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
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <sal/log.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygonclipper.hxx>
#include <basegfx/polygon/b2dpolygoncutandtouch.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygontriangulator.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/utils/canvastools.hxx>
#include <rtl/math.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/alpha.hxx>
#include <vcl/bitmap.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/canvastools.hxx>
#include <vcl/outdev.hxx>
#include <vcl/BitmapMonochromeFilter.hxx>
#include <canvas/canvastools.hxx>
#include "spritehelper.hxx"
using namespace ::com::sun::star;
namespace vclcanvas
{
SpriteHelper::SpriteHelper() :
mpBackBuffer(),
mpBackBufferMask(),
maContent(),
mbShowSpriteBounds(false)
{
}
void SpriteHelper::init( const geometry::RealSize2D& rSpriteSize,
const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
const BackBufferSharedPtr& rBackBuffer,
const BackBufferSharedPtr& rBackBufferMask,
bool bShowSpriteBounds )
{
ENSURE_OR_THROW( rOwningSpriteCanvas.get() && rBackBuffer && rBackBufferMask,
"SpriteHelper::init(): Invalid sprite canvas or back buffer" );
mpBackBuffer = rBackBuffer;
mpBackBufferMask = rBackBufferMask;
mbShowSpriteBounds = bShowSpriteBounds;
init( rSpriteSize, rOwningSpriteCanvas );
}
void SpriteHelper::disposing()
{
mpBackBuffer.reset();
mpBackBufferMask.reset();
// forward to parent
CanvasCustomSpriteHelper::disposing();
}
void SpriteHelper::redraw( OutputDevice& rTargetSurface,
const ::basegfx::B2DPoint& rPos,
bool& io_bSurfacesDirty,
bool bBufferedUpdate ) const
{
(void)bBufferedUpdate; // not used on every platform
if( !mpBackBuffer ||
!mpBackBufferMask )
{
return; // we're disposed
}
// log output pos in device pixel
SAL_INFO("canvas.vcl", "SpriteHelper::redraw(): output pos is (" <<
rPos.getX() << "," << rPos.getY() << ")");
const double fAlpha( getAlpha() );
if( isActive() &&
!::basegfx::fTools::equalZero( fAlpha ) )
{
const Point aEmptyPoint;
const ::basegfx::B2DVector& rOrigOutputSize( getSizePixel() );
// might get changed below (e.g. adapted for
// transformations). IMPORTANT: both position and size are
// rounded to integer values. From now on, only those
// rounded values are used, to keep clip and content in
// sync.
::Size aOutputSize( vcl::unotools::sizeFromB2DSize( rOrigOutputSize ) );
::Point aOutPos( vcl::unotools::pointFromB2DPoint( rPos ) );
// TODO(F3): Support for alpha-VDev
// Do we have to update our bitmaps (necessary if virdev
// was painted to, or transformation changed)?
const bool bNeedBitmapUpdate( io_bSurfacesDirty ||
hasTransformChanged() ||
maContent->IsEmpty() );
// updating content of sprite cache - surface is no
// longer dirty in relation to our cache
io_bSurfacesDirty = false;
transformUpdated();
if( bNeedBitmapUpdate )
{
BitmapEx aBmp( mpBackBuffer->getOutDev().GetBitmapEx( aEmptyPoint,
aOutputSize ) );
if( isContentFullyOpaque() )
{
// optimized case: content canvas is fully
// opaque. Note: since we retrieved aBmp directly
// from an OutDev, it's already a 'display bitmap'
// on windows.
maContent = BitmapEx( aBmp );
}
else
{
// sprite content might contain alpha, create
// BmpEx, then.
BitmapEx aMask( mpBackBufferMask->getOutDev().GetBitmapEx( aEmptyPoint,
aOutputSize ) );
// bitmasks are much faster than alphamasks on some platforms
// so convert to bitmask if useful
#ifndef MACOSX
if( aMask.GetBitCount() != 1 )
{
OSL_FAIL("CanvasCustomSprite::redraw(): Mask bitmap is not "
"monochrome (performance!)");
BitmapEx aMaskEx(aMask);
BitmapFilter::Filter(aMaskEx, BitmapMonochromeFilter(255));
aMask = aMaskEx.GetBitmap();
}
#endif
// Note: since we retrieved aBmp and aMask
// directly from an OutDev, it's already a
// 'display bitmap' on windows.
maContent = BitmapEx( aBmp.GetBitmap(), aMask.GetBitmap() );
}
}
::basegfx::B2DHomMatrix aTransform( getTransformation() );
// check whether matrix is "easy" to handle - pure
// translations or scales are handled by OutputDevice
// alone
const bool bIdentityTransform( aTransform.isIdentity() );
// make transformation absolute (put sprite to final
// output position). Need to happen here, as we also have
// to translate the clip polygon
aTransform.translate( aOutPos.X(),
aOutPos.Y() );
if( !bIdentityTransform )
{
if( !::basegfx::fTools::equalZero( aTransform.get(0,1) ) ||
!::basegfx::fTools::equalZero( aTransform.get(1,0) ) )
{
// "complex" transformation, employ affine
// transformator
// modify output position, to account for the fact
// that transformBitmap() always normalizes its output
// bitmap into the smallest enclosing box.
::basegfx::B2DRectangle aDestRect;
::canvas::tools::calcTransformedRectBounds( aDestRect,
::basegfx::B2DRectangle(0,
0,
rOrigOutputSize.getX(),
rOrigOutputSize.getY()),
aTransform );
aOutPos.setX( ::basegfx::fround( aDestRect.getMinX() ) );
aOutPos.setY( ::basegfx::fround( aDestRect.getMinY() ) );
// TODO(P3): Use optimized bitmap transformation here.
// actually re-create the bitmap ONLY if necessary
if( bNeedBitmapUpdate )
maContent = tools::transformBitmap( *maContent,
aTransform );
aOutputSize = maContent->GetSizePixel();
}
else
{
// relatively 'simplistic' transformation -
// retrieve scale and translational offset
aOutputSize.setWidth (
::basegfx::fround( rOrigOutputSize.getX() * aTransform.get(0,0) ) );
aOutputSize.setHeight(
::basegfx::fround( rOrigOutputSize.getY() * aTransform.get(1,1) ) );
aOutPos.setX( ::basegfx::fround( aTransform.get(0,2) ) );
aOutPos.setY( ::basegfx::fround( aTransform.get(1,2) ) );
}
}
// transformBitmap() might return empty bitmaps, for tiny
// scales.
if( !!(*maContent) )
{
rTargetSurface.Push( PushFlags::CLIPREGION );
// apply clip (if any)
if( getClip().is() )
{
::basegfx::B2DPolyPolygon aClipPoly(
::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(
getClip() ));
if( aClipPoly.count() )
{
// aTransform already contains the
// translational component, moving the clip to
// the final sprite output position.
aClipPoly.transform( aTransform );
if( mbShowSpriteBounds )
{
// Paint green sprite clip area
rTargetSurface.SetLineColor( Color( 0,255,0 ) );
rTargetSurface.SetFillColor();
rTargetSurface.DrawPolyPolygon(::tools::PolyPolygon(aClipPoly)); // #i76339#
}
vcl::Region aClipRegion( aClipPoly );
rTargetSurface.SetClipRegion( aClipRegion );
}
}
if( ::rtl::math::approxEqual(fAlpha, 1.0) )
{
// no alpha modulation -> just copy to output
if( maContent->IsTransparent() )
rTargetSurface.DrawBitmapEx( aOutPos, aOutputSize, *maContent );
else
rTargetSurface.DrawBitmap( aOutPos, aOutputSize, maContent->GetBitmap() );
}
else
{
// TODO(P3): Switch to OutputDevice::DrawTransparent()
// here
// draw semi-transparent
sal_uInt8 nColor( static_cast<sal_uInt8>( ::basegfx::fround( 255.0*(1.0 - fAlpha) + .5) ) );
AlphaMask aAlpha( maContent->GetSizePixel(),
&nColor );
// mask out fully transparent areas
if( maContent->IsTransparent() )
aAlpha.Replace( maContent->GetMask(), 255 );
// alpha-blend to output
rTargetSurface.DrawBitmapEx( aOutPos, aOutputSize,
BitmapEx( maContent->GetBitmap(),
aAlpha ) );
}
rTargetSurface.Pop();
if( mbShowSpriteBounds )
{
::tools::PolyPolygon aMarkerPoly(
::canvas::tools::getBoundMarksPolyPolygon(
::basegfx::B2DRectangle(aOutPos.X(),
aOutPos.Y(),
aOutPos.X() + aOutputSize.Width()-1,
aOutPos.Y() + aOutputSize.Height()-1) ) );
// Paint little red sprite area markers
rTargetSurface.SetLineColor( COL_RED );
rTargetSurface.SetFillColor();
for( int i=0; i<aMarkerPoly.Count(); ++i )
{
rTargetSurface.DrawPolyLine( aMarkerPoly.GetObject(static_cast<sal_uInt16>(i)) );
}
// paint sprite prio
vcl::Font aVCLFont;
aVCLFont.SetFontHeight( std::min(long(20),aOutputSize.Height()) );
aVCLFont.SetColor( COL_RED );
rTargetSurface.SetTextAlign(ALIGN_TOP);
rTargetSurface.SetTextColor( COL_RED );
rTargetSurface.SetFont( aVCLFont );
OUString text( ::rtl::math::doubleToUString( getPriority(),
rtl_math_StringFormat_F,
2,'.',nullptr,' ') );
rTargetSurface.DrawText( aOutPos+Point(2,2), text );
SAL_INFO( "canvas.vcl",
"sprite " << this << " has prio " << getPriority());
}
}
}
}
::basegfx::B2DPolyPolygon SpriteHelper::polyPolygonFromXPolyPolygon2D( uno::Reference< rendering::XPolyPolygon2D >& xPoly ) const
{
return ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D( xPoly );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
