Headless EGL: Fallback to a 24-bit depth buffer

2022-07-28 14:51:32 -07:00
parent 543d8efb25
commit 2fecda7bdc
1 changed files with 11 additions and 0 deletions
--- a/filament/backend/src/opengl/platforms/PlatformEGLHeadless.cpp
+++ b/filament/backend/src/opengl/platforms/PlatformEGLHeadless.cpp
@@ -138,6 +138,17 @@ backend::Driver* PlatformEGLHeadless::createDriver(void* sharedContext, const Pl
        goto error;
    }

+    // fallback to a 24-bit depth buffer
+    if (configsCount == 0) {
+        configAttribs[10] = EGL_DEPTH_SIZE;
+        configAttribs[11] = 24;
+
+        if (!eglChooseConfig(mEGLDisplay, configAttribs, &mEGLConfig, 1, &configsCount)) {
+            logEglError("eglChooseConfig");
+            goto error;
+        }
+    }
+
    // find a transparent config
    configAttribs[8] = EGL_ALPHA_SIZE;
    configAttribs[9] = 8;