wehub-resource-sync
65 lines
3.5 KiB
Common Lisp
65 lines
3.5 KiB
Common Lisp
#ifdef MNN_SUPPORT_FP16
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#pragma OPENCL EXTENSION cl_khr_fp16 : enable
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#endif
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#define GLOBAL_SIZE_3_DIMS \
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__private const int global_size_dim0, __private const int global_size_dim1, __private const int global_size_dim2,
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#define DEAL_NON_UNIFORM_DIM3(input1, input2, input3) \
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if (input1 >= global_size_dim0 || input2 >= global_size_dim1 || input3 >= global_size_dim2) { \
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return; \
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}
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__constant sampler_t SAMPLER = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP | CLK_FILTER_NEAREST;
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__kernel void interp(GLOBAL_SIZE_3_DIMS __read_only image2d_t input, __write_only image2d_t output,
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__private const float height_scale, __private const float width_scale,
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__private const float height_offset, __private const float width_offset,
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__private const int input_height, __private const int input_width,
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__private const int out_height) {
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const int output_channel_block_idx = get_global_id(0);
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const int output_width_block_idx = get_global_id(1);
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const int output_batch_height_block_idx = get_global_id(2);
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DEAL_NON_UNIFORM_DIM3(output_channel_block_idx, output_width_block_idx, output_batch_height_block_idx);
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const int output_channel_block_idxs = global_size_dim0;
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const int output_width = global_size_dim1;
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const int output_batch_idx = output_batch_height_block_idx / out_height;
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const int output_height_idx = output_batch_height_block_idx % out_height;
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const float scale_height = output_height_idx * height_scale + height_offset;
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const float scale_width = output_width_block_idx * width_scale + width_offset;
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#define CLAMP(val, min_val, max_val) max(min(val, max_val), min_val)
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const int height_floor = (int)floor(scale_height);
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const int height_lf = CLAMP(height_floor, 0, input_height - 1);
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const int height_uf = CLAMP(height_floor + 1, 0, input_height - 1);
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const int width_floor = (int)floor(scale_width);
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const int width_lf = CLAMP(width_floor, 0, input_width - 1);
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const int width_uf = CLAMP(width_floor + 1, 0, input_width - 1);
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const float height_gap = scale_height - height_floor;
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const float width_gap = scale_width - width_floor;
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const int input_width_offset = mul24(output_channel_block_idx, input_width);
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const int input_height_offset = mul24(output_batch_idx, input_height);
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float4 top_left =
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read_imagef(input, SAMPLER, (int2)(input_width_offset + width_lf, input_height_offset + height_lf));
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float4 top_right =
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read_imagef(input, SAMPLER, (int2)(input_width_offset + width_uf, input_height_offset + height_lf));
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float4 bottom_left =
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read_imagef(input, SAMPLER, (int2)(input_width_offset + width_lf, input_height_offset + height_uf));
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float4 bottom_right =
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read_imagef(input, SAMPLER, (int2)(input_width_offset + width_uf, input_height_offset + height_uf));
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float4 top = mad((top_right - top_left), width_gap, top_left);
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float4 bottom = mad((bottom_right - bottom_left), width_gap, bottom_left);
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float4 out = mad((bottom - top), height_gap, top);
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const int out_image_w = mad24(output_channel_block_idx, output_width, output_width_block_idx);
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const int out_image_h = mad24(output_batch_idx, out_height, output_height_idx);
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write_imagef(output, (int2)(out_image_w, out_image_h), out);
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}
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