ObsidianDragon - DragonX ImGui Wallet

Full-node GUI wallet for DragonX cryptocurrency.
Built with Dear ImGui, SDL3, and OpenGL3/DX11.

Features:
- Send/receive shielded and transparent transactions
- Autoshield with merged transaction display
- Built-in CPU mining (xmrig)
- Peer management and network monitoring
- Wallet encryption with PIN lock
- QR code generation for receive addresses
- Transaction history with pagination
- Console for direct RPC commands
- Cross-platform (Linux, Windows)

src/util/texture_loader.h

@@ -0,0 +1,80 @@
+// DragonX Wallet - ImGui Edition
+// Copyright 2024-2026 The Hush Developers
+// Released under the GPLv3
+
+#pragma once
+
+#include "imgui.h"
+
+namespace dragonx {
+namespace util {
+
+/**
+ * @brief Load a PNG/JPG/BMP image from disk into an OpenGL or DX11 texture.
+ * @param path  File path (relative to working directory or absolute)
+ * @param outTexID  Receives the ImTextureID for ImGui rendering
+ * @param outW  Receives image width
+ * @param outH  Receives image height
+ * @return true on success
+ *
+ * The caller is responsible for destroying the texture.
+ * On OpenGL, cast outTexID to GLuint and call glDeleteTextures.
+ */
+bool LoadTextureFromFile(const char* path, ImTextureID* outTexID, int* outW, int* outH);
+
+/**
+ * @brief Load a PNG/JPG/BMP image from memory into an OpenGL or DX11 texture.
+ * @param data       Pointer to compressed image data (e.g. PNG bytes)
+ * @param dataSize   Size of the data in bytes
+ * @param outTexID   Receives the ImTextureID for ImGui rendering
+ * @param outW       Receives image width
+ * @param outH       Receives image height
+ * @return true on success
+ */
+bool LoadTextureFromMemory(const unsigned char* data, size_t dataSize,
+                           ImTextureID* outTexID, int* outW, int* outH);
+
+/**
+ * @brief Create a texture from raw RGBA pixel data (no decoding needed).
+ * @param pixels     Pointer to RGBA pixel data (4 bytes per pixel, caller-owned)
+ * @param w          Image width
+ * @param h          Image height
+ * @param repeat     If true, set wrap mode to GL_REPEAT (for tiling); else CLAMP_TO_EDGE
+ * @param outTexID   Receives the ImTextureID
+ * @return true on success
+ */
+bool CreateRawTexture(const unsigned char* pixels, int w, int h,
+                      bool repeat, ImTextureID* outTexID);
+
+/**
+ * @brief Load raw RGBA pixel data from a PNG/JPG/BMP file (no GPU texture).
+ * @param path     File path
+ * @param outW     Receives image width
+ * @param outH     Receives image height
+ * @return Pointer to RGBA pixels (caller must free with FreeRawPixels), or nullptr on failure
+ */
+unsigned char* LoadRawPixelsFromFile(const char* path, int* outW, int* outH);
+
+/**
+ * @brief Load raw RGBA pixel data from in-memory compressed image data (no GPU texture).
+ * @param data     Pointer to compressed image data (e.g. PNG bytes)
+ * @param dataSize Size of the data in bytes
+ * @param outW     Receives image width
+ * @param outH     Receives image height
+ * @return Pointer to RGBA pixels (caller must free with FreeRawPixels), or nullptr on failure
+ */
+unsigned char* LoadRawPixelsFromMemory(const unsigned char* data, size_t dataSize, int* outW, int* outH);
+
+/**
+ * @brief Free pixels returned by LoadRawPixelsFromFile / LoadRawPixelsFromMemory.
+ */
+void FreeRawPixels(unsigned char* pixels);
+
+/**
+ * @brief Destroy a GPU texture previously created by Load/CreateRaw functions.
+ * @param texID Texture handle (GLuint on OpenGL, ID3D11ShaderResourceView* on DX11)
+ */
+void DestroyTexture(ImTextureID texID);
+
+} // namespace util
+} // namespace dragonx