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Merge "Document that getTransformMatrix can inset" into rvc-dev am: 9c52543162

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Change-Id: I7d30c160a9adf1f44a4d41ad1311535fb5286256
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John Reck
2020-04-17 19:37:14 +00:00
committed by Automerger Merge Worker
parent e9e4d985e1 9c52543162
commit ec40808241
1 changed files with 5 additions and 0 deletions
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5
graphics/java/android/graphics/SurfaceTexture.java
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@@ -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 matrix is stored in column-major order so that it may be passed directly to OpenGL ES via
* the glLoadMatrixf or glUniformMatrix4fv functions. * 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 * @param mtx the array into which the 4x4 matrix will be stored. The array must have exactly
* 16 elements. * 16 elements.
*/ */