diff options
Diffstat (limited to 'include/hardware/hwcomposer.h')
| -rw-r--r-- | include/hardware/hwcomposer.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/hardware/hwcomposer.h b/include/hardware/hwcomposer.h index 0fa3512..a17f3e4 100644 --- a/include/hardware/hwcomposer.h +++ b/include/hardware/hwcomposer.h @@ -287,6 +287,11 @@ typedef struct hwc_composer_device { * entire composition has been handled by SurfaceFlinger with OpenGL ES. * In this case, (*set)() behaves just like eglSwapBuffers(). * + * IMPORTANT NOTE: there is an implicit layer containing opaque black + * pixels behind all the layers in the list. + * It is the responsibility of the hwcomposer module to make + * sure black pixels are output (or blended from). + * * returns: 0 on success. An negative error code on error: * HWC_EGL_ERROR: eglGetError() will provide the proper error code * Another code for non EGL errors. |