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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 RsdCpuScriptIntrinsic3DLUT : public RsdCpuScriptIntrinsic {
     29 public:
     30     void populateScript(Script *) override;
     31     void invokeFreeChildren() override;
     32 
     33     void setGlobalObj(uint32_t slot, ObjectBase *data) override;
     34 
     35     ~RsdCpuScriptIntrinsic3DLUT() override;
     36     RsdCpuScriptIntrinsic3DLUT(RsdCpuReferenceImpl *ctx, const Script *s, const Element *e);
     37 
     38 protected:
     39     ObjectBaseRef<Allocation> mLUT;
     40 
     41     static void kernel(const RsExpandKernelDriverInfo *info,
     42                        uint32_t xstart, uint32_t xend,
     43                        uint32_t outstep);
     44 };
     45 
     46 }
     47 }
     48 
     49 
     50 void RsdCpuScriptIntrinsic3DLUT::setGlobalObj(uint32_t slot, ObjectBase *data) {
     51     rsAssert(slot == 0);
     52     mLUT.set(static_cast<Allocation *>(data));
     53 }
     54 
     55 extern "C" void rsdIntrinsic3DLUT_K(void *dst, void const *in, size_t count,
     56                                       void const *lut,
     57                                       int32_t pitchy, int32_t pitchz,
     58                                       int dimx, int dimy, int dimz);
     59 
     60 
     61 void RsdCpuScriptIntrinsic3DLUT::kernel(const RsExpandKernelDriverInfo *info,
     62                                         uint32_t xstart, uint32_t xend,
     63                                         uint32_t outstep) {
     64     RsdCpuScriptIntrinsic3DLUT *cp = (RsdCpuScriptIntrinsic3DLUT *)info->usr;
     65 
     66     uchar4 *out = (uchar4 *)info->outPtr[0];
     67     uchar4 *in = (uchar4 *)info->inPtr[0];
     68     uint32_t x1 = xstart;
     69     uint32_t x2 = xend;
     70 
     71     const uchar *bp = (const uchar *)cp->mLUT->mHal.drvState.lod[0].mallocPtr;
     72 
     73     int4 dims = {
     74         static_cast<int>(cp->mLUT->mHal.drvState.lod[0].dimX - 1),
     75         static_cast<int>(cp->mLUT->mHal.drvState.lod[0].dimY - 1),
     76         static_cast<int>(cp->mLUT->mHal.drvState.lod[0].dimZ - 1),
     77         -1
     78     };
     79     const float4 m = (float4)(1.f / 255.f) * convert_float4(dims);
     80     const int4 coordMul = convert_int4(m * (float4)0x8000);
     81     const size_t stride_y = cp->mLUT->mHal.drvState.lod[0].stride;
     82     const size_t stride_z = stride_y * cp->mLUT->mHal.drvState.lod[0].dimY;
     83 
     84     //ALOGE("strides %zu %zu", stride_y, stride_z);
     85 
     86 #if defined(ARCH_ARM_USE_INTRINSICS)
     87     if (gArchUseSIMD) {
     88         int32_t len = x2 - x1;
     89         if(len > 0) {
     90             rsdIntrinsic3DLUT_K(out, in, len,
     91                                 bp, stride_y, stride_z,
     92                                 dims.x, dims.y, dims.z);
     93             x1 += len;
     94             out += len;
     95             in += len;
     96         }
     97     }
     98 #endif
     99 
    100     while (x1 < x2) {
    101         int4 baseCoord = convert_int4(*in) * coordMul;
    102         int4 coord1 = baseCoord >> (int4)15;
    103         //int4 coord2 = min(coord1 + 1, gDims - 1);
    104 
    105         int4 weight2 = baseCoord & 0x7fff;
    106         int4 weight1 = (int4)0x8000 - weight2;
    107 
    108         //ALOGE("coord1      %08x %08x %08x %08x", coord1.x, coord1.y, coord1.z, coord1.w);
    109         const uchar *bp2 = bp + (coord1.x * 4) + (coord1.y * stride_y) + (coord1.z * stride_z);
    110         const uchar4 *pt_00 = (const uchar4 *)&bp2[0];
    111         const uchar4 *pt_10 = (const uchar4 *)&bp2[stride_y];
    112         const uchar4 *pt_01 = (const uchar4 *)&bp2[stride_z];
    113         const uchar4 *pt_11 = (const uchar4 *)&bp2[stride_y + stride_z];
    114 
    115         uint4 v000 = convert_uint4(pt_00[0]);
    116         uint4 v100 = convert_uint4(pt_00[1]);
    117         uint4 v010 = convert_uint4(pt_10[0]);
    118         uint4 v110 = convert_uint4(pt_10[1]);
    119         uint4 v001 = convert_uint4(pt_01[0]);
    120         uint4 v101 = convert_uint4(pt_01[1]);
    121         uint4 v011 = convert_uint4(pt_11[0]);
    122         uint4 v111 = convert_uint4(pt_11[1]);
    123 
    124         uint4 yz00 = ((v000 * weight1.x) + (v100 * weight2.x)) >> (int4)7;
    125         uint4 yz10 = ((v010 * weight1.x) + (v110 * weight2.x)) >> (int4)7;
    126         uint4 yz01 = ((v001 * weight1.x) + (v101 * weight2.x)) >> (int4)7;
    127         uint4 yz11 = ((v011 * weight1.x) + (v111 * weight2.x)) >> (int4)7;
    128 
    129         uint4 z0 = ((yz00 * weight1.y) + (yz10 * weight2.y)) >> (int4)15;
    130         uint4 z1 = ((yz01 * weight1.y) + (yz11 * weight2.y)) >> (int4)15;
    131 
    132         uint4 v = ((z0 * weight1.z) + (z1 * weight2.z)) >> (int4)15;
    133         uint4 v2 = (v + 0x7f) >> (int4)8;
    134 
    135         uchar4 ret = convert_uchar4(v2);
    136         ret.w = in->w;
    137 
    138         #if 0
    139         if (!x1) {
    140             ALOGE("in          %08x %08x %08x %08x", in->r, in->g, in->b, in->a);
    141             ALOGE("baseCoord   %08x %08x %08x %08x", baseCoord.x, baseCoord.y, baseCoord.z, baseCoord.w);
    142             ALOGE("coord1      %08x %08x %08x %08x", coord1.x, coord1.y, coord1.z, coord1.w);
    143             ALOGE("weight1     %08x %08x %08x %08x", weight1.x, weight1.y, weight1.z, weight1.w);
    144             ALOGE("weight2     %08x %08x %08x %08x", weight2.x, weight2.y, weight2.z, weight2.w);
    145 
    146             ALOGE("v000        %08x %08x %08x %08x", v000.x, v000.y, v000.z, v000.w);
    147             ALOGE("v100        %08x %08x %08x %08x", v100.x, v100.y, v100.z, v100.w);
    148             ALOGE("yz00        %08x %08x %08x %08x", yz00.x, yz00.y, yz00.z, yz00.w);
    149             ALOGE("z0          %08x %08x %08x %08x", z0.x, z0.y, z0.z, z0.w);
    150 
    151             ALOGE("v           %08x %08x %08x %08x", v.x, v.y, v.z, v.w);
    152             ALOGE("v2          %08x %08x %08x %08x", v2.x, v2.y, v2.z, v2.w);
    153         }
    154         #endif
    155         *out = ret;
    156 
    157 
    158         in++;
    159         out++;
    160         x1++;
    161     }
    162 }
    163 
    164 RsdCpuScriptIntrinsic3DLUT::RsdCpuScriptIntrinsic3DLUT(
    165     RsdCpuReferenceImpl *ctx, const Script *s, const Element *e) :
    166         RsdCpuScriptIntrinsic(ctx, s, e, RS_SCRIPT_INTRINSIC_ID_3DLUT) {
    167 
    168     mRootPtr = &kernel;
    169 }
    170 
    171 RsdCpuScriptIntrinsic3DLUT::~RsdCpuScriptIntrinsic3DLUT() {
    172 }
    173 
    174 void RsdCpuScriptIntrinsic3DLUT::populateScript(Script *s) {
    175     s->mHal.info.exportedVariableCount = 1;
    176 }
    177 
    178 void RsdCpuScriptIntrinsic3DLUT::invokeFreeChildren() {
    179     mLUT.clear();
    180 }
    181 
    182 
    183 RsdCpuScriptImpl * rsdIntrinsic_3DLUT(RsdCpuReferenceImpl *ctx,
    184                                     const Script *s, const Element *e) {
    185 
    186     return new RsdCpuScriptIntrinsic3DLUT(ctx, s, e);
    187 }
    188