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Force Mesa to use its own call

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Mesa does not support adaptive swapping but will sometimes report that
it does.  This prevents Mesa drivers from testing (and segfaulting) the
limits of their call

Fixes https://gitlab.com/kicad/code/kicad/issues/10069

(cherry picked from commit 100cf757fe19d031308726c4cec263f3e960d74f)
This commit is contained in:
Seth Hillbrand 2022-01-08 17:11:13 -08:00
parent 974a66ddec
commit f4d12fb19c
1 changed files with 7 additions and 3 deletions
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10
include/gl_utils.h
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@ -47,12 +47,16 @@ public:
Display *dpy = glXGetCurrentDisplay();
GLXDrawable drawable = glXGetCurrentDrawable();
std::string vendor( reinterpret_cast<const char*>( glGetString( GL_VENDOR ) ) );
bool is_mesa = ( vendor.find( "Mesa" ) != std::string::npos );
if( glXSwapIntervalEXT && glXQueryDrawable && dpy && drawable )
if( !is_mesa && glXSwapIntervalEXT && glXQueryDrawable && dpy && drawable )
{
std::string exts( glXQueryExtensionsString( dpy, DefaultScreen( dpy ) ) );
if( aVal < 0 )
{
if( !wxGLCanvas::IsExtensionSupported( "GLX_EXT_swap_control_tear" ) )
if( exts.find( "GLX_EXT_swap_control_tear" ) == std::string::npos )
{
aVal = 0;
}
@ -62,7 +66,7 @@ public:
// we need to be sure that late/adaptive swaps are
// enabled on the drawable.
unsigned lateSwapsEnabled;
unsigned lateSwapsEnabled = 0;
glXQueryDrawable( dpy, drawable, GLX_LATE_SWAPS_TEAR_EXT, &lateSwapsEnabled );
if( !lateSwapsEnabled )