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
|
/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
// Use QtQuick 2.8 to get GraphicsInfo and the other new properties
import QtQuick 2.8
Item {
Rectangle {
color: "gray"
anchors.margins: 10
anchors.fill: parent
Image {
id: image1
source: "qrc:/qt.png"
}
ShaderEffectSource {
id: effectSource1
sourceItem: image1
hideSource: true
}
ShaderEffect { // wobble
id: eff
width: image1.width
height: image1.height
anchors.centerIn: parent
property variant source: effectSource1
property real amplitude: 0.04 * 0.2
property real frequency: 20
property real time: 0
NumberAnimation on time { loops: Animation.Infinite; from: 0; to: Math.PI * 2; duration: 600 }
property bool customVertexShader: false // the effect is fine with the default vs, but toggle this to test
property bool useHLSLSourceString: false // toggle to provide HLSL shaders as strings instead of bytecode in files
property string glslVertexShader:
"uniform highp mat4 qt_Matrix;" +
"attribute highp vec4 qt_Vertex;" +
"attribute highp vec2 qt_MultiTexCoord0;" +
"varying highp vec2 qt_TexCoord0;" +
"void main() {" +
" qt_TexCoord0 = qt_MultiTexCoord0;" +
" gl_Position = qt_Matrix * qt_Vertex;" +
"}"
property string glslFragmentShader:
"uniform sampler2D source;" +
"uniform highp float amplitude;" +
"uniform highp float frequency;" +
"uniform highp float time;" +
"uniform lowp float qt_Opacity;" +
"varying highp vec2 qt_TexCoord0;" +
"void main() {" +
" highp vec2 p = sin(time + frequency * qt_TexCoord0);" +
" gl_FragColor = texture2D(source, qt_TexCoord0 + amplitude * vec2(p.y, -p.x)) * qt_Opacity;" +
"}"
property string hlslVertexShader: "cbuffer ConstantBuffer : register(b0) {" +
" float4x4 qt_Matrix;" +
" float qt_Opacity; }" +
"struct PSInput {" +
" float4 position : SV_POSITION;" +
" float2 coord : TEXCOORD0; };" +
"PSInput main(float4 position : POSITION, float2 coord : TEXCOORD0) {" +
" PSInput result;" +
" result.position = mul(qt_Matrix, position);" +
" result.coord = coord;" +
" return result;" +
"}";
property string hlslPixelShader:"cbuffer ConstantBuffer : register(b0) {" +
" float4x4 qt_Matrix;" +
" float qt_Opacity;" +
" float amplitude;" +
" float frequency;" +
" float time; }" +
"Texture2D source : register(t0);" +
"SamplerState sourceSampler : register(s0);" +
"float4 main(float4 position : SV_POSITION, float2 coord : TEXCOORD0) : SV_TARGET" +
"{" +
" float2 p = sin(time + frequency * coord);" +
" return source.Sample(sourceSampler, coord + amplitude * float2(p.y, -p.x)) * qt_Opacity;" +
"}";
property string hlslVertexShaderByteCode: "qrc:/vs_wobble.cso"
property string hlslPixelShaderByteCode: "qrc:/ps_wobble.cso"
vertexShader: customVertexShader ? (GraphicsInfo.shaderType === GraphicsInfo.HLSL
? (useHLSLSourceString ? hlslVertexShader : hlslVertexShaderByteCode)
: (GraphicsInfo.shaderType === GraphicsInfo.GLSL ? glslVertexShader : "")) : ""
fragmentShader: GraphicsInfo.shaderType === GraphicsInfo.HLSL
? (useHLSLSourceString ? hlslPixelShader : hlslPixelShaderByteCode)
: (GraphicsInfo.shaderType === GraphicsInfo.GLSL ? glslFragmentShader : "")
}
Image {
id: image2
source: "qrc:/face-smile.png"
}
ShaderEffectSource {
id: effectSource2
sourceItem: image2
hideSource: true
}
ShaderEffect { // dropshadow
id: eff2
width: image2.width
height: image2.height
scale: 2
x: 40
y: 40
property variant source: effectSource2
property string glslShaderPass1: "
uniform lowp float qt_Opacity;
uniform sampler2D source;
uniform highp vec2 delta;
varying highp vec2 qt_TexCoord0;
void main() {
gl_FragColor = (0.0538 * texture2D(source, qt_TexCoord0 - 3.182 * delta)
+ 0.3229 * texture2D(source, qt_TexCoord0 - 1.364 * delta)
+ 0.2466 * texture2D(source, qt_TexCoord0)
+ 0.3229 * texture2D(source, qt_TexCoord0 + 1.364 * delta)
+ 0.0538 * texture2D(source, qt_TexCoord0 + 3.182 * delta)) * qt_Opacity;
}"
property string glslShaderPass2: "
uniform lowp float qt_Opacity;
uniform highp vec2 offset;
uniform sampler2D source;
uniform sampler2D shadow;
uniform highp float darkness;
uniform highp vec2 delta;
varying highp vec2 qt_TexCoord0;
void main() {
lowp vec4 fg = texture2D(source, qt_TexCoord0);
lowp vec4 bg = texture2D(shadow, qt_TexCoord0 + delta);
gl_FragColor = (fg + vec4(0., 0., 0., darkness * bg.a) * (1. - fg.a)) * qt_Opacity;
}"
property variant shadow: ShaderEffectSource {
sourceItem: ShaderEffect {
width: eff2.width
height: eff2.height
property variant delta: Qt.size(0.0, 1.0 / height)
property variant source: ShaderEffectSource {
sourceItem: ShaderEffect {
id: innerEff
width: eff2.width
height: eff2.height
property variant delta: Qt.size(1.0 / width, 0.0)
property variant source: effectSource2
fragmentShader: GraphicsInfo.shaderType === GraphicsInfo.HLSL ? "qrc:/ps_shadow1.cso" : (GraphicsInfo.shaderType === GraphicsInfo.GLSL ? eff2.glslShaderPass1 : "")
}
}
fragmentShader: GraphicsInfo.shaderType === GraphicsInfo.HLSL ? "qrc:/ps_shadow1.cso" : (GraphicsInfo.shaderType === GraphicsInfo.GLSL ? eff2.glslShaderPass1: "")
}
}
property real angle: 0
property variant offset: Qt.point(5.0 * Math.cos(angle), 5.0 * Math.sin(angle))
NumberAnimation on angle { loops: Animation.Infinite; from: 0; to: Math.PI * 2; duration: 6000 }
property variant delta: Qt.size(offset.x / width, offset.y / height)
property real darkness: 0.5
fragmentShader: GraphicsInfo.shaderType === GraphicsInfo.HLSL ? "qrc:/ps_shadow2.cso" : (GraphicsInfo.shaderType === GraphicsInfo.GLSL ? glslShaderPass2 : "")
}
Column {
anchors.bottom: parent.bottom
Text {
color: "yellow"
font.pointSize: 24
text: "Shader effect is " + (GraphicsInfo.shaderType === GraphicsInfo.HLSL ? "HLSL" : (GraphicsInfo.shaderType === GraphicsInfo.GLSL ? "GLSL" : "UNKNOWN")) + " based";
}
Text {
text: GraphicsInfo.shaderType + " " + GraphicsInfo.shaderCompilationType + " " + GraphicsInfo.shaderSourceType
}
Text {
text: eff.status + " " + eff.log
}
}
}
}
|
