public static void GetFreePathWriter(out PixelFarm.Agg.VertexSource.PathWriter p) { if (s_pathWriters.Count > 0) { p = s_pathWriters.Pop(); } else { p = new Agg.VertexSource.PathWriter(); } }
unsafe internal static void BuildGlyphOutline(NativeFontGlyph fontGlyph) { FT_Outline outline = (*(FT_Outline *)fontGlyph.nativeOutlinePtr); //outline version //------------------------------ int npoints = outline.n_points; int startContour = 0; int cpoint_index = 0; int todoContourCount = outline.n_contours; PixelFarm.Agg.VertexSource.PathWriter ps = new Agg.VertexSource.PathWriter(); fontGlyph.originalVxs = ps.Vxs; int controlPointCount = 0; while (todoContourCount > 0) { int nextContour = outline.contours[startContour] + 1; bool isFirstPoint = true; FtVec2 secondControlPoint = new FtVec2(); FtVec2 thirdControlPoint = new FtVec2(); bool justFromCurveMode = false; //FT_Vector vpoint = new FT_Vector(); for (; cpoint_index < nextContour; ++cpoint_index) { FT_Vector vpoint = outline.points[cpoint_index]; byte vtag = outline.tags[cpoint_index]; bool has_dropout = (((vtag >> 2) & 0x1) != 0); int dropoutMode = vtag >> 3; // Console.WriteLine(vpoint.ToString() + " " + vtag); if ((vtag & 0x1) != 0) { //on curve if (justFromCurveMode) { switch (controlPointCount) { case 1: { ps.Curve3(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } break; case 2: { ps.Curve4(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, thirdControlPoint.x / FT_RESIZE, thirdControlPoint.y / FT_RESIZE, vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } break; default: { throw new NotSupportedException(); } } controlPointCount = 0; justFromCurveMode = false; } else { if (isFirstPoint) { isFirstPoint = false; ps.MoveTo(vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } else { ps.LineTo(vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } if (has_dropout) { //printf("[%d] on,dropoutMode=%d: %d,y:%d \n", mm, dropoutMode, vpoint.x, vpoint.y); } else { //printf("[%d] on,x: %d,y:%d \n", mm, vpoint.x, vpoint.y); } } } else { switch (controlPointCount) { case 0: { //bit 1 set=> off curve, this is a control point //if this is a 2nd order or 3rd order control point if (((vtag >> 1) & 0x1) != 0) { //printf("[%d] bzc3rd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); thirdControlPoint = new FtVec2(vpoint); } else { //printf("[%d] bzc2nd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); secondControlPoint = new FtVec2(vpoint); } } break; case 1: { if (((vtag >> 1) & 0x1) != 0) { //printf("[%d] bzc3rd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); thirdControlPoint = new FtVec2(vpoint); } else { //we already have prev second control point //so auto calculate line to //between 2 point FtVec2 mid = GetMidPoint(secondControlPoint, vpoint); //---------- //generate curve3 ps.Curve3(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, mid.x / FT_RESIZE, mid.y / FT_RESIZE); //------------------------ controlPointCount--; //------------------------ //printf("[%d] bzc2nd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); secondControlPoint = new FtVec2(vpoint); } } break; default: { throw new NotSupportedException(); } break; } controlPointCount++; justFromCurveMode = true; } } //-------- //close figure //if in curve mode if (justFromCurveMode) { switch (controlPointCount) { case 0: break; case 1: { ps.Curve3(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, ps.LastMoveX, ps.LastMoveY); } break; case 2: { ps.Curve4(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, thirdControlPoint.x / FT_RESIZE, thirdControlPoint.y / FT_RESIZE, ps.LastMoveX, ps.LastMoveY); } break; default: { throw new NotSupportedException(); } } justFromCurveMode = false; controlPointCount = 0; } ps.CloseFigure(); //-------- startContour++; todoContourCount--; } }
unsafe internal static void BuildGlyphOutline(FontGlyph fontGlyph) { FT_Outline outline = (*(FT_Outline*)fontGlyph.glyphMatrix.outline); //outline version //------------------------------ int npoints = outline.n_points; int startContour = 0; int cpoint_index = 0; int todoContourCount = outline.n_contours; PixelFarm.Agg.VertexSource.PathWriter ps = new Agg.VertexSource.PathWriter(); fontGlyph.originalVxs = ps.Vxs; int controlPointCount = 0; while (todoContourCount > 0) { int nextContour = outline.contours[startContour] + 1; bool isFirstPoint = true; FtVec2 secondControlPoint = new FtVec2(); FtVec2 thirdControlPoint = new FtVec2(); bool justFromCurveMode = false; //FT_Vector vpoint = new FT_Vector(); for (; cpoint_index < nextContour; ++cpoint_index) { FT_Vector vpoint = outline.points[cpoint_index]; byte vtag = outline.tags[cpoint_index]; bool has_dropout = (((vtag >> 2) & 0x1) != 0); int dropoutMode = vtag >> 3; Console.WriteLine(vpoint.ToString() + " " + vtag); if ((vtag & 0x1) != 0) { //on curve if (justFromCurveMode) { switch (controlPointCount) { case 1: { ps.Curve3(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } break; case 2: { ps.Curve4(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, thirdControlPoint.x / FT_RESIZE, thirdControlPoint.y / FT_RESIZE, vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } break; default: { throw new NotSupportedException(); } } controlPointCount = 0; justFromCurveMode = false; } else { if (isFirstPoint) { isFirstPoint = false; ps.MoveTo(vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } else { ps.LineTo(vpoint.x / FT_RESIZE, vpoint.y / FT_RESIZE); } if (has_dropout) { //printf("[%d] on,dropoutMode=%d: %d,y:%d \n", mm, dropoutMode, vpoint.x, vpoint.y); } else { //printf("[%d] on,x: %d,y:%d \n", mm, vpoint.x, vpoint.y); } } } else { switch (controlPointCount) { case 0: { //bit 1 set=> off curve, this is a control point //if this is a 2nd order or 3rd order control point if (((vtag >> 1) & 0x1) != 0) { //printf("[%d] bzc3rd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); thirdControlPoint = new FtVec2(vpoint); } else { //printf("[%d] bzc2nd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); secondControlPoint = new FtVec2(vpoint); } } break; case 1: { if (((vtag >> 1) & 0x1) != 0) { //printf("[%d] bzc3rd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); thirdControlPoint = new FtVec2(vpoint); } else { //we already have prev second control point //so auto calculate line to //between 2 point FtVec2 mid = GetMidPoint(secondControlPoint, vpoint); //---------- //generate curve3 ps.Curve3(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, mid.x / FT_RESIZE, mid.y / FT_RESIZE); //------------------------ controlPointCount--; //------------------------ //printf("[%d] bzc2nd, x: %d,y:%d \n", mm, vpoint.x, vpoint.y); secondControlPoint = new FtVec2(vpoint); } } break; default: { throw new NotSupportedException(); } break; } controlPointCount++; justFromCurveMode = true; } } //-------- //close figure //if in curve mode if (justFromCurveMode) { switch (controlPointCount) { case 0: break; case 1: { ps.Curve3(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, ps.LastMoveX, ps.LastMoveY); } break; case 2: { ps.Curve4(secondControlPoint.x / FT_RESIZE, secondControlPoint.y / FT_RESIZE, thirdControlPoint.x / FT_RESIZE, thirdControlPoint.y / FT_RESIZE, ps.LastMoveX, ps.LastMoveY); } break; default: { throw new NotSupportedException(); } } justFromCurveMode = false; controlPointCount = 0; } ps.CloseFigure(); //-------- startContour++; todoContourCount--; } }