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