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Code Issues 156 Wiki Activity

perf(gl46): the geometry of the banks without user data in a few large buffers shared by them, so the multi draws take the chunks of many models at once (gfx.geometry.shared)

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Hirek
2026-10-24 01:49:02 +02:00
parent e53c44ed4d
commit 6bcdb7dd05
8 changed files with 306 additions and 56 deletions
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18
rendering/geometrybank.cpp
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@@ -381,6 +381,13 @@ geometry_bank::draw_indirect_multi( gfx::geometry_handle const &Geometry, std::i
return draw_indirect_multi_( Geometry, Offset, Count, Stride );
}
// the buffers the bank keeps its geometry in, when they're shared with other banks, 0 otherwise
std::uint32_t
geometry_bank::draw_group() const {
// template method implementation
return draw_group_();
}
// frees subclass-specific resources associated with the bank, typically called when the bank wasn't in use for a period of time
void
geometry_bank::release() {
@@ -588,6 +595,17 @@ geometrybank_manager::draw_indirect_multi( gfx::geometry_handle const &Geometry,
return bankrecord.first->draw_indirect_multi( Geometry, Offset, Count, Stride );
}
// what the chunks of a multi draw have to share: the shared buffers of the bank of the chunk, or the bank itself. the groups of
// shared buffers have the highest bit set, apart from the numbers of the banks
std::uint32_t
geometrybank_manager::draw_group( gfx::geometry_handle const &Geometry ) const {
if( Geometry == null_handle ) { return 0; }
auto const group { bank( Geometry ).first->draw_group() };
return ( group != 0 ? ( group | 0x80000000u ) : Geometry.bank );
}
// provides direct access to index data of specfied chunk
gfx::index_array const &
geometrybank_manager::indices( gfx::geometry_handle const &Geometry ) const {