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
|
/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkSpriteBlitter.h"
#include "SkBlitRow.h"
#include "SkColorFilter.h"
#include "SkColorPriv.h"
#include "SkTemplates.h"
#include "SkUtils.h"
#include "SkXfermode.h"
///////////////////////////////////////////////////////////////////////////////
class Sprite_D32_S32 : public SkSpriteBlitter {
public:
Sprite_D32_S32(const SkBitmap& src, U8CPU alpha) : INHERITED(src) {
SkASSERT(src.config() == SkBitmap::kARGB_8888_Config);
unsigned flags32 = 0;
if (255 != alpha) {
flags32 |= SkBlitRow::kGlobalAlpha_Flag32;
}
if (!src.isOpaque()) {
flags32 |= SkBlitRow::kSrcPixelAlpha_Flag32;
}
fProc32 = SkBlitRow::Factory32(flags32);
fAlpha = alpha;
}
virtual void blitRect(int x, int y, int width, int height) {
SkASSERT(width > 0 && height > 0);
uint32_t* SK_RESTRICT dst = fDevice->getAddr32(x, y);
const uint32_t* SK_RESTRICT src = fSource->getAddr32(x - fLeft,
y - fTop);
size_t dstRB = fDevice->rowBytes();
size_t srcRB = fSource->rowBytes();
SkBlitRow::Proc32 proc = fProc32;
U8CPU alpha = fAlpha;
do {
proc(dst, src, width, alpha);
dst = (uint32_t* SK_RESTRICT)((char*)dst + dstRB);
src = (const uint32_t* SK_RESTRICT)((const char*)src + srcRB);
} while (--height != 0);
}
private:
SkBlitRow::Proc32 fProc32;
U8CPU fAlpha;
typedef SkSpriteBlitter INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
class Sprite_D32_XferFilter : public SkSpriteBlitter {
public:
Sprite_D32_XferFilter(const SkBitmap& source, const SkPaint& paint)
: SkSpriteBlitter(source) {
fColorFilter = paint.getColorFilter();
SkSafeRef(fColorFilter);
fXfermode = paint.getXfermode();
SkSafeRef(fXfermode);
fBufferSize = 0;
fBuffer = NULL;
unsigned flags32 = 0;
if (255 != paint.getAlpha()) {
flags32 |= SkBlitRow::kGlobalAlpha_Flag32;
}
if (!source.isOpaque()) {
flags32 |= SkBlitRow::kSrcPixelAlpha_Flag32;
}
fProc32 = SkBlitRow::Factory32(flags32);
fAlpha = paint.getAlpha();
}
virtual ~Sprite_D32_XferFilter() {
delete[] fBuffer;
SkSafeUnref(fXfermode);
SkSafeUnref(fColorFilter);
}
virtual void setup(const SkBitmap& device, int left, int top,
const SkPaint& paint) {
this->INHERITED::setup(device, left, top, paint);
int width = device.width();
if (width > fBufferSize) {
fBufferSize = width;
delete[] fBuffer;
fBuffer = new SkPMColor[width];
}
}
protected:
SkColorFilter* fColorFilter;
SkXfermode* fXfermode;
int fBufferSize;
SkPMColor* fBuffer;
SkBlitRow::Proc32 fProc32;
U8CPU fAlpha;
private:
typedef SkSpriteBlitter INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
class Sprite_D32_S32A_XferFilter : public Sprite_D32_XferFilter {
public:
Sprite_D32_S32A_XferFilter(const SkBitmap& source, const SkPaint& paint)
: Sprite_D32_XferFilter(source, paint) {}
virtual void blitRect(int x, int y, int width, int height) {
SkASSERT(width > 0 && height > 0);
uint32_t* SK_RESTRICT dst = fDevice->getAddr32(x, y);
const uint32_t* SK_RESTRICT src = fSource->getAddr32(x - fLeft,
y - fTop);
size_t dstRB = fDevice->rowBytes();
size_t srcRB = fSource->rowBytes();
SkColorFilter* colorFilter = fColorFilter;
SkXfermode* xfermode = fXfermode;
do {
const SkPMColor* tmp = src;
if (NULL != colorFilter) {
colorFilter->filterSpan(src, width, fBuffer);
tmp = fBuffer;
}
if (NULL != xfermode) {
xfermode->xfer32(dst, tmp, width, NULL);
} else {
fProc32(dst, tmp, width, fAlpha);
}
dst = (uint32_t* SK_RESTRICT)((char*)dst + dstRB);
src = (const uint32_t* SK_RESTRICT)((const char*)src + srcRB);
} while (--height != 0);
}
private:
typedef Sprite_D32_XferFilter INHERITED;
};
static void fillbuffer(SkPMColor* SK_RESTRICT dst,
const SkPMColor16* SK_RESTRICT src, int count) {
SkASSERT(count > 0);
do {
*dst++ = SkPixel4444ToPixel32(*src++);
} while (--count != 0);
}
class Sprite_D32_S4444_XferFilter : public Sprite_D32_XferFilter {
public:
Sprite_D32_S4444_XferFilter(const SkBitmap& source, const SkPaint& paint)
: Sprite_D32_XferFilter(source, paint) {}
virtual void blitRect(int x, int y, int width, int height) {
SkASSERT(width > 0 && height > 0);
SkPMColor* SK_RESTRICT dst = fDevice->getAddr32(x, y);
const SkPMColor16* SK_RESTRICT src = fSource->getAddr16(x - fLeft,
y - fTop);
size_t dstRB = fDevice->rowBytes();
size_t srcRB = fSource->rowBytes();
SkPMColor* SK_RESTRICT buffer = fBuffer;
SkColorFilter* colorFilter = fColorFilter;
SkXfermode* xfermode = fXfermode;
do {
fillbuffer(buffer, src, width);
if (NULL != colorFilter) {
colorFilter->filterSpan(buffer, width, buffer);
}
if (NULL != xfermode) {
xfermode->xfer32(dst, buffer, width, NULL);
} else {
fProc32(dst, buffer, width, fAlpha);
}
dst = (SkPMColor* SK_RESTRICT)((char*)dst + dstRB);
src = (const SkPMColor16* SK_RESTRICT)((const char*)src + srcRB);
} while (--height != 0);
}
private:
typedef Sprite_D32_XferFilter INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static void src_row(SkPMColor* SK_RESTRICT dst,
const SkPMColor16* SK_RESTRICT src, int count) {
do {
*dst = SkPixel4444ToPixel32(*src);
src += 1;
dst += 1;
} while (--count != 0);
}
class Sprite_D32_S4444_Opaque : public SkSpriteBlitter {
public:
Sprite_D32_S4444_Opaque(const SkBitmap& source) : SkSpriteBlitter(source) {}
virtual void blitRect(int x, int y, int width, int height) {
SkASSERT(width > 0 && height > 0);
SkPMColor* SK_RESTRICT dst = fDevice->getAddr32(x, y);
const SkPMColor16* SK_RESTRICT src = fSource->getAddr16(x - fLeft,
y - fTop);
size_t dstRB = fDevice->rowBytes();
size_t srcRB = fSource->rowBytes();
do {
src_row(dst, src, width);
dst = (SkPMColor* SK_RESTRICT)((char*)dst + dstRB);
src = (const SkPMColor16* SK_RESTRICT)((const char*)src + srcRB);
} while (--height != 0);
}
};
static void srcover_row(SkPMColor* SK_RESTRICT dst,
const SkPMColor16* SK_RESTRICT src, int count) {
do {
*dst = SkPMSrcOver(SkPixel4444ToPixel32(*src), *dst);
src += 1;
dst += 1;
} while (--count != 0);
}
class Sprite_D32_S4444 : public SkSpriteBlitter {
public:
Sprite_D32_S4444(const SkBitmap& source) : SkSpriteBlitter(source) {}
virtual void blitRect(int x, int y, int width, int height) {
SkASSERT(width > 0 && height > 0);
SkPMColor* SK_RESTRICT dst = fDevice->getAddr32(x, y);
const SkPMColor16* SK_RESTRICT src = fSource->getAddr16(x - fLeft,
y - fTop);
size_t dstRB = fDevice->rowBytes();
size_t srcRB = fSource->rowBytes();
do {
srcover_row(dst, src, width);
dst = (SkPMColor* SK_RESTRICT)((char*)dst + dstRB);
src = (const SkPMColor16* SK_RESTRICT)((const char*)src + srcRB);
} while (--height != 0);
}
};
///////////////////////////////////////////////////////////////////////////////
#include "SkTemplatesPriv.h"
SkSpriteBlitter* SkSpriteBlitter::ChooseD32(const SkBitmap& source,
const SkPaint& paint,
void* storage, size_t storageSize) {
if (paint.getMaskFilter() != NULL) {
return NULL;
}
U8CPU alpha = paint.getAlpha();
SkXfermode* xfermode = paint.getXfermode();
SkColorFilter* filter = paint.getColorFilter();
SkSpriteBlitter* blitter = NULL;
switch (source.getConfig()) {
case SkBitmap::kARGB_4444_Config:
if (alpha != 0xFF) {
return NULL; // we only have opaque sprites
}
if (xfermode || filter) {
SK_PLACEMENT_NEW_ARGS(blitter, Sprite_D32_S4444_XferFilter,
storage, storageSize, (source, paint));
} else if (source.isOpaque()) {
SK_PLACEMENT_NEW_ARGS(blitter, Sprite_D32_S4444_Opaque,
storage, storageSize, (source));
} else {
SK_PLACEMENT_NEW_ARGS(blitter, Sprite_D32_S4444,
storage, storageSize, (source));
}
break;
case SkBitmap::kARGB_8888_Config:
if (xfermode || filter) {
if (255 == alpha) {
// this can handle xfermode or filter, but not alpha
SK_PLACEMENT_NEW_ARGS(blitter, Sprite_D32_S32A_XferFilter,
storage, storageSize, (source, paint));
}
} else {
// this can handle alpha, but not xfermode or filter
SK_PLACEMENT_NEW_ARGS(blitter, Sprite_D32_S32,
storage, storageSize, (source, alpha));
}
break;
default:
break;
}
return blitter;
}
|
