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shader: separate indirect buffer candidates from tracked root limits

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Co-authored-by: fxpw <fxpw@outlook.com>
This commit is contained in:
nmzik
2026-10-14 21:19:38 +02:00
parent 1039c54f5d
commit 8b81f665a2
8 changed files with 137 additions and 13 deletions
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src/graphics/host_gpu/renderer/pipeline/shaders.cpp
+23 -1
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@@ -19,6 +19,7 @@
#include "graphics/shader/shader.h"
#include <algorithm>
#include <array>
#include <bit>
#include <limits>
#include <span>
@@ -192,9 +193,30 @@ static void AddLayoutBindings(std::vector<vk::DescriptorSetLayoutBinding>& descr
static void CreateDescriptorLayout(GraphicContext& graphics, PipelineCache::Pipeline& pipeline,
std::span<const vk::DescriptorSetLayoutBinding> bindings) {
uint32_t descriptor_count = 0;
const auto& limits = graphics.GetPhysicalDeviceProperties().limits;
uint64_t descriptor_count = 0;
uint64_t storage_buffers = 0;
std::array<uint64_t, 32> stage_buffers {}, stage_resources {};
for (const auto& binding: bindings) {
descriptor_count += binding.descriptorCount;
const bool storage = binding.descriptorType == vk::DescriptorType::eStorageBuffer;
if (storage) storage_buffers += binding.descriptorCount;
for (auto stages = static_cast<uint32_t>(binding.stageFlags); stages != 0; stages &= stages - 1u) {
const auto stage = std::countr_zero(stages);
if (storage) stage_buffers[stage] += binding.descriptorCount;
if (binding.descriptorType != vk::DescriptorType::eSampler)
stage_resources[stage] += binding.descriptorCount;
if (stage_buffers[stage] > limits.maxPerStageDescriptorStorageBuffers ||
stage_resources[stage] > limits.maxPerStageResources) {
EXIT("native descriptor stage %u exceeds device limits: buffers=%" PRIu64
"/%u resources=%" PRIu64 "/%u\n", stage, stage_buffers[stage],
limits.maxPerStageDescriptorStorageBuffers, stage_resources[stage], limits.maxPerStageResources);
}
}
}
if (storage_buffers > limits.maxDescriptorSetStorageBuffers) {
EXIT("native storage-buffer descriptors exceed device limit: %" PRIu64 "/%u\n",
storage_buffers, limits.maxDescriptorSetStorageBuffers);
}
pipeline.uses_push_descriptors = descriptor_count <= graphics.max_push_descriptors;