Mercurial > sdl-ios-xcode
view docs/man3/SDL_GL_LoadLibrary.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_GL_LoadLibrary" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_GL_LoadLibrary\- Specify an OpenGL library .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_GL_LoadLibrary\fP\fR(\fBconst char *path\fR); .SH "DESCRIPTION" .PP If you wish, you may load the OpenGL library at runtime, this must be done before \fI\fBSDL_SetVideoMode\fP\fR is called\&. The \fBpath\fR of the GL library is passed to \fBSDL_GL_LoadLibrary\fP and it returns \fB0\fR on success, or \fB-1\fR on an error\&. You must then use \fI\fBSDL_GL_GetProcAddress\fP\fR to retrieve function pointers to GL functions\&. .SH "SEE ALSO" .PP \fI\fBSDL_GL_GetProcAddress\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01