BinaryVexDrawFormat

debreuil edited this page Aug 31, 2012 · 2 revisions
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Vex Draw Binary Format - It3rate
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// this format will be parsed into runtime VexObjects when it is loaded.

Tag     Description

0x01    Header // todo

0x05    StrokeList      
            [8] *strokeNBits* bits required for a stroke index (based on max size of list)
            [5] color nBits
            [5] line width nBits
            [11] stroke count
            [
                [colNBits] fARGB color
                [lwNBits float] line width
            ]

0x06    SolidFillList
            [8] *fillNBits* bits required for a fill index (based on max size of both solidFillList and GradientFillList)
            [5] color nBits
            [11] solidFills count
            [colNBits]... fARGB colors      

0x07    GradientFillList
            [5] padding (always zero)
            [11] gradientFills count
            Gradient Fills:
                [3] 0:Linear 1:Radial 2-7:future
                [5] lineNBits
                [lineNBits float] Point0 X 
                [lineNBits float] Point0 Y 
                [lineNBits float] Point1 X 
                [lineNBits float] Point1 Y 
                [5] stopColor nBits
                [5] stopRatio nBits
                [11] stopCount
                [
                    [colNBits] fARGB color
                    [ratioNBits] ratio from 0-255
                ]           

0x09    ReplacementStrokeList // todo
0x0A    ReplacementSolidFillList // todo
0x0B    ReplacementGradientFillList // todo

0x10    SymbolDefinition:       
            [32] symbol id
            [string] name (todo)
            [RECT] bounds
            [11] shapeCount
            Shapes:
                [strokeNBits] stroke index
                [fillNBits] fill index
                [5] segDataNBits
                [11] segCount
                [
                    [2] segType (0-moveTo 1-lineTo 2-quadraticTo 3-cubicTo
                    [segDataNBits * points] (move-2pts line-2pts quadratic-4pts cubic-6pts)
                ]


0x11    TimelineDefinition
            [32] symbol id
            [string] name (todo)
            [RECT] bounds
            [11] instanceCount
            Instances:
                [32] definition id
                [1] hasValueTranslateX
                [1] hasValueTranslateY
                [1] hasValueScaleX
                [1] hasValueScaleY
                [1] hasValueRotation
                [1] hasValueShear               
                [1] hasName 

                if(any hasValue):
                    [5] valueNBits
                    [valueNBits float] for each hasValue that is true

                [string] name (todo)



****************************************

[RECT] Rectangle
            [5] nBits
            [nBits float] X
            [nBits float] Y
            [nBits float] WIDTH 
            [nBits float] HEIGHT

* int - (+-) first bit determines positive or negative
* float - int (+-) divided by 32, used to convert stored ints to floats
* point - [float,float] x,y pair
* fARGB is FlippedA,R,G,B format (A is flipped so no alpha has fewer bits in normal cases)