From 440999d7789b54066380b3f13f1845d74a839a6e Mon Sep 17 00:00:00 2001
From: iwubcode <iwubcode@users.noreply.github.com>
Date: Fri, 22 Aug 2025 19:09:39 -0500
Subject: VideoCommon: update material asset to support render state
 properties, support multi-pass, and textures are now split out (as well as
 supporting a way to calculate sampler origin)

---
 .../VideoCommon/Assets/TextureSamplerValue.cpp     | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 Source/Core/VideoCommon/Assets/TextureSamplerValue.cpp

(limited to 'Source/Core/VideoCommon/Assets/TextureSamplerValue.cpp')

diff --git a/Source/Core/VideoCommon/Assets/TextureSamplerValue.cpp b/Source/Core/VideoCommon/Assets/TextureSamplerValue.cpp
new file mode 100644
index 0000000000..19fd4181a3
--- /dev/null
+++ b/Source/Core/VideoCommon/Assets/TextureSamplerValue.cpp
@@ -0,0 +1,60 @@
+// Copyright 2024 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "VideoCommon/Assets/TextureSamplerValue.h"
+
+#include <optional>
+
+#include "Common/JsonUtil.h"
+#include "Common/StringUtil.h"
+
+namespace VideoCommon
+{
+namespace
+{
+std::optional<TextureSamplerValue::SamplerOrigin>
+ReadSamplerOriginFromJSON(const picojson::object& json)
+{
+  auto sampler_origin = ReadStringFromJson(json, "sampler_origin").value_or("");
+  Common::ToLower(&sampler_origin);
+
+  if (sampler_origin == "asset")
+  {
+    return TextureSamplerValue::SamplerOrigin::Asset;
+  }
+  else if (sampler_origin == "texture_hash")
+  {
+    return TextureSamplerValue::SamplerOrigin::TextureHash;
+  }
+
+  return std::nullopt;
+}
+}  // namespace
+std::string TextureSamplerValue::ToString(SamplerOrigin sampler_origin)
+{
+  if (sampler_origin == SamplerOrigin::Asset)
+    return "asset";
+
+  return "texture_hash";
+}
+
+bool TextureSamplerValue::FromJson(const picojson::object& json, TextureSamplerValue* data)
+{
+  data->asset = ReadStringFromJson(json, "asset").value_or("");
+  data->texture_hash = ReadStringFromJson(json, "texture_hash").value_or("");
+  data->sampler_origin =
+      ReadSamplerOriginFromJSON(json).value_or(TextureSamplerValue::SamplerOrigin::Asset);
+
+  return true;
+}
+
+void TextureSamplerValue::ToJson(picojson::object* obj, const TextureSamplerValue& data)
+{
+  if (!obj) [[unlikely]]
+    return;
+
+  obj->emplace("asset", data.asset);
+  obj->emplace("texture_hash", data.texture_hash);
+  obj->emplace("sampler_origin", ToString(data.sampler_origin));
+}
+}  // namespace VideoCommon
-- 
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