Fix T45909: Garbage output in Viewport with OpenSubdiv device set to GLSL Compute
This isn't a Blender issue and the same bug happens with official OpenSubdiv examples. For until it's either worked around from OpenSubdiv side or fixed in the driver we'll force disable GLSL Compute for AMD hardware.
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Notes:
blender-bot
2023-02-14 08:47:32 +01:00
Referenced by issue #46253, Pull in new version of OpenSubdiv and re-enable AMD GLSL Compute Referenced by issue #45915, Can not select keys in Dope Sheet Referenced by issue #45916, Edge Slide crashes if you press R Referenced by issue #45909, Garbage output in Viewport with OpenSubdiv device set to GLSL Compute Referenced by issue #45708, OSD Crash
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@ -26,6 +26,7 @@
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#include "opensubdiv_capi.h"
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#include <cstring>
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#include <GL/glew.h>
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#ifdef _MSC_VER
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@ -71,7 +72,24 @@ int openSubdiv_getAvailableEvaluators(void)
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#endif /* OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK */
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#ifdef OPENSUBDIV_HAS_GLSL_COMPUTE
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flags |= OPENSUBDIV_EVALUATOR_GLSL_COMPUTE;
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static bool vendor_checked = false;
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static bool disable_glsl_compute = false;
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/* Force disable GLSL Compute on AMD hardware because it has really
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* hard time evaluating required shaders.
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*/
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if (!vendor_checked) {
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const char *vendor = (const char *)glGetString(GL_VENDOR);
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const char *renderer = (const char *)glGetString(GL_RENDERER);
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if (strstr(vendor, "ATI") ||
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strstr(renderer, "Mesa DRI R") ||
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(strstr(renderer, "Gallium ") && strstr(renderer, " on ATI ")))
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{
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disable_glsl_compute = true;
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}
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}
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if (!disable_glsl_compute) {
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flags |= OPENSUBDIV_EVALUATOR_GLSL_COMPUTE;
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}
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#endif /* OPENSUBDIV_HAS_GLSL_COMPUTE */
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return flags;
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