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Diffstat (limited to 'third_party/agg23/agg_basics.h')
| -rw-r--r-- | third_party/agg23/agg_basics.h | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/third_party/agg23/agg_basics.h b/third_party/agg23/agg_basics.h new file mode 100644 index 0000000000..d2fad58feb --- /dev/null +++ b/third_party/agg23/agg_basics.h @@ -0,0 +1,282 @@ + +//---------------------------------------------------------------------------- +// Anti-Grain Geometry - Version 2.3 +// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// +//---------------------------------------------------------------------------- +// Contact: mcseem@antigrain.com +// mcseemagg@yahoo.com +// http://www.antigrain.com +//---------------------------------------------------------------------------- +#ifndef AGG_BASICS_INCLUDED +#define AGG_BASICS_INCLUDED +#ifndef AGG_INT8 +#define AGG_INT8 signed char +#endif +#ifndef AGG_INT8U +#define AGG_INT8U unsigned char +#endif +#ifndef AGG_INT16 +#define AGG_INT16 short +#endif +#ifndef AGG_INT16U +#define AGG_INT16U unsigned short +#endif +#ifndef AGG_INT32 +#define AGG_INT32 int +#endif +#ifndef AGG_INT32U +#define AGG_INT32U unsigned +#endif +#ifndef AGG_INT64 +#define AGG_INT64 signed long long +#endif +#ifndef AGG_INT64U +#define AGG_INT64U unsigned long long +#endif +#define AGG_INLINE inline +namespace agg +{ +typedef AGG_INT8 int8; +typedef AGG_INT8U int8u; +typedef AGG_INT16 int16; +typedef AGG_INT16U int16u; +typedef AGG_INT32 int32; +typedef AGG_INT32U int32u; +typedef AGG_INT64 int64; +typedef AGG_INT64U int64u; +typedef unsigned char cover_type; +enum cover_scale_e { + cover_shift = 8, + cover_size = 1 << cover_shift, + cover_mask = cover_size - 1, + cover_none = 0, + cover_full = cover_mask +}; +template<class T> struct rect_base { + typedef rect_base<T> self_type; + T x1; + T y1; + T x2; + T y2; + rect_base() {} + rect_base(T x1_, T y1_, T x2_, T y2_) : + x1(x1_), y1(y1_), x2(x2_), y2(y2_) {} + const self_type& normalize() + { + T t; + if(x1 > x2) { + t = x1; + x1 = x2; + x2 = t; + } + if(y1 > y2) { + t = y1; + y1 = y2; + y2 = t; + } + return *this; + } + bool clip(const self_type& r) + { + if(x2 > r.x2) { + x2 = r.x2; + } + if(y2 > r.y2) { + y2 = r.y2; + } + if(x1 < r.x1) { + x1 = r.x1; + } + if(y1 < r.y1) { + y1 = r.y1; + } + return x1 <= x2 && y1 <= y2; + } + bool is_valid() const + { + return x1 <= x2 && y1 <= y2; + } +}; +template<class Rect> +inline Rect intersect_rectangles(const Rect& r1, const Rect& r2) +{ + Rect r = r1; + if(r.x2 > r2.x2) { + r.x2 = r2.x2; + } + if(r.y2 > r2.y2) { + r.y2 = r2.y2; + } + if(r.x1 < r2.x1) { + r.x1 = r2.x1; + } + if(r.y1 < r2.y1) { + r.y1 = r2.y1; + } + return r; +} +template<class Rect> +inline Rect unite_rectangles(const Rect& r1, const Rect& r2) +{ + Rect r = r1; + if(r.x2 < r2.x2) { + r.x2 = r2.x2; + } + if(r.y2 < r2.y2) { + r.y2 = r2.y2; + } + if(r.x1 > r2.x1) { + r.x1 = r2.x1; + } + if(r.y1 > r2.y1) { + r.y1 = r2.y1; + } + return r; +} +typedef rect_base<int> rect; +typedef rect_base<FX_FLOAT> rect_d; +enum path_commands_e { + path_cmd_stop = 0, + path_cmd_move_to = 1, + path_cmd_line_to = 2, + path_cmd_curve3 = 3, + path_cmd_curve4 = 4, + path_cmd_curveN = 5, + path_cmd_catrom = 6, + path_cmd_ubspline = 7, + path_cmd_end_poly = 0x0F, + path_cmd_mask = 0x0F +}; +enum path_flags_e { + path_flags_none = 0, + path_flags_ccw = 0x10, + path_flags_cw = 0x20, + path_flags_close = 0x40, + path_flags_jr = 0x80, + path_flags_mask = 0xF0 +}; +inline bool is_vertex(unsigned c) +{ + c &= ~path_flags_jr; + return c >= path_cmd_move_to && c < path_cmd_end_poly; +} +inline bool is_drawing(unsigned c) +{ + c &= ~path_flags_jr; + return c >= path_cmd_line_to && c < path_cmd_end_poly; +} +inline bool is_stop(unsigned c) +{ + c &= ~path_flags_jr; + return c == path_cmd_stop; +} +inline bool is_move_to(unsigned c) +{ + c &= ~path_flags_jr; + return c == path_cmd_move_to; +} +inline bool is_line_to(unsigned c) +{ + c &= ~path_flags_jr; + return c == path_cmd_line_to; +} +inline bool is_curve(unsigned c) +{ + c &= ~path_flags_jr; + return c == path_cmd_curve3 || c == path_cmd_curve4; +} +inline bool is_curve3(unsigned c) +{ + c &= ~path_flags_jr; + return c == path_cmd_curve3; +} +inline bool is_curve4(unsigned c) +{ + c &= ~path_flags_jr; + return c == path_cmd_curve4; +} +inline bool is_end_poly(unsigned c) +{ + c &= ~path_flags_jr; + return (c & path_cmd_mask) == path_cmd_end_poly; +} +inline bool is_close(unsigned c) +{ + c &= ~path_flags_jr; + return (c & ~(path_flags_cw | path_flags_ccw)) == + (path_cmd_end_poly | path_flags_close); +} +inline bool is_next_poly(unsigned c) +{ + c &= ~path_flags_jr; + return is_stop(c) || is_move_to(c) || is_end_poly(c); +} +inline bool is_cw(unsigned c) +{ + c &= ~path_flags_jr; + return (c & path_flags_cw) != 0; +} +inline bool is_ccw(unsigned c) +{ + c &= ~path_flags_jr; + return (c & path_flags_ccw) != 0; +} +inline bool is_oriented(unsigned c) +{ + c &= ~path_flags_jr; + return (c & (path_flags_cw | path_flags_ccw)) != 0; +} +inline bool is_closed(unsigned c) +{ + c &= ~path_flags_jr; + return (c & path_flags_close) != 0; +} +inline unsigned get_close_flag(unsigned c) +{ + c &= ~path_flags_jr; + return c & path_flags_close; +} +inline unsigned clear_orientation(unsigned c) +{ + c &= ~path_flags_jr; + return c & ~(path_flags_cw | path_flags_ccw); +} +inline unsigned get_orientation(unsigned c) +{ + c &= ~path_flags_jr; + return c & (path_flags_cw | path_flags_ccw); +} +inline unsigned set_orientation(unsigned c, unsigned o) +{ + c &= ~path_flags_jr; + return clear_orientation(c) | o; +} +struct point_type { + FX_FLOAT x, y; + unsigned flag; + point_type() {} + point_type(FX_FLOAT x_, FX_FLOAT y_, unsigned flag_ = 0) : x(x_), y(y_), flag(flag_) {} +}; +struct point_type_flag : public point_type { + unsigned flag; + point_type_flag() + { + flag = 0; + } + point_type_flag(FX_FLOAT x_, FX_FLOAT y_, unsigned flag_ = 0) : point_type(x_, y_), flag(flag_) {} +}; +struct vertex_type { + FX_FLOAT x, y; + unsigned cmd; + vertex_type() {} + vertex_type(FX_FLOAT x_, FX_FLOAT y_, unsigned cmd_) : + x(x_), y(y_), cmd(cmd_) {} +}; +} +#endif |