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https://github.com/RaySollium99/picodrive.git
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renderer patch for DBZ - Buyuu Retsuden
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@240 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
7969166ef6
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2 changed files with 130 additions and 60 deletions
120
Pico/Draw.s
120
Pico/Draw.s
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@ -69,7 +69,7 @@
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streqb r4, [r1,#\offs]
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.endm
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@ TileNorm (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits
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@ TileNormShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits
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.macro TileNormShHP
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TilePixelShHP 12, 0 @ #0x0000f000
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TilePixelShHP 8, 1 @ #0x00000f00
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@ -81,7 +81,7 @@
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TilePixelShHP 16, 7 @ #0x000f0000
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.endm
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@ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf
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@ TileFlipShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf
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.macro TileFlipShHP
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TilePixelShHP 16, 0 @ #0x000f0000
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TilePixelShHP 20, 1 @ #0x00f00000
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@ -364,16 +364,17 @@ DrawLayer:
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beq .DrawStrip_SingleColor @ tileline singlecolor
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tst r9, #0x0800
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beq .DrawStrip_TileNorm
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bne .DrawStrip_TileFlip
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern
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TileFlip r0
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b .dsloop
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.DrawStrip_TileNorm:
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TileNorm r0
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b .dsloop
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.DrawStrip_TileFlip:
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TileFlip r0
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b .dsloop
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.DrawStrip_SingleColor:
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and r4, r2, #0xf
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orr r4, r3, r4
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@ -527,16 +528,17 @@ DrawLayer:
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beq .DrawStrip_vs_SingleColor @ tileline singlecolor
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tst r9, #0x0800
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beq .DrawStrip_vs_TileNorm
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bne .DrawStrip_vs_TileFlip
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern
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TileFlip r0
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b .dsloop_vs
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.DrawStrip_vs_TileNorm:
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TileNorm r0
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b .dsloop_vs
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.DrawStrip_vs_TileFlip:
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TileFlip r0
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b .dsloop_vs
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.DrawStrip_vs_SingleColor:
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and r4, r2, #0xf
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orr r4, r3, r4
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@ -663,7 +665,7 @@ BackFill:
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@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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.global DrawTilesFromCache @ int *hc, int sh
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.global DrawTilesFromCache @ int *hc, int sh, int rlim
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DrawTilesFromCache:
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stmfd sp!, {r4-r8,r11,lr}
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@ -674,7 +676,8 @@ DrawTilesFromCache:
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mov r12,#0xf
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mvn r5, #0 @ r5=prevcode=-1
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movs r8, r1
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ands r8, r1, #1
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orr r8, r8, r2, lsl #1
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bne .dtfc_check_rendflags
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@ scratch: r4, r7
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@ -682,8 +685,8 @@ DrawTilesFromCache:
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ldr r6, [r0], #4 @ read code
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movs r1, r6, lsr #16 @ r1=dx;
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ldmeqfd sp!, {r4-r8,r11,pc} @ dx is never zero, this must be a terminator, return
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bic r1, r1, #0xfe00
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add r1, r11, r1 @ r1=pdest
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bic r4, r1, #0xfe00
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add r1, r11, r4 @ r1=pdest
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mov r7, r6, lsl #16
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cmp r5, r7, lsr #16
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@ -701,7 +704,10 @@ DrawTilesFromCache:
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ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels
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.dtfc_samecode:
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tst r8, r8
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rsbs r4, r4, r8, lsr #1
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bmi .dtfc_cut_tile
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tst r8, #1
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bne .dtfc_shadow
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tst r2, r2
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@ -711,16 +717,17 @@ DrawTilesFromCache:
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beq .dtfc_SingleColor @ tileline singlecolor
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tst r5, #0x0800
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beq .dtfc_TileNorm
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bne .dtfc_TileFlip
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern
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TileFlip r12
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b .dtfc_loop
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.dtfc_TileNorm:
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TileNorm r12
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b .dtfc_loop
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.dtfc_TileFlip:
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TileFlip r12
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b .dtfc_loop
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.dtfc_SingleColor:
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and r4, r2, #0xf
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orr r4, r3, r4
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@ -742,16 +749,17 @@ DrawTilesFromCache:
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beq .dtfc_SingleColor @ tileline singlecolor
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tst r5, #0x0800
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beq .dtfc_TileNormShHP
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bne .dtfc_TileFlipShHP
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern
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TileFlipShHP
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b .dtfc_loop
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.dtfc_TileNormShHP:
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TileNormShHP
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b .dtfc_loop
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.dtfc_TileFlipShHP:
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TileFlipShHP
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b .dtfc_loop
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.dtfc_shadow_blank:
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ldrb r4, [r1] @ 1ci
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ldrb r12,[r1,#1]
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@ -788,13 +796,32 @@ DrawTilesFromCache:
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mov r12, #0xf
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b .dtfc_loop
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.dtfc_cut_tile:
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add r4, r4, #7 @ 0-6
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mov r4, r4, lsl #2
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mov r12,#0xf<<28
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mov r12,r12,asr r4
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mov r2, r2, ror #16
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tst r5, #0x0800 @ flipped?
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mvnne r12,r12
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and r2, r2, r12
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mov r2, r2, ror #16
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mov r12,#0xf
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tst r8, #1
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bne .dtfc_shadow
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tst r2, r2
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beq .dtfc_loop
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tst r5, #0x0800
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beq .dtfc_TileNorm
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b .dtfc_TileFlip
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@ check if we have detected layer covered with hi-prio tiles:
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.dtfc_check_rendflags:
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ldr r1, =rendstatus
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ldr r2, [r1]
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tst r2, #0xc0
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beq .dtfc_loop
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mov r8, #0 @ sh/hi mode off
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bic r8, r8, #1 @ sh/hi mode off
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tst r2, #0x80
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bne .dtfc_loop @ already processed
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orr r2, r2, #0x80
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@ -903,16 +930,17 @@ DrawSpritesFromCache:
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beq .dsfc_SingleColor @ tileline singlecolor
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tst r9, #0x10000
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beq .dsfc_TileNorm
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bne .dsfc_TileFlip
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@ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern
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TileFlip r12
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b .dsfc_inloop
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.dsfc_TileNorm:
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TileNorm r12
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b .dsfc_inloop
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.dsfc_TileFlip:
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TileFlip r12
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b .dsfc_inloop
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.dsfc_SingleColor:
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tst r0, #1 @ not aligned?
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and r4, r2, #0xf
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@ -931,16 +959,17 @@ DrawSpritesFromCache:
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beq .dsfc_singlec_sh
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tst r9, #0x10000
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beq .dsfc_TileNorm_sh
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bne .dsfc_TileFlip_sh
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern
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TileFlipSh
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b .dsfc_inloop
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.dsfc_TileNorm_sh:
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TileNormSh
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b .dsfc_inloop
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.dsfc_TileFlip_sh:
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TileFlipSh
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b .dsfc_inloop
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.dsfc_singlec_sh:
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cmp r2, #0xe0000000
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bcc .dsfc_SingleColor @ normal singlecolor tileline (carry inverted in ARM)
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@ -1047,17 +1076,18 @@ DrawSprite:
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beq .dspr_SingleColor @ tileline singlecolor
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tst r9, #0x0800
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beq .dspr_TileNorm
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bne .dspr_TileFlip
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern
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TileFlip r12
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b .dspr_loop
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@ scratch: r4, r7
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.dspr_TileNorm:
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TileNorm r12
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b .dspr_loop
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.dspr_TileFlip:
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TileFlip r12
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b .dspr_loop
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.dspr_SingleColor:
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and r4, r2, #0xf
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orr r4, r3, r4
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@ -1076,16 +1106,17 @@ DrawSprite:
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beq .dspr_singlec_sh
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tst r9, #0x0800
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beq .dspr_TileNorm_sh
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bne .dspr_TileFlip_sh
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern
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TileFlipSh
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b .dspr_loop
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.dspr_TileNorm_sh:
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TileNormSh
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b .dspr_loop
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.dspr_TileFlip_sh:
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TileFlipSh
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b .dspr_loop
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.dspr_singlec_sh:
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cmp r2, #0xe0000000
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bcc .dspr_SingleColor @ normal tileline
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@ -1213,16 +1244,17 @@ DrawWindow:
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beq .dw_SingleColor @ tileline singlecolor
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tst r9, #0x0800
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beq .dw_TileNorm
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bne .dw_TileFlip
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@ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern
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TileFlip r0
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b .dwloop
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.dw_TileNorm:
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TileNorm r0
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b .dwloop
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.dw_TileFlip:
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TileFlip r0
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b .dwloop
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.dw_SingleColor:
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and r4, r0, r2 @ #0x0000000f
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orr r4, r3, r4
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