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Commit 62f8b4f3 authored by John Reck's avatar John Reck
Browse files

Document that getTransformMatrix can inset 

Bug: 152621633
Test: none, docs only change
Change-Id: I4a357affdf698c8eb70ed7abbfa828586b2da0ec
parent 85b561c3

graphics/java/android/graphics/SurfaceTexture.java

+5 −0
Original line number Diff line number Diff line
@@ -307,6 +307,11 @@ public class SurfaceTexture { 
     * The matrix is stored in column-major order so that it may be passed directly to OpenGL ES via

     * the glLoadMatrixf or glUniformMatrix4fv functions.

     *

     * If the underlying buffer has a crop associated with it, the transformation will also include

     * a slight scale to cut off a 1-texel border around the edge of the crop. This ensures that

     * when the texture is bilinear sampled that no texels outside of the buffer's valid region

     * are accessed by the GPU, avoiding any sampling artifacts when scaling.

     *

     * @param mtx the array into which the 4x4 matrix will be stored.  The array must have exactly

     *     16 elements.

     */