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 static inline bool fits_in(int value, int bits) { 198 return value >= 0 && value < (1 << bits); 199 } 200 201 static inline void ASSERT_FITS_IN(int value, int bits) { 202 SkASSERT(fits_in(value, bits)); 203 } 204 205 static inline uint32_t pack_verb(SkPipeVerb verb, unsigned extra = 0) { 206 //SkDebugf("pack [%d] %d\n", verb, extra); 207 ASSERT_FITS_IN((unsigned)verb, 8); 208 ASSERT_FITS_IN(extra, 24); 209 return ((uint32_t)verb << 24) | extra; 210 } 211 212 static inline SkPipeVerb unpack_verb(uint32_t data) { 213 return (SkPipeVerb)(data >> 24); 214 } 215 216 static inline unsigned unpack_verb_extra(uint32_t data) { 217 return data & 0xFFFFFF; 218 } 219 220 #endif 221
