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| author | agl@chromium.org <agl@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-05-26 19:41:26 +0000 |
|---|---|---|
| committer | agl@chromium.org <agl@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-05-26 19:41:26 +0000 |
| commit | 9c035022e847ba18bb51f63212f9cb86c9cf27c0 (patch) | |
| tree | ded6ff68eafcc976786a3f4c20fff45e4dd33c05 /chrome | |
| parent | ae7b7eb779ea129e02999f54019029ba7449900c (diff) | |
| download | chromium_src-9c035022e847ba18bb51f63212f9cb86c9cf27c0.zip chromium_src-9c035022e847ba18bb51f63212f9cb86c9cf27c0.tar.gz chromium_src-9c035022e847ba18bb51f63212f9cb86c9cf27c0.tar.bz2 | |
Linux: implement 16-bit visuals without Xrender.
Some VNC users still have this setup.
BUG=10616
http://codereview.chromium.org/113848
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16889 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome')
| -rw-r--r-- | chrome/browser/renderer_host/backing_store_x.cc | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/chrome/browser/renderer_host/backing_store_x.cc b/chrome/browser/renderer_host/backing_store_x.cc index dc1beaf..4ada255 100644 --- a/chrome/browser/renderer_host/backing_store_x.cc +++ b/chrome/browser/renderer_host/backing_store_x.cc @@ -136,6 +136,36 @@ void BackingStore::PaintRectWithoutXrender(TransportDIB* bitmap, width, height); free(bitmap24); + } else if (pixmap_bpp_ == 16) { + // Some folks have VNC setups which still use 16-bit visuals and VNC + // doesn't include Xrender. + + uint16_t* bitmap16 = static_cast<uint16_t*>(malloc(2 * width * height)); + uint16_t* const orig_bitmap16 = bitmap16; + const uint32_t* bitmap_in = static_cast<const uint32_t*>(bitmap->memory()); + for (int y = 0; y < height; ++y) { + for (int x = 0; x < width; ++x) { + const uint32_t pixel = *(bitmap_in++); + uint16_t out_pixel = (pixel >> 8) & 0xf800 | + (pixel >> 5) & 0x07e0 | + (pixel >> 3) & 0x001f; + *(bitmap16++) = out_pixel; + } + } + + image.depth = visual_depth_; + image.bits_per_pixel = 16; + image.bytes_per_line = width * 2; + image.data = reinterpret_cast<char*>(orig_bitmap16); + + image.red_mask = 0xf800; + image.green_mask = 0x07e0; + image.blue_mask = 0x001f; + + XPutImage(display_, pixmap, static_cast<GC>(pixmap_gc_), &image, + 0, 0 /* source x, y */, 0, 0 /* dest x, y */, + width, height); + free(orig_bitmap16); } else { CHECK(false) << "Sorry, we don't support your visual depth without " "Xrender support (depth:" << visual_depth_ |