renderer: minor optimizations

This commit is contained in:
nmzik
2026-08-05 19:08:18 +02:00
parent b2963aa6e0
commit 869329ee68
2 changed files with 85 additions and 49 deletions
+78 -41
View File
@@ -684,11 +684,24 @@ struct VertexBufferRange {
[[nodiscard]] uint64_t RequestedSize() const { return requested_end - base_address; }
};
static std::vector<BufferBinding> AcquireVertexBuffers(RenderCommandBuffer& buffer,
const ShaderVertexInputInfo& vs_input_info) {
struct PreparedVertexBuffers {
static constexpr uint32_t MaxBuffers = ShaderVertexInputInfo::RES_MAX;
std::array<vk::Buffer, MaxBuffers> buffers {};
std::array<vk::DeviceSize, MaxBuffers> offsets {};
std::array<std::shared_ptr<void>, MaxBuffers> owners {};
uint32_t count = 0;
uint32_t owner_count = 0;
};
static PreparedVertexBuffers AcquireVertexBuffers(RenderCommandBuffer& buffer,
const ShaderVertexInputInfo& vs_input_info) {
EXIT_IF(vs_input_info.buffers_num < 0 ||
vs_input_info.buffers_num > ShaderVertexInputInfo::RES_MAX);
// Collect the non-empty guest vertex ranges.
std::vector<VertexBufferRange> ranges;
ranges.reserve(vs_input_info.buffers_num);
std::array<VertexBufferRange, ShaderVertexInputInfo::RES_MAX> ranges {};
uint32_t range_count = 0;
for (int i = 0; i < vs_input_info.buffers_num; i++) {
const auto& vertex = vs_input_info.buffers[i];
const auto size = VertexBufferDescriptorSize(vertex);
@@ -699,27 +712,31 @@ static std::vector<BufferBinding> AcquireVertexBuffers(RenderCommandBuffer&
EXIT("invalid vertex buffer range: addr=0x%016" PRIx64 " size=0x%016" PRIx64 "\n",
vertex.addr, size);
}
ranges.push_back({vertex.addr, vertex.addr + size});
ranges[range_count++] = {vertex.addr, vertex.addr + size};
}
std::ranges::sort(ranges, [](const VertexBufferRange& left, const VertexBufferRange& right) {
return left.base_address < right.base_address;
});
std::sort(ranges.begin(), ranges.begin() + range_count,
[](const VertexBufferRange& left, const VertexBufferRange& right) {
return left.base_address < right.base_address;
});
// Merge overlapping or touching ranges before acquiring host buffers.
std::vector<VertexBufferRange> merged_ranges;
merged_ranges.reserve(ranges.size());
for (const auto& range: ranges) {
if (!merged_ranges.empty() && merged_ranges.back().requested_end >= range.base_address) {
merged_ranges.back().requested_end =
std::max(merged_ranges.back().requested_end, range.requested_end);
std::array<VertexBufferRange, ShaderVertexInputInfo::RES_MAX> merged_ranges {};
uint32_t merged_count = 0;
for (uint32_t i = 0; i < range_count; i++) {
const auto& range = ranges[i];
if (merged_count != 0 &&
merged_ranges[merged_count - 1].requested_end >= range.base_address) {
merged_ranges[merged_count - 1].requested_end =
std::max(merged_ranges[merged_count - 1].requested_end, range.requested_end);
continue;
}
merged_ranges.push_back(range);
merged_ranges[merged_count++] = {range.base_address, range.requested_end};
}
auto& cache = buffer.GetContext().GetBufferCache();
for (auto& range: merged_ranges) {
for (uint32_t i = 0; i < merged_count; i++) {
auto& range = merged_ranges[i];
// PPSA20298
const auto size =
Libs::LibKernel::Memory::ClampRangeSize(range.base_address, range.RequestedSize());
@@ -728,30 +745,47 @@ static std::vector<BufferBinding> AcquireVertexBuffers(RenderCommandBuffer&
}
// Rebuild slot bindings, offsetting non-empty slots into their acquired merged range.
std::vector<BufferBinding> bindings;
bindings.reserve(vs_input_info.buffers_num);
PreparedVertexBuffers prepared;
prepared.count = static_cast<uint32_t>(vs_input_info.buffers_num);
std::shared_ptr<Buffer> null_owner;
vk::Buffer null_buffer = nullptr;
for (int i = 0; i < vs_input_info.buffers_num; i++) {
const auto& vertex = vs_input_info.buffers[i];
const auto size = VertexBufferDescriptorSize(vertex);
if (size == 0) {
auto owner = cache.ObtainNullBuffer();
bindings.push_back({owner, owner->Handle(), 0});
if (null_owner == nullptr) {
null_owner = cache.ObtainNullBuffer();
null_buffer = null_owner->Handle();
}
prepared.buffers[i] = null_buffer;
prepared.offsets[i] = 0;
continue;
}
const auto range = std::ranges::find_if(merged_ranges, [&](const VertexBufferRange& value) {
return vertex.addr >= value.base_address && vertex.addr < value.acquired_end;
});
if (range == merged_ranges.end()) {
const auto range = std::find_if(merged_ranges.begin(), merged_ranges.begin() + merged_count,
[&](const VertexBufferRange& value) {
return vertex.addr >= value.base_address &&
vertex.addr < value.acquired_end;
});
if (range == merged_ranges.begin() + merged_count) {
EXIT("vertex buffer address is outside the acquired range: addr=0x%016" PRIx64 "\n",
vertex.addr);
}
auto binding = range->binding;
binding.offset += vertex.addr - range->base_address;
bindings.push_back(std::move(binding));
prepared.buffers[i] = range->binding.buffer;
prepared.offsets[i] = range->binding.offset + vertex.addr - range->base_address;
}
return bindings;
if (null_owner != nullptr) {
prepared.owners[prepared.owner_count++] = std::move(null_owner);
}
for (uint32_t i = 0; i < merged_count; i++) {
if (merged_ranges[i].binding.owner != nullptr) {
EXIT_IF(prepared.owner_count >= PreparedVertexBuffers::MaxBuffers);
prepared.owners[prepared.owner_count++] = std::move(merged_ranges[i].binding.owner);
}
}
return prepared;
}
static void SetDrawDebugPhase(RenderCommandBuffer& buffer, uint64_t submit_id,
@@ -883,10 +917,9 @@ static void RefreshShaders(RenderCommandBuffer& buffer, const DrawCallInfo& draw
}
}
static std::vector<BufferBinding> PrepareVertexBuffers(uint64_t submit_id,
RenderCommandBuffer& buffer,
const DrawCallInfo& draw,
const ShaderVertexInputInfo& vs_input_info) {
static PreparedVertexBuffers PrepareVertexBuffers(uint64_t submit_id, RenderCommandBuffer& buffer,
const DrawCallInfo& draw,
const ShaderVertexInputInfo& vs_input_info) {
EXIT_IF(draw.name == nullptr);
(void)submit_id;
@@ -920,24 +953,28 @@ static PreparedIndexBuffer PrepareIndexBuffer(RenderCommandBuffer& buffe
}
static void CommitVertexBuffers(RenderCommandBuffer& buffer, vk::CommandBuffer vk_buffer,
std::vector<BufferBinding>& bindings) {
for (uint32_t slot = 0; slot < bindings.size(); slot++) {
auto& binding = bindings[slot];
if (binding.owner != nullptr) {
buffer.RetainResourceUntilFence(binding.owner);
PreparedVertexBuffers& prepared) {
for (uint32_t i = 0; i < prepared.owner_count; i++) {
if (prepared.owners[i] != nullptr) {
buffer.RetainResourceUntilFence(std::move(prepared.owners[i]));
}
EXIT_IF(binding.buffer == nullptr);
vk_buffer.bindVertexBuffers(slot, 1, &binding.buffer, &binding.offset);
}
for (uint32_t i = 0; i < prepared.count; i++) {
EXIT_IF(prepared.buffers[i] == nullptr);
}
if (prepared.count != 0) {
vk_buffer.bindVertexBuffers(0, prepared.count, prepared.buffers.data(),
prepared.offsets.data());
}
}
static void CommitIndexBuffer(RenderCommandBuffer& buffer, vk::CommandBuffer vk_buffer,
const PreparedIndexBuffer& prepared) {
PreparedIndexBuffer& prepared) {
if (prepared.size == 0) {
return;
}
if (prepared.owner != nullptr) {
buffer.RetainResourceUntilFence(prepared.owner);
buffer.RetainResourceUntilFence(std::move(prepared.owner));
}
EXIT_IF(prepared.buffer == nullptr);
vk_buffer.bindIndexBuffer(prepared.buffer, prepared.offset, prepared.type);