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44 lines
1.2 KiB
44 lines
1.2 KiB
6 years ago
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#define UV_SIZE ((TRANSFORMED_WIDTH/2)*(TRANSFORMED_HEIGHT/2))
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__kernel void loadys(__global uchar8 const * const Y,
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__global float * out)
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{
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const int gid = get_global_id(0);
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const int ois = gid * 8;
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const int oy = ois / TRANSFORMED_WIDTH;
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const int ox = ois % TRANSFORMED_WIDTH;
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const uchar8 ys = Y[gid];
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// y = (x - 128) / 128
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const float8 ysf = (convert_float8(ys) - 128.f) * 0.0078125f;
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// 02
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// 13
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__global float* outy0;
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__global float* outy1;
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if ((oy & 1) == 0) {
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outy0 = out; //y0
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outy1 = out + UV_SIZE*2; //y2
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} else {
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outy0 = out + UV_SIZE; //y1
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outy1 = out + UV_SIZE*3; //y3
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}
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vstore4(ysf.s0246, 0, outy0 + (oy/2) * (TRANSFORMED_WIDTH/2) + ox/2);
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vstore4(ysf.s1357, 0, outy1 + (oy/2) * (TRANSFORMED_WIDTH/2) + ox/2);
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}
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__kernel void loaduv(__global uchar8 const * const in,
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__global float8 * out,
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int out_offset)
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{
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const int gid = get_global_id(0);
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const uchar8 inv = in[gid];
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// y = (x - 128) / 128
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const float8 outv = (convert_float8(inv) - 128.f) * 0.0078125f;
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out[gid + out_offset / 8] = outv;
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}
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