Index: include/SDL_surface.h =================================================================== --- include/SDL_surface.h (revision 4936) +++ include/SDL_surface.h (working copy) @@ -42,17 +42,18 @@ /* *INDENT-ON* */ #endif -/* These are the currently supported flags for the SDL_surface */ -/* Used internally (read-only) */ -#define SDL_PREALLOC 0x00000001 /* Surface uses preallocated memory */ -#define SDL_RLEACCEL 0x00000002 /* Surface is RLE encoded */ +/** These are the currently supported flags for the SDL_surface + * \internal Used internally (read-only) + */ +/*@{*/ +#define SDL_PREALLOC 0x00000001 /**< Surface uses preallocated memory */ +#define SDL_RLEACCEL 0x00000002 /**< Surface is RLE encoded */ +/*@}*/ -/* Evaluates to true if the surface needs to be locked before access */ +/** Evaluates to true if the surface needs to be locked before access */ #define SDL_MUSTLOCK(S) (((S)->flags & SDL_RLEACCEL) != 0) /** - * \struct SDL_Surface - * * \brief A collection of pixels used in software blitting * * \note This structure should be treated as read-only, except for 'pixels', @@ -87,21 +88,19 @@ } SDL_Surface; /** - * \typedef SDL_blit - * * \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 (must be called after SDL_SetVideoMode) * 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. * - * The 'flags' are obsolete and should be set to 0. + * \param flags The 'flags' are obsolete and should be set to 0. */ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface (Uint32 flags, int width, int height, int depth, @@ -118,8 +117,6 @@ extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface); /** - * \fn int SDL_SetSurfacePalette(SDL_Surface *surface, SDL_Palette *palette) - * * \brief Set the palette used by a surface. * * \return 0, or -1 if the surface format doesn't use a palette. @@ -129,8 +126,9 @@ extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface, SDL_Palette * palette); -/* - * SDL_LockSurface() sets up a surface for directly accessing the pixels. +/** + * \brief Sets up a surface for directly accessing the pixels. + * * Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write * to and read from 'surface->pixels', using the pixel format stored in * 'surface->format'. Once you are done accessing the surface, you should @@ -144,11 +142,14 @@ * 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 source (memory or file.) * If 'freesrc' is non-zero, the source will be closed after being read. * Returns the new surface, or NULL if there was an error. @@ -157,10 +158,10 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src, int freesrc); -/* Convenience macro -- load a surface from a file */ +/** Convenience macro -- load a surface from a file */ #define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1) -/* +/** * Save a surface to a seekable SDL data source (memory or file.) * If 'freedst' is non-zero, the source will be closed after being written. * Returns 0 if successful or -1 if there was an error. @@ -168,13 +169,11 @@ extern DECLSPEC int SDLCALL SDL_SaveBMP_RW (SDL_Surface * surface, SDL_RWops * dst, int freedst); -/* Convenience macro -- save a surface to a file */ +/** Convenience macro -- save a surface to a file */ #define SDL_SaveBMP(surface, file) \ SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1) -/* - * \fn int SDL_SetSurfaceRLE(SDL_Surface *surface, int flag) - * +/** * \brief Sets the RLE acceleration hint for a surface. * * \return 0 on success, or -1 if the surface is not valid @@ -185,9 +184,7 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceRLE(SDL_Surface * surface, int flag); -/* - * \fn int SDL_SetColorKey(SDL_Surface *surface, Uint32 flag, Uint32 key) - * +/** * \brief Sets the color key (transparent pixel) in a blittable surface. * * \param surface The surface to update @@ -199,9 +196,7 @@ extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key); -/* - * \fn int SDL_GetColorKey(SDL_Surface *surface, Uint32 *key) - * +/** * \brief Sets the color key (transparent pixel) in a blittable surface. * * \param surface The surface to update @@ -213,8 +208,6 @@ Uint32 * key); /** - * \fn int SDL_SetSurfaceColorMod(SDL_Surface *surface, Uint8 r, Uint8 g, Uint8 b) - * * \brief Set an additional color value used in blit operations * * \param surface The surface to update @@ -231,8 +224,6 @@ /** - * \fn int SDL_GetSurfaceColorMod(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 @@ -249,8 +240,6 @@ Uint8 * b); /** - * \fn int SDL_SetSurfaceAlphaMod(SDL_Surface *surface, Uint8 alpha) - * * \brief Set an additional alpha value used in blit operations * * \param surface The surface to update @@ -264,8 +253,6 @@ Uint8 alpha); /** - * \fn int SDL_GetSurfaceAlphaMod(SDL_Surface *surface, Uint8 *alpha) - * * \brief Get the additional alpha value used in blit operations * * \param surface The surface to query @@ -279,8 +266,6 @@ Uint8 * alpha); /** - * \fn int SDL_SetSurfaceBlendMode(SDL_Surface *surface, int blendMode) - * * \brief Set the blend mode used for blit operations * * \param surface The surface to update @@ -294,8 +279,6 @@ int blendMode); /** - * \fn int SDL_GetSurfaceBlendMode(SDL_Surface *surface, int *blendMode) - * * \brief Get the blend mode used for blit operations * * \param surface The surface to query @@ -309,8 +292,6 @@ int *blendMode); /** - * \fn int SDL_SetSurfaceScaleMode(SDL_Surface *surface, int scaleMode) - * * \brief Set the scale mode used for blit operations * * \param surface The surface to update @@ -326,8 +307,6 @@ int scaleMode); /** - * \fn int SDL_GetSurfaceScaleMode(SDL_Surface *surface, int *scaleMode) - * * \brief Get the scale mode used for blit operations * * \param surface The surface to query @@ -340,7 +319,7 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceScaleMode(SDL_Surface * surface, int *scaleMode); -/* +/** * Sets the clipping rectangle for the destination surface in a blit. * * If the clip rectangle is NULL, clipping will be disabled. @@ -355,7 +334,7 @@ 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. * 'rect' must be a pointer to a valid rectangle which will be filled * with the correct values. @@ -363,7 +342,7 @@ 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. @@ -378,66 +357,66 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface (SDL_Surface * src, SDL_PixelFormat * fmt, Uint32 flags); -/* +/** * This function draws a point with 'color' * The color should be a pixel of the format used by the surface, and * can be generated by the SDL_MapRGB() function. - * This function returns 0 on success, or -1 on error. + * \return This function returns 0 on success, or -1 on error. */ extern DECLSPEC int SDLCALL SDL_DrawPoint (SDL_Surface * dst, int x, int y, Uint32 color); -/* +/** * This function blends a point with an RGBA value * The color should be a pixel of the format used by the surface, and * can be generated by the SDL_MapRGB() function. - * This function returns 0 on success, or -1 on error. + * \return This function returns 0 on success, or -1 on error. */ extern DECLSPEC int SDLCALL SDL_BlendPoint (SDL_Surface * dst, int x, int y, int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a); -/* +/** * This function draws a line with 'color' * The color should be a pixel of the format used by the surface, and * can be generated by the SDL_MapRGB() function. - * This function returns 0 on success, or -1 on error. + * \return This function returns 0 on success, or -1 on error. */ extern DECLSPEC int SDLCALL SDL_DrawLine (SDL_Surface * dst, int x1, int y1, int x2, int y2, Uint32 color); -/* +/** * This function blends an RGBA value along a line - * This function returns 0 on success, or -1 on error. + * \return This function returns 0 on success, or -1 on error. */ extern DECLSPEC int SDLCALL SDL_BlendLine (SDL_Surface * dst, int x1, int y1, int x2, int y2, int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a); -/* +/** * This function performs a fast fill of the given rectangle with 'color' * The given rectangle is clipped to the destination surface clip area * and the final fill rectangle is saved in the passed in pointer. * If 'dstrect' is NULL, the whole surface will be filled with 'color' * The color should be a pixel of the format used by the surface, and * can be generated by the SDL_MapRGB() function. - * This function returns 0 on success, or -1 on error. + * \return This function returns 0 on success, or -1 on error. */ extern DECLSPEC int SDLCALL SDL_FillRect (SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color); -/* +/** * This function blends an RGBA value into the given rectangle. * The given rectangle is clipped to the destination surface clip area * and the final fill rectangle is saved in the passed in pointer. * If 'dstrect' is NULL, the whole surface will be filled with 'color' - * This function returns 0 on success, or -1 on error. + * \return This function returns 0 on success, or -1 on error. */ extern DECLSPEC int SDLCALL SDL_BlendRect (SDL_Surface * dst, SDL_Rect * dstrect, int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a); -/* +/** * This performs a fast blit from the source surface to the destination * surface. It assumes that the source and destination rectangles are * the same size. If either 'srcrect' or 'dstrect' are NULL, the entire @@ -493,37 +472,39 @@ * If either of the surfaces were in video memory, and the blit returns -2, * the video memory was lost, so it should be reloaded with artwork and * re-blitted: - while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) { - while ( SDL_LockSurface(image) < 0 ) - Sleep(10); - -- Write image pixels to image->pixels -- - SDL_UnlockSurface(image); - } + * @code + * while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) { + * while ( SDL_LockSurface(image) < 0 ) + * Sleep(10); + * -- Write image pixels to image->pixels -- + * SDL_UnlockSurface(image); + * } + * @endcode + * * This happens under DirectX 5.0 when the system switches away from your * fullscreen application. The lock will also fail until you have access * to the video memory again. + * + * You should call SDL_BlitSurface() unless you know exactly how SDL + * blitting works internally and how to use the other blit functions. */ -/* 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() -*/ +/** 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, SDL_Rect * srcrect, SDL_Surface * dst, SDL_Rect * dstrect); -/* This is a semi-private blit function and it performs low-level surface - blitting only. -*/ + +/** 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); /** - * \fn int SDL_SoftStretch(SDL_Surface * src, const SDL_Rect * srcrect, SDL_Surface * dst, const 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.