sdl-ios-xcode: include/SDL_surface.h annotate

annotate include/SDL_surface.h @ 5230:5d01d426f2ea

It's now possible to disable the fast atomic operations, at a huge performance penalty.

author	Sam Lantinga <slouken@libsdl.org>
date	Mon, 07 Feb 2011 22:57:33 -0800
parents	d72793305335
children	189b1bdb7baf

rev	line source
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
3697 f7b03b6838cb Fixed bug #926 Sam Lantinga <slouken@libsdl.org> parents: 3596 diff changeset	3 Copyright (C) 1997-2010 Sam Lantinga
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	24 * \file SDL_surface.h
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	25 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	26 * Header file for ::SDL_surface definition and management functions.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #ifndef _SDL_surface_h
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #define _SDL_surface_h
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 #include "SDL_stdinc.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 #include "SDL_pixels.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 #include "SDL_rect.h"
4929 aa8888658021 Use the enumerated type for blend and scale mode instead of int Sam Lantinga <slouken@libsdl.org> parents: 4424 diff changeset	35 #include "SDL_blendmode.h"
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 #include "SDL_rwops.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 #include "begin_code.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 /* Set up for C function definitions, even when using C++ */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 #ifdef __cplusplus
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 /* INDENT-OFF */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 extern "C" {
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43 /* INDENT-ON */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 #endif
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	46 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	47 * \name Surface flags
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	48 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	49 * These are the currently supported flags for the ::SDL_surface.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	50 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	51 * \internal
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	52 * Used internally (read-only).
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	53 */
710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	54 /@{/
710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	55 #define SDL_PREALLOC 0x00000001 /*< Surface uses preallocated memory /
710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	56 #define SDL_RLEACCEL 0x00000002 /*< Surface is RLE encoded /
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	57 /@}//Surface flags/
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	59 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	60 * Evaluates to true if the surface needs to be locked before access.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	61 */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 #define SDL_MUSTLOCK(S) (((S)->flags & SDL_RLEACCEL) != 0)
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	65 * \brief A collection of pixels used in software blitting.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 *
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	67 * \note This structure should be treated as read-only, except for \c pixels,
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 * which, if not NULL, contains the raw pixel data for the surface.
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 typedef struct SDL_Surface
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 {
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 Uint32 flags; /*< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 SDL_PixelFormat format; /< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 int w, h; /*< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 int pitch; /*< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 void pixels; /< Read-write /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77
3708 d3f7cf8b0db0 Fixed typo in the comment Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	78 /** Application data associated with the surface */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 void userdata; /< Read-write /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	81 /** information needed for surfaces requiring locks */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 int locked; /*< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 void lock_data; /< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	85 /** clipping information */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 SDL_Rect clip_rect; /*< Read-only /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	88 /** info for fast blit mapping to other surfaces */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 struct SDL_BlitMap map; /< Private /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	91 /** format version, bumped at every change to invalidate blit maps */
4929 aa8888658021 Use the enumerated type for blend and scale mode instead of int Sam Lantinga <slouken@libsdl.org> parents: 4424 diff changeset	92 int format_version; /*< Private /
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	94 /** Reference count -- used when freeing surface */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 int refcount; /*< Read-mostly /
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 } SDL_Surface;
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	99 * \brief The type of function used for surface blitting functions.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 typedef int (SDL_blit) (struct SDL_Surface src, SDL_Rect * srcrect,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 struct SDL_Surface * dst, SDL_Rect * dstrect);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	104 /**
4424 274743af0430 Removed reference to compatibility function Sam Lantinga <slouken@libsdl.org> parents: 3709 diff changeset	105 * Allocate and free an RGB surface.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	106 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	107 * If the depth is 4 or 8 bits, an empty palette is allocated for the surface.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	108 * If the depth is greater than 8 bits, the pixel format is set using the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	109 * flags '[RGB]mask'.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	110 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	111 * If the function runs out of memory, it will return NULL.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	112 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	113 * \param flags The \c flags are obsolete and should be set to 0.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 (Uint32 flags, int width, int height, int depth,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 extern DECLSPEC SDL_Surface SDLCALL SDL_CreateRGBSurfaceFrom(void pixels,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 int width,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 int height,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 int depth,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 int pitch,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 Uint32 Rmask,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 Uint32 Gmask,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 Uint32 Bmask,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 Uint32 Amask);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	130 * \brief Set the palette used by a surface.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	131 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	132 * \return 0, or -1 if the surface format doesn't use a palette.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	133 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	134 * \note A single palette can be shared with many surfaces.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 SDL_Palette * palette);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	139 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	140 * \brief Sets up a surface for directly accessing the pixels.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	141 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	142 * Between calls to SDL_LockSurface() / SDL_UnlockSurface(), you can write
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	143 * to and read from \c surface->pixels, using the pixel format stored in
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	144 * \c surface->format. Once you are done accessing the surface, you should
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	145 * use SDL_UnlockSurface() to release it.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	146 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	147 * Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	148 * to 0, then you can read and write to the surface at any time, and the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	149 * pixel format of the surface will not change.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	150 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	151 * No operating system or library calls should be made between lock/unlock
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	152 * pairs, as critical system locks may be held during this time.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	153 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	154 * SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	155 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	156 * \sa SDL_UnlockSurface()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface);
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	159 /** \sa SDL_LockSurface() */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	162 /**
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	163 * Load a surface from a seekable SDL data stream (memory or file).
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	164 *
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	165 * If \c freesrc is non-zero, the stream will be closed after being read.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	166 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	167 * The new surface should be freed with SDL_FreeSurface().
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	168 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	169 * \return the new surface, or NULL if there was an error.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 extern DECLSPEC SDL_Surface SDLCALL SDL_LoadBMP_RW(SDL_RWops src,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172 int freesrc);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	174 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	175 * Load a surface from a file.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	176 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	177 * Convenience macro.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	178 */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	179 #define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1)
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	181 /**
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	182 * Save a surface to a seekable SDL data stream (memory or file).
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	183 *
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	184 * If \c freedst is non-zero, the stream will be closed after being written.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	185 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	186 * \return 0 if successful or -1 if there was an error.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188 extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189 (SDL_Surface * surface, SDL_RWops * dst, int freedst);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	191 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	192 * Save a surface to a file.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	193 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	194 * Convenience macro.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	195 */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196 #define SDL_SaveBMP(surface, file) \
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1)
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	199 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	200 * \brief Sets the RLE acceleration hint for a surface.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	201 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	202 * \return 0 on success, or -1 if the surface is not valid
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	203 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	204 * \note If RLE is enabled, colorkey and alpha blending blits are much faster,
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	205 * but the surface must be locked before directly accessing the pixels.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 extern DECLSPEC int SDLCALL SDL_SetSurfaceRLE(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	208 int flag);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	210 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	211 * \brief Sets the color key (transparent pixel) in a blittable surface.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	212 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	213 * \param surface The surface to update
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	214 * \param flag Non-zero to enable colorkey and 0 to disable colorkey
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	215 * \param key The transparent pixel in the native surface format
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	216 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	217 * \return 0 on success, or -1 if the surface is not valid
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	218 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	219 extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface,
3560 5543db4239e6 The SDL 1.3 tests have been cleaned up not to include any 1.2 compatibility code. Sam Lantinga <slouken@libsdl.org> parents: 3550 diff changeset	220 int flag, Uint32 key);
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	221
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	222 /**
3550 6b69c5def097 Minor documentation fix Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	223 * \brief Gets the color key (transparent pixel) in a blittable surface.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	224 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	225 * \param surface The surface to update
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	226 * \param key A pointer filled in with the transparent pixel in the native
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	227 * surface format
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	228 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	229 * \return 0 on success, or -1 if the surface is not valid or colorkey is not
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	230 * enabled.
3103 7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3026 diff changeset	231 */
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3026 diff changeset	232 extern DECLSPEC int SDLCALL SDL_GetColorKey(SDL_Surface * surface,
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3026 diff changeset	233 Uint32 * key);
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3026 diff changeset	234
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	235 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	236 * \brief Set an additional color value used in blit operations.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	237 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	238 * \param surface The surface to update.
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	239 * \param r The red color value multiplied into blit operations.
158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	240 * \param g The green color value multiplied into blit operations.
158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	241 * \param b The blue color value multiplied into blit operations.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	242 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	243 * \return 0 on success, or -1 if the surface is not valid.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	244 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	245 * \sa SDL_GetSurfaceColorMod()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	246 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	247 extern DECLSPEC int SDLCALL SDL_SetSurfaceColorMod(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 Uint8 r, Uint8 g, Uint8 b);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	250
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	252 * \brief Get the additional color value used in blit operations.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	253 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	254 * \param surface The surface to query.
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	255 * \param r A pointer filled in with the current red color value.
158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	256 * \param g A pointer filled in with the current green color value.
158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	257 * \param b A pointer filled in with the current blue color value.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	258 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	259 * \return 0 on success, or -1 if the surface is not valid.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	260 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	261 * \sa SDL_SetSurfaceColorMod()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 extern DECLSPEC int SDLCALL SDL_GetSurfaceColorMod(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	264 Uint8 * r, Uint8 * g,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 Uint8 * b);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	268 * \brief Set an additional alpha value used in blit operations.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	269 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	270 * \param surface The surface to update.
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	271 * \param alpha The alpha value multiplied into blit operations.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	272 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	273 * \return 0 on success, or -1 if the surface is not valid.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	274 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	275 * \sa SDL_GetSurfaceAlphaMod()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277 extern DECLSPEC int SDLCALL SDL_SetSurfaceAlphaMod(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278 Uint8 alpha);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	281 * \brief Get the additional alpha value used in blit operations.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	282 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	283 * \param surface The surface to query.
4971 158bb5752974 Updated headers to match wiki documentation Sam Lantinga <slouken@libsdl.org> parents: 4949 diff changeset	284 * \param alpha A pointer filled in with the current alpha value.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	285 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	286 * \return 0 on success, or -1 if the surface is not valid.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	287 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	288 * \sa SDL_SetSurfaceAlphaMod()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 extern DECLSPEC int SDLCALL SDL_GetSurfaceAlphaMod(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 Uint8 * alpha);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	294 * \brief Set the blend mode used for blit operations.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	295 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	296 * \param surface The surface to update.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	297 * \param blendMode ::SDL_BlendMode to use for blit blending.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	298 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	299 * \return 0 on success, or -1 if the parameters are not valid.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	300 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	301 * \sa SDL_GetSurfaceBlendMode()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 extern DECLSPEC int SDLCALL SDL_SetSurfaceBlendMode(SDL_Surface * surface,
4929 aa8888658021 Use the enumerated type for blend and scale mode instead of int Sam Lantinga <slouken@libsdl.org> parents: 4424 diff changeset	304 SDL_BlendMode blendMode);
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	307 * \brief Get the blend mode used for blit operations.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	308 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	309 * \param surface The surface to query.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	310 * \param blendMode A pointer filled in with the current blend mode.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	311 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	312 * \return 0 on success, or -1 if the surface is not valid.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	313 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	314 * \sa SDL_SetSurfaceBlendMode()
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 extern DECLSPEC int SDLCALL SDL_GetSurfaceBlendMode(SDL_Surface * surface,
4929 aa8888658021 Use the enumerated type for blend and scale mode instead of int Sam Lantinga <slouken@libsdl.org> parents: 4424 diff changeset	317 SDL_BlendMode *blendMode);
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	320 * Sets the clipping rectangle for the destination surface in a blit.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	321 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	322 * If the clip rectangle is NULL, clipping will be disabled.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	323 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	324 * If the clip rectangle doesn't intersect the surface, the function will
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	325 * return SDL_FALSE and blits will be completely clipped. Otherwise the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	326 * function returns SDL_TRUE and blits to the surface will be clipped to
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	327 * the intersection of the surface area and the clipping rectangle.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	328 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	329 * Note that blits are automatically clipped to the edges of the source
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	330 * and destination surfaces.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	331 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	332 extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 const SDL_Rect * rect);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	335 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	336 * Gets the clipping rectangle for the destination surface in a blit.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	337 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	338 * \c rect must be a pointer to a valid rectangle which will be filled
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	339 * with the correct values.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface * surface,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	342 SDL_Rect * rect);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	344 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	345 * Creates a new surface of the specified format, and then copies and maps
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	346 * the given surface to it so the blit of the converted surface will be as
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	347 * fast as possible. If this function fails, it returns NULL.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	348 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	349 * The \c flags parameter is passed to SDL_CreateRGBSurface() and has those
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	350 * semantics. You can also pass ::SDL_RLEACCEL in the flags parameter and
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	351 * SDL will try to RLE accelerate colorkey and alpha blits in the resulting
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	352 * surface.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	354 extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	355 (SDL_Surface * src, SDL_PixelFormat * fmt, Uint32 flags);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	357 /**
3434 147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	358 * \brief Copy a block of pixels of one format to another format
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	359 */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	360 extern DECLSPEC int SDLCALL SDL_ConvertPixels(int width, int height,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	361 Uint32 src_format,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	362 const void * src, int src_pitch,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	363 Uint32 dst_format,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	364 void * dst, int dst_pitch);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	365
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3407 diff changeset	366 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	367 * Performs a fast fill of the given rectangle with \c color.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	368 *
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3434 diff changeset	369 * If \c rect is NULL, the whole surface will be filled with \c color.
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	370 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	371 * The color should be a pixel of the format used by the surface, and
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	372 * can be generated by the SDL_MapRGB() function.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	373 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	374 * \return 0 on success, or -1 on error.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	376 extern DECLSPEC int SDLCALL SDL_FillRect
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3434 diff changeset	377 (SDL_Surface * dst, const SDL_Rect * rect, Uint32 color);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3434 diff changeset	378 extern DECLSPEC int SDLCALL SDL_FillRects
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3434 diff changeset	379 (SDL_Surface * dst, const SDL_Rect ** rects, int count, Uint32 color);
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	381 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	382 * Performs a fast blit from the source surface to the destination surface.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	383 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	384 * This assumes that the source and destination rectangles are
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	385 * the same size. If either \c srcrect or \c dstrect are NULL, the entire
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	386 * surface (\c src or \c dst) is copied. The final blit rectangles are saved
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	387 * in \c srcrect and \c dstrect after all clipping is performed.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	388 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	389 * \return If the blit is successful, it returns 0, otherwise it returns -1.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	390 *
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	391 * The blit function should not be called on a locked surface.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392 *
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	393 * The blit semantics for surfaces with and without alpha and colorkey
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	394 * are defined as follows:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	395 * \verbatim
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	396 RGBA->RGB:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	397 SDL_SRCALPHA set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	398 alpha-blend (using alpha-channel).
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	399 SDL_SRCCOLORKEY ignored.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	400 SDL_SRCALPHA not set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	401 copy RGB.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	402 if SDL_SRCCOLORKEY set, only copy the pixels matching the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	403 RGB values of the source colour key, ignoring alpha in the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	404 comparison.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	405
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	406 RGB->RGBA:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	407 SDL_SRCALPHA set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	408 alpha-blend (using the source per-surface alpha value);
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	409 set destination alpha to opaque.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	410 SDL_SRCALPHA not set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	411 copy RGB, set destination alpha to source per-surface alpha value.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	412 both:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	413 if SDL_SRCCOLORKEY set, only copy the pixels matching the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	414 source colour key.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	415
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	416 RGBA->RGBA:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	417 SDL_SRCALPHA set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	418 alpha-blend (using the source alpha channel) the RGB values;
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	419 leave destination alpha untouched. [Note: is this correct?]
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	420 SDL_SRCCOLORKEY ignored.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	421 SDL_SRCALPHA not set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	422 copy all of RGBA to the destination.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	423 if SDL_SRCCOLORKEY set, only copy the pixels matching the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	424 RGB values of the source colour key, ignoring alpha in the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	425 comparison.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	426
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	427 RGB->RGB:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	428 SDL_SRCALPHA set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	429 alpha-blend (using the source per-surface alpha value).
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	430 SDL_SRCALPHA not set:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	431 copy RGB.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	432 both:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	433 if SDL_SRCCOLORKEY set, only copy the pixels matching the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	434 source colour key.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	435 \endverbatim
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	436 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	437 * If either of the surfaces were in video memory, and the blit returns -2,
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	438 * the video memory was lost, so it should be reloaded with artwork and
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	439 * re-blitted:
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	440 * @code
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	441 * while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) {
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	442 * while ( SDL_LockSurface(image) < 0 )
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	443 * Sleep(10);
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	444 * -- Write image pixels to image->pixels --
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	445 * SDL_UnlockSurface(image);
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	446 * }
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	447 * @endcode
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	448 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	449 * This happens under DirectX 5.0 when the system switches away from your
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	450 * fullscreen application. The lock will also fail until you have access
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	451 * to the video memory again.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	452 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	453 * You should call SDL_BlitSurface() unless you know exactly how SDL
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	454 * blitting works internally and how to use the other blit functions.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 #define SDL_BlitSurface SDL_UpperBlit
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	458 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	459 * This is the public blit function, SDL_BlitSurface(), and it performs
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	460 * rectangle validation and clipping before passing it to SDL_LowerBlit()
710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	461 */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	462 extern DECLSPEC int SDLCALL SDL_UpperBlit
4949 68da5a234bba The source rectangle isn't modified in SDL_UpperBlit Sam Lantinga <slouken@libsdl.org> parents: 4929 diff changeset	463 (SDL_Surface * src, const SDL_Rect * srcrect,
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 SDL_Surface * dst, SDL_Rect * dstrect);
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	465
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	466 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	467 * This is a semi-private blit function and it performs low-level surface
3341 710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	468 * blitting only.
710139a1692d Fixed bug #826 Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	469 */
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 extern DECLSPEC int SDLCALL SDL_LowerBlit
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 (SDL_Surface * src, SDL_Rect * srcrect,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 SDL_Surface * dst, SDL_Rect * dstrect);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	475 * \brief Perform a fast, low quality, stretch blit between two surfaces of the
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	476 * same pixel format.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	477 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3341 diff changeset	478 * \note This function uses a static buffer, and is not thread-safe.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	479 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface * src,
2828 7e5ff6cd05bf Added very slow software scaling to the X11 renderer Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	481 const SDL_Rect * srcrect,
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	482 SDL_Surface * dst,
2828 7e5ff6cd05bf Added very slow software scaling to the X11 renderer Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	483 const SDL_Rect * dstrect);
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	484
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 /* Ends C function definitions when using C++ */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	486 #ifdef __cplusplus
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487 /* INDENT-OFF */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	488 }
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 /* INDENT-ON */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	490 #endif
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 #include "close_code.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 #endif /* _SDL_surface_h */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	495 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate include/SDL_surface.h @ 5230:5d01d426f2ea