zenilib: zenilib/jni/external/sdl/SDL/SDL_rect.h Source File

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SDL_rect.h
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1 /*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20 */
21
28 #ifndef _SDL_rect_h
29 #define _SDL_rect_h
30
31 #include "SDL_stdinc.h"
32 #include "SDL_error.h"
33 #include "SDL_pixels.h"
34 #include "SDL_rwops.h"
35
36 #include "begin_code.h"
37 /* Set up for C function definitions, even when using C++ */
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
47 typedef struct SDL_Point
48 {
49 int x;
50 int y;
51 } SDL_Point;
52
63 typedef struct SDL_Rect
64 {
65 int x, y;
66 int w, h;
67 } SDL_Rect;
68
72 SDL_FORCE_INLINE SDL_bool SDL_RectEmpty(const SDL_Rect *r)
73 {
74 return ((!r) || (r->w <= 0) || (r->h <= 0)) ? SDL_TRUE : SDL_FALSE;
75 }
76
80 SDL_FORCE_INLINE SDL_bool SDL_RectEquals(const SDL_Rect *a, const SDL_Rect *b)
81 {
82 return (a && b && (a->x == b->x) && (a->y == b->y) &&
83 (a->w == b->w) && (a->h == b->h)) ? SDL_TRUE : SDL_FALSE;
84 }
85
91 extern DECLSPEC SDL_bool SDLCALL SDL_HasIntersection(const SDL_Rect * A,
92 const SDL_Rect * B);
93
99 extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect * A,
100 const SDL_Rect * B,
101 SDL_Rect * result);
102
106 extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A,
107 const SDL_Rect * B,
108 SDL_Rect * result);
109
115 extern DECLSPEC SDL_bool SDLCALL SDL_EnclosePoints(const SDL_Point * points,
116 int count,
117 const SDL_Rect * clip,
118 SDL_Rect * result);
119
125 extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRectAndLine(const SDL_Rect *
126 rect, int *X1,
127 int *Y1, int *X2,
128 int *Y2);
129
130 /* Ends C function definitions when using C++ */
131 #ifdef __cplusplus
132 }
133 #endif
134 #include "close_code.h"
135
136 #endif /* _SDL_rect_h */
137
138 /* vi: set ts=4 sw=4 expandtab: */
SDL_IntersectRectAndLine
DECLSPEC SDL_bool SDLCALL SDL_IntersectRectAndLine(const SDL_Rect *rect, int *X1, int *Y1, int *X2, int *Y2)
Calculate the intersection of a rectangle and line segment.
Definition: SDL_rect.c:316
SDL_RectEquals
SDL_FORCE_INLINE SDL_bool SDL_RectEquals(const SDL_Rect *a, const SDL_Rect *b)
Returns true if the two rectangles are equal.
Definition: SDL_rect.h:80
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:116
SDL_TRUE
Definition: SDL_stdinc.h:119
SDL_Point
The structure that defines a point.
Definition: SDL_rect.h:47
a
GLboolean GLboolean GLboolean GLboolean a
Definition: glew.h:8736
DECLSPEC
#define DECLSPEC
Definition: begin_code.h:62
SDL_EnclosePoints
DECLSPEC SDL_bool SDLCALL SDL_EnclosePoints(const SDL_Point *points, int count, const SDL_Rect *clip, SDL_Rect *result)
Calculate a minimal rectangle enclosing a set of points.
Definition: SDL_rect.c:192
SDLCALL
#define SDLCALL
Definition: begin_code.h:72
begin_code.h
SDL_FALSE
Definition: SDL_stdinc.h:118
SDL_RectEmpty
SDL_FORCE_INLINE SDL_bool SDL_RectEmpty(const SDL_Rect *r)
Returns true if the rectangle has no area.
Definition: SDL_rect.h:72
SDL_FORCE_INLINE
#define SDL_FORCE_INLINE
Definition: begin_code.h:141
SDL_Rect
struct SDL_Rect SDL_Rect
A rectangle, with the origin at the upper left.
SDL_Point::x
int x
Definition: SDL_rect.h:49
result
GLuint64EXT * result
Definition: glew.h:12708
SDL_UnionRect
DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect *A, const SDL_Rect *B, SDL_Rect *result)
Calculate the union of two rectangles.
Definition: SDL_rect.c:129
SDL_IntersectRect
DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect *A, const SDL_Rect *B, SDL_Rect *result)
Calculate the intersection of two rectangles.
Definition: SDL_rect.c:75
close_code.h
SDL_Point::y
int y
Definition: SDL_rect.h:50
count
GLint GLsizei count
Definition: gl2ext.h:1011
SDL_HasIntersection
DECLSPEC SDL_bool SDLCALL SDL_HasIntersection(const SDL_Rect *A, const SDL_Rect *B)
Determine whether two rectangles intersect.
Definition: SDL_rect.c:28
SDL_stdinc.h
SDL_Rect::x
int x
Definition: SDL_rect.h:65
SDL_Rect::w
int w
Definition: SDL_rect.h:66
SDL_pixels.h
SDL_rwops.h
SDL_Rect::h
int h
Definition: SDL_rect.h:66
r
GLdouble GLdouble GLdouble r
Definition: glew.h:1392
b
GLdouble GLdouble GLdouble b
Definition: glew.h:8383
points
GLuint GLdouble GLdouble GLint GLint const GLdouble * points
Definition: glew.h:3337
SDL_Point
struct SDL_Point SDL_Point
The structure that defines a point.
SDL_error.h
SDL_Rect::y
int y
Definition: SDL_rect.h:65
SDL_Rect
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:63