From 812b2234410aa2ad6ae32a4b7a65e9363eaf3abe Mon Sep 17 00:00:00 2001
From: FergusL <Simon-L@users.noreply.github.com>
Date: Mon, 17 Mar 2025 01:39:14 +0100
Subject: [PATCH] Add update() to NanoImage

---
 dgl/NanoVG.hpp     | 1 +
 dgl/src/NanoVG.cpp | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/dgl/NanoVG.hpp b/dgl/NanoVG.hpp
index a1fab235..a8efefd1 100644
--- a/dgl/NanoVG.hpp
+++ b/dgl/NanoVG.hpp
@@ -107,6 +107,7 @@ public:
     */
     Size<uint> getSize() const noexcept;
 
+    void update(const unsigned char* data);
    /**
       Get the OpenGL texture handle.
     */
diff --git a/dgl/src/NanoVG.cpp b/dgl/src/NanoVG.cpp
index 80e3f349..4eec2a4b 100644
--- a/dgl/src/NanoVG.cpp
+++ b/dgl/src/NanoVG.cpp
@@ -272,6 +272,14 @@ Size<uint> NanoImage::getSize() const noexcept
     return fSize;
 }
 
+void NanoImage::update(const unsigned char* data)
+{
+    int w, h;
+    void * uptr = nvgInternalParams(fHandle.context)->userPtr;
+    glnvg__renderGetTextureSize(uptr, getTextureHandle(), &w, &h);
+    glnvg__renderUpdateTexture(uptr, getTextureHandle(), 0, 0, w, h, data);
+}
+
 GLuint NanoImage::getTextureHandle() const
 {
     DISTRHO_SAFE_ASSERT_RETURN(fHandle.context != nullptr && fHandle.imageId != 0, 0);