InputCommon: Move initial dynamic input texture configuration logic to a 'specification 1' function and load in a 'specification' attribute that defaults to 1 if not present (with 1 being the only valid value at the moment)

1 files changed, 201 insertions, 0 deletions

diff --git a/Source/Core/InputCommon/DynamicInputTextures/DITSpecification.cpp b/Source/Core/InputCommon/DynamicInputTextures/DITSpecification.cpp
new file mode 100644
index 0000000000..f176115f0e
--- /dev/null
+++ b/Source/Core/InputCommon/DynamicInputTextures/DITSpecification.cpp
@@ -0,0 +1,201 @@
+// Copyright 2021 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "InputCommon/DynamicInputTextures/DITSpecification.h"
+
+#include <fmt/format.h>
+
+#include "Common/FileUtil.h"
+#include "Common/IOFile.h"
+#include "Common/Logging/Log.h"
+#include "Core/ConfigManager.h"
+
+namespace InputCommon::DynamicInputTextures
+{
+bool ProcessSpecificationV1(picojson::value& root, std::vector<Data>& input_textures,
+                            const std::string& base_path, const std::string& json_file)
+{
+  const picojson::value& output_textures_json = root.get("output_textures");
+  if (!output_textures_json.is<picojson::object>())
+  {
+    ERROR_LOG_FMT(
+        VIDEO,
+        "Failed to load dynamic input json file '{}' because 'output_textures' is missing or "
+        "was not of type object",
+        json_file);
+    return false;
+  }
+
+  const picojson::value& preserve_aspect_ratio_json = root.get("preserve_aspect_ratio");
+
+  bool preserve_aspect_ratio = true;
+  if (preserve_aspect_ratio_json.is<bool>())
+  {
+    preserve_aspect_ratio = preserve_aspect_ratio_json.get<bool>();
+  }
+
+  const picojson::value& generated_folder_name_json = root.get("generated_folder_name");
+
+  const std::string& game_id = SConfig::GetInstance().GetGameID();
+  std::string generated_folder_name = fmt::format("{}_Generated", game_id);
+  if (generated_folder_name_json.is<std::string>())
+  {
+    generated_folder_name = generated_folder_name_json.get<std::string>();
+  }
+
+  const picojson::value& default_host_controls_json = root.get("default_host_controls");
+  picojson::object default_host_controls;
+  if (default_host_controls_json.is<picojson::object>())
+  {
+    default_host_controls = default_host_controls_json.get<picojson::object>();
+  }
+
+  const auto output_textures = output_textures_json.get<picojson::object>();
+  for (auto& [name, data] : output_textures)
+  {
+    Data texture_data;
+    texture_data.m_hires_texture_name = name;
+
+    // Required fields
+    const picojson::value& image = data.get("image");
+    const picojson::value& emulated_controls = data.get("emulated_controls");
+
+    if (!image.is<std::string>() || !emulated_controls.is<picojson::object>())
+    {
+      ERROR_LOG_FMT(VIDEO,
+                    "Failed to load dynamic input json file '{}' because required fields "
+                    "'image', or 'emulated_controls' are either "
+                    "missing or the incorrect type",
+                    json_file);
+      return false;
+    }
+
+    texture_data.m_image_name = image.to_str();
+    texture_data.m_preserve_aspect_ratio = preserve_aspect_ratio;
+    texture_data.m_generated_folder_name = generated_folder_name;
+
+    const std::string image_full_path = base_path + texture_data.m_image_name;
+    if (!File::Exists(image_full_path))
+    {
+      ERROR_LOG_FMT(VIDEO,
+                    "Failed to load dynamic input json file '{}' because the image '{}' "
+                    "could not be loaded",
+                    json_file, image_full_path);
+      return false;
+    }
+
+    const auto& emulated_controls_json = emulated_controls.get<picojson::object>();
+    for (auto& [emulated_controller_name, map] : emulated_controls_json)
+    {
+      if (!map.is<picojson::object>())
+      {
+        ERROR_LOG_FMT(VIDEO,
+                      "Failed to load dynamic input json file '{}' because 'emulated_controls' "
+                      "map key '{}' is incorrect type.  Expected map  ",
+                      json_file, emulated_controller_name);
+        return false;
+      }
+
+      auto& key_to_regions = texture_data.m_emulated_controllers[emulated_controller_name];
+      for (auto& [emulated_control, regions_array] : map.get<picojson::object>())
+      {
+        if (!regions_array.is<picojson::array>())
+        {
+          ERROR_LOG_FMT(
+              VIDEO,
+              "Failed to load dynamic input json file '{}' because emulated controller '{}' "
+              "key '{}' has incorrect value type.  Expected array ",
+              json_file, emulated_controller_name, emulated_control);
+          return false;
+        }
+
+        std::vector<Rect> region_rects;
+        for (auto& region : regions_array.get<picojson::array>())
+        {
+          Rect r;
+          if (!region.is<picojson::array>())
+          {
+            ERROR_LOG_FMT(
+                VIDEO,
+                "Failed to load dynamic input json file '{}' because emulated controller '{}' "
+                "key '{}' has a region with the incorrect type.  Expected array ",
+                json_file, emulated_controller_name, emulated_control);
+            return false;
+          }
+
+          auto region_offsets = region.get<picojson::array>();
+
+          if (region_offsets.size() != 4)
+          {
+            ERROR_LOG_FMT(
+                VIDEO,
+                "Failed to load dynamic input json file '{}' because emulated controller '{}' "
+                "key '{}' has a region that does not have 4 offsets (left, top, right, "
+                "bottom).",
+                json_file, emulated_controller_name, emulated_control);
+            return false;
+          }
+
+          if (!std::all_of(region_offsets.begin(), region_offsets.end(),
+                           [](picojson::value val) { return val.is<double>(); }))
+          {
+            ERROR_LOG_FMT(
+                VIDEO,
+                "Failed to load dynamic input json file '{}' because emulated controller '{}' "
+                "key '{}' has a region that has the incorrect offset type.",
+                json_file, emulated_controller_name, emulated_control);
+            return false;
+          }
+
+          r.left = static_cast<u32>(region_offsets[0].get<double>());
+          r.top = static_cast<u32>(region_offsets[1].get<double>());
+          r.right = static_cast<u32>(region_offsets[2].get<double>());
+          r.bottom = static_cast<u32>(region_offsets[3].get<double>());
+          region_rects.push_back(r);
+        }
+        key_to_regions.insert_or_assign(emulated_control, std::move(region_rects));
+      }
+    }
+
+    // Default to the default controls but overwrite if the creator
+    // has provided something specific
+    picojson::object host_controls = default_host_controls;
+    const picojson::value& host_controls_json = data.get("host_controls");
+    if (host_controls_json.is<picojson::object>())
+    {
+      host_controls = host_controls_json.get<picojson::object>();
+    }
+
+    if (host_controls.empty())
+    {
+      ERROR_LOG_FMT(VIDEO,
+                    "Failed to load dynamic input json file '{}' because field "
+                    "'host_controls' is missing ",
+                    json_file);
+      return false;
+    }
+
+    for (auto& [host_device, map] : host_controls)
+    {
+      if (!map.is<picojson::object>())
+      {
+        ERROR_LOG_FMT(VIDEO,
+                      "Failed to load dynamic input json file '{}' because 'host_controls' "
+                      "map key '{}' is incorrect type ",
+                      json_file, host_device);
+        return false;
+      }
+      auto& host_control_to_imagename = texture_data.m_host_devices[host_device];
+      for (auto& [host_control, image_name] : map.get<picojson::object>())
+      {
+        host_control_to_imagename.insert_or_assign(host_control, image_name.to_str());
+      }
+    }
+
+    input_textures.emplace_back(std::move(texture_data));
+  }
+
+  return true;
+}
+}  // namespace InputCommon::DynamicInputTextures