From ae8bb5a01fb00fb837e1187a47f74e12729c94bb Mon Sep 17 00:00:00 2001
From: Thomas Peterson <info@thomas-peterson.de>
Date: Sun, 1 Feb 2026 21:48:36 +0100
Subject: [PATCH] Fixes

---
 ...taticFileHandlers.cpp.7B27CFEA2E9C1EF7.idx | Bin 2908 -> 3010 bytes
 main/SdCard.cpp                               |   2 +-
 main/WidgetManager.cpp                        |  53 ++++++++++++------
 main/main.cpp                                 |  13 ++++-
 sdkconfig                                     |   6 +-
 web-interface/src/components/FileManager.vue  |   2 +-
 6 files changed, 53 insertions(+), 23 deletions(-)

diff --git a/.cache/clangd/index/StaticFileHandlers.cpp.7B27CFEA2E9C1EF7.idx b/.cache/clangd/index/StaticFileHandlers.cpp.7B27CFEA2E9C1EF7.idx
index 82e55c44e16a476be7b0b5541c39db4e54a50cfa..22f08191aaad540ec5ea3569fd1b731a36322786 100644
GIT binary patch
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diff --git a/main/SdCard.cpp b/main/SdCard.cpp
index 05e0f27..5876681 100644
--- a/main/SdCard.cpp
+++ b/main/SdCard.cpp
@@ -37,7 +37,7 @@ bool SdCard::init() {
 
     // Configure SDMMC host
     sdmmc_host_t host = SDMMC_HOST_DEFAULT();
-    host.max_freq_khz = SDMMC_FREQ_DEFAULT; // 20 MHz
+    host.max_freq_khz = SDMMC_FREQ_HIGHSPEED; // 40 MHz (faster image loading)
 
     // Initialize SD card power control via internal LDO
     sd_pwr_ctrl_ldo_config_t ldo_config = {
diff --git a/main/WidgetManager.cpp b/main/WidgetManager.cpp
index cb7ce5a..c01a23a 100644
--- a/main/WidgetManager.cpp
+++ b/main/WidgetManager.cpp
@@ -792,24 +792,43 @@ void WidgetManager::createAllWidgets(const ScreenConfig& screen, lv_obj_t* paren
         lv_obj_t* bgImg = lv_image_create(parent);
         lv_image_set_src(bgImg, fullPath);
 
-        // Position at top-left
-        lv_obj_set_pos(bgImg, 0, 0);
+        // Get image dimensions
+        lv_image_header_t header;
+        lv_result_t res = lv_image_decoder_get_info(fullPath, &header);
 
-        // Apply scaling mode
-        switch (screen.bgImageMode) {
-            case BgImageMode::STRETCH:
-                lv_obj_set_size(bgImg, lv_pct(100), lv_pct(100));
-                lv_image_set_inner_align(bgImg, LV_IMAGE_ALIGN_STRETCH);
-                break;
-            case BgImageMode::CENTER:
-                lv_obj_center(bgImg);
-                break;
-            case BgImageMode::TILE:
-                lv_image_set_inner_align(bgImg, LV_IMAGE_ALIGN_TILE);
-                lv_obj_set_size(bgImg, lv_pct(100), lv_pct(100));
-                break;
-            default:
-                break;
+        if (res == LV_RESULT_OK && header.w > 0 && header.h > 0) {
+            ESP_LOGI(TAG, "Image size: %dx%d", header.w, header.h);
+
+            // Get display/canvas size
+            int32_t dispW = lv_obj_get_width(parent);
+            int32_t dispH = lv_obj_get_height(parent);
+            if (dispW <= 0) dispW = LV_HOR_RES;
+            if (dispH <= 0) dispH = LV_VER_RES;
+
+            switch (screen.bgImageMode) {
+                case BgImageMode::STRETCH: {
+                    // Calculate scale to fill display (in 1/256 units for LVGL)
+                    int32_t scaleX = (dispW * 256) / header.w;
+                    int32_t scaleY = (dispH * 256) / header.h;
+                    lv_image_set_scale_x(bgImg, scaleX);
+                    lv_image_set_scale_y(bgImg, scaleY);
+                    lv_obj_set_pos(bgImg, 0, 0);
+                    ESP_LOGI(TAG, "Stretch scale: %ldx%ld", scaleX, scaleY);
+                    break;
+                }
+                case BgImageMode::CENTER:
+                    lv_obj_center(bgImg);
+                    break;
+                case BgImageMode::TILE:
+                    lv_image_set_inner_align(bgImg, LV_IMAGE_ALIGN_TILE);
+                    lv_obj_set_size(bgImg, lv_pct(100), lv_pct(100));
+                    break;
+                default:
+                    break;
+            }
+        } else {
+            ESP_LOGW(TAG, "Could not get image info, using default position");
+            lv_obj_set_pos(bgImg, 0, 0);
         }
 
         // Send to background (behind all widgets)
diff --git a/main/main.cpp b/main/main.cpp
index 3c1aee6..9a00599 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -3,6 +3,7 @@
 #include "freertos/task.h"
 #include "esp_log.h"
 #include "esp_lv_adapter.h"
+#include "esp_lv_decoder.h"
 #include "lvgl.h"
 #include "Display.hpp"
 #include "Touch.hpp"
@@ -84,7 +85,17 @@ public:
         if (!SdCard::instance().init()) {
             ESP_LOGW(TAG, "SD card not available, using defaults");
         }
-        
+
+        // Initialize hardware JPEG/PNG decoder for LVGL (uses ESP32-P4 hardware acceleration)
+        ESP_LOGI(TAG, "INIT IMAGE DECODER");
+        esp_lv_decoder_handle_t decoder_handle = NULL;
+        esp_err_t dec_err = esp_lv_decoder_init(&decoder_handle);
+        if (dec_err != ESP_OK) {
+            ESP_LOGW(TAG, "Failed to init image decoder: %s", esp_err_to_name(dec_err));
+        } else {
+            ESP_LOGI(TAG, "Hardware image decoder initialized");
+        }
+
         ESP_LOGI(TAG, "START KNX");
         BaseType_t knx_ok = xTaskCreatePinnedToCore(
             knx_task, "knx", 4096, &Gui::knxWorker, 5, nullptr, 1);
diff --git a/sdkconfig b/sdkconfig
index bfb155c..b664f67 100644
--- a/sdkconfig
+++ b/sdkconfig
@@ -2979,8 +2979,8 @@ CONFIG_LV_ASSERT_HANDLER_INCLUDE="assert.h"
 # Others
 #
 # CONFIG_LV_ENABLE_GLOBAL_CUSTOM is not set
-CONFIG_LV_CACHE_DEF_SIZE=0
-CONFIG_LV_IMAGE_HEADER_CACHE_DEF_CNT=0
+CONFIG_LV_CACHE_DEF_SIZE=4194304
+CONFIG_LV_IMAGE_HEADER_CACHE_DEF_CNT=8
 CONFIG_LV_GRADIENT_MAX_STOPS=2
 CONFIG_LV_COLOR_MIX_ROUND_OFS=128
 # CONFIG_LV_OBJ_STYLE_CACHE is not set
@@ -3184,7 +3184,7 @@ CONFIG_LV_FS_POSIX_CACHE_SIZE=0
 # CONFIG_LV_USE_LODEPNG is not set
 # CONFIG_LV_USE_LIBPNG is not set
 # CONFIG_LV_USE_BMP is not set
-CONFIG_LV_USE_TJPGD=y
+# CONFIG_LV_USE_TJPGD is not set
 # CONFIG_LV_USE_LIBJPEG_TURBO is not set
 # CONFIG_LV_USE_GIF is not set
 # CONFIG_LV_BIN_DECODER_RAM_LOAD is not set
diff --git a/web-interface/src/components/FileManager.vue b/web-interface/src/components/FileManager.vue
index f3ae236..e50b4b9 100644
--- a/web-interface/src/components/FileManager.vue
+++ b/web-interface/src/components/FileManager.vue
@@ -219,7 +219,7 @@ const imageExtensions = ['png', 'jpg', 'jpeg', 'gif', 'bmp', 'webp', 'svg'];
 // Image optimization settings for ESP32
 const MAX_IMAGE_WIDTH = 1280;   // Display width
 const MAX_IMAGE_HEIGHT = 800;   // Display height
-const JPEG_QUALITY = 0.75;      // 75% quality
+const JPEG_QUALITY = 0.80;      // 80% quality - good balance
 
 function isImageFile(name) {
   const ext = name.split('.').pop().toLowerCase();