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Make a separate macro for writing an entire block from registers to memory

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Originally committed as revision 15354 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2008-09-18 03:08:13 +00:00
parent 3f429d11da
commit 7b16a97969
1 changed files with 12 additions and 9 deletions
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21
libavcodec/i386/vp3dsp_sse2.c
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@ -121,9 +121,7 @@ DECLARE_ALIGNED_16(const uint16_t, ff_vp3_idct_data[7 * 8]) =
SHIFT(%%xmm1) /* xmm1 = op1 */ \
"movdqa "I(2)", %%xmm3 \n\t" /* Load D. from I(2) */ \
"paddsw %%xmm7, %%xmm7 \n\t" /* xmm7 = G + G */ \
"movdqa %%xmm2, "O(2)" \n\t" /* Write out op2 */ \
"paddsw %%xmm4, %%xmm7 \n\t" /* xmm7 = E + G = G. */ \
"movdqa %%xmm1, "O(1)" \n\t" /* Write out op1 */ \
"psubsw %%xmm3, %%xmm4 \n\t" /* xmm4 = E. - D. = R4 */ \
ADD(%%xmm4) /* Adjust R4 and R3 before shifting */ \
"paddsw %%xmm3, %%xmm3 \n\t" /* xmm3 = D. + D. */ \
@ -135,20 +133,23 @@ DECLARE_ALIGNED_16(const uint16_t, ff_vp3_idct_data[7 * 8]) =
"paddsw %%xmm5, %%xmm5 \n\t" /* xmm5 = B.. + B.. */ \
"paddsw %%xmm6, %%xmm5 \n\t" /* xmm5 = F. + B.. = R5 */ \
SHIFT(%%xmm6) /* xmm6 = op6 */ \
"movdqa %%xmm4, "O(4)" \n\t" /* Write out op4 */ \
SHIFT(%%xmm5) /* xmm5 = op5 */ \
"movdqa %%xmm3, "O(3)" \n\t" /* Write out op3 */ \
"psubsw %%xmm0, %%xmm7 \n\t" /* xmm7 = G. - C. = R7 */ \
ADD(%%xmm7) /* Adjust R7 and R0 before shifting */ \
"paddsw %%xmm0, %%xmm0 \n\t" /* xmm0 = C. + C. */ \
"paddsw %%xmm7, %%xmm0 \n\t" /* xmm0 = G. + C. */ \
SHIFT(%%xmm7) /* xmm7 = op7 */ \
"movdqa %%xmm6, "O(6)" \n\t" /* Write out op6 */ \
SHIFT(%%xmm0) /* xmm0 = op0 */ \
"movdqa %%xmm5, "O(5)" \n\t" /* Write out op5 */ \
"movdqa %%xmm7, "O(7)" \n\t" /* Write out op7 */ \
"movdqa %%xmm0, "O(0)" \n\t" /* Write out op0 */
SHIFT(%%xmm0) /* xmm0 = op0 */
#define PUT_BLOCK(r0, r1, r2, r3, r4, r5, r6, r7) \
"movdqa " #r0 ", " O(0) "\n\t" \
"movdqa " #r1 ", " O(1) "\n\t" \
"movdqa " #r2 ", " O(2) "\n\t" \
"movdqa " #r3 ", " O(3) "\n\t" \
"movdqa " #r4 ", " O(4) "\n\t" \
"movdqa " #r5 ", " O(5) "\n\t" \
"movdqa " #r6 ", " O(6) "\n\t" \
"movdqa " #r7 ", " O(7) "\n\t"
#define SSE2_Transpose() \
"movdqa "I(4)", %%xmm4 \n\t" /* xmm4=e7e6e5e4e3e2e1e0 */ \
@ -218,10 +219,12 @@ void ff_vp3_idct_sse2(int16_t *input_data)
asm volatile (
VP3_1D_IDCT_SSE2(NOP, NOP)
PUT_BLOCK(%%xmm0, %%xmm1, %%xmm2, %%xmm3, %%xmm4, %%xmm5, %%xmm6, %%xmm7)
SSE2_Transpose()
VP3_1D_IDCT_SSE2(ADD8, SHIFT4)
PUT_BLOCK(%%xmm0, %%xmm1, %%xmm2, %%xmm3, %%xmm4, %%xmm5, %%xmm6, %%xmm7)
:: "r"(input_data), "r"(ff_vp3_idct_data), "m"(ff_pw_8)
);
}