Cycles: Metal host-side code

This patch adds the Metal host-side code:

- Add all core host-side Metal backend files (device_impl, queue, etc)
- Add MetalRT BVH setup files
- Integrate with Cycles device enumeration code
- Revive `path_source_replace_includes` in util/path (required for MSL compilation)

This patch also includes a couple of small kernel-side fixes:

- Add an implementation of `lgammaf` for Metal [Nemes, Gergő (2010), "New asymptotic expansion for the Gamma function", Archiv der Mathematik](https://users.renyi.hu/~gergonemes/)
- include "work_stealing.h" inside the Metal context class because it accesses state now

Ref T92212

Reviewed By: brecht

Maniphest Tasks: T92212

Differential Revision: https://developer.blender.org/D13423

1 files changed, 4 insertions, 3 deletions

diff --git a/intern/cycles/kernel/device/gpu/kernel.h b/intern/cycles/kernel/device/gpu/kernel.h
index 0f88063e3b7..b50f492e8c7 100644
--- a/intern/cycles/kernel/device/gpu/kernel.h
+++ b/intern/cycles/kernel/device/gpu/kernel.h
@@ -19,7 +19,6 @@
 #include "kernel/device/gpu/parallel_active_index.h"
 #include "kernel/device/gpu/parallel_prefix_sum.h"
 #include "kernel/device/gpu/parallel_sorted_index.h"
-#include "kernel/device/gpu/work_stealing.h"
 
 #include "kernel/sample/lcg.h"
 
@@ -30,6 +29,8 @@
 #  include "kernel/device/metal/context_begin.h"
 #endif
 
+#include "kernel/device/gpu/work_stealing.h"
+
 #include "kernel/integrator/state.h"
 #include "kernel/integrator/state_flow.h"
 #include "kernel/integrator/state_util.h"
@@ -96,7 +97,7 @@ ccl_gpu_kernel(GPU_KERNEL_BLOCK_NUM_THREADS, GPU_KERNEL_MAX_REGISTERS)
   const int state = tile->path_index_offset + tile_work_index;
 
   uint x, y, sample;
-  get_work_pixel(tile, tile_work_index, &x, &y, &sample);
+  ccl_gpu_kernel_call(get_work_pixel(tile, tile_work_index, &x, &y, &sample));
 
   ccl_gpu_kernel_call(
       integrator_init_from_camera(nullptr, state, tile, render_buffer, x, y, sample));
@@ -127,7 +128,7 @@ ccl_gpu_kernel(GPU_KERNEL_BLOCK_NUM_THREADS, GPU_KERNEL_MAX_REGISTERS)
   const int state = tile->path_index_offset + tile_work_index;
 
   uint x, y, sample;
-  get_work_pixel(tile, tile_work_index, &x, &y, &sample);
+  ccl_gpu_kernel_call(get_work_pixel(tile, tile_work_index, &x, &y, &sample));
 
   ccl_gpu_kernel_call(
       integrator_init_from_bake(nullptr, state, tile, render_buffer, x, y, sample));