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PL286/frameworks/rs/cpu_ref/rsCpuIntrinsicResize.cpp

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/*
* 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"
namespace android {
namespace renderscript {
class RsdCpuScriptIntrinsicResize : public RsdCpuScriptIntrinsic {
public:
void populateScript(Script *) override;
void invokeFreeChildren() override;
void setGlobalObj(uint32_t slot, ObjectBase *data) override;
~RsdCpuScriptIntrinsicResize() override;
RsdCpuScriptIntrinsicResize(RsdCpuReferenceImpl *ctx, const Script *s, const Element *);
void preLaunch(uint32_t slot, const Allocation ** ains,
uint32_t inLen, Allocation * aout, const void * usr,
uint32_t usrLen, const RsScriptCall *sc) override;
float scaleX;
float scaleY;
protected:
ObjectBaseRef<const Allocation> mAlloc;
ObjectBaseRef<const Element> mElement;
static void kernelU1(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep);
static void kernelU2(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep);
static void kernelU4(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep);
static void kernelF1(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep);
static void kernelF2(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep);
static void kernelF4(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
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;
}
extern "C" uint64_t rsdIntrinsicResize_oscctl_K(uint32_t xinc);
extern "C" void rsdIntrinsicResizeB4_K(
uchar4 *dst,
size_t count,
uint32_t xf,
uint32_t xinc,
uchar4 const *srcn,
uchar4 const *src0,
uchar4 const *src1,
uchar4 const *src2,
size_t xclip,
size_t avail,
uint64_t osc_ctl,
int32_t const *yr);
extern "C" void rsdIntrinsicResizeB2_K(
uchar2 *dst,
size_t count,
uint32_t xf,
uint32_t xinc,
uchar2 const *srcn,
uchar2 const *src0,
uchar2 const *src1,
uchar2 const *src2,
size_t xclip,
size_t avail,
uint64_t osc_ctl,
int32_t const *yr);
extern "C" void rsdIntrinsicResizeB1_K(
uchar *dst,
size_t count,
uint32_t xf,
uint32_t xinc,
uchar const *srcn,
uchar const *src0,
uchar const *src1,
uchar const *src2,
size_t xclip,
size_t avail,
uint64_t osc_ctl,
int32_t const *yr);
#if defined(ARCH_ARM_USE_INTRINSICS)
static void mkYCoeff(int32_t *yr, float yf) {
int32_t yf1 = rint(yf * 0x10000);
int32_t yf2 = rint(yf * yf * 0x10000);
int32_t yf3 = rint(yf * yf * yf * 0x10000);
yr[0] = -(2 * yf2 - yf3 - yf1) >> 1;
yr[1] = (3 * yf3 - 5 * yf2 + 0x20000) >> 1;
yr[2] = (-3 * yf3 + 4 * yf2 + yf1) >> 1;
yr[3] = -(yf3 - yf2) >> 1;
}
#endif
static float4 OneBiCubic(const float4 *yp0, const float4 *yp1, const float4 *yp2, const float4 *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(yp0[xs0], yp0[xs1],
yp0[xs2], yp0[xs3], xf);
float4 p1 = cubicInterpolate(yp1[xs0], yp1[xs1],
yp1[xs2], yp1[xs3], xf);
float4 p2 = cubicInterpolate(yp2[xs0], yp2[xs1],
yp2[xs2], yp2[xs3], xf);
float4 p3 = cubicInterpolate(yp3[xs0], yp3[xs1],
yp3[xs2], yp3[xs3], xf);
float4 p = cubicInterpolate(p0, p1, p2, p3, yf);
return p;
}
static float2 OneBiCubic(const float2 *yp0, const float2 *yp1, const float2 *yp2, const float2 *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(yp0[xs0], yp0[xs1],
yp0[xs2], yp0[xs3], xf);
float2 p1 = cubicInterpolate(yp1[xs0], yp1[xs1],
yp1[xs2], yp1[xs3], xf);
float2 p2 = cubicInterpolate(yp2[xs0], yp2[xs1],
yp2[xs2], yp2[xs3], xf);
float2 p3 = cubicInterpolate(yp3[xs0], yp3[xs1],
yp3[xs2], yp3[xs3], xf);
float2 p = cubicInterpolate(p0, p1, p2, p3, yf);
return p;
}
static float OneBiCubic(const float *yp0, const float *yp1, const float *yp2, const float *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(yp0[xs0], yp0[xs1],
yp0[xs2], yp0[xs3], xf);
float p1 = cubicInterpolate(yp1[xs0], yp1[xs1],
yp1[xs2], yp1[xs3], xf);
float p2 = cubicInterpolate(yp2[xs0], yp2[xs1],
yp2[xs2], yp2[xs3], xf);
float p3 = cubicInterpolate(yp3[xs0], yp3[xs1],
yp3[xs2], yp3[xs3], xf);
float p = cubicInterpolate(p0, p1, p2, p3, yf);
return p;
}
void RsdCpuScriptIntrinsicResize::kernelU4(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep) {
RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)info->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 = (info->current.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 *)info->outPtr[0]) + xstart;
uint32_t x1 = xstart;
uint32_t x2 = xend;
#if defined(ARCH_ARM_USE_INTRINSICS)
if (gArchUseSIMD && x2 > x1 && cp->scaleX < 4.0f) {
float xf = (x1 + 0.5f) * cp->scaleX - 0.5f;
long xf16 = rint(xf * 0x10000);
uint32_t xinc16 = rint(cp->scaleX * 0x10000);
int xoff = (xf16 >> 16) - 1;
int xclip = rsMax(0, xoff) - xoff;
int len = x2 - x1;
int32_t yr[4];
uint64_t osc_ctl = rsdIntrinsicResize_oscctl_K(xinc16);
mkYCoeff(yr, yf);
xoff += xclip;
rsdIntrinsicResizeB4_K(
out, len,
xf16 & 0xffff, xinc16,
yp0 + xoff, yp1 + xoff, yp2 + xoff, yp3 + xoff,
xclip, srcWidth - xoff + xclip,
osc_ctl, yr);
out += len;
x1 += len;
}
#endif
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 RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep) {
RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)info->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 = (info->current.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 *)info->outPtr[0]) + xstart;
uint32_t x1 = xstart;
uint32_t x2 = xend;
#if defined(ARCH_ARM_USE_INTRINSICS)
if (gArchUseSIMD && x2 > x1 && cp->scaleX < 4.0f) {
float xf = (x1 + 0.5f) * cp->scaleX - 0.5f;
long xf16 = rint(xf * 0x10000);
uint32_t xinc16 = rint(cp->scaleX * 0x10000);
int xoff = (xf16 >> 16) - 1;
int xclip = rsMax(0, xoff) - xoff;
int len = x2 - x1;
int32_t yr[4];
uint64_t osc_ctl = rsdIntrinsicResize_oscctl_K(xinc16);
mkYCoeff(yr, yf);
xoff += xclip;
rsdIntrinsicResizeB2_K(
out, len,
xf16 & 0xffff, xinc16,
yp0 + xoff, yp1 + xoff, yp2 + xoff, yp3 + xoff,
xclip, srcWidth - xoff + xclip,
osc_ctl, yr);
out += len;
x1 += len;
}
#endif
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 RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep) {
RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)info->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 = (info->current.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 *)info->outPtr[0]) + xstart;
uint32_t x1 = xstart;
uint32_t x2 = xend;
#if defined(ARCH_ARM_USE_INTRINSICS)
if (gArchUseSIMD && x2 > x1 && cp->scaleX < 4.0f) {
float xf = (x1 + 0.5f) * cp->scaleX - 0.5f;
long xf16 = rint(xf * 0x10000);
uint32_t xinc16 = rint(cp->scaleX * 0x10000);
int xoff = (xf16 >> 16) - 1;
int xclip = rsMax(0, xoff) - xoff;
int len = x2 - x1;
int32_t yr[4];
uint64_t osc_ctl = rsdIntrinsicResize_oscctl_K(xinc16);
mkYCoeff(yr, yf);
xoff += xclip;
rsdIntrinsicResizeB1_K(
out, len,
xf16 & 0xffff, xinc16,
yp0 + xoff, yp1 + xoff, yp2 + xoff, yp3 + xoff,
xclip, srcWidth - xoff + xclip,
osc_ctl, yr);
out += len;
x1 += len;
}
#endif
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::kernelF4(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep) {
RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)info->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 = (info->current.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 float4 *yp0 = (const float4 *)(pin + stride * ys0);
const float4 *yp1 = (const float4 *)(pin + stride * ys1);
const float4 *yp2 = (const float4 *)(pin + stride * ys2);
const float4 *yp3 = (const float4 *)(pin + stride * ys3);
float4 *out = ((float4 *)info->outPtr[0]) + 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::kernelF2(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep) {
RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)info->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 = (info->current.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 float2 *yp0 = (const float2 *)(pin + stride * ys0);
const float2 *yp1 = (const float2 *)(pin + stride * ys1);
const float2 *yp2 = (const float2 *)(pin + stride * ys2);
const float2 *yp3 = (const float2 *)(pin + stride * ys3);
float2 *out = ((float2 *)info->outPtr[0]) + 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::kernelF1(const RsExpandKernelDriverInfo *info,
uint32_t xstart, uint32_t xend,
uint32_t outstep) {
RsdCpuScriptIntrinsicResize *cp = (RsdCpuScriptIntrinsicResize *)info->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 = (info->current.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 float *yp0 = (const float *)(pin + stride * ys0);
const float *yp1 = (const float *)(pin + stride * ys1);
const float *yp2 = (const float *)(pin + stride * ys2);
const float *yp3 = (const float *)(pin + stride * ys3);
float *out = ((float *)info->outPtr[0]) + 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 ** ains,
uint32_t inLen, 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;
//check the data type to determine F or U.
if (mAlloc->getType()->getElement()->getType() == RS_TYPE_UNSIGNED_8) {
switch(mAlloc->getType()->getElement()->getVectorSize()) {
case 1:
mRootPtr = &kernelU1;
break;
case 2:
mRootPtr = &kernelU2;
break;
case 3:
case 4:
mRootPtr = &kernelU4;
break;
}
} else {
switch(mAlloc->getType()->getElement()->getVectorSize()) {
case 1:
mRootPtr = &kernelF1;
break;
case 2:
mRootPtr = &kernelF2;
break;
case 3:
case 4:
mRootPtr = &kernelF4;
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);
}
} // namespace renderscript
} // namespace android