画する際に使う構造体の配列 |
MikamiUitOpen | 0:e953eb392151 | 48 | {{ 50, "50"}, { 100, "100"}, { 200, "200"}, { 500, "500"}, { 1000, "1k"}, |
MikamiUitOpen | 0:e953eb392151 | 49 | { 2000, "2k"}, { 5000, "5k"}, {10000, "10k"}, {20000, "20k"}}; |
MikamiUitOpen | 0:e953eb392151 | 50 | drawerObj_->DrawNumericX(numX, 9, 6, "Frequency [Hz]"); // 横軸の目盛 |
MikamiUitOpen | 0:e953eb392151 | 51 | drawerObj_->DrawNumericY(-24, -6, 6, "%3d"); // 縦軸の目盛値は 6 dB 間隔 |
MikamiUitOpen | 0:e953eb392151 | 52 | drawerObj_->DrawGraph(frqResp_); // 周波数特性のカーブの描画 |
MikamiUitOpen | 0:e953eb392151 | 53 | } |
MikamiUitOpen | 0:e953eb392151 | 54 | |
MikamiUitOpen | 0:e953eb392151 | 55 | // 特定のバンドのイコライザ用フィルタのパラメータの設定と周波数特性の再描画 |
MikamiUitOpen | 0:e953eb392151 | 56 | void DesignerDrawer::DesignAndRedraw(float gainDb, int n) |
MikamiUitOpen | 0:e953eb392151 | 57 | { |
MikamiUitOpen | 0:e953eb392151 | 58 | ck_[n] = calculator_->Execute(f0_[n], gainDb, Q_VAL_); |
MikamiUitOpen | 0:e953eb392151 | 59 | frqResp_->SetParam(ck_[n], n); |
MikamiUitOpen | 0:e953eb392151 | 60 | drawerObj_->Erase(); |
MikamiUitOpen | 0:e953eb392151 | 61 | drawerObj_->DrawAxis(); // 目盛線の描画 |
MikamiUitOpen | 0:e953eb392151 | 62 | drawerObj_->DrawGraph(frqResp_); // 周波数特性のグラフのカーブを描画する |
MikamiUitOpen | 0:e953eb392151 | 63 | } |
MikamiUitOpen | 0:e953eb392151 | 64 | } |