[Feat] (MG_Backend/DirectVulkan): Pipeline factory

2026-09-09 20:58:31 +09:00 · 2026-02-17 10:57:39 +08:00
parent 49b0743422
commit 5f6a0b5969
5 changed files with 195 additions and 107 deletions
@@ -0,0 +1,115 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/PipelineFactory.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "PipelineFactory.h"
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    PipelineFactory::~PipelineFactory() {
+        DestroyAll();
+    }
+
+    PipelineFactory::HashType PipelineFactory::ComputeHash(const PipelineCreatePayload& payload) const {
+        XXHASH_VERIFY(XXH64_reset(m_hashState, m_config.CacheVersion));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.programHash, sizeof(payload.programHash)));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.vertexInputHash, sizeof(payload.vertexInputHash)));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.pipelineLayout, sizeof(payload.pipelineLayout)));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.renderPass, sizeof(payload.renderPass)));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.subpass, sizeof(payload.subpass)));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.topology, sizeof(payload.topology)));
+        return XXH64_digest(m_hashState);
+    }
+
+    VkPipeline PipelineFactory::GetOrCreatePipeline(const PipelineCreatePayload& payload) {
+        const HashType hash = ComputeHash(payload);
+        auto it = m_cache.find(hash);
+        if (it != m_cache.end()) {
+            return it->second;
+        }
+
+        VkPipeline pipeline = CreatePipeline(payload);
+        m_cache.emplace(hash, pipeline);
+        return pipeline;
+    }
+
+    void PipelineFactory::DestroyAll() {
+        for (auto& pair : m_cache) {
+            if (pair.second != VK_NULL_HANDLE) {
+                vkDestroyPipeline(m_device, pair.second, nullptr);
+            }
+        }
+        m_cache.clear();
+    }
+
+    VkPipeline PipelineFactory::CreatePipeline(const PipelineCreatePayload& payload) const {
+        MOBILEGL_ASSERT(payload.stages != nullptr && !payload.stages->empty(), "PipelineFactory: stages are empty");
+        MOBILEGL_ASSERT(payload.vertexInputState != nullptr, "PipelineFactory: vertexInputState is null");
+        MOBILEGL_ASSERT(payload.pipelineLayout != VK_NULL_HANDLE, "PipelineFactory: pipelineLayout is null");
+        MOBILEGL_ASSERT(payload.renderPass != VK_NULL_HANDLE, "PipelineFactory: renderPass is null");
+
+        static constexpr VkDynamicState kDynamicStates[] = {
+            VK_DYNAMIC_STATE_VIEWPORT,
+            VK_DYNAMIC_STATE_SCISSOR
+        };
+
+        VkPipelineDynamicStateCreateInfo dynamicState{};
+        dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
+        dynamicState.dynamicStateCount = static_cast<uint32_t>(std::size(kDynamicStates));
+        dynamicState.pDynamicStates = kDynamicStates;
+
+        VkPipelineInputAssemblyStateCreateInfo ia{VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO};
+        ia.topology = payload.topology;
+
+        VkPipelineViewportStateCreateInfo vpci{VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO};
+        vpci.viewportCount = 1;
+        vpci.scissorCount = 1;
+
+        VkPipelineRasterizationStateCreateInfo raster{VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO};
+        raster.polygonMode = VK_POLYGON_MODE_FILL;
+        raster.cullMode = VK_CULL_MODE_NONE;
+        raster.frontFace = VK_FRONT_FACE_CLOCKWISE;
+        raster.lineWidth = 1.0f;
+
+        VkPipelineMultisampleStateCreateInfo ms{VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO};
+        ms.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
+
+        VkPipelineDepthStencilStateCreateInfo depthStencil{VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO};
+        depthStencil.depthTestEnable = VK_FALSE;
+        depthStencil.depthWriteEnable = VK_FALSE;
+        depthStencil.depthCompareOp = VK_COMPARE_OP_ALWAYS;
+        depthStencil.depthBoundsTestEnable = VK_FALSE;
+        depthStencil.stencilTestEnable = VK_FALSE;
+
+        VkPipelineColorBlendAttachmentState colorAttach{};
+        colorAttach.colorWriteMask =
+            VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
+        colorAttach.blendEnable = VK_FALSE;
+        VkPipelineColorBlendStateCreateInfo blend{VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO};
+        blend.attachmentCount = 1;
+        blend.pAttachments = &colorAttach;
+
+        VkGraphicsPipelineCreateInfo gpi{VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO};
+        gpi.stageCount = static_cast<Uint32>(payload.stages->size());
+        gpi.pStages = payload.stages->data();
+        gpi.pVertexInputState = payload.vertexInputState;
+        gpi.pInputAssemblyState = &ia;
+        gpi.pViewportState = &vpci;
+        gpi.pRasterizationState = &raster;
+        gpi.pMultisampleState = &ms;
+        gpi.pDepthStencilState = &depthStencil;
+        gpi.pColorBlendState = &blend;
+        gpi.pDynamicState = &dynamicState;
+        gpi.layout = payload.pipelineLayout;
+        gpi.renderPass = payload.renderPass;
+        gpi.subpass = payload.subpass;
+
+        VkPipeline pipeline = VK_NULL_HANDLE;
+        VK_VERIFY(vkCreateGraphicsPipelines(m_device, VK_NULL_HANDLE, 1, &gpi, nullptr, &pipeline),
+                  "vkCreateGraphicsPipelines");
+        return pipeline;
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkan