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Compositor: Implement single value reduction for CPU

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This patch implements single value reduction for the new CPU compositor.

Reference #125968.
This commit is contained in:
Omar Emara
2024-10-09 15:18:58 +03:00
parent 9e6c884394
commit dad7babaae
1 changed files with 15 additions and 5 deletions
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20
source/blender/compositor/realtime_compositor/intern/reduce_to_single_value_operation.cc
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@@ -27,11 +27,19 @@ ReduceToSingleValueOperation::ReduceToSingleValueOperation(Context &context, Res
void ReduceToSingleValueOperation::execute()
{
/* Make sure any prior writes to the texture are reflected before downloading it. */
GPU_memory_barrier(GPU_BARRIER_TEXTURE_UPDATE);
Result &input = get_input();
const Result &input = get_input();
float *pixel = static_cast<float *>(GPU_texture_read(input, GPU_DATA_FLOAT, 0));
float *pixel = nullptr;
bool need_to_free_pixel = false;
if (context().use_gpu()) {
/* Make sure any prior writes to the texture are reflected before downloading it. */
GPU_memory_barrier(GPU_BARRIER_TEXTURE_UPDATE);
pixel = static_cast<float *>(GPU_texture_read(input, GPU_DATA_FLOAT, 0));
need_to_free_pixel = true;
}
else {
pixel = input.float_texture();
}
Result &result = get_result();
result.allocate_single_value();
@@ -51,7 +59,9 @@ void ReduceToSingleValueOperation::execute()
break;
}
MEM_freeN(pixel);
if (need_to_free_pixel) {
MEM_freeN(pixel);
}
}
SimpleOperation *ReduceToSingleValueOperation::construct_if_needed(Context &context,