libs/hwui/jni/android_graphics_Matrix.cpp - platform/frameworks/base - Git at Google

 /* libs/android_runtime/android/graphics/Matrix.cpp
 **
 ** Copyright 2006, The Android Open Source Project
 **
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 **
 **     http://www.apache.org/licenses/LICENSE-2.0
 **
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 */

 #include "GraphicsJNI.h"
 #include "Matrix.h"
 #include "SkMatrix.h"

 namespace android {

 static_assert(sizeof(SkMatrix) == 40, "Unexpected sizeof(SkMatrix), "
         "update size in Matrix.java#NATIVE_ALLOCATION_SIZE and here");
 static_assert(SK_SCALAR_IS_FLOAT, "SK_SCALAR_IS_FLOAT is false, "
         "only float scalar is supported");

 class SkMatrixGlue {
 public:

     // ---------------- Regular JNI -----------------------------

     static void finalizer(jlong objHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         delete obj;
     }

     static jlong getNativeFinalizer(JNIEnv* env, jobject clazz) {
         return static_cast<jlong>(reinterpret_cast<uintptr_t>(&finalizer));
     }

     static jlong create(JNIEnv* env, jobject clazz, jlong srcHandle) {
         const SkMatrix* src = reinterpret_cast<SkMatrix*>(srcHandle);
         SkMatrix* obj = new SkMatrix();
         if (src)
             *obj = *src;
         else
             obj->reset();
         return reinterpret_cast<jlong>(obj);
     }

     // ---------------- @FastNative -----------------------------

     static void mapPoints(JNIEnv* env, jobject clazz, jlong matrixHandle,
             jfloatArray dst, jint dstIndex, jfloatArray src, jint srcIndex,
             jint ptCount, jboolean isPts) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         SkASSERT(ptCount >= 0);
         AutoJavaFloatArray autoSrc(env, src, srcIndex + (ptCount << 1),
                 kRO_JNIAccess);
         AutoJavaFloatArray autoDst(env, dst, dstIndex + (ptCount << 1),
                 kRW_JNIAccess);
         float* srcArray = autoSrc.ptr() + srcIndex;
         float* dstArray = autoDst.ptr() + dstIndex;
         if (isPts)
             matrix->mapPoints((SkPoint*) dstArray, (const SkPoint*) srcArray,
                     ptCount);
         else
             matrix->mapVectors((SkVector*) dstArray, (const SkVector*) srcArray,
                     ptCount);
     }

     static jboolean mapRect__RectFRectF(JNIEnv* env, jobject clazz,
             jlong matrixHandle, jobjectArray dst, jobject src) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         SkRect dst_, src_;
         GraphicsJNI::jrectf_to_rect(env, src, &src_);
         jboolean rectStaysRect = matrix->mapRect(&dst_, src_);
         GraphicsJNI::rect_to_jrectf(dst_, env, dst);
         return rectStaysRect ? JNI_TRUE : JNI_FALSE;
     }

     static jboolean setRectToRect(JNIEnv* env, jobject clazz,
             jlong matrixHandle, jobject src, jobject dst, jint stfHandle) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         SkMatrix::ScaleToFit stf = static_cast<SkMatrix::ScaleToFit>(stfHandle);
         SkRect src_;
         GraphicsJNI::jrectf_to_rect(env, src, &src_);
         SkRect dst_;
         GraphicsJNI::jrectf_to_rect(env, dst, &dst_);
         return matrix->setRectToRect(src_, dst_, stf) ? JNI_TRUE : JNI_FALSE;
     }

     static jboolean setPolyToPoly(JNIEnv* env, jobject clazz,
             jlong matrixHandle, jfloatArray jsrc, jint srcIndex,
             jfloatArray jdst, jint dstIndex, jint ptCount) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         SkASSERT(srcIndex >= 0);
         SkASSERT(dstIndex >= 0);
         SkASSERT((unsigned )ptCount <= 4);

         AutoJavaFloatArray autoSrc(env, jsrc, srcIndex + (ptCount << 1),
                 kRO_JNIAccess);
         AutoJavaFloatArray autoDst(env, jdst, dstIndex + (ptCount << 1),
                 kRW_JNIAccess);
         float* src = autoSrc.ptr() + srcIndex;
         float* dst = autoDst.ptr() + dstIndex;
         bool result;

         result = matrix->setPolyToPoly((const SkPoint*) src,
                 (const SkPoint*) dst, ptCount);
         return result ? JNI_TRUE : JNI_FALSE;
     }

     static void getValues(JNIEnv* env, jobject clazz, jlong matrixHandle,
             jfloatArray values) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         AutoJavaFloatArray autoValues(env, values, 9, kRW_JNIAccess);
         float* dst = autoValues.ptr();
         for (int i = 0; i < 9; i++) {
             dst[i] = matrix->get(i);
         }
     }

     static void setValues(JNIEnv* env, jobject clazz, jlong matrixHandle,
             jfloatArray values) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         AutoJavaFloatArray autoValues(env, values, 9, kRO_JNIAccess);
         const float* src = autoValues.ptr();

         for (int i = 0; i < 9; i++) {
             matrix->set(i, src[i]);
         }
     }

     // ---------------- @CriticalNative -----------------------------

     static jboolean isIdentity(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         return obj->isIdentity() ? JNI_TRUE : JNI_FALSE;
     }

     static jboolean isAffine(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         return obj->asAffine(NULL) ? JNI_TRUE : JNI_FALSE;
     }

     static jboolean rectStaysRect(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         return obj->rectStaysRect() ? JNI_TRUE : JNI_FALSE;
     }

     static void reset(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->reset();
     }

     static void set(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong otherHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
         *obj = *other;
     }

     static void setTranslate(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat dx, jfloat dy) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setTranslate(dx, dy);
     }

     static void setScale__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setScale(sx, sy, px, py);
     }

     static void setScale__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setScale(sx, sy);
     }

     static void setRotate__FFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setRotate(degrees, px, py);
     }

     static void setRotate__F(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setRotate(degrees);
     }

     static void setSinCos__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sinValue,
             jfloat cosValue, jfloat px, jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setSinCos(sinValue, cosValue, px, py);
     }

     static void setSinCos__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sinValue,
             jfloat cosValue) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setSinCos(sinValue, cosValue);
     }

     static void setSkew__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setSkew(kx, ky, px, py);
     }

     static void setSkew__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->setSkew(kx, ky);
     }

     static void setConcat(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong aHandle, jlong bHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         SkMatrix* a = reinterpret_cast<SkMatrix*>(aHandle);
         SkMatrix* b = reinterpret_cast<SkMatrix*>(bHandle);
         obj->setConcat(*a, *b);
     }

     static void preTranslate(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat dx, jfloat dy) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preTranslate(dx, dy);
     }

     static void preScale__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preScale(sx, sy, px, py);
     }

     static void preScale__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preScale(sx, sy);
     }

     static void preRotate__FFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preRotate(degrees, px, py);
     }

     static void preRotate__F(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preRotate(degrees);
     }

     static void preSkew__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preSkew(kx, ky, px, py);
     }

     static void preSkew__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->preSkew(kx, ky);
     }

     static void preConcat(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong otherHandle) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
         obj->preConcat(*other);
     }

     static void postTranslate(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat dx, jfloat dy) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->postTranslate(dx, dy);
     }

     static void postScale__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy,
             jfloat px, jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->postScale(sx, sy, px, py);
     }

     static void postScale__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->postScale(sx, sy);
     }

     static void postRotate__FFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->postRotate(degrees, px, py);
     }

     static void postRotate__F(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->postRotate(degrees);
     }

     static void postSkew__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky, jfloat px,
             jfloat py) {
         SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
         obj->postSkew(kx, ky, px, py);
     }

     static void postSkew__FF(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jfloat kx, jfloat ky) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         matrix->postSkew(kx, ky);
     }

     static void postConcat(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jlong otherHandle) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
         matrix->postConcat(*other);
     }

     static jboolean invert(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jlong inverseHandle) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         SkMatrix* inverse = reinterpret_cast<SkMatrix*>(inverseHandle);
         return matrix->invert(inverse);
     }

     static jfloat mapRadius(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jfloat radius) {
         SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
         float result;
         result = SkScalarToFloat(matrix->mapRadius(radius));
         return static_cast<jfloat>(result);
     }

     static jboolean equals(CRITICAL_JNI_PARAMS_COMMA jlong aHandle, jlong bHandle) {
         const SkMatrix* a = reinterpret_cast<SkMatrix*>(aHandle);
         const SkMatrix* b = reinterpret_cast<SkMatrix*>(bHandle);
         return *a == *b;
     }
 };

 static const JNINativeMethod methods[] = {
     {"nGetNativeFinalizer", "()J", (void*) SkMatrixGlue::getNativeFinalizer},
     {"nCreate","(J)J", (void*) SkMatrixGlue::create},

     // ------- @FastNative below here ---------------
     {"nMapPoints","(J[FI[FIIZ)V", (void*) SkMatrixGlue::mapPoints},
     {"nMapRect","(JLandroid/graphics/RectF;Landroid/graphics/RectF;)Z",
             (void*) SkMatrixGlue::mapRect__RectFRectF},
     {"nSetRectToRect","(JLandroid/graphics/RectF;Landroid/graphics/RectF;I)Z",
             (void*) SkMatrixGlue::setRectToRect},
     {"nSetPolyToPoly","(J[FI[FII)Z", (void*) SkMatrixGlue::setPolyToPoly},
     {"nGetValues","(J[F)V", (void*) SkMatrixGlue::getValues},
     {"nSetValues","(J[F)V", (void*) SkMatrixGlue::setValues},

     // ------- @CriticalNative below here ---------------
     {"nIsIdentity","(J)Z", (void*) SkMatrixGlue::isIdentity},
     {"nIsAffine","(J)Z", (void*) SkMatrixGlue::isAffine},
     {"nRectStaysRect","(J)Z", (void*) SkMatrixGlue::rectStaysRect},
     {"nReset","(J)V", (void*) SkMatrixGlue::reset},
     {"nSet","(JJ)V", (void*) SkMatrixGlue::set},
     {"nSetTranslate","(JFF)V", (void*) SkMatrixGlue::setTranslate},
     {"nSetScale","(JFFFF)V", (void*) SkMatrixGlue::setScale__FFFF},
     {"nSetScale","(JFF)V", (void*) SkMatrixGlue::setScale__FF},
     {"nSetRotate","(JFFF)V", (void*) SkMatrixGlue::setRotate__FFF},
     {"nSetRotate","(JF)V", (void*) SkMatrixGlue::setRotate__F},
     {"nSetSinCos","(JFFFF)V", (void*) SkMatrixGlue::setSinCos__FFFF},
     {"nSetSinCos","(JFF)V", (void*) SkMatrixGlue::setSinCos__FF},
     {"nSetSkew","(JFFFF)V", (void*) SkMatrixGlue::setSkew__FFFF},
     {"nSetSkew","(JFF)V", (void*) SkMatrixGlue::setSkew__FF},
     {"nSetConcat","(JJJ)V", (void*) SkMatrixGlue::setConcat},
     {"nPreTranslate","(JFF)V", (void*) SkMatrixGlue::preTranslate},
     {"nPreScale","(JFFFF)V", (void*) SkMatrixGlue::preScale__FFFF},
     {"nPreScale","(JFF)V", (void*) SkMatrixGlue::preScale__FF},
     {"nPreRotate","(JFFF)V", (void*) SkMatrixGlue::preRotate__FFF},
     {"nPreRotate","(JF)V", (void*) SkMatrixGlue::preRotate__F},
     {"nPreSkew","(JFFFF)V", (void*) SkMatrixGlue::preSkew__FFFF},
     {"nPreSkew","(JFF)V", (void*) SkMatrixGlue::preSkew__FF},
     {"nPreConcat","(JJ)V", (void*) SkMatrixGlue::preConcat},
     {"nPostTranslate","(JFF)V", (void*) SkMatrixGlue::postTranslate},
     {"nPostScale","(JFFFF)V", (void*) SkMatrixGlue::postScale__FFFF},
     {"nPostScale","(JFF)V", (void*) SkMatrixGlue::postScale__FF},
     {"nPostRotate","(JFFF)V", (void*) SkMatrixGlue::postRotate__FFF},
     {"nPostRotate","(JF)V", (void*) SkMatrixGlue::postRotate__F},
     {"nPostSkew","(JFFFF)V", (void*) SkMatrixGlue::postSkew__FFFF},
     {"nPostSkew","(JFF)V", (void*) SkMatrixGlue::postSkew__FF},
     {"nPostConcat","(JJ)V", (void*) SkMatrixGlue::postConcat},
     {"nInvert","(JJ)Z", (void*) SkMatrixGlue::invert},
     {"nMapRadius","(JF)F", (void*) SkMatrixGlue::mapRadius},
     {"nEquals", "(JJ)Z", (void*) SkMatrixGlue::equals}
 };

 static jfieldID sNativeInstanceField;

 int register_android_graphics_Matrix(JNIEnv* env) {
     int result = RegisterMethodsOrDie(env, "android/graphics/Matrix", methods, NELEM(methods));

     jclass clazz = FindClassOrDie(env, "android/graphics/Matrix");
     sNativeInstanceField = GetFieldIDOrDie(env, clazz, "native_instance", "J");

     return result;
 }

 SkMatrix* android_graphics_Matrix_getSkMatrix(JNIEnv* env, jobject matrixObj) {
     return reinterpret_cast<SkMatrix*>(env->GetLongField(matrixObj, sNativeInstanceField));
 }

 }
	/* libs/android_runtime/android/graphics/Matrix.cpp
	**
	** Copyright 2006, The Android Open Source Project
	**
	** Licensed under the Apache License, Version 2.0 (the "License");
	** you may not use this file except in compliance with the License.
	** You may obtain a copy of the License at
	**
	** http://www.apache.org/licenses/LICENSE-2.0
	**
	** Unless required by applicable law or agreed to in writing, software
	** distributed under the License is distributed on an "AS IS" BASIS,
	** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	** See the License for the specific language governing permissions and
	** limitations under the License.
	*/

	#include "GraphicsJNI.h"
	#include "Matrix.h"
	#include "SkMatrix.h"

	namespace android {

	static_assert(sizeof(SkMatrix) == 40, "Unexpected sizeof(SkMatrix), "
	"update size in Matrix.java#NATIVE_ALLOCATION_SIZE and here");
	static_assert(SK_SCALAR_IS_FLOAT, "SK_SCALAR_IS_FLOAT is false, "
	"only float scalar is supported");

	class SkMatrixGlue {
	public:

	// ---------------- Regular JNI -----------------------------

	static void finalizer(jlong objHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	delete obj;
	}

	static jlong getNativeFinalizer(JNIEnv* env, jobject clazz) {
	return static_cast<jlong>(reinterpret_cast<uintptr_t>(&finalizer));
	}

	static jlong create(JNIEnv* env, jobject clazz, jlong srcHandle) {
	const SkMatrix* src = reinterpret_cast<SkMatrix*>(srcHandle);
	SkMatrix* obj = new SkMatrix();
	if (src)
	obj = src;
	else
	obj->reset();
	return reinterpret_cast<jlong>(obj);
	}

	// ---------------- @FastNative -----------------------------

	static void mapPoints(JNIEnv* env, jobject clazz, jlong matrixHandle,
	jfloatArray dst, jint dstIndex, jfloatArray src, jint srcIndex,
	jint ptCount, jboolean isPts) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	SkASSERT(ptCount >= 0);
	AutoJavaFloatArray autoSrc(env, src, srcIndex + (ptCount << 1),
	kRO_JNIAccess);
	AutoJavaFloatArray autoDst(env, dst, dstIndex + (ptCount << 1),
	kRW_JNIAccess);
	float* srcArray = autoSrc.ptr() + srcIndex;
	float* dstArray = autoDst.ptr() + dstIndex;
	if (isPts)
	matrix->mapPoints((SkPoint) dstArray, (const SkPoint) srcArray,
	ptCount);
	else
	matrix->mapVectors((SkVector) dstArray, (const SkVector) srcArray,
	ptCount);
	}

	static jboolean mapRect__RectFRectF(JNIEnv* env, jobject clazz,
	jlong matrixHandle, jobjectArray dst, jobject src) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	SkRect dst_, src_;
	GraphicsJNI::jrectf_to_rect(env, src, &src_);
	jboolean rectStaysRect = matrix->mapRect(&dst_, src_);
	GraphicsJNI::rect_to_jrectf(dst_, env, dst);
	return rectStaysRect ? JNI_TRUE : JNI_FALSE;
	}

	static jboolean setRectToRect(JNIEnv* env, jobject clazz,
	jlong matrixHandle, jobject src, jobject dst, jint stfHandle) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	SkMatrix::ScaleToFit stf = static_cast<SkMatrix::ScaleToFit>(stfHandle);
	SkRect src_;
	GraphicsJNI::jrectf_to_rect(env, src, &src_);
	SkRect dst_;
	GraphicsJNI::jrectf_to_rect(env, dst, &dst_);
	return matrix->setRectToRect(src_, dst_, stf) ? JNI_TRUE : JNI_FALSE;
	}

	static jboolean setPolyToPoly(JNIEnv* env, jobject clazz,
	jlong matrixHandle, jfloatArray jsrc, jint srcIndex,
	jfloatArray jdst, jint dstIndex, jint ptCount) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	SkASSERT(srcIndex >= 0);
	SkASSERT(dstIndex >= 0);
	SkASSERT((unsigned )ptCount <= 4);

	AutoJavaFloatArray autoSrc(env, jsrc, srcIndex + (ptCount << 1),
	kRO_JNIAccess);
	AutoJavaFloatArray autoDst(env, jdst, dstIndex + (ptCount << 1),
	kRW_JNIAccess);
	float* src = autoSrc.ptr() + srcIndex;
	float* dst = autoDst.ptr() + dstIndex;
	bool result;

	result = matrix->setPolyToPoly((const SkPoint*) src,
	(const SkPoint*) dst, ptCount);
	return result ? JNI_TRUE : JNI_FALSE;
	}

	static void getValues(JNIEnv* env, jobject clazz, jlong matrixHandle,
	jfloatArray values) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	AutoJavaFloatArray autoValues(env, values, 9, kRW_JNIAccess);
	float* dst = autoValues.ptr();
	for (int i = 0; i < 9; i++) {
	dst[i] = matrix->get(i);
	}
	}

	static void setValues(JNIEnv* env, jobject clazz, jlong matrixHandle,
	jfloatArray values) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	AutoJavaFloatArray autoValues(env, values, 9, kRO_JNIAccess);
	const float* src = autoValues.ptr();

	for (int i = 0; i < 9; i++) {
	matrix->set(i, src[i]);
	}
	}

	// ---------------- @CriticalNative -----------------------------

	static jboolean isIdentity(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	return obj->isIdentity() ? JNI_TRUE : JNI_FALSE;
	}

	static jboolean isAffine(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	return obj->asAffine(NULL) ? JNI_TRUE : JNI_FALSE;
	}

	static jboolean rectStaysRect(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	return obj->rectStaysRect() ? JNI_TRUE : JNI_FALSE;
	}

	static void reset(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->reset();
	}

	static void set(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong otherHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
	obj = other;
	}

	static void setTranslate(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat dx, jfloat dy) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setTranslate(dx, dy);
	}

	static void setScale__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setScale(sx, sy, px, py);
	}

	static void setScale__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setScale(sx, sy);
	}

	static void setRotate__FFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setRotate(degrees, px, py);
	}

	static void setRotate__F(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setRotate(degrees);
	}

	static void setSinCos__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sinValue,
	jfloat cosValue, jfloat px, jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setSinCos(sinValue, cosValue, px, py);
	}

	static void setSinCos__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sinValue,
	jfloat cosValue) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setSinCos(sinValue, cosValue);
	}

	static void setSkew__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setSkew(kx, ky, px, py);
	}

	static void setSkew__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->setSkew(kx, ky);
	}

	static void setConcat(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong aHandle, jlong bHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	SkMatrix* a = reinterpret_cast<SkMatrix*>(aHandle);
	SkMatrix* b = reinterpret_cast<SkMatrix*>(bHandle);
	obj->setConcat(a, b);
	}

	static void preTranslate(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat dx, jfloat dy) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preTranslate(dx, dy);
	}

	static void preScale__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preScale(sx, sy, px, py);
	}

	static void preScale__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preScale(sx, sy);
	}

	static void preRotate__FFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preRotate(degrees, px, py);
	}

	static void preRotate__F(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preRotate(degrees);
	}

	static void preSkew__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preSkew(kx, ky, px, py);
	}

	static void preSkew__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->preSkew(kx, ky);
	}

	static void preConcat(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong otherHandle) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
	obj->preConcat(*other);
	}

	static void postTranslate(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat dx, jfloat dy) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->postTranslate(dx, dy);
	}

	static void postScale__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy,
	jfloat px, jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->postScale(sx, sy, px, py);
	}

	static void postScale__FF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat sx, jfloat sy) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->postScale(sx, sy);
	}

	static void postRotate__FFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->postRotate(degrees, px, py);
	}

	static void postRotate__F(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat degrees) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->postRotate(degrees);
	}

	static void postSkew__FFFF(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jfloat kx, jfloat ky, jfloat px,
	jfloat py) {
	SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
	obj->postSkew(kx, ky, px, py);
	}

	static void postSkew__FF(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jfloat kx, jfloat ky) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	matrix->postSkew(kx, ky);
	}

	static void postConcat(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jlong otherHandle) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
	matrix->postConcat(*other);
	}

	static jboolean invert(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jlong inverseHandle) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	SkMatrix* inverse = reinterpret_cast<SkMatrix*>(inverseHandle);
	return matrix->invert(inverse);
	}

	static jfloat mapRadius(CRITICAL_JNI_PARAMS_COMMA jlong matrixHandle, jfloat radius) {
	SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
	float result;
	result = SkScalarToFloat(matrix->mapRadius(radius));
	return static_cast<jfloat>(result);
	}

	static jboolean equals(CRITICAL_JNI_PARAMS_COMMA jlong aHandle, jlong bHandle) {
	const SkMatrix* a = reinterpret_cast<SkMatrix*>(aHandle);
	const SkMatrix* b = reinterpret_cast<SkMatrix*>(bHandle);
	return a == b;
	}
	};

	static const JNINativeMethod methods[] = {
	{"nGetNativeFinalizer", "()J", (void*) SkMatrixGlue::getNativeFinalizer},
	{"nCreate","(J)J", (void*) SkMatrixGlue::create},

	// ------- @FastNative below here ---------------
	{"nMapPoints","(J[FI[FIIZ)V", (void*) SkMatrixGlue::mapPoints},
	{"nMapRect","(JLandroid/graphics/RectF;Landroid/graphics/RectF;)Z",
	(void*) SkMatrixGlue::mapRect__RectFRectF},
	{"nSetRectToRect","(JLandroid/graphics/RectF;Landroid/graphics/RectF;I)Z",
	(void*) SkMatrixGlue::setRectToRect},
	{"nSetPolyToPoly","(J[FI[FII)Z", (void*) SkMatrixGlue::setPolyToPoly},
	{"nGetValues","(J[F)V", (void*) SkMatrixGlue::getValues},
	{"nSetValues","(J[F)V", (void*) SkMatrixGlue::setValues},

	// ------- @CriticalNative below here ---------------
	{"nIsIdentity","(J)Z", (void*) SkMatrixGlue::isIdentity},
	{"nIsAffine","(J)Z", (void*) SkMatrixGlue::isAffine},
	{"nRectStaysRect","(J)Z", (void*) SkMatrixGlue::rectStaysRect},
	{"nReset","(J)V", (void*) SkMatrixGlue::reset},
	{"nSet","(JJ)V", (void*) SkMatrixGlue::set},
	{"nSetTranslate","(JFF)V", (void*) SkMatrixGlue::setTranslate},
	{"nSetScale","(JFFFF)V", (void*) SkMatrixGlue::setScale__FFFF},
	{"nSetScale","(JFF)V", (void*) SkMatrixGlue::setScale__FF},
	{"nSetRotate","(JFFF)V", (void*) SkMatrixGlue::setRotate__FFF},
	{"nSetRotate","(JF)V", (void*) SkMatrixGlue::setRotate__F},
	{"nSetSinCos","(JFFFF)V", (void*) SkMatrixGlue::setSinCos__FFFF},
	{"nSetSinCos","(JFF)V", (void*) SkMatrixGlue::setSinCos__FF},
	{"nSetSkew","(JFFFF)V", (void*) SkMatrixGlue::setSkew__FFFF},
	{"nSetSkew","(JFF)V", (void*) SkMatrixGlue::setSkew__FF},
	{"nSetConcat","(JJJ)V", (void*) SkMatrixGlue::setConcat},
	{"nPreTranslate","(JFF)V", (void*) SkMatrixGlue::preTranslate},
	{"nPreScale","(JFFFF)V", (void*) SkMatrixGlue::preScale__FFFF},
	{"nPreScale","(JFF)V", (void*) SkMatrixGlue::preScale__FF},
	{"nPreRotate","(JFFF)V", (void*) SkMatrixGlue::preRotate__FFF},
	{"nPreRotate","(JF)V", (void*) SkMatrixGlue::preRotate__F},
	{"nPreSkew","(JFFFF)V", (void*) SkMatrixGlue::preSkew__FFFF},
	{"nPreSkew","(JFF)V", (void*) SkMatrixGlue::preSkew__FF},
	{"nPreConcat","(JJ)V", (void*) SkMatrixGlue::preConcat},
	{"nPostTranslate","(JFF)V", (void*) SkMatrixGlue::postTranslate},
	{"nPostScale","(JFFFF)V", (void*) SkMatrixGlue::postScale__FFFF},
	{"nPostScale","(JFF)V", (void*) SkMatrixGlue::postScale__FF},
	{"nPostRotate","(JFFF)V", (void*) SkMatrixGlue::postRotate__FFF},
	{"nPostRotate","(JF)V", (void*) SkMatrixGlue::postRotate__F},
	{"nPostSkew","(JFFFF)V", (void*) SkMatrixGlue::postSkew__FFFF},
	{"nPostSkew","(JFF)V", (void*) SkMatrixGlue::postSkew__FF},
	{"nPostConcat","(JJ)V", (void*) SkMatrixGlue::postConcat},
	{"nInvert","(JJ)Z", (void*) SkMatrixGlue::invert},
	{"nMapRadius","(JF)F", (void*) SkMatrixGlue::mapRadius},
	{"nEquals", "(JJ)Z", (void*) SkMatrixGlue::equals}
	};

	static jfieldID sNativeInstanceField;

	int register_android_graphics_Matrix(JNIEnv* env) {
	int result = RegisterMethodsOrDie(env, "android/graphics/Matrix", methods, NELEM(methods));

	jclass clazz = FindClassOrDie(env, "android/graphics/Matrix");
	sNativeInstanceField = GetFieldIDOrDie(env, clazz, "native_instance", "J");

	return result;
	}

	SkMatrix* android_graphics_Matrix_getSkMatrix(JNIEnv* env, jobject matrixObj) {
	return reinterpret_cast<SkMatrix*>(env->GetLongField(matrixObj, sNativeInstanceField));
	}

	}