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anti-tear modes for Wiz

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@717 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-07-27 21:24:25 +00:00
parent d90f5bd748
commit cc41eb4fa3
16 changed files with 473 additions and 183 deletions
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219
platform/common/arm_utils.s
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@ -137,69 +137,201 @@ vidConvCpyRGB32hi:
@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ mode2 blitter for 40 cols
.global vidCpyM2_40col @ void *dest, void *src
vidCpyM2_40col:
@ mode2 blitter
.global vidcpy_m2 @ void *dest, void *src, int m32col, int with_32c_border
vidcpy_m2:
stmfd sp!, {r4-r6,lr}
mov r12, #224 @ lines
add r0, r0, #320*8
add r1, r1, #8
mov lr, #0
vidCpyM2_40_loop_out:
tst r2, r2
movne lr, #64
tstne r3, r3
addne r0, r0, #32
vidCpyM2_loop_out:
mov r6, #10
vidCpyM2_40_loop:
sub r6, r6, lr, lsr #5 @ -= 2 in 32col mode
vidCpyM2_loop:
subs r6, r6, #1
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
bne vidCpyM2_40_loop
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
bne vidCpyM2_loop
subs r12,r12,#1
add r0, r0, lr
add r1, r1, #8
bne vidCpyM2_40_loop_out
add r1, r1, lr
bne vidCpyM2_loop_out
ldmfd sp!, {r4-r6,lr}
bx lr
ldmfd sp!, {r4-r6,pc}
@ mode2 blitter for 32 cols
.global vidCpyM2_32col @ void *dest, void *src
vidCpyM2_32col:
stmfd sp!, {r4-r6,lr}
mov r12, #224 @ lines
.global vidcpy_m2_rot @ void *dest, void *src, int m32col, int with_32c_border
vidcpy_m2_rot:
stmfd sp!,{r4-r8,lr}
add r1, r1, #8
add r0, r0, #32
tst r2, r2
subne r1, r1, #32 @ adjust
vidCpyM2_32_loop_out:
mov r6, #8
vidCpyM2_32_loop:
subs r6, r6, #1
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
bne vidCpyM2_32_loop
subs r12,r12,#1
add r0, r0, #64
add r1, r1, #8+64
bne vidCpyM2_32_loop_out
mov r4, r0
mov r5, r1
mov r6, r2
mov r7, #8+4
ldmfd sp!, {r4-r6,lr}
bx lr
vidcpy_m2_rot_loop:
@ a bit lame but oh well..
mov r0, r4
mov r1, r5
mov r2, r7
mov r3, r6
mov r8, #328
adr lr, after_rot_blit8
stmfd sp!,{r4-r8,lr}
b rotated_blit8_2
after_rot_blit8:
add r5, r5, #328*4
add r7, r7, #4
cmp r7, #224+8+4
ldmgefd sp!,{r4-r8,pc}
b vidcpy_m2_rot_loop
@ mode2 blitter for 32 cols with no borders
.global vidCpyM2_32col_nobord @ void *dest, void *src
.global rotated_blit8 @ void *dst, void *linesx4, u32 y, int is_32col
rotated_blit8:
stmfd sp!,{r4-r8,lr}
mov r8, #320
vidCpyM2_32col_nobord:
stmfd sp!, {r4-r6,lr}
rotated_blit8_2:
add r0, r0, #(240*320)
sub r0, r0, #(240+4) @ y starts from 4
add r0, r0, r2
mov r12, #224 @ lines
tst r3, r3
subne r0, r0, #(240*32)
addne r1, r1, #32
movne lr, #256/4
moveq lr, #320/4
rotated_blit_loop8:
mov r6, r1
ldr r2, [r6], r8
ldr r3, [r6], r8
ldr r4, [r6], r8
ldr r5, [r6], r8
mov r6, r2, lsl #24
mov r6, r6, lsr #8
orr r6, r6, r3, lsl #24
mov r6, r6, lsr #8
orr r6, r6, r4, lsl #24
mov r6, r6, lsr #8
orr r6, r6, r5, lsl #24
str r6, [r0], #-240
and r6, r3, #0xff00
and r7, r2, #0xff00
orr r6, r6, r7, lsr #8
and r7, r4, #0xff00
orr r6, r6, r7, lsl #8
and r7, r5, #0xff00
orr r6, r6, r7, lsl #16
str r6, [r0], #-240
and r6, r4, #0xff0000
and r7, r2, #0xff0000
orr r6, r6, r7, lsr #16
and r7, r3, #0xff0000
orr r6, r6, r7, lsr #8
and r7, r5, #0xff0000
orr r6, r6, r7, lsl #8
str r6, [r0], #-240
mov r6, r5, lsr #24
mov r6, r6, lsl #8
orr r6, r6, r4, lsr #24
mov r6, r6, lsl #8
orr r6, r6, r3, lsr #24
mov r6, r6, lsl #8
orr r6, r6, r2, lsr #24
str r6, [r0], #-240
subs lr, lr, #1
add r1, r1, #4
bne rotated_blit_loop8
ldmfd sp!,{r4-r8,pc}
@ input: r2-r5
@ output: r7,r8
@ trash: r6
.macro rb_line_low
mov r6, r2, lsl #16
mov r7, r3, lsl #16
orr r7, r7, r6, lsr #16
mov r6, r4, lsl #16
mov r8, r5, lsl #16
orr r8, r8, r6, lsr #16
.endm
.macro rb_line_hi
mov r6, r2, lsr #16
mov r7, r3, lsr #16
orr r7, r6, r7, lsl #16
mov r6, r4, lsr #16
mov r8, r5, lsr #16
orr r8, r6, r8, lsl #16
.endm
.global rotated_blit16 @ void *dst, void *linesx4, u32 y, int is_32col
rotated_blit16:
stmfd sp!,{r4-r8,lr}
add r0, r0, #(240*320)*2
sub r0, r0, #(240+4)*2 @ y starts from 4
add r0, r0, r2, lsl #1
tst r3, r3
subne r0, r0, #(240*32)*2
addne r1, r1, #32*2
movne lr, #256/4
moveq lr, #320/4
rotated_blit_loop16:
ldr r2, [r1, #320*0*2]
ldr r3, [r1, #320*1*2]
ldr r4, [r1, #320*2*2]
ldr r5, [r1, #320*3*2]
rb_line_low
stmia r0, {r7,r8}
sub r0, r0, #240*2
rb_line_hi
stmia r0, {r7,r8}
sub r0, r0, #240*2
ldr r2, [r1, #320*0*2+4]
ldr r3, [r1, #320*1*2+4]
ldr r4, [r1, #320*2*2+4]
ldr r5, [r1, #320*3*2+4]
rb_line_low
stmia r0, {r7,r8}
sub r0, r0, #240*2
rb_line_hi
stmia r0, {r7,r8}
sub r0, r0, #240*2
subs lr, lr, #1
add r1, r1, #8
b vidCpyM2_32_loop_out
bne rotated_blit_loop16
ldmfd sp!,{r4-r8,pc}
.global spend_cycles @ c
@ -213,4 +345,3 @@ spend_cycles:
bx lr