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sms, add fast renderer, remove 1st column (8 px) if blanked

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This commit is contained in:
kub 2022-09-21 23:26:48 +00:00
parent 23e4719638
commit 96948bdfc8
15 changed files with 454 additions and 181 deletions
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113
pico/draw_arm.S
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@ -1651,34 +1651,47 @@ FinalizeLine555:
ldr r4, [r5]
ldr r7, [r5, #OFS_PicoIn_AHW-OFS_PicoIn_opt]
ldrb r12,[r8, #OFS_Pico_video_reg+12]
ldrb r6, [r8, #OFS_Pico_video_reg+0]
ldr r2, [r8, #OFS_Pico_m_hardware]
add r1, r1, #8
tst r7, #0x10
beq .fl_no20colRGB555
tst r7, #0x10 @ SMS ?
beq .fl_noSMS
and r7, r2, #0x3
cmp r7, #0x3 @ Game Gear, LCD?
bne .fl_no20colRGB555
beq .fl_gg20col
tst r6, #0x20
movne r2, #248/8 @ len = 248
addne r1, r1, #8 @ ps += 8
moveq r2, #256/8 @ len = 256
b .fl_check32scaling
.fl_gg20col:
mov r2, #160/8 @ len = 160
tst r4, #0x4000 @ EN_SOFTSCALE?
bne .fl_20scale_RGB555 @ scale 160->320
beq .fl_checkborder
b .fl_checkborder
.fl_no20colRGB555:
.fl_noSMS:
tst r12, #1 @ h32?
movne r2, #320/8 @ len = 320
bne .fl_no32colRGB555
moveq r2, #256/8 @ len = 256
bne .fl_40colRGB555
mov r2, #256/8 @ len = 256
.fl_check32scaling:
tst r4, #0x4000 @ EN_SOFTSCALE?
rsbne r7, r2, #256/8
addne r0, r0, r7, lsl #3 @ pd += (256-len)>>1
bne .fl_32scale_RGB555 @ scale 256->320
.fl_checkborder:
tst r4, #0x0100 @ DIS_32C_BORDER?
rsbeq r4, r2, #320/8 @ pd += (320-len)/2
addeq r0, r0, r4, lsl #3
rsbeq r7, r2, #320/8 @ pd += (320-len)/2
addeq r0, r0, r7, lsl #3
.fl_no32colRGB555:
.fl_40colRGB555:
#ifdef UNALIGNED_DRAWLINEDEST
@ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer
tst r0, #2
@ -2250,24 +2263,51 @@ blockcpy:
cmp r0, r1
bhs blockcpyhi
mov r2, r2, lsr #4
subs r2, r2, #16
blt blockcpy2
blockcpy_loop:
ldmia r1!, {r3-r5,r12}
subs r2, r2, #1
subs r2, r2, #16
stmia r0!, {r3-r5,r12}
bne blockcpy_loop
bge blockcpy_loop
blockcpy2:
adds r2, r2, #16-4
ldmltfd sp!, {r4,r5}
bxlt lr
blockcpy_loop2:
ldr r3, [r1], #4
subs r2, r2, #4
str r3, [r0], #4
bge blockcpy_loop2
ldmfd sp!, {r4,r5}
bx lr
blockcpyhi:
add r0, r0, r2
add r1, r1, r2
mov r2, r2, lsr #4
subs r2, r2, #16
blt blockcpyhi2
blockcpyhi_loop:
ldmdb r1!, {r3-r5,r12}
subs r2, r2, #1
subs r2, r2, #16
stmdb r0!, {r3-r5,r12}
bne blockcpyhi_loop
bge blockcpyhi_loop
blockcpyhi2:
adds r2, r2, #16-4
ldmltfd sp!, {r4,r5}
bxlt lr
blockcpyhi_loop2:
ldr r3, [r1, #-4]!
subs r2, r2, #4
str r3, [r0, #-4]!
bge blockcpyhi_loop2
ldmfd sp!, {r4,r5}
bx lr
@ -2281,32 +2321,61 @@ blockcpy_or:
cmp r0, r1
bhs blockcpyhi_or
mov r2, r2, lsr #4
subs r2, r2, #16
blt blockcpy_or2
blockcpy_loop_or:
ldmia r1!, {r4-r6,r12}
subs r2, r2, #1
subs r2, r2, #16
orr r4, r4, r3
orr r5, r5, r3
orr r6, r6, r3
orr r12,r12,r3
stmia r0!, {r4-r6,r12}
bne blockcpy_loop_or
bge blockcpy_loop_or
blockcpy_or2:
adds r2, r2, #16-4
ldmltfd sp!, {r4-r6}
bxlt lr
blockcpy_loop_or2:
ldr r4, [r1], #4
subs r2, r2, #4
orr r4, r4, r3
str r4, [r0], #4
bge blockcpy_loop_or2
ldmfd sp!, {r4-r6}
bx lr
blockcpyhi_or:
add r0, r0, r2
add r1, r1, r2
mov r2, r2, lsr #4
subs r2, r2, #16
blt blockcpyhi_or2
blockcpyhi_loop_or:
ldmdb r1!, {r4-r6,r12}
subs r2, r2, #1
subs r2, r2, #16
orr r4, r4, r3
orr r5, r5, r3
orr r6, r6, r3
orr r12,r12,r3
stmdb r0!, {r4-r6,r12}
bne blockcpyhi_loop_or
bge blockcpyhi_loop_or
blockcpyhi_or2:
adds r2, r2, #16-4
ldmltfd sp!, {r4-r6}
bxlt lr
blockcpyhi_loop_or2:
ldr r4, [r1, #-4]!
subs r2, r2, #4
orr r4, r4, r3
str r4, [r0, #-4]!
bge blockcpyhi_loop_or2
ldmfd sp!, {r4-r6}
bx lr