cpu_ref/rsCpuIntrinsicResize.cpp - platform/frameworks/rs - Git at Google

 /*
  * Copyright (C) 2014 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 "rsCpuIntrinsic.h"
 #include "rsCpuIntrinsicInlines.h"

 using namespace android;
 using namespace android::renderscript;

 namespace android {
 namespace renderscript {


 class RsdCpuScriptIntrinsicResize : public RsdCpuScriptIntrinsic {
 public:
     virtual void populateScript(Script *);
     virtual void invokeFreeChildren();

     virtual void setGlobalObj(uint32_t slot, ObjectBase *data);

     virtual ~RsdCpuScriptIntrinsicResize();
     RsdCpuScriptIntrinsicResize(RsdCpuReferenceImpl *ctx, const Script *s, const Element *);

     virtual void preLaunch(uint32_t slot, const Allocation * ain,
                            Allocation * aout, const void * usr,
                            uint32_t usrLen, const RsScriptCall *sc);

     float scaleX;
     float scaleY;

 protected:
     ObjectBaseRef<const Allocation> mAlloc;
     ObjectBaseRef<const Element> mElement;

     static void kernelU1(const RsExpandKernelParams *p,
                          uint32_t xstart, uint32_t xend,
                          uint32_t instep, uint32_t outstep);
     static void kernelU2(const RsExpandKernelParams *p,
                          uint32_t xstart, uint32_t xend,
                          uint32_t instep, uint32_t outstep);
     static void kernelU4(const RsExpandKernelParams *p,
                          uint32_t xstart, uint32_t xend,
                          uint32_t instep, uint32_t outstep);
 };

 }
 }


 void RsdCpuScriptIntrinsicResize::setGlobalObj(uint32_t slot, ObjectBase *data) {
     rsAssert(slot == 0);
     mAlloc.set(static_cast<Allocation *>(data));
 }


 extern "C" void rsdIntrinsicConvolve3x3_K(void *dst, const void *y0, const void *y1,
                                           const void *y2, const short *coef, uint32_t count);

 static float4 cubicInterpolate(float4 p0,float4 p1,float4 p2,float4 p3, float x) {
     return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
             + x * (3.f * (p1 - p2) + p3 - p0)));
 }

 static float2 cubicInterpolate(float2 p0,float2 p1,float2 p2,float2 p3, float x) {
     return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
             + x * (3.f * (p1 - p2) + p3 - p0)));
 }

 static float cubicInterpolate(float p0,float p1,float p2,float p3 , float x) {
     return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
             + x * (3.f * (p1 - p2) + p3 - p0)));
 }

 static uchar4 OneBiCubic(const uchar4 *yp0, const uchar4 *yp1, const uchar4 *yp2, const uchar4 *yp3,
                          float xf, float yf, int width) {
     int startx = (int) floor(xf - 2);
     xf = xf - floor(xf);
     int maxx = width - 1;
     int xs0 = rsMax(0, startx + 0);
     int xs1 = rsMax(0, startx + 1);
     int xs2 = rsMin(maxx, startx + 2);
     int xs3 = rsMin(maxx, startx + 3);

     float4 p0  = cubicInterpolate(convert_float4(yp0[xs0]),
                                   convert_float4(yp0[xs1]),
                                   convert_float4(yp0[xs2]),
                                   convert_float4(yp0[xs3]), xf);

     float4 p1  = cubicInterpolate(convert_float4(yp1[xs0]),
                                   convert_float4(yp1[xs1]),
                                   convert_float4(yp1[xs2]),
                                   convert_float4(yp1[xs3]), xf);

     float4 p2  = cubicInterpolate(convert_float4(yp2[xs0]),
                                   convert_float4(yp2[xs1]),
                                   convert_float4(yp2[xs2]),
                                   convert_float4(yp2[xs3]), xf);

     float4 p3  = cubicInterpolate(convert_float4(yp3[xs0]),
                                   convert_float4(yp3[xs1]),
                                   convert_float4(yp3[xs2]),
                                   convert_float4(yp3[xs3]), xf);

     float4 p  = cubicInterpolate(p0, p1, p2, p3, yf);
     p = clamp(p, 0.f, 255.f);
     return convert_uchar4(p);
 }

 static uchar2 OneBiCubic(const uchar2 *yp0, const uchar2 *yp1, const uchar2 *yp2, const uchar2 *yp3,
                          float xf, float yf, int width) {
     int startx = (int) floor(xf - 2);
     xf = xf - floor(xf);
     int maxx = width - 1;
     int xs0 = rsMax(0, startx + 0);
     int xs1 = rsMax(0, startx + 1);
     int xs2 = rsMin(maxx, startx + 2);
     int xs3 = rsMin(maxx, startx + 3);

     float2 p0  = cubicInterpolate(convert_float2(yp0[xs0]),
                                   convert_float2(yp0[xs1]),
                                   convert_float2(yp0[xs2]),
                                   convert_float2(yp0[xs3]), xf);

     float2 p1  = cubicInterpolate(convert_float2(yp1[xs0]),
                                   convert_float2(yp1[xs1]),
                                   convert_float2(yp1[xs2]),
                                   convert_float2(yp1[xs3]), xf);

     float2 p2  = cubicInterpolate(convert_float2(yp2[xs0]),
                                   convert_float2(yp2[xs1]),
                                   convert_float2(yp2[xs2]),
                                   convert_float2(yp2[xs3]), xf);

     float2 p3  = cubicInterpolate(convert_float2(yp3[xs0]),
                                   convert_float2(yp3[xs1]),
                                   convert_float2(yp3[xs2]),
                                   convert_float2(yp3[xs3]), xf);

     float2 p  = cubicInterpolate(p0, p1, p2, p3, yf);
     p = clamp(p, 0.f, 255.f);
     return convert_uchar2(p);
 }

 static uchar OneBiCubic(const uchar *yp0, const uchar *yp1, const uchar *yp2, const uchar *yp3,
                         float xf, float yf, int width) {
     int startx = (int) floor(xf - 2);
     xf = xf - floor(xf);
     int maxx = width - 1;
     int xs0 = rsMax(0, startx + 0);
     int xs1 = rsMax(0, startx + 1);
     int xs2 = rsMin(maxx, startx + 2);
     int xs3 = rsMin(maxx, startx + 3);

     float p0  = cubicInterpolate((float)yp0[xs0], (float)yp0[xs1],
                                  (float)yp0[xs2], (float)yp0[xs3], xf);
     float p1  = cubicInterpolate((float)yp1[xs0], (float)yp1[xs1],
                                  (float)yp1[xs2], (float)yp1[xs3], xf);
     float p2  = cubicInterpolate((float)yp2[xs0], (float)yp2[xs1],
                                  (float)yp2[xs2], (float)yp2[xs3], xf);
     float p3  = cubicInterpolate((float)yp3[xs0], (float)yp3[xs1],
                                  (float)yp3[xs2], (float)yp3[xs3], xf);

     float p  = cubicInterpolate(p0, p1, p2, p3, yf);
     p = clamp(p, 0.f, 255.f);
     return (uchar)p;
 }

 void RsdCpuScriptIntrinsicResize::kernelU4(const RsExpandKernelParams *p,
                                                 uint32_t xstart, uint32_t xend,
                                                 uint32_t instep, uint32_t outstep) {
     RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)p->usr;

     if (!cp->mAlloc.get()) {
         ALOGE("Resize executed without input, skipping");
         return;
     }
     const uchar *pin = (const uchar *)cp->mAlloc->mHal.drvState.lod[0].mallocPtr;
     const int srcHeight = cp->mAlloc->mHal.drvState.lod[0].dimY;
     const int srcWidth = cp->mAlloc->mHal.drvState.lod[0].dimX;
     const size_t stride = cp->mAlloc->mHal.drvState.lod[0].stride;

     float yf = p->y * cp->scaleY;
     int starty = (int) floor(yf - 2);
     yf = yf - floor(yf);
     int maxy = srcHeight - 1;
     int ys0 = rsMax(0, starty + 0);
     int ys1 = rsMax(0, starty + 1);
     int ys2 = rsMin(maxy, starty + 2);
     int ys3 = rsMin(maxy, starty + 3);

     const uchar4 *yp0 = (const uchar4 *)(pin + stride * ys0);
     const uchar4 *yp1 = (const uchar4 *)(pin + stride * ys1);
     const uchar4 *yp2 = (const uchar4 *)(pin + stride * ys2);
     const uchar4 *yp3 = (const uchar4 *)(pin + stride * ys3);

     uchar4 *out = ((uchar4 *)p->out) + xstart;
     uint32_t x1 = xstart;
     uint32_t x2 = xend;

     while(x1 < x2) {
         float xf = x1 * cp->scaleX;
         *out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
         out++;
         x1++;
     }
 }

 void RsdCpuScriptIntrinsicResize::kernelU2(const RsExpandKernelParams *p,
                                                 uint32_t xstart, uint32_t xend,
                                                 uint32_t instep, uint32_t outstep) {
     RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)p->usr;

     if (!cp->mAlloc.get()) {
         ALOGE("Resize executed without input, skipping");
         return;
     }
     const uchar *pin = (const uchar *)cp->mAlloc->mHal.drvState.lod[0].mallocPtr;
     const int srcHeight = cp->mAlloc->mHal.drvState.lod[0].dimY;
     const int srcWidth = cp->mAlloc->mHal.drvState.lod[0].dimX;
     const size_t stride = cp->mAlloc->mHal.drvState.lod[0].stride;

     float yf = p->y * cp->scaleY;
     int starty = (int) floor(yf - 2);
     yf = yf - floor(yf);
     int maxy = srcHeight - 1;
     int ys0 = rsMax(0, starty + 0);
     int ys1 = rsMax(0, starty + 1);
     int ys2 = rsMin(maxy, starty + 2);
     int ys3 = rsMin(maxy, starty + 3);

     const uchar2 *yp0 = (const uchar2 *)(pin + stride * ys0);
     const uchar2 *yp1 = (const uchar2 *)(pin + stride * ys1);
     const uchar2 *yp2 = (const uchar2 *)(pin + stride * ys2);
     const uchar2 *yp3 = (const uchar2 *)(pin + stride * ys3);

     uchar2 *out = ((uchar2 *)p->out) + xstart;
     uint32_t x1 = xstart;
     uint32_t x2 = xend;

     while(x1 < x2) {
         float xf = x1 * cp->scaleX;
         *out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
         out++;
         x1++;
     }
 }

 void RsdCpuScriptIntrinsicResize::kernelU1(const RsExpandKernelParams *p,
                                                 uint32_t xstart, uint32_t xend,
                                                 uint32_t instep, uint32_t outstep) {
     RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)p->usr;

     if (!cp->mAlloc.get()) {
         ALOGE("Resize executed without input, skipping");
         return;
     }
     const uchar *pin = (const uchar *)cp->mAlloc->mHal.drvState.lod[0].mallocPtr;
     const int srcHeight = cp->mAlloc->mHal.drvState.lod[0].dimY;
     const int srcWidth = cp->mAlloc->mHal.drvState.lod[0].dimX;
     const size_t stride = cp->mAlloc->mHal.drvState.lod[0].stride;

     float yf = p->y * cp->scaleY;
     int starty = (int) floor(yf - 2);
     yf = yf - floor(yf);
     int maxy = srcHeight - 1;
     int ys0 = rsMax(0, starty + 0);
     int ys1 = rsMax(0, starty + 1);
     int ys2 = rsMin(maxy, starty + 2);
     int ys3 = rsMin(maxy, starty + 3);

     const uchar *yp0 = pin + stride * ys0;
     const uchar *yp1 = pin + stride * ys1;
     const uchar *yp2 = pin + stride * ys2;
     const uchar *yp3 = pin + stride * ys3;

     uchar *out = ((uchar *)p->out) + xstart;
     uint32_t x1 = xstart;
     uint32_t x2 = xend;

     while(x1 < x2) {
         float xf = x1 * cp->scaleX;
         *out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
         out++;
         x1++;
     }
 }

 RsdCpuScriptIntrinsicResize::RsdCpuScriptIntrinsicResize (
             RsdCpuReferenceImpl *ctx, const Script *s, const Element *e)
             : RsdCpuScriptIntrinsic(ctx, s, e, RS_SCRIPT_INTRINSIC_ID_RESIZE) {

 }

 RsdCpuScriptIntrinsicResize::~RsdCpuScriptIntrinsicResize() {
 }

 void RsdCpuScriptIntrinsicResize::preLaunch(uint32_t slot, const Allocation * ain,
                                             Allocation * aout, const void * usr,
                                             uint32_t usrLen, const RsScriptCall *sc)
 {
     if (!mAlloc.get()) {
         ALOGE("Resize executed without input, skipping");
         return;
     }
     const uint32_t srcHeight = mAlloc->mHal.drvState.lod[0].dimY;
     const uint32_t srcWidth = mAlloc->mHal.drvState.lod[0].dimX;
     const size_t stride = mAlloc->mHal.drvState.lod[0].stride;

     switch(mAlloc->getType()->getElement()->getVectorSize()) {
     case 1:
         mRootPtr = &kernelU1;
         break;
     case 2:
         mRootPtr = &kernelU2;
         break;
     case 3:
     case 4:
         mRootPtr = &kernelU4;
         break;
     }

     scaleX = (float)srcWidth / aout->mHal.drvState.lod[0].dimX;
     scaleY = (float)srcHeight / aout->mHal.drvState.lod[0].dimY;

 }

 void RsdCpuScriptIntrinsicResize::populateScript(Script *s) {
     s->mHal.info.exportedVariableCount = 1;
 }

 void RsdCpuScriptIntrinsicResize::invokeFreeChildren() {
     mAlloc.clear();
 }


 RsdCpuScriptImpl * rsdIntrinsic_Resize(RsdCpuReferenceImpl *ctx, const Script *s, const Element *e) {

     return new RsdCpuScriptIntrinsicResize(ctx, s, e);
 }
	/*
	* Copyright (C) 2014 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 "rsCpuIntrinsic.h"
	#include "rsCpuIntrinsicInlines.h"

	using namespace android;
	using namespace android::renderscript;

	namespace android {
	namespace renderscript {


	class RsdCpuScriptIntrinsicResize : public RsdCpuScriptIntrinsic {
	public:
	virtual void populateScript(Script *);
	virtual void invokeFreeChildren();

	virtual void setGlobalObj(uint32_t slot, ObjectBase *data);

	virtual ~RsdCpuScriptIntrinsicResize();
	RsdCpuScriptIntrinsicResize(RsdCpuReferenceImpl ctx, const Script s, const Element *);

	virtual void preLaunch(uint32_t slot, const Allocation * ain,
	Allocation * aout, const void * usr,
	uint32_t usrLen, const RsScriptCall *sc);

	float scaleX;
	float scaleY;

	protected:
	ObjectBaseRef<const Allocation> mAlloc;
	ObjectBaseRef<const Element> mElement;

	static void kernelU1(const RsExpandKernelParams *p,
	uint32_t xstart, uint32_t xend,
	uint32_t instep, uint32_t outstep);
	static void kernelU2(const RsExpandKernelParams *p,
	uint32_t xstart, uint32_t xend,
	uint32_t instep, uint32_t outstep);
	static void kernelU4(const RsExpandKernelParams *p,
	uint32_t xstart, uint32_t xend,
	uint32_t instep, uint32_t outstep);
	};

	}
	}


	void RsdCpuScriptIntrinsicResize::setGlobalObj(uint32_t slot, ObjectBase *data) {
	rsAssert(slot == 0);
	mAlloc.set(static_cast<Allocation *>(data));
	}


	extern "C" void rsdIntrinsicConvolve3x3_K(void dst, const void y0, const void *y1,
	const void y2, const short coef, uint32_t count);

	static float4 cubicInterpolate(float4 p0,float4 p1,float4 p2,float4 p3, float x) {
	return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
	+ x * (3.f * (p1 - p2) + p3 - p0)));
	}

	static float2 cubicInterpolate(float2 p0,float2 p1,float2 p2,float2 p3, float x) {
	return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
	+ x * (3.f * (p1 - p2) + p3 - p0)));
	}

	static float cubicInterpolate(float p0,float p1,float p2,float p3 , float x) {
	return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
	+ x * (3.f * (p1 - p2) + p3 - p0)));
	}

	static uchar4 OneBiCubic(const uchar4 yp0, const uchar4 yp1, const uchar4 yp2, const uchar4 yp3,
	float xf, float yf, int width) {
	int startx = (int) floor(xf - 2);
	xf = xf - floor(xf);
	int maxx = width - 1;
	int xs0 = rsMax(0, startx + 0);
	int xs1 = rsMax(0, startx + 1);
	int xs2 = rsMin(maxx, startx + 2);
	int xs3 = rsMin(maxx, startx + 3);

	float4 p0 = cubicInterpolate(convert_float4(yp0[xs0]),
	convert_float4(yp0[xs1]),
	convert_float4(yp0[xs2]),
	convert_float4(yp0[xs3]), xf);

	float4 p1 = cubicInterpolate(convert_float4(yp1[xs0]),
	convert_float4(yp1[xs1]),
	convert_float4(yp1[xs2]),
	convert_float4(yp1[xs3]), xf);

	float4 p2 = cubicInterpolate(convert_float4(yp2[xs0]),
	convert_float4(yp2[xs1]),
	convert_float4(yp2[xs2]),
	convert_float4(yp2[xs3]), xf);

	float4 p3 = cubicInterpolate(convert_float4(yp3[xs0]),
	convert_float4(yp3[xs1]),
	convert_float4(yp3[xs2]),
	convert_float4(yp3[xs3]), xf);

	float4 p = cubicInterpolate(p0, p1, p2, p3, yf);
	p = clamp(p, 0.f, 255.f);
	return convert_uchar4(p);
	}

	static uchar2 OneBiCubic(const uchar2 yp0, const uchar2 yp1, const uchar2 yp2, const uchar2 yp3,
	float xf, float yf, int width) {
	int startx = (int) floor(xf - 2);
	xf = xf - floor(xf);
	int maxx = width - 1;
	int xs0 = rsMax(0, startx + 0);
	int xs1 = rsMax(0, startx + 1);
	int xs2 = rsMin(maxx, startx + 2);
	int xs3 = rsMin(maxx, startx + 3);

	float2 p0 = cubicInterpolate(convert_float2(yp0[xs0]),
	convert_float2(yp0[xs1]),
	convert_float2(yp0[xs2]),
	convert_float2(yp0[xs3]), xf);

	float2 p1 = cubicInterpolate(convert_float2(yp1[xs0]),
	convert_float2(yp1[xs1]),
	convert_float2(yp1[xs2]),
	convert_float2(yp1[xs3]), xf);

	float2 p2 = cubicInterpolate(convert_float2(yp2[xs0]),
	convert_float2(yp2[xs1]),
	convert_float2(yp2[xs2]),
	convert_float2(yp2[xs3]), xf);

	float2 p3 = cubicInterpolate(convert_float2(yp3[xs0]),
	convert_float2(yp3[xs1]),
	convert_float2(yp3[xs2]),
	convert_float2(yp3[xs3]), xf);

	float2 p = cubicInterpolate(p0, p1, p2, p3, yf);
	p = clamp(p, 0.f, 255.f);
	return convert_uchar2(p);
	}

	static uchar OneBiCubic(const uchar yp0, const uchar yp1, const uchar yp2, const uchar yp3,
	float xf, float yf, int width) {
	int startx = (int) floor(xf - 2);
	xf = xf - floor(xf);
	int maxx = width - 1;
	int xs0 = rsMax(0, startx + 0);
	int xs1 = rsMax(0, startx + 1);
	int xs2 = rsMin(maxx, startx + 2);
	int xs3 = rsMin(maxx, startx + 3);

	float p0 = cubicInterpolate((float)yp0[xs0], (float)yp0[xs1],
	(float)yp0[xs2], (float)yp0[xs3], xf);
	float p1 = cubicInterpolate((float)yp1[xs0], (float)yp1[xs1],
	(float)yp1[xs2], (float)yp1[xs3], xf);
	float p2 = cubicInterpolate((float)yp2[xs0], (float)yp2[xs1],
	(float)yp2[xs2], (float)yp2[xs3], xf);
	float p3 = cubicInterpolate((float)yp3[xs0], (float)yp3[xs1],
	(float)yp3[xs2], (float)yp3[xs3], xf);

	float p = cubicInterpolate(p0, p1, p2, p3, yf);
	p = clamp(p, 0.f, 255.f);
	return (uchar)p;
	}

	void RsdCpuScriptIntrinsicResize::kernelU4(const RsExpandKernelParams *p,
	uint32_t xstart, uint32_t xend,
	uint32_t instep, uint32_t outstep) {
	RsdCpuScriptIntrinsicResize cp = (RsdCpuScriptIntrinsicResize )p->usr;

	if (!cp->mAlloc.get()) {
	ALOGE("Resize executed without input, skipping");
	return;
	}
	const uchar pin = (const uchar )cp->mAlloc->mHal.drvState.lod[0].mallocPtr;
	const int srcHeight = cp->mAlloc->mHal.drvState.lod[0].dimY;
	const int srcWidth = cp->mAlloc->mHal.drvState.lod[0].dimX;
	const size_t stride = cp->mAlloc->mHal.drvState.lod[0].stride;

	float yf = p->y * cp->scaleY;
	int starty = (int) floor(yf - 2);
	yf = yf - floor(yf);
	int maxy = srcHeight - 1;
	int ys0 = rsMax(0, starty + 0);
	int ys1 = rsMax(0, starty + 1);
	int ys2 = rsMin(maxy, starty + 2);
	int ys3 = rsMin(maxy, starty + 3);

	const uchar4 yp0 = (const uchar4 )(pin + stride * ys0);
	const uchar4 yp1 = (const uchar4 )(pin + stride * ys1);
	const uchar4 yp2 = (const uchar4 )(pin + stride * ys2);
	const uchar4 yp3 = (const uchar4 )(pin + stride * ys3);

	uchar4 out = ((uchar4 )p->out) + xstart;
	uint32_t x1 = xstart;
	uint32_t x2 = xend;

	while(x1 < x2) {
	float xf = x1 * cp->scaleX;
	*out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
	out++;
	x1++;
	}
	}

	void RsdCpuScriptIntrinsicResize::kernelU2(const RsExpandKernelParams *p,
	uint32_t xstart, uint32_t xend,
	uint32_t instep, uint32_t outstep) {
	RsdCpuScriptIntrinsicResize cp = (RsdCpuScriptIntrinsicResize )p->usr;

	if (!cp->mAlloc.get()) {
	ALOGE("Resize executed without input, skipping");
	return;
	}
	const uchar pin = (const uchar )cp->mAlloc->mHal.drvState.lod[0].mallocPtr;
	const int srcHeight = cp->mAlloc->mHal.drvState.lod[0].dimY;
	const int srcWidth = cp->mAlloc->mHal.drvState.lod[0].dimX;
	const size_t stride = cp->mAlloc->mHal.drvState.lod[0].stride;

	float yf = p->y * cp->scaleY;
	int starty = (int) floor(yf - 2);
	yf = yf - floor(yf);
	int maxy = srcHeight - 1;
	int ys0 = rsMax(0, starty + 0);
	int ys1 = rsMax(0, starty + 1);
	int ys2 = rsMin(maxy, starty + 2);
	int ys3 = rsMin(maxy, starty + 3);

	const uchar2 yp0 = (const uchar2 )(pin + stride * ys0);
	const uchar2 yp1 = (const uchar2 )(pin + stride * ys1);
	const uchar2 yp2 = (const uchar2 )(pin + stride * ys2);
	const uchar2 yp3 = (const uchar2 )(pin + stride * ys3);

	uchar2 out = ((uchar2 )p->out) + xstart;
	uint32_t x1 = xstart;
	uint32_t x2 = xend;

	while(x1 < x2) {
	float xf = x1 * cp->scaleX;
	*out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
	out++;
	x1++;
	}
	}

	void RsdCpuScriptIntrinsicResize::kernelU1(const RsExpandKernelParams *p,
	uint32_t xstart, uint32_t xend,
	uint32_t instep, uint32_t outstep) {
	RsdCpuScriptIntrinsicResize cp = (RsdCpuScriptIntrinsicResize )p->usr;

	if (!cp->mAlloc.get()) {
	ALOGE("Resize executed without input, skipping");
	return;
	}
	const uchar pin = (const uchar )cp->mAlloc->mHal.drvState.lod[0].mallocPtr;
	const int srcHeight = cp->mAlloc->mHal.drvState.lod[0].dimY;
	const int srcWidth = cp->mAlloc->mHal.drvState.lod[0].dimX;
	const size_t stride = cp->mAlloc->mHal.drvState.lod[0].stride;

	float yf = p->y * cp->scaleY;
	int starty = (int) floor(yf - 2);
	yf = yf - floor(yf);
	int maxy = srcHeight - 1;
	int ys0 = rsMax(0, starty + 0);
	int ys1 = rsMax(0, starty + 1);
	int ys2 = rsMin(maxy, starty + 2);
	int ys3 = rsMin(maxy, starty + 3);

	const uchar yp0 = pin + stride ys0;
	const uchar yp1 = pin + stride ys1;
	const uchar yp2 = pin + stride ys2;
	const uchar yp3 = pin + stride ys3;

	uchar out = ((uchar )p->out) + xstart;
	uint32_t x1 = xstart;
	uint32_t x2 = xend;

	while(x1 < x2) {
	float xf = x1 * cp->scaleX;
	*out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
	out++;
	x1++;
	}
	}

	RsdCpuScriptIntrinsicResize::RsdCpuScriptIntrinsicResize (
	RsdCpuReferenceImpl ctx, const Script s, const Element *e)
	: RsdCpuScriptIntrinsic(ctx, s, e, RS_SCRIPT_INTRINSIC_ID_RESIZE) {

	}

	RsdCpuScriptIntrinsicResize::~RsdCpuScriptIntrinsicResize() {
	}

	void RsdCpuScriptIntrinsicResize::preLaunch(uint32_t slot, const Allocation * ain,
	Allocation * aout, const void * usr,
	uint32_t usrLen, const RsScriptCall *sc)
	{
	if (!mAlloc.get()) {
	ALOGE("Resize executed without input, skipping");
	return;
	}
	const uint32_t srcHeight = mAlloc->mHal.drvState.lod[0].dimY;
	const uint32_t srcWidth = mAlloc->mHal.drvState.lod[0].dimX;
	const size_t stride = mAlloc->mHal.drvState.lod[0].stride;

	switch(mAlloc->getType()->getElement()->getVectorSize()) {
	case 1:
	mRootPtr = &kernelU1;
	break;
	case 2:
	mRootPtr = &kernelU2;
	break;
	case 3:
	case 4:
	mRootPtr = &kernelU4;
	break;
	}

	scaleX = (float)srcWidth / aout->mHal.drvState.lod[0].dimX;
	scaleY = (float)srcHeight / aout->mHal.drvState.lod[0].dimY;

	}

	void RsdCpuScriptIntrinsicResize::populateScript(Script *s) {
	s->mHal.info.exportedVariableCount = 1;
	}

	void RsdCpuScriptIntrinsicResize::invokeFreeChildren() {
	mAlloc.clear();
	}


	RsdCpuScriptImpl * rsdIntrinsic_Resize(RsdCpuReferenceImpl ctx, const Script s, const Element *e) {

	return new RsdCpuScriptIntrinsicResize(ctx, s, e);
	}