Line data Source code
1 : /*
2 : * Copyright 2016 Google Inc.
3 : *
4 : * Use of this source code is governed by a BSD-style license that can be
5 : * found in the LICENSE file.
6 : */
7 :
8 : #ifndef SkPipeFormat_DEFINED
9 : #define SkPipeFormat_DEFINED
10 :
11 : #include "SkTypes.h"
12 :
13 : #define kDefinePicture_ExtPipeVerb SkSetFourByteTag('s', 'k', 'p', 'i')
14 :
15 : enum class SkPipeVerb : uint8_t {
16 : kSave, // extra == 0
17 : kSaveLayer,
18 : kRestore, // extra == 0
19 : kConcat, // extra == SkMatrix::MaskType
20 :
21 : kClipRect, // extra == (SkRegion::Op << 1) | isAntiAlias:1
22 : kClipRRect, // extra == (SkRegion::Op << 1) | isAntiAlias:1
23 : kClipPath, // extra == (SkRegion::Op << 1) | isAntiAlias:1
24 : kClipRegion, // extra == (SkRegion::Op << 1)
25 :
26 : kDrawArc, // extra == useCenter
27 : kDrawAtlas, // extra == has_colors | has_cull | has_paint | mode
28 : kDrawDRRect,
29 : kDrawText, // extra == byteLength:24 else next 32
30 : kDrawPosText, // extra == byteLength:24 else next 32
31 : kDrawPosTextH, // extra == byteLength:24 else next 32
32 : kDrawRegion, // extra == size:24 of region, or 0 means next 32
33 : kDrawTextOnPath,
34 : kDrawTextBlob,
35 : kDrawTextRSXform, // extra == (byteLength:23 << 1) else next 32 | has_cull_rect:1
36 : kDrawPatch,
37 : kDrawPaint, // extra == 0
38 : kDrawPoints, // extra == PointMode
39 : kDrawRect, // extra == 0
40 : kDrawPath, // extra == 0
41 : kDrawOval, // extra == 0
42 : kDrawRRect, // extra == 0
43 :
44 : kDrawImage, // extra == has_paint:1
45 : kDrawImageRect, // extra == constraint | has_src_rect | has_paint
46 : kDrawImageNine, // extra == has_paint:1
47 : kDrawImageLattice, // extra == x_count:8 | y_count:8 | has_paint:1
48 :
49 : kDrawVertices,
50 :
51 : kDrawPicture, // extra == picture_index
52 : kDrawAnnotation, // extra == (key_len_plus_1:23 << 1) else next 32 | has_data:1
53 :
54 : kDefineImage, // extra == image_index
55 : kDefineTypeface,
56 : kDefineFactory, // extra == factory_index (followed by padded getTypeName string)
57 : kDefinePicture, // extra == 0 or forget_index + 1 (0 means we're defining a new picture)
58 : kEndPicture, // extra == picture_index
59 : kWriteImage, // extra == image_index
60 : kWritePicture, // extra == picture_index
61 : };
62 :
63 : enum PaintUsage {
64 : kText_PaintUsage = 1 << 0,
65 : kTextBlob_PaintUsage = 1 << 1,
66 : kGeometry_PaintUsage = 1 << 2,
67 : kImage_PaintUsage = 1 << 3,
68 : kSaveLayer_PaintUsage = 1 << 4,
69 : kDrawPaint_PaintUsage = 1 << 5,
70 : kVertices_PaintUsage = 1 << 6,
71 : kRespectsStroke_PaintUsage = 1 << 7,
72 : kUnknown_PaintUsage = 0xFF,
73 : };
74 :
75 : // must sum to <= 32
76 : enum BitsPerField {
77 : kFlags_BPF = 16,
78 : kFilter_BPF = 2,
79 : kStyle_BPF = 2,
80 : kCaps_BPF = 2,
81 : kJoins_BPF = 2,
82 : kHint_BPF = 2,
83 : kAlign_BPF = 2,
84 : kEncoding_BPF = 2,
85 : };
86 :
87 : enum {
88 : kTextSize_NonDef = 1 << 0,
89 : kTextScaleX_NonDef = 1 << 1,
90 : kTextSkewX_NonDef = 1 << 2,
91 : kStrokeWidth_NonDef = 1 << 3,
92 : kStrokeMiter_NonDef = 1 << 4,
93 : kColor_NonDef = 1 << 5,
94 : kTypeface_NonDef = 1 << 6,
95 : kPathEffect_NonDef = 1 << 7,
96 : kShader_NonDef = 1 << 8,
97 : kMaskFilter_NonDef = 1 << 9,
98 : kColorFilter_NonDef = 1 << 10,
99 : kRasterizer_NonDef = 1 << 11,
100 : kImageFilter_NonDef = 1 << 12,
101 : kDrawLooper_NonDef = 1 << 13,
102 : };
103 :
104 : enum {
105 : kFlags_SaveLayerMask = 0xFF,
106 : kHasBounds_SaveLayerMask = 1 << 8,
107 : kHasPaint_SaveLayerMask = 1 << 9,
108 : kHasBackdrop_SaveLayerMask = 1 << 10,
109 : kDontClipToLayer_SaveLayerMask = 1 << 11,
110 : };
111 :
112 : enum {
113 : kObjectDefinitionBits = 20,
114 : kIndex_ObjectDefinitionMask = ((1 << kObjectDefinitionBits) - 1),
115 : kUser_ObjectDefinitionMask = 0x7 << kObjectDefinitionBits,
116 : kUndef_ObjectDefinitionMask = 1 << 23,
117 : // (Undef:1 | User:3 | Index:20) must fit in extra:24
118 : };
119 :
120 : enum {
121 : kTypeMask_ConcatMask = 0xF,
122 : kSetMatrix_ConcatMask = 1 << 4,
123 : };
124 :
125 : enum {
126 : kMode_DrawAtlasMask = 0xFF,
127 : kHasColors_DrawAtlasMask = 1 << 8,
128 : kHasCull_DrawAtlasMask = 1 << 9,
129 : kHasPaint_DrawAtlasMask = 1 << 10,
130 : };
131 :
132 : enum {
133 : kHasPaint_DrawImageMask = 1 << 0,
134 : };
135 :
136 : enum {
137 : kConstraint_DrawImageRectMask = 1 << 0,
138 : kHasPaint_DrawImageRectMask = 1 << 1,
139 : kHasSrcRect_DrawImageRectMask = 1 << 2,
140 : };
141 :
142 : enum {
143 : kHasPaint_DrawImageNineMask = 1 << 0,
144 : };
145 :
146 : enum {
147 : // picture_index takes the first kObjectDefinitionBits bits
148 : kHasMatrix_DrawPictureExtra = 1 << 21,
149 : kHasPaint_DrawPictureExtra = 1 << 22,
150 : };
151 :
152 : enum {
153 : kIndex_DefineFactoryExtraBits = 10,
154 : kNameLength_DefineFactoryExtraBits = 14, // includes trailing 0
155 : kNameLength_DefineFactoryExtraMask = (1 << kNameLength_DefineFactoryExtraBits) - 1,
156 : };
157 :
158 : enum {
159 : kModeEnum_DrawPatchExtraMask = 0xFF,
160 : kExplicitXfer_DrawPatchExtraValue = 0xFF,
161 : kHasColors_DrawPatchExtraMask = 0x100,
162 : kHasTexture_DrawPatchExtraMask = 0x200,
163 : };
164 :
165 : enum {
166 : // if we store a zero for VCount, then read an int after the packedverb for the vcount
167 : kVCount_DrawVerticesMask = (1 << 11) - 1,
168 :
169 : kVMode_DrawVerticesShift = 11,
170 : kVMode_DrawVerticesMask = 3 << kVMode_DrawVerticesShift,
171 :
172 : kXMode_DrawVerticesShift = 13,
173 : kXMode_DrawVerticesMask = 0xFF << kXMode_DrawVerticesShift,
174 :
175 : kHasTex_DrawVerticesMask = 1 << 21,
176 : kHasColors_DrawVerticesMask = 1 << 22,
177 : kHasIndices_DrawVerticesMask = 1 << 23,
178 : };
179 :
180 : enum {
181 : kTextLength_DrawTextOnPathMask = (1 << 16) - 1,
182 : kMatrixType_DrawTextOnPathShift = 16,
183 : kMatrixType_DrawTextOnPathMask = 0xF << kMatrixType_DrawTextOnPathShift,
184 : };
185 :
186 : enum {
187 : kHasPaint_DrawImageLatticeMask = 1 << 0,
188 : kHasFlags_DrawImageLatticeMask = 1 << 1,
189 : kXCount_DrawImageLatticeShift = 2, // bits 2:9 are xcount or FF means 32bits follow
190 : kYCount_DrawImageLatticeShift = 10, // bits 10:17 are ycount or FF means 32bits follow
191 : kCount_DrawImageLatticeMask = 0xFF, // sentinel for 32bits follow,
192 : // thus max inline count is 254
193 : };
194 :
195 : ///////////////////////////////////////////////////////////////////////////////////////////////////
196 :
197 0 : static inline bool fits_in(int value, int bits) {
198 0 : return value >= 0 && value < (1 << bits);
199 : }
200 :
201 0 : static inline void ASSERT_FITS_IN(int value, int bits) {
202 0 : SkASSERT(fits_in(value, bits));
203 0 : }
204 :
205 0 : static inline uint32_t pack_verb(SkPipeVerb verb, unsigned extra = 0) {
206 : //SkDebugf("pack [%d] %d\n", verb, extra);
207 0 : ASSERT_FITS_IN((unsigned)verb, 8);
208 0 : ASSERT_FITS_IN(extra, 24);
209 0 : return ((uint32_t)verb << 24) | extra;
210 : }
211 :
212 0 : static inline SkPipeVerb unpack_verb(uint32_t data) {
213 0 : return (SkPipeVerb)(data >> 24);
214 : }
215 :
216 0 : static inline unsigned unpack_verb_extra(uint32_t data) {
217 0 : return data & 0xFFFFFF;
218 : }
219 :
220 : #endif
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