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
|
/*
* 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 "GrTextureMaker.h"
#include "GrContext.h"
#include "GrGpu.h"
#include "GrResourceProvider.h"
sk_sp<GrTextureProxy> GrTextureMaker::refTextureProxyForParams(const GrSamplerParams& params,
SkColorSpace* dstColorSpace,
sk_sp<SkColorSpace>* texColorSpace,
SkScalar scaleAdjust[2]) {
CopyParams copyParams;
bool willBeMipped = params.filterMode() == GrSamplerParams::kMipMap_FilterMode;
if (!fContext->caps()->mipMapSupport()) {
willBeMipped = false;
}
if (texColorSpace) {
*texColorSpace = this->getColorSpace(dstColorSpace);
}
sk_sp<GrTextureProxy> original(this->refOriginalTextureProxy(willBeMipped, dstColorSpace,
AllowedTexGenType::kCheap));
if (original) {
if (!fContext->getGpu()->isACopyNeededForTextureParams(original.get(), params, ©Params,
scaleAdjust)) {
return original;
}
} else {
if (!fContext->getGpu()->isACopyNeededForTextureParams(this->width(), this->height(),
params, ©Params, scaleAdjust)) {
return this->refOriginalTextureProxy(willBeMipped, dstColorSpace,
AllowedTexGenType::kAny);
}
}
GrUniqueKey copyKey;
this->makeCopyKey(copyParams, ©Key, dstColorSpace);
if (copyKey.isValid()) {
sk_sp<GrTextureProxy> result(fContext->resourceProvider()->findProxyByUniqueKey(copyKey));
if (result) {
return result;
}
}
sk_sp<GrTextureProxy> result;
if (original) {
result = CopyOnGpu(fContext, std::move(original), nullptr, copyParams);
} else {
result = this->generateTextureProxyForParams(copyParams, willBeMipped, dstColorSpace);
}
if (!result) {
return nullptr;
}
if (copyKey.isValid()) {
fContext->resourceProvider()->assignUniqueKeyToProxy(copyKey, result.get());
this->didCacheCopy(copyKey);
}
return result;
}
sk_sp<GrFragmentProcessor> GrTextureMaker::createFragmentProcessor(
const SkMatrix& textureMatrix,
const SkRect& constraintRect,
FilterConstraint filterConstraint,
bool coordsLimitedToConstraintRect,
const GrSamplerParams::FilterMode* filterOrNullForBicubic,
SkColorSpace* dstColorSpace) {
const GrSamplerParams::FilterMode* fmForDetermineDomain = filterOrNullForBicubic;
if (filterOrNullForBicubic && GrSamplerParams::kMipMap_FilterMode == *filterOrNullForBicubic &&
kYes_FilterConstraint == filterConstraint) {
// TODo: Here we should force a copy restricted to the constraintRect since MIP maps will
// read outside the constraint rect. However, as in the adjuster case, we aren't currently
// doing that.
// We instead we compute the domain as though were bilerping which is only correct if we
// only sample level 0.
static const GrSamplerParams::FilterMode kBilerp = GrSamplerParams::kBilerp_FilterMode;
fmForDetermineDomain = &kBilerp;
}
GrSamplerParams params;
if (filterOrNullForBicubic) {
params.reset(SkShader::kClamp_TileMode, *filterOrNullForBicubic);
} else {
// Bicubic doesn't use filtering for it's texture accesses.
params.reset(SkShader::kClamp_TileMode, GrSamplerParams::kNone_FilterMode);
}
sk_sp<SkColorSpace> texColorSpace;
SkScalar scaleAdjust[2] = { 1.0f, 1.0f };
sk_sp<GrTextureProxy> proxy(this->refTextureProxyForParams(params, dstColorSpace,
&texColorSpace,
scaleAdjust));
if (!proxy) {
return nullptr;
}
SkMatrix adjustedMatrix = textureMatrix;
adjustedMatrix.postScale(scaleAdjust[0], scaleAdjust[1]);
SkRect domain;
DomainMode domainMode =
DetermineDomainMode(constraintRect, filterConstraint, coordsLimitedToConstraintRect,
proxy.get(),
nullptr, fmForDetermineDomain, &domain);
SkASSERT(kTightCopy_DomainMode != domainMode);
sk_sp<GrColorSpaceXform> colorSpaceXform = GrColorSpaceXform::Make(texColorSpace.get(),
dstColorSpace);
return CreateFragmentProcessorForDomainAndFilter(fContext->resourceProvider(), std::move(proxy),
std::move(colorSpaceXform),
adjustedMatrix, domainMode, domain,
filterOrNullForBicubic);
}
sk_sp<GrTextureProxy> GrTextureMaker::generateTextureProxyForParams(const CopyParams& copyParams,
bool willBeMipped,
SkColorSpace* dstColorSpace) {
sk_sp<GrTextureProxy> original(this->refOriginalTextureProxy(willBeMipped, dstColorSpace,
AllowedTexGenType::kAny));
if (!original) {
return nullptr;
}
return CopyOnGpu(fContext, std::move(original), nullptr, copyParams);
}
|
