Diffstat (limited to 'core/multimedia/opieplayer/libmpeg3/video/worksheet.c') (more/less context) (ignore whitespace changes)
-rw-r--r-- | core/multimedia/opieplayer/libmpeg3/video/worksheet.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/core/multimedia/opieplayer/libmpeg3/video/worksheet.c b/core/multimedia/opieplayer/libmpeg3/video/worksheet.c new file mode 100644 index 0000000..c5a0553 --- a/dev/null +++ b/core/multimedia/opieplayer/libmpeg3/video/worksheet.c @@ -0,0 +1,30 @@ +#include <stdio.h> +#include <stdlib.h> +#include <time.h> + + +static LONGLONG mpeg3_MMX_601_Y_COEF = 0x0000004000400040; + +inline void mpeg3_601_mmx(unsigned long y, + unsigned long *output) +{ +asm(" +/* Output will be 0x00rrggbb */ + movd (%0), %%mm0; /* Load y 0x00000000000000yy */ +/* pmullw mpeg3_MMX_601_Y_COEF, %%mm0; // Scale y 0x00000000000000yy */ + psllw $6, %%mm0; /* Shift y coeffs 0x0000yyy0yyy0yyy0 */ + movd %%mm0, (%1); /* Store output */ + " +: +: "r" (&y), "r" (output)); +} + + +int main(int argc, char *argv[]) +{ + unsigned char output[1024]; + + memset(output, 0, 1024); + mpeg3_601_mmx(1, (unsigned long*)output); + printf("%02x%02x\n", *(unsigned char*)&output[1], *(unsigned char*)&output[0]); +} |