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view docs/man3/SDL_VideoInfo.3 @ 3100:7dc982143c06
Date: Sun, 22 Mar 2009 12:52:29 +0000
From: Luke Benstead
Subject: OpenGL 3.0 Context Creation
I've attached a patch which implements OpenGL 3.x context creation on
the latest SVN. I've added two options to SDL_GL_SetAttribute, these
are SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION.
These default to 2 and 1 respectively. If the major version is less
than 3 then the current context creation method is used, otherwise the
appropriate new context creation function is called (depending on the
platform).
Sample code:
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("Unable to initialize SDL: %s\n", SDL_GetError());
return 1;
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); //Without these 2 lines, SDL will create a GL 2.x context
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_Surface* screen = SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL | SDL_FULLSCREEN );
I've implemented context creation on both Win32 and X and run basic
tests on both. This patch doesn't provide access to all the options
allowed by the new context creation (e.g. shared contexts, forward
compatible contexts) but they can be added pretty easily.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 24 Mar 2009 10:43:53 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
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.TH "SDL_VideoInfo" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_VideoInfo \- Video Target information .SH "STRUCTURE DEFINITION" .PP .nf \f(CWtypedef struct{ Uint32 hw_available:1; Uint32 wm_available:1; Uint32 blit_hw:1; Uint32 blit_hw_CC:1; Uint32 blit_hw_A:1; Uint32 blit_sw:1; Uint32 blit_sw_CC:1; Uint32 blit_sw_A:1; Uint32 blit_fill; Uint32 video_mem; SDL_PixelFormat *vfmt; } SDL_VideoInfo;\fR .fi .PP .SH "STRUCTURE DATA" .TP 20 \fBhw_available\fR Is it possible to create hardware surfaces? .TP 20 \fBwm_available\fR Is there a window manager available .TP 20 \fBblit_hw\fR Are hardware to hardware blits accelerated? .TP 20 \fBblit_hw_CC\fR Are hardware to hardware colorkey blits accelerated? .TP 20 \fBblit_hw_A\fR Are hardware to hardware alpha blits accelerated? .TP 20 \fBblit_sw\fR Are software to hardware blits accelerated? .TP 20 \fBblit_sw_CC\fR Are software to hardware colorkey blits accelerated? .TP 20 \fBblit_sw_A\fR Are software to hardware alpha blits accelerated? .TP 20 \fBblit_fill\fR Are color fills accelerated? .TP 20 \fBvideo_mem\fR Total amount of video memory in Kilobytes .TP 20 \fBvfmt\fR \fIPixel format\fR of the video device .SH "DESCRIPTION" .PP This (read-only) structure is returned by \fI\fBSDL_GetVideoInfo\fP\fR\&. It contains information on either the \&'best\&' available mode (if called before \fI\fBSDL_SetVideoMode\fP\fR) or the current video mode\&. .SH "SEE ALSO" .PP \fI\fBSDL_PixelFormat\fR\fR, \fI\fBSDL_GetVideoInfo\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01