1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10
11 #ifndef SkGPipePriv_DEFINED
12 #define SkGPipePriv_DEFINED
13
14 #include "SkTypes.h"
15
16 #define UNIMPLEMENTED
17
18 // these must be contiguous, 0...N-1
19 enum PaintFlats {
20 kColorFilter_PaintFlat,
21 kDrawLooper_PaintFlat,
22 kImageFilter_PaintFlat,
23 kMaskFilter_PaintFlat,
24 kPathEffect_PaintFlat,
25 kRasterizer_PaintFlat,
26 kShader_PaintFlat,
27 kXfermode_PaintFlat,
28
29 kLast_PaintFlat = kXfermode_PaintFlat
30 };
31 #define kCount_PaintFlats (kLast_PaintFlat + 1)
32
33 enum DrawOps {
34 kSkip_DrawOp, // skip an addition N bytes (N == data)
35
36 // these match Canvas apis
37 kClipPath_DrawOp,
38 kClipRegion_DrawOp,
39 kClipRect_DrawOp,
40 kClipRRect_DrawOp,
41 kConcat_DrawOp,
42 kDrawBitmap_DrawOp,
43 kDrawBitmapMatrix_DrawOp,
44 kDrawBitmapNine_DrawOp,
45 kDrawBitmapRectToRect_DrawOp,
46 kDrawClear_DrawOp,
47 kDrawData_DrawOp,
48 kDrawDRRect_DrawOp,
49 kDrawOval_DrawOp,
50 kDrawPaint_DrawOp,
51 kDrawPath_DrawOp,
52 kDrawPicture_DrawOp,
53 kDrawPoints_DrawOp,
54 kDrawPosText_DrawOp,
55 kDrawPosTextH_DrawOp,
56 kDrawRect_DrawOp,
57 kDrawRRect_DrawOp,
58 kDrawSprite_DrawOp,
59 kDrawText_DrawOp,
60 kDrawTextOnPath_DrawOp,
61 kDrawVertices_DrawOp,
62 kRestore_DrawOp,
63 kRotate_DrawOp,
64 kSave_DrawOp,
65 kSaveLayer_DrawOp,
66 kScale_DrawOp,
67 kSetMatrix_DrawOp,
68 kSkew_DrawOp,
69 kTranslate_DrawOp,
70
71 kPaintOp_DrawOp,
72 kSetTypeface_DrawOp,
73 kSetAnnotation_DrawOp,
74
75 kDef_Typeface_DrawOp,
76 kDef_Flattenable_DrawOp,
77 kDef_Bitmap_DrawOp,
78 kDef_Factory_DrawOp,
79
80 // these are signals to playback, not drawing verbs
81 kReportFlags_DrawOp,
82 kShareBitmapHeap_DrawOp,
83 kDone_DrawOp,
84 };
85
86 /**
87 * DrawOp packs into a 32bit int as follows
88 *
89 * DrawOp:8 - Flags:4 - Data:20
90 *
91 * Flags and Data are called out separately, so we can reuse Data between
92 * different Ops that might have different Flags. e.g. Data might be a Paint
93 * index for both drawRect (no flags) and saveLayer (does have flags).
94 *
95 * All Ops that take a SkPaint use their Data field to store the index to
96 * the paint (previously defined with kPaintOp_DrawOp).
97 */
98
99 #define DRAWOPS_OP_BITS 8
100 #define DRAWOPS_FLAG_BITS 4
101 #define DRAWOPS_DATA_BITS 20
102
103 #define DRAWOPS_OP_MASK ((1 << DRAWOPS_OP_BITS) - 1)
104 #define DRAWOPS_FLAG_MASK ((1 << DRAWOPS_FLAG_BITS) - 1)
105 #define DRAWOPS_DATA_MASK ((1 << DRAWOPS_DATA_BITS) - 1)
106
DrawOp_unpackOp(uint32_t op32)107 static inline unsigned DrawOp_unpackOp(uint32_t op32) {
108 return (op32 >> (DRAWOPS_FLAG_BITS + DRAWOPS_DATA_BITS));
109 }
110
DrawOp_unpackFlags(uint32_t op32)111 static inline unsigned DrawOp_unpackFlags(uint32_t op32) {
112 return (op32 >> DRAWOPS_DATA_BITS) & DRAWOPS_FLAG_MASK;
113 }
114
DrawOp_unpackData(uint32_t op32)115 static inline unsigned DrawOp_unpackData(uint32_t op32) {
116 return op32 & DRAWOPS_DATA_MASK;
117 }
118
DrawOp_packOpFlagData(DrawOps op,unsigned flags,unsigned data)119 static inline uint32_t DrawOp_packOpFlagData(DrawOps op, unsigned flags, unsigned data) {
120 SkASSERT(0 == (op & ~DRAWOPS_OP_MASK));
121 SkASSERT(0 == (flags & ~DRAWOPS_FLAG_MASK));
122 SkASSERT(0 == (data & ~DRAWOPS_DATA_MASK));
123
124 return (op << (DRAWOPS_FLAG_BITS + DRAWOPS_DATA_BITS)) |
125 (flags << DRAWOPS_DATA_BITS) |
126 data;
127 }
128
129 /** DrawOp specific flag bits
130 */
131
132 enum {
133 kSaveLayer_HasBounds_DrawOpFlag = 1 << 0,
134 kSaveLayer_HasPaint_DrawOpFlag = 1 << 1,
135 };
136 enum {
137 kClear_HasColor_DrawOpFlag = 1 << 0
138 };
139 enum {
140 kDrawTextOnPath_HasMatrix_DrawOpFlag = 1 << 0
141 };
142 enum {
143 kDrawVertices_HasTexs_DrawOpFlag = 1 << 0,
144 kDrawVertices_HasColors_DrawOpFlag = 1 << 1,
145 kDrawVertices_HasIndices_DrawOpFlag = 1 << 2,
146 kDrawVertices_HasXfermode_DrawOpFlag = 1 << 3,
147 };
148 enum {
149 kDrawBitmap_HasPaint_DrawOpFlag = 1 << 0,
150 // Specific to drawBitmapRect, but needs to be different from HasPaint,
151 // which is used for all drawBitmap calls, so include it here.
152 kDrawBitmap_HasSrcRect_DrawOpFlag = 1 << 1,
153 // SkCanvas::DrawBitmapRectFlags::kBleed_DrawBitmapRectFlag is
154 // converted into and out of this flag to save space
155 kDrawBitmap_Bleed_DrawOpFlag = 1 << 2,
156 };
157 enum {
158 kClip_HasAntiAlias_DrawOpFlag = 1 << 0,
159 };
160 ///////////////////////////////////////////////////////////////////////////////
161
162 class BitmapInfo : SkNoncopyable {
163 public:
BitmapInfo(SkBitmap * bitmap,uint32_t genID,int toBeDrawnCount)164 BitmapInfo(SkBitmap* bitmap, uint32_t genID, int toBeDrawnCount)
165 : fBitmap(bitmap)
166 , fGenID(genID)
167 , fBytesAllocated(0)
168 , fMoreRecentlyUsed(NULL)
169 , fLessRecentlyUsed(NULL)
170 , fToBeDrawnCount(toBeDrawnCount)
171 {}
172
~BitmapInfo()173 ~BitmapInfo() {
174 SkASSERT(0 == fToBeDrawnCount);
175 SkDELETE(fBitmap);
176 }
177
addDraws(int drawsToAdd)178 void addDraws(int drawsToAdd) {
179 if (0 == fToBeDrawnCount) {
180 // The readers will only ever decrement the count, so once the
181 // count is zero, the writer will be the only one modifying it,
182 // so it does not need to be an atomic operation.
183 fToBeDrawnCount = drawsToAdd;
184 } else {
185 sk_atomic_add(&fToBeDrawnCount, drawsToAdd);
186 }
187 }
188
decDraws()189 void decDraws() {
190 sk_atomic_dec(&fToBeDrawnCount);
191 }
192
drawCount()193 int drawCount() const {
194 return fToBeDrawnCount;
195 }
196
197 SkBitmap* fBitmap;
198 // Store the generation ID of the original bitmap, since copying does
199 // not copy this field, so fBitmap's generation ID will not be useful
200 // for comparing.
201 // FIXME: Is it reasonable to make copying a bitmap/pixelref copy the
202 // generation ID?
203 uint32_t fGenID;
204 // Keep track of the bytes allocated for this bitmap. When replacing the
205 // bitmap or removing this BitmapInfo we know how much memory has been
206 // reclaimed.
207 size_t fBytesAllocated;
208 // TODO: Generalize the LRU caching mechanism
209 BitmapInfo* fMoreRecentlyUsed;
210 BitmapInfo* fLessRecentlyUsed;
211 private:
212 int fToBeDrawnCount;
213 };
214
shouldFlattenBitmaps(uint32_t flags)215 static inline bool shouldFlattenBitmaps(uint32_t flags) {
216 return SkToBool(flags & SkGPipeWriter::kCrossProcess_Flag
217 && !(flags & SkGPipeWriter::kSharedAddressSpace_Flag));
218 }
219
220 ///////////////////////////////////////////////////////////////////////////////
221
222 enum PaintOps {
223 kReset_PaintOp, // no arg
224
225 kFlags_PaintOp, // arg inline
226 kColor_PaintOp, // arg 32
227 kFilterLevel_PaintOp, // arg inline
228 kStyle_PaintOp, // arg inline
229 kJoin_PaintOp, // arg inline
230 kCap_PaintOp, // arg inline
231 kWidth_PaintOp, // arg scalar
232 kMiter_PaintOp, // arg scalar
233
234 kEncoding_PaintOp, // arg inline - text
235 kHinting_PaintOp, // arg inline - text
236 kAlign_PaintOp, // arg inline - text
237 kTextSize_PaintOp, // arg scalar - text
238 kTextScaleX_PaintOp,// arg scalar - text
239 kTextSkewX_PaintOp, // arg scalar - text
240 kTypeface_PaintOp, // arg inline (index) - text
241
242 kFlatIndex_PaintOp, // flags=paintflat, data=index
243 };
244
245 #define PAINTOPS_OP_BITS 8
246 #define PAINTOPS_FLAG_BITS 4
247 #define PAINTOPS_DATA_BITS 20
248
249 #define PAINTOPS_OP_MASK ((1 << PAINTOPS_OP_BITS) - 1)
250 #define PAINTOPS_FLAG_MASK ((1 << PAINTOPS_FLAG_BITS) - 1)
251 #define PAINTOPS_DATA_MASK ((1 << PAINTOPS_DATA_BITS) - 1)
252
PaintOp_unpackOp(uint32_t op32)253 static inline unsigned PaintOp_unpackOp(uint32_t op32) {
254 return (op32 >> (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS));
255 }
256
PaintOp_unpackFlags(uint32_t op32)257 static inline unsigned PaintOp_unpackFlags(uint32_t op32) {
258 return (op32 >> PAINTOPS_DATA_BITS) & PAINTOPS_FLAG_MASK;
259 }
260
PaintOp_unpackData(uint32_t op32)261 static inline unsigned PaintOp_unpackData(uint32_t op32) {
262 return op32 & PAINTOPS_DATA_MASK;
263 }
264
PaintOp_packOp(PaintOps op)265 static inline uint32_t PaintOp_packOp(PaintOps op) {
266 SkASSERT(0 == (op & ~PAINTOPS_OP_MASK));
267
268 return op << (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS);
269 }
270
PaintOp_packOpData(PaintOps op,unsigned data)271 static inline uint32_t PaintOp_packOpData(PaintOps op, unsigned data) {
272 SkASSERT(0 == (op & ~PAINTOPS_OP_MASK));
273 SkASSERT(0 == (data & ~PAINTOPS_DATA_MASK));
274
275 return (op << (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS)) | data;
276 }
277
PaintOp_packOpFlagData(PaintOps op,unsigned flags,unsigned data)278 static inline uint32_t PaintOp_packOpFlagData(PaintOps op, unsigned flags, unsigned data) {
279 SkASSERT(0 == (op & ~PAINTOPS_OP_MASK));
280 SkASSERT(0 == (flags & ~PAINTOPS_FLAG_MASK));
281 SkASSERT(0 == (data & ~PAINTOPS_DATA_MASK));
282
283 return (op << (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS)) |
284 (flags << PAINTOPS_DATA_BITS) |
285 data;
286 }
287
288 #endif
289