diff options
| author | Simon Ser <contact@emersion.fr> | 2020-12-08 19:37:21 +0100 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2020-12-09 21:45:28 +0100 |
| commit | f91e89fd9f701781ff320f643acdb129ab4f4e55 (patch) | |
| tree | a9e2879245d4aaddbbdc9ef49e98b0db14641710 | |
| parent | be8403e73d01acafbe849d92b19dc6d95c05dde0 (diff) | |
render/gles2: query alpha size from render buffer
If we're using a render buffer, query the alpha size from it.
Closes: https://github.com/swaywm/wlroots/issues/2527
| -rw-r--r-- | render/gles2/renderer.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index bb8dab02..db313034 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -453,7 +453,12 @@ static enum wl_shm_format gles2_preferred_read_format( pop_gles2_debug(renderer); EGLint alpha_size = -1; - if (renderer->egl->config != EGL_NO_CONFIG_KHR) { + if (renderer->current_buffer != NULL) { + glBindRenderbuffer(GL_RENDERBUFFER, renderer->current_buffer->rbo); + glGetRenderbufferParameteriv(GL_RENDERBUFFER, + GL_RENDERBUFFER_ALPHA_SIZE, &alpha_size); + glBindRenderbuffer(GL_RENDERBUFFER, 0); + } else if (renderer->egl->config != EGL_NO_CONFIG_KHR) { eglGetConfigAttrib(renderer->egl->display, renderer->egl->config, EGL_ALPHA_SIZE, &alpha_size); } |