From 0e6f2d9fe0f49de658414bf16a9babab61f1895a Mon Sep 17 00:00:00 2001
From: Jeroen Bakker <jbakker>
Date: Mon, 31 Oct 2022 16:01:02 +0100
Subject: GPU: Add placeholder for Vulkan backend.

This patch adds a placeholder for the vulkan backend.
When activated (`WITH_VULKAN_BACKEND=On` and `--gpu-backend vulkan`)
it might open a blender screen, but nothing should be visible as
none of the functions are implemented or otherwise crash on a nullptr.

This is expected as this is just a placeholder. The goal is to add shader compilation
+validation to this backend as one of the next steps so we can validate
changes to existing shaders on OpenGL, Metal and Vulkan at the same time.

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D16338
---
 source/blender/gpu/vulkan/vk_backend.cc | 107 ++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 source/blender/gpu/vulkan/vk_backend.cc

(limited to 'source/blender/gpu/vulkan/vk_backend.cc')

diff --git a/source/blender/gpu/vulkan/vk_backend.cc b/source/blender/gpu/vulkan/vk_backend.cc
new file mode 100644
index 00000000000..00bc43333d6
--- /dev/null
+++ b/source/blender/gpu/vulkan/vk_backend.cc
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2022 Blender Foundation. All rights reserved. */
+
+/** \file
+ * \ingroup gpu
+ */
+
+#include "vk_backend.hh"
+
+#include "vk_batch.hh"
+#include "vk_context.hh"
+#include "vk_drawlist.hh"
+#include "vk_framebuffer.hh"
+#include "vk_index_buffer.hh"
+#include "vk_query.hh"
+#include "vk_shader.hh"
+#include "vk_storage_buffer.hh"
+#include "vk_texture.hh"
+#include "vk_uniform_buffer.hh"
+#include "vk_vertex_buffer.hh"
+
+namespace blender::gpu {
+
+void VKBackend::delete_resources()
+{
+}
+
+void VKBackend::samplers_update()
+{
+}
+
+void VKBackend::compute_dispatch(int /*groups_x_len*/, int /*groups_y_len*/, int /*groups_z_len*/)
+{
+}
+
+void VKBackend::compute_dispatch_indirect(StorageBuf * /*indirect_buf*/)
+{
+}
+
+Context *VKBackend::context_alloc(void * /*ghost_window*/, void * /*ghost_context*/)
+{
+  return new VKContext();
+}
+
+Batch *VKBackend::batch_alloc()
+{
+  return new VKBatch();
+}
+
+DrawList *VKBackend::drawlist_alloc(int /*list_length*/)
+{
+  return new VKDrawList();
+}
+
+FrameBuffer *VKBackend::framebuffer_alloc(const char *name)
+{
+  return new VKFrameBuffer(name);
+}
+
+IndexBuf *VKBackend::indexbuf_alloc()
+{
+  return new VKIndexBuffer();
+}
+
+QueryPool *VKBackend::querypool_alloc()
+{
+  return new VKQueryPool();
+}
+
+Shader *VKBackend::shader_alloc(const char *name)
+{
+  return new VKShader(name);
+}
+
+Texture *VKBackend::texture_alloc(const char *name)
+{
+  return new VKTexture(name);
+}
+
+UniformBuf *VKBackend::uniformbuf_alloc(int size, const char *name)
+{
+  return new VKUniformBuffer(size, name);
+}
+
+StorageBuf *VKBackend::storagebuf_alloc(int size, GPUUsageType /*usage*/, const char *name)
+{
+  return new VKStorageBuffer(size, name);
+}
+
+VertBuf *VKBackend::vertbuf_alloc()
+{
+  return new VKVertexBuffer();
+}
+
+void VKBackend::render_begin()
+{
+}
+
+void VKBackend::render_end()
+{
+}
+
+void VKBackend::render_step()
+{
+}
+
+}  // namespace blender::gpu
\ No newline at end of file
-- 
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