include/SDL_video.h
author Ryan C. Gordon <icculus@icculus.org>
Sun, 12 Apr 2015 21:02:21 -0400
changeset 9556 db92b9d74129
parent 9447 728a4bf8e02f
child 9619 b94b6d0bff0f
permissions -rw-r--r--
Patched to compile on C89 compilers.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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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_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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extern "C" {
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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_SetWindowBordered()
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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 */
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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_HIDDEN = 0x00000008,             /**< window is not visible */
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    SDL_WINDOW_BORDERLESS = 0x00000010,         /**< no window decoration */
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    SDL_WINDOW_RESIZABLE = 0x00000020,          /**< window can be resized */
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    SDL_WINDOW_MINIMIZED = 0x00000040,          /**< window is minimized */
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    SDL_WINDOW_MAXIMIZED = 0x00000080,          /**< 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_FULLSCREEN_DESKTOP = ( SDL_WINDOW_FULLSCREEN | 0x00001000 ),
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    SDL_WINDOW_FOREIGN = 0x00000800,            /**< window not created by SDL */
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    SDL_WINDOW_ALLOW_HIGHDPI = 0x00002000,      /**< window should be created in high-DPI mode if supported */
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    SDL_WINDOW_MOUSE_CAPTURE = 0x00004000       /**< window has mouse captured (unrelated to INPUT_GRABBED) */
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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_MASK    0x1FFF0000
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#define SDL_WINDOWPOS_UNDEFINED_DISPLAY(X)  (SDL_WINDOWPOS_UNDEFINED_MASK|(X))
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#define SDL_WINDOWPOS_UNDEFINED         SDL_WINDOWPOS_UNDEFINED_DISPLAY(0)
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#define SDL_WINDOWPOS_ISUNDEFINED(X)    \
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            (((X)&0xFFFF0000) == SDL_WINDOWPOS_UNDEFINED_MASK)
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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_MASK    0x2FFF0000
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#define SDL_WINDOWPOS_CENTERED_DISPLAY(X)  (SDL_WINDOWPOS_CENTERED_MASK|(X))
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#define SDL_WINDOWPOS_CENTERED         SDL_WINDOWPOS_CENTERED_DISPLAY(0)
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#define SDL_WINDOWPOS_ISCENTERED(X)    \
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            (((X)&0xFFFF0000) == SDL_WINDOWPOS_CENTERED_MASK)
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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 has been resized to data1xdata2 */
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    SDL_WINDOWEVENT_SIZE_CHANGED,   /**< The window size has changed, either as a result of an API call or through the system or user changing the window size. */
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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 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_GL_CONTEXT_EGL,
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    SDL_GL_CONTEXT_FLAGS,
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    SDL_GL_CONTEXT_PROFILE_MASK,
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    SDL_GL_SHARE_WITH_CURRENT_CONTEXT,
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    SDL_GL_FRAMEBUFFER_SRGB_CAPABLE,
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    SDL_GL_CONTEXT_RELEASE_BEHAVIOR
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} SDL_GLattr;
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typedef enum
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{
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    SDL_GL_CONTEXT_PROFILE_CORE           = 0x0001,
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    SDL_GL_CONTEXT_PROFILE_COMPATIBILITY  = 0x0002,
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    SDL_GL_CONTEXT_PROFILE_ES             = 0x0004 /* GLX_CONTEXT_ES2_PROFILE_BIT_EXT */
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} SDL_GLprofile;
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typedef enum
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{
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    SDL_GL_CONTEXT_DEBUG_FLAG              = 0x0001,
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    SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG = 0x0002,
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    SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG      = 0x0004,
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    SDL_GL_CONTEXT_RESET_ISOLATION_FLAG    = 0x0008
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} SDL_GLcontextFlag;
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typedef enum
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{
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    SDL_GL_CONTEXT_RELEASE_BEHAVIOR_NONE   = 0x0000,
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    SDL_GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH  = 0x0001
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} SDL_GLcontextReleaseFlag;
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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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 */
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extern DECLSPEC int SDLCALL SDL_GetNumVideoDisplays(void);
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/**
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 *  \brief Get the name of a display in UTF-8 encoding
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 *
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 *  \return The name of a display, or NULL for an invalid display index.
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 *
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 *  \sa SDL_GetNumVideoDisplays()
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 */
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extern DECLSPEC const char * SDLCALL SDL_GetDisplayName(int displayIndex);
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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 displayIndex, SDL_Rect * rect);
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/**
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 *  \brief Returns the number of available display modes.
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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(int displayIndex);
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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()
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 */
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extern DECLSPEC int SDLCALL SDL_GetDisplayMode(int displayIndex, int modeIndex,
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                                               SDL_DisplayMode * mode);
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/**
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 *  \brief Fill in information about the desktop display mode.
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 */
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extern DECLSPEC int SDLCALL SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode);
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/**
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 *  \brief Fill in information about the current display mode.
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 */
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extern DECLSPEC int SDLCALL SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode);
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/**
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 *  \brief Get the closest match to the requested display mode.
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 *
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 *  \param displayIndex The index of display from which mode should be queried.
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 *  \param mode The desired display mode
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 *  \param closest A pointer to a display mode to be filled in with the closest
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 *                 match of the available display modes.
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 *
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 *  \return The passed in value \c closest, or NULL if no matching video mode
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 *          was available.
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 *
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 *  The available display modes are scanned, and \c closest is filled in with the
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 *  closest mode matching the requested mode and returned.  The mode format and
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 *  refresh_rate default to the desktop mode if they are 0.  The modes are
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 *  scanned with size being first priority, format being second priority, and
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 *  finally checking the refresh_rate.  If all the available modes are too
slouken@3407
   347
 *  small, then NULL is returned.
slouken@7191
   348
 *
slouken@3407
   349
 *  \sa SDL_GetNumDisplayModes()
slouken@3407
   350
 *  \sa SDL_GetDisplayMode()
slouken@1895
   351
 */
slouken@5244
   352
extern DECLSPEC SDL_DisplayMode * SDLCALL SDL_GetClosestDisplayMode(int displayIndex, const SDL_DisplayMode * mode, SDL_DisplayMode * closest);
slouken@1895
   353
slouken@1895
   354
/**
slouken@5246
   355
 *  \brief Get the display index associated with a window.
slouken@7191
   356
 *
slouken@5246
   357
 *  \return the display index of the display containing the center of the
slouken@5246
   358
 *          window, or -1 on error.
slouken@5246
   359
 */
slouken@6786
   360
extern DECLSPEC int SDLCALL SDL_GetWindowDisplayIndex(SDL_Window * window);
slouken@5246
   361
slouken@5246
   362
/**
slouken@5244
   363
 *  \brief Set the display mode used when a fullscreen window is visible.
slouken@5244
   364
 *
slouken@5244
   365
 *  By default the window's dimensions and the desktop format and refresh rate
slouken@5244
   366
 *  are used.
slouken@7191
   367
 *
philipp@7188
   368
 *  \param window The window for which the display mode should be set.
slouken@3500
   369
 *  \param mode The mode to use, or NULL for the default mode.
slouken@7191
   370
 *
slouken@3407
   371
 *  \return 0 on success, or -1 if setting the display mode failed.
slouken@7191
   372
 *
slouken@3522
   373
 *  \sa SDL_GetWindowDisplayMode()
slouken@3407
   374
 *  \sa SDL_SetWindowFullscreen()
slouken@0
   375
 */
slouken@3685
   376
extern DECLSPEC int SDLCALL SDL_SetWindowDisplayMode(SDL_Window * window,
slouken@3500
   377
                                                     const SDL_DisplayMode
slouken@1895
   378
                                                         * mode);
slouken@0
   379
slouken@1895
   380
/**
slouken@3407
   381
 *  \brief Fill in information about the display mode used when a fullscreen
slouken@5244
   382
 *         window is visible.
slouken@3522
   383
 *
slouken@3522
   384
 *  \sa SDL_SetWindowDisplayMode()
slouken@3522
   385
 *  \sa SDL_SetWindowFullscreen()
slouken@0
   386
 */
slouken@3685
   387
extern DECLSPEC int SDLCALL SDL_GetWindowDisplayMode(SDL_Window * window,
slouken@3500
   388
                                                     SDL_DisplayMode * mode);
slouken@0
   389
slouken@1895
   390
/**
slouken@5154
   391
 *  \brief Get the pixel format associated with the window.
slouken@5154
   392
 */
slouken@5154
   393
extern DECLSPEC Uint32 SDLCALL SDL_GetWindowPixelFormat(SDL_Window * window);
slouken@5154
   394
slouken@5154
   395
/**
slouken@3407
   396
 *  \brief Create a window with the specified position, dimensions, and flags.
slouken@7191
   397
 *
slouken@3407
   398
 *  \param title The title of the window, in UTF-8 encoding.
slouken@7191
   399
 *  \param x     The x position of the window, ::SDL_WINDOWPOS_CENTERED, or
slouken@3407
   400
 *               ::SDL_WINDOWPOS_UNDEFINED.
slouken@7191
   401
 *  \param y     The y position of the window, ::SDL_WINDOWPOS_CENTERED, or
slouken@3407
   402
 *               ::SDL_WINDOWPOS_UNDEFINED.
slouken@3407
   403
 *  \param w     The width of the window.
slouken@3407
   404
 *  \param h     The height of the window.
slouken@7191
   405
 *  \param flags The flags for the window, a mask of any of the following:
urkle@7746
   406
 *               ::SDL_WINDOW_FULLSCREEN,    ::SDL_WINDOW_OPENGL,
urkle@7746
   407
 *               ::SDL_WINDOW_HIDDEN,        ::SDL_WINDOW_BORDERLESS,
urkle@7746
   408
 *               ::SDL_WINDOW_RESIZABLE,     ::SDL_WINDOW_MAXIMIZED,
urkle@7746
   409
 *               ::SDL_WINDOW_MINIMIZED,     ::SDL_WINDOW_INPUT_GRABBED,
urkle@7746
   410
 *               ::SDL_WINDOW_ALLOW_HIGHDPI.
slouken@7191
   411
 *
slouken@3407
   412
 *  \return The id of the window created, or zero if window creation failed.
slouken@7191
   413
 *
slouken@3407
   414
 *  \sa SDL_DestroyWindow()
slouken@0
   415
 */
slouken@3685
   416
extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindow(const char *title,
slouken@1895
   417
                                                      int x, int y, int w,
slouken@1895
   418
                                                      int h, Uint32 flags);
slouken@0
   419
slouken@1895
   420
/**
slouken@3493
   421
 *  \brief Create an SDL window from an existing native window.
slouken@7191
   422
 *
slouken@3407
   423
 *  \param data A pointer to driver-dependent window creation data
slouken@7191
   424
 *
slouken@3407
   425
 *  \return The id of the window created, or zero if window creation failed.
slouken@7191
   426
 *
slouken@3407
   427
 *  \sa SDL_DestroyWindow()
slouken@0
   428
 */
slouken@3685
   429
extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindowFrom(const void *data);
slouken@3685
   430
slouken@3685
   431
/**
slouken@4883
   432
 *  \brief Get the numeric ID of a window, for logging purposes.
slouken@3685
   433
 */
slouken@3685
   434
extern DECLSPEC Uint32 SDLCALL SDL_GetWindowID(SDL_Window * window);
slouken@3685
   435
slouken@3685
   436
/**
slouken@3685
   437
 *  \brief Get a window from a stored ID, or NULL if it doesn't exist.
slouken@3685
   438
 */
slouken@3685
   439
extern DECLSPEC SDL_Window * SDLCALL SDL_GetWindowFromID(Uint32 id);
slouken@1895
   440
slouken@1895
   441
/**
slouken@3407
   442
 *  \brief Get the window flags.
slouken@1895
   443
 */
slouken@3685
   444
extern DECLSPEC Uint32 SDLCALL SDL_GetWindowFlags(SDL_Window * window);
slouken@1895
   445
slouken@1895
   446
/**
slouken@4883
   447
 *  \brief Set the title of a window, in UTF-8 format.
slouken@7191
   448
 *
slouken@3407
   449
 *  \sa SDL_GetWindowTitle()
slouken@1895
   450
 */
slouken@3685
   451
extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_Window * window,
slouken@1895
   452
                                                const char *title);
slouken@1895
   453
slouken@1895
   454
/**
slouken@4883
   455
 *  \brief Get the title of a window, in UTF-8 format.
slouken@7191
   456
 *
slouken@3407
   457
 *  \sa SDL_SetWindowTitle()
slouken@1895
   458
 */
slouken@3685
   459
extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_Window * window);
slouken@1895
   460
slouken@1895
   461
/**
slouken@4887
   462
 *  \brief Set the icon for a window.
slouken@7191
   463
 *
philipp@7188
   464
 *  \param window The window for which the icon should be set.
slouken@4887
   465
 *  \param icon The icon for the window.
slouken@1895
   466
 */
slouken@3685
   467
extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Window * window,
slouken@2990
   468
                                               SDL_Surface * icon);
slouken@1895
   469
slouken@1895
   470
/**
slouken@5165
   471
 *  \brief Associate an arbitrary named pointer with a window.
slouken@7191
   472
 *
slouken@5165
   473
 *  \param window   The window to associate with the pointer.
slouken@5165
   474
 *  \param name     The name of the pointer.
slouken@5165
   475
 *  \param userdata The associated pointer.
slouken@5165
   476
 *
slouken@5165
   477
 *  \return The previous value associated with 'name'
slouken@5165
   478
 *
slouken@5165
   479
 *  \note The name is case-sensitive.
slouken@5165
   480
 *
slouken@3407
   481
 *  \sa SDL_GetWindowData()
slouken@1895
   482
 */
slouken@5165
   483
extern DECLSPEC void* SDLCALL SDL_SetWindowData(SDL_Window * window,
slouken@5165
   484
                                                const char *name,
slouken@5165
   485
                                                void *userdata);
slouken@1895
   486
slouken@1895
   487
/**
slouken@4883
   488
 *  \brief Retrieve the data pointer associated with a window.
slouken@7191
   489
 *
slouken@5165
   490
 *  \param window   The window to query.
slouken@5165
   491
 *  \param name     The name of the pointer.
slouken@5165
   492
 *
slouken@5165
   493
 *  \return The value associated with 'name'
slouken@7191
   494
 *
slouken@3407
   495
 *  \sa SDL_SetWindowData()
slouken@1895
   496
 */
slouken@5165
   497
extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_Window * window,
slouken@5165
   498
                                                const char *name);
slouken@1895
   499
slouken@1895
   500
/**
slouken@4883
   501
 *  \brief Set the position of a window.
slouken@7191
   502
 *
slouken@5165
   503
 *  \param window   The window to reposition.
slouken@3407
   504
 *  \param x        The x coordinate of the window, ::SDL_WINDOWPOS_CENTERED, or
slouken@3407
   505
                    ::SDL_WINDOWPOS_UNDEFINED.
slouken@3407
   506
 *  \param y        The y coordinate of the window, ::SDL_WINDOWPOS_CENTERED, or
slouken@3407
   507
                    ::SDL_WINDOWPOS_UNDEFINED.
slouken@7191
   508
 *
slouken@3407
   509
 *  \note The window coordinate origin is the upper left of the display.
slouken@7191
   510
 *
slouken@3407
   511
 *  \sa SDL_GetWindowPosition()
slouken@1895
   512
 */
slouken@3685
   513
extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_Window * window,
slouken@1895
   514
                                                   int x, int y);
slouken@1895
   515
slouken@1895
   516
/**
slouken@4883
   517
 *  \brief Get the position of a window.
slouken@7191
   518
 *
philipp@7175
   519
 *  \param window   The window to query.
aschiffler@6984
   520
 *  \param x        Pointer to variable for storing the x position, may be NULL
aschiffler@6984
   521
 *  \param y        Pointer to variable for storing the y position, may be NULL
aschiffler@6984
   522
 *
slouken@3407
   523
 *  \sa SDL_SetWindowPosition()
slouken@1895
   524
 */
slouken@3685
   525
extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_Window * window,
slouken@1895
   526
                                                   int *x, int *y);
slouken@1895
   527
slouken@1895
   528
/**
slouken@4883
   529
 *  \brief Set the size of a window's client area.
slouken@7191
   530
 *
philipp@7175
   531
 *  \param window   The window to resize.
aschiffler@6984
   532
 *  \param w        The width of the window, must be >0
aschiffler@6984
   533
 *  \param h        The height of the window, must be >0
aschiffler@6984
   534
 *
slouken@3407
   535
 *  \note You can't change the size of a fullscreen window, it automatically
slouken@3407
   536
 *        matches the size of the display mode.
slouken@7191
   537
 *
slouken@3407
   538
 *  \sa SDL_GetWindowSize()
slouken@1895
   539
 */
slouken@3685
   540
extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_Window * window, int w,
slouken@1895
   541
                                               int h);
slouken@1895
   542
slouken@1895
   543
/**
slouken@4883
   544
 *  \brief Get the size of a window's client area.
slouken@7191
   545
 *
philipp@7175
   546
 *  \param window   The window to query.
aschiffler@6984
   547
 *  \param w        Pointer to variable for storing the width, may be NULL
aschiffler@6984
   548
 *  \param h        Pointer to variable for storing the height, may be NULL
slouken@7191
   549
 *
slouken@3407
   550
 *  \sa SDL_SetWindowSize()
slouken@1895
   551
 */
slouken@3685
   552
extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_Window * window, int *w,
slouken@1895
   553
                                               int *h);
slouken@7191
   554
stopiccot@6681
   555
/**
stopiccot@6681
   556
 *  \brief Set the minimum size of a window's client area.
slouken@7191
   557
 *
philipp@7175
   558
 *  \param window    The window to set a new minimum size.
aschiffler@6984
   559
 *  \param min_w     The minimum width of the window, must be >0
aschiffler@6984
   560
 *  \param min_h     The minimum height of the window, must be >0
stopiccot@6681
   561
 *
stopiccot@6681
   562
 *  \note You can't change the minimum size of a fullscreen window, it
stopiccot@6681
   563
 *        automatically matches the size of the display mode.
stopiccot@6681
   564
 *
stopiccot@6681
   565
 *  \sa SDL_GetWindowMinimumSize()
slouken@6788
   566
 *  \sa SDL_SetWindowMaximumSize()
stopiccot@6681
   567
 */
stopiccot@6681
   568
extern DECLSPEC void SDLCALL SDL_SetWindowMinimumSize(SDL_Window * window,
stopiccot@6681
   569
                                                      int min_w, int min_h);
slouken@7191
   570
stopiccot@6681
   571
/**
stopiccot@6681
   572
 *  \brief Get the minimum size of a window's client area.
slouken@7191
   573
 *
philipp@7175
   574
 *  \param window   The window to query.
aschiffler@6984
   575
 *  \param w        Pointer to variable for storing the minimum width, may be NULL
aschiffler@6984
   576
 *  \param h        Pointer to variable for storing the minimum height, may be NULL
slouken@7191
   577
 *
slouken@6788
   578
 *  \sa SDL_GetWindowMaximumSize()
stopiccot@6681
   579
 *  \sa SDL_SetWindowMinimumSize()
stopiccot@6681
   580
 */
stopiccot@6681
   581
extern DECLSPEC void SDLCALL SDL_GetWindowMinimumSize(SDL_Window * window,
stopiccot@6681
   582
                                                      int *w, int *h);
slouken@1895
   583
slouken@1895
   584
/**
slouken@6788
   585
 *  \brief Set the maximum size of a window's client area.
slouken@6788
   586
 *
philipp@7175
   587
 *  \param window    The window to set a new maximum size.
aschiffler@6984
   588
 *  \param max_w     The maximum width of the window, must be >0
aschiffler@6984
   589
 *  \param max_h     The maximum height of the window, must be >0
aschiffler@6984
   590
 *
slouken@6788
   591
 *  \note You can't change the maximum size of a fullscreen window, it
slouken@6788
   592
 *        automatically matches the size of the display mode.
slouken@6788
   593
 *
slouken@6788
   594
 *  \sa SDL_GetWindowMaximumSize()
slouken@6788
   595
 *  \sa SDL_SetWindowMinimumSize()
slouken@6788
   596
 */
slouken@6788
   597
extern DECLSPEC void SDLCALL SDL_SetWindowMaximumSize(SDL_Window * window,
slouken@6788
   598
                                                      int max_w, int max_h);
slouken@7191
   599
slouken@6788
   600
/**
slouken@6788
   601
 *  \brief Get the maximum size of a window's client area.
slouken@7191
   602
 *
philipp@7175
   603
 *  \param window   The window to query.
aschiffler@6984
   604
 *  \param w        Pointer to variable for storing the maximum width, may be NULL
aschiffler@6984
   605
 *  \param h        Pointer to variable for storing the maximum height, may be NULL
slouken@6788
   606
 *
slouken@6788
   607
 *  \sa SDL_GetWindowMinimumSize()
slouken@6788
   608
 *  \sa SDL_SetWindowMaximumSize()
slouken@6788
   609
 */
slouken@6788
   610
extern DECLSPEC void SDLCALL SDL_GetWindowMaximumSize(SDL_Window * window,
slouken@6788
   611
                                                      int *w, int *h);
slouken@6788
   612
slouken@6788
   613
/**
icculus@6422
   614
 *  \brief Set the border state of a window.
icculus@6422
   615
 *
icculus@6422
   616
 *  This will add or remove the window's SDL_WINDOW_BORDERLESS flag and
icculus@6422
   617
 *  add or remove the border from the actual window. This is a no-op if the
icculus@6422
   618
 *  window's border already matches the requested state.
icculus@6422
   619
 *
icculus@6422
   620
 *  \param window The window of which to change the border state.
icculus@6422
   621
 *  \param bordered SDL_FALSE to remove border, SDL_TRUE to add border.
icculus@6422
   622
 *
icculus@6422
   623
 *  \note You can't change the border state of a fullscreen window.
slouken@7191
   624
 *
icculus@6422
   625
 *  \sa SDL_GetWindowFlags()
icculus@6422
   626
 */
icculus@6422
   627
extern DECLSPEC void SDLCALL SDL_SetWindowBordered(SDL_Window * window,
icculus@6422
   628
                                                   SDL_bool bordered);
icculus@6422
   629
icculus@6422
   630
/**
slouken@4883
   631
 *  \brief Show a window.
slouken@7191
   632
 *
slouken@3407
   633
 *  \sa SDL_HideWindow()
slouken@1895
   634
 */
slouken@3685
   635
extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_Window * window);
slouken@1895
   636
slouken@1895
   637
/**
slouken@4883
   638
 *  \brief Hide a window.
slouken@7191
   639
 *
slouken@3407
   640
 *  \sa SDL_ShowWindow()
slouken@1895
   641
 */
slouken@3685
   642
extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_Window * window);
slouken@1895
   643
slouken@1895
   644
/**
slouken@4883
   645
 *  \brief Raise a window above other windows and set the input focus.
slouken@1895
   646
 */
slouken@3685
   647
extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_Window * window);
slouken@1895
   648
slouken@1895
   649
/**
slouken@4883
   650
 *  \brief Make a window as large as possible.
slouken@7191
   651
 *
slouken@3407
   652
 *  \sa SDL_RestoreWindow()
slouken@1895
   653
 */
slouken@3685
   654
extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_Window * window);
slouken@1895
   655
slouken@1895
   656
/**
slouken@4883
   657
 *  \brief Minimize a window to an iconic representation.
slouken@7191
   658
 *
slouken@3407
   659
 *  \sa SDL_RestoreWindow()
slouken@1895
   660
 */
slouken@3685
   661
extern DECLSPEC void SDLCALL SDL_MinimizeWindow(SDL_Window * window);
slouken@1895
   662
slouken@1895
   663
/**
slouken@3407
   664
 *  \brief Restore the size and position of a minimized or maximized window.
slouken@7191
   665
 *
slouken@3407
   666
 *  \sa SDL_MaximizeWindow()
slouken@3407
   667
 *  \sa SDL_MinimizeWindow()
slouken@1895
   668
 */
slouken@3685
   669
extern DECLSPEC void SDLCALL SDL_RestoreWindow(SDL_Window * window);
slouken@1895
   670
slouken@1895
   671
/**
slouken@4883
   672
 *  \brief Set a window's fullscreen state.
slouken@7191
   673
 *
slouken@3407
   674
 *  \return 0 on success, or -1 if setting the display mode failed.
slouken@7191
   675
 *
slouken@3522
   676
 *  \sa SDL_SetWindowDisplayMode()
slouken@3522
   677
 *  \sa SDL_GetWindowDisplayMode()
slouken@1895
   678
 */
slouken@3685
   679
extern DECLSPEC int SDLCALL SDL_SetWindowFullscreen(SDL_Window * window,
slouken@6755
   680
                                                    Uint32 flags);
slouken@1895
   681
slouken@1895
   682
/**
slouken@5546
   683
 *  \brief Get the SDL surface associated with the window.
slouken@5166
   684
 *
slouken@7191
   685
 *  \return The window's framebuffer surface, or NULL on error.
slouken@5546
   686
 *
slouken@5546
   687
 *  A new surface will be created with the optimal format for the window,
slouken@5546
   688
 *  if necessary. This surface will be freed when the window is destroyed.
slouken@5166
   689
 *
slouken@5166
   690
 *  \note You may not combine this with 3D or the rendering API on this window.
slouken@5166
   691
 *
slouken@5166
   692
 *  \sa SDL_UpdateWindowSurface()
slouken@5166
   693
 *  \sa SDL_UpdateWindowSurfaceRects()
slouken@5166
   694
 */
slouken@5166
   695
extern DECLSPEC SDL_Surface * SDLCALL SDL_GetWindowSurface(SDL_Window * window);
slouken@5166
   696
slouken@5166
   697
/**
slouken@5166
   698
 *  \brief Copy the window surface to the screen.
slouken@5166
   699
 *
slouken@5166
   700
 *  \return 0 on success, or -1 on error.
slouken@5166
   701
 *
slouken@5166
   702
 *  \sa SDL_GetWindowSurface()
slouken@5166
   703
 *  \sa SDL_UpdateWindowSurfaceRects()
slouken@5166
   704
 */
slouken@5166
   705
extern DECLSPEC int SDLCALL SDL_UpdateWindowSurface(SDL_Window * window);
slouken@5166
   706
slouken@5166
   707
/**
slouken@5166
   708
 *  \brief Copy a number of rectangles on the window surface to the screen.
slouken@5166
   709
 *
slouken@5166
   710
 *  \return 0 on success, or -1 on error.
slouken@5166
   711
 *
slouken@5166
   712
 *  \sa SDL_GetWindowSurface()
slouken@5166
   713
 *  \sa SDL_UpdateWindowSurfaceRect()
slouken@5166
   714
 */
slouken@5166
   715
extern DECLSPEC int SDLCALL SDL_UpdateWindowSurfaceRects(SDL_Window * window,
slouken@7014
   716
                                                         const SDL_Rect * rects,
slouken@5297
   717
                                                         int numrects);
slouken@5166
   718
slouken@5166
   719
/**
slouken@4883
   720
 *  \brief Set a window's input grab mode.
slouken@7191
   721
 *
philipp@7188
   722
 *  \param window The window for which the input grab mode should be set.
slouken@5403
   723
 *  \param grabbed This is SDL_TRUE to grab input, and SDL_FALSE to release input.
slouken@7191
   724
 *
icculus@9447
   725
 *  If the caller enables a grab while another window is currently grabbed,
icculus@9447
   726
 *  the other window loses its grab in favor of the caller's window.
icculus@9447
   727
 *
slouken@3407
   728
 *  \sa SDL_GetWindowGrab()
slouken@1895
   729
 */
slouken@3685
   730
extern DECLSPEC void SDLCALL SDL_SetWindowGrab(SDL_Window * window,
slouken@5403
   731
                                               SDL_bool grabbed);
slouken@1895
   732
slouken@1895
   733
/**
slouken@4883
   734
 *  \brief Get a window's input grab mode.
slouken@7191
   735
 *
slouken@5403
   736
 *  \return This returns SDL_TRUE if input is grabbed, and SDL_FALSE otherwise.
slouken@7191
   737
 *
slouken@3407
   738
 *  \sa SDL_SetWindowGrab()
slouken@1895
   739
 */
slouken@5403
   740
extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowGrab(SDL_Window * window);
slouken@1895
   741
slouken@1895
   742
/**
icculus@9447
   743
 *  \brief Get the window that currently has an input grab enabled.
icculus@9447
   744
 *
icculus@9447
   745
 *  \return This returns the window if input is grabbed, and NULL otherwise.
icculus@9447
   746
 *
icculus@9447
   747
 *  \sa SDL_SetWindowGrab()
icculus@9447
   748
 */
icculus@9447
   749
extern DECLSPEC SDL_Window * SDLCALL SDL_GetGrabbedWindow(void);
icculus@9447
   750
icculus@9447
   751
/**
slouken@5466
   752
 *  \brief Set the brightness (gamma correction) for a window.
slouken@7191
   753
 *
slouken@5466
   754
 *  \return 0 on success, or -1 if setting the brightness isn't supported.
slouken@7191
   755
 *
slouken@5466
   756
 *  \sa SDL_GetWindowBrightness()
slouken@5466
   757
 *  \sa SDL_SetWindowGammaRamp()
slouken@5466
   758
 */
slouken@5466
   759
extern DECLSPEC int SDLCALL SDL_SetWindowBrightness(SDL_Window * window, float brightness);
slouken@5466
   760
slouken@5466
   761
/**
slouken@5466
   762
 *  \brief Get the brightness (gamma correction) for a window.
slouken@7191
   763
 *
slouken@5466
   764
 *  \return The last brightness value passed to SDL_SetWindowBrightness()
slouken@7191
   765
 *
slouken@5466
   766
 *  \sa SDL_SetWindowBrightness()
slouken@5466
   767
 */
slouken@5466
   768
extern DECLSPEC float SDLCALL SDL_GetWindowBrightness(SDL_Window * window);
slouken@5466
   769
slouken@5466
   770
/**
slouken@5466
   771
 *  \brief Set the gamma ramp for a window.
slouken@7191
   772
 *
philipp@7188
   773
 *  \param window The window for which the gamma ramp should be set.
slouken@5466
   774
 *  \param red The translation table for the red channel, or NULL.
slouken@5466
   775
 *  \param green The translation table for the green channel, or NULL.
slouken@5466
   776
 *  \param blue The translation table for the blue channel, or NULL.
slouken@7191
   777
 *
slouken@5466
   778
 *  \return 0 on success, or -1 if gamma ramps are unsupported.
slouken@7191
   779
 *
slouken@5466
   780
 *  Set the gamma translation table for the red, green, and blue channels
slouken@5466
   781
 *  of the video hardware.  Each table is an array of 256 16-bit quantities,
slouken@5466
   782
 *  representing a mapping between the input and output for that channel.
slouken@5466
   783
 *  The input is the index into the array, and the output is the 16-bit
slouken@5466
   784
 *  gamma value at that index, scaled to the output color precision.
slouken@5466
   785
 *
slouken@5504
   786
 *  \sa SDL_GetWindowGammaRamp()
slouken@5466
   787
 */
slouken@5466
   788
extern DECLSPEC int SDLCALL SDL_SetWindowGammaRamp(SDL_Window * window,
slouken@5466
   789
                                                   const Uint16 * red,
slouken@5466
   790
                                                   const Uint16 * green,
slouken@5466
   791
                                                   const Uint16 * blue);
slouken@5466
   792
slouken@5466
   793
/**
slouken@5466
   794
 *  \brief Get the gamma ramp for a window.
slouken@7191
   795
 *
philipp@7188
   796
 *  \param window The window from which the gamma ramp should be queried.
slouken@7191
   797
 *  \param red   A pointer to a 256 element array of 16-bit quantities to hold
slouken@5466
   798
 *               the translation table for the red channel, or NULL.
slouken@7191
   799
 *  \param green A pointer to a 256 element array of 16-bit quantities to hold
slouken@5466
   800
 *               the translation table for the green channel, or NULL.
slouken@7191
   801
 *  \param blue  A pointer to a 256 element array of 16-bit quantities to hold
slouken@5466
   802
 *               the translation table for the blue channel, or NULL.
slouken@7191
   803
 *
slouken@5466
   804
 *  \return 0 on success, or -1 if gamma ramps are unsupported.
slouken@7191
   805
 *
slouken@5466
   806
 *  \sa SDL_SetWindowGammaRamp()
slouken@5466
   807
 */
slouken@5466
   808
extern DECLSPEC int SDLCALL SDL_GetWindowGammaRamp(SDL_Window * window,
slouken@5466
   809
                                                   Uint16 * red,
slouken@5466
   810
                                                   Uint16 * green,
slouken@5466
   811
                                                   Uint16 * blue);
slouken@5466
   812
icculus@8937
   813
/**
icculus@8937
   814
 *  \brief Possible return values from the SDL_HitTest callback.
icculus@8937
   815
 *
icculus@8937
   816
 *  \sa SDL_HitTest
icculus@8937
   817
 */
icculus@8935
   818
typedef enum
icculus@8935
   819
{
icculus@8935
   820
    SDL_HITTEST_NORMAL,  /**< Region is normal. No special properties. */
icculus@8935
   821
    SDL_HITTEST_DRAGGABLE,  /**< Region can drag entire window. */
ionut@8946
   822
    SDL_HITTEST_RESIZE_TOPLEFT,
ionut@8946
   823
    SDL_HITTEST_RESIZE_TOP,
ionut@8946
   824
    SDL_HITTEST_RESIZE_TOPRIGHT,
ionut@8946
   825
    SDL_HITTEST_RESIZE_RIGHT,
ionut@8946
   826
    SDL_HITTEST_RESIZE_BOTTOMRIGHT,
ionut@8946
   827
    SDL_HITTEST_RESIZE_BOTTOM,
ionut@8946
   828
    SDL_HITTEST_RESIZE_BOTTOMLEFT,
ionut@8946
   829
    SDL_HITTEST_RESIZE_LEFT
icculus@8935
   830
} SDL_HitTestResult;
icculus@8935
   831
icculus@8937
   832
/**
icculus@8937
   833
 *  \brief Callback used for hit-testing.
icculus@8937
   834
 *
icculus@8937
   835
 *  \sa SDL_SetWindowHitTest
icculus@8937
   836
 */
icculus@8935
   837
typedef SDL_HitTestResult (SDLCALL *SDL_HitTest)(SDL_Window *win,
icculus@8935
   838
                                                 const SDL_Point *area,
icculus@8935
   839
                                                 void *data);
icculus@8935
   840
slouken@5466
   841
/**
icculus@8935
   842
 *  \brief Provide a callback that decides if a window region has special properties.
icculus@8931
   843
 *
icculus@8935
   844
 *  Normally windows are dragged and resized by decorations provided by the
icculus@8935
   845
 *  system window manager (a title bar, borders, etc), but for some apps, it
icculus@8935
   846
 *  makes sense to drag them from somewhere else inside the window itself; for
icculus@8935
   847
 *  example, one might have a borderless window that wants to be draggable
icculus@8935
   848
 *  from any part, or simulate its own title bar, etc.
icculus@8931
   849
 *
icculus@8935
   850
 *  This function lets the app provide a callback that designates pieces of
icculus@8935
   851
 *  a given window as special. This callback is run during event processing
icculus@8935
   852
 *  if we need to tell the OS to treat a region of the window specially; the
icculus@8935
   853
 *  use of this callback is known as "hit testing."
icculus@8931
   854
 *
icculus@8931
   855
 *  Mouse input may not be delivered to your application if it is within
icculus@8935
   856
 *  a special area; the OS will often apply that input to moving the window or
icculus@8935
   857
 *  resizing the window and not deliver it to the application.
icculus@8935
   858
 *
icculus@8935
   859
 *  Specifying NULL for a callback disables hit-testing. Hit-testing is
icculus@8935
   860
 *  disabled by default.
icculus@8931
   861
 *
icculus@8931
   862
 *  Platforms that don't support this functionality will return -1
icculus@8935
   863
 *  unconditionally, even if you're attempting to disable hit-testing.
icculus@8931
   864
 *
icculus@8937
   865
 *  Your callback may fire at any time, and its firing does not indicate any
icculus@8937
   866
 *  specific behavior (for example, on Windows, this certainly might fire
icculus@8937
   867
 *  when the OS is deciding whether to drag your window, but it fires for lots
icculus@8937
   868
 *  of other reasons, too, some unrelated to anything you probably care about
icculus@8937
   869
 *  _and when the mouse isn't actually at the location it is testing_).
icculus@8937
   870
 *  Since this can fire at any time, you should try to keep your callback
icculus@8937
   871
 *  efficient, devoid of allocations, etc.
icculus@8935
   872
 *
icculus@8935
   873
 *  \param window The window to set hit-testing on.
icculus@8935
   874
 *  \param callback The callback to call when doing a hit-test.
icculus@8935
   875
 *  \param callback_data An app-defined void pointer passed to the callback.
icculus@8931
   876
 *  \return 0 on success, -1 on error (including unsupported).
icculus@8931
   877
 */
icculus@8935
   878
extern DECLSPEC int SDLCALL SDL_SetWindowHitTest(SDL_Window * window,
icculus@8935
   879
                                                 SDL_HitTest callback,
icculus@8935
   880
                                                 void *callback_data);
icculus@8931
   881
icculus@8931
   882
/**
slouken@3407
   883
 *  \brief Destroy a window.
slouken@1895
   884
 */
slouken@3685
   885
extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_Window * window);
slouken@1895
   886
slouken@0
   887
slouken@3025
   888
/**
slouken@4875
   889
 *  \brief Returns whether the screensaver is currently enabled (default on).
slouken@7191
   890
 *
slouken@3407
   891
 *  \sa SDL_EnableScreenSaver()
slouken@3407
   892
 *  \sa SDL_DisableScreenSaver()
slouken@3025
   893
 */
couriersud@3033
   894
extern DECLSPEC SDL_bool SDLCALL SDL_IsScreenSaverEnabled(void);
slouken@3025
   895
slouken@3025
   896
/**
slouken@3407
   897
 *  \brief Allow the screen to be blanked by a screensaver
slouken@7191
   898
 *
slouken@3407
   899
 *  \sa SDL_IsScreenSaverEnabled()
slouken@3407
   900
 *  \sa SDL_DisableScreenSaver()
slouken@3025
   901
 */
couriersud@3033
   902
extern DECLSPEC void SDLCALL SDL_EnableScreenSaver(void);
slouken@3025
   903
slouken@3025
   904
/**
slouken@3407
   905
 *  \brief Prevent the screen from being blanked by a screensaver
slouken@7191
   906
 *
slouken@3407
   907
 *  \sa SDL_IsScreenSaverEnabled()
slouken@3407
   908
 *  \sa SDL_EnableScreenSaver()
slouken@3025
   909
 */
couriersud@3033
   910
extern DECLSPEC void SDLCALL SDL_DisableScreenSaver(void);
slouken@3025
   911
slouken@0
   912
slouken@3407
   913
/**
slouken@3407
   914
 *  \name OpenGL support functions
slouken@3407
   915
 */
gabomdq@7678
   916
/* @{ */
slouken@0
   917
slouken@1895
   918
/**
slouken@3407
   919
 *  \brief Dynamically load an OpenGL library.
slouken@7191
   920
 *
slouken@7191
   921
 *  \param path The platform dependent OpenGL library name, or NULL to open the
slouken@3407
   922
 *              default OpenGL library.
slouken@7191
   923
 *
slouken@3407
   924
 *  \return 0 on success, or -1 if the library couldn't be loaded.
slouken@7191
   925
 *
slouken@3407
   926
 *  This should be done after initializing the video driver, but before
slouken@3407
   927
 *  creating any OpenGL windows.  If no OpenGL library is loaded, the default
slouken@3407
   928
 *  library will be loaded upon creation of the first OpenGL window.
slouken@7191
   929
 *
slouken@3407
   930
 *  \note If you do this, you need to retrieve all of the GL functions used in
slouken@3407
   931
 *        your program from the dynamic library using SDL_GL_GetProcAddress().
slouken@7191
   932
 *
slouken@3407
   933
 *  \sa SDL_GL_GetProcAddress()
slouken@3407
   934
 *  \sa SDL_GL_UnloadLibrary()
slouken@0
   935
 */
slouken@337
   936
extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path);
slouken@0
   937
slouken@1895
   938
/**
slouken@3407
   939
 *  \brief Get the address of an OpenGL function.
slouken@0
   940
 */
slouken@1895
   941
extern DECLSPEC void *SDLCALL SDL_GL_GetProcAddress(const char *proc);
slouken@0
   942
slouken@1895
   943
/**
slouken@3407
   944
 *  \brief Unload the OpenGL library previously loaded by SDL_GL_LoadLibrary().
slouken@7191
   945
 *
slouken@3407
   946
 *  \sa SDL_GL_LoadLibrary()
slouken@3057
   947
 */
slouken@3057
   948
extern DECLSPEC void SDLCALL SDL_GL_UnloadLibrary(void);
slouken@3057
   949
slouken@3057
   950
/**
slouken@7191
   951
 *  \brief Return true if an OpenGL extension is supported for the current
slouken@3407
   952
 *         context.
slouken@1926
   953
 */
slouken@1926
   954
extern DECLSPEC SDL_bool SDLCALL SDL_GL_ExtensionSupported(const char
slouken@1926
   955
                                                           *extension);
slouken@1926
   956
slouken@1926
   957
/**
jorgen@8145
   958
 *  \brief Reset all previously set OpenGL context attributes to their default values
jorgen@8145
   959
 */
jorgen@8145
   960
extern DECLSPEC void SDLCALL SDL_GL_ResetAttributes(void);
jorgen@8145
   961
jorgen@8145
   962
/**
slouken@3407
   963
 *  \brief Set an OpenGL window attribute before window creation.
slouken@0
   964
 */
slouken@337
   965
extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value);
slouken@0
   966
slouken@1895
   967
/**
slouken@3407
   968
 *  \brief Get the actual value for an attribute from the current context.
slouken@0
   969
 */
slouken@1936
   970
extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int *value);
slouken@0
   971
slouken@1895
   972
/**
slouken@7191
   973
 *  \brief Create an OpenGL context for use with an OpenGL window, and make it
slouken@3407
   974
 *         current.
slouken@7191
   975
 *
slouken@3407
   976
 *  \sa SDL_GL_DeleteContext()
slouken@1895
   977
 */
slouken@3685
   978
extern DECLSPEC SDL_GLContext SDLCALL SDL_GL_CreateContext(SDL_Window *
slouken@3685
   979
                                                           window);
slouken@1895
   980
slouken@1895
   981
/**
slouken@3407
   982
 *  \brief Set up an OpenGL context for rendering into an OpenGL window.
slouken@7191
   983
 *
slouken@3407
   984
 *  \note The context must have been created with a compatible window.
slouken@1895
   985
 */
slouken@3685
   986
extern DECLSPEC int SDLCALL SDL_GL_MakeCurrent(SDL_Window * window,
slouken@1895
   987
                                               SDL_GLContext context);
slouken@1895
   988
slouken@1895
   989
/**
slouken@7412
   990
 *  \brief Get the currently active OpenGL window.
slouken@7412
   991
 */
slouken@7412
   992
extern DECLSPEC SDL_Window* SDLCALL SDL_GL_GetCurrentWindow(void);
slouken@7412
   993
slouken@7412
   994
/**
slouken@7412
   995
 *  \brief Get the currently active OpenGL context.
slouken@7412
   996
 */
slouken@7412
   997
extern DECLSPEC SDL_GLContext SDLCALL SDL_GL_GetCurrentContext(void);
slouken@7412
   998
slouken@7412
   999
/**
urkle@7746
  1000
 *  \brief Get the size of a window's underlying drawable (for use with glViewport).
urkle@7746
  1001
 *
philipp@7752
  1002
 *  \param window   Window from which the drawable size should be queried
urkle@7746
  1003
 *  \param w        Pointer to variable for storing the width, may be NULL
urkle@7746
  1004
 *  \param h        Pointer to variable for storing the height, may be NULL
urkle@7746
  1005
 *
philipp@8777
  1006
 * This may differ from SDL_GetWindowSize() if we're rendering to a high-DPI
urkle@7746
  1007
 * drawable, i.e. the window was created with SDL_WINDOW_ALLOW_HIGHDPI on a
urkle@7746
  1008
 * platform with high-DPI support (Apple calls this "Retina"), and not disabled
urkle@7746
  1009
 * by the SDL_HINT_VIDEO_HIGHDPI_DISABLED hint.
urkle@7746
  1010
 *
urkle@7746
  1011
 *  \sa SDL_GetWindowSize()
urkle@7746
  1012
 *  \sa SDL_CreateWindow()
urkle@7746
  1013
 */
urkle@7746
  1014
extern DECLSPEC void SDLCALL SDL_GL_GetDrawableSize(SDL_Window * window, int *w,
urkle@7746
  1015
                                                    int *h);
urkle@7746
  1016
urkle@7746
  1017
/**
slouken@3407
  1018
 *  \brief Set the swap interval for the current OpenGL context.
slouken@7191
  1019
 *
slouken@3407
  1020
 *  \param interval 0 for immediate updates, 1 for updates synchronized with the
icculus@6382
  1021
 *                  vertical retrace. If the system supports it, you may
icculus@6382
  1022
 *                  specify -1 to allow late swaps to happen immediately
icculus@6382
  1023
 *                  instead of waiting for the next retrace.
slouken@7191
  1024
 *
slouken@3407
  1025
 *  \return 0 on success, or -1 if setting the swap interval is not supported.
slouken@7191
  1026
 *
slouken@3407
  1027
 *  \sa SDL_GL_GetSwapInterval()
slouken@1895
  1028
 */
slouken@1895
  1029
extern DECLSPEC int SDLCALL SDL_GL_SetSwapInterval(int interval);
slouken@1895
  1030
slouken@1895
  1031
/**
slouken@3407
  1032
 *  \brief Get the swap interval for the current OpenGL context.
slouken@7191
  1033
 *
slouken@7191
  1034
 *  \return 0 if there is no vertical retrace synchronization, 1 if the buffer
icculus@6382
  1035
 *          swap is synchronized with the vertical retrace, and -1 if late
icculus@6382
  1036
 *          swaps happen immediately instead of waiting for the next retrace.
icculus@6382
  1037
 *          If the system can't determine the swap interval, or there isn't a
icculus@6382
  1038
 *          valid current context, this will return 0 as a safe default.
slouken@7191
  1039
 *
slouken@3407
  1040
 *  \sa SDL_GL_SetSwapInterval()
slouken@1895
  1041
 */
slouken@1895
  1042
extern DECLSPEC int SDLCALL SDL_GL_GetSwapInterval(void);
slouken@1895
  1043
slouken@1895
  1044
/**
slouken@7191
  1045
 * \brief Swap the OpenGL buffers for a window, if double-buffering is
slouken@3407
  1046
 *        supported.
slouken@0
  1047
 */
slouken@3685
  1048
extern DECLSPEC void SDLCALL SDL_GL_SwapWindow(SDL_Window * window);
slouken@0
  1049
slouken@1895
  1050
/**
slouken@3407
  1051
 *  \brief Delete an OpenGL context.
slouken@7191
  1052
 *
slouken@3407
  1053
 *  \sa SDL_GL_CreateContext()
slouken@0
  1054
 */
slouken@1895
  1055
extern DECLSPEC void SDLCALL SDL_GL_DeleteContext(SDL_GLContext context);
slouken@0
  1056
gabomdq@7678
  1057
/* @} *//* OpenGL support functions */
slouken@3407
  1058
slouken@0
  1059
slouken@0
  1060
/* Ends C function definitions when using C++ */
slouken@0
  1061
#ifdef __cplusplus
slouken@0
  1062
}
slouken@0
  1063
#endif
slouken@0
  1064
#include "close_code.h"
slouken@0
  1065
slouken@0
  1066
#endif /* _SDL_video_h */
slouken@1895
  1067
slouken@1895
  1068
/* vi: set ts=4 sw=4 expandtab: */