1 files changed, 254 insertions, 0 deletions
diff --git a/Source/Core/VideoCommon/GraphicsModSystem/Config/GraphicsTarget.cpp b/Source/Core/VideoCommon/GraphicsModSystem/Config/GraphicsTarget.cpp
new file mode 100644
index 0000000000..f55f184520
--- /dev/null
+++ b/Source/Core/VideoCommon/GraphicsModSystem/Config/GraphicsTarget.cpp
@@ -0,0 +1,254 @@
+// Copyright 2022 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "VideoCommon/GraphicsModSystem/Config/GraphicsTarget.h"
+
+#include "Common/Logging/Log.h"
+#include "Common/StringUtil.h"
+#include "VideoCommon/TextureCacheBase.h"
+
+namespace
+{
+template <typename T, std::enable_if_t<std::is_base_of_v<FBTarget, T>, int> = 0>
+std::optional<T> DeserializeFBTargetFromConfig(const picojson::object& obj, std::string_view prefix)
+{
+  T fb;
+  const auto texture_filename_iter = obj.find("texture_filename");
+  if (texture_filename_iter == obj.end())
+  {
+    ERROR_LOG_FMT(VIDEO,
+                  "Failed to load mod configuration file, option 'texture_filename' not found");
+    return std::nullopt;
+  }
+  if (!texture_filename_iter->second.is<std::string>())
+  {
+    ERROR_LOG_FMT(
+        VIDEO,
+        "Failed to load mod configuration file, option 'texture_filename' is not a string type");
+    return std::nullopt;
+  }
+  const auto texture_filename = texture_filename_iter->second.get<std::string>();
+  const auto texture_filename_without_prefix = texture_filename.substr(prefix.size() + 1);
+  const auto split_str_values = SplitString(texture_filename_without_prefix, '_');
+  if (split_str_values.size() == 1)
+  {
+    ERROR_LOG_FMT(
+        VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is not valid");
+    return std::nullopt;
+  }
+  const auto split_width_height_values = SplitString(texture_filename_without_prefix, 'x');
+  if (split_width_height_values.size() != 2)
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is "
+                         "not valid, width and height separator found more matches than expected");
+    return std::nullopt;
+  }
+
+  const std::size_t width_underscore_pos = split_width_height_values[0].find_last_of('_');
+  std::string width_str;
+  if (width_underscore_pos == std::string::npos)
+  {
+    width_str = split_width_height_values[0];
+  }
+  else
+  {
+    width_str = split_width_height_values[0].substr(width_underscore_pos + 1);
+  }
+  if (!TryParse(width_str, &fb.m_width))
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is "
+                         "not valid, width not a number");
+    return std::nullopt;
+  }
+
+  const std::size_t height_underscore_pos = split_width_height_values[1].find_first_of('_');
+  if (height_underscore_pos == std::string::npos ||
+      height_underscore_pos == split_width_height_values[1].size() - 1)
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is "
+                         "not valid, underscore after height is missing or incomplete");
+    return std::nullopt;
+  }
+  const std::string height_str = split_width_height_values[1].substr(0, height_underscore_pos);
+  if (!TryParse(height_str, &fb.m_height))
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is "
+                         "not valid, height not a number");
+    return std::nullopt;
+  }
+
+  const std::size_t format_underscore_pos =
+      split_width_height_values[1].find_first_of('_', height_underscore_pos + 1);
+
+  std::string format_str;
+  if (format_underscore_pos == std::string::npos)
+  {
+    format_str = split_width_height_values[1].substr(height_underscore_pos + 1);
+  }
+  else
+  {
+    format_str = split_width_height_values[1].substr(
+        height_underscore_pos + 1, (format_underscore_pos - height_underscore_pos) - 1);
+  }
+  u32 format;
+  if (!TryParse(format_str, &format))
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is "
+                         "not valid, texture format is not a number");
+    return std::nullopt;
+  }
+  if (!IsValidTextureFormat(static_cast<TextureFormat>(format)))
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' is "
+                         "not valid, texture format is not valid");
+    return std::nullopt;
+  }
+  fb.m_texture_format = static_cast<TextureFormat>(format);
+
+  return fb;
+}
+std::optional<std::string> ExtractTextureFilenameForConfig(const picojson::object& obj)
+{
+  const auto texture_filename_iter = obj.find("texture_filename");
+  if (texture_filename_iter == obj.end())
+  {
+    ERROR_LOG_FMT(VIDEO,
+                  "Failed to load mod configuration file, option 'texture_filename' not found");
+    return std::nullopt;
+  }
+  if (!texture_filename_iter->second.is<std::string>())
+  {
+    ERROR_LOG_FMT(
+        VIDEO,
+        "Failed to load mod configuration file, option 'texture_filename' is not a string type");
+    return std::nullopt;
+  }
+  std::string texture_info = texture_filename_iter->second.get<std::string>();
+  if (texture_info.find(EFB_DUMP_PREFIX) != std::string::npos)
+  {
+    const auto letter_c_pos = texture_info.find_first_of('n');
+    if (letter_c_pos == std::string::npos)
+    {
+      ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' "
+                           "is an efb without a count");
+      return std::nullopt;
+    }
+    texture_info =
+        texture_info.substr(letter_c_pos - 1, texture_info.find_first_of("_", letter_c_pos));
+  }
+  else if (texture_info.find(XFB_DUMP_PREFIX) != std::string::npos)
+  {
+    const auto letter_c_pos = texture_info.find_first_of('n');
+    if (letter_c_pos == std::string::npos)
+    {
+      ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, value in 'texture_filename' "
+                           "is an xfb without a count");
+      return std::nullopt;
+    }
+    texture_info =
+        texture_info.substr(letter_c_pos - 1, texture_info.find_first_of("_", letter_c_pos));
+  }
+  return texture_info;
+}
+}  // namespace
+
+std::optional<GraphicsTargetConfig> DeserializeTargetFromConfig(const picojson::object& obj)
+{
+  const auto type_iter = obj.find("type");
+  if (type_iter == obj.end())
+  {
+    ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, option 'type' not found");
+    return std::nullopt;
+  }
+  if (!type_iter->second.is<std::string>())
+  {
+    ERROR_LOG_FMT(VIDEO,
+                  "Failed to load mod configuration file, option 'type' is not a string type");
+    return std::nullopt;
+  }
+  const std::string& type = type_iter->second.get<std::string>();
+  if (type == "draw_started")
+  {
+    std::optional<std::string> texture_info = ExtractTextureFilenameForConfig(obj);
+    if (!texture_info.has_value())
+      return std::nullopt;
+
+    DrawStartedTextureTarget target;
+    target.m_texture_info_string = texture_info.value();
+    return target;
+  }
+  else if (type == "load_texture")
+  {
+    std::optional<std::string> texture_info = ExtractTextureFilenameForConfig(obj);
+    if (!texture_info.has_value())
+      return std::nullopt;
+
+    LoadTextureTarget target;
+    target.m_texture_info_string = texture_info.value();
+    return target;
+  }
+  else if (type == "efb")
+  {
+    return DeserializeFBTargetFromConfig<EFBTarget>(obj, EFB_DUMP_PREFIX);
+  }
+  else if (type == "xfb")
+  {
+    return DeserializeFBTargetFromConfig<XFBTarget>(obj, EFB_DUMP_PREFIX);
+  }
+  else if (type == "projection")
+  {
+    ProjectionTarget target;
+    const auto texture_iter = obj.find("texture_filename");
+    if (texture_iter != obj.end())
+    {
+      std::optional<std::string> texture_info = ExtractTextureFilenameForConfig(obj);
+      if (!texture_info.has_value())
+        return std::nullopt;
+      target.m_texture_info_string = texture_info;
+    }
+    const auto value_iter = obj.find("value");
+    if (value_iter == obj.end())
+    {
+      ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, option 'value' not found");
+      return std::nullopt;
+    }
+    if (!value_iter->second.is<std::string>())
+    {
+      ERROR_LOG_FMT(VIDEO,
+                    "Failed to load mod configuration file, option 'value' is not a string type");
+      return std::nullopt;
+    }
+    const auto& value_str = value_iter->second.get<std::string>();
+    if (value_str == "2d")
+    {
+      target.m_projection_type = ProjectionType::Orthographic;
+    }
+    else if (value_str == "3d")
+    {
+      target.m_projection_type = ProjectionType::Perspective;
+    }
+    else
+    {
+      ERROR_LOG_FMT(VIDEO, "Failed to load mod configuration file, option 'value' is not a valid "
+                           "value, valid values are: 2d, 3d");
+      return std::nullopt;
+    }
+    return target;
+  }
+  else
+  {
+    ERROR_LOG_FMT(VIDEO,
+                  "Failed to load mod configuration file, option 'type' is not a valid value");
+  }
+  return std::nullopt;
+}
+
+void SerializeTargetToProfile(picojson::object*, const GraphicsTargetConfig&)
+{
+  // Added for consistency, no functionality as of now
+}
+
+void DeserializeTargetFromProfile(const picojson::object&, GraphicsTargetConfig*)
+{
+  // Added for consistency, no functionality as of now
+}