GPUCapabilities: Add GPU_shader_draw_parameters_support

This checks for the availability of `gl_BaseInstanceARB` or equivalent.

Disabling for any workaround that disables shader_image_load_store_support
as a preventive measure.

2 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/gpu/intern/gpu_capabilities.cc b/source/blender/gpu/intern/gpu_capabilities.cc
index 18748627b83..73f94ecfb1b 100644
--- a/source/blender/gpu/intern/gpu_capabilities.cc
+++ b/source/blender/gpu/intern/gpu_capabilities.cc
@@ -161,6 +161,11 @@ bool GPU_shader_image_load_store_support()
   return GCaps.shader_image_load_store_support;
 }
 
+bool GPU_shader_draw_parameters_support()
+{
+  return GCaps.shader_draw_parameters_support;
+}
+
 int GPU_max_shader_storage_buffer_bindings()
 {
   return GCaps.max_shader_storage_buffer_bindings;
diff --git a/source/blender/gpu/intern/gpu_capabilities_private.hh b/source/blender/gpu/intern/gpu_capabilities_private.hh
index a17dbe7f8e6..dadd14791e7 100644
--- a/source/blender/gpu/intern/gpu_capabilities_private.hh
+++ b/source/blender/gpu/intern/gpu_capabilities_private.hh
@@ -44,6 +44,7 @@ struct GPUCapabilities {
   bool compute_shader_support = false;
   bool shader_storage_buffer_objects_support = false;
   bool shader_image_load_store_support = false;
+  bool shader_draw_parameters_support = false;
   bool transform_feedback_support = false;
 
   /* OpenGL related workarounds. */