| 1 | /**************************************************************************** | 
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| 2 | ** | 
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| 3 | ** Copyright (C) 2016 The Qt Company Ltd. | 
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| 4 | ** Contact: https://www.qt.io/licensing/ | 
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| 5 | ** | 
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| 6 | ** This file is part of the QtGui module of the Qt Toolkit. | 
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| 7 | ** | 
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| 8 | ** $QT_BEGIN_LICENSE:LGPL$ | 
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| 9 | ** Commercial License Usage | 
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| 10 | ** Licensees holding valid commercial Qt licenses may use this file in | 
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| 11 | ** accordance with the commercial license agreement provided with the | 
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| 12 | ** Software or, alternatively, in accordance with the terms contained in | 
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| 13 | ** a written agreement between you and The Qt Company. For licensing terms | 
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| 14 | ** and conditions see https://www.qt.io/terms-conditions. For further | 
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| 15 | ** information use the contact form at https://www.qt.io/contact-us. | 
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| 16 | ** | 
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| 17 | ** GNU Lesser General Public License Usage | 
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| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | 
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| 19 | ** General Public License version 3 as published by the Free Software | 
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| 20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the | 
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| 21 | ** packaging of this file. Please review the following information to | 
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| 22 | ** ensure the GNU Lesser General Public License version 3 requirements | 
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| 23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. | 
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| 24 | ** | 
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| 25 | ** GNU General Public License Usage | 
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| 26 | ** Alternatively, this file may be used under the terms of the GNU | 
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| 27 | ** General Public License version 2.0 or (at your option) the GNU General | 
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| 28 | ** Public license version 3 or any later version approved by the KDE Free | 
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| 29 | ** Qt Foundation. The licenses are as published by the Free Software | 
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| 30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 | 
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| 31 | ** included in the packaging of this file. Please review the following | 
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| 32 | ** information to ensure the GNU General Public License requirements will | 
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| 33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and | 
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| 34 | ** https://www.gnu.org/licenses/gpl-3.0.html. | 
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| 35 | ** | 
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| 36 | ** $QT_END_LICENSE$ | 
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| 37 | ** | 
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| 38 | ****************************************************************************/ | 
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| 39 |  | 
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| 40 | #include <qmath.h> | 
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| 41 | #include "qblendfunctions_p.h" | 
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| 42 |  | 
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| 43 | QT_BEGIN_NAMESPACE | 
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| 44 |  | 
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| 45 | struct SourceOnlyAlpha | 
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| 46 | { | 
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| 47 | inline uchar alpha(uchar src) const { return src; } | 
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| 48 | inline quint16 bytemul(quint16 spix) const { return spix; } | 
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| 49 | }; | 
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| 50 |  | 
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| 51 |  | 
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| 52 | struct SourceAndConstAlpha | 
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| 53 | { | 
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| 54 | SourceAndConstAlpha(int a) : m_alpha256(a) { | 
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| 55 | m_alpha255 = (m_alpha256 * 255) >> 8; | 
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| 56 | }; | 
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| 57 | inline uchar alpha(uchar src) const { return (src * m_alpha256) >> 8; } | 
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| 58 | inline quint16 bytemul(quint16 x) const { | 
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| 59 | uint t = (((x & 0x07e0)*m_alpha255) >> 8) & 0x07e0; | 
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| 60 | t |= (((x & 0xf81f)*(m_alpha255>>2)) >> 6) & 0xf81f; | 
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| 61 | return t; | 
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| 62 | } | 
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| 63 | int m_alpha255; | 
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| 64 | int m_alpha256; | 
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| 65 | }; | 
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| 66 |  | 
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| 67 |  | 
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| 68 | /************************************************************************ | 
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| 69 | RGB16 (565) format target format | 
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| 70 | ************************************************************************/ | 
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| 71 |  | 
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| 72 | struct Blend_RGB16_on_RGB16_NoAlpha { | 
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| 73 | inline void write(quint16 *dst, quint16 src) { *dst = src; } | 
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| 74 |  | 
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| 75 | inline void flush(void *) {} | 
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| 76 | }; | 
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| 77 |  | 
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| 78 | struct Blend_RGB16_on_RGB16_ConstAlpha { | 
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| 79 | inline Blend_RGB16_on_RGB16_ConstAlpha(quint32 alpha) { | 
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| 80 | m_alpha = (alpha * 255) >> 8; | 
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| 81 | m_ialpha = 255 - m_alpha; | 
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| 82 | } | 
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| 83 |  | 
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| 84 | inline void write(quint16 *dst, quint16 src) { | 
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| 85 | *dst = BYTE_MUL_RGB16(src, m_alpha) + BYTE_MUL_RGB16(*dst, m_ialpha); | 
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| 86 | } | 
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| 87 |  | 
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| 88 | inline void flush(void *) {} | 
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| 89 |  | 
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| 90 | quint32 m_alpha; | 
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| 91 | quint32 m_ialpha; | 
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| 92 | }; | 
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| 93 |  | 
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| 94 | struct Blend_ARGB32_on_RGB16_SourceAlpha { | 
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| 95 | inline void write(quint16 *dst, quint32 src) { | 
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| 96 | const quint8 alpha = qAlpha(src); | 
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| 97 | if (alpha) { | 
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| 98 | quint16 s = qConvertRgb32To16(src); | 
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| 99 | if(alpha < 255) | 
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| 100 | s += BYTE_MUL_RGB16(*dst, 255 - alpha); | 
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| 101 | *dst = s; | 
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| 102 | } | 
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| 103 | } | 
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| 104 |  | 
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| 105 | inline void flush(void *) {} | 
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| 106 | }; | 
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| 107 |  | 
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| 108 | struct Blend_ARGB32_on_RGB16_SourceAndConstAlpha { | 
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| 109 | inline Blend_ARGB32_on_RGB16_SourceAndConstAlpha(quint32 alpha) { | 
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| 110 | m_alpha = (alpha * 255) >> 8; | 
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| 111 | } | 
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| 112 |  | 
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| 113 | inline void write(quint16 *dst, quint32 src) { | 
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| 114 | src = BYTE_MUL(src, m_alpha); | 
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| 115 | const quint8 alpha = qAlpha(src); | 
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| 116 | if(alpha) { | 
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| 117 | quint16 s = qConvertRgb32To16(src); | 
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| 118 | if(alpha < 255) | 
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| 119 | s += BYTE_MUL_RGB16(*dst, 255 - alpha); | 
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| 120 | *dst = s; | 
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| 121 | } | 
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| 122 | } | 
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| 123 |  | 
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| 124 | inline void flush(void *) {} | 
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| 125 |  | 
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| 126 | quint32 m_alpha; | 
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| 127 | }; | 
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| 128 |  | 
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| 129 | void qt_scale_image_rgb16_on_rgb16(uchar *destPixels, int dbpl, | 
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| 130 | const uchar *srcPixels, int sbpl, int srch, | 
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| 131 | const QRectF &targetRect, | 
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| 132 | const QRectF &sourceRect, | 
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| 133 | const QRect &clip, | 
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| 134 | int const_alpha) | 
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| 135 | { | 
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| 136 | #ifdef QT_DEBUG_DRAW | 
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| 137 | printf( "qt_scale_rgb16_on_rgb16: dst=(%p, %d), src=(%p, %d), target=(%d, %d), [%d x %d], src=(%d, %d) [%d x %d] alpha=%d\n", | 
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| 138 | destPixels, dbpl, srcPixels, sbpl, | 
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| 139 | targetRect.x(), targetRect.y(), targetRect.width(), targetRect.height(), | 
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| 140 | sourceRect.x(), sourceRect.y(), sourceRect.width(), sourceRect.height(), | 
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| 141 | const_alpha); | 
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| 142 | #endif | 
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| 143 | if (const_alpha == 256) { | 
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| 144 | Blend_RGB16_on_RGB16_NoAlpha noAlpha; | 
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| 145 | qt_scale_image_16bit<quint16>(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 146 | targetRect, sourceRect, clip, noAlpha); | 
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| 147 | } else { | 
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| 148 | Blend_RGB16_on_RGB16_ConstAlpha constAlpha(const_alpha); | 
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| 149 | qt_scale_image_16bit<quint16>(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 150 | targetRect, sourceRect, clip, constAlpha); | 
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| 151 | } | 
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| 152 | } | 
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| 153 |  | 
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| 154 | void qt_scale_image_argb32_on_rgb16(uchar *destPixels, int dbpl, | 
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| 155 | const uchar *srcPixels, int sbpl, int srch, | 
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| 156 | const QRectF &targetRect, | 
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| 157 | const QRectF &sourceRect, | 
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| 158 | const QRect &clip, | 
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| 159 | int const_alpha) | 
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| 160 | { | 
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| 161 | #ifdef QT_DEBUG_DRAW | 
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| 162 | printf( "qt_scale_argb32_on_rgb16: dst=(%p, %d), src=(%p, %d), target=(%d, %d), [%d x %d], src=(%d, %d) [%d x %d] alpha=%d\n", | 
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| 163 | destPixels, dbpl, srcPixels, sbpl, | 
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| 164 | targetRect.x(), targetRect.y(), targetRect.width(), targetRect.height(), | 
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| 165 | sourceRect.x(), sourceRect.y(), sourceRect.width(), sourceRect.height(), | 
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| 166 | const_alpha); | 
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| 167 | #endif | 
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| 168 | if (const_alpha == 256) { | 
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| 169 | Blend_ARGB32_on_RGB16_SourceAlpha noAlpha; | 
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| 170 | qt_scale_image_16bit<quint32>(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 171 | targetRect, sourceRect, clip, noAlpha); | 
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| 172 | } else { | 
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| 173 | Blend_ARGB32_on_RGB16_SourceAndConstAlpha constAlpha(const_alpha); | 
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| 174 | qt_scale_image_16bit<quint32>(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 175 | targetRect, sourceRect, clip, constAlpha); | 
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| 176 | } | 
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| 177 | } | 
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| 178 |  | 
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| 179 | void qt_blend_rgb16_on_rgb16(uchar *dst, int dbpl, | 
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| 180 | const uchar *src, int sbpl, | 
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| 181 | int w, int h, | 
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| 182 | int const_alpha) | 
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| 183 | { | 
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| 184 | #ifdef QT_DEBUG_DRAW | 
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| 185 | printf( "qt_blend_rgb16_on_rgb16: dst=(%p, %d), src=(%p, %d), dim=(%d, %d) alpha=%d\n", | 
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| 186 | dst, dbpl, src, sbpl, w, h, const_alpha); | 
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| 187 | #endif | 
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| 188 |  | 
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| 189 | if (const_alpha == 256) { | 
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| 190 | int length = w << 1; | 
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| 191 | while (h--) { | 
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| 192 | memcpy(dst, src, length); | 
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| 193 | dst += dbpl; | 
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| 194 | src += sbpl; | 
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| 195 | } | 
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| 196 | } else if (const_alpha != 0) { | 
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| 197 | quint16 *d = (quint16 *) dst; | 
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| 198 | const quint16 *s = (const quint16 *) src; | 
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| 199 | quint8 a = (255 * const_alpha) >> 8; | 
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| 200 | quint8 ia = 255 - a; | 
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| 201 | while (h--) { | 
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| 202 | for (int x=0; x<w; ++x) { | 
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| 203 | d[x] = BYTE_MUL_RGB16(s[x], a) + BYTE_MUL_RGB16(d[x], ia); | 
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| 204 | } | 
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| 205 | d = (quint16 *)(((uchar *) d) + dbpl); | 
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| 206 | s = (const quint16 *)(((const uchar *) s) + sbpl); | 
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| 207 | } | 
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| 208 | } | 
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| 209 | } | 
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| 210 |  | 
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| 211 |  | 
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| 212 | void qt_blend_argb32_on_rgb16_const_alpha(uchar *destPixels, int dbpl, | 
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| 213 | const uchar *srcPixels, int sbpl, | 
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| 214 | int w, int h, | 
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| 215 | int const_alpha) | 
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| 216 | { | 
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| 217 | quint16 *dst = (quint16 *) destPixels; | 
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| 218 | const quint32 *src = (const quint32 *) srcPixels; | 
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| 219 |  | 
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| 220 | const_alpha = (const_alpha * 255) >> 8; | 
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| 221 | for (int y=0; y<h; ++y) { | 
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| 222 | for (int i = 0; i < w; ++i) { | 
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| 223 | uint s = src[i]; | 
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| 224 | s = BYTE_MUL(s, const_alpha); | 
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| 225 | int alpha = qAlpha(s); | 
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| 226 | s = qConvertRgb32To16(s); | 
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| 227 | s += BYTE_MUL_RGB16(dst[i], 255 - alpha); | 
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| 228 | dst[i] = s; | 
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| 229 | } | 
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| 230 | dst = (quint16 *)(((uchar *) dst) + dbpl); | 
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| 231 | src = (const quint32 *)(((const uchar *) src) + sbpl); | 
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| 232 | } | 
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| 233 | } | 
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| 234 |  | 
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| 235 | static void qt_blend_argb32_on_rgb16(uchar *destPixels, int dbpl, | 
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| 236 | const uchar *srcPixels, int sbpl, | 
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| 237 | int w, int h, | 
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| 238 | int const_alpha) | 
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| 239 | { | 
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| 240 | if (const_alpha != 256) { | 
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| 241 | qt_blend_argb32_on_rgb16_const_alpha(destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha); | 
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| 242 | return; | 
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| 243 | } | 
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| 244 |  | 
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| 245 | quint16 *dst = (quint16 *) destPixels; | 
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| 246 | const quint32 *src = (const quint32 *) srcPixels; | 
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| 247 |  | 
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| 248 | for (int y=0; y<h; ++y) { | 
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| 249 | for (int x=0; x<w; ++x) { | 
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| 250 |  | 
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| 251 | quint32 spix = src[x]; | 
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| 252 | quint32 alpha = spix >> 24; | 
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| 253 |  | 
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| 254 | if (alpha == 255) { | 
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| 255 | dst[x] = qConvertRgb32To16(spix); | 
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| 256 | } else if (alpha != 0) { | 
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| 257 | quint32 dpix = dst[x]; | 
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| 258 |  | 
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| 259 | quint32 sia = 255 - alpha; | 
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| 260 |  | 
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| 261 | quint32 sr = (spix >> 8) & 0xf800; | 
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| 262 | quint32 sg = (spix >> 5) & 0x07e0; | 
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| 263 | quint32 sb = (spix >> 3) & 0x001f; | 
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| 264 |  | 
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| 265 | quint32 dr = (dpix & 0x0000f800); | 
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| 266 | quint32 dg = (dpix & 0x000007e0); | 
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| 267 | quint32 db = (dpix & 0x0000001f); | 
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| 268 |  | 
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| 269 | quint32 siar = dr * sia; | 
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| 270 | quint32 siag = dg * sia; | 
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| 271 | quint32 siab = db * sia; | 
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| 272 |  | 
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| 273 | quint32 rr = sr + ((siar + (siar>>8) + (0x80 << 8)) >> 8); | 
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| 274 | quint32 rg = sg + ((siag + (siag>>8) + (0x80 << 3)) >> 8); | 
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| 275 | quint32 rb = sb + ((siab + (siab>>8) + (0x80 >> 3)) >> 8); | 
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| 276 |  | 
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| 277 | dst[x] = (rr & 0xf800) | 
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| 278 | | (rg & 0x07e0) | 
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| 279 | | (rb); | 
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| 280 | } | 
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| 281 | } | 
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| 282 | dst = (quint16 *) (((uchar *) dst) + dbpl); | 
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| 283 | src = (const quint32 *) (((const uchar *) src) + sbpl); | 
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| 284 | } | 
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| 285 | } | 
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| 286 |  | 
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| 287 |  | 
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| 288 | static void qt_blend_rgb32_on_rgb16(uchar *destPixels, int dbpl, | 
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| 289 | const uchar *srcPixels, int sbpl, | 
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| 290 | int w, int h, | 
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| 291 | int const_alpha) | 
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| 292 | { | 
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| 293 | #ifdef QT_DEBUG_DRAW | 
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| 294 | printf( "qt_blend_rgb32_on_rgb16: dst=(%p, %d), src=(%p, %d), dim=(%d, %d) alpha=%d\n", | 
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| 295 | destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha); | 
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| 296 | #endif | 
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| 297 |  | 
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| 298 | if (const_alpha != 256) { | 
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| 299 | qt_blend_argb32_on_rgb16(destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha); | 
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| 300 | return; | 
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| 301 | } | 
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| 302 |  | 
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| 303 | const quint32 *src = (const quint32 *) srcPixels; | 
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| 304 | int  = (sbpl >> 2) - w; | 
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| 305 |  | 
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| 306 | int dstJPL = dbpl / 2; | 
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| 307 |  | 
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| 308 | quint16 *dst = (quint16 *) destPixels; | 
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| 309 | quint16 *dstEnd = dst + dstJPL * h; | 
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| 310 |  | 
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| 311 | int  = dstJPL - w; | 
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| 312 |  | 
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| 313 | while (dst < dstEnd) { | 
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| 314 | const quint32 *srcEnd = src + w; | 
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| 315 | while (src < srcEnd) { | 
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| 316 | *dst = qConvertRgb32To16(*src); | 
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| 317 | ++dst; | 
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| 318 | ++src; | 
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| 319 | } | 
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| 320 | dst += dstExtraStride; | 
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| 321 | src += srcExtraStride; | 
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| 322 | } | 
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| 323 | } | 
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| 324 |  | 
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| 325 |  | 
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| 326 |  | 
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| 327 | /************************************************************************ | 
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| 328 | RGB32 (-888) format target format | 
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| 329 | ************************************************************************/ | 
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| 330 |  | 
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| 331 | static void qt_blend_argb32_on_argb32(uchar *destPixels, int dbpl, | 
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| 332 | const uchar *srcPixels, int sbpl, | 
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| 333 | int w, int h, | 
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| 334 | int const_alpha) | 
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| 335 | { | 
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| 336 | #ifdef QT_DEBUG_DRAW | 
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| 337 | fprintf(stdout, "qt_blend_argb32_on_argb32: dst=(%p, %d), src=(%p, %d), dim=(%d, %d) alpha=%d\n", | 
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| 338 | destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha); | 
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| 339 | fflush(stdout); | 
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| 340 | #endif | 
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| 341 |  | 
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| 342 | const uint *src = (const uint *) srcPixels; | 
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| 343 | uint *dst = (uint *) destPixels; | 
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| 344 | if (const_alpha == 256) { | 
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| 345 | for (int y=0; y<h; ++y) { | 
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| 346 | for (int x=0; x<w; ++x) { | 
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| 347 | uint s = src[x]; | 
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| 348 | if (s >= 0xff000000) | 
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| 349 | dst[x] = s; | 
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| 350 | else if (s != 0) | 
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| 351 | dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); | 
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| 352 | } | 
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| 353 | dst = (quint32 *)(((uchar *) dst) + dbpl); | 
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| 354 | src = (const quint32 *)(((const uchar *) src) + sbpl); | 
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| 355 | } | 
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| 356 | } else if (const_alpha != 0) { | 
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| 357 | const_alpha = (const_alpha * 255) >> 8; | 
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| 358 | for (int y=0; y<h; ++y) { | 
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| 359 | for (int x=0; x<w; ++x) { | 
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| 360 | uint s = BYTE_MUL(src[x], const_alpha); | 
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| 361 | dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); | 
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| 362 | } | 
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| 363 | dst = (quint32 *)(((uchar *) dst) + dbpl); | 
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| 364 | src = (const quint32 *)(((const uchar *) src) + sbpl); | 
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| 365 | } | 
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| 366 | } | 
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| 367 | } | 
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| 368 |  | 
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| 369 |  | 
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| 370 | void qt_blend_rgb32_on_rgb32(uchar *destPixels, int dbpl, | 
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| 371 | const uchar *srcPixels, int sbpl, | 
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| 372 | int w, int h, | 
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| 373 | int const_alpha) | 
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| 374 | { | 
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| 375 | #ifdef QT_DEBUG_DRAW | 
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| 376 | fprintf(stdout, "qt_blend_rgb32_on_rgb32: dst=(%p, %d), src=(%p, %d), dim=(%d, %d) alpha=%d\n", | 
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| 377 | destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha); | 
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| 378 | fflush(stdout); | 
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| 379 | #endif | 
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| 380 | const uint *src = (const uint *) srcPixels; | 
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| 381 | uint *dst = (uint *) destPixels; | 
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| 382 | if (const_alpha == 256) { | 
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| 383 | const int len = w * 4; | 
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| 384 | for (int y = 0; y < h; ++y) { | 
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| 385 | memcpy(dst, src, len); | 
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| 386 | dst = (quint32 *)(((uchar *) dst) + dbpl); | 
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| 387 | src = (const quint32 *)(((const uchar *) src) + sbpl); | 
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| 388 | } | 
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| 389 | return; | 
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| 390 | } else if (const_alpha != 0) { | 
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| 391 | const_alpha = (const_alpha * 255) >> 8; | 
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| 392 | int ialpha = 255 - const_alpha; | 
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| 393 | for (int y=0; y<h; ++y) { | 
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| 394 | for (int x=0; x<w; ++x) | 
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| 395 | dst[x] = INTERPOLATE_PIXEL_255(dst[x], ialpha, src[x], const_alpha); | 
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| 396 | dst = (quint32 *)(((uchar *) dst) + dbpl); | 
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| 397 | src = (const quint32 *)(((const uchar *) src) + sbpl); | 
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| 398 | } | 
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| 399 | } | 
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| 400 | } | 
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| 401 |  | 
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| 402 | struct Blend_RGB32_on_RGB32_NoAlpha { | 
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| 403 | inline void write(quint32 *dst, quint32 src) { *dst = src; } | 
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| 404 |  | 
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| 405 | inline void flush(void *) {} | 
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| 406 | }; | 
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| 407 |  | 
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| 408 | struct Blend_RGB32_on_RGB32_ConstAlpha { | 
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| 409 | inline Blend_RGB32_on_RGB32_ConstAlpha(quint32 alpha) { | 
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| 410 | m_alpha = (alpha * 255) >> 8; | 
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| 411 | m_ialpha = 255 - m_alpha; | 
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| 412 | } | 
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| 413 |  | 
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| 414 | inline void write(quint32 *dst, quint32 src) { | 
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| 415 | *dst = INTERPOLATE_PIXEL_255(src, m_alpha, *dst, m_ialpha); | 
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| 416 | } | 
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| 417 |  | 
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| 418 | inline void flush(void *) {} | 
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| 419 |  | 
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| 420 | quint32 m_alpha; | 
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| 421 | quint32 m_ialpha; | 
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| 422 | }; | 
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| 423 |  | 
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| 424 | struct Blend_ARGB32_on_ARGB32_SourceAlpha { | 
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| 425 | inline void write(quint32 *dst, quint32 src) | 
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| 426 | { | 
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| 427 | blend_pixel(*dst, src); | 
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| 428 | } | 
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| 429 |  | 
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| 430 | inline void flush(void *) {} | 
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| 431 | }; | 
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| 432 |  | 
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| 433 | struct Blend_ARGB32_on_ARGB32_SourceAndConstAlpha { | 
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| 434 | inline Blend_ARGB32_on_ARGB32_SourceAndConstAlpha(quint32 alpha) | 
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| 435 | { | 
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| 436 | m_alpha = (alpha * 255) >> 8; | 
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| 437 | } | 
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| 438 |  | 
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| 439 | inline void write(quint32 *dst, quint32 src) | 
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| 440 | { | 
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| 441 | blend_pixel(*dst, src, m_alpha); | 
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| 442 | } | 
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| 443 |  | 
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| 444 | inline void flush(void *) {} | 
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| 445 |  | 
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| 446 | quint32 m_alpha; | 
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| 447 | }; | 
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| 448 |  | 
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| 449 | void qt_scale_image_rgb32_on_rgb32(uchar *destPixels, int dbpl, | 
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| 450 | const uchar *srcPixels, int sbpl, int srch, | 
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| 451 | const QRectF &targetRect, | 
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| 452 | const QRectF &sourceRect, | 
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| 453 | const QRect &clip, | 
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| 454 | int const_alpha) | 
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| 455 | { | 
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| 456 | #ifdef QT_DEBUG_DRAW | 
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| 457 | printf( "qt_scale_rgb32_on_rgb32: dst=(%p, %d), src=(%p, %d), target=(%d, %d), [%d x %d], src=(%d, %d) [%d x %d] alpha=%d\n", | 
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| 458 | destPixels, dbpl, srcPixels, sbpl, | 
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| 459 | targetRect.x(), targetRect.y(), targetRect.width(), targetRect.height(), | 
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| 460 | sourceRect.x(), sourceRect.y(), sourceRect.width(), sourceRect.height(), | 
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| 461 | const_alpha); | 
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| 462 | #endif | 
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| 463 | if (const_alpha == 256) { | 
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| 464 | Blend_RGB32_on_RGB32_NoAlpha noAlpha; | 
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| 465 | qt_scale_image_32bit(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 466 | targetRect, sourceRect, clip, noAlpha); | 
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| 467 | } else { | 
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| 468 | Blend_RGB32_on_RGB32_ConstAlpha constAlpha(const_alpha); | 
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| 469 | qt_scale_image_32bit(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 470 | targetRect, sourceRect, clip, constAlpha); | 
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| 471 | } | 
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| 472 | } | 
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| 473 |  | 
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| 474 | void qt_scale_image_argb32_on_argb32(uchar *destPixels, int dbpl, | 
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| 475 | const uchar *srcPixels, int sbpl, int srch, | 
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| 476 | const QRectF &targetRect, | 
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| 477 | const QRectF &sourceRect, | 
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| 478 | const QRect &clip, | 
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| 479 | int const_alpha) | 
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| 480 | { | 
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| 481 | #ifdef QT_DEBUG_DRAW | 
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| 482 | printf( "qt_scale_argb32_on_argb32: dst=(%p, %d), src=(%p, %d), target=(%d, %d), [%d x %d], src=(%d, %d) [%d x %d] alpha=%d\n", | 
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| 483 | destPixels, dbpl, srcPixels, sbpl, | 
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| 484 | targetRect.x(), targetRect.y(), targetRect.width(), targetRect.height(), | 
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| 485 | sourceRect.x(), sourceRect.y(), sourceRect.width(), sourceRect.height(), | 
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| 486 | const_alpha); | 
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| 487 | #endif | 
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| 488 | if (const_alpha == 256) { | 
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| 489 | Blend_ARGB32_on_ARGB32_SourceAlpha sourceAlpha; | 
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| 490 | qt_scale_image_32bit(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 491 | targetRect, sourceRect, clip, sourceAlpha); | 
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| 492 | } else { | 
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| 493 | Blend_ARGB32_on_ARGB32_SourceAndConstAlpha constAlpha(const_alpha); | 
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| 494 | qt_scale_image_32bit(destPixels, dbpl, srcPixels, sbpl, srch, | 
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| 495 | targetRect, sourceRect, clip, constAlpha); | 
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| 496 | } | 
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| 497 | } | 
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| 498 |  | 
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| 499 | void qt_transform_image_rgb16_on_rgb16(uchar *destPixels, int dbpl, | 
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| 500 | const uchar *srcPixels, int sbpl, | 
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| 501 | const QRectF &targetRect, | 
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| 502 | const QRectF &sourceRect, | 
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| 503 | const QRect &clip, | 
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| 504 | const QTransform &targetRectTransform, | 
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| 505 | int const_alpha) | 
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| 506 | { | 
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| 507 | if (const_alpha == 256) { | 
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| 508 | Blend_RGB16_on_RGB16_NoAlpha noAlpha; | 
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| 509 | qt_transform_image(reinterpret_cast<quint16 *>(destPixels), dbpl, | 
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| 510 | reinterpret_cast<const quint16 *>(srcPixels), sbpl, | 
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| 511 | targetRect, sourceRect, clip, targetRectTransform, noAlpha); | 
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| 512 | } else { | 
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| 513 | Blend_RGB16_on_RGB16_ConstAlpha constAlpha(const_alpha); | 
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| 514 | qt_transform_image(reinterpret_cast<quint16 *>(destPixels), dbpl, | 
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| 515 | reinterpret_cast<const quint16 *>(srcPixels), sbpl, | 
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| 516 | targetRect, sourceRect, clip, targetRectTransform, constAlpha); | 
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| 517 | } | 
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| 518 | } | 
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| 519 |  | 
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| 520 | void qt_transform_image_argb32_on_rgb16(uchar *destPixels, int dbpl, | 
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| 521 | const uchar *srcPixels, int sbpl, | 
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| 522 | const QRectF &targetRect, | 
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| 523 | const QRectF &sourceRect, | 
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| 524 | const QRect &clip, | 
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| 525 | const QTransform &targetRectTransform, | 
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| 526 | int const_alpha) | 
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| 527 | { | 
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| 528 | if (const_alpha == 256) { | 
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| 529 | Blend_ARGB32_on_RGB16_SourceAlpha noAlpha; | 
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| 530 | qt_transform_image(reinterpret_cast<quint16 *>(destPixels), dbpl, | 
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| 531 | reinterpret_cast<const quint32 *>(srcPixels), sbpl, | 
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| 532 | targetRect, sourceRect, clip, targetRectTransform, noAlpha); | 
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| 533 | } else { | 
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| 534 | Blend_ARGB32_on_RGB16_SourceAndConstAlpha constAlpha(const_alpha); | 
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| 535 | qt_transform_image(reinterpret_cast<quint16 *>(destPixels), dbpl, | 
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| 536 | reinterpret_cast<const quint32 *>(srcPixels), sbpl, | 
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| 537 | targetRect, sourceRect, clip, targetRectTransform, constAlpha); | 
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| 538 | } | 
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| 539 | } | 
|---|
| 540 |  | 
|---|
| 541 |  | 
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| 542 | void qt_transform_image_rgb32_on_rgb32(uchar *destPixels, int dbpl, | 
|---|
| 543 | const uchar *srcPixels, int sbpl, | 
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| 544 | const QRectF &targetRect, | 
|---|
| 545 | const QRectF &sourceRect, | 
|---|
| 546 | const QRect &clip, | 
|---|
| 547 | const QTransform &targetRectTransform, | 
|---|
| 548 | int const_alpha) | 
|---|
| 549 | { | 
|---|
| 550 | if (const_alpha == 256) { | 
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| 551 | Blend_RGB32_on_RGB32_NoAlpha noAlpha; | 
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| 552 | qt_transform_image(reinterpret_cast<quint32 *>(destPixels), dbpl, | 
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| 553 | reinterpret_cast<const quint32 *>(srcPixels), sbpl, | 
|---|
| 554 | targetRect, sourceRect, clip, targetRectTransform, noAlpha); | 
|---|
| 555 | } else { | 
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| 556 | Blend_RGB32_on_RGB32_ConstAlpha constAlpha(const_alpha); | 
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| 557 | qt_transform_image(reinterpret_cast<quint32 *>(destPixels), dbpl, | 
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| 558 | reinterpret_cast<const quint32 *>(srcPixels), sbpl, | 
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| 559 | targetRect, sourceRect, clip, targetRectTransform, constAlpha); | 
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| 560 | } | 
|---|
| 561 | } | 
|---|
| 562 |  | 
|---|
| 563 | void qt_transform_image_argb32_on_argb32(uchar *destPixels, int dbpl, | 
|---|
| 564 | const uchar *srcPixels, int sbpl, | 
|---|
| 565 | const QRectF &targetRect, | 
|---|
| 566 | const QRectF &sourceRect, | 
|---|
| 567 | const QRect &clip, | 
|---|
| 568 | const QTransform &targetRectTransform, | 
|---|
| 569 | int const_alpha) | 
|---|
| 570 | { | 
|---|
| 571 | if (const_alpha == 256) { | 
|---|
| 572 | Blend_ARGB32_on_ARGB32_SourceAlpha sourceAlpha; | 
|---|
| 573 | qt_transform_image(reinterpret_cast<quint32 *>(destPixels), dbpl, | 
|---|
| 574 | reinterpret_cast<const quint32 *>(srcPixels), sbpl, | 
|---|
| 575 | targetRect, sourceRect, clip, targetRectTransform, sourceAlpha); | 
|---|
| 576 | } else { | 
|---|
| 577 | Blend_ARGB32_on_ARGB32_SourceAndConstAlpha constAlpha(const_alpha); | 
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| 578 | qt_transform_image(reinterpret_cast<quint32 *>(destPixels), dbpl, | 
|---|
| 579 | reinterpret_cast<const quint32 *>(srcPixels), sbpl, | 
|---|
| 580 | targetRect, sourceRect, clip, targetRectTransform, constAlpha); | 
|---|
| 581 | } | 
|---|
| 582 | } | 
|---|
| 583 |  | 
|---|
| 584 | SrcOverScaleFunc qScaleFunctions[QImage::NImageFormats][QImage::NImageFormats]; | 
|---|
| 585 | SrcOverBlendFunc qBlendFunctions[QImage::NImageFormats][QImage::NImageFormats]; | 
|---|
| 586 | SrcOverTransformFunc qTransformFunctions[QImage::NImageFormats][QImage::NImageFormats]; | 
|---|
| 587 |  | 
|---|
| 588 | void qInitBlendFunctions() | 
|---|
| 589 | { | 
|---|
| 590 | qScaleFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_scale_image_rgb32_on_rgb32; | 
|---|
| 591 | qScaleFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_argb32; | 
|---|
| 592 | qScaleFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_scale_image_rgb32_on_rgb32; | 
|---|
| 593 | qScaleFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_argb32; | 
|---|
| 594 | qScaleFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_rgb16; | 
|---|
| 595 | qScaleFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_scale_image_rgb16_on_rgb16; | 
|---|
| 596 | #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN | 
|---|
| 597 | qScaleFunctions[QImage::Format_RGBX8888][QImage::Format_RGBX8888] = qt_scale_image_rgb32_on_rgb32; | 
|---|
| 598 | qScaleFunctions[QImage::Format_RGBX8888][QImage::Format_RGBA8888_Premultiplied] = qt_scale_image_argb32_on_argb32; | 
|---|
| 599 | qScaleFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBX8888] = qt_scale_image_rgb32_on_rgb32; | 
|---|
| 600 | qScaleFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBA8888_Premultiplied] = qt_scale_image_argb32_on_argb32; | 
|---|
| 601 | #endif | 
|---|
| 602 |  | 
|---|
| 603 | qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32; | 
|---|
| 604 | qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32; | 
|---|
| 605 | qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32; | 
|---|
| 606 | qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32; | 
|---|
| 607 | qBlendFunctions[QImage::Format_RGB16][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb16; | 
|---|
| 608 | qBlendFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_rgb16; | 
|---|
| 609 | qBlendFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_blend_rgb16_on_rgb16; | 
|---|
| 610 | #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN | 
|---|
| 611 | qBlendFunctions[QImage::Format_RGBX8888][QImage::Format_RGBX8888] = qt_blend_rgb32_on_rgb32; | 
|---|
| 612 | qBlendFunctions[QImage::Format_RGBX8888][QImage::Format_RGBA8888_Premultiplied] = qt_blend_argb32_on_argb32; | 
|---|
| 613 | qBlendFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBX8888] = qt_blend_rgb32_on_rgb32; | 
|---|
| 614 | qBlendFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBA8888_Premultiplied] = qt_blend_argb32_on_argb32; | 
|---|
| 615 | #endif | 
|---|
| 616 |  | 
|---|
| 617 | qTransformFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_transform_image_rgb32_on_rgb32; | 
|---|
| 618 | qTransformFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_transform_image_argb32_on_argb32; | 
|---|
| 619 | qTransformFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_transform_image_rgb32_on_rgb32; | 
|---|
| 620 | qTransformFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_transform_image_argb32_on_argb32; | 
|---|
| 621 | qTransformFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_transform_image_argb32_on_rgb16; | 
|---|
| 622 | qTransformFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_transform_image_rgb16_on_rgb16; | 
|---|
| 623 | #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN | 
|---|
| 624 | qTransformFunctions[QImage::Format_RGBX8888][QImage::Format_RGBX8888] = qt_transform_image_rgb32_on_rgb32; | 
|---|
| 625 | qTransformFunctions[QImage::Format_RGBX8888][QImage::Format_RGBA8888_Premultiplied] = qt_transform_image_argb32_on_argb32; | 
|---|
| 626 | qTransformFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBX8888] = qt_transform_image_rgb32_on_rgb32; | 
|---|
| 627 | qTransformFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBA8888_Premultiplied] = qt_transform_image_argb32_on_argb32; | 
|---|
| 628 | #endif | 
|---|
| 629 | } | 
|---|
| 630 |  | 
|---|
| 631 | QT_END_NAMESPACE | 
|---|
| 632 |  | 
|---|