1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkHalf.h"
#include "SkRasterPipeline.h"
#include "../src/jumper/SkJumper.h"
DEF_TEST(SkRasterPipeline, r) {
// Build and run a simple pipeline to exercise SkRasterPipeline,
// drawing 50% transparent blue over opaque red in half-floats.
uint64_t red = 0x3c00000000003c00ull,
blue = 0x3800380000000000ull,
result;
SkJumper_MemoryCtx load_s_ctx = { &blue, 0 },
load_d_ctx = { &red, 0 },
store_ctx = { &result, 0 };
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline::load_f16, &load_s_ctx);
p.append(SkRasterPipeline::load_f16_dst, &load_d_ctx);
p.append(SkRasterPipeline::srcover);
p.append(SkRasterPipeline::store_f16, &store_ctx);
p.run(0,0,1,1);
// We should see half-intensity magenta.
REPORTER_ASSERT(r, ((result >> 0) & 0xffff) == 0x3800);
REPORTER_ASSERT(r, ((result >> 16) & 0xffff) == 0x0000);
REPORTER_ASSERT(r, ((result >> 32) & 0xffff) == 0x3800);
REPORTER_ASSERT(r, ((result >> 48) & 0xffff) == 0x3c00);
}
DEF_TEST(SkRasterPipeline_empty, r) {
// No asserts... just a test that this is safe to run.
SkRasterPipeline_<256> p;
p.run(0,0,20,1);
}
DEF_TEST(SkRasterPipeline_nonsense, r) {
// No asserts... just a test that this is safe to run and terminates.
// srcover() calls st->next(); this makes sure we've always got something there to call.
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline::srcover);
p.run(0,0,20,1);
}
DEF_TEST(SkRasterPipeline_JIT, r) {
// This tests a couple odd corners that a JIT backend can stumble over.
uint32_t buf[72] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
SkJumper_MemoryCtx src = { buf + 0, 0 },
dst = { buf + 36, 0 };
// Copy buf[x] to buf[x+36] for x in [15,35).
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline:: load_8888, &src);
p.append(SkRasterPipeline::store_8888, &dst);
p.run(15,0, 20,1);
for (int i = 0; i < 36; i++) {
if (i < 15 || i == 35) {
REPORTER_ASSERT(r, buf[i+36] == 0);
} else {
REPORTER_ASSERT(r, buf[i+36] == (uint32_t)(i - 11));
}
}
}
static uint16_t h(float f) {
// Remember, a float is 1-8-23 (sign-exponent-mantissa) with 127 exponent bias.
uint32_t sem;
memcpy(&sem, &f, sizeof(sem));
uint32_t s = sem & 0x80000000,
em = sem ^ s;
// Convert to 1-5-10 half with 15 bias, flushing denorm halfs (including zero) to zero.
auto denorm = (int32_t)em < 0x38800000; // I32 comparison is often quicker, and always safe
// here.
return denorm ? SkTo<uint16_t>(0)
: SkTo<uint16_t>((s>>16) + (em>>13) - ((127-15)<<10));
}
static uint16_t n(uint16_t x) {
return (x<<8) | (x>>8);
}
static float a(uint16_t x) {
return (1/65535.0f) * x;
}
DEF_TEST(SkRasterPipeline_tail, r) {
{
float data[][4] = {
{00, 01, 02, 03},
{10, 11, 12, 13},
{20, 21, 22, 23},
{30, 31, 32, 33},
};
float buffer[4][4];
SkJumper_MemoryCtx src = { &data[0][0], 0 },
dst = { &buffer[0][0], 0 };
for (unsigned i = 1; i <= 4; i++) {
memset(buffer, 0xff, sizeof(buffer));
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline::load_f32, &src);
p.append(SkRasterPipeline::store_f32, &dst);
p.run(0,0, i,1);
for (unsigned j = 0; j < i; j++) {
for (unsigned k = 0; k < 4; k++) {
if (buffer[j][k] != data[j][k]) {
ERRORF(r, "(%u, %u) - a: %g r: %g\n", j, k, data[j][k], buffer[j][k]);
}
}
}
for (int j = i; j < 4; j++) {
for (auto f : buffer[j]) {
REPORTER_ASSERT(r, SkScalarIsNaN(f));
}
}
}
}
{
uint16_t data[][4] = {
{h(00), h(01), h(02), h(03)},
{h(10), h(11), h(12), h(13)},
{h(20), h(21), h(22), h(23)},
{h(30), h(31), h(32), h(33)},
};
uint16_t buffer[4][4];
SkJumper_MemoryCtx src = { &data[0][0], 0 },
dst = { &buffer[0][0], 0 };
for (unsigned i = 1; i <= 4; i++) {
memset(buffer, 0xff, sizeof(buffer));
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline::load_f16, &src);
p.append(SkRasterPipeline::store_f16, &dst);
p.run(0,0, i,1);
for (unsigned j = 0; j < i; j++) {
REPORTER_ASSERT(r,
!memcmp(&data[j][0], &buffer[j][0], sizeof(buffer[j])));
}
for (int j = i; j < 4; j++) {
for (auto f : buffer[j]) {
REPORTER_ASSERT(r, f == 0xffff);
}
}
}
}
{
uint16_t data[][3] = {
{n(00), n(01), n(02)},
{n(10), n(11), n(12)},
{n(20), n(21), n(22)},
{n(30), n(31), n(32)}
};
float answer[][4] = {
{a(00), a(01), a(02), 1.0f},
{a(10), a(11), a(12), 1.0f},
{a(20), a(21), a(22), 1.0f},
{a(30), a(31), a(32), 1.0f}
};
float buffer[4][4];
SkJumper_MemoryCtx src = { &data[0][0], 0 },
dst = { &buffer[0][0], 0 };
for (unsigned i = 1; i <= 4; i++) {
memset(buffer, 0xff, sizeof(buffer));
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline::load_rgb_u16_be, &src);
p.append(SkRasterPipeline::store_f32, &dst);
p.run(0,0, i,1);
for (unsigned j = 0; j < i; j++) {
for (unsigned k = 0; k < 4; k++) {
if (buffer[j][k] != answer[j][k]) {
ERRORF(r, "(%u, %u) - a: %g r: %g\n", j, k, answer[j][k], buffer[j][k]);
}
}
}
for (int j = i; j < 4; j++) {
for (auto f : buffer[j]) {
REPORTER_ASSERT(r, SkScalarIsNaN(f));
}
}
}
}
}
DEF_TEST(SkRasterPipeline_lowp, r) {
uint32_t rgba[64];
for (int i = 0; i < 64; i++) {
rgba[i] = (4*i+0) << 0
| (4*i+1) << 8
| (4*i+2) << 16
| (4*i+3) << 24;
}
SkJumper_MemoryCtx ptr = { rgba, 0 };
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline::load_bgra, &ptr);
p.append(SkRasterPipeline::store_8888, &ptr);
p.run(0,0,64,1);
for (int i = 0; i < 64; i++) {
uint32_t want = (4*i+0) << 16
| (4*i+1) << 8
| (4*i+2) << 0
| (4*i+3) << 24;
if (rgba[i] != want) {
ERRORF(r, "got %08x, want %08x\n", rgba[i], want);
}
}
}
|
