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Use OS X cursor workaround for GL_VENDOR ATI and add an environment variable for control

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This commit is contained in:
scrawl 2017-02-19 13:38:38 +01:00
parent 481c440698
commit 3b24bb9a5e
1 changed files with 9 additions and 2 deletions
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11
components/sdlutil/sdlcursormanager.cpp
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@ -3,6 +3,7 @@
#include <cassert>
#include <stdexcept>
#include <iostream>
#include <cstdlib>
#include <SDL_mouse.h>
#include <SDL_endian.h>
@ -81,6 +82,8 @@ namespace
osg::ref_ptr<osg::Image> decompress (osg::ref_ptr<osg::Image> source, float rotDegrees)
{
// TODO: use software decompression once S3TC patent expires
int width = source->s();
int height = source->t();
@ -130,9 +133,13 @@ namespace
osg::ref_ptr<osg::Geometry> geom;
#if defined(__APPLE__)
// Extra flip needed on Intel graphics OS X systems due to a driver bug
// Extra flip needed on OS X systems due to a driver bug
const char* envval = getenv("OPENMW_CURSOR_WORKAROUND");
bool workaround = !envval || envval == std::string("1");
std::string vendorString = (const char*)glGetString(GL_VENDOR);
if (vendorString.find("Intel") != std::string::npos)
if (!envval)
workaround = vendorString.find("Intel") != std::string::npos || vendorString.find("ATI") != std::string::npos || vendorString.find("AMD") != std::string::npos;
if (workaround)
geom = osg::createTexturedQuadGeometry(osg::Vec3(-1,1,0), osg::Vec3(2,0,0), osg::Vec3(0,-2,0));
else
#endif