From 47ec94641b0d67cd3aa4fc2efcb11dfbb43e1094 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Wed, 7 Aug 2024 18:48:29 +0300
Subject: [PATCH] Support filter in vecr renderer

---
 libs/vecr/include/psemek/vecr/full.hpp     | 26 ++++++++++++++++++++++
 libs/vecr/include/psemek/vecr/renderer.hpp |  2 ++
 libs/vecr/source/renderer.cpp              |  4 ++++
 3 files changed, 32 insertions(+)
 create mode 100644 libs/vecr/include/psemek/vecr/full.hpp

diff --git a/libs/vecr/include/psemek/vecr/full.hpp b/libs/vecr/include/psemek/vecr/full.hpp
new file mode 100644
index 00000000..15e76698
--- /dev/null
+++ b/libs/vecr/include/psemek/vecr/full.hpp
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <psemek/vecr/sdf.hpp>
+#include <psemek/geom/point.hpp>
+#include <psemek/geom/box.hpp>
+
+namespace psemek::vecr
+{
+
+	struct full
+	{};
+
+	inline sdf_sample sdf(full const &, geom::point<float, 2> const &)
+	{
+		return {
+			.value = 0.f,
+			.gradient = {0.f, 0.f},
+		};
+	}
+
+	inline geom::box<float, 2> bbox(full const &)
+	{
+		return geom::box<float, 2>::full();
+	}
+
+}
diff --git a/libs/vecr/include/psemek/vecr/renderer.hpp b/libs/vecr/include/psemek/vecr/renderer.hpp
index 6fcfc49b..037bd948 100644
--- a/libs/vecr/include/psemek/vecr/renderer.hpp
+++ b/libs/vecr/include/psemek/vecr/renderer.hpp
@@ -2,6 +2,7 @@
 
 #include <psemek/vecr/sdf.hpp>
 #include <psemek/vecr/any.hpp>
+#include <psemek/vecr/full.hpp>
 #include <psemek/vecr/colorizer.hpp>
 #include <psemek/vecr/blend_mode.hpp>
 #include <psemek/gfx/pixmap.hpp>
@@ -12,6 +13,7 @@ namespace psemek::vecr
 	struct primitive
 	{
 		any mask = {};
+		any filter = full{};
 		float blur = 1.f;
 		float alpha = 1.f;
 		any_colorizer colorizer = {};
diff --git a/libs/vecr/source/renderer.cpp b/libs/vecr/source/renderer.cpp
index 4015e79e..7214443c 100644
--- a/libs/vecr/source/renderer.cpp
+++ b/libs/vecr/source/renderer.cpp
@@ -71,6 +71,10 @@ namespace psemek::vecr
 			{
 				geom::point const center{(x + 0.5f) / samples_, (y + 0.5f) / samples_};
 
+				auto const filter_sample = sdf(primitive.filter, center);
+
+				if (filter_sample.value > aa) continue;
+
 				auto const sample = sdf(primitive.mask, center);
 
 				if (sample.value > aa) continue;