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https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-04-29 02:43:41 +02:00
804 lines
17 KiB
ObjectPascal
804 lines
17 KiB
ObjectPascal
//
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// AggPas 2.4 RM3 Demo application
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// Note: Press F1 key on run to see more info about this demo
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//
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// Paths: src;src\ctrl;src\svg;src\util;src\platform\win;expat-wrap
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//
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program
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aa_test ;
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uses
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Math ,SysUtils ,
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agg_basics ,
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agg_platform_support ,
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agg_color ,
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agg_pixfmt ,
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agg_pixfmt_rgb ,
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agg_ctrl ,
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agg_slider_ctrl ,
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agg_cbox_ctrl ,
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agg_renderer_base ,
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agg_renderer_scanline ,
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agg_rasterizer_scanline_aa ,
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agg_scanline ,
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agg_scanline_u ,
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agg_render_scanlines ,
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agg_gamma_lut ,
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agg_gamma_functions ,
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agg_vertex_source ,
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agg_conv_stroke ,
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agg_conv_dash ,
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agg_math_stroke ,
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agg_trans_affine ,
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agg_span_gradient ,
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agg_span_interpolator_linear ,
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agg_span_gouraud_rgba ,
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agg_span_allocator ,
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agg_array ,
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agg_ellipse ;
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{$I agg_mode.inc }
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const
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flip_y = false;
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type
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simple_vertex_source = object(vertex_source )
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m_num_vertices ,
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m_count : unsigned;
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m_x ,
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m_y : array[0..7 ] of double;
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m_cmd : array[0..7 ] of unsigned;
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constructor Construct; overload;
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constructor Construct(x1 ,y1 ,x2 ,y2 : double ); overload;
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constructor Construct(x1 ,y1 ,x2 ,y2 ,x3 ,y3 : double ); overload;
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procedure init(x1 ,y1 ,x2 ,y2 : double ); overload;
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procedure init(x1 ,y1 ,x2 ,y2 ,x3 ,y3 : double ); overload;
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procedure rewind(path_id : unsigned ); virtual;
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function vertex(x ,y : double_ptr ) : unsigned; virtual;
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end;
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dashed_line = object
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m_ras : rasterizer_scanline_aa_ptr;
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m_ren : renderer_scanline_aa_solid_ptr;
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m_sl : scanline_ptr;
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m_src : simple_vertex_source;
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m_dash : conv_dash;
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m_stroke ,
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m_dash_stroke : conv_stroke;
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constructor Construct(ras : rasterizer_scanline_aa_ptr; ren : renderer_scanline_aa_solid_ptr; sl : scanline_ptr );
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destructor Destruct;
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procedure draw(x1 ,y1 ,x2 ,y2 ,line_width ,dash_length : double );
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end;
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the_application = object(platform_support )
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m_gamma : gamma_lut;
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m_slider_gamma : slider_ctrl;
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constructor Construct(format_ : pix_format_e; flip_y_ : boolean );
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destructor Destruct;
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procedure on_draw; virtual;
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procedure on_mouse_move (x ,y : int; flags : unsigned ); virtual;
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procedure on_mouse_button_down(x ,y : int; flags : unsigned ); virtual;
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procedure on_mouse_button_up (x ,y : int; flags : unsigned ); virtual;
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procedure on_key(x ,y : int; key ,flags : unsigned ); virtual;
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end;
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{ min }
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function min(a ,b : int ) : int;
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begin
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if a < b then
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result:=a
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else
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result:=b;
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end;
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{ min_d }
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function min_d(a ,b : double ) : double;
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begin
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if a < b then
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result:=a
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else
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result:=b;
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end;
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{ frand }
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function frand(x : double ) : double;
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begin
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result:=
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((((Random($7fff ) shl 15 ) or Random($7fff ) ) and $3FFFFFFF) mod 1000000) * x / 1000000.0;
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end;
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{ calc_linear_gradient_transform }
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// Calculate the affine transformation matrix for the linear gradient
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// from (x1, y1) to (x2, y2). gradient_d2 is the "base" to scale the
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// gradient. Here d1 must be 0.0, and d2 must equal gradient_d2.
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procedure calc_linear_gradient_transform(
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x1 ,y1 ,x2 ,y2 : double;
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mtx : trans_affine_ptr;
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gradient_d2 : double = 100.0 );
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var
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dx ,dy : double;
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tas : trans_affine_scaling;
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tar : trans_affine_rotation;
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tat : trans_affine_translation;
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begin
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dx:=x2 - x1;
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dy:=y2 - y1;
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tas.Construct(Sqrt(dx * dx + dy * dy ) / gradient_d2 );
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tar.Construct(ArcTan2(dy ,dx ) );
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tat.Construct(x1 + 0.5 ,y1 + 0.5 );
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mtx.reset;
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mtx.multiply(@tas );
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mtx.multiply(@tar );
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mtx.multiply(@tat );
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mtx.invert;
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end;
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{ fill_color_array }
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// A simple function to form the gradient color array
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// consisting of 3 colors, "begin", "middle", "end"
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procedure fill_color_array(array_ : pod_auto_array_ptr; begin_ ,end_ : aggclr_ptr );
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var
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i : unsigned;
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begin
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for i:=0 to 255 do
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aggclr_ptr(array_.array_operator(i ) )^:=begin_.gradient(end_ ,i / 255.0 );
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end;
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{ CONSTRUCT }
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constructor simple_vertex_source.Construct;
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begin
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m_num_vertices:=0;
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m_count :=0;
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m_cmd[0 ]:=path_cmd_stop;
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end;
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{ CONSTRUCT }
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constructor simple_vertex_source.Construct(x1 ,y1 ,x2 ,y2 : double );
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begin
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init(x1 ,y1 ,x2 ,y2 );
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end;
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{ CONSTRUCT }
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constructor simple_vertex_source.Construct(x1 ,y1 ,x2 ,y2 ,x3 ,y3 : double );
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begin
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init(x1 ,y1 ,x2 ,y2 ,x3 ,y3 );
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end;
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{ INIT }
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procedure simple_vertex_source.init(x1 ,y1 ,x2 ,y2 : double );
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begin
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m_num_vertices:=2;
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m_count :=0;
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m_x[0 ]:=x1;
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m_y[0 ]:=y1;
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m_x[1 ]:=x2;
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m_y[1 ]:=y2;
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m_cmd[0 ]:=path_cmd_move_to;
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m_cmd[1 ]:=path_cmd_line_to;
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m_cmd[2 ]:=path_cmd_stop;
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end;
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{ INIT }
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procedure simple_vertex_source.init(x1 ,y1 ,x2 ,y2 ,x3 ,y3 : double );
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begin
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m_num_vertices:=3;
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m_count :=0;
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m_x[0 ]:=x1;
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m_y[0 ]:=y1;
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m_x[1 ]:=x2;
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m_y[1 ]:=y2;
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m_x[2 ]:=x3;
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m_y[2 ]:=y3;
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m_x[3 ]:=0.0;
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m_y[3 ]:=0.0;
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m_x[4 ]:=0.0;
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m_y[4 ]:=0.0;
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m_cmd[0 ]:=path_cmd_move_to;
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m_cmd[1 ]:=path_cmd_line_to;
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m_cmd[2 ]:=path_cmd_line_to;
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m_cmd[3 ]:=path_cmd_end_poly or path_flags_close;
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m_cmd[4 ]:=path_cmd_stop;
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end;
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{ REWIND }
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procedure simple_vertex_source.rewind;
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begin
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m_count:=0;
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end;
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{ VERTEX }
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function simple_vertex_source.vertex;
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begin
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x^:=m_x[m_count ];
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y^:=m_y[m_count ];
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result:=m_cmd[m_count ];
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inc(m_count );
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end;
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{ CONSTRUCT }
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constructor dashed_line.Construct;
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begin
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m_ras:=ras;
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m_ren:=ren;
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m_sl :=sl;
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m_src.Construct;
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m_dash.Construct (@m_src );
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m_stroke.Construct (@m_src );
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m_dash_stroke.Construct(@m_dash );
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end;
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{ DESTRUCT }
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destructor dashed_line.Destruct;
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begin
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m_dash.Destruct;
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m_stroke.Destruct;
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m_dash_stroke.Destruct;
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end;
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{ DRAW }
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procedure dashed_line.draw;
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begin
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m_src.init(x1 + 0.5 ,y1 + 0.5 ,x2 + 0.5 ,y2 + 0.5 );
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m_ras.reset;
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if dash_length > 0.0 then
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begin
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m_dash.remove_all_dashes;
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m_dash.add_dash(dash_length ,dash_length );
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m_dash_stroke.width_ (line_width );
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m_dash_stroke.line_cap_(round_cap );
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m_ras.add_path(@m_dash_stroke );
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end
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else
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begin
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m_stroke.width_ (line_width );
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m_stroke.line_cap_(round_cap );
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m_ras.add_path(@m_stroke );
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end;
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render_scanlines(m_ras ,m_sl ,m_ren );
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end;
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{ CONSTRUCT }
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constructor the_application.Construct;
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begin
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inherited Construct(format_ ,flip_y_ );
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m_gamma.Construct(1.0 );
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m_slider_gamma.Construct(3 ,3 ,480 - 3 ,8 ,not flip_y_ );
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add_ctrl(@m_slider_gamma );
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m_slider_gamma.range_(0.1 ,3.0 );
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m_slider_gamma.value_(1.6 );
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m_slider_gamma.label_('Gamma=%4.3f' );
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end;
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{ DESTRUCT }
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destructor the_application.Destruct;
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begin
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inherited Destruct;
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m_gamma.Destruct;
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m_slider_gamma.Destruct;
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end;
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{ ON_DRAW }
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procedure the_application.on_draw;
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var
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pixf : pixel_formats;
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ren_base : renderer_base;
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ren_sl : renderer_scanline_aa_solid;
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ras : rasterizer_scanline_aa;
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sl : scanline_u8;
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rgba ,
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rgbb : aggclr;
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gm_pw : gamma_power;
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i : int;
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dash : dashed_line;
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cx ,cy ,n ,x1 ,y1 ,x2 ,y2 : double;
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gradient_func : gradient_x; // The gradient function
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gradient_mtx : trans_affine; // Affine transformer
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span_interpolator : span_interpolator_linear; // Span interpolator
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span_allocator_ : span_allocator; // Span Allocator
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gradient_colors : pod_auto_array; // The gradient colors
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span_gradient_ : span_gradient;
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ren_gradient : renderer_scanline_aa;
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dash_gradient : dashed_line;
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ell : ellipse;
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begin
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// Initialize structures
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pixfmt_bgr24_gamma(pixf ,rbuf_window ,@m_gamma );
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ren_base.Construct(@pixf );
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ren_sl.Construct (@ren_base );
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ras.Construct;
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sl.Construct;
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rgba.ConstrInt(0 ,0 ,0 );
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ren_base.clear(@rgba );
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// gamma correction
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m_gamma.gamma_(m_slider_gamma._value );
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// radial line test
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dash.Construct(@ras ,@ren_sl ,@sl );
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cx:=_width / 2.0;
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cy:=_height / 2.0;
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rgba.ConstrDbl(1.0 ,1.0 ,1.0 ,0.2 );
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ren_sl.color_ (@rgba );
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for i:=180 downto 1 do
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begin
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n:=2.0 * pi * i / 180.0;
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if i < 90 then
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dash.draw(
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cx + min_d(cx ,cy ) * Sin(n ) ,
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cy + min_d(cx ,cy ) * Cos(n ) ,
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cx ,cy ,1.0 ,i )
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else
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dash.draw(
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cx + min_d(cx ,cy ) * Sin(n ) ,
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cy + min_d(cx ,cy ) * Cos(n ) ,
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cx ,cy ,1.0 ,0.0 );
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end;
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// Initialize gradients
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gradient_func.Construct;
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gradient_mtx.Construct;
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span_interpolator.Construct(@gradient_mtx );
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span_allocator_.Construct;
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gradient_colors.Construct(256 ,sizeof(aggclr ) );
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span_gradient_.Construct(
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@span_allocator_ ,
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@span_interpolator ,
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@gradient_func ,
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@gradient_colors ,
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0 ,100 );
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ren_gradient.Construct (@ren_base ,@span_gradient_ );
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dash_gradient.Construct(@ras ,@ren_gradient ,@sl );
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ell.Construct;
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// Top patterns
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for i:=1 to 20 do
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begin
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rgba.ConstrDbl(1 ,1 ,1 );
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ren_sl.color_ (@rgba );
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// integral point sizes 1..20
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ell.init(20 + i * (i + 1 ) + 0.5 ,20.5 ,i / 2.0 ,i / 2.0 ,8 + i );
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ras.reset;
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ras.add_path(@ell );
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render_scanlines(@ras ,@sl ,@ren_sl );
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// fractional point sizes 0..2
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ell.init(18 + i * 4 + 0.5 ,33 + 0.5 ,i / 20.0 ,i / 20.0 ,8 );
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ras.reset;
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ras.add_path(@ell );
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render_scanlines(@ras ,@sl ,@ren_sl );
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// fractional point positioning
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ell.init(
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18 + i * 4 + (i - 1 ) / 10.0 + 0.5 ,
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27 + (i - 1 ) / 10.0 + 0.5 ,
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0.5 ,0.5 ,8 );
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ras.reset;
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ras.add_path(@ell );
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render_scanlines(@ras ,@sl ,@ren_sl );
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// integral line widths 1..20
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rgba.ConstrDbl (1 ,1 ,1 );
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rgbb.ConstrDbl (i mod 2 ,(i mod 3 ) * 0.5 ,(i mod 5 ) * 0.25 );
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fill_color_array(@gradient_colors ,@rgba ,@rgbb );
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x1:=20 + i* (i + 1 );
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y1:=40.5;
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x2:=20 + i * (i + 1 ) + (i - 1 ) * 4;
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y2:=100.5;
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calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
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dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,i ,0 );
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rgba.ConstrDbl (1 ,0 ,0 );
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rgbb.ConstrDbl (0 ,0 ,1 );
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fill_color_array(@gradient_colors ,@rgba ,@rgbb );
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// fractional line lengths H (red/blue)
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x1:=17.5 + i * 4;
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y1:=107;
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x2:=17.5 + i * 4 + i / 6.66666667;
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y2:=107;
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calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
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dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,1.0 ,0 );
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// fractional line lengths V (red/blue)
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x1:=18 + i * 4;
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y1:=112.5;
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x2:=18 + i * 4;
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y2:=112.5 + i / 6.66666667;
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calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
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dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,1.0 ,0 );
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// fractional line positioning (red)
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rgba.ConstrDbl (1 ,0 ,0 );
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rgbb.ConstrDbl (1 ,1 ,1 );
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fill_color_array(@gradient_colors ,@rgba ,@rgbb );
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x1:=21.5;
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y1:=120 + (i - 1 ) * 3.1;
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x2:=52.5;
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y2:=120 + (i - 1 ) * 3.1;
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calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
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dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,1.0 ,0 );
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// fractional line width 2..0 (green)
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rgba.ConstrDbl (0 ,1 ,0 );
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rgbb.ConstrDbl (1 ,1 ,1 );
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fill_color_array(@gradient_colors ,@rgba ,@rgbb );
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x1:=52.5;
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y1:=118 + i * 3;
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x2:=83.5;
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y2:=118 + i * 3;
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calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
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dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,2.0 - (i - 1 ) / 10.0 ,0 );
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// stippled fractional width 2..0 (blue)
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rgba.ConstrDbl (0 ,0 ,1 );
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rgbb.ConstrDbl (1 ,1 ,1 );
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fill_color_array(@gradient_colors ,@rgba ,@rgbb );
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x1:=83.5;
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y1:=119 + i * 3;
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x2:=114.5;
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y2:=119 + i * 3;
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calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
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dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,2.0 - (i - 1 ) / 10.0, 3.0 );
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// integral line width, horz aligned (mipmap test)
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rgba.ConstrDbl(1 ,1 ,1 );
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ren_sl.color_ (@rgba );
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|
|
|
if i <= 10 then
|
|
dash.draw(
|
|
125.5 ,119.5 + (i + 2 ) * (i / 2.0 ) ,
|
|
135.5 ,119.5 + (i + 2 ) * (i / 2.0 ) ,i ,0.0 );
|
|
|
|
|
|
// fractional line width 0..2, 1 px H
|
|
//-----------------
|
|
dash.draw(17.5 + i * 4 ,192 ,18.5 + i * 4 ,192 ,i / 10.0 ,0 );
|
|
|
|
// fractional line positioning, 1 px H
|
|
//-----------------
|
|
dash.draw(
|
|
17.5 + i * 4 + (i - 1 ) / 10.0 ,186 ,
|
|
18.5 + i * 4 + (i - 1 ) / 10.0 ,186 ,
|
|
1.0 ,0 );
|
|
|
|
end;
|
|
|
|
|
|
// Triangles
|
|
for i:=1 to 13 do
|
|
begin
|
|
rgba.ConstrDbl (1 ,1 ,1 );
|
|
rgbb.ConstrDbl (i mod 2 ,(i mod 3 ) * 0.5 ,(i mod 5 ) * 0.25 );
|
|
fill_color_array(@gradient_colors ,@rgba ,@rgbb );
|
|
|
|
calc_linear_gradient_transform(
|
|
_width - 150 ,
|
|
_height - 20 - i * (i + 1.5 ) ,
|
|
_width - 20,
|
|
_height - 20 - i * (i + 1 ) ,
|
|
@gradient_mtx );
|
|
|
|
ras.reset;
|
|
ras.move_to_d(_width - 150 ,_height - 20 - i * (i + 1.5 ) );
|
|
ras.line_to_d(_width - 20 ,_height - 20 - i * (i + 1 ) );
|
|
ras.line_to_d(_width - 20 ,_height - 20 - i * (i + 2 ) );
|
|
|
|
render_scanlines(@ras ,@sl ,@ren_gradient );
|
|
|
|
end;
|
|
|
|
// Reset AA Gamma and render the controls
|
|
gm_pw.Construct(1.0 );
|
|
ras.gamma (@gm_pw );
|
|
|
|
render_ctrl(@ras ,@sl ,@ren_sl ,@m_slider_gamma );
|
|
|
|
// Free AGG resources
|
|
ras.Destruct;
|
|
sl.Destruct;
|
|
|
|
dash.Destruct;
|
|
|
|
span_allocator_.Destruct;
|
|
gradient_colors.Destruct;
|
|
dash_gradient.Destruct;
|
|
|
|
end;
|
|
|
|
{ ON_MOUSE_MOVE }
|
|
procedure the_application.on_mouse_move;
|
|
begin
|
|
end;
|
|
|
|
{ ON_MOUSE_BUTTON_DOWN }
|
|
procedure the_application.on_mouse_button_down;
|
|
var
|
|
pixf : pixel_formats;
|
|
|
|
ren_base : renderer_base;
|
|
ren_sl : renderer_scanline_aa_solid;
|
|
|
|
ras : rasterizer_scanline_aa;
|
|
sl : scanline_u8;
|
|
|
|
rgba ,
|
|
rgbb ,
|
|
rgbc : aggclr;
|
|
|
|
i : int;
|
|
|
|
w ,h ,t1 ,t2 ,t3 ,r ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 : double;
|
|
|
|
ell : ellipse;
|
|
buf : array[0..255 ] of char;
|
|
|
|
gradient_func : gradient_x; // The gradient function
|
|
gradient_mtx : trans_affine; // Affine transformer
|
|
span_interpolator : span_interpolator_linear; // Span interpolator
|
|
span_allocator_ : span_allocator; // Span Allocator
|
|
gradient_colors : pod_auto_array; // The gradient colors
|
|
span_gradient_ : span_gradient;
|
|
ren_gradient : renderer_scanline_aa;
|
|
dash_gradient : dashed_line;
|
|
|
|
span_gouraud : span_gouraud_rgba;
|
|
ren_gouraud : renderer_scanline_aa;
|
|
|
|
begin
|
|
RandSeed:=123;
|
|
|
|
// Initialize structures
|
|
pixfmt_bgr24_gamma(pixf ,rbuf_window ,@m_gamma );
|
|
|
|
ren_base.Construct(@pixf );
|
|
ren_sl.Construct (@ren_base );
|
|
|
|
ras.Construct;
|
|
sl.Construct;
|
|
|
|
rgba.ConstrInt(0 ,0 ,0 );
|
|
ren_base.clear(@rgba );
|
|
|
|
w:=_width;
|
|
h:=_height;
|
|
|
|
ell.Construct;
|
|
|
|
// Points
|
|
start_timer;
|
|
|
|
for i:=0 to 20000 - 1 do
|
|
begin
|
|
r:=frand(20.0 ) + 1.0;
|
|
|
|
ell.init(frand(w ) ,frand(h ) ,r / 2 ,r / 2 ,trunc(r ) + 10 );
|
|
|
|
ras.reset;
|
|
ras.add_path(@ell );
|
|
|
|
render_scanlines(@ras ,@sl ,@ren_sl );
|
|
|
|
rgba.ConstrDbl(frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) ,0.5 + frand(0.5 ) );
|
|
ren_sl.color_ (@rgba );
|
|
|
|
end;
|
|
|
|
t1:=elapsed_time;
|
|
|
|
// Strokes
|
|
gradient_func.Construct;
|
|
gradient_mtx.Construct;
|
|
span_interpolator.Construct(@gradient_mtx );
|
|
span_allocator_.Construct;
|
|
gradient_colors.Construct(256 ,sizeof(aggclr ) );
|
|
span_gradient_.Construct(
|
|
@span_allocator_ ,
|
|
@span_interpolator ,
|
|
@gradient_func ,
|
|
@gradient_colors ,
|
|
0 ,100 );
|
|
|
|
ren_gradient.Construct (@ren_base ,@span_gradient_ );
|
|
dash_gradient.Construct(@ras ,@ren_gradient ,@sl );
|
|
|
|
start_timer;
|
|
|
|
for i:=0 to 2000 - 1 do
|
|
begin
|
|
x1:=frand(w );
|
|
y1:=frand(h );
|
|
x2:=x1 + frand(w * 0.5 ) - w * 0.25;
|
|
y2:=y1 + frand(h * 0.5 ) - h * 0.25;
|
|
|
|
rgba.ConstrDbl (frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) ,0.5 + frand(0.5 ) );
|
|
rgbb.ConstrDbl (frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) );
|
|
fill_color_array(@gradient_colors ,@rgba ,@rgbb );
|
|
|
|
calc_linear_gradient_transform(x1 ,y1 ,x2 ,y2 ,@gradient_mtx );
|
|
dash_gradient.draw (x1 ,y1 ,x2 ,y2 ,10.0 ,0 );
|
|
|
|
end;
|
|
|
|
t2:=elapsed_time;
|
|
|
|
// Gouraud triangles
|
|
span_gouraud.Construct(@span_allocator_ );
|
|
ren_gouraud.Construct (@ren_base ,@span_gouraud );
|
|
|
|
start_timer;
|
|
|
|
for i:=0 to 2000 - 1 do
|
|
begin
|
|
x1:=frand(w );
|
|
y1:=frand(h );
|
|
x2:=x1 + frand(w * 0.4 ) - w * 0.2;
|
|
y2:=y1 + frand(h * 0.4 ) - h * 0.2;
|
|
x3:=x1 + frand(w * 0.4 ) - w * 0.2;
|
|
y3:=y1 + frand(h * 0.4 ) - h * 0.2;
|
|
|
|
rgba.ConstrDbl (frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) ,0.5 + frand(0.5 ) );
|
|
rgbb.ConstrDbl (frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) );
|
|
rgbc.ConstrDbl (frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) ,frand(1.0 ) );
|
|
span_gouraud.colors_ (@rgba ,@rgbb ,@rgbc );
|
|
span_gouraud.triangle(x1 ,y1 ,x2 ,y2 ,x3 ,y3 ,0.0 );
|
|
|
|
ras.add_path(@span_gouraud );
|
|
|
|
render_scanlines(@ras ,@sl ,@ren_gouraud );
|
|
|
|
end;
|
|
|
|
t3:=elapsed_time;
|
|
|
|
// Test results & Update
|
|
sprintf (@buf[0 ] ,'Points=%.2fK/sec, '#0 ,20000.0 / t1 );
|
|
sprintf (@buf[StrLen(@buf[0 ] ) ] ,'Lines=%.2fK/sec, '#0 ,2000.0 / t2 );
|
|
sprintf (@buf[StrLen(@buf[0 ] ) ] ,'Triangles=%.2fK/sec'#0 ,2000.0 / t3 );
|
|
message_(@buf[0 ] );
|
|
|
|
update_window;
|
|
|
|
// Free AGG resources
|
|
ras.Destruct;
|
|
sl.Destruct;
|
|
|
|
span_allocator_.Destruct;
|
|
gradient_colors.Destruct;
|
|
dash_gradient.Destruct;
|
|
|
|
end;
|
|
|
|
{ ON_MOUSE_BUTTON_UP }
|
|
procedure the_application.on_mouse_button_up;
|
|
begin
|
|
end;
|
|
|
|
{ ON_KEY }
|
|
procedure the_application.on_key;
|
|
begin
|
|
if key = key_f1 then
|
|
message_(
|
|
'A test of Anti-Aliasing the same as in'#13 +
|
|
'http://homepage.mac.com/arekkusu/bugs/invariance'#13 +
|
|
'The performance of AGG on a typical P-IV 2GHz is:'#13 +
|
|
'Points: 37.46K/sec, Lines: 5.04K/sec, Triangles: 7.43K/sec'#13#13 +
|
|
'How to play with:'#13#13 +
|
|
'Click any mouse button to run the performance test.'#13+
|
|
'Then, after you''ll see the triangles, resize the window'#13 +
|
|
'to return to the original rendering.' +
|
|
#13#13'Note: F2 key saves current "screenshot" file in this demo''s directory. ' );
|
|
|
|
end;
|
|
|
|
VAR
|
|
app : the_application;
|
|
|
|
BEGIN
|
|
app.Construct(pix_format_bgr24 ,flip_y );
|
|
app.caption_ ('AGG Example. Anti-Aliasing Test (F1-Help)' );
|
|
|
|
if app.init(480 ,350 ,window_resize ) then
|
|
app.run;
|
|
|
|
app.Destruct;
|
|
|
|
END. |