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path: root/core/multimedia/opieplayer/libmpeg3/video/worksheet.c
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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.c30
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 @@
1#include <stdio.h>
2#include <stdlib.h>
3#include <time.h>
4
5
6static LONGLONG mpeg3_MMX_601_Y_COEF = 0x0000004000400040;
7
8inline void mpeg3_601_mmx(unsigned long y,
9 unsigned long *output)
10{
11asm("
12/* Output will be 0x00rrggbb */
13 movd (%0), %%mm0; /* Load y 0x00000000000000yy */
14 /*pmullw mpeg3_MMX_601_Y_COEF, %%mm0; // Scale y 0x00000000000000yy */
15 psllw $6, %%mm0; /* Shift y coeffs 0x0000yyy0yyy0yyy0 */
16 movd %%mm0, (%1); /* Store output */
17 "
18:
19: "r" (&y), "r" (output));
20}
21
22
23int main(int argc, char *argv[])
24{
25 unsigned char output[1024];
26
27 memset(output, 0, 1024);
28 mpeg3_601_mmx(1, (unsigned long*)output);
29 printf("%02x%02x\n", *(unsigned char*)&output[1], *(unsigned char*)&output[0]);
30}