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authork-m_schindler <k-m_schindler@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-08-27 13:28:57 +0000
committerk-m_schindler <k-m_schindler@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-08-27 13:28:57 +0000
commit1ba91d5a0e1df7419a561f6dcf16a0839509a5e7 (patch)
tree3f76e96fc5a3f5b738dabce28642ff2415748ccb /src/Screens/UScreenOptionsRecord.pas
parente9fd8ce40b4cbf006695fd6e56f84071407843c9 (diff)
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Reordering of the directories[1]: moving Game/Code to src
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1302 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'src/Screens/UScreenOptionsRecord.pas')
-rw-r--r--src/Screens/UScreenOptionsRecord.pas785
1 files changed, 785 insertions, 0 deletions
diff --git a/src/Screens/UScreenOptionsRecord.pas b/src/Screens/UScreenOptionsRecord.pas
new file mode 100644
index 00000000..885f7db5
--- /dev/null
+++ b/src/Screens/UScreenOptionsRecord.pas
@@ -0,0 +1,785 @@
+unit UScreenOptionsRecord;
+
+interface
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+uses
+ UThemes,
+ UMusic,
+ URecord,
+ UMenu;
+
+type
+ TDrawState = record
+ ChannelIndex: integer;
+ R, G, B: real; // mapped player color (normal)
+ RD, GD, BD: real; // mapped player color (dark)
+ end;
+
+ TPeakInfo = record
+ Volume: single;
+ Time: cardinal;
+ end;
+
+ TScreenOptionsRecord = class(TMenu)
+ private
+ // max. count of input-channels determined for all devices
+ MaxChannelCount: integer;
+
+ // current input device
+ CurrentDeviceIndex: integer;
+ PreviewDeviceIndex: integer;
+
+ // string arrays for select-slide options
+ InputSourceNames: array of string;
+ InputDeviceNames: array of string;
+
+ // dynamic generated themes for channel select-sliders
+ SelectSlideChannelTheme: array of TThemeSelectSlide;
+
+ // indices for widget-updates
+ SelectInputSourceID: integer;
+ SelectSlideChannelID: array of integer;
+
+ // interaction IDs
+ ExitButtonIID: integer;
+
+ // dummy data for non-available channels
+ ChannelToPlayerMapDummy: integer;
+
+ // preview channel-buffers
+ PreviewChannel: array of TCaptureBuffer;
+ ChannelPeak: array of TPeakInfo;
+
+ // Device source volume
+ SourceVolume: single;
+ NextVolumePollTime: cardinal;
+
+ procedure StartPreview;
+ procedure StopPreview;
+ procedure UpdateInputDevice;
+ procedure ChangeVolume(VolumeChange: single);
+ procedure DrawVolume(x, y, Width, Height: single);
+ procedure DrawVUMeter(const State: TDrawState; x, y, Width, Height: single);
+ procedure DrawPitch(const State: TDrawState; x, y, Width, Height: single);
+ public
+ constructor Create; override;
+ function Draw: boolean; override;
+ function ParseInput(PressedKey: Cardinal; CharCode: WideChar; PressedDown: Boolean): Boolean; override;
+ procedure onShow; override;
+ procedure onHide; override;
+ end;
+
+const
+ PeakDecay = 0.2; // strength of peak-decay (reduction after one sec)
+
+const
+ BarHeight = 11; // height of each bar (volume/vu-meter/pitch)
+ BarUpperSpacing = 1; // spacing between a bar-area and the previous widget
+ BarLowerSpacing = 3; // spacing between a bar-area and the next widget
+ SourceBarsTotalHeight = BarHeight + BarUpperSpacing + BarLowerSpacing;
+ ChannelBarsTotalHeight = 2*BarHeight + BarUpperSpacing + BarLowerSpacing;
+
+implementation
+
+uses
+ SysUtils,
+ Math,
+ SDL,
+ gl,
+ TextGL,
+ UGraphic,
+ UDraw,
+ UMain,
+ UMenuSelectSlide,
+ UMenuText,
+ UFiles,
+ UDisplay,
+ UIni,
+ ULog;
+
+function TScreenOptionsRecord.ParseInput(PressedKey: Cardinal; CharCode: WideChar; PressedDown: Boolean): Boolean;
+begin
+ Result := true;
+ If (PressedDown) Then
+ begin // Key Down
+ // check normal keys
+ case WideCharUpperCase(CharCode)[1] of
+ 'Q':
+ begin
+ Result := false;
+ Exit;
+ end;
+ '+':
+ begin
+ // FIXME: add a nice volume-slider instead
+ // or at least provide visualization and acceleration if the user holds the key pressed.
+ ChangeVolume(0.02);
+ end;
+ '-':
+ begin
+ // FIXME: add a nice volume-slider instead
+ // or at least provide visualization and acceleration if the user holds the key pressed.
+ ChangeVolume(-0.02);
+ end;
+ 'T':
+ begin
+ if ((SDL_GetModState() and KMOD_SHIFT) <> 0) then
+ Ini.ThresholdIndex := (Ini.ThresholdIndex + Length(IThresholdVals) - 1) mod Length(IThresholdVals)
+ else
+ Ini.ThresholdIndex := (Ini.ThresholdIndex + 1) mod Length(IThresholdVals);
+ end;
+ end;
+
+ // check special keys
+ case PressedKey of
+ SDLK_ESCAPE,
+ SDLK_BACKSPACE:
+ begin
+ // Escape -> save nothing - just leave this screen
+
+ AudioPlayback.PlaySound(SoundLib.Back);
+ FadeTo(@ScreenOptions);
+ end;
+ SDLK_RETURN:
+ begin
+ if (SelInteraction = ExitButtonIID) then
+ begin
+ Ini.Save;
+ AudioPlayback.PlaySound(SoundLib.Back);
+ FadeTo(@ScreenOptions);
+ end;
+ end;
+ SDLK_DOWN:
+ InteractNext;
+ SDLK_UP :
+ InteractPrev;
+ SDLK_RIGHT:
+ begin
+ if (SelInteraction >= 0) and (SelInteraction < ExitButtonIID) then
+ begin
+ AudioPlayback.PlaySound(SoundLib.Option);
+ InteractInc;
+ end;
+ UpdateInputDevice;
+ end;
+ SDLK_LEFT:
+ begin
+ if (SelInteraction >= 0) and (SelInteraction < ExitButtonIID) then
+ begin
+ AudioPlayback.PlaySound(SoundLib.Option);
+ InteractDec;
+ end;
+ UpdateInputDevice;
+ end;
+ end;
+ end;
+end;
+
+constructor TScreenOptionsRecord.Create;
+var
+ DeviceIndex: integer;
+ SourceIndex: integer;
+ ChannelIndex: integer;
+ InputDevice: TAudioInputDevice;
+ InputDeviceCfg: PInputDeviceConfig;
+ ChannelTheme: ^TThemeSelectSlide;
+ //ButtonTheme: TThemeButton;
+ WidgetYPos: integer;
+begin
+ inherited Create;
+
+ LoadFromTheme(Theme.OptionsRecord);
+
+ // set CurrentDeviceIndex to a valid device
+ if (Length(AudioInputProcessor.DeviceList) > 0) then
+ CurrentDeviceIndex := 0
+ else
+ CurrentDeviceIndex := -1;
+
+ PreviewDeviceIndex := -1;
+
+ WidgetYPos := 0;
+
+ // init sliders if at least one device was detected
+ if (Length(AudioInputProcessor.DeviceList) > 0) then
+ begin
+ InputDevice := AudioInputProcessor.DeviceList[CurrentDeviceIndex];
+ InputDeviceCfg := @Ini.InputDeviceConfig[InputDevice.CfgIndex];
+
+ // init device-selection slider
+ SetLength(InputDeviceNames, Length(AudioInputProcessor.DeviceList));
+ for DeviceIndex := 0 to High(AudioInputProcessor.DeviceList) do
+ begin
+ InputDeviceNames[DeviceIndex] := AudioInputProcessor.DeviceList[DeviceIndex].Name;
+ end;
+ // add device-selection slider (InteractionID: 0)
+ AddSelectSlide(Theme.OptionsRecord.SelectSlideCard, CurrentDeviceIndex, InputDeviceNames);
+
+ // init source-selection slider
+ SetLength(InputSourceNames, Length(InputDevice.Source));
+ for SourceIndex := 0 to High(InputDevice.Source) do
+ begin
+ InputSourceNames[SourceIndex] := InputDevice.Source[SourceIndex].Name;
+ end;
+ // add source-selection slider (InteractionID: 1)
+ SelectInputSourceID := AddSelectSlide(Theme.OptionsRecord.SelectSlideInput,
+ InputDeviceCfg.Input, InputSourceNames);
+
+ // add space for source volume bar
+ WidgetYPos := Theme.OptionsRecord.SelectSlideInput.Y +
+ Theme.OptionsRecord.SelectSlideInput.H +
+ SourceBarsTotalHeight;
+
+ // find max. channel count of all devices
+ MaxChannelCount := 0;
+ for DeviceIndex := 0 to High(AudioInputProcessor.DeviceList) do
+ begin
+ if (AudioInputProcessor.DeviceList[DeviceIndex].AudioFormat.Channels > MaxChannelCount) then
+ MaxChannelCount := AudioInputProcessor.DeviceList[DeviceIndex].AudioFormat.Channels;
+ end;
+
+ // init channel-to-player mapping sliders
+ SetLength(SelectSlideChannelID, MaxChannelCount);
+ SetLength(SelectSlideChannelTheme, MaxChannelCount);
+
+ for ChannelIndex := 0 to MaxChannelCount-1 do
+ begin
+ // copy reference slide
+ SelectSlideChannelTheme[ChannelIndex] :=
+ Theme.OptionsRecord.SelectSlideChannel;
+ // set current channel-theme
+ ChannelTheme := @SelectSlideChannelTheme[ChannelIndex];
+ // adjust vertical position
+ ChannelTheme.Y := WidgetYPos;
+ // calc size of next slide (add space for bars)
+ WidgetYPos := WidgetYPos + ChannelTheme.H + ChannelBarsTotalHeight;
+ // append channel index to name
+ ChannelTheme.Text := ChannelTheme.Text + IntToStr(ChannelIndex+1);
+
+ // show/hide widgets depending on whether the channel exists
+ if (ChannelIndex < Length(InputDeviceCfg.ChannelToPlayerMap)) then
+ begin
+ // current device has this channel
+
+ // add slider
+ SelectSlideChannelID[ChannelIndex] := AddSelectSlide(ChannelTheme^,
+ InputDeviceCfg.ChannelToPlayerMap[ChannelIndex], IChannelPlayer);
+ end
+ else
+ begin
+ // current device does not have that many channels
+
+ // add slider but hide it and assign a dummy variable to it
+ SelectSlideChannelID[ChannelIndex] := AddSelectSlide(ChannelTheme^,
+ ChannelToPlayerMapDummy, IChannelPlayer);
+ SelectsS[SelectSlideChannelID[ChannelIndex]].Visible := false;
+ end;
+ end;
+ end;
+
+ // add Exit-button
+ //ButtonTheme := Theme.OptionsRecord.ButtonExit;
+ // adjust button position
+ //if (WidgetYPos <> 0) then
+ // ButtonTheme.Y := WidgetYPos;
+ //AddButton(ButtonTheme);
+ // <mog> I uncommented the stuff above, because it's not skinable :X
+ AddButton(Theme.OptionsRecord.ButtonExit);
+ if (Length(Button[0].Text) = 0) then
+ AddButtonText(14, 20, Theme.Options.Description[7]);
+ // store InteractionID
+ if (Length(AudioInputProcessor.DeviceList) > 0) then
+ ExitButtonIID := MaxChannelCount + 2
+ else
+ ExitButtonIID := 0;
+
+ // set focus
+ Interaction := 0;
+end;
+
+procedure TScreenOptionsRecord.UpdateInputDevice;
+var
+ SourceIndex: integer;
+ InputDevice: TAudioInputDevice;
+ InputDeviceCfg: PInputDeviceConfig;
+ ChannelIndex: integer;
+begin
+ //Log.LogStatus('Update input-device', 'TScreenOptionsRecord.UpdateCard') ;
+
+ StopPreview();
+
+ // set CurrentDeviceIndex to a valid device
+ if (CurrentDeviceIndex > High(AudioInputProcessor.DeviceList)) then
+ CurrentDeviceIndex := 0;
+
+ // update sliders if at least one device was detected
+ if (Length(AudioInputProcessor.DeviceList) > 0) then
+ begin
+ InputDevice := AudioInputProcessor.DeviceList[CurrentDeviceIndex];
+ InputDeviceCfg := @Ini.InputDeviceConfig[InputDevice.CfgIndex];
+
+ // update source-selection slider
+ SetLength(InputSourceNames, Length(InputDevice.Source));
+ for SourceIndex := 0 to High(InputDevice.Source) do
+ begin
+ InputSourceNames[SourceIndex] := InputDevice.Source[SourceIndex].Name;
+ end;
+ UpdateSelectSlideOptions(Theme.OptionsRecord.SelectSlideInput, SelectInputSourceID,
+ InputSourceNames, InputDeviceCfg.Input);
+
+ // update channel-to-player mapping sliders
+ for ChannelIndex := 0 to MaxChannelCount-1 do
+ begin
+ // show/hide widgets depending on whether the channel exists
+ if (ChannelIndex < Length(InputDeviceCfg.ChannelToPlayerMap)) then
+ begin
+ // current device has this channel
+
+ // show slider
+ UpdateSelectSlideOptions(SelectSlideChannelTheme[ChannelIndex],
+ SelectSlideChannelID[ChannelIndex], IChannelPlayer,
+ InputDeviceCfg.ChannelToPlayerMap[ChannelIndex]);
+ SelectsS[SelectSlideChannelID[ChannelIndex]].Visible := true;
+ end
+ else
+ begin
+ // current device does not have that many channels
+
+ // hide slider and assign a dummy variable to it
+ UpdateSelectSlideOptions(SelectSlideChannelTheme[ChannelIndex],
+ SelectSlideChannelID[ChannelIndex], IChannelPlayer,
+ ChannelToPlayerMapDummy);
+ SelectsS[SelectSlideChannelID[ChannelIndex]].Visible := false;
+ end;
+ end;
+ end;
+
+ StartPreview();
+end;
+
+procedure TScreenOptionsRecord.ChangeVolume(VolumeChange: single);
+var
+ InputDevice: TAudioInputDevice;
+ Volume: single;
+begin
+ // validate CurrentDeviceIndex
+ if ((CurrentDeviceIndex < 0) or
+ (CurrentDeviceIndex > High(AudioInputProcessor.DeviceList))) then
+ begin
+ Exit;
+ end;
+
+ InputDevice := AudioInputProcessor.DeviceList[CurrentDeviceIndex];
+ if not assigned(InputDevice) then
+ Exit;
+
+ // set new volume
+ Volume := InputDevice.GetVolume() + VolumeChange;
+ InputDevice.SetVolume(Volume);
+ //DebugWriteln('Volume: ' + floattostr(InputDevice.GetVolume));
+
+ // volume must be polled again
+ NextVolumePollTime := 0;
+end;
+
+procedure TScreenOptionsRecord.onShow;
+var
+ ChannelIndex: integer;
+begin
+ inherited;
+
+ Interaction := 0;
+
+ // create preview sound-buffers
+ SetLength(PreviewChannel, MaxChannelCount);
+ for ChannelIndex := 0 to High(PreviewChannel) do
+ PreviewChannel[ChannelIndex] := TCaptureBuffer.Create();
+
+ SetLength(ChannelPeak, MaxChannelCount);
+
+ StartPreview();
+end;
+
+procedure TScreenOptionsRecord.onHide;
+var
+ ChannelIndex: integer;
+begin
+ StopPreview();
+
+ // free preview buffers
+ for ChannelIndex := 0 to High(PreviewChannel) do
+ PreviewChannel[ChannelIndex].Free;
+ SetLength(PreviewChannel, 0);
+ SetLength(ChannelPeak, 0);
+end;
+
+procedure TScreenOptionsRecord.StartPreview;
+var
+ ChannelIndex: integer;
+ Device: TAudioInputDevice;
+begin
+ if ((CurrentDeviceIndex >= 0) and
+ (CurrentDeviceIndex <= High(AudioInputProcessor.DeviceList))) then
+ begin
+ Device := AudioInputProcessor.DeviceList[CurrentDeviceIndex];
+ // set preview channel as active capture channel
+ for ChannelIndex := 0 to High(Device.CaptureChannel) do
+ begin
+ PreviewChannel[ChannelIndex].Clear();
+ Device.LinkCaptureBuffer(ChannelIndex, PreviewChannel[ChannelIndex]);
+ FillChar(ChannelPeak[ChannelIndex], SizeOf(TPeakInfo), 0);
+ end;
+ Device.Start();
+ PreviewDeviceIndex := CurrentDeviceIndex;
+
+ // volume must be polled again
+ NextVolumePollTime := 0;
+ end;
+end;
+
+procedure TScreenOptionsRecord.StopPreview;
+var
+ ChannelIndex: integer;
+ Device: TAudioInputDevice;
+begin
+ if ((PreviewDeviceIndex >= 0) and
+ (PreviewDeviceIndex <= High(AudioInputProcessor.DeviceList))) then
+ begin
+ Device := AudioInputProcessor.DeviceList[PreviewDeviceIndex];
+ Device.Stop;
+ for ChannelIndex := 0 to High(Device.CaptureChannel) do
+ Device.LinkCaptureBuffer(ChannelIndex, nil);
+ end;
+ PreviewDeviceIndex := -1;
+end;
+
+
+procedure TScreenOptionsRecord.DrawVolume(x, y, Width, Height: single);
+var
+ x1, y1, x2, y2: single;
+ VolBarInnerWidth: integer;
+ Volume: single;
+const
+ VolBarInnerHSpacing = 2;
+ VolBarInnerVSpacing = 1;
+begin
+ // coordinates for black rect
+ x1 := x;
+ y1 := y;
+ x2 := x1 + Width;
+ y2 := y1 + Height;
+
+ // init blend mode
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+
+ // draw black background-rect
+ glColor4f(0, 0, 0, 0.8);
+ glBegin(GL_QUADS);
+ glVertex2f(x1, y1);
+ glVertex2f(x2, y1);
+ glVertex2f(x2, y2);
+ glVertex2f(x1, y2);
+ glEnd();
+
+ VolBarInnerWidth := Trunc(Width - 2*VolBarInnerHSpacing);
+
+ // TODO: if no volume is available, show some info (a blue bar maybe)
+ if (SourceVolume >= 0) then
+ Volume := SourceVolume
+ else
+ Volume := 0;
+
+ // coordinates for first half of the volume bar
+ x1 := x + VolBarInnerHSpacing;
+ x2 := x1 + VolBarInnerWidth * Volume;
+ y1 := y1 + VolBarInnerVSpacing;
+ y2 := y2 - VolBarInnerVSpacing;
+
+ // draw volume-bar
+ glBegin(GL_QUADS);
+ // draw volume bar
+ glColor3f(0.4, 0.3, 0.3);
+ glVertex2f(x1, y1);
+ glVertex2f(x1, y2);
+ glColor3f(1, 0.1, 0.1);
+ glVertex2f(x2, y2);
+ glVertex2f(x2, y1);
+ glEnd();
+
+ { not needed anymore
+ // coordinates for separator
+ x1 := x + VolBarInnerHSpacing;
+ x2 := x1 + VolBarInnerWidth;
+
+ // draw separator
+ glBegin(GL_LINE_STRIP);
+ glColor4f(0.1, 0.1, 0.1, 0.2);
+ glVertex2f(x1, y2);
+ glColor4f(0.4, 0.4, 0.4, 0.2);
+ glVertex2f((x1+x2)/2, y2);
+ glColor4f(0.1, 0.1, 0.1, 0.2);
+ glVertex2f(x2, y2);
+ glEnd();
+ }
+
+ glDisable(GL_BLEND);
+end;
+
+procedure TScreenOptionsRecord.DrawVUMeter(const State: TDrawState; x, y, Width, Height: single);
+var
+ x1, y1, x2, y2: single;
+ Volume, PeakVolume: single;
+ Delta: single;
+ VolBarInnerWidth: integer;
+const
+ VolBarInnerHSpacing = 2;
+ VolBarInnerVSpacing = 1;
+begin
+ // coordinates for black rect
+ x1 := x;
+ y1 := y;
+ x2 := x1 + Width;
+ y2 := y1 + Height;
+
+ // init blend mode
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+
+ // draw black background-rect
+ glColor4f(0, 0, 0, 0.8);
+ glBegin(GL_QUADS);
+ glVertex2f(x1, y1);
+ glVertex2f(x2, y1);
+ glVertex2f(x2, y2);
+ glVertex2f(x1, y2);
+ glEnd();
+
+ VolBarInnerWidth := Trunc(Width - 2*VolBarInnerHSpacing);
+
+ // vertical positions
+ y1 := y1 + VolBarInnerVSpacing;
+ y2 := y2 - VolBarInnerVSpacing;
+
+ // coordinates for bevel
+ x1 := x + VolBarInnerHSpacing;
+ x2 := x1 + VolBarInnerWidth;
+
+ glBegin(GL_QUADS);
+ Volume := PreviewChannel[State.ChannelIndex].MaxSampleVolume();
+
+ // coordinates for volume bar
+ x1 := x + VolBarInnerHSpacing;
+ x2 := x1 + VolBarInnerWidth * Volume;
+
+ // draw volume bar
+ glColor3f(State.RD, State.GD, State.BD);
+ glVertex2f(x1, y1);
+ glVertex2f(x1, y2);
+ glColor3f(State.R, State.G, State.B);
+ glVertex2f(x2, y2);
+ glVertex2f(x2, y1);
+
+ Delta := (SDL_GetTicks() - ChannelPeak[State.ChannelIndex].Time)/1000;
+ PeakVolume := ChannelPeak[State.ChannelIndex].Volume - Delta*Delta*PeakDecay;
+
+ // determine new peak-volume
+ if (Volume > PeakVolume) then
+ begin
+ PeakVolume := Volume;
+ ChannelPeak[State.ChannelIndex].Volume := Volume;
+ ChannelPeak[State.ChannelIndex].Time := SDL_GetTicks();
+ end;
+
+ x1 := x + VolBarInnerHSpacing + VolBarInnerWidth * PeakVolume;
+ x2 := x1 + 2;
+
+ // draw peak
+ glColor3f(0.8, 0.8, 0.8);
+ glVertex2f(x1, y1);
+ glVertex2f(x1, y2);
+ glVertex2f(x2, y2);
+ glVertex2f(x2, y1);
+
+ // draw threshold
+ x1 := x + VolBarInnerHSpacing;
+ x2 := x1 + VolBarInnerWidth * IThresholdVals[Ini.ThresholdIndex];
+
+ glColor4f(0.3, 0.3, 0.3, 0.6);
+ glVertex2f(x1, y1);
+ glVertex2f(x1, y2);
+ glVertex2f(x2, y2);
+ glVertex2f(x2, y1);
+ glEnd();
+
+ glDisable(GL_BLEND);
+end;
+
+procedure TScreenOptionsRecord.DrawPitch(const State: TDrawState; x, y, Width, Height: single);
+var
+ x1, y1, x2, y2: single;
+ i: integer;
+ ToneBoxWidth: real;
+ ToneString: PChar;
+ ToneStringWidth, ToneStringHeight: real;
+ ToneStringMaxWidth: real;
+ ToneStringCenterXOffset: real;
+const
+ PitchBarInnerHSpacing = 2;
+ PitchBarInnerVSpacing = 1;
+begin
+ // calc tone pitch
+ PreviewChannel[State.ChannelIndex].AnalyzeBuffer();
+
+ // coordinates for black rect
+ x1 := x;
+ y1 := y;
+ x2 := x + Width;
+ y2 := y + Height;
+
+ // init blend mode
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+
+ // draw black background-rect
+ glColor4f(0, 0, 0, 0.8);
+ glBegin(GL_QUADS);
+ glVertex2f(x1, y1);
+ glVertex2f(x2, y1);
+ glVertex2f(x2, y2);
+ glVertex2f(x1, y2);
+ glEnd();
+
+ // coordinates for tone boxes
+ ToneBoxWidth := Width / NumHalftones;
+ y1 := y1 + PitchBarInnerVSpacing;
+ y2 := y2 - PitchBarInnerVSpacing;
+
+ glBegin(GL_QUADS);
+ // draw tone boxes
+ for i := 0 to NumHalftones-1 do
+ begin
+ x1 := x + i * ToneBoxWidth + PitchBarInnerHSpacing;
+ x2 := x1 + ToneBoxWidth - 2*PitchBarInnerHSpacing;
+
+ if ((PreviewChannel[State.ChannelIndex].ToneValid) and
+ (PreviewChannel[State.ChannelIndex].ToneAbs = i)) then
+ begin
+ // highlight current tone-pitch
+ glColor3f(1, i / (NumHalftones-1), 0)
+ end
+ else
+ begin
+ // grey other tone-pitches
+ glColor3f(0.3, i / (NumHalftones-1) * 0.3, 0);
+ end;
+
+ glVertex2f(x1, y1);
+ glVertex2f(x2, y1);
+ glVertex2f(x2, y2);
+ glVertex2f(x1, y2);
+ end;
+ glEnd();
+
+ glDisable(GL_BLEND);
+
+ ///
+ // draw the name of the tone
+ ///////
+
+ ToneString := PChar(PreviewChannel[State.ChannelIndex].ToneString);
+ ToneStringHeight := ChannelBarsTotalHeight;
+
+ // initialize font
+ // TODO: what about reflection, italic etc.?
+ SetFontSize(ToneStringHeight/3);
+
+ // center
+ // Note: for centering let us assume that G#4 has the max. horizontal extent
+ ToneStringWidth := glTextWidth(ToneString);
+ ToneStringMaxWidth := glTextWidth('G#4');
+ ToneStringCenterXOffset := (ToneStringMaxWidth-ToneStringWidth) / 2;
+
+ // draw
+ SetFontPos(x-ToneStringWidth-ToneStringCenterXOffset, y-ToneStringHeight/2);
+ glColor3f(0, 0, 0);
+ glPrint(ToneString);
+end;
+
+function TScreenOptionsRecord.Draw: boolean;
+var
+ i: integer;
+ Device: TAudioInputDevice;
+ DeviceCfg: PInputDeviceConfig;
+ SelectSlide: TSelectSlide;
+ BarXOffset, BarYOffset, BarWidth: real;
+ ChannelIndex: integer;
+ State: TDrawState;
+begin
+ DrawBG;
+ DrawFG;
+
+ if ((PreviewDeviceIndex >= 0) and
+ (PreviewDeviceIndex <= High(AudioInputProcessor.DeviceList))) then
+ begin
+ Device := AudioInputProcessor.DeviceList[PreviewDeviceIndex];
+ DeviceCfg := @Ini.InputDeviceConfig[Device.CfgIndex];
+
+ // update source volume
+ if (SDL_GetTicks() >= NextVolumePollTime) then
+ begin
+ NextVolumePollTime := SDL_GetTicks() + 500; // next poll in 500ms
+ SourceVolume := Device.GetVolume();
+ end;
+
+ // get source select slide
+ SelectSlide := SelectsS[SelectInputSourceID];
+ BarXOffset := SelectSlide.TextureSBG.X;
+ BarYOffset := SelectSlide.TextureSBG.Y + SelectSlide.TextureSBG.H + BarUpperSpacing;
+ BarWidth := SelectSlide.TextureSBG.W;
+ DrawVolume(SelectSlide.TextureSBG.X, BarYOffset, BarWidth, BarHeight);
+
+ for ChannelIndex := 0 to High(Device.CaptureChannel) do
+ begin
+ // load player color mapped to current input channel
+ if (DeviceCfg.ChannelToPlayerMap[ChannelIndex] > 0) then
+ begin
+ // set mapped channel to corresponding player-color
+ LoadColor(State.R, State.G, State.B, 'P'+ IntToStr(DeviceCfg.ChannelToPlayerMap[ChannelIndex]) + 'Dark');
+ end
+ else
+ begin
+ // set non-mapped channel to white
+ State.R := 1; State.G := 1; State.B := 1;
+ end;
+
+ // dark player colors
+ State.RD := 0.2 * State.R;
+ State.GD := 0.2 * State.G;
+ State.BD := 0.2 * State.B;
+
+ // channel select slide
+ SelectSlide := SelectsS[SelectSlideChannelID[ChannelIndex]];
+
+ BarXOffset := SelectSlide.TextureSBG.X;
+ BarYOffset := SelectSlide.TextureSBG.Y + SelectSlide.TextureSBG.H + BarUpperSpacing;
+ BarWidth := SelectSlide.TextureSBG.W;
+
+ State.ChannelIndex := ChannelIndex;
+
+ DrawVUMeter(State, BarXOffset, BarYOffset, BarWidth, BarHeight);
+ DrawPitch(State, BarXOffset, BarYOffset+BarHeight, BarWidth, BarHeight);
+ end;
+ end;
+
+ Result := True;
+end;
+
+
+end.