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[Refactor] (CMakeLists.txt, MG_Backend/DirectVulkan): split VulkanRenderer.cpp and its fragments by area

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- code moves unchanged; helpers several files use are in VulkanRendererInternal.h
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swung0x48
2026-10-16 04:28:47 -04:00
parent b0e229f2a3
commit 98c8e8833c
28 changed files with 9460 additions and 9348 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/WireMultisampleResolve.cpp
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// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/WireMultisampleResolve.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 "VulkanRendererInternal.h"
namespace MobileGL::MG_Backend::DirectVulkan {
// The native multisample depth/stencil resolve owns no frontend object and never invokes the
// GL shader compiler. It is WireDepthMipmap.cpp's pass with the box filter taken out and a
// sample index put in.
//
// WHY THIS FILE EXISTS. vkCmdResolveImage is COLOUR ONLY. The one way Vulkan resolves a depth
// or stencil aspect without a shader is a render pass with a depth/stencil resolve attachment,
// which needs VK_KHR_create_renderpass2 and VK_KHR_depth_stencil_resolve - and until this
// package a device without either killed the session at
// `Magma:multisample-depth-resolve-capability` the first time an application resolved a
// multisample depth buffer, which is what glBlitFramebuffer(GL_DEPTH_BUFFER_BIT) from a
// multisampled read framebuffer IS. CONTRACT-P7 §3.2's `multisample-blit-aspect` row names both
// arms; this is the second one.
//
// SAMPLE ZERO IN BOTH ARMS. The extension arm asks for VK_RESOLVE_MODE_SAMPLE_ZERO_BIT, so the
// shader arm fetches sample 0 - not an average. Two arms that answer differently on two devices
// would make "the wire arm is observably the monolith's" untestable, and GL 4.6 core 18.3.1
// requires a SELECTED sample for stencil anyway.
// The pass's modules, layouts, render passes and pipeline, and the draw it records, are
// WireDepthResolveProbe.cpp's (g5-msprobe): the multisample depth/stencil resolve probe runs
// this exact arm as its CONTROL, so it is defined once for both.
struct VulkanRenderer::WireMultisampleResolveResources {
struct Target {
VkFormat format = VK_FORMAT_UNDEFINED;
VkImageAspectFlags aspect = 0; // the ONE aspect this pipeline writes
VkRenderPass renderPass = VK_NULL_HANDLE;
VkPipeline pipeline = VK_NULL_HANDLE;
};
WireShaderResolveKit kit;
Vector<Target> targets;
};
void VulkanRenderer::DestroyWireMultisampleResolveResources() {
if (!m_wireMultisampleResolveResources) return;
// Shutdown calls this after vkDeviceWaitIdle and after all per-submit descriptor
// pools/framebuffers/views have been collected.
auto& cache = *m_wireMultisampleResolveResources;
for (const auto& target : cache.targets) {
vkDestroyPipeline(m_device, target.pipeline, nullptr);
vkDestroyRenderPass(m_device, target.renderPass, nullptr);
}
DestroyWireShaderResolveKit(m_device, cache.kit);
delete m_wireMultisampleResolveResources;
m_wireMultisampleResolveResources = nullptr;
}
// ONE ASPECT, source -> resolved, both 2D images of the same format and extent, the source
// multisampled and the destination not. Returns false for every shape it cannot express,
// which the caller turns into a decline; it never ends the session.
Bool VulkanRenderer::ResolveWireDepthStencilWithShader(WireImage source, WireImage resolved,
VkImageAspectFlags aspect, GLint sx0, GLint sy0, Uint32 width, Uint32 height) {
if (!source.image || !resolved.image || !width || !height) return false;
if (aspect != VK_IMAGE_ASPECT_DEPTH_BIT && aspect != VK_IMAGE_ASPECT_STENCIL_BIT) return false;
// A fragment shader cannot write the stencil aspect at all without
// VK_EXT_shader_stencil_export. §3.2: decline stencil-only rather than produce a level
// whose stencil is whatever the DONT_CARE left there.
if (aspect == VK_IMAGE_ASPECT_STENCIL_BIT && !m_wireShaderStencilExport) return false;
if (source.samples == VK_SAMPLE_COUNT_1_BIT) return false;
if (source.format != resolved.format) return false;
// SAMPLED is asked for by every attachment VkTextureManager creates; a device that
// declined it would make the descriptor write below undefined, not failed.
if (!(source.usageFlags & VK_IMAGE_USAGE_SAMPLED_BIT)) return false;
VkFormatProperties properties{};
vkGetPhysicalDeviceFormatProperties(m_physicalDevice.handle, source.format, &properties);
const VkFormatFeatureFlags required = VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT |
VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT;
if ((properties.optimalTilingFeatures & required) != required) return false;
const VkImageAspectFlags formatAspects = WireDepthStencilFormatAspects(source.format);
if (!(formatAspects & aspect)) return false;
if (!m_wireMultisampleResolveResources) {
m_wireMultisampleResolveResources = new WireMultisampleResolveResources;
VK_VERIFY(CreateWireShaderResolveKit(m_device, m_wireShaderStencilExport,
m_wireMultisampleResolveResources->kit));
}
auto& cache = *m_wireMultisampleResolveResources;
const VkShaderModule fragment = aspect == VK_IMAGE_ASPECT_STENCIL_BIT ? cache.kit.stencilFragment
: cache.kit.depthFragment;
if (fragment == VK_NULL_HANDLE) return false;
WireMultisampleResolveResources::Target* target = nullptr;
for (auto& entry : cache.targets)
if (entry.format == resolved.format && entry.aspect == aspect) { target = &entry; break; }
if (!target) {
cache.targets.emplace_back();
target = &cache.targets.back();
target->format = resolved.format;
target->aspect = aspect;
VK_VERIFY(CreateWireShaderResolveRenderPass(m_device, resolved.format, &target->renderPass));
if (CreateWireShaderResolvePipeline(m_device, cache.kit, target->renderPass, aspect,
&target->pipeline) != VK_SUCCESS) {
vkDestroyRenderPass(m_device, target->renderPass, nullptr);
cache.targets.pop_back();
return false;
}
}
m_textureManager->FlushPendingUploads();
TransitionWireImage(source, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
TransitionWireImage(resolved, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
// ONE ASPECT on the sampled view: a depth/stencil image can only be SAMPLED through a
// view that names exactly one of its aspects, which is also what makes the stencil half
// a usampler2DMS and the depth half a sampler2DMS.
const VkImageViewCreateInfo sourceViewInfo =
WireDepthStencilViewInfo(source.image, source.format, aspect, source.level, source.layer);
VkImageView sourceView = VK_NULL_HANDLE;
VK_VERIFY(vkCreateImageView(m_device, &sourceViewInfo, nullptr, &sourceView));
// BOTH aspects on the attachment view: a depth/stencil ATTACHMENT names every aspect
// its format has, whichever one the pipeline writes.
const VkImageViewCreateInfo targetViewInfo =
WireDepthStencilViewInfo(resolved.image, resolved.format, formatAspects, 0, 0);
VkImageView targetView = VK_NULL_HANDLE;
VK_VERIFY(vkCreateImageView(m_device, &targetViewInfo, nullptr, &targetView));
VkFramebufferCreateInfo framebufferInfo{VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO};
framebufferInfo.renderPass = target->renderPass;
framebufferInfo.attachmentCount = 1;
framebufferInfo.pAttachments = &targetView;
framebufferInfo.width = resolved.extent.width;
framebufferInfo.height = resolved.extent.height;
framebufferInfo.layers = 1;
VkFramebuffer framebuffer = VK_NULL_HANDLE;
VK_VERIFY(vkCreateFramebuffer(m_device, &framebufferInfo, nullptr, &framebuffer));
// Each in-flight pass owns its descriptor set, for the colour blit's reason: updating a
// cached set would rewrite the source view of an older queued pass.
VkDescriptorPool descriptorPool = VK_NULL_HANDLE;
VkDescriptorSet descriptorSet = VK_NULL_HANDLE;
const VkDescriptorPoolSize poolSize{VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1};
VkDescriptorPoolCreateInfo pool{VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO};
pool.maxSets = 1;
pool.poolSizeCount = 1;
pool.pPoolSizes = &poolSize;
VK_VERIFY(vkCreateDescriptorPool(m_device, &pool, nullptr, &descriptorPool));
VkDescriptorSetAllocateInfo alloc{VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO};
alloc.descriptorPool = descriptorPool;
alloc.descriptorSetCount = 1;
alloc.pSetLayouts = &cache.kit.descriptorLayout;
VK_VERIFY(vkAllocateDescriptorSets(m_device, &alloc, &descriptorSet));
const VkDescriptorImageInfo sampled{cache.kit.nearest, sourceView,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL};
VkWriteDescriptorSet write{VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET};
write.dstSet = descriptorSet;
write.dstBinding = 0;
write.descriptorCount = 1;
write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
write.pImageInfo = &sampled;
vkUpdateDescriptorSets(m_device, 1, &write, 0, nullptr);
auto& frame = m_frameContext.GetCurrent();
RecordWireShaderResolveDraw(frame.commandBuffer, cache.kit, target->renderPass, target->pipeline, framebuffer,
descriptorSet, resolved.extent, {{sx0, sy0}, {width, height}});
ResetDynamicStateShadow();
InvalidatePipelineMemo();
// This native pass binds its own set/layout without going through the application's
// descriptor binder. Its next fast path must rebind.
if (m_uniformManager) m_uniformManager->OnCommandBufferBoundary();
WireRetiredObjects retired{};
retired.framebuffers.push_back(framebuffer);
retired.imageViews = {sourceView, targetView};
retired.descriptorPools.push_back(descriptorPool);
RetireWireObjects(Move(retired));
return true;
}
} // namespace MobileGL::MG_Backend::DirectVulkan