Work on lineStyleSoftEdge for hardware polygons

Author: Hugh Sanderson

project/include/Graphics.h

@@ -638,6 +638,7 @@ struct GraphicsJob
    int             mDataCount;
    bool            mIsTileJob;
    bool            mIsPointJob;
+   bool            mPolyAA;
    unsigned char   mTileMode;
    unsigned char   mBlendMode;
 };
@@ -691,6 +692,7 @@ class Graphics : public Object
    void endFill();
    void beginBitmapFill(Surface *bitmapData, const Matrix &inMatrix = Matrix(),
                         bool inRepeat = true, bool inSmooth = false);
+   void lineStyleSoftEdge();
    void lineStyle(double thickness, unsigned int color = 0, double alpha = 1.0,
                   bool pixelHinting = false, StrokeScaleMode scaleMode = ssmNormal,
                   StrokeCaps caps = scRound,

project/include/Hardware.h

@@ -30,27 +30,28 @@ enum PrimType { ptTriangleFan, ptTriangleStrip, ptTriangles, ptLineStrip, ptPoin
 
 enum
 {
-   DRAW_HAS_COLOUR      = 0x00000001,
-   DRAW_HAS_NORMAL      = 0x00000002,
-   DRAW_HAS_PERSPECTIVE = 0x00000004,
-   DRAW_RADIAL          = 0x00000008,
-
-   DRAW_HAS_TEX         = 0x00000010,
-   DRAW_BMP_REPEAT      = 0x00000020,
-   DRAW_BMP_SMOOTH      = 0x00000040,
+   DRAW_HAS_COLOUR      = 0x0001,
+   DRAW_HAS_NORMAL      = 0x0002,
+   DRAW_HAS_PERSPECTIVE = 0x0004,
+   DRAW_RADIAL          = 0x0008,
+
+   DRAW_HAS_TEX         = 0x0010,
+   DRAW_BMP_REPEAT      = 0x0020,
+   DRAW_BMP_SMOOTH      = 0x0040,
 
-   DRAW_TILE_MOUSE      = 0x00000080,
+   DRAW_TILE_MOUSE      = 0x0080,
+   DRAW_EDGE_DIST       = 0x0100,
 };
 
 
 
 struct DrawElement
 {
-   uint8        mFlags;
+   unsigned short mFlags;
+   short        mRadialPos;
    uint8        mPrimType;
    uint8        mBlendMode;
    uint8        mScaleMode;
-   short        mRadialPos;
 
    uint8        mStride;
    int          mCount;

project/include/HardwareImpl.h

@@ -21,8 +21,9 @@ enum
    PROG_4D_INPUT      =     0x0100,
    PROG_PREM_ALPHA    =     0x0200,
    PROG_COMP_ALPHA    =     0x0400,
+   PROG_EDGE_DIST     =     0x0800,
 
-   PROG_COUNT =             0x0800,
+   PROG_COUNT =             0x1000,
 };
 
 inline unsigned int getProgId( const DrawElement &element, const ColorTransform *ctrans)
@@ -46,6 +47,9 @@ inline unsigned int getProgId( const DrawElement &element, const ColorTransform
    if (element.mFlags & DRAW_HAS_NORMAL)
       progId |= PROG_NORMAL_DATA;
 
+   if (element.mFlags & DRAW_EDGE_DIST)
+      progId |= PROG_EDGE_DIST;
+
    if (element.mFlags & DRAW_RADIAL)
    {
       progId |= PROG_RADIAL;

project/src/common/ExternalInterface.cpp

@@ -2956,6 +2956,16 @@ void nme_gfx_end_fill(value inGfx)
 }
 DEFINE_PRIME1v(nme_gfx_end_fill);
 
+void nme_gfx_line_style_soft_edge(value argGfx)
+{
+   Graphics *gfx;
+   if (AbstractToObject(argGfx,gfx))
+   {
+      CHECK_ACCESS("nme_gfx_line_style_soft_edge");
+      gfx->lineStyleSoftEdge();
+   }
+}
+DEFINE_PRIME1v(nme_gfx_line_style_soft_edge);
 
 void nme_gfx_line_style(value argGfx, value argThickness, int argColour, double argAlpha,
                         bool argPixelHinting, int argScaleMode,

project/src/common/Graphics.cpp

@@ -384,13 +384,21 @@ void Graphics::beginTiles(Surface *bitmapData,bool inSmooth,int inBlendMode, int
    OnChanged();
 }
 
+void Graphics::lineStyleSoftEdge()
+{
+   lineStyle(-1);
+   Flush();
+   mFillJob.mPolyAA = true;
+}
+
 void Graphics::lineStyle(double thickness, unsigned int color, double alpha,
                   bool pixelHinting, StrokeScaleMode scaleMode,
                   StrokeCaps caps,
                   StrokeJoints joints, double miterLimit)
 {
    Flush(true,false,true);
    endTiles();
+   mFillJob.mPolyAA = false;
    if (mLineJob.mStroke)
    {
       mLineJob.mStroke->DecRef();