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      1 /*
      2  * Copyright (C) 2008-2012 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 #include "RenderScript.h"
     18 #include "rsCppInternal.h"
     19 
     20 using namespace android;
     21 using namespace RSC;
     22 
     23 Sampler::Sampler(sp<RS> rs, void* id):
     24     BaseObj(id, rs)
     25 {
     26     RsSamplerValue mMin = RS_SAMPLER_INVALID;
     27     RsSamplerValue mMag = RS_SAMPLER_INVALID;
     28     RsSamplerValue mWrapS = RS_SAMPLER_INVALID;
     29     RsSamplerValue mWrapT = RS_SAMPLER_INVALID;
     30     float mAniso = 0.f;
     31 }
     32 
     33 Sampler::Sampler(sp<RS> rs, void* id, RsSamplerValue min, RsSamplerValue mag,
     34                  RsSamplerValue wrapS, RsSamplerValue wrapT, float anisotropy):
     35     BaseObj(id, rs)
     36 {
     37     RsSamplerValue mMin = min;
     38     RsSamplerValue mMag = mag;
     39     RsSamplerValue mWrapS = wrapS;
     40     RsSamplerValue mWrapT = wrapT;
     41     float mAniso = anisotropy;
     42 }
     43 
     44 RsSamplerValue Sampler::getMinification() {
     45     return mMin;
     46 }
     47 
     48 RsSamplerValue Sampler::getMagnification() {
     49     return mMag;
     50 }
     51 
     52 RsSamplerValue Sampler::getWrapS() {
     53     return mWrapS;
     54 }
     55 
     56 RsSamplerValue Sampler::getWrapT() {
     57     return mWrapT;
     58 }
     59 
     60 float Sampler::getAnisotropy() {
     61     return mAniso;
     62 }
     63 
     64 sp<Sampler> Sampler::create(sp<RS> rs, RsSamplerValue min, RsSamplerValue mag,
     65                             RsSamplerValue wrapS, RsSamplerValue wrapT, float anisotropy) {
     66     // We aren't supporting wrapR in C++ API atm, so always pass wrap for that.
     67     void* id = RS::dispatch->SamplerCreate(rs->getContext(), min, mag, wrapS, wrapT,
     68                                            RS_SAMPLER_WRAP, anisotropy);
     69     return new Sampler(rs, id, min, mag, wrapS, wrapT, anisotropy);
     70 }
     71 
     72 #define CREATE_SAMPLER(N, MIN, MAG, WRAPS, WRAPT) sp<const Sampler> Sampler::N(sp<RS> rs) { \
     73         if (rs->mSamplers.N == nullptr) {                                \
     74             rs->mSamplers.N = (create(rs, MIN, MAG, WRAPS, WRAPT, 0.f)); \
     75         }                                                                \
     76         return rs->mSamplers.N;                                          \
     77     }
     78 
     79 CREATE_SAMPLER(CLAMP_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP);
     80 CREATE_SAMPLER(CLAMP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP);
     81 CREATE_SAMPLER(CLAMP_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP);
     82 CREATE_SAMPLER(WRAP_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_WRAP, RS_SAMPLER_WRAP);
     83 CREATE_SAMPLER(WRAP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_WRAP, RS_SAMPLER_WRAP);
     84 CREATE_SAMPLER(WRAP_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_WRAP, RS_SAMPLER_WRAP);
     85 CREATE_SAMPLER(MIRRORED_REPEAT_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_MIRRORED_REPEAT, RS_SAMPLER_MIRRORED_REPEAT);
     86 CREATE_SAMPLER(MIRRORED_REPEAT_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_MIRRORED_REPEAT, RS_SAMPLER_MIRRORED_REPEAT);
     87 CREATE_SAMPLER(MIRRORED_REPEAT_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_MIRRORED_REPEAT, RS_SAMPLER_MIRRORED_REPEAT);
     88