diff --git a/src/gui/sampleEdit.cpp b/src/gui/sampleEdit.cpp
index 569200c83..cf7f01764 100644
--- a/src/gui/sampleEdit.cpp
+++ b/src/gui/sampleEdit.cpp
@@ -42,7 +42,7 @@ void FurnaceGUI::drawSampleEdit() {
   if (ImGui::Begin("Sample Editor",&sampleEditOpen,settings.allowEditDocking?0:ImGuiWindowFlags_NoDocking)) {
     if (curSample<0 || curSample>=(int)e->song.sample.size()) {
       ImGui::Text("no sample selected");
-    } else if (!settings.sampleLayout) {
+    } else {
       DivSample* sample=e->song.sample[curSample];
       String sampleType="Invalid";
       if (sample->depth<17) {
@@ -50,1342 +50,1038 @@ void FurnaceGUI::drawSampleEdit() {
           sampleType=sampleDepths[sample->depth];
         }
       }
-      ImGui::Text("Name");
-      ImGui::SameLine();
-      ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-      if (ImGui::InputText("##SampleName",&sample->name)) {
-        MARK_MODIFIED;
-      }
-
-      if (ImGui::BeginTable("SampleProps",4,ImGuiTableFlags_SizingStretchSame)) {
-        ImGui::TableNextRow();
-        ImGui::TableNextColumn();
-        ImGui::Text("Type");
+      if (!settings.sampleLayout) {
+        ImGui::Text("Name");
         ImGui::SameLine();
         ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::BeginCombo("##SampleType",sampleType.c_str())) {
-          for (int i=0; i<17; i++) {
-            if (sampleDepths[i]==NULL) continue;
-            if (ImGui::Selectable(sampleDepths[i])) {
-              sample->prepareUndo(true);
-              sample->depth=i;
-              e->renderSamplesP();
-              updateSampleTex=true;
-              MARK_MODIFIED;
-            }
-          }
-          ImGui::EndCombo();
+        if (ImGui::InputText("##SampleName",&sample->name)) {
+          MARK_MODIFIED;
         }
 
-        ImGui::TableNextColumn();
-        ImGui::Text("Rate (Hz)");
-        ImGui::SameLine();
-        ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::InputInt("##SampleRate",&sample->rate,10,200)) { MARK_MODIFIED
-          if (sample->rate<100) sample->rate=100;
-          if (sample->rate>96000) sample->rate=96000;
-        }
-
-        ImGui::TableNextColumn();
-        ImGui::Text("C-4 (Hz)");
-        ImGui::SameLine();
-        ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::InputInt("##SampleCenter",&sample->centerRate,10,200)) { MARK_MODIFIED
-          if (sample->centerRate<100) sample->centerRate=100;
-          if (sample->centerRate>65535) sample->centerRate=65535;
-        }
-
-        ImGui::TableNextColumn();
-        bool doLoop=(sample->loopStart>=0);
-        if (ImGui::Checkbox("Loop",&doLoop)) { MARK_MODIFIED
-          if (doLoop) {
-            sample->loopStart=0;
-          } else {
-            sample->loopStart=-1;
-          }
-          updateSampleTex=true;
-        }
-        if (doLoop) {
+        if (ImGui::BeginTable("SampleProps",4,ImGuiTableFlags_SizingStretchSame)) {
+          ImGui::TableNextRow();
+          ImGui::TableNextColumn();
+          ImGui::Text("Type");
           ImGui::SameLine();
           ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-          if (ImGui::InputInt("##LoopPosition",&sample->loopStart,1,10)) { MARK_MODIFIED
-            if (sample->loopStart<0 || sample->loopStart>=(int)sample->samples) {
+          if (ImGui::BeginCombo("##SampleType",sampleType.c_str())) {
+            for (int i=0; i<17; i++) {
+              if (sampleDepths[i]==NULL) continue;
+              if (ImGui::Selectable(sampleDepths[i])) {
+                sample->prepareUndo(true);
+                sample->depth=i;
+                e->renderSamplesP();
+                updateSampleTex=true;
+                MARK_MODIFIED;
+              }
+            }
+            ImGui::EndCombo();
+          }
+
+          ImGui::TableNextColumn();
+          ImGui::Text("Rate (Hz)");
+          ImGui::SameLine();
+          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+          if (ImGui::InputInt("##SampleRate",&sample->rate,10,200)) { MARK_MODIFIED
+            if (sample->rate<100) sample->rate=100;
+            if (sample->rate>96000) sample->rate=96000;
+          }
+
+          ImGui::TableNextColumn();
+          ImGui::Text("C-4 (Hz)");
+          ImGui::SameLine();
+          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+          if (ImGui::InputInt("##SampleCenter",&sample->centerRate,10,200)) { MARK_MODIFIED
+            if (sample->centerRate<100) sample->centerRate=100;
+            if (sample->centerRate>65535) sample->centerRate=65535;
+          }
+
+          ImGui::TableNextColumn();
+          bool doLoop=(sample->loopStart>=0);
+          if (ImGui::Checkbox("Loop",&doLoop)) { MARK_MODIFIED
+            if (doLoop) {
               sample->loopStart=0;
+            } else {
+              sample->loopStart=-1;
             }
             updateSampleTex=true;
           }
-        }
-        ImGui::EndTable();
-      }
-
-      /*
-      if (ImGui::Button("Apply")) {
-        e->renderSamplesP();
-      }
-      ImGui::SameLine();
-      */
-      ImGui::Separator();
-
-      ImGui::BeginDisabled(sample->depth!=8 && sample->depth!=16);
-
-      ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(!sampleDragMode));
-      if (ImGui::Button(ICON_FA_I_CURSOR "##SSelect")) {
-        sampleDragMode=false;
-      }
-      ImGui::PopStyleColor();
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Edit mode: Select");
-      }
-      ImGui::SameLine();
-      ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(sampleDragMode));
-      if (ImGui::Button(ICON_FA_PENCIL "##SDraw")) {
-        sampleDragMode=true;
-      }
-      ImGui::PopStyleColor();
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Edit mode: Draw");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_ARROWS_H "##SResize");
-      if (ImGui::IsItemClicked()) {
-        resizeSize=sample->samples;
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Resize");
-      }
-      if (openSampleResizeOpt) {
-        openSampleResizeOpt=false;
-        ImGui::OpenPopup("SResizeOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SResizeOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        if (ImGui::InputInt("Samples",&resizeSize,1,64)) {
-          if (resizeSize<0) resizeSize=0;
-          if (resizeSize>16777215) resizeSize=16777215;
-        }
-        if (ImGui::Button("Resize")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            if (!sample->resize(resizeSize)) {
-              showError("couldn't resize! make sure your sample is 8 or 16-bit.");
+          if (doLoop) {
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+            if (ImGui::InputInt("##LoopPosition",&sample->loopStart,1,10)) { MARK_MODIFIED
+              if (sample->loopStart<0 || sample->loopStart>=(int)sample->samples) {
+                sample->loopStart=0;
+              }
+              updateSampleTex=true;
             }
-            e->renderSamples();
-          });
-          updateSampleTex=true;
-          sampleSelStart=-1;
-          sampleSelEnd=-1;
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndTable();
         }
-        ImGui::EndPopup();
-      } else {
-        resizeSize=sample->samples;
-      }
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_EXPAND "##SResample");
-      if (ImGui::IsItemClicked()) {
-        resampleTarget=sample->rate;
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Resample");
-      }
-      if (openSampleResampleOpt) {
-        openSampleResampleOpt=false;
-        ImGui::OpenPopup("SResampleOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SResampleOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        ImGui::Text("Rate");
-        if (ImGui::InputDouble("##SRRate",&resampleTarget,1.0,50.0,"%g")) {
-          if (resampleTarget<0) resampleTarget=0;
-          if (resampleTarget>96000) resampleTarget=96000;
+
+        /*
+        if (ImGui::Button("Apply")) {
+          e->renderSamplesP();
         }
         ImGui::SameLine();
-        if (ImGui::Button("0.5x")) {
-          resampleTarget*=0.5;
+        */
+        ImGui::Separator();
+
+        ImGui::BeginDisabled(sample->depth!=8 && sample->depth!=16);
+
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(!sampleDragMode));
+        if (ImGui::Button(ICON_FA_I_CURSOR "##SSelect")) {
+          sampleDragMode=false;
+        }
+        ImGui::PopStyleColor();
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit mode: Select");
         }
         ImGui::SameLine();
-        if (ImGui::Button("==")) {
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(sampleDragMode));
+        if (ImGui::Button(ICON_FA_PENCIL "##SDraw")) {
+          sampleDragMode=true;
+        }
+        ImGui::PopStyleColor();
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit mode: Draw");
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_ARROWS_H "##SResize");
+        if (ImGui::IsItemClicked()) {
+          resizeSize=sample->samples;
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Resize");
+        }
+        if (openSampleResizeOpt) {
+          openSampleResizeOpt=false;
+          ImGui::OpenPopup("SResizeOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SResizeOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          if (ImGui::InputInt("Samples",&resizeSize,1,64)) {
+            if (resizeSize<0) resizeSize=0;
+            if (resizeSize>16777215) resizeSize=16777215;
+          }
+          if (ImGui::Button("Resize")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              if (!sample->resize(resizeSize)) {
+                showError("couldn't resize! make sure your sample is 8 or 16-bit.");
+              }
+              e->renderSamples();
+            });
+            updateSampleTex=true;
+            sampleSelStart=-1;
+            sampleSelEnd=-1;
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        } else {
+          resizeSize=sample->samples;
+        }
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_EXPAND "##SResample");
+        if (ImGui::IsItemClicked()) {
+          resampleTarget=sample->rate;
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Resample");
+        }
+        if (openSampleResampleOpt) {
+          openSampleResampleOpt=false;
+          ImGui::OpenPopup("SResampleOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SResampleOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          ImGui::Text("Rate");
+          if (ImGui::InputDouble("##SRRate",&resampleTarget,1.0,50.0,"%g")) {
+            if (resampleTarget<0) resampleTarget=0;
+            if (resampleTarget>96000) resampleTarget=96000;
+          }
+          ImGui::SameLine();
+          if (ImGui::Button("0.5x")) {
+            resampleTarget*=0.5;
+          }
+          ImGui::SameLine();
+          if (ImGui::Button("==")) {
+            resampleTarget=sample->rate;
+          }
+          ImGui::SameLine();
+          if (ImGui::Button("2.0x")) {
+            resampleTarget*=2.0;
+          }
+          double factor=resampleTarget/(double)sample->rate;
+          if (ImGui::InputDouble("Factor",&factor,0.125,0.5,"%g")) {
+            resampleTarget=(double)sample->rate*factor;
+            if (resampleTarget<0) resampleTarget=0;
+            if (resampleTarget>96000) resampleTarget=96000;
+          }
+          ImGui::Combo("Filter",&resampleStrat,resampleStrats,6);
+          if (ImGui::Button("Resample")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              if (!sample->resample(resampleTarget,resampleStrat)) {
+                showError("couldn't resample! make sure your sample is 8 or 16-bit.");
+              }
+              e->renderSamples();
+            });
+            updateSampleTex=true;
+            sampleSelStart=-1;
+            sampleSelEnd=-1;
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        } else {
           resampleTarget=sample->rate;
         }
         ImGui::SameLine();
-        if (ImGui::Button("2.0x")) {
-          resampleTarget*=2.0;
+        ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_UNDO "##SUndo")) {
+          doUndoSample();
         }
-        double factor=resampleTarget/(double)sample->rate;
-        if (ImGui::InputDouble("Factor",&factor,0.125,0.5,"%g")) {
-          resampleTarget=(double)sample->rate*factor;
-          if (resampleTarget<0) resampleTarget=0;
-          if (resampleTarget>96000) resampleTarget=96000;
-        }
-        ImGui::Combo("Filter",&resampleStrat,resampleStrats,6);
-        if (ImGui::Button("Resample")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            if (!sample->resample(resampleTarget,resampleStrat)) {
-              showError("couldn't resample! make sure your sample is 8 or 16-bit.");
-            }
-            e->renderSamples();
-          });
-          updateSampleTex=true;
-          sampleSelStart=-1;
-          sampleSelEnd=-1;
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
-        }
-        ImGui::EndPopup();
-      } else {
-        resampleTarget=sample->rate;
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_UNDO "##SUndo")) {
-        doUndoSample();
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Undo");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_REPEAT "##SRedo")) {
-        doRedoSample();
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Redo");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_VOLUME_UP "##SAmplify");
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Amplify");
-      }
-      if (openSampleAmplifyOpt) {
-        openSampleAmplifyOpt=false;
-        ImGui::OpenPopup("SAmplifyOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SAmplifyOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        ImGui::Text("Volume");
-        if (ImGui::InputFloat("##SRVolume",&amplifyVol,10.0,50.0,"%g%%")) {
-          if (amplifyVol<0) amplifyVol=0;
-          if (amplifyVol>10000) amplifyVol=10000;
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Undo");
         }
         ImGui::SameLine();
-        ImGui::Text("(%.1fdB)",20.0*log10(amplifyVol/100.0f));
-        if (ImGui::Button("Apply")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            SAMPLE_OP_BEGIN;
-            float vol=amplifyVol/100.0f;
-
-            if (sample->depth==16) {
-              for (unsigned int i=start; i<end; i++) {
-                float val=sample->data16[i]*vol;
-                if (val<-32768) val=-32768;
-                if (val>32767) val=32767;
-                sample->data16[i]=val;
-              }
-            } else if (sample->depth==8) {
-              for (unsigned int i=start; i<end; i++) {
-                float val=sample->data8[i]*vol;
-                if (val<-128) val=-128;
-                if (val>127) val=127;
-                sample->data8[i]=val;
-              }
-            }
-
-            updateSampleTex=true;
-
-            e->renderSamples();
-          });
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
+        if (ImGui::Button(ICON_FA_REPEAT "##SRedo")) {
+          doRedoSample();
         }
-        ImGui::EndPopup();
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ARROWS_V "##SNormalize")) {
-        doAction(GUI_ACTION_SAMPLE_NORMALIZE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Normalize");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ARROW_UP "##SFadeIn")) {
-        doAction(GUI_ACTION_SAMPLE_FADE_IN);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Fade in");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ARROW_DOWN "##SFadeOut")) {
-        doAction(GUI_ACTION_SAMPLE_FADE_OUT);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Fade out");
-      }
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_ADJUST "##SInsertSilence");
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Insert silence");
-      }
-      if (openSampleSilenceOpt) {
-        openSampleSilenceOpt=false;
-        ImGui::OpenPopup("SSilenceOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SSilenceOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        if (ImGui::InputInt("Samples",&silenceSize,1,64)) {
-          if (silenceSize<0) silenceSize=0;
-          if (silenceSize>16777215) silenceSize=16777215;
-        }
-        if (ImGui::Button("Resize")) {
-          int pos=(sampleSelStart==-1 || sampleSelStart==sampleSelEnd)?sample->samples:sampleSelStart;
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample,pos]() {
-            if (!sample->insert(pos,silenceSize)) {
-              showError("couldn't insert! make sure your sample is 8 or 16-bit.");
-            }
-            e->renderSamples();
-          });
-          updateSampleTex=true;
-          sampleSelStart=pos;
-          sampleSelEnd=pos+silenceSize;
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
-        }
-        ImGui::EndPopup();
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ERASER "##SSilence")) {
-        doAction(GUI_ACTION_SAMPLE_SILENCE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Apply silence");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_TIMES "##SDelete")) {
-        doAction(GUI_ACTION_SAMPLE_DELETE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Delete");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_CROP "##STrim")) {
-        doAction(GUI_ACTION_SAMPLE_TRIM);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Trim");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_BACKWARD "##SReverse")) {
-        doAction(GUI_ACTION_SAMPLE_REVERSE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Reverse");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_SORT_AMOUNT_ASC "##SInvert")) {
-        doAction(GUI_ACTION_SAMPLE_INVERT);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Invert");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_LEVEL_DOWN "##SSign")) {
-        doAction(GUI_ACTION_SAMPLE_SIGN);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Signed/unsigned exchange");
-      }
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_INDUSTRY "##SFilter");
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Apply filter");
-      }
-      if (openSampleFilterOpt) {
-        openSampleFilterOpt=false;
-        ImGui::OpenPopup("SFilterOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SFilterOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        float lowP=sampleFilterL*100.0f;
-        float bandP=sampleFilterB*100.0f;
-        float highP=sampleFilterH*100.0f;
-        float resP=sampleFilterRes*100.0f;
-        ImGui::Text("Cutoff:");
-        if (ImGui::SliderFloat("From",&sampleFilterCutStart,0.0f,sample->rate*0.5,"%.0fHz")) {
-          if (sampleFilterCutStart<0.0) sampleFilterCutStart=0.0;
-          if (sampleFilterCutStart>sample->rate*0.5) sampleFilterCutStart=sample->rate*0.5;
-        }
-        if (ImGui::SliderFloat("To",&sampleFilterCutEnd,0.0f,sample->rate*0.5,"%.0fHz")) {
-          if (sampleFilterCutEnd<0.0) sampleFilterCutEnd=0.0;
-          if (sampleFilterCutEnd>sample->rate*0.5) sampleFilterCutEnd=sample->rate*0.5;
-        }
-        ImGui::Separator();
-        if (ImGui::SliderFloat("Resonance",&resP,0.0f,99.0f,"%.1f%%")) {
-          sampleFilterRes=resP/100.0f;
-          if (sampleFilterRes<0.0f) sampleFilterRes=0.0f;
-          if (sampleFilterRes>0.99f) sampleFilterRes=0.99f;
-        }
-        ImGui::Text("Power");
-        ImGui::SameLine();
-        if (ImGui::RadioButton("1x",sampleFilterPower==1)) {
-          sampleFilterPower=1;
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Redo");
         }
         ImGui::SameLine();
-        if (ImGui::RadioButton("2x",sampleFilterPower==2)) {
-          sampleFilterPower=2;
-        }
+        ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
         ImGui::SameLine();
-        if (ImGui::RadioButton("3x",sampleFilterPower==3)) {
-          sampleFilterPower=3;
+        ImGui::Button(ICON_FA_VOLUME_UP "##SAmplify");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Amplify");
         }
-        ImGui::Separator();
-        if (ImGui::SliderFloat("Low-pass",&lowP,0.0f,100.0f,"%.1f%%")) {
-          sampleFilterL=lowP/100.0f;
-          if (sampleFilterL<0.0f) sampleFilterL=0.0f;
-          if (sampleFilterL>1.0f) sampleFilterL=1.0f;
+        if (openSampleAmplifyOpt) {
+          openSampleAmplifyOpt=false;
+          ImGui::OpenPopup("SAmplifyOpt");
         }
-        if (ImGui::SliderFloat("Band-pass",&bandP,0.0f,100.0f,"%.1f%%")) {
-          sampleFilterB=bandP/100.0f;
-          if (sampleFilterB<0.0f) sampleFilterB=0.0f;
-          if (sampleFilterB>1.0f) sampleFilterB=1.0f;
-        }
-        if (ImGui::SliderFloat("High-pass",&highP,0.0f,100.0f,"%.1f%%")) {
-          sampleFilterH=highP/100.0f;
-          if (sampleFilterH<0.0f) sampleFilterH=0.0f;
-          if (sampleFilterH>1.0f) sampleFilterH=1.0f;
-        }
-
-        if (ImGui::Button("Apply")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            SAMPLE_OP_BEGIN;
-            float res=1.0-pow(sampleFilterRes,0.5f);
-            float low=0;
-            float band=0;
-            float high=0;
-
-            double power=(sampleFilterCutStart>sampleFilterCutEnd)?0.5:2.0;
-
-            if (sample->depth==16) {
-              for (unsigned int i=start; i<end; i++) {
-                double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
-                double cut=sin((freq/double(sample->rate))*M_PI);
-
-                for (int j=0; j<sampleFilterPower; j++) {
-                  low=low+cut*band;
-                  high=float(sample->data16[i])-low-(res*band);
-                  band=cut*high+band;
-                }
-
-                float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
-                if (val<-32768) val=-32768;
-                if (val>32767) val=32767;
-                sample->data16[i]=val;
-              }
-            } else if (sample->depth==8) {
-              for (unsigned int i=start; i<end; i++) {
-                double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
-                double cut=sin((freq/double(sample->rate))*M_PI);
-
-                for (int j=0; j<sampleFilterPower; j++) {
-                  low=low+cut*band;
-                  high=float(sample->data8[i])-low-(res*band);
-                  band=cut*high+band;
-                }
-
-                float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
-                if (val<-128) val=-128;
-                if (val>127) val=127;
-                sample->data8[i]=val;
-              }
-            }
-
-            updateSampleTex=true;
-
-            e->renderSamples();
-          });
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
-        }
-        ImGui::EndPopup();
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_VOLUME_UP "##PreviewSample")) {
-        e->previewSample(curSample);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Preview sample");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_VOLUME_OFF "##StopSample")) {
-        e->stopSamplePreview();
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Stop sample preview");
-      }
-
-      ImGui::SameLine();
-      double zoomPercent=100.0/sampleZoom;
-      ImGui::Text("Zoom");
-      ImGui::SameLine();
-      ImGui::SetNextItemWidth(150.0f*dpiScale);
-      if (ImGui::InputDouble("##SZoom",&zoomPercent,5.0,20.0,"%g%%")) {
-        if (zoomPercent>10000.0) zoomPercent=10000.0;
-        if (zoomPercent<1.0) zoomPercent=1.0;
-        sampleZoom=100.0/zoomPercent;
-        if (sampleZoom<0.01) sampleZoom=0.01;
-        sampleZoomAuto=false;
-        updateSampleTex=true;
-      }
-      ImGui::SameLine();
-      if (sampleZoomAuto) {
-        if (ImGui::Button("100%")) {
-          sampleZoom=1.0;
-          sampleZoomAuto=false;
-          updateSampleTex=true;
-        }
-      } else {
-        if (ImGui::Button("Auto")) {
-          sampleZoomAuto=true;
-          updateSampleTex=true;
-        }
-      }
-
-      ImGui::Separator();
-
-      ImVec2 avail=ImGui::GetContentRegionAvail();
-      if(ImGui::GetContentRegionAvail().y > (ImGui::GetContentRegionAvail().x / 2.0f)) {
-        avail=ImVec2(ImGui::GetContentRegionAvail().x,ImGui::GetContentRegionAvail().x / 2.0f);
-      }
-      avail.y-=ImGui::GetFontSize()+ImGui::GetStyle().ItemSpacing.y+ImGui::GetStyle().ScrollbarSize;
-      if (avail.y < 1.0){ //Prevents crash
-        avail.y = 1.0;
-      }
-      
-      int availX=avail.x;
-      int availY=avail.y;
-
-
-      if (sampleZoomAuto) {
-        samplePos=0;
-        if (sample->samples<1 || avail.x<=0) {
-          sampleZoom=1.0;
-        } else {
-          sampleZoom=(double)sample->samples/avail.x;
-        }
-        if (sampleZoom!=prevSampleZoom) {
-          prevSampleZoom=sampleZoom;
-          updateSampleTex=true;
-        }
-      }
-
-      if (sampleTex==NULL || sampleTexW!=avail.x || sampleTexH!=avail.y) {
-        if (sampleTex!=NULL) {
-          SDL_DestroyTexture(sampleTex);
-          sampleTex=NULL;
-        }
-        if (avail.x>=1 && avail.y>=1) {
-          logD("recreating sample texture.");
-          sampleTex=SDL_CreateTexture(sdlRend,SDL_PIXELFORMAT_ABGR8888,SDL_TEXTUREACCESS_STREAMING,avail.x,avail.y);
-          sampleTexW=avail.x;
-          sampleTexH=avail.y;
-          if (sampleTex==NULL) {
-            logE("error while creating sample texture! %s",SDL_GetError());
-          } else {
-            updateSampleTex=true;
+        if (ImGui::BeginPopupContextItem("SAmplifyOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          ImGui::Text("Volume");
+          if (ImGui::InputFloat("##SRVolume",&amplifyVol,10.0,50.0,"%g%%")) {
+            if (amplifyVol<0) amplifyVol=0;
+            if (amplifyVol>10000) amplifyVol=10000;
           }
-        }
-      }
+          ImGui::SameLine();
+          ImGui::Text("(%.1fdB)",20.0*log10(amplifyVol/100.0f));
+          if (ImGui::Button("Apply")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              SAMPLE_OP_BEGIN;
+              float vol=amplifyVol/100.0f;
 
-      if (sampleTex!=NULL) {
-        if (updateSampleTex) {
-          unsigned int* data=NULL;
-          int pitch=0;
-          logD("updating sample texture.");
-          if (SDL_LockTexture(sampleTex,NULL,(void**)&data,&pitch)!=0) {
-            logE("error while locking sample texture! %s",SDL_GetError());
-          } else {
-            ImU32 bgColor=ImGui::GetColorU32(ImGuiCol_FrameBg);
-            ImU32 bgColorLoop=ImAlphaBlendColors(bgColor,ImGui::GetColorU32(ImGuiCol_FrameBgHovered,0.5));
-            ImU32 lineColor=ImGui::GetColorU32(ImGuiCol_PlotLines);
-            ImU32 centerLineColor=ImAlphaBlendColors(bgColor,ImGui::GetColorU32(ImGuiCol_PlotLines,0.25));
-            for (int i=0; i<availY; i++) {
-              for (int j=0; j<availX; j++) {
-                if (sample->loopStart>=0 && sample->loopStart<(int)sample->samples && ((j+samplePos)*sampleZoom)>sample->loopStart) {
-                  data[i*availX+j]=bgColorLoop;
-                } else {
-                  data[i*availX+j]=bgColor;
+              if (sample->depth==16) {
+                for (unsigned int i=start; i<end; i++) {
+                  float val=sample->data16[i]*vol;
+                  if (val<-32768) val=-32768;
+                  if (val>32767) val=32767;
+                  sample->data16[i]=val;
+                }
+              } else if (sample->depth==8) {
+                for (unsigned int i=start; i<end; i++) {
+                  float val=sample->data8[i]*vol;
+                  if (val<-128) val=-128;
+                  if (val>127) val=127;
+                  sample->data8[i]=val;
                 }
               }
-            }
-            if (availY>0) {
-              for (int i=availX*(availY>>1); i<availX*(1+(availY>>1)); i++) {
-                data[i]=centerLineColor;
-              }
-            }
-            unsigned int xCoarse=samplePos;
-            unsigned int xFine=0;
-            unsigned int xAdvanceCoarse=sampleZoom;
-            unsigned int xAdvanceFine=fmod(sampleZoom,1.0)*16777216;
-            for (unsigned int i=0; i<(unsigned int)availX; i++) {
-              if (xCoarse>=sample->samples) break;
-              int y1, y2;
-              int totalAdvance=0;
-              if (sample->depth==8) {
-                y1=((unsigned char)sample->data8[xCoarse]^0x80)*availY/256;
-              } else {
-                y1=((unsigned short)sample->data16[xCoarse]^0x8000)*availY/65536;
-              }
-              xFine+=xAdvanceFine;
-              if (xFine>=16777216) {
-                xFine-=16777216;
-                totalAdvance++;
-              }
-              totalAdvance+=xAdvanceCoarse;
-              if (xCoarse>=sample->samples) break;
-              do {
-                if (sample->depth==8) {
-                  y2=((unsigned char)sample->data8[xCoarse]^0x80)*availY/256;
-                } else {
-                  y2=((unsigned short)sample->data16[xCoarse]^0x8000)*availY/65536;
-                }
-                if (y1>y2) {
-                  y2^=y1;
-                  y1^=y2;
-                  y2^=y1;
-                }
-                if (y1<0) y1=0;
-                if (y1>=availY) y1=availY-1;
-                if (y2<0) y2=0;
-                if (y2>=availY) y2=availY-1;
-                for (int j=y1; j<=y2; j++) {
-                  data[i+availX*(availY-j-1)]=lineColor;
-                }
-                if (totalAdvance>0) xCoarse++;
-              } while ((totalAdvance--)>0);
-            }
-            SDL_UnlockTexture(sampleTex);
-          }
-          updateSampleTex=false;
-        }
 
-        ImGui::ImageButton(sampleTex,avail,ImVec2(0,0),ImVec2(1,1),0);
+              updateSampleTex=true;
 
-        ImVec2 rectMin=ImGui::GetItemRectMin();
-        ImVec2 rectMax=ImGui::GetItemRectMax();
-        ImVec2 rectSize=ImGui::GetItemRectSize();
-
-        if (ImGui::IsItemClicked()) {
-          if (ImGui::IsMouseDoubleClicked(ImGuiMouseButton_Left)) {
-            sampleDragActive=false;
-            sampleSelStart=0;
-            sampleSelEnd=sample->samples;
-          } else {
-            if (sample->samples>0 && (sample->depth==16 || sample->depth==8)) {
-              sampleDragStart=rectMin;
-              sampleDragAreaSize=rectSize;
-              sampleDrag16=(sample->depth==16);
-              sampleDragTarget=(sample->depth==16)?((void*)sample->data16):((void*)sample->data8);
-              sampleDragLen=sample->samples;
-              sampleDragActive=true;
-              sampleSelStart=-1;
-              sampleSelEnd=-1;
-              if (sampleDragMode) sample->prepareUndo(true);
-              processDrags(ImGui::GetMousePos().x,ImGui::GetMousePos().y);
-            }
-          }
-        }
-
-        if (!sampleDragMode && ImGui::IsItemClicked(ImGuiMouseButton_Right)) {
-          ImGui::OpenPopup("SRightClick");
-        }
-
-        if (ImGui::BeginPopup("SRightClick",ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_AlwaysAutoResize)) {
-          if (ImGui::MenuItem("cut",BIND_FOR(GUI_ACTION_SAMPLE_CUT))) {
-            doAction(GUI_ACTION_SAMPLE_CUT);
-          }
-          if (ImGui::MenuItem("copy",BIND_FOR(GUI_ACTION_SAMPLE_COPY))) {
-            doAction(GUI_ACTION_SAMPLE_COPY);
-          }
-          if (ImGui::MenuItem("paste",BIND_FOR(GUI_ACTION_SAMPLE_PASTE))) {
-            doAction(GUI_ACTION_SAMPLE_PASTE);
-          }
-          if (ImGui::MenuItem("paste (replace)",BIND_FOR(GUI_ACTION_SAMPLE_PASTE_REPLACE))) {
-            doAction(GUI_ACTION_SAMPLE_PASTE_REPLACE);
-          }
-          if (ImGui::MenuItem("paste (mix)",BIND_FOR(GUI_ACTION_SAMPLE_PASTE_MIX))) {
-            doAction(GUI_ACTION_SAMPLE_PASTE_MIX);
-          }
-          if (ImGui::MenuItem("select all",BIND_FOR(GUI_ACTION_SAMPLE_SELECT_ALL))) {
-            doAction(GUI_ACTION_SAMPLE_SELECT_ALL);
+              e->renderSamples();
+            });
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
           }
           ImGui::EndPopup();
         }
-
-        String statusBar=sampleDragMode?"Draw":"Select";
-        bool drawSelection=false;
-
-        if (!sampleDragMode) {
-          if (sampleSelStart>=0 && sampleSelEnd>=0) {
-            int start=sampleSelStart;
-            int end=sampleSelEnd;
-            if (start>end) {
-              start^=end;
-              end^=start;
-              start^=end;
-            }
-            statusBar+=fmt::sprintf(" (%d-%d)",start,end);
-            drawSelection=true;
-          }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ARROWS_V "##SNormalize")) {
+          doAction(GUI_ACTION_SAMPLE_NORMALIZE);
         }
-
         if (ImGui::IsItemHovered()) {
-          int posX=-1;
-          int posY=0;
-          ImVec2 pos=ImGui::GetMousePos();
-          pos.x-=rectMin.x;
-          pos.y-=rectMin.y;
-
-          if (sampleZoom>0) {
-            posX=samplePos+pos.x*sampleZoom;
-            if (posX>(int)sample->samples) posX=-1;
-          }
-          posY=(0.5-pos.y/rectSize.y)*((sample->depth==8)?255:32767);
-          if (posX>=0) {
-            statusBar+=fmt::sprintf(" | (%d, %d)",posX,posY);
-          }
+          ImGui::SetTooltip("Normalize");
         }
-
-        if (drawSelection) {
-          int start=sampleSelStart;
-          int end=sampleSelEnd;
-          if (start>end) {
-            start^=end;
-            end^=start;
-            start^=end;
-          }
-          ImDrawList* dl=ImGui::GetWindowDrawList();
-          ImVec2 p1=rectMin;
-          p1.x+=(start-samplePos)/sampleZoom;
-
-          ImVec2 p2=ImVec2(rectMin.x+(end-samplePos)/sampleZoom,rectMax.y);
-          ImVec4 boundColor=uiColors[GUI_COLOR_ACCENT_PRIMARY];
-          ImVec4 selColor=uiColors[GUI_COLOR_ACCENT_SECONDARY];
-          boundColor.w*=0.5;
-          selColor.w*=0.25;
-
-          if (p1.x<rectMin.x) p1.x=rectMin.x;
-          if (p1.x>rectMax.x) p1.x=rectMax.x;
-
-          if (p2.x<rectMin.x) p2.x=rectMin.x;
-          if (p2.x>rectMax.x) p2.x=rectMax.x;
-
-          dl->AddRectFilled(p1,p2,ImGui::GetColorU32(selColor));
-          dl->AddLine(ImVec2(p1.x,p1.y),ImVec2(p1.x,p2.y),ImGui::GetColorU32(boundColor));
-          if (start!=end) {
-            dl->AddLine(ImVec2(p2.x,p1.y),ImVec2(p2.x,p2.y),ImGui::GetColorU32(boundColor));
-          }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ARROW_UP "##SFadeIn")) {
+          doAction(GUI_ACTION_SAMPLE_FADE_IN);
         }
-
-        ImS64 scrollV=samplePos;
-        ImS64 availV=round(rectSize.x*sampleZoom);
-        ImS64 contentsV=MAX(sample->samples,MAX(availV,1));
-
-        if (ImGui::ScrollbarEx(ImRect(ImVec2(rectMin.x,rectMax.y),ImVec2(rectMax.x,rectMax.y+ImGui::GetStyle().ScrollbarSize)),ImGui::GetID("sampleScroll"),ImGuiAxis_X,&scrollV,availV,contentsV,0)) {
-          if (!sampleZoomAuto && samplePos!=scrollV) {
-            samplePos=scrollV;
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Fade in");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ARROW_DOWN "##SFadeOut")) {
+          doAction(GUI_ACTION_SAMPLE_FADE_OUT);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Fade out");
+        }
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_ADJUST "##SInsertSilence");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Insert silence");
+        }
+        if (openSampleSilenceOpt) {
+          openSampleSilenceOpt=false;
+          ImGui::OpenPopup("SSilenceOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SSilenceOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          if (ImGui::InputInt("Samples",&silenceSize,1,64)) {
+            if (silenceSize<0) silenceSize=0;
+            if (silenceSize>16777215) silenceSize=16777215;
+          }
+          if (ImGui::Button("Resize")) {
+            int pos=(sampleSelStart==-1 || sampleSelStart==sampleSelEnd)?sample->samples:sampleSelStart;
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample,pos]() {
+              if (!sample->insert(pos,silenceSize)) {
+                showError("couldn't insert! make sure your sample is 8 or 16-bit.");
+              }
+              e->renderSamples();
+            });
             updateSampleTex=true;
+            sampleSelStart=pos;
+            sampleSelEnd=pos+silenceSize;
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
           }
+          ImGui::EndPopup();
         }
-
-        if (sample->depth!=8 && sample->depth!=16) {
-          statusBar="Non-8/16-bit samples cannot be edited without prior conversion.";
-        }
-
-        ImGui::EndDisabled();
-        
-        ImGui::SetCursorPosY(ImGui::GetCursorPosY()+ImGui::GetStyle().ScrollbarSize);
-        ImGui::Text("%s",statusBar.c_str());
-      }
-
-      /*
-      bool considerations=false;
-      ImGui::Text("notes:");
-      if (sample->loopStart>=0) {
-        considerations=true;
-        ImGui::Text("- sample won't loop on Neo Geo ADPCM-A and X1-010");
-        if (sample->loopStart&1) {
-          ImGui::Text("- sample loop start will be aligned to the nearest even sample on Amiga");
-        }
-        if (sample->loopStart>0) {
-          ImGui::Text("- sample loop start will be ignored on Neo Geo ADPCM-B");
-        }
-      }
-      if (sample->samples&1) {
-        considerations=true;
-        ImGui::Text("- sample length will be aligned to the nearest even sample on Amiga");
-      }
-      if (sample->samples&511) {
-        considerations=true;
-        ImGui::Text("- sample length will be aligned and padded to 512 sample units on Neo Geo ADPCM.");
-      }
-      if (sample->samples&4095) {
-        considerations=true;
-        ImGui::Text("- sample length will be aligned and padded to 4096 sample units on X1-010.");
-      }
-      if (sample->samples>65535) {
-        considerations=true;
-        ImGui::Text("- maximum sample length on Sega PCM and QSound is 65536 samples");
-      }
-      if (sample->samples>131071) {
-        considerations=true;
-        ImGui::Text("- maximum sample length on X1-010 is 131072 samples");
-      }
-      if (sample->samples>2097151) {
-        considerations=true;
-        ImGui::Text("- maximum sample length on Neo Geo ADPCM is 2097152 samples");
-      }
-      if (!considerations) {
-        ImGui::Text("- none");
-      }*/
-    }
-    else {
-      DivSample* sample=e->song.sample[curSample];
-      String sampleType="Invalid";
-      if (sample->depth<17) {
-        if (sampleDepths[sample->depth]!=NULL) {
-          sampleType=sampleDepths[sample->depth];
-        }
-      }
-      ImGui::Text("Name");
-      ImGui::SameLine();
-      ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-      if (ImGui::InputText("##SampleName",&sample->name)) {
-        MARK_MODIFIED;
-      }
-
-      if (ImGui::BeginTable("SampleProps",2,ImGuiTableFlags_SizingStretchSame)) {
-        ImGui::TableNextRow();
-        ImGui::TableNextColumn();
-        ImGui::Text("Type");
         ImGui::SameLine();
-        ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::BeginCombo("##SampleType",sampleType.c_str())) {
-          for (int i=0; i<17; i++) {
-            if (sampleDepths[i]==NULL) continue;
-            if (ImGui::Selectable(sampleDepths[i])) {
-              sample->prepareUndo(true);
-              sample->depth=i;
-              e->renderSamplesP();
-              updateSampleTex=true;
-              MARK_MODIFIED;
-            }
+        if (ImGui::Button(ICON_FA_ERASER "##SSilence")) {
+          doAction(GUI_ACTION_SAMPLE_SILENCE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Apply silence");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_TIMES "##SDelete")) {
+          doAction(GUI_ACTION_SAMPLE_DELETE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Delete");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_CROP "##STrim")) {
+          doAction(GUI_ACTION_SAMPLE_TRIM);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Trim");
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_BACKWARD "##SReverse")) {
+          doAction(GUI_ACTION_SAMPLE_REVERSE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Reverse");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_SORT_AMOUNT_ASC "##SInvert")) {
+          doAction(GUI_ACTION_SAMPLE_INVERT);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Invert");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_LEVEL_DOWN "##SSign")) {
+          doAction(GUI_ACTION_SAMPLE_SIGN);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Signed/unsigned exchange");
+        }
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_INDUSTRY "##SFilter");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Apply filter");
+        }
+        if (openSampleFilterOpt) {
+          openSampleFilterOpt=false;
+          ImGui::OpenPopup("SFilterOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SFilterOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          float lowP=sampleFilterL*100.0f;
+          float bandP=sampleFilterB*100.0f;
+          float highP=sampleFilterH*100.0f;
+          float resP=sampleFilterRes*100.0f;
+          ImGui::Text("Cutoff:");
+          if (ImGui::SliderFloat("From",&sampleFilterCutStart,0.0f,sample->rate*0.5,"%.0fHz")) {
+            if (sampleFilterCutStart<0.0) sampleFilterCutStart=0.0;
+            if (sampleFilterCutStart>sample->rate*0.5) sampleFilterCutStart=sample->rate*0.5;
           }
-          ImGui::EndCombo();
-        }
-
-        ImGui::TableNextColumn();
-        ImGui::Text("Rate (Hz)");
-        ImGui::SameLine();
-        ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::InputInt("##SampleRate",&sample->rate,10,200)) { MARK_MODIFIED
-          if (sample->rate<100) sample->rate=100;
-          if (sample->rate>96000) sample->rate=96000;
-        }
-
-        ImGui::TableNextRow();
-        ImGui::TableNextColumn();
-        ImGui::Text("C-4 (Hz)");
-        ImGui::SameLine();
-        ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::InputInt("##SampleCenter",&sample->centerRate,10,200)) { MARK_MODIFIED
-          if (sample->centerRate<100) sample->centerRate=100;
-          if (sample->centerRate>65535) sample->centerRate=65535;
-        }
-
-        ImGui::TableNextColumn();
-        bool doLoop=(sample->loopStart>=0);
-        if (ImGui::Checkbox("Loop",&doLoop)) { MARK_MODIFIED
-          if (doLoop) {
-            sample->loopStart=0;
-          } else {
-            sample->loopStart=-1;
+          if (ImGui::SliderFloat("To",&sampleFilterCutEnd,0.0f,sample->rate*0.5,"%.0fHz")) {
+            if (sampleFilterCutEnd<0.0) sampleFilterCutEnd=0.0;
+            if (sampleFilterCutEnd>sample->rate*0.5) sampleFilterCutEnd=sample->rate*0.5;
           }
-          updateSampleTex=true;
-        }
-        if (doLoop) {
+          ImGui::Separator();
+          if (ImGui::SliderFloat("Resonance",&resP,0.0f,99.0f,"%.1f%%")) {
+            sampleFilterRes=resP/100.0f;
+            if (sampleFilterRes<0.0f) sampleFilterRes=0.0f;
+            if (sampleFilterRes>0.99f) sampleFilterRes=0.99f;
+          }
+          ImGui::Text("Power");
           ImGui::SameLine();
-          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-          if (ImGui::InputInt("##LoopPosition",&sample->loopStart,1,10)) { MARK_MODIFIED
-            if (sample->loopStart<0 || sample->loopStart>=(int)sample->samples) {
-              sample->loopStart=0;
-            }
-            updateSampleTex=true;
+          if (ImGui::RadioButton("1x",sampleFilterPower==1)) {
+            sampleFilterPower=1;
+          }
+          ImGui::SameLine();
+          if (ImGui::RadioButton("2x",sampleFilterPower==2)) {
+            sampleFilterPower=2;
+          }
+          ImGui::SameLine();
+          if (ImGui::RadioButton("3x",sampleFilterPower==3)) {
+            sampleFilterPower=3;
+          }
+          ImGui::Separator();
+          if (ImGui::SliderFloat("Low-pass",&lowP,0.0f,100.0f,"%.1f%%")) {
+            sampleFilterL=lowP/100.0f;
+            if (sampleFilterL<0.0f) sampleFilterL=0.0f;
+            if (sampleFilterL>1.0f) sampleFilterL=1.0f;
+          }
+          if (ImGui::SliderFloat("Band-pass",&bandP,0.0f,100.0f,"%.1f%%")) {
+            sampleFilterB=bandP/100.0f;
+            if (sampleFilterB<0.0f) sampleFilterB=0.0f;
+            if (sampleFilterB>1.0f) sampleFilterB=1.0f;
+          }
+          if (ImGui::SliderFloat("High-pass",&highP,0.0f,100.0f,"%.1f%%")) {
+            sampleFilterH=highP/100.0f;
+            if (sampleFilterH<0.0f) sampleFilterH=0.0f;
+            if (sampleFilterH>1.0f) sampleFilterH=1.0f;
           }
-        }
-        ImGui::EndTable();
-      }
 
-      /*
-      if (ImGui::Button("Apply")) {
-        e->renderSamplesP();
-      }
-      ImGui::SameLine();
-      */
-      ImGui::Separator();
+          if (ImGui::Button("Apply")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              SAMPLE_OP_BEGIN;
+              float res=1.0-pow(sampleFilterRes,0.5f);
+              float low=0;
+              float band=0;
+              float high=0;
 
-      ImGui::BeginDisabled(sample->depth!=8 && sample->depth!=16);
+              double power=(sampleFilterCutStart>sampleFilterCutEnd)?0.5:2.0;
 
-      ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(!sampleDragMode));
-      if (ImGui::Button(ICON_FA_I_CURSOR "##SSelect")) {
-        sampleDragMode=false;
-      }
-      ImGui::PopStyleColor();
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Edit mode: Select");
-      }
-      ImGui::SameLine();
-      ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(sampleDragMode));
-      if (ImGui::Button(ICON_FA_PENCIL "##SDraw")) {
-        sampleDragMode=true;
-      }
-      ImGui::PopStyleColor();
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Edit mode: Draw");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(7.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_ARROWS_H "##SResize");
-      if (ImGui::IsItemClicked()) {
-        resizeSize=sample->samples;
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Resize");
-      }
-      if (openSampleResizeOpt) {
-        openSampleResizeOpt=false;
-        ImGui::OpenPopup("SResizeOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SResizeOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        if (ImGui::InputInt("Samples",&resizeSize,1,64)) {
-          if (resizeSize<0) resizeSize=0;
-          if (resizeSize>16777215) resizeSize=16777215;
-        }
-        if (ImGui::Button("Resize")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            if (!sample->resize(resizeSize)) {
-              showError("couldn't resize! make sure your sample is 8 or 16-bit.");
-            }
-            e->renderSamples();
-          });
-          updateSampleTex=true;
-          sampleSelStart=-1;
-          sampleSelEnd=-1;
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
-        }
-        ImGui::EndPopup();
-      } else {
-        resizeSize=sample->samples;
-      }
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_EXPAND "##SResample");
-      if (ImGui::IsItemClicked()) {
-        resampleTarget=sample->rate;
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Resample");
-      }
-      if (openSampleResampleOpt) {
-        openSampleResampleOpt=false;
-        ImGui::OpenPopup("SResampleOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SResampleOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        ImGui::Text("Rate");
-        if (ImGui::InputDouble("##SRRate",&resampleTarget,1.0,50.0,"%g")) {
-          if (resampleTarget<0) resampleTarget=0;
-          if (resampleTarget>96000) resampleTarget=96000;
-        }
-        ImGui::SameLine();
-        if (ImGui::Button("0.5x")) {
-          resampleTarget*=0.5;
-        }
-        ImGui::SameLine();
-        if (ImGui::Button("==")) {
-          resampleTarget=sample->rate;
-        }
-        ImGui::SameLine();
-        if (ImGui::Button("2.0x")) {
-          resampleTarget*=2.0;
-        }
-        double factor=resampleTarget/(double)sample->rate;
-        if (ImGui::InputDouble("Factor",&factor,0.125,0.5,"%g")) {
-          resampleTarget=(double)sample->rate*factor;
-          if (resampleTarget<0) resampleTarget=0;
-          if (resampleTarget>96000) resampleTarget=96000;
-        }
-        ImGui::Combo("Filter",&resampleStrat,resampleStrats,6);
-        if (ImGui::Button("Resample")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            if (!sample->resample(resampleTarget,resampleStrat)) {
-              showError("couldn't resample! make sure your sample is 8 or 16-bit.");
-            }
-            e->renderSamples();
-          });
-          updateSampleTex=true;
-          sampleSelStart=-1;
-          sampleSelEnd=-1;
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
-        }
-        ImGui::EndPopup();
-      } else {
-        resampleTarget=sample->rate;
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_INDUSTRY "##SFilter");
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Apply filter");
-      }
-      if (openSampleFilterOpt) {
-        openSampleFilterOpt=false;
-        ImGui::OpenPopup("SFilterOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SFilterOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        float lowP=sampleFilterL*100.0f;
-        float bandP=sampleFilterB*100.0f;
-        float highP=sampleFilterH*100.0f;
-        float resP=sampleFilterRes*100.0f;
-        ImGui::Text("Cutoff:");
-        if (ImGui::SliderFloat("From",&sampleFilterCutStart,0.0f,sample->rate*0.5,"%.0fHz")) {
-          if (sampleFilterCutStart<0.0) sampleFilterCutStart=0.0;
-          if (sampleFilterCutStart>sample->rate*0.5) sampleFilterCutStart=sample->rate*0.5;
-        }
-        if (ImGui::SliderFloat("To",&sampleFilterCutEnd,0.0f,sample->rate*0.5,"%.0fHz")) {
-          if (sampleFilterCutEnd<0.0) sampleFilterCutEnd=0.0;
-          if (sampleFilterCutEnd>sample->rate*0.5) sampleFilterCutEnd=sample->rate*0.5;
-        }
-        ImGui::Separator();
-        if (ImGui::SliderFloat("Resonance",&resP,0.0f,99.0f,"%.1f%%")) {
-          sampleFilterRes=resP/100.0f;
-          if (sampleFilterRes<0.0f) sampleFilterRes=0.0f;
-          if (sampleFilterRes>0.99f) sampleFilterRes=0.99f;
-        }
-        ImGui::Text("Power");
-        ImGui::SameLine();
-        if (ImGui::RadioButton("1x",sampleFilterPower==1)) {
-          sampleFilterPower=1;
-        }
-        ImGui::SameLine();
-        if (ImGui::RadioButton("2x",sampleFilterPower==2)) {
-          sampleFilterPower=2;
-        }
-        ImGui::SameLine();
-        if (ImGui::RadioButton("3x",sampleFilterPower==3)) {
-          sampleFilterPower=3;
-        }
-        ImGui::Separator();
-        if (ImGui::SliderFloat("Low-pass",&lowP,0.0f,100.0f,"%.1f%%")) {
-          sampleFilterL=lowP/100.0f;
-          if (sampleFilterL<0.0f) sampleFilterL=0.0f;
-          if (sampleFilterL>1.0f) sampleFilterL=1.0f;
-        }
-        if (ImGui::SliderFloat("Band-pass",&bandP,0.0f,100.0f,"%.1f%%")) {
-          sampleFilterB=bandP/100.0f;
-          if (sampleFilterB<0.0f) sampleFilterB=0.0f;
-          if (sampleFilterB>1.0f) sampleFilterB=1.0f;
-        }
-        if (ImGui::SliderFloat("High-pass",&highP,0.0f,100.0f,"%.1f%%")) {
-          sampleFilterH=highP/100.0f;
-          if (sampleFilterH<0.0f) sampleFilterH=0.0f;
-          if (sampleFilterH>1.0f) sampleFilterH=1.0f;
-        }
+              if (sample->depth==16) {
+                for (unsigned int i=start; i<end; i++) {
+                  double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
+                  double cut=sin((freq/double(sample->rate))*M_PI);
 
-        if (ImGui::Button("Apply")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            SAMPLE_OP_BEGIN;
-            float res=1.0-pow(sampleFilterRes,0.5f);
-            float low=0;
-            float band=0;
-            float high=0;
+                  for (int j=0; j<sampleFilterPower; j++) {
+                    low=low+cut*band;
+                    high=float(sample->data16[i])-low-(res*band);
+                    band=cut*high+band;
+                  }
 
-            double power=(sampleFilterCutStart>sampleFilterCutEnd)?0.5:2.0;
-
-            if (sample->depth==16) {
-              for (unsigned int i=start; i<end; i++) {
-                double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
-                double cut=sin((freq/double(sample->rate))*M_PI);
-
-                for (int j=0; j<sampleFilterPower; j++) {
-                  low=low+cut*band;
-                  high=float(sample->data16[i])-low-(res*band);
-                  band=cut*high+band;
+                  float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
+                  if (val<-32768) val=-32768;
+                  if (val>32767) val=32767;
+                  sample->data16[i]=val;
                 }
+              } else if (sample->depth==8) {
+                for (unsigned int i=start; i<end; i++) {
+                  double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
+                  double cut=sin((freq/double(sample->rate))*M_PI);
 
-                float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
-                if (val<-32768) val=-32768;
-                if (val>32767) val=32767;
-                sample->data16[i]=val;
-              }
-            } else if (sample->depth==8) {
-              for (unsigned int i=start; i<end; i++) {
-                double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
-                double cut=sin((freq/double(sample->rate))*M_PI);
+                  for (int j=0; j<sampleFilterPower; j++) {
+                    low=low+cut*band;
+                    high=float(sample->data8[i])-low-(res*band);
+                    band=cut*high+band;
+                  }
 
-                for (int j=0; j<sampleFilterPower; j++) {
-                  low=low+cut*band;
-                  high=float(sample->data8[i])-low-(res*band);
-                  band=cut*high+band;
+                  float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
+                  if (val<-128) val=-128;
+                  if (val>127) val=127;
+                  sample->data8[i]=val;
                 }
-
-                float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
-                if (val<-128) val=-128;
-                if (val>127) val=127;
-                sample->data8[i]=val;
               }
-            }
 
-            updateSampleTex=true;
+              updateSampleTex=true;
 
-            e->renderSamples();
-          });
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
-        }
-        ImGui::EndPopup();
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
-      ImGui::SameLine();
-
-
-      ImGui::Button(ICON_FA_VOLUME_UP "##SAmplify");
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Amplify");
-      }
-      if (openSampleAmplifyOpt) {
-        openSampleAmplifyOpt=false;
-        ImGui::OpenPopup("SAmplifyOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SAmplifyOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        ImGui::Text("Volume");
-        if (ImGui::InputFloat("##SRVolume",&amplifyVol,10.0,50.0,"%g%%")) {
-          if (amplifyVol<0) amplifyVol=0;
-          if (amplifyVol>10000) amplifyVol=10000;
+              e->renderSamples();
+            });
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
         }
         ImGui::SameLine();
-        ImGui::Text("(%.1fdB)",20.0*log10(amplifyVol/100.0f));
-        if (ImGui::Button("Apply")) {
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample]() {
-            SAMPLE_OP_BEGIN;
-            float vol=amplifyVol/100.0f;
-
-            if (sample->depth==16) {
-              for (unsigned int i=start; i<end; i++) {
-                float val=sample->data16[i]*vol;
-                if (val<-32768) val=-32768;
-                if (val>32767) val=32767;
-                sample->data16[i]=val;
-              }
-            } else if (sample->depth==8) {
-              for (unsigned int i=start; i<end; i++) {
-                float val=sample->data8[i]*vol;
-                if (val<-128) val=-128;
-                if (val>127) val=127;
-                sample->data8[i]=val;
-              }
-            }
-
-            updateSampleTex=true;
-
-            e->renderSamples();
-          });
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
+        ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_VOLUME_UP "##PreviewSample")) {
+          e->previewSample(curSample);
         }
-        ImGui::EndPopup();
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ARROWS_V "##SNormalize")) {
-        doAction(GUI_ACTION_SAMPLE_NORMALIZE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Normalize");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ARROW_UP "##SFadeIn")) {
-        doAction(GUI_ACTION_SAMPLE_FADE_IN);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Fade in");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ARROW_DOWN "##SFadeOut")) {
-        doAction(GUI_ACTION_SAMPLE_FADE_OUT);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Fade out");
-      }
-
-      if (ImGui::Button(ICON_FA_UNDO "##SUndo")) {
-        doUndoSample();
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Undo");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_REPEAT "##SRedo")) {
-        doRedoSample();
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Redo");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(7.0*dpiScale,dpiScale));
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_BACKWARD "##SReverse")) {
-        doAction(GUI_ACTION_SAMPLE_REVERSE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Reverse");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_SORT_AMOUNT_ASC "##SInvert")) {
-        doAction(GUI_ACTION_SAMPLE_INVERT);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Invert");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_LEVEL_DOWN "##SSign")) {
-        doAction(GUI_ACTION_SAMPLE_SIGN);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Signed/unsigned exchange");
-      }
-      ImGui::SameLine();
-      ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
-      ImGui::SameLine();
-      ImGui::Button(ICON_FA_ADJUST "##SInsertSilence");
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Insert silence");
-      }
-      if (openSampleSilenceOpt) {
-        openSampleSilenceOpt=false;
-        ImGui::OpenPopup("SSilenceOpt");
-      }
-      if (ImGui::BeginPopupContextItem("SSilenceOpt",ImGuiPopupFlags_MouseButtonLeft)) {
-        if (ImGui::InputInt("Samples",&silenceSize,1,64)) {
-          if (silenceSize<0) silenceSize=0;
-          if (silenceSize>16777215) silenceSize=16777215;
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Preview sample");
         }
-        if (ImGui::Button("Resize")) {
-          int pos=(sampleSelStart==-1 || sampleSelStart==sampleSelEnd)?sample->samples:sampleSelStart;
-          sample->prepareUndo(true);
-          e->lockEngine([this,sample,pos]() {
-            if (!sample->insert(pos,silenceSize)) {
-              showError("couldn't insert! make sure your sample is 8 or 16-bit.");
-            }
-            e->renderSamples();
-          });
-          updateSampleTex=true;
-          sampleSelStart=pos;
-          sampleSelEnd=pos+silenceSize;
-          MARK_MODIFIED;
-          ImGui::CloseCurrentPopup();
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_VOLUME_OFF "##StopSample")) {
+          e->stopSamplePreview();
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Stop sample preview");
         }
-        ImGui::EndPopup();
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_ERASER "##SSilence")) {
-        doAction(GUI_ACTION_SAMPLE_SILENCE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Apply silence");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_TIMES "##SDelete")) {
-        doAction(GUI_ACTION_SAMPLE_DELETE);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Delete");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_CROP "##STrim")) {
-        doAction(GUI_ACTION_SAMPLE_TRIM);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Trim");
-      }
 
-      if (ImGui::Button(ICON_FA_PLAY "##PreviewSample")) {
-        e->previewSample(curSample);
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Preview sample");
-      }
-      ImGui::SameLine();
-      if (ImGui::Button(ICON_FA_STOP "##StopSample")) {
-        e->stopSamplePreview();
-      }
-      if (ImGui::IsItemHovered()) {
-        ImGui::SetTooltip("Stop sample preview");
-      }
-      ImGui::SameLine();
-      double zoomPercent=100.0/sampleZoom;
-      ImGui::Text("Zoom");
-      ImGui::SameLine();
-      ImGui::SetNextItemWidth(150.0f*dpiScale);
-      if (ImGui::InputDouble("##SZoom",&zoomPercent,5.0,20.0,"%g%%")) {
-        if (zoomPercent>10000.0) zoomPercent=10000.0;
-        if (zoomPercent<1.0) zoomPercent=1.0;
-        sampleZoom=100.0/zoomPercent;
-        if (sampleZoom<0.01) sampleZoom=0.01;
-        sampleZoomAuto=false;
-        updateSampleTex=true;
-      }
-      ImGui::SameLine();
-      if (sampleZoomAuto) {
-        if (ImGui::Button("100%")) {
-          sampleZoom=1.0;
+        ImGui::SameLine();
+        double zoomPercent=100.0/sampleZoom;
+        ImGui::Text("Zoom");
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(150.0f*dpiScale);
+        if (ImGui::InputDouble("##SZoom",&zoomPercent,5.0,20.0,"%g%%")) {
+          if (zoomPercent>10000.0) zoomPercent=10000.0;
+          if (zoomPercent<1.0) zoomPercent=1.0;
+          sampleZoom=100.0/zoomPercent;
+          if (sampleZoom<0.01) sampleZoom=0.01;
           sampleZoomAuto=false;
           updateSampleTex=true;
         }
+        ImGui::SameLine();
+        if (sampleZoomAuto) {
+          if (ImGui::Button("100%")) {
+            sampleZoom=1.0;
+            sampleZoomAuto=false;
+            updateSampleTex=true;
+          }
+        } else {
+          if (ImGui::Button("Auto")) {
+            sampleZoomAuto=true;
+            updateSampleTex=true;
+          }
+        }
       } else {
-        if (ImGui::Button("Auto")) {
-          sampleZoomAuto=true;
+        ImGui::Text("Name");
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+        if (ImGui::InputText("##SampleName",&sample->name)) {
+          MARK_MODIFIED;
+        }
+
+        if (ImGui::BeginTable("SampleProps",2,ImGuiTableFlags_SizingStretchSame)) {
+          ImGui::TableNextRow();
+          ImGui::TableNextColumn();
+          ImGui::Text("Type");
+          ImGui::SameLine();
+          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+          if (ImGui::BeginCombo("##SampleType",sampleType.c_str())) {
+            for (int i=0; i<17; i++) {
+              if (sampleDepths[i]==NULL) continue;
+              if (ImGui::Selectable(sampleDepths[i])) {
+                sample->prepareUndo(true);
+                sample->depth=i;
+                e->renderSamplesP();
+                updateSampleTex=true;
+                MARK_MODIFIED;
+              }
+            }
+            ImGui::EndCombo();
+          }
+
+          ImGui::TableNextColumn();
+          ImGui::Text("Rate (Hz)");
+          ImGui::SameLine();
+          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+          if (ImGui::InputInt("##SampleRate",&sample->rate,10,200)) { MARK_MODIFIED
+            if (sample->rate<100) sample->rate=100;
+            if (sample->rate>96000) sample->rate=96000;
+          }
+
+          ImGui::TableNextRow();
+          ImGui::TableNextColumn();
+          ImGui::Text("C-4 (Hz)");
+          ImGui::SameLine();
+          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+          if (ImGui::InputInt("##SampleCenter",&sample->centerRate,10,200)) { MARK_MODIFIED
+            if (sample->centerRate<100) sample->centerRate=100;
+            if (sample->centerRate>65535) sample->centerRate=65535;
+          }
+
+          ImGui::TableNextColumn();
+          bool doLoop=(sample->loopStart>=0);
+          if (ImGui::Checkbox("Loop",&doLoop)) { MARK_MODIFIED
+            if (doLoop) {
+              sample->loopStart=0;
+            } else {
+              sample->loopStart=-1;
+            }
+            updateSampleTex=true;
+          }
+          if (doLoop) {
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+            if (ImGui::InputInt("##LoopPosition",&sample->loopStart,1,10)) { MARK_MODIFIED
+              if (sample->loopStart<0 || sample->loopStart>=(int)sample->samples) {
+                sample->loopStart=0;
+              }
+              updateSampleTex=true;
+            }
+          }
+          ImGui::EndTable();
+        }
+
+        /*
+        if (ImGui::Button("Apply")) {
+          e->renderSamplesP();
+        }
+        ImGui::SameLine();
+        */
+        ImGui::Separator();
+
+        ImGui::BeginDisabled(sample->depth!=8 && sample->depth!=16);
+
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(!sampleDragMode));
+        if (ImGui::Button(ICON_FA_I_CURSOR "##SSelect")) {
+          sampleDragMode=false;
+        }
+        ImGui::PopStyleColor();
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit mode: Select");
+        }
+        ImGui::SameLine();
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(sampleDragMode));
+        if (ImGui::Button(ICON_FA_PENCIL "##SDraw")) {
+          sampleDragMode=true;
+        }
+        ImGui::PopStyleColor();
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit mode: Draw");
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(7.0*dpiScale,dpiScale));
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_ARROWS_H "##SResize");
+        if (ImGui::IsItemClicked()) {
+          resizeSize=sample->samples;
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Resize");
+        }
+        if (openSampleResizeOpt) {
+          openSampleResizeOpt=false;
+          ImGui::OpenPopup("SResizeOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SResizeOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          if (ImGui::InputInt("Samples",&resizeSize,1,64)) {
+            if (resizeSize<0) resizeSize=0;
+            if (resizeSize>16777215) resizeSize=16777215;
+          }
+          if (ImGui::Button("Resize")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              if (!sample->resize(resizeSize)) {
+                showError("couldn't resize! make sure your sample is 8 or 16-bit.");
+              }
+              e->renderSamples();
+            });
+            updateSampleTex=true;
+            sampleSelStart=-1;
+            sampleSelEnd=-1;
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        } else {
+          resizeSize=sample->samples;
+        }
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_EXPAND "##SResample");
+        if (ImGui::IsItemClicked()) {
+          resampleTarget=sample->rate;
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Resample");
+        }
+        if (openSampleResampleOpt) {
+          openSampleResampleOpt=false;
+          ImGui::OpenPopup("SResampleOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SResampleOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          ImGui::Text("Rate");
+          if (ImGui::InputDouble("##SRRate",&resampleTarget,1.0,50.0,"%g")) {
+            if (resampleTarget<0) resampleTarget=0;
+            if (resampleTarget>96000) resampleTarget=96000;
+          }
+          ImGui::SameLine();
+          if (ImGui::Button("0.5x")) {
+            resampleTarget*=0.5;
+          }
+          ImGui::SameLine();
+          if (ImGui::Button("==")) {
+            resampleTarget=sample->rate;
+          }
+          ImGui::SameLine();
+          if (ImGui::Button("2.0x")) {
+            resampleTarget*=2.0;
+          }
+          double factor=resampleTarget/(double)sample->rate;
+          if (ImGui::InputDouble("Factor",&factor,0.125,0.5,"%g")) {
+            resampleTarget=(double)sample->rate*factor;
+            if (resampleTarget<0) resampleTarget=0;
+            if (resampleTarget>96000) resampleTarget=96000;
+          }
+          ImGui::Combo("Filter",&resampleStrat,resampleStrats,6);
+          if (ImGui::Button("Resample")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              if (!sample->resample(resampleTarget,resampleStrat)) {
+                showError("couldn't resample! make sure your sample is 8 or 16-bit.");
+              }
+              e->renderSamples();
+            });
+            updateSampleTex=true;
+            sampleSelStart=-1;
+            sampleSelEnd=-1;
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        } else {
+          resampleTarget=sample->rate;
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_INDUSTRY "##SFilter");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Apply filter");
+        }
+        if (openSampleFilterOpt) {
+          openSampleFilterOpt=false;
+          ImGui::OpenPopup("SFilterOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SFilterOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          float lowP=sampleFilterL*100.0f;
+          float bandP=sampleFilterB*100.0f;
+          float highP=sampleFilterH*100.0f;
+          float resP=sampleFilterRes*100.0f;
+          ImGui::Text("Cutoff:");
+          if (ImGui::SliderFloat("From",&sampleFilterCutStart,0.0f,sample->rate*0.5,"%.0fHz")) {
+            if (sampleFilterCutStart<0.0) sampleFilterCutStart=0.0;
+            if (sampleFilterCutStart>sample->rate*0.5) sampleFilterCutStart=sample->rate*0.5;
+          }
+          if (ImGui::SliderFloat("To",&sampleFilterCutEnd,0.0f,sample->rate*0.5,"%.0fHz")) {
+            if (sampleFilterCutEnd<0.0) sampleFilterCutEnd=0.0;
+            if (sampleFilterCutEnd>sample->rate*0.5) sampleFilterCutEnd=sample->rate*0.5;
+          }
+          ImGui::Separator();
+          if (ImGui::SliderFloat("Resonance",&resP,0.0f,99.0f,"%.1f%%")) {
+            sampleFilterRes=resP/100.0f;
+            if (sampleFilterRes<0.0f) sampleFilterRes=0.0f;
+            if (sampleFilterRes>0.99f) sampleFilterRes=0.99f;
+          }
+          ImGui::Text("Power");
+          ImGui::SameLine();
+          if (ImGui::RadioButton("1x",sampleFilterPower==1)) {
+            sampleFilterPower=1;
+          }
+          ImGui::SameLine();
+          if (ImGui::RadioButton("2x",sampleFilterPower==2)) {
+            sampleFilterPower=2;
+          }
+          ImGui::SameLine();
+          if (ImGui::RadioButton("3x",sampleFilterPower==3)) {
+            sampleFilterPower=3;
+          }
+          ImGui::Separator();
+          if (ImGui::SliderFloat("Low-pass",&lowP,0.0f,100.0f,"%.1f%%")) {
+            sampleFilterL=lowP/100.0f;
+            if (sampleFilterL<0.0f) sampleFilterL=0.0f;
+            if (sampleFilterL>1.0f) sampleFilterL=1.0f;
+          }
+          if (ImGui::SliderFloat("Band-pass",&bandP,0.0f,100.0f,"%.1f%%")) {
+            sampleFilterB=bandP/100.0f;
+            if (sampleFilterB<0.0f) sampleFilterB=0.0f;
+            if (sampleFilterB>1.0f) sampleFilterB=1.0f;
+          }
+          if (ImGui::SliderFloat("High-pass",&highP,0.0f,100.0f,"%.1f%%")) {
+            sampleFilterH=highP/100.0f;
+            if (sampleFilterH<0.0f) sampleFilterH=0.0f;
+            if (sampleFilterH>1.0f) sampleFilterH=1.0f;
+          }
+
+          if (ImGui::Button("Apply")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              SAMPLE_OP_BEGIN;
+              float res=1.0-pow(sampleFilterRes,0.5f);
+              float low=0;
+              float band=0;
+              float high=0;
+
+              double power=(sampleFilterCutStart>sampleFilterCutEnd)?0.5:2.0;
+
+              if (sample->depth==16) {
+                for (unsigned int i=start; i<end; i++) {
+                  double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
+                  double cut=sin((freq/double(sample->rate))*M_PI);
+
+                  for (int j=0; j<sampleFilterPower; j++) {
+                    low=low+cut*band;
+                    high=float(sample->data16[i])-low-(res*band);
+                    band=cut*high+band;
+                  }
+
+                  float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
+                  if (val<-32768) val=-32768;
+                  if (val>32767) val=32767;
+                  sample->data16[i]=val;
+                }
+              } else if (sample->depth==8) {
+                for (unsigned int i=start; i<end; i++) {
+                  double freq=sampleFilterCutStart+(sampleFilterCutEnd-sampleFilterCutStart)*pow(double(i-start)/double(end-start),power);
+                  double cut=sin((freq/double(sample->rate))*M_PI);
+
+                  for (int j=0; j<sampleFilterPower; j++) {
+                    low=low+cut*band;
+                    high=float(sample->data8[i])-low-(res*band);
+                    band=cut*high+band;
+                  }
+
+                  float val=low*sampleFilterL+band*sampleFilterB+high*sampleFilterH;
+                  if (val<-128) val=-128;
+                  if (val>127) val=127;
+                  sample->data8[i]=val;
+                }
+              }
+
+              updateSampleTex=true;
+
+              e->renderSamples();
+            });
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
+        ImGui::SameLine();
+
+
+        ImGui::Button(ICON_FA_VOLUME_UP "##SAmplify");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Amplify");
+        }
+        if (openSampleAmplifyOpt) {
+          openSampleAmplifyOpt=false;
+          ImGui::OpenPopup("SAmplifyOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SAmplifyOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          ImGui::Text("Volume");
+          if (ImGui::InputFloat("##SRVolume",&amplifyVol,10.0,50.0,"%g%%")) {
+            if (amplifyVol<0) amplifyVol=0;
+            if (amplifyVol>10000) amplifyVol=10000;
+          }
+          ImGui::SameLine();
+          ImGui::Text("(%.1fdB)",20.0*log10(amplifyVol/100.0f));
+          if (ImGui::Button("Apply")) {
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample]() {
+              SAMPLE_OP_BEGIN;
+              float vol=amplifyVol/100.0f;
+
+              if (sample->depth==16) {
+                for (unsigned int i=start; i<end; i++) {
+                  float val=sample->data16[i]*vol;
+                  if (val<-32768) val=-32768;
+                  if (val>32767) val=32767;
+                  sample->data16[i]=val;
+                }
+              } else if (sample->depth==8) {
+                for (unsigned int i=start; i<end; i++) {
+                  float val=sample->data8[i]*vol;
+                  if (val<-128) val=-128;
+                  if (val>127) val=127;
+                  sample->data8[i]=val;
+                }
+              }
+
+              updateSampleTex=true;
+
+              e->renderSamples();
+            });
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ARROWS_V "##SNormalize")) {
+          doAction(GUI_ACTION_SAMPLE_NORMALIZE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Normalize");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ARROW_UP "##SFadeIn")) {
+          doAction(GUI_ACTION_SAMPLE_FADE_IN);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Fade in");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ARROW_DOWN "##SFadeOut")) {
+          doAction(GUI_ACTION_SAMPLE_FADE_OUT);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Fade out");
+        }
+
+        if (ImGui::Button(ICON_FA_UNDO "##SUndo")) {
+          doUndoSample();
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Undo");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_REPEAT "##SRedo")) {
+          doRedoSample();
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Redo");
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(7.0*dpiScale,dpiScale));
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_BACKWARD "##SReverse")) {
+          doAction(GUI_ACTION_SAMPLE_REVERSE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Reverse");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_SORT_AMOUNT_ASC "##SInvert")) {
+          doAction(GUI_ACTION_SAMPLE_INVERT);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Invert");
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_LEVEL_DOWN "##SSign")) {
+          doAction(GUI_ACTION_SAMPLE_SIGN);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Signed/unsigned exchange");
+        }
+        ImGui::SameLine();
+        ImGui::Dummy(ImVec2(0.5*dpiScale,dpiScale));
+        ImGui::SameLine();
+        ImGui::Button(ICON_FA_ADJUST "##SInsertSilence");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Insert silence");
+        }
+        if (openSampleSilenceOpt) {
+          openSampleSilenceOpt=false;
+          ImGui::OpenPopup("SSilenceOpt");
+        }
+        if (ImGui::BeginPopupContextItem("SSilenceOpt",ImGuiPopupFlags_MouseButtonLeft)) {
+          if (ImGui::InputInt("Samples",&silenceSize,1,64)) {
+            if (silenceSize<0) silenceSize=0;
+            if (silenceSize>16777215) silenceSize=16777215;
+          }
+          if (ImGui::Button("Resize")) {
+            int pos=(sampleSelStart==-1 || sampleSelStart==sampleSelEnd)?sample->samples:sampleSelStart;
+            sample->prepareUndo(true);
+            e->lockEngine([this,sample,pos]() {
+              if (!sample->insert(pos,silenceSize)) {
+                showError("couldn't insert! make sure your sample is 8 or 16-bit.");
+              }
+              e->renderSamples();
+            });
+            updateSampleTex=true;
+            sampleSelStart=pos;
+            sampleSelEnd=pos+silenceSize;
+            MARK_MODIFIED;
+            ImGui::CloseCurrentPopup();
+          }
+          ImGui::EndPopup();
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_ERASER "##SSilence")) {
+          doAction(GUI_ACTION_SAMPLE_SILENCE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Apply silence");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_TIMES "##SDelete")) {
+          doAction(GUI_ACTION_SAMPLE_DELETE);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Delete");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_CROP "##STrim")) {
+          doAction(GUI_ACTION_SAMPLE_TRIM);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Trim");
+        }
+
+        if (ImGui::Button(ICON_FA_PLAY "##PreviewSample")) {
+          e->previewSample(curSample);
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Preview sample");
+        }
+        ImGui::SameLine();
+        if (ImGui::Button(ICON_FA_STOP "##StopSample")) {
+          e->stopSamplePreview();
+        }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Stop sample preview");
+        }
+        ImGui::SameLine();
+        double zoomPercent=100.0/sampleZoom;
+        ImGui::Text("Zoom");
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(150.0f*dpiScale);
+        if (ImGui::InputDouble("##SZoom",&zoomPercent,5.0,20.0,"%g%%")) {
+          if (zoomPercent>10000.0) zoomPercent=10000.0;
+          if (zoomPercent<1.0) zoomPercent=1.0;
+          sampleZoom=100.0/zoomPercent;
+          if (sampleZoom<0.01) sampleZoom=0.01;
+          sampleZoomAuto=false;
           updateSampleTex=true;
         }
+        ImGui::SameLine();
+        if (sampleZoomAuto) {
+          if (ImGui::Button("100%")) {
+            sampleZoom=1.0;
+            sampleZoomAuto=false;
+            updateSampleTex=true;
+          }
+        } else {
+          if (ImGui::Button("Auto")) {
+            sampleZoomAuto=true;
+            updateSampleTex=true;
+          }
+        }
       }
 
       ImGui::Separator();
 
       ImVec2 avail=ImGui::GetContentRegionAvail(); // graph size determined here
-      if (ImGui::GetContentRegionAvail().y > (ImGui::GetContentRegionAvail().x / 2.0f)) {
-        avail=ImVec2(ImGui::GetContentRegionAvail().x,ImGui::GetContentRegionAvail().x / 2.0f);
+      if (ImGui::GetContentRegionAvail().y>(ImGui::GetContentRegionAvail().x*0.5f)) {
+        avail=ImVec2(ImGui::GetContentRegionAvail().x,ImGui::GetContentRegionAvail().x*0.5f);
       }
       avail.y-=ImGui::GetFontSize()+ImGui::GetStyle().ItemSpacing.y+ImGui::GetStyle().ScrollbarSize;
-      if (avail.y < 1.0){ //Prevents crash
-        avail.y = 1.0;
+      if (avail.y<1.0) { // Prevents crash
+        avail.y=1.0;
       }
+
       int availX=avail.x;
       int availY=avail.y;
 
-
       if (sampleZoomAuto) {
         samplePos=0;
         if (sample->samples<1 || avail.x<=0) {