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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkPipeFormat_DEFINED
#define SkPipeFormat_DEFINED
#include "SkTypes.h"
#define kDefinePicture_ExtPipeVerb SkSetFourByteTag('s', 'k', 'p', 'i')
enum class SkPipeVerb : uint8_t {
kSave, // extra == 0
kSaveLayer,
kRestore, // extra == 0
kConcat, // extra == SkMatrix::MaskType
kClipRect, // extra == (SkRegion::Op << 1) | isAntiAlias:1
kClipRRect, // extra == (SkRegion::Op << 1) | isAntiAlias:1
kClipPath, // extra == (SkRegion::Op << 1) | isAntiAlias:1
kClipRegion, // extra == (SkRegion::Op << 1)
kDrawArc, // extra == useCenter
kDrawAtlas, // extra == has_colors | has_cull | has_paint | mode
kDrawDRRect,
kDrawText, // extra == byteLength:24 else next 32
kDrawPosText, // extra == byteLength:24 else next 32
kDrawPosTextH, // extra == byteLength:24 else next 32
kDrawRegion, // extra == size:24 of region, or 0 means next 32
kDrawTextOnPath,
kDrawTextBlob,
kDrawTextRSXform, // extra == (byteLength:23 << 1) else next 32 | has_cull_rect:1
kDrawPatch,
kDrawPaint, // extra == 0
kDrawPoints, // extra == PointMode
kDrawRect, // extra == 0
kDrawPath, // extra == 0
kDrawShadowRec, // extra == 0
kDrawOval, // extra == 0
kDrawRRect, // extra == 0
kDrawImage, // extra == has_paint:1
kDrawImageRect, // extra == constraint | has_src_rect | has_paint
kDrawImageNine, // extra == has_paint:1
kDrawImageLattice, // extra == has_paint:1
kDrawVertices,
kDrawPicture, // extra == picture_index
kDrawAnnotation, // extra == (key_len_plus_1:23 << 1) else next 32 | has_data:1
kDefineImage, // extra == image_index
kDefineTypeface,
kDefineFactory, // extra == factory_index (followed by padded getTypeName string)
kDefinePicture, // extra == 0 or forget_index + 1 (0 means we're defining a new picture)
kEndPicture, // extra == picture_index
kWriteImage, // extra == image_index
kWritePicture, // extra == picture_index
};
enum PaintUsage {
kText_PaintUsage = 1 << 0,
kTextBlob_PaintUsage = 1 << 1,
kGeometry_PaintUsage = 1 << 2,
kImage_PaintUsage = 1 << 3,
kSaveLayer_PaintUsage = 1 << 4,
kDrawPaint_PaintUsage = 1 << 5,
kVertices_PaintUsage = 1 << 6,
kRespectsStroke_PaintUsage = 1 << 7,
kUnknown_PaintUsage = 0xFF,
};
// must sum to <= 32
enum BitsPerField {
kFlags_BPF = 16,
kFilter_BPF = 2,
kStyle_BPF = 2,
kCaps_BPF = 2,
kJoins_BPF = 2,
kHint_BPF = 2,
kAlign_BPF = 2,
kEncoding_BPF = 2,
};
enum {
kTextSize_NonDef = 1 << 0,
kTextScaleX_NonDef = 1 << 1,
kTextSkewX_NonDef = 1 << 2,
kStrokeWidth_NonDef = 1 << 3,
kStrokeMiter_NonDef = 1 << 4,
kColor_NonDef = 1 << 5,
kTypeface_NonDef = 1 << 6,
kPathEffect_NonDef = 1 << 7,
kShader_NonDef = 1 << 8,
kMaskFilter_NonDef = 1 << 9,
kColorFilter_NonDef = 1 << 10,
kRasterizer_NonDef = 1 << 11,
kImageFilter_NonDef = 1 << 12,
kDrawLooper_NonDef = 1 << 13,
};
enum {
kFlags_SaveLayerMask = 0xFF,
kHasBounds_SaveLayerMask = 1 << 8,
kHasPaint_SaveLayerMask = 1 << 9,
kHasBackdrop_SaveLayerMask = 1 << 10,
kDontClipToLayer_SaveLayerMask = 1 << 11,
kHasClipMask_SaveLayerMask = 1 << 12,
kHasClipMatrix_SaveLayerMask = 1 << 13,
};
enum {
kObjectDefinitionBits = 20,
kIndex_ObjectDefinitionMask = ((1 << kObjectDefinitionBits) - 1),
kUser_ObjectDefinitionMask = 0x7 << kObjectDefinitionBits,
kUndef_ObjectDefinitionMask = 1 << 23,
// (Undef:1 | User:3 | Index:20) must fit in extra:24
};
enum {
kTypeMask_ConcatMask = 0xF,
kSetMatrix_ConcatMask = 1 << 4,
};
enum {
kMode_DrawAtlasMask = 0xFF,
kHasColors_DrawAtlasMask = 1 << 8,
kHasCull_DrawAtlasMask = 1 << 9,
kHasPaint_DrawAtlasMask = 1 << 10,
};
enum {
kHasPaint_DrawImageMask = 1 << 0,
};
enum {
kConstraint_DrawImageRectMask = 1 << 0,
kHasPaint_DrawImageRectMask = 1 << 1,
kHasSrcRect_DrawImageRectMask = 1 << 2,
};
enum {
kHasPaint_DrawImageNineMask = 1 << 0,
};
enum {
// picture_index takes the first kObjectDefinitionBits bits
kHasMatrix_DrawPictureExtra = 1 << 21,
kHasPaint_DrawPictureExtra = 1 << 22,
};
enum {
kIndex_DefineFactoryExtraBits = 10,
kNameLength_DefineFactoryExtraBits = 14, // includes trailing 0
kNameLength_DefineFactoryExtraMask = (1 << kNameLength_DefineFactoryExtraBits) - 1,
};
enum {
kModeEnum_DrawPatchExtraMask = 0xFF,
kExplicitXfer_DrawPatchExtraValue = 0xFF,
kHasColors_DrawPatchExtraMask = 0x100,
kHasTexture_DrawPatchExtraMask = 0x200,
};
enum {
// if we store a zero for VCount, then read an int after the packedverb for the vcount
kVCount_DrawVerticesMask = (1 << 11) - 1,
kVMode_DrawVerticesShift = 11,
kVMode_DrawVerticesMask = 3 << kVMode_DrawVerticesShift,
kXMode_DrawVerticesShift = 13,
kXMode_DrawVerticesMask = 0xFF << kXMode_DrawVerticesShift,
kHasTex_DrawVerticesMask = 1 << 21,
kHasColors_DrawVerticesMask = 1 << 22,
kHasIndices_DrawVerticesMask = 1 << 23,
};
enum {
kTextLength_DrawTextOnPathMask = (1 << 16) - 1,
kMatrixType_DrawTextOnPathShift = 16,
kMatrixType_DrawTextOnPathMask = 0xF << kMatrixType_DrawTextOnPathShift,
};
enum {
kHasPaint_DrawImageLatticeMask = 1 << 0,
kHasFlags_DrawImageLatticeMask = 1 << 1,
kXCount_DrawImageLatticeShift = 2, // bits 2:9 are xcount or FF means 32bits follow
kYCount_DrawImageLatticeShift = 10, // bits 10:17 are ycount or FF means 32bits follow
kCount_DrawImageLatticeMask = 0xFF, // sentinel for 32bits follow,
// thus max inline count is 254
};
///////////////////////////////////////////////////////////////////////////////////////////////////
static inline bool fits_in(int value, int bits) {
return value >= 0 && value < (1 << bits);
}
static inline void ASSERT_FITS_IN(int value, int bits) {
SkASSERT(fits_in(value, bits));
}
static inline uint32_t pack_verb(SkPipeVerb verb, unsigned extra = 0) {
//SkDebugf("pack [%d] %d\n", verb, extra);
ASSERT_FITS_IN((unsigned)verb, 8);
ASSERT_FITS_IN(extra, 24);
return ((uint32_t)verb << 24) | extra;
}
static inline SkPipeVerb unpack_verb(uint32_t data) {
return (SkPipeVerb)(data >> 24);
}
static inline unsigned unpack_verb_extra(uint32_t data) {
return data & 0xFFFFFF;
}
#endif
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