diff options
| author | Benjamin Otte <otte@redhat.com> | 2010-06-02 18:14:28 +0200 |
|---|---|---|
| committer | Benjamin Otte <otte@redhat.com> | 2010-06-07 13:37:48 +0200 |
| commit | 19c1d8316e22fc37c7cdaf6c3e56519c06d10561 (patch) | |
| tree | 3e9e2ccabf96eadecdb29f2577312ebaabf5d7c2 | |
| parent | 1f249064cc5c19a39ffe0faaa8825c8f8b6a2175 (diff) | |
gl: Special case blend mode for CAIRO_CONTENT_COLOR
This ensures that alpha stays at 1 for RGB in all cases.
| -rw-r--r-- | src/cairo-gl-composite.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cairo-gl-composite.c b/src/cairo-gl-composite.c index 04701576..bc222b7d 100644 --- a/src/cairo-gl-composite.c +++ b/src/cairo-gl-composite.c @@ -882,6 +882,8 @@ _cairo_gl_set_operator (cairo_gl_context_t *ctx, if (ctx->current_target->base.content == CAIRO_CONTENT_ALPHA) { glBlendFuncSeparate (GL_ZERO, GL_ZERO, src_factor, dst_factor); + } else if (ctx->current_target->base.content == CAIRO_CONTENT_COLOR) { + glBlendFuncSeparate (src_factor, dst_factor, GL_ONE, GL_ONE); } else { glBlendFunc (src_factor, dst_factor); } |