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
|
/*
* 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 test only works with the GPU backend.
#include "gm.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrTest.h"
#include "effects/GrTextureDomain.h"
#include "SkBitmap.h"
#include "SkGr.h"
#include "SkGradientShader.h"
namespace skiagm {
/**
* This GM directly exercises GrTextureDomainEffect.
*/
class TextureDomainEffect : public GM {
public:
TextureDomainEffect() {
this->setBGColor(0xFFFFFFFF);
}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return SkString("texture_domain_effect");
}
virtual SkISize onISize() SK_OVERRIDE {
const SkScalar canvasWidth = kDrawPad +
(kTargetWidth + 2 * kDrawPad) * GrTextureDomain::kModeCount +
kTestPad * GrTextureDomain::kModeCount;
return SkISize::Make(SkScalarCeilToInt(canvasWidth), 800);
}
virtual uint32_t onGetFlags() const SK_OVERRIDE {
// This is a GPU-specific GM.
return kGPUOnly_Flag;
}
virtual void onOnceBeforeDraw() SK_OVERRIDE {
fBmp.allocN32Pixels(kTargetWidth, kTargetHeight);
SkCanvas canvas(fBmp);
canvas.clear(0x00000000);
SkPaint paint;
SkColor colors1[] = { SK_ColorCYAN, SK_ColorLTGRAY, SK_ColorGRAY };
paint.setShader(SkGradientShader::CreateSweep(65.f, 75.f, colors1,
NULL, SK_ARRAY_COUNT(colors1)))->unref();
canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f,
fBmp.width() + 10.f, fBmp.height() + 10.f), paint);
SkColor colors2[] = { SK_ColorMAGENTA, SK_ColorLTGRAY, SK_ColorYELLOW };
paint.setShader(SkGradientShader::CreateSweep(45.f, 55.f, colors2, NULL,
SK_ARRAY_COUNT(colors2)))->unref();
paint.setXfermodeMode(SkXfermode::kDarken_Mode);
canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f,
fBmp.width() + 10.f, fBmp.height() + 10.f), paint);
SkColor colors3[] = { SK_ColorBLUE, SK_ColorLTGRAY, SK_ColorGREEN };
paint.setShader(SkGradientShader::CreateSweep(25.f, 35.f, colors3, NULL,
SK_ARRAY_COUNT(colors3)))->unref();
paint.setXfermodeMode(SkXfermode::kLighten_Mode);
canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f,
fBmp.width() + 10.f, fBmp.height() + 10.f), paint);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget();
if (NULL == rt) {
return;
}
GrContext* context = rt->getContext();
if (NULL == context) {
return;
}
GrTestTarget tt;
context->getTestTarget(&tt);
if (NULL == tt.target()) {
SkDEBUGFAIL("Couldn't get Gr test target.");
return;
}
SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(context, fBmp, NULL));
if (!texture) {
return;
}
SkTArray<SkMatrix> textureMatrices;
textureMatrices.push_back().setIDiv(texture->width(), texture->height());
textureMatrices.push_back() = textureMatrices[0];
textureMatrices.back().postScale(1.5f, 0.85f);
textureMatrices.push_back() = textureMatrices[0];
textureMatrices.back().preRotate(45.f, texture->width() / 2.f, texture->height() / 2.f);
const SkIRect texelDomains[] = {
fBmp.bounds(),
SkIRect::MakeXYWH(fBmp.width() / 4,
fBmp.height() / 4,
fBmp.width() / 2,
fBmp.height() / 2),
};
SkRect renderRect = SkRect::Make(fBmp.bounds());
renderRect.outset(kDrawPad, kDrawPad);
SkScalar y = kDrawPad + kTestPad;
for (int tm = 0; tm < textureMatrices.count(); ++tm) {
for (size_t d = 0; d < SK_ARRAY_COUNT(texelDomains); ++d) {
SkScalar x = kDrawPad + kTestPad;
for (int m = 0; m < GrTextureDomain::kModeCount; ++m) {
GrTextureDomain::Mode mode = (GrTextureDomain::Mode) m;
SkAutoTUnref<GrFragmentProcessor> fp(
GrTextureDomainEffect::Create(texture, textureMatrices[tm],
GrTextureDomain::MakeTexelDomain(texture,
texelDomains[d]),
mode, GrTextureParams::kNone_FilterMode));
if (!fp) {
continue;
}
SkMatrix viewMatrix;
viewMatrix.setTranslate(x, y);
GrDrawState drawState(viewMatrix);
drawState.setRenderTarget(rt);
drawState.setColor(0xffffffff);
drawState.addColorProcessor(fp);
tt.target()->drawSimpleRect(&drawState, renderRect);
x += renderRect.width() + kTestPad;
}
y += renderRect.height() + kTestPad;
}
}
}
private:
static const SkScalar kDrawPad;
static const SkScalar kTestPad;
static const int kTargetWidth = 100;
static const int kTargetHeight = 100;
SkBitmap fBmp;
typedef GM INHERITED;
};
// Windows builds did not like SkScalar initialization in class :(
const SkScalar TextureDomainEffect::kDrawPad = 10.f;
const SkScalar TextureDomainEffect::kTestPad = 10.f;
DEF_GM( return SkNEW(TextureDomainEffect); )
}
#endif
|
