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buffer_cache: Split updateBuffer calls into 65536 byte chunks. (#2915)
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squidbus 2025-05-12 15:27:47 -07:00 • committed by GitHub
parent 9baa58dd92
commit b23f6fdc1d
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1 changed files with 9 additions and 1 deletions
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10
src/video_core/buffer_cache/buffer_cache.cpp
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@ -238,7 +238,15 @@ void BufferCache::InlineData(VAddr address, const void* value, u32 num_bytes, bo
.bufferMemoryBarrierCount = 1,
.pBufferMemoryBarriers = &pre_barrier,
});
cmdbuf.updateBuffer(buffer->Handle(), buffer->Offset(address), num_bytes, value);
// vkCmdUpdateBuffer can only copy up to 65536 bytes at a time.
static constexpr u32 UpdateBufferMaxSize = 65536;
const auto dst_offset = buffer->Offset(address);
for (u32 offset = 0; offset < num_bytes; offset += UpdateBufferMaxSize) {
const auto* update_src = static_cast<const u8*>(value) + offset;
const auto update_dst = dst_offset + offset;
const auto update_size = std::min(num_bytes - offset, UpdateBufferMaxSize);
cmdbuf.updateBuffer(buffer->Handle(), update_dst, update_size, update_src);
}
cmdbuf.pipelineBarrier2(vk::DependencyInfo{
.dependencyFlags = vk::DependencyFlagBits::eByRegion,
.bufferMemoryBarrierCount = 1,