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Commit ee9f7b8a authored by Trevor Black's avatar Trevor Black Committed by Automerger Merge Worker
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Merge changes from topic... 

Merge changes from topic "revert-2382753-revert-2208281-opengl-matrix-VRTQUTHPDK-IGVJUILFUF" am: 0a84b517 am: 46de3c9e

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2387012



Change-Id: I5ca4bf49df04c4461d506fff3995cba67930d14b
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents b4fae712 46de3c9e

core/api/current.txt

+2 −1
Original line number Diff line number Diff line
@@ -30770,7 +30770,8 @@ package android.opengl { 
    method public static void scaleM(float[], int, float, float, float);

    method public static void setIdentityM(float[], int);

    method public static void setLookAtM(float[], int, float, float, float, float, float, float, float, float, float);

    method public static void setRotateEulerM(float[], int, float, float, float);

    method @Deprecated public static void setRotateEulerM(float[], int, float, float, float);

    method public static void setRotateEulerM2(@NonNull float[], int, float, float, float);

    method public static void setRotateM(float[], int, float, float, float, float);

    method public static void translateM(float[], int, float[], int, float, float, float);

    method public static void translateM(float[], int, float, float, float);

opengl/java/android/opengl/Matrix.java

+66 −1
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 


package android.opengl;



import androidx.annotation.NonNull;



/**

 * Matrix math utilities. These methods operate on OpenGL ES format

 * matrices and vectors stored in float arrays.
@@ -807,9 +809,14 @@ public class Matrix { 
     * @param rm returns the result

     * @param rmOffset index into rm where the result matrix starts

     * @param x angle of rotation, in degrees

     * @param y angle of rotation, in degrees

     * @param y is broken, do not use

     * @param z angle of rotation, in degrees

     *

     * @deprecated This method is incorrect around the y axis. This method is

     *             deprecated and replaced (below) by setRotateEulerM2 which

     *             behaves correctly

     */

    @Deprecated

    public static void setRotateEulerM(float[] rm, int rmOffset,

            float x, float y, float z) {

        x *= (float) (Math.PI / 180.0f);
@@ -845,6 +852,64 @@ public class Matrix { 
        rm[rmOffset + 15] =  1.0f;

    }



    /**

     * Converts Euler angles to a rotation matrix.

     *

     * @param rm returns the result

     * @param rmOffset index into rm where the result matrix starts

     * @param x angle of rotation, in degrees

     * @param y angle of rotation, in degrees

     * @param z angle of rotation, in degrees

     *

     * @throws IllegalArgumentException if rm is null;

     * or if rmOffset + 16 > rm.length;

     * rmOffset < 0

     */

    public static void setRotateEulerM2(@NonNull float[] rm, int rmOffset,

            float x, float y, float z) {

        if (rm == null) {

            throw new IllegalArgumentException("rm == null");

        }

        if (rmOffset < 0) {

            throw new IllegalArgumentException("rmOffset < 0");

        }

        if (rm.length < rmOffset + 16) {

            throw new IllegalArgumentException("rm.length < rmOffset + 16");

        }



        x *= (float) (Math.PI / 180.0f);

        y *= (float) (Math.PI / 180.0f);

        z *= (float) (Math.PI / 180.0f);

        float cx = (float) Math.cos(x);

        float sx = (float) Math.sin(x);

        float cy = (float) Math.cos(y);

        float sy = (float) Math.sin(y);

        float cz = (float) Math.cos(z);

        float sz = (float) Math.sin(z);

        float cxsy = cx * sy;

        float sxsy = sx * sy;



        rm[rmOffset + 0]  =  cy * cz;

        rm[rmOffset + 1]  = -cy * sz;

        rm[rmOffset + 2]  =  sy;

        rm[rmOffset + 3]  =  0.0f;



        rm[rmOffset + 4]  =  sxsy * cz + cx * sz;

        rm[rmOffset + 5]  = -sxsy * sz + cx * cz;

        rm[rmOffset + 6]  = -sx * cy;

        rm[rmOffset + 7]  =  0.0f;



        rm[rmOffset + 8]  = -cxsy * cz + sx * sz;

        rm[rmOffset + 9]  =  cxsy * sz + sx * cz;

        rm[rmOffset + 10] =  cx * cy;

        rm[rmOffset + 11] =  0.0f;



        rm[rmOffset + 12] =  0.0f;

        rm[rmOffset + 13] =  0.0f;

        rm[rmOffset + 14] =  0.0f;

        rm[rmOffset + 15] =  1.0f;

    }



    /**

     * Defines a viewing transformation in terms of an eye point, a center of

     * view, and an up vector.