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32x: final renderer tweaks; PWM disable kills PWM irqs

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@857 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2010-01-12 13:35:52 +00:00
parent e51e5983fe
commit 07e5dbab71
6 changed files with 135 additions and 39 deletions
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146
pico/32x/draw_arm.s
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@ -122,28 +122,8 @@ Pico32xNativePal:
@ packed pixel
.macro do_pixel_pp do_md
ldrb r7, [r11], #1 @ MD pixel
eor r12,r5, #1
ldrb r8, [r12] @ palette index
cmp r7, r3 @ MD has bg pixel?
mov r12,r8,lsl #1
ldrh r8, [r10,r12] @ t = 32x pixel
mov r7, r7, lsl #1
add r5, r5, #1
eorne r12,r8, #0x20
tstne r12, #0x20
.if \do_md
ldrneh r8, [r9, r7] @ t = palmd[*pmd]
subs r6, r6, #1
strh r8, [r0], #2 @ *dst++ = t
.else
streqh r8, [r0], #2
addne r0, r0, #2
subs r6, r6, #1
.endif
.endm
@ note: this may read a few bytes over the end of PicoDraw2FB and dram,
@ so those should have a bit more alloc'ed than really needed.
@ unsigned short *dst, unsigned short *dram, int lines_sft_offs, int mdbg
.macro make_do_loop_pp name call_scan do_md
.global \name
@ -173,16 +153,128 @@ Pico32xNativePal:
mov r12,r4, lsl #1
ldrh r12,[r1, r12]
add r11,r11,#8
mov r6, #320
mov r6, #320/2
add r5, r1, r12, lsl #1 @ p32x = dram + dram[l]
and r12,r2, #0x100 @ shift
add r5, r5, r12,lsr #8
2: @ loop_inner:
do_pixel_pp \do_md
do_pixel_pp \do_md
bgt 2b @ loop_inner
b 0b @ loop_outer
@ r4,r6 - counters; r5 - 32x data; r9,r10 - md,32x pal; r11 - md data
@ r7,r8,r12,lr - temp
tst r5, #1
ldreqb r8, [r5], #2
ldrb r7, [r5, #-1]
ldrneb r8, [r5, #2]! @ r7,r8 - pixel 0,1 index
subs r6, r6, #1
blt 0b @ loop_outer
cmp r7, r8
beq 5f @ check_fill @ +8
3: @ no_fill:
mov r12,r7, lsl #1
mov lr, r8, lsl #1
ldrh r7, [r10,r12]
ldrh r8, [r10,lr]
add r11,r11,#2
eor r12,r7, #0x20
tst r12,#0x20
ldrneb r12,[r11,#-2] @ MD pixel 0
eor lr, r8, #0x20
cmpne r12,r3 @ MD has bg pixel?
.if \do_md
mov r12,r12,lsl #1
ldrneh r7, [r9, r12] @ t = palmd[pmd[0]]
tst lr, #0x20
ldrneb lr, [r11,#-1] @ MD pixel 1
strh r7, [r0], #2
cmpne lr, r3 @ MD has bg pixel?
mov lr, lr, lsl #1
ldrneh r8, [r9, lr] @ t = palmd[pmd[1]]
strh r8, [r0], #2
.else
streqh r7, [r0]
tst lr, #0x20
ldrneb lr, [r11,#-1] @ MD pixel 1
add r0, r0, #4
cmpne lr, r3 @ MD has bg pixel?
streqh r8, [r0, #-2]
.endif
b 2b @ loop_inner
5: @ check_fill
@ count pixels, align if needed
bic r12,r5, #1
ldrh r12,[r12]
orr lr, r7, r7, lsl #8
cmp r12,lr
bne 3b @ no_fill
tst r5, #1
sub lr, r5, #2 @ starting r5 (32x render data start)
addeq r5, r5, #2
addne r5, r5, #1 @ add for the check above
add r6, r6, #1 @ restore from dec
orr r7, r7, r7, lsl #8
6:
sub r12,r5, lr
ldrh r8, [r5], #2
cmp r12,r6, lsl #1
ldrh r12,[r5], #2
bge 7f @ count_done
cmp r8, r7
cmpeq r12,r7
beq 6b
7: @ count_done
sub r5, r5, #4 @ undo readahead
@ fix alignment and check type
sub r8, r5, lr
tst r8, #1
subne r5, r5, #1
subne r8, r8, #1
and r7, r7, #0xff
cmp r8, r6, lsl #1
mov r7, r7, lsl #1
movgt r8, r6, lsl #1 @ r8=count
ldrh r7, [r10,r7]
sub r6, r6, r8, lsr #1 @ adjust counter
tst r7, #0x20
beq 9f @ bg_mode
add r11,r11,r8
8:
subs r8, r8, #2
strgeh r7, [r0], #2
strgeh r7, [r0], #2
bgt 8b
b 2b @ loop_inner
9: @ bg_mode:
ldrb r12,[r11],#1 @ MD pixel
ldrb lr, [r11],#1
cmp r12,r3 @ MD has bg pixel?
.if \do_md
mov r12,r12,lsl #1
ldrneh r12,[r9, r12] @ t = palmd[*pmd]
moveq r12,r7
cmp lr, r3
mov lr, lr, lsl #1
ldrneh lr, [r9, lr]
moveq lr, r7
strh r12,[r0], #2
strh lr, [r0], #2
.else
streqh r7, [r0]
cmp lr, r3
streqh r7, [r0, #2]
add r0, r0, #4
.endif
subs r8, r8, #2
bgt 9b @ bg_mode
b 2b @ loop_inner
.endm