Win64: switch to using SDL2.

[xonotic/xonotic.git] / misc / builddeps / win64 / sdl / share / man / man3 / SDL_BlitSurface.3

diff --git a/misc/builddeps/win64/sdl/share/man/man3/SDL_BlitSurface.3 b/misc/builddeps/win64/sdl/share/man/man3/SDL_BlitSurface.3
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-.TH "SDL_BlitSurface" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
-.SH "NAME"
-SDL_BlitSurface \- This performs a fast blit from the source surface to the destination surface\&.
-.SH "SYNOPSIS"
-.PP
-\fB#include "SDL\&.h"
-.sp
-\fBint \fBSDL_BlitSurface\fP\fR(\fBSDL_Surface *src, SDL_Rect *srcrect, SDL_Surface *dst, SDL_Rect *dstrect\fR);
-.SH "DESCRIPTION"
-.PP
-This performs a fast blit from the source surface to the destination surface\&.
-.PP
-Only the position is used in the \fBdstrect\fR (the width and height are ignored)\&.
-.PP
-If either \fBsrcrect\fR or \fBdstrect\fR are \fBNULL\fP, the entire surface (\fBsrc\fR or \fBdst\fR) is copied\&.
-.PP
-The final blit rectangle is saved in \fBdstrect\fR after all clipping is performed (\fBsrcrect\fR is not modified)\&.
-.PP
-The blit function should not be called on a locked surface\&.
-.PP
-The results of blitting operations vary greatly depending on whether \fBSDL_SRCAPLHA\fP is set or not\&. See \fISDL_SetAlpha\fR for an explaination of how this affects your results\&. Colorkeying and alpha attributes also interact with surface blitting, as the following pseudo-code should hopefully explain\&. 
-.PP
-.nf
-\f(CWif (source surface has SDL_SRCALPHA set) {
-    if (source surface has alpha channel (that is, format->Amask != 0))
-        blit using per-pixel alpha, ignoring any colour key
-    else {
-        if (source surface has SDL_SRCCOLORKEY set)
-            blit using the colour key AND the per-surface alpha value
-        else
-            blit using the per-surface alpha value
-    }
-} else {
-    if (source surface has SDL_SRCCOLORKEY set)
-        blit using the colour key
-    else
-        ordinary opaque rectangular blit
-}\fR
-.fi
-.PP
-.SH "RETURN VALUE"
-.PP
-If the blit is successful, it returns \fB0\fR, otherwise it returns \fB-1\fR\&.
-.PP
-If either of the surfaces were in video memory, and the blit returns \fB-2\fR, the video memory was lost, so it should be reloaded with artwork and re-blitted: 
-.PP
-.nf
-\f(CW        while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) {
-                while ( SDL_LockSurface(image)) < 0 )
-                        Sleep(10);
-                -- Write image pixels to image->pixels --
-                SDL_UnlockSurface(image);
-        }\fR
-.fi
-.PP
- This happens under DirectX 5\&.0 when the system switches away from your fullscreen application\&. Locking the surface will also fail until you have access to the video memory again\&.
-.SH "SEE ALSO"
-.PP
-\fI\fBSDL_LockSurface\fP\fR, \fI\fBSDL_FillRect\fP\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_Rect\fR\fR
-.\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01