/*
* 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 RsForEachStubParamStruct *p,
uint32_t xstart, uint32_t xend,
uint32_t instep, uint32_t outstep);
static void kernelU2(const RsForEachStubParamStruct *p,
uint32_t xstart, uint32_t xend,
uint32_t instep, uint32_t outstep);
static void kernelU4(const RsForEachStubParamStruct *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));
}
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 - 1);
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 + 0.5f, 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 - 1);
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 + 0.5f, 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 - 1);
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 + 0.5f, 0.f, 255.f);
return (uchar)p;
}
void RsdCpuScriptIntrinsicResize::kernelU4(const RsForEachStubParamStruct *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 + 0.5f) * cp->scaleY - 0.5f;
int starty = (int) floor(yf - 1);
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 + 0.5f) * cp->scaleX - 0.5f;
*out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
out++;
x1++;
}
}
void RsdCpuScriptIntrinsicResize::kernelU2(const RsForEachStubParamStruct *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 + 0.5f) * cp->scaleY - 0.5f;
int starty = (int) floor(yf - 1);
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 + 0.5f) * cp->scaleX - 0.5f;
*out = OneBiCubic(yp0, yp1, yp2, yp3, xf, yf, srcWidth);
out++;
x1++;
}
}
void RsdCpuScriptIntrinsicResize::kernelU1(const RsForEachStubParamStruct *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 + 0.5f) * cp->scaleY - 0.5f;
int starty = (int) floor(yf - 1);
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 + 0.5f) * cp->scaleX - 0.5f;
*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);
}