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shader: run merged geometry stages as mesh shaders

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Co-authored-by: Brandon Strong <brandostrong@gmail.com>
Co-authored-by: fxpw <fxpw@outlook.com>
Co-authored-by: shadowbeat070 <70843316+shadowbeat070@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-05 08:32:23 +04:00
parent 246212789f
commit 3213934d42
39 changed files with 1403 additions and 858 deletions
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src/graphics/host_gpu/renderer/pipeline/shaders.cpp
+11 -9
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@@ -427,8 +427,13 @@ void CreatePipelineInternal(
const PipelineStaticParameters& static_params, vk::PipelineCache driver_cache) {
const bool ps_active = ps_input_info != nullptr;
EXIT_IF(vertex_module == nullptr || (ps_active && pixel_module == nullptr));
EXIT_IF(!vs_input_info.stage);
const bool mesh = vs_input_info.stage.program->stage == ShaderType::Mesh;
EXIT_NOT_IMPLEMENTED(mesh && !graphics.mesh_shader_enabled);
const auto vertex_stage =
mesh ? vk::ShaderStageFlagBits::eMeshEXT : vk::ShaderStageFlagBits::eVertex;
const bool rect_list = static_params.topology == vk::PrimitiveTopology::ePatchList;
const bool rect_list = !mesh && static_params.topology == vk::PrimitiveTopology::ePatchList;
vk::ShaderModule tess_control_shader_module = nullptr;
vk::ShaderModule tess_eval_shader_module = nullptr;
@@ -468,7 +473,7 @@ void CreatePipelineInternal(
vert_shader_stage_info.sType = vk::StructureType::ePipelineShaderStageCreateInfo;
vert_shader_stage_info.pNext = nullptr;
vert_shader_stage_info.flags = {};
vert_shader_stage_info.stage = vk::ShaderStageFlagBits::eVertex;
vert_shader_stage_info.stage = vertex_stage;
vert_shader_stage_info.module = vertex_module;
vert_shader_stage_info.pName = "main";
vert_shader_stage_info.pSpecializationInfo = nullptr;
@@ -780,18 +785,15 @@ void CreatePipelineInternal(
color_blending.attachmentCount = static_params.color_count;
color_blending.pAttachments = color_blend_attachment;
EXIT_IF(!vs_input_info.stage);
std::vector<vk::DescriptorSetLayoutBinding> descriptor_bindings;
AddLayoutBindings(descriptor_bindings, *vs_input_info.stage.program,
vk::ShaderStageFlagBits::eVertex);
AddLayoutBindings(descriptor_bindings, *vs_input_info.stage.program, vertex_stage);
if (ps_active) {
EXIT_IF(!ps_input_info->stage);
AddLayoutBindings(descriptor_bindings, *ps_input_info->stage.program,
vk::ShaderStageFlagBits::eFragment);
}
CreateDescriptorLayout(graphics, pipeline, descriptor_bindings);
constexpr auto GraphicsStages =
vk::ShaderStageFlagBits::eVertex | vk::ShaderStageFlagBits::eFragment;
const auto GraphicsStages = vertex_stage | vk::ShaderStageFlagBits::eFragment;
const vk::PushConstantRange push_constants {GraphicsStages, 0,
ShaderRecompiler::IR::NativePushConstantSize};
@@ -888,8 +890,8 @@ void CreatePipelineInternal(
pipeline_info.flags = {};
pipeline_info.stageCount = shader_stage_count;
pipeline_info.pStages = shader_stages;
pipeline_info.pVertexInputState = &vertex_input_info;
pipeline_info.pInputAssemblyState = &input_assembly;
pipeline_info.pVertexInputState = mesh ? nullptr : &vertex_input_info;
pipeline_info.pInputAssemblyState = mesh ? nullptr : &input_assembly;
vk::PipelineTessellationStateCreateInfo tessellation_state {};
tessellation_state.sType = vk::StructureType::ePipelineTessellationStateCreateInfo;
tessellation_state.patchControlPoints = 3;