| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2011 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| |
| /** |
| * \file SDL_video.h |
| * |
| * Header file for SDL video functions. |
| */ |
| |
| #ifndef _SDL_video_h |
| #define _SDL_video_h |
| |
| #include "SDL_stdinc.h" |
| #include "SDL_pixels.h" |
| #include "SDL_rect.h" |
| #include "SDL_surface.h" |
| |
| #include "begin_code.h" |
| /* Set up for C function definitions, even when using C++ */ |
| #ifdef __cplusplus |
| /* *INDENT-OFF* */ |
| extern "C" { |
| /* *INDENT-ON* */ |
| #endif |
| |
| /** |
| * \brief The structure that defines a display mode |
| * |
| * \sa SDL_GetNumDisplayModes() |
| * \sa SDL_GetDisplayMode() |
| * \sa SDL_GetDesktopDisplayMode() |
| * \sa SDL_GetCurrentDisplayMode() |
| * \sa SDL_GetClosestDisplayMode() |
| * \sa SDL_SetWindowDisplayMode() |
| * \sa SDL_GetWindowDisplayMode() |
| */ |
| typedef struct |
| { |
| Uint32 format; /**< pixel format */ |
| int w; /**< width */ |
| int h; /**< height */ |
| int refresh_rate; /**< refresh rate (or zero for unspecified) */ |
| void *driverdata; /**< driver-specific data, initialize to 0 */ |
| } SDL_DisplayMode; |
| |
| /** |
| * \brief The type used to identify a window |
| * |
| * \sa SDL_CreateWindow() |
| * \sa SDL_CreateWindowFrom() |
| * \sa SDL_DestroyWindow() |
| * \sa SDL_GetWindowData() |
| * \sa SDL_GetWindowFlags() |
| * \sa SDL_GetWindowGrab() |
| * \sa SDL_GetWindowPosition() |
| * \sa SDL_GetWindowSize() |
| * \sa SDL_GetWindowTitle() |
| * \sa SDL_HideWindow() |
| * \sa SDL_MaximizeWindow() |
| * \sa SDL_MinimizeWindow() |
| * \sa SDL_RaiseWindow() |
| * \sa SDL_RestoreWindow() |
| * \sa SDL_SetWindowData() |
| * \sa SDL_SetWindowFullscreen() |
| * \sa SDL_SetWindowGrab() |
| * \sa SDL_SetWindowIcon() |
| * \sa SDL_SetWindowPosition() |
| * \sa SDL_SetWindowSize() |
| * \sa SDL_SetWindowTitle() |
| * \sa SDL_ShowWindow() |
| */ |
| typedef struct SDL_Window SDL_Window; |
| |
| /** |
| * \brief The flags on a window |
| * |
| * \sa SDL_GetWindowFlags() |
| */ |
| typedef enum |
| { |
| SDL_WINDOW_FULLSCREEN = 0x00000001, /**< fullscreen window */ |
| SDL_WINDOW_OPENGL = 0x00000002, /**< window usable with OpenGL context */ |
| SDL_WINDOW_SHOWN = 0x00000004, /**< window is visible */ |
| SDL_WINDOW_HIDDEN = 0x00000008, /**< window is not visible */ |
| SDL_WINDOW_BORDERLESS = 0x00000010, /**< no window decoration */ |
| SDL_WINDOW_RESIZABLE = 0x00000020, /**< window can be resized */ |
| SDL_WINDOW_MINIMIZED = 0x00000040, /**< window is minimized */ |
| SDL_WINDOW_MAXIMIZED = 0x00000080, /**< window is maximized */ |
| SDL_WINDOW_INPUT_GRABBED = 0x00000100, /**< window has grabbed input focus */ |
| SDL_WINDOW_INPUT_FOCUS = 0x00000200, /**< window has input focus */ |
| SDL_WINDOW_MOUSE_FOCUS = 0x00000400, /**< window has mouse focus */ |
| SDL_WINDOW_FOREIGN = 0x00000800 /**< window not created by SDL */ |
| } SDL_WindowFlags; |
| |
| /** |
| * \brief Used to indicate that you don't care what the window position is. |
| */ |
| #define SDL_WINDOWPOS_UNDEFINED_MASK 0x1FFF0000 |
| #define SDL_WINDOWPOS_UNDEFINED_DISPLAY(X) (SDL_WINDOWPOS_UNDEFINED_MASK|(X)) |
| #define SDL_WINDOWPOS_UNDEFINED SDL_WINDOWPOS_UNDEFINED_DISPLAY(0) |
| #define SDL_WINDOWPOS_ISUNDEFINED(X) \ |
| (((X)&0xFFFF0000) == SDL_WINDOWPOS_UNDEFINED_MASK) |
| |
| /** |
| * \brief Used to indicate that the window position should be centered. |
| */ |
| #define SDL_WINDOWPOS_CENTERED_MASK 0x2FFF0000 |
| #define SDL_WINDOWPOS_CENTERED_DISPLAY(X) (SDL_WINDOWPOS_CENTERED_MASK|(X)) |
| #define SDL_WINDOWPOS_CENTERED SDL_WINDOWPOS_CENTERED_DISPLAY(0) |
| #define SDL_WINDOWPOS_ISCENTERED(X) \ |
| (((X)&0xFFFF0000) == SDL_WINDOWPOS_CENTERED_MASK) |
| |
| /** |
| * \brief Event subtype for window events |
| */ |
| typedef enum |
| { |
| SDL_WINDOWEVENT_NONE, /**< Never used */ |
| SDL_WINDOWEVENT_SHOWN, /**< Window has been shown */ |
| SDL_WINDOWEVENT_HIDDEN, /**< Window has been hidden */ |
| SDL_WINDOWEVENT_EXPOSED, /**< Window has been exposed and should be |
| redrawn */ |
| SDL_WINDOWEVENT_MOVED, /**< Window has been moved to data1, data2 |
| */ |
| SDL_WINDOWEVENT_RESIZED, /**< Window has been resized to data1xdata2 */ |
| 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. */ |
| SDL_WINDOWEVENT_MINIMIZED, /**< Window has been minimized */ |
| SDL_WINDOWEVENT_MAXIMIZED, /**< Window has been maximized */ |
| SDL_WINDOWEVENT_RESTORED, /**< Window has been restored to normal size |
| and position */ |
| SDL_WINDOWEVENT_ENTER, /**< Window has gained mouse focus */ |
| SDL_WINDOWEVENT_LEAVE, /**< Window has lost mouse focus */ |
| SDL_WINDOWEVENT_FOCUS_GAINED, /**< Window has gained keyboard focus */ |
| SDL_WINDOWEVENT_FOCUS_LOST, /**< Window has lost keyboard focus */ |
| SDL_WINDOWEVENT_CLOSE /**< The window manager requests that the |
| window be closed */ |
| } SDL_WindowEventID; |
| |
| /** |
| * \brief An opaque handle to an OpenGL context. |
| */ |
| typedef void *SDL_GLContext; |
| |
| /** |
| * \brief OpenGL configuration attributes |
| */ |
| typedef enum |
| { |
| SDL_GL_RED_SIZE, |
| SDL_GL_GREEN_SIZE, |
| SDL_GL_BLUE_SIZE, |
| SDL_GL_ALPHA_SIZE, |
| SDL_GL_BUFFER_SIZE, |
| SDL_GL_DOUBLEBUFFER, |
| SDL_GL_DEPTH_SIZE, |
| SDL_GL_STENCIL_SIZE, |
| SDL_GL_ACCUM_RED_SIZE, |
| SDL_GL_ACCUM_GREEN_SIZE, |
| SDL_GL_ACCUM_BLUE_SIZE, |
| SDL_GL_ACCUM_ALPHA_SIZE, |
| SDL_GL_STEREO, |
| SDL_GL_MULTISAMPLEBUFFERS, |
| SDL_GL_MULTISAMPLESAMPLES, |
| SDL_GL_ACCELERATED_VISUAL, |
| SDL_GL_RETAINED_BACKING, |
| SDL_GL_CONTEXT_MAJOR_VERSION, |
| SDL_GL_CONTEXT_MINOR_VERSION |
| } SDL_GLattr; |
| |
| |
| /* Function prototypes */ |
| |
| /** |
| * \brief Get the number of video drivers compiled into SDL |
| * |
| * \sa SDL_GetVideoDriver() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetNumVideoDrivers(void); |
| |
| /** |
| * \brief Get the name of a built in video driver. |
| * |
| * \note The video drivers are presented in the order in which they are |
| * normally checked during initialization. |
| * |
| * \sa SDL_GetNumVideoDrivers() |
| */ |
| extern DECLSPEC const char *SDLCALL SDL_GetVideoDriver(int index); |
| |
| /** |
| * \brief Initialize the video subsystem, optionally specifying a video driver. |
| * |
| * \param driver_name Initialize a specific driver by name, or NULL for the |
| * default video driver. |
| * |
| * \return 0 on success, -1 on error |
| * |
| * This function initializes the video subsystem; setting up a connection |
| * to the window manager, etc, and determines the available display modes |
| * and pixel formats, but does not initialize a window or graphics mode. |
| * |
| * \sa SDL_VideoQuit() |
| */ |
| extern DECLSPEC int SDLCALL SDL_VideoInit(const char *driver_name); |
| |
| /** |
| * \brief Shuts down the video subsystem. |
| * |
| * This function closes all windows, and restores the original video mode. |
| * |
| * \sa SDL_VideoInit() |
| */ |
| extern DECLSPEC void SDLCALL SDL_VideoQuit(void); |
| |
| /** |
| * \brief Returns the name of the currently initialized video driver. |
| * |
| * \return The name of the current video driver or NULL if no driver |
| * has been initialized |
| * |
| * \sa SDL_GetNumVideoDrivers() |
| * \sa SDL_GetVideoDriver() |
| */ |
| extern DECLSPEC const char *SDLCALL SDL_GetCurrentVideoDriver(void); |
| |
| /** |
| * \brief Returns the number of available video displays. |
| * |
| * \sa SDL_GetDisplayBounds() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetNumVideoDisplays(void); |
| |
| /** |
| * \brief Get the desktop area represented by a display, with the primary |
| * display located at 0,0 |
| * |
| * \return 0 on success, or -1 if the index is out of range. |
| * |
| * \sa SDL_GetNumVideoDisplays() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect); |
| |
| /** |
| * \brief Returns the number of available display modes. |
| * |
| * \sa SDL_GetDisplayMode() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetNumDisplayModes(int displayIndex); |
| |
| /** |
| * \brief Fill in information about a specific display mode. |
| * |
| * \note The display modes are sorted in this priority: |
| * \li bits per pixel -> more colors to fewer colors |
| * \li width -> largest to smallest |
| * \li height -> largest to smallest |
| * \li refresh rate -> highest to lowest |
| * |
| * \sa SDL_GetNumDisplayModes() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetDisplayMode(int displayIndex, int modeIndex, |
| SDL_DisplayMode * mode); |
| |
| /** |
| * \brief Fill in information about the desktop display mode. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode); |
| |
| /** |
| * \brief Fill in information about the current display mode. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode); |
| |
| |
| /** |
| * \brief Get the closest match to the requested display mode. |
| * |
| * \param mode The desired display mode |
| * \param closest A pointer to a display mode to be filled in with the closest |
| * match of the available display modes. |
| * |
| * \return The passed in value \c closest, or NULL if no matching video mode |
| * was available. |
| * |
| * The available display modes are scanned, and \c closest is filled in with the |
| * closest mode matching the requested mode and returned. The mode format and |
| * refresh_rate default to the desktop mode if they are 0. The modes are |
| * scanned with size being first priority, format being second priority, and |
| * finally checking the refresh_rate. If all the available modes are too |
| * small, then NULL is returned. |
| * |
| * \sa SDL_GetNumDisplayModes() |
| * \sa SDL_GetDisplayMode() |
| */ |
| extern DECLSPEC SDL_DisplayMode * SDLCALL SDL_GetClosestDisplayMode(int displayIndex, const SDL_DisplayMode * mode, SDL_DisplayMode * closest); |
| |
| /** |
| * \brief Get the display index associated with a window. |
| * |
| * \return the display index of the display containing the center of the |
| * window, or -1 on error. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetWindowDisplay(SDL_Window * window); |
| |
| /** |
| * \brief Set the display mode used when a fullscreen window is visible. |
| * |
| * By default the window's dimensions and the desktop format and refresh rate |
| * are used. |
| * |
| * \param mode The mode to use, or NULL for the default mode. |
| * |
| * \return 0 on success, or -1 if setting the display mode failed. |
| * |
| * \sa SDL_GetWindowDisplayMode() |
| * \sa SDL_SetWindowFullscreen() |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowDisplayMode(SDL_Window * window, |
| const SDL_DisplayMode |
| * mode); |
| |
| /** |
| * \brief Fill in information about the display mode used when a fullscreen |
| * window is visible. |
| * |
| * \sa SDL_SetWindowDisplayMode() |
| * \sa SDL_SetWindowFullscreen() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetWindowDisplayMode(SDL_Window * window, |
| SDL_DisplayMode * mode); |
| |
| /** |
| * \brief Get the pixel format associated with the window. |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_GetWindowPixelFormat(SDL_Window * window); |
| |
| /** |
| * \brief Create a window with the specified position, dimensions, and flags. |
| * |
| * \param title The title of the window, in UTF-8 encoding. |
| * \param x The x position of the window, ::SDL_WINDOWPOS_CENTERED, or |
| * ::SDL_WINDOWPOS_UNDEFINED. |
| * \param y The y position of the window, ::SDL_WINDOWPOS_CENTERED, or |
| * ::SDL_WINDOWPOS_UNDEFINED. |
| * \param w The width of the window. |
| * \param h The height of the window. |
| * \param flags The flags for the window, a mask of any of the following: |
| * ::SDL_WINDOW_FULLSCREEN, ::SDL_WINDOW_OPENGL, |
| * ::SDL_WINDOW_SHOWN, ::SDL_WINDOW_BORDERLESS, |
| * ::SDL_WINDOW_RESIZABLE, ::SDL_WINDOW_MAXIMIZED, |
| * ::SDL_WINDOW_MINIMIZED, ::SDL_WINDOW_INPUT_GRABBED. |
| * |
| * \return The id of the window created, or zero if window creation failed. |
| * |
| * \sa SDL_DestroyWindow() |
| */ |
| extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindow(const char *title, |
| int x, int y, int w, |
| int h, Uint32 flags); |
| |
| /** |
| * \brief Create an SDL window from an existing native window. |
| * |
| * \param data A pointer to driver-dependent window creation data |
| * |
| * \return The id of the window created, or zero if window creation failed. |
| * |
| * \sa SDL_DestroyWindow() |
| */ |
| extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindowFrom(const void *data); |
| |
| /** |
| * \brief Get the numeric ID of a window, for logging purposes. |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_GetWindowID(SDL_Window * window); |
| |
| /** |
| * \brief Get a window from a stored ID, or NULL if it doesn't exist. |
| */ |
| extern DECLSPEC SDL_Window * SDLCALL SDL_GetWindowFromID(Uint32 id); |
| |
| /** |
| * \brief Get the window flags. |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_GetWindowFlags(SDL_Window * window); |
| |
| /** |
| * \brief Set the title of a window, in UTF-8 format. |
| * |
| * \sa SDL_GetWindowTitle() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_Window * window, |
| const char *title); |
| |
| /** |
| * \brief Get the title of a window, in UTF-8 format. |
| * |
| * \sa SDL_SetWindowTitle() |
| */ |
| extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_Window * window); |
| |
| /** |
| * \brief Set the icon for a window. |
| * |
| * \param icon The icon for the window. |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Window * window, |
| SDL_Surface * icon); |
| |
| /** |
| * \brief Associate an arbitrary named pointer with a window. |
| * |
| * \param window The window to associate with the pointer. |
| * \param name The name of the pointer. |
| * \param userdata The associated pointer. |
| * |
| * \return The previous value associated with 'name' |
| * |
| * \note The name is case-sensitive. |
| * |
| * \sa SDL_GetWindowData() |
| */ |
| extern DECLSPEC void* SDLCALL SDL_SetWindowData(SDL_Window * window, |
| const char *name, |
| void *userdata); |
| |
| /** |
| * \brief Retrieve the data pointer associated with a window. |
| * |
| * \param window The window to query. |
| * \param name The name of the pointer. |
| * |
| * \return The value associated with 'name' |
| * |
| * \sa SDL_SetWindowData() |
| */ |
| extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_Window * window, |
| const char *name); |
| |
| /** |
| * \brief Set the position of a window. |
| * |
| * \param window The window to reposition. |
| * \param x The x coordinate of the window, ::SDL_WINDOWPOS_CENTERED, or |
| ::SDL_WINDOWPOS_UNDEFINED. |
| * \param y The y coordinate of the window, ::SDL_WINDOWPOS_CENTERED, or |
| ::SDL_WINDOWPOS_UNDEFINED. |
| * |
| * \note The window coordinate origin is the upper left of the display. |
| * |
| * \sa SDL_GetWindowPosition() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_Window * window, |
| int x, int y); |
| |
| /** |
| * \brief Get the position of a window. |
| * |
| * \sa SDL_SetWindowPosition() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_Window * window, |
| int *x, int *y); |
| |
| /** |
| * \brief Set the size of a window's client area. |
| * |
| * \note You can't change the size of a fullscreen window, it automatically |
| * matches the size of the display mode. |
| * |
| * \sa SDL_GetWindowSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_Window * window, int w, |
| int h); |
| |
| /** |
| * \brief Get the size of a window's client area. |
| * |
| * \sa SDL_SetWindowSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_Window * window, int *w, |
| int *h); |
| |
| /** |
| * \brief Show a window. |
| * |
| * \sa SDL_HideWindow() |
| */ |
| extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_Window * window); |
| |
| /** |
| * \brief Hide a window. |
| * |
| * \sa SDL_ShowWindow() |
| */ |
| extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_Window * window); |
| |
| /** |
| * \brief Raise a window above other windows and set the input focus. |
| */ |
| extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_Window * window); |
| |
| /** |
| * \brief Make a window as large as possible. |
| * |
| * \sa SDL_RestoreWindow() |
| */ |
| extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_Window * window); |
| |
| /** |
| * \brief Minimize a window to an iconic representation. |
| * |
| * \sa SDL_RestoreWindow() |
| */ |
| extern DECLSPEC void SDLCALL SDL_MinimizeWindow(SDL_Window * window); |
| |
| /** |
| * \brief Restore the size and position of a minimized or maximized window. |
| * |
| * \sa SDL_MaximizeWindow() |
| * \sa SDL_MinimizeWindow() |
| */ |
| extern DECLSPEC void SDLCALL SDL_RestoreWindow(SDL_Window * window); |
| |
| /** |
| * \brief Set a window's fullscreen state. |
| * |
| * \return 0 on success, or -1 if setting the display mode failed. |
| * |
| * \sa SDL_SetWindowDisplayMode() |
| * \sa SDL_GetWindowDisplayMode() |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowFullscreen(SDL_Window * window, |
| SDL_bool fullscreen); |
| |
| /** |
| * \brief Get an SDL surface associated with the window. |
| * |
| * \return A surface in the optimal format for the window, or NULL on error. |
| * |
| * \note You may not combine this with 3D or the rendering API on this window. |
| * |
| * \sa SDL_UpdateWindowSurface() |
| * \sa SDL_UpdateWindowSurfaceRects() |
| */ |
| extern DECLSPEC SDL_Surface * SDLCALL SDL_GetWindowSurface(SDL_Window * window); |
| |
| /** |
| * \brief Copy the window surface to the screen. |
| * |
| * \return 0 on success, or -1 on error. |
| * |
| * \sa SDL_GetWindowSurface() |
| * \sa SDL_UpdateWindowSurfaceRects() |
| */ |
| extern DECLSPEC int SDLCALL SDL_UpdateWindowSurface(SDL_Window * window); |
| |
| /** |
| * \brief Copy a number of rectangles on the window surface to the screen. |
| * |
| * \return 0 on success, or -1 on error. |
| * |
| * \sa SDL_GetWindowSurface() |
| * \sa SDL_UpdateWindowSurfaceRect() |
| */ |
| extern DECLSPEC int SDLCALL SDL_UpdateWindowSurfaceRects(SDL_Window * window, |
| SDL_Rect * rects, |
| int numrects); |
| |
| /** |
| * \brief Set a window's input grab mode. |
| * |
| * \param grabbed This is SDL_TRUE to grab input, and SDL_FALSE to release input. |
| * |
| * \sa SDL_GetWindowGrab() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowGrab(SDL_Window * window, |
| SDL_bool grabbed); |
| |
| /** |
| * \brief Get a window's input grab mode. |
| * |
| * \return This returns SDL_TRUE if input is grabbed, and SDL_FALSE otherwise. |
| * |
| * \sa SDL_SetWindowGrab() |
| */ |
| extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowGrab(SDL_Window * window); |
| |
| /** |
| * \brief Set the brightness (gamma correction) for a window. |
| * |
| * \return 0 on success, or -1 if setting the brightness isn't supported. |
| * |
| * \sa SDL_GetWindowBrightness() |
| * \sa SDL_SetWindowGammaRamp() |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowBrightness(SDL_Window * window, float brightness); |
| |
| /** |
| * \brief Get the brightness (gamma correction) for a window. |
| * |
| * \return The last brightness value passed to SDL_SetWindowBrightness() |
| * |
| * \sa SDL_SetWindowBrightness() |
| */ |
| extern DECLSPEC float SDLCALL SDL_GetWindowBrightness(SDL_Window * window); |
| |
| /** |
| * \brief Set the gamma ramp for a window. |
| * |
| * \param red The translation table for the red channel, or NULL. |
| * \param green The translation table for the green channel, or NULL. |
| * \param blue The translation table for the blue channel, or NULL. |
| * |
| * \return 0 on success, or -1 if gamma ramps are unsupported. |
| * |
| * Set the gamma translation table for the red, green, and blue channels |
| * of the video hardware. Each table is an array of 256 16-bit quantities, |
| * representing a mapping between the input and output for that channel. |
| * The input is the index into the array, and the output is the 16-bit |
| * gamma value at that index, scaled to the output color precision. |
| * |
| * \sa SDL_GetWindowGammaRamp() |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowGammaRamp(SDL_Window * window, |
| const Uint16 * red, |
| const Uint16 * green, |
| const Uint16 * blue); |
| |
| /** |
| * \brief Get the gamma ramp for a window. |
| * |
| * \param red A pointer to a 256 element array of 16-bit quantities to hold |
| * the translation table for the red channel, or NULL. |
| * \param green A pointer to a 256 element array of 16-bit quantities to hold |
| * the translation table for the green channel, or NULL. |
| * \param blue A pointer to a 256 element array of 16-bit quantities to hold |
| * the translation table for the blue channel, or NULL. |
| * |
| * \return 0 on success, or -1 if gamma ramps are unsupported. |
| * |
| * \sa SDL_SetWindowGammaRamp() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetWindowGammaRamp(SDL_Window * window, |
| Uint16 * red, |
| Uint16 * green, |
| Uint16 * blue); |
| |
| /** |
| * \brief Destroy a window. |
| */ |
| extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_Window * window); |
| |
| |
| /** |
| * \brief Returns whether the screensaver is currently enabled (default on). |
| * |
| * \sa SDL_EnableScreenSaver() |
| * \sa SDL_DisableScreenSaver() |
| */ |
| extern DECLSPEC SDL_bool SDLCALL SDL_IsScreenSaverEnabled(void); |
| |
| /** |
| * \brief Allow the screen to be blanked by a screensaver |
| * |
| * \sa SDL_IsScreenSaverEnabled() |
| * \sa SDL_DisableScreenSaver() |
| */ |
| extern DECLSPEC void SDLCALL SDL_EnableScreenSaver(void); |
| |
| /** |
| * \brief Prevent the screen from being blanked by a screensaver |
| * |
| * \sa SDL_IsScreenSaverEnabled() |
| * \sa SDL_EnableScreenSaver() |
| */ |
| extern DECLSPEC void SDLCALL SDL_DisableScreenSaver(void); |
| |
| |
| /** |
| * \name OpenGL support functions |
| */ |
| /*@{*/ |
| |
| /** |
| * \brief Dynamically load an OpenGL library. |
| * |
| * \param path The platform dependent OpenGL library name, or NULL to open the |
| * default OpenGL library. |
| * |
| * \return 0 on success, or -1 if the library couldn't be loaded. |
| * |
| * This should be done after initializing the video driver, but before |
| * creating any OpenGL windows. If no OpenGL library is loaded, the default |
| * library will be loaded upon creation of the first OpenGL window. |
| * |
| * \note If you do this, you need to retrieve all of the GL functions used in |
| * your program from the dynamic library using SDL_GL_GetProcAddress(). |
| * |
| * \sa SDL_GL_GetProcAddress() |
| * \sa SDL_GL_UnloadLibrary() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path); |
| |
| /** |
| * \brief Get the address of an OpenGL function. |
| */ |
| extern DECLSPEC void *SDLCALL SDL_GL_GetProcAddress(const char *proc); |
| |
| /** |
| * \brief Unload the OpenGL library previously loaded by SDL_GL_LoadLibrary(). |
| * |
| * \sa SDL_GL_LoadLibrary() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GL_UnloadLibrary(void); |
| |
| /** |
| * \brief Return true if an OpenGL extension is supported for the current |
| * context. |
| */ |
| extern DECLSPEC SDL_bool SDLCALL SDL_GL_ExtensionSupported(const char |
| *extension); |
| |
| /** |
| * \brief Set an OpenGL window attribute before window creation. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value); |
| |
| /** |
| * \brief Get the actual value for an attribute from the current context. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int *value); |
| |
| /** |
| * \brief Create an OpenGL context for use with an OpenGL window, and make it |
| * current. |
| * |
| * \sa SDL_GL_DeleteContext() |
| */ |
| extern DECLSPEC SDL_GLContext SDLCALL SDL_GL_CreateContext(SDL_Window * |
| window); |
| |
| /** |
| * \brief Set up an OpenGL context for rendering into an OpenGL window. |
| * |
| * \note The context must have been created with a compatible window. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_MakeCurrent(SDL_Window * window, |
| SDL_GLContext context); |
| |
| /** |
| * \brief Set the swap interval for the current OpenGL context. |
| * |
| * \param interval 0 for immediate updates, 1 for updates synchronized with the |
| * vertical retrace. |
| * |
| * \return 0 on success, or -1 if setting the swap interval is not supported. |
| * |
| * \sa SDL_GL_GetSwapInterval() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_SetSwapInterval(int interval); |
| |
| /** |
| * \brief Get the swap interval for the current OpenGL context. |
| * |
| * \return 0 if there is no vertical retrace synchronization, 1 if the buffer |
| * swap is synchronized with the vertical retrace, and -1 if getting |
| * the swap interval is not supported. |
| * |
| * \sa SDL_GL_SetSwapInterval() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_GetSwapInterval(void); |
| |
| /** |
| * \brief Swap the OpenGL buffers for a window, if double-buffering is |
| * supported. |
| */ |
| extern DECLSPEC void SDLCALL SDL_GL_SwapWindow(SDL_Window * window); |
| |
| /** |
| * \brief Delete an OpenGL context. |
| * |
| * \sa SDL_GL_CreateContext() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GL_DeleteContext(SDL_GLContext context); |
| |
| /*@}*//*OpenGL support functions*/ |
| |
| |
| /* Ends C function definitions when using C++ */ |
| #ifdef __cplusplus |
| /* *INDENT-OFF* */ |
| } |
| /* *INDENT-ON* */ |
| #endif |
| #include "close_code.h" |
| |
| #endif /* _SDL_video_h */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
