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Commit 41030da1 authored by Romain Guy's avatar Romain Guy
Browse files

Add a getNativeMatrix() API. 

This API can be used by WebView to apply the appropriate transform
on its rendering.

Change-Id: I79aa39a29805f462fb08226370328815e74bdc52
parent 2b67ce72

core/java/android/view/GLES20Canvas.java

+7 −0
Original line number Diff line number Diff line
@@ -319,6 +319,13 @@ class GLES20Canvas extends HardwareCanvas { 
    

    private native void nSetMatrix(int renderer, int matrix);



    @Override

    public int getNativeMatrix() {

        return nGetMatrix(mRenderer);

    }



    private native int nGetMatrix(int renderer);    



    @Override

    public void getMatrix(Matrix matrix) {

        nGetMatrix(mRenderer, matrix.native_instance);

core/jni/android_view_GLES20Canvas.cpp

+6 −0
Original line number Diff line number Diff line
@@ -218,6 +218,11 @@ static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject canvas, 
    renderer->setMatrix(matrix);

}



static const float* android_view_GLES20Canvas_getNativeMatrix(JNIEnv* env,

        jobject canvas, OpenGLRenderer* renderer) {

    return renderer->getMatrix();

}



static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject canvas,

        OpenGLRenderer* renderer, SkMatrix* matrix) {

    renderer->getMatrix(matrix);
@@ -468,6 +473,7 @@ static JNINativeMethod gMethods[] = { 
    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },



    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },

    { "nGetMatrix",         "(I)I",            (void*) android_view_GLES20Canvas_getNativeMatrix },

    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },

    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },

graphics/java/android/graphics/Canvas.java

+10 −0
Original line number Diff line number Diff line
@@ -448,6 +448,16 @@ public class Canvas { 
        native_getCTM(mNativeCanvas, ctm.native_instance);

    }



    /**

     * Returns a pointer to an internal 4x4 native matrix. The returned

     * pointer is a pointer to an array of 16 floats.

     * 

     * @hide

     */

    public int getNativeMatrix() {

        return 0;

    }

    

    /**

     * Return a new matrix with a copy of the canvas' current transformation

     * matrix.

libs/hwui/OpenGLRenderer.cpp

+4 −0
Original line number Diff line number Diff line
@@ -584,6 +584,10 @@ void OpenGLRenderer::setMatrix(SkMatrix* matrix) { 
    mSnapshot->transform->load(*matrix);

}



const float* OpenGLRenderer::getMatrix() const {

    return &mSnapshot->transform->data[0];

}



void OpenGLRenderer::getMatrix(SkMatrix* matrix) {

    mSnapshot->transform->copyTo(*matrix);

}

libs/hwui/OpenGLRenderer.h

+1 −0
Original line number Diff line number Diff line
@@ -87,6 +87,7 @@ public: 
    virtual void rotate(float degrees);

    virtual void scale(float sx, float sy);



    const float* getMatrix() const;

    void getMatrix(SkMatrix* matrix);

    virtual void setMatrix(SkMatrix* matrix);

    virtual void concatMatrix(SkMatrix* matrix);