Mercurial > sdl-ios-xcode
view docs/man3/SDL_VideoDriverName.3 @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 08 Jan 2006 21:18:15 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_VideoDriverName" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_VideoDriverName\- Obtain the name of the video driver .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBchar *\fBSDL_VideoDriverName\fP\fR(\fBchar *namebuf, int maxlen\fR); .SH "DESCRIPTION" .PP The buffer pointed to by \fBnamebuf\fR is filled up to a maximum of \fBmaxlen\fR characters (include the NULL terminator) with the name of the initialised video driver\&. The driver name is a simple one word identifier like "x11" or "windib"\&. .SH "RETURN VALUE" .PP Returns \fBNULL\fP if video has not been initialised with \fBSDL_Init\fP or a pointer to \fBnamebuf\fR otherwise\&. .SH "SEE ALSO" .PP \fI\fBSDL_Init\fP\fR \fI\fBSDL_InitSubSystem\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01