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squash reallocs in command buffers by using large prealloced buffer, directly use virtual memory with it so os allocs on demand

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mark raw clock functions as noinline, the way msvc was inlining them and ordering the branches meant that rdtsc would often be speculatively executed
add alternative clock impl for win, instead of using queryperformancecounter we grab systemtime from kusershared. it does not have the same precision as queryperformancecounter, we only have 100 nanosecond precision, but we round to milliseconds so it never made sense to use the performance counter in the first place
stubbed out the "guest clock mutex"... (the entirety of clock.cc needs a rewrite)
added some helpers for minf/maxf without the nan handling behavior
This commit is contained in:
chss95cs@gmail.com
2022-08-14 13:42:08 -07:00
parent c9b2d10e17
commit 7cc364dcb8
11 changed files with 263 additions and 38 deletions
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23
src/xenia/gpu/d3d12/deferred_command_list.cc
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@@ -31,8 +31,8 @@ void DeferredCommandList::Execute(ID3D12GraphicsCommandList* command_list,
#if XE_UI_D3D12_FINE_GRAINED_DRAW_SCOPES
SCOPE_profile_cpu_f("gpu");
#endif // XE_UI_D3D12_FINE_GRAINED_DRAW_SCOPES
const uintmax_t* stream = command_stream_.data();
size_t stream_remaining = command_stream_.size();
const uintmax_t* stream = (const uintmax_t*)command_stream_.data();
size_t stream_remaining = command_stream_.size() / sizeof(uintmax_t);
ID3D12PipelineState* current_pipeline_state = nullptr;
while (stream_remaining != 0) {
const CommandHeader& header =
@@ -266,8 +266,12 @@ void DeferredCommandList::Execute(ID3D12GraphicsCommandList* command_list,
void* DeferredCommandList::WriteCommand(Command command,
size_t arguments_size_bytes) {
size_t arguments_size_elements =
(arguments_size_bytes + sizeof(uintmax_t) - 1) / sizeof(uintmax_t);
round_up(arguments_size_bytes, sizeof(uintmax_t), false);
//(arguments_size_bytes + sizeof(uintmax_t) - 1) / sizeof(uintmax_t);
#if 0
size_t offset = command_stream_.size();
command_stream_.resize(offset + kCommandHeaderSizeElements +
arguments_size_elements);
@@ -276,6 +280,19 @@ void* DeferredCommandList::WriteCommand(Command command,
header.command = command;
header.arguments_size_elements = uint32_t(arguments_size_elements);
return command_stream_.data() + (offset + kCommandHeaderSizeElements);
#else
size_t offset = command_stream_.size();
constexpr size_t kCommandHeaderSizeBytes =
kCommandHeaderSizeElements * sizeof(uintmax_t);
command_stream_.resize(offset + kCommandHeaderSizeBytes +
arguments_size_elements);
CommandHeader& header =
*reinterpret_cast<CommandHeader*>(command_stream_.data() + offset);
header.command = command;
header.arguments_size_elements = uint32_t(arguments_size_elements) / sizeof(uintmax_t);
return command_stream_.data() + (offset + kCommandHeaderSizeBytes);
#endif
}
} // namespace d3d12