opengl: avoid GL_MAX_FRAGMENT_UNIFORM_VECTORS on 2.1

Unavailable. cf. #111
haasn · Nov 19, 2021 · 9f0c143 · 9f0c143
1 parent 93d05c4
commit 9f0c143
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/opengl/gpu.c b/src/opengl/gpu.c
@@ -172,8 +172,9 @@ pl_gpu pl_gpu_create_gl(pl_log log, pl_opengl gl, const struct pl_opengl_params
     // This doesn't really map too well to OpenGL, so just set a conservative
     // upper bound, which assumes (optimistically) that all uniforms are
     // individual floats.
-    size_t max_vectors = 0;
-    get(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &max_vectors);
+    size_t max_vectors = 16; // conservative default
+    if (gl_test_ext(gpu, NULL, 30, 20))
+        get(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &max_vectors);
     limits->max_variables = max_vectors * 4;
 
     if (glsl->compute) {