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Diffstat (limited to 'agg/inc/agg_basics.h')
| -rwxr-xr-x | agg/inc/agg_basics.h | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/agg/inc/agg_basics.h b/agg/inc/agg_basics.h new file mode 100755 index 000000000000..d9ca881ab328 --- /dev/null +++ b/agg/inc/agg_basics.h @@ -0,0 +1,343 @@ +//---------------------------------------------------------------------------- +// 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 + +#include "agg_config.h" + +//-------------------------------------------------------- Default basic types +// +// If the compiler has different capacity of the basic types you can redefine +// them via the compiler command line or by generating agg_config.h that is +// empty by default. +// +#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 +#if defined(_MSC_VER) +#define AGG_INT64 signed __int64 +#else +#define AGG_INT64 signed long long +#endif +#endif + +#ifndef AGG_INT64U +#if defined(_MSC_VER) +#define AGG_INT64U unsigned __int64 +#else +#define AGG_INT64U unsigned long long +#endif +#endif + +//------------------------------------------------ Some fixes for MS Visual C++ +#if defined(_MSC_VER) +#pragma warning(disable:4786) // Identifier was truncated... +#endif + +#if defined(_MSC_VER) +#define AGG_INLINE __forceinline +#else +#define AGG_INLINE inline +#endif + +namespace agg +{ + //------------------------------------------------------------------------- + typedef AGG_INT8 int8; //----int8 + typedef AGG_INT8U int8u; //----int8u + typedef AGG_INT16 int16; //----int16 + typedef AGG_INT16U int16u; //----int16u + typedef AGG_INT32 int32; //----int32 + typedef AGG_INT32U int32u; //----int32u + typedef AGG_INT64 int64; //----int64 + typedef AGG_INT64U int64u; //----int64u + + //------------------------------------------------------------------------- + typedef unsigned char cover_type; //----cover_type + enum + { + cover_shift = 8, //----cover_shift + cover_size = 1 << cover_shift, //----cover_size + cover_mask = cover_size - 1, //----cover_mask + cover_none = 0, //----cover_none + cover_full = cover_mask //----cover_full + }; + + + //-----------------------------------------------------------------------pi + const double pi = 3.14159265358979323846; + + //------------------------------------------------------------------deg2rad + inline double deg2rad(double deg) + { + return deg * pi / 180.0; + } + + //------------------------------------------------------------------rad2deg + inline double rad2deg(double rad) + { + return rad * 180.0 / pi; + } + + //----------------------------------------------------------------rect_base + 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; + } + }; + + //-----------------------------------------------------intersect_rectangles + template<class Rect> + inline Rect intersect_rectangles(const Rect& r1, const Rect& r2) + { + Rect r = r1; + + // First process x2,y2 because the other order + // results in Internal Compiler Error under + // Microsoft Visual C++ .NET 2003 69462-335-0000007-18038 in + // case of "Maximize Speed" optimization option. + //----------------- + 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; + } + + + //---------------------------------------------------------unite_rectangles + 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; //----rect + typedef rect_base<double> rect_d; //----rect_d + + //---------------------------------------------------------path_commands_e + enum path_commands_e + { + path_cmd_stop = 0, //----path_cmd_stop + path_cmd_move_to = 1, //----path_cmd_move_to + path_cmd_line_to = 2, //----path_cmd_line_to + path_cmd_curve3 = 3, //----path_cmd_curve3 + path_cmd_curve4 = 4, //----path_cmd_curve4 + path_cmd_end_poly = 6, //----path_cmd_end_poly + path_cmd_mask = 0x0F //----path_cmd_mask + }; + + //------------------------------------------------------------path_flags_e + enum path_flags_e + { + path_flags_none = 0, //----path_flags_none + path_flags_ccw = 0x10, //----path_flags_ccw + path_flags_cw = 0x20, //----path_flags_cw + path_flags_close = 0x40, //----path_flags_close + path_flags_mask = 0xF0 //----path_flags_mask + }; + + //---------------------------------------------------------------is_vertex + inline bool is_vertex(unsigned c) + { + return c >= path_cmd_move_to && c < path_cmd_end_poly; + } + + //-----------------------------------------------------------------is_stop + inline bool is_stop(unsigned c) + { + return c == path_cmd_stop; + } + + //--------------------------------------------------------------is_move_to + inline bool is_move_to(unsigned c) + { + return c == path_cmd_move_to; + } + + //--------------------------------------------------------------is_line_to + inline bool is_line_to(unsigned c) + { + return c == path_cmd_line_to; + } + + //----------------------------------------------------------------is_curve + inline bool is_curve(unsigned c) + { + return c == path_cmd_curve3 || c == path_cmd_curve4; + } + + //---------------------------------------------------------------is_curve3 + inline bool is_curve3(unsigned c) + { + return c == path_cmd_curve3; + } + + //---------------------------------------------------------------is_curve4 + inline bool is_curve4(unsigned c) + { + return c == path_cmd_curve4; + } + + //-------------------------------------------------------------is_end_poly + inline bool is_end_poly(unsigned c) + { + return (c & path_cmd_mask) == path_cmd_end_poly; + } + + //----------------------------------------------------------------is_close + inline bool is_close(unsigned c) + { + return (c & ~(path_flags_cw | path_flags_ccw)) == + (((bool)path_cmd_end_poly) | ((bool)path_flags_close)); + } + + //------------------------------------------------------------is_next_poly + inline bool is_next_poly(unsigned c) + { + return is_stop(c) || is_move_to(c) || is_end_poly(c); + } + + //-------------------------------------------------------------------is_cw + inline bool is_cw(unsigned c) + { + return (c & path_flags_cw) != 0; + } + + //------------------------------------------------------------------is_ccw + inline bool is_ccw(unsigned c) + { + return (c & path_flags_ccw) != 0; + } + + //-------------------------------------------------------------is_oriented + inline bool is_oriented(unsigned c) + { + return (c & (path_flags_cw | path_flags_ccw)) != 0; + } + + //---------------------------------------------------------------is_closed + inline bool is_closed(unsigned c) + { + return (c & path_flags_close) != 0; + } + + //----------------------------------------------------------get_close_flag + inline unsigned get_close_flag(unsigned c) + { + return c & path_flags_close; + } + + //-------------------------------------------------------clear_orientation + inline unsigned clear_orientation(unsigned c) + { + return c & ~(path_flags_cw | path_flags_ccw); + } + + //---------------------------------------------------------get_orientation + inline unsigned get_orientation(unsigned c) + { + return c & (path_flags_cw | path_flags_ccw); + } + + //---------------------------------------------------------set_orientation + inline unsigned set_orientation(unsigned c, unsigned o) + { + return clear_orientation(c) | o; + } + + //--------------------------------------------------------------point_type + struct point_type + { + double x, y; + + point_type() {} + point_type(double x_, double y_) : x(x_), y(y_) {} + }; + + //-------------------------------------------------------------vertex_type + struct vertex_type + { + double x, y; + unsigned cmd; + + vertex_type() {} + vertex_type(double x_, double y_, unsigned cmd_) : + x(x_), y(y_), cmd(cmd_) {} + }; + + +} + + +#endif + |