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-/*
- * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
- *
- * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
- * Jerremy Koot (jkoot@snes9x.com)
- *
- * Super FX C emulator code
- * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
- * Gary Henderson.
- * Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
- *
- * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
- * C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
- * C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
- *
- * DOS port code 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 <stdint.h>
-#include "asmmemfuncs.h"
-#include "mode7.h"
-#include "rops.h"
-#include "tile16.h"
-uint32 TileBlank;
-
-const int tx_table[16] = {
-// t1 = 16, t2 = 0
- // FLIP = 0x00
- 16 + 0, // 0x00
- 16 + 1, // 0x01
-
- // FLIP = 0x01
- 16 + 1 - 0, // 0x02
- 16 + 1 - 1, // 0x03
-
- // FLIP = 0x02
- 0 + 0, // 0x04
- 0 + 1, // 0x05
-
- // FLIP = 0x03
- 0 + 1 - 0, // 0x06
- 0 + 1 - 1, // 0x07
-
-// t1 = 0, t2 = 16
- // FLIP = 0x00
- 0 + 0, // 0x08
- 0 + 1, // 0x09
-
- // FLIP = 0x01
- 0 + 1 - 0, // 0x0A
- 0 + 1 - 1, // 0x0B
-
- // FLIP = 0x02
- 16 + 0, // 0x0C
- 16 + 1, // 0x0D
-
- // FLIP = 0x03
- 16 + 1 - 0, // 0x0E
- 16 + 1 - 1 // 0x0F
-};
-
-#define M7 19
-#define M8 19
-
-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 ON_MAIN(N) (GFX.r212c & (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)))
-
-#define ANYTHING_ON_SUB \
-((GFX.r2130 & 0x30) != 0x30 && \
- (GFX.r2130 & 2) && \
- (GFX.r212d & 0x1f))
-
-#define ADD_OR_SUB_ON_ANYTHING \
-(GFX.r2131 & 0x3f)
-
-#define BLACK BUILD_PIXEL(0,0,0)
-
-void DrawNoZTile16 (uint32 Tile, uint32 Offset, uint32 StartLine, uint32 LineCount);
-void DrawTile16 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawTile16x2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16x2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawTile16x2x2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-void DrawClippedTile16x2x2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-void DrawLargePixel16 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawNoZTile16Add (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawTile16Add (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Add (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawNoZTile16Add1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawTile16Add1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Add1_2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16FixedAdd1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16FixedAdd1_2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawNoZTile16Sub (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-
-void DrawTile16Sub (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Sub (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawNoZTile16Sub1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-
-void DrawTile16Sub1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16Sub1_2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawTile16FixedSub1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
- uint32 LineCount);
-
-void DrawClippedTile16FixedSub1_2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Add (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Add1_2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Sub (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawLargePixel16Sub1_2 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
-
-void DrawHiResClippedTile16 (uint32 Tile, uint32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-
-void DrawHiResTile16 (uint32 Tile, uint32 Offset,
- uint32 StartLine, uint32 LineCount);
-
-bool8_32 S9xGraphicsInit ()
-{
- register uint32 PixelOdd = 1;
- register uint32 PixelEven = 2;
-
-#ifdef GFX_MULTI_FORMAT
- if (GFX.BuildPixel == NULL)
- S9xSetRenderPixelFormat (RGB565);
-#endif
-
- 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)
-// Wiz usa 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.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;
- DrawTilePtr = DrawTile16;
- DrawClippedTilePtr = DrawClippedTile16;
- DrawLargePixelPtr = DrawLargePixel16;
- DrawHiResTilePtr= DrawHiResTile16;
- DrawHiResClippedTilePtr = DrawHiResClippedTile16;
- 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 (IPPU.RenderThisFrame)
- {
-#ifndef _SNESPPC
- if (!S9xInitUpdate ())
- {
- IPPU.RenderThisFrame = FALSE;
- return;
- }
-#endif
- IPPU.RenderedFramesCount++;
- IPPU.PreviousLine = IPPU.CurrentLine = 0;
- IPPU.MaxBrightness = PPU.Brightness;
- IPPU.LatchedBlanking = PPU.ForcedBlanking;
- IPPU.LatchedInterlace = (Memory.FillRAM[0x2133] & 1);
- IPPU.RenderedScreenWidth = 256;
- IPPU.RenderedScreenHeight = PPU.ScreenHeight;
- IPPU.DoubleWidthPixels = FALSE;
-
- 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;
- }
-}
-
-
-void S9xEndScreenRefresh()
-{
- IPPU.HDMAStarted = FALSE;
-
-//RC
- if (IPPU.RenderThisFrame)
- {
- FLUSH_REDRAW ();
- //if (IPPU.ColorsChanged)
- //{
- IPPU.ColorsChanged = FALSE;
- //}
-
-
- S9xDeinitUpdate (IPPU.RenderedScreenWidth, IPPU.RenderedScreenHeight,
- 1);
- }
-#ifndef RC_OPTIMIZED
- S9xApplyCheats ();
-#endif
-
-
-#ifdef DEBUGGER
- if (CPU.Flags & FRAME_ADVANCE_FLAG)
- {
- if (ICPU.FrameAdvanceCount)
- {
- ICPU.FrameAdvanceCount--;
- IPPU.RenderThisFrame = TRUE;
- IPPU.FrameSkip = 0;
- }
- else
- {
- CPU.Flags &= ~FRAME_ADVANCE_FLAG;
- CPU.Flags |= DEBUG_MODE_FLAG;
- }
- }
-#endif
-
-/*
- if (CPU.SRAMModified)
- {
- if (!CPU.AutoSaveTimer)
- {
- if (!(CPU.AutoSaveTimer = Settings.AutoSaveDelay * Memory.ROMFramesPerSecond))
- CPU.SRAMModified = FALSE;
- }
- else
- {
- if (!--CPU.AutoSaveTimer)
- {
- S9xAutoSaveSRAM ();
- CPU.SRAMModified = FALSE;
- }
- }
- }
-*/
-}
-
-void S9xSetInfoString (const char *string)
-{
- }
-
-
-
-int TileRenderer;
-TileRendererSet TileRenderers[] = {
- {DrawTile16Add, DrawClippedTile16Add, DrawLargePixel16Add}, // 0 -> GFX.r2131:7 = 0, GFX.r2131:6 = 0, GFX.r2130:1 = 0
- {DrawTile16Add, DrawClippedTile16Add, DrawLargePixel16Add}, // 1 -> GFX.r2131:7 = 0, GFX.r2131:6 = 0, GFX.r2130:1 = 1
- {DrawTile16FixedAdd1_2, DrawClippedTile16FixedAdd1_2, DrawLargePixel16Add1_2}, // 2 -> GFX.r2131:7 = 0, GFX.r2131:6 = 1, GFX.r2130:1 = 0
- {DrawTile16Add1_2, DrawClippedTile16Add1_2, DrawLargePixel16Add1_2}, // 3 -> GFX.r2131:7 = 0, GFX.r2131:6 = 1, GFX.r2130:1 = 1
- {DrawTile16Sub, DrawClippedTile16Sub, DrawLargePixel16Sub}, // 4 -> GFX.r2131:7 = 1, GFX.r2131:6 = 0, GFX.r2130:1 = 0
- {DrawTile16Sub, DrawClippedTile16Sub, DrawLargePixel16Sub}, // 5 -> GFX.r2131:7 = 1, GFX.r2131:6 = 0, GFX.r2130:1 = 1
- {DrawTile16FixedSub1_2, DrawClippedTile16FixedSub1_2, DrawLargePixel16Sub1_2}, // 6 -> GFX.r2131:7 = 1, GFX.r2131:6 = 1, GFX.r2130:1 = 0
- {DrawTile16Sub1_2, DrawClippedTile16Sub1_2, DrawLargePixel16Sub1_2}, // 7 -> GFX.r2131:7 = 1, GFX.r2131:6 = 1, GFX.r2130:1 = 1
- {DrawTile16, DrawClippedTile16, DrawLargePixel16} // 8 -> normal
- };
-TileRendererSet TileRenderersNoZ[] = {
- {DrawNoZTile16Add, DrawClippedTile16Add, DrawLargePixel16Add}, // 0 -> GFX.r2131:7 = 0, GFX.r2131:6 = 0, GFX.r2130:1 = 0
- {DrawNoZTile16Add, DrawClippedTile16Add, DrawLargePixel16Add}, // 1 -> GFX.r2131:7 = 0, GFX.r2131:6 = 0, GFX.r2130:1 = 1
- {DrawTile16FixedAdd1_2, DrawClippedTile16FixedAdd1_2, DrawLargePixel16Add1_2}, // 2 -> GFX.r2131:7 = 0, GFX.r2131:6 = 1, GFX.r2130:1 = 0
- {DrawNoZTile16Add1_2, DrawClippedTile16Add1_2, DrawLargePixel16Add1_2}, // 3 -> GFX.r2131:7 = 0, GFX.r2131:6 = 1, GFX.r2130:1 = 1
- {DrawNoZTile16Sub, DrawClippedTile16Sub, DrawLargePixel16Sub}, // 4 -> GFX.r2131:7 = 1, GFX.r2131:6 = 0, GFX.r2130:1 = 0
- {DrawNoZTile16Sub, DrawClippedTile16Sub, DrawLargePixel16Sub}, // 5 -> GFX.r2131:7 = 1, GFX.r2131:6 = 0, GFX.r2130:1 = 1
- {DrawTile16FixedSub1_2, DrawClippedTile16FixedSub1_2, DrawLargePixel16Sub1_2}, // 6 -> GFX.r2131:7 = 1, GFX.r2131:6 = 1, GFX.r2130:1 = 0
- {DrawNoZTile16Sub1_2, DrawClippedTile16Sub1_2, DrawLargePixel16Sub1_2}, // 7 -> GFX.r2131:7 = 1, GFX.r2131:6 = 1, GFX.r2130:1 = 1
- {DrawNoZTile16, DrawClippedTile16, DrawLargePixel16} // 8 -> normal
- };
-INLINE void SelectTileRenderer (bool8_32 normal, bool NoZ = false)
-{
- if (normal) {
- TileRenderer = 8;
- }
- else {
- TileRenderer = (((GFX.r2131 >> 5) & 0x06) | ((GFX.r2130 >> 1) & 1));
- }
-
-#ifdef __DEBUG__
- char *TRName[] = {
- "Add", "Add", "FixedAdd1_2", "Add1_2",
- "Sub", "Sub", "FixedSub1_2", "Sub1_2",
- "Normal"
- };
- printf("SelectTileRenderer: %s\n", TRName[TileRenderer]);
-#endif
-
- if (NoZ) {
- DrawTilePtr = TileRenderersNoZ[TileRenderer].Normal;
- DrawClippedTilePtr = TileRenderersNoZ[TileRenderer].Clipped;
- DrawLargePixelPtr = TileRenderersNoZ[TileRenderer].Large;
- }
- else {
- DrawTilePtr = TileRenderers[TileRenderer].Normal;
- DrawClippedTilePtr = TileRenderers[TileRenderer].Clipped;
- DrawLargePixelPtr = TileRenderers[TileRenderer].Large;
- }
-}
-
-void S9xSetupOBJ ()
-{
- int SmallSize;
- int LargeSize;
-
- switch (PPU.OBJSizeSelect)
- {
- case 0:
- SmallSize = 8;
- LargeSize = 16;
- break;
- case 1:
- SmallSize = 8;
- LargeSize = 32;
- break;
- case 2:
- SmallSize = 8;
- LargeSize = 64;
- break;
- case 3:
- SmallSize = 16;
- LargeSize = 32;
- break;
- case 4:
- SmallSize = 16;
- LargeSize = 64;
- break;
- case 5:
- default:
- SmallSize = 32;
- LargeSize = 64;
- break;
- }
-
- int C = 0;
-
- int FirstSprite = PPU.FirstSprite & 0x7f;
- int S = FirstSprite;
- do
- {
- int Size;
- if (PPU.OBJ [S].Size)
- Size = LargeSize;
- else
- Size = SmallSize;
-
- long VPos = PPU.OBJ [S].VPos;
-
- if (VPos >= PPU.ScreenHeight)
- VPos -= 256;
- if (PPU.OBJ [S].HPos < 256 && PPU.OBJ [S].HPos > -Size &&
- VPos < PPU.ScreenHeight && VPos > -Size)
- {
- int x = 0;
- int a, b;
- //GFX.OBJList[C++] = S;
- // -- Sort objects (from low to high priority)
- while (x < C) {
- a = GFX.OBJList[x];
- if (PPU.OBJ[a].Priority >= PPU.OBJ[S].Priority) break;
- x++;
- }
-
- GFX.OBJList[x] = S;
- x++; C++;
-
- while (x < C) {
- b = GFX.OBJList[x];
- GFX.OBJList[x] = a;
- a = b;
- x++;
- }
- // --
- GFX.Sizes[S] = Size;
- GFX.VPositions[S] = VPos;
- }
- S = (S + 1) & 0x7f;
- } while (S != FirstSprite);
-
- // Terminate the list
- GFX.OBJList [C] = -1;
- IPPU.OBJChanged = FALSE;
-}
-
-void DrawOBJS (bool8_32 OnMain = FALSE, uint8 D = 0)
-{
- int bg_ta_ns;
- int bg_ta;
- uint32 O;
- uint32 BaseTile, Tile;
-
- CHECK_SOUND();
-
- BG.BitShift = 4;
- SelectConvertTile();
- 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;
-
- SelectPalette();
- bg_ta = PPU.OBJNameBase;
- bg_ta_ns = bg_ta + PPU.OBJNameSelect;
-
- GFX.Z1 = D + 2;
-
- int I = 0;
- for (int S = GFX.OBJList [I++]; S >= 0; S = GFX.OBJList [I++])
- {
- int VPos = GFX.VPositions [S];
- int Size = GFX.Sizes[S];
- int TileInc = 1;
- int Offset;
-
- if (VPos + Size <= (int) GFX.StartY || VPos > (int) GFX.EndY)
- continue;
-
- if (OnMain && SUB_OR_ADD(4))
- {
- SelectTileRenderer (!GFX.Pseudo && PPU.OBJ [S].Palette < 4, true);
- }
-
- BaseTile = PPU.OBJ[S].Name | (PPU.OBJ[S].Palette << 10);
-
- if (PPU.OBJ[S].HFlip)
- {
- BaseTile += ((Size >> 3) - 1) | H_FLIP;
- TileInc = -1;
- }
-
- if (PPU.OBJ[S].VFlip) BaseTile |= V_FLIP;
- //BaseTile |= PPU.OBJ[S].VFlip << 15;
-
- int clipcount = GFX.pCurrentClip->Count [4];
- if (!clipcount) clipcount = 1;
-
- GFX.Z2 = (PPU.OBJ[S].Priority + 1) * 4 + D;
-
- for (int clip = 0; clip < clipcount; clip++)
- {
- int Left;
- int Right;
- if (!GFX.pCurrentClip->Count [4])
- {
- Left = 0;
- Right = 256;
- }
- else
- {
- Left = GFX.pCurrentClip->Left [clip][4];
- Right = GFX.pCurrentClip->Right [clip][4];
- }
-
- if (Right <= Left || PPU.OBJ[S].HPos + Size <= Left ||
- PPU.OBJ[S].HPos >= Right)
- continue;
-
- for (int Y = 0; Y < Size; Y += 8)
- {
- if (VPos + Y + 7 >= (int) GFX.StartY && VPos + Y <= (int) GFX.EndY)
- {
- int StartLine;
- int TileLine;
- int LineCount;
- int Last;
-
- if ((StartLine = VPos + Y) < (int) GFX.StartY)
- {
- StartLine = GFX.StartY - StartLine;
- LineCount = 8 - StartLine;
- }
- else
- {
- StartLine = 0;
- LineCount = 8;
- }
- if ((Last = VPos + Y + 7 - GFX.EndY) > 0)
- if ((LineCount -= Last) <= 0)
- break;
-
- TileLine = StartLine << 3;
-
- O = (VPos + Y + StartLine) * GFX_PPL;
- if (!PPU.OBJ[S].VFlip) Tile = BaseTile + (Y << 1);
- else Tile = BaseTile + ((Size - Y - 8) << 1);
-
- if (Tile & 0x100) BG.TileAddress = bg_ta_ns;
- else BG.TileAddress = bg_ta;
-
- int Middle = Size >> 3;
- if (PPU.OBJ[S].HPos < Left)
- {
- Tile += ((Left - PPU.OBJ[S].HPos) >> 3) * TileInc;
- Middle -= (Left - PPU.OBJ[S].HPos) >> 3;
- O += Left * GFX_PIXSIZE;
- if ((Offset = (Left - PPU.OBJ[S].HPos) & 7))
- {
- O -= Offset * GFX_PIXSIZE;
- int W = 8 - Offset;
- int Width = Right - Left;
- if (W > Width) W = Width;
- //if (Tile & 0x100) BG.TileAddress = bg_ta_ns;
- //else BG.TileAddress = bg_ta;
- (*DrawClippedTilePtr) (Tile, O, Offset, W, TileLine, LineCount);
-
- if (W >= Width)
- continue;
- Tile += TileInc;
- Middle--;
- O += 8 * GFX_PIXSIZE;
- }
- }
- else
- O += PPU.OBJ[S].HPos * GFX_PIXSIZE;
-
- if (PPU.OBJ[S].HPos + Size >= Right)
- {
- Middle -= ((PPU.OBJ[S].HPos + Size + 7) -
- Right) >> 3;
- Offset = (Right - (PPU.OBJ[S].HPos + Size)) & 7;
- }
- else
- Offset = 0;
-
- for (int X = 0; X < Middle; X++, O += 8 * GFX_PIXSIZE,
- Tile += TileInc)
- {
- //if (Tile & 0x100) BG.TileAddress = bg_ta_ns;
- //else BG.TileAddress = bg_ta;
- (*DrawTilePtr) (Tile, O, TileLine, LineCount);
- }
- if (Offset)
- {
- //if (Tile & 0x100) BG.TileAddress = bg_ta_ns;
- //else BG.TileAddress = bg_ta;
- (*DrawClippedTilePtr) (Tile, O, 0, Offset, TileLine, LineCount);
- }
- }
- }
- }
- }
-}
-void DrawBackgroundMosaic (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
-#ifdef __DEBUG__
- printf("DrawBackgroundMosaic(%i, %i, %i, %i)\n", BGMode, bg, Z1, Z2);
-#endif
- 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;
- SelectPalette();
-
- 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;
- }
-
- 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;
-
- uint32 ClipCount = GFX.pCurrentClip->Count [bg];
- uint32 HPos = HOffset;
- uint32 PixWidth = PPU.Mosaic;
-
- if (!ClipCount)
- ClipCount = 1;
-
- for (uint32 clip = 0; clip < ClipCount; clip++)
- {
- if (GFX.pCurrentClip->Count [bg])
- {
- Left = GFX.pCurrentClip->Left [clip][bg];
- Right = GFX.pCurrentClip->Right [clip][bg];
- uint32 r = Left % PPU.Mosaic;
- HPos = HOffset + Left;
- PixWidth = PPU.Mosaic - r;
- }
- uint32 s = Y * GFX_PPL + Left * GFX_PIXSIZE;
- for (uint32 x = Left; x < Right; x += PixWidth,
- s += PixWidth * GFX_PIXSIZE,
- HPos += PixWidth, PixWidth = PPU.Mosaic)
- {
- uint32 Quot = (HPos & OffsetMask) >> 3;
-
- if (x + PixWidth >= Right)
- PixWidth = Right - x;
-
- 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);
- }
-
- 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, s, HPos & 7, PixWidth,
- VirtAlign, Lines);
- }
- }
- }
-}
-
-void DrawBackgroundOffset (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
-#ifdef __DEBUG__
- printf("DrawBackgroundOffse(%i, %i, %i, %i)\n", BGMode, bg, Z1, Z2);
-#endif
-
- 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;
- SelectPalette();
-
- 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;
- }
-
- TileBlank = 0xFFFFFFFF;
- for (uint32 Y = GFX.StartY; Y <= GFX.EndY; Y++)
- {
- uint32 VOff = LineData [Y].BG[2].VOffset - 1;
- uint32 HOff = LineData [Y].BG[2].HOffset;
- int VirtAlign;
- int ScreenLine = VOff >> 3;
- 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;
- 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_32 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;
- HOffset = LineHOffset;
- 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;
- HOffset=LineHOffset;
- 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;
-
- if ((HCellOffset & OffsetEnableMask))
- HOffset = (HCellOffset & ~7)|(LineHOffset&7);
- else
- HOffset=LineHOffset;
- }
- }
- VirtAlign = ((Y + VOffset) & 7) << 3;
- ScreenLine = (VOffset + Y) >> OffsetShift;
-
- int tx_index;
- tx_index = ( ((VOffset + Y) & 15) <= 7 ) << 3;
-
- 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 = 8 - Offset;
- if (Count > MaxCount)
- Count = MaxCount;
-
- s -= Offset * GFX_PIXSIZE;
- Tile = READ_2BYTES(t);
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
-
- if (Tile != TileBlank)
- if (BG.TileSize == 8)
- (*DrawClippedTilePtr) (Tile, s, Offset, Count, VirtAlign, Lines);
- else
- {
- Tile += tx_table[tx_index + ((Tile & (H_FLIP | V_FLIP)) >> 13) + (Quot & 1)];
- if (Tile != TileBlank){
- (*DrawClippedTilePtr) (Tile, s, Offset, Count, VirtAlign, Lines);
- }
- }
-
- Left += Count;
- TotalCount += Count;
- s += (Offset + Count) * GFX_PIXSIZE;
- MaxCount = 8;
- }
- }
- }
-}
-
-void DrawBackgroundMode5 (uint32 /* BGMODE */, uint32 bg, uint8 Z1, uint8 Z2)
-{
-#ifdef __DEBUG__
- printf("DrawBackgroundMode5(?, %i, %i, %i)\n", bg, Z1, Z2);
-#endif
-
- CHECK_SOUND();
-
- uint8 depths [2] = {Z1, Z2};
-
- uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint32 Width;
-
- BG.StartPalette = 0;
- SelectPalette();
-
- 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 = GFX.EndY;
-
- for (int Y = GFX.StartY; Y <= endy; Y += Lines)
- {
- //int y = 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;
-
- 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 = (Left>>1) * 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 -= (Offset>>1);
- 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 += 4;
- }
-
- // Middle, unclipped tiles
- Count = Width - Count;
- int Middle = Count >> 3;
- Count &= 7;
- for (int C = Middle; C > 0; s += 4, 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);
- }
- }
- }
- }
- }
-}
-
-void DrawBackground_8(uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
-#ifdef __DEBUG__
- printf("DrawBackground_8(%i, %i, %i, %i)\n", BGMode, bg, Z1, Z2);
-#endif
- //uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint32 depths [2] = {Z1, Z2};
-
- SC0 = (uint16 *) &Memory.VRAM[PPU.BG[bg].SCBase << 1];
-
- SC1 = SC0 + ((PPU.BG[bg].SCSize & 1) << 10);
-
- if(SC1 >= (unsigned short*)(Memory.VRAM+0x10000)) SC1 = (uint16*)&Memory.VRAM[((uint8*)SC1-&Memory.VRAM[0]) & 0xffff];
-
- if (PPU.BG[bg].SCSize & 2)
- SC2 = SC1 + 1024;
- else
- SC2 = SC0;
-
- if(((uint8*)SC2-Memory.VRAM)>=0x10000) SC2 -= 0x08000;
-
- SC3 = SC2 + ((PPU.BG[bg].SCSize & 1) << 10);
-
- if(((uint8*)SC3-Memory.VRAM)>=0x10000) SC3 -= 0x08000;
-
- int Lines;
-
- TileBlank = 0xFFFFFFFF;
- for (uint32 Y = GFX.StartY; Y <= GFX.EndY; Y += Lines){
- int y_ppl = Y * GFX_PPL;
- uint32 VOffset = LineData [Y].BG[bg].VOffset;
- uint32 HOffset = LineData [Y].BG[bg].HOffset;
- int VirtAlign = (Y + VOffset) & 7;
-
- int maxLines = GFX.EndY - Y + 1;
- if ((8 - VirtAlign) < maxLines) maxLines = (8 - VirtAlign);
-
- for (Lines = 1; Lines < maxLines; Lines++)
- if ((VOffset != LineData [Y + Lines].BG[bg].VOffset) ||
- (HOffset != LineData [Y + Lines].BG[bg].HOffset))
- break;
-
-
- VirtAlign <<= 3;
-
- uint32 ScreenLine = (VOffset + Y) >> 3;
- uint16 *b1;
- uint16 *b2;
-
- if (ScreenLine & 0x20)
- b1 = SC2, b2 = SC3;
- else
- b1 = SC0, b2 = SC1;
-
- b1 += (ScreenLine & 0x1f) << 5;
- b2 += (ScreenLine & 0x1f) << 5;
-
- uint32 Left;
- uint32 Right;
- int clip = 0;
- int clipcount = GFX.pCurrentClip->Count [bg];
- if (!clipcount) {
- Left = 0;
- Right = 256;
- }
-
- do {
- if (clipcount) {
- Left = GFX.pCurrentClip->Left [clip][bg];
- Right = GFX.pCurrentClip->Right [clip][bg];
-
- if (Right <= Left) {clip++; continue;}
- }
-
- uint32 s = Left + y_ppl;
- uint32 HPos = (HOffset + Left) & 0x1ff;
- uint32 Quot = HPos >> 3;
- uint32 Count = 0;
- uint16 *t;
- uint16 *b;
-
- if (Quot > 31) {
- t = b2 + (Quot & 0x1f);
- b = b1;
- Quot -= 32;
- }
- else {
- t = b1 + Quot;
- b = b2;
- }
-
- uint32 Width = Right - Left;
-
- // Left hand edge clipped tile
- uint32 Offset = (HPos & 7);
- if (Offset){
- Count = 8 - Offset;
- if (Count > Width) Count = Width;
- s -= Offset;
- //Tile = READ_2BYTES(t);
- register uint32 Tile = *(t++);
- if (Tile != TileBlank){
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- (*DrawClippedTilePtr) (Tile, s, Offset, Count, VirtAlign, Lines);
- }
- //t++;
- if (Quot == 31) t = b;
- //else if (Quot == 63) t = b1;
- Quot++;
- s += 8;
- }
-
- // Middle, unclipped tiles
- Count = Width - Count;
- for (int C = Count >> 3; C > 0; s += 8, Quot++, C--){
- //Tile = READ_2BYTES(t);
- register uint32 Tile = *(t++);
- if (Tile != TileBlank){
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- (*DrawTilePtr) (Tile, s, VirtAlign, Lines);
- }
-
- //t++;
- if (Quot == 31) t = b;
- //else if (Quot == 63) t = b1;
- }
-
- // Right-hand edge clipped tiles
- if (Count & 7){
- //Tile = READ_2BYTES(t);
- register uint32 Tile = *t;
- if (Tile != TileBlank){
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- (*DrawClippedTilePtr) (Tile, s, 0, Count & 7, VirtAlign, Lines);
- }
- }
- clip ++;
- } while (clip < clipcount);
- }
-}
-
-void DrawBackground_16 (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
-#ifdef __DEBUG__
- printf("DrawBackground_16(%i, %i, %i, %i)\n", BGMode, bg, Z1, Z2);
-#endif
- //uint32 Tile;
- uint16 *SC0;
- uint16 *SC1;
- uint16 *SC2;
- uint16 *SC3;
- uint32 depths [2] = {Z1, Z2};
-
- SC0 = (uint16 *) &Memory.VRAM[PPU.BG[bg].SCBase << 1];
-
- SC1 = SC0 + ((PPU.BG[bg].SCSize & 1) << 10);
-
- if(SC1 >= (unsigned short*)(Memory.VRAM+0x10000)) SC1 = (uint16*)&Memory.VRAM[((uint8*)SC1-&Memory.VRAM[0]) & 0xffff];
-
- if (PPU.BG[bg].SCSize & 2)
- SC2 = SC1 + 1024;
- else
- SC2 = SC0;
-
- if(((uint8*)SC2-Memory.VRAM)>=0x10000) SC2 -= 0x08000;
-
- SC3 = SC2 + ((PPU.BG[bg].SCSize & 1) << 10);
-
- if(((uint8*)SC3-Memory.VRAM)>=0x10000) SC3 -= 0x08000;
-
- int Lines;
-
- TileBlank = 0xFFFFFFFF;
- for (uint32 Y = GFX.StartY; Y <= GFX.EndY; Y += Lines){
- int y_ppl = Y * GFX_PPL;
- uint32 VOffset = LineData [Y].BG[bg].VOffset;
- uint32 HOffset = LineData [Y].BG[bg].HOffset;
- int VirtAlign = (Y + VOffset) & 7;
-
- int maxLines = GFX.EndY - Y + 1;
- if ((8 - VirtAlign) < maxLines) maxLines = (8 - VirtAlign);
-
- for (Lines = 1; Lines < maxLines; Lines++)
- if ((VOffset != LineData [Y + Lines].BG[bg].VOffset) ||
- (HOffset != LineData [Y + Lines].BG[bg].HOffset))
- break;
-
-
- VirtAlign <<= 3;
-
- uint32 ScreenLine = (VOffset + Y) >> 4;
- int tx_index = ( ((VOffset + Y) & 15) <= 7 ) << 3;
- uint16 *b1;
- uint16 *b2;
-
- if (ScreenLine & 0x20)
- b1 = SC2, b2 = SC3;
- else
- b1 = SC0, b2 = SC1;
-
- b1 += (ScreenLine & 0x1f) << 5;
- b2 += (ScreenLine & 0x1f) << 5;
-
- uint32 Left;
- uint32 Right;
- int clip = 0;
- int clipcount = GFX.pCurrentClip->Count [bg];
- if (!clipcount) {
- Left = 0;
- Right = 256;
- }
-
- do {
- if (clipcount) {
- Left = GFX.pCurrentClip->Left [clip][bg];
- Right = GFX.pCurrentClip->Right [clip][bg];
-
- if (Right <= Left) {clip++; continue;}
- }
-
- uint32 s = Left + y_ppl;
- uint32 HPos = (HOffset + Left) & 0x3ff;
- uint32 Quot = HPos >> 3;
- uint32 Count = 0;
- uint16 *t;
- uint16 *b;
-
- if (Quot > 63) {
- t = b2 + ((Quot >> 1) & 0x1f);
- b = b1;
- Quot -= 64;
- }
- else {
- t = b1 + (Quot >> 1);
- b = b2;
- }
-
-
- uint32 Width = Right - Left;
-
- // Left hand edge clipped tile
- uint32 Offset = (HPos & 7);
- if (Offset){
- Count = 8 - Offset;
- if (Count > Width) Count = Width;
- s -= Offset;
- //Tile = READ_2BYTES(t);
- uint32 Tile = *(t);
- Tile += tx_table[tx_index + ((Tile & (H_FLIP | V_FLIP)) >> 13) + (Quot & 1)];
- if (Tile != TileBlank){
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- (*DrawClippedTilePtr) (Tile, s, Offset, Count, VirtAlign, Lines);
- }
- //t++;
- t += Quot & 1;
- if (Quot == 63) t = b;
- Quot++;
- s += 8;
- }
-
- // Middle, unclipped tiles
- Count = Width - Count;
- for (int C = Count >> 3; C > 0; s += 8, Quot++, C--){
- //Tile = READ_2BYTES(t);
- uint32 Tile = *(t);
- Tile += tx_table[tx_index + ((Tile & (H_FLIP | V_FLIP)) >> 13) + (Quot & 1)];
- if (Tile != TileBlank){
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- //(*DrawTilePtr) (Tile, s, VirtAlign, Lines);
- }
-
- //t++;
- t += Quot & 1;
- if (Quot == 63) t = b;
- }
-
- // Right-hand edge clipped tiles
- if (Count & 7){
- //Tile = READ_2BYTES(t);
- uint32 Tile = *(t);
- Tile += tx_table[tx_index + ((Tile & (H_FLIP | V_FLIP)) >> 13) + (Quot & 1)];
- if (Tile != TileBlank){
- GFX.Z1 = GFX.Z2 = depths [(Tile & 0x2000) >> 13];
- (*DrawClippedTilePtr) (Tile, s, 0, Count & 7, VirtAlign, Lines);
- }
- }
- clip ++;
- } while (clip < clipcount);
- }
-}
-
-
-inline void DrawBackground (uint32 BGMode, uint32 bg, uint8 Z1, uint8 Z2)
-{
-//StartAnalyze();
-
- BG.TileSize = BGSizes [PPU.BG[bg].BGSize];
- BG.BitShift = BitShifts[BGMode][bg];
- SelectConvertTile();
- 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 (IPPU.DirectColourMapsNeedRebuild && BG.DirectColourMode) S9xBuildDirectColourMaps ();
-
- 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);
- break;
-
- case 5:
- case 6: // XXX: is also offset per tile.
- DrawBackgroundMode5 (BGMode, bg, Z1, Z2);
- break;
- case 0:
- case 1:
- case 3:
- CHECK_SOUND();
-
- if (BGMode == 0) BG.StartPalette = bg << 5;
- else BG.StartPalette = 0;
- SelectPalette();
-
- if (BG.TileSize == 8) DrawBackground_8 (BGMode, bg, Z1, Z2);
- else DrawBackground_16 (BGMode, bg, Z1, Z2);
- break;
- }
-}
-
-#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);
-
-void RenderScreen (uint8 *Screen, bool8_32 sub, bool8_32 force_no_add, uint8 D)
-{
- bool8_32 BG0;
- bool8_32 BG1;
- bool8_32 BG2;
- bool8_32 BG3;
- bool8_32 OB;
-
- GFX.S = Screen;
-
- if (!sub)
- {
- GFX.pCurrentClip = &IPPU.Clip [0];
- BG0 = ON_MAIN (0) && !(Settings.os9x_hack & GFX_IGNORE_BG0);
- BG1 = ON_MAIN (1) && !(Settings.os9x_hack & GFX_IGNORE_BG1);
- BG2 = ON_MAIN (2) && !(Settings.os9x_hack & GFX_IGNORE_BG2);
- BG3 = ON_MAIN (3) && !(Settings.os9x_hack & GFX_IGNORE_BG3);
- OB = ON_MAIN (4) && !(Settings.os9x_hack & GFX_IGNORE_OBJ);
- }
- else
- {
- GFX.pCurrentClip = &IPPU.Clip [1];
- BG0 = ON_SUB (0) && !(Settings.os9x_hack & GFX_IGNORE_BG0);
- BG1 = ON_SUB (1) && !(Settings.os9x_hack & GFX_IGNORE_BG1);
- BG2 = ON_SUB (2) && !(Settings.os9x_hack & GFX_IGNORE_BG2);
- BG3 = ON_SUB (3) && !(Settings.os9x_hack & GFX_IGNORE_BG3);
- OB = ON_SUB (4) && !(Settings.os9x_hack & GFX_IGNORE_OBJ);
- }
-
-#ifdef __DEBUG__
- printf("Screen[y1,y2]:[%i,%i],Mode:%i, BG0:%i,BG1:%i,BG2:%i,BG3:%i,OBJ:%i\n", GFX.StartY, GFX.EndY, PPU.BGMode, BG0, BG1, BG2, BG3, OB);
-#endif
-
- sub |= force_no_add;
-
- if (PPU.BGMode <= 1)
- {
- if (OB)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4), true);
- 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);
- }
- }
- else if (PPU.BGMode != 7)
- {
- if (OB)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4), true);
- DrawOBJS (!sub, D);
- }
- if (BG0)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(0));
- DrawBackground (PPU.BGMode, 0, D + 5, D + 13);
- }
- if (PPU.BGMode != 6 && BG1)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(1));
- DrawBackground (PPU.BGMode, 1, D + 2, D + 9);
- }
- }
- else
- {
- if (OB && ((SNESGameFixes.Mode7Hack && D) || !SNESGameFixes.Mode7Hack))
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4), true);
- DrawOBJS (!sub, D);
- }
- if (BG0 || ((Memory.FillRAM [0x2133] & 0x40) && BG1))
- {
- int bg;
-
- if ((Memory.FillRAM [0x2133] & 0x40)&&BG1)
- {
- Mode7Depths [0] = (BG0?5:1) + D;
- Mode7Depths [1] = 9 + D;
- bg = 1;
- if (sub || !SUB_OR_ADD(0))
- {
- DrawBGMode7Background16Prio (Screen, bg);
- }
- else
- {
- if (GFX.r2131 & 0x80)
- {
- if (GFX.r2131 & 0x40)
- {
- DrawBGMode7Background16PrioSub1_2 (Screen, bg);
- }
- else
- {
- DrawBGMode7Background16PrioSub (Screen, bg);
- }
- }
- else
- {
- if (GFX.r2131 & 0x40)
- {
- DrawBGMode7Background16PrioAdd1_2 (Screen, bg);
- }
- else
- {
- DrawBGMode7Background16PrioAdd (Screen, bg);
- }
- }
- }
- }
- else
- {
- bg = 0;
- if (sub || !SUB_OR_ADD(0))
- {
- if (D || !SNESGameFixes.Mode7Hack) DrawBGMode7Background16 (Screen, bg, D+5);
- else DrawBGMode7Background16New (Screen);
- }
- else
- {
- if (GFX.r2131 & 0x80)
- {
- if (GFX.r2131 & 0x40)
- {
- DrawBGMode7Background16Sub1_2 (Screen, bg, D+5);
- }
- else
- {
- DrawBGMode7Background16Sub (Screen, bg, D+5);
- }
- }
- else
- {
- if (GFX.r2131 & 0x40)
- {
- DrawBGMode7Background16Add1_2 (Screen, bg, D+5);
- }
- else
- {
- DrawBGMode7Background16Add (Screen, bg, D+5);
- }
- }
- }
- }
- }
- if (OB && SNESGameFixes.Mode7Hack && D==0)
- {
- SelectTileRenderer (sub || !SUB_OR_ADD(4), true);
- DrawOBJS (!sub, D);
- }
- }
-}
-
-#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 == '#')
- *s = 0xffff;
- else
- if (p == '.')
- *s = BLACK;
- }
- }
-}
-
-static void S9xDisplayFrameRate ()
-{
- uint8 *Screen = GFX.Screen + 2 +
- (IPPU.RenderedScreenHeight - font_height - 1) * GFX_PITCH;
- 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_PITCH;
- 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) * sizeof (uint16) * max_chars;
- 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 () // ~30-50ms! (called from FLUSH_REDRAW())
-{
- GFX.S = GFX.Screen;
-
- unsigned char *memoryfillram = Memory.FillRAM;
-
- // get local copies of vid registers to be used later
- GFX.r2131 = memoryfillram [0x2131]; // ADDITION/SUBTRACTION & SUBTRACTION DESIGNATION FOR EACH SCREEN
- GFX.r212c = memoryfillram [0x212c]; // MAIN SCREEN, DESIGNATION - used to enable BGS
- GFX.r212d = memoryfillram [0x212d]; // SUB SCREEN DESIGNATION - used to enable sub BGS
- GFX.r2130 = memoryfillram [0x2130]; // INITIAL SETTINGS FOR FIXED COLOR ADDITION OR SCREEN ADDITION
-
- // If external sync is off and
- // main screens have not been configured the same as the sub screen and
- // color addition and subtraction has been diabled then
- // Pseudo is 1
- // anything else it is 0
- GFX.Pseudo = (memoryfillram [0x2133] & 8) != 0 && // Use EXTERNAL SYNCHRONIZATION?
- (GFX.r212c & 15) != (GFX.r212d & 15) && // Are the main screens different from the sub screens?
- (GFX.r2131 & 0x3f) == 0; // Is colour data addition/subtraction disabled on all BGS?
-
- // If sprite data has been changed then go through and
- // refresh the sprites.
- if (IPPU.OBJChanged) S9xSetupOBJ ();
-
- if (PPU.RecomputeClipWindows) ComputeClipWindows ();
-
- GFX.StartY = IPPU.PreviousLine;
- if ((GFX.EndY = IPPU.CurrentLine - 1) >= PPU.ScreenHeight)
- GFX.EndY = PPU.ScreenHeight - 1;
-
- uint32 starty = GFX.StartY;
- uint32 endy = GFX.EndY;
- uint32 black = BLACK | (BLACK << 16);
-
-
- if (GFX.Pseudo)
- {
- GFX.r2131 = 0x5f; //0101 1111 - enable addition/subtraction on all BGS and sprites and "1/2 OF COLOR DATA" DESIGNATION
- GFX.r212c &= (Memory.FillRAM [0x212d] | 0xf0);
- GFX.r212d |= (Memory.FillRAM [0x212c] & 0x0f);
- GFX.r2130 |= 2; // enable ADDITION/SUBTRACTION FOR SUB SCREEN
- }
-
- // Check to see if any transparency effects are currently in use
- if (!PPU.ForcedBlanking && ADD_OR_SUB_ON_ANYTHING &&
- (GFX.r2130 & 0x30) != 0x30 &&
- !((GFX.r2130 & 0x30) == 0x10 && IPPU.Clip[1].Count[5] == 0))
- {
- // transparency effects in use, so lets get busy!
- struct ClipData *pClip;
- uint32 fixedColour;
- GFX.FixedColour = BUILD_PIXEL (IPPU.XB [PPU.FixedColourRed],
- IPPU.XB [PPU.FixedColourGreen],
- IPPU.XB [PPU.FixedColourBlue]);
- fixedColour = (GFX.FixedColour<<16|GFX.FixedColour);
- // 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.
- // loop around all of the lines being updated
- for (uint32 y = starty; y <= endy; y++)
- {
- // Clear the subZbuffer
- memset32 ((uint32_t*)(GFX.SubZBuffer + y * GFX_ZPITCH),0, (256>>2));
- // Clear the Zbuffer
- memset32 ((uint32_t*)(GFX.ZBuffer + y * GFX_ZPITCH),0, (256>>2));
- if (IPPU.Clip[0].Count [5]) {
- // if there is clipping then clear subscreen to a black color
- memset32 ((uint32_t*)(GFX.SubScreen + y * GFX_PITCH), black, (256>>1));
- }
-
- // loop through all window clippings
- 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],
- 1, pClip->Right [c][5] - pClip->Left [c][5]);
-
- 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.
-
- register unsigned int width = pClip->Right [c][5] - pClip->Left [c][5];
- if (width > 0) {
- asm volatile (
- " mov r0, %[fixedcolour] \n"
- " subs %[width], %[width], #4 \n"
- " bmi 2f \n"
-
- "1: \n"
- " subs %[width], %[width], #4 \n"
- " stmia %[p]!, {r0, %[fixedcolour]}\n"
- " bpl 1b \n"
-
- "2: \n"
- " tst %[width], #1 \n"
- " strneh %[fixedcolour], [%[p]], #2 \n"
-
- " tst %[width], #2 \n"
- " strne %[fixedcolour], [%[p]], #4 \n"
-
- : [width] "+r" (width)
- : [fixedcolour] "r" (fixedColour),
- [p] "r" (((uint16 *) (GFX.SubScreen + y * GFX_PITCH)) + pClip->Left [c][5])
- : "r0", "cc"
- );
- }
- }
- }
- }
- }
-
- }
- else
- {
- // No windows are clipping the main screen
- // this simplifies the screen clearing process
- // loop through all of the lines to be updated
- for (uint32 y = starty; y <= endy; y++) {
- // Clear the Zbuffer
- memset32 ((uint32_t*)(GFX.ZBuffer + y * GFX_ZPITCH),0, (256>>2));
- // clear the sub Zbuffer to 1
- memset32 ((uint32_t*)(GFX.SubZBuffer + y * GFX_ZPITCH), 0x01010101, (256>>2));
-
- 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.
-
- memset32 ((uint32_t*)(GFX.SubScreen + y * GFX_PITCH), fixedColour, (256>>1));
- }
- }
- }
- if (ANYTHING_ON_SUB)
- {
- GFX.DB = GFX.SubZBuffer;
- RenderScreen (GFX.SubScreen, TRUE, TRUE, SUB_SCREEN_DEPTH);
- }
-
- if (IPPU.Clip [0].Count [5])
- {
- asm volatile (
- "1: \n"
- " mov r1, #(256 >> 2) \n"
-
- "2: \n"
- // four pixels at once
- " ldrb r0, [%[d]], #1 \n"
- " ldrb r4, [%[d]], #1 \n"
-
- " bics r0, r0, #1 \n"
- " ldrneh r0, [%[p], %[delta]] \n"
-
- " bics r4, r4, #1 \n"
- " ldrneh r4, [%[p], %[delta2]] \n"
-
- " strh r0, [%[p]], #2 \n"
- " strh r4, [%[p]], #2 \n"
-
- " ldrb r0, [%[d]], #1 \n"
- " ldrb r4, [%[d]], #1 \n"
-
- " bics r0, r0, #1 \n"
- " ldrneh r0, [%[p], %[delta]] \n"
-
- " bics r4, r4, #1 \n"
- " ldrneh r4, [%[p], %[delta2]] \n"
-
- " strh r0, [%[p]], #2 \n"
- " strh r4, [%[p]], #2 \n"
-
- " subs r1, r1, #1 \n"
- " bne 2b \n"
- "3: \n"
- " subs %[lines], %[lines], #1 \n"
- " add %[p], %[p], #(640 - 512) \n"
- " add %[d], %[d], #(320 - 256) \n"
- " bne 1b \n"
- "4: \n"
-
- :
- : [p] "r" ((uint16 *) (GFX.Screen + starty * GFX_PITCH)),
- [d] "r" (GFX.SubZBuffer + starty * GFX_ZPITCH),
- [delta] "r" (GFX.Delta << 1),
- [delta2] "r" ((GFX.Delta << 1) + 2),
- [lines] "r" (endy - starty + 1)
- : "r0", "r1", "r3", "r4", "cc"
- );
- }
-
- 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;
- Count = 1;
- }
-
- for (uint32 b = 0; b < Count; b++)
- {
- if (pClip->Count [5])
- {
- Left = pClip->Left [b][5];
- Right = pClip->Right [b][5];
- if (Right <= Left)
- continue;
- }
-#define SUBSCREEN_BG(rop, half) \
-\
-asm volatile (\
-" ldrb r0, [%[d]], #1 \n"\
-"71: \n"\
-\
-" movs r0, r0 \n"\
-" ldreqb r1, [%[d], %[zdelta]] \n"\
-" bne 72f \n"\
-\
-" cmp r1, #1 \n"\
-" beq 74f \n"\
-" ldrh r1, [%[p], %[delta]] \n"\
-" mov r0, %[back] \n"\
-\
-ROP_##rop##half (r0, r1)\
-\
-" strh r0, [%[p]] \n"\
-"72: \n"\
-" add %[p], %[p], #2 \n"\
-" subs %[c], %[c], #1 \n"\
-" ldrneb r0, [%[d]], #1 \n"\
-" bne 71b \n"\
-" b 75f \n"\
-"74: \n"\
-" streqh %[fixedcolour], [%[p]], #2 \n"\
-" strloh %[back], [%[p]], #2 \n"\
-" subs %[c], %[c], #1 \n"\
-" ldrneb r0, [%[d]], #1 \n"\
-" bne 71b \n"\
-"75: \n"\
-:\
-:[p] "r" ((uint16 *) (GFX.Screen + y * GFX_PITCH) + Left),\
- [d] "r" (GFX.ZBuffer + y * GFX_ZPITCH + Left),\
- [zdelta] "r" (GFX.DepthDelta),\
- [back] "r" (back),\
- [delta] "r" (GFX.Delta << 1),\
- [fixedcolour] "r" (COLOR_##rop (back, GFX.FixedColour)),\
- [c] "r" (Right - Left) \
-: "r0", "r1", "cc"\
-);
- if (GFX.r2131 & 0x80)
- {
- if (GFX.r2131 & 0x40)
- {
- SUBSCREEN_BG(SUB, 1_2)
- }
- else
- {
- SUBSCREEN_BG(SUB, )
-
- }
- }
- else
- if (GFX.r2131 & 0x40)
- {
- SUBSCREEN_BG(ADD, 1_2)
- }
- else if (back != 0) {
- SUBSCREEN_BG(ADD, )
- }
- 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.
- asm volatile (
- " ldrb r0, [%[d]], #1 \n"
- "31: \n"
-
- " movs r0, r0 \n"
- " ldreqb r1, [%[d], %[zdelta]] \n"
- " bne 32f \n"
-
- " cmp r1, #1 \n"
- " ldrhih r0, [%[p], %[delta]] \n"
- " strloh %[back], [%[p]] \n"
- " streqh %[fixedcolour], [%[p]] \n"
- " strhih r0, [%[p]] \n"
-
- "32: \n"
- " subs %[c], %[c], #1 \n"
- " add %[p], %[p], #2 \n"
- " ldrneb r0, [%[d]], #1 \n"
- " bne 31b \n"
- " \n"
- :
- :[p] "r" ((uint16 *) (GFX.Screen + y * GFX_PITCH) + Left),
- [d] "r" (GFX.ZBuffer + y * GFX_ZPITCH + Left),
- [zdelta] "r" (GFX.DepthDelta),
- [back] "r" (back),
- [delta] "r" (GFX.Delta << 1),
- [fixedcolour] "r" (GFX.FixedColour),
- [c] "r" (Right - Left)
- : "r0", "r1", "cc"
-
- );
-
- }
- }
- }
- }
-
- }
- 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];
- uint32 Right = pClip->Right [b][5];
- if (Left >= Right) continue;
- asm volatile (
-
- " tst %[c], #1 \n"
- " bne 21f \n"
-
- " ldrb r0, [%[d]], #1 \n"
- " add %[p], %[p], #2 \n"
- " movs r0, r0 \n"
- " streqh %[back], [%[p], #-2] \n"
- " subs %[c], %[c], #1 \n"
- " beq 22f \n"
-
- "21: \n"
-
- " ldrb r0, [%[d]], #1 \n"
- " ldrb r1, [%[d]], #1 \n"
- " add %[p], %[p], #4 \n"
-
- " movs r0, r0 \n"
- " streqh %[back], [%[p], #-4] \n"
-
- " movs r1, r1 \n"
- " streqh %[back], [%[p], #-2] \n"
-
- " subs %[c], %[c], #2 \n"
- " bhi 21b \n"
- "22: \n"
- :
- :[p] "r" ((uint16 *) (GFX.Screen + y * GFX_PITCH) + Left),
- [d] "r" (GFX.ZBuffer + y * GFX_ZPITCH + Left),
- [back] "r" (back),
- [c] "r" (Right - Left)
- : "r0", "r1", "cc"
-
- );
- }
- }
- }
- else
- {
- asm volatile (
- "@ -- SubScreen clear \n"
- "1113: \n"
- " mov r1, #(256/8) \n"
- "1112: \n"
- " ldr r0, [%[d]], #4 \n"
-
- " add %[p], %[p], #8 \n"
-
- " tst r0, #0x0ff \n"
- " streqh %[back], [%[p], #-8] \n"
-
- " tst r0, #0x0ff00 \n"
- " streqh %[back], [%[p], #-6] \n"
-
- " tst r0, #0x0ff0000 \n"
- " streqh %[back], [%[p], #-4] \n"
-
- " tst r0, #0x0ff000000 \n"
- " streqh %[back], [%[p], #-2] \n"
-
- " ldr r0, [%[d]], #4 \n"
-
- " add %[p], %[p], #8 \n"
-
- " tst r0, #0x0ff \n"
- " streqh %[back], [%[p], #-8] \n"
-
- " tst r0, #0x0ff00 \n"
- " streqh %[back], [%[p], #-6] \n"
-
- " tst r0, #0x0ff0000 \n"
- " streqh %[back], [%[p], #-4] \n"
-
- " tst r0, #0x0ff000000 \n"
- " streqh %[back], [%[p], #-2] \n"
-
- " subs r1, r1, #1 \n"
- " bne 1112b \n"
-
- " subs %[lines], %[lines], #1 \n"
- " add %[p], %[p], #(640-512) \n"
- " add %[d], %[d], #(320-256) \n"
- " bne 1113b \n"
- "1114:"
- :
- :[p] "r" (GFX.Screen + starty * GFX_PITCH),
- [d] "r" (GFX.ZBuffer + starty * GFX_ZPITCH),
- [back] "r" (back),
- [lines] "r" (endy - starty + 1)
- : "r0", "r1", "cc"
- );
- }
- }
- }
- else
- {
- // 16bit and transparency but currently no transparency effects in
- // operation.
-
- // get the back colour of the current screen
- uint32 back = IPPU.ScreenColors [0] |
- (IPPU.ScreenColors [0] << 16);
-
- // if forceblanking in use then use black instead of the back color
- if (PPU.ForcedBlanking)
- back = black;
-
- // not sure what Clip is used for yet
- // could be a check to see if there is any clipping present?
- if (IPPU.Clip [0].Count[5])
- {
-
- // loop through all of the lines that are going to be updated as part of this screen update
- for (uint32 y = starty; y <= endy; y++)
- {
- memset32 ((uint32_t*)(GFX.Screen + y * GFX_PITCH), black,
- IPPU.RenderedScreenWidth>>1);
-
- if (black!=back)
- {
- for (uint32 c = 0; c < IPPU.Clip [0].Count [5]; c++)
- {
- if (IPPU.Clip [0].Right [c][5] > IPPU.Clip [0].Left [c][5])
- {
- register unsigned int width = IPPU.Clip [0].Right [c][5] - IPPU.Clip [0].Left [c][5];
- if (width > 0) {
- asm volatile (
- " mov r0, %[back] \n"
- " subs %[width], %[width], #4 \n"
- " bmi 2f \n"
-
- "1: \n"
- " subs %[width], %[width], #4 \n"
- " stmia %[p]!, {r0, %[back]} \n"
- " bpl 1b \n"
-
- "2: \n"
- " tst %[width], #1 \n"
- " strneh %[back], [%[p]], #2 \n"
-
- " tst %[width], #2 \n"
- " strne %[back], [%[p]], #4 \n"
- : [width] "+r" (width)
- : [back] "r" (back | (back << 16)),
- [p] "r" (((uint16 *) (GFX.SubScreen + y * GFX_PITCH)) + IPPU.Clip [0].Left [c][5])
- : "r0", "cc"
- );
- }
-
- }
- }
- }
- }
- }
- else
- {
- // there is no clipping to worry about so just fill with the back colour
- for (uint32 y = starty; y <= endy; y++) {
- memset32 ((uint32_t*)(GFX.Screen + y * GFX_PITCH), back, (256>>1));
- }
-
- }
-
- // If Forced blanking is not in effect
- if (!PPU.ForcedBlanking)
- {
- // Clear the Zbuffer for each of the lines which are going to be updated
- for (uint32 y = starty; y <= endy; y++) {
- memset32 ((uint32_t*)(GFX.ZBuffer + y * GFX_ZPITCH), 0, (256>>2));
- }
- GFX.DB = GFX.ZBuffer; // save pointer to Zbuffer in GFX object
- RenderScreen (GFX.Screen, FALSE, TRUE, SUB_SCREEN_DEPTH);
- }
- }
- IPPU.PreviousLine = IPPU.CurrentLine;
-}
-
-// -x-
-void S9xUpdateScreenNoTransparency () // ~30-50ms! (called from FLUSH_REDRAW())
-{
- GFX.S = GFX.Screen;
-
- unsigned char *memoryfillram = Memory.FillRAM;
-
- // get local copies of vid registers to be used later
- GFX.r2131 = memoryfillram [0x2131]; // ADDITION/SUBTRACTION & SUBTRACTION DESIGNATION FOR EACH SCREEN
- GFX.r212c = memoryfillram [0x212c]; // MAIN SCREEN, DESIGNATION - used to enable BGS
- GFX.r212d = memoryfillram [0x212d]; // SUB SCREEN DESIGNATION - used to enable sub BGS
- GFX.r2130 = memoryfillram [0x2130]; // INITIAL SETTINGS FOR FIXED COLOR ADDITION OR SCREEN ADDITION
-
- // If external sync is off and
- // main screens have not been configured the same as the sub screen and
- // color addition and subtraction has been diabled then
- // Pseudo is 1
- // anything else it is 0
- GFX.Pseudo = (memoryfillram [0x2133] & 8) != 0 && // Use EXTERNAL SYNCHRONIZATION?
- (GFX.r212c & 15) != (GFX.r212d & 15) && // Are the main screens different from the sub screens?
- (GFX.r2131 & 0x3f) == 0; // Is colour data addition/subtraction disabled on all BGS?
-
- // If sprite data has been changed then go through and
- // refresh the sprites.
- if (IPPU.OBJChanged)
- {
- S9xSetupOBJ ();
- }
-
- if (PPU.RecomputeClipWindows) ComputeClipWindows();
-
- GFX.StartY = IPPU.PreviousLine;
- if ((GFX.EndY = IPPU.CurrentLine - 1) >= PPU.ScreenHeight)
- GFX.EndY = PPU.ScreenHeight - 1;
-
- uint32 starty = GFX.StartY;
- uint32 endy = GFX.EndY;
-
- uint32 black = BLACK | (BLACK << 16);
-
- // get back colour to be used in clearing the screen
- register uint32 back;
- if (!(Memory.FillRAM [0x2131] & 0x80) &&(Memory.FillRAM[0x2131] & 0x20) &&
- (PPU.FixedColourRed || PPU.FixedColourGreen || PPU.FixedColourBlue))
- {
- back = (IPPU.XB[PPU.FixedColourRed]<<11) |
- (IPPU.XB[PPU.FixedColourGreen] << 6) |
- (IPPU.XB[PPU.FixedColourBlue] << 1) | 1;
- back = (back << 16) | back;
- }
- else
- {
- back = IPPU.ScreenColors [0] | (IPPU.ScreenColors [0] << 16);
- }
-
- // if Forcedblanking in use then back colour becomes black
- if (PPU.ForcedBlanking)
- back = black;
- else
- {
- SelectTileRenderer (TRUE); //selects the tile renderers to be used
- // TRUE means to use the default
- // FALSE means use best renderer based on current
- // graphics register settings
- }
-
- // now clear all graphics lines which are being updated using the back colour
- for (register uint32 y = starty; y <= endy; y++)
- {
- memset32 ((uint32_t*)(GFX.Screen + y * GFX_PITCH), back,
- IPPU.RenderedScreenWidth>>1);
- }
-
- if (!PPU.ForcedBlanking)
- {
- // Loop through all lines being updated and clear the
- // zbuffer for each of the lines
- for (uint32 y = starty; y <= endy; y++)
- {
- memset32 ((uint32_t*)(GFX.ZBuffer + y * GFX_ZPITCH), 0,
- IPPU.RenderedScreenWidth>>2);
- }
- GFX.DB = GFX.ZBuffer; // save pointer to Zbuffer in GFX object
- GFX.pCurrentClip = &IPPU.Clip [0];
-
-// Define an inline function to handle clipping
-#define FIXCLIP(n) \
-if (GFX.r212c & (1 << (n))) \
- GFX.pCurrentClip = &IPPU.Clip [0]; \
-else \
- GFX.pCurrentClip = &IPPU.Clip [1]
-
-// Define an inline function to handle which BGs are being displayed
-#define DISPLAY(n) ((GFX.r212c & n) || ((GFX.r212d & n) && subadd))
-
- uint8 subadd = GFX.r2131 & 0x3f;
-
- // go through all BGS are check if they need to be displayed
- bool8_32 BG0 = DISPLAY(1) && !(Settings.os9x_hack & GFX_IGNORE_BG0);
- bool8_32 BG1 = DISPLAY(2) && !(Settings.os9x_hack & GFX_IGNORE_BG1);
- bool8_32 BG2 = DISPLAY(4) && !(Settings.os9x_hack & GFX_IGNORE_BG2);
- bool8_32 BG3 = DISPLAY(8) && !(Settings.os9x_hack & GFX_IGNORE_BG3);
- bool8_32 OB = DISPLAY(16) && !(Settings.os9x_hack & GFX_IGNORE_OBJ);
-
- if (PPU.BGMode <= 1)
- {
- // screen modes 0 and 1
- if (OB)
- {
- FIXCLIP(4);
- DrawOBJS ();
- }
- if (BG0)
- {
- FIXCLIP(0);
- DrawBackground (PPU.BGMode, 0, 10, 14);
- }
- if (BG1)
- {
- FIXCLIP(1);
- DrawBackground (PPU.BGMode, 1, 9, 13);
- }
- if (BG2)
- {
- FIXCLIP(2);
- DrawBackground (PPU.BGMode, 2, 3,
- PPU.BG3Priority ? 17 : 6);
- }
- if (BG3 && PPU.BGMode == 0)
- {
- FIXCLIP(3);
- DrawBackground (PPU.BGMode, 3, 2, 5);
- }
- }
- else if (PPU.BGMode != 7)
- {
- // screen modes 2 and up but not mode 7
- if (OB)
- {
- FIXCLIP(4);
- DrawOBJS ();
- }
- if (BG0)
- {
- FIXCLIP(0);
- DrawBackground (PPU.BGMode, 0, 5, 13);
- }
- if (BG1 && PPU.BGMode != 6)
- {
- FIXCLIP(1);
- DrawBackground (PPU.BGMode, 1, 2, 9);
- }
- }
- else
- {
- // screen mode 7
- DrawBGMode7Background16New (GFX.Screen);
- if (OB)
- {
- FIXCLIP(4);
- DrawOBJS ();
- }
- }
- }
- IPPU.PreviousLine = IPPU.CurrentLine;
-}
-
-// -x-
-
-#ifdef GFX_MULTI_FORMAT
-
-#define _BUILD_PIXEL(F) \
-uint32 BuildPixel##F(uint32 R, uint32 G, uint32 B) \
-{ \
- return (BUILD_PIXEL_##F(R,G,B)); \
-}\
-uint32 BuildPixel2##F(uint32 R, uint32 G, uint32 B) \
-{ \
- return (BUILD_PIXEL2_##F(R,G,B)); \
-} \
-void DecomposePixel##F(uint32 pixel, uint32 &R, uint32 &G, uint32 &B) \
-{ \
- DECOMPOSE_PIXEL_##F(pixel,R,G,B); \
-}
-
-_BUILD_PIXEL(RGB565)
-_BUILD_PIXEL(RGB555)
-_BUILD_PIXEL(BGR565)
-_BUILD_PIXEL(BGR555)
-_BUILD_PIXEL(GBR565)
-_BUILD_PIXEL(GBR555)
-_BUILD_PIXEL(RGB5551)
-
-bool8_32 S9xSetRenderPixelFormat (int format)
-{
- extern uint32 current_graphic_format;
-
- current_graphic_format = format;
-
- switch (format)
- {
- case RGB565:
- _BUILD_SETUP(RGB565)
- return (TRUE);
- case RGB555:
- _BUILD_SETUP(RGB555)
- return (TRUE);
- case BGR565:
- _BUILD_SETUP(BGR565)
- return (TRUE);
- case BGR555:
- _BUILD_SETUP(BGR555)
- return (TRUE);
- case GBR565:
- _BUILD_SETUP(GBR565)
- return (TRUE);
- case GBR555:
- _BUILD_SETUP(GBR555)
- return (TRUE);
- case RGB5551:
- _BUILD_SETUP(RGB5551)
- return (TRUE);
- default:
- break;
- }
- return (FALSE);
-}
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 09:38:56 +0000