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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 
     18 #include "rsCpuIntrinsic.h"
     19 #include "rsCpuIntrinsicInlines.h"
     20 
     21 using namespace android;
     22 using namespace android::renderscript;
     23 
     24 namespace android {
     25 namespace renderscript {
     26 
     27 
     28 class RsdCpuScriptIntrinsicConvolve5x5 : public RsdCpuScriptIntrinsic {
     29 public:
     30     virtual void populateScript(Script *);
     31     virtual void invokeFreeChildren();
     32 
     33     virtual void setGlobalVar(uint32_t slot, const void *data, size_t dataLength);
     34     virtual void setGlobalObj(uint32_t slot, ObjectBase *data);
     35 
     36     virtual ~RsdCpuScriptIntrinsicConvolve5x5();
     37     RsdCpuScriptIntrinsicConvolve5x5(RsdCpuReferenceImpl *ctx, const Script *s, const Element *e);
     38 
     39 protected:
     40     float fp[28];
     41     short ip[28];
     42     ObjectBaseRef<Allocation> alloc;
     43 
     44 
     45     static void kernel(const RsForEachStubParamStruct *p,
     46                        uint32_t xstart, uint32_t xend,
     47                        uint32_t instep, uint32_t outstep);
     48 
     49 
     50 };
     51 
     52 }
     53 }
     54 
     55 void RsdCpuScriptIntrinsicConvolve5x5::setGlobalObj(uint32_t slot, ObjectBase *data) {
     56     rsAssert(slot == 1);
     57     alloc.set(static_cast<Allocation *>(data));
     58 }
     59 
     60 void RsdCpuScriptIntrinsicConvolve5x5::setGlobalVar(uint32_t slot,
     61                                                     const void *data, size_t dataLength) {
     62     rsAssert(slot == 0);
     63     memcpy (&fp, data, dataLength);
     64     for(int ct=0; ct < 25; ct++) {
     65         ip[ct] = (short)(fp[ct] * 255.f);
     66     }
     67 }
     68 
     69 
     70 static void One(const RsForEachStubParamStruct *p, uint32_t x, uchar4 *out,
     71                 const uchar4 *py0, const uchar4 *py1, const uchar4 *py2, const uchar4 *py3, const uchar4 *py4,
     72                 const float* coeff) {
     73 
     74     uint32_t x0 = rsMax((int32_t)x-2, 0);
     75     uint32_t x1 = rsMax((int32_t)x-1, 0);
     76     uint32_t x2 = x;
     77     uint32_t x3 = rsMin((int32_t)x+1, (int32_t)(p->dimX-1));
     78     uint32_t x4 = rsMin((int32_t)x+2, (int32_t)(p->dimX-1));
     79 
     80     float4 px = convert_float4(py0[x0]) * coeff[0] +
     81                 convert_float4(py0[x1]) * coeff[1] +
     82                 convert_float4(py0[x2]) * coeff[2] +
     83                 convert_float4(py0[x3]) * coeff[3] +
     84                 convert_float4(py0[x4]) * coeff[4] +
     85 
     86                 convert_float4(py1[x0]) * coeff[5] +
     87                 convert_float4(py1[x1]) * coeff[6] +
     88                 convert_float4(py1[x2]) * coeff[7] +
     89                 convert_float4(py1[x3]) * coeff[8] +
     90                 convert_float4(py1[x4]) * coeff[9] +
     91 
     92                 convert_float4(py2[x0]) * coeff[10] +
     93                 convert_float4(py2[x1]) * coeff[11] +
     94                 convert_float4(py2[x2]) * coeff[12] +
     95                 convert_float4(py2[x3]) * coeff[13] +
     96                 convert_float4(py2[x4]) * coeff[14] +
     97 
     98                 convert_float4(py3[x0]) * coeff[15] +
     99                 convert_float4(py3[x1]) * coeff[16] +
    100                 convert_float4(py3[x2]) * coeff[17] +
    101                 convert_float4(py3[x3]) * coeff[18] +
    102                 convert_float4(py3[x4]) * coeff[19] +
    103 
    104                 convert_float4(py4[x0]) * coeff[20] +
    105                 convert_float4(py4[x1]) * coeff[21] +
    106                 convert_float4(py4[x2]) * coeff[22] +
    107                 convert_float4(py4[x3]) * coeff[23] +
    108                 convert_float4(py4[x4]) * coeff[24];
    109 
    110     px = clamp(px, 0.f, 255.f);
    111     uchar4 o = {(uchar)px.x, (uchar)px.y, (uchar)px.z, (uchar)px.w};
    112     //if ((out[0].r != o.r) || (out[0].y != o.y) || (out[0].z != o.z) || (out[0].w != o.w)) {
    113         //ALOGE("x %i  %i,%i,%i,%i  %i,%i,%i,%i", x, o.x, o.y, o.z, o.w, out[0].x, out[0].y, out[0].z, out[0].w);
    114     //}
    115     //o.w = 0xff;
    116     out->xyzw = o.xyzw;
    117 }
    118 
    119 extern "C" void rsdIntrinsicConvolve5x5_K(void *dst, const void *y0, const void *y1,
    120                                           const void *y2, const void *y3, const void *y4,
    121                                           const short *coef, uint32_t count);
    122 
    123 void RsdCpuScriptIntrinsicConvolve5x5::kernel(const RsForEachStubParamStruct *p,
    124                                               uint32_t xstart, uint32_t xend,
    125                                               uint32_t instep, uint32_t outstep) {
    126     RsdCpuScriptIntrinsicConvolve5x5 *cp = (RsdCpuScriptIntrinsicConvolve5x5 *)p->usr;
    127     if (!cp->alloc.get()) {
    128         ALOGE("Convolve5x5 executed without input, skipping");
    129         return;
    130     }
    131     const uchar *pin = (const uchar *)cp->alloc->mHal.drvState.lod[0].mallocPtr;
    132     const size_t stride = cp->alloc->mHal.drvState.lod[0].stride;
    133 
    134     uint32_t y0 = rsMax((int32_t)p->y-2, 0);
    135     uint32_t y1 = rsMax((int32_t)p->y-1, 0);
    136     uint32_t y2 = p->y;
    137     uint32_t y3 = rsMin((int32_t)p->y+1, (int32_t)(p->dimY-1));
    138     uint32_t y4 = rsMin((int32_t)p->y+2, (int32_t)(p->dimY-1));
    139 
    140     const uchar4 *py0 = (const uchar4 *)(pin + stride * y0);
    141     const uchar4 *py1 = (const uchar4 *)(pin + stride * y1);
    142     const uchar4 *py2 = (const uchar4 *)(pin + stride * y2);
    143     const uchar4 *py3 = (const uchar4 *)(pin + stride * y3);
    144     const uchar4 *py4 = (const uchar4 *)(pin + stride * y4);
    145 
    146     uchar4 *out = (uchar4 *)p->out;
    147     uint32_t x1 = xstart;
    148     uint32_t x2 = xend;
    149 
    150     while((x1 < x2) && (x1 < 2)) {
    151         One(p, x1, out, py0, py1, py2, py3, py4, cp->fp);
    152         out++;
    153         x1++;
    154     }
    155 
    156 #if defined(ARCH_ARM_HAVE_NEON)
    157     if((x1 + 3) < x2) {
    158         uint32_t len = (x2 - x1 - 3) >> 1;
    159         rsdIntrinsicConvolve5x5_K(out, py0, py1, py2, py3, py4, cp->ip, len);
    160         out += len << 1;
    161         x1 += len << 1;
    162     }
    163 #endif
    164 
    165     while(x1 < x2) {
    166         One(p, x1, out, py0, py1, py2, py3, py4, cp->fp);
    167         out++;
    168         x1++;
    169     }
    170 }
    171 
    172 
    173 RsdCpuScriptIntrinsicConvolve5x5::RsdCpuScriptIntrinsicConvolve5x5(
    174             RsdCpuReferenceImpl *ctx, const Script *s, const Element *e)
    175             : RsdCpuScriptIntrinsic(ctx, s, e, RS_SCRIPT_INTRINSIC_ID_CONVOLVE_5x5) {
    176 
    177     mRootPtr = &kernel;
    178     for(int ct=0; ct < 25; ct++) {
    179         fp[ct] = 1.f / 25.f;
    180         ip[ct] = (short)(fp[ct] * 255.f);
    181     }
    182 }
    183 
    184 RsdCpuScriptIntrinsicConvolve5x5::~RsdCpuScriptIntrinsicConvolve5x5() {
    185 }
    186 
    187 void RsdCpuScriptIntrinsicConvolve5x5::populateScript(Script *s) {
    188     s->mHal.info.exportedVariableCount = 2;
    189 }
    190 
    191 void RsdCpuScriptIntrinsicConvolve5x5::invokeFreeChildren() {
    192     alloc.clear();
    193 }
    194 
    195 
    196 RsdCpuScriptImpl * rsdIntrinsic_Convolve5x5(RsdCpuReferenceImpl *ctx,
    197                                             const Script *s, const Element *e) {
    198 
    199     return new RsdCpuScriptIntrinsicConvolve5x5(ctx, s, e);
    200 }
    201 
    202 
    203 
    204