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// Copyright 2019 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "InputCommon/DynamicInputTextures/DITConfiguration.h"
#include <optional>
#include <sstream>
#include <string>
#include <picojson.h>
#include "Common/CommonPaths.h"
#include "Common/IniFile.h"
#include "Common/JsonUtil.h"
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "Core/ConfigManager.h"
#include "InputCommon/ControllerEmu/ControllerEmu.h"
#include "InputCommon/DynamicInputTextures/DITSpecification.h"
#include "InputCommon/ImageOperations.h"
namespace InputCommon::DynamicInputTextures
{
Configuration::Configuration(const std::string& json_path)
{
picojson::value root;
std::string error;
if (!JsonFromFile(json_path, &root, &error))
{
ERROR_LOG_FMT(VIDEO, "Failed to load dynamic input json file '{}' due to parse error: {}",
json_path, error);
m_valid = false;
return;
}
SplitPath(json_path, &m_base_path, nullptr, nullptr);
const picojson::value& specification_json = root.get("specification");
u8 specification = 1;
if (specification_json.is<double>())
{
const double spec_from_json = specification_json.get<double>();
if (spec_from_json < static_cast<double>(std::numeric_limits<u8>::min()) ||
spec_from_json > static_cast<double>(std::numeric_limits<u8>::max()))
{
ERROR_LOG_FMT(
VIDEO,
"Failed to load dynamic input json file '{}', specification '{}' is not within bounds",
json_path, spec_from_json);
m_valid = false;
return;
}
specification = static_cast<u8>(spec_from_json);
}
if (specification != 1)
{
ERROR_LOG_FMT(VIDEO,
"Failed to load dynamic input json file '{}', specification '{}' is invalid",
json_path, specification);
m_valid = false;
return;
}
m_valid = ProcessSpecificationV1(root, m_dynamic_input_textures, m_base_path, json_path);
}
Configuration::~Configuration() = default;
void Configuration::GenerateTextures(const Common::IniFile& file,
const std::vector<std::string>& controller_names,
OutputDetails* output) const
{
for (const auto& texture_data : m_dynamic_input_textures)
{
GenerateTexture(file, controller_names, texture_data, output);
}
}
void Configuration::GenerateTexture(const Common::IniFile& file,
const std::vector<std::string>& controller_names,
const Data& texture_data, OutputDetails* output) const
{
// Two copies of the loaded texture
// The first one is used as a fallback if a key or device isn't mapped
// the second one is used as the final image to write to the textures directory
const auto original_image = LoadImage(m_base_path + texture_data.m_image_name);
if (!original_image)
{
ERROR_LOG_FMT(VIDEO, "Failed to load image '{}' needed for dynamic input texture generation",
texture_data.m_image_name);
return;
}
auto image_to_write = original_image;
bool dirty = false;
for (const auto& controller_name : controller_names)
{
auto* sec = file.GetSection(controller_name);
if (!sec)
{
continue;
}
std::string device_name;
if (!sec->Get("Device", &device_name))
{
continue;
}
auto emulated_controls_iter = texture_data.m_emulated_controllers.find(controller_name);
if (emulated_controls_iter == texture_data.m_emulated_controllers.end())
{
continue;
}
bool device_found = true;
auto host_devices_iter = texture_data.m_host_devices.find(device_name);
if (host_devices_iter == texture_data.m_host_devices.end())
{
// If we fail to find our exact device,
// it's possible the creator doesn't care (single player game)
// and has used a wildcard for any device
host_devices_iter = texture_data.m_host_devices.find("");
if (host_devices_iter == texture_data.m_host_devices.end())
{
device_found = false;
}
}
for (auto& [emulated_key, rects] : emulated_controls_iter->second)
{
if (!device_found)
{
// If we get here, that means the controller is set to a
// device not exposed to the pack
dirty = true;
continue;
}
std::string host_key;
sec->Get(emulated_key, &host_key);
const auto input_image_iter = host_devices_iter->second.find(host_key);
if (input_image_iter == host_devices_iter->second.end())
{
dirty = true;
}
else
{
const std::string full_image_path = m_base_path + input_image_iter->second;
const auto host_key_image = LoadImage(full_image_path);
if (!host_key_image)
{
ERROR_LOG_FMT(VIDEO,
"Failed to load image '{}' needed for dynamic input texture generation",
full_image_path);
continue;
}
for (const auto& rect : rects)
{
InputCommon::ImagePixelData pixel_data;
if (host_key_image->width == rect.GetWidth() &&
host_key_image->height == rect.GetHeight())
{
pixel_data = *host_key_image;
}
else if (texture_data.m_preserve_aspect_ratio)
{
pixel_data =
ResizeKeepAspectRatio(ResizeMode::Nearest, *host_key_image, rect.GetWidth(),
rect.GetHeight(), Pixel{0, 0, 0, 0});
}
else
{
pixel_data =
Resize(ResizeMode::Nearest, *host_key_image, rect.GetWidth(), rect.GetHeight());
}
CopyImageRegion(pixel_data, *image_to_write,
Rect{0, 0, rect.GetWidth(), rect.GetHeight()}, rect);
dirty = true;
}
}
}
}
if (dirty)
{
(*output)[texture_data.m_generated_folder_name][texture_data.m_hires_texture_name] =
std::move(*image_to_write);
}
}
} // namespace InputCommon::DynamicInputTextures
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