Retrieve the 4x4 texture coordinate transform matrix associated with the texture image set by
the most recent call to updateTexImage.
This transform matrix maps 2D homogeneous texture coordinates of the form (s, t, 0, 1) with s
and t in the inclusive range [0, 1] to the texture coordinate that should be used to sample
that location from the texture. Sampling the texture outside of the range of this transform
is undefined.
The matrix is stored in column-major order so that it may be passed directly to OpenGL ES via
the glLoadMatrixf or glUniformMatrix4fv functions.
\param st A ASurfaceTexture reference acquired with ASurfaceTexture_fromSurfaceTexture()
\param mtx the array into which the 4x4 matrix will be stored. The array must have exactly
16 elements.
Retrieve the 4x4 texture coordinate transform matrix associated with the texture image set by the most recent call to updateTexImage.
This transform matrix maps 2D homogeneous texture coordinates of the form (s, t, 0, 1) with s and t in the inclusive range [0, 1] to the texture coordinate that should be used to sample that location from the texture. Sampling the texture outside of the range of this transform is undefined.
The matrix is stored in column-major order so that it may be passed directly to OpenGL ES via the glLoadMatrixf or glUniformMatrix4fv functions.
\param st A ASurfaceTexture reference acquired with ASurfaceTexture_fromSurfaceTexture() \param mtx the array into which the 4x4 matrix will be stored. The array must have exactly 16 elements.