1 /* 2 * Copyright 2011 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 #ifndef SkPictureFlat_DEFINED 8 #define SkPictureFlat_DEFINED 9 10 #include "SkCanvas.h" 11 #include "SkChecksum.h" 12 #include "SkReadBuffer.h" 13 #include "SkWriteBuffer.h" 14 #include "SkPaint.h" 15 #include "SkPicture.h" 16 #include "SkPtrRecorder.h" 17 #include "SkTDynamicHash.h" 18 19 /* 20 * Note: While adding new DrawTypes, it is necessary to add to the end of this list 21 * and update LAST_DRAWTYPE_ENUM to avoid having the code read older skps wrong. 22 * (which can cause segfaults) 23 * 24 * Reordering can be done during version updates. 25 */ 26 enum DrawType { 27 UNUSED, 28 CLIP_PATH, 29 CLIP_REGION, 30 CLIP_RECT, 31 CLIP_RRECT, 32 CONCAT, 33 DRAW_BITMAP_RETIRED_2016_REMOVED_2018, 34 DRAW_BITMAP_MATRIX_RETIRED_2016_REMOVED_2018, 35 DRAW_BITMAP_NINE_RETIRED_2016_REMOVED_2018, 36 DRAW_BITMAP_RECT_RETIRED_2016_REMOVED_2018, 37 DRAW_CLEAR, 38 DRAW_DATA, 39 DRAW_OVAL, 40 DRAW_PAINT, 41 DRAW_PATH, 42 DRAW_PICTURE, 43 DRAW_POINTS, 44 DRAW_POS_TEXT_REMOVED_1_2019, 45 DRAW_POS_TEXT_TOP_BOTTOM_REMOVED_1_2019, 46 DRAW_POS_TEXT_H_REMOVED_1_2019, 47 DRAW_POS_TEXT_H_TOP_BOTTOM_REMOVED_1_2019, 48 DRAW_RECT, 49 DRAW_RRECT, 50 DRAW_SPRITE_RETIRED_2015_REMOVED_2018, 51 DRAW_TEXT_REMOVED_1_2019, 52 DRAW_TEXT_ON_PATH_RETIRED_08_2018_REMOVED_10_2018, 53 DRAW_TEXT_TOP_BOTTOM_REMOVED_1_2019, 54 DRAW_VERTICES_RETIRED_03_2017_REMOVED_01_2018, 55 RESTORE, 56 ROTATE, 57 SAVE, 58 SAVE_LAYER_SAVEFLAGS_DEPRECATED, 59 SCALE, 60 SET_MATRIX, 61 SKEW, 62 TRANSLATE, 63 NOOP, 64 BEGIN_COMMENT_GROUP_obsolete, 65 COMMENT_obsolete, 66 END_COMMENT_GROUP_obsolete, 67 68 // new ops -- feel free to re-alphabetize on next version bump 69 DRAW_DRRECT, 70 PUSH_CULL, // deprecated, M41 was last Chromium version to write this to an .skp 71 POP_CULL, // deprecated, M41 was last Chromium version to write this to an .skp 72 73 DRAW_PATCH, // could not add in aphabetical order 74 DRAW_PICTURE_MATRIX_PAINT, 75 DRAW_TEXT_BLOB, 76 DRAW_IMAGE, 77 DRAW_IMAGE_RECT_STRICT_obsolete, 78 DRAW_ATLAS, 79 DRAW_IMAGE_NINE, 80 DRAW_IMAGE_RECT, 81 82 SAVE_LAYER_SAVELAYERFLAGS_DEPRECATED_JAN_2016_REMOVED_01_2018, 83 SAVE_LAYER_SAVELAYERREC, 84 85 DRAW_ANNOTATION, 86 DRAW_DRAWABLE, 87 DRAW_DRAWABLE_MATRIX, 88 DRAW_TEXT_RSXFORM_DEPRECATED_DEC_2018, 89 90 TRANSLATE_Z, // deprecated (M60) 91 92 DRAW_SHADOW_REC, 93 DRAW_IMAGE_LATTICE, 94 DRAW_ARC, 95 DRAW_REGION, 96 DRAW_VERTICES_OBJECT, 97 98 FLUSH, 99 100 DRAW_IMAGE_SET, 101 102 SAVE_BEHIND, 103 104 DRAW_EDGEAA_RECT, 105 106 DRAW_BEHIND_PAINT, 107 108 LAST_DRAWTYPE_ENUM = DRAW_BEHIND_PAINT, 109 }; 110 111 enum DrawVertexFlags { 112 DRAW_VERTICES_HAS_TEXS = 0x01, 113 DRAW_VERTICES_HAS_COLORS = 0x02, 114 DRAW_VERTICES_HAS_INDICES = 0x04, 115 DRAW_VERTICES_HAS_XFER = 0x08, 116 }; 117 118 enum DrawAtlasFlags { 119 DRAW_ATLAS_HAS_COLORS = 1 << 0, 120 DRAW_ATLAS_HAS_CULL = 1 << 1, 121 }; 122 123 enum DrawTextRSXformFlags { 124 DRAW_TEXT_RSXFORM_HAS_CULL = 1 << 0, 125 }; 126 127 enum SaveLayerRecFlatFlags { 128 SAVELAYERREC_HAS_BOUNDS = 1 << 0, 129 SAVELAYERREC_HAS_PAINT = 1 << 1, 130 SAVELAYERREC_HAS_BACKDROP = 1 << 2, 131 SAVELAYERREC_HAS_FLAGS = 1 << 3, 132 SAVELAYERREC_HAS_CLIPMASK = 1 << 4, 133 SAVELAYERREC_HAS_CLIPMATRIX = 1 << 5, 134 }; 135 136 enum SaveBehindFlatFlags { 137 SAVEBEHIND_HAS_SUBSET = 1 << 0, 138 }; 139 140 /////////////////////////////////////////////////////////////////////////////// 141 // clipparams are packed in 5 bits 142 // doAA:1 | clipOp:4 143 ClipParams_pack(SkClipOp op,bool doAA)144 static inline uint32_t ClipParams_pack(SkClipOp op, bool doAA) { 145 unsigned doAABit = doAA ? 1 : 0; 146 return (doAABit << 4) | static_cast<int>(op); 147 } 148 asValidEnum(SkReadBuffer * buffer,uint32_t candidate)149 template <typename T> T asValidEnum(SkReadBuffer* buffer, uint32_t candidate) { 150 151 if (buffer->validate(candidate <= static_cast<uint32_t>(T::kMax_EnumValue))) { 152 return static_cast<T>(candidate); 153 } 154 155 return T::kMax_EnumValue; 156 } 157 ClipParams_unpackRegionOp(SkReadBuffer * buffer,uint32_t packed)158 static inline SkClipOp ClipParams_unpackRegionOp(SkReadBuffer* buffer, uint32_t packed) { 159 return asValidEnum<SkClipOp>(buffer, packed & 0xF); 160 } 161 ClipParams_unpackDoAA(uint32_t packed)162 static inline bool ClipParams_unpackDoAA(uint32_t packed) { 163 return SkToBool((packed >> 4) & 1); 164 } 165 166 /////////////////////////////////////////////////////////////////////////////// 167 168 class SkTypefacePlayback { 169 public: SkTypefacePlayback()170 SkTypefacePlayback() : fCount(0), fArray(nullptr) {} 171 ~SkTypefacePlayback() = default; 172 173 void setCount(size_t count); 174 count()175 size_t count() const { return fCount; } 176 177 sk_sp<SkTypeface>& operator[](size_t index) { 178 SkASSERT(index < fCount); 179 return fArray[index]; 180 } 181 setupBuffer(SkReadBuffer & buffer)182 void setupBuffer(SkReadBuffer& buffer) const { 183 buffer.setTypefaceArray(fArray.get(), fCount); 184 } 185 186 protected: 187 size_t fCount; 188 std::unique_ptr<sk_sp<SkTypeface>[]> fArray; 189 }; 190 191 class SkFactoryPlayback { 192 public: SkFactoryPlayback(int count)193 SkFactoryPlayback(int count) : fCount(count) { fArray = new SkFlattenable::Factory[count]; } 194 ~SkFactoryPlayback()195 ~SkFactoryPlayback() { delete[] fArray; } 196 base()197 SkFlattenable::Factory* base() const { return fArray; } 198 setupBuffer(SkReadBuffer & buffer)199 void setupBuffer(SkReadBuffer& buffer) const { 200 buffer.setFactoryPlayback(fArray, fCount); 201 } 202 203 private: 204 int fCount; 205 SkFlattenable::Factory* fArray; 206 }; 207 208 #endif 209