From 4341d368854342965869132ad9b80539c682bc1e Mon Sep 17 00:00:00 2001
From: Frank <91616163+softhack007@users.noreply.github.com>
Date: Thu, 4 May 2023 17:09:43 +0200
Subject: [PATCH] move main JSON doc into PSRAM (experimental)

this should move the main JSON doc into PSRAM on WROVER boards.
* free heap should increase by ~60kb
* PSRAM use should go up by the same amount.
---
 wled00/wled.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/wled00/wled.h b/wled00/wled.h
index 03492ab9..fc835252 100644
--- a/wled00/wled.h
+++ b/wled00/wled.h
@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2305030
+#define VERSION 2305040 // May-the-4th be with you ;-)
 
 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@@ -733,8 +733,19 @@ WLED_GLOBAL int8_t spi_sclk  _INIT(-1);
 WLED_GLOBAL int8_t spi_sclk  _INIT(HW_PIN_CLOCKSPI);
 #endif
 
+#if defined(BOARD_HAS_PSRAM) && (defined(WLED_USE_PSRAM_JSON) || defined(WLED_USE_PSRAM))
+// put the main JSON "doc" into PSRAM
+#ifndef WLED_DEFINE_GLOBAL_VARS
+extern PSRAMDynamicJsonDocument doc;
+#else
+PSRAMDynamicJsonDocument doc(JSON_BUFFER_SIZE); // call constructor - fingers crossed that PSRAM is already initialized at this point ...
+#endif
+
+#else // standard: use global (.bss) RAM
 // global ArduinoJson buffer
 WLED_GLOBAL StaticJsonDocument<JSON_BUFFER_SIZE> doc;
+#endif
+
 WLED_GLOBAL volatile uint8_t jsonBufferLock _INIT(0);
 
 // enable additional debug output