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
|
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/*
* This is a straightforward test of floating point textures, which are
* supported on some platforms. As of right now, this test only supports
* 32 bit floating point textures, and indeed floating point test values
* have been selected to require 32 bits of precision and full IEEE conformance
*/
#include "include/core/SkAlphaType.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkString.h"
#include "include/gpu/GpuTypes.h"
#include "include/gpu/GrDirectContext.h"
#include "include/gpu/GrTypes.h"
#include "include/private/base/SkTDArray.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"
#include "src/base/SkHalf.h"
#include "src/gpu/ganesh/GrDirectContextPriv.h"
#include "src/gpu/ganesh/GrImageInfo.h"
#include "src/gpu/ganesh/GrPixmap.h"
#include "src/gpu/ganesh/GrSurfaceProxyView.h"
#include "src/gpu/ganesh/SurfaceContext.h"
#include "tests/CtsEnforcement.h"
#include "tests/Test.h"
#include "tools/gpu/ProxyUtils.h"
#include <cstring>
#include <initializer_list>
#include <memory>
#include <utility>
struct GrContextOptions;
static const int DEV_W = 100, DEV_H = 100;
template <typename T>
void runFPTest(skiatest::Reporter* reporter, GrDirectContext* dContext,
T min, T max, T epsilon, T maxInt,
int arraySize, GrColorType colorType) {
if (0 != arraySize % 4) {
REPORT_FAILURE(reporter, "(0 != arraySize % 4)",
SkString("arraySize must be divisible by 4."));
return;
}
SkTDArray<T> controlPixelData, readBuffer;
controlPixelData.resize(arraySize);
readBuffer.resize(arraySize);
for (int i = 0; i < arraySize; i += 4) {
controlPixelData[i + 0] = min;
controlPixelData[i + 1] = max;
controlPixelData[i + 2] = epsilon;
controlPixelData[i + 3] = maxInt;
}
for (auto origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
GrImageInfo info(colorType, kPremul_SkAlphaType, nullptr, {DEV_W, DEV_H});
GrCPixmap controlPixmap(info, controlPixelData.begin(), info.minRowBytes());
auto fpView = sk_gpu_test::MakeTextureProxyViewFromData(dContext,
GrRenderable::kYes,
origin,
controlPixmap);
// Floating point textures are NOT supported everywhere
if (!fpView) {
continue;
}
auto sc = dContext->priv().makeSC(std::move(fpView), info.colorInfo());
REPORTER_ASSERT(reporter, sc);
GrPixmap readPixmap(info, readBuffer.begin(), info.minRowBytes());
bool result = sc->readPixels(dContext, readPixmap, {0, 0});
REPORTER_ASSERT(reporter, result);
REPORTER_ASSERT(reporter,
!memcmp(readBuffer.begin(), controlPixelData.begin(), readBuffer.size_bytes()));
}
}
static const int HALF_ALPHA_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 1 /*alpha-only*/;
static const SkHalf kMaxIntegerRepresentableInHalfFloatingPoint = 0x6800; // 2 ^ 11
DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(HalfFloatAlphaTextureTest,
reporter,
ctxInfo,
CtsEnforcement::kApiLevel_T) {
auto direct = ctxInfo.directContext();
runFPTest<SkHalf>(reporter, direct, SK_HalfMin, SK_HalfMax, SK_HalfEpsilon,
kMaxIntegerRepresentableInHalfFloatingPoint, HALF_ALPHA_CONTROL_ARRAY_SIZE,
GrColorType::kAlpha_F16);
}
static const int HALF_RGBA_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 4 /*RGBA*/;
DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(HalfFloatRGBATextureTest,
reporter,
ctxInfo,
CtsEnforcement::kApiLevel_T) {
auto direct = ctxInfo.directContext();
runFPTest<SkHalf>(reporter, direct, SK_HalfMin, SK_HalfMax, SK_HalfEpsilon,
kMaxIntegerRepresentableInHalfFloatingPoint, HALF_RGBA_CONTROL_ARRAY_SIZE,
GrColorType::kRGBA_F16);
}
|
