diff options
Diffstat (limited to 'src/glut/glx/glut_mesa.c')
-rw-r--r-- | src/glut/glx/glut_mesa.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/src/glut/glx/glut_mesa.c b/src/glut/glx/glut_mesa.c deleted file mode 100644 index 7e202fa0786..00000000000 --- a/src/glut/glx/glut_mesa.c +++ /dev/null @@ -1,57 +0,0 @@ - -/* Copyright (c) Mark J. Kilgard, 1996. */ - -/* This program is freely distributable without licensing fees - and is provided without guarantee or warrantee expressed or - implied. This program is -not- in the public domain. */ - -#include <stdlib.h> -#include <string.h> -#include "glutint.h" - -int __glutMesaSwapHackSupport = 0; /* Not supported until - proven otherwise. */ - -/* Use the "Mesa swap hack" if reasonable if and only if - MESA_SWAP_HACK is set to something whose first character is - not "N" or "n" AND "Brian Paul" is the vendor string AND - "Mesa X11"* (or "Mesa" for backward compatibility) is the - renderer string. - - Anyone who modifies Mesa so that glXSwapBuffers does not - simply blit the previously rendered back buffer should - change either their vendor or renderer string to avoid - confusing GLUT. */ - -void -__glutDetermineMesaSwapHackSupport(void) -{ - static int doneAlready = 0; - char *env, *vendor, *renderer; - - if (doneAlready) - return; - env = getenv("MESA_SWAP_HACK"); - if (env) { - if ((env[0] != 'n') && (env[0] != 'N')) { - vendor = (char *) glGetString(GL_VENDOR); - renderer = (char *) glGetString(GL_RENDERER); - - /* Old versions of X11 Mesa uses the renderer string - "Mesa"; Brian plans to start using "Mesa X11" to - distinguish the X version of Mesa from other flavor - such as Windows or 3Dfx. */ - -#define MESA_X11 "Mesa X11" - - /* XXX At some point in the future, eliminate the - backward compatibility for the old "Mesa" renderer - string. */ - - if (!strcmp(vendor, "Brian Paul") && (!strcmp(renderer, "Mesa") || - !strncmp(renderer, MESA_X11, sizeof(MESA_X11) - 1))) - __glutMesaSwapHackSupport = 1; - } - } - doneAlready = 1; -} |