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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include <algorithm>
#include <cstring>
#include <string>
#include <utility>
#include <SOIL/SOIL.h>
#include "Common/CommonPaths.h"
#include "Common/FileSearch.h"
#include "Common/FileUtil.h"
#include "Common/StringUtil.h"
#include "Core/ConfigManager.h"
#include "VideoCommon/HiresTextures.h"
#include "VideoCommon/VideoConfig.h"
std::unordered_map<std::string, std::string> HiresTexture::textureMap;
void HiresTexture::Init(const std::string& gameCode)
{
textureMap.clear();
CFileSearch::XStringVector Directories;
std::string szDir = StringFromFormat("%s%s", File::GetUserPath(D_HIRESTEXTURES_IDX).c_str(), gameCode.c_str());
Directories.push_back(szDir);
for (u32 i = 0; i < Directories.size(); i++)
{
File::FSTEntry FST_Temp;
File::ScanDirectoryTree(Directories[i], FST_Temp);
for (auto& entry : FST_Temp.children)
{
if (entry.isDirectory)
{
bool duplicate = false;
for (auto& Directory : Directories)
{
if (Directory == entry.physicalName)
{
duplicate = true;
break;
}
}
if (!duplicate)
Directories.push_back(entry.physicalName);
}
}
}
CFileSearch::XStringVector Extensions = {
"*.png",
"*.bmp",
"*.tga",
"*.dds",
"*.jpg" // Why not? Could be useful for large photo-like textures
};
CFileSearch FileSearch(Extensions, Directories);
const CFileSearch::XStringVector& rFilenames = FileSearch.GetFileNames();
const std::string code = StringFromFormat("%s_", gameCode.c_str());
if (rFilenames.size() > 0)
{
for (auto& rFilename : rFilenames)
{
std::string FileName;
SplitPath(rFilename, nullptr, &FileName, nullptr);
if (FileName.substr(0, code.length()).compare(code) == 0 && textureMap.find(FileName) == textureMap.end())
textureMap.insert(std::map<std::string, std::string>::value_type(FileName, rFilename));
}
}
}
std::string HiresTexture::GenBaseName(const u8* texture, size_t texture_size, const u8* tlut, size_t tlut_size, u32 width, u32 height, int format, bool dump)
{
// checking for min/max on paletted textures
u32 min = 0xffff;
u32 max = 0;
switch(tlut_size)
{
case 0: break;
case 16 * 2:
for (size_t i = 0; i < texture_size; i++)
{
min = std::min<u32>(min, texture[i] & 0xf);
min = std::min<u32>(min, texture[i] >> 4);
max = std::max<u32>(max, texture[i] & 0xf);
max = std::max<u32>(max, texture[i] >> 4);
}
break;
case 256 * 2:
for (size_t i = 0; i < texture_size; i++)
{
min = std::min<u32>(min, texture[i]);
max = std::max<u32>(max, texture[i]);
}
break;
case 16384 * 2:
for (size_t i = 0; i < texture_size/2; i++)
{
min = std::min<u32>(min, Common::swap16(((u16*)texture)[i]) & 0x3fff);
max = std::max<u32>(max, Common::swap16(((u16*)texture)[i]) & 0x3fff);
}
break;
}
if (tlut_size > 0)
{
tlut_size = 2 * (max + 1 - min);
tlut += 2 * min;
}
u64 tex_hash = GetHashHiresTexture(texture, (int)texture_size);
u64 tlut_hash = tlut_size ? GetHashHiresTexture(tlut, (int)tlut_size) : 0;
std::string basename = StringFromFormat("tex1_%dx%d_%016lx", width, height, tex_hash);
std::string tlutname = tlut_size ? StringFromFormat("_%016lx", tlut_hash) : "";
std::string formatname = StringFromFormat("_%d", format);
if (!dump && textureMap.find(basename + "_*" + formatname) != textureMap.end())
return basename + "_*" + formatname;
return basename + tlutname + formatname;
}
HiresTexture* HiresTexture::Search(const u8* texture, size_t texture_size, const u8* tlut, size_t tlut_size, u32 width, u32 height, int format)
{
std::string base_filename = GenBaseName(texture, texture_size, tlut, tlut_size, width, height, format);
HiresTexture* ret = nullptr;
for (int level = 0;; level++)
{
std::string filename = base_filename;
if (level)
{
filename += StringFromFormat("_mip%u", level);
}
if (textureMap.find(filename) != textureMap.end())
{
Level l;
File::IOFile file;
file.Open(textureMap[filename], "rb");
std::vector<u8> buffer(file.GetSize());
file.ReadBytes(buffer.data(), file.GetSize());
int channels;
l.data = SOIL_load_image_from_memory(buffer.data(), (int)buffer.size(), (int*)&l.width, (int*)&l.height, &channels, SOIL_LOAD_RGBA);
l.data_size = (size_t)l.width * l.height * 4;
if (l.data == nullptr)
{
ERROR_LOG(VIDEO, "Custom texture %s failed to load", filename.c_str());
break;
}
if (!level)
{
if (l.width * height != l.height * width)
ERROR_LOG(VIDEO, "Invalid custom texture size %dx%d for texture %s. The aspect differs from the native size %dx%d.",
l.width, l.height, filename.c_str(), width, height);
if (l.width % width || l.height % height)
WARN_LOG(VIDEO, "Invalid custom texture size %dx%d for texture %s. Please use an integer upscaling factor based on the native size %dx%d.",
l.width, l.height, filename.c_str(), width, height);
width = l.width;
height = l.height;
}
else if (width != l.width || height != l.height)
{
ERROR_LOG(VIDEO, "Invalid custom texture size %dx%d for texture %s. This mipmap layer _must_ be %dx%d.",
l.width, l.height, filename.c_str(), width, height);
SOIL_free_image_data(l.data);
break;
}
// calculate the size of the next mipmap
width >>= 1;
height >>= 1;
if (!ret)
ret = new HiresTexture();
ret->m_levels.push_back(l);
}
else
{
break;
}
}
return ret;
}
HiresTexture::~HiresTexture()
{
for (auto& l : m_levels)
{
SOIL_free_image_data(l.data);
}
}
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