diff options
Diffstat (limited to 'libavcodec/armv4l/dsputil_arm_s.S')
| -rw-r--r-- | libavcodec/armv4l/dsputil_arm_s.S | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libavcodec/armv4l/dsputil_arm_s.S b/libavcodec/armv4l/dsputil_arm_s.S index 011925106e..ba06f3740f 100644 --- a/libavcodec/armv4l/dsputil_arm_s.S +++ b/libavcodec/armv4l/dsputil_arm_s.S @@ -708,3 +708,92 @@ function put_no_rnd_pixels8_xy2_arm, export=1 .word 0xFCFCFCFC >> 2 .word 0x0F0F0F0F .endfunc + +@ void ff_add_pixels_clamped_ARM(int16_t *block, uint8_t *dest, int stride) +function ff_add_pixels_clamped_ARM, export=1 + push {r4-r10} + mov r10, #8 +1: + ldr r4, [r1] /* load dest */ + /* block[0] and block[1]*/ + ldrsh r5, [r0] + ldrsh r7, [r0, #2] + and r6, r4, #0xFF + and r8, r4, #0xFF00 + add r6, r5, r6 + add r8, r7, r8, lsr #8 + mvn r5, r5 + mvn r7, r7 + tst r6, #0x100 + movne r6, r5, lsr #24 + tst r8, #0x100 + movne r8, r7, lsr #24 + mov r9, r6 + ldrsh r5, [r0, #4] /* moved form [A] */ + orr r9, r9, r8, lsl #8 + /* block[2] and block[3] */ + /* [A] */ + ldrsh r7, [r0, #6] + and r6, r4, #0xFF0000 + and r8, r4, #0xFF000000 + add r6, r5, r6, lsr #16 + add r8, r7, r8, lsr #24 + mvn r5, r5 + mvn r7, r7 + tst r6, #0x100 + movne r6, r5, lsr #24 + tst r8, #0x100 + movne r8, r7, lsr #24 + orr r9, r9, r6, lsl #16 + ldr r4, [r1, #4] /* moved form [B] */ + orr r9, r9, r8, lsl #24 + /* store dest */ + ldrsh r5, [r0, #8] /* moved form [C] */ + str r9, [r1] + + /* load dest */ + /* [B] */ + /* block[4] and block[5] */ + /* [C] */ + ldrsh r7, [r0, #10] + and r6, r4, #0xFF + and r8, r4, #0xFF00 + add r6, r5, r6 + add r8, r7, r8, lsr #8 + mvn r5, r5 + mvn r7, r7 + tst r6, #0x100 + movne r6, r5, lsr #24 + tst r8, #0x100 + movne r8, r7, lsr #24 + mov r9, r6 + ldrsh r5, [r0, #12] /* moved from [D] */ + orr r9, r9, r8, lsl #8 + /* block[6] and block[7] */ + /* [D] */ + ldrsh r7, [r0, #14] + and r6, r4, #0xFF0000 + and r8, r4, #0xFF000000 + add r6, r5, r6, lsr #16 + add r8, r7, r8, lsr #24 + mvn r5, r5 + mvn r7, r7 + tst r6, #0x100 + movne r6, r5, lsr #24 + tst r8, #0x100 + movne r8, r7, lsr #24 + orr r9, r9, r6, lsl #16 + add r0, r0, #16 /* moved from [E] */ + orr r9, r9, r8, lsl #24 + subs r10, r10, #1 /* moved from [F] */ + /* store dest */ + str r9, [r1, #4] + + /* [E] */ + /* [F] */ + add r1, r1, r2 + bne 1b + + pop {r4-r10} + bx lr + .endfunc |