src/video/SDL_shape_internals.h
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4813:5b4c7d7d8953 4814:4f7133445367
       
     1 /*
       
     2     SDL - Simple DirectMedia Layer
       
     3     Copyright (C) 2010 Eli Gottlieb
       
     4 
       
     5     This library is free software; you can redistribute it and/or
       
     6     modify it under the terms of the GNU Lesser General Public
       
     7     License as published by the Free Software Foundation; either
       
     8     version 2.1 of the License, or (at your option) any later version.
       
     9 
       
    10     This library is distributed in the hope that it will be useful,
       
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    13     Lesser General Public License for more details.
       
    14 
       
    15     You should have received a copy of the GNU Lesser General Public
       
    16     License along with this library; if not, write to the Free Software
       
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
       
    18 
       
    19     Eli Gottlieb
       
    20     eligottlieb@gmail.com
       
    21 */
       
    22 
       
    23 #ifndef _SDL_shape_internals_h
       
    24 #define _SDL_shape_internals_h
       
    25 
       
    26 #include "SDL_rect.h"
       
    27 #include "SDL_shape.h"
       
    28 #include "SDL_surface.h"
       
    29 
       
    30 #include "begin_code.h"
       
    31 /* Set up for C function definitions, even when using C++ */
       
    32 #ifdef __cplusplus
       
    33 /* *INDENT-OFF* */
       
    34 extern "C" {
       
    35 /* *INDENT-ON* */
       
    36 #endif
       
    37 
       
    38 typedef struct {
       
    39 	struct SDL_ShapeTree *upleft,*upright,*downleft,*downright;
       
    40 } SDL_QuadTreeChildren;
       
    41 
       
    42 typedef union {
       
    43 	SDL_QuadTreeChildren children;
       
    44 	SDL_Rect shape;
       
    45 } SDL_ShapeUnion;
       
    46 
       
    47 typedef enum { QuadShape,TransparentShape,OpaqueShape } SDL_ShapeKind;
       
    48 
       
    49 typedef struct {
       
    50 	SDL_ShapeKind kind;
       
    51 	SDL_ShapeUnion data;
       
    52 } SDL_ShapeTree;
       
    53 
       
    54 extern void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode,SDL_Surface *shape,Uint8* bitmap,Uint8 ppb,Uint8 value);
       
    55 extern SDL_ShapeTree* SDL_CalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* shape,SDL_bool invert);
       
    56 extern void SDL_TraverseShapeTree(SDL_ShapeTree *tree,void(*function)(SDL_ShapeTree*,void*),void* closure);
       
    57 extern void SDL_FreeShapeTree(SDL_ShapeTree** shapeTree);
       
    58 
       
    59 /* Ends C function definitions when using C++ */
       
    60 #ifdef __cplusplus
       
    61 /* *INDENT-OFF* */
       
    62 }
       
    63 /* *INDENT-ON* */
       
    64 #endif
       
    65 #include "close_code.h"
       
    66 
       
    67 #endif