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
21using namespace android;
22using namespace android::renderscript;
23
24namespace android {
25namespace renderscript {
26
27
28class RsdCpuScriptIntrinsicLUT : public RsdCpuScriptIntrinsic {
29public:
30    virtual void populateScript(Script *);
31    virtual void invokeFreeChildren();
32
33    virtual void setGlobalObj(uint32_t slot, ObjectBase *data);
34
35    virtual ~RsdCpuScriptIntrinsicLUT();
36    RsdCpuScriptIntrinsicLUT(RsdCpuReferenceImpl *ctx, const Script *s, const Element *e);
37
38protected:
39    ObjectBaseRef<Allocation> lut;
40
41    static void kernel(const RsForEachStubParamStruct *p,
42                       uint32_t xstart, uint32_t xend,
43                       uint32_t instep, uint32_t outstep);
44};
45
46}
47}
48
49
50void RsdCpuScriptIntrinsicLUT::setGlobalObj(uint32_t slot, ObjectBase *data) {
51    rsAssert(slot == 0);
52    lut.set(static_cast<Allocation *>(data));
53}
54
55
56void RsdCpuScriptIntrinsicLUT::kernel(const RsForEachStubParamStruct *p,
57                                      uint32_t xstart, uint32_t xend,
58                                      uint32_t instep, uint32_t outstep) {
59    RsdCpuScriptIntrinsicLUT *cp = (RsdCpuScriptIntrinsicLUT *)p->usr;
60
61    uchar *out = (uchar *)p->out;
62    const uchar *in = (uchar *)p->in;
63    uint32_t x1 = xstart;
64    uint32_t x2 = xend;
65
66    const uchar *tr = (const uchar *)cp->lut->mHal.drvState.lod[0].mallocPtr;
67    const uchar *tg = &tr[256];
68    const uchar *tb = &tg[256];
69    const uchar *ta = &tb[256];
70
71    while (x1 < x2) {
72        out[0] = tr[in[0]];
73        out[1] = tg[in[1]];
74        out[2] = tb[in[2]];
75        out[3] = ta[in[3]];
76        in += 4;
77        out += 4;
78        x1++;
79    }
80}
81
82RsdCpuScriptIntrinsicLUT::RsdCpuScriptIntrinsicLUT(RsdCpuReferenceImpl *ctx,
83                                                   const Script *s, const Element *e)
84            : RsdCpuScriptIntrinsic(ctx, s, e, RS_SCRIPT_INTRINSIC_ID_LUT) {
85
86    mRootPtr = &kernel;
87}
88
89RsdCpuScriptIntrinsicLUT::~RsdCpuScriptIntrinsicLUT() {
90}
91
92void RsdCpuScriptIntrinsicLUT::populateScript(Script *s) {
93    s->mHal.info.exportedVariableCount = 1;
94}
95
96void RsdCpuScriptIntrinsicLUT::invokeFreeChildren() {
97    lut.clear();
98}
99
100
101RsdCpuScriptImpl * rsdIntrinsic_LUT(RsdCpuReferenceImpl *ctx,
102                                    const Script *s, const Element *e) {
103
104    return new RsdCpuScriptIntrinsicLUT(ctx, s, e);
105}
106
107
108