1 files changed, 101 insertions, 0 deletions
diff --git a/source/blender/gpu/metal/mtl_context.mm b/source/blender/gpu/metal/mtl_context.mm
new file mode 100644
index 00000000000..313d928996b
--- /dev/null
+++ b/source/blender/gpu/metal/mtl_context.mm
@@ -0,0 +1,101 @@
+/** \file
+ * \ingroup gpu
+ */
+#include "mtl_context.hh"
+#include "mtl_debug.hh"
+
+using namespace blender;
+using namespace blender::gpu;
+
+namespace blender::gpu {
+
+/* -------------------------------------------------------------------- */
+/** \name Memory Management
+ * \{ */
+
+bool MTLTemporaryBufferRange::requires_flush()
+{
+  /* We do not need to flush shared memory */
+  return this->options & MTLResourceStorageModeManaged;
+}
+
+void MTLTemporaryBufferRange::flush()
+{
+  if (this->requires_flush()) {
+    BLI_assert(this->metal_buffer);
+    BLI_assert((this->buffer_offset + this->size) <= [this->metal_buffer length]);
+    BLI_assert(this->buffer_offset >= 0);
+    [this->metal_buffer
+        didModifyRange:NSMakeRange(this->buffer_offset, this->size - this->buffer_offset)];
+  }
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name MTLContext
+ * \{ */
+
+/* Placeholder functions */
+MTLContext::MTLContext(void *ghost_window)
+{
+  /* Init debug. */
+  debug::mtl_debug_init();
+
+  /* TODO(Metal): Implement. */
+}
+
+MTLContext::~MTLContext()
+{
+  /* TODO(Metal): Implement. */
+}
+
+void MTLContext::check_error(const char *info)
+{
+  /* TODO(Metal): Implement. */
+}
+
+void MTLContext::activate(void)
+{
+  /* TODO(Metal): Implement. */
+}
+void MTLContext::deactivate(void)
+{
+  /* TODO(Metal): Implement. */
+}
+
+void MTLContext::flush(void)
+{
+  /* TODO(Metal): Implement. */
+}
+void MTLContext::finish(void)
+{
+  /* TODO(Metal): Implement. */
+}
+
+void MTLContext::memory_statistics_get(int *total_mem, int *free_mem)
+{
+  /* TODO(Metal): Implement. */
+  *total_mem = 0;
+  *free_mem = 0;
+}
+
+id<MTLCommandBuffer> MTLContext::get_active_command_buffer()
+{
+  /* TODO(Metal): Implement. */
+  return nil;
+}
+
+/* Render Pass State and Management */
+void MTLContext::begin_render_pass()
+{
+  /* TODO(Metal): Implement. */
+}
+void MTLContext::end_render_pass()
+{
+  /* TODO(Metal): Implement. */
+}
+
+/** \} */
+
+}  // blender::gpu