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Code Issues 157 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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10
rendering/geometrybank.h
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@@ -145,6 +145,10 @@ public:
// with a single glMultiDrawElementsIndirect (or glMultiDrawArraysIndirect). the chunks have to be of the type of the
// specified one and indexed alike. returns: false if the bank can't, nothing is drawn then
auto draw_indirect_multi( gfx::geometry_handle const &Geometry, std::intptr_t const Offset, std::uint32_t const Count, std::uint32_t const Stride ) -> bool;
// the buffers the bank keeps its geometry in, when they're shared with other banks: chunks of banks of the same group can go
// in one multi draw (draw_indirect_multi()). 0 when the bank has buffers of its own. valid once the chunks were made ready
// for drawing (indirect_source())
auto draw_group() const -> std::uint32_t;
// draws geometry stored in supplied list of chunks
template <typename Iterator_>
auto draw( Iterator_ First, Iterator_ Last, gfx::stream_units const &Units, unsigned int const Streams = basic_streams ) ->std::size_t {
@@ -225,6 +229,8 @@ private:
virtual auto indirect_source_( gfx::geometry_handle const & /*Geometry*/, gfx::indirect_source & /*Source*/ ) -> bool { return false; }
virtual void draw_indirect_( gfx::geometry_handle const & /*Geometry*/, std::intptr_t const /*Offset*/, unsigned int const /*Streams*/ ) {}
virtual auto draw_indirect_multi_( gfx::geometry_handle const & /*Geometry*/, std::intptr_t const /*Offset*/, std::uint32_t const /*Count*/, std::uint32_t const /*Stride*/ ) -> bool { return false; }
// draw_group() subclass details. by default the bank keeps its geometry to itself
virtual auto draw_group_() const -> std::uint32_t { return 0; }
// resource release subclass details
virtual void release_() = 0;
};
@@ -267,6 +273,10 @@ public:
// draws chunks of the bank of the specified one, of its type and indexed alike, with Count commands from Offset in the bound
// draw indirect buffer, Stride bytes apart, in one call. returns: false if the bank can't, nothing is drawn then
auto draw_indirect_multi( gfx::geometry_handle const &Geometry, std::intptr_t const Offset, std::uint32_t const Count, std::uint32_t const Stride ) -> bool;
// what the chunks of a multi draw (draw_indirect_multi()) have to share, besides their type and whether they're indexed: the
// buffers of the bank of the specified chunk. the same for chunks of banks which share their buffers, the bank otherwise.
// valid once the chunk was made ready for drawing (indirect_source())
auto draw_group( gfx::geometry_handle const &Geometry ) const -> std::uint32_t;
template <typename Iterator_>
void draw( Iterator_ First, Iterator_ Last, unsigned int const Streams = basic_streams ) {
while( First != Last ) {