arreglat makefile, info.plist i sdl.frameworks per a compilar en macos intel

This commit is contained in:
2025-03-25 11:42:23 +01:00
parent 04dd66319a
commit 9cc41aaf53
74 changed files with 4759 additions and 3760 deletions
@@ -1,6 +1,6 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
Copyright (C) 1997-2025 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
@@ -20,9 +20,9 @@
*/
/**
* \file SDL_surface.h
* # CategorySurface
*
* Header file for ::SDL_Surface definition and management functions.
* Header file for SDL_Surface definition and management functions.
*/
#ifndef SDL_surface_h_
@@ -43,7 +43,7 @@ extern "C" {
/**
* \name Surface flags
*
* These are the currently supported flags for the ::SDL_Surface.
* These are the currently supported flags for the SDL_Surface.
*
* \internal
* Used internally (read-only).
@@ -57,17 +57,17 @@ extern "C" {
/* @} *//* Surface flags */
/**
* 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)
typedef struct SDL_BlitMap SDL_BlitMap; /* this is an opaque type. */
/**
* \brief A collection of pixels used in software blitting.
* 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.
* This structure should be treated as read-only, except for `pixels`, which,
* if not NULL, contains the raw pixel data for the surface.
*/
typedef struct SDL_Surface
{
@@ -97,15 +97,15 @@ typedef struct SDL_Surface
} SDL_Surface;
/**
* \brief The type of function used for surface blitting functions.
* The type of function used for surface blitting functions.
*/
typedef int (SDLCALL *SDL_blit) (struct SDL_Surface * src, SDL_Rect * srcrect,
struct SDL_Surface * dst, SDL_Rect * dstrect);
/**
* \brief The formula used for converting between YUV and RGB
* The formula used for converting between YUV and RGB
*/
typedef enum
typedef enum SDL_YUV_CONVERSION_MODE
{
SDL_YUV_CONVERSION_JPEG, /**< Full range JPEG */
SDL_YUV_CONVERSION_BT601, /**< BT.601 (the default) */
@@ -140,14 +140,14 @@ typedef enum
* You can change this by calling SDL_SetSurfaceBlendMode() and selecting a
* different `blendMode`.
*
* \param flags the flags are unused and should be set to 0
* \param width the width of the surface
* \param height the height of the surface
* \param depth the depth of the surface in bits
* \param Rmask the red mask for the pixels
* \param Gmask the green mask for the pixels
* \param Bmask the blue mask for the pixels
* \param Amask the alpha mask for the pixels
* \param flags the flags are unused and should be set to 0.
* \param width the width of the surface.
* \param height the height of the surface.
* \param depth the depth of the surface in bits.
* \param Rmask the red mask for the pixels.
* \param Gmask the green mask for the pixels.
* \param Bmask the blue mask for the pixels.
* \param Amask the alpha mask for the pixels.
* \returns the new SDL_Surface structure that is created or NULL if it fails;
* call SDL_GetError() for more information.
*
@@ -171,10 +171,10 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface
* of providing pixel color masks, you provide it with a predefined format
* from SDL_PixelFormatEnum.
*
* \param flags the flags are unused and should be set to 0
* \param width the width of the surface
* \param height the height of the surface
* \param depth the depth of the surface in bits
* \param flags the flags are unused and should be set to 0.
* \param width the width of the surface.
* \param height the height of the surface.
* \param depth the depth of the surface in bits.
* \param format the SDL_PixelFormatEnum for the new surface's pixel format.
* \returns the new SDL_Surface structure that is created or NULL if it fails;
* call SDL_GetError() for more information.
@@ -198,15 +198,15 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceWithFormat
* No copy is made of the pixel data. Pixel data is not managed automatically;
* you must free the surface before you free the pixel data.
*
* \param pixels a pointer to existing pixel data
* \param width the width of the surface
* \param height the height of the surface
* \param depth the depth of the surface in bits
* \param pitch the pitch of the surface in bytes
* \param Rmask the red mask for the pixels
* \param Gmask the green mask for the pixels
* \param Bmask the blue mask for the pixels
* \param Amask the alpha mask for the pixels
* \param pixels a pointer to existing pixel data.
* \param width the width of the surface.
* \param height the height of the surface.
* \param depth the depth of the surface in bits.
* \param pitch the pitch of the surface in bytes.
* \param Rmask the red mask for the pixels.
* \param Gmask the green mask for the pixels.
* \param Bmask the blue mask for the pixels.
* \param Amask the alpha mask for the pixels.
* \returns the new SDL_Surface structure that is created or NULL if it fails;
* call SDL_GetError() for more information.
*
@@ -214,6 +214,7 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceWithFormat
*
* \sa SDL_CreateRGBSurface
* \sa SDL_CreateRGBSurfaceWithFormat
* \sa SDL_CreateRGBSurfaceWithFormatFrom
* \sa SDL_FreeSurface
*/
extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
@@ -239,11 +240,11 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
* No copy is made of the pixel data. Pixel data is not managed automatically;
* you must free the surface before you free the pixel data.
*
* \param pixels a pointer to existing pixel data
* \param width the width of the surface
* \param height the height of the surface
* \param depth the depth of the surface in bits
* \param pitch the pitch of the surface in bytes
* \param pixels a pointer to existing pixel data.
* \param width the width of the surface.
* \param height the height of the surface.
* \param depth the depth of the surface in bits.
* \param pitch the pitch of the surface in bytes.
* \param format the SDL_PixelFormatEnum for the new surface's pixel format.
* \returns the new SDL_Surface structure that is created or NULL if it fails;
* call SDL_GetError() for more information.
@@ -278,8 +279,8 @@ extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface);
*
* A single palette can be shared with many surfaces.
*
* \param surface the SDL_Surface structure to update
* \param palette the SDL_Palette structure to use
* \param surface the SDL_Surface structure to update.
* \param palette the SDL_Palette structure to use.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -300,7 +301,7 @@ extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
* 0, then you can read and write to the surface at any time, and the pixel
* format of the surface will not change.
*
* \param surface the SDL_Surface structure to be locked
* \param surface the SDL_Surface structure to be locked.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -314,7 +315,7 @@ extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface);
/**
* Release a surface after directly accessing the pixels.
*
* \param surface the SDL_Surface structure to be unlocked
* \param surface the SDL_Surface structure to be unlocked.
*
* \since This function is available since SDL 2.0.0.
*
@@ -329,11 +330,11 @@ extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface);
* result in a memory leak.
*
* src is an open SDL_RWops buffer, typically loaded with SDL_RWFromFile.
* Alternitavely, you might also use the macro SDL_LoadBMP to load a bitmap
* Alternatively, you might also use the macro SDL_LoadBMP to load a bitmap
* from a file, convert it to an SDL_Surface and then close the file.
*
* \param src the data stream for the surface
* \param freesrc non-zero to close the stream after being read
* \param src the data stream for the surface.
* \param freesrc non-zero to close the stream after being read.
* \returns a pointer to a new SDL_Surface structure or NULL if there was an
* error; call SDL_GetError() for more information.
*
@@ -363,9 +364,9 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src,
* surface before they are saved. YUV and paletted 1-bit and 4-bit formats are
* not supported.
*
* \param surface the SDL_Surface structure containing the image to be saved
* \param dst a data stream to save to
* \param freedst non-zero to close the stream after being written
* \param surface the SDL_Surface structure containing the image to be saved.
* \param dst a data stream to save to.
* \param freedst non-zero to close the stream after being written.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -378,9 +379,9 @@ extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
(SDL_Surface * surface, SDL_RWops * dst, int freedst);
/**
* Save a surface to a file.
* Save a surface to a file.
*
* Convenience macro.
* Convenience macro.
*/
#define SDL_SaveBMP(surface, file) \
SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1)
@@ -391,8 +392,8 @@ extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
* If RLE is enabled, color key and alpha blending blits are much faster, but
* the surface must be locked before directly accessing the pixels.
*
* \param surface the SDL_Surface structure to optimize
* \param flag 0 to disable, non-zero to enable RLE acceleration
* \param surface the SDL_Surface structure to optimize.
* \param flag 0 to disable, non-zero to enable RLE acceleration.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -410,7 +411,7 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceRLE(SDL_Surface * surface,
*
* It is safe to pass a NULL `surface` here; it will return SDL_FALSE.
*
* \param surface the SDL_Surface structure to query
* \param surface the SDL_Surface structure to query.
* \returns SDL_TRUE if the surface is RLE enabled, SDL_FALSE otherwise.
*
* \since This function is available since SDL 2.0.14.
@@ -432,9 +433,9 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasSurfaceRLE(SDL_Surface * surface);
* RLE acceleration can substantially speed up blitting of images with large
* horizontal runs of transparent pixels. See SDL_SetSurfaceRLE() for details.
*
* \param surface the SDL_Surface structure to update
* \param flag SDL_TRUE to enable color key, SDL_FALSE to disable color key
* \param key the transparent pixel
* \param surface the SDL_Surface structure to update.
* \param flag SDL_TRUE to enable color key, SDL_FALSE to disable color key.
* \param key the transparent pixel.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -451,7 +452,7 @@ extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface,
*
* It is safe to pass a NULL `surface` here; it will return SDL_FALSE.
*
* \param surface the SDL_Surface structure to query
* \param surface the SDL_Surface structure to query.
* \return SDL_TRUE if the surface has a color key, SDL_FALSE otherwise.
*
* \since This function is available since SDL 2.0.9.
@@ -469,8 +470,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasColorKey(SDL_Surface * surface);
*
* If the surface doesn't have color key enabled this function returns -1.
*
* \param surface the SDL_Surface structure to query
* \param key a pointer filled in with the transparent pixel
* \param surface the SDL_Surface structure to query.
* \param key a pointer filled in with the transparent pixel.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -491,10 +492,10 @@ extern DECLSPEC int SDLCALL SDL_GetColorKey(SDL_Surface * surface,
*
* `srcC = srcC * (color / 255)`
*
* \param surface the SDL_Surface structure 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
* \param surface the SDL_Surface structure 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.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -510,10 +511,10 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceColorMod(SDL_Surface * surface,
/**
* Get the additional color value multiplied into blit operations.
*
* \param surface the SDL_Surface structure 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
* \param surface the SDL_Surface structure 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.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -534,8 +535,8 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceColorMod(SDL_Surface * surface,
*
* `srcA = srcA * (alpha / 255)`
*
* \param surface the SDL_Surface structure to update
* \param alpha the alpha value multiplied into blit operations
* \param surface the SDL_Surface structure to update.
* \param alpha the alpha value multiplied into blit operations.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -550,8 +551,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceAlphaMod(SDL_Surface * surface,
/**
* Get the additional alpha value used in blit operations.
*
* \param surface the SDL_Surface structure to query
* \param alpha a pointer filled in with the current alpha value
* \param surface the SDL_Surface structure to query.
* \param alpha a pointer filled in with the current alpha value.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -570,8 +571,8 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceAlphaMod(SDL_Surface * surface,
* existing data, the blendmode of the SOURCE surface should be set to
* `SDL_BLENDMODE_NONE`.
*
* \param surface the SDL_Surface structure to update
* \param blendMode the SDL_BlendMode to use for blit blending
* \param surface the SDL_Surface structure to update.
* \param blendMode the SDL_BlendMode to use for blit blending.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -585,8 +586,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceBlendMode(SDL_Surface * surface,
/**
* Get the blend mode used for blit operations.
*
* \param surface the SDL_Surface structure to query
* \param blendMode a pointer filled in with the current SDL_BlendMode
* \param surface the SDL_Surface structure to query.
* \param blendMode a pointer filled in with the current SDL_BlendMode.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -606,9 +607,9 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceBlendMode(SDL_Surface * surface,
* Note that blits are automatically clipped to the edges of the source and
* destination surfaces.
*
* \param surface the SDL_Surface structure to be clipped
* \param surface the SDL_Surface structure to be clipped.
* \param rect the SDL_Rect structure representing the clipping rectangle, or
* NULL to disable clipping
* NULL to disable clipping.
* \returns SDL_TRUE if the rectangle intersects the surface, otherwise
* SDL_FALSE and blits will be completely clipped.
*
@@ -627,9 +628,9 @@ extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface,
* rectangle is drawn into.
*
* \param surface the SDL_Surface structure representing the surface to be
* clipped
* clipped.
* \param rect an SDL_Rect structure filled in with the clipping rectangle for
* the surface
* the surface.
*
* \since This function is available since SDL 2.0.0.
*
@@ -658,11 +659,11 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_DuplicateSurface(SDL_Surface * surface)
* surface. The new, optimized surface can then be used as the source for
* future blits, making them faster.
*
* \param src the existing SDL_Surface structure to convert
* \param src the existing SDL_Surface structure to convert.
* \param fmt the SDL_PixelFormat structure that the new surface is optimized
* for
* for.
* \param flags the flags are unused and should be set to 0; this is a
* leftover from SDL 1.2's API
* leftover from SDL 1.2's API.
* \returns the new SDL_Surface structure that is created or NULL if it fails;
* call SDL_GetError() for more information.
*
@@ -683,11 +684,11 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface
* it might be easier to call but it doesn't have access to palette
* information for the destination surface, in case that would be important.
*
* \param src the existing SDL_Surface structure to convert
* \param src the existing SDL_Surface structure to convert.
* \param pixel_format the SDL_PixelFormatEnum that the new surface is
* optimized for
* optimized for.
* \param flags the flags are unused and should be set to 0; this is a
* leftover from SDL 1.2's API
* leftover from SDL 1.2's API.
* \returns the new SDL_Surface structure that is created or NULL if it fails;
* call SDL_GetError() for more information.
*
@@ -703,14 +704,14 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurfaceFormat
/**
* Copy a block of pixels of one format to another format.
*
* \param width the width of the block to copy, in pixels
* \param height the height of the block to copy, in pixels
* \param src_format an SDL_PixelFormatEnum value of the `src` pixels format
* \param src a pointer to the source pixels
* \param src_pitch the pitch of the source pixels, in bytes
* \param dst_format an SDL_PixelFormatEnum value of the `dst` pixels format
* \param dst a pointer to be filled in with new pixel data
* \param dst_pitch the pitch of the destination pixels, in bytes
* \param width the width of the block to copy, in pixels.
* \param height the height of the block to copy, in pixels.
* \param src_format an SDL_PixelFormatEnum value of the `src` pixels format.
* \param src a pointer to the source pixels.
* \param src_pitch the pitch of the source pixels, in bytes.
* \param dst_format an SDL_PixelFormatEnum value of the `dst` pixels format.
* \param dst a pointer to be filled in with new pixel data.
* \param dst_pitch the pitch of the destination pixels, in bytes.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -729,14 +730,14 @@ extern DECLSPEC int SDLCALL SDL_ConvertPixels(int width, int height,
*
* This function is currently only implemented for SDL_PIXELFORMAT_ARGB8888.
*
* \param width the width of the block to convert, in pixels
* \param height the height of the block to convert, in pixels
* \param src_format an SDL_PixelFormatEnum value of the `src` pixels format
* \param src a pointer to the source pixels
* \param src_pitch the pitch of the source pixels, in bytes
* \param dst_format an SDL_PixelFormatEnum value of the `dst` pixels format
* \param dst a pointer to be filled in with premultiplied pixel data
* \param dst_pitch the pitch of the destination pixels, in bytes
* \param width the width of the block to convert, in pixels.
* \param height the height of the block to convert, in pixels.
* \param src_format an SDL_PixelFormatEnum value of the `src` pixels format.
* \param src a pointer to the source pixels.
* \param src_pitch the pitch of the source pixels, in bytes.
* \param dst_format an SDL_PixelFormatEnum value of the `dst` pixels format.
* \param dst a pointer to be filled in with premultiplied pixel data.
* \param dst_pitch the pitch of the destination pixels, in bytes.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -760,10 +761,10 @@ extern DECLSPEC int SDLCALL SDL_PremultiplyAlpha(int width, int height,
* SDL_SetClipRect()), then this function will fill based on the intersection
* of the clip rectangle and `rect`.
*
* \param dst the SDL_Surface structure that is the drawing target
* \param dst the SDL_Surface structure that is the drawing target.
* \param rect the SDL_Rect structure representing the rectangle to fill, or
* NULL to fill the entire surface
* \param color the color to fill with
* NULL to fill the entire surface.
* \param color the color to fill with.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -786,10 +787,10 @@ extern DECLSPEC int SDLCALL SDL_FillRect
* SDL_SetClipRect()), then this function will fill based on the intersection
* of the clip rectangle and `rect`.
*
* \param dst the SDL_Surface structure that is the drawing target
* \param rects an array of SDL_Rects representing the rectangles to fill.
* \param count the number of rectangles in the array
* \param color the color to fill with
* \param dst the SDL_Surface structure that is the drawing target.
* \param rects an array of SDL_Rect representing the rectangles to fill.
* \param count the number of rectangles in the array.
* \param color the color to fill with.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -801,62 +802,64 @@ extern DECLSPEC int SDLCALL SDL_FillRects
(SDL_Surface * dst, const SDL_Rect * rects, int count, Uint32 color);
/* !!! FIXME: merge this documentation with the wiki */
/**
* Performs a fast blit from the source surface to the destination surface.
* 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.
* This assumes that the source and destination rectangles are the same size.
* If either `srcrect` or `dstrect` are NULL, the entire surface (`src` or
* `dst`) is copied. The final blit rectangles are saved in `srcrect` and
* `dstrect` after all clipping is performed.
*
* \returns 0 if the blit is successful, otherwise it returns -1.
* The blit function should not be called on a locked surface.
*
* The blit function should not be called on a locked surface.
* The blit semantics for surfaces with and without blending and colorkey are
* defined as follows:
*
* The blit semantics for surfaces with and without blending and colorkey
* are defined as follows:
* \verbatim
RGBA->RGB:
Source surface blend mode set to SDL_BLENDMODE_BLEND:
alpha-blend (using the source alpha-channel and per-surface alpha)
SDL_SRCCOLORKEY ignored.
Source surface blend mode set to SDL_BLENDMODE_NONE:
copy RGB.
if SDL_SRCCOLORKEY set, only copy the pixels matching the
RGB values of the source color key, ignoring alpha in the
comparison.
RGB->RGBA:
Source surface blend mode set to SDL_BLENDMODE_BLEND:
alpha-blend (using the source per-surface alpha)
Source surface blend mode set to SDL_BLENDMODE_NONE:
copy RGB, set destination alpha to source per-surface alpha value.
both:
if SDL_SRCCOLORKEY set, only copy the pixels matching the
source color key.
RGBA->RGBA:
Source surface blend mode set to SDL_BLENDMODE_BLEND:
alpha-blend (using the source alpha-channel and per-surface alpha)
SDL_SRCCOLORKEY ignored.
Source surface blend mode set to SDL_BLENDMODE_NONE:
copy all of RGBA to the destination.
if SDL_SRCCOLORKEY set, only copy the pixels matching the
RGB values of the source color key, ignoring alpha in the
comparison.
RGB->RGB:
Source surface blend mode set to SDL_BLENDMODE_BLEND:
alpha-blend (using the source per-surface alpha)
Source surface blend mode set to SDL_BLENDMODE_NONE:
copy RGB.
both:
if SDL_SRCCOLORKEY set, only copy the pixels matching the
source color key.
\endverbatim
* ```
* RGBA->RGB:
* Source surface blend mode set to SDL_BLENDMODE_BLEND:
* alpha-blend (using the source alpha-channel and per-surface alpha)
* SDL_SRCCOLORKEY ignored.
* Source surface blend mode set to SDL_BLENDMODE_NONE:
* copy RGB.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source color key, ignoring alpha in the
* comparison.
*
* You should call SDL_BlitSurface() unless you know exactly how SDL
* blitting works internally and how to use the other blit functions.
* RGB->RGBA:
* Source surface blend mode set to SDL_BLENDMODE_BLEND:
* alpha-blend (using the source per-surface alpha)
* Source surface blend mode set to SDL_BLENDMODE_NONE:
* copy RGB, set destination alpha to source per-surface alpha value.
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source color key.
*
* RGBA->RGBA:
* Source surface blend mode set to SDL_BLENDMODE_BLEND:
* alpha-blend (using the source alpha-channel and per-surface alpha)
* SDL_SRCCOLORKEY ignored.
* Source surface blend mode set to SDL_BLENDMODE_NONE:
* copy all of RGBA to the destination.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source color key, ignoring alpha in the
* comparison.
*
* RGB->RGB:
* Source surface blend mode set to SDL_BLENDMODE_BLEND:
* alpha-blend (using the source per-surface alpha)
* Source surface blend mode set to SDL_BLENDMODE_NONE:
* copy RGB.
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source color key.
* ```
*
* You should call SDL_BlitSurface() unless you know exactly how SDL blitting
* works internally and how to use the other blit functions.
*
* \returns 0 if the blit is successful, otherwise it returns -1.
*/
#define SDL_BlitSurface SDL_UpperBlit
@@ -883,12 +886,12 @@ extern DECLSPEC int SDLCALL SDL_UpperBlit
* Unless you know what you're doing, you should be using SDL_BlitSurface()
* instead.
*
* \param src the SDL_Surface structure to be copied from
* \param src the SDL_Surface structure to be copied from.
* \param srcrect the SDL_Rect structure representing the rectangle to be
* copied, or NULL to copy the entire surface
* \param dst the SDL_Surface structure that is the blit target
* copied, or NULL to copy the entire surface.
* \param dst the SDL_Surface structure that is the blit target.
* \param dstrect the SDL_Rect structure representing the rectangle that is
* copied into
* copied into.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
@@ -925,8 +928,6 @@ extern DECLSPEC int SDLCALL SDL_SoftStretchLinear(SDL_Surface * src,
const SDL_Rect * dstrect);
#define SDL_BlitScaled SDL_UpperBlitScaled
/**
* Perform a scaled surface copy to a destination surface.
*
@@ -941,18 +942,21 @@ extern DECLSPEC int SDLCALL SDL_UpperBlitScaled
(SDL_Surface * src, const SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect);
#define SDL_BlitScaled SDL_UpperBlitScaled
/**
* Perform low-level surface scaled blitting only.
*
* This is a semi-private function and it performs low-level surface blitting,
* assuming the input rectangles have already been clipped.
*
* \param src the SDL_Surface structure to be copied from
* \param src the SDL_Surface structure to be copied from.
* \param srcrect the SDL_Rect structure representing the rectangle to be
* copied
* \param dst the SDL_Surface structure that is the blit target
* copied.
* \param dst the SDL_Surface structure that is the blit target.
* \param dstrect the SDL_Rect structure representing the rectangle that is
* copied into
* copied into.
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*