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authoraliaspider2014-10-29 05:36:07 +0100
committeraliaspider2014-10-29 05:36:07 +0100
commita6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a (patch)
tree6f82417b0ab41f3887dd025ee3b85254e28143da /source/gfx.cpp
parent1d98e1c317fa19687ae6bc3cb8e550ef7531bf02 (diff)
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start moving everything to C
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diff --git a/source/gfx.cpp b/source/gfx.cpp
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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 "cpuexec.h"
-#include "display.h"
-#include "gfx.h"
-#include "apu.h"
-#include "cheats.h"
-#include "screenshot.h"
-
-#define M7 19
-#define M8 19
-
-void output_png();
-void ComputeClipWindows ();
-static void S9xDisplayFrameRate ();
-static void S9xDisplayString (const char *string);
-
-extern uint8 BitShifts[8][4];
-extern uint8 TileShifts[8][4];
-extern uint8 PaletteShifts[8][4];
-extern uint8 PaletteMasks[8][4];
-extern uint8 Depths[8][4];
-extern uint8 BGSizes [2];
-
-extern NormalTileRenderer DrawTilePtr;
-extern ClippedTileRenderer DrawClippedTilePtr;
-extern NormalTileRenderer DrawHiResTilePtr;
-extern ClippedTileRenderer DrawHiResClippedTilePtr;
-extern LargePixelRenderer DrawLargePixelPtr;
-
-extern struct SBG BG;
-
-extern struct SLineData LineData[240];
-extern struct SLineMatrixData LineMatrixData [240];
-
-extern uint8 Mode7Depths [2];
-
-#define CLIP_10_BIT_SIGNED(a) \
- ((a) & ((1 << 10) - 1)) + (((((a) & (1 << 13)) ^ (1 << 13)) - (1 << 13)) >> 3)
-
-#define ON_MAIN(N) \
-(GFX.r212c & (1 << (N)) && \
- !(PPU.BG_Forced & (1 << (N))))
-
-#define SUB_OR_ADD(N) \
-(GFX.r2131 & (1 << (N)))
-
-#define ON_SUB(N) \
-((GFX.r2130 & 0x30) != 0x30 && \
- (GFX.r2130 & 2) && \
- (GFX.r212d & (1 << N)) && \
- !(PPU.BG_Forced & (1 << (N))))
-
-#define ANYTHING_ON_SUB \
-((GFX.r2130 & 0x30) != 0x30 && \
- (GFX.r2130 & 2) && \
- (GFX.r212d & 0x1f))
-
-#define ADD_OR_SUB_ON_ANYTHING \
-(GFX.r2131 & 0x3f)
-
-#define FIX_INTERLACE(SCREEN, DO_DEPTH, DEPTH) \
- if (IPPU.DoubleHeightPixels && ((PPU.BGMode != 5 && PPU.BGMode != 6) || !IPPU.Interlace)) \
- for (uint32 y = GFX.StartY; y <= GFX.EndY; y++) \
- { \
- /* memmove converted: Same malloc, non-overlapping addresses [Neb] */ \
- memcpy (SCREEN + (y * 2 + 1) * GFX.Pitch2, \
- SCREEN + y * 2 * GFX.Pitch2, \
- GFX.Pitch2); \
- if(DO_DEPTH){ \
- /* memmove required: Same malloc, potentially overlapping addresses [Neb] */ \
- memmove (DEPTH + (y * 2 + 1) * (GFX.PPLx2>>1), \
- DEPTH + y * GFX.PPL, \
- GFX.PPLx2>>1); \
- } \
- }
-
-
-#define BLACK BUILD_PIXEL(0,0,0)
-
-void DrawTile16 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawTile16HalfWidth (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16HalfWidth (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawTile16x2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16x2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawTile16x2x2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16x2x2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawLargePixel16 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-void DrawLargePixel16HalfWidth (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16Add (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Add (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16Add1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Add1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16FixedAdd1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16FixedAdd1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16Sub (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Sub (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16Sub1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Sub1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16FixedSub1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16FixedSub1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Add (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Add1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Sub (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Sub1_2 (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-bool8 S9xGraphicsInit ()
-{
- register uint32 PixelOdd = 1;
- register uint32 PixelEven = 2;
-
- for (uint8 bitshift = 0; bitshift < 4; bitshift++)
- {
- for (register int i = 0; i < 16; i++)
- {
- register uint32 h = 0;
- register uint32 l = 0;
-
-#if defined(LSB_FIRST)
- if (i & 8)
- h |= PixelOdd;
- if (i & 4)
- h |= PixelOdd << 8;
- if (i & 2)
- h |= PixelOdd << 16;
- if (i & 1)
- h |= PixelOdd << 24;
- if (i & 8)
- l |= PixelOdd;
- if (i & 4)
- l |= PixelOdd << 8;
- if (i & 2)
- l |= PixelOdd << 16;
- if (i & 1)
- l |= PixelOdd << 24;
-#else
- if (i & 8)
- h |= (PixelOdd << 24);
- if (i & 4)
- h |= (PixelOdd << 16);
- if (i & 2)
- h |= (PixelOdd << 8);
- if (i & 1)
- h |= PixelOdd;
- if (i & 8)
- l |= (PixelOdd << 24);
- if (i & 4)
- l |= (PixelOdd << 16);
- if (i & 2)
- l |= (PixelOdd << 8);
- if (i & 1)
- l |= PixelOdd;
-#endif
-
- odd_high[bitshift][i] = h;
- odd_low[bitshift][i] = l;
- h = l = 0;
-
-#if defined(LSB_FIRST)
- if (i & 8)
- h |= PixelEven;
- if (i & 4)
- h |= PixelEven << 8;
- if (i & 2)
- h |= PixelEven << 16;
- if (i & 1)
- h |= PixelEven << 24;
- if (i & 8)
- l |= PixelEven;
- if (i & 4)
- l |= PixelEven << 8;
- if (i & 2)
- l |= PixelEven << 16;
- if (i & 1)
- l |= PixelEven << 24;
-#else
- if (i & 8)
- h |= (PixelEven << 24);
- if (i & 4)
- h |= (PixelEven << 16);
- if (i & 2)
- h |= (PixelEven << 8);
- if (i & 1)
- h |= PixelEven;
- if (i & 8)
- l |= (PixelEven << 24);
- if (i & 4)
- l |= (PixelEven << 16);
- if (i & 2)
- l |= (PixelEven << 8);
- if (i & 1)
- l |= PixelEven;
-#endif
-
- even_high[bitshift][i] = h;
- even_low[bitshift][i] = l;
- }
- PixelEven <<= 2;
- PixelOdd <<= 2;
- }
-
- GFX.RealPitch = GFX.Pitch2 = GFX.Pitch;
- GFX.ZPitch = GFX.Pitch;
- GFX.ZPitch >>= 1;
- GFX.Delta = (GFX.SubScreen - GFX.Screen) >> 1;
- GFX.DepthDelta = GFX.SubZBuffer - GFX.ZBuffer;
- //GFX.InfoStringTimeout = 0;
- //GFX.InfoString = NULL;
-
- PPU.BG_Forced = 0;
- IPPU.OBJChanged = TRUE;
-
- IPPU.DirectColourMapsNeedRebuild = TRUE;
- GFX.PixSize = 1;
- DrawTilePtr = DrawTile16;
- DrawClippedTilePtr = DrawClippedTile16;
- DrawLargePixelPtr = DrawLargePixel16;
- if (Settings.SupportHiRes)
- {
- DrawHiResTilePtr= DrawTile16;
- DrawHiResClippedTilePtr = DrawClippedTile16;
- }
- else
- {
- DrawHiResTilePtr= DrawTile16HalfWidth;
- DrawHiResClippedTilePtr = DrawClippedTile16HalfWidth;
- }
- GFX.PPL = GFX.Pitch >> 1;
- GFX.PPLx2 = GFX.Pitch;
- S9xFixColourBrightness ();
-
- if (!(GFX.X2 = (uint16 *) malloc (sizeof (uint16) * 0x10000)))
- return (FALSE);
-
- if (!(GFX.ZERO_OR_X2 = (uint16 *) malloc (sizeof (uint16) * 0x10000)) ||
- !(GFX.ZERO = (uint16 *) malloc (sizeof (uint16) * 0x10000)))
- {
- if (GFX.ZERO_OR_X2)
- {
- free ((char *) GFX.ZERO_OR_X2);
- GFX.ZERO_OR_X2 = NULL;
- }
- if (GFX.X2)
- {
- free ((char *) GFX.X2);
- GFX.X2 = NULL;
- }
- return (FALSE);
- }
- uint32 r, g, b;
-
- // Build a lookup table that multiplies a packed RGB value by 2 with
- // saturation.
- for (r = 0; r <= MAX_RED; r++)
- {
- uint32 r2 = r << 1;
- if (r2 > MAX_RED)
- r2 = MAX_RED;
- for (g = 0; g <= MAX_GREEN; g++)
- {
- uint32 g2 = g << 1;
- if (g2 > MAX_GREEN)
- g2 = MAX_GREEN;
- for (b = 0; b <= MAX_BLUE; b++)
- {
- uint32 b2 = b << 1;
- if (b2 > MAX_BLUE)
- b2 = MAX_BLUE;
- GFX.X2 [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
- GFX.X2 [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
- }
- }
- }
- ZeroMemory (GFX.ZERO, 0x10000 * sizeof (uint16));
- ZeroMemory (GFX.ZERO_OR_X2, 0x10000 * sizeof (uint16));
- // Build a lookup table that if the top bit of the color value is zero
- // then the value is zero, otherwise multiply the value by 2. Used by
- // the color subtraction code.
-
-#if defined(OLD_COLOUR_BLENDING)
- for (r = 0; r <= MAX_RED; r++)
- {
- uint32 r2 = r;
- if ((r2 & 0x10) == 0)
- r2 = 0;
- else
- r2 = (r2 << 1) & MAX_RED;
-
- for (g = 0; g <= MAX_GREEN; g++)
- {
- uint32 g2 = g;
- if ((g2 & GREEN_HI_BIT) == 0)
- g2 = 0;
- else
- g2 = (g2 << 1) & MAX_GREEN;
-
- for (b = 0; b <= MAX_BLUE; b++)
- {
- uint32 b2 = b;
- if ((b2 & 0x10) == 0)
- b2 = 0;
- else
- b2 = (b2 << 1) & MAX_BLUE;
-
- GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
- GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
- }
- }
- }
-#else
- for (r = 0; r <= MAX_RED; r++)
- {
- uint32 r2 = r;
- if ((r2 & 0x10) == 0)
- r2 = 0;
- else
- r2 = (r2 << 1) & MAX_RED;
-
- if (r2 == 0)
- r2 = 1;
- for (g = 0; g <= MAX_GREEN; g++)
- {
- uint32 g2 = g;
- if ((g2 & GREEN_HI_BIT) == 0)
- g2 = 0;
- else
- g2 = (g2 << 1) & MAX_GREEN;
-
- if (g2 == 0)
- g2 = 1;
- for (b = 0; b <= MAX_BLUE; b++)
- {
- uint32 b2 = b;
- if ((b2 & 0x10) == 0)
- b2 = 0;
- else
- b2 = (b2 << 1) & MAX_BLUE;
-
- if (b2 == 0)
- b2 = 1;
- GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
- GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
- }
- }
- }
-#endif
-
- // Build a lookup table that if the top bit of the color value is zero
- // then the value is zero, otherwise its just the value.
- for (r = 0; r <= MAX_RED; r++)
- {
- uint32 r2 = r;
- if ((r2 & 0x10) == 0)
- r2 = 0;
- else
- r2 &= ~0x10;
-
- for (g = 0; g <= MAX_GREEN; g++)
- {
- uint32 g2 = g;
- if ((g2 & GREEN_HI_BIT) == 0)
- g2 = 0;
- else
- g2 &= ~GREEN_HI_BIT;
- for (b = 0; b <= MAX_BLUE; b++)
- {
- uint32 b2 = b;
- if ((b2 & 0x10) == 0)
- b2 = 0;
- else
- b2 &= ~0x10;
-
- GFX.ZERO [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
- GFX.ZERO [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
- }
- }
- }
- return (TRUE);
-}
-
-void S9xGraphicsDeinit (void)
-{
- // Free any memory allocated in S9xGraphicsInit
- if (GFX.X2)
- {
- free ((char *) GFX.X2);
- GFX.X2 = NULL;
- }
- if (GFX.ZERO_OR_X2)
- {
- free ((char *) GFX.ZERO_OR_X2);
- GFX.ZERO_OR_X2 = NULL;
- }
- if (GFX.ZERO)
- {
- free ((char *) GFX.ZERO);
- GFX.ZERO = NULL;
- }
-}
-
-void S9xBuildDirectColourMaps ()
-{
- for (uint32 p = 0; p < 8; p++)
- {
- for (uint32 c = 0; c < 256; c++)
- {
-// XXX: Brightness
- DirectColourMaps [p][c] = BUILD_PIXEL (((c & 7) << 2) | ((p & 1) << 1),
- ((c & 0x38) >> 1) | (p & 2),
- ((c & 0xc0) >> 3) | (p & 4));
- }
- }
- IPPU.DirectColourMapsNeedRebuild = FALSE;
-}
-
-void S9xStartScreenRefresh ()
-{
- if (GFX.InfoStringTimeout > 0 && --GFX.InfoStringTimeout == 0)
- GFX.InfoString = NULL;
-
- if (IPPU.RenderThisFrame)
- {
- if (!S9xInitUpdate ())
- {
- IPPU.RenderThisFrame = FALSE;
- return;
- }
-
- IPPU.RenderedFramesCount++;
- IPPU.PreviousLine = IPPU.CurrentLine = 0;
- IPPU.MaxBrightness = PPU.Brightness;
- IPPU.LatchedBlanking = PPU.ForcedBlanking;
-
- if(PPU.BGMode == 5 || PPU.BGMode == 6)
- IPPU.Interlace = (Memory.FillRAM[0x2133] & 1);
- if (Settings.SupportHiRes && (PPU.BGMode == 5 || PPU.BGMode == 6 || IPPU.Interlace))
- {
- IPPU.RenderedScreenWidth = 512;
- IPPU.DoubleWidthPixels = TRUE;
- IPPU.HalfWidthPixels = FALSE;
-
- if (IPPU.Interlace)
- {
- IPPU.RenderedScreenHeight = PPU.ScreenHeight << 1;
- IPPU.DoubleHeightPixels = TRUE;
- GFX.Pitch2 = GFX.RealPitch;
- GFX.Pitch = GFX.RealPitch * 2;
- GFX.PPL = GFX.PPLx2 = GFX.RealPitch;
- }
- else
- {
- IPPU.RenderedScreenHeight = PPU.ScreenHeight;
- GFX.Pitch2 = GFX.Pitch = GFX.RealPitch;
- IPPU.DoubleHeightPixels = FALSE;
- GFX.PPL = GFX.Pitch >> 1;
- GFX.PPLx2 = GFX.PPL << 1;
- }
- }
- else if (!Settings.SupportHiRes && (PPU.BGMode == 5 || PPU.BGMode == 6 || IPPU.Interlace))
- {
- IPPU.RenderedScreenWidth = 256;
- IPPU.DoubleWidthPixels = FALSE;
- // Secret of Mana displays menus with mode 5.
- // Make them readable.
- IPPU.HalfWidthPixels = TRUE;
- }
- else
- {
- IPPU.RenderedScreenWidth = 256;
- IPPU.RenderedScreenHeight = PPU.ScreenHeight;
- IPPU.DoubleWidthPixels = FALSE;
- IPPU.HalfWidthPixels = FALSE;
- IPPU.DoubleHeightPixels = FALSE;
- {
- GFX.Pitch2 = GFX.Pitch = GFX.RealPitch;
- GFX.PPL = GFX.PPLx2 >> 1;
- GFX.ZPitch = GFX.RealPitch;
- GFX.ZPitch >>= 1;
- }
- }
-
- PPU.RecomputeClipWindows = TRUE;
- GFX.DepthDelta = GFX.SubZBuffer - GFX.ZBuffer;
- GFX.Delta = (GFX.SubScreen - GFX.Screen) >> 1;
- }
-
- if (++IPPU.FrameCount % Memory.ROMFramesPerSecond == 0)
- {
- IPPU.DisplayedRenderedFrameCount = IPPU.RenderedFramesCount;
- IPPU.RenderedFramesCount = 0;
- IPPU.FrameCount = 0;
- }
-}
-
-void RenderLine (uint8 C)
-{
- if (IPPU.RenderThisFrame)
- {
- LineData[C].BG[0].VOffset = PPU.BG[0].VOffset + 1;
- LineData[C].BG[0].HOffset = PPU.BG[0].HOffset;
- LineData[C].BG[1].VOffset = PPU.BG[1].VOffset + 1;
- LineData[C].BG[1].HOffset = PPU.BG[1].HOffset;
-
- if (PPU.BGMode == 7)
- {
- struct SLineMatrixData *p = &LineMatrixData [C];
- p->MatrixA = PPU.MatrixA;
- p->MatrixB = PPU.MatrixB;
- p->MatrixC = PPU.MatrixC;
- p->MatrixD = PPU.MatrixD;
- p->CentreX = PPU.CentreX;
- p->CentreY = PPU.CentreY;
- }
- else
- {
- if (Settings.StarfoxHack && PPU.BG[2].VOffset == 0 &&
- PPU.BG[2].HOffset == 0xe000)
- {
- LineData[C].BG[2].VOffset = 0xe1;
- LineData[C].BG[2].HOffset = 0;
- }
- else
- {
- LineData[C].BG[2].VOffset = PPU.BG[2].VOffset + 1;
- LineData[C].BG[2].HOffset = PPU.BG[2].HOffset;
- LineData[C].BG[3].VOffset = PPU.BG[3].VOffset + 1;
- LineData[C].BG[3].HOffset = PPU.BG[3].HOffset;
- }
- }
- IPPU.CurrentLine = C + 1;
- } else {
- /* if we're not rendering this frame, we still need to update this */
- // XXX: Check ForceBlank? Or anything else?
- if(IPPU.OBJChanged) S9xSetupOBJ();
- PPU.RangeTimeOver |= GFX.OBJLines[C].RTOFlags;
- }
-}
-
-void S9xEndScreenRefresh ()
-{
- IPPU.HDMAStarted = FALSE;
- if (IPPU.RenderThisFrame)
- {
- FLUSH_REDRAW ();
- if (IPPU.ColorsChanged)
- {
- uint32 saved = PPU.CGDATA[0];
- IPPU.ColorsChanged = FALSE;
- PPU.CGDATA[0] = saved;
- }
-
- GFX.Pitch = GFX.Pitch2 = GFX.RealPitch;
- GFX.PPL = GFX.PPLx2 >> 1;
- S9xDeinitUpdate (IPPU.RenderedScreenWidth, IPPU.RenderedScreenHeight);
- }
-
- S9xApplyCheats ();
-
- if (CPU.SRAMModified)
- {
- S9xAutoSaveSRAM ();
- CPU.SRAMModified = FALSE;
- }
-
-}
-
-void S9xSetInfoString (const char *string)
-{
- GFX.InfoString = string;
- GFX.InfoStringTimeout = 120;
-}
-
-inline void SelectTileRenderer (bool8 normal)
-{
- if (normal)
- {
- if (IPPU.HalfWidthPixels)
- {
- DrawTilePtr = DrawTile16HalfWidth;
- DrawClippedTilePtr = DrawClippedTile16HalfWidth;
- DrawLargePixelPtr = DrawLargePixel16HalfWidth;
- }
- else
- {
- DrawTilePtr = DrawTile16;
- DrawClippedTilePtr = DrawClippedTile16;
- DrawLargePixelPtr = DrawLargePixel16;
- }
- }
- else
- {
- switch (GFX.r2131 & 0xC0)
- {
- case 0x00:
- DrawTilePtr = DrawTile16Add;
- DrawClippedTilePtr = DrawClippedTile16Add;
- DrawLargePixelPtr = DrawLargePixel16Add;
- break;
- case 0x40:
- if (GFX.r2130 & 2)
- {
- DrawTilePtr = DrawTile16Add1_2;
- DrawClippedTilePtr = DrawClippedTile16Add1_2;
- }
- else
- {
- // Fixed colour addition
- DrawTilePtr = DrawTile16FixedAdd1_2;
- DrawClippedTilePtr = DrawClippedTile16FixedAdd1_2;
- }
- DrawLargePixelPtr = DrawLargePixel16Add1_2;
- break;
- case 0x80:
- DrawTilePtr = DrawTile16Sub;
- DrawClippedTilePtr = DrawClippedTile16Sub;
- DrawLargePixelPtr = DrawLargePixel16Sub;
- break;
- case 0xC0:
- if (GFX.r2130 & 2)
- {
- DrawTilePtr = DrawTile16Sub1_2;
- DrawClippedTilePtr = DrawClippedTile16Sub1_2;
- }
- else
- {
- // Fixed colour substraction
- DrawTilePtr = DrawTile16FixedSub1_2;
- DrawClippedTilePtr = DrawClippedTile16FixedSub1_2;
- }
- DrawLargePixelPtr = DrawLargePixel16Sub1_2;
- break;
- }
- }
-}
-
-void S9xSetupOBJ ()
-{
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "Entering SetupOBJS()\n");
-#endif
- int SmallWidth, SmallHeight;
- int LargeWidth, LargeHeight;
-
- switch (PPU.OBJSizeSelect)
- {
- case 0:
- SmallWidth = SmallHeight = 8;
- LargeWidth = LargeHeight = 16;
- break;
- case 1:
- SmallWidth = SmallHeight = 8;
- LargeWidth = LargeHeight = 32;
- break;
- case 2:
- SmallWidth = SmallHeight = 8;
- LargeWidth = LargeHeight = 64;
- break;
- case 3:
- SmallWidth = SmallHeight = 16;
- LargeWidth = LargeHeight = 32;
- break;
- case 4:
- SmallWidth = SmallHeight = 16;
- LargeWidth = LargeHeight = 64;
- break;
- default:
- case 5:
- SmallWidth = SmallHeight = 32;
- LargeWidth = LargeHeight = 64;
- break;
- case 6:
- SmallWidth = 16; SmallHeight = 32;
- LargeWidth = 32; LargeHeight = 64;
- break;
- case 7:
- SmallWidth = 16; SmallHeight = 32;
- LargeWidth = LargeHeight = 32;
- break;
- }
- if(IPPU.InterlaceSprites)
- {
- SmallHeight>>=1; LargeHeight>>=1;
- }
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "Sizes are %dx%d and %dx%d\n", SmallWidth, SmallHeight, LargeWidth, LargeHeight);
-#endif
-
- /* OK, we have three cases here. Either there's no priority, priority is
- * normal FirstSprite, or priority is FirstSprite+Y. The first two are
- * easy, the last is somewhat more ... interesting. So we split them up. */
-
- int Height;
- uint8 S;
-
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "Priority rotation=%d, OAMAddr=%d -> ", PPU.OAMPriorityRotation, PPU.OAMAddr*2 | (PPU.OAMFlip&1));
-#endif
- if(!PPU.OAMPriorityRotation || !(PPU.OAMFlip&PPU.OAMAddr&1)){
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "normal FirstSprite = %02x\n", PPU.FirstSprite);
-#endif
- /* normal case */
- uint8 LineOBJ[SNES_HEIGHT_EXTENDED];
- memset(LineOBJ, 0, sizeof(LineOBJ));
- for(int i=0; i<SNES_HEIGHT_EXTENDED; i++){
- GFX.OBJLines[i].RTOFlags=0;
- GFX.OBJLines[i].Tiles=34;
- }
- uint8 FirstSprite=PPU.FirstSprite;
- S=FirstSprite;
- do {
- if(PPU.OBJ[S].Size){
- GFX.OBJWidths[S]=LargeWidth; Height=LargeHeight;
- } else {
- GFX.OBJWidths[S]=SmallWidth; Height=SmallHeight;
- }
- int HPos=PPU.OBJ[S].HPos; if(HPos==-256) HPos=256;
- if(HPos>-GFX.OBJWidths[S] && HPos<=256)
- {
- if(HPos<0){
- GFX.OBJVisibleTiles[S]=(GFX.OBJWidths[S]+HPos+7)>>3;
- } else if(HPos+GFX.OBJWidths[S]>=257){
- GFX.OBJVisibleTiles[S]=(257-HPos+7)>>3;
- } else {
- GFX.OBJVisibleTiles[S]=GFX.OBJWidths[S]>>3;
- }
- for(uint8 line=0, Y=(uint8)(PPU.OBJ[S].VPos&0xff); line<Height; Y++, line++){
- if(Y>=SNES_HEIGHT_EXTENDED) continue;
- if(LineOBJ[Y]>=32){
- GFX.OBJLines[Y].RTOFlags|=0x40;
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "%d: OBJ %02x ranged over\n", Y, S);
-#endif
- continue;
- }
- GFX.OBJLines[Y].Tiles-=GFX.OBJVisibleTiles[S];
- if(GFX.OBJLines[Y].Tiles<0) GFX.OBJLines[Y].RTOFlags|=0x80;
- GFX.OBJLines[Y].OBJ[LineOBJ[Y]].Sprite=S;
- if(PPU.OBJ[S].VFlip){
- // Yes, Width not Height. It so happens that the
- // sprites with H=2*W flip as two WxW sprites.
- GFX.OBJLines[Y].OBJ[LineOBJ[Y]].Line=line^(GFX.OBJWidths[S]-1);
- } else {
- GFX.OBJLines[Y].OBJ[LineOBJ[Y]].Line=line;
- }
- LineOBJ[Y]++;
- }
- }
- S=(S+1)&0x7F;
- } while(S!=FirstSprite);
-
- for (int Y = 0; Y < SNES_HEIGHT_EXTENDED; Y++) {
- if (LineOBJ[Y] < 32) // Add the sentinel
- GFX.OBJLines[Y].OBJ[LineOBJ[Y]].Sprite = -1;
- }
- for(int Y=1; Y<SNES_HEIGHT_EXTENDED; Y++){
- GFX.OBJLines[Y].RTOFlags |= GFX.OBJLines[Y-1].RTOFlags;
- }
- } else {
- /* evil FirstSprite+Y case */
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "FirstSprite+Y\n");
-#endif
-
- /* First, find out which sprites are on which lines */
- uint8 OBJOnLine[SNES_HEIGHT_EXTENDED][128];
- // memset(OBJOnLine, 0, sizeof(OBJOnLine));
- /* Hold on here, that's a lot of bytes to initialise at once!
- * So we only initialise them per line, as needed. [Neb]
- * Bonus: We can quickly avoid looping if a line has no OBJs.
- */
- bool8 AnyOBJOnLine[SNES_HEIGHT_EXTENDED];
- memset(AnyOBJOnLine, FALSE, sizeof(AnyOBJOnLine)); // better
-
- for(S=0; S<128; S++){
- if(PPU.OBJ[S].Size){
- GFX.OBJWidths[S]=LargeWidth; Height=LargeHeight;
- } else {
- GFX.OBJWidths[S]=SmallWidth; Height=SmallHeight;
- }
- int HPos=PPU.OBJ[S].HPos; if(HPos==-256) HPos=256;
- if(HPos>-GFX.OBJWidths[S] && HPos<=256)
- {
- if(HPos<0){
- GFX.OBJVisibleTiles[S]=(GFX.OBJWidths[S]+HPos+7)>>3;
- } else if(HPos+GFX.OBJWidths[S]>=257){
- GFX.OBJVisibleTiles[S]=(257-HPos+7)>>3;
- } else {
- GFX.OBJVisibleTiles[S]=GFX.OBJWidths[S]>>3;
- }
- for(uint8 line=0, Y=(uint8)(PPU.OBJ[S].VPos&0xff); line<Height; Y++, line++){
- if(Y>=SNES_HEIGHT_EXTENDED) continue;
- if (!AnyOBJOnLine[Y]) {
- memset(OBJOnLine[Y], 0, 128);
- AnyOBJOnLine[Y] = TRUE;
- }
- if(PPU.OBJ[S].VFlip){
- // Yes, Width not Height. It so happens that the
- // sprites with H=2*W flip as two WxW sprites.
- OBJOnLine[Y][S]=(line^(GFX.OBJWidths[S]-1)) | 0x80;
- } else {
- OBJOnLine[Y][S]=line | 0x80;
- }
- }
- }
- }
-
- /* Now go through and pull out those OBJ that are actually visible. */
- int j;
- for(int Y=0; Y<SNES_HEIGHT_EXTENDED; Y++){
- GFX.OBJLines[Y].RTOFlags=Y?0:GFX.OBJLines[Y-1].RTOFlags;
-
- GFX.OBJLines[Y].Tiles=34;
- j=0;
- if (AnyOBJOnLine[Y]) {
- uint8 FirstSprite=(PPU.FirstSprite+Y)&0x7F;
- S=FirstSprite;
- do {
- if(OBJOnLine[Y][S]){
- if(j>=32){
- GFX.OBJLines[Y].RTOFlags|=0x40;
- #ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "%d: OBJ %02x ranged over\n", Y, S);
- #endif
- break;
- }
- GFX.OBJLines[Y].Tiles-=GFX.OBJVisibleTiles[S];
- if(GFX.OBJLines[Y].Tiles<0) GFX.OBJLines[Y].RTOFlags|=0x80;
- GFX.OBJLines[Y].OBJ[j].Sprite=S;
- GFX.OBJLines[Y].OBJ[j++].Line=OBJOnLine[Y][S]&~0x80;
- }
- S=(S+1)&0x7F;
- } while(S!=FirstSprite);
- }
- if(j<32) GFX.OBJLines[Y].OBJ[j].Sprite=-1;
- }
- }
-
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) {
- fprintf(stderr, "Sprites per line:\n");
- for(int xxx=0; xxx<SNES_HEIGHT_EXTENDED; xxx++){
- fprintf(stderr, "Line %d: RTO=%02x Tiles=%d", xxx, GFX.OBJLines[xxx].RTOFlags, 34-GFX.OBJLines[xxx].Tiles);
- for(int j=0; j<32 && GFX.OBJLines[xxx].OBJ[j].Sprite>=0; j++){
- fprintf(stderr, " %02x.%d", GFX.OBJLines[xxx].OBJ[j].Sprite, GFX.OBJLines[xxx].OBJ[j].Line);
- }
- fprintf(stderr, "\n");
- }
-
- fprintf(stderr, "Exiting SetupObj()\n");
- }
-#endif
-
- IPPU.OBJChanged = FALSE;
-}
-
-static void DrawOBJS (bool8 OnMain = FALSE, uint8 D = 0)
-{
-#ifdef ACCUMULATE_JOYPAD
-/*
- * This call allows NDSSFC to synchronise the DS controller more often.
- * If porting a later version of Snes9x into NDSSFC, it is essential to
- * preserve it.
- */
- NDSSFCAccumulateJoypad ();
-#endif
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "Entering DrawOBJS() for %d-%d\n", GFX.StartY, GFX.EndY);
-#endif
- CHECK_SOUND();
-
- BG.BitShift = 4;
- BG.TileShift = 5;
- BG.TileAddress = PPU.OBJNameBase;
- BG.StartPalette = 128;
- BG.PaletteShift = 4;
- BG.PaletteMask = 7;
- BG.Buffer = IPPU.TileCache [TILE_4BIT];
- BG.Buffered = IPPU.TileCached [TILE_4BIT];
- BG.NameSelect = PPU.OBJNameSelect;
- BG.DirectColourMode = FALSE;
-
- GFX.PixSize = 1;
-
- struct {
- uint16 Pos;
- bool8 Value;
- } Windows[7];
- int clipcount = GFX.pCurrentClip->Count [4];
- if (!clipcount){
- Windows[0].Pos=0;
- Windows[0].Value=TRUE;
- Windows[1].Pos=256;
- Windows[1].Value=FALSE;
- Windows[2].Pos=1000;
- Windows[2].Value=FALSE;
- } else {
- Windows[0].Pos=1000;
- Windows[0].Value=FALSE;
- for(int clip=0, i=1; clip<clipcount; clip++){
- if(GFX.pCurrentClip->Right[clip][4]<=GFX.pCurrentClip->Left[clip][4]) continue;
- int j;
- for(j=0; j<i && Windows[j].Pos<GFX.pCurrentClip->Left[clip][4]; j++);
- if(j<i && Windows[j].Pos==GFX.pCurrentClip->Left[clip][4]){
- Windows[j].Value = TRUE;
- } else {
- // memmove required: Overlapping addresses [Neb]
- if(j<i) memmove(&Windows[j+1], &Windows[j], sizeof(Windows[0])*(i-j));
- Windows[j].Pos = GFX.pCurrentClip->Left[clip][4];
- Windows[j].Value = TRUE;
- i++;
- }
- for(j=0; j<i && Windows[j].Pos<GFX.pCurrentClip->Right[clip][4]; j++);
- if(j>=i || Windows[j].Pos!=GFX.pCurrentClip->Right[clip][4]){
- // memmove required: Overlapping addresses [Neb]
- if(j<i) memmove(&Windows[j+1], &Windows[j], sizeof(Windows[0])*(i-j));
- Windows[j].Pos = GFX.pCurrentClip->Right[clip][4];
- Windows[j].Value = FALSE;
- i++;
- }
- }
- }
-
-#ifdef MK_DEBUG_RTO
-if(Settings.BGLayering) {
- fprintf(stderr, "Windows:\n");
- for(int xxx=0; xxx<6; xxx++){ fprintf(stderr, "%d: %d = %d\n", xxx, Windows[xxx].Pos, Windows[xxx].Value); }
-}
-#endif
-
- if (Settings.SupportHiRes)
- {
- if (PPU.BGMode == 5 || PPU.BGMode == 6)
- {
- // Bah, OnMain is never used except to determine if calling
- // SelectTileRenderer is necessary. So let's hack it to false here
- // to stop SelectTileRenderer from being called when it causes
- // problems.
- OnMain = FALSE;
- GFX.PixSize = 2;
- if (IPPU.DoubleHeightPixels)
- {
- DrawTilePtr = DrawTile16x2x2;
- DrawClippedTilePtr = DrawClippedTile16x2x2;
- }
- else
- {
- DrawTilePtr = DrawTile16x2;
- DrawClippedTilePtr = DrawClippedTile16x2;
- }
- }
- else
- {
- DrawTilePtr = DrawTile16;
- DrawClippedTilePtr = DrawClippedTile16;
- }
- }
- else // if (!Settings.SupportHiRes)
- {
- if (PPU.BGMode == 5 || PPU.BGMode == 6)
- {
- // Bah, OnMain is never used except to determine if calling
- // SelectTileRenderer is necessary. So let's hack it to false here
- // to stop SelectTileRenderer from being called when it causes
- // problems.
- OnMain = FALSE;
- }
- DrawTilePtr = DrawTile16;
- DrawClippedTilePtr = DrawClippedTile16;
- }
- GFX.Z1 = D + 2;
-
- for(uint32 Y=GFX.StartY, Offset=Y*GFX.PPL; Y<=GFX.EndY; Y++, Offset+=GFX.PPL){
-#ifdef MK_DEBUG_RTO
- bool8 Flag=0;
-#endif
- int I = 0;
-#ifdef MK_DISABLE_TIME_OVER
- int tiles=0;
-#else
- int tiles=GFX.OBJLines[Y].Tiles;
-#endif
- for (int S = GFX.OBJLines[Y].OBJ[I].Sprite; S >= 0 && I<32; S = GFX.OBJLines[Y].OBJ[++I].Sprite)
- {
- tiles+=GFX.OBJVisibleTiles[S];
- if(tiles<=0){
-#ifdef MK_DEBUG_RTO
-if(Settings.BGLayering) {
- if(!Flag){ Flag=1; fprintf(stderr, "Line %d:", Y); }
- fprintf(stderr, " [%02x]", S);
-}
-#endif
- continue;
- }
-
-#ifdef MK_DEBUG_RTO
-if(Settings.BGLayering) {
- if(!Flag){ Flag=1; fprintf(stderr, "Line %d:", Y); }
- fprintf(stderr, " %02x", S);
-}
-#endif
-
- if (OnMain && SUB_OR_ADD(4))
- {
- SelectTileRenderer (!GFX.Pseudo && PPU.OBJ [S].Palette < 4);
- }
-
- int BaseTile = (((GFX.OBJLines[Y].OBJ[I].Line<<1) + (PPU.OBJ[S].Name&0xf0))&0xf0) | (PPU.OBJ[S].Name&0x100) | (PPU.OBJ[S].Palette << 10);
- int TileX = PPU.OBJ[S].Name&0x0f;
- int TileLine = (GFX.OBJLines[Y].OBJ[I].Line&7)*8;
- int TileInc = 1;
-
- if (PPU.OBJ[S].HFlip)
- {
- TileX = (TileX + (GFX.OBJWidths[S] >> 3) - 1) & 0x0f;
- BaseTile |= H_FLIP;
- TileInc = -1;
- }
-
- GFX.Z2 = (PPU.OBJ[S].Priority + 1) * 4 + D;
-
- bool8 WinStat=TRUE;
- int WinIdx=0, NextPos=-1000;
- int X=PPU.OBJ[S].HPos; if(X==-256) X=256;
- for(int t=tiles, O=Offset+X*GFX.PixSize; X<=256 && X<PPU.OBJ[S].HPos+GFX.OBJWidths[S]; TileX=(TileX+TileInc)&0x0f, X+=8, O+=8*GFX.PixSize){
-#ifdef MK_DEBUG_RTO
-if(Settings.BGLayering) {
- if(X<-7) continue;
- if((t-1)<0) fprintf(stderr, "-[%d]", 35-t);
- else fprintf(stderr, "-%d", 35-t);
-}
-#endif
- if(X<-7 || --t<0 || X==256) continue;
- if(X>=NextPos){
- for(; WinIdx<7 && Windows[WinIdx].Pos<=X; WinIdx++);
- if(WinIdx==0) WinStat=FALSE;
- else WinStat=Windows[WinIdx-1].Value;
- NextPos=(WinIdx<7)?Windows[WinIdx].Pos:1000;
- }
-
- if(X+8<NextPos){
- if(WinStat) (*DrawTilePtr) (BaseTile|TileX, O, TileLine, 1);
- } else {
- int x=X;
- while(x<X+8){
- if(WinStat) (*DrawClippedTilePtr) (BaseTile|TileX, O, x-X, NextPos-x, TileLine, 1);
- x=NextPos;
- for(; WinIdx<7 && Windows[WinIdx].Pos<=x; WinIdx++);
- if(WinIdx==0) WinStat=FALSE;
- else WinStat=Windows[WinIdx-1].Value;
- NextPos=(WinIdx<7)?Windows[WinIdx].Pos:1000;
- if(NextPos>X+8) NextPos=X+8;
- }
- }
- }
- }
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) if(Flag) fprintf(stderr, "\n");
-#endif
- }
-#ifdef MK_DEBUG_RTO
- if(Settings.BGLayering) fprintf(stderr, "Exiting DrawOBJS() for %d-%d\n", GFX.StartY, GFX.EndY);
-#endif
-}
-
-static void DrawBackgroundMosaic (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
- CHECK_SOUND();
-
- uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint8 depths [2] = {Z1, Z2};
-
- if (BGMode == 0)
- BG.StartPalette = bg << 5;
- else
- BG.StartPalette = 0;
-
- SC0 = (uint16 *) &Memory.VRAM[PPU.BG[bg].SCBase << 1];
-
- if (PPU.BG[bg].SCSize & 1)
- SC1 = SC0 + 1024;
- else
- SC1 = SC0;
-
- if(((uint8*)SC1-Memory.VRAM)>=0x10000)
- SC1-=0x08000;
-
-
- if (PPU.BG[bg].SCSize & 2)
- SC2 = SC1 + 1024;
- else
- SC2 = SC0;
-
- if(((uint8*)SC2-Memory.VRAM)>=0x10000)
- SC2-=0x08000;
-
-
- if (PPU.BG[bg].SCSize & 1)
- SC3 = SC2 + 1024;
- else
- SC3 = SC2;
-
- if(((uint8*)SC3-Memory.VRAM)>=0x10000)
- SC3-=0x08000;
-
- uint32 Lines;
- uint32 OffsetMask;
- uint32 OffsetShift;
-
- if (BG.TileSize == 16)
- {
- OffsetMask = 0x3ff;
- OffsetShift = 4;
- }
- else
- {
- OffsetMask = 0x1ff;
- OffsetShift = 3;
- }
-
- int m5 = (BGMode == 5 || BGMode == 6) ? 1 : 0;
-
- for (uint32 Y = GFX.StartY; Y <= GFX.EndY; Y += Lines)
- {
- uint32 VOffset = LineData [Y].BG[bg].VOffset;
- uint32 HOffset = LineData [Y].BG[bg].HOffset;
- uint32 MosaicOffset = Y % PPU.Mosaic;
-
- for (Lines = 1; Lines < PPU.Mosaic - MosaicOffset; Lines++)
- if ((VOffset != LineData [Y + Lines].BG[bg].VOffset) ||
- (HOffset != LineData [Y + Lines].BG[bg].HOffset))
- break;
-
- uint32 MosaicLine = VOffset + Y - MosaicOffset;
-
- if (Y + Lines > GFX.EndY)
- Lines = GFX.EndY + 1 - Y;
- uint32 VirtAlign = (MosaicLine & 7) << 3;
-
- uint16 *b1;
- uint16 *b2;
-
- uint32 ScreenLine = MosaicLine >> OffsetShift;
- uint32 Rem16 = MosaicLine & 15;
-
- if (ScreenLine & 0x20)
- b1 = SC2, b2 = SC3;
- else
- b1 = SC0, b2 = SC1;
-
- b1 += (ScreenLine & 0x1f) << 5;
- b2 += (ScreenLine & 0x1f) << 5;
- uint16 *t;
- uint32 Left = 0;
- uint32 Right = 256 << m5;
-
- HOffset <<= m5;
-
- uint32 ClipCount = GFX.pCurrentClip->Count [bg];
- uint32 HPos = HOffset;
- uint32 PixWidth = (PPU.Mosaic << m5);
-
-
- if (!ClipCount)
- ClipCount = 1;
-
- for (uint32 clip = 0; clip < ClipCount; clip++)
- {
- if (GFX.pCurrentClip->Count [bg])
- {
- Left = GFX.pCurrentClip->Left [clip][bg] << m5;
- Right = GFX.pCurrentClip->Right [clip][bg] << m5;
-
- uint32 r = Left % (PPU.Mosaic << m5);
- HPos = HOffset + Left;
- PixWidth = (PPU.Mosaic << m5) - r;
- }
- uint32 s = Y * GFX.PPL + Left * GFX.PixSize;
- for (uint32 x = Left; x < Right; x += PixWidth,
- s += (IPPU.HalfWidthPixels ? PixWidth >> 1 : PixWidth) * GFX.PixSize,
- HPos += PixWidth, PixWidth = (PPU.Mosaic << m5))
- {
- uint32 Quot = (HPos & OffsetMask) >> 3;
-
- if (x + PixWidth >= Right)
- PixWidth = Right - x;
-
- if (BG.TileSize == 8 && !m5)
- {
- if (Quot > 31)
- t = b2 + (Quot & 0x1f);
- else
- t = b1 + Quot;
- }
- else
- {
- if (Quot > 63)
- t = b2 + ((Quot >> 1) & 0x1f);
- else
- t = b1 + (Quot >> 1);
- }
-
- Tile = READ_2BYTES (t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- // Draw tile...
- if (BG.TileSize != 8)
- {
- if (Tile & H_FLIP)
- {
- // Horizontal flip, but what about vertical flip ?
- if (Tile & V_FLIP)
- {
- // Both horzontal & vertical flip
- if (Rem16 < 8)
- {
- (*DrawLargePixelPtr) (Tile + 17 - (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- else
- {
- (*DrawLargePixelPtr) (Tile + 1 - (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- }
- else
- {
- // Horizontal flip only
- if (Rem16 > 7)
- {
- (*DrawLargePixelPtr) (Tile + 17 - (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- else
- {
- (*DrawLargePixelPtr) (Tile + 1 - (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- }
- }
- else
- {
- // No horizontal flip, but is there a vertical flip ?
- if (Tile & V_FLIP)
- {
- // Vertical flip only
- if (Rem16 < 8)
- {
- (*DrawLargePixelPtr) (Tile + 16 + (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- else
- {
- (*DrawLargePixelPtr) (Tile + (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- }
- else
- {
- // Normal unflipped
- if (Rem16 > 7)
- {
- (*DrawLargePixelPtr) (Tile + 16 + (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- else
- {
- (*DrawLargePixelPtr) (Tile + (Quot & 1), s,
- HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- }
- }
- }
- else
- (*DrawLargePixelPtr) (Tile + (Quot & 1) * m5, s, HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- }
- }
-}
-
-static void DrawBackgroundOffset (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
- CHECK_SOUND();
-
- uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint16 *BPS0;
- uint16 *BPS1;
- uint16 *BPS2;
- uint16 *BPS3;
- uint32 Width;
- int VOffsetOffset = BGMode == 4 ? 0 : 32;
- uint8 depths [2] = {Z1, Z2};
-
- BG.StartPalette = 0;
-
- BPS0 = (uint16 *) &Memory.VRAM[PPU.BG[2].SCBase << 1];
-
- if (PPU.BG[2].SCSize & 1)
- BPS1 = BPS0 + 1024;
- else
- BPS1 = BPS0;
-
- if (PPU.BG[2].SCSize & 2)
- BPS2 = BPS1 + 1024;
- else
- BPS2 = BPS0;
-
- if (PPU.BG[2].SCSize & 1)
- BPS3 = BPS2 + 1024;
- else
- BPS3 = BPS2;
-
- SC0 = (uint16 *) &Memory.VRAM[PPU.BG[bg].SCBase << 1];
-
- if (PPU.BG[bg].SCSize & 1)
- SC1 = SC0 + 1024;
- else
- SC1 = SC0;
-
- if(((uint8*)SC1-Memory.VRAM)>=0x10000)
- SC1-=0x08000;
-
-
- if (PPU.BG[bg].SCSize & 2)
- SC2 = SC1 + 1024;
- else
- SC2 = SC0;
-
- if(((uint8*)SC2-Memory.VRAM)>=0x10000)
- SC2-=0x08000;
-
-
- if (PPU.BG[bg].SCSize & 1)
- SC3 = SC2 + 1024;
- else
- SC3 = SC2;
-
- if(((uint8*)SC3-Memory.VRAM)>=0x10000)
- SC3-=0x08000;
-
-
- static const int Lines = 1;
- int OffsetMask;
- int OffsetShift;
- int OffsetEnableMask = 1 << (bg + 13);
-
- if (BG.TileSize == 16)
- {
- OffsetMask = 0x3ff;
- OffsetShift = 4;
- }
- else
- {
- OffsetMask = 0x1ff;
- OffsetShift = 3;
- }
-
- for (uint32 Y = GFX.StartY; Y <= GFX.EndY; Y++)
- {
- uint32 VOff = LineData [Y].BG[2].VOffset - 1;
-// uint32 VOff = LineData [Y].BG[2].VOffset;
- uint32 HOff = LineData [Y].BG[2].HOffset;
-
- int VirtAlign;
- int ScreenLine = VOff >> 3;
- int t1;
- int t2;
- uint16 *s0;
- uint16 *s1;
- uint16 *s2;
-
- if (ScreenLine & 0x20)
- s1 = BPS2, s2 = BPS3;
- else
- s1 = BPS0, s2 = BPS1;
-
- s1 += (ScreenLine & 0x1f) << 5;
- s2 += (ScreenLine & 0x1f) << 5;
-
- if(BGMode != 4)
- {
- if((ScreenLine & 0x1f) == 0x1f)
- {
- if(ScreenLine & 0x20)
- VOffsetOffset = BPS0 - BPS2 - 0x1f*32;
- else
- VOffsetOffset = BPS2 - BPS0 - 0x1f*32;
- }
- else
- {
- VOffsetOffset = 32;
- }
- }
-
- int clipcount = GFX.pCurrentClip->Count [bg];
- if (!clipcount)
- clipcount = 1;
-
- for (int clip = 0; clip < clipcount; clip++)
- {
- uint32 Left;
- uint32 Right;
-
- if (!GFX.pCurrentClip->Count [bg])
- {
- Left = 0;
- Right = 256;
- }
- else
- {
- Left = GFX.pCurrentClip->Left [clip][bg];
- Right = GFX.pCurrentClip->Right [clip][bg];
-
- if (Right <= Left)
- continue;
- }
-
- uint32 VOffset;
- uint32 HOffset;
- //added:
- uint32 LineHOffset=LineData [Y].BG[bg].HOffset;
-
- uint32 Offset;
- uint32 HPos;
- uint32 Quot;
- uint32 Count;
- uint16 *t;
- uint32 Quot2;
- uint32 VCellOffset;
- uint32 HCellOffset;
- uint16 *b1;
- uint16 *b2;
- uint32 TotalCount = 0;
- uint32 MaxCount = 8;
-
- uint32 s = Left * GFX.PixSize + Y * GFX.PPL;
- bool8 left_hand_edge = (Left == 0);
- Width = Right - Left;
-
- if (Left & 7)
- MaxCount = 8 - (Left & 7);
-
- while (Left < Right)
- {
- if (left_hand_edge)
- {
- // The SNES offset-per-tile background mode has a
- // hardware limitation that the offsets cannot be set
- // for the tile at the left-hand edge of the screen.
- VOffset = LineData [Y].BG[bg].VOffset;
-
- //MKendora; use temp var to reduce memory accesses
- //HOffset = LineData [Y].BG[bg].HOffset;
-
- HOffset = LineHOffset;
- //End MK
-
- left_hand_edge = FALSE;
- }
- else
-
- {
- // All subsequent offset tile data is shifted left by one,
- // hence the - 1 below.
-
- Quot2 = ((HOff + Left - 1) & OffsetMask) >> 3;
-
- if (Quot2 > 31)
- s0 = s2 + (Quot2 & 0x1f);
- else
- s0 = s1 + Quot2;
-
- HCellOffset = READ_2BYTES (s0);
-
- if (BGMode == 4)
- {
- VOffset = LineData [Y].BG[bg].VOffset;
-
- //MKendora another mem access hack
- //HOffset = LineData [Y].BG[bg].HOffset;
- HOffset=LineHOffset;
- //end MK
-
- if ((HCellOffset & OffsetEnableMask))
- {
- if (HCellOffset & 0x8000)
- VOffset = HCellOffset + 1;
- else
- HOffset = HCellOffset;
- }
- }
- else
- {
- VCellOffset = READ_2BYTES (s0 + VOffsetOffset);
- if ((VCellOffset & OffsetEnableMask))
- VOffset = VCellOffset + 1;
- else
- VOffset = LineData [Y].BG[bg].VOffset;
-
- //MKendora Strike Gunner fix
- if ((HCellOffset & OffsetEnableMask))
- {
- //HOffset= HCellOffset;
-
- HOffset = (HCellOffset & ~7)|(LineHOffset&7);
- //HOffset |= LineData [Y].BG[bg].HOffset&7;
- }
- else
- HOffset=LineHOffset;
- //HOffset = LineData [Y].BG[bg].HOffset -
- //Settings.StrikeGunnerOffsetHack;
- //HOffset &= (~7);
- //end MK
- }
- }
- VirtAlign = ((Y + VOffset) & 7) << 3;
- ScreenLine = (VOffset + Y) >> OffsetShift;
-
- if (((VOffset + Y) & 15) > 7)
- {
- t1 = 16;
- t2 = 0;
- }
- else
- {
- t1 = 0;
- t2 = 16;
- }
-
- if (ScreenLine & 0x20)
- b1 = SC2, b2 = SC3;
- else
- b1 = SC0, b2 = SC1;
-
- b1 += (ScreenLine & 0x1f) << 5;
- b2 += (ScreenLine & 0x1f) << 5;
-
- HPos = (HOffset + Left) & OffsetMask;
-
- Quot = HPos >> 3;
-
- if (BG.TileSize == 8)
- {
- if (Quot > 31)
- t = b2 + (Quot & 0x1f);
- else
- t = b1 + Quot;
- }
- else
- {
- if (Quot > 63)
- t = b2 + ((Quot >> 1) & 0x1f);
- else
- t = b1 + (Quot >> 1);
- }
-
- if (MaxCount + TotalCount > Width)
- MaxCount = Width - TotalCount;
-
- Offset = HPos & 7;
-
- //Count =1;
- Count = 8 - Offset;
- if (Count > MaxCount)
- Count = MaxCount;
-
- s -= (IPPU.HalfWidthPixels ? Offset >> 1 : Offset) * GFX.PixSize;
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- if (BG.TileSize == 8)
- (*DrawClippedTilePtr) (Tile, s, Offset, Count, VirtAlign, Lines);
- else
- {
- if (!(Tile & (V_FLIP | H_FLIP)))
- {
- // Normal, unflipped
- (*DrawClippedTilePtr) (Tile + t1 + (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- if (Tile & H_FLIP)
- {
- if (Tile & V_FLIP)
- {
- // H & V flip
- (*DrawClippedTilePtr) (Tile + t2 + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- {
- // H flip only
- (*DrawClippedTilePtr) (Tile + t1 + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- }
- else
- {
- // V flip only
- (*DrawClippedTilePtr) (Tile + t2 + (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- }
-
- Left += Count;
- TotalCount += Count;
- s += (IPPU.HalfWidthPixels ? (Offset + Count) >> 1 : (Offset + Count)) * GFX.PixSize;
- MaxCount = 8;
- }
- }
- }
-}
-
-static void DrawBackgroundMode5 (uint32 /* BGMODE */, uint32 bg, uint8 Z1, uint8 Z2)
-{
- CHECK_SOUND();
-
- if(IPPU.Interlace)
- {
- GFX.Pitch = GFX.RealPitch;
- GFX.PPL = GFX.PPLx2 >> 1;
- }
- GFX.PixSize = 1;
- uint8 depths [2] = {Z1, Z2};
-
- uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint32 Width;
-
- BG.StartPalette = 0;
-
- SC0 = (uint16 *) &Memory.VRAM[PPU.BG[bg].SCBase << 1];
-
- if ((PPU.BG[bg].SCSize & 1))
- SC1 = SC0 + 1024;
- else
- SC1 = SC0;
-
- if((SC1-(unsigned short*)Memory.VRAM)>0x10000)
- SC1=(uint16*)&Memory.VRAM[(((uint8*)SC1)-Memory.VRAM)%0x10000];
-
- if ((PPU.BG[bg].SCSize & 2))
- SC2 = SC1 + 1024;
- else SC2 = SC0;
-
- if(((uint8*)SC2-Memory.VRAM)>=0x10000)
- SC2-=0x08000;
-
-
-
- if ((PPU.BG[bg].SCSize & 1))
- SC3 = SC2 + 1024;
- else
- SC3 = SC2;
-
- if(((uint8*)SC3-Memory.VRAM)>=0x10000)
- SC3-=0x08000;
-
-
-
- int Lines;
- int VOffsetMask;
- int VOffsetShift;
-
- if (BG.TileSize == 16)
- {
- VOffsetMask = 0x3ff;
- VOffsetShift = 4;
- }
- else
- {
- VOffsetMask = 0x1ff;
- VOffsetShift = 3;
- }
- int endy = IPPU.Interlace ? 1 + (GFX.EndY << 1) : GFX.EndY;
-
- for (int Y = IPPU.Interlace ? GFX.StartY << 1 : GFX.StartY; Y <= endy; Y += Lines)
- {
- int y = IPPU.Interlace ? (Y >> 1) : Y;
- uint32 VOffset = LineData [y].BG[bg].VOffset;
- uint32 HOffset = LineData [y].BG[bg].HOffset;
- int VirtAlign = (Y + VOffset) & 7;
-
- for (Lines = 1; Lines < 8 - VirtAlign; Lines++)
- if ((VOffset != LineData [y + Lines].BG[bg].VOffset) ||
- (HOffset != LineData [y + Lines].BG[bg].HOffset))
- break;
-
- HOffset <<= 1;
- if (Y + Lines > endy)
- Lines = endy + 1 - Y;
- VirtAlign <<= 3;
-
- int ScreenLine = (VOffset + Y) >> VOffsetShift;
- int t1;
- int t2;
- if (((VOffset + Y) & 15) > 7)
- {
- t1 = 16;
- t2 = 0;
- }
- else
- {
- t1 = 0;
- t2 = 16;
- }
- uint16 *b1;
- uint16 *b2;
-
- if (ScreenLine & 0x20)
- b1 = SC2, b2 = SC3;
- else
- b1 = SC0, b2 = SC1;
-
- b1 += (ScreenLine & 0x1f) << 5;
- b2 += (ScreenLine & 0x1f) << 5;
-
- int clipcount = GFX.pCurrentClip->Count [bg];
- if (!clipcount)
- clipcount = 1;
- for (int clip = 0; clip < clipcount; clip++)
- {
- int Left;
- int Right;
-
- if (!GFX.pCurrentClip->Count [bg])
- {
- Left = 0;
- Right = 512;
- }
- else
- {
- Left = GFX.pCurrentClip->Left [clip][bg] * 2;
- Right = GFX.pCurrentClip->Right [clip][bg] * 2;
-
- if (Right <= Left)
- continue;
- }
-
- uint32 s = (IPPU.HalfWidthPixels ? Left >> 1 : Left) * GFX.PixSize + Y * GFX.PPL;
- uint32 HPos = (HOffset + Left * GFX.PixSize) & 0x3ff;
-
- uint32 Quot = HPos >> 3;
- uint32 Count = 0;
-
- uint16 *t;
- if (Quot > 63)
- t = b2 + ((Quot >> 1) & 0x1f);
- else
- t = b1 + (Quot >> 1);
-
- Width = Right - Left;
- // Left hand edge clipped tile
- if (HPos & 7)
- {
- int Offset = (HPos & 7);
- Count = 8 - Offset;
- if (Count > Width)
- Count = Width;
- s -= (IPPU.HalfWidthPixels ? Offset >> 1 : Offset);
- Tile = READ_2BYTES (t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- if (BG.TileSize == 8)
- {
- if (!(Tile & H_FLIP))
- {
- // Normal, unflipped
- (*DrawHiResClippedTilePtr) (Tile + (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- {
- // H flip
- (*DrawHiResClippedTilePtr) (Tile + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- }
- else
- {
- if (!(Tile & (V_FLIP | H_FLIP)))
- {
- // Normal, unflipped
- (*DrawHiResClippedTilePtr) (Tile + t1 + (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- if (Tile & H_FLIP)
- {
- if (Tile & V_FLIP)
- {
- // H & V flip
- (*DrawHiResClippedTilePtr) (Tile + t2 + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- {
- // H flip only
- (*DrawHiResClippedTilePtr) (Tile + t1 + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- }
- else
- {
- // V flip only
- (*DrawHiResClippedTilePtr) (Tile + t2 + (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- }
-
- t += Quot & 1;
- if (Quot == 63)
- t = b2;
- else if (Quot == 127)
- t = b1;
- Quot++;
- s += (IPPU.HalfWidthPixels ? 4 : 8);
- }
-
- // Middle, unclipped tiles
- Count = Width - Count;
- int Middle = Count >> 3;
- Count &= 7;
- for (int C = Middle; C > 0; s += (IPPU.HalfWidthPixels ? 4 : 8), Quot++, C--)
- {
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- if (BG.TileSize == 8)
- {
- if (!(Tile & H_FLIP))
- {
- // Normal, unflipped
- (*DrawHiResTilePtr) (Tile + (Quot & 1),
- s, VirtAlign, Lines);
- }
- else
- {
- // H flip
- (*DrawHiResTilePtr) (Tile + 1 - (Quot & 1),
- s, VirtAlign, Lines);
- }
- }
- else
- {
- if (!(Tile & (V_FLIP | H_FLIP)))
- {
- // Normal, unflipped
- (*DrawHiResTilePtr) (Tile + t1 + (Quot & 1),
- s, VirtAlign, Lines);
- }
- else
- if (Tile & H_FLIP)
- {
- if (Tile & V_FLIP)
- {
- // H & V flip
- (*DrawHiResTilePtr) (Tile + t2 + 1 - (Quot & 1),
- s, VirtAlign, Lines);
- }
- else
- {
- // H flip only
- (*DrawHiResTilePtr) (Tile + t1 + 1 - (Quot & 1),
- s, VirtAlign, Lines);
- }
- }
- else
- {
- // V flip only
- (*DrawHiResTilePtr) (Tile + t2 + (Quot & 1),
- s, VirtAlign, Lines);
- }
- }
-
- t += Quot & 1;
- if (Quot == 63)
- t = b2;
- else
- if (Quot == 127)
- t = b1;
- }
-
- // Right-hand edge clipped tiles
- if (Count)
- {
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- if (BG.TileSize == 8)
- {
- if (!(Tile & H_FLIP))
- {
- // Normal, unflipped
- (*DrawHiResClippedTilePtr) (Tile + (Quot & 1),
- s, 0, Count, VirtAlign, Lines);
- }
- else
- {
- // H flip
- (*DrawHiResClippedTilePtr) (Tile + 1 - (Quot & 1),
- s, 0, Count, VirtAlign, Lines);
- }
- }
- else
- {
- if (!(Tile & (V_FLIP | H_FLIP)))
- {
- // Normal, unflipped
- (*DrawHiResClippedTilePtr) (Tile + t1 + (Quot & 1),
- s, 0, Count, VirtAlign, Lines);
- }
- else
- if (Tile & H_FLIP)
- {
- if (Tile & V_FLIP)
- {
- // H & V flip
- (*DrawHiResClippedTilePtr) (Tile + t2 + 1 - (Quot & 1),
- s, 0, Count, VirtAlign, Lines);
- }
- else
- {
- // H flip only
- (*DrawHiResClippedTilePtr) (Tile + t1 + 1 - (Quot & 1),
- s, 0, Count, VirtAlign, Lines);
- }
- }
- else
- {
- // V flip only
- (*DrawHiResClippedTilePtr) (Tile + t2 + (Quot & 1),
- s, 0, Count, VirtAlign, Lines);
- }
- }
- }
- }
- }
- GFX.Pitch = IPPU.DoubleHeightPixels ? GFX.RealPitch * 2 : GFX.RealPitch;
- GFX.PPL = IPPU.DoubleHeightPixels ? GFX.PPLx2 : (GFX.PPLx2 >> 1);
-
-}
-
-static void DrawBackground (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
-#ifdef ACCUMULATE_JOYPAD
-/*
- * This call allows NDSSFC to synchronise the DS controller more often.
- * If porting a later version of Snes9x into NDSSFC, it is essential to
- * preserve it.
- */
- NDSSFCAccumulateJoypad ();
-#endif
- GFX.PixSize = 1;
-
- BG.TileSize = BGSizes [PPU.BG[bg].BGSize];
- BG.BitShift = BitShifts[BGMode][bg];
- BG.TileShift = TileShifts[BGMode][bg];
- BG.TileAddress = PPU.BG[bg].NameBase << 1;
- BG.NameSelect = 0;
- BG.Buffer = IPPU.TileCache [Depths [BGMode][bg]];
- BG.Buffered = IPPU.TileCached [Depths [BGMode][bg]];
- BG.PaletteShift = PaletteShifts[BGMode][bg];
- BG.PaletteMask = PaletteMasks[BGMode][bg];
- BG.DirectColourMode = (BGMode == 3 || BGMode == 4) && bg == 0 &&
- (GFX.r2130 & 1);
-
- if (PPU.BGMosaic [bg] && PPU.Mosaic > 1)
- {
- DrawBackgroundMosaic (BGMode, bg, Z1, Z2);
- return;
-
- }
- switch (BGMode)
- {
- case 2:
- case 4: // Used by Puzzle Bobble
- DrawBackgroundOffset (BGMode, bg, Z1, Z2);
- return;
-
- case 5:
- case 6: // XXX: is also offset per tile.
-// if (Settings.SupportHiRes)
-// {
- if (!Settings.SupportHiRes)
- SelectTileRenderer(TRUE /* normal */);
- DrawBackgroundMode5 (BGMode, bg, Z1, Z2);
- return;
-// }
- break;
- }
- CHECK_SOUND();
-
- uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint32 Width;
- uint8 depths [2] = {Z1, Z2};
-
- if (BGMode == 0)
- BG.StartPalette = bg << 5;
- else BG.StartPalette = 0;
-
- SC0 = (uint16 *) &Memory.VRAM[PPU.BG[bg].SCBase << 1];
-
- if (PPU.BG[bg].SCSize & 1)
- SC1 = SC0 + 1024;
- else
- SC1 = SC0;
-
- if(SC1>=(unsigned short*)(Memory.VRAM+0x10000))
- SC1=(uint16*)&Memory.VRAM[((uint8*)SC1-&Memory.VRAM[0])%0x10000];
-
- if (PPU.BG[bg].SCSize & 2)
- SC2 = SC1 + 1024;
- else
- SC2 = SC0;
-
- if(((uint8*)SC2-Memory.VRAM)>=0x10000)
- SC2-=0x08000;
-
- if (PPU.BG[bg].SCSize & 1)
- SC3 = SC2 + 1024;
- else
- SC3 = SC2;
-
- if(((uint8*)SC3-Memory.VRAM)>=0x10000)
- SC3-=0x08000;
-
-
-
- int Lines;
- int OffsetMask;
- int OffsetShift;
-
- if (BG.TileSize == 16)
- {
- OffsetMask = 0x3ff;
- OffsetShift = 4;
- }
- else
- {
- OffsetMask = 0x1ff;
- OffsetShift = 3;
- }
-
- for (uint32 Y = GFX.StartY; Y <= GFX.EndY; Y += Lines)
- {
- uint32 VOffset = LineData [Y].BG[bg].VOffset;
- uint32 HOffset = LineData [Y].BG[bg].HOffset;
- int VirtAlign = (Y + VOffset) & 7;
-
- for (Lines = 1; Lines < 8 - VirtAlign; Lines++)
- if ((VOffset != LineData [Y + Lines].BG[bg].VOffset) ||
- (HOffset != LineData [Y + Lines].BG[bg].HOffset))
- break;
-
- if (Y + Lines > GFX.EndY)
- Lines = GFX.EndY + 1 - Y;
-
- VirtAlign <<= 3;
-
- uint32 ScreenLine = (VOffset + Y) >> OffsetShift;
- uint32 t1;
- uint32 t2;
- if (((VOffset + Y) & 15) > 7)
- {
- t1 = 16;
- t2 = 0;
- }
- else
- {
- t1 = 0;
- t2 = 16;
- }
- uint16 *b1;
- uint16 *b2;
-
- if (ScreenLine & 0x20)
- b1 = SC2, b2 = SC3;
- else
- b1 = SC0, b2 = SC1;
-
- b1 += (ScreenLine & 0x1f) << 5;
- b2 += (ScreenLine & 0x1f) << 5;
-
- int clipcount = GFX.pCurrentClip->Count [bg];
- if (!clipcount)
- clipcount = 1;
- for (int clip = 0; clip < clipcount; clip++)
- {
- uint32 Left;
- uint32 Right;
-
- if (!GFX.pCurrentClip->Count [bg])
- {
- Left = 0;
- Right = 256;
- }
- else
- {
- Left = GFX.pCurrentClip->Left [clip][bg];
- Right = GFX.pCurrentClip->Right [clip][bg];
-
- if (Right <= Left)
- continue;
- }
-
- uint32 s = Left * GFX.PixSize + Y * GFX.PPL;
- uint32 HPos = (HOffset + Left) & OffsetMask;
-
- uint32 Quot = HPos >> 3;
- uint32 Count = 0;
-
- uint16 *t;
- if (BG.TileSize == 8)
- {
- if (Quot > 31)
- t = b2 + (Quot & 0x1f);
- else
- t = b1 + Quot;
- }
- else
- {
- if (Quot > 63)
- t = b2 + ((Quot >> 1) & 0x1f);
- else
- t = b1 + (Quot >> 1);
- }
-
- Width = Right - Left;
- // Left hand edge clipped tile
- if (HPos & 7)
- {
- uint32 Offset = (HPos & 7);
- Count = 8 - Offset;
- if (Count > Width)
- Count = Width;
- s -= Offset * GFX.PixSize;
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- if (BG.TileSize == 8)
- {
- (*DrawClippedTilePtr) (Tile, s, Offset, Count, VirtAlign,
- Lines);
- }
- else
- {
- if (!(Tile & (V_FLIP | H_FLIP)))
- {
- // Normal, unflipped
- (*DrawClippedTilePtr) (Tile + t1 + (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- if (Tile & H_FLIP)
- {
- if (Tile & V_FLIP)
- {
- // H & V flip
- (*DrawClippedTilePtr) (Tile + t2 + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- else
- {
- // H flip only
- (*DrawClippedTilePtr) (Tile + t1 + 1 - (Quot & 1),
- s, Offset, Count, VirtAlign, Lines);
- }
- }
- else
- {
- // V flip only
- (*DrawClippedTilePtr) (Tile + t2 + (Quot & 1), s,
- Offset, Count, VirtAlign, Lines);
- }
- }
-
- if (BG.TileSize == 8)
- {
- t++;
- if (Quot == 31)
- t = b2;
- else if (Quot == 63)
- t = b1;
- }
- else
- {
- t += Quot & 1;
- if (Quot == 63)
- t = b2;
- else if (Quot == 127)
- t = b1;
- }
- Quot++;
- s += (IPPU.HalfWidthPixels ? 4 : 8) * GFX.PixSize;
- }
-
- // Middle, unclipped tiles
- Count = Width - Count;
- int Middle = Count >> 3;
- Count &= 7;
- for (int C = Middle; C > 0; s += (IPPU.HalfWidthPixels ? 4 : 8) * GFX.PixSize, Quot++, C--)
- {
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- if (BG.TileSize != 8)
- {
- if (Tile & H_FLIP)
- {
- // Horizontal flip, but what about vertical flip ?
- if (Tile & V_FLIP)
- {
- // Both horzontal & vertical flip
- (*DrawTilePtr) (Tile + t2 + 1 - (Quot & 1), s,
- VirtAlign, Lines);
- }
- else
- {
- // Horizontal flip only
- (*DrawTilePtr) (Tile + t1 + 1 - (Quot & 1), s,
- VirtAlign, Lines);
- }
- }
- else
- {
- // No horizontal flip, but is there a vertical flip ?
- if (Tile & V_FLIP)
- {
- // Vertical flip only
- (*DrawTilePtr) (Tile + t2 + (Quot & 1), s,
- VirtAlign, Lines);
- }
- else
- {
- // Normal unflipped
- (*DrawTilePtr) (Tile + t1 + (Quot & 1), s,
- VirtAlign, Lines);
- }
- }
- }
- else
- {
- (*DrawTilePtr) (Tile, s, VirtAlign, Lines);
- }
-
- if (BG.TileSize == 8)
- {
- t++;
- if (Quot == 31)
- t = b2;
- else
- if (Quot == 63)
- t = b1;
- }
- else
- {
- t += Quot & 1;
- if (Quot == 63)
- t = b2;
- else
- if (Quot == 127)
- t = b1;
- }
- }
- // Right-hand edge clipped tiles
- if (Count)
- {
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- if (BG.TileSize == 8)
- (*DrawClippedTilePtr) (Tile, s, 0, Count, VirtAlign,
- Lines);
- else
- {
- if (!(Tile & (V_FLIP | H_FLIP)))
- {
- // Normal, unflipped
- (*DrawClippedTilePtr) (Tile + t1 + (Quot & 1), s, 0,
- Count, VirtAlign, Lines);
- }
- else if (Tile & H_FLIP)
- {
- if (Tile & V_FLIP)
- {
- // H & V flip
- (*DrawClippedTilePtr) (Tile + t2 + 1 - (Quot & 1),
- s, 0, Count, VirtAlign,
- Lines);
- }
- else
- {
- // H flip only
- (*DrawClippedTilePtr) (Tile + t1 + 1 - (Quot & 1),
- s, 0, Count, VirtAlign,
- Lines);
- }
- }
- else
- {
- // V flip only
- (*DrawClippedTilePtr) (Tile + t2 + (Quot & 1),
- s, 0, Count, VirtAlign,
- Lines);
- }
- }
- }
- }
- }
-}
-
-#define RENDER_BACKGROUND_MODE7(TYPE,FUNC) \
- uint16 *ScreenColors; \
- CHECK_SOUND(); \
-\
- uint8 *VRAM1 = Memory.VRAM + 1; \
- if (GFX.r2130 & 1) \
- { \
- if (IPPU.DirectColourMapsNeedRebuild) \
- S9xBuildDirectColourMaps (); \
- ScreenColors = DirectColourMaps [0]; \
- } \
- else \
- ScreenColors = IPPU.ScreenColors; \
-\
- int aa, cc; \
- int dir; \
- int startx, endx; \
- uint32 Left = 0; \
- uint32 Right = 256; \
- uint32 ClipCount = GFX.pCurrentClip->Count [bg]; \
-\
- if (!ClipCount) \
- ClipCount = 1; \
-\
- Screen += GFX.StartY * GFX.Pitch; \
- uint8 *Depth = GFX.DB + GFX.StartY * GFX.PPL; \
- struct SLineMatrixData *l = &LineMatrixData [GFX.StartY]; \
-\
- for (uint32 Line = GFX.StartY; Line <= GFX.EndY; Line++, Screen += GFX.Pitch, Depth += GFX.PPL, l++) \
- { \
- int yy; \
-\
- int32 HOffset = ((int32) LineData [Line].BG[0].HOffset << M7) >> M7; \
- int32 VOffset = ((int32) LineData [Line].BG[0].VOffset << M7) >> M7; \
-\
- int32 CentreX = ((int32) l->CentreX << M7) >> M7; \
- int32 CentreY = ((int32) l->CentreY << M7) >> M7; \
-\
- if (PPU.Mode7VFlip) \
- yy = 255 - (int) Line; \
- else \
- yy = Line; \
-\
- yy += CLIP_10_BIT_SIGNED(VOffset - CentreY); \
-\
- int BB = l->MatrixB * yy + (CentreX << 8); \
- int DD = l->MatrixD * yy + (CentreY << 8); \
-\
- for (uint32 clip = 0; clip < ClipCount; clip++) \
- { \
- if (GFX.pCurrentClip->Count [bg]) \
- { \
- Left = GFX.pCurrentClip->Left [clip][bg]; \
- Right = GFX.pCurrentClip->Right [clip][bg]; \
- if (Right <= Left) \
- continue; \
- } \
- TYPE *p = (TYPE *) Screen + Left; \
- uint8 *d = Depth + Left; \
-\
- if (PPU.Mode7HFlip) \
- { \
- startx = Right - 1; \
- endx = Left - 1; \
- dir = -1; \
- aa = -l->MatrixA; \
- cc = -l->MatrixC; \
- } \
- else \
- { \
- startx = Left; \
- endx = Right; \
- dir = 1; \
- aa = l->MatrixA; \
- cc = l->MatrixC; \
- } \
-\
- int xx = startx + CLIP_10_BIT_SIGNED(HOffset - CentreX); \
- int AA = l->MatrixA * xx; \
- int CC = l->MatrixC * xx; \
-\
- if (!PPU.Mode7Repeat) \
- { \
- for (int x = startx; x != endx; x += dir, AA += aa, CC += cc, p++, d++) \
- { \
- int X = ((AA + BB) >> 8) & 0x3ff; \
- int Y = ((CC + DD) >> 8) & 0x3ff; \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- *p = (FUNC); \
- *d = GFX.Z1; \
- } \
- } \
- } \
- else \
- { \
- for (int x = startx; x != endx; x += dir, AA += aa, CC += cc, p++, d++) \
- { \
- int X = ((AA + BB) >> 8); \
- int Y = ((CC + DD) >> 8); \
-\
- if (((X | Y) & ~0x3ff) == 0) \
- { \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- *p = (FUNC); \
- *d = GFX.Z1; \
- } \
- } \
- else \
- { \
- if (PPU.Mode7Repeat == 3) \
- { \
- X = (x + HOffset) & 7; \
- Y = (yy + CentreY) & 7; \
- uint32 b = *(VRAM1 + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- *p = (FUNC); \
- *d = GFX.Z1; \
- } \
- } \
- } \
- } \
- } \
- } \
- }
-
-static void DrawBGMode7Background (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7 (uint8, (uint8) (b & GFX.Mode7Mask))
-}
-
-static void DrawBGMode7Background16 (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7 (uint16, ScreenColors [b & GFX.Mode7Mask]);
-}
-
-static void DrawBGMode7Background16Add (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7 (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_ADD (ScreenColors [b & GFX.Mode7Mask],
- p [GFX.Delta]) :
- COLOR_ADD (ScreenColors [b & GFX.Mode7Mask],
- GFX.FixedColour)) :
- ScreenColors [b & GFX.Mode7Mask]);
-}
-
-static void DrawBGMode7Background16Add1_2 (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7 (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_ADD1_2 (ScreenColors [b & GFX.Mode7Mask],
- p [GFX.Delta]) :
- COLOR_ADD (ScreenColors [b & GFX.Mode7Mask],
- GFX.FixedColour)) :
- ScreenColors [b & GFX.Mode7Mask]);
-}
-
-static void DrawBGMode7Background16Sub (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7 (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_SUB (ScreenColors [b & GFX.Mode7Mask],
- p [GFX.Delta]) :
- COLOR_SUB (ScreenColors [b & GFX.Mode7Mask],
- GFX.FixedColour)) :
- ScreenColors [b & GFX.Mode7Mask]);
-}
-
-static void DrawBGMode7Background16Sub1_2 (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7 (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_SUB1_2 (ScreenColors [b & GFX.Mode7Mask],
- p [GFX.Delta]) :
- COLOR_SUB (ScreenColors [b & GFX.Mode7Mask],
- GFX.FixedColour)) :
- ScreenColors [b & GFX.Mode7Mask]);
-}
-
-#define RENDER_BACKGROUND_MODE7_i(TYPE,FUNC,COLORFUNC) \
- uint16 *ScreenColors; \
- CHECK_SOUND(); \
-\
- uint8 *VRAM1 = Memory.VRAM + 1; \
- if (GFX.r2130 & 1) \
- { \
- if (IPPU.DirectColourMapsNeedRebuild) \
- S9xBuildDirectColourMaps (); \
- ScreenColors = DirectColourMaps [0]; \
- } \
- else \
- ScreenColors = IPPU.ScreenColors; \
- \
- int aa, cc; \
- int dir; \
- int startx, endx; \
- uint32 Left = 0; \
- uint32 Right = 256; \
- uint32 ClipCount = GFX.pCurrentClip->Count [bg]; \
- \
- if (!ClipCount) \
- ClipCount = 1; \
- \
- Screen += GFX.StartY * GFX.Pitch; \
- uint8 *Depth = GFX.DB + GFX.StartY * GFX.PPL; \
- struct SLineMatrixData *l = &LineMatrixData [GFX.StartY]; \
- bool8 allowSimpleCase = FALSE; \
- if (!l->MatrixB && !l->MatrixC && (l->MatrixA == 0x0100) && (l->MatrixD == 0x0100) \
- && !LineMatrixData[GFX.EndY].MatrixB && !LineMatrixData[GFX.EndY].MatrixC \
- && (LineMatrixData[GFX.EndY].MatrixA == 0x0100) && (LineMatrixData[GFX.EndY].MatrixD == 0x0100) \
- ) \
- allowSimpleCase = TRUE; \
- \
- for (uint32 Line = GFX.StartY; Line <= GFX.EndY; Line++, Screen += GFX.Pitch, Depth += GFX.PPL, l++) \
- { \
- int yy; \
- \
- int HOffset = ((int) LineData [Line].BG[0].HOffset << M7) >> M7; \
- int VOffset = ((int) LineData [Line].BG[0].VOffset << M7) >> M7; \
- \
- int CentreX = ((int) l->CentreX << M7) >> M7; \
- int CentreY = ((int) l->CentreY << M7) >> M7; \
- \
- if (PPU.Mode7VFlip) \
- yy = 255 - (int) Line; \
- else \
- yy = Line; \
- \
- \
- yy += CLIP_10_BIT_SIGNED(VOffset - CentreY); \
- bool8 simpleCase = FALSE; \
- int BB; \
- int DD; \
- /* Make a special case for the identity matrix, since it's a common case and */ \
- /* can be done much more quickly without special effects */ \
- if (allowSimpleCase && !l->MatrixB && !l->MatrixC && (l->MatrixA == 0x0100) && (l->MatrixD == 0x0100)) \
- { \
- BB = CentreX << 8; \
- DD = (yy + CentreY) << 8; \
- simpleCase = TRUE; \
- } \
- else \
- { \
- BB = l->MatrixB * yy + (CentreX << 8); \
- DD = l->MatrixD * yy + (CentreY << 8); \
- } \
- \
- for (uint32 clip = 0; clip < ClipCount; clip++) \
- { \
- if (GFX.pCurrentClip->Count [bg]) \
- { \
- Left = GFX.pCurrentClip->Left [clip][bg]; \
- Right = GFX.pCurrentClip->Right [clip][bg]; \
- if (Right <= Left) \
- continue; \
- } \
- TYPE *p = (TYPE *) Screen + Left; \
- uint8 *d = Depth + Left; \
- \
- if (PPU.Mode7HFlip) \
- { \
- startx = Right - 1; \
- endx = Left - 1; \
- dir = -1; \
- aa = -l->MatrixA; \
- cc = -l->MatrixC; \
- } \
- else \
- { \
- startx = Left; \
- endx = Right; \
- dir = 1; \
- aa = l->MatrixA; \
- cc = l->MatrixC; \
- } \
- int xx; \
- \
- xx = startx + CLIP_10_BIT_SIGNED(HOffset - CentreX); \
- int AA, CC = 0; \
- if (simpleCase) \
- { \
- AA = xx << 8; \
- } \
- else \
- { \
- AA = l->MatrixA * xx; \
- CC = l->MatrixC * xx; \
- } \
- if (simpleCase) \
- { \
- if (!PPU.Mode7Repeat) \
- { \
- int x = startx; \
- do \
- { \
- int X = ((AA + BB) >> 8) & 0x3ff; \
- int Y = (DD >> 8) & 0x3ff; \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- TYPE theColor = COLORFUNC; \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- AA += aa, p++, d++; \
- x += dir; \
- } while (x != endx); \
- } \
- else \
- { \
- int x = startx; \
- do { \
- int X = (AA + BB) >> 8; \
- int Y = DD >> 8; \
-\
- if (((X | Y) & ~0x3ff) == 0) \
- { \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- TYPE theColor = COLORFUNC; \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- } \
- else if (PPU.Mode7Repeat == 3) \
- { \
- X = (x + HOffset) & 7; \
- Y = (yy + CentreY) & 7; \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- TYPE theColor = COLORFUNC; \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- } \
- AA += aa; p++; d++; \
- x += dir; \
- } while (x != endx); \
- } \
- } \
- else if (!PPU.Mode7Repeat) \
- { \
- /* The bilinear interpolator: get the colors at the four points surrounding */ \
- /* the location of one point in the _sampled_ image, and weight them according */ \
- /* to their (city block) distance. It's very smooth, but blurry with "close up" */ \
- /* points. */ \
- \
- /* 460 (slightly less than 2 source pixels per displayed pixel) is an educated */ \
- /* guess for where bilinear filtering will become a poor method for averaging. */ \
- /* (When reducing the image, the weighting used by a bilinear filter becomes */ \
- /* arbitrary, and a simple mean is a better way to represent the source image.) */ \
- /* You can think of this as a kind of mipmapping. */ \
- if ((aa < 460 && aa > -460) && (cc < 460 && cc > -460)) \
- {\
- for (int x = startx; x != endx; x += dir, AA += aa, CC += cc, p++, d++) \
- { \
- uint32 xPos = AA + BB; \
- uint32 xPix = xPos >> 8; \
- uint32 yPos = CC + DD; \
- uint32 yPix = yPos >> 8; \
- uint32 X = xPix & 0x3ff; \
- uint32 Y = yPix & 0x3ff; \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- /* X10 and Y01 are the X and Y coordinates of the next source point over. */ \
- uint32 X10 = (xPix + dir) & 0x3ff; \
- uint32 Y01 = (yPix + (PPU.Mode7VFlip?-1:1)) & 0x3ff; \
- uint8 *TileData10 = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X10 >> 2) & ~1)] << 7); \
- uint8 *TileData11 = VRAM1 + (Memory.VRAM[((Y01 & ~7) << 5) + ((X10 >> 2) & ~1)] << 7); \
- uint8 *TileData01 = VRAM1 + (Memory.VRAM[((Y01 & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 p1 = COLORFUNC; \
- p1 = (p1 & FIRST_THIRD_COLOR_MASK) | ((p1 & SECOND_COLOR_MASK) << 16); \
- b = *(TileData10 + ((Y & 7) << 4) + ((X10 & 7) << 1)); \
- uint32 p2 = COLORFUNC; \
- p2 = (p2 & FIRST_THIRD_COLOR_MASK) | ((p2 & SECOND_COLOR_MASK) << 16); \
- b = *(TileData11 + ((Y01 & 7) << 4) + ((X10 & 7) << 1)); \
- uint32 p4 = COLORFUNC; \
- p4 = (p4 & FIRST_THIRD_COLOR_MASK) | ((p4 & SECOND_COLOR_MASK) << 16); \
- b = *(TileData01 + ((Y01 & 7) << 4) + ((X & 7) << 1)); \
- uint32 p3 = COLORFUNC; \
- p3 = (p3 & FIRST_THIRD_COLOR_MASK) | ((p3 & SECOND_COLOR_MASK) << 16); \
- /* Xdel, Ydel: position (in 1/32nds) between the points */ \
- uint32 Xdel = (xPos >> 3) & 0x1F; \
- uint32 Ydel = (yPos >> 3) & 0x1F; \
- uint32 XY = (Xdel*Ydel) >> 5; \
- uint32 area1 = 0x20 + XY - Xdel - Ydel; \
- uint32 area2 = Xdel - XY; \
- uint32 area3 = Ydel - XY; \
- uint32 area4 = XY; \
- if(PPU.Mode7HFlip){ \
- uint32 tmp=area1; area1=area2; area2=tmp; \
- tmp=area3; area3=area4; area4=tmp; \
- } \
- if(PPU.Mode7VFlip){ \
- uint32 tmp=area1; area1=area3; area3=tmp; \
- tmp=area2; area2=area4; area4=tmp; \
- } \
- uint32 tempColor = ((area1 * p1) + \
- (area2 * p2) + \
- (area3 * p3) + \
- (area4 * p4)) >> 5; \
- TYPE theColor = (tempColor & FIRST_THIRD_COLOR_MASK) | ((tempColor >> 16) & SECOND_COLOR_MASK); \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- } \
- } \
- else \
- /* The oversampling method: get the colors at four corners of a square */ \
- /* in the _displayed_ image, and average them. It's sharp and clean, but */ \
- /* gives the usual huge pixels when the source image gets "close." */ \
- { \
- /* Find the dimensions of the square in the source image whose corners will be examined. */ \
- uint32 aaDelX = aa >> 1; \
- uint32 ccDelX = cc >> 1; \
- uint32 bbDelY = l->MatrixB >> 1; \
- uint32 ddDelY = l->MatrixD >> 1; \
- /* Offset the location within the source image so that the four sampled points */ \
- /* center around where the single point would otherwise have been drawn. */ \
- BB -= (bbDelY >> 1); \
- DD -= (ddDelY >> 1); \
- AA -= (aaDelX >> 1); \
- CC -= (ccDelX >> 1); \
- uint32 BB10 = BB + aaDelX; \
- uint32 BB01 = BB + bbDelY; \
- uint32 BB11 = BB + aaDelX + bbDelY; \
- uint32 DD10 = DD + ccDelX; \
- uint32 DD01 = DD + ddDelY; \
- uint32 DD11 = DD + ccDelX + ddDelY; \
- for (int x = startx; x != endx; x += dir, AA += aa, CC += cc, p++, d++) \
- { \
- uint32 X = ((AA + BB) >> 8) & 0x3ff; \
- uint32 Y = ((CC + DD) >> 8) & 0x3ff; \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- /* X, Y, X10, Y10, etc. are the coordinates of the four pixels within the */ \
- /* source image that we're going to examine. */ \
- uint32 X10 = ((AA + BB10) >> 8) & 0x3ff; \
- uint32 Y10 = ((CC + DD10) >> 8) & 0x3ff; \
- uint32 X01 = ((AA + BB01) >> 8) & 0x3ff; \
- uint32 Y01 = ((CC + DD01) >> 8) & 0x3ff; \
- uint32 X11 = ((AA + BB11) >> 8) & 0x3ff; \
- uint32 Y11 = ((CC + DD11) >> 8) & 0x3ff; \
- uint8 *TileData10 = VRAM1 + (Memory.VRAM[((Y10 & ~7) << 5) + ((X10 >> 2) & ~1)] << 7); \
- uint8 *TileData01 = VRAM1 + (Memory.VRAM[((Y01 & ~7) << 5) + ((X01 >> 2) & ~1)] << 7); \
- uint8 *TileData11 = VRAM1 + (Memory.VRAM[((Y11 & ~7) << 5) + ((X11 >> 2) & ~1)] << 7); \
- TYPE p1 = COLORFUNC; \
- b = *(TileData10 + ((Y10 & 7) << 4) + ((X10 & 7) << 1)); \
- TYPE p2 = COLORFUNC; \
- b = *(TileData01 + ((Y01 & 7) << 4) + ((X01 & 7) << 1)); \
- TYPE p3 = COLORFUNC; \
- b = *(TileData11 + ((Y11 & 7) << 4) + ((X11 & 7) << 1)); \
- TYPE p4 = COLORFUNC; \
- TYPE theColor = Q_INTERPOLATE(p1, p2, p3, p4); \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- } \
- } \
- } \
- else \
- { \
- for (int x = startx; x != endx; x += dir, AA += aa, CC += cc, p++, d++) \
- { \
- uint32 xPos = AA + BB; \
- uint32 xPix = xPos >> 8; \
- uint32 yPos = CC + DD; \
- uint32 yPix = yPos >> 8; \
- uint32 X = xPix; \
- uint32 Y = yPix; \
- \
-\
- if (((X | Y) & ~0x3ff) == 0) \
- { \
- uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- /* X10 and Y01 are the X and Y coordinates of the next source point over. */ \
- uint32 X10 = (xPix + dir) & 0x3ff; \
- uint32 Y01 = (yPix + dir) & 0x3ff; \
- uint8 *TileData10 = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X10 >> 2) & ~1)] << 7); \
- uint8 *TileData11 = VRAM1 + (Memory.VRAM[((Y01 & ~7) << 5) + ((X10 >> 2) & ~1)] << 7); \
- uint8 *TileData01 = VRAM1 + (Memory.VRAM[((Y01 & ~7) << 5) + ((X >> 2) & ~1)] << 7); \
- uint32 p1 = COLORFUNC; \
- p1 = (p1 & FIRST_THIRD_COLOR_MASK) | ((p1 & SECOND_COLOR_MASK) << 16); \
- b = *(TileData10 + ((Y & 7) << 4) + ((X10 & 7) << 1)); \
- uint32 p2 = COLORFUNC; \
- p2 = (p2 & FIRST_THIRD_COLOR_MASK) | ((p2 & SECOND_COLOR_MASK) << 16); \
- b = *(TileData11 + ((Y01 & 7) << 4) + ((X10 & 7) << 1)); \
- uint32 p4 = COLORFUNC; \
- p4 = (p4 & FIRST_THIRD_COLOR_MASK) | ((p4 & SECOND_COLOR_MASK) << 16); \
- b = *(TileData01 + ((Y01 & 7) << 4) + ((X & 7) << 1)); \
- uint32 p3 = COLORFUNC; \
- p3 = (p3 & FIRST_THIRD_COLOR_MASK) | ((p3 & SECOND_COLOR_MASK) << 16); \
- /* Xdel, Ydel: position (in 1/32nds) between the points */ \
- uint32 Xdel = (xPos >> 3) & 0x1F; \
- uint32 Ydel = (yPos >> 3) & 0x1F; \
- uint32 XY = (Xdel*Ydel) >> 5; \
- uint32 area1 = 0x20 + XY - Xdel - Ydel; \
- uint32 area2 = Xdel - XY; \
- uint32 area3 = Ydel - XY; \
- uint32 area4 = XY; \
- uint32 tempColor = ((area1 * p1) + \
- (area2 * p2) + \
- (area3 * p3) + \
- (area4 * p4)) >> 5; \
- TYPE theColor = (tempColor & FIRST_THIRD_COLOR_MASK) | ((tempColor >> 16) & SECOND_COLOR_MASK); \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- } \
- else \
- { \
- if (PPU.Mode7Repeat == 3) \
- { \
- X = (x + HOffset) & 7; \
- Y = (yy + CentreY) & 7; \
- uint32 b = *(VRAM1 + ((Y & 7) << 4) + ((X & 7) << 1)); \
- GFX.Z1 = Mode7Depths [(b & GFX.Mode7PriorityMask) >> 7]; \
- if (GFX.Z1 > *d && (b & GFX.Mode7Mask) ) \
- { \
- TYPE theColor = COLORFUNC; \
- *p = (FUNC) | ALPHA_BITS_MASK; \
- *d = GFX.Z1; \
- } \
- } \
- } \
- } \
- } \
- } \
- }
-
-STATIC uint32 Q_INTERPOLATE(uint32 A, uint32 B, uint32 C, uint32 D)
-{
- register uint32 x = ((A >> 2) & HIGH_BITS_SHIFTED_TWO_MASK) +
- ((B >> 2) & HIGH_BITS_SHIFTED_TWO_MASK) +
- ((C >> 2) & HIGH_BITS_SHIFTED_TWO_MASK) +
- ((D >> 2) & HIGH_BITS_SHIFTED_TWO_MASK);
- register uint32 y = (A & TWO_LOW_BITS_MASK) +
- (B & TWO_LOW_BITS_MASK) +
- (C & TWO_LOW_BITS_MASK) +
- (D & TWO_LOW_BITS_MASK);
- y = (y>>2) & TWO_LOW_BITS_MASK;
- return x+y;
-}
-
-static void DrawBGMode7Background16_i (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7_i (uint16, theColor, (ScreenColors[b & GFX.Mode7Mask]));
-}
-
-static void DrawBGMode7Background16Add_i (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7_i (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- (COLOR_ADD (theColor,
- p [GFX.Delta])) :
- (COLOR_ADD (theColor,
- GFX.FixedColour))) :
- theColor, (ScreenColors[b & GFX.Mode7Mask]));
-}
-
-static void DrawBGMode7Background16Add1_2_i (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7_i (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_ADD1_2 (theColor,
- p [GFX.Delta]) :
- COLOR_ADD (theColor,
- GFX.FixedColour)) :
- theColor, (ScreenColors[b & GFX.Mode7Mask]));
-}
-
-static void DrawBGMode7Background16Sub_i (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7_i (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_SUB (theColor,
- p [GFX.Delta]) :
- COLOR_SUB (theColor,
- GFX.FixedColour)) :
- theColor, (ScreenColors[b & GFX.Mode7Mask]));
-}
-
-static void DrawBGMode7Background16Sub1_2_i (uint8 *Screen, int bg)
-{
- RENDER_BACKGROUND_MODE7_i (uint16, *(d + GFX.DepthDelta) ?
- (*(d + GFX.DepthDelta) != 1 ?
- COLOR_SUB1_2 (theColor,
- p [GFX.Delta]) :
- COLOR_SUB (theColor,
- GFX.FixedColour)) :
- theColor, (ScreenColors[b & GFX.Mode7Mask]));
-}
-
-#define _BUILD_SETUP(F) \
-GFX.BuildPixel = BuildPixel##F; \
-GFX.BuildPixel2 = BuildPixel2##F; \
-GFX.DecomposePixel = DecomposePixel##F; \
-RED_LOW_BIT_MASK = RED_LOW_BIT_MASK_##F; \
-GREEN_LOW_BIT_MASK = GREEN_LOW_BIT_MASK_##F; \
-BLUE_LOW_BIT_MASK = BLUE_LOW_BIT_MASK_##F; \
-RED_HI_BIT_MASK = RED_HI_BIT_MASK_##F; \
-GREEN_HI_BIT_MASK = GREEN_HI_BIT_MASK_##F; \
-BLUE_HI_BIT_MASK = BLUE_HI_BIT_MASK_##F; \
-MAX_RED = MAX_RED_##F; \
-MAX_GREEN = MAX_GREEN_##F; \
-MAX_BLUE = MAX_BLUE_##F; \
-GREEN_HI_BIT = ((MAX_GREEN_##F + 1) >> 1); \
-SPARE_RGB_BIT_MASK = SPARE_RGB_BIT_MASK_##F; \
-RGB_LOW_BITS_MASK = (RED_LOW_BIT_MASK_##F | \
- GREEN_LOW_BIT_MASK_##F | \
- BLUE_LOW_BIT_MASK_##F); \
-RGB_HI_BITS_MASK = (RED_HI_BIT_MASK_##F | \
- GREEN_HI_BIT_MASK_##F | \
- BLUE_HI_BIT_MASK_##F); \
-RGB_HI_BITS_MASKx2 = ((RED_HI_BIT_MASK_##F | \
- GREEN_HI_BIT_MASK_##F | \
- BLUE_HI_BIT_MASK_##F) << 1); \
-RGB_REMOVE_LOW_BITS_MASK = ~RGB_LOW_BITS_MASK; \
-FIRST_COLOR_MASK = FIRST_COLOR_MASK_##F; \
-SECOND_COLOR_MASK = SECOND_COLOR_MASK_##F; \
-THIRD_COLOR_MASK = THIRD_COLOR_MASK_##F; \
-ALPHA_BITS_MASK = ALPHA_BITS_MASK_##F; \
-FIRST_THIRD_COLOR_MASK = FIRST_COLOR_MASK | THIRD_COLOR_MASK; \
-TWO_LOW_BITS_MASK = RGB_LOW_BITS_MASK | (RGB_LOW_BITS_MASK << 1); \
-HIGH_BITS_SHIFTED_TWO_MASK = (( (FIRST_COLOR_MASK | SECOND_COLOR_MASK | THIRD_COLOR_MASK) & \
- ~TWO_LOW_BITS_MASK ) >> 2);
-
-static void RenderScreen (uint8 *Screen, bool8 sub, bool8 force_no_add, uint8 D)
-{
- bool8 BG0;
- bool8 BG1;
- bool8 BG2;
- bool8 BG3;
- bool8 OB;
-
- GFX.S = Screen;
-
- if (!sub)
- {
- GFX.pCurrentClip = &IPPU.Clip [0];
- BG0 = ON_MAIN (0);
- BG1 = ON_MAIN (1);
- BG2 = ON_MAIN (2);
- BG3 = ON_MAIN (3);
- OB = ON_MAIN (4);
- }
- else
- {
- GFX.pCurrentClip = &IPPU.Clip [1];
- BG0 = ON_SUB (0);
- BG1 = ON_SUB (1);
- BG2 = ON_SUB (2);
- BG3 = ON_SUB (3);
- OB = ON_SUB (4);
- }
-
- sub |= force_no_add;
-
- switch (PPU.BGMode) {
- case 0:
- case 1:
- if (OB)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4));
- DrawOBJS (!sub, D);
- }
- if (BG0)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(0));
- DrawBackground (PPU.BGMode, 0, D + 10, D + 14);
- }
- if (BG1)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(1));
- DrawBackground (PPU.BGMode, 1, D + 9, D + 13);
- }
- if (BG2)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(2));
- DrawBackground (PPU.BGMode, 2, D + 3,
- PPU.BG3Priority ? D + 17 : D + 6);
- }
- if (BG3 && PPU.BGMode == 0)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(3));
- DrawBackground (PPU.BGMode, 3, D + 2, D + 5);
- }
- break;
- case 2:
- case 3:
- case 4:
- case 5:
- case 6:
- if (OB)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4));
- DrawOBJS (!sub, D);
- }
- if (BG0)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(0));
- DrawBackground (PPU.BGMode, 0, D + 5, D + 13);
- }
- if (BG1 && PPU.BGMode != 6)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(1));
- DrawBackground (PPU.BGMode, 1, D + 2, D + 9);
- }
- break;
- case 7:
- if (OB)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4));
- DrawOBJS (!sub, D);
- }
- if (BG0 || ((Memory.FillRAM [0x2133] & 0x40) && BG1))
- {
- int bg;
-
- if ((Memory.FillRAM [0x2133] & 0x40)&&BG1)
- {
- GFX.Mode7Mask = 0x7f;
- GFX.Mode7PriorityMask = 0x80;
- Mode7Depths [0] = (BG0?5:1) + D;
- Mode7Depths [1] = 9 + D;
- bg = 1;
- }
- else
- {
- GFX.Mode7Mask = 0xff;
- GFX.Mode7PriorityMask = 0;
- Mode7Depths [0] = 5 + D;
- Mode7Depths [1] = 5 + D;
- bg = 0;
- }
- if (sub || !SUB_OR_ADD(0))
- {
- if (!Settings.Mode7Interpolate)
- DrawBGMode7Background16 (Screen, bg);
- else
- DrawBGMode7Background16_i (Screen, bg);
- }
- else
- {
- if (GFX.r2131 & 0x80)
- {
- if (GFX.r2131 & 0x40)
- {
- if (!Settings.Mode7Interpolate)
- DrawBGMode7Background16Sub1_2 (Screen, bg);
- else
- DrawBGMode7Background16Sub1_2_i (Screen, bg);
- }
- else
- {
- if (!Settings.Mode7Interpolate)
- DrawBGMode7Background16Sub (Screen, bg);
- else
- DrawBGMode7Background16Sub_i (Screen, bg);
- }
- }
- else
- {
- if (GFX.r2131 & 0x40)
- {
- if (!Settings.Mode7Interpolate)
- DrawBGMode7Background16Add1_2 (Screen, bg);
- else
- DrawBGMode7Background16Add1_2_i (Screen, bg);
- }
- else
- {
- if (!Settings.Mode7Interpolate)
- DrawBGMode7Background16Add (Screen, bg);
- else
- DrawBGMode7Background16Add_i (Screen, bg);
- }
- }
- }
- }
- break;
- default:
- break;
- }
-}
-
-#include "font.h"
-
-void DisplayChar (uint8 *Screen, uint8 c)
-{
- int line = (((c & 0x7f) - 32) >> 4) * font_height;
- int offset = (((c & 0x7f) - 32) & 15) * font_width;
- int h, w;
- uint16 *s = (uint16 *) Screen;
- for (h = 0; h < font_height; h++, line++,
- s += GFX.PPL - font_width)
- {
- for (w = 0; w < font_width; w++, s++)
- {
- uint8 p = font [line][offset + w];
-
- if (p == '#')
- {
- /*
- if(Memory.Hacked)
- *s= BUILD_PIXEL(31,0,0);
- else if(Memory.Iffy)
- *s= BUILD_PIXEL(31,31,0);
- else if(Memory.Iformat==1)
- *s= BUILD_PIXEL(0,31,0);
- else if(Memory.Iformat==2)
- *s= BUILD_PIXEL(0,31,31);
- else *s = 0xffff;
- */
- *s=Settings.DisplayColor;
- }
- else
- if (p == '.')
- *s = BLACK;
- }
- }
-}
-
-static void S9xDisplayFrameRate ()
-{
- uint8 *Screen = GFX.Screen + 2 +
- (IPPU.RenderedScreenHeight - font_height - 1) * GFX.Pitch2;
- char string [10];
- int len = 5;
-
- sprintf (string, "%02d/%02d", IPPU.DisplayedRenderedFrameCount,
- (int) Memory.ROMFramesPerSecond);
-
- int i;
- for (i = 0; i < len; i++)
- {
- DisplayChar (Screen, string [i]);
- Screen += (font_width - 1) * sizeof (uint16);
- }
-}
-
-static void S9xDisplayString (const char *string)
-{
- uint8 *Screen = GFX.Screen + 2 +
- (IPPU.RenderedScreenHeight - font_height * 5) * GFX.Pitch2;
- int len = strlen (string);
- int max_chars = IPPU.RenderedScreenWidth / (font_width - 1);
- int char_count = 0;
- int i;
-
- for (i = 0; i < len; i++, char_count++)
- {
- if (char_count >= max_chars || string [i] < 32)
- {
- Screen -= (font_width - 1) * max_chars * sizeof (uint16);
- Screen += font_height * GFX.Pitch;
- if (Screen >= GFX.Screen + GFX.Pitch * IPPU.RenderedScreenHeight)
- break;
- char_count -= max_chars;
- }
- if (string [i] < 32)
- continue;
- DisplayChar (Screen, string [i]);
- Screen += (font_width - 1) * sizeof (uint16);
- }
-}
-
-void S9xUpdateScreen ()
-{
- int32 x2 = 1;
-
- GFX.S = GFX.Screen;
- GFX.r2131 = Memory.FillRAM [0x2131];
- GFX.r212c = Memory.FillRAM [0x212c];
- GFX.r212d = Memory.FillRAM [0x212d];
- GFX.r2130 = Memory.FillRAM [0x2130];
-
-#ifdef JP_FIX
-
- GFX.Pseudo = (Memory.FillRAM [0x2133] & 8) != 0 &&
- (GFX.r212c & 15) != (GFX.r212d & 15) &&
- (GFX.r2131 == 0x3f);
-
-#else
-
- GFX.Pseudo = (Memory.FillRAM [0x2133] & 8) != 0 &&
- (GFX.r212c & 15) != (GFX.r212d & 15) &&
- (GFX.r2131 & 0x3f) == 0;
-
-#endif
-
- if (IPPU.OBJChanged)
- S9xSetupOBJ ();
-
- if (PPU.RecomputeClipWindows)
- {
- ComputeClipWindows ();
- PPU.RecomputeClipWindows = FALSE;
- }
-
- GFX.StartY = IPPU.PreviousLine;
- if ((GFX.EndY = IPPU.CurrentLine - 1) >= PPU.ScreenHeight)
- GFX.EndY = PPU.ScreenHeight - 1;
-
- // XXX: Check ForceBlank? Or anything else?
- PPU.RangeTimeOver |= GFX.OBJLines[GFX.EndY].RTOFlags;
-
- uint32 starty = GFX.StartY;
- uint32 endy = GFX.EndY;
-
- if (Settings.SupportHiRes &&
- (PPU.BGMode == 5 || PPU.BGMode == 6 || IPPU.Interlace || IPPU.DoubleHeightPixels))
- {
- if (PPU.BGMode == 5 || PPU.BGMode == 6|| IPPU.Interlace)
- {
- IPPU.RenderedScreenWidth = 512;
- x2 = 2;
- }
-
- if (IPPU.DoubleHeightPixels)
- {
- starty = GFX.StartY * 2;
- endy = GFX.EndY * 2 + 1;
- }
-
- if ((PPU.BGMode == 5 || PPU.BGMode == 6) && !IPPU.DoubleWidthPixels)
- {
- // The game has switched from lo-res to hi-res mode part way down
- // the screen. Scale any existing lo-res pixels on screen
- for (register uint32 y = 0; y < starty; y++)
- {
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + 255;
- register uint16 *q = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + 510;
-
- for (register int x = 255; x >= 0; x--, p--, q -= 2)
- *q = *(q + 1) = *p;
- }
- IPPU.DoubleWidthPixels = TRUE;
- IPPU.HalfWidthPixels = FALSE;
- }
- // BJ: And we have to change the height if Interlace gets set,
- // too.
- if (IPPU.Interlace && !IPPU.DoubleHeightPixels)
- {
- starty = GFX.StartY * 2;
- endy = GFX.EndY * 2 + 1;
- IPPU.RenderedScreenHeight = PPU.ScreenHeight << 1;
- IPPU.DoubleHeightPixels = TRUE;
- GFX.Pitch2 = GFX.RealPitch;
- GFX.Pitch = GFX.RealPitch * 2;
- GFX.PPL = GFX.PPLx2 = GFX.RealPitch;
-
-
- // The game has switched from non-interlaced to interlaced mode
- // part way down the screen. Scale everything.
- for (register int32 y = (int32) GFX.StartY - 1; y >= 0; y--)
- {
- // memmove converted: Same malloc, different addresses, and identical addresses at line 0 [Neb]
- // DS2 DMA notes: This code path is unused [Neb]
- memcpy (GFX.Screen + y * 2 * GFX.Pitch2,
- GFX.Screen + y * GFX.Pitch2,
- GFX.Pitch2);
- // memmove converted: Same malloc, different addresses [Neb]
- memcpy (GFX.Screen + (y * 2 + 1) * GFX.Pitch2,
- GFX.Screen + y * GFX.Pitch2,
- GFX.Pitch2);
- }
- }
- }
- else if (!Settings.SupportHiRes)
- {
- if (PPU.BGMode == 5 || PPU.BGMode == 6 || IPPU.Interlace)
- {
- if (!IPPU.HalfWidthPixels)
- {
- // The game has switched from lo-res to hi-res mode part way down
- // the screen. Hi-res pixels must now be drawn at half width.
- IPPU.HalfWidthPixels = TRUE;
- }
- }
- else
- {
- if (IPPU.HalfWidthPixels)
- {
- // The game has switched from hi-res to lo-res mode part way down
- // the screen. Lo-res pixels must now be drawn at FULL width.
- IPPU.HalfWidthPixels = FALSE;
- }
- }
- }
-
- uint32 black = BLACK | (BLACK << 16);
-
- if (Settings.Transparency)
- {
- if (GFX.Pseudo)
- {
- GFX.r2131 = 0x5f;
- GFX.r212c &= (Memory.FillRAM [0x212d] | 0xf0);
- GFX.r212d |= (Memory.FillRAM [0x212c] & 0x0f);
- GFX.r2130 |= 2;
- }
-
- if (!PPU.ForcedBlanking && ADD_OR_SUB_ON_ANYTHING &&
- (GFX.r2130 & 0x30) != 0x30 &&
- !((GFX.r2130 & 0x30) == 0x10 && IPPU.Clip[1].Count[5] == 0))
- {
- struct ClipData *pClip;
-
- GFX.FixedColour = BUILD_PIXEL (IPPU.XB [PPU.FixedColourRed],
- IPPU.XB [PPU.FixedColourGreen],
- IPPU.XB [PPU.FixedColourBlue]);
-
- // Clear the z-buffer, marking areas 'covered' by the fixed
- // colour as depth 1.
- pClip = &IPPU.Clip [1];
-
- // Clear the z-buffer
- if (pClip->Count [5])
- {
- // Colour window enabled.
- for (uint32 y = starty; y <= endy; y++)
- {
- ZeroMemory (GFX.SubZBuffer + y * GFX.ZPitch, IPPU.RenderedScreenWidth);
- ZeroMemory (GFX.ZBuffer + y * GFX.ZPitch, IPPU.RenderedScreenWidth);
-
- if (IPPU.Clip [0].Count [5])
- {
- uint32 *p = (uint32 *) (GFX.SubScreen + y * GFX.Pitch2);
- uint32 *q = (uint32 *) ((uint16 *) p + IPPU.RenderedScreenWidth);
- while (p < q)
- *p++ = black;
- }
-
- for (uint32 c = 0; c < pClip->Count [5]; c++)
- {
- if (pClip->Right [c][5] > pClip->Left [c][5])
- {
- memset (GFX.SubZBuffer + y * GFX.ZPitch + pClip->Left [c][5] * x2,
- 1, (pClip->Right [c][5] - pClip->Left [c][5]) * x2);
-
- if (IPPU.Clip [0].Count [5])
- {
- // Blast, have to clear the sub-screen to the fixed-colour
- // because there is a colour window in effect clipping
- // the main screen that will allow the sub-screen
- // 'underneath' to show through.
-
- uint16 *p = (uint16 *) (GFX.SubScreen + y * GFX.Pitch2);
- uint16 *q = p + pClip->Right [c][5] * x2;
- p += pClip->Left [c][5] * x2;
-
- while (p < q)
- *p++ = (uint16) GFX.FixedColour;
- }
- }
- }
- }
- }
- else
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- ZeroMemory (GFX.ZBuffer + y * GFX.ZPitch, IPPU.RenderedScreenWidth);
- memset (GFX.SubZBuffer + y * GFX.ZPitch, 1, IPPU.RenderedScreenWidth);
-
- if (IPPU.Clip [0].Count [5])
- {
- // Blast, have to clear the sub-screen to the fixed-colour
- // because there is a colour window in effect clipping
- // the main screen that will allow the sub-screen
- // 'underneath' to show through.
-
- uint32 b = GFX.FixedColour | (GFX.FixedColour << 16);
- uint32 *p = (uint32 *) (GFX.SubScreen + y * GFX.Pitch2);
- uint32 *q = (uint32 *) ((uint16 *) p + IPPU.RenderedScreenWidth);
-
- while (p < q)
- *p++ = b;
- }
- }
- }
-
- if (ANYTHING_ON_SUB)
- {
- GFX.DB = GFX.SubZBuffer;
- RenderScreen (GFX.SubScreen, TRUE, TRUE, SUB_SCREEN_DEPTH);
- }
-
- if (IPPU.Clip [0].Count [5])
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2);
- register uint8 *d = GFX.SubZBuffer + y * GFX.ZPitch;
- register uint8 *e = d + IPPU.RenderedScreenWidth;
-
- while (d < e)
- {
- if (*d > 1)
- *p = *(p + GFX.Delta);
- else
- *p = BLACK;
- d++;
- p++;
- }
- }
- }
-
- GFX.DB = GFX.ZBuffer;
- RenderScreen (GFX.Screen, FALSE, FALSE, MAIN_SCREEN_DEPTH);
-
- if (SUB_OR_ADD(5))
- {
- uint32 back = IPPU.ScreenColors [0];
- uint32 Left = 0;
- uint32 Right = 256;
- uint32 Count;
-
- pClip = &IPPU.Clip [0];
- for (uint32 y = starty; y <= endy; y++)
- {
- if (!(Count = pClip->Count [5]))
- {
- Left = 0;
- Right = 256 * x2;
- Count = 1;
- }
-
- for (uint32 b = 0; b < Count; b++)
- {
- if (pClip->Count [5])
- {
- Left = pClip->Left [b][5] * x2;
- Right = pClip->Right [b][5] * x2;
- if (Right <= Left)
- continue;
- }
-
- if (GFX.r2131 & 0x80)
- {
- if (GFX.r2131 & 0x40)
- {
- // Subtract, halving the result.
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + Left;
- register uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- register uint8 *s = GFX.SubZBuffer + y * GFX.ZPitch + Left;
- register uint8 *e = d + Right;
- uint16 back_fixed = COLOR_SUB (back, GFX.FixedColour);
-
- d += Left;
- while (d < e)
- {
- if (*d == 0)
- {
- if (*s)
- {
- if (*s != 1)
- *p = COLOR_SUB1_2 (back, *(p + GFX.Delta));
- else
- *p = back_fixed;
- }
- else
- *p = (uint16) back;
- }
- d++;
- p++;
- s++;
- }
- }
- else
- {
- // Subtract
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + Left;
- register uint8 *s = GFX.SubZBuffer + y * GFX.ZPitch + Left;
- register uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- register uint8 *e = d + Right;
- uint16 back_fixed = COLOR_SUB (back, GFX.FixedColour);
-
- d += Left;
- while (d < e)
- {
- if (*d == 0)
- {
- if (*s)
- {
- if (*s != 1)
- *p = COLOR_SUB (back, *(p + GFX.Delta));
- else
- *p = back_fixed;
- }
- else
- *p = (uint16) back;
- }
- d++;
- p++;
- s++;
- }
- }
- }
- else if (GFX.r2131 & 0x40)
- {
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + Left;
- register uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- register uint8 *s = GFX.SubZBuffer + y * GFX.ZPitch + Left;
- register uint8 *e = d + Right;
- uint16 back_fixed = COLOR_ADD (back, GFX.FixedColour);
- d += Left;
- while (d < e)
- {
- if (*d == 0)
- {
- if (*s)
- {
- if (*s != 1)
- *p = COLOR_ADD1_2 (back, *(p + GFX.Delta));
- else
- *p = back_fixed;
- }
- else
- *p = (uint16) back;
- }
- d++;
- p++;
- s++;
- }
- }
- else if (back != 0)
- {
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + Left;
- register uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- register uint8 *s = GFX.SubZBuffer + y * GFX.ZPitch + Left;
- register uint8 *e = d + Right;
- uint16 back_fixed = COLOR_ADD (back, GFX.FixedColour);
- d += Left;
- while (d < e)
- {
- if (*d == 0)
- {
- if (*s)
- {
- if (*s != 1)
- *p = COLOR_ADD (back, *(p + GFX.Delta));
- else
- *p = back_fixed;
- }
- else
- *p = (uint16) back;
- }
- d++;
- p++;
- s++;
- }
- }
- else
- {
- if (!pClip->Count [5])
- {
- // The backdrop has not been cleared yet - so
- // copy the sub-screen to the main screen
- // or fill it with the back-drop colour if the
- // sub-screen is clear.
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + Left;
- register uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- register uint8 *s = GFX.SubZBuffer + y * GFX.ZPitch + Left;
- register uint8 *e = d + Right;
- d += Left;
- while (d < e)
- {
- if (*d == 0)
- {
- if (*s)
- {
- if (*s != 1)
- *p = *(p + GFX.Delta);
- else
- *p = GFX.FixedColour;
- }
- else
- *p = (uint16) back;
- }
- d++;
- p++;
- s++;
- }
- }
- }
- }
- }
- } // --if (SUB_OR_ADD(5))
- else
- {
- // Subscreen not being added to back
- uint32 back = IPPU.ScreenColors [0] | (IPPU.ScreenColors [0] << 16);
- pClip = &IPPU.Clip [0];
-
- if (pClip->Count [5])
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- for (uint32 b = 0; b < pClip->Count [5]; b++)
- {
- uint32 Left = pClip->Left [b][5] * x2;
- uint32 Right = pClip->Right [b][5] * x2;
- uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + Left;
- uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- uint8 *e = d + Right;
- d += Left;
-
- while (d < e)
- {
- if (*d == 0)
- *p = (int16) back;
- d++;
- p++;
- }
- }
- }
- }
- else
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2);
- uint8 *d = GFX.ZBuffer + y * GFX.ZPitch;
- uint8 *e = d + 256 * x2;
-
- while (d < e)
- {
- if (*d == 0)
- *p = (int16) back;
- d++;
- p++;
- }
- }
- }
- }
- } //force blanking
- else
- {
- // 16bit and transparency but currently no transparency effects in
- // operation.
-
- uint32 back = IPPU.ScreenColors [0] | (IPPU.ScreenColors [0] << 16);
-
- if (PPU.ForcedBlanking)
- back = black;
-
- if (IPPU.Clip [0].Count[5])
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- uint32 *p = (uint32 *) (GFX.Screen + y * GFX.Pitch2);
- uint32 *q = (uint32 *) ((uint16 *) p + IPPU.RenderedScreenWidth);
-
- while (p < q)
- *p++ = black;
-
- for (uint32 c = 0; c < IPPU.Clip [0].Count [5]; c++)
- {
- if (IPPU.Clip [0].Right [c][5] > IPPU.Clip [0].Left [c][5])
- {
- uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2);
- uint16 *q = p + IPPU.Clip [0].Right [c][5] * x2;
- p += IPPU.Clip [0].Left [c][5] * x2;
-
- while (p < q)
- *p++ = (uint16) back;
- }
- }
- }
- }
- else
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- uint32 *p = (uint32 *) (GFX.Screen + y * GFX.Pitch2);
- uint32 *q = (uint32 *) ((uint16 *) p + IPPU.RenderedScreenWidth);
- while (p < q)
- *p++ = back;
- }
- }
-
- if (!PPU.ForcedBlanking)
- {
- for (uint32 y = starty; y <= endy; y++)
- {
- ZeroMemory (GFX.ZBuffer + y * GFX.ZPitch, IPPU.RenderedScreenWidth);
- }
- GFX.DB = GFX.ZBuffer;
- RenderScreen (GFX.Screen, FALSE, TRUE, SUB_SCREEN_DEPTH);
- }
- }
- }
- else
- {
- }
-
- if (Settings.SupportHiRes)
- {
- if (PPU.BGMode != 5 && PPU.BGMode != 6 && IPPU.DoubleWidthPixels)
- {
- // Mixure of background modes used on screen - scale width
- // of all non-mode 5 and 6 pixels.
- for (register uint32 y = starty; y <= endy; y++)
- {
- register uint16 *p = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + 255;
- register uint16 *q = (uint16 *) (GFX.Screen + y * GFX.Pitch2) + 510;
- for (register int x = 255; x >= 0; x--, p--, q -= 2)
- *q = *(q + 1) = *p;
- }
- }
-
- // Double the height of the pixels just drawn
- FIX_INTERLACE(GFX.Screen, FALSE, GFX.ZBuffer);
- }
-
- IPPU.PreviousLine = IPPU.CurrentLine;
-}
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-16 10:14:20 +0000