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2025-09-04 10:54:47 +08:00
commit 6bc8f61b18
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+/* Copyright (c) 2019-2025, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "render_pipeline.h"
+
+#include "scene_graph/components/camera.h"
+#include "scene_graph/components/image.h"
+#include "scene_graph/components/material.h"
+#include "scene_graph/components/mesh.h"
+#include "scene_graph/components/pbr_material.h"
+#include "scene_graph/components/sampler.h"
+#include "scene_graph/components/sub_mesh.h"
+#include "scene_graph/components/texture.h"
+#include "scene_graph/node.h"
+
+namespace vkb
+{
+RenderPipeline::RenderPipeline(std::vector<std::unique_ptr<vkb::rendering::SubpassC>> &&subpasses_) :
+    subpasses{std::move(subpasses_)}
+{
+	prepare();
+
+	// Default load/store for swapchain
+	load_store[0].load_op  = VK_ATTACHMENT_LOAD_OP_CLEAR;
+	load_store[0].store_op = VK_ATTACHMENT_STORE_OP_STORE;
+
+	// Default load/store for depth attachment
+	load_store[1].load_op  = VK_ATTACHMENT_LOAD_OP_CLEAR;
+	load_store[1].store_op = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+
+	// Default clear value
+	clear_value[0].color        = {0.0f, 0.0f, 0.0f, 1.0f};
+	clear_value[1].depthStencil = {0.0f, ~0U};
+}
+
+void RenderPipeline::prepare()
+{
+	for (auto &subpass : subpasses)
+	{
+		subpass->prepare();
+	}
+}
+
+void RenderPipeline::add_subpass(std::unique_ptr<vkb::rendering::SubpassC> &&subpass)
+{
+	subpass->prepare();
+	subpasses.emplace_back(std::move(subpass));
+}
+
+std::vector<std::unique_ptr<vkb::rendering::SubpassC>> &RenderPipeline::get_subpasses()
+{
+	return subpasses;
+}
+
+const std::vector<LoadStoreInfo> &RenderPipeline::get_load_store() const
+{
+	return load_store;
+}
+
+void RenderPipeline::set_load_store(const std::vector<LoadStoreInfo> &ls)
+{
+	load_store = ls;
+}
+
+const std::vector<VkClearValue> &RenderPipeline::get_clear_value() const
+{
+	return clear_value;
+}
+
+void RenderPipeline::set_clear_value(const std::vector<VkClearValue> &cv)
+{
+	clear_value = cv;
+}
+
+void RenderPipeline::draw(vkb::core::CommandBufferC &command_buffer, RenderTarget &render_target, VkSubpassContents contents)
+{
+	assert(!subpasses.empty() && "Render pipeline should contain at least one sub-pass");
+
+	// Pad clear values if they're less than render target attachments
+	while (clear_value.size() < render_target.get_attachments().size())
+	{
+		clear_value.push_back({0.0f, 0.0f, 0.0f, 1.0f});
+	}
+
+	for (size_t i = 0; i < subpasses.size(); ++i)
+	{
+		active_subpass_index = i;
+
+		auto &subpass = subpasses[i];
+
+		subpass->update_render_target_attachments(render_target);
+
+		if (i == 0)
+		{
+			command_buffer.begin_render_pass(render_target, load_store, clear_value, subpasses, contents);
+		}
+		else
+		{
+			command_buffer.next_subpass();
+		}
+
+		if (subpass->get_debug_name().empty())
+		{
+			subpass->set_debug_name(fmt::format("RP subpass #{}", i));
+		}
+		ScopedDebugLabel subpass_debug_label{command_buffer, subpass->get_debug_name().c_str()};
+
+		subpass->draw(command_buffer);
+	}
+
+	active_subpass_index = 0;
+}
+
+std::unique_ptr<vkb::rendering::SubpassC> &RenderPipeline::get_active_subpass()
+{
+	return subpasses[active_subpass_index];
+}
+}        // namespace vkb