| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| |
| /** |
| * \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 |
| extern "C" { |
| #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, in screen coordinates */ |
| int h; /**< height, in screen coordinates */ |
| 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_SetWindowBordered() |
| * \sa SDL_SetWindowResizable() |
| * \sa SDL_SetWindowTitle() |
| * \sa SDL_ShowWindow() |
| */ |
| typedef struct SDL_Window SDL_Window; |
| |
| /** |
| * \brief The flags on a window |
| * |
| * \sa SDL_GetWindowFlags() |
| */ |
| typedef enum |
| { |
| /* !!! FIXME: change this to name = (1<<x). */ |
| 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_FULLSCREEN_DESKTOP = ( SDL_WINDOW_FULLSCREEN | 0x00001000 ), |
| SDL_WINDOW_FOREIGN = 0x00000800, /**< window not created by SDL */ |
| SDL_WINDOW_ALLOW_HIGHDPI = 0x00002000, /**< window should be created in high-DPI mode if supported. |
| On macOS NSHighResolutionCapable must be set true in the |
| application's Info.plist for this to have any effect. */ |
| SDL_WINDOW_MOUSE_CAPTURE = 0x00004000, /**< window has mouse captured (unrelated to INPUT_GRABBED) */ |
| SDL_WINDOW_ALWAYS_ON_TOP = 0x00008000, /**< window should always be above others */ |
| SDL_WINDOW_SKIP_TASKBAR = 0x00010000, /**< window should not be added to the taskbar */ |
| SDL_WINDOW_UTILITY = 0x00020000, /**< window should be treated as a utility window */ |
| SDL_WINDOW_TOOLTIP = 0x00040000, /**< window should be treated as a tooltip */ |
| SDL_WINDOW_POPUP_MENU = 0x00080000, /**< window should be treated as a popup menu */ |
| SDL_WINDOW_VULKAN = 0x10000000 /**< window usable for Vulkan surface */ |
| } SDL_WindowFlags; |
| |
| /** |
| * \brief Used to indicate that you don't care what the window position is. |
| */ |
| #define SDL_WINDOWPOS_UNDEFINED_MASK 0x1FFF0000u |
| #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 0x2FFF0000u |
| #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_WINDOWEVENT_TAKE_FOCUS, /**< Window is being offered a focus (should SetWindowInputFocus() on itself or a subwindow, or ignore) */ |
| SDL_WINDOWEVENT_HIT_TEST /**< Window had a hit test that wasn't SDL_HITTEST_NORMAL. */ |
| } SDL_WindowEventID; |
| |
| /** |
| * \brief Event subtype for display events |
| */ |
| typedef enum |
| { |
| SDL_DISPLAYEVENT_NONE, /**< Never used */ |
| SDL_DISPLAYEVENT_ORIENTATION /**< Display orientation has changed to data1 */ |
| } SDL_DisplayEventID; |
| |
| typedef enum |
| { |
| SDL_ORIENTATION_UNKNOWN, /**< The display orientation can't be determined */ |
| SDL_ORIENTATION_LANDSCAPE, /**< The display is in landscape mode, with the right side up, relative to portrait mode */ |
| SDL_ORIENTATION_LANDSCAPE_FLIPPED, /**< The display is in landscape mode, with the left side up, relative to portrait mode */ |
| SDL_ORIENTATION_PORTRAIT, /**< The display is in portrait mode */ |
| SDL_ORIENTATION_PORTRAIT_FLIPPED /**< The display is in portrait mode, upside down */ |
| } SDL_DisplayOrientation; |
| |
| /** |
| * \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_GL_CONTEXT_EGL, |
| SDL_GL_CONTEXT_FLAGS, |
| SDL_GL_CONTEXT_PROFILE_MASK, |
| SDL_GL_SHARE_WITH_CURRENT_CONTEXT, |
| SDL_GL_FRAMEBUFFER_SRGB_CAPABLE, |
| SDL_GL_CONTEXT_RELEASE_BEHAVIOR, |
| SDL_GL_CONTEXT_RESET_NOTIFICATION, |
| SDL_GL_CONTEXT_NO_ERROR |
| } SDL_GLattr; |
| |
| typedef enum |
| { |
| SDL_GL_CONTEXT_PROFILE_CORE = 0x0001, |
| SDL_GL_CONTEXT_PROFILE_COMPATIBILITY = 0x0002, |
| SDL_GL_CONTEXT_PROFILE_ES = 0x0004 /**< GLX_CONTEXT_ES2_PROFILE_BIT_EXT */ |
| } SDL_GLprofile; |
| |
| typedef enum |
| { |
| SDL_GL_CONTEXT_DEBUG_FLAG = 0x0001, |
| SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG = 0x0002, |
| SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG = 0x0004, |
| SDL_GL_CONTEXT_RESET_ISOLATION_FLAG = 0x0008 |
| } SDL_GLcontextFlag; |
| |
| typedef enum |
| { |
| SDL_GL_CONTEXT_RELEASE_BEHAVIOR_NONE = 0x0000, |
| SDL_GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH = 0x0001 |
| } SDL_GLcontextReleaseFlag; |
| |
| typedef enum |
| { |
| SDL_GL_CONTEXT_RESET_NO_NOTIFICATION = 0x0000, |
| SDL_GL_CONTEXT_RESET_LOSE_CONTEXT = 0x0001 |
| } SDL_GLContextResetNotification; |
| |
| /* 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 name of a display in UTF-8 encoding |
| * |
| * \return The name of a display, or NULL for an invalid display index. |
| * |
| * \sa SDL_GetNumVideoDisplays() |
| */ |
| extern DECLSPEC const char * SDLCALL SDL_GetDisplayName(int displayIndex); |
| |
| /** |
| * \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 Get the usable desktop area represented by a display, with the |
| * primary display located at 0,0 |
| * |
| * This is the same area as SDL_GetDisplayBounds() reports, but with portions |
| * reserved by the system removed. For example, on Mac OS X, this subtracts |
| * the area occupied by the menu bar and dock. |
| * |
| * Setting a window to be fullscreen generally bypasses these unusable areas, |
| * so these are good guidelines for the maximum space available to a |
| * non-fullscreen window. |
| * |
| * \return 0 on success, or -1 if the index is out of range. |
| * |
| * \sa SDL_GetDisplayBounds() |
| * \sa SDL_GetNumVideoDisplays() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetDisplayUsableBounds(int displayIndex, SDL_Rect * rect); |
| |
| /** |
| * \brief Get the dots/pixels-per-inch for a display |
| * |
| * \note Diagonal, horizontal and vertical DPI can all be optionally |
| * returned if the parameter is non-NULL. |
| * |
| * \return 0 on success, or -1 if no DPI information is available or the index is out of range. |
| * |
| * \sa SDL_GetNumVideoDisplays() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetDisplayDPI(int displayIndex, float * ddpi, float * hdpi, float * vdpi); |
| |
| /** |
| * \brief Get the orientation of a display |
| * |
| * \return The orientation of the display, or SDL_ORIENTATION_UNKNOWN if it isn't available. |
| * |
| * \sa SDL_GetNumVideoDisplays() |
| */ |
| extern DECLSPEC SDL_DisplayOrientation SDLCALL SDL_GetDisplayOrientation(int displayIndex); |
| |
| /** |
| * \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 displayIndex The index of display from which mode should be queried. |
| * \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_GetWindowDisplayIndex(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 window The window for which the display mode should be set. |
| * \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, in screen coordinates. |
| * \param h The height of the window, in screen coordinates. |
| * \param flags The flags for the window, a mask of any of the following: |
| * ::SDL_WINDOW_FULLSCREEN, ::SDL_WINDOW_OPENGL, |
| * ::SDL_WINDOW_HIDDEN, ::SDL_WINDOW_BORDERLESS, |
| * ::SDL_WINDOW_RESIZABLE, ::SDL_WINDOW_MAXIMIZED, |
| * ::SDL_WINDOW_MINIMIZED, ::SDL_WINDOW_INPUT_GRABBED, |
| * ::SDL_WINDOW_ALLOW_HIGHDPI, ::SDL_WINDOW_VULKAN. |
| * |
| * \return The created window, or NULL if window creation failed. |
| * |
| * If the window is created with the SDL_WINDOW_ALLOW_HIGHDPI flag, its size |
| * in pixels may differ from its size in screen coordinates on platforms with |
| * high-DPI support (e.g. iOS and Mac OS X). Use SDL_GetWindowSize() to query |
| * the client area's size in screen coordinates, and SDL_GL_GetDrawableSize(), |
| * SDL_Vulkan_GetDrawableSize(), or SDL_GetRendererOutputSize() to query the |
| * drawable size in pixels. |
| * |
| * If the window is created with any of the SDL_WINDOW_OPENGL or |
| * SDL_WINDOW_VULKAN flags, then the corresponding LoadLibrary function |
| * (SDL_GL_LoadLibrary or SDL_Vulkan_LoadLibrary) is called and the |
| * corresponding UnloadLibrary function is called by SDL_DestroyWindow(). |
| * |
| * If SDL_WINDOW_VULKAN is specified and there isn't a working Vulkan driver, |
| * SDL_CreateWindow() will fail because SDL_Vulkan_LoadLibrary() will fail. |
| * |
| * \note On non-Apple devices, SDL requires you to either not link to the |
| * Vulkan loader or link to a dynamic library version. This limitation |
| * may be removed in a future version of SDL. |
| * |
| * \sa SDL_DestroyWindow() |
| * \sa SDL_GL_LoadLibrary() |
| * \sa SDL_Vulkan_LoadLibrary() |
| */ |
| 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 created window, or NULL 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 window The window for which the icon should be set. |
| * \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 in screen coordinates, or |
| * ::SDL_WINDOWPOS_CENTERED or ::SDL_WINDOWPOS_UNDEFINED. |
| * \param y The y coordinate of the window in screen coordinates, or |
| * ::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. |
| * |
| * \param window The window to query. |
| * \param x Pointer to variable for storing the x position, in screen |
| * coordinates. May be NULL. |
| * \param y Pointer to variable for storing the y position, in screen |
| * coordinates. May be NULL. |
| * |
| * \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. |
| * |
| * \param window The window to resize. |
| * \param w The width of the window, in screen coordinates. Must be >0. |
| * \param h The height of the window, in screen coordinates. Must be >0. |
| * |
| * \note Fullscreen windows automatically match the size of the display mode, |
| * and you should use SDL_SetWindowDisplayMode() to change their size. |
| * |
| * The window size in screen coordinates may differ from the size in pixels, if |
| * the window was created with SDL_WINDOW_ALLOW_HIGHDPI on a platform with |
| * high-dpi support (e.g. iOS or OS X). Use SDL_GL_GetDrawableSize() or |
| * SDL_GetRendererOutputSize() to get the real client area size in pixels. |
| * |
| * \sa SDL_GetWindowSize() |
| * \sa SDL_SetWindowDisplayMode() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_Window * window, int w, |
| int h); |
| |
| /** |
| * \brief Get the size of a window's client area. |
| * |
| * \param window The window to query. |
| * \param w Pointer to variable for storing the width, in screen |
| * coordinates. May be NULL. |
| * \param h Pointer to variable for storing the height, in screen |
| * coordinates. May be NULL. |
| * |
| * The window size in screen coordinates may differ from the size in pixels, if |
| * the window was created with SDL_WINDOW_ALLOW_HIGHDPI on a platform with |
| * high-dpi support (e.g. iOS or OS X). Use SDL_GL_GetDrawableSize() or |
| * SDL_GetRendererOutputSize() to get the real client area size in pixels. |
| * |
| * \sa SDL_SetWindowSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_Window * window, int *w, |
| int *h); |
| |
| /** |
| * \brief Get the size of a window's borders (decorations) around the client area. |
| * |
| * \param window The window to query. |
| * \param top Pointer to variable for storing the size of the top border. NULL is permitted. |
| * \param left Pointer to variable for storing the size of the left border. NULL is permitted. |
| * \param bottom Pointer to variable for storing the size of the bottom border. NULL is permitted. |
| * \param right Pointer to variable for storing the size of the right border. NULL is permitted. |
| * |
| * \return 0 on success, or -1 if getting this information is not supported. |
| * |
| * \note if this function fails (returns -1), the size values will be |
| * initialized to 0, 0, 0, 0 (if a non-NULL pointer is provided), as |
| * if the window in question was borderless. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetWindowBordersSize(SDL_Window * window, |
| int *top, int *left, |
| int *bottom, int *right); |
| |
| /** |
| * \brief Set the minimum size of a window's client area. |
| * |
| * \param window The window to set a new minimum size. |
| * \param min_w The minimum width of the window, must be >0 |
| * \param min_h The minimum height of the window, must be >0 |
| * |
| * \note You can't change the minimum size of a fullscreen window, it |
| * automatically matches the size of the display mode. |
| * |
| * \sa SDL_GetWindowMinimumSize() |
| * \sa SDL_SetWindowMaximumSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowMinimumSize(SDL_Window * window, |
| int min_w, int min_h); |
| |
| /** |
| * \brief Get the minimum size of a window's client area. |
| * |
| * \param window The window to query. |
| * \param w Pointer to variable for storing the minimum width, may be NULL |
| * \param h Pointer to variable for storing the minimum height, may be NULL |
| * |
| * \sa SDL_GetWindowMaximumSize() |
| * \sa SDL_SetWindowMinimumSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetWindowMinimumSize(SDL_Window * window, |
| int *w, int *h); |
| |
| /** |
| * \brief Set the maximum size of a window's client area. |
| * |
| * \param window The window to set a new maximum size. |
| * \param max_w The maximum width of the window, must be >0 |
| * \param max_h The maximum height of the window, must be >0 |
| * |
| * \note You can't change the maximum size of a fullscreen window, it |
| * automatically matches the size of the display mode. |
| * |
| * \sa SDL_GetWindowMaximumSize() |
| * \sa SDL_SetWindowMinimumSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowMaximumSize(SDL_Window * window, |
| int max_w, int max_h); |
| |
| /** |
| * \brief Get the maximum size of a window's client area. |
| * |
| * \param window The window to query. |
| * \param w Pointer to variable for storing the maximum width, may be NULL |
| * \param h Pointer to variable for storing the maximum height, may be NULL |
| * |
| * \sa SDL_GetWindowMinimumSize() |
| * \sa SDL_SetWindowMaximumSize() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetWindowMaximumSize(SDL_Window * window, |
| int *w, int *h); |
| |
| /** |
| * \brief Set the border state of a window. |
| * |
| * This will add or remove the window's SDL_WINDOW_BORDERLESS flag and |
| * add or remove the border from the actual window. This is a no-op if the |
| * window's border already matches the requested state. |
| * |
| * \param window The window of which to change the border state. |
| * \param bordered SDL_FALSE to remove border, SDL_TRUE to add border. |
| * |
| * \note You can't change the border state of a fullscreen window. |
| * |
| * \sa SDL_GetWindowFlags() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowBordered(SDL_Window * window, |
| SDL_bool bordered); |
| |
| /** |
| * \brief Set the user-resizable state of a window. |
| * |
| * This will add or remove the window's SDL_WINDOW_RESIZABLE flag and |
| * allow/disallow user resizing of the window. This is a no-op if the |
| * window's resizable state already matches the requested state. |
| * |
| * \param window The window of which to change the resizable state. |
| * \param resizable SDL_TRUE to allow resizing, SDL_FALSE to disallow. |
| * |
| * \note You can't change the resizable state of a fullscreen window. |
| * |
| * \sa SDL_GetWindowFlags() |
| */ |
| extern DECLSPEC void SDLCALL SDL_SetWindowResizable(SDL_Window * window, |
| SDL_bool resizable); |
| |
| /** |
| * \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, |
| Uint32 flags); |
| |
| /** |
| * \brief Get the SDL surface associated with the window. |
| * |
| * \return The window's framebuffer surface, or NULL on error. |
| * |
| * A new surface will be created with the optimal format for the window, |
| * if necessary. This surface will be freed when the window is destroyed. |
| * |
| * \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_UpdateWindowSurface() |
| */ |
| extern DECLSPEC int SDLCALL SDL_UpdateWindowSurfaceRects(SDL_Window * window, |
| const SDL_Rect * rects, |
| int numrects); |
| |
| /** |
| * \brief Set a window's input grab mode. |
| * |
| * \param window The window for which the input grab mode should be set. |
| * \param grabbed This is SDL_TRUE to grab input, and SDL_FALSE to release input. |
| * |
| * If the caller enables a grab while another window is currently grabbed, |
| * the other window loses its grab in favor of the caller's window. |
| * |
| * \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 Get the window that currently has an input grab enabled. |
| * |
| * \return This returns the window if input is grabbed, and NULL otherwise. |
| * |
| * \sa SDL_SetWindowGrab() |
| */ |
| extern DECLSPEC SDL_Window * SDLCALL SDL_GetGrabbedWindow(void); |
| |
| /** |
| * \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 opacity for a window |
| * |
| * \param window The window which will be made transparent or opaque |
| * \param opacity Opacity (0.0f - transparent, 1.0f - opaque) This will be |
| * clamped internally between 0.0f and 1.0f. |
| * |
| * \return 0 on success, or -1 if setting the opacity isn't supported. |
| * |
| * \sa SDL_GetWindowOpacity() |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowOpacity(SDL_Window * window, float opacity); |
| |
| /** |
| * \brief Get the opacity of a window. |
| * |
| * If transparency isn't supported on this platform, opacity will be reported |
| * as 1.0f without error. |
| * |
| * \param window The window in question. |
| * \param out_opacity Opacity (0.0f - transparent, 1.0f - opaque) |
| * |
| * \return 0 on success, or -1 on error (invalid window, etc). |
| * |
| * \sa SDL_SetWindowOpacity() |
| */ |
| extern DECLSPEC int SDLCALL SDL_GetWindowOpacity(SDL_Window * window, float * out_opacity); |
| |
| /** |
| * \brief Sets the window as a modal for another window (TODO: reconsider this function and/or its name) |
| * |
| * \param modal_window The window that should be modal |
| * \param parent_window The parent window |
| * |
| * \return 0 on success, or -1 otherwise. |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowModalFor(SDL_Window * modal_window, SDL_Window * parent_window); |
| |
| /** |
| * \brief Explicitly sets input focus to the window. |
| * |
| * You almost certainly want SDL_RaiseWindow() instead of this function. Use |
| * this with caution, as you might give focus to a window that's completely |
| * obscured by other windows. |
| * |
| * \param window The window that should get the input focus |
| * |
| * \return 0 on success, or -1 otherwise. |
| * \sa SDL_RaiseWindow() |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowInputFocus(SDL_Window * window); |
| |
| /** |
| * \brief Set the gamma ramp for a window. |
| * |
| * \param window The window for which the gamma ramp should be set. |
| * \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 window The window from which the gamma ramp should be queried. |
| * \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 Possible return values from the SDL_HitTest callback. |
| * |
| * \sa SDL_HitTest |
| */ |
| typedef enum |
| { |
| SDL_HITTEST_NORMAL, /**< Region is normal. No special properties. */ |
| SDL_HITTEST_DRAGGABLE, /**< Region can drag entire window. */ |
| SDL_HITTEST_RESIZE_TOPLEFT, |
| SDL_HITTEST_RESIZE_TOP, |
| SDL_HITTEST_RESIZE_TOPRIGHT, |
| SDL_HITTEST_RESIZE_RIGHT, |
| SDL_HITTEST_RESIZE_BOTTOMRIGHT, |
| SDL_HITTEST_RESIZE_BOTTOM, |
| SDL_HITTEST_RESIZE_BOTTOMLEFT, |
| SDL_HITTEST_RESIZE_LEFT |
| } SDL_HitTestResult; |
| |
| /** |
| * \brief Callback used for hit-testing. |
| * |
| * \sa SDL_SetWindowHitTest |
| */ |
| typedef SDL_HitTestResult (SDLCALL *SDL_HitTest)(SDL_Window *win, |
| const SDL_Point *area, |
| void *data); |
| |
| /** |
| * \brief Provide a callback that decides if a window region has special properties. |
| * |
| * Normally windows are dragged and resized by decorations provided by the |
| * system window manager (a title bar, borders, etc), but for some apps, it |
| * makes sense to drag them from somewhere else inside the window itself; for |
| * example, one might have a borderless window that wants to be draggable |
| * from any part, or simulate its own title bar, etc. |
| * |
| * This function lets the app provide a callback that designates pieces of |
| * a given window as special. This callback is run during event processing |
| * if we need to tell the OS to treat a region of the window specially; the |
| * use of this callback is known as "hit testing." |
| * |
| * Mouse input may not be delivered to your application if it is within |
| * a special area; the OS will often apply that input to moving the window or |
| * resizing the window and not deliver it to the application. |
| * |
| * Specifying NULL for a callback disables hit-testing. Hit-testing is |
| * disabled by default. |
| * |
| * Platforms that don't support this functionality will return -1 |
| * unconditionally, even if you're attempting to disable hit-testing. |
| * |
| * Your callback may fire at any time, and its firing does not indicate any |
| * specific behavior (for example, on Windows, this certainly might fire |
| * when the OS is deciding whether to drag your window, but it fires for lots |
| * of other reasons, too, some unrelated to anything you probably care about |
| * _and when the mouse isn't actually at the location it is testing_). |
| * Since this can fire at any time, you should try to keep your callback |
| * efficient, devoid of allocations, etc. |
| * |
| * \param window The window to set hit-testing on. |
| * \param callback The callback to call when doing a hit-test. |
| * \param callback_data An app-defined void pointer passed to the callback. |
| * \return 0 on success, -1 on error (including unsupported). |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetWindowHitTest(SDL_Window * window, |
| SDL_HitTest callback, |
| void *callback_data); |
| |
| /** |
| * \brief Destroy a window. |
| */ |
| extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_Window * window); |
| |
| |
| /** |
| * \brief Returns whether the screensaver is currently enabled (default off). |
| * |
| * \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 Reset all previously set OpenGL context attributes to their default values |
| */ |
| extern DECLSPEC void SDLCALL SDL_GL_ResetAttributes(void); |
| |
| /** |
| * \brief Set an OpenGL window attribute before window creation. |
| * |
| * \return 0 on success, or -1 if the attribute could not be set. |
| */ |
| extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value); |
| |
| /** |
| * \brief Get the actual value for an attribute from the current context. |
| * |
| * \return 0 on success, or -1 if the attribute could not be retrieved. |
| * The integer at \c value will be modified in either case. |
| */ |
| 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 Get the currently active OpenGL window. |
| */ |
| extern DECLSPEC SDL_Window* SDLCALL SDL_GL_GetCurrentWindow(void); |
| |
| /** |
| * \brief Get the currently active OpenGL context. |
| */ |
| extern DECLSPEC SDL_GLContext SDLCALL SDL_GL_GetCurrentContext(void); |
| |
| /** |
| * \brief Get the size of a window's underlying drawable in pixels (for use |
| * with glViewport). |
| * |
| * \param window Window from which the drawable size should be queried |
| * \param w Pointer to variable for storing the width in pixels, may be NULL |
| * \param h Pointer to variable for storing the height in pixels, may be NULL |
| * |
| * This may differ from SDL_GetWindowSize() if we're rendering to a high-DPI |
| * drawable, i.e. the window was created with SDL_WINDOW_ALLOW_HIGHDPI on a |
| * platform with high-DPI support (Apple calls this "Retina"), and not disabled |
| * by the SDL_HINT_VIDEO_HIGHDPI_DISABLED hint. |
| * |
| * \sa SDL_GetWindowSize() |
| * \sa SDL_CreateWindow() |
| */ |
| extern DECLSPEC void SDLCALL SDL_GL_GetDrawableSize(SDL_Window * window, int *w, |
| int *h); |
| |
| /** |
| * \brief Set the swap interval for the current OpenGL context. |
| * |
| * \param interval 0 for immediate updates, 1 for updates synchronized with the |
| * vertical retrace. If the system supports it, you may |
| * specify -1 to allow late swaps to happen immediately |
| * instead of waiting for the next 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 late |
| * swaps happen immediately instead of waiting for the next retrace. |
| * If the system can't determine the swap interval, or there isn't a |
| * valid current context, this will return 0 as a safe default. |
| * |
| * \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 |
| } |
| #endif |
| #include "close_code.h" |
| |
| #endif /* SDL_video_h_ */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
