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
20using android::RSC::Sampler;
21using android::RSC::sp;
22
23Sampler::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
33Sampler::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
44RsSamplerValue Sampler::getMinification() {
45    return mMin;
46}
47
48RsSamplerValue Sampler::getMagnification() {
49    return mMag;
50}
51
52RsSamplerValue Sampler::getWrapS() {
53    return mWrapS;
54}
55
56RsSamplerValue Sampler::getWrapT() {
57    return mWrapT;
58}
59
60float Sampler::getAnisotropy() {
61    return mAniso;
62}
63
64sp<Sampler> Sampler::create(const 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(const 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
79CREATE_SAMPLER(CLAMP_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP);
80CREATE_SAMPLER(CLAMP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP);
81CREATE_SAMPLER(CLAMP_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP);
82CREATE_SAMPLER(WRAP_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_WRAP, RS_SAMPLER_WRAP);
83CREATE_SAMPLER(WRAP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_WRAP, RS_SAMPLER_WRAP);
84CREATE_SAMPLER(WRAP_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_WRAP, RS_SAMPLER_WRAP);
85CREATE_SAMPLER(MIRRORED_REPEAT_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, RS_SAMPLER_MIRRORED_REPEAT, RS_SAMPLER_MIRRORED_REPEAT);
86CREATE_SAMPLER(MIRRORED_REPEAT_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_MIRRORED_REPEAT, RS_SAMPLER_MIRRORED_REPEAT);
87CREATE_SAMPLER(MIRRORED_REPEAT_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR_MIP_LINEAR, RS_SAMPLER_LINEAR, RS_SAMPLER_MIRRORED_REPEAT, RS_SAMPLER_MIRRORED_REPEAT);
88