diff options
Diffstat (limited to 'src/cairo-beos-surface.cpp')
| -rw-r--r-- | src/cairo-beos-surface.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/cairo-beos-surface.cpp b/src/cairo-beos-surface.cpp index d9c3a953..03abd11b 100644 --- a/src/cairo-beos-surface.cpp +++ b/src/cairo-beos-surface.cpp @@ -567,6 +567,17 @@ _cairo_beos_fill_rectangles (void *abstract_surface, if (mode == B_OP_ALPHA && be_color.alpha == 0xFF) mode = B_OP_COPY; + // For CAIRO_OPERATOR_SOURCE, cairo expects us to use the premultiplied + // color info. This is only relevant when drawing into an rgb24 buffer + // (as for others, we can convert when asked for the image) + if (mode == B_OP_COPY && + (!surface->bitmap || surface->bitmap->ColorSpace() != B_RGBA32)) + { + be_color.red = premultiply(be_color.red, be_color.alpha); + be_color.green = premultiply(be_color.green, be_color.alpha); + be_color.blue = premultiply(be_color.blue, be_color.alpha); + } + surface->view->PushState(); surface->view->SetDrawingMode(mode); |