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Diffstat (limited to 'dependencies/SDL/SDL_rect.h')
| -rw-r--r-- | dependencies/SDL/SDL_rect.h | 376 |
1 files changed, 0 insertions, 376 deletions
diff --git a/dependencies/SDL/SDL_rect.h b/dependencies/SDL/SDL_rect.h deleted file mode 100644 index 6c641c5..0000000 --- a/dependencies/SDL/SDL_rect.h +++ /dev/null @@ -1,376 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ - -/** - * \file SDL_rect.h - * - * Header file for SDL_rect definition and management functions. - */ - -#ifndef SDL_rect_h_ -#define SDL_rect_h_ - -#include "SDL_stdinc.h" -#include "SDL_error.h" -#include "SDL_pixels.h" -#include "SDL_rwops.h" - -#include "begin_code.h" -/* Set up for C function definitions, even when using C++ */ -#ifdef __cplusplus -extern "C" { -#endif - -/** - * The structure that defines a point (integer) - * - * \sa SDL_EnclosePoints - * \sa SDL_PointInRect - */ -typedef struct SDL_Point -{ - int x; - int y; -} SDL_Point; - -/** - * The structure that defines a point (floating point) - * - * \sa SDL_EncloseFPoints - * \sa SDL_PointInFRect - */ -typedef struct SDL_FPoint -{ - float x; - float y; -} SDL_FPoint; - - -/** - * A rectangle, with the origin at the upper left (integer). - * - * \sa SDL_RectEmpty - * \sa SDL_RectEquals - * \sa SDL_HasIntersection - * \sa SDL_IntersectRect - * \sa SDL_IntersectRectAndLine - * \sa SDL_UnionRect - * \sa SDL_EnclosePoints - */ -typedef struct SDL_Rect -{ - int x, y; - int w, h; -} SDL_Rect; - - -/** - * A rectangle, with the origin at the upper left (floating point). - * - * \sa SDL_FRectEmpty - * \sa SDL_FRectEquals - * \sa SDL_FRectEqualsEpsilon - * \sa SDL_HasIntersectionF - * \sa SDL_IntersectFRect - * \sa SDL_IntersectFRectAndLine - * \sa SDL_UnionFRect - * \sa SDL_EncloseFPoints - * \sa SDL_PointInFRect - */ -typedef struct SDL_FRect -{ - float x; - float y; - float w; - float h; -} SDL_FRect; - - -/** - * Returns true if point resides inside a rectangle. - */ -SDL_FORCE_INLINE SDL_bool SDL_PointInRect(const SDL_Point *p, const SDL_Rect *r) -{ - return ( (p->x >= r->x) && (p->x < (r->x + r->w)) && - (p->y >= r->y) && (p->y < (r->y + r->h)) ) ? SDL_TRUE : SDL_FALSE; -} - -/** - * Returns true if the rectangle has no area. - */ -SDL_FORCE_INLINE SDL_bool SDL_RectEmpty(const SDL_Rect *r) -{ - return ((!r) || (r->w <= 0) || (r->h <= 0)) ? SDL_TRUE : SDL_FALSE; -} - -/** - * Returns true if the two rectangles are equal. - */ -SDL_FORCE_INLINE SDL_bool SDL_RectEquals(const SDL_Rect *a, const SDL_Rect *b) -{ - return (a && b && (a->x == b->x) && (a->y == b->y) && - (a->w == b->w) && (a->h == b->h)) ? SDL_TRUE : SDL_FALSE; -} - -/** - * Determine whether two rectangles intersect. - * - * If either pointer is NULL the function will return SDL_FALSE. - * - * \param A an SDL_Rect structure representing the first rectangle - * \param B an SDL_Rect structure representing the second rectangle - * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise. - * - * \since This function is available since SDL 2.0.0. - * - * \sa SDL_IntersectRect - */ -extern DECLSPEC SDL_bool SDLCALL SDL_HasIntersection(const SDL_Rect * A, - const SDL_Rect * B); - -/** - * Calculate the intersection of two rectangles. - * - * If `result` is NULL then this function will return SDL_FALSE. - * - * \param A an SDL_Rect structure representing the first rectangle - * \param B an SDL_Rect structure representing the second rectangle - * \param result an SDL_Rect structure filled in with the intersection of - * rectangles `A` and `B` - * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise. - * - * \since This function is available since SDL 2.0.0. - * - * \sa SDL_HasIntersection - */ -extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect * A, - const SDL_Rect * B, - SDL_Rect * result); - -/** - * Calculate the union of two rectangles. - * - * \param A an SDL_Rect structure representing the first rectangle - * \param B an SDL_Rect structure representing the second rectangle - * \param result an SDL_Rect structure filled in with the union of rectangles - * `A` and `B` - * - * \since This function is available since SDL 2.0.0. - */ -extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A, - const SDL_Rect * B, - SDL_Rect * result); - -/** - * Calculate a minimal rectangle enclosing a set of points. - * - * If `clip` is not NULL then only points inside of the clipping rectangle are - * considered. - * - * \param points an array of SDL_Point structures representing points to be - * enclosed - * \param count the number of structures in the `points` array - * \param clip an SDL_Rect used for clipping or NULL to enclose all points - * \param result an SDL_Rect structure filled in with the minimal enclosing - * rectangle - * \returns SDL_TRUE if any points were enclosed or SDL_FALSE if all the - * points were outside of the clipping rectangle. - * - * \since This function is available since SDL 2.0.0. - */ -extern DECLSPEC SDL_bool SDLCALL SDL_EnclosePoints(const SDL_Point * points, - int count, - const SDL_Rect * clip, - SDL_Rect * result); - -/** - * Calculate the intersection of a rectangle and line segment. - * - * This function is used to clip a line segment to a rectangle. A line segment - * contained entirely within the rectangle or that does not intersect will - * remain unchanged. A line segment that crosses the rectangle at either or - * both ends will be clipped to the boundary of the rectangle and the new - * coordinates saved in `X1`, `Y1`, `X2`, and/or `Y2` as necessary. - * - * \param rect an SDL_Rect structure representing the rectangle to intersect - * \param X1 a pointer to the starting X-coordinate of the line - * \param Y1 a pointer to the starting Y-coordinate of the line - * \param X2 a pointer to the ending X-coordinate of the line - * \param Y2 a pointer to the ending Y-coordinate of the line - * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise. - * - * \since This function is available since SDL 2.0.0. - */ -extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRectAndLine(const SDL_Rect * - rect, int *X1, - int *Y1, int *X2, - int *Y2); - - -/* SDL_FRect versions... */ - -/** - * Returns true if point resides inside a rectangle. - */ -SDL_FORCE_INLINE SDL_bool SDL_PointInFRect(const SDL_FPoint *p, const SDL_FRect *r) -{ - return ( (p->x >= r->x) && (p->x < (r->x + r->w)) && - (p->y >= r->y) && (p->y < (r->y + r->h)) ) ? SDL_TRUE : SDL_FALSE; -} - -/** - * Returns true if the rectangle has no area. - */ -SDL_FORCE_INLINE SDL_bool SDL_FRectEmpty(const SDL_FRect *r) -{ - return ((!r) || (r->w <= 0.0f) || (r->h <= 0.0f)) ? SDL_TRUE : SDL_FALSE; -} - -/** - * Returns true if the two rectangles are equal, within some given epsilon. - * - * \since This function is available since SDL 2.0.22. - */ -SDL_FORCE_INLINE SDL_bool SDL_FRectEqualsEpsilon(const SDL_FRect *a, const SDL_FRect *b, const float epsilon) -{ - return (a && b && ((a == b) || - ((SDL_fabsf(a->x - b->x) <= epsilon) && - (SDL_fabsf(a->y - b->y) <= epsilon) && - (SDL_fabsf(a->w - b->w) <= epsilon) && - (SDL_fabsf(a->h - b->h) <= epsilon)))) - ? SDL_TRUE : SDL_FALSE; -} - -/** - * Returns true if the two rectangles are equal, using a default epsilon. - * - * \since This function is available since SDL 2.0.22. - */ -SDL_FORCE_INLINE SDL_bool SDL_FRectEquals(const SDL_FRect *a, const SDL_FRect *b) -{ - return SDL_FRectEqualsEpsilon(a, b, SDL_FLT_EPSILON); -} - -/** - * Determine whether two rectangles intersect with float precision. - * - * If either pointer is NULL the function will return SDL_FALSE. - * - * \param A an SDL_FRect structure representing the first rectangle - * \param B an SDL_FRect structure representing the second rectangle - * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise. - * - * \since This function is available since SDL 2.0.22. - * - * \sa SDL_IntersectRect - */ -extern DECLSPEC SDL_bool SDLCALL SDL_HasIntersectionF(const SDL_FRect * A, - const SDL_FRect * B); - -/** - * Calculate the intersection of two rectangles with float precision. - * - * If `result` is NULL then this function will return SDL_FALSE. - * - * \param A an SDL_FRect structure representing the first rectangle - * \param B an SDL_FRect structure representing the second rectangle - * \param result an SDL_FRect structure filled in with the intersection of - * rectangles `A` and `B` - * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise. - * - * \since This function is available since SDL 2.0.22. - * - * \sa SDL_HasIntersectionF - */ -extern DECLSPEC SDL_bool SDLCALL SDL_IntersectFRect(const SDL_FRect * A, - const SDL_FRect * B, - SDL_FRect * result); - -/** - * Calculate the union of two rectangles with float precision. - * - * \param A an SDL_FRect structure representing the first rectangle - * \param B an SDL_FRect structure representing the second rectangle - * \param result an SDL_FRect structure filled in with the union of rectangles - * `A` and `B` - * - * \since This function is available since SDL 2.0.22. - */ -extern DECLSPEC void SDLCALL SDL_UnionFRect(const SDL_FRect * A, - const SDL_FRect * B, - SDL_FRect * result); - -/** - * Calculate a minimal rectangle enclosing a set of points with float - * precision. - * - * If `clip` is not NULL then only points inside of the clipping rectangle are - * considered. - * - * \param points an array of SDL_FPoint structures representing points to be - * enclosed - * \param count the number of structures in the `points` array - * \param clip an SDL_FRect used for clipping or NULL to enclose all points - * \param result an SDL_FRect structure filled in with the minimal enclosing - * rectangle - * \returns SDL_TRUE if any points were enclosed or SDL_FALSE if all the - * points were outside of the clipping rectangle. - * - * \since This function is available since SDL 2.0.22. - */ -extern DECLSPEC SDL_bool SDLCALL SDL_EncloseFPoints(const SDL_FPoint * points, - int count, - const SDL_FRect * clip, - SDL_FRect * result); - -/** - * Calculate the intersection of a rectangle and line segment with float - * precision. - * - * This function is used to clip a line segment to a rectangle. A line segment - * contained entirely within the rectangle or that does not intersect will - * remain unchanged. A line segment that crosses the rectangle at either or - * both ends will be clipped to the boundary of the rectangle and the new - * coordinates saved in `X1`, `Y1`, `X2`, and/or `Y2` as necessary. - * - * \param rect an SDL_FRect structure representing the rectangle to intersect - * \param X1 a pointer to the starting X-coordinate of the line - * \param Y1 a pointer to the starting Y-coordinate of the line - * \param X2 a pointer to the ending X-coordinate of the line - * \param Y2 a pointer to the ending Y-coordinate of the line - * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise. - * - * \since This function is available since SDL 2.0.22. - */ -extern DECLSPEC SDL_bool SDLCALL SDL_IntersectFRectAndLine(const SDL_FRect * - rect, float *X1, - float *Y1, float *X2, - float *Y2); - -/* Ends C function definitions when using C++ */ -#ifdef __cplusplus -} -#endif -#include "close_code.h" - -#endif /* SDL_rect_h_ */ - -/* vi: set ts=4 sw=4 expandtab: */ |