Minor fixes

lib/Epub/Epub/converters/PngToFramebufferConverter.cpp

@@ -502,6 +502,8 @@ bool PngToFramebufferConverter::decodeToFramebuffer(const std::string& imagePath
   // the 2-bit cache file format, but caching is disabled in this path
   // (BmpViewerActivity passes an empty cachePath).
   ctx.renderModeIsBW = (renderer.getRenderMode() == GfxRenderer::BW);
+  LOG_DBG("PNG", "Render mode at decode: %d (BW=%d) -> 1bit dither=%d", (int)renderer.getRenderMode(),
+          (int)GfxRenderer::BW, ctx.renderModeIsBW ? 1 : 0);
   if (ctx.renderModeIsBW) {
     ctx.atkinson1BitDitherer = new (std::nothrow) Atkinson1BitDitherer(ctx.dstWidth);
     if (!ctx.atkinson1BitDitherer) {

src/activities/boot_sleep/SleepActivity.cpp

@@ -9,6 +9,7 @@
 #include <Serialization.h>
 #include <Txt.h>
 #include <Xtc.h>
+#include <esp_system.h>
 
 #include <algorithm>
 #include <new>
@@ -22,6 +23,7 @@
 #include "fontIds.h"
 #include "images/Logo120.h"
 
+
 namespace {
 
 // Context passed through PNGdec's decode() user-pointer to the per-scanline draw callback.
@@ -216,9 +218,9 @@ size_t pickSleepImageIndex(size_t numFiles) {
     if (last == SIZE_MAX || last >= numFiles) return 0;
     return (last + 1) % numFiles;
   }
-  size_t idx = random(numFiles);
+  size_t idx = static_cast<size_t>(esp_random() % numFiles);
   while (numFiles > 1 && APP_STATE.lastSleepImage != SIZE_MAX && idx == APP_STATE.lastSleepImage) {
-    idx = random(numFiles);
+    idx = static_cast<size_t>(esp_random() % numFiles);
   }
   return idx;
 }