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-/*******************************************************************************
- Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
- (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
- Jerremy Koot (jkoot@snes9x.com)
-
- (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
-
- (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
- funkyass (funkyass@spam.shaw.ca),
- Joel Yliluoma (http://iki.fi/bisqwit/)
- Kris Bleakley (codeviolation@hotmail.com),
- Matthew Kendora,
- Nach (n-a-c-h@users.sourceforge.net),
- Peter Bortas (peter@bortas.org) and
- zones (kasumitokoduck@yahoo.com)
-
- C4 x86 assembler and some C emulation code
- (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
- _Demo_ (_demo_@zsnes.com), and Nach
-
- C4 C++ code
- (c) Copyright 2003 Brad Jorsch
-
- DSP-1 emulator code
- (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
- John Weidman, neviksti (neviksti@hotmail.com),
- Kris Bleakley, Andreas Naive
-
- DSP-2 emulator code
- (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
- Lord Nightmare (lord_nightmare@users.sourceforge.net
-
- OBC1 emulator code
- (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
- Kris Bleakley
- Ported from x86 assembler to C by sanmaiwashi
-
- SPC7110 and RTC C++ emulator code
- (c) Copyright 2002 Matthew Kendora with research by
- zsKnight, John Weidman, and Dark Force
-
- S-DD1 C emulator code
- (c) Copyright 2003 Brad Jorsch with research by
- Andreas Naive and John Weidman
-
- S-RTC C emulator code
- (c) Copyright 2001 John Weidman
-
- ST010 C++ emulator code
- (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
-
- Super FX x86 assembler emulator code
- (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
-
- Super FX C emulator code
- (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
-
-
- SH assembler code partly based on x86 assembler code
- (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
-
-
- Specific ports contains the works of other authors. See headers in
- individual files.
-
- Snes9x homepage: http://www.snes9x.com
-
- Permission to use, copy, modify and distribute Snes9x in both binary and
- source form, for non-commercial purposes, is hereby granted without fee,
- providing that this license information and copyright notice appear with
- all copies and any derived work.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event shall the authors be held liable for any damages
- arising from the use of this software.
-
- Snes9x is freeware for PERSONAL USE only. Commercial users should
- seek permission of the copyright holders first. Commercial use includes
- charging money for Snes9x or software derived from Snes9x.
-
- The copyright holders request that bug fixes and improvements to the code
- should be forwarded to them so everyone can benefit from the modifications
- in future versions.
-
- Super NES and Super Nintendo Entertainment System are trademarks of
- Nintendo Co., Limited and its subsidiary companies.
-*******************************************************************************/
-#include "snes9x.h"
-
-#include "memmap.h"
-#include "ppu.h"
-#include "display.h"
-#include "gfx.h"
-#include "tile.h"
-
-extern uint32 HeadMask [4];
-extern uint32 TailMask [5];
-
-static uint8 ConvertTile (uint8 *pCache, uint32 TileAddr)
-{
- register uint8 *tp = &Memory.VRAM[TileAddr];
- uint32 *p = (uint32 *) pCache;
- uint32 non_zero = 0;
- uint8 line;
-
- switch (BG.BitShift)
- {
- case 8:
- for (line = 8; line != 0; line--, tp += 2)
- {
- uint32 p1 = 0;
- uint32 p2 = 0;
- register uint8 pix;
-
- if ((pix = *(tp + 0)))
- {
- p1 |= odd_high[0][pix >> 4];
- p2 |= odd_low[0][pix & 0xf];
- }
- if ((pix = *(tp + 1)))
- {
- p1 |= even_high[0][pix >> 4];
- p2 |= even_low[0][pix & 0xf];
- }
- if ((pix = *(tp + 16)))
- {
- p1 |= odd_high[1][pix >> 4];
- p2 |= odd_low[1][pix & 0xf];
- }
- if ((pix = *(tp + 17)))
- {
- p1 |= even_high[1][pix >> 4];
- p2 |= even_low[1][pix & 0xf];
- }
- if ((pix = *(tp + 32)))
- {
- p1 |= odd_high[2][pix >> 4];
- p2 |= odd_low[2][pix & 0xf];
- }
- if ((pix = *(tp + 33)))
- {
- p1 |= even_high[2][pix >> 4];
- p2 |= even_low[2][pix & 0xf];
- }
- if ((pix = *(tp + 48)))
- {
- p1 |= odd_high[3][pix >> 4];
- p2 |= odd_low[3][pix & 0xf];
- }
- if ((pix = *(tp + 49)))
- {
- p1 |= even_high[3][pix >> 4];
- p2 |= even_low[3][pix & 0xf];
- }
- *p++ = p1;
- *p++ = p2;
- non_zero |= p1 | p2;
- }
- break;
-
- case 4:
- for (line = 8; line != 0; line--, tp += 2)
- {
- uint32 p1 = 0;
- uint32 p2 = 0;
- register uint8 pix;
- if ((pix = *(tp + 0)))
- {
- p1 |= odd_high[0][pix >> 4];
- p2 |= odd_low[0][pix & 0xf];
- }
- if ((pix = *(tp + 1)))
- {
- p1 |= even_high[0][pix >> 4];
- p2 |= even_low[0][pix & 0xf];
- }
- if ((pix = *(tp + 16)))
- {
- p1 |= odd_high[1][pix >> 4];
- p2 |= odd_low[1][pix & 0xf];
- }
- if ((pix = *(tp + 17)))
- {
- p1 |= even_high[1][pix >> 4];
- p2 |= even_low[1][pix & 0xf];
- }
- *p++ = p1;
- *p++ = p2;
- non_zero |= p1 | p2;
- }
- break;
-
- case 2:
- for (line = 8; line != 0; line--, tp += 2)
- {
- uint32 p1 = 0;
- uint32 p2 = 0;
- register uint8 pix;
- if ((pix = *(tp + 0)))
- {
- p1 |= odd_high[0][pix >> 4];
- p2 |= odd_low[0][pix & 0xf];
- }
- if ((pix = *(tp + 1)))
- {
- p1 |= even_high[0][pix >> 4];
- p2 |= even_low[0][pix & 0xf];
- }
- *p++ = p1;
- *p++ = p2;
- non_zero |= p1 | p2;
- }
- break;
- }
- return (non_zero ? TRUE : BLANK_TILE);
-}
-#define PLOT_PIXEL(screen, pixel) (pixel)
-
-
-static void WRITE_4PIXELS16 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- Screen [N] = ScreenColors [Pixel];
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- Screen [N] = ScreenColors [Pixel];
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_HALFWIDTH (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N += 2)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- Screen [N >> 1] = ScreenColors [Pixel];
- Depth [N >> 1] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_HALFWIDTH (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N += 2)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[2 - N]))
- {
- Screen [N >> 1] = ScreenColors [Pixel];
- Depth [N >> 1] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16x2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- Screen [N * 2] = Screen [N * 2 + 1] = ScreenColors [Pixel];
- Depth [N * 2] = Depth [N * 2 + 1] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPEDx2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- Screen [N * 2] = Screen [N * 2 + 1] = ScreenColors [Pixel];
- Depth [N * 2] = Depth [N * 2 + 1] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16x2x2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- Screen [N * 2] = Screen [N * 2 + 1] = Screen [(GFX.RealPitch >> 1) + N * 2] = Screen [(GFX.RealPitch >> 1) + N * 2 + 1] = ScreenColors [Pixel];
- Depth [N * 2] = Depth [N * 2 + 1] = Depth [(GFX.RealPitch >> 1) + N * 2] = Depth [(GFX.RealPitch >> 1) + N * 2 + 1] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPEDx2x2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- Screen [N * 2] = Screen [N * 2 + 1] = Screen [(GFX.RealPitch >> 1) + N * 2] = Screen [(GFX.RealPitch >> 1) + N * 2 + 1] = ScreenColors [Pixel];
- Depth [N * 2] = Depth [N * 2 + 1] = Depth [(GFX.RealPitch >> 1) + N * 2] = Depth [(GFX.RealPitch >> 1) + N * 2 + 1] = GFX.Z2;
- }
- }
-}
-
-void DrawTile16 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16, WRITE_4PIXELS16_FLIPPED, 4)
-}
-
-void DrawClippedTile16 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16, WRITE_4PIXELS16_FLIPPED, 4)
-}
-
-void DrawTile16HalfWidth (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16_HALFWIDTH, WRITE_4PIXELS16_FLIPPED_HALFWIDTH, 2)
-}
-
-void DrawClippedTile16HalfWidth (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_HALFWIDTH, WRITE_4PIXELS16_FLIPPED_HALFWIDTH, 2)
-}
-
-void DrawTile16x2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16x2, WRITE_4PIXELS16_FLIPPEDx2, 8)
-}
-
-void DrawClippedTile16x2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16x2, WRITE_4PIXELS16_FLIPPEDx2, 8)
-}
-
-void DrawTile16x2x2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16x2x2, WRITE_4PIXELS16_FLIPPEDx2x2, 8)
-}
-
-void DrawClippedTile16x2x2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16x2x2, WRITE_4PIXELS16_FLIPPEDx2x2, 8)
-}
-
-void DrawLargePixel16 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
-
- register uint16 *sp = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
- uint16 pixel;
-
- RENDER_TILE_LARGE (ScreenColors [pixel], PLOT_PIXEL)
-}
-
-void DrawLargePixel16HalfWidth (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
-
- register uint16 *sp = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.DB + Offset;
- uint16 pixel;
-
- RENDER_TILE_LARGE_HALFWIDTH (ScreenColors [pixel], PLOT_PIXEL)
-}
-
-static void WRITE_4PIXELS16_ADD (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_ADD (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_ADD1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]));
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_ADD1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]));
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_SUB (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_SUB (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_SUB1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_SUB1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint8 N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-
-void DrawTile16Add (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- switch (Tile & (V_FLIP | H_FLIP))
- {
- case 0:
- bp = pCache + StartLine;
- for (l = LineCount; l != 0; l--, bp += 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
- {
- for (uint8 N = 0; N < 8; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = bp[N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
- }
- break;
- case H_FLIP:
- bp = pCache + StartLine;
- for (l = LineCount; l != 0; l--, bp += 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
- {
- for (uint8 N = 0; N < 8; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = bp[7 - N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
- }
- break;
- case H_FLIP | V_FLIP:
- bp = pCache + 56 - StartLine;
- for (l = LineCount; l != 0; l--, bp -= 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
- {
- for (uint8 N = 0; N < 8; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = bp[7 - N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
- }
- break;
- case V_FLIP:
- bp = pCache + 56 - StartLine;
- for (l = LineCount; l != 0; l--, bp -= 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
- {
- for (uint8 N = 0; N < 8; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = bp[N]))
- {
- switch (SubDepth [N])
- {
- case 0:
- Screen [N] = ScreenColors [Pixel];
- break;
- case 1:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
- break;
- default:
- Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
- break;
- }
- Depth [N] = GFX.Z2;
- }
- }
- }
- break;
- default:
- break;
- }
-}
-
-void DrawClippedTile16Add (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_ADD, WRITE_4PIXELS16_FLIPPED_ADD, 4)
-}
-
-void DrawTile16Add1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16_ADD1_2, WRITE_4PIXELS16_FLIPPED_ADD1_2, 4)
-}
-
-void DrawClippedTile16Add1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_ADD1_2, WRITE_4PIXELS16_FLIPPED_ADD1_2, 4)
-}
-
-void DrawTile16Sub (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16_SUB, WRITE_4PIXELS16_FLIPPED_SUB, 4)
-}
-
-void DrawClippedTile16Sub (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_SUB, WRITE_4PIXELS16_FLIPPED_SUB, 4)
-}
-
-void DrawTile16Sub1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16_SUB1_2, WRITE_4PIXELS16_FLIPPED_SUB1_2, 4)
-}
-
-void DrawClippedTile16Sub1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_SUB1_2, WRITE_4PIXELS16_FLIPPED_SUB1_2, 4)
-}
-
-static void WRITE_4PIXELS16_ADDF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- if (SubDepth [N] == 1)
- Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], GFX.FixedColour));
- else
- Screen [N] = ScreenColors [Pixel];
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_ADDF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- if (SubDepth [N] == 1)
- Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], GFX.FixedColour));
- else
- Screen [N] = ScreenColors [Pixel];
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_SUBF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
- {
- if (SubDepth [N] == 1)
- Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], GFX.FixedColour);
- else
- Screen [N] = ScreenColors [Pixel];
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-static void WRITE_4PIXELS16_FLIPPED_SUBF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
- uint8 Pixel;
- uint16 *Screen = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint8 *SubDepth = GFX.SubZBuffer + Offset;
-
- for (uint N = 0; N < 4; N++)
- {
- if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
- {
- if (SubDepth [N] == 1)
- Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], GFX.FixedColour);
- else
- Screen [N] = ScreenColors [Pixel];
- Depth [N] = GFX.Z2;
- }
- }
-}
-
-void DrawTile16FixedAdd1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16_ADDF1_2, WRITE_4PIXELS16_FLIPPED_ADDF1_2, 4)
-}
-
-void DrawClippedTile16FixedAdd1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_ADDF1_2,
- WRITE_4PIXELS16_FLIPPED_ADDF1_2, 4)
-}
-
-void DrawTile16FixedSub1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- RENDER_TILE(WRITE_4PIXELS16_SUBF1_2, WRITE_4PIXELS16_FLIPPED_SUBF1_2, 4)
-}
-
-void DrawClippedTile16FixedSub1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
- register uint8 *bp;
-
- TILE_CLIP_PREAMBLE
- RENDER_CLIPPED_TILE(WRITE_4PIXELS16_SUBF1_2,
- WRITE_4PIXELS16_FLIPPED_SUBF1_2, 4)
-}
-
-void DrawLargePixel16Add (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
-
- register uint16 *sp = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint16 pixel;
-
-#define LARGE_ADD_PIXEL(s, p) \
-(Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
- COLOR_ADD (p, *(s + GFX.Delta)) : \
- COLOR_ADD (p, GFX.FixedColour)) \
- : p)
-
- RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_ADD_PIXEL)
-}
-
-void DrawLargePixel16Add1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
-
- register uint16 *sp = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint16 pixel;
-
-#define LARGE_ADD_PIXEL1_2(s, p) \
-((uint16) (Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
- COLOR_ADD1_2 (p, *(s + GFX.Delta)) : \
- COLOR_ADD (p, GFX.FixedColour)) \
- : p))
-
- RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_ADD_PIXEL1_2)
-}
-
-void DrawLargePixel16Sub (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
-
- register uint16 *sp = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint16 pixel;
-
-#define LARGE_SUB_PIXEL(s, p) \
-(Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
- COLOR_SUB (p, *(s + GFX.Delta)) : \
- COLOR_SUB (p, GFX.FixedColour)) \
- : p)
-
- RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_SUB_PIXEL)
-}
-
-void DrawLargePixel16Sub1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount)
-{
- TILE_PREAMBLE
-
- register uint16 *sp = (uint16 *) GFX.S + Offset;
- uint8 *Depth = GFX.ZBuffer + Offset;
- uint16 pixel;
-
-#define LARGE_SUB_PIXEL1_2(s, p) \
-(Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
- COLOR_SUB1_2 (p, *(s + GFX.Delta)) : \
- COLOR_SUB (p, GFX.FixedColour)) \
- : p)
-
- RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_SUB_PIXEL1_2)
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 09:41:21 +0000