fresh start

1 files changed, 151 insertions, 0 deletions

diff --git a/client/windows/platform_utils.cpp b/client/windows/platform_utils.cpp
new file mode 100644
index 00000000..6b9049a0
--- /dev/null
+++ b/client/windows/platform_utils.cpp
@@ -0,0 +1,151 @@
+/*
+   Copyright (C) 2009 Red Hat, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "common.h"
+#include <map>
+#include "platform_utils.h"
+#include "utils.h"
+#include "threads.h"
+
+void string_vprintf(std::string& str, const char* format, va_list ap)
+{
+    int buf_size = 256;
+    for (;;) {
+        AutoArray<char> buf(new char[buf_size]);
+        int r = vsnprintf_s(buf.get(), buf_size, buf_size - 1, format, ap);
+        if (r != -1) {
+            str = buf.get();
+            return;
+        }
+        buf_size *= 2;
+    }
+}
+
+void wstring_vprintf(std::wstring& str, const wchar_t* format, va_list ap)
+{
+    int buf_size = 256;
+    for (;;) {
+        AutoArray<wchar_t> buf(new wchar_t[buf_size]);
+        int r = vswprintf(buf.get(), buf_size, format, ap);
+        if (r != -1) {
+            str = buf.get();
+            return;
+        }
+        buf_size *= 2;
+    }
+}
+
+HDC create_compatible_dc()
+{
+    HDC dc = CreateCompatibleDC(NULL);
+    if (!dc) {
+        THROW("create compatible DC failed");
+    }
+    return dc;
+}
+
+HBITMAP get_bitmap_res(int id)
+{
+    HBITMAP bitmap = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(id));
+    if (!bitmap) {
+        THROW("get bitmpa #%d failed", id);
+    }
+    return bitmap;
+}
+
+HBITMAP get_alpha_bitmap_res(int id)
+{
+    AutoGDIObject bitmap(LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(id), IMAGE_BITMAP, 0, 0,
+                                   LR_DEFAULTCOLOR | LR_CREATEDIBSECTION | LR_SHARED));
+    if (!bitmap.valid()) {
+        THROW("get bitmpa #%d failed", id);
+    }
+
+    BITMAP src_info;
+    GetObject(bitmap.get(), sizeof(src_info), &src_info);
+    if (src_info.bmBitsPixel != 32 || src_info.bmPlanes != 1) {
+        THROW("invalid format #%d ", id);
+    }
+
+    LONG src_size = src_info.bmHeight * src_info.bmWidthBytes;
+    AutoArray<uint8_t> src_pixels(new uint8_t[src_size]);
+    LONG ncopy = GetBitmapBits((HBITMAP)bitmap.get(), src_size, src_pixels.get());
+    if (ncopy != src_size) {
+        THROW("get vitmap bits failed, %u", GetLastError());
+    }
+
+    AutoDC auto_dc(create_compatible_dc());
+    BITMAPINFO dest_info;
+    uint8_t *dest;
+    dest_info.bmiHeader.biSize = sizeof(dest_info.bmiHeader);
+    dest_info.bmiHeader.biWidth = src_info.bmWidth;
+    dest_info.bmiHeader.biHeight = -src_info.bmHeight;
+    dest_info.bmiHeader.biPlanes = 1;
+    dest_info.bmiHeader.biBitCount = 32;
+    dest_info.bmiHeader.biCompression = BI_RGB;
+    dest_info.bmiHeader.biSizeImage = 0;
+    dest_info.bmiHeader.biXPelsPerMeter = dest_info.bmiHeader.biYPelsPerMeter = 0;
+    dest_info.bmiHeader.biClrUsed = 0;
+    dest_info.bmiHeader.biClrImportant = 0;
+
+    HBITMAP ret = CreateDIBSection(auto_dc.get(), &dest_info, 0, (VOID **)&dest, NULL, 0);
+    if (!ret) {
+        THROW("create bitmap failed, %u", GetLastError());
+    }
+
+    uint8_t* src_line = src_pixels.get();
+    for (int i = 0; i < src_info.bmHeight; i++, src_line += src_info.bmWidthBytes) {
+        uint8_t* src = src_line;
+        for (int j = 0; j < src_info.bmWidth; j++) {
+            dest[3] = src[3];
+            double alpha = (double)dest[3] / 0xff;
+            dest[2] = (uint8_t)(alpha * src[2]);
+            dest[1] = (uint8_t)(alpha * src[1]);
+            dest[0] = (uint8_t)(alpha * src[0]);
+            src += 4;
+            dest += 4;
+        }
+    }
+    return ret;
+}
+
+static std::map<int, const char*> errors_map;
+static Mutex errors_map_mutex;
+
+const char* sys_err_to_str(int error)
+{
+    Lock lock(errors_map_mutex);
+    if (errors_map.find(error) == errors_map.end()) {
+        LPSTR msg;
+        if (!FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
+                            FORMAT_MESSAGE_IGNORE_INSERTS, NULL, error,
+                            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                            (LPSTR)&msg, 0, NULL)) {
+            const int BUF_SIZE = 20;
+            msg = new char[BUF_SIZE];
+            _snprintf(msg, BUF_SIZE, "errno %d", error);
+        } else {
+            char *new_line;
+            if ((new_line = strrchr(msg, '\r'))) {
+                *new_line = 0;
+            }
+        }
+        errors_map[error] = msg;
+    }
+    return errors_map[error];
+}
+