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Allow direct rendering with GLX versions older than 1.3 if the GLX

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extensions list includes "GLX_EXT_texture_from_pixmap".

BUG: 240956

svn path=/trunk/KDE/kdebase/workspace/; revision=1137668
This commit is contained in:
Fredrik Höglund 2010-06-13 23:05:37 +00:00
parent cf0f0cb325
commit abdd055665
1 changed files with 13 additions and 7 deletions
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20
opengltest/opengltest.cpp
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@ -37,11 +37,6 @@ int main(int argc, char *argv[])
if (!glXQueryVersion(dpy, &major, &minor))
return 1;
// glXCreatePixmap() is a GLX 1.3+ function.
// It is also provided by EXT_texture_from_pixmap, but only for indirect contexts.
if (major == 1 && minor < 3)
return 1;
int attribs[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
@ -62,7 +57,10 @@ int main(int argc, char *argv[])
if (!xvi)
return 1;
// Create a direct rendering context
GLXContext ctx = glXCreateContext(dpy, xvi, NULL, True);
if (!glXIsDirect(dpy, ctx))
return 1;
// Create a window using the visual.
// We only need it to make the context current
@ -73,9 +71,17 @@ int main(int argc, char *argv[])
Window win = XCreateWindow(dpy, DefaultRootWindow(dpy), 0, 0, 1, 1, 0,
xvi->depth, InputOutput, xvi->visual,
CWBackPixel | CWBorderPixel | CWColormap, &attr);
glXMakeCurrent(dpy, win, ctx);
// Assume that glXCreatePixmap() works with DRI2 drivers
// Try to make the context current
if (!glXMakeCurrent(dpy, win, ctx))
return 1;
// glXCreatePixmap() is a GLX 1.3+ function, but it's also provided by EXT_texture_from_pixmap
const char *glxExtensions = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
if ((major == 1 && minor < 3) && !strstr(glxExtensions, "GLX_EXT_texture_from_pixmap"))
return 1;
// Assume that direct rendering works with DRI2 drivers
const GLubyte *renderer = glGetString(GL_RENDERER);
if (strstr((const char *)renderer, "DRI2"))
return 0;