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Commit 175ed5ba authored by Robert Carr's avatar Robert Carr
Browse files

ANativeWindow_setBuffersTransform: Allow forwarding INVERSE_DISPLAY 

For OpenGL based camera viewfinder implementations, we want to let them
read the Transform bit off the original camera API provided image and
forward it to their OpenGL surface so they can achieve the same rotation
functionality.

Bug: 74400997
Test: Manual
Change-Id: Idccd977e6d885b1b12de019faa98b564cc7baf48
parent 0d5aac13

libs/nativewindow/ANativeWindow.cpp

+4 −1
Original line number Diff line number Diff line
@@ -113,7 +113,10 @@ int32_t ANativeWindow_setBuffersTransform(ANativeWindow* window, int32_t transfo 
    constexpr int32_t kAllTransformBits =

            ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL |

            ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL |

            ANATIVEWINDOW_TRANSFORM_ROTATE_90;

            ANATIVEWINDOW_TRANSFORM_ROTATE_90 |

            // We don't expose INVERSE_DISPLAY as an NDK constant, but someone could have read it

            // from a buffer already set by Camera framework, so we allow it to be forwarded.

            NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;

    if (!window || !query(window, NATIVE_WINDOW_IS_VALID))

        return -EINVAL;

    if ((transform & ~kAllTransformBits) != 0)