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rsx: Avoid using push_back/emplace_back on empty STL containers

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- Reckless management of STL containers causes significant slowdown
- Also reorders vertex compare steps to fail quickly on simpler checks
This commit is contained in:
kd-11 2017-06-27 20:46:36 +03:00
parent 9cb58a47cd
commit 459a7ba5a2
2 changed files with 9 additions and 3 deletions
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5
rpcs3/Emu/RSX/RSXThread.cpp
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@ -273,7 +273,7 @@ namespace rsx
void thread::begin()
{
rsx::method_registers.current_draw_clause.inline_vertex_array.clear();
rsx::method_registers.current_draw_clause.inline_vertex_array.resize(0);
in_begin_end = true;
}
@ -865,6 +865,7 @@ namespace rsx
RSXVertexProgram result = {};
const u32 transform_program_start = rsx::method_registers.transform_program_start();
result.data.reserve((512 - transform_program_start) * 4);
result.rsx_vertex_inputs.reserve(rsx::limits::vertex_count);
for (int i = transform_program_start; i < 512; ++i)
{
@ -881,7 +882,7 @@ namespace rsx
const u32 input_mask = rsx::method_registers.vertex_attrib_input_mask();
const u32 modulo_mask = rsx::method_registers.frequency_divider_operation_mask();
result.rsx_vertex_inputs.clear();
for (u8 index = 0; index < rsx::limits::vertex_count; ++index)
{
bool enabled = !!(input_mask & (1 << index));