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If GL_RENDERER begins with "Gallium", disable GL_PRIMITIVE_RESTART_FIXED_INDEX

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rdb 2015-02-15 14:19:47 +01:00
parent 7ed8cc9831
commit d447ec3bc6
1 changed files with 5 additions and 2 deletions
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7
panda/src/glstuff/glGraphicsStateGuardian_src.cxx
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@ -558,10 +558,13 @@ reset() {
_glPrimitiveRestartIndex = NULL;
if (gl_support_primitive_restart_index) {
if (is_at_least_gl_version(4, 3) || has_extension("GL_ARB_ES3_compatibility")) {
if ((is_at_least_gl_version(4, 3) || has_extension("GL_ARB_ES3_compatibility")) &&
_gl_renderer.substr(0, 7) != "Gallium") {
// As long as we enable this, OpenGL will always use the highest possible index
// for a numeric type as strip cut index, which coincides with our convention.
// This saves us a call to glPrimitiveRestartIndex.
// This saves us a call to glPrimitiveRestartIndex
// ... of course, though, the Gallium driver bugs out here. See also:
// https://www.panda3d.org/forums/viewtopic.php?f=5&t=17512
glEnable(GL_PRIMITIVE_RESTART_FIXED_INDEX);
_supported_geom_rendering |= Geom::GR_strip_cut_index;