Skip to content

I
imagej-elphel
Commit b4bc7876 authored by Andrey Filippov's avatar Andrey Filippov
Browse files
Options

Made it faster

parent c198d5f3
Expand all Show whitespace changes
Inline Side-by-side
Showing with 843 additions and 490 deletions
src/main/resources/TileProcessor.cuh
View file @ b4bc7876
This diff is collapsed.
src/main/resources/dtt8x8.cuh
View file @ b4bc7876
......@@ -85,6 +85,10 @@ __constant__ float SINN2[] = {0.098017f,0.290285f,0.471397f,0.634393f};
inline __device__ void dttii_shared_mem(float * x0, int inc, int dst_not_dct);
inline __device__ void dttiv_shared_mem(float * x0, int inc, int dst_not_dct);
inline __device__ void dttiv_nodiverg(float * x, int inc, int dst_not_dct);
inline __device__ void dctiv_nodiverg(float * x0, int inc);
inline __device__ void dstiv_nodiverg(float * x0, int inc);
inline __device__ void dct_ii8 ( float x[8], float y[8]); // x,y point to 8-element arrays each
inline __device__ void dct_iv8 ( float x[8], float y[8]); // x,y point to 8-element arrays each
inline __device__ void dst_iv8 ( float x[8], float y[8]); // x,y point to 8-element arrays each
......@@ -454,6 +458,207 @@ inline __device__ void dttiv_shared_mem(float * x0, int inc, int dst_not_dct)
}
}
inline __device__ void dttiv_nodiverg(float * x, int inc, int dst_not_dct)
{
float sgn = 1 - 2* dst_not_dct;
float *y0 = x;
float *y1 = y0 + inc;
float *y2 = y1 + inc;
float *y3 = y2 + inc;
float *y4 = y3 + inc;
float *y5 = y4 + inc;
float *y6 = y5 + inc;
float *y7 = y6 + inc;
float *x0 = x + dst_not_dct * 7 * inc;
// negate inc, replace
inc *= sgn;
float *x1 = x0 + inc;
float *x2 = x1 + inc;
float *x3 = x2 + inc;
float *x4 = x3 + inc;
float *x5 = x4 + inc;
float *x6 = x5 + inc;
float *x7 = x6 + inc;
float u00, u01, u02, u03, u10, u11, u12, u13;
u00= ( COSN2[0] * (*x0) + SINN2[0] * (*x7));
u10= (-SINN2[3] * (*x3) + COSN2[3] * (*x4));
u01= ( COSN2[1] * (*x1) + SINN2[1] * (*x6));
u11= -(-SINN2[2] * (*x2) + COSN2[2] * (*x5));
u02= ( COSN2[2] * (*x2) + SINN2[2] * (*x5));
u12= (-SINN2[1] * (*x1) + COSN2[1] * (*x6));
u03= ( COSN2[3] * (*x3) + SINN2[3] * (*x4));
u13= -(-SINN2[0] * (*x0) + COSN2[0] * (*x7));
// _dctii_nrecurs4(u00, u01, u02, u03, &v00, &v01, &v02, &v03);
float ua00= u00 + u03;
float ua10= u00 - u03;
float ua01= u01 + u02;
float ua11= u01 - u02;
float v00= ua00 + ua01;
float v02= ua00 - ua01;
float v01= COSPI_1_8_SQRT2 * ua10 + COSPI_3_8_SQRT2 * ua11;
float v03= COSPI_3_8_SQRT2 * ua10 - COSPI_1_8_SQRT2 * ua11;
// _dctii_nrecurs4(u10, u11, u12, u13, &v10, &v11, &v12, &v13);
float ub00= u10 + u13;
float ub10= u10 - u13;
float ub01= u11 + u12;
float ub11= u11 - u12;
float vb00= ub00 + ub01;
float vb01= ub00 - ub01;
float vb10= COSPI_1_8_SQRT2*ub10 + COSPI_3_8_SQRT2*ub11;
float vb11= COSPI_3_8_SQRT2*ub10 - COSPI_1_8_SQRT2*ub11;
*y0 = v00 * 0.5f; // w0[0];
*y2 = (v01 + vb11) * SQRT1_8; // w0[1];
*y4 = (v02 - vb01) * SQRT1_8; // w0[2];
*y6 = (v03 + vb10) * SQRT1_8; // w0[3];
*y1 = sgn * (v01 - vb11) * SQRT1_8; // w1[0];
*y3 = sgn * (v02 + vb01) * SQRT1_8; // w1[1];
*y5 = sgn * (v03 - vb10) * SQRT1_8; // w1[2]; - same as y[3]
*y7 = sgn * vb00 * 0.5f; // w1[3];
}
inline __device__ void dctiv_nodiverg(float * x0, int inc)
{
float *x1 = x0 + inc;
float *x2 = x1 + inc;
float *x3 = x2 + inc;
float *x4 = x3 + inc;
float *x5 = x4 + inc;
float *x6 = x5 + inc;
float *x7 = x6 + inc;
float u00, u01, u02, u03, u10, u11, u12, u13;
u00= ( COSN2[0] * (*x0) + SINN2[0] * (*x7));
u10= (-SINN2[3] * (*x3) + COSN2[3] * (*x4));
u01= ( COSN2[1] * (*x1) + SINN2[1] * (*x6));
u11= -(-SINN2[2] * (*x2) + COSN2[2] * (*x5));
u02= ( COSN2[2] * (*x2) + SINN2[2] * (*x5));
u12= (-SINN2[1] * (*x1) + COSN2[1] * (*x6));
u03= ( COSN2[3] * (*x3) + SINN2[3] * (*x4));
u13= -(-SINN2[0] * (*x0) + COSN2[0] * (*x7));
// _dctii_nrecurs4(u00, u01, u02, u03, &v00, &v01, &v02, &v03);
float ua00= u00 + u03;
float ua10= u00 - u03;
float ua01= u01 + u02;
float ua11= u01 - u02;
float v00= ua00 + ua01;
float v02= ua00 - ua01;
float v01= COSPI_1_8_SQRT2 * ua10 + COSPI_3_8_SQRT2 * ua11;
float v03= COSPI_3_8_SQRT2 * ua10 - COSPI_1_8_SQRT2 * ua11;
// _dctii_nrecurs4(u10, u11, u12, u13, &v10, &v11, &v12, &v13);
float ub00= u10 + u13;
float ub10= u10 - u13;
float ub01= u11 + u12;
float ub11= u11 - u12;
float vb00= ub00 + ub01;
float vb01= ub00 - ub01;
float vb10= COSPI_1_8_SQRT2*ub10 + COSPI_3_8_SQRT2*ub11;
float vb11= COSPI_3_8_SQRT2*ub10 - COSPI_1_8_SQRT2*ub11;
*x0 = v00 * 0.5f; // w0[0];
*x2 = (v01 + vb11) * SQRT1_8; // w0[1];
*x4 = (v02 - vb01) * SQRT1_8; // w0[2];
*x6 = (v03 + vb10) * SQRT1_8; // w0[3];
*x1 = (v01 - vb11) * SQRT1_8; // w1[0];
*x3 = (v02 + vb01) * SQRT1_8; // w1[1];
*x5 = (v03 - vb10) * SQRT1_8; // w1[2]; - same as y[3]
*x7 = vb00 * 0.5f; // w1[3];
}
inline __device__ void dstiv_nodiverg(float * x, int inc)
{
float *x0 = x + 7 * inc;
// negate inc, replace
inc = -inc;
float *x1 = x0 + inc;
float *x2 = x1 + inc;
float *x3 = x2 + inc;
float *x4 = x3 + inc;
float *x5 = x4 + inc;
float *x6 = x5 + inc;
float *x7 = x6 + inc;
float u00, u01, u02, u03, u10, u11, u12, u13;
u00= ( COSN2[0] * (*x0) + SINN2[0] * (*x7));
u10= (-SINN2[3] * (*x3) + COSN2[3] * (*x4));
u01= ( COSN2[1] * (*x1) + SINN2[1] * (*x6));
u11= -(-SINN2[2] * (*x2) + COSN2[2] * (*x5));
u02= ( COSN2[2] * (*x2) + SINN2[2] * (*x5));
u12= (-SINN2[1] * (*x1) + COSN2[1] * (*x6));
u03= ( COSN2[3] * (*x3) + SINN2[3] * (*x4));
u13= -(-SINN2[0] * (*x0) + COSN2[0] * (*x7));
// _dctii_nrecurs4(u00, u01, u02, u03, &v00, &v01, &v02, &v03);
float ua00= u00 + u03;
float ua10= u00 - u03;
float ua01= u01 + u02;
float ua11= u01 - u02;
float v00= ua00 + ua01;
float v02= ua00 - ua01;
float v01= COSPI_1_8_SQRT2 * ua10 + COSPI_3_8_SQRT2 * ua11;
float v03= COSPI_3_8_SQRT2 * ua10 - COSPI_1_8_SQRT2 * ua11;
// _dctii_nrecurs4(u10, u11, u12, u13, &v10, &v11, &v12, &v13);
float ub00= u10 + u13;
float ub10= u10 - u13;
float ub01= u11 + u12;
float ub11= u11 - u12;
float vb00= ub00 + ub01;
float vb01= ub00 - ub01;
float vb10= COSPI_1_8_SQRT2*ub10 + COSPI_3_8_SQRT2*ub11;
float vb11= COSPI_3_8_SQRT2*ub10 - COSPI_1_8_SQRT2*ub11;
*x7 = v00 * 0.5f; // w0[0];
*x5 = (v01 + vb11) * SQRT1_8; // w0[1];
*x3 = (v02 - vb01) * SQRT1_8; // w0[2];
*x1 = (v03 + vb10) * SQRT1_8; // w0[3];
*x6 = (vb11 - v01) * SQRT1_8; // w1[0];
*x4 = -(v02 + vb01) * SQRT1_8; // w1[1];
*x2 = (vb10 - v03) * SQRT1_8; // w1[2]; - same as y[3]
*x0 = -vb00 * 0.5f; // w1[3];
}
inline __device__ void _dctii_nrecurs8( float x[8], float y[8]) // x,y point to 8-element arrays each
{
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment