diff options
Diffstat (limited to 'gst/rtjpeg')
| -rw-r--r-- | gst/rtjpeg/RTjpeg.c | 108 |
1 files changed, 54 insertions, 54 deletions
diff --git a/gst/rtjpeg/RTjpeg.c b/gst/rtjpeg/RTjpeg.c index 38d3ce12..0f795e79 100644 --- a/gst/rtjpeg/RTjpeg.c +++ b/gst/rtjpeg/RTjpeg.c @@ -43,7 +43,7 @@ typedef unsigned long __u32; typedef signed long __s32; typedef unsigned long long __u64; -//#define MMX_TRACE +/*#define MMX_TRACE */ #ifdef HAVE_LIBMMX @@ -412,7 +412,7 @@ void RTjpeg_dctY(__u8 *idata, __s16 *odata, int rskip) register mmx_t *dataptr = (mmx_t *)odata; mmx_t *idata2 = (mmx_t *)idata; - // first copy the input 8 bit to the destination 16 bits + /* first copy the input 8 bit to the destination 16 bits */ movq_m2r(RTjpeg_zero, mm2); @@ -505,102 +505,102 @@ void RTjpeg_dctY(__u8 *idata, __s16 *odata, int rskip) /* Start Transpose to do calculations on rows */ - movq_m2r(*(dataptr+9), mm7); // m03:m02|m01:m00 - first line (line 4)and copy into m5 + movq_m2r(*(dataptr+9), mm7); /* m03:m02|m01:m00 - first line (line 4)and copy into m5 */ - movq_m2r(*(dataptr+13), mm6); // m23:m22|m21:m20 - third line (line 6)and copy into m2 + movq_m2r(*(dataptr+13), mm6); /* m23:m22|m21:m20 - third line (line 6)and copy into m2 */ movq_r2r(mm7, mm5); - punpcklwd_m2r(*(dataptr+11), mm7); // m11:m01|m10:m00 - interleave first and second lines + punpcklwd_m2r(*(dataptr+11), mm7); /* m11:m01|m10:m00 - interleave first and second lines */ movq_r2r(mm6, mm2); - punpcklwd_m2r(*(dataptr+15), mm6); // m31:m21|m30:m20 - interleave third and fourth lines + punpcklwd_m2r(*(dataptr+15), mm6); /* m31:m21|m30:m20 - interleave third and fourth lines */ movq_r2r(mm7, mm1); - movq_m2r(*(dataptr+11), mm3); // m13:m13|m11:m10 - second line - punpckldq_r2r(mm6, mm7); // m30:m20|m10:m00 - interleave to produce result 1 + movq_m2r(*(dataptr+11), mm3); /* m13:m13|m11:m10 - second line */ + punpckldq_r2r(mm6, mm7); /* m30:m20|m10:m00 - interleave to produce result 1 */ - movq_m2r(*(dataptr+15), mm0); // m13:m13|m11:m10 - fourth line - punpckhdq_r2r(mm6, mm1); // m31:m21|m11:m01 - interleave to produce result 2 + movq_m2r(*(dataptr+15), mm0); /* m13:m13|m11:m10 - fourth line */ + punpckhdq_r2r(mm6, mm1); /* m31:m21|m11:m01 - interleave to produce result 2 */ - movq_r2m(mm7,*(dataptr+9)); // write result 1 - punpckhwd_r2r(mm3, mm5); // m13:m03|m12:m02 - interleave first and second lines + movq_r2m(mm7,*(dataptr+9)); /* write result 1 */ + punpckhwd_r2r(mm3, mm5); /* m13:m03|m12:m02 - interleave first and second lines */ - movq_r2m(mm1,*(dataptr+11)); // write result 2 - punpckhwd_r2r(mm0, mm2); // m33:m23|m32:m22 - interleave third and fourth lines + movq_r2m(mm1,*(dataptr+11)); /* write result 2 */ + punpckhwd_r2r(mm0, mm2); /* m33:m23|m32:m22 - interleave third and fourth lines */ movq_r2r(mm5, mm1); - punpckldq_r2r(mm2, mm5); // m32:m22|m12:m02 - interleave to produce result 3 + punpckldq_r2r(mm2, mm5); /* m32:m22|m12:m02 - interleave to produce result 3 */ - movq_m2r(*(dataptr+1), mm0); // m03:m02|m01:m00 - first line, 4x4 - punpckhdq_r2r(mm2, mm1); // m33:m23|m13:m03 - interleave to produce result 4 + movq_m2r(*(dataptr+1), mm0); /* m03:m02|m01:m00 - first line, 4x4 */ + punpckhdq_r2r(mm2, mm1); /* m33:m23|m13:m03 - interleave to produce result 4 */ - movq_r2m(mm5,*(dataptr+13)); // write result 3 + movq_r2m(mm5,*(dataptr+13)); /* write result 3 */ - // last 4x4 done + /* last 4x4 done */ - movq_r2m(mm1, *(dataptr+15)); // write result 4, last 4x4 + movq_r2m(mm1, *(dataptr+15)); /* write result 4, last 4x4 */ - movq_m2r(*(dataptr+5), mm2); // m23:m22|m21:m20 - third line + movq_m2r(*(dataptr+5), mm2); /* m23:m22|m21:m20 - third line */ movq_r2r(mm0, mm6); - punpcklwd_m2r(*(dataptr+3), mm0); // m11:m01|m10:m00 - interleave first and second lines + punpcklwd_m2r(*(dataptr+3), mm0); /* m11:m01|m10:m00 - interleave first and second lines */ movq_r2r(mm2, mm7); - punpcklwd_m2r(*(dataptr+7), mm2); // m31:m21|m30:m20 - interleave third and fourth lines + punpcklwd_m2r(*(dataptr+7), mm2); /* m31:m21|m30:m20 - interleave third and fourth lines */ movq_r2r(mm0, mm4); - // - movq_m2r(*(dataptr+8), mm1); // n03:n02|n01:n00 - first line - punpckldq_r2r(mm2, mm0); // m30:m20|m10:m00 - interleave to produce first result + + movq_m2r(*(dataptr+8), mm1); /* n03:n02|n01:n00 - first line */ + punpckldq_r2r(mm2, mm0); /* m30:m20|m10:m00 - interleave to produce first result */ - movq_m2r(*(dataptr+12), mm3); // n23:n22|n21:n20 - third line - punpckhdq_r2r(mm2, mm4); // m31:m21|m11:m01 - interleave to produce second result + movq_m2r(*(dataptr+12), mm3); /* n23:n22|n21:n20 - third line */ + punpckhdq_r2r(mm2, mm4); /* m31:m21|m11:m01 - interleave to produce second result */ - punpckhwd_m2r(*(dataptr+3), mm6); // m13:m03|m12:m02 - interleave first and second lines - movq_r2r(mm1, mm2); // copy first line + punpckhwd_m2r(*(dataptr+3), mm6); /* m13:m03|m12:m02 - interleave first and second lines */ + movq_r2r(mm1, mm2); /* copy first line */ - punpckhwd_m2r(*(dataptr+7), mm7); // m33:m23|m32:m22 - interleave third and fourth lines - movq_r2r(mm6, mm5); // copy first intermediate result + punpckhwd_m2r(*(dataptr+7), mm7); /* m33:m23|m32:m22 - interleave third and fourth lines */ + movq_r2r(mm6, mm5); /* copy first intermediate result */ - movq_r2m(mm0, *(dataptr+8)); // write result 1 - punpckhdq_r2r(mm7, mm5); // m33:m23|m13:m03 - produce third result + movq_r2m(mm0, *(dataptr+8)); /* write result 1 */ + punpckhdq_r2r(mm7, mm5); /* m33:m23|m13:m03 - produce third result */ - punpcklwd_m2r(*(dataptr+10), mm1); // n11:n01|n10:n00 - interleave first and second lines - movq_r2r(mm3, mm0); // copy third line + punpcklwd_m2r(*(dataptr+10), mm1); /* n11:n01|n10:n00 - interleave first and second lines */ + movq_r2r(mm3, mm0); /* copy third line */ - punpckhwd_m2r(*(dataptr+10), mm2); // n13:n03|n12:n02 - interleave first and second lines + punpckhwd_m2r(*(dataptr+10), mm2); /* n13:n03|n12:n02 - interleave first and second lines */ - movq_r2m(mm4, *(dataptr+10)); // write result 2 out - punpckldq_r2r(mm7, mm6); // m32:m22|m12:m02 - produce fourth result + movq_r2m(mm4, *(dataptr+10)); /* write result 2 out */ + punpckldq_r2r(mm7, mm6); /* m32:m22|m12:m02 - produce fourth result */ - punpcklwd_m2r(*(dataptr+14), mm3); // n31:n21|n30:n20 - interleave third and fourth lines + punpcklwd_m2r(*(dataptr+14), mm3); /* n31:n21|n30:n20 - interleave third and fourth lines */ movq_r2r(mm1, mm4); - movq_r2m(mm6, *(dataptr+12)); // write result 3 out - punpckldq_r2r(mm3, mm1); // n30:n20|n10:n00 - produce first result + movq_r2m(mm6, *(dataptr+12)); /* write result 3 out */ + punpckldq_r2r(mm3, mm1); /* n30:n20|n10:n00 - produce first result */ - punpckhwd_m2r(*(dataptr+14), mm0); // n33:n23|n32:n22 - interleave third and fourth lines + punpckhwd_m2r(*(dataptr+14), mm0); /* n33:n23|n32:n22 - interleave third and fourth lines */ movq_r2r(mm2, mm6); - movq_r2m(mm5, *(dataptr+14)); // write result 4 out - punpckhdq_r2r(mm3, mm4); // n31:n21|n11:n01- produce second result + movq_r2m(mm5, *(dataptr+14)); /* write result 4 out */ + punpckhdq_r2r(mm3, mm4); /* n31:n21|n11:n01- produce second result */ - movq_r2m(mm1, *(dataptr+1)); // write result 5 out - (first result for other 4 x 4 block) - punpckldq_r2r(mm0, mm2); // n32:n22|n12:n02- produce third result + movq_r2m(mm1, *(dataptr+1)); /* write result 5 out - (first result for other 4 x 4 block) */ + punpckldq_r2r(mm0, mm2); /* n32:n22|n12:n02- produce third result */ - movq_r2m(mm4, *(dataptr+3)); // write result 6 out - punpckhdq_r2r(mm0, mm6); // n33:n23|n13:n03 - produce fourth result + movq_r2m(mm4, *(dataptr+3)); /* write result 6 out */ + punpckhdq_r2r(mm0, mm6); /* n33:n23|n13:n03 - produce fourth result */ - movq_r2m(mm2, *(dataptr+5)); // write result 7 out + movq_r2m(mm2, *(dataptr+5)); /* write result 7 out*/ - movq_m2r(*dataptr, mm0); // m03:m02|m01:m00 - first line, first 4x4 + movq_m2r(*dataptr, mm0); /* m03:m02|m01:m00 - first line, first 4x4 */ - movq_r2m(mm6, *(dataptr+7)); // write result 8 out + movq_r2m(mm6, *(dataptr+7)); /* write result 8 out */ -// Do first 4x4 quadrant, which is used in the beginning of the DCT: +/* Do first 4x4 quadrant, which is used in the beginning of the DCT: */ - movq_m2r(*(dataptr+4), mm7); // m23:m22|m21:m20 - third line + movq_m2r(*(dataptr+4), mm7); /* m23:m22|m21:m20 - third line */ movq_r2r(mm0, mm2); punpcklwd_m2r(*(dataptr+2), mm0); // m11:m01|m10:m00 - interleave first and second lines |