RaySollium99/picodrive
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giz wip (acc 16bit faster than 8!)

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@260 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-09-24 21:06:34 +00:00
parent 2ec14aec8f
commit 499a0be394
7 changed files with 201 additions and 50 deletions
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145
Pico/Draw.s
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@ -1647,8 +1647,14 @@ FinalizeLineRGB555:
addeq r0, r0, #32*2
.fl_no32colRGB555:
.fl_loopRGB555:
.if UNALIGNED_DRAWLINEDEST
@ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer
tst r0, #2
bne .fl_RGB555u
.endif
.fl_loopRGB555:
ldr r12, [r1], #4
ldr r7, [r1], #4
@ -1670,12 +1676,12 @@ FinalizeLineRGB555:
ldrh r6, [r3, r6]
and r12,lr, r7, lsr #15
ldrh r12,[r3, r12]
and r7, lr, r7, lsr #23
ldrh r7, [r3, r7]
orr r8, r8, r6, lsl #16
and r6, lr, r7, lsr #23
ldrh r6, [r3, r6] @ 1 cycle interlock here (r6)
subs r2, r2, #1
orr r12,r12, r6, lsl #16
orr r12,r12, r7, lsl #16
stmia r0!, {r4,r5,r8,r12}
bne .fl_loopRGB555
@ -1689,6 +1695,11 @@ FinalizeLineRGB555:
mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007
orr r9, r9, #0x00e7
.if UNALIGNED_DRAWLINEDEST
tst r0, #2
bne .fl_32scale_RGB555u
.endif
.fl_loop32scale_RGB555:
ldr r12, [r1], #4
ldr r7, [r1], #4
@ -1745,6 +1756,132 @@ FinalizeLineRGB555:
ldmfd sp!, {r4-r8,lr}
bx lr
.if UNALIGNED_DRAWLINEDEST
@ unaligned versions of loops
.fl_RGB555u:
ldr r12, [r1], #4
ldr r7, [r1], #4
and r4, lr, r12, lsl #1
ldrh r4, [r3, r4]
and r5, lr, r12, lsr #7
ldrh r5, [r3, r5]
strh r4, [r0], #2
b .fl_loopRGB555u_enter
.fl_loopRGB555u:
ldr r12, [r1], #4
ldr r7, [r1], #4
and r4, lr, r12, lsl #1
ldrh r4, [r3, r4]
and r5, lr, r12, lsr #7
ldrh r5, [r3, r5]
orr r4, r8, r4, lsl #16
str r4, [r0], #4
.fl_loopRGB555u_enter:
and r6, lr, r12, lsr #15
ldrh r6, [r3, r6]
and r8, lr, r12, lsr #23
ldrh r8, [r3, r8]
orr r4, r5, r6, lsl #16
and r5, lr, r7, lsl #1
ldrh r5, [r3, r5]
and r6, lr, r7, lsr #7
ldrh r6, [r3, r6]
orr r5, r8, r5, lsl #16
and r12,lr, r7, lsr #15
ldrh r12,[r3, r12]
and r8, lr, r7, lsr #23
ldrh r8, [r3, r8]
orr r6, r6, r12,lsl #16
subs r2, r2, #1
stmia r0!, {r4,r5,r6}
bne .fl_loopRGB555u
strh r8, [r0], #2
ldmfd sp!, {r4-r8,lr}
bx lr
.fl_32scale_RGB555u:
@ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007
.fl_loop32scale_RGB555u:
ldr r12, [r1], #4
ldr r7, [r1], #4
and r4, lr, r12,lsl #1
ldrh r4, [r3, r4]
and r5, lr, r12,lsr #7
ldrh r5, [r3, r5]
and r4, r4, r9, lsl #2
@ orr r4, rx, r4, lsl #16
str r4, [r0], #4 @ pix_d -1, 0
.fl_loop32scale_RGB555u_enter:
and r4, r9, r4, lsr #2 @ r4=1/4 pix_s 0
and r5, r5, r9, lsl #2
sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1
add r4, r6, r4, lsr #2 @ r4=(1/4 pix_s 0) + (3/4 pix_s 1)
orr r4, r4, r5, lsl #15
and r6, lr, r12,lsr #15
ldrh r6, [r3, r6]
and r12,lr, r12,lsr #23
ldrh r12,[r3, r12]
and r6, r6, r9, lsl #2
add r4, r4, r6, lsl #15 @ pix_d 1, 2
@@ TODO...
mov r5, r5, lsr #1
sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2
orr r5, r5, r6, lsl #16
and r6, lr, r7, lsl #1
ldrh r6, [r3, r6]
and r12,r12,r9, lsl #2
add r5, r5, r12,lsl #14 @ pix_d 2, 3
and r6, r6, r9, lsl #2
orr r6, r12,r6, lsl #16 @ pix_d 4, 5
and r12,lr, r7, lsr #7
ldrh r12,[r3, r12]
and r10,lr, r7, lsr #15
ldrh r10,[r3, r10]
and r12,r12,r9, lsl #2
sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1
add r8, r8, r6, lsr #18
and r7, lr, r7, lsr #23
ldrh r7, [r3, r7]
and r10,r10,r9, lsl #2
orr r8, r8, r10,lsl #15
add r8, r8, r12,lsl #15 @ pix_d 6, 7
sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2
and r7, r7, r9, lsl #2
add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3
orr r10,r10,r7, lsl #16 @ pix_d 8, 9
subs r2, r2, #1
stmia r0!, {r4,r5,r6,r8,r10}
bne .fl_loop32scale_RGB555u
ldmfd sp!, {r9,r10}
ldmfd sp!, {r4-r8,lr}
bx lr
.endif @ UNALIGNED_DRAWLINEDEST
@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@