GUI: define sample edit texture

src/gui/gui.cpp

@@ -6952,6 +6952,10 @@ bool FurnaceGUI::finish() {
 
 FurnaceGUI::FurnaceGUI():
   e(NULL),
+  sampleTex(NULL),
+  sampleTexW(0),
+  sampleTexH(0),
+  updateSampleTex(true),
   quit(false),
   warnQuit(false),
   willCommit(false),

src/gui/gui.h

@@ -466,6 +466,10 @@ class FurnaceGUI {
   SDL_Window* sdlWin;
   SDL_Renderer* sdlRend;
 
+  SDL_Texture* sampleTex;
+  int sampleTexW, sampleTexH;
+  bool updateSampleTex;
+
   String workingDir, fileName, clipboard, warnString, errorString, lastError, curFileName, nextFile;
   String workingDirSong, workingDirIns, workingDirWave, workingDirSample, workingDirAudioExport, workingDirVGMExport, workingDirFont;
   String mmlString[13];

src/gui/sampleEdit.cpp

@@ -17,9 +17,13 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 #include "gui.h"
+#include "../ta-log.h"
 #include "IconsFontAwesome4.h"
 #include "misc/cpp/imgui_stdlib.h"
 #include "guiConst.h"
+#include <SDL_error.h>
+#include <SDL_pixels.h>
+#include <SDL_render.h>
 #include <imgui.h>
 
 void FurnaceGUI::drawSampleEdit() {
@@ -40,7 +44,13 @@ void FurnaceGUI::drawSampleEdit() {
           sampleType=sampleDepths[sample->depth];
         }
       }
-      ImGui::InputText("Name",&sample->name);
+      ImGui::Text("Name");
+      ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+      ImGui::InputText("##SampleName",&sample->name);
+
+      if (ImGui::BeginTable("SampleProps",4,ImGuiTableFlags_SizingStretchSame)) {
+        ImGui::TableNextRow();
+        ImGui::TableNextColumn();
         if (ImGui::BeginCombo("Type",sampleType.c_str())) {
           for (int i=0; i<17; i++) {
             if (sampleDepths[i]==NULL) continue;
@@ -54,15 +64,20 @@ void FurnaceGUI::drawSampleEdit() {
           }
           ImGui::EndCombo();
         }
+
+        ImGui::TableNextColumn();
         if (ImGui::InputInt("Rate (Hz)",&sample->rate,10,200)) {
           if (sample->rate<100) sample->rate=100;
           if (sample->rate>96000) sample->rate=96000;
         }
+
+        ImGui::TableNextColumn();
         if (ImGui::InputInt("Pitch of C-4 (Hz)",&sample->centerRate,10,200)) {
           if (sample->centerRate<100) sample->centerRate=100;
           if (sample->centerRate>65535) sample->centerRate=65535;
         }
-      ImGui::Text("effective rate: %dHz",e->getEffectiveSampleRate(sample->rate));
+
+        ImGui::TableNextColumn();
         bool doLoop=(sample->loopStart>=0);
         if (ImGui::Checkbox("Loop",&doLoop)) {
           if (doLoop) {
@@ -79,6 +94,10 @@ void FurnaceGUI::drawSampleEdit() {
             }
           }
         }
+        ImGui::EndTable();
+      }
+
+      /*
       if (ImGui::Button("Apply")) {
         e->renderSamplesP();
       }
@@ -89,8 +108,54 @@ void FurnaceGUI::drawSampleEdit() {
       ImGui::SameLine();
       if (ImGui::Button(ICON_FA_VOLUME_OFF "##StopSample")) {
         e->stopSamplePreview();
-      }
+      }*/
       ImGui::Separator();
+
+      ImVec2 avail=ImGui::GetContentRegionAvail();
+      //int availX=avail.x;
+      int availY=avail.y;
+
+      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.\n");
+          sampleTex=SDL_CreateTexture(sdlRend,SDL_PIXELFORMAT_ARGB8888,SDL_TEXTUREACCESS_STREAMING,avail.x,avail.y);
+          sampleTexW=avail.x;
+          sampleTexH=avail.y;
+          if (sampleTex==NULL) {
+            logE("error while creating sample texture! %s\n",SDL_GetError());
+          } else {
+            updateSampleTex=true;
+          }
+        }
+      }
+
+      if (sampleTex!=NULL) {
+        if (updateSampleTex) {
+          unsigned char* data=NULL;
+          int pitch=0;
+          logD("updating sample texture.\n");
+          if (SDL_LockTexture(sampleTex,NULL,(void**)&data,&pitch)!=0) {
+            logE("error while locking sample texture! %s\n",SDL_GetError());
+          } else {
+            for (int i=0; i<pitch*availY; i+=4) {
+              data[i]=255;
+              data[i+1]=255;
+              data[i+2]=255;
+              data[i+3]=255;
+            }
+            SDL_UnlockTexture(sampleTex);
+          }
+          updateSampleTex=false;
+        }
+
+        ImGui::Image(sampleTex,avail);
+      }
+
+      /*
       bool considerations=false;
       ImGui::Text("notes:");
       if (sample->loopStart>=0) {
@@ -129,7 +194,7 @@ void FurnaceGUI::drawSampleEdit() {
       }
       if (!considerations) {
         ImGui::Text("- none");
-      }
+      }*/
     }
   }
   if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_SAMPLE_EDIT;