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https://github.com/lscharen/iigs-game-engine.git
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Simplify all of the remaining tile blitters
This commit is contained in:
Lucas Scharenbroich
parent
cd5de05d74
commit
76801c0e5e
@ -5,40 +5,26 @@
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; there is no way to do everything inline, so a composite tile is created on the fly and written to
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; a direct page buffer. This direct page buffer is then used to render the tile.
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_TBSolidSpriteTile_00
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_TBSolidSpriteTile_0H
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jsr _TBCopyTileDataToCBuff ; Copy the tile into the compositing buffer (using correct x-register)
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jsr _TBApplySpriteData ; Overlay the data from the sprite plane (and copy into the code field)
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jmp _TBFillPEAOpcode ; Fill in the code field opcodes
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_TBSolidSpriteTile_0H
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jsr _TBCopyTileDataToCBuffH
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jsr _TBApplySpriteData
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jmp _TBFillPEAOpcode
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_TBSolidSpriteTile_V0
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jsr _TBCopyTileDataToCBuffV
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jsr _TBApplySpriteData
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jmp _TBFillPEAOpcode
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_TBSolidSpriteTile_VH
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jsr _TBCopyTileDataToCBuffVH
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jsr _TBCopyTileDataToCBuffV
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jsr _TBApplySpriteData
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jmp _TBFillPEAOpcode
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; Fast variation that does not need to set the opcode
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_TBFastSpriteTile_00
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_TBFastSpriteTile_0H
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jsr _TBCopyTileDataToCBuff ; Copy the tile into the compositing buffer
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jmp _TBApplySpriteData ; Overlay the data form the sprite plane (and copy into the code field)
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_TBFastSpriteTile_0H
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jsr _TBCopyTileDataToCBuffH
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jmp _TBApplySpriteData
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_TBFastSpriteTile_V0
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jsr _TBCopyTileDataToCBuffV
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jmp _TBApplySpriteData
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_TBFastSpriteTile_VH
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jsr _TBCopyTileDataToCBuffVH
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jsr _TBCopyTileDataToCBuffV
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jmp _TBApplySpriteData
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; Need to update the X-register before calling this
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@ -78,17 +64,17 @@ _TBCopyTileDataToCBuff
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--^
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rts
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_TBCopyTileDataToCBuffH
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]line equ 0
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lup 8
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ldal tiledata+{]line*4}+64,x
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sta blttmp+{]line*4}
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ldal tiledata+{]line*4}+64+2,x
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sta blttmp+{]line*4}+2
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]line equ ]line+1
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--^
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rts
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;_TBCopyTileDataToCBuffH
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;]line equ 0
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; lup 8
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; ldal tiledata+{]line*4}+64,x
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; sta blttmp+{]line*4}
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;
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; ldal tiledata+{]line*4}+64+2,x
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; sta blttmp+{]line*4}+2
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;]line equ ]line+1
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; --^
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; rts
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_TBCopyTileDataToCBuffV
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]src equ 7
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@ -104,19 +90,19 @@ _TBCopyTileDataToCBuffV
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--^
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rts
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_TBCopyTileDataToCBuffVH
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]src equ 7
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]dest equ 0
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lup 8
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ldal tiledata+{]src*4}+64,x
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sta blttmp+{]dest*4}
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ldal tiledata+{]src*4}+64+2,x
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sta blttmp+{]dest*4}+2
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]src equ ]src-1
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]dest equ ]dest+1
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--^
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rts
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;_TBCopyTileDataToCBuffVH
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;]src equ 7
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;]dest equ 0
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; lup 8
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; ldal tiledata+{]src*4}+64,x
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; sta blttmp+{]dest*4}
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;
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; ldal tiledata+{]src*4}+64+2,x
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; sta blttmp+{]dest*4}+2
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;]src equ ]src-1
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;]dest equ ]dest+1
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; --^
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; rts
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; Copy tile mask data into the direct page compositing buffer.
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@ -132,17 +118,17 @@ _TBCopyTileMaskToCBuff
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--^
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rts
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_TBCopyTileMaskToCBuffH
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]line equ 0
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lup 8
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ldal tiledata+{]line*4}+32+64,x
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sta blttmp+{]line*4}+32
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ldal tiledata+{]line*4}+32+64+2,x
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sta blttmp+{]line*4}+32+2
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]line equ ]line+1
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--^
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rts
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;_TBCopyTileMaskToCBuffH
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;]line equ 0
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; lup 8
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; ldal tiledata+{]line*4}+32+64,x
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; sta blttmp+{]line*4}+32
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;
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; ldal tiledata+{]line*4}+32+64+2,x
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; sta blttmp+{]line*4}+32+2
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;]line equ ]line+1
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; --^
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; rts
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_TBCopyTileMaskToCBuffV
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]src equ 7
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@ -158,19 +144,19 @@ _TBCopyTileMaskToCBuffV
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--^
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rts
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_TBCopyTileMaskToCBuffVH
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]src equ 7
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]dest equ 0
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lup 8
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ldal tiledata+{]src*4}+32+64,x
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sta blttmp+{]dest*4}+32
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ldal tiledata+{]src*4}+32+64+2,x
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sta blttmp+{]dest*4}+32+2
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]src equ ]src-1
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]dest equ ]dest+1
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--^
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rts
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;_TBCopyTileMaskToCBuffVH
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;]src equ 7
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;]dest equ 0
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; lup 8
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; ldal tiledata+{]src*4}+32+64,x
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; sta blttmp+{]dest*4}+32
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;
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; ldal tiledata+{]src*4}+32+64+2,x
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; sta blttmp+{]dest*4}+32+2
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;]src equ ]src-1
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;]dest equ ]dest+1
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; --^
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; rts
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; Copy just the data into the code field from the composite buffer
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@ -2,6 +2,7 @@
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;
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; Renders a composited tile with masking to the code field.
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_TBMaskedSpriteTile_00
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_TBMaskedSpriteTile_0H
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sta _X_REG ; Immedately stash the parameters
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sty _Y_REG
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@ -10,15 +11,16 @@ _TBMaskedSpriteTile_00
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jsr _TBMergeSpriteDataAndMask ; Overlay the data and mask from the sprite plane into the compositing buffer
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jmp _TBMaskedCBuff ; Render the masked tile from the compositing buffer into the code field
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_TBMaskedSpriteTile_0H
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sta _X_REG
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sty _Y_REG
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jsr _TBCopyTileDataToCBuffH
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jsr _TBCopyTileMaskToCBuffH
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jsr _TBMergeSpriteDataAndMask
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jmp _TBMaskedCBuff
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;_TBMaskedSpriteTile_0H
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; sta _X_REG
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; sty _Y_REG
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; jsr _TBCopyTileDataToCBuffH
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; jsr _TBCopyTileMaskToCBuffH
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; jsr _TBMergeSpriteDataAndMask
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; jmp _TBMaskedCBuff
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_TBMaskedSpriteTile_V0
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_TBMaskedSpriteTile_VH
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sta _X_REG
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sty _Y_REG
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jsr _TBCopyTileDataToCBuffV
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@ -26,13 +28,13 @@ _TBMaskedSpriteTile_V0
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jsr _TBMergeSpriteDataAndMask
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jmp _TBMaskedCBuff
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_TBMaskedSpriteTile_VH
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sta _X_REG
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sty _Y_REG
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jsr _TBCopyTileDataToCBuffVH
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jsr _TBCopyTileMaskToCBuffVH
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jsr _TBMergeSpriteDataAndMask
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jmp _TBMaskedCBuff
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;_TBMaskedSpriteTile_VH
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; sta _X_REG
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; sty _Y_REG
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; jsr _TBCopyTileDataToCBuffVH
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; jsr _TBCopyTileMaskToCBuffVH
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; jsr _TBMergeSpriteDataAndMask
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; jmp _TBMaskedCBuff
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_TBMergeSpriteDataAndMask
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ldx _SPR_X_REG ; set to the unaligned tile block address in the sprite plane
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@ -3,28 +3,30 @@
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; When the sprite is composited with the tile data, the tile mask is used to place the tile data on top of
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; any sprite data
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_TBSolidPrioritySpriteTile_00
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_TBSolidPrioritySpriteTile_0H
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jsr _TBCopyTileDataToCBuff ; Copy the tile data into the compositing buffer (using correct x-register)
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jsr _TBCopyTileMaskToCBuff ; Copy the tile mask into the compositing buffer (using correct x-register)
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jsr _TBApplyPrioritySpriteData ; Underlay the data fromthe sprite plane (and copy into the code field)
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jmp _TBFillPEAOpcode ; Fill in the code field opcodes
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_TBSolidPrioritySpriteTile_0H
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jsr _TBCopyTileDataToCBuffH
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jsr _TBCopyTileMaskToCBuffH
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jsr _TBApplyPrioritySpriteData
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jmp _TBFillPEAOpcode
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;_TBSolidPrioritySpriteTile_0H
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; jsr _TBCopyTileDataToCBuffH
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; jsr _TBCopyTileMaskToCBuffH
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; jsr _TBApplyPrioritySpriteData
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; jmp _TBFillPEAOpcode
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_TBSolidPrioritySpriteTile_V0
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_TBSolidPrioritySpriteTile_VH
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jsr _TBCopyTileDataToCBuffV
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jsr _TBCopyTileMaskToCBuffV
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jsr _TBApplyPrioritySpriteData
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jmp _TBFillPEAOpcode
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_TBSolidPrioritySpriteTile_VH
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jsr _TBCopyTileDataToCBuffVH
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jsr _TBCopyTileMaskToCBuffVH
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jsr _TBApplyPrioritySpriteData
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jmp _TBFillPEAOpcode
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;_TBSolidPrioritySpriteTile_VH
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; jsr _TBCopyTileDataToCBuffVH
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; jsr _TBCopyTileMaskToCBuffVH
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; jsr _TBApplyPrioritySpriteData
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; jmp _TBFillPEAOpcode
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; Need to update the X-register before calling this
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_TBApplyPrioritySpriteData
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@ -2,6 +2,7 @@
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;
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; Renders a composited tile with masking to the code field. The sprite is underlaid
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_TBMaskedPrioritySpriteTile_00
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_TBMaskedPrioritySpriteTile_0H
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sta _X_REG ; Immedately stash the parameters
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sty _Y_REG
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@ -10,15 +11,16 @@ _TBMaskedPrioritySpriteTile_00
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jsr _TBUnderlaySpriteDataAndMask ; Underlay the data and mask from the sprite plane into the compositing buffer
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jmp _TBMaskedCBuff ; Render the masked tile from the compositing buffer into the code field
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_TBMaskedPrioritySpriteTile_0H
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sta _X_REG
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sty _Y_REG
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jsr _TBCopyTileDataToCBuffH
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jsr _TBCopyTileMaskToCBuffH
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jsr _TBUnderlaySpriteDataAndMask
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jmp _TBMaskedCBuff
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;_TBMaskedPrioritySpriteTile_0H
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; sta _X_REG
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; sty _Y_REG
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; jsr _TBCopyTileDataToCBuffH
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; jsr _TBCopyTileMaskToCBuffH
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; jsr _TBUnderlaySpriteDataAndMask
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; jmp _TBMaskedCBuff
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_TBMaskedPrioritySpriteTile_V0
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_TBMaskedPrioritySpriteTile_VH
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sta _X_REG
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sty _Y_REG
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jsr _TBCopyTileDataToCBuffV
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@ -26,13 +28,13 @@ _TBMaskedPrioritySpriteTile_V0
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jsr _TBUnderlaySpriteDataAndMask
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jmp _TBMaskedCBuff
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_TBMaskedPrioritySpriteTile_VH
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sta _X_REG
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sty _Y_REG
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jsr _TBCopyTileDataToCBuffVH
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jsr _TBCopyTileMaskToCBuffVH
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jsr _TBUnderlaySpriteDataAndMask
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jmp _TBMaskedCBuff
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;_TBMaskedPrioritySpriteTile_VH
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; sta _X_REG
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; sty _Y_REG
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; jsr _TBCopyTileDataToCBuffVH
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; jsr _TBCopyTileMaskToCBuffVH
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; jsr _TBUnderlaySpriteDataAndMask
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; jmp _TBMaskedCBuff
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_TBUnderlaySpriteDataAndMask
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ldx _SPR_X_REG ; set to the unaligned tile block address in the sprite plane
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