SDL_shape_internals.h
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2019 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.
*/
#include "../SDL_internal.h"
#ifndef SDL_shape_internals_h_
#define SDL_shape_internals_h_
#include "SDL_rect.h"
#include "SDL_shape.h"
#include "SDL_surface.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
typedef struct {
struct SDL_ShapeTree *upleft,*upright,*downleft,*downright;
} SDL_QuadTreeChildren;
typedef union {
SDL_QuadTreeChildren children;
SDL_Rect shape;
} SDL_ShapeUnion;
typedef enum { QuadShape,TransparentShape,OpaqueShape } SDL_ShapeKind;
typedef struct {
SDL_ShapeKind kind;
SDL_ShapeUnion data;
} SDL_ShapeTree;
typedef void(*SDL_TraversalFunction)(SDL_ShapeTree*,void*);
extern void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode,SDL_Surface *shape,Uint8* bitmap,Uint8 ppb);
extern SDL_ShapeTree* SDL_CalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* shape);
extern void SDL_TraverseShapeTree(SDL_ShapeTree *tree,SDL_TraversalFunction function,void* closure);
extern void SDL_FreeShapeTree(SDL_ShapeTree** shape_tree);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#include "close_code.h"
#endif
SDL_ShapeUnion::shape
SDL_Rect shape
Definition: SDL_shape_internals.h:44
SDL_ShapeTree
Definition: SDL_shape_internals.h:49
SDL_QuadTreeChildren
Definition: SDL_shape_internals.h:38
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:70
SDL_rect.h
SDL_QuadTreeChildren::upright
struct SDL_ShapeTree * upright
Definition: SDL_shape_internals.h:39
SDL_TraversalFunction
void(* SDL_TraversalFunction)(SDL_ShapeTree *, void *)
Definition: SDL_shape_internals.h:54
mode
GLenum mode
Definition: SDL_opengl_glext.h:1122
SDL_ShapeTree::kind
SDL_ShapeKind kind
Definition: SDL_shape_internals.h:50
SDL_surface.h
TransparentShape
@ TransparentShape
Definition: SDL_shape_internals.h:47
close_code.h
begin_code.h
SDL_WindowShapeMode
A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents.
Definition: SDL_shape.h:101
OpaqueShape
@ OpaqueShape
Definition: SDL_shape_internals.h:47
SDL_shape.h
bitmap
GLsizei GLfixed GLfixed GLfixed GLfixed const GLubyte * bitmap
Definition: SDL_opengl_glext.h:4534
SDL_ShapeTree::data
SDL_ShapeUnion data
Definition: SDL_shape_internals.h:51
SDL_FreeShapeTree
void SDL_FreeShapeTree(SDL_ShapeTree **shape_tree)
Definition: SDL_shape.c:246
SDL_Rect
A rectangle, with the origin at the upper left (integer).
Definition: SDL_rect.h:77
SDL_CalculateShapeTree
SDL_ShapeTree * SDL_CalculateShapeTree(SDL_WindowShapeMode mode, SDL_Surface *shape)
Definition: SDL_shape.c:213
SDL_TraverseShapeTree
void SDL_TraverseShapeTree(SDL_ShapeTree *tree, SDL_TraversalFunction function, void *closure)
Definition: SDL_shape.c:232
QuadShape
@ QuadShape
Definition: SDL_shape_internals.h:47
SDL_ShapeUnion::children
SDL_QuadTreeChildren children
Definition: SDL_shape_internals.h:43
void
const SDL_PRINTF_FORMAT_STRING char int const SDL_PRINTF_FORMAT_STRING char int const SDL_PRINTF_FORMAT_STRING char int const SDL_PRINTF_FORMAT_STRING char const char const SDL_SCANF_FORMAT_STRING char return SDL_ThreadFunction const char void return Uint32 return Uint32 void
Definition: SDL_dynapi_procs.h:89
SDL_ShapeUnion
Definition: SDL_shape_internals.h:42
SDL_ShapeKind
SDL_ShapeKind
Definition: SDL_shape_internals.h:47
SDL_CalculateShapeBitmap
void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode, SDL_Surface *shape, Uint8 *bitmap, Uint8 ppb)
Definition: SDL_shape.c:71
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179