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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkGPipePriv_DEFINED
#define SkGPipePriv_DEFINED
#include "SkTypes.h"
#define UNIMPLEMENTED
// these must be contiguous, 0...N-1
enum PaintFlats {
kColorFilter_PaintFlat,
kDrawLooper_PaintFlat,
kMaskFilter_PaintFlat,
kPathEffect_PaintFlat,
kRasterizer_PaintFlat,
kShader_PaintFlat,
kXfermode_PaintFlat,
kLast_PaintFlat = kXfermode_PaintFlat
};
#define kCount_PaintFlats (kLast_PaintFlat + 1)
enum DrawOps {
kSkip_DrawOp, // skip an addition N bytes (N == data)
// these match Canvas apis
kClipPath_DrawOp,
kClipRegion_DrawOp,
kClipRect_DrawOp,
kConcat_DrawOp,
kDrawBitmap_DrawOp,
kDrawBitmapMatrix_DrawOp,
kDrawBitmapRect_DrawOp,
kDrawClear_DrawOp,
kDrawData_DrawOp,
kDrawPaint_DrawOp,
kDrawPath_DrawOp,
kDrawPicture_DrawOp,
kDrawPoints_DrawOp,
kDrawPosText_DrawOp,
kDrawPosTextH_DrawOp,
kDrawRect_DrawOp,
kDrawSprite_DrawOp,
kDrawText_DrawOp,
kDrawTextOnPath_DrawOp,
kDrawVertices_DrawOp,
kRestore_DrawOp,
kRotate_DrawOp,
kSave_DrawOp,
kSaveLayer_DrawOp,
kScale_DrawOp,
kSetMatrix_DrawOp,
kSkew_DrawOp,
kTranslate_DrawOp,
kPaintOp_DrawOp,
kDef_Typeface_DrawOp,
kDef_Flattenable_DrawOp,
// these are signals to playback, not drawing verbs
kDone_DrawOp,
};
/**
* DrawOp packs into a 32bit int as follows
*
* DrawOp:8 - Flags:4 - Data:20
*
* Flags and Data are called out separately, so we can reuse Data between
* different Ops that might have different Flags. e.g. Data might be a Paint
* index for both drawRect (no flags) and saveLayer (does have flags).
*
* All Ops that take a SkPaint use their Data field to store the index to
* the paint (previously defined with kPaintOp_DrawOp).
*/
#define DRAWOPS_OP_BITS 8
#define DRAWOPS_FLAG_BITS 4
#define DRAWOPS_DATA_BITS 20
#define DRAWOPS_OP_MASK ((1 << DRAWOPS_OP_BITS) - 1)
#define DRAWOPS_FLAG_MASK ((1 << DRAWOPS_FLAG_BITS) - 1)
#define DRAWOPS_DATA_MASK ((1 << DRAWOPS_DATA_BITS) - 1)
static unsigned DrawOp_unpackOp(uint32_t op32) {
return (op32 >> (DRAWOPS_FLAG_BITS + DRAWOPS_DATA_BITS));
}
static unsigned DrawOp_unpackFlags(uint32_t op32) {
return (op32 >> DRAWOPS_DATA_BITS) & DRAWOPS_FLAG_MASK;
}
static unsigned DrawOp_unpackData(uint32_t op32) {
return op32 & DRAWOPS_DATA_MASK;
}
static uint32_t DrawOp_packOpFlagData(DrawOps op, unsigned flags, unsigned data) {
SkASSERT(0 == (op & ~DRAWOPS_OP_MASK));
SkASSERT(0 == (flags & ~DRAWOPS_FLAG_MASK));
SkASSERT(0 == (data & ~DRAWOPS_DATA_MASK));
return (op << (DRAWOPS_FLAG_BITS + DRAWOPS_DATA_BITS)) |
(flags << DRAWOPS_DATA_BITS) |
data;
}
/** DrawOp specific flag bits
*/
enum {
kSaveLayer_HasBounds_DrawOpFlag = 1 << 0,
kSaveLayer_HasPaint_DrawOpFlag = 1 << 1,
};
enum {
kClear_HasColor_DrawOpFlag = 1 << 0
};
enum {
kDrawTextOnPath_HasMatrix_DrawOpFlag = 1 << 0
};
enum {
kDrawVertices_HasTexs_DrawOpFlag = 1 << 0,
kDrawVertices_HasColors_DrawOpFlag = 1 << 1,
kDrawVertices_HasIndices_DrawOpFlag = 1 << 2,
};
///////////////////////////////////////////////////////////////////////////////
enum PaintOps {
kReset_PaintOp, // no arg
kFlags_PaintOp, // arg inline
kColor_PaintOp, // arg 32
kStyle_PaintOp, // arg inline
kJoin_PaintOp, // arg inline
kCap_PaintOp, // arg inline
kWidth_PaintOp, // arg scalar
kMiter_PaintOp,// arg scalar
kEncoding_PaintOp, // arg inline - text
kHinting_PaintOp, // arg inline - text
kAlign_PaintOp, // arg inline - text
kTextSize_PaintOp, // arg scalar - text
kTextScaleX_PaintOp,// arg scalar - text
kTextSkewX_PaintOp, // arg scalar - text
kTypeface_PaintOp, // arg inline (index) - text
kFlatIndex_PaintOp, // flags=paintflat, data=index
};
#define PAINTOPS_OP_BITS 8
#define PAINTOPS_FLAG_BITS 4
#define PAINTOPS_DATA_BITS 20
#define PAINTOPS_OP_MASK ((1 << PAINTOPS_OP_BITS) - 1)
#define PAINTOPS_FLAG_MASK ((1 << PAINTOPS_FLAG_BITS) - 1)
#define PAINTOPS_DATA_MASK ((1 << PAINTOPS_DATA_BITS) - 1)
static unsigned PaintOp_unpackOp(uint32_t op32) {
return (op32 >> (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS));
}
static unsigned PaintOp_unpackFlags(uint32_t op32) {
return (op32 >> PAINTOPS_DATA_BITS) & PAINTOPS_FLAG_MASK;
}
static unsigned PaintOp_unpackData(uint32_t op32) {
return op32 & PAINTOPS_DATA_MASK;
}
static uint32_t PaintOp_packOp(PaintOps op) {
SkASSERT(0 == (op & ~PAINTOPS_OP_MASK));
return op << (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS);
}
static uint32_t PaintOp_packOpData(PaintOps op, unsigned data) {
SkASSERT(0 == (op & ~PAINTOPS_OP_MASK));
SkASSERT(0 == (data & ~PAINTOPS_DATA_MASK));
return (op << (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS)) | data;
}
static uint32_t PaintOp_packOpFlagData(PaintOps op, unsigned flags, unsigned data) {
SkASSERT(0 == (op & ~PAINTOPS_OP_MASK));
SkASSERT(0 == (flags & ~PAINTOPS_FLAG_MASK));
SkASSERT(0 == (data & ~PAINTOPS_DATA_MASK));
return (op << (PAINTOPS_FLAG_BITS + PAINTOPS_DATA_BITS)) |
(flags << PAINTOPS_DATA_BITS) |
data;
}
#endif
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