1/*
2 * Copyright 2017 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkRasterPipeline.h"
9#include "Test.h"
10
11DEF_TEST(F16Stages, r) {
12    // Make sure SkRasterPipeline::load_f16 and store_f16 can handle a range of
13    // ordinary (0<=x<=1) and interesting (x<0, x>1) values.
14    float floats[16] = {
15        0.0f, 0.25f, 0.5f, 1.0f,
16        -1.25f, -0.5f, 1.25f, 2.0f,
17        0,0,0,0, 0,0,0,0,  // pad a bit to make sure we qualify for platform-specific code
18    };
19    uint16_t halfs[16] = {0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0};
20
21    float*    f32 = floats;
22    uint16_t* f16 = halfs;
23
24    {
25        SkRasterPipeline_<256> p;
26        p.append(SkRasterPipeline:: load_f32, &f32);
27        p.append(SkRasterPipeline::store_f16, &f16);
28        p.run(0,0,16/4);
29    }
30    REPORTER_ASSERT(r, f16[0] == 0x0000);
31    REPORTER_ASSERT(r, f16[1] == 0x3400);
32    REPORTER_ASSERT(r, f16[2] == 0x3800);
33    REPORTER_ASSERT(r, f16[3] == 0x3c00);
34    REPORTER_ASSERT(r, f16[4] == 0xbd00);
35    REPORTER_ASSERT(r, f16[5] == 0xb800);
36    REPORTER_ASSERT(r, f16[6] == 0x3d00);
37    REPORTER_ASSERT(r, f16[7] == 0x4000);
38
39    {
40        SkRasterPipeline_<256> p;
41        p.append(SkRasterPipeline:: load_f16, &f16);
42        p.append(SkRasterPipeline::store_f32, &f32);
43        p.run(0,0,16/4);
44    }
45    REPORTER_ASSERT(r, f32[0] ==  0.00f);
46    REPORTER_ASSERT(r, f32[1] ==  0.25f);
47    REPORTER_ASSERT(r, f32[2] ==  0.50f);
48    REPORTER_ASSERT(r, f32[3] ==  1.00f);
49    REPORTER_ASSERT(r, f32[4] == -1.25f);
50    REPORTER_ASSERT(r, f32[5] == -0.50f);
51    REPORTER_ASSERT(r, f32[6] ==  1.25f);
52    REPORTER_ASSERT(r, f32[7] ==  2.00f);
53}
54