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Fix T45708: OpenSubdiv crashes on Windows with Intel cards 

Disable Intel cards for until we'll go to the root of the issue of the crash.
This will take a bit, so being so close to the release we go safe and disable
unstable GPU, so blender at least doesn't crash.

This could be bypassed by setting OPENSUBDIV_ALLOW_INTEL environment variable.
This commit is contained in:
Sergey Sharybin 2015-09-16 19:17:12 +05:00
parent 182b5736fb
commit 3f05d72a98
Notes: blender-bot 2023-10-12 12:49:04 +02:00 
Referenced by issue #45708, OSD Crash
1 changed files with 23 additions and 0 deletions
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23
intern/opensubdiv/opensubdiv_capi.cc
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@ -30,6 +30,7 @@
# include "iso646.h"
#endif
#include <stdlib.h>
#include <GL/glew.h>
#include <opensubdiv/osd/glMesh.h>
@ -294,6 +295,28 @@ const struct OpenSubdiv_TopologyRefinerDescr *openSubdiv_getGLMeshTopologyRefine
int openSubdiv_supportGPUDisplay(void)
{
{
/* Currently Intel GPUs has hard time working on Windows.
*
* For until we've got access to a hardware which demonstrates
* the issue we disable OpenSubdiv on Intel GPUs.
*/
static bool vendor_checked = false;
static bool is_intel = false;
if (!vendor_checked) {
const char *vendor = (const char *)glGetString(GL_VENDOR);
const char *renderer = (const char *)glGetString(GL_RENDERER);
if (strstr(vendor, "Intel")) {
if(getenv("OPENSUBDIV_ALLOW_INTEL") == NULL) {
is_intel = true;
}
}
}
if (is_intel) {
return false;
}
}
return GLEW_EXT_geometry_shader4 &&
GLEW_ARB_gpu_shader5 &&
GLEW_ARB_uniform_buffer_object;