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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qsgd3d12texture_p.h"
#include "qsgd3d12engine_p.h"
#include <private/qsgcontext_p.h>
QT_BEGIN_NAMESPACE
#define RETAIN_IMAGE
void QSGD3D12Texture::create(const QImage &image, uint flags)
{
// ### atlas?
const bool alphaRequest = flags & QSGRenderContext::CreateTexture_Alpha;
m_alphaWanted = alphaRequest && image.hasAlphaChannel();
// The engine maps 8-bit formats to R8. This is fine for glyphs and such
// but may not be what apps expect for ordinary image data. The OpenGL
// implementation maps these to ARGB32_Pre so let's follow suit.
if (image.depth() != 8)
m_image = image;
else
m_image = image.convertToFormat(m_alphaWanted ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32);
m_id = m_engine->genTexture();
Q_ASSERT(m_id);
// We could kick off the texture creation and the async upload right here.
// Unfortunately we cannot tell at this stage if mipmaps will be enabled
// via an Image element's mipmap property...so defer to bind().
m_createPending = true;
}
QSGD3D12Texture::QSGD3D12Texture(QSGD3D12Engine *engine)
: QSGTexture(*(new QSGD3D12TexturePrivate)),
m_engine(engine)
{
}
QSGD3D12Texture::~QSGD3D12Texture()
{
if (m_id)
m_engine->releaseTexture(m_id);
}
int QSGD3D12Texture::textureId() const
{
return m_id;
}
int QSGD3D12TexturePrivate::comparisonKey() const
{
Q_Q(const QSGD3D12Texture);
return q->m_id;
}
QSize QSGD3D12Texture::textureSize() const
{
return m_image.size();
}
bool QSGD3D12Texture::hasAlphaChannel() const
{
return m_alphaWanted;
}
bool QSGD3D12Texture::hasMipmaps() const
{
return mipmapFiltering() != QSGTexture::None;
}
QRectF QSGD3D12Texture::normalizedTextureSubRect() const
{
return QRectF(0, 0, 1, 1);
}
void QSGD3D12Texture::bind()
{
// Called when the texture material updates the pipeline state.
if (!m_createPending && hasMipmaps() != m_createdWithMipMaps) {
#ifdef RETAIN_IMAGE
m_engine->releaseTexture(m_id);
m_id = m_engine->genTexture();
Q_ASSERT(m_id);
m_createPending = true;
#else
// ### this can be made working some day (something similar to
// queueTextureResize) but skip for now
qWarning("D3D12: mipmap property cannot be changed once the texture is created");
#endif
}
if (m_createPending) {
m_createPending = false;
QSGD3D12Engine::TextureCreateFlags createFlags = 0;
if (m_alphaWanted)
createFlags |= QSGD3D12Engine::TextureWithAlpha;
m_createdWithMipMaps = hasMipmaps();
if (m_createdWithMipMaps)
createFlags |= QSGD3D12Engine::TextureWithMipMaps;
m_engine->createTexture(m_id, m_image.size(), m_image.format(), createFlags);
m_engine->queueTextureUpload(m_id, m_image);
#ifndef RETAIN_IMAGE
m_image = QImage();
#endif
}
// Here we know that the texture is going to be used in the current frame
// by the next draw call. Notify the engine so that it can wait for
// possible pending uploads and set up the pipeline accordingly.
m_engine->useTexture(m_id);
}
QT_END_NAMESPACE
|
