Update bundled SDL headers/libs

1 files changed, 502 insertions, 0 deletions

diff --git a/src/SDL2/include/SDL_surface.h b/src/SDL2/include/SDL_surface.h
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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2012 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_surface.h
+ *  
+ *  Header file for ::SDL_surface definition and management functions.
+ */
+
+#ifndef _SDL_surface_h
+#define _SDL_surface_h
+
+#include "SDL_stdinc.h"
+#include "SDL_pixels.h"
+#include "SDL_rect.h"
+#include "SDL_blendmode.h"
+#include "SDL_rwops.h"
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+extern "C" {
+/* *INDENT-ON* */
+#endif
+
+/**
+ *  \name Surface flags
+ *  
+ *  These are the currently supported flags for the ::SDL_surface.
+ *  
+ *  \internal
+ *  Used internally (read-only).
+ */
+/*@{*/
+#define SDL_SWSURFACE       0           /**< Just here for compatibility */
+#define SDL_PREALLOC        0x00000001  /**< Surface uses preallocated memory */
+#define SDL_RLEACCEL        0x00000002  /**< Surface is RLE encoded */
+#define SDL_DONTFREE        0x00000004  /**< Surface is referenced internally */
+/*@}*//*Surface flags*/
+
+/**
+ *  Evaluates to true if the surface needs to be locked before access.
+ */
+#define SDL_MUSTLOCK(S)	(((S)->flags & SDL_RLEACCEL) != 0)
+
+/**
+ * \brief A collection of pixels used in software blitting.
+ *
+ * \note  This structure should be treated as read-only, except for \c pixels,
+ *        which, if not NULL, contains the raw pixel data for the surface.
+ */
+typedef struct SDL_Surface
+{
+    Uint32 flags;               /**< Read-only */
+    SDL_PixelFormat *format;    /**< Read-only */
+    int w, h;                   /**< Read-only */
+    int pitch;                  /**< Read-only */
+    void *pixels;               /**< Read-write */
+
+    /** Application data associated with the surface */
+    void *userdata;             /**< Read-write */
+
+    /** information needed for surfaces requiring locks */
+    int locked;                 /**< Read-only */
+    void *lock_data;            /**< Read-only */
+
+    /** clipping information */
+    SDL_Rect clip_rect;         /**< Read-only */
+
+    /** info for fast blit mapping to other surfaces */
+    struct SDL_BlitMap *map;    /**< Private */
+
+    /** Reference count -- used when freeing surface */
+    int refcount;               /**< Read-mostly */
+} SDL_Surface;
+
+/**
+ * \brief The type of function used for surface blitting functions.
+ */
+typedef int (*SDL_blit) (struct SDL_Surface * src, SDL_Rect * srcrect,
+                         struct SDL_Surface * dst, SDL_Rect * dstrect);
+
+/**
+ *  Allocate and free an RGB surface.
+ *  
+ *  If the depth is 4 or 8 bits, an empty palette is allocated for the surface.
+ *  If the depth is greater than 8 bits, the pixel format is set using the
+ *  flags '[RGB]mask'.
+ *  
+ *  If the function runs out of memory, it will return NULL.
+ *  
+ *  \param flags The \c flags are obsolete and should be set to 0.
+ */
+extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface
+    (Uint32 flags, int width, int height, int depth,
+     Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
+extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
+                                                              int width,
+                                                              int height,
+                                                              int depth,
+                                                              int pitch,
+                                                              Uint32 Rmask,
+                                                              Uint32 Gmask,
+                                                              Uint32 Bmask,
+                                                              Uint32 Amask);
+extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface);
+
+/**
+ *  \brief Set the palette used by a surface.
+ *  
+ *  \return 0, or -1 if the surface format doesn't use a palette.
+ *  
+ *  \note A single palette can be shared with many surfaces.
+ */
+extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
+                                                  SDL_Palette * palette);
+
+/**
+ *  \brief Sets up a surface for directly accessing the pixels.
+ *  
+ *  Between calls to SDL_LockSurface() / SDL_UnlockSurface(), you can write
+ *  to and read from \c surface->pixels, using the pixel format stored in 
+ *  \c surface->format.  Once you are done accessing the surface, you should 
+ *  use SDL_UnlockSurface() to release it.
+ *  
+ *  Not all surfaces require locking.  If SDL_MUSTLOCK(surface) evaluates
+ *  to 0, then you can read and write to the surface at any time, and the
+ *  pixel format of the surface will not change.
+ *  
+ *  No operating system or library calls should be made between lock/unlock
+ *  pairs, as critical system locks may be held during this time.
+ *  
+ *  SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked.
+ *  
+ *  \sa SDL_UnlockSurface()
+ */
+extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface);
+/** \sa SDL_LockSurface() */
+extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface);
+
+/**
+ *  Load a surface from a seekable SDL data stream (memory or file).
+ *  
+ *  If \c freesrc is non-zero, the stream will be closed after being read.
+ *  
+ *  The new surface should be freed with SDL_FreeSurface().
+ *  
+ *  \return the new surface, or NULL if there was an error.
+ */
+extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src,
+                                                    int freesrc);
+
+/**
+ *  Load a surface from a file.
+ *  
+ *  Convenience macro.
+ */
+#define SDL_LoadBMP(file)	SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1)
+
+/**
+ *  Save a surface to a seekable SDL data stream (memory or file).
+ *  
+ *  If \c freedst is non-zero, the stream will be closed after being written.
+ *  
+ *  \return 0 if successful or -1 if there was an error.
+ */
+extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
+    (SDL_Surface * surface, SDL_RWops * dst, int freedst);
+
+/** 
+ *  Save a surface to a file.
+ *  
+ *  Convenience macro.
+ */
+#define SDL_SaveBMP(surface, file) \
+		SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1)
+
+/**
+ *  \brief Sets the RLE acceleration hint for a surface.
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid
+ *  
+ *  \note If RLE is enabled, colorkey and alpha blending blits are much faster,
+ *        but the surface must be locked before directly accessing the pixels.
+ */
+extern DECLSPEC int SDLCALL SDL_SetSurfaceRLE(SDL_Surface * surface,
+                                              int flag);
+
+/**
+ *  \brief Sets the color key (transparent pixel) in a blittable surface.
+ *  
+ *  \param surface The surface to update
+ *  \param flag Non-zero to enable colorkey and 0 to disable colorkey
+ *  \param key The transparent pixel in the native surface format
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid
+ *
+ *  You can pass SDL_RLEACCEL to enable RLE accelerated blits.
+ */
+extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface,
+                                            int flag, Uint32 key);
+
+/**
+ *  \brief Gets the color key (transparent pixel) in a blittable surface.
+ *  
+ *  \param surface The surface to update
+ *  \param key A pointer filled in with the transparent pixel in the native 
+ *             surface format
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid or colorkey is not 
+ *          enabled.
+ */
+extern DECLSPEC int SDLCALL SDL_GetColorKey(SDL_Surface * surface,
+                                            Uint32 * key);
+
+/**
+ *  \brief Set an additional color value used in blit operations.
+ *  
+ *  \param surface The surface to update.
+ *  \param r The red color value multiplied into blit operations.
+ *  \param g The green color value multiplied into blit operations.
+ *  \param b The blue color value multiplied into blit operations.
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid.
+ *  
+ *  \sa SDL_GetSurfaceColorMod()
+ */
+extern DECLSPEC int SDLCALL SDL_SetSurfaceColorMod(SDL_Surface * surface,
+                                                   Uint8 r, Uint8 g, Uint8 b);
+
+
+/**
+ *  \brief Get the additional color value used in blit operations.
+ *  
+ *  \param surface The surface to query.
+ *  \param r A pointer filled in with the current red color value.
+ *  \param g A pointer filled in with the current green color value.
+ *  \param b A pointer filled in with the current blue color value.
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid.
+ *  
+ *  \sa SDL_SetSurfaceColorMod()
+ */
+extern DECLSPEC int SDLCALL SDL_GetSurfaceColorMod(SDL_Surface * surface,
+                                                   Uint8 * r, Uint8 * g,
+                                                   Uint8 * b);
+
+/**
+ *  \brief Set an additional alpha value used in blit operations.
+ *  
+ *  \param surface The surface to update.
+ *  \param alpha The alpha value multiplied into blit operations.
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid.
+ *  
+ *  \sa SDL_GetSurfaceAlphaMod()
+ */
+extern DECLSPEC int SDLCALL SDL_SetSurfaceAlphaMod(SDL_Surface * surface,
+                                                   Uint8 alpha);
+
+/**
+ *  \brief Get the additional alpha value used in blit operations.
+ *  
+ *  \param surface The surface to query.
+ *  \param alpha A pointer filled in with the current alpha value.
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid.
+ *  
+ *  \sa SDL_SetSurfaceAlphaMod()
+ */
+extern DECLSPEC int SDLCALL SDL_GetSurfaceAlphaMod(SDL_Surface * surface,
+                                                   Uint8 * alpha);
+
+/**
+ *  \brief Set the blend mode used for blit operations.
+ *  
+ *  \param surface The surface to update.
+ *  \param blendMode ::SDL_BlendMode to use for blit blending.
+ *  
+ *  \return 0 on success, or -1 if the parameters are not valid.
+ *  
+ *  \sa SDL_GetSurfaceBlendMode()
+ */
+extern DECLSPEC int SDLCALL SDL_SetSurfaceBlendMode(SDL_Surface * surface,
+                                                    SDL_BlendMode blendMode);
+
+/**
+ *  \brief Get the blend mode used for blit operations.
+ *  
+ *  \param surface   The surface to query.
+ *  \param blendMode A pointer filled in with the current blend mode.
+ *  
+ *  \return 0 on success, or -1 if the surface is not valid.
+ *  
+ *  \sa SDL_SetSurfaceBlendMode()
+ */
+extern DECLSPEC int SDLCALL SDL_GetSurfaceBlendMode(SDL_Surface * surface,
+                                                    SDL_BlendMode *blendMode);
+
+/**
+ *  Sets the clipping rectangle for the destination surface in a blit.
+ *  
+ *  If the clip rectangle is NULL, clipping will be disabled.
+ *  
+ *  If the clip rectangle doesn't intersect the surface, the function will
+ *  return SDL_FALSE and blits will be completely clipped.  Otherwise the
+ *  function returns SDL_TRUE and blits to the surface will be clipped to
+ *  the intersection of the surface area and the clipping rectangle.
+ *  
+ *  Note that blits are automatically clipped to the edges of the source
+ *  and destination surfaces.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface,
+                                                 const SDL_Rect * rect);
+
+/**
+ *  Gets the clipping rectangle for the destination surface in a blit.
+ *  
+ *  \c rect must be a pointer to a valid rectangle which will be filled
+ *  with the correct values.
+ */
+extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface * surface,
+                                             SDL_Rect * rect);
+
+/**
+ *  Creates a new surface of the specified format, and then copies and maps 
+ *  the given surface to it so the blit of the converted surface will be as 
+ *  fast as possible.  If this function fails, it returns NULL.
+ *  
+ *  The \c flags parameter is passed to SDL_CreateRGBSurface() and has those 
+ *  semantics.  You can also pass ::SDL_RLEACCEL in the flags parameter and
+ *  SDL will try to RLE accelerate colorkey and alpha blits in the resulting
+ *  surface.
+ */
+extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface
+    (SDL_Surface * src, SDL_PixelFormat * fmt, Uint32 flags);
+extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurfaceFormat
+    (SDL_Surface * src, Uint32 pixel_format, Uint32 flags);
+
+/**
+ * \brief Copy a block of pixels of one format to another format
+ *  
+ *  \return 0 on success, or -1 if there was an error
+ */
+extern DECLSPEC int SDLCALL SDL_ConvertPixels(int width, int height,
+                                              Uint32 src_format,
+                                              const void * src, int src_pitch,
+                                              Uint32 dst_format,
+                                              void * dst, int dst_pitch);
+
+/**
+ *  Performs a fast fill of the given rectangle with \c color.
+ *  
+ *  If \c rect is NULL, the whole surface will be filled with \c color.
+ *  
+ *  The color should be a pixel of the format used by the surface, and 
+ *  can be generated by the SDL_MapRGB() function.
+ *  
+ *  \return 0 on success, or -1 on error.
+ */
+extern DECLSPEC int SDLCALL SDL_FillRect
+    (SDL_Surface * dst, const SDL_Rect * rect, Uint32 color);
+extern DECLSPEC int SDLCALL SDL_FillRects
+    (SDL_Surface * dst, const SDL_Rect * rects, int count, Uint32 color);
+
+/**
+ *  Performs a fast blit from the source surface to the destination surface.
+ *  
+ *  This assumes that the source and destination rectangles are
+ *  the same size.  If either \c srcrect or \c dstrect are NULL, the entire
+ *  surface (\c src or \c dst) is copied.  The final blit rectangles are saved
+ *  in \c srcrect and \c dstrect after all clipping is performed.
+ *  
+ *  \return If the blit is successful, it returns 0, otherwise it returns -1.
+ *
+ *  The blit function should not be called on a locked surface.
+ *
+ *  The blit semantics for surfaces with and without alpha and colorkey
+ *  are defined as follows:
+ *  \verbatim
+    RGBA->RGB:
+      SDL_SRCALPHA set:
+        alpha-blend (using alpha-channel).
+        SDL_SRCCOLORKEY ignored.
+      SDL_SRCALPHA not set:
+        copy RGB.
+        if SDL_SRCCOLORKEY set, only copy the pixels matching the
+        RGB values of the source colour key, ignoring alpha in the
+        comparison.
+   
+    RGB->RGBA:
+      SDL_SRCALPHA set:
+        alpha-blend (using the source per-surface alpha value);
+        set destination alpha to opaque.
+      SDL_SRCALPHA not set:
+        copy RGB, set destination alpha to source per-surface alpha value.
+      both:
+        if SDL_SRCCOLORKEY set, only copy the pixels matching the
+        source colour key.
+   
+    RGBA->RGBA:
+      SDL_SRCALPHA set:
+        alpha-blend (using the source alpha channel) the RGB values;
+        leave destination alpha untouched. [Note: is this correct?]
+        SDL_SRCCOLORKEY ignored.
+      SDL_SRCALPHA not set:
+        copy all of RGBA to the destination.
+        if SDL_SRCCOLORKEY set, only copy the pixels matching the
+        RGB values of the source colour key, ignoring alpha in the
+       comparison.
+   
+    RGB->RGB: 
+      SDL_SRCALPHA set:
+        alpha-blend (using the source per-surface alpha value).
+      SDL_SRCALPHA not set:
+        copy RGB.
+      both:
+        if SDL_SRCCOLORKEY set, only copy the pixels matching the
+        source colour key.
+    \endverbatim
+ *  
+ *  You should call SDL_BlitSurface() unless you know exactly how SDL
+ *  blitting works internally and how to use the other blit functions.
+ */
+#define SDL_BlitSurface SDL_UpperBlit
+
+/**
+ *  This is the public blit function, SDL_BlitSurface(), and it performs
+ *  rectangle validation and clipping before passing it to SDL_LowerBlit()
+ */
+extern DECLSPEC int SDLCALL SDL_UpperBlit
+    (SDL_Surface * src, const SDL_Rect * srcrect,
+     SDL_Surface * dst, SDL_Rect * dstrect);
+
+/**
+ *  This is a semi-private blit function and it performs low-level surface
+ *  blitting only.
+ */
+extern DECLSPEC int SDLCALL SDL_LowerBlit
+    (SDL_Surface * src, SDL_Rect * srcrect,
+     SDL_Surface * dst, SDL_Rect * dstrect);
+
+/**
+ *  \brief Perform a fast, low quality, stretch blit between two surfaces of the
+ *         same pixel format.
+ *  
+ *  \note This function uses a static buffer, and is not thread-safe.
+ */
+extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface * src,
+                                            const SDL_Rect * srcrect,
+                                            SDL_Surface * dst,
+                                            const SDL_Rect * dstrect);
+
+#define SDL_BlitScaled SDL_UpperBlitScaled
+
+/**
+ *  This is the public scaled blit function, SDL_BlitScaled(), and it performs
+ *  rectangle validation and clipping before passing it to SDL_LowerBlitScaled()
+ */
+extern DECLSPEC int SDLCALL SDL_UpperBlitScaled
+    (SDL_Surface * src, const SDL_Rect * srcrect,
+    SDL_Surface * dst, SDL_Rect * dstrect);
+
+/**
+ *  This is a semi-private blit function and it performs low-level surface
+ *  scaled blitting only.
+ */
+extern DECLSPEC int SDLCALL SDL_LowerBlitScaled
+    (SDL_Surface * src, SDL_Rect * srcrect,
+    SDL_Surface * dst, SDL_Rect * dstrect);
+
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+}
+/* *INDENT-ON* */
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_surface_h */
+
+/* vi: set ts=4 sw=4 expandtab: */