You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.2 KiB
44 lines
1.2 KiB
7 years ago
|
#define UV_SIZE ((TRANSFORMED_WIDTH/2)*(TRANSFORMED_HEIGHT/2))
|
||
|
|
|
||
|
|
__kernel void loadys(__global uchar8 const * const Y,
|
||
|
|
__global float * out)
|
||
|
|
{
|
||
|
|
const int gid = get_global_id(0);
|
||
|
|
const int ois = gid * 8;
|
||
|
|
const int oy = ois / TRANSFORMED_WIDTH;
|
||
|
|
const int ox = ois % TRANSFORMED_WIDTH;
|
||
|
|
|
||
|
|
const uchar8 ys = Y[gid];
|
||
|
|
|
||
|
|
// y = (x - 128) / 128
|
||
|
|
const float8 ysf = (convert_float8(ys) - 128.f) * 0.0078125f;
|
||
|
|
|
||
|
|
// 02
|
||
|
|
// 13
|
||
|
|
|
||
|
|
__global float* outy0;
|
||
|
|
__global float* outy1;
|
||
|
|
if ((oy & 1) == 0) {
|
||
|
|
outy0 = out; //y0
|
||
|
|
outy1 = out + UV_SIZE*2; //y2
|
||
|
|
} else {
|
||
|
|
outy0 = out + UV_SIZE; //y1
|
||
|
|
outy1 = out + UV_SIZE*3; //y3
|
||
|
|
}
|
||
|
|
|
||
|
|
vstore4(ysf.s0246, 0, outy0 + (oy/2) * (TRANSFORMED_WIDTH/2) + ox/2);
|
||
|
|
vstore4(ysf.s1357, 0, outy1 + (oy/2) * (TRANSFORMED_WIDTH/2) + ox/2);
|
||
|
|
}
|
||
|
|
|
||
|
|
__kernel void loaduv(__global uchar8 const * const in,
|
||
|
|
__global float8 * out,
|
||
|
|
int out_offset)
|
||
|
|
{
|
||
|
|
const int gid = get_global_id(0);
|
||
|
|
const uchar8 inv = in[gid];
|
||
|
|
|
||
|
|
// y = (x - 128) / 128
|
||
|
|
const float8 outv = (convert_float8(inv) - 128.f) * 0.0078125f;
|
||
|
|
out[gid + out_offset / 8] = outv;
|
||
|
|
}
|