Metal: MTLBatch and MTLDrawList implementation.

MTLBatch and MTLDrawList implementation enables use of Metal Viewport for UI and Workbench. Includes Vertex descriptor caching and SSBO Vertex Fetch mode draw call submission.

Authored by Apple: Michael Parkin-White

Ref T96261

Reviewed By: fclem

Maniphest Tasks: T96261

Differential Revision: https://developer.blender.org/D16101

1 files changed, 23 insertions, 14 deletions

diff --git a/source/blender/draw/intern/draw_manager_data.cc b/source/blender/draw/intern/draw_manager_data.cc
index 9768f1ce9e7..981206e56fe 100644
--- a/source/blender/draw/intern/draw_manager_data.cc
+++ b/source/blender/draw/intern/draw_manager_data.cc
@@ -1714,23 +1714,32 @@ static void drw_shgroup_init(DRWShadingGroup *shgroup, GPUShader *shader)
   }
 
 #ifdef DEBUG
-  int debug_print_location = GPU_shader_get_builtin_ssbo(shader, GPU_STORAGE_BUFFER_DEBUG_PRINT);
-  if (debug_print_location != -1) {
-    GPUStorageBuf *buf = drw_debug_gpu_print_buf_get();
-    drw_shgroup_uniform_create_ex(
-        shgroup, debug_print_location, DRW_UNIFORM_STORAGE_BLOCK, buf, GPU_SAMPLER_DEFAULT, 0, 1);
+  /* TODO(Metal): Support Shader debug print.
+   * This is not currently supported by Metal Backend. */
+  if (GPU_backend_get_type() != GPU_BACKEND_METAL) {
+    int debug_print_location = GPU_shader_get_builtin_ssbo(shader, GPU_STORAGE_BUFFER_DEBUG_PRINT);
+    if (debug_print_location != -1) {
+      GPUStorageBuf *buf = drw_debug_gpu_print_buf_get();
+      drw_shgroup_uniform_create_ex(shgroup,
+                                    debug_print_location,
+                                    DRW_UNIFORM_STORAGE_BLOCK,
+                                    buf,
+                                    GPU_SAMPLER_DEFAULT,
+                                    0,
+                                    1);
 #  ifndef DISABLE_DEBUG_SHADER_PRINT_BARRIER
-    /* Add a barrier to allow multiple shader writing to the same buffer. */
-    DRW_shgroup_barrier(shgroup, GPU_BARRIER_SHADER_STORAGE);
+      /* Add a barrier to allow multiple shader writing to the same buffer. */
+      DRW_shgroup_barrier(shgroup, GPU_BARRIER_SHADER_STORAGE);
 #  endif
-  }
+    }
 
-  int debug_draw_location = GPU_shader_get_builtin_ssbo(shader, GPU_STORAGE_BUFFER_DEBUG_VERTS);
-  if (debug_draw_location != -1) {
-    GPUStorageBuf *buf = drw_debug_gpu_draw_buf_get();
-    drw_shgroup_uniform_create_ex(
-        shgroup, debug_draw_location, DRW_UNIFORM_STORAGE_BLOCK, buf, GPU_SAMPLER_DEFAULT, 0, 1);
-    /* NOTE(fclem): No barrier as ordering is not important. */
+    int debug_draw_location = GPU_shader_get_builtin_ssbo(shader, GPU_STORAGE_BUFFER_DEBUG_VERTS);
+    if (debug_draw_location != -1) {
+      GPUStorageBuf *buf = drw_debug_gpu_draw_buf_get();
+      drw_shgroup_uniform_create_ex(
+          shgroup, debug_draw_location, DRW_UNIFORM_STORAGE_BLOCK, buf, GPU_SAMPLER_DEFAULT, 0, 1);
+      /* NOTE(fclem): No barrier as ordering is not important. */
+    }
   }
 #endif