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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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()
*/
struct SDL_Window;
typedef struct SDL_Window SDL_Window;
/**
* \brief The flags on a window
*
* \sa SDL_GetWindowFlags()
*/
typedef enum
{
SDL_WINDOW_FULLSCREEN = 0x00000001, /**< fullscreen window, implies borderless */
SDL_WINDOW_OPENGL = 0x00000002, /**< window usable with OpenGL context */
SDL_WINDOW_SHOWN = 0x00000004, /**< window is visible */
SDL_WINDOW_BORDERLESS = 0x00000008, /**< no window decoration */
SDL_WINDOW_RESIZABLE = 0x00000010, /**< window can be resized */
SDL_WINDOW_MINIMIZED = 0x00000020, /**< window is minimized */
SDL_WINDOW_MAXIMIZED = 0x00000040, /**< 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 0x7FFFFFF
/**
* \brief Used to indicate that the window position should be centered.
*/
#define SDL_WINDOWPOS_CENTERED 0x7FFFFFE
/**
* \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 size changed to data1xdata2 */
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 Flags used when creating a rendering context
*/
typedef enum
{
SDL_RENDERER_SINGLEBUFFER = 0x00000001, /**< Render directly to the
window, if possible */
SDL_RENDERER_PRESENTCOPY = 0x00000002, /**< Present uses a copy from
back buffer to the front
buffer */
SDL_RENDERER_PRESENTFLIP2 = 0x00000004, /**< Present uses a flip,
swapping back buffer and
front buffer */
SDL_RENDERER_PRESENTFLIP3 = 0x00000008, /**< Present uses a flip,
rotating between two back
buffers and a front buffer
*/
SDL_RENDERER_PRESENTDISCARD = 0x00000010, /**< Present leaves the contents
of the backbuffer undefined
*/
SDL_RENDERER_PRESENTVSYNC = 0x00000020, /**< Present is synchronized
with the refresh rate */
SDL_RENDERER_ACCELERATED = 0x00000040 /**< The renderer uses hardware
acceleration */
} SDL_RendererFlags;
/**
* \brief Information on the capabilities of a render driver or context.
*/
typedef struct SDL_RendererInfo
{
const char *name; /**< The name of the renderer */
Uint32 flags; /**< Supported ::SDL_RendererFlags */
Uint32 mod_modes; /**< A mask of supported channel modulation */
Uint32 blend_modes; /**< A mask of supported blend modes */
Uint32 scale_modes; /**< A mask of supported scale modes */
Uint32 num_texture_formats; /**< The number of available texture formats */
Uint32 texture_formats[20]; /**< The available texture formats */
int max_texture_width; /**< The maximimum texture width */
int max_texture_height; /**< The maximimum texture height */
} SDL_RendererInfo;
/**
* \brief The access pattern allowed for a texture.
*/
typedef enum
{
SDL_TEXTUREACCESS_STATIC, /**< Changes rarely, not lockable */
SDL_TEXTUREACCESS_STREAMING /**< Changes frequently, lockable */
} SDL_TextureAccess;
/**
* \brief The texture channel modulation used in SDL_RenderCopy().
*/
typedef enum
{
SDL_TEXTUREMODULATE_NONE = 0x00000000, /**< No modulation */
SDL_TEXTUREMODULATE_COLOR = 0x00000001, /**< srcC = srcC * color */
SDL_TEXTUREMODULATE_ALPHA = 0x00000002 /**< srcA = srcA * alpha */
} SDL_TextureModulate;
/**
* \brief The blend mode used in SDL_RenderCopy() and drawing operations.
*/
typedef enum
{
SDL_BLENDMODE_NONE = 0x00000000, /**< No blending */
SDL_BLENDMODE_MASK = 0x00000001, /**< dst = A ? src : dst
(alpha is mask) */
SDL_BLENDMODE_BLEND = 0x00000002, /**< dst = (src * A) + (dst * (1-A)) */
SDL_BLENDMODE_ADD = 0x00000004, /**< dst = (src * A) + dst */
SDL_BLENDMODE_MOD = 0x00000008 /**< dst = src * dst */
} SDL_BlendMode;
/**
* \brief The texture scale mode used in SDL_RenderCopy().
*/
typedef enum
{
SDL_TEXTURESCALEMODE_NONE = 0x00000000, /**< No scaling, rectangles must
match dimensions */
SDL_TEXTURESCALEMODE_FAST = 0x00000001, /**< Point sampling or
equivalent algorithm */
SDL_TEXTURESCALEMODE_SLOW = 0x00000002, /**< Linear filtering or
equivalent algorithm */
SDL_TEXTURESCALEMODE_BEST = 0x00000004 /**< Bicubic filtering or
equivalent algorithm */
} SDL_TextureScaleMode;
/**
* \brief An efficient driver-specific representation of pixel data
*/
struct SDL_Texture;
typedef struct SDL_Texture SDL_Texture;
/**
* \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.
*
* \param flags FIXME: Still needed?
*
* \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,
Uint32 flags);
/**
* \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()
* \sa SDL_SelectVideoDisplay()
*/
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 index, SDL_Rect * rect);
/**
* \brief Set the index of the currently selected display.
*
* \return 0 on success, or -1 if the index is out of range.
*
* \sa SDL_GetNumVideoDisplays()
* \sa SDL_GetCurrentVideoDisplay()
*/
extern DECLSPEC int SDLCALL SDL_SelectVideoDisplay(int index);
/**
* \brief Get the index of the currently selected display.
*
* \return The index of the currently selected display.
*
* \sa SDL_GetNumVideoDisplays()
* \sa SDL_SelectVideoDisplay()
*/
extern DECLSPEC int SDLCALL SDL_GetCurrentVideoDisplay(void);
/**
* \brief Returns the number of available display modes for the current display.
*
* \sa SDL_GetDisplayMode()
*/
extern DECLSPEC int SDLCALL SDL_GetNumDisplayModes(void);
/**
* \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 index,
SDL_DisplayMode * mode);
/**
* \brief Fill in information about the desktop display mode for the current
* display.
*/
extern DECLSPEC int SDLCALL SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode);
/**
* \brief Fill in information about the current display mode.
*/
extern DECLSPEC int SDLCALL SDL_GetCurrentDisplayMode(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(const
SDL_DisplayMode
* mode,
SDL_DisplayMode
* closest);
/**
* \brief Set the display mode used when a fullscreen window is visible
* on the currently selected display. 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 on the currently selected display.
*
* \sa SDL_SetWindowDisplayMode()
* \sa SDL_SetWindowFullscreen()
*/
extern DECLSPEC int SDLCALL SDL_GetWindowDisplayMode(SDL_Window * window,
SDL_DisplayMode * mode);
/**
* \brief Set the palette entries for indexed display modes.
*
* \return 0 on success, or -1 if the display mode isn't palettized or the
* colors couldn't be set.
*/
extern DECLSPEC int SDLCALL SDL_SetDisplayPalette(const SDL_Color * colors,
int firstcolor,
int ncolors);
/**
* \brief Gets the palette entries for indexed display modes.
*
* \return 0 on success, or -1 if the display mode isn't palettized
*/
extern DECLSPEC int SDLCALL SDL_GetDisplayPalette(SDL_Color * colors,
int firstcolor,
int ncolors);
/**
* \brief Set the gamma correction for each of the color channels on the
* currently selected display.
*
* \return 0 on success, or -1 if setting the gamma isn't supported.
*
* \sa SDL_SetGammaRamp()
*/
extern DECLSPEC int SDLCALL SDL_SetGamma(float red, float green, float blue);
/**
* \brief Set the gamma ramp for the currently selected display.
*
* \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_GetGammaRamp()
*/
extern DECLSPEC int SDLCALL SDL_SetGammaRamp(const Uint16 * red,
const Uint16 * green,
const Uint16 * blue);
/**
* \brief Get the gamma ramp for the currently selected display.
*
* \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_SetGammaRamp()
*/
extern DECLSPEC int SDLCALL SDL_GetGammaRamp(Uint16 * red, Uint16 * green,
Uint16 * blue);
/**
* \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 the 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 the 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 the window, in UTF-8 format.
*
* \sa SDL_SetWindowTitle()
*/
extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_Window * window);
/**
* \brief Set the icon of the window.
*
* \param icon The icon for the window.
*/
extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Window * window,
SDL_Surface * icon);
/**
* \brief Associate an arbitrary pointer with the window.
*
* \sa SDL_GetWindowData()
*/
extern DECLSPEC void SDLCALL SDL_SetWindowData(SDL_Window * window,
void *userdata);
/**
* \brief Retrieve the data pointer associated with the window.
*
* \sa SDL_SetWindowData()
*/
extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_Window * window);
/**
* \brief Set the position of the 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 the window.
*
* \sa SDL_SetWindowPosition()
*/
extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_Window * window,
int *x, int *y);
/**
* \brief Set the size of the 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 the window's client area.
*
* \sa SDL_SetWindowSize()
*/
extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_Window * window, int *w,
int *h);
/**
* \brief Show the window.
*
* \sa SDL_HideWindow()
*/
extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_Window * window);
/**
* \brief Hide the window.
*
* \sa SDL_ShowWindow()
*/
extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_Window * window);
/**
* \brief Raise the window above other windows and set the input focus.
*/
extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_Window * window);
/**
* \brief Make the window as large as possible.
*
* \sa SDL_RestoreWindow()
*/
extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_Window * window);
/**
* \brief Minimize the 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 the 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,
int fullscreen);
/**
* \brief Set the window's input grab mode.
*
* \param mode This is 1 to grab input, and 0 to release input.
*
* \sa SDL_GetWindowGrab()
*/
extern DECLSPEC void SDLCALL SDL_SetWindowGrab(SDL_Window * window,
int mode);
/**
* \brief Get the window's input grab mode.
*
* \return This returns 1 if input is grabbed, and 0 otherwise.
*
* \sa SDL_SetWindowGrab()
*/
extern DECLSPEC int SDLCALL SDL_GetWindowGrab(SDL_Window * window);
/**
* \brief Get driver specific information about a window.
*
* \note Include SDL_syswm.h for the declaration of SDL_SysWMinfo.
*/
struct SDL_SysWMinfo;
extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowWMInfo(SDL_Window * window,
struct SDL_SysWMinfo
*info);
/**
* \brief Destroy a window.
*/
extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_Window * window);
/**
* \brief Get the number of 2D rendering drivers available for the current
* display.
*
* A render driver is a set of code that handles rendering and texture
* management on a particular display. Normally there is only one, but
* some drivers may have several available with different capabilities.
*
* \sa SDL_GetRenderDriverInfo()
* \sa SDL_CreateRenderer()
*/
extern DECLSPEC int SDLCALL SDL_GetNumRenderDrivers(void);
/**
* \brief Get information about a specific 2D rendering driver for the current
* display.
*
* \param index The index of the driver to query information about.
* \param info A pointer to an SDL_RendererInfo struct to be filled with
* information on the rendering driver.
*
* \return 0 on success, -1 if the index was out of range.
*
* \sa SDL_CreateRenderer()
*/
extern DECLSPEC int SDLCALL SDL_GetRenderDriverInfo(int index,
SDL_RendererInfo * info);
/**
* \brief Create and make active a 2D rendering context for a window.
*
* \param window The window where rendering is displayed.
* \param index The index of the rendering driver to initialize, or -1 to
* initialize the first one supporting the requested flags.
* \param flags ::SDL_RendererFlags.
*
* \return 0 on success, -1 if there was an error creating the renderer.
*
* \sa SDL_SelectRenderer()
* \sa SDL_GetRendererInfo()
* \sa SDL_DestroyRenderer()
*/
extern DECLSPEC int SDLCALL SDL_CreateRenderer(SDL_Window * window,
int index, Uint32 flags);
/**
* \brief Select the rendering context for a particular window.
*
* \return 0 on success, -1 if the selected window doesn't have a
* rendering context.
*/
extern DECLSPEC int SDLCALL SDL_SelectRenderer(SDL_Window * window);
/**
* \brief Get information about the current rendering context.
*/
extern DECLSPEC int SDLCALL SDL_GetRendererInfo(SDL_RendererInfo * info);
/**
* \brief Create a texture for the current rendering context.
*
* \param format The format of the texture.
* \param access One of the enumerated values in ::SDL_TextureAccess.
* \param w The width of the texture in pixels.
* \param h The height of the texture in pixels.
*
* \return The created texture is returned, or 0 if no rendering context was
* active, the format was unsupported, or the width or height were out
* of range.
*
* \sa SDL_QueryTexture()
* \sa SDL_DestroyTexture()
*/
extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTexture(Uint32 format,
int access, int w,
int h);
/**
* \brief Create a texture from an existing surface.
*
* \param format The format of the texture, or 0 to pick an appropriate format.
* \param surface The surface containing pixel data used to fill the texture.
*
* \return The created texture is returned, or 0 if no rendering context was
* active, the format was unsupported, or the surface width or height
* were out of range.
*
* \note The surface is not modified or freed by this function.
*
* \sa SDL_QueryTexture()
* \sa SDL_DestroyTexture()
*/
extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTextureFromSurface(Uint32
format,
SDL_Surface
* surface);
/**
* \brief Query the attributes of a texture
*
* \param texture A texture to be queried.
* \param format A pointer filled in with the raw format of the texture. The
* actual format may differ, but pixel transfers will use this
* format.
* \param access A pointer filled in with the actual access to the texture.
* \param w A pointer filled in with the width of the texture in pixels.
* \param h A pointer filled in with the height of the texture in pixels.
*
* \return 0 on success, or -1 if the texture is not valid.
*/
extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_Texture * texture,
Uint32 * format, int *access,
int *w, int *h);
/**
* \brief Query the pixels of a texture, if the texture does not need to be
* locked for pixel access.
*
* \param texture A texture to be queried, which was created with
* ::SDL_TEXTUREACCESS_STREAMING.
* \param pixels A pointer filled with a pointer to the pixels for the
* texture.
* \param pitch A pointer filled in with the pitch of the pixel data.
*
* \return 0 on success, or -1 if the texture is not valid, or must be locked
* for pixel access.
*/
extern DECLSPEC int SDLCALL SDL_QueryTexturePixels(SDL_Texture * texture,
void **pixels, int *pitch);
/**
* \brief Set the color palette of an indexed texture.
*
* \param texture The texture to update.
* \param colors The array of RGB color data.
* \param firstcolor The first index to update.
* \param ncolors The number of palette entries to fill with the color data.
*
* \return 0 on success, or -1 if the texture is not valid or not an indexed
* texture.
*/
extern DECLSPEC int SDLCALL SDL_SetTexturePalette(SDL_Texture * texture,
const SDL_Color * colors,
int firstcolor,
int ncolors);
/**
* \brief Get the color palette from an indexed texture if it has one.
*
* \param texture The texture to update.
* \param colors The array to fill with RGB color data.
* \param firstcolor The first index to retrieve.
* \param ncolors The number of palette entries to retrieve.
*
* \return 0 on success, or -1 if the texture is not valid or not an indexed
* texture.
*/
extern DECLSPEC int SDLCALL SDL_GetTexturePalette(SDL_Texture * texture,
SDL_Color * colors,
int firstcolor,
int ncolors);
/**
* \brief Set an additional color value used in render copy operations.
*
* \param texture The texture to update.
* \param r The red source color value multiplied into copy operations.
* \param g The green source color value multiplied into copy operations.
* \param b The blue source color value multiplied into copy operations.
*
* \return 0 on success, or -1 if the texture is not valid or color modulation
* is not supported.
*
* \sa SDL_GetTextureColorMod()
*/
extern DECLSPEC int SDLCALL SDL_SetTextureColorMod(SDL_Texture * texture,
Uint8 r, Uint8 g, Uint8 b);
/**
* \brief Get the additional color value used in render copy operations.
*
* \param texture The texture to query.
* \param r A pointer filled in with the source red color value.
* \param g A pointer filled in with the source green color value.
* \param b A pointer filled in with the source blue color value.
*
* \return 0 on success, or -1 if the texture is not valid.
*
* \sa SDL_SetTextureColorMod()
*/
extern DECLSPEC int SDLCALL SDL_GetTextureColorMod(SDL_Texture * texture,
Uint8 * r, Uint8 * g,
Uint8 * b);
/**
* \brief Set an additional alpha value used in render copy operations.
*
* \param texture The texture to update.
* \param alpha The source alpha value multiplied into copy operations.
*
* \return 0 on success, or -1 if the texture is not valid or alpha modulation
* is not supported.
*
* \sa SDL_GetTextureAlphaMod()
*/
extern DECLSPEC int SDLCALL SDL_SetTextureAlphaMod(SDL_Texture * texture,
Uint8 alpha);
/**
* \brief Get the additional alpha value used in render copy operations.
*
* \param texture The texture to query.
* \param alpha A pointer filled in with the source alpha value.
*
* \return 0 on success, or -1 if the texture is not valid.
*
* \sa SDL_SetTextureAlphaMod()
*/
extern DECLSPEC int SDLCALL SDL_GetTextureAlphaMod(SDL_Texture * texture,
Uint8 * alpha);
/**
* \brief Set the blend mode used for texture copy operations.
*
* \param texture The texture to update.
* \param blendMode ::SDL_BlendMode to use for texture blending.
*
* \return 0 on success, or -1 if the texture is not valid or the blend mode is
* not supported.
*
* \note If the blend mode is not supported, the closest supported mode is
* chosen.
*
* \sa SDL_GetTextureBlendMode()
*/
extern DECLSPEC int SDLCALL SDL_SetTextureBlendMode(SDL_Texture * texture,
int blendMode);
/**
* \brief Get the blend mode used for texture copy operations.
*
* \param texture The texture to query.
* \param blendMode A pointer filled in with the current blend mode.
*
* \return 0 on success, or -1 if the texture is not valid.
*
* \sa SDL_SetTextureBlendMode()
*/
extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture,
int *blendMode);
/**
* \brief Set the scale mode used for texture copy operations.
*
* \param texture The texture to update.
* \param scaleMode ::SDL_TextureScaleMode to use for texture scaling.
*
* \return 0 on success, or -1 if the texture is not valid or the scale mode is
* not supported.
*
* \note If the scale mode is not supported, the closest supported mode is
* chosen.
*
* \sa SDL_GetTextureScaleMode()
*/
extern DECLSPEC int SDLCALL SDL_SetTextureScaleMode(SDL_Texture * texture,
int scaleMode);
/**
* \brief Get the scale mode used for texture copy operations.
*
* \param texture The texture to query.
* \param scaleMode A pointer filled in with the current scale mode.
*
* \return 0 on success, or -1 if the texture is not valid.
*
* \sa SDL_SetTextureScaleMode()
*/
extern DECLSPEC int SDLCALL SDL_GetTextureScaleMode(SDL_Texture * texture,
int *scaleMode);
/**
* \brief Update the given texture rectangle with new pixel data.
*
* \param texture The texture to update
* \param rect A pointer to the rectangle of pixels to update, or NULL to
* update the entire texture.
* \param pixels The raw pixel data.
* \param pitch The number of bytes between rows of pixel data.
*
* \return 0 on success, or -1 if the texture is not valid.
*
* \note This is a fairly slow function.
*/
extern DECLSPEC int SDLCALL SDL_UpdateTexture(SDL_Texture * texture,
const SDL_Rect * rect,
const void *pixels, int pitch);
/**
* \brief Lock a portion of the texture for pixel access.
*
* \param texture The texture to lock for access, which was created with
* ::SDL_TEXTUREACCESS_STREAMING.
* \param rect A pointer to the rectangle to lock for access. If the rect
* is NULL, the entire texture will be locked.
* \param markDirty If this is nonzero, the locked area will be marked dirty
* when the texture is unlocked.
* \param pixels This is filled in with a pointer to the locked pixels,
* appropriately offset by the locked area.
* \param pitch This is filled in with the pitch of the locked pixels.
*
* \return 0 on success, or -1 if the texture is not valid or was created with
* ::SDL_TEXTUREACCESS_STATIC.
*
* \sa SDL_DirtyTexture()
* \sa SDL_UnlockTexture()
*/
extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_Texture * texture,
const SDL_Rect * rect,
int markDirty, void **pixels,
int *pitch);
/**
* \brief Unlock a texture, uploading the changes to video memory, if needed.
*
* \sa SDL_LockTexture()
* \sa SDL_DirtyTexture()
*/
extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_Texture * texture);
/**
* \brief Mark the specified rectangles of the texture as dirty.
*
* \param texture The texture to mark dirty, which was created with
* ::SDL_TEXTUREACCESS_STREAMING.
* \param numrects The number of rectangles pointed to by rects.
* \param rects The pointer to an array of dirty rectangles.
*
* \sa SDL_LockTexture()
* \sa SDL_UnlockTexture()
*/
extern DECLSPEC void SDLCALL SDL_DirtyTexture(SDL_Texture * texture,
int numrects,
const SDL_Rect * rects);
/**
* \brief Set the color used for drawing operations (Fill and Line).
*
* \param r The red value used to draw on the rendering target.
* \param g The green value used to draw on the rendering target.
* \param b The blue value used to draw on the rendering target.
* \param a The alpha value used to draw on the rendering target, usually
* ::SDL_ALPHA_OPAQUE (255).
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b,
Uint8 a);
/**
* \brief Get the color used for drawing operations (Fill and Line).
*
* \param r A pointer to the red value used to draw on the rendering target.
* \param g A pointer to the green value used to draw on the rendering target.
* \param b A pointer to the blue value used to draw on the rendering target.
* \param a A pointer to the alpha value used to draw on the rendering target,
* usually ::SDL_ALPHA_OPAQUE (255).
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b,
Uint8 * a);
/**
* \brief Set the blend mode used for drawing operations (Fill and Line).
*
* \param blendMode ::SDL_BlendMode to use for blending.
*
* \return 0 on success, or -1 if there is no rendering context current.
*
* \note If the blend mode is not supported, the closest supported mode is
* chosen.
*
* \sa SDL_GetRenderDrawBlendMode()
*/
extern DECLSPEC int SDLCALL SDL_SetRenderDrawBlendMode(int blendMode);
/**
* \brief Get the blend mode used for drawing operations.
*
* \param blendMode A pointer filled in with the current blend mode.
*
* \return 0 on success, or -1 if there is no rendering context current.
*
* \sa SDL_SetRenderDrawBlendMode()
*/
extern DECLSPEC int SDLCALL SDL_GetRenderDrawBlendMode(int *blendMode);
/**
* \brief Clear the current rendering target with the drawing color
*/
extern DECLSPEC int SDLCALL SDL_RenderClear(void);
/**
* \brief Draw a point on the current rendering target.
*
* \param x The x coordinate of the point.
* \param y The y coordinate of the point.
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderDrawPoint(int x, int y);
/**
* \brief Draw some number of points on the current rendering target.
*
* \param points The points to draw
* \param count The number of points to draw
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderDrawPoints(const SDL_Point * points,
int count);
/**
* \brief Draw a line on the current rendering target.
*
* \param x1 The x coordinate of the start point.
* \param y1 The y coordinate of the start point.
* \param x2 The x coordinate of the end point.
* \param y2 The y coordinate of the end point.
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderDrawLine(int x1, int y1, int x2, int y2);
/**
* \brief Draw a series of connected lines on the current rendering target.
*
* \param points The points along the lines
* \param count The number of points, drawing count-1 lines
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderDrawLines(const SDL_Point * points,
int count);
/**
* \brief Draw a rectangle on the current rendering target with the drawing color.
*
* \param rect A pointer to the destination rectangle, or NULL to outline the entire rendering target.
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderDrawRect(const SDL_Rect * rect);
/**
* \brief Draw some number of rectangles in the current rendering target with the drawing color.
*
* \param rects A pointer to an array of destination rectangles.
* \param count The number of rectangles.
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderDrawRects(const SDL_Rect ** rect, int count);
/**
* \brief Fill a rectangle on the current rendering target with the drawing color.
*
* \param rect A pointer to the destination rectangle, or NULL for the entire
* rendering target.
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderFillRect(const SDL_Rect * rect);
/**
* \brief Fill some number of rectangles in the current rendering target with the drawing color.
*
* \param rects A pointer to an array of destination rectangles.
* \param count The number of rectangles.
*
* \return 0 on success, or -1 if there is no rendering context current.
*/
extern DECLSPEC int SDLCALL SDL_RenderFillRects(const SDL_Rect ** rect, int count);
/**
* \brief Copy a portion of the texture to the current rendering target.
*
* \param texture The source texture.
* \param srcrect A pointer to the source rectangle, or NULL for the entire
* texture.
* \param dstrect A pointer to the destination rectangle, or NULL for the
* entire rendering target.
*
* \return 0 on success, or -1 if there is no rendering context current, or the
* driver doesn't support the requested operation.
*/
extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_Texture * texture,
const SDL_Rect * srcrect,
const SDL_Rect * dstrect);
/**
* \brief Read pixels from the current rendering target.
*
* \param rect A pointer to the rectangle to read, or NULL for the entire
* render target.
* \param format The desired format of the pixel data, or 0 to use the format
* of the rendering target
* \param pixels A pointer to be filled in with the pixel data
* \param pitch The pitch of the pixels parameter.
*
* \return 0 on success, or -1 if pixel reading is not supported.
*
* \warning This is a very slow operation, and should not be used frequently.
*/
extern DECLSPEC int SDLCALL SDL_RenderReadPixels(const SDL_Rect * rect,
Uint32 format,
void *pixels, int pitch);
/**
* \brief Write pixels to the current rendering target.
*
* \param rect A pointer to the rectangle to write, or NULL for the entire
* render target.
* \param format The format of the pixel data, or 0 to use the format
* of the rendering target
* \param pixels A pointer to the pixel data to write.
* \param pitch The pitch of the pixels parameter.
*
* \return 0 on success, or -1 if pixel writing is not supported.
*
* \warning This is a very slow operation, and should not be used frequently.
*/
extern DECLSPEC int SDLCALL SDL_RenderWritePixels(const SDL_Rect * rect,
Uint32 format,
const void *pixels,
int pitch);
/**
* \brief Update the screen with rendering performed.
*/
extern DECLSPEC void SDLCALL SDL_RenderPresent(void);
/**
* \brief Destroy the specified texture.
*
* \sa SDL_CreateTexture()
* \sa SDL_CreateTextureFromSurface()
*/
extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_Texture * texture);
/**
* \brief Destroy the rendering context for a window and free associated
* textures.
*
* \sa SDL_CreateRenderer()
*/
extern DECLSPEC void SDLCALL SDL_DestroyRenderer(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 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 the 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: */