enhanced effects info for PNG snapshots

docs/index.html

@@ -1544,22 +1544,22 @@
       <td>Cmd + 4</td>
     </tr>
     <tr>
-      <td><i>Decrease</i> scanline intensity</td>
+      <td><i>Decrease</i> scanlines intensity</td>
       <td>Shift-Alt + 5</td>
       <td>Shift-Cmd + 5</td>
     </tr>
     <tr>
-      <td><i>Increase</i> scanline intensity</td>
+      <td><i>Increase</i> scanlines intensity</td>
       <td>Alt + 5</td>
       <td>Cmd + 5</td>
     </tr>
     <tr>
-      <td>Switch to <i>previous</i> scanline mask</td>
+      <td>Switch to <i>previous</i> scanlines mask</td>
       <td>Shift-Alt + 6</td>
       <td>Shift-Cmd + 6</td>
     </tr>
     <tr>
-      <td>Switch to <i>next</i> scanline mask</td>
+      <td>Switch to <i>next</i> scanlines mask</td>
       <td>Alt + 6</td>
       <td>Cmd + 6</td>
     </tr>
@@ -2970,13 +2970,13 @@
 
     <tr>
       <td><pre>-tv.scanlines &lt;0 - 100&gt;</pre></td>
-      <td>Set TV effects scanline intensity, where 0 means completely off.
+      <td>Set TV effects scanlines intensity, where 0 means completely off.
       </br>Note: No scanlines in 1x mode snapshots</td>
     </tr>
 
     <tr>
       <td><pre>-tv.scanmask &lt;standard|thin|pixel|aperture|mame&gt;</pre></td>
-      <td>Set the scanline mask.
+      <td>Set the scanlines mask.
       </br>Note: All masks (except 'standard') work better at higher zoom levels.</td>
     </tr>
 
@@ -3796,9 +3796,9 @@
           <tr><td>Phosphor for all ROMs</td><td>Enable phosphor mode for all ROMs</td><td>-tv.phosphor</td></tr>
           <tr><td>Blend (phosphor)</td><td>Blend level to use in phosphor mode for all ROMs
                 (needs to be manually adjusted for your particular hardware)</td><td>-tv.phosblend</td></tr>
-          <tr><td>Scanline intensity</td><td>Sets scanline black-level intensity.</br>
+          <tr><td>(Scanlines) Intensity</td><td>Sets scanlines black-level intensity.</br>
                   Note: No scanlines in 1x mode snapshots</td><td>-tv.scanlines</td></tr>
-          <tr><td>(Scanline) Mask</td><td>Sets the scanline mask.</br>
+          <tr><td>(Scanlines) Mask</td><td>Sets the scanlines mask.</br>
                   Note: All masks (except 'standard') work better at higher zoom levels</td><td>-tv.scanmask</td></tr>
           <tr><td>Clone RGB</td><td>Copy 'RGB' attributes to 'Custom' TV mode sliders</td><td>&nbsp;</td></tr>
           <tr><td>Clone S-Video</td><td>Copy 'S-Video' attributes to 'Custom' TV mode sliders</td><td>&nbsp;</td></tr>

src/common/PhosphorHandler.hxx

@@ -57,7 +57,7 @@ class PhosphorHandler
     bool myUsePhosphor{false};
 
     // Amount to blend when using phosphor effect
-    float myPhosphorPercent{0.60F};
+    float myPhosphorPercent{0.50F};
 
     // Precalculated averaged phosphor colors
     using PhosphorLUT = BSPF::array2D<uInt8, kColor, kColor>;

src/emucore/TIASurface.cxx

@@ -325,6 +325,7 @@ void TIASurface::enablePhosphor(bool enable, int blend)
 {
   if(myPhosphorHandler.initialize(enable, blend))
   {
+    myPBlend = blend;
     myFilter = Filter(enable ? uInt8(myFilter) | 0x01 : uInt8(myFilter) & 0x10);
     myRGBFramebuffer.fill(0);
   }
@@ -487,18 +488,21 @@ string TIASurface::effectsInfo() const
       buf << "Disabled, normal mode";
       break;
     case Filter::Phosphor:
-      buf << "Disabled, phosphor mode";
+      buf << "Disabled, phosphor=" << myPBlend;
       break;
     case Filter::BlarggNormal:
-      buf << myNTSCFilter.getPreset() << ", scanlines=" << attr.blendalpha;
+      buf << myNTSCFilter.getPreset();
       break;
     case Filter::BlarggPhosphor:
-      buf << myNTSCFilter.getPreset() << ", phosphor, scanlines=" << attr.blendalpha;
+      buf << myNTSCFilter.getPreset() << ", phosphor=" << myPBlend;
       break;
   }
-
+  if(attr.blendalpha)
+    buf << ", scanlines=" << attr.blendalpha
+      << "/" << myOSystem.settings().getString("tv.scanmask");
   buf << ", inter=" << (myOSystem.settings().getBool("tia.inter") ? "enabled" : "disabled");
   buf << ", aspect correction=" << (correctAspect() ? "enabled" : "disabled");
+  buf << ", palette=" << myOSystem.settings().getString("palette");
 
   return buf.str();
 }

src/emucore/TIASurface.hxx

@@ -243,6 +243,9 @@ class TIASurface
     // RGB frame buffer
     PhosphorHandler myPhosphorHandler;
 
+    // Phosphor blend
+    int myPBlend{0};
+
     std::array<uInt32, AtariNTSC::outWidth(TIAConstants::frameBufferWidth) *
         TIAConstants::frameBufferHeight> myRGBFramebuffer;
     std::array<uInt32, AtariNTSC::outWidth(TIAConstants::frameBufferWidth) *