129 lines
10 KiB
PHP
129 lines
10 KiB
PHP
constant VI_BASE($A440) // $04400000..$04400037 Video Interface (VI) Base Register
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constant VI_STATUS($00) // $04400000..$04400003 VI: Status/Control Register
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constant VI_ORIGIN($04) // $04400004..$04400007 VI: Origin Register
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constant VI_WIDTH($08) // $04400008..$0440000B VI: Width Register
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constant VI_V_INTR($0C) // $0440000C..$0440000F VI: Vertical Interrupt Register
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constant VI_V_CURRENT_LINE($10) // $04400010..$04400013 VI: Current Vertical Line Register
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constant VI_TIMING($14) // $04400014..$04400017 VI: Video Timing Register
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constant VI_V_SYNC($18) // $04400018..$0440001B VI: Vertical Sync Register
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constant VI_H_SYNC($1C) // $0440001C..$0440001F VI: Horizontal Sync Register
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constant VI_H_SYNC_LEAP($20) // $04400020..$04400023 VI: Horizontal Sync Leap Register
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constant VI_H_VIDEO($24) // $04400024..$04400027 VI: Horizontal Video Register
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constant VI_V_VIDEO($28) // $04400028..$0440002B VI: Vertical Video Register
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constant VI_V_BURST($2C) // $0440002C..$0440002F VI: Vertical Burst Register
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constant VI_X_SCALE($30) // $04400030..$04400033 VI: X-Scale Register
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constant VI_Y_SCALE($34) // $04400034..$04400037 VI: Y-Scale Register
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constant BPP0($0000) // VI Status/Control: Color Depth Blank (No Data Or Sync) (Bit 0..1)
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//*RESERVED*($0001) // VI Status/Control: Color Depth Reserved (Bit 0..1)
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constant BPP16($0002) // VI Status/Control: Color Depth 16BPP R5/G5/B5/A1 (Bit 0..1)
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constant BPP32($0003) // VI Status/Control: Color Depth 32BPP R8/G8/B8/A8 (Bit 0..1)
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constant GAMMA_DITHER_EN($00004) // VI Status/Control: Gamma Dither Enable (Requires: Gamma Enable) (Bit 2)
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constant GAMMA_EN($00008) // VI Status/Control: Gamma Enable (Gamma Boost For YUV Images) (Bit 3)
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constant DIVOT_EN($00010) // VI Status/Control: Divot Enable (Used With Anti-alias) (Bit 4)
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constant VBUS_CLK_EN($00020) // VI Status/Control: Video Bus Clock Enable (Bit 5)
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constant INTERLACE($00040) // VI Status/Control: Interlace/Serrate (Used With Interlaced Display) (Bit 6)
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constant TST_MODE($00080) // VI Status/Control: Test Mode (Bit 7)
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constant AA_MODE_0($00000) // VI Status/Control: AA Mode 0 = Anti-alias & Resample (Always Fetch Extra Lines) (Bit 8..9)
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constant AA_MODE_1($00100) // VI Status/Control: AA Mode 1 = Anti-alias & Resample (Fetch Extra Lines When Needed) (Bit 8..9)
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constant AA_MODE_2($00200) // VI Status/Control: AA Mode 2 = Resample Only (Bit 8..9)
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constant AA_MODE_3($00300) // VI Status/Control: AA Mode 3 = Replicate Pixels & No Interpolation (Bit 8..9)
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constant DIAG_0($00400) // VI Status/Control: Diagnotic 0 (Bit 10..11)
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constant DIAG_1($00800) // VI Status/Control: Diagnotic 1 (Bit 10..11)
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constant PIXEL_ADV_0($00000) // VI Status/Control: Pixel Advance 0 (Bit 12..15)
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constant PIXEL_ADV_1($01000) // VI Status/Control: Pixel Advance 1 (Bit 12..15)
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constant PIXEL_ADV_2($02000) // VI Status/Control: Pixel Advance 2 (Bit 12..15)
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constant PIXEL_ADV_3($03000) // VI Status/Control: Pixel Advance 3 (Bit 12..15)
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constant PIXEL_ADV_4($04000) // VI Status/Control: Pixel Advance 4 (Bit 12..15)
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constant PIXEL_ADV_5($05000) // VI Status/Control: Pixel Advance 5 (Bit 12..15)
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constant PIXEL_ADV_6($06000) // VI Status/Control: Pixel Advance 6 (Bit 12..15)
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constant PIXEL_ADV_7($07000) // VI Status/Control: Pixel Advance 7 (Bit 12..15)
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constant PIXEL_ADV_8($08000) // VI Status/Control: Pixel Advance 8 (Bit 12..15)
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constant PIXEL_ADV_9($09000) // VI Status/Control: Pixel Advance 9 (Bit 12..15)
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constant PIXEL_ADV_A($0A000) // VI Status/Control: Pixel Advance A (Bit 12..15)
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constant PIXEL_ADV_B($0B000) // VI Status/Control: Pixel Advance B (Bit 12..15)
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constant PIXEL_ADV_C($0C000) // VI Status/Control: Pixel Advance C (Bit 12..15)
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constant PIXEL_ADV_D($0D000) // VI Status/Control: Pixel Advance D (Bit 12..15)
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constant PIXEL_ADV_E($0E000) // VI Status/Control: Pixel Advance E (Bit 12..15)
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constant PIXEL_ADV_F($0F000) // VI Status/Control: Pixel Advance F (Bit 12..15)
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constant DITHER_FILTER_EN($10000) // VI Status/Control: Dither Filter Enable (Used With 16BPP Display) (Bit 16)
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constant VI_NTSC_CLOCK(48681812) // NTSC: Hz = 48.681812 MHz
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constant VI_PAL_CLOCK(49656530) // PAL: Hz = 49.656530 MHz
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constant VI_MPAL_CLOCK(48628316) // MPAL: Hz = 48.628316 MHz
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macro ScreenNTSC(width,height, status, origin) {
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lui a0,VI_BASE // A0 = VI Base Register ($A4400000)
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la t0,{origin} // T0 = Origin (Frame Buffer Origin In Bytes)
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sw t0,VI_ORIGIN(a0) // Store Origin To VI Origin Register ($A4400004)
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lli t0,{width} // T0 = Width (Frame Buffer Line Width In Pixels)
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sw t0,VI_WIDTH(a0) // Store Width To VI Width Register ($A4400008)
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lli t0,$2 // T0 = Vertical Interrupt (Interrupt When Current Half-Line $2)
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sw t0,VI_V_INTR(a0) // Store Vertical Interrupt To VI Interrupt Register ($A440000C)
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lli t0,0 // T0 = Current Vertical Line (Current Half-Line, Sampled Once Per Line = 0)
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sw t0,VI_V_CURRENT_LINE(a0) // Store Current Vertical Line To VI Current Register ($A4400010)
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li t0,$3E52239 // T0 = Video Timing (Start Of Color Burst In Pixels from H-Sync = 3, Vertical Sync Width In Half Lines = 229, Color Burst Width In Pixels = 34, Horizontal Sync Width In Pixels = 57)
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sw t0,VI_TIMING(a0) // Store Video Timing To VI Burst Register ($A4400014)
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lli t0,$20D // T0 = Vertical Sync (Number Of Half-Lines Per Field = 525)
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sw t0,VI_V_SYNC(a0) // Store Vertical Sync To VI V Sync Register ($A4400018)
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lli t0,$C15 // T0 = Horizontal Sync (5-bit Leap Pattern Used For PAL only = 0, Total Duration Of A Line In 1/4 Pixel = 3093)
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sw t0,VI_H_SYNC(a0) // Store Horizontal Sync To VI H Sync Register ($A440001C)
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li t0,$C150C15 // T0 = Horizontal Sync Leap (Identical To H Sync = 3093, Identical To H Sync = 3093)
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sw t0,VI_H_SYNC_LEAP(a0) // Store Horizontal Sync Leap To VI Leap Register ($A4400020)
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li t0,$6C02EC // T0 = Horizontal Video (Start Of Active Video In Screen Pixels = 108, End Of Active Video In Screen Pixels = 748)
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sw t0,VI_H_VIDEO(a0) // Store Horizontal Video To VI H Start Register ($A4400024)
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li t0,$2501FF // T0 = Vertical Video (Start Of Active Video In Screen Half-Lines = 37, End Of Active Video In Screen Half-Lines = 511)
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sw t0,VI_V_VIDEO(a0) // Store Vertical Video To VI V Start Register ($A4400028)
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li t0,$E0204 // T0 = Vertical Burst (Start Of Color Burst Enable In Half-Lines = 14, End Of Color Burst Enable In Half-Lines = 516)
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sw t0,VI_V_BURST(a0) // Store Vertical Burst To VI V Burst Register ($A440002C)
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lli t0,($100*({width}/160)) // T0 = X-Scale (Horizontal Subpixel Offset In 2.10 Format = 0, 1/Horizontal Scale Up Factor In 2.10 Format)
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sw t0,VI_X_SCALE(a0) // Store X-Scale To VI X Scale Register ($A4400030)
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lli t0,($100*({height}/60)) // T0 = Y-Scale (Vertical Subpixel Offset In 2.10 Format = 0, 1/Vertical Scale Up Factor In 2.10 Format)
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sw t0,VI_Y_SCALE(a0) // Store Y-Scale To VI Y Scale Register ($A4400034)
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li t0,{status} // T0 = Status/Control
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sw t0,VI_STATUS(a0) // Store Status/Control To VI Status Register ($A4400000)
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}
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macro ScreenPAL(width,height, status, origin) {
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lui a0,VI_BASE // A0 = VI Base Register ($A4400000)
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la t0,{origin} // T0 = Origin (Frame Buffer Origin In Bytes)
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sw t0,VI_ORIGIN(a0) // Store Origin To VI Origin Register ($A4400004)
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lli t0,{width} // T0 = Width (Frame Buffer Line Width In Pixels)
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sw t0,VI_WIDTH(a0) // Store Width To VI Width Register ($A4400008)
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lli t0,$2 // T0 = Vertical Interrupt (Interrupt When Current Half-Line $2)
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//lli t0,2
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sw t0,VI_V_INTR(a0) // Store Vertical Interrupt To VI Interrupt Register ($A440000C)
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lli t0,0 // T0 = Current Vertical Line (Current Half-Line, Sampled Once Per Line = 0)
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sw t0,VI_V_CURRENT_LINE(a0) // Store Current Vertical Line To VI Current Register ($A4400010)
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li t0,$404233A // T0 = Video Timing (Start Of Color Burst In Pixels from H-Sync = 4, Vertical Sync Width In Half Lines = 04, Color Burst Width In Pixels = 35, Horizontal Sync Width In Pixels = 58)
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sw t0,VI_TIMING(a0) // Store Video Timing To VI Burst Register ($A4400014)
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lli t0,$271 // T0 = Vertical Sync (Number Of Half-Lines Per Field = 625)
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sw t0,VI_V_SYNC(a0) // Store Vertical Sync To VI V Sync Register ($A4400018)
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li t0,$150C69 // T0 = Horizontal Sync (5-bit Leap Pattern Used For PAL only = 21: %10101, Total Duration Of A Line In 1/4 Pixel = 3177)
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sw t0,VI_H_SYNC(a0) // Store Horizontal Sync To VI H Sync Register ($A440001C)
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li t0,$C6F0C6E // T0 = Horizontal Sync Leap (Identical To H Sync = 3183, Identical To H Sync = 3182)
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sw t0,VI_H_SYNC_LEAP(a0) // Store Horizontal Sync Leap To VI Leap Register ($A4400020)
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li t0,$800300 // T0 = Horizontal Video (Start Of Active Video In Screen Pixels = 128, End Of Active Video In Screen Pixels = 768)
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sw t0,VI_H_VIDEO(a0) // Store Horizontal Video To VI H Start Register ($A4400024)
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li t0,$5F0239 // T0 = Vertical Video (Start Of Active Video In Screen Half-Lines = 95, End Of Active Video In Screen Half-Lines = 569)
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sw t0,VI_V_VIDEO(a0) // Store Vertical Video To VI V Start Register ($A4400028)
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li t0,$9026B // T0 = Vertical Burst (Start Of Color Burst Enable In Half-Lines = 9, End Of Color Burst Enable In Half-Lines = 619)
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sw t0,VI_V_BURST(a0) // Store Vertical Burst To VI V Burst Register ($A440002C)
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lli t0,($100*({width}/160)) // T0 = X-Scale (Horizontal Subpixel Offset In 2.10 Format = 0, 1/Horizontal Scale Up Factor In 2.10 Format)
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sw t0,VI_X_SCALE(a0) // Store X-Scale To VI X Scale Register ($A4400030)
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lli t0,($100*({height}/60)) // T0 = Y-Scale (Vertical Subpixel Offset In 2.10 Format = 0, 1/Vertical Scale Up Factor In 2.10 Format)
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sw t0,VI_Y_SCALE(a0) // Store Y-Scale To VI Y Scale Register ($A4400034)
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li t0,{status} // T0 = Status/Control
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sw t0,VI_STATUS(a0) // Store Status/Control To VI Status Register ($A4400000)
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}
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macro WaitScanline(scanline) { // Wait For RDP To Reach Scanline
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lui a0,VI_BASE // A0 = VI Base Register ($A4400000)
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lli t0,{scanline} // T0 = Scan Line
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-
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lw t1,VI_V_CURRENT_LINE(a0) // T1 = Current Scan Line
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bne t1,t0,- // IF (Current Scan Line != Scan Line) Wait
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nop // ELSE Continue (Delay Slot)
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}
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