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[maxwell_3d] append inline index draw streams in bulk (#4083)

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Inline index draws arrive as a batch but were processed one word at a time, so each index ran through the full per-method path and got appended a byte at a time.
Handle the whole batch in one pass instead, updating state once and appending all the indices together. Replay shadow control still goes word by word since it has to reload each one.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4083
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
This commit is contained in:
simply0001
2026-06-27 02:52:59 +02:00
committed by crueter
parent 09b6b3b71e
commit 0d6a2158f0
3 changed files with 60 additions and 0 deletions
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src/video_core/engines/draw_manager.cpp
+40
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@@ -4,6 +4,8 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstring>
#include "common/settings.h"
#include "video_core/dirty_flags.h"
#include "video_core/engines/maxwell_3d.h"
@@ -130,6 +132,44 @@ void Maxwell3D::DrawManager::SetInlineIndexBuffer(Maxwell3D& maxwell3d, u32 inde
draw_state.draw_mode = DrawMode::InlineIndex;
}
void Maxwell3D::DrawManager::SetInlineIndexBuffer(Maxwell3D& maxwell3d, u32 method,
const u32* base_start, u32 amount) {
auto& index_buffer = draw_state.inline_index_draw_indexes;
switch (method) {
case MAXWELL3D_REG_INDEX(draw_inline_index): {
const auto* const bytes = reinterpret_cast<const u8*>(base_start);
index_buffer.insert(index_buffer.end(), bytes, bytes + size_t(amount) * sizeof(u32));
break;
}
case MAXWELL3D_REG_INDEX(inline_index_2x16.even): {
const size_t offset = index_buffer.size();
index_buffer.resize(offset + size_t(amount) * 2 * sizeof(u32));
u8* dst = index_buffer.data() + offset;
for (u32 i = 0; i < amount; ++i) {
const u32 word = base_start[i];
const u32 indexes[2]{word & 0xFFFF, word >> 16};
std::memcpy(dst, indexes, sizeof(indexes));
dst += sizeof(indexes);
}
break;
}
case MAXWELL3D_REG_INDEX(inline_index_4x8.index0): {
const size_t offset = index_buffer.size();
index_buffer.resize(offset + size_t(amount) * 4 * sizeof(u32));
u8* dst = index_buffer.data() + offset;
for (u32 i = 0; i < amount; ++i) {
const u32 word = base_start[i];
const u32 indexes[4]{word & 0xFF, (word >> 8) & 0xFF, (word >> 16) & 0xFF,
word >> 24};
std::memcpy(dst, indexes, sizeof(indexes));
dst += sizeof(indexes);
}
break;
}
}
draw_state.draw_mode = DrawMode::InlineIndex;
}
void Maxwell3D::DrawManager::DrawBegin(Maxwell3D& maxwell3d) {
auto reset_instance_count = maxwell3d.regs.draw.instance_id == Maxwell3D::Regs::Draw::InstanceId::First;
auto increment_instance_count = maxwell3d.regs.draw.instance_id == Maxwell3D::Regs::Draw::InstanceId::Subsequent;