GPU: Add Image Load Store extension support

This wraps the functionality used to speedup EEVEE volumetrics.

This touches the rendering code of EEVEE as it should fix a mis-usage of
the GL barrier. The barrier changed type and location, removing an
unused barrier.

1 files changed, 15 insertions, 0 deletions

diff --git a/source/blender/gpu/intern/gpu_texture.cc b/source/blender/gpu/intern/gpu_texture.cc
index b22fd53f0f6..09dbf04210a 100644
--- a/source/blender/gpu/intern/gpu_texture.cc
+++ b/source/blender/gpu/intern/gpu_texture.cc
@@ -418,6 +418,21 @@ void GPU_texture_unbind_all(void)
   Context::get()->state_manager->texture_unbind_all();
 }
 
+void GPU_texture_image_bind(GPUTexture *tex, int unit)
+{
+  Context::get()->state_manager->image_bind(unwrap(tex), unit);
+}
+
+void GPU_texture_image_unbind(GPUTexture *tex)
+{
+  Context::get()->state_manager->image_unbind(unwrap(tex));
+}
+
+void GPU_texture_image_unbind_all(void)
+{
+  Context::get()->state_manager->image_unbind_all();
+}
+
 void GPU_texture_generate_mipmap(GPUTexture *tex)
 {
   reinterpret_cast<Texture *>(tex)->generate_mipmap();