Remove dead plugin scaffolds and duplicate lib dirs

The *_native C++ ports were replaced by bundled Python + .py plugins in
de4db79, but the source dirs were left behind without any CMake wiring —
causing confusion when editing them appears to do nothing. Same story
for libs/dds_header (stale duplicate of libs/preview_dds, unrelated to
the actively-used libs/dds-header) and libs/game_gamebryo (superseded
by libs/game_bethesda/src/gamebryo).

Removes:
- libs/basic_games_native
- libs/form43_checker_native
- libs/installer_omod_native
- libs/preview_dds_native
- libs/rootbuilder_native
- libs/script_extender_checker_native
- libs/dds_header
- libs/game_gamebryo

1 files changed, 0 insertions, 132 deletions

diff --git a/libs/preview_dds_native/src/ddsfile.cpp b/libs/preview_dds_native/src/ddsfile.cpp
deleted file mode 100644
index 91dc627..0000000
--- a/libs/preview_dds_native/src/ddsfile.cpp
+++ /dev/null
@@ -1,132 +0,0 @@
-#include "ddsfile.h"
-
-#include <QFile>
-
-#include <algorithm>
-#include <cstring>
-
-bool DDSFile::loadFromFile(const QString& path)
-{
-  QFile file(path);
-  if (!file.open(QIODevice::ReadOnly)) {
-    return false;
-  }
-  return parse(file.readAll());
-}
-
-bool DDSFile::loadFromData(const QByteArray& data)
-{
-  return parse(data);
-}
-
-bool DDSFile::parse(const QByteArray& data)
-{
-  const char* ptr = data.constData();
-  int offset      = 0;
-  int size        = data.size();
-
-  // Magic number
-  if (size < 4)
-    return false;
-  uint32_t magic;
-  std::memcpy(&magic, ptr + offset, 4);
-  offset += 4;
-  if (magic != DDS_MAGIC)
-    return false;
-
-  // DDS header
-  if (size - offset < static_cast<int>(sizeof(DDSHeader)))
-    return false;
-  DDSHeader header;
-  std::memcpy(&header, ptr + offset, sizeof(DDSHeader));
-  offset += sizeof(DDSHeader);
-
-  if (header.dwSize != 124)
-    return false;
-
-  // DXT10 extended header
-  DDSHeaderDXT10 dxt10{};
-  bool hasDXT10 = false;
-  if ((header.ddspf.dwFlags & DDPF_FOURCC) &&
-      header.ddspf.dwFourCC == makeFourCC('D', 'X', '1', '0')) {
-    if (size - offset < static_cast<int>(sizeof(DDSHeaderDXT10)))
-      return false;
-    std::memcpy(&dxt10, ptr + offset, sizeof(DDSHeaderDXT10));
-    offset += sizeof(DDSHeaderDXT10);
-    hasDXT10 = true;
-  }
-
-  m_width  = header.dwWidth;
-  m_height = header.dwHeight;
-
-  // Determine GL format
-  m_glFormat = getGLFormat(header.ddspf, hasDXT10 ? &dxt10 : nullptr);
-  if (!m_glFormat.valid) {
-    return false;
-  }
-
-  // Determine DXGI format for size calculations
-  if (hasDXT10) {
-    m_dxgiFormat = dxt10.dxgiFormat;
-  } else if (header.ddspf.dwFlags & DDPF_FOURCC) {
-    m_dxgiFormat = fourCCToDXGI(header.ddspf.dwFourCC);
-  } else {
-    m_dxgiFormat = DXGIFormat::UNKNOWN;
-  }
-
-  // Description
-  m_description = formatDescription(header.ddspf, hasDXT10 ? &dxt10 : nullptr);
-  m_description +=
-      QString(" | %1x%2").arg(m_width).arg(m_height);
-
-  // Cubemap detection
-  m_cubemap  = false;
-  int layers = 1;
-  if (header.dwCaps2 & DDSCAPS2_CUBEMAP) {
-    m_cubemap = true;
-    layers    = 0;
-    if (header.dwCaps2 & DDSCAPS2_CUBEMAP_POSITIVEX) layers++;
-    if (header.dwCaps2 & DDSCAPS2_CUBEMAP_NEGATIVEX) layers++;
-    if (header.dwCaps2 & DDSCAPS2_CUBEMAP_POSITIVEY) layers++;
-    if (header.dwCaps2 & DDSCAPS2_CUBEMAP_NEGATIVEY) layers++;
-    if (header.dwCaps2 & DDSCAPS2_CUBEMAP_POSITIVEZ) layers++;
-    if (header.dwCaps2 & DDSCAPS2_CUBEMAP_NEGATIVEZ) layers++;
-    m_description += " | Cubemap";
-  } else {
-    m_description += " | 2D";
-  }
-
-  // Mipmap count
-  int mipCount = 1;
-  if (header.dwFlags & DDSD_MIPMAPCOUNT) {
-    mipCount = std::max(1u, header.dwMipMapCount);
-  }
-  if (mipCount > 1) {
-    m_description += QString(" | %1 mips").arg(mipCount);
-  }
-
-  // Read pixel data for each face and mip level
-  m_faces.resize(layers);
-  for (int face = 0; face < layers; ++face) {
-    m_faces[face].mips.resize(mipCount);
-    uint32_t w = m_width;
-    uint32_t h = m_height;
-    for (int mip = 0; mip < mipCount; ++mip) {
-      uint32_t dataSize = mipDataSize(m_dxgiFormat, header.ddspf, w, h);
-      if (offset + static_cast<int>(dataSize) > size) {
-        // Truncated file, keep what we have
-        m_faces[face].mips.resize(mip);
-        break;
-      }
-      m_faces[face].mips[mip].width  = w;
-      m_faces[face].mips[mip].height = h;
-      m_faces[face].mips[mip].data =
-          QByteArray(ptr + offset, static_cast<int>(dataSize));
-      offset += dataSize;
-      w = std::max(1u, w / 2);
-      h = std::max(1u, h / 2);
-    }
-  }
-
-  return !m_faces.isEmpty() && !m_faces[0].mips.isEmpty();
-}