From 383f02ee2b01b6cd6fdc7812bff6d9e5f036081f Mon Sep 17 00:00:00 2001
From: falkTX <falktx@falktx.com>
Date: Thu, 4 Nov 2021 23:58:43 +0000
Subject: [PATCH] Filter out VCV logo from Core files at runtime

---
 src/Makefile             |   3 ++
 src/Makefile.cardinal.mk |   2 +-
 src/override/dep.cpp     | 104 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 108 insertions(+), 1 deletion(-)

diff --git a/src/Makefile b/src/Makefile
index 1dd43ff..3fce996 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -68,6 +68,9 @@ BUILD_C_FLAGS += -std=gnu11
 BUILD_C_FLAGS += -fno-finite-math-only
 BUILD_CXX_FLAGS += -fno-finite-math-only
 
+# use our custom function to filter out VCV trademarks
+BUILD_CXX_FLAGS += -DnsvgParseFromFile=nsvgParseFromFileCardinal
+
 # --------------------------------------------------------------
 # Rack files to build
 
diff --git a/src/Makefile.cardinal.mk b/src/Makefile.cardinal.mk
index a42e0dd..1302ec9 100644
--- a/src/Makefile.cardinal.mk
+++ b/src/Makefile.cardinal.mk
@@ -170,7 +170,7 @@ all: jack lv2 vst2 vst3 resources
 
 ifeq ($(NAME),Cardinal)
 
-CORE_RESOURCES = $(subst ../Rack/res/,,$(wildcard ../Rack/res/*)) template.vcv
+CORE_RESOURCES = $(filter-out icon.png,$(subst ../Rack/res/,,$(wildcard ../Rack/res/*))) template.vcv
 
 PLUGIN_RESOURCES += $(CORE_RESOURCES:%=$(TARGET_DIR)/Cardinal.lv2/resources/%)
 ifeq ($(MACOS),true)
diff --git a/src/override/dep.cpp b/src/override/dep.cpp
index 8fd9e03..3dac141 100644
--- a/src/override/dep.cpp
+++ b/src/override/dep.cpp
@@ -16,6 +16,7 @@
  */
 
 #include <cstdio>
+#include <cstring>
 
 // fix blendish build, missing symbol in debug mode
 #ifdef DEBUG
@@ -39,4 +40,107 @@ float FollowerBase::efGainMaxDecibelsDebug = 12.0f;
 // Compile those nice implementation-in-header little libraries
 #define NANOSVG_IMPLEMENTATION
 #define NANOSVG_ALL_COLOR_KEYWORDS
+#undef nsvgParseFromFile
 #include <nanosvg.h>
+
+// Custom Cardinal filtering
+static const struct {
+    const char* filename;
+    const char* shapes[4];
+} pathsToFilterOut[] = {
+    {
+        "Core/AudioInterface.svg",
+        {"path39377","path39381","path39383","path39379"}
+    },
+    {
+        "Core/AudioInterface2.svg",
+        {"path18733","path18737","path18731","path18735"}
+    },
+    {
+        "Core/AudioInterface16.svg",
+        {"path40283","path40287","path40289","path40285"}
+    },
+    {
+        "Core/CV-CC.svg",
+        {"path12881","path12885","path12887","path12883"}
+    },
+    {
+        "Core/CV-Gate.svg",
+        {"path13127","path13131","path13133","path13129"}
+    },
+    {
+        "Core/CV-MIDI.svg",
+        {"path12747","path12751","path12753","path12749"}
+    },
+    {
+        "Core/MIDI-CC.svg",
+        {"path9740","path9744","path9746","path9742"}
+    },
+    {
+        "Core/MIDI-CV.svg",
+        {"path11803","path11807","path11809","path11805"}
+    },
+    {
+        "Core/MIDI-Gate.svg",
+        {"path11634","path11638","path11640","path11636"}
+    },
+    {
+        "Core/MIDI-Map.svg",
+        {"path21209","path21213","path21215","path21211"}
+    },
+    {
+        "Core/Notes.svg",
+        {"path6935","path6939","path6941","path6937"}
+    },
+};
+
+static void removeShape(NSVGimage* const handle, const char* const id)
+{
+	for (NSVGshape *shape = handle->shapes, *old = nullptr; shape; old = shape, shape = shape->next)
+	{
+		if (strcmp(shape->id, id) != 0)
+			continue;
+
+		if (old != nullptr)
+			old->next = shape->next;
+		else
+			handle->shapes = shape->next;
+
+		nsvg__deletePaths(shape->paths);
+		free(shape);
+		break;
+	}
+}
+
+extern "C" {
+NSVGimage* nsvgParseFromFileCardinal(const char* filename, const char* units, float dpi);
+}
+
+NSVGimage* nsvgParseFromFileCardinal(const char* const filename, const char* const units, const float dpi)
+{
+    if (NSVGimage* const handle = nsvgParseFromFile(filename, units, dpi))
+    {
+        for (size_t i = 0; i < sizeof(pathsToFilterOut)/sizeof(pathsToFilterOut[0]); ++i)
+        {
+            const char* const pathToFilterOut = pathsToFilterOut[i].filename;
+            const size_t filenamelen = std::strlen(filename);
+            const size_t filterlen = std::strlen(pathToFilterOut);
+
+            if (filenamelen < filterlen)
+                continue;
+
+            if (std::strncmp(filename + (filenamelen-filterlen), pathToFilterOut, filterlen) == 0)
+            {
+                printf("Removing CC-ND deadlock from file...\n");
+                removeShape(handle, pathsToFilterOut[i].shapes[0]);
+                removeShape(handle, pathsToFilterOut[i].shapes[1]);
+                removeShape(handle, pathsToFilterOut[i].shapes[2]);
+                removeShape(handle, pathsToFilterOut[i].shapes[3]);
+            }
+        }
+
+        return handle;
+    }
+
+    return nullptr;
+}