1 files changed, 101 insertions, 0 deletions
diff --git a/client/windows/red_pixmap_cairo.cpp b/client/windows/red_pixmap_cairo.cpp
new file mode 100644
index 00000000..0b3073c4
--- /dev/null
+++ b/client/windows/red_pixmap_cairo.cpp
@@ -0,0 +1,101 @@
+/*
+   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 "red_pixmap_cairo.h"
+#include "red_pixmap.h"
+#include "debug.h"
+#include "utils.h"
+#include "pixels_source_p.h"
+#include "platform_utils.h"
+
+struct RedPixmap_p {
+    PixelsSource_p pixels_source_p;
+    HBITMAP prev_bitmap;
+};
+
+static inline int format_to_bpp(RedPixmap::Format format)
+{
+    return ((format == RedPixmap::A1) ? 1 : 32);
+}
+
+RedPixmapCairo::RedPixmapCairo(int width, int height, RedPixmap::Format format, bool top_bottom,
+                               rgb32_t* pallet, RedWindow *win)
+    : RedPixmap(width, height, format, top_bottom, pallet)
+{
+    ASSERT(format == RedPixmap::ARGB32 || format == RedPixmap::RGB32 || format == RedPixmap::A1);
+    ASSERT(sizeof(RedPixmap_p) <= PIXELES_SOURCE_OPAQUE_SIZE);
+
+    struct {
+        BITMAPINFO inf;
+        RGBQUAD palette[255];
+    } bitmap_info;
+
+    memset(&bitmap_info, 0, sizeof(bitmap_info));
+    bitmap_info.inf.bmiHeader.biSize = sizeof(bitmap_info.inf.bmiHeader);
+    bitmap_info.inf.bmiHeader.biWidth = _width;
+    bitmap_info.inf.bmiHeader.biHeight = top_bottom ? -_height : _height;
+
+/*#ifdef USE_OGL
+    // -----------------------------------------------------------------------------
+    // ensure valid access to additional stride.
+    // apparently glReadPixels validate ((ptr of last line) + GL_PACK_ROW_LENGTH + 1).
+    // seen on "ATI Radeon HD 2400 PRO" "2.0.6479 Release"
+    if (top_bottom) {
+        bitmap_info.inf.bmiHeader.biHeight--;
+    } else {
+        bitmap_info.inf.bmiHeader.biHeight++;
+    }
+    //------------------------------------------------------------------------------
+#endif*/
+
+    bitmap_info.inf.bmiHeader.biPlanes = 1;
+    bitmap_info.inf.bmiHeader.biBitCount = format_to_bpp(format);
+    bitmap_info.inf.bmiHeader.biCompression = BI_RGB;
+    switch (format) {
+    case RedPixmap::A1:
+        for (int i = 0; i < (1 << format_to_bpp(format)); i++) {
+            bitmap_info.inf.bmiColors[i].rgbRed = rgb32_get_red(pallet[i]);
+            bitmap_info.inf.bmiColors[i].rgbGreen = rgb32_get_green(pallet[i]);
+            bitmap_info.inf.bmiColors[i].rgbBlue = rgb32_get_blue(pallet[i]);
+        }
+        break;
+    }
+    AutoDC dc(create_compatible_dc());
+    AutoGDIObject bitmap(CreateDIBSection(dc.get(), &bitmap_info.inf, 0,
+                                          (VOID **)&_data, NULL, 0));
+    if (!bitmap.valid()) {
+        THROW("create compatible bitmap failed");
+    }
+/*#ifdef USE_OGL
+    SetWindowOrgEx(dc.get(), 0, -1, NULL); // compensate for one pad line
+#endif*/
+    ((RedPixmap_p*)get_opaque())->prev_bitmap = (HBITMAP)SelectObject(dc.get(), bitmap.release());
+    ((RedPixmap_p*)get_opaque())->pixels_source_p.dc = dc.release();
+}
+
+RedPixmapCairo::~RedPixmapCairo()
+{
+    HDC dc = ((RedPixmap_p*)get_opaque())->pixels_source_p.dc;
+    if (dc) {
+        HBITMAP prev_bitmap = ((RedPixmap_p*)get_opaque())->prev_bitmap;
+        HBITMAP bitmap = (HBITMAP)SelectObject(dc, prev_bitmap);
+        DeleteObject(bitmap);
+        DeleteDC(dc);
+    }
+}
+