;; constant offsets -- these should be created at build time
-c_onyxblock2left_offset EQU 25
-c_onyxblock2above_offset EQU 50
+c_block2above_offset EQU 25
c_entropy_nodes EQU 11
c_dct_eob_token EQU 11
ldr r1, [r9, #detok_current_bc]
ldr r0, [r9, #detok_qcoeff_start_ptr]
mov r11, #0 ; i
- mov r3, #0x10 ; stop
+ mov r3, #16 ; stop
cmp r7, #1 ; type ?= 1
addeq r11, r11, #24 ; i = 24
addeq r3, r3, #8 ; stop = 24
- addeq r0, r0, #3, 24 ; qcoefptr += 24*16 ?CHECKME
+ addeq r0, r0, #3, 24 ; qcoefptr += 24*16
str r0, [sp, #l_qcoeff]
str r11, [sp, #l_i]
ldr r8, [r1, #bool_decoder_user_buffer]
- ldr r10, [lr, #detok_coef_probs] ; coef_probs[type]
+ ldr r10, [lr, #detok_coef_probs]
ldr r5, [r1, #bool_decoder_count]
ldr r6, [r1, #bool_decoder_range]
ldr r4, [r1, #bool_decoder_value]
str r10, [sp, #l_coef_ptr]
- ;align 4
BLOCK_LOOP
- ldr r3, [r9, #detok_ptr_onyxblock2context_leftabove]
- ldr r2, [r9, #detok_A]
+ ldr r3, [r9, #detok_ptr_block2leftabove]
ldr r1, [r9, #detok_L]
- ldrb r12, [r3, r11]! ; onyxblock2context[i]
+ ldr r2, [r9, #detok_A]
+ ldrb r12, [r3, r11]! ; block2left[i]
+ ldrb r3, [r3, #c_block2above_offset]; block2above[i]
cmp r7, #0 ; c = !type
moveq r7, #1
movne r7, #0
- ldr r0, [r2, r12, lsl #2] ; A[onyxblock2context[i]]
- add r1, r1, r12, lsl #4 ; L + onyxblock2context[i] << 4
- ; A is ptr to ptr (**)
- ; L is ptr to data (*[4])
-
- ldrb r2, [r3, #c_onyxblock2above_offset] ; + above offset
- ldrb r3, [r3, #c_onyxblock2left_offset] ; + left offset
+ ldrb r0, [r1, r12]! ; *(L += block2left[i])
+ ldrb r3, [r2, r3]! ; *(A += block2above[i])
mov lr, #c_entropy_nodes ; ENTROPY_NODES = 11
-;; ;++
- ldr r2, [r0, r2, lsl #2]! ; A + above offset
- ldr r3, [r1, r3, lsl #2]! ; L + left offset
; VP8_COMBINEENTROPYCONTETEXTS(t, *a, *l) => t = ((*a) != 0) + ((*l) !=0)
- cmp r2, #0 ; *a ?= 0
- movne r2, #1 ; haha if a == 0 no need to set up another var to state that pretty sweet :)
- cmp r3, #0 ; *l ?= 0
- addne r2, r2, #1 ; t
+ cmp r0, #0 ; *l ?= 0
+ movne r0, #1
+ cmp r3, #0 ; *a ?= 0
+ addne r0, r0, #1 ; t
str r1, [sp, #l_l_ptr] ; save &l
- str r0, [sp, #l_a_ptr] ; save &a
- smlabb r0, r2, lr, r10 ; Prob = coef_probs + (t * ENTROPY_NODES)
+ str r2, [sp, #l_a_ptr] ; save &a
+ smlabb r0, r0, lr, r10 ; Prob = coef_probs + (t * ENTROPY_NODES)
mov r1, #0 ; t = 0
str r7, [sp, #l_c]
;align 4
COEFF_LOOP
- ldr r3, [r9, #detok_ptr_onyx_coef_bands_x]
- ldr lr, [r9, #detok_onyx_coef_tree_ptr]
-
- ; onyx_coef_bands_x is UINT16
- add r3, r3, r7, lsl #1 ; coef_bands_x[c]
- ldrh r3, [r3] ; UINT16
-
- ;++
+ ldr r3, [r9, #detok_ptr_coef_bands_x]
+ ldr lr, [r9, #detok_coef_tree_ptr]
+ ;STALL
+ ldrb r3, [r3, r7] ; coef_bands_x[c]
+ ;STALL
+ ;STALL
add r0, r0, r3 ; Prob += coef_bands_x[c]
- ;align 4
get_token_loop
ldrb r2, [r0, +r1, asr #1] ; Prob[t >> 1]
mov r3, r6, lsl #8 ; range << 8
mov r4, r4, lsl r3 ; value <<= shift
ldrleb r2, [r8], #1 ; *(bufptr++)
addle r5, r5, #8 ; count += 8
- rsble r3, r5, #24 ; BR_COUNT - count
+ rsble r3, r5, #24 ; BR_COUNT - count
orrle r4, r4, r2, lsl r3 ; value |= *bufptr << (BR_COUNT - count)
- add r0, r0, #0xB ; Prob += ENTROPY_NODES (11)
+ add r0, r0, #11 ; Prob += ENTROPY_NODES (11)
cmn r1, #1 ; t < -ONE_TOKEN
- addlt r0, r0, #0xB ; Prob += ENTROPY_NODES (11)
+ addlt r0, r0, #11 ; Prob += ENTROPY_NODES (11)
mvn r1, #1 ; t = -1 ???? C is -2
ldr r7, [sp, #l_c] ; c
ldr r3, [r9, #detok_scan]
add r1, r1, #2 ; t+= 2
- cmp r7, #(0x10 - 1) ; c should will be one higher
+ cmp r7, #15 ; c should will be one higher
ldr r3, [r3, +r7, lsl #2] ; scan[c] this needs pre-inc c value
add r7, r7, #1 ; c++
blt COEFF_LOOP
- sub r7, r7, #1 ; if(t != -DCT_EOB_TOKEN) --c ; never stored! no condition!
+ sub r7, r7, #1 ; if(t != -DCT_EOB_TOKEN) --c
END_OF_BLOCK
ldr r3, [sp, #l_type] ; type
movne r3, #1 ; t
moveq r3, #0
- add r0, r0, #0x20 ; qcoeff += 32 (16 * 2?)
+ add r0, r0, #32 ; qcoeff += 32 (16 * 2?)
add r11, r11, #1 ; i++
- str r3, [r7] ; *l = t
- str r3, [r2] ; *a = t
+ strb r3, [r7] ; *l = t
+ strb r3, [r2] ; *a = t
str r0, [sp, #l_qcoeff] ; qcoeff
str r11, [sp, #l_i] ; i
- cmp r11, r12 ; i >= stop ? VERIFY should be strictly LT(<)?
+ cmp r11, r12 ; i < stop
ldr r7, [sp, #l_type] ; type
- mov lr, #0xB ; 11 (ENTORPY_NODES?)
blt BLOCK_LOOP
- cmp r11, #0x19 ; i ?= 25
+ cmp r11, #25 ; i ?= 25
bne ln2_decode_mb_to
ldr r12, [r9, #detok_qcoeff_start_ptr]
ldr r10, [r9, #detok_coef_probs]
mov r7, #0 ; type/i = 0
- mov r3, #0x10 ; stop = 0
+ mov r3, #16 ; stop = 16
str r12, [sp, #l_qcoeff] ; qcoeff_ptr = qcoeff_start_ptr
str r7, [sp, #l_i]
str r7, [sp, #l_type]
str r3, [sp, #l_stop]
- str r10, [sp, #l_coef_ptr] ; coef_probs = coef_probs[type] (0)
+ str r10, [sp, #l_coef_ptr] ; coef_probs = coef_probs[type=0]
b BLOCK_LOOP
ln2_decode_mb_to
- cmp r11, #0x10 ; i ?= 16
+ cmp r11, #16 ; i ?= 16
bne ln1_decode_mb_to
mov r10, #detok_coef_probs
add r10, r10, #2*4 ; coef_probs[type]
- ldr r10, [r9, r10] ; detok + 48 - THIS IS PROBABLY THE ISSUE: NEW STRUCTURE
+ ldr r10, [r9, r10] ; detok + detok_coef_probs[type]
mov r7, #2 ; type = 2
- mov r3, #0x18 ; stop = 24
+ mov r3, #24 ; stop = 24
str r7, [sp, #l_type]
str r3, [sp, #l_stop]
- str r10, [sp, #l_coef_ptr] ; coef_probs = coef_probs[type] - didn't want to add 2 to coef_probs
+ str r10, [sp, #l_coef_ptr] ; coef_probs = coef_probs[type]
b BLOCK_LOOP
ln1_decode_mb_to
}
#if CONFIG_ARM_ASM_DETOK
-DECLARE_ALIGNED(16, const UINT8, vp8_block2context_leftabove[25*3]) =
+// mashup of vp8_block2left and vp8_block2above so we only need one pointer
+// for the assembly version.
+DECLARE_ALIGNED(16, const UINT8, vp8_block2leftabove[25*2]) =
{
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, //end of vp8_block2context
- 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 0, 0, 1, 1, 0, 0, 1, 1, 0, //end of vp8_block2left
- 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 0, 1, 0, 1, 0, 1, 0 //end of vp8_block2above
+ //vp8_block2left
+ 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8,
+ //vp8_block2above
+ 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8
};
void vp8_init_detokenizer(VP8D_COMP *dx)
MACROBLOCKD *x = & dx->mb;
dx->detoken.vp8_coef_tree_ptr = vp8_coef_tree;
- dx->detoken.ptr_onyxblock2context_leftabove = vp8_block2context_leftabove;
- dx->detoken.ptr_onyx_coef_bands_x = vp8_coef_bands_x;
+ dx->detoken.ptr_block2leftabove = vp8_block2leftabove;
+ dx->detoken.ptr_coef_bands_x = vp8_coef_bands_x;
dx->detoken.scan = vp8_default_zig_zag1d;
dx->detoken.teb_base_ptr = vp8d_token_extra_bits2;
dx->detoken.qcoeff_start_ptr = &x->qcoeff[0];
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