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2025-09-04 10:54:47 +08:00
commit 6bc8f61b18
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+/* Copyright (c) 2020-2025, 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.
+ */
+
+#pragma once
+
+#include "vulkan_sample.h"
+#include <memory>
+
+/**
+ * @brief Using 16-bit arithmetic extension to improve arithmetic throughput
+ */
+class KHR16BitArithmeticSample : public vkb::VulkanSampleC
+{
+  public:
+	KHR16BitArithmeticSample();
+
+	virtual ~KHR16BitArithmeticSample() = default;
+
+	virtual bool prepare(const vkb::ApplicationOptions &options) override;
+
+	virtual void request_gpu_features(vkb::PhysicalDevice &gpu) override;
+
+	virtual void draw_renderpass(vkb::core::CommandBufferC &cmd, vkb::RenderTarget &render_target) override;
+
+  private:
+	virtual void draw_gui() override;
+
+	bool khr_16bit_arith_enabled{false};
+
+	bool supported_extensions{false};
+	bool supports_push_constant16{false};
+
+	std::vector<vkb::LoadStoreInfo>                        load_store_infos;
+	std::vector<std::unique_ptr<vkb::rendering::SubpassC>> subpasses;
+	std::vector<VkClearValue>                              clear_values;
+
+	std::unique_ptr<vkb::core::BufferC>   blob_buffer;
+	std::unique_ptr<vkb::core::Image>     image;
+	std::unique_ptr<vkb::core::ImageView> image_view;
+	std::unique_ptr<vkb::core::Sampler>   sampler;
+	vkb::PipelineLayout                  *compute_layout{nullptr};
+	vkb::PipelineLayout                  *compute_layout_fp16{nullptr};
+
+	unsigned frame_count{0};
+
+	struct VisualizationSubpass : vkb::rendering::SubpassC
+	{
+		VisualizationSubpass(vkb::RenderContext &context, vkb::ShaderSource &&vertex_source, vkb::ShaderSource &&fragment_source);
+		virtual void prepare() override;
+		virtual void draw(vkb::core::CommandBufferC &command_buffer) override;
+
+		vkb::PipelineLayout        *layout{nullptr};
+		const vkb::core::ImageView *view{nullptr};
+		const vkb::core::Sampler   *sampler{nullptr};
+	};
+};
+
+std::unique_ptr<vkb::VulkanSampleC> create_16bit_arithmetic();