Fix Tab5 Display Issues (#579)

And add PPA rotation to lvgl_display

Modules/lvgl-module/include/tactility/lvgl_ppa.h

@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <lvgl.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// True on targets with a PPA (Pixel Processing Accelerator) unit that lvgl_ppa can use to
+// hardware-rotate rotated flush tiles instead of lv_draw_sw_rotate(). False (always) on the
+// simulator and on ESP32 targets without a PPA (see SOC_PPA_SUPPORTED).
+bool lvgl_ppa_is_supported(void);
+
+// True when color_format has a PPA color mode this module supports (RGB565/RGB888 - see
+// lvgl_ppa_color_mode()). LV_COLOR_FORMAT_I1 and others fall back to lv_draw_sw_rotate().
+bool lvgl_ppa_supports_color_format(lv_color_format_t color_format);
+
+// Lazily creates (on first call) a PPA client and an output buffer at least out_buffer_size_bytes
+// large, big enough for the largest tile this display will ever rotate. Returns NULL on failure -
+// callers should fall back to lv_draw_sw_rotate() when that happens. Not thread-safe; callers must
+// already hold the LVGL lock (true for all flush_cb callers).
+void* lvgl_ppa_get_or_create(size_t out_buffer_size_bytes);
+
+void lvgl_ppa_delete(void* ppa_handle);
+
+// Rotates the tightly-packed w x h block at in_buff by rotation (LV_DISPLAY_ROTATION_90/180/270 -
+// numerically identical to ppa_srm_rotation_angle_t's CCW convention, see the .c file) into the
+// PPA's own output buffer and returns it. in_buff must have no row padding (PPA reads pic_w/pic_h
+// in pixels, not a byte stride) - true for every lvgl_display_flush_cb() tile, which LVGL always
+// renders compact. Returns NULL on failure - caller should fall back to lv_draw_sw_rotate().
+void* lvgl_ppa_rotate(
+    void* ppa_handle,
+    const uint8_t* in_buff,
+    int32_t w,
+    int32_t h,
+    lv_display_rotation_t rotation,
+    lv_color_format_t color_format,
+    bool swap_bytes
+);
+
+#ifdef __cplusplus
+}
+#endif