include/SDL_video.h
author Sam Lantinga <slouken@libsdl.org>
Mon, 31 Jan 2011 22:44:43 -0800
changeset 5138 da10636e5eca
parent 5123 dc0dfdd58f27
child 5140 e743b9c3f6d6
permissions -rw-r--r--
Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2010 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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/**
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 *  \file SDL_video.h
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 *  
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 *  Header file for SDL video functions.
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 */
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#ifndef _SDL_video_h
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#define _SDL_video_h
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#include "SDL_stdinc.h"
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#include "SDL_pixels.h"
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#include "SDL_rect.h"
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#include "SDL_blendmode.h"
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#include "SDL_surface.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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/* *INDENT-OFF* */
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extern "C" {
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/* *INDENT-ON* */
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#endif
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/**
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 *  \brief  The structure that defines a display mode
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 *  
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 *  \sa SDL_GetNumDisplayModes()
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 *  \sa SDL_GetDisplayMode()
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 *  \sa SDL_GetDesktopDisplayMode()
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 *  \sa SDL_GetCurrentDisplayMode()
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 *  \sa SDL_GetClosestDisplayMode()
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 *  \sa SDL_SetWindowDisplayMode()
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 *  \sa SDL_GetWindowDisplayMode()
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 */
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typedef struct
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{
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    Uint32 format;              /**< pixel format */
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    int w;                      /**< width */
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    int h;                      /**< height */
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    int refresh_rate;           /**< refresh rate (or zero for unspecified) */
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    void *driverdata;           /**< driver-specific data, initialize to 0 */
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} SDL_DisplayMode;
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/**
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 *  \brief The type used to identify a window
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 *  
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 *  \sa SDL_CreateWindow()
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 *  \sa SDL_CreateWindowFrom()
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 *  \sa SDL_DestroyWindow()
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 *  \sa SDL_GetWindowData()
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 *  \sa SDL_GetWindowFlags()
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 *  \sa SDL_GetWindowGrab()
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 *  \sa SDL_GetWindowPosition()
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 *  \sa SDL_GetWindowSize()
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 *  \sa SDL_GetWindowTitle()
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 *  \sa SDL_HideWindow()
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 *  \sa SDL_MaximizeWindow()
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 *  \sa SDL_MinimizeWindow()
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 *  \sa SDL_RaiseWindow()
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 *  \sa SDL_RestoreWindow()
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 *  \sa SDL_SetWindowData()
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 *  \sa SDL_SetWindowFullscreen()
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 *  \sa SDL_SetWindowGrab()
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 *  \sa SDL_SetWindowIcon()
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 *  \sa SDL_SetWindowPosition()
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 *  \sa SDL_SetWindowSize()
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 *  \sa SDL_SetWindowTitle()
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 *  \sa SDL_ShowWindow()
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 */
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typedef struct SDL_Window SDL_Window;
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/**
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 *  \brief The flags on a window
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 *  
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 *  \sa SDL_GetWindowFlags()
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 */
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typedef enum
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{
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    SDL_WINDOW_FULLSCREEN = 0x00000001,         /**< fullscreen window, implies borderless */
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    SDL_WINDOW_OPENGL = 0x00000002,             /**< window usable with OpenGL context */
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    SDL_WINDOW_SHOWN = 0x00000004,              /**< window is visible */
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    SDL_WINDOW_BORDERLESS = 0x00000008,         /**< no window decoration */
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    SDL_WINDOW_RESIZABLE = 0x00000010,          /**< window can be resized */
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    SDL_WINDOW_MINIMIZED = 0x00000020,          /**< window is minimized */
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    SDL_WINDOW_MAXIMIZED = 0x00000040,          /**< window is maximized */
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    SDL_WINDOW_INPUT_GRABBED = 0x00000100,      /**< window has grabbed input focus */
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    SDL_WINDOW_INPUT_FOCUS = 0x00000200,        /**< window has input focus */
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    SDL_WINDOW_MOUSE_FOCUS = 0x00000400,        /**< window has mouse focus */
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    SDL_WINDOW_FOREIGN = 0x00000800             /**< window not created by SDL */
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} SDL_WindowFlags;
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/**
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 *  \brief Used to indicate that you don't care what the window position is.
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 */
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#define SDL_WINDOWPOS_UNDEFINED 0x7FFFFFF
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/**
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 *  \brief Used to indicate that the window position should be centered.
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 */
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#define SDL_WINDOWPOS_CENTERED  0x7FFFFFE
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/**
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 *  \brief Event subtype for window events
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 */
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typedef enum
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{
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    SDL_WINDOWEVENT_NONE,           /**< Never used */
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    SDL_WINDOWEVENT_SHOWN,          /**< Window has been shown */
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    SDL_WINDOWEVENT_HIDDEN,         /**< Window has been hidden */
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    SDL_WINDOWEVENT_EXPOSED,        /**< Window has been exposed and should be 
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                                         redrawn */
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    SDL_WINDOWEVENT_MOVED,          /**< Window has been moved to data1, data2 
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                                     */
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    SDL_WINDOWEVENT_RESIZED,        /**< Window size changed to data1xdata2 */
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    SDL_WINDOWEVENT_MINIMIZED,      /**< Window has been minimized */
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    SDL_WINDOWEVENT_MAXIMIZED,      /**< Window has been maximized */
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    SDL_WINDOWEVENT_RESTORED,       /**< Window has been restored to normal size
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                                         and position */
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    SDL_WINDOWEVENT_ENTER,          /**< Window has gained mouse focus */
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    SDL_WINDOWEVENT_LEAVE,          /**< Window has lost mouse focus */
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    SDL_WINDOWEVENT_FOCUS_GAINED,   /**< Window has gained keyboard focus */
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    SDL_WINDOWEVENT_FOCUS_LOST,     /**< Window has lost keyboard focus */
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    SDL_WINDOWEVENT_CLOSE           /**< The window manager requests that the 
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                                         window be closed */
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} SDL_WindowEventID;
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/**
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 *  \brief Flags used when creating a rendering context
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 */
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typedef enum
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{
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    SDL_RENDERER_SINGLEBUFFER = 0x00000001,     /**< Render directly to the 
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                                                     window, if possible */
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    SDL_RENDERER_PRESENTCOPY = 0x00000002,      /**< Present uses a copy from 
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                                                     back buffer to the front 
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                                                     buffer */
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    SDL_RENDERER_PRESENTFLIP2 = 0x00000004,     /**< Present uses a flip, 
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                                                     swapping back buffer and 
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                                                     front buffer */
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    SDL_RENDERER_PRESENTFLIP3 = 0x00000008,     /**< Present uses a flip, 
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                                                     rotating between two back 
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                                                     buffers and a front buffer
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                                                 */
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    SDL_RENDERER_PRESENTDISCARD = 0x00000010,   /**< Present leaves the contents
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                                                     of the backbuffer undefined
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                                                 */
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    SDL_RENDERER_PRESENTVSYNC = 0x00000020,     /**< Present is synchronized 
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                                                     with the refresh rate */
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    SDL_RENDERER_ACCELERATED = 0x00000040       /**< The renderer uses hardware 
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                                                     acceleration */
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    } SDL_RendererFlags;
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/**
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 *  \brief Information on the capabilities of a render driver or context.
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 */
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typedef struct SDL_RendererInfo
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{
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    const char *name;           /**< The name of the renderer */
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    Uint32 flags;               /**< Supported ::SDL_RendererFlags */
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    Uint32 mod_modes;           /**< A mask of supported channel modulation */
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    Uint32 blend_modes;         /**< A mask of supported blend modes */
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    Uint32 num_texture_formats; /**< The number of available texture formats */
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    Uint32 texture_formats[50]; /**< The available texture formats */
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    int max_texture_width;      /**< The maximimum texture width */
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    int max_texture_height;     /**< The maximimum texture height */
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} SDL_RendererInfo;
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/**
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 *  \brief The access pattern allowed for a texture.
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 */
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typedef enum
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{
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    SDL_TEXTUREACCESS_STATIC,    /**< Changes rarely, not lockable */
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    SDL_TEXTUREACCESS_STREAMING  /**< Changes frequently, lockable */
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} SDL_TextureAccess;
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/**
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 *  \brief The texture channel modulation used in SDL_RenderCopy().
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 */
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typedef enum
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{
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    SDL_TEXTUREMODULATE_NONE = 0x00000000,     /**< No modulation */
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    SDL_TEXTUREMODULATE_COLOR = 0x00000001,    /**< srcC = srcC * color */
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    SDL_TEXTUREMODULATE_ALPHA = 0x00000002     /**< srcA = srcA * alpha */
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} SDL_TextureModulate;
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/**
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 *  \brief An efficient driver-specific representation of pixel data
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 */
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struct SDL_Texture;
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typedef struct SDL_Texture SDL_Texture;
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/**
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 *  \brief An opaque handle to an OpenGL context.
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 */
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typedef void *SDL_GLContext;
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/**
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 *  \brief OpenGL configuration attributes
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 */
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typedef enum
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{
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    SDL_GL_RED_SIZE,
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    SDL_GL_GREEN_SIZE,
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    SDL_GL_BLUE_SIZE,
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    SDL_GL_ALPHA_SIZE,
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    SDL_GL_BUFFER_SIZE,
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    SDL_GL_DOUBLEBUFFER,
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    SDL_GL_DEPTH_SIZE,
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    SDL_GL_STENCIL_SIZE,
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    SDL_GL_ACCUM_RED_SIZE,
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    SDL_GL_ACCUM_GREEN_SIZE,
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    SDL_GL_ACCUM_BLUE_SIZE,
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    SDL_GL_ACCUM_ALPHA_SIZE,
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    SDL_GL_STEREO,
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    SDL_GL_MULTISAMPLEBUFFERS,
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    SDL_GL_MULTISAMPLESAMPLES,
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    SDL_GL_ACCELERATED_VISUAL,
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    SDL_GL_RETAINED_BACKING,
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    SDL_GL_CONTEXT_MAJOR_VERSION,
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    SDL_GL_CONTEXT_MINOR_VERSION
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} SDL_GLattr;
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/* Function prototypes */
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/**
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 *  \brief Get the number of video drivers compiled into SDL
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 *  
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 *  \sa SDL_GetVideoDriver()
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 */
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extern DECLSPEC int SDLCALL SDL_GetNumVideoDrivers(void);
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/**
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 *  \brief Get the name of a built in video driver.
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 *  
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 *  \note The video drivers are presented in the order in which they are
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 *        normally checked during initialization.
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 *  
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 *  \sa SDL_GetNumVideoDrivers()
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 */
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extern DECLSPEC const char *SDLCALL SDL_GetVideoDriver(int index);
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/**
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 *  \brief Initialize the video subsystem, optionally specifying a video driver.
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 *  
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 *  \param driver_name Initialize a specific driver by name, or NULL for the 
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 *                     default video driver.
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 *  
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 *  \return 0 on success, -1 on error
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 *  
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 *  This function initializes the video subsystem; setting up a connection
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 *  to the window manager, etc, and determines the available display modes
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 *  and pixel formats, but does not initialize a window or graphics mode.
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 *  
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 *  \sa SDL_VideoQuit()
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 */
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extern DECLSPEC int SDLCALL SDL_VideoInit(const char *driver_name);
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/**
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 *  \brief Shuts down the video subsystem.
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 *  
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 *  This function closes all windows, and restores the original video mode.
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 *  
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 *  \sa SDL_VideoInit()
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 */
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extern DECLSPEC void SDLCALL SDL_VideoQuit(void);
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/**
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 *  \brief Returns the name of the currently initialized video driver.
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 *  
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 *  \return The name of the current video driver or NULL if no driver
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 *          has been initialized
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 *  
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 *  \sa SDL_GetNumVideoDrivers()
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 *  \sa SDL_GetVideoDriver()
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 */
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extern DECLSPEC const char *SDLCALL SDL_GetCurrentVideoDriver(void);
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/**
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 *  \brief Returns the number of available video displays.
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 *  
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 *  \sa SDL_GetDisplayBounds()
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 *  \sa SDL_SelectVideoDisplay()
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 */
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extern DECLSPEC int SDLCALL SDL_GetNumVideoDisplays(void);
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/**
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 *  \brief Get the desktop area represented by a display, with the primary
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 *         display located at 0,0
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 *  
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 *  \return 0 on success, or -1 if the index is out of range.
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 *  
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 *  \sa SDL_GetNumVideoDisplays()
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 */
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extern DECLSPEC int SDLCALL SDL_GetDisplayBounds(int index, SDL_Rect * rect);
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/**
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 *  \brief Set the index of the currently selected display.
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 *  
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 *  \return 0 on success, or -1 if the index is out of range.
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 *  
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 *  \sa SDL_GetNumVideoDisplays()
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 *  \sa SDL_GetCurrentVideoDisplay()
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 */
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extern DECLSPEC int SDLCALL SDL_SelectVideoDisplay(int index);
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/**
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 *  \brief Get the index of the currently selected display.
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 *  
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 *  \return The index of the currently selected display.
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 *  
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 *  \sa SDL_GetNumVideoDisplays()
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 *  \sa SDL_SelectVideoDisplay()
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 */
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extern DECLSPEC int SDLCALL SDL_GetCurrentVideoDisplay(void);
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/**
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 *  \brief Returns the number of available display modes for the current display.
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 *  
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 *  \sa SDL_GetDisplayMode()
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 */
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extern DECLSPEC int SDLCALL SDL_GetNumDisplayModes(void);
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/**
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 *  \brief Fill in information about a specific display mode.
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 *  
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 *  \note The display modes are sorted in this priority:
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 *        \li bits per pixel -> more colors to fewer colors
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 *        \li width -> largest to smallest
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 *        \li height -> largest to smallest
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 *        \li refresh rate -> highest to lowest
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 *  
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 *  \sa SDL_GetNumDisplayModes()
slouken@0
   364
 */
slouken@1967
   365
extern DECLSPEC int SDLCALL SDL_GetDisplayMode(int index,
slouken@1967
   366
                                               SDL_DisplayMode * mode);
slouken@0
   367
slouken@1895
   368
/**
slouken@3407
   369
 *  \brief Fill in information about the desktop display mode for the current 
slouken@3407
   370
 *         display.
slouken@1895
   371
 */
slouken@1967
   372
extern DECLSPEC int SDLCALL SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode);
slouken@1895
   373
slouken@1895
   374
/**
slouken@3407
   375
 *  \brief Fill in information about the current display mode.
slouken@1895
   376
 */
slouken@1967
   377
extern DECLSPEC int SDLCALL SDL_GetCurrentDisplayMode(SDL_DisplayMode * mode);
slouken@1895
   378
slouken@3400
   379
slouken@1895
   380
/**
slouken@3407
   381
 *  \brief Get the closest match to the requested display mode.
slouken@3407
   382
 *  
slouken@3407
   383
 *  \param mode The desired display mode
slouken@3407
   384
 *  \param closest A pointer to a display mode to be filled in with the closest 
slouken@3407
   385
 *                 match of the available display modes.
slouken@3407
   386
 *  
slouken@3407
   387
 *  \return The passed in value \c closest, or NULL if no matching video mode 
slouken@3407
   388
 *          was available.
slouken@3407
   389
 *  
slouken@3407
   390
 *  The available display modes are scanned, and \c closest is filled in with the
slouken@3407
   391
 *  closest mode matching the requested mode and returned.  The mode format and 
slouken@3407
   392
 *  refresh_rate default to the desktop mode if they are 0.  The modes are 
slouken@3407
   393
 *  scanned with size being first priority, format being second priority, and 
slouken@3407
   394
 *  finally checking the refresh_rate.  If all the available modes are too 
slouken@3407
   395
 *  small, then NULL is returned.
slouken@3407
   396
 *  
slouken@3407
   397
 *  \sa SDL_GetNumDisplayModes()
slouken@3407
   398
 *  \sa SDL_GetDisplayMode()
slouken@1895
   399
 */
slouken@1895
   400
extern DECLSPEC SDL_DisplayMode *SDLCALL SDL_GetClosestDisplayMode(const
slouken@1895
   401
                                                                   SDL_DisplayMode
slouken@1895
   402
                                                                   * mode,
slouken@1895
   403
                                                                   SDL_DisplayMode
slouken@1895
   404
                                                                   * closest);
slouken@1895
   405
slouken@1895
   406
/**
slouken@3407
   407
 *  \brief Set the display mode used when a fullscreen window is visible
slouken@3500
   408
 *         on the currently selected display.  By default the window's
slouken@3500
   409
 *         dimensions and the desktop format and refresh rate are used.
slouken@3407
   410
 *  
slouken@3500
   411
 *  \param mode The mode to use, or NULL for the default mode.
slouken@3407
   412
 *  
slouken@3407
   413
 *  \return 0 on success, or -1 if setting the display mode failed.
slouken@3407
   414
 *  
slouken@3522
   415
 *  \sa SDL_GetWindowDisplayMode()
slouken@3407
   416
 *  \sa SDL_SetWindowFullscreen()
slouken@0
   417
 */
slouken@3685
   418
extern DECLSPEC int SDLCALL SDL_SetWindowDisplayMode(SDL_Window * window,
slouken@3500
   419
                                                     const SDL_DisplayMode
slouken@1895
   420
                                                         * mode);
slouken@0
   421
slouken@1895
   422
/**
slouken@3407
   423
 *  \brief Fill in information about the display mode used when a fullscreen
slouken@3407
   424
 *         window is visible on the currently selected display.
slouken@3522
   425
 *
slouken@3522
   426
 *  \sa SDL_SetWindowDisplayMode()
slouken@3522
   427
 *  \sa SDL_SetWindowFullscreen()
slouken@0
   428
 */
slouken@3685
   429
extern DECLSPEC int SDLCALL SDL_GetWindowDisplayMode(SDL_Window * window,
slouken@3500
   430
                                                     SDL_DisplayMode * mode);
slouken@0
   431
slouken@1895
   432
/**
slouken@3407
   433
 *  \brief Set the palette entries for indexed display modes.
slouken@3407
   434
 *  
slouken@3407
   435
 *  \return 0 on success, or -1 if the display mode isn't palettized or the 
slouken@3407
   436
 *          colors couldn't be set.
slouken@0
   437
 */
slouken@1895
   438
extern DECLSPEC int SDLCALL SDL_SetDisplayPalette(const SDL_Color * colors,
slouken@1895
   439
                                                  int firstcolor,
slouken@1895
   440
                                                  int ncolors);
slouken@0
   441
slouken@1895
   442
/**
slouken@3407
   443
 *  \brief Gets the palette entries for indexed display modes.
slouken@3407
   444
 *  
slouken@3407
   445
 *  \return 0 on success, or -1 if the display mode isn't palettized
slouken@1895
   446
 */
slouken@1895
   447
extern DECLSPEC int SDLCALL SDL_GetDisplayPalette(SDL_Color * colors,
slouken@1895
   448
                                                  int firstcolor,
slouken@1895
   449
                                                  int ncolors);
slouken@1895
   450
slouken@1895
   451
/**
slouken@3407
   452
 *  \brief Set the gamma correction for each of the color channels on the 
slouken@3407
   453
 *         currently selected display.
slouken@3407
   454
 *  
slouken@3407
   455
 *  \return 0 on success, or -1 if setting the gamma isn't supported.
slouken@3407
   456
 *  
slouken@3407
   457
 *  \sa SDL_SetGammaRamp()
slouken@0
   458
 */
slouken@337
   459
extern DECLSPEC int SDLCALL SDL_SetGamma(float red, float green, float blue);
slouken@0
   460
slouken@1895
   461
/**
slouken@3407
   462
 *  \brief Set the gamma ramp for the currently selected display.
slouken@3407
   463
 *  
slouken@3407
   464
 *  \param red The translation table for the red channel, or NULL.
slouken@3407
   465
 *  \param green The translation table for the green channel, or NULL.
slouken@3407
   466
 *  \param blue The translation table for the blue channel, or NULL.
slouken@3407
   467
 *  
slouken@3407
   468
 *  \return 0 on success, or -1 if gamma ramps are unsupported.
slouken@3407
   469
 *  
slouken@3407
   470
 *  Set the gamma translation table for the red, green, and blue channels
slouken@3407
   471
 *  of the video hardware.  Each table is an array of 256 16-bit quantities,
slouken@3407
   472
 *  representing a mapping between the input and output for that channel.
slouken@3407
   473
 *  The input is the index into the array, and the output is the 16-bit
slouken@3407
   474
 *  gamma value at that index, scaled to the output color precision.
slouken@3407
   475
 *  
slouken@3407
   476
 *  \sa SDL_GetGammaRamp()
slouken@0
   477
 */
slouken@1895
   478
extern DECLSPEC int SDLCALL SDL_SetGammaRamp(const Uint16 * red,
slouken@1895
   479
                                             const Uint16 * green,
slouken@1895
   480
                                             const Uint16 * blue);
slouken@0
   481
slouken@1895
   482
/**
slouken@3407
   483
 *  \brief Get the gamma ramp for the currently selected display.
slouken@3407
   484
 *  
slouken@3407
   485
 *  \param red   A pointer to a 256 element array of 16-bit quantities to hold 
slouken@3407
   486
 *               the translation table for the red channel, or NULL.
slouken@3407
   487
 *  \param green A pointer to a 256 element array of 16-bit quantities to hold 
slouken@3407
   488
 *               the translation table for the green channel, or NULL.
slouken@3407
   489
 *  \param blue  A pointer to a 256 element array of 16-bit quantities to hold 
slouken@3407
   490
 *               the translation table for the blue channel, or NULL.
slouken@3407
   491
 *   
slouken@3407
   492
 *  \return 0 on success, or -1 if gamma ramps are unsupported.
slouken@3407
   493
 *  
slouken@3407
   494
 *  \sa SDL_SetGammaRamp()
slouken@0
   495
 */
slouken@1895
   496
extern DECLSPEC int SDLCALL SDL_GetGammaRamp(Uint16 * red, Uint16 * green,
slouken@1895
   497
                                             Uint16 * blue);
slouken@0
   498
slouken@1895
   499
slouken@1895
   500
/**
slouken@3407
   501
 *  \brief Create a window with the specified position, dimensions, and flags.
slouken@3407
   502
 *  
slouken@3407
   503
 *  \param title The title of the window, in UTF-8 encoding.
slouken@3407
   504
 *  \param x     The x position of the window, ::SDL_WINDOWPOS_CENTERED, or 
slouken@3407
   505
 *               ::SDL_WINDOWPOS_UNDEFINED.
slouken@3407
   506
 *  \param y     The y position of the window, ::SDL_WINDOWPOS_CENTERED, or 
slouken@3407
   507
 *               ::SDL_WINDOWPOS_UNDEFINED.
slouken@3407
   508
 *  \param w     The width of the window.
slouken@3407
   509
 *  \param h     The height of the window.
slouken@3407
   510
 *  \param flags The flags for the window, a mask of any of the following: 
slouken@3407
   511
 *               ::SDL_WINDOW_FULLSCREEN, ::SDL_WINDOW_OPENGL, 
slouken@3407
   512
 *               ::SDL_WINDOW_SHOWN,      ::SDL_WINDOW_BORDERLESS, 
slouken@3407
   513
 *               ::SDL_WINDOW_RESIZABLE,  ::SDL_WINDOW_MAXIMIZED, 
slouken@3407
   514
 *               ::SDL_WINDOW_MINIMIZED,  ::SDL_WINDOW_INPUT_GRABBED.
slouken@3407
   515
 *  
slouken@3407
   516
 *  \return The id of the window created, or zero if window creation failed.
slouken@3407
   517
 *  
slouken@3407
   518
 *  \sa SDL_DestroyWindow()
slouken@0
   519
 */
slouken@3685
   520
extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindow(const char *title,
slouken@1895
   521
                                                      int x, int y, int w,
slouken@1895
   522
                                                      int h, Uint32 flags);
slouken@0
   523
slouken@1895
   524
/**
slouken@3493
   525
 *  \brief Create an SDL window from an existing native window.
slouken@3407
   526
 *  
slouken@3407
   527
 *  \param data A pointer to driver-dependent window creation data
slouken@3407
   528
 *  
slouken@3407
   529
 *  \return The id of the window created, or zero if window creation failed.
slouken@3407
   530
 *  
slouken@3407
   531
 *  \sa SDL_DestroyWindow()
slouken@0
   532
 */
slouken@3685
   533
extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindowFrom(const void *data);
slouken@3685
   534
slouken@3685
   535
/**
slouken@4883
   536
 *  \brief Get the numeric ID of a window, for logging purposes.
slouken@3685
   537
 */
slouken@3685
   538
extern DECLSPEC Uint32 SDLCALL SDL_GetWindowID(SDL_Window * window);
slouken@3685
   539
slouken@3685
   540
/**
slouken@3685
   541
 *  \brief Get a window from a stored ID, or NULL if it doesn't exist.
slouken@3685
   542
 */
slouken@3685
   543
extern DECLSPEC SDL_Window * SDLCALL SDL_GetWindowFromID(Uint32 id);
slouken@1895
   544
slouken@1895
   545
/**
slouken@3407
   546
 *  \brief Get the window flags.
slouken@1895
   547
 */
slouken@3685
   548
extern DECLSPEC Uint32 SDLCALL SDL_GetWindowFlags(SDL_Window * window);
slouken@1895
   549
slouken@1895
   550
/**
slouken@4883
   551
 *  \brief Set the title of a window, in UTF-8 format.
slouken@3407
   552
 *  
slouken@3407
   553
 *  \sa SDL_GetWindowTitle()
slouken@1895
   554
 */
slouken@3685
   555
extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_Window * window,
slouken@1895
   556
                                                const char *title);
slouken@1895
   557
slouken@1895
   558
/**
slouken@4883
   559
 *  \brief Get the title of a window, in UTF-8 format.
slouken@3407
   560
 *  
slouken@3407
   561
 *  \sa SDL_SetWindowTitle()
slouken@1895
   562
 */
slouken@3685
   563
extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_Window * window);
slouken@1895
   564
slouken@1895
   565
/**
slouken@4887
   566
 *  \brief Set the icon for a window.
slouken@3407
   567
 *  
slouken@4887
   568
 *  \param icon The icon for the window.
slouken@1895
   569
 */
slouken@3685
   570
extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Window * window,
slouken@2990
   571
                                               SDL_Surface * icon);
slouken@1895
   572
slouken@1895
   573
/**
slouken@4869
   574
 *  \brief Associate an arbitrary pointer with a window.
slouken@3407
   575
 *  
slouken@3407
   576
 *  \sa SDL_GetWindowData()
slouken@1895
   577
 */
slouken@3685
   578
extern DECLSPEC void SDLCALL SDL_SetWindowData(SDL_Window * window,
slouken@1895
   579
                                               void *userdata);
slouken@1895
   580
slouken@1895
   581
/**
slouken@4883
   582
 *  \brief Retrieve the data pointer associated with a window.
slouken@3407
   583
 *  
slouken@3407
   584
 *  \sa SDL_SetWindowData()
slouken@1895
   585
 */
slouken@3685
   586
extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_Window * window);
slouken@1895
   587
slouken@1895
   588
/**
slouken@4883
   589
 *  \brief Set the position of a window.
slouken@3407
   590
 *  
slouken@3685
   591
 *  \param window The window to reposition.
slouken@3407
   592
 *  \param x        The x coordinate of the window, ::SDL_WINDOWPOS_CENTERED, or
slouken@3407
   593
                    ::SDL_WINDOWPOS_UNDEFINED.
slouken@3407
   594
 *  \param y        The y coordinate of the window, ::SDL_WINDOWPOS_CENTERED, or
slouken@3407
   595
                    ::SDL_WINDOWPOS_UNDEFINED.
slouken@3407
   596
 *  
slouken@3407
   597
 *  \note The window coordinate origin is the upper left of the display.
slouken@3407
   598
 *  
slouken@3407
   599
 *  \sa SDL_GetWindowPosition()
slouken@1895
   600
 */
slouken@3685
   601
extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_Window * window,
slouken@1895
   602
                                                   int x, int y);
slouken@1895
   603
slouken@1895
   604
/**
slouken@4883
   605
 *  \brief Get the position of a window.
slouken@3407
   606
 *  
slouken@3407
   607
 *  \sa SDL_SetWindowPosition()
slouken@1895
   608
 */
slouken@3685
   609
extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_Window * window,
slouken@1895
   610
                                                   int *x, int *y);
slouken@1895
   611
slouken@1895
   612
/**
slouken@4883
   613
 *  \brief Set the size of a window's client area.
slouken@3407
   614
 *  
slouken@3407
   615
 *  \note You can't change the size of a fullscreen window, it automatically
slouken@3407
   616
 *        matches the size of the display mode.
slouken@3407
   617
 *  
slouken@3407
   618
 *  \sa SDL_GetWindowSize()
slouken@1895
   619
 */
slouken@3685
   620
extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_Window * window, int w,
slouken@1895
   621
                                               int h);
slouken@1895
   622
slouken@1895
   623
/**
slouken@4883
   624
 *  \brief Get the size of a window's client area.
slouken@3407
   625
 *  
slouken@3407
   626
 *  \sa SDL_SetWindowSize()
slouken@1895
   627
 */
slouken@3685
   628
extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_Window * window, int *w,
slouken@1895
   629
                                               int *h);
slouken@1895
   630
slouken@1895
   631
/**
slouken@4883
   632
 *  \brief Show a window.
slouken@3407
   633
 *  
slouken@3407
   634
 *  \sa SDL_HideWindow()
slouken@1895
   635
 */
slouken@3685
   636
extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_Window * window);
slouken@1895
   637
slouken@1895
   638
/**
slouken@4883
   639
 *  \brief Hide a window.
slouken@3407
   640
 *  
slouken@3407
   641
 *  \sa SDL_ShowWindow()
slouken@1895
   642
 */
slouken@3685
   643
extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_Window * window);
slouken@1895
   644
slouken@1895
   645
/**
slouken@4883
   646
 *  \brief Raise a window above other windows and set the input focus.
slouken@1895
   647
 */
slouken@3685
   648
extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_Window * window);
slouken@1895
   649
slouken@1895
   650
/**
slouken@4883
   651
 *  \brief Make a window as large as possible.
slouken@3407
   652
 *  
slouken@3407
   653
 *  \sa SDL_RestoreWindow()
slouken@1895
   654
 */
slouken@3685
   655
extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_Window * window);
slouken@1895
   656
slouken@1895
   657
/**
slouken@4883
   658
 *  \brief Minimize a window to an iconic representation.
slouken@3407
   659
 *  
slouken@3407
   660
 *  \sa SDL_RestoreWindow()
slouken@1895
   661
 */
slouken@3685
   662
extern DECLSPEC void SDLCALL SDL_MinimizeWindow(SDL_Window * window);
slouken@1895
   663
slouken@1895
   664
/**
slouken@3407
   665
 *  \brief Restore the size and position of a minimized or maximized window.
slouken@3407
   666
 *  
slouken@3407
   667
 *  \sa SDL_MaximizeWindow()
slouken@3407
   668
 *  \sa SDL_MinimizeWindow()
slouken@1895
   669
 */
slouken@3685
   670
extern DECLSPEC void SDLCALL SDL_RestoreWindow(SDL_Window * window);
slouken@1895
   671
slouken@1895
   672
/**
slouken@4883
   673
 *  \brief Set a window's fullscreen state.
slouken@3407
   674
 *  
slouken@3407
   675
 *  \return 0 on success, or -1 if setting the display mode failed.
slouken@3407
   676
 *  
slouken@3522
   677
 *  \sa SDL_SetWindowDisplayMode()
slouken@3522
   678
 *  \sa SDL_GetWindowDisplayMode()
slouken@1895
   679
 */
slouken@3685
   680
extern DECLSPEC int SDLCALL SDL_SetWindowFullscreen(SDL_Window * window,
slouken@1895
   681
                                                    int fullscreen);
slouken@1895
   682
slouken@1895
   683
/**
slouken@4883
   684
 *  \brief Set a window's input grab mode.
slouken@3407
   685
 *  
slouken@3407
   686
 *  \param mode This is 1 to grab input, and 0 to release input.
slouken@3407
   687
 *  
slouken@3407
   688
 *  \sa SDL_GetWindowGrab()
slouken@1895
   689
 */
slouken@3685
   690
extern DECLSPEC void SDLCALL SDL_SetWindowGrab(SDL_Window * window,
slouken@1895
   691
                                               int mode);
slouken@1895
   692
slouken@1895
   693
/**
slouken@4883
   694
 *  \brief Get a window's input grab mode.
slouken@3407
   695
 *  
slouken@3407
   696
 *  \return This returns 1 if input is grabbed, and 0 otherwise.
slouken@3407
   697
 *  
slouken@3407
   698
 *  \sa SDL_SetWindowGrab()
slouken@1895
   699
 */
slouken@3685
   700
extern DECLSPEC int SDLCALL SDL_GetWindowGrab(SDL_Window * window);
slouken@1895
   701
slouken@1895
   702
/**
slouken@3407
   703
 *  \brief Get driver specific information about a window.
slouken@3407
   704
 *  
slouken@3407
   705
 *  \note Include SDL_syswm.h for the declaration of SDL_SysWMinfo.
slouken@1895
   706
 */
slouken@1895
   707
struct SDL_SysWMinfo;
slouken@3685
   708
extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowWMInfo(SDL_Window * window,
slouken@1895
   709
                                                     struct SDL_SysWMinfo
slouken@1895
   710
                                                     *info);
slouken@1895
   711
slouken@1895
   712
/**
slouken@3407
   713
 *  \brief Destroy a window.
slouken@1895
   714
 */
slouken@3685
   715
extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_Window * window);
slouken@1895
   716
slouken@1895
   717
/**
slouken@3407
   718
 *  \brief Get the number of 2D rendering drivers available for the current 
slouken@3407
   719
 *         display.
slouken@3407
   720
 *  
slouken@3407
   721
 *  A render driver is a set of code that handles rendering and texture
slouken@3407
   722
 *  management on a particular display.  Normally there is only one, but
slouken@3407
   723
 *  some drivers may have several available with different capabilities.
slouken@3407
   724
 *  
slouken@3407
   725
 *  \sa SDL_GetRenderDriverInfo()
slouken@3407
   726
 *  \sa SDL_CreateRenderer()
slouken@1895
   727
 */
slouken@1969
   728
extern DECLSPEC int SDLCALL SDL_GetNumRenderDrivers(void);
slouken@1895
   729
slouken@1895
   730
/**
slouken@3407
   731
 *  \brief Get information about a specific 2D rendering driver for the current 
slouken@3407
   732
 *         display.
slouken@3407
   733
 *  
slouken@3407
   734
 *  \param index The index of the driver to query information about.
slouken@3407
   735
 *  \param info  A pointer to an SDL_RendererInfo struct to be filled with 
slouken@3407
   736
 *               information on the rendering driver.
slouken@3407
   737
 *  
slouken@3407
   738
 *  \return 0 on success, -1 if the index was out of range.
slouken@3407
   739
 *  
slouken@3407
   740
 *  \sa SDL_CreateRenderer()
slouken@1895
   741
 */
slouken@1969
   742
extern DECLSPEC int SDLCALL SDL_GetRenderDriverInfo(int index,
slouken@1969
   743
                                                    SDL_RendererInfo * info);
slouken@1895
   744
slouken@1895
   745
/**
slouken@3407
   746
 *  \brief Create and make active a 2D rendering context for a window.
slouken@3407
   747
 *  
slouken@3685
   748
 *  \param window The window where rendering is displayed.
slouken@3407
   749
 *  \param index    The index of the rendering driver to initialize, or -1 to 
slouken@3407
   750
 *                  initialize the first one supporting the requested flags.
slouken@3407
   751
 *  \param flags    ::SDL_RendererFlags.
slouken@3407
   752
 *  
slouken@3407
   753
 *  \return 0 on success, -1 if there was an error creating the renderer.
slouken@3407
   754
 *  
slouken@3407
   755
 *  \sa SDL_SelectRenderer()
slouken@3407
   756
 *  \sa SDL_GetRendererInfo()
slouken@3407
   757
 *  \sa SDL_DestroyRenderer()
slouken@1895
   758
 */
slouken@3685
   759
extern DECLSPEC int SDLCALL SDL_CreateRenderer(SDL_Window * window,
slouken@1895
   760
                                               int index, Uint32 flags);
slouken@1895
   761
slouken@1895
   762
/**
slouken@3407
   763
 *  \brief Select the rendering context for a particular window.
slouken@3407
   764
 *  
slouken@3407
   765
 *  \return 0 on success, -1 if the selected window doesn't have a
slouken@3407
   766
 *          rendering context.
slouken@1895
   767
 */
slouken@3685
   768
extern DECLSPEC int SDLCALL SDL_SelectRenderer(SDL_Window * window);
slouken@1895
   769
slouken@1895
   770
/**
slouken@3407
   771
 *  \brief Get information about the current rendering context.
slouken@1969
   772
 */
slouken@1969
   773
extern DECLSPEC int SDLCALL SDL_GetRendererInfo(SDL_RendererInfo * info);
slouken@1969
   774
slouken@1969
   775
/**
slouken@3407
   776
 *  \brief Create a texture for the current rendering context.
slouken@3407
   777
 *  
slouken@3407
   778
 *  \param format The format of the texture.
slouken@3407
   779
 *  \param access One of the enumerated values in ::SDL_TextureAccess.
slouken@3407
   780
 *  \param w      The width of the texture in pixels.
slouken@3407
   781
 *  \param h      The height of the texture in pixels.
slouken@3407
   782
 *  
slouken@3407
   783
 *  \return The created texture is returned, or 0 if no rendering context was 
slouken@3407
   784
 *          active,  the format was unsupported, or the width or height were out
slouken@3407
   785
 *          of range.
slouken@3407
   786
 *  
slouken@3407
   787
 *  \sa SDL_QueryTexture()
slouken@3407
   788
 *  \sa SDL_DestroyTexture()
slouken@1895
   789
 */
slouken@3685
   790
extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTexture(Uint32 format,
slouken@1895
   791
                                                        int access, int w,
slouken@1895
   792
                                                        int h);
slouken@1895
   793
slouken@1895
   794
/**
slouken@3407
   795
 *  \brief Create a texture from an existing surface.
slouken@3407
   796
 *  
slouken@3407
   797
 *  \param format The format of the texture, or 0 to pick an appropriate format.
slouken@3407
   798
 *  \param surface The surface containing pixel data used to fill the texture.
slouken@3407
   799
 *  
slouken@3407
   800
 *  \return The created texture is returned, or 0 if no rendering context was 
slouken@3407
   801
 *          active,  the format was unsupported, or the surface width or height 
slouken@3407
   802
 *          were out of range.
slouken@3407
   803
 *  
slouken@3407
   804
 *  \note The surface is not modified or freed by this function.
slouken@3407
   805
 *  
slouken@3407
   806
 *  \sa SDL_QueryTexture()
slouken@3407
   807
 *  \sa SDL_DestroyTexture()
slouken@1895
   808
 */
slouken@3685
   809
extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTextureFromSurface(Uint32
slouken@1895
   810
                                                                   format,
slouken@1895
   811
                                                                   SDL_Surface
slouken@1895
   812
                                                                   * surface);
slouken@1895
   813
slouken@1895
   814
/**
slouken@3407
   815
 *  \brief Query the attributes of a texture
slouken@3407
   816
 *  
slouken@3685
   817
 *  \param texture A texture to be queried.
slouken@3407
   818
 *  \param format  A pointer filled in with the raw format of the texture.  The 
slouken@3407
   819
 *                 actual format may differ, but pixel transfers will use this 
slouken@3407
   820
 *                 format.
slouken@3407
   821
 *  \param access  A pointer filled in with the actual access to the texture.
slouken@3407
   822
 *  \param w       A pointer filled in with the width of the texture in pixels.
slouken@3407
   823
 *  \param h       A pointer filled in with the height of the texture in pixels.
slouken@3407
   824
 *  
slouken@3407
   825
 *  \return 0 on success, or -1 if the texture is not valid.
slouken@1895
   826
 */
slouken@3685
   827
extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_Texture * texture,
slouken@1895
   828
                                             Uint32 * format, int *access,
slouken@1895
   829
                                             int *w, int *h);
slouken@1895
   830
slouken@1895
   831
/**
slouken@3407
   832
 *  \brief Query the pixels of a texture, if the texture does not need to be 
slouken@3407
   833
 *         locked for pixel access.
slouken@3407
   834
 *  
slouken@3685
   835
 *  \param texture A texture to be queried, which was created with 
slouken@3407
   836
 *                   ::SDL_TEXTUREACCESS_STREAMING.
slouken@3407
   837
 *  \param pixels    A pointer filled with a pointer to the pixels for the 
slouken@3407
   838
 *                   texture.
slouken@3407
   839
 *  \param pitch     A pointer filled in with the pitch of the pixel data.
slouken@3407
   840
 *  
slouken@3407
   841
 *  \return 0 on success, or -1 if the texture is not valid, or must be locked 
slouken@3407
   842
 *          for pixel access.
slouken@1895
   843
 */
slouken@3685
   844
extern DECLSPEC int SDLCALL SDL_QueryTexturePixels(SDL_Texture * texture,
slouken@1895
   845
                                                   void **pixels, int *pitch);
slouken@1895
   846
slouken@1895
   847
/**
slouken@3407
   848
 *  \brief Set the color palette of an indexed texture.
slouken@3407
   849
 *  
slouken@3685
   850
 *  \param texture  The texture to update.
slouken@3407
   851
 *  \param colors     The array of RGB color data.
slouken@3407
   852
 *  \param firstcolor The first index to update.
slouken@3407
   853
 *  \param ncolors    The number of palette entries to fill with the color data.
slouken@3407
   854
 *  
slouken@3407
   855
 *  \return 0 on success, or -1 if the texture is not valid or not an indexed 
slouken@3407
   856
 *          texture.
slouken@1895
   857
 */
slouken@3685
   858
extern DECLSPEC int SDLCALL SDL_SetTexturePalette(SDL_Texture * texture,
slouken@1895
   859
                                                  const SDL_Color * colors,
slouken@1895
   860
                                                  int firstcolor,
slouken@1895
   861
                                                  int ncolors);
slouken@1895
   862
slouken@1895
   863
/**
slouken@3407
   864
 *  \brief Get the color palette from an indexed texture if it has one.
slouken@3407
   865
 *  
slouken@3685
   866
 *  \param texture  The texture to update.
slouken@3407
   867
 *  \param colors     The array to fill with RGB color data.
slouken@3407
   868
 *  \param firstcolor The first index to retrieve.
slouken@3407
   869
 *  \param ncolors    The number of palette entries to retrieve.
slouken@3407
   870
 *  
slouken@3407
   871
 *  \return 0 on success, or -1 if the texture is not valid or not an indexed 
slouken@3407
   872
 *          texture.
slouken@1895
   873
 */
slouken@3685
   874
extern DECLSPEC int SDLCALL SDL_GetTexturePalette(SDL_Texture * texture,
slouken@1895
   875
                                                  SDL_Color * colors,
slouken@1895
   876
                                                  int firstcolor,
slouken@1895
   877
                                                  int ncolors);
slouken@1895
   878
slouken@1895
   879
/**
slouken@3407
   880
 *  \brief Set an additional color value used in render copy operations.
slouken@3407
   881
 *  
slouken@3685
   882
 *  \param texture The texture to update.
slouken@4971
   883
 *  \param r       The red color value multiplied into copy operations.
slouken@4971
   884
 *  \param g       The green color value multiplied into copy operations.
slouken@4971
   885
 *  \param b       The blue color value multiplied into copy operations.
slouken@3407
   886
 *  
slouken@3407
   887
 *  \return 0 on success, or -1 if the texture is not valid or color modulation 
slouken@3407
   888
 *          is not supported.
slouken@3407
   889
 *  
slouken@3407
   890
 *  \sa SDL_GetTextureColorMod()
slouken@1985
   891
 */
slouken@3685
   892
extern DECLSPEC int SDLCALL SDL_SetTextureColorMod(SDL_Texture * texture,
slouken@1985
   893
                                                   Uint8 r, Uint8 g, Uint8 b);
slouken@1985
   894
slouken@1985
   895
slouken@1985
   896
/**
slouken@3407
   897
 *  \brief Get the additional color value used in render copy operations.
slouken@3407
   898
 *  
slouken@3685
   899
 *  \param texture The texture to query.
slouken@4971
   900
 *  \param r         A pointer filled in with the current red color value.
slouken@4971
   901
 *  \param g         A pointer filled in with the current green color value.
slouken@4971
   902
 *  \param b         A pointer filled in with the current blue color value.
slouken@3407
   903
 *  
slouken@3407
   904
 *  \return 0 on success, or -1 if the texture is not valid.
slouken@3407
   905
 *  
slouken@3407
   906
 *  \sa SDL_SetTextureColorMod()
slouken@1985
   907
 */
slouken@3685
   908
extern DECLSPEC int SDLCALL SDL_GetTextureColorMod(SDL_Texture * texture,
slouken@1985
   909
                                                   Uint8 * r, Uint8 * g,
slouken@1985
   910
                                                   Uint8 * b);
slouken@1985
   911
slouken@1985
   912
/**
slouken@3407
   913
 *  \brief Set an additional alpha value used in render copy operations.
slouken@3407
   914
 *  
slouken@3685
   915
 *  \param texture The texture to update.
slouken@4971
   916
 *  \param alpha     The alpha value multiplied into copy operations.
slouken@3407
   917
 *  
slouken@3407
   918
 *  \return 0 on success, or -1 if the texture is not valid or alpha modulation 
slouken@3407
   919
 *          is not supported.
slouken@3407
   920
 *  
slouken@3407
   921
 *  \sa SDL_GetTextureAlphaMod()
slouken@1985
   922
 */
slouken@3685
   923
extern DECLSPEC int SDLCALL SDL_SetTextureAlphaMod(SDL_Texture * texture,
slouken@1985
   924
                                                   Uint8 alpha);
slouken@1985
   925
slouken@1985
   926
/**
slouken@3407
   927
 *  \brief Get the additional alpha value used in render copy operations.
slouken@3407
   928
 *  
slouken@3685
   929
 *  \param texture The texture to query.
slouken@4971
   930
 *  \param alpha     A pointer filled in with the current alpha value.
slouken@3407
   931
 *  
slouken@3407
   932
 *  \return 0 on success, or -1 if the texture is not valid.
slouken@3407
   933
 *  
slouken@3407
   934
 *  \sa SDL_SetTextureAlphaMod()
slouken@1985
   935
 */
slouken@3685
   936
extern DECLSPEC int SDLCALL SDL_GetTextureAlphaMod(SDL_Texture * texture,
slouken@1985
   937
                                                   Uint8 * alpha);
slouken@1985
   938
slouken@1985
   939
/**
slouken@3407
   940
 *  \brief Set the blend mode used for texture copy operations.
slouken@3407
   941
 *  
slouken@3685
   942
 *  \param texture The texture to update.
slouken@3407
   943
 *  \param blendMode ::SDL_BlendMode to use for texture blending.
slouken@3407
   944
 *  
slouken@3407
   945
 *  \return 0 on success, or -1 if the texture is not valid or the blend mode is
slouken@3407
   946
 *          not supported.
slouken@3407
   947
 *  
slouken@3407
   948
 *  \note If the blend mode is not supported, the closest supported mode is
slouken@3407
   949
 *        chosen.
slouken@3407
   950
 *  
slouken@3407
   951
 *  \sa SDL_GetTextureBlendMode()
slouken@1985
   952
 */
slouken@3685
   953
extern DECLSPEC int SDLCALL SDL_SetTextureBlendMode(SDL_Texture * texture,
slouken@4929
   954
                                                    SDL_BlendMode blendMode);
slouken@1985
   955
slouken@1985
   956
/**
slouken@3407
   957
 *  \brief Get the blend mode used for texture copy operations.
slouken@3407
   958
 *  
slouken@3685
   959
 *  \param texture The texture to query.
slouken@3407
   960
 *  \param blendMode A pointer filled in with the current blend mode.
slouken@3407
   961
 *  
slouken@3407
   962
 *  \return 0 on success, or -1 if the texture is not valid.
slouken@3407
   963
 *  
slouken@3407
   964
 *  \sa SDL_SetTextureBlendMode()
slouken@1985
   965
 */
slouken@3685
   966
extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture,
slouken@4929
   967
                                                    SDL_BlendMode *blendMode);
slouken@1985
   968
slouken@1985
   969
/**
slouken@3407
   970
 *  \brief Update the given texture rectangle with new pixel data.
slouken@3407
   971
 *  
slouken@3685
   972
 *  \param texture The texture to update
slouken@3407
   973
 *  \param rect      A pointer to the rectangle of pixels to update, or NULL to 
slouken@3407
   974
 *                   update the entire texture.
slouken@3407
   975
 *  \param pixels    The raw pixel data.
slouken@3407
   976
 *  \param pitch     The number of bytes between rows of pixel data.
slouken@3407
   977
 *  
slouken@3407
   978
 *  \return 0 on success, or -1 if the texture is not valid.
slouken@3407
   979
 *  
slouken@3407
   980
 *  \note This is a fairly slow function.
slouken@1895
   981
 */
slouken@3685
   982
extern DECLSPEC int SDLCALL SDL_UpdateTexture(SDL_Texture * texture,
slouken@1895
   983
                                              const SDL_Rect * rect,
slouken@1895
   984
                                              const void *pixels, int pitch);
slouken@1895
   985
slouken@1895
   986
/**
slouken@3407
   987
 *  \brief Lock a portion of the texture for pixel access.
slouken@3407
   988
 *  
slouken@3685
   989
 *  \param texture The texture to lock for access, which was created with 
slouken@3407
   990
 *                   ::SDL_TEXTUREACCESS_STREAMING.
slouken@3407
   991
 *  \param rect      A pointer to the rectangle to lock for access. If the rect 
slouken@3407
   992
 *                   is NULL, the entire texture will be locked.
slouken@3407
   993
 *  \param markDirty If this is nonzero, the locked area will be marked dirty 
slouken@3407
   994
 *                   when the texture is unlocked.
slouken@3407
   995
 *  \param pixels    This is filled in with a pointer to the locked pixels, 
slouken@3407
   996
 *                   appropriately offset by the locked area.
slouken@3407
   997
 *  \param pitch     This is filled in with the pitch of the locked pixels.
slouken@3407
   998
 *  
slouken@3407
   999
 *  \return 0 on success, or -1 if the texture is not valid or was created with 
slouken@3407
  1000
 *          ::SDL_TEXTUREACCESS_STATIC.
slouken@3407
  1001
 *  
slouken@3407
  1002
 *  \sa SDL_DirtyTexture()
slouken@3407
  1003
 *  \sa SDL_UnlockTexture()
slouken@1895
  1004
 */
slouken@3685
  1005
extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_Texture * texture,
slouken@1895
  1006
                                            const SDL_Rect * rect,
slouken@1895
  1007
                                            int markDirty, void **pixels,
slouken@1895
  1008
                                            int *pitch);
slouken@1895
  1009
slouken@1895
  1010
/**
slouken@3407
  1011
 *  \brief Unlock a texture, uploading the changes to video memory, if needed.
slouken@3407
  1012
 *  
slouken@3407
  1013
 *  \sa SDL_LockTexture()
slouken@3407
  1014
 *  \sa SDL_DirtyTexture()
slouken@1895
  1015
 */
slouken@3685
  1016
extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_Texture * texture);
slouken@1895
  1017
slouken@1895
  1018
/**
slouken@3407
  1019
 *  \brief Mark the specified rectangles of the texture as dirty.
slouken@3407
  1020
 *  
slouken@3685
  1021
 *  \param texture The texture to mark dirty, which was created with 
slouken@3407
  1022
 *                   ::SDL_TEXTUREACCESS_STREAMING.
slouken@3407
  1023
 *  \param numrects  The number of rectangles pointed to by rects.
slouken@3407
  1024
 *  \param rects     The pointer to an array of dirty rectangles.
slouken@3407
  1025
 *  
slouken@3407
  1026
 *  \sa SDL_LockTexture()
slouken@3407
  1027
 *  \sa SDL_UnlockTexture()
slouken@1895
  1028
 */
slouken@3685
  1029
extern DECLSPEC void SDLCALL SDL_DirtyTexture(SDL_Texture * texture,
slouken@1895
  1030
                                              int numrects,
slouken@1895
  1031
                                              const SDL_Rect * rects);
slouken@1895
  1032
slouken@1895
  1033
/**
slouken@3407
  1034
 *  \brief Set the color used for drawing operations (Fill and Line).
slouken@3407
  1035
 *  
slouken@3407
  1036
 *  \param r The red value used to draw on the rendering target.
slouken@3407
  1037
 *  \param g The green value used to draw on the rendering target.
slouken@3407
  1038
 *  \param b The blue value used to draw on the rendering target.
slouken@3407
  1039
 *  \param a The alpha value used to draw on the rendering target, usually 
slouken@3407
  1040
 *           ::SDL_ALPHA_OPAQUE (255).
slouken@3407
  1041
 *  
slouken@3407
  1042
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@2884
  1043
 */
slouken@2884
  1044
extern DECLSPEC int SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b,
slouken@2884
  1045
                                           Uint8 a);
slouken@2884
  1046
slouken@2884
  1047
/**
slouken@3407
  1048
 *  \brief Get the color used for drawing operations (Fill and Line).
slouken@3407
  1049
 *  
slouken@3407
  1050
 *  \param r A pointer to the red value used to draw on the rendering target.
slouken@3407
  1051
 *  \param g A pointer to the green value used to draw on the rendering target.
slouken@3407
  1052
 *  \param b A pointer to the blue value used to draw on the rendering target.
slouken@3407
  1053
 *  \param a A pointer to the alpha value used to draw on the rendering target, 
slouken@3407
  1054
 *           usually ::SDL_ALPHA_OPAQUE (255).
slouken@3407
  1055
 *  
slouken@3407
  1056
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@2884
  1057
 */
slouken@2884
  1058
extern DECLSPEC int SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b,
slouken@2884
  1059
                                           Uint8 * a);
slouken@2884
  1060
slouken@2884
  1061
/**
slouken@3407
  1062
 *  \brief Set the blend mode used for drawing operations (Fill and Line).
slouken@3407
  1063
 *  
slouken@3407
  1064
 *  \param blendMode ::SDL_BlendMode to use for blending.
slouken@3407
  1065
 *  
slouken@3407
  1066
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3407
  1067
 *  
slouken@3407
  1068
 *  \note If the blend mode is not supported, the closest supported mode is 
slouken@3407
  1069
 *        chosen.
slouken@3407
  1070
 *  
slouken@3407
  1071
 *  \sa SDL_GetRenderDrawBlendMode()
slouken@2884
  1072
 */
slouken@4929
  1073
extern DECLSPEC int SDLCALL SDL_SetRenderDrawBlendMode(SDL_BlendMode blendMode);
slouken@2884
  1074
slouken@2884
  1075
/**
slouken@3407
  1076
 *  \brief Get the blend mode used for drawing operations.
slouken@3407
  1077
 *  
slouken@3407
  1078
 *  \param blendMode A pointer filled in with the current blend mode.
slouken@3407
  1079
 *  
slouken@3407
  1080
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3407
  1081
 *  
slouken@3407
  1082
 *  \sa SDL_SetRenderDrawBlendMode()
slouken@2884
  1083
 */
slouken@4929
  1084
extern DECLSPEC int SDLCALL SDL_GetRenderDrawBlendMode(SDL_BlendMode *blendMode);
slouken@2884
  1085
slouken@2884
  1086
/**
slouken@3596
  1087
 *  \brief Clear the current rendering target with the drawing color
slouken@3596
  1088
 */
slouken@3677
  1089
extern DECLSPEC int SDLCALL SDL_RenderClear(void);
slouken@3596
  1090
slouken@3596
  1091
/**
slouken@3407
  1092
 *  \brief Draw a point on the current rendering target.
slouken@3407
  1093
 *  
slouken@3407
  1094
 *  \param x The x coordinate of the point.
slouken@3407
  1095
 *  \param y The y coordinate of the point.
slouken@3407
  1096
 *  
slouken@3407
  1097
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@2901
  1098
 */
slouken@3596
  1099
extern DECLSPEC int SDLCALL SDL_RenderDrawPoint(int x, int y);
slouken@2901
  1100
slouken@2901
  1101
/**
slouken@4876
  1102
 *  \brief Draw multiple points on the current rendering target.
slouken@3536
  1103
 *  
slouken@3536
  1104
 *  \param points The points to draw
slouken@3536
  1105
 *  \param count The number of points to draw
slouken@3536
  1106
 *  
slouken@3536
  1107
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3536
  1108
 */
slouken@3596
  1109
extern DECLSPEC int SDLCALL SDL_RenderDrawPoints(const SDL_Point * points,
slouken@3596
  1110
                                                 int count);
slouken@3536
  1111
slouken@3536
  1112
/**
slouken@3407
  1113
 *  \brief Draw a line on the current rendering target.
slouken@3407
  1114
 *  
slouken@3407
  1115
 *  \param x1 The x coordinate of the start point.
slouken@3407
  1116
 *  \param y1 The y coordinate of the start point.
slouken@3407
  1117
 *  \param x2 The x coordinate of the end point.
slouken@3407
  1118
 *  \param y2 The y coordinate of the end point.
slouken@3407
  1119
 *  
slouken@3407
  1120
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@2884
  1121
 */
slouken@3596
  1122
extern DECLSPEC int SDLCALL SDL_RenderDrawLine(int x1, int y1, int x2, int y2);
slouken@2884
  1123
slouken@2884
  1124
/**
slouken@3536
  1125
 *  \brief Draw a series of connected lines on the current rendering target.
slouken@3536
  1126
 *  
slouken@3536
  1127
 *  \param points The points along the lines
slouken@3536
  1128
 *  \param count The number of points, drawing count-1 lines
slouken@3536
  1129
 *  
slouken@3536
  1130
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3536
  1131
 */
slouken@3596
  1132
extern DECLSPEC int SDLCALL SDL_RenderDrawLines(const SDL_Point * points,
slouken@3596
  1133
                                                int count);
slouken@3536
  1134
slouken@3536
  1135
/**
slouken@4878
  1136
 *  \brief Draw a rectangle on the current rendering target.
slouken@3596
  1137
 *  
slouken@3596
  1138
 *  \param rect A pointer to the destination rectangle, or NULL to outline the entire rendering target.
slouken@3596
  1139
 *  
slouken@3596
  1140
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3596
  1141
 */
slouken@3596
  1142
extern DECLSPEC int SDLCALL SDL_RenderDrawRect(const SDL_Rect * rect);
slouken@3596
  1143
slouken@3596
  1144
/**
slouken@4878
  1145
 *  \brief Draw some number of rectangles on the current rendering target.
slouken@3596
  1146
 *  
slouken@3596
  1147
 *  \param rects A pointer to an array of destination rectangles.
slouken@3596
  1148
 *  \param count The number of rectangles.
slouken@3596
  1149
 *  
slouken@3596
  1150
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3596
  1151
 */
slouken@4877
  1152
extern DECLSPEC int SDLCALL SDL_RenderDrawRects(const SDL_Rect ** rects, int count);
slouken@3596
  1153
slouken@3596
  1154
/**
slouken@3596
  1155
 *  \brief Fill a rectangle on the current rendering target with the drawing color.
slouken@3407
  1156
 *  
slouken@3407
  1157
 *  \param rect A pointer to the destination rectangle, or NULL for the entire 
slouken@3407
  1158
 *              rendering target.
slouken@3407
  1159
 *  
slouken@3407
  1160
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@1895
  1161
 */
slouken@3596
  1162
extern DECLSPEC int SDLCALL SDL_RenderFillRect(const SDL_Rect * rect);
slouken@3536
  1163
slouken@3536
  1164
/**
slouken@4879
  1165
 *  \brief Fill some number of rectangles on the current rendering target with the drawing color.
slouken@3536
  1166
 *  
slouken@3536
  1167
 *  \param rects A pointer to an array of destination rectangles.
slouken@3536
  1168
 *  \param count The number of rectangles.
slouken@3536
  1169
 *  
slouken@3536
  1170
 *  \return 0 on success, or -1 if there is no rendering context current.
slouken@3536
  1171
 */
slouken@3596
  1172
extern DECLSPEC int SDLCALL SDL_RenderFillRects(const SDL_Rect ** rect, int count);
slouken@3596
  1173
slouken@1895
  1174
/**
slouken@3407
  1175
 *  \brief Copy a portion of the texture to the current rendering target.
slouken@3407
  1176
 *  
slouken@3685
  1177
 *  \param texture The source texture.
slouken@3407
  1178
 *  \param srcrect   A pointer to the source rectangle, or NULL for the entire 
slouken@3407
  1179
 *                   texture.
slouken@3407
  1180
 *  \param dstrect   A pointer to the destination rectangle, or NULL for the 
slouken@3407
  1181
 *                   entire rendering target.
slouken@3407
  1182
 *  
slouken@3407
  1183
 *  \return 0 on success, or -1 if there is no rendering context current, or the
slouken@3407
  1184
 *          driver doesn't support the requested operation.
slouken@1895
  1185
 */
slouken@3685
  1186
extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_Texture * texture,
slouken@1895
  1187
                                           const SDL_Rect * srcrect,
slouken@1985
  1188
                                           const SDL_Rect * dstrect);
slouken@1895
  1189
slouken@1895
  1190
/**
slouken@3407
  1191
 *  \brief Read pixels from the current rendering target.
slouken@3407
  1192
 *  
slouken@3407
  1193
 *  \param rect   A pointer to the rectangle to read, or NULL for the entire 
slouken@3407
  1194
 *                render target.
slouken@3435
  1195
 *  \param format The desired format of the pixel data, or 0 to use the format
slouken@3435
  1196
 *                of the rendering target
slouken@3435
  1197
 *  \param pixels A pointer to be filled in with the pixel data
slouken@3407
  1198
 *  \param pitch  The pitch of the pixels parameter.
slouken@3407
  1199
 *  
slouken@3407
  1200
 *  \return 0 on success, or -1 if pixel reading is not supported.
slouken@3407
  1201
 *  
slouken@3407
  1202
 *  \warning This is a very slow operation, and should not be used frequently.
slouken@1895
  1203
 */
slouken@1895
  1204
extern DECLSPEC int SDLCALL SDL_RenderReadPixels(const SDL_Rect * rect,
slouken@3435
  1205
                                                 Uint32 format,
slouken@1895
  1206
                                                 void *pixels, int pitch);
slouken@1895
  1207
slouken@1895
  1208
/**
slouken@3407
  1209
 *  \brief Write pixels to the current rendering target.
slouken@3407
  1210
 *  
slouken@3407
  1211
 *  \param rect   A pointer to the rectangle to write, or NULL for the entire 
slouken@3407
  1212
 *                render target.
slouken@3435
  1213
 *  \param format The format of the pixel data, or 0 to use the format
slouken@3435
  1214
 *                of the rendering target
slouken@3407
  1215
 *  \param pixels A pointer to the pixel data to write.
slouken@3407
  1216
 *  \param pitch  The pitch of the pixels parameter.
slouken@3407
  1217
 *  
slouken@3407
  1218
 *  \return 0 on success, or -1 if pixel writing is not supported.
slouken@3407
  1219
 *  
slouken@3407
  1220
 *  \warning This is a very slow operation, and should not be used frequently.
slouken@1895
  1221
 */
slouken@1895
  1222
extern DECLSPEC int SDLCALL SDL_RenderWritePixels(const SDL_Rect * rect,
slouken@3435
  1223
                                                  Uint32 format,
slouken@1895
  1224
                                                  const void *pixels,
slouken@1895
  1225
                                                  int pitch);
slouken@1895
  1226
slouken@1895
  1227
/**
slouken@3407
  1228
 *  \brief Update the screen with rendering performed.
slouken@1895
  1229
 */
slouken@1895
  1230
extern DECLSPEC void SDLCALL SDL_RenderPresent(void);
slouken@1895
  1231
slouken@1895
  1232
/**
slouken@3407
  1233
 *  \brief Destroy the specified texture.
slouken@3407
  1234
 *  
slouken@3407
  1235
 *  \sa SDL_CreateTexture()
slouken@3407
  1236
 *  \sa SDL_CreateTextureFromSurface()
slouken@1895
  1237
 */
slouken@3685
  1238
extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_Texture * texture);
slouken@1895
  1239
slouken@1895
  1240
/**
slouken@3407
  1241
 *  \brief Destroy the rendering context for a window and free associated
slouken@3407
  1242
 *         textures.
slouken@3407
  1243
 *  
slouken@3407
  1244
 *  \sa SDL_CreateRenderer()
slouken@1895
  1245
 */
slouken@3685
  1246
extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_Window * window);
slouken@0
  1247
slouken@3025
  1248
/**
slouken@4875
  1249
 *  \brief Returns whether the screensaver is currently enabled (default on).
slouken@3407
  1250
 *  
slouken@3407
  1251
 *  \sa SDL_EnableScreenSaver()
slouken@3407
  1252
 *  \sa SDL_DisableScreenSaver()
slouken@3025
  1253
 */
couriersud@3033
  1254
extern DECLSPEC SDL_bool SDLCALL SDL_IsScreenSaverEnabled(void);
slouken@3025
  1255
slouken@3025
  1256
/**
slouken@3407
  1257
 *  \brief Allow the screen to be blanked by a screensaver
slouken@3407
  1258
 *  
slouken@3407
  1259
 *  \sa SDL_IsScreenSaverEnabled()
slouken@3407
  1260
 *  \sa SDL_DisableScreenSaver()
slouken@3025
  1261
 */
couriersud@3033
  1262
extern DECLSPEC void SDLCALL SDL_EnableScreenSaver(void);
slouken@3025
  1263
slouken@3025
  1264
/**
slouken@3407
  1265
 *  \brief Prevent the screen from being blanked by a screensaver
slouken@3407
  1266
 *  
slouken@3407
  1267
 *  \sa SDL_IsScreenSaverEnabled()
slouken@3407
  1268
 *  \sa SDL_EnableScreenSaver()
slouken@3025
  1269
 */
couriersud@3033
  1270
extern DECLSPEC void SDLCALL SDL_DisableScreenSaver(void);
slouken@3025
  1271
slouken@0
  1272
slouken@3407
  1273
/**
slouken@3407
  1274
 *  \name OpenGL support functions
slouken@3407
  1275
 */
slouken@3407
  1276
/*@{*/
slouken@0
  1277
slouken@1895
  1278
/**
slouken@3407
  1279
 *  \brief Dynamically load an OpenGL library.
slouken@3407
  1280
 *  
slouken@3407
  1281
 *  \param path The platform dependent OpenGL library name, or NULL to open the 
slouken@3407
  1282
 *              default OpenGL library.
slouken@3407
  1283
 *  
slouken@3407
  1284
 *  \return 0 on success, or -1 if the library couldn't be loaded.
slouken@3407
  1285
 *  
slouken@3407
  1286
 *  This should be done after initializing the video driver, but before
slouken@3407
  1287
 *  creating any OpenGL windows.  If no OpenGL library is loaded, the default
slouken@3407
  1288
 *  library will be loaded upon creation of the first OpenGL window.
slouken@3407
  1289
 *  
slouken@3407
  1290
 *  \note If you do this, you need to retrieve all of the GL functions used in
slouken@3407
  1291
 *        your program from the dynamic library using SDL_GL_GetProcAddress().
slouken@3407
  1292
 *  
slouken@3407
  1293
 *  \sa SDL_GL_GetProcAddress()
slouken@3407
  1294
 *  \sa SDL_GL_UnloadLibrary()
slouken@0
  1295
 */
slouken@337
  1296
extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path);
slouken@0
  1297
slouken@1895
  1298
/**
slouken@3407
  1299
 *  \brief Get the address of an OpenGL function.
slouken@0
  1300
 */
slouken@1895
  1301
extern DECLSPEC void *SDLCALL SDL_GL_GetProcAddress(const char *proc);
slouken@0
  1302
slouken@1895
  1303
/**
slouken@3407
  1304
 *  \brief Unload the OpenGL library previously loaded by SDL_GL_LoadLibrary().
slouken@3407
  1305
 *  
slouken@3407
  1306
 *  \sa SDL_GL_LoadLibrary()
slouken@3057
  1307
 */
slouken@3057
  1308
extern DECLSPEC void SDLCALL SDL_GL_UnloadLibrary(void);
slouken@3057
  1309
slouken@3057
  1310
/**
slouken@3407
  1311
 *  \brief Return true if an OpenGL extension is supported for the current 
slouken@3407
  1312
 *         context.
slouken@1926
  1313
 */
slouken@1926
  1314
extern DECLSPEC SDL_bool SDLCALL SDL_GL_ExtensionSupported(const char
slouken@1926
  1315
                                                           *extension);
slouken@1926
  1316
slouken@1926
  1317
/**
slouken@3407
  1318
 *  \brief Set an OpenGL window attribute before window creation.
slouken@0
  1319
 */
slouken@337
  1320
extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value);
slouken@0
  1321
slouken@1895
  1322
/**
slouken@3407
  1323
 *  \brief Get the actual value for an attribute from the current context.
slouken@0
  1324
 */
slouken@1936
  1325
extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int *value);
slouken@0
  1326
slouken@1895
  1327
/**
slouken@3407
  1328
 *  \brief Create an OpenGL context for use with an OpenGL window, and make it 
slouken@3407
  1329
 *         current.
slouken@3407
  1330
 *  
slouken@3407
  1331
 *  \sa SDL_GL_DeleteContext()
slouken@1895
  1332
 */
slouken@3685
  1333
extern DECLSPEC SDL_GLContext SDLCALL SDL_GL_CreateContext(SDL_Window *
slouken@3685
  1334
                                                           window);
slouken@1895
  1335
slouken@1895
  1336
/**
slouken@3407
  1337
 *  \brief Set up an OpenGL context for rendering into an OpenGL window.
slouken@3407
  1338
 *  
slouken@3407
  1339
 *  \note The context must have been created with a compatible window.
slouken@1895
  1340
 */
slouken@3685
  1341
extern DECLSPEC int SDLCALL SDL_GL_MakeCurrent(SDL_Window * window,
slouken@1895
  1342
                                               SDL_GLContext context);
slouken@1895
  1343
slouken@1895
  1344
/**
slouken@3407
  1345
 *  \brief Set the swap interval for the current OpenGL context.
slouken@3407
  1346
 *  
slouken@3407
  1347
 *  \param interval 0 for immediate updates, 1 for updates synchronized with the
slouken@3407
  1348
 *                  vertical retrace.
slouken@3407
  1349
 *  
slouken@3407
  1350
 *  \return 0 on success, or -1 if setting the swap interval is not supported.
slouken@3407
  1351
 *  
slouken@3407
  1352
 *  \sa SDL_GL_GetSwapInterval()
slouken@1895
  1353
 */
slouken@1895
  1354
extern DECLSPEC int SDLCALL SDL_GL_SetSwapInterval(int interval);
slouken@1895
  1355
slouken@1895
  1356
/**
slouken@3407
  1357
 *  \brief Get the swap interval for the current OpenGL context.
slouken@3407
  1358
 *  
slouken@3407
  1359
 *  \return 0 if there is no vertical retrace synchronization, 1 if the buffer 
slouken@3407
  1360
 *          swap is synchronized with the vertical retrace, and -1 if getting 
slouken@3407
  1361
 *          the swap interval is not supported.
slouken@3407
  1362
 *  
slouken@3407
  1363
 *  \sa SDL_GL_SetSwapInterval()
slouken@1895
  1364
 */
slouken@1895
  1365
extern DECLSPEC int SDLCALL SDL_GL_GetSwapInterval(void);
slouken@1895
  1366
slouken@1895
  1367
/**
slouken@4883
  1368
 * \brief Swap the OpenGL buffers for a window, if double-buffering is 
slouken@3407
  1369
 *        supported.
slouken@0
  1370
 */
slouken@3685
  1371
extern DECLSPEC void SDLCALL SDL_GL_SwapWindow(SDL_Window * window);
slouken@0
  1372
slouken@1895
  1373
/**
slouken@3407
  1374
 *  \brief Delete an OpenGL context.
slouken@3407
  1375
 *  
slouken@3407
  1376
 *  \sa SDL_GL_CreateContext()
slouken@0
  1377
 */
slouken@1895
  1378
extern DECLSPEC void SDLCALL SDL_GL_DeleteContext(SDL_GLContext context);
slouken@0
  1379
slouken@3407
  1380
/*@}*//*OpenGL support functions*/
slouken@3407
  1381
slouken@0
  1382
slouken@0
  1383
/* Ends C function definitions when using C++ */
slouken@0
  1384
#ifdef __cplusplus
slouken@1895
  1385
/* *INDENT-OFF* */
slouken@0
  1386
}
slouken@1895
  1387
/* *INDENT-ON* */
slouken@0
  1388
#endif
slouken@0
  1389
#include "close_code.h"
slouken@0
  1390
slouken@0
  1391
#endif /* _SDL_video_h */
slouken@1895
  1392
slouken@1895
  1393
/* vi: set ts=4 sw=4 expandtab: */