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Refactor: use 'BLI_task_parallel_range' in Draw Cache

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One drawback to trying to predict the number of threads that will be
used in the `task_graph` is that we are only sure of the number when the
threads are running.

Using `BLI_task_parallel_range` allows the driver to
choose the best thread distribution through `parallel_reduce`.

The benefit is most evident on hardware with fewer cores.

This is the result on an 4-core laptop:
||before:|after:
|---|---|---|
|large_mesh_editing:|Average: 5.203638 FPS|Average: 5.398925 FPS
||rdata 15ms iter 43ms (frame 193ms)|rdata 14ms iter 36ms (frame 187ms)

Differential Revision: https://developer.blender.org/D11558
This commit is contained in:
Germano Cavalcante
2021-06-10 11:13:01 -03:00
parent 2330cec2c6
commit 0eb9351296
9 changed files with 32 additions and 35 deletions
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3
source/blender/gpu/intern/gpu_index_buffer.cc
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@@ -79,8 +79,7 @@ GPUIndexBuf *GPU_indexbuf_build_on_device(uint index_len)
return elem_;
}
void GPU_indexbuf_join_copies(GPUIndexBufBuilder *builder_to,
const GPUIndexBufBuilder *builder_from)
void GPU_indexbuf_join(GPUIndexBufBuilder *builder_to, const GPUIndexBufBuilder *builder_from)
{
BLI_assert(builder_to->data == builder_from->data);
builder_to->index_len = max_uu(builder_to->index_len, builder_from->index_len);