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-rw-r--r--src/yuzu/util/util.cpp77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/yuzu/util/util.cpp b/src/yuzu/util/util.cpp
index 5c3e4589e..61cf00176 100644
--- a/src/yuzu/util/util.cpp
+++ b/src/yuzu/util/util.cpp
@@ -5,6 +5,10 @@
#include <cmath>
#include <QPainter>
#include "yuzu/util/util.h"
+#ifdef _WIN32
+#include <windows.h>
+#include "common/fs/file.h"
+#endif
QFont GetMonospaceFont() {
QFont font(QStringLiteral("monospace"));
@@ -37,3 +41,76 @@ QPixmap CreateCirclePixmapFromColor(const QColor& color) {
painter.drawEllipse({circle_pixmap.width() / 2.0, circle_pixmap.height() / 2.0}, 7.0, 7.0);
return circle_pixmap;
}
+
+bool SaveIconToFile(const std::string_view path, const QImage& image) {
+#if defined(WIN32)
+#pragma pack(push, 2)
+ struct IconDir {
+ WORD id_reserved;
+ WORD id_type;
+ WORD id_count;
+ };
+
+ struct IconDirEntry {
+ BYTE width;
+ BYTE height;
+ BYTE color_count;
+ BYTE reserved;
+ WORD planes;
+ WORD bit_count;
+ DWORD bytes_in_res;
+ DWORD image_offset;
+ };
+#pragma pack(pop)
+
+ QImage source_image = image.convertToFormat(QImage::Format_RGB32);
+ constexpr int bytes_per_pixel = 4;
+ const int image_size = source_image.width() * source_image.height() * bytes_per_pixel;
+
+ BITMAPINFOHEADER info_header{};
+ info_header.biSize = sizeof(BITMAPINFOHEADER), info_header.biWidth = source_image.width(),
+ info_header.biHeight = source_image.height() * 2, info_header.biPlanes = 1,
+ info_header.biBitCount = bytes_per_pixel * 8, info_header.biCompression = BI_RGB;
+
+ const IconDir icon_dir{.id_reserved = 0, .id_type = 1, .id_count = 1};
+ const IconDirEntry icon_entry{.width = static_cast<BYTE>(source_image.width()),
+ .height = static_cast<BYTE>(source_image.height() * 2),
+ .color_count = 0,
+ .reserved = 0,
+ .planes = 1,
+ .bit_count = bytes_per_pixel * 8,
+ .bytes_in_res =
+ static_cast<DWORD>(sizeof(BITMAPINFOHEADER) + image_size),
+ .image_offset = sizeof(IconDir) + sizeof(IconDirEntry)};
+
+ Common::FS::IOFile icon_file(path, Common::FS::FileAccessMode::Write,
+ Common::FS::FileType::BinaryFile);
+ if (!icon_file.IsOpen()) {
+ return false;
+ }
+
+ if (!icon_file.Write(icon_dir)) {
+ return false;
+ }
+ if (!icon_file.Write(icon_entry)) {
+ return false;
+ }
+ if (!icon_file.Write(info_header)) {
+ return false;
+ }
+
+ for (int y = 0; y < image.height(); y++) {
+ const auto* line = source_image.scanLine(source_image.height() - 1 - y);
+ std::vector<u8> line_data(source_image.width() * bytes_per_pixel);
+ std::memcpy(line_data.data(), line, line_data.size());
+ if (!icon_file.Write(line_data)) {
+ return false;
+ }
+ }
+ icon_file.Close();
+
+ return true;
+#else
+ return false;
+#endif
+}